JP2014190531A - Braking device and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a braking device that allows manufacturing efficiency to be improved.SOLUTION: A braking device comprises: a fixed core 91 including an internal pole core 911, external pole cores 912 provided around the internal pole core 911, and a connecting part 913 provided along the internal pole core 911 and the external pole cores 912; and a bobbin 93 that is provided on the internal pole core 911 and around which a braking coil wire is wound. The internal pole core 911 is provided detachably on the connecting part 913, and the bobbin 93 is formed integrally with the internal pole core 911.

Description

  The present invention relates to, for example, a brake device that brakes rotation of a driving sheave in an elevator hoist and a manufacturing method thereof.

  Conventionally, it has an inner pole core, a pair of outer pole cores provided around the inner pole core, and a connecting portion provided across the inner and outer pole cores. A fixed core formed integrally with the inner core, a bobbin around which the brake coil conductor is wound, and a movable core that is displaced relative to the fixed core in response to a current flowing through the brake coil conductor. There is known a brake device for an elevator hoisting machine equipped with a motor (see, for example, Patent Document 1).

International Publication No. 2007/096955

  However, since the inner core and the connecting part are integrally formed, when winding the brake coil conductor around the bobbin, insert the inner reel inside the bobbin before attaching the bobbin to the inner core. In addition, the bobbin must be mounted on the winding machine with the bobbin sandwiched between a pair of outer winding frames in the thickness direction of the bobbin, and the bobbin around which the lead wire for the brake coil is wound In the case of attaching to the pole iron core, the inner winding frame and the outer winding frame have to be removed from the bobbin, which has a problem that the manufacturing efficiency of the brake device is poor.

  This invention provides the brake device which can improve manufacturing efficiency, and its manufacturing method.

  The brake device according to the present invention includes an inner pole iron core, an outer pole iron core provided around the inner pole iron core, a fixed iron core having a connecting portion provided across the inner pole iron core and the outer pole iron core, and the inner pole iron core. And a bobbin around which a brake coil conductor is wound, and the inner core is detachably attached to the connecting portion.

  A manufacturing method of a brake device according to the present invention includes an inner core, an outer core provided around the inner core, and a fixed core having a connecting portion provided across the inner and outer cores, and A brake device manufacturing method comprising a bobbin provided on an inner pole iron core and wound with a lead wire for a brake coil, the bobbin attaching step for attaching the bobbin to the inner pole iron core, and the bobbin after the bobbin attaching step. A brake coil lead winding step for winding the brake coil lead wire, and an inner pole core attaching step for attaching the inner pole core to the connecting portion after the brake coil lead winding step are provided.

  According to the brake device of the present invention, the inner iron core, the outer iron core provided around the inner iron core, and the fixed iron core having the connecting portion provided across the inner iron core and the outer iron core, A bobbin provided with a brake coil lead wire is provided on the pole iron core, and the inner pole iron core is detachably provided at the connecting portion, so that the inner pole iron core is inserted inside the bobbin and wound. A bobbin can be attached to the wire machine. This eliminates the need for attaching and detaching the inner winding frame and the outer winding frame to the bobbin when the brake coil conductor is wound around the bobbin. As a result, the manufacturing efficiency of the brake device can be improved.

  According to the method for manufacturing a brake device according to the present invention, a bobbin attaching step for attaching the bobbin to the inner core, a brake coil lead winding step for winding the brake coil lead around the bobbin after the bobbin attaching step, After the coil wire winding process, it is equipped with an inner pole core mounting process that attaches the inner pole core to the connecting part, so the bobbin is mounted on the winding machine with the inner pole core inserted inside the bobbin. Can do. This eliminates the need for attaching and detaching the inner winding frame and the outer winding frame to the bobbin when the brake coil conductor is wound around the bobbin. As a result, the manufacturing efficiency of the brake device can be improved.

It is a sectional side view which shows the elevator hoisting machine which concerns on Embodiment 1 of this invention. It is arrow sectional drawing along the II-II line | wire of FIG. It is a perspective view which shows the brake device for elevator hoists of FIG. It is arrow sectional drawing along the IV-IV line of FIG. It is a perspective view which shows the outer pole iron core of FIG. 3, and a connection part. It is a perspective view which shows the inner pole iron core of FIG. It is a perspective view which shows the inner pole iron core and bobbin of FIG.

