JP2014030335A - Rotary electric machine with brake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric machine with a brake that can increase driving force of the brake by lowering costs by using one power source for both a field winding and the brake in common, and driving the brake with magnetic attraction force based upon magnetic flux flowing through a magnetic circuit.SOLUTION: A rotary electric machine with a brake includes: a first fixed core block 16 which is fixed to a main shaft 4; a second fixed core block 17 which is arranged on one axial side of the first fixed core block 16 movably in an axial direction; a compression coil spring 21 which energizes the second fixed core block 17 to the one axial side; and a lining 24 which is arranged on an end face of the second fixed core block 17 on the one axial side. When field winding 18 is not powered, the lining 24 is pressed against a field magnetic rotary iron core part 8 with energizing force of the compression coil spring 21 to apply a brake, and when the field magnetic wiring 18 is powered, the lining 24 is put apart from the field magnetic rotary iron core part 8 with the magnetic attraction force based upon magnetic flux flowing through a magnetic circuit to remove the brake.

Description

  The present invention relates to a rotating electrical machine with a brake applied to, for example, an elevator hoisting machine.

  A conventional rotating electrical machine equipped with a non-excitation actuated electromagnetic brake is engaged with a rotating body so that rotation can be transmitted to the rotating body and movable in the axial direction. During braking, the rotating electric machine moves to one side in the axial direction and is fixed. A disk-shaped member that contacts the side member and is movable to the other side in the axial direction when the brake is released, and a driving force for moving the disk-shaped member to one side in the axial direction is not applied to the disk-shaped member when the brake is released. At the time of braking, there are provided drive means capable of applying a driving force for moving the disk-shaped member to one side in the axial direction, and regulating means for restricting the amount of movement of the disk-shaped member to the other side in the axial direction. (For example, see Patent Document 1).

  Further, the conventional rotating electric machine with brake includes a plurality of magnetic pole pieces magnetically divided in the circumferential direction integrally formed with the rotor in the magnetic field of the stator core, and the magnetic field flux is generated by the magnetic pole pieces. A brake actuator that converts a part of the shaft to the axial direction and moves in the axial direction by the magnetic attractive force of the axial field magnetic flux facing the magnetic pole piece, a brake spring disposed between the magnetic pole piece and the brake actuator, (For example, refer to Patent Document 2).

JP 2011-190918 A Japanese Utility Model Publication No. 60-69559

In the rotating electrical machine described in Patent Document 1, a driving power source for the rotating body and a driving power source for the disk-shaped member are required, which causes a problem of high cost.
Further, in the rotating electrical machine described in Patent Document 2, the brake operating body is driven by the magnetic attraction force by the axial field magnetic flux in which a part of the field magnetic flux is converted into the axial direction by the pole piece. There existed a subject that the magnetic attraction force which drives a body became small.

  The present invention has been made to solve the above-mentioned problems, and it is possible to reduce the cost by sharing the field winding power source and the brake power source, and to form it by energizing the field winding. An object of the present invention is to obtain a rotating electrical machine with a brake that can increase the magnetic attraction force for driving the brake by driving the brake with the magnetic attraction force by the magnetic flux flowing through the magnetic circuit.

  A rotating electrical machine with a brake according to the present invention includes an armature core, an armature having an armature winding wound around the armature core, a main shaft disposed at an axial center position of the armature core, and A field rotating core portion that is rotatably supported by the main shaft and is disposed to face the armature core with a predetermined gap therebetween, and is opposed to the armature core with the field rotating core portion interposed therebetween. The field fixed iron core and the conductor wire wound in a cylindrical shape are attached to the field fixed iron core and are energized to generate a magnetic flux. A field winding that forms a magnetic pole on a peripheral surface facing the armature core; and a brake mechanism that brakes / releases the rotation of the field rotating core. When the field winding is not energized, the brake mechanism generates a braking torque by the urging force of the elastic body to brake, and when the field winding is energized, the field winding The brake is released using a magnetic attractive force generated by a magnetic flux flowing through a magnetic circuit formed by energizing the wire.

  According to the present invention, since the braking by the urging force of the elastic body is released by the magnetic attraction by the magnetic flux flowing through the magnetic circuit formed by energizing the field winding, the magnetic attraction for driving the brake is reduced. Can be bigger. Furthermore, since the field winding power source and the brake power source can be shared, the cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoist according to Embodiment 1 of the present invention. It is a disassembled perspective view explaining the structure of the field rotation core part in the rotary electric machine with a brake concerning Embodiment 1 of this invention. It is a disassembled perspective view explaining the structure of the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 1 of this invention. It is a perspective view which shows the field winding mounting | wearing state of the field rotation iron core part in the rotary electric machine with a brake concerning Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoist according to Embodiment 1 of the present invention. It is a half sectional view showing a stopped state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 2 of the present invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 3 of this invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 4 of this invention. It is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 5 of the present invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 6 of this invention. It is a perspective view which shows the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 6 of this invention. It is an end elevation which shows the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 6 of this invention. It is a half cross section which shows the driving | running state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 6 of this invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 7 of this invention. It is a disassembled perspective view which shows the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 7 of this invention. It is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 7 of the present invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 8 of this invention. It is a half sectional view showing a stopped state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 9 of the present invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 10 of this invention. It is a half cross section which shows the driving | running state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 10 of this invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 11 of this invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 12 of this invention. It is a disassembled perspective view explaining the structure of the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 12 of this invention. It is a half cross section which shows the driving | running state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 12 of this invention. It is a half cross section which shows the stop state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 13 of this invention. It is a perspective view which shows the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 13 of this invention. It is an end elevation which shows the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 13 of this invention. It is a half cross section which shows the driving | running state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 13 of this invention. It is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 14 of the present invention. It is a perspective view which shows the field rotation iron core part in the rotary electric machine with a brake concerning Embodiment 14 of this invention. It is a half sectional view showing a stopped state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 14 of the present invention. It is a half sectional view showing a stopped state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 15 of the present invention. It is a perspective view which shows the field rotation iron core part in the rotary electric machine with a brake concerning Embodiment 15 of this invention. It is a half cross section which shows the driving | running state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 15 of this invention. It is a half sectional view showing a stopped state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 16 of the present invention. It is a disassembled perspective view which shows the field fixed iron core part in the rotary electric machine with a brake concerning Embodiment 16 of this invention. It is a half cross section which shows the driving | running state of the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 16 of this invention. It is a perspective view which shows the field rotation iron core part in the rotary electric machine with a brake concerning Embodiment 17 of this invention. It is a block diagram which shows schematic structure of the control apparatus in the rotary electric machine with a brake concerning Embodiment 17 of this invention. It is a figure which shows the time calendar of the energized state in the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 17 of this invention. It is a perspective view which shows the field rotation iron core part in the rotary electric machine with a brake concerning Embodiment 18 of this invention. It is a block diagram which shows schematic structure of the control apparatus in the rotary electric machine with a brake concerning Embodiment 19 of this invention. It is a figure of the 1st time calendar which shows the energization state in the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 19 of this invention. It is a figure of the 2nd time calendar which shows the energization state in the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 19 of this invention. It is a figure of the time calendar which shows the energization state in the rotary electric machine with a brake applied to the elevator hoisting machine which concerns on Embodiment 20 of this invention. It is a figure which shows the structure of the vector control system in the rotary electric machine with a brake concerning Embodiment 20 of this invention. It is a figure which shows the structure of the control apparatus of the braking system in the rotary electric machine with a brake concerning Embodiment 21 of this invention. It is a graph which shows the control content of the control apparatus of the control system in the rotary electric machine with a brake concerning Embodiment 21 of this invention. It is a flowchart which shows the control content of the control apparatus of the control system in the rotary electric machine with a brake concerning Embodiment 21 of this invention. It is a figure explaining the effect of control of the control apparatus of the control system in the rotary electric machine with a brake concerning Embodiment 21 of this invention. It is a flowchart which shows the other control content of the control apparatus of the control system in the rotary electric machine with a brake concerning Embodiment 21 of this invention.

  Hereinafter, preferred embodiments of a rotating electrical machine with a brake according to the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
1 is a half sectional view showing a stopped state of a brake-equipped rotating electrical machine applied to an elevator hoisting machine according to Embodiment 1 of the present invention, and FIG. 2 is a diagram of the brake-equipped rotating electrical machine according to Embodiment 1 of the present invention. FIG. 3 is an exploded perspective view for explaining the structure of the field rotating iron core, FIG. 3 is an exploded perspective view for explaining the structure of the field fixed iron core in the rotating electric machine with brake according to Embodiment 1 of the present invention, and FIG. FIG. 5 is a perspective view showing a field winding mounting state of a field rotating iron core in a rotating electrical machine with a brake according to Embodiment 1 of the present invention, and FIG. 5 is a brake applied to an elevator hoisting machine according to Embodiment 1 of the present invention. It is a half sectional view showing the operating state of a rotary electric machine with a motor. 1 and 5 are diagrams showing the upper half of the cross section including the axis of the main shaft.

  In FIG. 1, a rotating electrical machine 1000 with a brake is manufactured in a bottomed cylindrical shape including a cylindrical frame 2 and a bottom portion 3, and a fixing member in which a main shaft 4 projects integrally and coaxially from the axial center position of the bottom portion 3. As a housing 1, an armature 5 fixed to the frame 2 in an internally fitted state, and a field rotating core portion 8 that is rotatably supported by the main shaft 4 and disposed on the inner peripheral side of the armature 5. A field fixed iron core 15 supported by the main shaft 4 and disposed inside the field rotating iron core 8, a field winding 18 attached to the field fixed iron core 15, a brake mechanism, It has.

  The armature 5 includes an annular armature core 6 made of a magnetic material, which is arranged in a plurality in the circumferential direction so that the slots open to the inner peripheral side, and an armature winding wound around the armature core 6. Line 7. The armature 5 is attached to the housing 1 by press-fitting the armature core 6 into the frame 2.

  As shown in FIG. 2, the field rotating iron core portion 8 includes a first rotating core block 9 and a second rotating core block 10. The first rotating core block 9 is made of a magnetic material, and has a first bottom portion 9a having a center hole 9c, and extends in the axial direction from the outer peripheral edge portion of one surface of the first bottom portion 9a, and the like in the circumferential direction. First claw-shaped magnetic pole portions 9b arranged at an angular pitch. The second rotating core block 10 is made of a magnetic material, and extends in the axial direction from the outer peripheral edge portion of one surface of the second bottom portion 10a and the second bottom portion 10a, and is arranged at an equiangular pitch in the circumferential direction. The second claw-shaped magnetic pole portion 10b, the sheave 11 extending coaxially from the other surface of the second bottom portion 10a, and the center hole 10c drilled at the axial center of the second bottom portion 10a and the sheave 11 And. The inner peripheral surfaces on the front end side of the first and second claw-shaped magnetic pole portions 9b and 10b are formed as inclined surfaces whose inner diameters gradually increase toward the front end side.

  Then, the first rotating core block 9 is attached to the main shaft 4 through the bearing 12 mounted in the center hole 9c with the first bottom portion 9a facing the bottom portion 3 and the movement in the axial direction is restricted. It has been. The second rotating core block 10 has the second claw-shaped magnetic pole portion 10b meshed with the first claw-shaped magnetic pole portion 9b, is rotatable about the main shaft 4 via the bearing 12 mounted in the center hole 10c, and is axially The movement is restricted and attached. Accordingly, the first and second claw-shaped magnetic pole portions 9b and 10b are alternately arranged in the circumferential direction at an equiangular pitch. Although not shown, between the adjacent first and second claw-shaped magnetic pole portions 9b and 10b or between the first and second claw-shaped magnetic pole portions 9b and 10b and the second and first bottom portions 10a and 9a. Are connected by a connecting member made of a nonmagnetic material such as aluminum, and the first and second rotating core blocks 9 and 10 are integrated.

  The field rotating core portion 8 is disposed on the inner peripheral side of the armature 5 while ensuring a predetermined gap between the armature core 6 and the first and second claw-shaped magnetic pole portions 9b, 10b. .

  As shown in FIG. 3, the field fixed iron core portion 15 includes a first fixed core block 16 and a second fixed core block 17.

  The first fixed core block 16 is made of a magnetic material, and a small-diameter first body portion 16a and a large-diameter first end ring 16b are coaxially connected, and a center hole 16c is drilled at an axial center position. Yes. Each of the guide pins 19 protrudes in the axial direction from the end surface of the first body portion 16a, and three guide pins 19 are arranged at an equiangular pitch on the same circumference. Furthermore, three spring accommodating recesses 20 are respectively provided in the end surface of the first body portion 16a and arranged at an equiangular pitch on the same circumference, and the compression coil spring 21 as an elastic body has an end portion. It is accommodated and disposed in each of the spring accommodating recesses 20. The first fixed core block 16 is attached to the main shaft 4 with the first end ring 16b facing the first bottom portion 9a and the main shaft 4 inserted and fixed in the center hole 16c.

  The second fixed core block 17 is made of a magnetic material, and a second body portion 17a having the same diameter as the first body portion 16a and a second end ring 17b having the same diameter as the first end ring 16b are coaxially connected. The center hole 17c is formed at the axial center position. Then, three guide holes 22 are provided in the end surface of the second body portion 17a so that the guide pins 19 can be inserted with the hole direction as an axial direction, and three guide holes 22 are arranged at an equiangular pitch on the same circumference. . Furthermore, an annular lining storage recess 23 is concentrically recessed on the end surface of the second end ring 17b opposite to the second body portion 17a, and an annular lining 24 is disposed in the lining storage recess 23. ing. The second fixed core block 17 is attached to the main shaft 4 with the second body portion 17a facing the first body portion 16a and the main shaft 4 inserted into the center hole 17c in a loosely fitted state. At this time, the guide pin 19 is inserted into the guide hole 22, and the second fixed core block 17 can be coaxial with the first fixed core block 16 and can only move in the axial direction.

  The bobbin 25 includes a cylindrical winding drum portion 25a and a pair of disk-shaped flange portions 25b extending radially outward from both axial ends of the winding drum portion 25a, as shown in FIG. In addition, the winding body portion 25a is mounted on the first and second body portions 16a and 17a in an externally fitted state. Then, the conductor windings are wound around the winding body portion 25a in a multi-layered manner to produce the field winding 18. As shown in FIG. 1, the bobbin 25 is locked to the first end ring 16 b and the movement in the axial direction is restricted so that the outer diameter of the first end ring 16 b is not exceeded. Is attached. The second fixed core block 17 is movable in the axial direction with respect to the bobbin 25.

  The operation of the rotating electrical machine with a brake 1000 configured as described above will be described.

  In the rotating electrical machine 1000 with a brake, the urging force of the compression coil spring 21 presses the second fixed core block 17 in the axial direction so as to separate from the first fixed core block 16. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second fixed core block 17 moves to the right in FIG. 1 and the lining 24 is rotated second by the urging force of the compression coil spring 21. The core block 10 is in contact with the second bottom 10a. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 24 and the second bottom portion 10a, and this frictional force becomes a brake torque, thereby preventing the sheave 11 from rotating. Thus, the 2nd fixed core block 17 fulfill | performs the function of a brake armature. The second fixed core block 17, the compression coil spring 21, and the lining 24 constitute a brake mechanism unit.

  In this stop state, the gap ga is formed between the second end ring 17b and the second bottom portion 10a, and the gap gb is formed between the first body portion 16a and the second body portion 17a.

  Next, when the field winding 18 is energized, a magnetic flux is generated. With this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Therefore, the main magnetic flux A flows from the first body portion 16a to the first end ring 16b and flows from the first end ring 16b to the first bottom portion 9a of the first rotating core block 9 as indicated by arrows in FIG. The second claw-like shape of the second rotary core block 10 flows from the first bottom portion 9a to the first claw-shaped magnetic pole portion 9b, flows from the first claw-shaped magnetic pole portion 9b to the armature core 6, and flows through the armature core 6. It flows into the magnetic pole portion 10b, flows from the second claw-shaped magnetic pole portion 10b to the second bottom portion 10a, flows from the second bottom portion 10a into the second end ring 17b of the second fixed core block 17, and from the second end ring 17b to the second body. A magnetic circuit is formed which flows to the part 17a and returns to the first body part 16a.

