JP2006143469A - Hoisting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure strength, by forming an opposite end support structure of a shaft, when installing a hoising machine body, while improving assembling workability and inspection workability, by forming the hoising machine body into a cantilever type structure of the shaft capable of self-standing. <P>SOLUTION: This hoisting machine has a rotor member 2 rotatably supported by a fixed shaft 6 extended as a cantilever from a stator member 1, and has a regulating member 101 arranged on the free end side of the fixed shaft 6 and regulating deflection of the fixed shaft 6. The stator member 1 has a stator yoke 7 extended toward the rotor member 2 from a stator frame body 5 and a stator 8 for generating a magnetic flux passing through the stator yoke 7. The rotor member 2 has a rotor frame body 10 for integrally arranging a sheave part 15 in an outer peripheral part, a rotor yoke 11 extended toward the stator member 1 from the rotor frame body 10 and forming a magnetic circuit together with the stator yoke 7, and a rotor 12 arranged in a position opposed to the stator 8 of a rotor yoke 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of a hoisting machine, for example, a structure of a hoisting machine for a traction type elevator.

  Conventionally, there has been a hoisting machine in which an electric motor having an abduction rotor and a sheave are directly connected (for example, see Patent Document 1). There, an abduction type rotor with one axial side surface opened, a stator provided on the inside facing the abduction type rotor, and supporting the stator and opening the abduction type rotor The frame is arranged so that the side is hermetically sealed, and the rotating shaft that directly connects the outer rotor and the sheave is provided, and the rotating shaft is supported by a bearing provided on the frame and a bearing provided on the opposite side of the sheave.

  In addition, as a conventional hoisting machine, a rotating body having a rope groove on the outer peripheral surface and having a recess formed on the side plate side end surface is attached to a support shaft laid between the support base and the side plate. An encoder is disposed in the concave portion of the rotating body, a permanent magnet is disposed on the outer peripheral surface of the rotating body, and a stator is disposed on the inner peripheral surface of the housing at a position facing the permanent magnet ( For example, see Patent Document 2).

Japanese Patent Laid-Open No. 11-079626 (paragraph [0009], FIG. 1) JP 2002-265172 A (paragraph [0010], FIG. 1)

  The above-described conventional hoisting machine has a shaft-supported structure that receives the shaft that supports the sheave at both ends, assuming that an excessive load is applied to the sheave where the suspension rope is suspended in an emergency. .

  In particular, in an elevator hoisting machine, in an emergency such as a power failure, an excessive load may act on the sheave part of the hoisting machine in order to stop the car suddenly. For this reason, the hoisting machine needs to ensure the strength that can withstand the emergency load. On the other hand, as a structure of the hoisting machine, adopting a cantilever support of the shaft leads to cost reduction. For example, since the heavy hoisting machine parts can be horizontally placed and assembled, the assembling work is facilitated. Further, since the thickness can be reduced and the weight is reduced, the cost can be reduced by material costs and installation costs. In the case of an elevator with a low head, the car speed is low and the load is small, so the suspension load acting on the hoisting machine is small, and even if it is cantilevered, the hoisting machine outer dimensions or shaft diameter is relatively small. Even strength can be secured. However, when an elevator for middle and high heads such as a middle-rise building or a high-rise building is used, the car speed becomes high and the load capacity becomes large, so that the suspension load acting on the hoisting machine becomes large. For this reason, when it is assumed that a suspension load exceeding the rating acts in an emergency, the cantilever structure of the shaft may not ensure the strength. In this case, a high-speed elevator hoisting machine having a large load capacity often employs a shaft both-end support to ensure strength.

  However, the hoisting machine that supports both ends of the shaft has a problem that the shaft length of the hoisting machine becomes long, so that labor is required for processing, equipment transportation, and installation, and the cost increases. In addition, a hoisting machine with a rotating shaft requires heavy objects such as a rotor and a stator to be inserted and assembled from both sides of the hoisting machine while being suspended by a crane. Since it involves dangerous work, there is a problem that the assembly cost becomes high. In addition, when performing a load test to check the rotational performance of the hoisting machine, it is difficult to install test couplings and measurement parts, and the load test takes a lot of time and the inspection cost increases. was there.

  The present invention has been made to solve the above-mentioned problems, and the hoisting machine main body has a self-supporting shaft cantilever structure so that the hoisting machine main body can be assembled and inspected. When installing the hoisting machine main body, it is possible to secure the strength even if a load exceeding the rating is applied to the sheave in the event of an emergency by adopting a shaft-supported structure.

  A hoisting machine according to the present invention includes a stator member, a fixed shaft that is cantilevered from the stator member, a rotor member that is rotatably supported by the fixed shaft, and deflection or rotation of the fixed shaft. The stator member is provided on the stator yoke, a stator frame, a stator yoke extending from the stator frame toward the rotor member, and a stator member. The rotor member is configured to generate a magnetic flux passing through the stator yoke, and the rotor member includes a rotor frame body integrally provided with a sheave portion on an outer peripheral portion, and the rotor frame body toward the stator member. A rotor yoke that extends and forms a magnetic circuit together with the stator yoke, and a rotor provided at a position facing the stator of the rotor yoke are provided.