Embodiment 1 FIG.
1 is a side sectional view showing an elevator hoist according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view taken along the line II-II in FIG. In the figure, the elevator hoisting machine includes a bowl-shaped outer frame 1, a bearing 2 attached to the outer frame 1, a disk-shaped rotor 3 attached to the outer frame 1 via the bearing 2, and a rotor. And a sheave 4 connected to 3. The elevator hoist includes a cylindrical stator 5 fixed to the outer frame 1, a stator winding 6 attached to the stator 5, a permanent magnet 7 fixed to the rotor 3, And a cover 8 provided on the frame 1. The elevator hoisting machine also includes an elevator hoisting machine brake device (braking device) 9 (FIG. 2) that brakes the rotor 3.

  The outer frame 1 is provided on a shaft 11, one end portion of the shaft 11, a disk portion 12 extending radially outward from the shaft 11, and a peripheral portion of the disk portion 12, and an inner peripheral surface is an outer periphery of the shaft 11. And a cylindrical portion 13 facing the surface.

  The bearing 2 is attached to the shaft 11 such that the shaft 11 is inserted inside the bearing 2.

  The rotor 3 is formed with a through hole 31 (FIG. 2) into which the bearing 2 is inserted inside the rotor 3. The rotor 3 includes an inner cylindrical portion 32 that is attached to the outside of the bearing 2 so that the axis thereof is arranged on the same straight line as the axis of the shaft 11, and the disk portion 12 of both axial ends of the inner cylindrical portion 32. Is provided at one end in the axial direction at a position farther from the disk, and is provided at a disk part 33 extending radially outward from the inner cylindrical part 32, and at a peripheral part of the disk part 33, and from the disk part 33 toward the disk part 12. And an outer cylindrical portion 34 extending. The rotor 3 is rotatable about the shaft 11 with respect to the shaft 11. The inner peripheral surface of the outer cylindrical portion 34 of the rotor 3 is a braking surface 35 that is pressed by the elevator hoisting machine brake device 9.

  The sheave 4 is formed integrally with the disk portion 33 of the rotor 3 such that the axis is arranged on the same straight line as the axis of the shaft 11. Therefore, the sheave 4 rotates in conjunction with the rotation of the rotor 3.

  The stator 5 is fixed to the cylindrical portion 13 so that the outer peripheral surface faces the inner peripheral surface of the cylindrical portion 13. The stator 5 generates a magnetic field when a current flows through the stator winding 6.

  The permanent magnet 7 is fixed to the outer cylindrical portion 34 of the rotor 3 so as to face the inner peripheral surface of the stator 5. A magnetic force is generated between the stator 5 and the permanent magnet 7 by generating a magnetic field in the stator 5. The rotor 3 is rotated by the magnetic force generated between the stator 5 and the permanent magnet 7.

  The stator 5, the stator winding 6 and the permanent magnet 7 constitute an electric motor. When the electric motor is driven, the rotor 3 rotates, and the sheave 4 rotates in conjunction with the rotation of the rotor 3.

  The cover 8 is provided at one end portion in the axial direction at a position farther from the disk portion 12 in both axial end portions of the cylindrical portion 13. The cover 8 extends from the cylindrical portion 13 toward the sheave 4. The cover 8 is disposed so that the stator 5, the stator winding 6 and the permanent magnet 7 are sandwiched between the cover 8 and the disk portion 12 of the outer frame 1.

  The elevator hoisting machine brake device 9 is disposed between the inner cylindrical portion 32 and the outer cylindrical portion 34. The elevator hoisting machine brake device 9 is displaced between a braking position at which the braking surface 35 is pressed from the radially inner side and a release position at which the braking surface 35 is separated from the braking surface 35 toward the radially inner side. When the position of the elevator hoisting machine brake device 9 is the braking position, the rotor 3 and the sheave 4 are braked by the elevator hoisting machine brake device 9 and stopped. Moreover, the rotor 3 and the sheave 4 are rotated by driving of the electric motor when the position of the elevator hoisting machine brake device 9 is the release position.

  A rope (not shown) is wound around the sheave 4. A cage (not shown) is connected to one end of the rope, and a counterweight (not shown) is connected to the other end of the rope. When the electric motor is driven and the position of the elevator hoisting machine brake device 9 is the release position, the car 3 and the counterweight are lifted up and down (not shown) by rotating the rotor 3 and the sheave 4. Z)). When energization to the electric motor is interrupted and the position of the elevator hoisting machine brake device 9 is the braking position, the car and the counterweight are kept stopped.