At this time, a magnetic attractive force is generated between the first body portion 16 a and the second body portion 17 a, and the second fixed core block 17 resists the biasing force of the compression coil spring 21, and the first fixed core block 16. Move to the side. Thereby, as shown in FIG. 5, the lining 24 is separated from the second bottom 10a of the second rotating core block 10, and the braking is released.
Simultaneously with energization of the field winding 18, an alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 8 is rotationally driven.

  Here, in order for the second fixed core block 17 to function as a brake armature, the gap ga and the gap gb in the stopped state are configured such that the gap ga> the gap gb.

  Next, the contact position between the lining 24 and the second bottom portion 10a will be described. In FIG. 1, the distance a is the distance between the contact position between the lining 24 and the second bottom portion 10a and the axis of the main shaft 4, and the distance b is the contact position between the lining 24 and the second bottom portion 10a. And the distance between the second bottom portion 10a of the second rotating core block 10 and the radial half position of the thickness of the sheave 11. The minimum value of the distance a is determined from the necessary brake torque and the frictional force between the lining 24 and the second bottom portion 10a. Then, the maximum value of the distance b is set so that the stress caused by the moment determined by the distance b and the urging force of the compression coil spring 21 is within a range where there is no problem in the material strength of the second rotating core block 10. The For this reason, the contact position between the lining 24 and the second bottom portion 10a is set so that the distance a is not less than the above minimum value and the distance b is not more than the above maximum value.

According to the first embodiment, the magnetic field generated by energization of the field winding 18 is used to brake / release the field rotating core 8, that is, the sheave 11. The power supply for the line and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 17 is moved by the magnetic attractive force generated by the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force that moves the second fixed core block 17 is increased. It becomes large and can release braking reliably.

Since the second fixed core block 17 that functions as a brake armature is not included in the field rotating core portion 8, the inertia can be reduced.
Since the compression coil spring 21 is disposed in the field fixed iron core portion 15, the compression coil spring 21 does not rotate, and the generation of noise is suppressed.

In the first embodiment, the coaxiality of the first and second fixed core blocks is ensured by three pairs of guide pins and guide holes. However, the number of pairs of guide pins and guide holes is limited to three pairs. However, what is necessary is just two or more pairs.
In the first embodiment, the second fixed core block is restricted from moving in the rotational direction by fitting the guide pin and the guide hole so that the axial movement is possible. The axis of the second fixed core block is a slotted hole with the center direction of the second fixed core block as the slotted hole with the groove direction of the axial direction, and the two fixed core blocks are restricted by spline fitting. However, axial movement may be possible.

In the first embodiment, three compression coil springs are used. However, the number of compression coil springs is not limited to three, and a pressing force that generates a predetermined brake torque is generated. It is sufficient if it is more than the number required for.
In the first embodiment, the compression coil spring is used as the elastic body. However, the elastic body is not limited to the compression coil spring, and for example, a leaf spring, rubber, or the like can be used.
In the first embodiment, the first rotating core block and the second rotating core block are connected and integrated using a connecting member made of a non-magnetic material. The first rotating core block and the second rotating core block may be connected and integrated using a magnet magnetized in a direction opposite to the direction.

  Moreover, although the material of the main shaft to which the first fixed core block and the second fixed core block are attached is not described in the first embodiment, it is desirable to manufacture the nonmagnetic material. That is, by producing the main shaft from a non-magnetic material, it is possible to suppress leakage of magnetic flux generated by energization of the field winding from the first fixed core block and the second fixed core block to the main shaft. As a result, it is possible to reduce the time for the second fixed core block to be attracted to the first fixed core block and moved by energization of the field winding.

Embodiment 2. FIG.
FIG. 6 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 2 of the present invention.

In FIG. 6, the lining 24a has a substantially trapezoidal cross section including its axis.
The rotating electrical machine with brake 1000A according to the second embodiment is configured in the same manner as in the first embodiment except that a lining 24a having a substantially trapezoidal cross section is used instead of the lining 24 having a rectangular cross section.

  In the rotating electrical machine with brake 1000A configured as described above, the lining 24a is disposed on the first fixed core block 16 with the upper side (short side) of the substantially trapezoidal section facing the second bottom portion 10a. Even if wear progresses and the second fixed core block 17 moves to the right in the axial direction in FIG. 6 and the urging force of the compression coil spring 21 decreases, the contact area between the second bottom portion 10a and the lining 24a increases. Therefore, it is possible to suppress a decrease in brake torque due to wear of the lining 24a.

Embodiment 3 FIG.
FIG. 7 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 3 of the present invention.

In FIG. 7, the sheave 11 is fixed to the other surface of the second bottom portion 10a with a ring-shaped intermediate member 13 made of a nonmagnetic material interposed therebetween.
The rotating electrical machine with brake 1000B according to the third embodiment is configured in the same manner as in the first embodiment, except that the second bottom portion 10a is not magnetically coupled to the sheave 11.

  In the rotating electrical machine with brake 1000B configured as described above, since the nonmagnetic intermediate member 13 is disposed between the second bottom portion 10a and the sheave 11, the flow of magnetic flux to the sheave 11 is suppressed. . Thereby, leakage magnetic flux is reduced and the torque of the rotating electrical machine can be improved. Furthermore, the occurrence of damage to the rope due to the rope that suspends the elevator car wound around the sheave 11 being attracted to the sheave 11 is suppressed.

Embodiment 4 FIG.
FIG. 8 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 4 of the present invention.

  In FIG. 8, the first rotating core block 9 is rotatable to the main shaft 4 via the two bearings 12 attached to the center hole 9 c with the first bottom portion 9 a directed toward the bottom portion 3, and moves in the axial direction. Regulated and installed. The second rotating core block 10 can rotate to the main shaft 4 via one bearing 12 mounted in the center hole 10c by engaging the second claw-shaped magnetic pole portion 10b with the first claw-shaped magnetic pole portion 9b, and Axial movement is restricted and attached.

The first fixed core block 16 is attached to the main shaft 4 with the first end ring 16b facing the second bottom portion 10a and the main shaft 4 inserted and fixed in the center hole 16c. The second fixed core block 17 is attached to the main shaft 4 so as to be movable in the axial direction, with the second body portion 17a facing the first body portion 16a and the main shaft 4 inserted into the center hole 17c in a loosely fitted state. Yes. And the lining 24 is arrange | positioned at the lining accommodation recessed part 23 recessedly provided by the end surface on the opposite side to the 2nd trunk | drum 17a of the 2nd end ring 17b.
Other configurations are the same as those in the first embodiment.

  In the rotating electrical machine with brake 1000 </ b> C configured as described above, when the field winding 18 is not energized, the lining 24 comes into contact with the first bottom portion 9 a by the urging force of the compression coil spring 21, and is in a stopped state. Yes. Further, when the field winding 18 is energized, a magnetic attractive force is generated between the first body portion 16a and the second body portion 17a, and the second fixed core block 17 is biased by the compression coil spring 21. Against the first fixed core block 16 side. As a result, the lining 24 is separated from the first bottom portion 9a of the first rotating core block 9, and braking is released.

  Also in the fourth embodiment, the axial urging force of the compression coil spring 21 acting on the first bottom portion 9a via the lining 24 is received by the two bearings 12 disposed on the first bottom portion 9a. As in the first embodiment, the durability is improved.

Embodiment 5 FIG.
FIG. 9 is a half sectional view showing an operating state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 5 of the present invention.

In FIG. 9, the first labyrinth groove 26 has a rectangular cross-sectional groove shape, and is concentrically recessed on the surface of the second bottom 10a of the second rotating core block 10 facing the second end ring 17b. ing. The first labyrinth 27 protrudes concentrically on the end surface of the second end ring 17 b of the second fixed core block 17 on the side opposite to the second body portion 17 a. The first labyrinth 27 is formed in a cylindrical shape whose outer diameter is smaller than the maximum diameter of the first labyrinth groove 26 and whose inner diameter is larger than the minimum diameter of the first labyrinth groove 26, and the lining 24 has the second bottom portion 10 a. Even when they are in contact with each other, the first labyrinth groove 26 is set in a dimensional relationship that does not contact in the axial direction and the radial direction.
The other configuration of the fifth embodiment is the same as that of the first embodiment.

  In the rotating electrical machine with brake 1000D configured as described above, when the field winding 18 is not energized, the lining 24 comes into contact with the second bottom portion 10a by the urging force of the compression coil spring 21 and is in a stopped state. Yes. And the 1st labyrinth 27 is inserted in the 1st labyrinth groove | channel 26 in the state which does not contact in an axial direction and radial direction. Therefore, even if the abrasion powder due to the friction between the lining 24 and the second bottom portion 10a is scattered by the centrifugal force generated when the field rotating core portion 8 rotates, the gap between the first labyrinth 27 and the first labyrinth groove 26 is reduced. Can stay in the gap. Thereby, it is prevented that abrasion powder is wound in the armature winding 7 and the field winding 18, and the occurrence of a short circuit is suppressed.

  Here, in order not to reduce the magnetic attractive force due to the energization of the field winding 18, the axial gap ga1 between the first labyrinth 27 and the second bottom 10a is set to the second end ring 17b and the second bottom 10a. It is desirable to make it larger than the gap ga. In order to increase the effect of the labyrinth described above, it is desirable that the radial gap gc1 and the gap gc2 between the first labyrinth 27 and the first labyrinth groove 26 be smaller than the gap ga.

  Further, in the event of an emergency, for example, when the power is lost during a power failure, the second fixed core block 17 moves to the right side in FIG. 9 and the lining 24 is moved by the urging force of the compression coil spring 21. It contacts the second bottom 10a. A frictional force is generated between the lining 24 and the second bottom portion 10a, and this frictional force becomes a brake torque, and the sheave 11 is prevented from rotating. Thus, during the armature release time, the armature winding 7 cannot be energized until the braking of the brake mechanism unit is performed, so that the sheave 11 cannot be prevented from rotating, but after the braking of the brake mechanism unit is activated. Can prevent the sheave 11 from rotating and can reliably stop the emergency.

Embodiment 6 FIG.
FIG. 10 is a half cross-sectional view showing a stopped state of a rotating electrical machine with brake applied to an elevator hoisting machine according to Embodiment 6 of the present invention, and FIG. 11 is a schematic diagram of the rotating electrical machine with brake according to Embodiment 6 of the present invention. FIG. 12 is an end view showing a field fixed iron core in a rotary electric machine with brake according to Embodiment 6 of the present invention, and FIG. 13 is an elevator according to Embodiment 6 of the present invention. It is a semi-sectional view which shows the driving | running state of the rotary electric machine with a brake applied to a hoisting machine.

  In FIG. 10 thru | or FIG. 13, the field rotation iron core part 8A is comprised from 9 A of 1st rotation core blocks, and 10 A of 2nd rotation core blocks. The first rotating core block 9A includes a cylindrical portion 9d that protrudes in the axial direction from the outer peripheral edge of one surface of the first bottom portion 9a, and the first claw-shaped magnetic pole portion 9b extends from the cylindrical portion 9d in the axial direction. ing. The second rotating core block 10A includes a cylindrical portion 10d that protrudes in the axial direction from the outer peripheral edge of one surface of the second bottom portion 10a, and the second claw-shaped magnetic pole portion 10b extends from the cylindrical portion 10d in the axial direction. ing.

  The field fixed iron core 30 is composed of a first fixed core block 31 and a second fixed core block 32.

  The first fixed core block 31 is made of a magnetic material, and has a large-diameter first end ring 31b and a square support section 31c having a predetermined axial length on both sides in the axial direction of the small-diameter body 31a. The center hole 31d is drilled at the axial center position. The support portion 31c is formed as a quadrangular prism having a square cross section perpendicular to the axis, and two guide pins 33 are erected on the two opposite side surfaces of the support portion 31c at right angles to the side surfaces.

  The second fixed core block 32 is made of a magnetic material, has the same outer diameter as that of the first end ring 31b, and has a square hole that is larger than the support portion 31c and has a predetermined thickness. It is comprised from a pair of 2nd end ring 32a comprised by dividing a ring body into 2 equal parts in the circumferential direction. A guide hole 34 is recessed in the bottom surface of the recess having a rectangular cross section of the second end ring 32a so that the guide pin 33 can be inserted. On the outer peripheral surface of the second end ring 32a, a semi-circular lining storage recess 36 is provided, and a lining 37 is stored and disposed in the lining storage recess 36.

The second end ring 32 a is attached to the support portion 31 c while the guide pin 33 is inserted into the guide hole 34. The compression coil spring 35 is interposed between the side surface of the support portion 31c and the bottom surface of the concave portion having a rectangular cross section of the second end ring 32a. The end portion of the compression coil spring 35 is housed and disposed in a spring housing recess (not shown) formed on the side surface of the support portion 31c or the bottom surface of the recess having a rectangular cross section of the second end ring 32a. Has been.
The sixth embodiment is the same as the above-described embodiment except that the field rotating core portion 8A and the field fixed core portion 30 are used instead of the field rotating core portion 8 and the field fixed core portion 15. The configuration is the same as in the first mode.

In the rotating electrical machine with brake 1001 configured in this way, the first rotating core block 9A is attached to the main shaft 4 via the bearing 12 mounted in the center hole 9c, and the movement in the axial direction is restricted. The second rotary core block 10A is attached to the main shaft 4 via a bearing 12 mounted in the center hole 10c so as to be rotatable and restricted in axial movement.
The first fixed core block 31 is attached to the main shaft 4 by inserting and fixing the main shaft 4 into the center hole 31d. Further, the bobbin 38 is attached to the body portion 31a of the first fixed core block 31, and the bolt 39 is fastened to the first end ring 31b. A field winding 18 is wound around the bobbin 38.

  In the rotating electrical machine with brake 1001, the urging force of the compression coil spring 35 presses the second end ring 32a so as to move outward in the radial direction. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second end ring 32 a moves upward in FIG. 10, and the lining 37 is moved by the urging force of the compression coil spring 35. It is in contact with the inner peripheral wall surface of the cylindrical portion 10d of the block 10A. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 37 and the cylindrical portion 10d. This frictional force becomes a brake torque, and the sheave 11 is prevented from rotating. Thus, the second fixed core block 32 functions as a brake armature. The second fixed core block 32, the compression coil spring 35, and the lining 37 constitute a brake mechanism unit.

  In this stop state, the gap gb is formed between the second end ring 32a and the support portion 31c, and the gap gc is formed between the second end ring 32a and the cylindrical portion 10d.

  Next, when the field winding 18 is energized, a magnetic flux is generated. With this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8A. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Therefore, as indicated by an arrow in FIG. 13, the main magnetic flux A flows from the body portion 31a to the first end ring 31b, flows from the first end ring 31b to the cylindrical portion 9d of the first rotating core block 9A, and the cylindrical portion. 9d flows to the first claw-shaped magnetic pole portion 9b, flows from the first claw-shaped magnetic pole portion 9b to the armature core 6 and flows through the armature core 6 to the second claw-shaped magnetic pole portion 10b of the second rotating core block 10A. Flows into the cylindrical portion 10d from the second claw-shaped magnetic pole portion 10b, flows into the second end ring 32a from the cylindrical portion 10d, flows into the support portion 31c from the second end ring 32a, and flows into the body portion 31a through the support portion 31c. Returning, a magnetic circuit is formed.

At this time, a magnetic attractive force is generated between the support portion 31c and the second end ring 32a, and the second fixed core block 31 moves toward the support portion 31c against the urging force of the compression coil spring 35. Thereby, as shown in FIG. 13, the lining 37 is separated from the cylindrical portion 10d of the second rotating core block 10A, and braking is released.
Simultaneously with energization of the field winding 18, alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 8 </ b> A is rotationally driven.