  3 is a perspective view showing the elevator hoisting machine brake device 9 of FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. In the drawing, the elevator hoisting machine brake device 9 includes a fixed iron core 91 fixed to the outer frame 1 (FIG. 1), a movable iron core 92 provided to face the fixed iron core 91, and a fixed iron core 91. The attached bobbin 93 (FIG. 4) and the brake coil 94 (FIG. 4) provided in the bobbin 93 and comprised by winding the lead wire for brake coils around the bobbin 93 are provided. In FIG. 3, the bobbin 93 and the brake coil 94 are omitted.

  The fixed iron core 91 includes a rectangular parallelepiped inner pole core 911, a pair of outer pole iron cores 912 provided around the inner pole iron core 911, and a connecting portion provided across the inner pole iron core 911 and the outer pole iron core 912. 913. The outer pole iron core 912 is disposed so as to sandwich the inner pole iron core 911. The connecting portion 913 is provided across the pair of outer pole iron cores 912.

  FIG. 5 is a perspective view showing the outer pole iron core 912 and the connecting portion 913 of FIG. The outer pole iron core 912 is fixed to the connecting portion 913.

  FIG. 6 is a perspective view showing the inner core 911 of FIG. The inner core 911 is detachable from the connecting portion 913 (FIG. 3). The inner core 911 is attached to the connecting portion 913 using a bolt (not shown). The inner core 911 is not limited to using bolts, and may be attached to the connecting portion 913 by other detachable methods. The inner pole iron core 911 is formed so that the four corners are rounded when viewed from above. A pair of through holes 914 extending in the height direction are formed in the inner pole iron core 911. A concave portion 915 into which a part of the bobbin 93 enters when the bobbin 93 is formed integrally with the inner pole iron core 911 is formed on a surface of the inner pole iron core 911 facing the bobbin 93 (FIG. 4).

  FIG. 7 is a perspective view showing the inner iron core 911 and the bobbin 93 of FIG. The bobbin 93 is formed integrally with the inner pole iron core 911. A part of the bobbin 93 enters the recess 915 of the inner pole iron core 911 when the bobbin 93 is formed integrally with the inner pole iron core 911. As a result, the bobbin 93 is prevented from falling off from the inner pole iron core 911.

  Next, a manufacturing method of the elevator hoisting machine brake device 9 will be described. First, the bobbin 93 is formed integrally with the inner pole iron core 911. Thereby, the bobbin 93 is attached to the inner pole iron core 911 (bobbin attachment process).

  After the bobbin mounting step, the brake coil conductor is wound around the bobbin 93 (brake coil conductor winding step). As a result, the brake coil 94 is attached to the bobbin 93.

  After the brake coil conducting wire winding step, the inner pole core 911 is attached to the connecting portion 913 using a bolt (inner pole core attaching step). Thereafter, the movable iron core 92 is attached to the fixed iron core 91. The manufacture of the elevator hoisting machine brake device 9 is thus completed.

  As described above, according to the elevator hoisting machine brake device 9 according to the first embodiment of the present invention, the inner pole iron core 911, the outer pole iron core 912 provided around the inner pole iron core 911, and the inner pole iron core. A fixed iron core 91 having a connecting portion 913 provided across the outer pole iron core 912 and an outer pole iron core 912; and a bobbin 93 provided on the inner pole iron core 911 and wound with a brake coil lead wire. Since the connecting portion 913 is detachably provided, the bobbin 93 can be attached to the winding machine with the inner pole iron core 911 inserted inside the bobbin 93. This eliminates the need to attach and detach the inner winding frame and the outer winding frame to the bobbin 93 when winding the brake coil conductor around the bobbin 93. As a result, the time for winding the brake coil conductor around the bobbin 93 is shortened, and the manufacturing efficiency of the elevator hoisting brake device 9 can be improved. Further, when the brake coil conductor is wound around the bobbin 93, it is not necessary to attach and detach the inner winding frame and the outer winding frame to the bobbin 93. Therefore, the insulation performance of the bobbin 93 can be improved without keeping the dimensional tolerance of the bobbin 93 severe. Can be improved.