  Here, in order for the second fixed core block 32 to function as a brake armature, the gap gb and the gap gc in the stopped state are configured such that the gap gc> the gap gb. Further, in the operating state of the rotating electrical machine with brake 1001, the gap between the first end ring 31b and the cylindrical portion 9d is equal to the gap between the second end ring 32a and the cylindrical portion 10d.

Also in the sixth embodiment, the field rotating iron core 8A, that is, the sheave 11 is braked / released using the magnetic flux generated by energizing the field winding 18, so that the field winding The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 32 is moved by the magnetic attractive force by the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force for moving the second fixed core block 32 is increased. It becomes large and can release braking reliably.

Since the second fixed core block 32 functioning as a brake armature is not included in the field rotating core portion 8A, the inertia can be reduced.
Since the compression coil spring 35 is disposed in the field fixed iron core 30, the compression coil spring 35 does not rotate, and the generation of noise is suppressed.

  According to the sixth embodiment, the urging force of the compression coil spring 35 acts so as to press the cylindrical portion 10d of the second rotating core block 10A radially outward via the second end ring 32a and the lining 37. Therefore, the life of the bearing 12 is improved.

  In the sixth embodiment, the second end ring is supported by two pairs of guide pins and guide holes so as to be movable in the radial direction. However, the number of pairs of guide pins and guide holes is not limited to two pairs. Three or more pairs may be used.

  In the sixth embodiment, two compression coil springs are used. However, the number of compression coil springs is not limited to two, and a pressing force that generates a predetermined brake torque is generated. It is sufficient if it is more than the number required for.

Embodiment 7 FIG.
FIG. 14 is a half cross-sectional view showing a stopped state of a rotating electric machine with brake applied to an elevator hoisting machine according to Embodiment 7 of the present invention, and FIG. 15 is a diagram of the rotating electric machine with brake according to Embodiment 7 of the present invention. FIG. 16 is an exploded perspective view showing a field fixed iron core, and FIG. 16 is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoist according to Embodiment 7 of the present invention.

14 to 16, the field rotating iron core portion 8 </ b> A is attached to the main shaft 4 via the bearing 12 so as to be rotatable and restricted in movement in the axial direction. The bobbin 38 is attached to the first body portion 16a of the first fixed core block 16, and the bolt 39 is attached to the screw hole 40 formed in the first end ring 16b. The second fixed core block 17 is movable in the axial direction with respect to the bobbin 38.
The first and second fixed core blocks 16 and 17 are produced such that a gap gc is formed between the first and second end rings 16b and 17b and the cylindrical portions 9d and 10d. Further, when the rotating electrical machine with brake 1002 is stopped, a gap ga is formed between the second end ring 17b and the second bottom part 10a, and the gap gb is formed between the first body part 16a and the second body part 17a. Is formed. The gap ga is larger than the gap gb and the gap gc.
Other configurations are the same as those in the first embodiment.

  In the rotating electrical machine with brake 1002 configured in this way, the urging force of the compression coil spring 21 presses the second fixed core block 17 in the axial direction so as to be separated from the first fixed core block 16. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second fixed core block 17 moves to the right side in FIG. 14 and the lining 24 is moved by the urging force of the compression coil spring 21 to the second rotating core. It is in contact with the second bottom 10a of the block 10A. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 24 and the second bottom portion 10a, and this frictional force becomes a brake torque, thereby preventing the sheave 11 from rotating. Thus, the 2nd fixed core block 17 fulfill | performs the function of a brake armature. The second fixed core block 17, the compression coil spring 21, and the lining 24 constitute a brake mechanism unit.

  Next, when the field winding 18 is energized, a magnetic flux is generated. With this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8A. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Further, the gap ga is larger than the gaps gb and gc. Therefore, as indicated by an arrow in FIG. 16, the main magnetic flux A flows from the first body portion 16a to the first end ring 16b, from the first end ring 16b to the cylindrical portion 9d of the first rotating core block 9A, It flows from the cylindrical portion 9d to the first claw-shaped magnetic pole portion 9b, flows from the first claw-shaped magnetic pole portion 9b to the armature core 6, flows through the armature core 6, and the second claw-shaped magnetic pole portion of the second rotating core block 10A. 10b, flows from the second claw-shaped magnetic pole portion 10b to the cylindrical portion 10d, flows from the cylindrical portion 10d to the second end ring 17b, flows from the second end ring 17b to the second body portion 17a, and connects the second body portion 17a to the second body portion 17a. A magnetic circuit is formed that flows and returns to the first body portion 16a.

At this time, a magnetic attractive force is generated between the first fixed core block 16 and the second fixed core block 17, and the second fixed core block 17 resists the urging force of the compression coil spring 21. Move to block 16 side. Thereby, as shown in FIG. 16, the lining 24 is separated from the second bottom 10a of the second rotating core block 10A, and the braking is released.
Simultaneously with energization of the field winding 18, alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 8 </ b> A is rotationally driven.

Also in the seventh embodiment, the field rotating core 8A, that is, the sheave 11 is braked / released using the magnetic flux generated by energizing the field winding 18, so that the field winding The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 17 is moved by the magnetic attractive force generated by the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force that moves the second fixed core block 17 is increased. It becomes large and can release braking reliably.

Since the second fixed core block 17 functioning as a brake armature is not included in the field rotating core portion 8A, the inertia can be reduced.
Since the compression coil spring 21 is disposed in the field fixed iron core portion 15, the compression coil spring 21 does not rotate, and the generation of noise is suppressed.

  According to the seventh embodiment, even if the gap ga changes due to brake maintenance, the gap gc between the first and second end rings 16b, 17b and the cylindrical portions 9d, 10d is kept constant. As a result, the motor performance is stabilized.

  Further, since the gap ga is larger than the gap gc, most of the magnetic flux generated by energizing the field winding 18 flows from the cylindrical portion 10d into the second end ring 17b and from the second bottom portion 10a to the second end. The amount of magnetic flux flowing into the ring 17b is extremely small. Therefore, the magnetic attractive force generated between the first fixed core block 16 and the second fixed core block 17 is offset by the magnetic attractive force generated between the second fixed core block 17 and the second bottom portion 10a. Without acting, the second fixed core block 17 is moved to the first fixed core block 16 side. The magnetic attractive force generated when the magnetic flux flows through the gap gc is a radial attractive force, and the axial magnetic attractive force generated between the first fixed core block 16 and the second fixed core block 17. Has no effect. Therefore, the magnetic attractive force that moves the second fixed core block 17 toward the first fixed core block 16 is increased, and braking can be reliably released.

Embodiment 8 FIG.
FIG. 17 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 8 of the present invention.

In FIG. 17, a partition wall 41 made of a nonmagnetic material such as aluminum is fixed to the end face of the second end ring 17b of the second fixed core block 17 facing the second bottom portion 10a of the second rotating core block 10A.
Other configurations are the same as those in the seventh embodiment.

In the rotating electrical machine with brake 1003 configured as described above, the partition wall 41 made of a nonmagnetic material is fixed to the end surface of the second end ring 17b, and a gap ga is formed between the second bottom portion 10a and the second end ring 17b. The same magnetic resistance as that of the case is ensured.
Therefore, also in the eighth embodiment, when the field winding 18 is not energized, that is, in the stopped state, the lining 24 contacts the second bottom 10a of the second rotating core block 10A by the urging force of the compression coil spring 21. The sheave 11 is prevented from rotating.

  When the field winding 18 is energized, the main magnetic flux A flows in the same manner as in the seventh embodiment, and the second fixed core block 17 is first fixed against the urging force of the compression coil spring 21. Move to the core block 16 side. As a result, the lining 24 is separated from the second bottom 10a of the second rotating core block 10A, and braking is released.

Therefore, this eighth embodiment also has the same effect as the seventh embodiment.
According to the eighth embodiment, since the nonmagnetic partition wall 41 is disposed on the end surface of the second end ring 17b facing the second bottom portion 10a, the space between the second bottom portion 10a and the second end ring 17b is disposed. Even if the gap is narrowed, it is possible to secure the same magnetic resistance as when the gap ga is secured between the second bottom portion 10a and the second end ring 17b. Therefore, the gap between the second bottom portion 10a and the second end ring 17b can be narrowed, and the axial length of the rotating electrical machine 1003 with brake can be shortened.

Embodiment 9 FIG.
FIG. 18 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 9 of the present invention.

In FIG. 18, the second labyrinth groove 42 has a rectangular cross-sectional groove shape, and is concentrically recessed on the surface of the second bottom 10a of the second rotating core block 10A facing the second end ring 17b. ing. The second labyrinth 43 protrudes axially and concentrically from the outer peripheral edge of the partition wall 41 disposed on the end surface opposite to the second body portion 17a of the second end ring 17b of the second fixed core block 17. Has been. The second labyrinth 43 is formed in a cylindrical shape having an outer diameter smaller than the maximum diameter of the second labyrinth groove 42 and an inner diameter larger than the minimum diameter of the second labyrinth groove 42, and the lining 24 has the second bottom portion 10 a. Even when they are in contact with each other, the second labyrinth groove 42 is set in a dimensional relationship that does not contact in the axial direction and the radial direction.
Other configurations of the ninth embodiment are configured in the same manner as in the eighth embodiment.

  In the rotating electrical machine with brake 1003A configured as described above, when the field winding 18 is not energized, the lining 24 comes into contact with the second bottom portion 10a by the urging force of the compression coil spring 21 and is in a stopped state. Yes. And the 2nd labyrinth 43 is inserted in the 2nd labyrinth groove | channel 42 in the state which does not contact in an axial direction and radial direction. Therefore, even if the abrasion powder due to the friction between the lining 24 and the second bottom portion 10a is scattered due to the centrifugal force generated when the field rotating core portion 8A rotates, it is between the second labyrinth 43 and the second labyrinth groove 42. Can stay in the gap. Thereby, it is prevented that abrasion powder is wound in the armature winding 7 and the field winding 18, and the occurrence of a short circuit is suppressed.

  Furthermore, since the second labyrinth 43 is made of a nonmagnetic material, the gap ga1 between the second labyrinth 43 and the second labyrinth groove 42 is set to the gap ga between the second fixed core block 17 and the second bottom portion 10a. Even if it is set as follows, the above-described labyrinth effect can be exhibited without reducing the magnetic attractive force generated by energizing the field winding 18.

  In order to increase the above-described labyrinth effect, it is desirable that the radial gap gc1 and the gap gc2 between the second labyrinth 43 and the second labyrinth groove 42 be smaller than the gap ga.

Embodiment 10 FIG.
FIG. 19 is a half sectional view showing a stopped state of a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 10 of the present invention, and FIG. 20 is an elevator hoisting machine according to Embodiment 10 of the present invention. It is a half sectional view showing the operating state of the rotary electric machine with a brake applied.

19 and 20, the first fixed core block 31 is attached to the main shaft 4 by inserting the main shaft 4 into the center hole 31 d and fixing it. Further, the bobbin 25 is attached to the body portion 31a of the first fixed core block 31, is locked to the first end ring 31b, is restricted from moving in the axial direction, and does not exceed the outer diameter of the first end ring 31b. Thus, the first fixed core block 31 is attached. A field winding 18 is wound around the bobbin 25.
The second end ring 32a is attached to the support portion 31c while the guide pin 33 is inserted into the guide hole 34 (not shown). Although not shown, the compression coil spring 35 is interposed between the side surface of the support portion 31c and the bottom surface of the concave portion having a rectangular cross section of the second end ring 32a.

The gap ga is between the end surface of the first end ring 31b and the first bottom portion 9a of the first rotating core block 9A, and between the end surface of the second end ring 32a and the second bottom portion 10a of the second rotating core block 10A. Is formed between. In the stopped state, the gap gb is formed between the second end ring 32a and the support portion 31c, and the gap gc is formed between the second end ring 32a and the cylindrical portion 10d. The gap gc is larger than the gap ga and the gap gb.
Other configurations are the same as those in the sixth embodiment.

  In the rotating electrical machine with brake 1004 configured in this way, the urging force of the compression coil spring 35 presses the second end ring 32a so as to move radially outward. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second end ring 32 a moves upward in FIG. 19 and the lining 37 is moved by the urging force of the compression coil spring 35. Abutting on the inner peripheral wall surface of the cylindrical portion 10d of the block 10A, the sheave 11 is prevented from rotating.

  Next, when the field winding 18 is energized, a magnetic flux is generated. With this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8A. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Further, the gap ga is formed smaller than the gap gc. Therefore, as indicated by arrows in FIG. 20, the main magnetic flux A flows from the body portion 31a to the first end ring 31b, from the first end ring 31b to the first bottom portion 9a of the first rotating core block 9A, 1 Flows from the bottom portion 9a through the cylindrical portion 9d to the first claw-shaped magnetic pole portion 9b, flows from the first claw-shaped magnetic pole portion 9b to the armature core 6, flows through the armature core 6 and the second rotary core block 10A. It flows into the two-claw-shaped magnetic pole part 10b, flows from the second claw-shaped magnetic pole part 10b through the cylindrical part 10d to the second bottom part 10a, flows into the second end ring 32a from the second bottom part 10a, and supports from the second end ring 32a. A magnetic circuit is formed which flows into 31c, flows through the support portion 31c, and returns to the body portion 31a.

At this time, a magnetic attractive force is generated between the support portion 31c and the second end ring 32a, and the second fixed core block 31 moves toward the support portion 31c against the urging force of the compression coil spring 35. As a result, as shown in FIG. 20, the lining 37 is separated from the cylindrical portion 10d of the second rotating core block 10A, and the braking is released.
Simultaneously with energization of the field winding 18, alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 8 </ b> A is rotationally driven.

Therefore, the tenth embodiment also has the same effect as the sixth embodiment.
According to the tenth embodiment, the main magnetic flux A flows from the second bottom portion 10a to the second end ring 32a, and the amount of magnetic flux flowing from the cylindrical portion 10d to the second end ring 32a is extremely reduced. Therefore, the magnetic attraction force generated between the support portion 31c and the second end ring 32a is not offset by the magnetic attraction force generated between the second end ring 32a and the cylindrical portion 10d. It acts to move the ring 32a toward the support portion 31c. The magnetic attractive force generated when the magnetic flux flows from the second bottom portion 10a to the second end ring 32a is an axial attractive force, and is generated in the radial direction between the support portion 31c and the second end ring 32a. Does not affect the magnetic attraction force. Therefore, the magnetic attraction force that moves the second end ring 32a toward the support portion 31c increases, and braking can be reliably released.

Embodiment 11 FIG.
FIG. 21 is a half sectional view showing a stopped state of the rotating electric machine with brake applied to the elevator hoist according to the eleventh embodiment of the present invention.

In FIG. 21, the partition wall 41 is fixed to the outer peripheral surface of the second end ring 32a facing the cylindrical portion 10d of the second rotating core block 10A.
Other configurations are the same as those in the tenth embodiment.

In the rotating electrical machine with brake 1005 configured as described above, the partition wall 41 made of a nonmagnetic material is fixed to the outer peripheral surface of the second end ring 32a, and a gap gc is formed between the cylindrical portion 10d and the second end ring 32a. The same magnetic resistance as that of the case is ensured.
Therefore, also in the eleventh embodiment, in a state where the field winding 18 is not energized, that is, in a stopped state, the lining 37 contacts the cylindrical portion 10d of the second rotating core block 10A by the urging force of the compression coil spring 35. The rotation of the sheave 11 is prevented.

  When the field winding 18 is energized, the main magnetic flux A flows in the same manner as in the tenth embodiment, and the second end ring 32a resists the urging force of the compression coil spring 35 and is on the support portion 31c side. Move to. As a result, the lining 37 is separated from the cylindrical portion 10d of the second rotating core block 10A, and braking is released.

Therefore, this eleventh embodiment also has the same effect as the tenth embodiment.
According to the eleventh embodiment, since the nonmagnetic partition wall 41 is disposed on the outer peripheral surface of the second end ring 32a facing the cylindrical portion 10d, the space between the cylindrical portion 10d and the second end ring 32a is disposed. Even if the gap is narrowed, the same magnetic resistance as when the gap gc is secured between the cylindrical portion 10d and the second end ring 32a can be secured. Therefore, the gap between the cylindrical portion 10d and the second end ring 32a can be narrowed, and the radial length of the rotating electrical machine 1005 with brake can be shortened.

Embodiment 12 FIG.
FIG. 22 is a half cross-sectional view showing a stopped state of the rotating electrical machine with brake applied to the elevator hoisting machine according to the twelfth embodiment of the present invention, and FIG. 23 is a sectional view of the rotating electrical machine with brake according to the twelfth embodiment of the present invention. FIG. 24 is an exploded perspective view for explaining the configuration of the field fixed iron core, and FIG. 24 is a half sectional view showing the operating state of the rotating electrical machine with brake applied to the elevator hoist according to Embodiment 12 of the present invention.

  22 to 24, a rotating electrical machine 1006 with a brake is manufactured in a bottomed cylindrical shape composed of a cylindrical frame 2 and a bottom portion 3, and a main shaft 4 is integrally and coaxially projected from the axial center position of the bottom portion 3. The housing 1, the armature 5A fixed to the main shaft 4, the field rotating core portion 8B supported rotatably on the main shaft 4 so as to cover the armature 5A, and the frame 2 are supported. A field fixed iron core 45 disposed on the outer periphery of the field rotating iron core 8B, a field winding 18 mounted on the field fixed iron core 45, and a brake mechanism.

  The armature 5A includes an annular armature core 6A made of a magnetic material and arranged in a plurality of circumferential directions so that slots are opened on the outer peripheral side, and an armature winding wound around the armature core 6A. 7A. The armature 5A is attached to the main shaft 4 by inserting and fixing the main shaft 4 into the central hole of the armature core 6A.

  The field rotating iron core 8B is composed of a first rotating core block 9A and a second rotating core block 10B. The second rotating core block 10B includes a disk-shaped flange portion 10e that protrudes radially outward from the outer peripheral edge portion of the second bottom portion 10a. The field rotating core portion 8B is attached to the main shaft 4 via the bearing 12 so as to be rotatable and restricted in movement in the axial direction. The field rotating iron core portion 8B is disposed so as to surround the armature 5A while ensuring a predetermined gap between the armature core 6A and the first and second claw-shaped magnetic pole portions 9b and 10b. ing.

  The field fixed iron core portion 45 includes a first fixed core block 46 and a second fixed core block 47.

  The first fixed core block 46 is made of a magnetic material, and a first body portion 46a having a large inner diameter and a first end ring 46b having a small inner diameter are connected coaxially. Each of the guide pins 49 protrudes in the axial direction from the end surface of the first body portion 46a, and is provided with three equiangular pitches on the same circumference. Further, three spring accommodating recesses 50 are respectively provided in the end surface of the first body portion 46a and arranged at an equiangular pitch on the same circumference, and the compression coil spring 51 as an elastic body has an end portion. It is accommodated and disposed in each of the spring accommodating recesses 50. The first fixed core block 46 is attached to the housing 1 with the first end ring 46 b facing the bottom 3 and press-fitted and fixed to the frame 2.

  The second fixed core block 47 is made of a magnetic material, and the second body part 47a having the same inner diameter as the first body part 46a and the second end ring 47b having the same inner diameter as the first end ring 46b are connected coaxially. It is installed. The guide holes 52 are recessed in the end surface of the second body portion 47a so that the guide pins 49 can be inserted with the hole direction as the axial direction, and three guide holes 52 are arranged at the same angular pitch on the same circumference. . Further, an annular lining storage recess 53 is concentrically recessed on the end surface of the second end ring 47b opposite to the second body portion 47a, and an annular lining 54 is disposed in the lining storage recess 53. ing. The second fixed core block 47 is attached to the housing 1 by inserting the second body portion 47 a toward the first body portion 46 a in a loosely fitted state in the frame 2. At this time, the guide pin 49 is inserted into the guide hole 52, and the second fixed core block 47 can be coaxial with the first fixed core block 46 and can only move in the axial direction.

The field fixed iron core portion 45 is disposed on the outer peripheral side of the field rotating iron core portion 8B.
The bobbin 55 is attached to the first and second body portions 46a and 47a in an internally fitted state. Then, the conductor wire is wound into a multi-layered multi-row, and the field winding 18 is manufactured. The bobbin 55 is locked to the first end ring 46b, is restricted from moving in the axial direction, and is attached to the first fixed core block 46 so as not to fall below the inner diameter of the first end ring 46b. The second fixed core block 47 is movable in the axial direction with respect to the bobbin 55.

  The operation of the rotating electrical machine with brake 1006 configured as described above will be described.

  In the rotating electrical machine with brake 1006, the urging force of the compression coil spring 51 presses the second fixed core block 47 in the axial direction so as to separate from the first fixed core block 46. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second fixed core block 47 moves to the right in FIG. 22, and the lining 54 performs the second rotation by the urging force of the compression coil spring 51. It is in contact with the flange portion 10e of the core block 10B. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 54 and the flange portion 10e, and this frictional force becomes a brake torque, thereby preventing the sheave 11 from rotating. Thus, the second fixed core block 47 functions as a brake armature. The second fixed core block 47, the compression coil spring 51, and the lining 54 constitute a brake mechanism unit.

  In this stop state, the gap ga is formed between the second end ring 47 b and the flange portion 10 e, and the gap gb is formed between the first fixed core block 46 and the second fixed core block 47. A gap gc is formed between the first end ring 46b and the cylindrical portion 9d, and between the second end ring 47b and the cylindrical portion 10d. The gap ga is larger than the gap gb and the gap gc.

  Next, when the field winding 18 is energized, a magnetic flux is generated. By this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8B. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Therefore, as indicated by an arrow in FIG. 24, the main magnetic flux A flows from the first body portion 46a to the first end ring 46b, from the first end ring 46b to the cylindrical portion 9d of the first rotating core block 9A, The cylindrical portion 9d flows to the first claw-shaped magnetic pole portion 9b, flows from the first claw-shaped magnetic pole portion 9b to the armature core 6A, flows through the armature core 6A, and the second claw-shaped magnetic pole portion of the second rotating core block 10B. 10b, flows from the second claw-shaped magnetic pole portion 10b to the cylindrical portion 10d, flows from the cylindrical portion 10d to the second end ring 47b of the second fixed core block 47, and flows from the second end ring 47b to the second body portion 47a. Thus, a magnetic circuit returning to the first body portion 46a is formed.

At this time, a magnetic attractive force is generated between the first body portion 46 a and the second body portion 47 a, and the second fixed core block 47 resists the biasing force of the compression coil spring 51, and the first fixed core block 46. Move to the side. As a result, as shown in FIG. 24, the lining 54 is separated from the flange portion 10e of the second rotating core block 10B, and the braking is released.
Simultaneously with the energization of the field winding 18, an alternating current is sequentially supplied to the three-phase armature winding 7 </ b> A, and the field rotating core 8 </ b> B is rotationally driven.

Also in the twelfth embodiment, the field rotating core 8B, that is, the sheave 11 is braked / released using the magnetic flux generated by energizing the field winding 18, so that the field winding The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 47 is moved by the magnetic attractive force generated by the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force that moves the second fixed core block 47 is increased. It becomes large and can release braking reliably.
Since the second fixed core block 47 functioning as a brake armature is not included in the field rotating core portion 8B, the inertia can be reduced.
Since the compression coil spring 51 is disposed in the field fixed iron core 45, the compression coil spring 51 does not rotate, and the generation of noise is suppressed.

  According to the twelfth embodiment, even if the gap ga changes due to brake maintenance, the gap gc between the first and second end rings 46b, 47b and the cylindrical portions 9d, 10d is kept constant. As a result, the motor performance is stabilized.

  Further, the main magnetic flux A flows from the cylindrical portion 10d to the second end ring 47b, and the amount of magnetic flux flowing from the flange portion 10e to the second end ring 47b becomes extremely small. Therefore, the magnetic attractive force generated between the first fixed core block 46 and the second fixed core block 47 is not offset by the magnetic attractive force generated between the second end ring 47b and the flange portion 10e. The second fixed core block 47 acts to move to the first fixed core block 46 side. The magnetic attractive force generated when the magnetic flux flows from the cylindrical portion 10d to the second end ring 47b is a radial attractive force and is generated between the first fixed core block 46 and the second fixed core block 47. This does not affect the radial magnetic attractive force. Therefore, the magnetic attractive force that moves the second fixed core block 47 toward the first fixed core block 46 is increased, and braking can be reliably released.

Embodiment 13 FIG.
FIG. 25 is a half sectional view showing a stopped state of a rotating electric machine with brake applied to an elevator hoisting machine according to a thirteenth embodiment of the present invention, and FIG. 26 is a sectional view of the rotating electric machine with a brake according to the thirteenth embodiment of the present invention. 27 is a perspective view showing the field fixed iron core, FIG. 27 is an end view showing the field fixed iron core in the brake-equipped rotating electric machine according to the thirteenth embodiment of the present invention, and FIG. 28 is an elevator according to the thirteenth embodiment of the present invention. It is a semi-sectional view which shows the driving | running state of the rotary electric machine with a brake applied to a hoisting machine.

  In FIG. 25 to FIG. 28, the field fixed iron core portion 60 is composed of a first fixed core block 61 and a second fixed core block 62.

  The first fixed core block 61 is made of a magnetic material, and includes a first end ring 61b having a small inner diameter and a support portion 61c having a square hole shape having a predetermined axial length and a large inner diameter. The body part 61a has a ring body that is coaxially connected to both sides in the axial direction and has an outer peripheral surface of a cylindrical surface. Two guide pins 63 are provided upright at right angles to the two inner peripheral surfaces facing each other of the support portion 61c.

  The second fixed core block 62 is made of a magnetic material, has a rectangular outer shape smaller than the hole shape of the support portion 61c, and a hole having a diameter larger than the outer diameter of the cylindrical portion 10d is opened at the center position. It is composed of a pair of second end rings 62a formed by dividing a ring body having a predetermined thickness into two equal parts in the circumferential direction. A guide hole 64 is recessed in the side surface of the second end ring 62a so that the guide pin 63 can be inserted. On the inner peripheral surface of the second end ring 62a, a semi-circular lining storage recess 66 is provided, and a lining 67 is stored and disposed in the lining storage recess 66.

The second end ring 62a is attached to the support portion 61c while the guide pin 63 is inserted into the guide hole 64. A compression coil spring 65 is interposed between the inner peripheral surface of the support portion 61c and the side surface of the second end ring 62a. The end portion of the compression coil spring 65 is housed and disposed in a spring housing recess (not shown) recessed in the inner peripheral surface of the support portion 61c or the side surface of the second end ring 62a. .
The thirteenth embodiment is configured in the same manner as the above-described twelfth embodiment except that a field fixed iron core portion 60 is used instead of the field fixed iron core portion 45.

  In the rotating electrical machine with brake 1007 configured as described above, the first fixed core block 61 is press-fitted and fixed to the frame 2 and attached to the housing 1. Further, the bobbin 68 is attached to the body portion 61a of the first fixed core block 61, and the bolt 69 is attached to the first end ring 61b by fastening. A field winding 18 is wound around the bobbin 68.

  In the rotating electrical machine 1007 with a brake, the urging force of the compression coil spring 65 presses the second end ring 62a so as to move inward in the radial direction. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second end ring 62 a moves downward in FIG. 25, and the lining 67 is moved to the second rotating core by the urging force of the compression coil spring 65. It is in contact with the outer peripheral wall surface of the cylindrical portion 10d of the block 10B. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 67 and the cylindrical portion 10d. This frictional force becomes a brake torque, and the sheave 11 is prevented from rotating. Thus, the second fixed core block 62 functions as a brake armature. The second fixed core block 62, the compression coil spring 65, and the lining 67 constitute a brake mechanism unit.

  In this stop state, the gap gb is formed between the second end ring 62a and the support portion 61c, and the gap gc is formed between the second end ring 62a and the cylindrical portion 10d. A gap ga is formed between the second end ring 62a and the flange portion 10e. The gap gc is wider than the gap ga and the gap gb.

  Next, when the field winding 18 is energized, a magnetic flux is generated. By this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8B. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Therefore, as indicated by an arrow in FIG. 28, the main magnetic flux A flows from the body portion 61a to the first end ring 61b, flows from the first end ring 61b to the cylindrical portion 9d of the first rotating core block 9A, and the cylindrical portion. 9d flows to the first claw-shaped magnetic pole portion 9b, flows from the first claw-shaped magnetic pole portion 9b to the armature core 6A, flows through the armature core 6A, and reaches the second claw-shaped magnetic pole portion 10b of the second rotating core block 10B. Flows from the second claw-shaped magnetic pole portion 10b to the flange portion 10e through the cylindrical portion 10d, flows from the flange portion 10e to the second end ring 62a, flows from the second end ring 62a to the support portion 61c, and flows through the support portion 61c. Thus, a magnetic circuit is formed to return to the body portion 61a.

At this time, a magnetic attractive force is generated between the support portion 61c and the second end ring 62a, and the second fixed core block 61 moves toward the support portion 61c against the urging force of the compression coil spring 65. Thereby, as shown in FIG. 28, the lining 67 is separated from the cylindrical portion 10d of the second rotating core block 10B, and the braking is released.
Simultaneously with the energization of the field winding 18, an alternating current is sequentially supplied to the three-phase armature winding 7 </ b> A, and the field rotating core 8 </ b> B is rotationally driven.

Also in the thirteenth embodiment, the field rotating core 8B, that is, the sheave 11 is braked / released using the magnetic flux generated by energizing the field winding 18, so that the field winding The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 32 is moved by the magnetic attractive force generated by the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force that moves the second fixed core block 62 is increased. It becomes large and can release braking reliably.

Since the second fixed core block 62 functioning as a brake armature is not included in the field rotating core portion 8B, the inertia can be reduced.
Since the compression coil spring 65 is disposed in the field fixed iron core portion 60, the compression coil spring 65 does not rotate and the occurrence of vibration is suppressed.

  According to the thirteenth embodiment, since the second fixed core block 62 functioning as a brake armature is disposed on the outer peripheral side of the field rotating core portion 8B, the maintenance of the brake is facilitated.

  Since the gap ga is smaller than the gap gc, most of the magnetic flux generated by energizing the field winding 18 flows from the flange portion 10e to the second end ring 62a and from the cylindrical portion 10d to the second end ring. The amount of magnetic flux flowing into 62a is extremely small. Therefore, the magnetic attraction force generated between the support portion 61c and the second end ring 62a is not offset by the magnetic attraction force generated between the second end ring 62a and the cylindrical portion 10d, so that the second end It acts to move the ring 62a toward the support portion 61c. In addition, the magnetic attractive force generated by the magnetic flux flowing through the gap ga is an axial attractive force, which affects the radial magnetic attractive force generated between the second end ring 62a and the support portion 61c. Don't give. Therefore, the magnetic attraction force that moves the second end ring 62a toward the support portion 61c increases, and braking can be reliably released.

Embodiment 14 FIG.
FIG. 29 is a half sectional view showing an operating state of a brake-equipped rotating electrical machine applied to an elevator hoisting machine according to Embodiment 14 of the present invention, and FIG. 30 is a brake-equipped rotating electrical machine according to Embodiment 14 of the present invention. FIG. 31 is a half sectional view showing a stopped state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 14 of the present invention.