  Further, since the bobbin 93 is formed integrally with the inner pole iron core 911, the bobbin 93 can be attached to the inner pole iron core 911 simultaneously with the formation of the bobbin 93. Thereby, the manufacturing efficiency of the brake device 9 for elevator hoists can be improved. Further, since the bobbin 93 is formed integrally with the inner pole iron core 911, there is no need to attach the bobbin 93 to the inner pole iron core 911 after the bobbin 93 is formed. The insulation performance of 93 can be improved.

  In addition, a concave portion 915 into which a part of the bobbin 93 enters when the bobbin 93 is formed integrally with the inner pole iron core 911 is formed on the surface of the inner pole iron core 911 facing the bobbin 93. When formed integrally with the inner pole iron core 911, a part of the bobbin 93 can be inserted. As a result, it is possible to prevent the bobbin 93 from falling out of the inner pole iron core 911. Since it is not necessary to restrict the shape of the bobbin 93 in order to prevent the bobbin 93 from falling off the inner pole iron core 911, the shape of the bobbin 93 can be simplified.

  Moreover, according to the manufacturing method of the elevator hoisting machine brake device 9 according to Embodiment 1 of the present invention, the bobbin 93 is attached to the inner core 911, and the bobbin 93 is braked after the bobbin attaching step. Since there is provided a brake coil lead winding step for winding the coil lead and a brake coil lead winding step, and an inner pole core attaching step for attaching the inner pole core 911 to the connecting portion 913. The bobbin 93 can be attached to the winding machine with the inner pole core 911 inserted inside. This eliminates the need to attach and detach the inner winding frame and the outer winding frame to the bobbin 93 when winding the brake coil conductor around the bobbin 93. As a result, the time for winding the brake coil conductor around the bobbin 93 is shortened, and the manufacturing efficiency of the elevator hoisting brake device 9 can be improved. Further, it is not necessary to remove the inner winding frame and the outer winding frame from the bobbin 93 after winding the lead wire for the brake coil around the bobbin 93, and further, the work for attaching the bobbin 93 to the inner pole iron core 911 is eliminated. The insulation performance of the bobbin 93 can be improved without keeping the dimensional tolerance severe.

  In the first embodiment, the elevator hoisting brake device 9 is described as an example of the brake device. However, the present invention is not limited to this, and other brake devices may be used.

  Further, in the first embodiment, the configuration in which the elevator hoisting machine brake device 9 brakes the rotor 3 by pressing the rotor 3 from the radially inner side has been described. The mechanical brake device 9 may be configured to brake the rotor 3 by pressing from the outside in the radial direction of the rotor 3, or may be configured to brake the rotor 3 by sandwiching a brake disk. Good.

  DESCRIPTION OF SYMBOLS 1 Outer frame, 2 Bearing, 3 Rotor, 4 Sheave, 5 Stator, 6 Stator winding, 7 Permanent magnet, 8 Cover, 9 Elevator hoisting machine brake device (brake device), 11 shaft, 12 disc Part, 13 cylindrical part, 31 through-hole, 32 inner cylindrical part, 33 disk part, 34 outer cylindrical part, 35 braking surface, 91 fixed iron core, 92 movable iron core, 93 bobbin, 94 brake coil, 911 inner pole iron core, 912 outside Polar core, 913 connecting portion, 914 through hole, 915 recess.

Claims (4)

An inner iron core, an outer iron core provided around the inner iron core, and a fixed iron core having a connecting portion provided across the inner iron core and the outer iron core;
A bobbin provided on the inner core and wound with a lead wire for a brake coil;
The brake apparatus according to claim 1, wherein the inner core is detachably attached to the connecting portion.   The brake device according to claim 1, wherein the bobbin is formed integrally with the inner pole iron core.   3. A concave portion into which a part of the bobbin enters when the bobbin is formed integrally with the inner pole core is formed on a surface of the inner pole core facing the bobbin. Brake device according to claim 1. An inner pole core, an outer pole core provided around the inner pole core and a fixed core having a connecting portion provided across the inner pole core and the outer pole core; and provided in the inner pole core; A method of manufacturing a brake device including a bobbin around which a lead wire for a brake coil is wound,
A bobbin attaching step for attaching the bobbin to the inner core;
After the bobbin attaching step, a brake coil lead winding step of winding the brake coil lead around the bobbin;
A brake device manufacturing method comprising: an inner pole iron core attaching step of attaching the inner pole iron core to the connecting portion after the conductor winding step for the brake coil.

Images