  In FIG. 29 to FIG. 31, the field rotating iron core portion 70 is composed of a first rotating core block 71 and a second rotating core block 72. The first rotating core block 71 is made of a magnetic material, and has a first bottom portion 71a having a center hole 71c, and extends from the outer peripheral edge portion of one surface of the first bottom portion 71a in the axial direction, and the like in the circumferential direction. 1st claw-shaped magnetic pole part 71b arrange | positioned by angular pitch, and the shoulder part 71d extended in the radial direction inner side from the other surface side edge part of the 1st bottom part 71a are provided. The second rotary core block 72 is made of a magnetic material, and extends in the axial direction from the outer peripheral edge portion of one surface of the second bottom portion 72a and the second bottom portion 72a, and is disposed at an equiangular pitch in the circumferential direction. The second claw-shaped magnetic pole portion 72b, the sheave 11 that extends coaxially from the other surface of the second bottom portion 72a, and the center hole 72c that is drilled at the axial center of the second bottom portion 72a and the sheave 11 And.

A guide pin 73 extends in the axial direction from between two opposing second claw-shaped magnetic pole portions 72b on the outer peripheral edge portion of one surface of the second bottom portion 72a of the second rotating core block 72. Further, the compression coil spring 74 is disposed between the two opposing second claw-shaped magnetic pole portions 72 b on the outer peripheral edge portion of one surface of the second bottom portion 72 a of the second rotating core block 72. Further, the guide hole 75 is recessed in the tip surface of the claw-shaped magnetic pole part 71b of the first rotating core block 71 so as to correspond to the guide pin 73 with the hole direction as the axial direction.
A lining fixing portion 76 projects from the bottom 3 of the housing 1 so as to face the first bottom 71 a of the first rotating core block 71, and a lining 77 is attached to the lining fixing portion 76. A maintenance hole 78 is formed in the bottom portion 3 so as to be accessible to the lining fixing portion 76 from the outside.

  The first rotating core block 71 is rotatably attached to the main shaft 4 via the bearing 12 attached to the center hole 71c with the first bottom 71a facing the bottom 3. The first rotating core block 71 is attached to the bearing 12 so as to be movable in the axial direction. The second rotating core block 72 has the second claw-shaped magnetic pole portion 72b meshed with the first claw-shaped magnetic pole portion 71b, and the guide pin 73 is inserted into the guide hole 75 so that the bearing 12 mounted in the center hole 72c is mounted. And is attached to the main shaft 4 so as to be rotatable and restricted in movement in the axial direction. Thus, the first and second claw-shaped magnetic pole portions 71b and 72b are alternately arranged in the circumferential direction at an equiangular pitch.

  The field-fixed iron core portion 80 is configured by coaxially connecting large-diameter first and second end rings 80b and 80c to both sides in the axial direction of the small-diameter body portion 80a, and a center hole 80d is formed at the center position. Has been. Then, the field fixed iron core portion 80 is housed inside the field rotating iron core portion 70 with the first end ring 80b facing the first bottom portion 71a and the main shaft 4 is inserted and fixed in the center hole 80d. It is attached to the main shaft 4. The bobbin 81 is attached to the body portion 80a in an externally fitted state, is locked to the first end ring 80b, is restricted from moving in the axial direction, and is fixed to the field so as not to exceed the outer diameter of the first end ring 80b. It is attached to the iron core 80.

  In the rotating electrical machine with brake 1008 configured as described above, the urging force of the compression coil spring 74 presses the first rotating core block 71 so as to move to the left side in FIG. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the first rotating core block 71 has the first bottom 71a of the first rotating core block 71 applied with the lining 77 by the urging force of the compression coil spring 65. Touching. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 77 and the first bottom portion 71a, and this frictional force becomes a brake torque, thereby preventing the sheave 11 from rotating. Thus, the 1st rotation core block 71 fulfills the function of a brake armature. The second rotating core block 71, the compression coil spring 74, and the lining 77 constitute a brake mechanism unit.

  In this stopped state, a gap gb is formed between the first end ring 80b and the first bottom portion 71a. A gap gc is formed between the first and second end rings 80b and 80c and the first and second claw-shaped magnetic pole portions 71b and 72b. The gap gc is wider than the gap gb.

  Next, when the field winding 18 is energized, a magnetic flux is generated. With this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core 70. That is, the first claw-shaped magnetic pole part 71b is an N pole, and the second claw-shaped magnetic pole part 72b is an S pole. Therefore, as indicated by an arrow in FIG. 29, the main magnetic flux A flows from the body portion 80a to the first end ring 80b, from the first end ring 80b to the first bottom portion 71a of the first rotating core block 71, The first claw-shaped magnetic pole portion 71b flows from the bottom portion 71a, flows from the first claw-shaped magnetic pole portion 71b to the armature core 6, flows through the armature core 6, and the second claw-shaped magnetic pole portion of the second rotating core block 72. 72b, flows from the second claw-shaped magnetic pole portion 72b to the second bottom portion 72a, flows from the second bottom portion 72a to the second end ring 80c, flows through the second end ring 80c, and returns to the body portion 80a. Is done.

At this time, a magnetic attractive force is generated between the first end ring 80b and the first bottom portion 71a, and the first rotating core block 71 moves toward the first end ring 80b against the urging force of the compression coil spring 74. Moving. As a result, the first bottom 71a of the first rotating core block 71 is separated from the lining 77 as shown in FIG. 29, and braking is released.
Simultaneously with the energization of the field winding 18, an alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 70 is rotationally driven.

Also in the fourteenth embodiment, since the magnetic field generated by energization of the field winding 18 is used to brake / release the field rotary core 70, that is, the sheave 11, the field winding. The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second rotary core block 71 is moved by the magnetic attractive force of the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force that moves the second rotary core block 71 is reduced. It becomes large and can release braking reliably.
Since the second rotating core block 71 constituting the field rotating iron core portion 70 functions as a brake armature, the inertia can be reduced as compared with a case where a separate brake armature is provided.

  According to the fourteenth embodiment, the lining fixing portion 76 is provided on the main shaft 4 side of the inner surface of the bottom portion 3 of the housing 1, and the maintenance hole 78 is accessible from the outside to the lining 77 attached to the lining fixing portion 76. It is formed on the bottom 3. Therefore, the lining 77 can be accessed without removing the field rotating iron core portion 70, and the maintenance of the brake becomes easy.

Embodiment 15 FIG.
FIG. 32 is a half sectional view showing a stopped state of the rotating electric machine with brake applied to the elevator hoisting machine according to the fifteenth embodiment of the present invention, and FIG. 33 is a schematic diagram of the rotating electric machine with brake according to the fifteenth embodiment of the present invention. FIG. 34 is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 15 of the present invention.

  In FIG. 32 to FIG. 34, the field rotating core 90 is composed of a first rotating core block 91 and a second rotating core block 92. The first rotating core block 91 is made of a magnetic material, and has a cylindrical portion 91a and a first claw-like shape that extends from one surface of the cylindrical portion 91a in the axial direction and is arranged at an equiangular pitch in the circumferential direction. A magnetic pole portion 91b. The second rotating core block 92 is made of a magnetic material, and has a second bottom portion 92a, a cylindrical portion 92d protruding in the axial direction from the outer peripheral edge of one surface of the second bottom portion 92a, and a shaft from the cylindrical portion 92d. Second claw-shaped magnetic pole portions 92b extending in the direction and arranged at an equiangular pitch in the circumferential direction, sheave 11 extending coaxially from the other surface of the second bottom portion 92a, and the second bottom portion 92a And a center hole 92c drilled at the axial center position of the sheave 11.

The first and second rotating core blocks 91 and 92 are combined so that the first and second claw-shaped magnetic pole portions 91b and 92b mesh with each other, and the cylindrical portion 91a and the second claw-shaped magnetic pole portion 92b are nonmagnetic. The cylindrical member 92d and the first claw-shaped magnetic pole portion 91b are fixedly joined by the connecting member 93 and integrated together to form the field rotating core portion 90. As a result, the first and second claw-shaped magnetic pole portions 91b and 92b are alternately arranged in the circumferential direction at an equiangular pitch.
The field rotating core 90 is attached to the main shaft 4 via a bearing 12 mounted in the center hole 92c so as to be rotatable and restricted in movement in the axial direction.

  The fifteenth embodiment is configured in the same manner as the seventh embodiment except that a field rotating core 90 is used instead of the field rotating core 8A.

  In the rotating electrical machine with brake 1009 configured in this way, the urging force of the compression coil spring 21 presses the second end ring 17b to move to the right side in FIG. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second end ring 17 b moves to the right side in FIG. 32, and the lining 24 is moved by the urging force of the compression coil spring 21. 92 abuts on the second bottom 92a. Therefore, when the sheave 11 is about to rotate, a frictional force is generated between the lining 24 and the second bottom portion 92a, and this frictional force becomes a brake torque, thereby preventing the sheave 11 from rotating. Thus, the 2nd fixed core block 17 fulfill | performs the function of a brake armature. The second fixed core block 17, the compression coil spring 21, and the lining 24 constitute a brake mechanism unit.

  Next, when the field winding 18 is energized, a magnetic flux is generated. Due to this magnetic flux, N poles and S poles are alternately formed on the outer peripheral surface of the field rotating core 90 in the circumferential direction. That is, the first claw-shaped magnetic pole portion 91b becomes the N pole, and the second claw-shaped magnetic pole portion 92b becomes the S pole. Further, the gap ga is larger than the gaps gb and gc. Therefore, as indicated by an arrow in FIG. 34, the main magnetic flux A flows from the first body portion 16a to the first end ring 16b, from the first end ring 16b to the cylindrical portion 91a of the first rotating core block 91, The second claw-shaped magnetic pole portion of the second rotating core block 92 flows from the cylindrical portion 91a to the first claw-shaped magnetic pole portion 91b, flows from the first claw-shaped magnetic pole portion 91b to the armature core 6, and flows through the armature core 6. 92b, from the second claw-shaped magnetic pole portion 92b to the cylindrical portion 92d, from the cylindrical portion 92d to the second end ring 17b, from the second end ring 17b to the second body portion 17a, and the second body portion 17a. A magnetic circuit is formed that flows and returns to the first body portion 16a.

At this time, a magnetic attractive force is generated between the first fixed core block 16 and the second fixed core block 17, and the second fixed core block 17 resists the urging force of the compression coil spring 21. Move to block 16 side. Thereby, as shown in FIG. 34, the lining 24 is separated from the second bottom portion 92a of the second rotating core block 92, and the braking is released.
Simultaneously with the energization of the field winding 18, an alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 90 is rotationally driven.

Also in the fifteenth embodiment, the field rotating iron core 90, that is, the sheave 11 is braked / released using the magnetic flux generated by energizing the field winding 18, so that the field winding The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 17 is moved by the magnetic attractive force generated by the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the magnetic attractive force that moves the second fixed core block 17 is increased. It becomes large and can release braking reliably.

Since the second fixed core block 17 functioning as a brake armature is not included in the field rotating core portion 90, the inertia can be reduced.
Since the compression coil spring 21 is disposed in the field fixed iron core portion 15, the compression coil spring 21 does not rotate, and the occurrence of vibration is suppressed.

According to the fifteenth embodiment, even if the gap ga changes due to brake maintenance, the gap gc between the first and second end rings 16b, 17b and the cylindrical portions 91a, 92d is kept constant. As a result, the motor performance is stabilized.
Further, since the field rotating iron core 90 is cantilevered, the field rotating iron core 90 can be easily removed and the brake can be easily maintained.

  Further, since the gap ga is formed larger than the gap gc, most of the magnetic flux generated by energizing the field winding 18 flows from the cylindrical portion 92d into the second end ring 17b and from the second bottom portion 92a to the second end. The amount of magnetic flux flowing into the ring 17b is extremely small. Therefore, the magnetic attractive force generated between the first fixed core block 16 and the second fixed core block 17 is offset by the magnetic attractive force generated between the second fixed core block 17 and the second bottom portion 92a. Without acting, the second fixed core block 17 is moved to the first fixed core block 16 side. The magnetic attractive force generated when the magnetic flux flows through the gap gc is a radial attractive force, and the axial magnetic attractive force generated between the first fixed core block 16 and the second fixed core block 17. Has no effect. Therefore, the magnetic attractive force that moves the second fixed core block 17 toward the first fixed core block 16 is increased, and braking can be reliably released.

In the fifteenth embodiment, the cylindrical portion of the first rotating core block and the second claw-shaped magnetic pole portion of the second rotating core block are fixed using a connecting member made of a nonmagnetic material, and the first rotating core block is fixed. The first claw-shaped magnetic pole portion and the cylindrical portion of the second rotating core block are fixed using a connecting member made of a non-magnetic material, but the polarity is opposite to the magnetic field polarity in the axial direction. The cylindrical portion and the claw-shaped magnetic pole portion may be fixed using a magnetized magnet.
In the fifteenth embodiment, the field rotating iron core 90 is described as being applied to the rotating electric machine with brake according to the seventh embodiment. However, the rotation with brake according to the first to sixth embodiments and the eighth to thirteenth embodiments is described. Even when applied to an electric machine, the same effect is obtained.

Embodiment 16 FIG.
FIG. 35 is a half cross-sectional view showing a stopped state of the rotating electrical machine with brake applied to the elevator hoisting machine according to the sixteenth embodiment of the present invention, and FIG. 36 is a diagram of the rotating electrical machine with brake according to the sixteenth embodiment of the present invention. FIG. 37 is an exploded perspective view showing a field fixed iron core, and FIG. 37 is a half sectional view showing an operating state of a rotating electrical machine with a brake applied to an elevator hoist according to Embodiment 16 of the present invention.

  35 and 36, the field fixed iron core portion 100 includes a first fixed core block 101, a second fixed core block 110, and a third fixed core block 115.

  The first fixed core block 101 is made of a magnetic material, and a small-diameter first body portion 101a, a large-diameter second body portion 101b, and a small-diameter third body portion 101c are coaxially connected, and a center hole 102 is formed. It is drilled at the axial center position. Then, three guide pins 103 are provided in the axial direction from the end surfaces of the first body part 101a and the third body part 101c, and three guide pins 103 are arranged at an equiangular pitch on the same circumference. Further, three spring accommodating recesses 104 are respectively provided in the end surfaces of the first body part 101a and the third body part 101c, and are arranged at an equiangular pitch on the same circumference, and a compression coil spring as an elastic body. Reference numeral 105 denotes an end portion housed in each of the spring housing recesses 104. The first fixed core block 101 has a main shaft 4 inserted into and fixed to the center hole 102 with the first body portion 101a facing the first bottom portion 9a and the third body portion 101c facing the second bottom portion 10a. 4 is attached.

  The second fixed core block 110 is made of a magnetic material, and a fourth body portion 110a having the same diameter as the first body portion 101a and a first end ring 110b having a larger diameter than the first body portion 101a are coaxially connected. The center hole 111 is formed at the axial center position. Then, three guide holes 112 are provided in the end surface of the fourth body portion 110a so that the guide pins 103 can be inserted with the hole direction as an axial direction, and three guide holes 112 are arranged at an equiangular pitch on the same circumference. . Furthermore, an annular lining storage recess (not shown) is concentrically recessed on the end surface of the first end ring 110b opposite to the fourth body 110a, and an annular lining 113 is formed in the lining storage recess. It is arranged. The second fixed core block 110 is attached to the main shaft 4 by inserting the main shaft 4 into the center hole 111 in a loosely fitting state with the fourth body portion 110a facing the first body portion 101a. At this time, the guide pin 103 is inserted into the guide hole 112, and the second fixed core block 110 can be coaxial with the first fixed core block 101 and can only move in the axial direction.

  The third fixed core block 115 is made of a magnetic material, and a fifth body portion 115a having the same diameter as the third body portion 101c and a second end ring 115b having a larger diameter than the third body portion 101c are coaxially connected. A center hole 116 is formed at the axial center position. Then, three guide holes (not shown) are provided in the end surface of the fifth body portion 115a so that the guide pins 103 can be inserted with the hole direction as the axial direction, and three guide holes are arranged at an equiangular pitch on the same circumference. It is installed. Further, an annular lining storage recess 117 is concentrically recessed on the end surface of the second end ring 115b opposite to the fifth body 115a, and an annular lining 118 is disposed in the lining storage recess 117. ing. The third fixed core block 115 is attached to the main shaft 4 with the fifth body portion 115a facing the third body portion 101c and the main shaft 4 being inserted into the center hole 116 in a loosely fitted state. At this time, the guide pin 103 is inserted into the guide hole, and the third fixed core block 115 can be coaxial with the first fixed core block 101 and can only move in the axial direction.

The bobbin 120 is mounted in a state in which a cylindrical winding body portion 120a is externally fitted to the second body portion 101b. The bobbin 120 is locked to the first body portion 101a and the third body portion 101c of the first fixed core block 101, and is attached while its movement in the axial direction is restricted. The second fixed core block 110 and the third fixed core block 115 are movable in the axial direction with respect to the bobbin 120.
Other configurations are the same as those in the first embodiment.

  In the rotating electrical machine with brake 1010 configured as described above, the urging force of the compression coil spring 105 presses the second fixed core block 110 and the third fixed core block 115 in the axial direction so as to separate from the first fixed core block 101. doing. Therefore, in a state where the field winding 18 is not energized, that is, in a stopped state, the second fixed core block 110 moves to the left side in FIG. 35 and the third fixed core block 115 moves to the right side in FIG. Therefore, the lining 113 abuts against the first bottom portion 9 a of the first rotating core block 9 by the biasing force of the compression coil spring 105, and the lining 118 is the second bottom portion 10 a of the second rotating core block 10 by the biasing force of the compression coil spring 105. Abut. Thus, when the sheave 11 is about to rotate, a frictional force is generated between the lining 113 and the first bottom portion 9a, and further between the lining 118 and the second bottom portion 10a. The rotation of the car 11 is prevented. Thus, the 2nd fixed core block 110 and the 3rd fixed core block 115 fulfill | perform the function of a brake armature. The second fixed core block 110, the third fixed core block 115, the compression coil spring 105, and the linings 113 and 118 constitute a brake mechanism unit.

  Next, when the field winding 18 is energized, a magnetic flux is generated. With this magnetic flux, N poles and S poles are alternately formed in the circumferential direction on the outer peripheral surface of the field rotating core portion 8. In other words, the first claw-shaped magnetic pole portion 9b is an N pole, and the second claw-shaped magnetic pole portion 10b is an S pole. Further, the gap ga is larger than the gap gb. Therefore, as indicated by an arrow in FIG. 37, the main magnetic flux A flows from the second body part 101b through the first body part 101a to the fourth body part 110a, and from the fourth body part 110a to the first end ring 110b. , Flows from the first end ring 110b to the first bottom portion 9a of the first rotating core block 9, flows from the first bottom portion 9a to the first claw-shaped magnetic pole portion 9b, and from the first claw-shaped magnetic pole portion 9b to the armature core 6 Flows into the armature core 6, flows into the second claw-shaped magnetic pole portion 10b of the second rotating core block 10, flows from the second claw-shaped magnetic pole portion 10b to the second bottom portion 10d, and then flows from the second bottom portion 10b to the second. The magnetic circuit is formed by flowing into the end ring 115b, flowing from the second end ring 115b into the fifth body part 115a, returning from the fifth body part 115a through the third body part 101c to the second body part 101b. It is.

At this time, a magnetic attractive force is generated between the first fixed core block 101 and the second fixed core block 110 and between the first fixed core block 101 and the third fixed core block 115. Therefore, the second fixed core block 110 resists the urging force of the compression coil spring 105, and the third fixed core block 115 resists the urging force of the compression coil spring 105. Move to. As a result, the linings 113 and 118 are separated from the first bottom portion 9a of the first rotating core block 9 and the second bottom portion 10a of the second rotating core block 10, as shown in FIG. 37, and braking is released.
Simultaneously with energization of the field winding 18, an alternating current is sequentially supplied to the three-phase armature winding 7, and the field rotating core 8 is rotationally driven.

Also in the sixteenth embodiment, the field rotating core 8, that is, the sheave 11 is braked / released using the magnetic flux generated by energizing the field winding 18, so the field winding The power supply for the vehicle and the power supply for the brake can be shared, and the cost can be reduced.
Since the second fixed core block 110 and the third fixed core block 115 are moved by the magnetic attractive force of the main magnetic flux A flowing through the magnetic circuit formed by energizing the field winding 18, the second fixed core block 110 is moved. As a result, the magnetic attractive force for moving the third fixed core block 115 is increased, and braking can be reliably released.

Since the second fixed core block 110 and the third fixed core block 115 functioning as a brake armature are not included in the field rotating core portion 8, the inertia can be reduced.
Since the compression coil spring 105 is disposed in the field fixed iron core portion 100, the compression coil springs 113 and 117 do not rotate, and the generation of noise is suppressed.

  And since the 2nd fixed core block 110 and the 3rd fixed core block 115 as a brake armature function independently, the brake torque per brake mechanism can be made small, and a brake mechanism can be reduced in size. Further, even when one of the brake armatures fails and cannot move, the other can be moved and braking can be performed, so that safety is improved.

  In the sixteenth embodiment, the brake-equipped rotating electric machine in which the field fixed iron core is disposed on the inner periphery of the field rotating iron core has been described. The same effect can be obtained even if the present invention is applied to a rotating electric machine with a brake in which the magnetically fixed iron core is disposed on the outer periphery of the field rotating iron core.

Embodiment 17. FIG.
FIG. 38 is a perspective view showing a field rotating iron core in a rotating electrical machine with brake according to Embodiment 17 of the present invention, and FIG. 39 is a schematic configuration of a control device in the rotating electrical machine with brake according to Embodiment 17 of the present invention. FIG. 40 is a diagram showing a time calendar of an energized state in a rotating electric machine with a brake applied to an elevator hoisting machine according to Embodiment 17 of the present invention.

  In FIG. 38, the first and second rotating core blocks 91 and 92 are combined so that the first and second claw-shaped magnetic pole portions 91b and 92b mesh with each other, and the cylindrical portion 91a and the second claw-shaped magnetic pole portion 92b are combined. The cylindrical portion 92d and the first claw-shaped magnetic pole portion 91b are fixed in the axial direction and the magnetic field polarity by being fixed by a connecting member 94 made of a magnet magnetized in the direction of magnetic flux opposite to the magnetic field polarity. Magnetic flux that is fixed by a connecting member 94 made of a magnet magnetized in the opposite magnetic flux direction, and in which the first claw-shaped magnetic pole portion 91b and the second claw-shaped magnetic pole portion 92b are opposite to the field polarity in the circumferential direction. Are fixed and integrated by a connecting member 95 made of a magnet magnetized in the direction of the magnetic field 90A to constitute a field rotating iron core 90A. Thus, the first and second claw-shaped magnetic pole portions 91b and 92b are alternately arranged in the circumferential direction at an equiangular pitch. The connecting members 94 and 95 cause the magnetic flux to flow in a direction that reinforces the magnetic flux flowing through the magnetic circuit formed when the field winding 18 is energized.

The field rotating iron core portion 90A configured in this way is attached to the main shaft 4 via the bearing 12 mounted in the center hole 92c so that the movement in the axial direction is restricted.
The rotating electrical machine with brake according to the seventeenth embodiment is configured in the same manner as in the fifteenth embodiment, except that the field rotating core 90A is used instead of the field rotating core 90.

  In the rotating electrical machine with a brake according to the seventeenth embodiment, as shown in FIG. 39, a field magnet provided with a field current controller 201 which is a current control means for controlling the field current applied to the field winding 18 is provided. Winding control device 200, armature current controller 211 which is a current control means for controlling the armature current applied to armature winding 7, and current detection means for detecting the armature current flowing in armature winding 7 An armature winding control device 210 including an armature current detector 212.

  Next, the operation of the rotating electrical machine with brake according to the seventeenth embodiment will be described with reference to FIG.

  First, it is assumed that the field rotating iron core portion 90A is driven to rotate. Here, the field current controller 201 of the field winding control device 200 is based on a brake operation signal (hereinafter referred to as a stop signal) for operating the brake mechanism section, as shown in FIG. The energization to the field winding 18 is stopped.

  As a result, the magnetic attractive force acting on the second fixed core block 17 by the magnetic flux generated by the field winding 18 is lost. Therefore, the second fixed core block 17 is moved rightward in FIG. 32 by the urging force of the compression coil spring 21, and the lining 24 is pressed against the second bottom 92 a of the second rotating core block 92. A frictional force is generated between the lining 24 and the second bottom portion 10a, and this frictional force (brake torque) is transmitted to the sheave 11 so that the sheave 11 is prevented from rotating. Thus, by stopping energization to the field winding 18, the rotating electrical machine with brake is stopped.

  At this time, as shown in FIG. 40 (d), the time from the stop signal until the lining 24 comes into contact with the second bottom 92a and the field rotating core 90A is braked (hereinafter referred to as armature release time). Occurs as a brake operation delay. During this armature release time, braking by the brake does not act on the field rotating core 90A integrated with the sheave 11. That is, during the armature release time, no torque is generated in the field rotating core 90A.

  Here, since the connecting members 94 and 95 made of magnets are attached to the field rotating core portion 90A, when the energization to the field winding 18 is stopped, the connection is made instead of the magnetic flux by the field winding 18. Magnetic flux flows by the members 94 and 95, and magnetic poles are formed in the field rotating core 90A.

  Therefore, as shown in FIG. 40 (b), the armature current controller 211 of the armature winding control device 210 receives the stop signal and supplies the current to the armature winding 7 during the armature release time. Apply. The armature current controller 211 is drive-controlled so that the armature current detected by the armature current detector 212 has a current value necessary to generate a torque necessary for the field rotating core 90A. As a result, as shown in FIG. 40C, a predetermined torque M is generated in the field rotating core 90A. Therefore, as shown in FIG. 40 (e), the torque M is transmitted from the stop signal to the sheave 11 from the field rotating core 90A during the armature release time, and after the armature release time elapses, the brake torque is increased. It is transmitted to the car 11 and the sheave 11 is prevented from rotating.

  Specifically, the armature release time is predicted from the mass of the second fixed core block 17, the spring constant of the compression coil spring 21, and the gap gb, and the predicted armature release time is stored in the storage unit ( (Not shown). In addition, during the armature release time, the torque M to be generated in the field rotary core 90A is set, and the current value required to generate the torque M is stored in the storage unit (not shown) of the armature winding control device 210. Stored in When receiving the stop signal, the armature winding controller 210 receives the armature current based on the detection value of the armature current detector 212 only during the predicted armature release time stored in the storage unit. Is controlled to drive the armature current controller 211 such that becomes the current value stored in the storage unit.

  According to the seventeenth embodiment, the field rotating core portion 90A is in a state from when the field rotating core portion 90A is rotationally driven until the field winding 18 is deenergized until braking is applied. The torque M necessary for the operation is generated. Therefore, when the rotating electrical machine with a brake is applied to an elevator hoisting machine, torque can always be generated in the field rotating core 90A, and unnecessary rotation of the sheave 11 can be prevented.

  In Embodiment 17, it is assumed that all the connecting members are made of magnets, but it is not necessary to make all of the connecting members with magnets. The connecting member may be made of a nonmagnetic material.

Embodiment 18 FIG.
FIG. 41 is a perspective view showing a field rotating iron core portion in a rotary electric machine with brake according to Embodiment 18 of the present invention.

In FIG. 41, the conducting wire 96 is produced in an annular shape short-circuited only to itself, and each of the outer peripheral portion of the cylindrical portion 91a of the first rotating core block 91 and the outer peripheral portion of the cylindrical portion 92d of the second rotating core block 92 is The magnetic field winding 18 is arranged so as to interlink with the magnetic flux flowing through the magnetic circuit formed by energizing the field winding 18.
In the eighteenth embodiment, the configuration is the same as in the fifteenth embodiment, except that the conducting wire 96 is disposed on the outer periphery of the cylindrical portions 91a and 92d of the field rotating core portion 90.

  The eighteenth embodiment also includes a field winding control device 200 and an armature winding control device 210 shown in FIG.

  Next, the operation of the rotating electrical machine with brake according to the eighteenth embodiment will be described with reference to FIG.

  First, it is assumed that the field rotating iron core 90 is driven to rotate. Here, the field current controller 201 of the field winding control device 200 stops energization of the field winding 18 based on the stop signal, as shown in FIG.

  As a result, the magnetic attractive force acting on the second fixed core block 17 by the magnetic flux generated by the field winding 18 is lost. Therefore, the second fixed core block 17 is moved rightward in FIG. 32 by the urging force of the compression coil spring 21, and the lining 24 is pressed against the second bottom 92 a of the second rotating core block 92. A frictional force is generated between the lining 24 and the second bottom portion 10a, and this frictional force (brake torque) is transmitted to the sheave 11 so that the sheave 11 is prevented from rotating. Thus, by stopping energization to the field winding 18, the rotating electrical machine with brake is stopped.

  At this time, as shown in FIG. 40 (d), the armature release time occurs as a brake operation delay. During this armature release time, braking by the brake does not act on the field rotating core 90 integrated with the sheave 11. That is, no torque is generated in the field rotating core 90 during the armature release time.

  Here, when the energization to the field winding 18 is stopped, an electromotive force is generated in the conducting wire 96 due to the inductive property of the conducting wire 96. That is, when the energization of the field winding 18 is stopped, the magnetic field around the conducting wire 96 is changed, and an electromotive force is generated to cause a current to flow through the conducting wire 96. A current flows through the conductive wire 96 due to the electromotive force. As a result, instead of the magnetic flux generated by the field winding 18, the magnetic flux flows when a current flows through the conducting wire 96, and the magnetic pole is formed in the field rotating core 90.

  Therefore, as shown in FIG. 40 (b), the armature current controller 211 of the armature winding control device 210 receives the stop signal and converts the armature current into the armature winding during the armature release time. 7 is applied. The armature current controller 211 is driven and controlled so that the armature current detected by the armature current detector 212 has a current value necessary for generating a torque necessary for the field rotating core 90. As a result, as shown in FIG. 40C, a predetermined torque M is generated in the field rotating core 90. Therefore, as shown in FIG. 40 (e), the torque M is transmitted from the field stop iron core 90 to the sheave 11 during the armature release time from the stop signal, and after the armature release time elapses, the brake torque is increased. It is transmitted to the car 11 and the sheave 11 is prevented from rotating.

  Also in the eighteenth embodiment, the predicted armature release time and the current value necessary for generating the torque M are stored in the storage unit (not shown) of the armature winding control device 210. When receiving the stop signal, the armature winding controller 210 receives the armature current based on the detection value of the armature current detector 212 only during the predicted armature release time stored in the storage unit. Is controlled to drive the armature current controller 211 such that becomes the current value stored in the storage unit.

  According to the eighteenth embodiment, the field rotating core 90 is from the state in which the field rotating core 90 is rotationally driven until the field winding 18 is deenergized until the brake is braked. The torque M necessary for the operation is generated. Therefore, when the rotating electrical machine with a brake is applied to an elevator hoisting machine, torque can always be generated in the field rotating core 90, and unnecessary rotation of the sheave 11 can be prevented.

  In the eighteenth embodiment, the conducting wire is arranged on the outer periphery of the cylindrical portion of the first and second rotating core blocks, but the conducting wire flows through a magnetic circuit formed by energizing the field winding. For example, the conductive wire may be disposed on the inner circumference of the cylindrical portion of the first and second rotating core blocks. Moreover, you may arrange | position a conducting wire only to the outer periphery of the 2nd bottom part of a 2nd rotor core block.

  In the eighteenth embodiment, a conductor is arranged in the rotating electric machine with brake according to the fifteenth embodiment, and the inductivity of the conductor 96 is used to generate torque in the field rotary core during the armature release time. However, for example, the same effect can be obtained even if the conductive wire is disposed in the rotating electrical machine with brake according to the first embodiment.

Embodiment 19. FIG.
FIG. 42 is a block diagram showing a schematic configuration of a control device in a rotating electrical machine with brake according to Embodiment 19 of the present invention, and FIG. 43 shows rotation with brake applied to an elevator hoist according to Embodiment 19 of the present invention. FIG. 44 is a diagram of a first time calendar showing an energized state in a rotating electrical machine with a brake applied to an elevator hoisting machine according to Embodiment 19 of the present invention. It is.

  In FIG. 42, the control device includes a field voltage controller 202 which is a voltage control means for controlling a voltage applied to the field winding 18 and a current detection means for detecting a field current flowing in the field winding 18. A field winding control device 200A provided with a certain field current detector 203, an armature current controller 211 which is a current control means for controlling an armature current applied to the armature winding 7, and an armature winding And an armature winding control device 210 provided with an armature current detector 212 which is a current detection means for detecting an armature current flowing through 7.

  Here, the predicted armature release time and the armature release current value are stored in a storage unit (not shown) of the field winding control device 200A. Further, the predicted armature release time and the current value necessary for generating the torque M are stored in a storage unit (not shown) of the armature winding control device 210. The armature release current value is that the magnetic attractive force generated between the first fixed core block 16 and the second fixed core block 17 by the field winding 18 is slightly smaller than the urging force of the compression coil spring 21. It is the field current value at a certain point.

  Next, the operation of the rotating electric machine with brake 1009 in which the present control device is applied to the fifteenth embodiment will be described with reference to FIG.

  First, it is assumed that the field rotating iron core 90 is driven to rotate. Here, the field current controller 201 of the field winding control device 200 stops energization of the field winding 18 based on the stop signal, as shown in FIG.

  At this time, as shown in FIG. 43B, after the voltage of the field winding 18 is reduced to 0, the electric field constant (R / L) determined by the resistance and inductance of the field winding 18 is used. The current of the magnetic winding 18 gradually decreases. When the current of the field winding 18 reaches a predetermined value, the magnetic attractive force acting on the second fixed core block 17 by the magnetic flux generated by the field winding 18 is the urging force of the compression coil spring 21. The second fixed core block 17 starts moving. The field current value when the second fixed core block 17 starts to move is the armature release current value. The second fixed core block 17 is further moved rightward in FIG. 32 by the urging force of the compression coil spring 21, and the lining 24 is pressed against the second bottom portion 92 a of the second rotating core block 92. The brake torque is transmitted to the sheave 11 and the sheave 11 is prevented from rotating. Thus, by stopping energization to the field winding 18, the rotating electrical machine with brake is stopped.

  At this time, as shown in FIG. 43 (e), the armature release time is generated as a brake operation delay from the stop signal. During this armature release time, braking by the brake does not act on the field rotating core 90 integrated with the sheave 11. That is, no torque is generated in the field rotating core 90 during the armature release time.

  Therefore, the field winding control device 200A controls the field voltage so that the field current becomes the armature release current value based on the detection value of the field current detector 203 during the predicted armature release time. The device 202 is driven and controlled. As a result, the voltage of the field winding 18 is held at the maximum value of the armature release voltage during the predicted armature release time, as shown in FIG. The maximum value of the armature release voltage is a voltage value applied to the field winding 18 so that the armature release current value flows in a steady state.

  Further, as shown in FIG. 43 (c), the armature current controller 211 of the armature winding control device 210 receives the stop signal and converts the armature current into the armature winding during the armature release time. 7 is applied. The armature current controller 211 is driven and controlled so that the armature current detected by the armature current detector 212 has a current value necessary for generating a torque necessary for the field rotating core 90. Thereby, as shown in FIG. 43 (d), a predetermined torque M is generated in the field rotating core 90. Therefore, as shown in FIG. 43 (f), the torque M is transmitted from the stop signal to the sheave 11 during the armature release time, and after the armature release time elapses, the brake torque is transmitted to the rope. It is transmitted to the car 11 and the sheave 11 is prevented from rotating.

  Here, in the operation of the rotating electrical machine with brake 1009 based on FIG. 43, the field winding controller 200A causes the field voltage controller to have the armature release current value during the armature release time. 202 is driven and controlled. However, as shown in FIG. 44, the field winding control device 200A drives the field voltage controller 202 so that the field current is lower than the armature release current value during the armature release time. You may control. In this case, as shown in FIG. 44 (a), the voltage applied to the field winding 18 becomes smaller than the maximum value of the armature release voltage, and the current supplied to the field winding 18 is changed to the second value. The fixed core block 17 can be controlled to reach a current that can move against the urging force of the compression coil spring 21 in a shorter time. Thereby, control which shortens armature release time is attained.

Also in the nineteenth embodiment, the field rotating core 90 is moved from the state in which the field rotating core 90 is rotationally driven to the time when the field winding 18 is deenergized until the brake is braked. Necessary torque M is generated. Therefore, when the rotating electrical machine with a brake is applied to an elevator hoisting machine, torque can always be generated in the field rotating core 90, and unnecessary rotation of the sheave 11 can be prevented.
Furthermore, by controlling the voltage applied to the field winding 18, the field current flowing through the field winding 18 can be controlled, and the armature release time can be adjusted.

  In the nineteenth embodiment, the case where the rotating electric machine with brake according to the fifteenth embodiment is controlled has been described. For example, the same effect can be obtained by controlling the rotating electric machine with brake according to the first embodiment. Is obtained.

Embodiment 20. FIG.
FIG. 45 is a time calendar showing the energized state in the rotating electrical machine with brake applied to the elevator hoisting machine according to Embodiment 20 of the present invention, and FIG. 46 is a rotating electrical machine with brake according to Embodiment 20 of the present invention. It is a figure which shows the structure of the vector control system in.

  In the twentieth embodiment, the field winding control device 200A stops energizing the field winding 18 until braking by the brake of the rotating electrical machine 1009 with brake is applied, and the field rotating core 90 is On the other hand, the armature winding control device 210 is different from the nineteenth embodiment in that the armature winding control device 210 controls the amplitude and phase of the armature current supplied to the armature winding 7 so that the necessary torque M can be generated. .

As shown in FIG. 46, the vector control system in the twentieth embodiment is detected by a position detector 230 that detects the rotation angle θ of the rotating electrical machine 1009, an armature current detector 212, and an armature current detector 212. A coordinate converter 231 for converting into biaxial current vectors id and iq based on the three-phase currents iu, iv and iw and the rotation angle θ detected by the position detector 230, and a torque command value T ^*. in a iq ^* calculator 232 for calculating a iq ^* based on the basis of the calculated value based on iq ^* calculated by the current vector id and the current command value id ^* and the current vector iq and iq ^* calculator 232 voltage command value Vd ^*, an armature current controller 211 to calculate the Vq ^*, the voltage command values Vd ^*, Vq ^* and the position detector 230 voltage command value for three phases based on the rotation angle θ detected by Vu ^{*, Vv} *, and coordinate converter 233 calculates the Vw ^*, the voltage command values ^{Vu *,} Vv *, has the power converter 234 to provide the actual voltage on the basis of the Vw ^* to the rotating electric machine 1009, the .

  In this vector control system configuration, control is performed for the directions of the current id, iq (current vector) of the armature winding 7 and the interlinkage magnetic flux (magnetic flux vector) φd, φq of the armature winding 7, respectively. By performing vector control, the torque T (= φd × iq−φq × id) is controlled by controlling the current vector while keeping the magnetic flux vector constant.

  As a result, even if the field winding 18 is not energized, the necessary torque T (= (= ()) using the difference between the two-axis inductances (Ld−Lq), which is a constant representing the saliency of the field rotating core 90. Ld−Lq) × id × iq) can be generated.

  Next, the control operation of the rotating electrical machine with brake according to the twentieth embodiment will be described with reference to FIG.

  First, the field current controller 201 of the field winding control device 200 stops energization of the field winding 18 based on the stop signal, as shown in FIG. Therefore, as shown in FIG. 45B, the current of the field winding 1 is gradually reduced by an electrical time constant (R / L) determined from the resistance and inductance of the field winding 18.

Further, based on the stop signal, the rotation angle θ of the rotating electrical machine 1009 is detected by the position detector 230, and currents iu, iv, and iw for three phases are detected by the armature current detector 212. Then, the vector control described above is performed based on the rotation angles θ, the currents iu, iv, iw for the three phases, and the current command values id ^* , id ^* . Then, a predetermined voltage is applied from the power converter 234 to the rotating electrical machine 1009. Therefore, as shown in FIG. 45C, the armature current is applied to the armature winding 7 during the armature release time. Then, as shown in FIG. 45 (d), a predetermined torque M is generated in the field rotating core 90. Therefore, as shown in FIG. 40 (f), the torque M is transmitted from the field rotation core 90 to the sheave 11 during the armature release time from the stop signal, and after the armature release time elapses, the brake torque is increased. It is transmitted to the car 11 and the sheave 11 is prevented from rotating.

  According to the twentieth embodiment, the field rotating core portion 90 is in a state from when the field rotating core portion 90 is rotationally driven until the field winding 18 is deenergized until braking is applied. The torque M necessary for the operation is generated. Therefore, when the rotating electrical machine with a brake is applied to an elevator hoisting machine, torque can always be generated in the field rotating core 90, and unnecessary rotation of the sheave 11 can be prevented.

  In addition, in Embodiment 20, the case where the rotating electrical machine with brake according to Embodiment 15 is controlled has been described. However, for example, the same effect can be obtained by controlling the rotating electrical machine with brake according to Embodiment 1. Is obtained.

Embodiment 21. FIG.
FIG. 47 is a diagram showing the configuration of the control device for the braking system in the rotating electrical machine with brake according to Embodiment 21 of the present invention.

  In FIG. 47, the control device 240 obtains a differential value by differentiating the current detected by the current detector 241 with time, as a current detector 241 that detects the current flowing through the field winding 18. A differentiator (differentiating circuit) 242 and a voltage controller 243 as voltage control means for controlling a voltage applied to the field winding 18 using the current differential value 242 and the like. This control device 240 opposes the contacted part, the movable part that moves relative to the contacted part, the spring that biases and contacts the movable part to the contacted part, and the biasing force of the spring. The present invention is used for controlling a braking system including an electromagnet that separates a movable part from a contacted part. For example, when this control device 240 is applied to the braking system of the rotating electrical machine with brake 1000 according to the first embodiment, the contacted portion corresponds to the “second bottom portion 10a” and the movable portion is the “second fixed core block 17”. The spring and the electromagnet correspond to the “compression coil spring 21” and the “first fixed core block 16”, respectively.

  Next, the control of the rotating electrical machine with a brake according to the first embodiment by the control device 240 will be described with reference to FIGS. 48 and 49. FIG. 48 is a graph showing the control contents of the control device of the control system in the rotating electrical machine with brake according to Embodiment 21 of the present invention. FIG. 48 (a) is controlled by the voltage controller 243. FIG. 48B shows the relationship between the current value detected by the current detector 241 and time, and FIG. 48C shows the relationship between the field winding applied voltage and time. 48 shows the relationship between the displacement of the fixed core block 17 (distance between the lining 24 and the second bottom portion 10a) and time, and FIG. 48D shows the relationship between the moving speed of the second fixed core block 17 and time (lining). 24 shows the time variation of the distance between the second bottom 10a and the second bottom 10a. FIG. 49 is a flowchart showing the control contents of the control device of the control system for the rotating electrical machine with brake according to Embodiment 21 of the present invention, and FIG. 50 shows the control system control for the rotating electrical machine with brake according to Embodiment 21 of the present invention. FIG. 51 is a flowchart showing another control content of the control device of the control system in the rotating electrical machine with brake according to Embodiment 21 of the present invention.

  In FIGS. 48A to 48D, a plurality of dotted lines crossing in the vertical direction indicate the same time. 48 (a) to 48 (d), the first fixed core block 16 sucks the second fixed core block 17 in the time zone indicated by the symbol T0 (time until time t0), and the lining is performed. The state which hold | maintains 24 spaced apart from the 2nd bottom part 10a (holding state) is shown. The voltage (holding voltage) V1 applied to the field winding 18 in this time zone T0 is applied to the field winding 18 when the lining 24 in contact with the second bottom portion 10a is separated from the second bottom portion 10a. Is set lower than the operating voltage.

  First, in the state where the holding voltage V1 is applied to the field winding 18 (at time t0), when a stop signal is input to the voltage controller 13 from an external device (not shown) (step # 101), voltage control is performed. The unit 243 linearly decreases the field winding applied voltage with time based on the first voltage control pattern P1 shown in FIG. 48A (step # 102). As a result, as shown in FIG. 48B, the current flowing through the field winding 18 gradually decreases while drawing a curve (a convex curve downward) from I1.

  The current detector 241 detects a current. The current value detected by the current detector 241 is transmitted to the differentiator 242 and time-differentiated by the differentiator 242. The differential value (d / dt) obtained by the differentiator 242 corresponds to the slope of the curve shown by (b) in FIG. 48 (indicated by an arrow in the figure). Therefore, as is apparent from the drawing, the differential value takes a “negative” value in the process in which the current value gradually decreases from I1. The second fixed core block 17 is sucked and held by the first fixed core block 16 while the differential value is a “negative” value.

  When the applied voltage of the field winding 18 is further lowered, the differential value changes from “negative” to “positive” at a certain time (time t1). This time substantially coincides when the second fixed core block 17 sucked and held by the first fixed core block 16 starts to move toward the second bottom portion 10a. The reason is that when the second fixed core block 17 starts moving toward the second bottom portion 10a, a back electromotive force is generated in the field winding 18 to increase the current, and as a result, the differential value becomes “negative”. This is because it changes from “positive” to “positive”. Strictly speaking, the time when the differential value reverses from “negative” to “positive” is slightly delayed from the time when the back electromotive force is generated (the time when the second fixed core block 17 starts to move). This is because the current due to the back electromotive force increases in a hyperbolic manner. However, this delay time is very small, and there is no problem in treating the time when the differential value is reversed from “negative” to “positive” as the time when the second fixed core block 17 starts to move.

  While the field winding applied voltage is decreasing, the voltage controller 243 compares the differential value d / dt with the reference value R1 (= 0), and the differential value changes from “negative” to “positive”. (Step # 103). When it is detected that the differential value has changed from “negative” to “positive”, the voltage control unit 243 controls the field winding applied voltage based on the second voltage control pattern P2 (step # 104). Then, the field winding applied voltage V2 when the differential value d / dt changes from “negative” to “positive” is continuously applied to the field winding 18.

  The second fixed core block 17 that has started to move away from the first fixed core block 16 when the differential value changes from “negative” to “positive” moves in accordance with the displacement curve of FIG. At this time, the speed of the moving second fixed core block 17 changes as shown in FIG. As shown in the drawing, the moving speed of the second fixed core block 17 rapidly decreases immediately before the lining 24 completely contacts the second bottom portion 10a. As a result, the increase in the counter electromotive force generated in the field winding 18 stops (see the current peak at time t2 in FIG. 48B), and the current flowing through the field winding 18 begins to decrease again. Thereby, the differential value d / dt returns from “positive” to “negative”. The voltage controller 243 compares the differential value d / dt with the reference value R2 (= 0), and detects that the differential value d / dt has changed from “positive” to “negative” (step # 105). A timer having a predetermined timer value (this timer value corresponds to [t3-t2] in FIG. 48) is started (step # 106), and the field is reached when the timer ends (time t3). The winding applied voltage is cut off (steps # 107 and # 108).

  As described above, in the twenty-first embodiment, the field winding applied voltage is moved by the second fixed core block 17 until the lining 24 starts to move away from the first fixed core block 16 and contacts the second bottom portion 10a. Is set to the voltage when it starts. Therefore, as shown in FIG. 50A, the spring force F1 for urging the second fixed core block 17 toward the second bottom portion 10a and the second fixed core block 17 are separated from the second bottom portion 10a. The difference ΔF from the electromagnet attracting force F2 is small, so that the impact sound generated when the lining 24 comes into contact with the second bottom portion 10a is very small.

  Here, the relationship between the spring force F1 and the electromagnet attractive force F2 in the comparative example in which the field winding applied voltage is linearly reduced from the time when the stop signal is input is shown in FIG. From FIG. 50B, in the comparative example in which the field winding applied voltage is linearly decreased from the time when the stop signal is input, the difference ΔF ′ between the spring force F1 and the electromagnet attracting force F2 is the present embodiment 21. It can be seen that the difference ΔF is greater than ΔF. As a result, in the comparative example, the impact sound generated when the lining 24 contacts the second bottom portion 10a is relatively large.

  In the twenty-first embodiment, the first voltage control pattern P1 reduces the field winding applied voltage in proportion to the time from time t0 to time t1, but the field winding application The voltage may be reduced stepwise or may be reduced in a curvilinear manner (i.e., with a downward convex curve or an upward convex curve). In the second voltage control pattern P2, the field winding applied voltage is held at a constant value V2 from time t1 to time t2, but from the first fixed core block 16 at time t1. The field winding applied voltage is linearly, stepwise, or curvilinearly (that is, convex downward) on the condition that the lining 24 and the like that have started to be separated are not pulled back toward the first fixed core block 16. It may be reduced or increased (in the form of a curve or a convex curve). In the most preferred mode, the voltage applied to the field winding 18 is controlled so that the force difference ΔF shown in FIG. 50B is as small as possible.

  In Embodiment 21, the reference value R1 is set to “zero”. However, the set value is not limited to “zero”, and may be any value of “positive” or “negative”. . Further, in the sixteenth embodiment, the timer is set when the first differential value d / dt reaches the second reference value. However, as shown in FIG. A timer (timer value = t3−t1) may be set immediately after the start of the voltage control pattern P2, and the field winding applied voltage may be cut off when the timer ends.

  In the twenty-first embodiment, in addition to the control means described above, although not shown, a compression coil spring is used to suppress noise when the second fixed core block 17 is energized and attracted to the field winding 18. In addition to 21, another elastic body (for example, rubber) is protruded from the end surface of the first body portion 16 a of the first fixed core block 16, whereby the impact between the first fixed core block 16 and the second fixed core block 17. May be absorbed.

  In the twenty-first embodiment, the case where the rotating electrical machine with brake according to the first embodiment is controlled has been described. However, the same effect can be obtained by controlling the rotating electrical machine with brake according to another embodiment. can get.

  DESCRIPTION OF SYMBOLS 1 Housing (fixing member), 2 frame, 3 bottom part, 4 spindle, 5, 5A armature, 6, 6A armature core, 7, 7A armature winding, 8, 8A, 8B, 70, 90, 90A Field magnet Rotating core part, 9, 9A, 71, 91 First rotating core block, 9a, 71a First bottom part, 9b, 71b, 91b Second claw-shaped magnetic pole part, 10, 10A, 10B, 72, 92 Second rotating core block 10a, 72a, 91a 2nd bottom part, 10b, 72b, 92b 2nd claw-shaped magnetic pole part, 15, 30, 45, 60, 80, 100 Field fixed iron core part, 16, 31, 46, 61, 101 1st Fixed core block, 17, 32, 47, 62, 102 Second fixed core block (brake mechanism part), 18 field winding, 21, 35, 51, 65, 74 Compression coil spring (elastic body, brake mechanism part) 24, 24a, 37, 54, 67, 77 Lining (brake mechanism part), 93, 94, 95 Connecting member, 96 Conductor, 103 Third fixed core block (brake mechanism part), 200, 200A Field winding control device 210 armature winding controller, 241 current detector, 242 differentiator, 243 voltage controller.

Claims (15)

An armature having an armature core and an armature winding wound around the armature core;
A main shaft disposed at the axial center position of the armature core;
A field rotating core portion rotatably supported by the main shaft and disposed to be opposed to the armature core with a predetermined gap;
A field fixed core disposed so as to face the armature core across the field rotating core;
It is made by winding a conductor wire in a cylindrical shape, attached to the field fixed core part, energized to generate magnetic flux, and forming a magnetic pole on the peripheral surface of the field rotating core part facing the armature core Field windings to
A brake mechanism for braking / releasing the rotation of the field rotating iron core,
When the field winding is not energized, the brake mechanism generates a braking torque by the urging force of the elastic body to brake, and when the field winding is energized, the field winding A rotating electrical machine with a brake, characterized in that the brake is released using a magnetic attractive force generated by a magnetic flux flowing through a magnetic circuit formed by energization. The field rotating core is disposed on the inner peripheral side of the armature core,
The field fixed iron core portion is fixed to the main shaft and disposed on the inner peripheral side of the field rotating iron core portion; on the inner peripheral side of the field rotating iron core portion; and A second fixed core block disposed side by side in the axial direction of the main axis of the first fixed core block and movable in the axial direction with respect to the first fixed core block;
The field winding is attached to the first fixed block and the second fixed block in an externally fitted state,
The brake mechanism is disposed between the second fixed core block, the first fixed core block, and the second fixed core block, and biases the second fixed core block toward one side in the axial direction. The elastic body, and a lining disposed on one end face of the second fixed core block in the axial direction, and abutting against the field rotating core by an urging force of the elastic body to generate a braking torque. The rotating electrical machine with a brake according to claim 1, wherein the rotating electrical machine has a brake. The field rotating core is disposed on the inner peripheral side of the armature core,
The field fixed iron core portion is fixed to the main shaft and disposed on the inner peripheral side of the field rotating core portion, and the field winding is mounted on the axially central portion in an externally fitted state. A fixed core block, and a second fixed core block disposed radially outward with respect to the first fixed core block on a radially outer side on one side in the axial direction of the first fixed core block. Prepared,
The brake mechanism is disposed between the second fixed core block, the first fixed core block, and the second fixed core block, and biases the second fixed core block radially outward. An elastic body, and a lining that is disposed on a radially outer surface of the second fixed core block and that abuts against the field rotating core portion by the urging force of the elastic body to generate a braking torque. The rotating electrical machine with a brake according to claim 1. The field rotary core is disposed on the outer peripheral side of the armature core,
The field fixed iron core portion is fixed to a fixing member and disposed on the outer peripheral side of the field rotating iron core portion; on the outer peripheral side of the field rotating iron core portion; and the first A second fixed core block disposed side by side in the axial direction of the main axis of the fixed core block, and movable in the axial direction with respect to the first fixed core block;
The field winding is mounted in an internally fitted state on the first fixed block and the second fixed block,
The brake mechanism is disposed between the second fixed core block, the first fixed core block, and the second fixed core block, and biases the second fixed core block toward one side in the axial direction. The elastic body, and a lining disposed on one end face of the second fixed core block in the axial direction, and abutting against the field rotating core by an urging force of the elastic body to generate a braking torque. The rotating electrical machine with a brake according to claim 1, wherein the rotating electrical machine has a brake. The field rotary core is disposed on the outer peripheral side of the armature core,
The field fixed iron core portion is fixed to a fixing member and disposed on the outer peripheral side of the field rotating core portion, and the field winding is mounted in the axially central portion in a fitted state. A core block; and a second fixed core block disposed radially inward of one axial direction of the first fixed core block so as to be movable in the radial direction with respect to the first fixed core block. ,
The brake mechanism is disposed between the second fixed core block, the first fixed core block, and the second fixed core block, and biases the second fixed core block radially inward. An elastic body, and a lining that is disposed on a radially inner surface of the second fixed core block and that abuts against the field rotating core portion by the urging force of the elastic body to generate a braking torque. The rotating electrical machine with a brake according to claim 1. The field rotating core is disposed on the inner peripheral side of the armature core,
The field fixed iron core portion is fixed to the main shaft and disposed on the inner peripheral side of the field rotating iron core portion; on the inner peripheral side of the field rotating iron core portion; and A second fixed core block disposed side by side in the axial direction of the main axis of the first fixed core block and movable in the axial direction with respect to the first fixed core block; and the field rotating core portion A third fixed core block disposed on the inner peripheral side and arranged side by side on the other axial side of the main shaft of the first fixed core block, and movable in the axial direction with respect to the first fixed core block; With
The field winding is attached to the first fixed core block in an externally fitted state,
The brake mechanism is disposed between the second fixed core block, the first fixed core block, and the second fixed core block, and biases the second fixed core block toward one side in the axial direction. The elastic body, the third fixed core block, the first fixed core block, and the third fixed core block disposed between the first fixed core block and the third fixed core block to urge the third fixed core block to the other side in the axial direction. The elastic body is disposed on one end face of the second fixed core block in the axial direction and on the other end face in the axial direction of the third fixed core block, and is applied to the field rotating core by the urging force of the elastic body. The rotating electrical machine with a brake according to claim 1, further comprising: a lining that contacts and generates a braking torque. The field rotary core is disposed on the outer peripheral side of the armature core,
The field fixed iron core portion is fixed to a fixing member and disposed on the outer peripheral side of the field rotating iron core portion; on the outer peripheral side of the field rotating iron core portion; and the first A second fixed core block arranged side by side in the axial direction of the main axis of the fixed core block and movable in the axial direction with respect to the first fixed core block; and an outer peripheral side of the field rotating core portion And a third fixed core block disposed side by side on the other side of the main axis of the first fixed core block and movable in the axial direction with respect to the first fixed core block,
The field winding is attached to the first fixed core block in an internally fitted state,
The brake mechanism is disposed between the second fixed core block, the first fixed core block, and the second fixed core block, and biases the second fixed core block toward one side in the axial direction. The elastic body, the third fixed core block, the first fixed core block, and the third fixed core block disposed between the first fixed core block and the third fixed core block to urge the third fixed core block to the other side in the axial direction. The elastic body is disposed on one end face of the second fixed core block in the axial direction and on the other end face in the axial direction of the third fixed core block, and is applied to the field rotating core by the urging force of the elastic body. The rotating electrical machine with a brake according to claim 1, further comprising: a lining that contacts and generates a braking torque. The field rotating iron core is
A plurality of first claw-shaped magnetic pole portions extending in the axial direction and arranged at an equiangular pitch in the circumferential direction, and the other ends in the axial direction of the plurality of first claw-shaped magnetic pole portions are connected and integrated. A first rotating core block having a disk-shaped first bottom;
A plurality of second claw-shaped magnetic pole portions that extend in the axial direction and are arranged at equiangular pitches in the circumferential direction at the center position in the circumferential direction between the adjacent first claw-shaped magnetic pole portions, and A second rotating core block having a disc-shaped second bottom portion for connecting and integrating one end of the second claw-shaped magnetic pole portion in the axial direction;
A connecting member for connecting and integrating the first rotating core block and the second rotating core block;
The first rotating core block is attached such that the first bottom portion is rotatable about the main shaft and the movement in the axial direction is restricted,
8. The second rotating core block according to claim 2, wherein the second rotating core block is attached such that the second bottom portion is rotatable about the main shaft and the movement in the axial direction is restricted. A rotating electrical machine with a brake as described in 1. The field rotating iron core is
A first rotating core block that extends in the axial direction and is magnetically connected and integrated with the other axial end of the plurality of first claw-shaped magnetic pole portions arranged in an equiangular pitch in the circumferential direction;
A plurality of second claw-shaped magnetic pole portions that extend in the axial direction and are arranged at equiangular pitches in the circumferential direction at the circumferential center positions of the adjacent first claw-shaped magnetic pole portions, and the plurality of second claw-shaped magnetic pole portions, respectively. A second rotating core block having a disc-shaped second bottom for connecting and integrating one axial end of the two-claw magnetic pole part;
A connecting member for connecting and integrating the first rotating core block and the second rotating core block;
8. The method according to claim 2, wherein the second bottom portion is attached to the main shaft so that the second bottom portion can rotate and the movement in the axial direction is restricted, and is cantilevered on the main shaft. The rotating electrical machine with a brake according to the item. The connecting member is disposed in at least one of a circumferential gap and an axial gap between the first rotating core block and the second rotating core block, and at least a part of the connecting member is the field winding. Composed of magnets magnetized in a direction that reinforces the magnetic flux that flows through the magnetic circuit that is formed when current is passed through
A field winding control device for controlling the current applied to the field winding to be cut off based on a stop signal for operating the brake mechanism section;
Based on the stop signal, a current necessary for generating a torque in the field rotating core is applied to the armature winding, and after the lining contacts the field rotating core, the armature The rotary electric machine with a brake according to claim 8 or 9, further comprising an armature winding control device that controls the current applied to the winding to be cut off. Conductor short-circuited by itself, arranged to interlink with the magnetic flux flowing through the magnetic circuit formed by energizing the field winding, in at least one of the first rotating core block and the rotating core block; ,
A field winding control device for controlling the current applied to the field winding to be cut off based on a stop signal for operating the brake mechanism section;
Based on the stop signal, a current necessary for generating a torque in the field rotating core is applied to the armature winding, and after the lining contacts the field rotating core, the armature The rotary electric machine with a brake according to claim 8 or 9, further comprising an armature winding control device that controls the current applied to the winding to be cut off. A cylindrical frame, and a bottomed cylindrical shape made of a bottom portion, and further comprising a housing in which the main shaft extends coaxially from the axis of the bottom portion,
The armature is supported by the housing by fixing the armature core to the frame in an internally fitted state,
The field rotating iron core is
A plurality of first claw-shaped magnetic pole portions extending in the axial direction and arranged at an equiangular pitch in the circumferential direction, and the other ends in the axial direction of the plurality of first claw-shaped magnetic pole portions are connected and integrated. A first rotating core block having a disk-shaped first bottom;
A plurality of second claw-shaped magnetic pole portions that extend in the axial direction and are arranged at equiangular pitches in the circumferential direction at the center position in the circumferential direction between the adjacent first claw-shaped magnetic pole portions, and A second rotating core block having a disk-shaped second bottom portion for connecting and integrating one end of the second claw-shaped magnetic pole portion in the axial direction;
The first rotating core block is attached to the main shaft so as to be rotatable and axially movable with the first bottom facing the bottom, and the second rotating core block has the second bottom attached to the main shaft. Is mounted on the inner peripheral side of the armature core, and is attached so that the movement in the axial direction is restricted.
The field fixed iron core is mounted on the axially central portion of the field winding, and is fixed to the main shaft and disposed on the inner peripheral side of the field rotating iron core.
The brake mechanism is disposed between the first rotating core block, the first rotating core block, and the second rotating core block, and biases the first rotating core block toward the bottom side. An elastic body; and a lining that is disposed on a surface of the bottom portion on the first bottom portion side and that generates a braking torque by pressing the first bottom portion by an urging force of the elastic body. The rotating electrical machine with a brake according to claim 1. Based on a stop signal for operating the brake mechanism, a voltage applied to the field winding is lower than a voltage before receiving the stop signal, and the lining is applied to the field winding. A field winding control device for controlling the voltage applied to the field winding after being in contact with the rotating iron core; and
Based on the stop signal, a current necessary for generating a torque in the field rotating core is applied to the armature winding, and after the lining contacts the field rotating core, the armature The rotating electrical machine with a brake according to claim 1, further comprising: an armature winding control device that controls the current applied to the winding to be cut off. A field winding control device for controlling the voltage applied to the field winding to be cut off based on a stop signal for operating the brake mechanism;
Based on the stop signal, after applying current of amplitude and phase necessary for generating torque in the field rotating core to the armature winding, the lining contacts the field rotating core. The rotary electric machine with brake according to claim 1, further comprising: an armature winding control device that controls the current applied to the armature winding to be cut off. Current detection means for detecting a current applied to the field winding;
Means for differentiating the current value detected by the current detection means to obtain a differential value;
The rotating electrical machine with a brake according to claim 1, further comprising voltage control means for controlling a voltage applied to the field winding based on the differential value.

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