  The method of manufacturing a hoisting machine main body according to the present invention includes a stator frame, a stator yoke extending from the stator frame, and a magnetic flux provided on the stator yoke and passing through the stator yoke. And a rotor frame having a sheave portion integrally provided on an outer peripheral portion, and a rotor frame. A rotor yoke that extends from the stator to the stator member and forms a magnetic circuit with the stator yoke, and a rotor member that includes a rotor provided at a position facing the stator of the rotor yoke. It consists of the process of supporting on a shaft so that rotation is possible.

  According to the hoisting machine of the present invention, since the regulating member that regulates the deflection of the fixed shaft and the inclination of the rotor frame is provided, the load exceeding the rating acts on the sheave and the fixed shaft is greatly bent. However, the load acting on the sheave can be shared by the regulating member that regulates the deflection. By adopting such a structure, a lightweight and high strength hoisting machine can be obtained.

  In addition, when performing a load test of a motor or the like, the test device can be easily attached to the rotor member by removing the regulating member that regulates the deflection of the fixed shaft or the inclination of the rotor member. The cost required for this can be reduced.

  Furthermore, when the hoisting machine main body has a shaft cantilever structure, it is necessary to insert and assemble parts from both sides of the frame body. According to the present invention, the hoisting machine main body is a self-supporting shaft cantilever type. Since it has a structure, it is possible to assemble from one direction, and it is not necessary to invert heavy objects for assembly, and processing and assembly costs can be reduced.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

Embodiment 1 FIG.
1 is a cross-sectional view showing a hoist according to Embodiment 1 of the present invention. The hoist according to the present embodiment includes a stator member 1, a fixed shaft 6 that is cantilevered from the stator member 1, and a rotor member 2 that is rotatably supported by the fixed shaft 6. And a regulating member 100 that is provided on the free end side of the fixed shaft 6 and regulates the deflection of the fixed shaft 6.

  The stator member 1 includes a stator frame 5, a stator yoke 7 that extends toward the rotor member 2 at the outer peripheral portion of the stator frame 5, and a stator yoke 7 that is fixed to the stator member 1. A stator 8 for generating magnetic flux passing through the child yoke 7 is provided. More specifically, the stator yoke 7 has an L-shaped annular section having an annular plate portion 22 extending radially outward from the stator frame 5 and a cylindrical portion 23 extending axially from the annular plate portion 22. It consists of members. The stator 8 includes a stator core 8a, a stator winding 8b, and a bobbin 8c.

  As will be described in detail later with reference to FIGS. 2 and 3, a brake device 45 is installed on the inner peripheral side of the stator frame 5, and cantilevered from the central position of the brake device 45 toward the rotor member 2. A fixed shaft 6 is extended to the end.

  The rotor member 2 is rotatably supported on the fixed shaft 6 by bearings 9A and 9B. The bearing 9A and the bearing 9B are fixed by a bearing nut 17. The rotor member 2 is adjacent to the stator frame 5 in the axial direction and extends in the radial direction. The rotor member 2 extends from the rotor frame 10 toward the stator member 1 and extends to the stator member 1 side. A rotor yoke 11 that forms a magnetic circuit together with the stator yoke 7 and a permanent magnet 12 as a rotor provided on the rotor yoke 11 at a position that can face the stator 8 are provided. Further, the rotor frame 10 includes a sheave portion 15 provided integrally on the outer peripheral portion thereof, and has a rope groove 15 </ b> A on which an unillustrated rope is spanned on the outer peripheral surface of the sheave portion 15.

  Next, the brake device 45 installed on the inner peripheral side of the stator frame 5 will be described. 2 is an enlarged cross-sectional view of the brake device of the hoisting machine shown in FIG. 1, and FIG. 3 is a side view of the hoisting machine shown in FIG. 1 as viewed from the brake device side (arrow III direction). 1 shows a cross-sectional view taken along the line II of FIG.

  2 and 3, the brake device 45 includes an armature 46 fastened to the inner peripheral portion of the stator frame 5, an electromagnetic coil 47 provided at a predetermined position of the armature 46, and an electromagnetic force of the electromagnetic coil 47. Plunger 48 that is attracted by force to become a brake release position, a compression spring 49 that presses the plunger 48 toward the brake braking position, a braking shaft 50 that is provided integrally with the plunger 48, and an outer periphery of the braking shaft 50 The shoe 51 is provided on the side and pressed against the braking surface, which is the inner peripheral surface of the rotor yoke 11 of the rotor member 2. Reference numeral 52 denotes a lining material disposed on the outer peripheral surface of the shoe 51.

  In the brake device 45, when a current is passed through the electromagnetic coil 47, the plunger 48 is attracted by the electromagnetic force generated by the electromagnetic coil 47, and the shoe 51 is separated from the inner peripheral surface of the rotor yoke 11 of the rotor member 2. The brake is released. On the other hand, when the current to the electromagnetic coil 47 is interrupted, the plunger 48 is pressed by the compression spring 49, the shoe 51 is pressed against the inner peripheral surface of the rotor yoke 11 of the rotor member 2, and the brake is applied.

  In the present embodiment, a detachable support base 101 installed on the fixed structure 100 when the hoisting machine is installed is disposed on the free end side of the fixed shaft 6. The support base 101 supports the free end side of the fixed shaft 6 and serves as a regulating member that regulates the deflection of the fixed shaft 6.

  Furthermore, in the present embodiment, an encoder 200 as a rotation detector (a detector that converts mechanical rotational displacement into an electrical signal) is disposed between the rotor frame 10 and the support base 101 that is a restricting member. ing. The encoder 200 is fastened to the rotor frame 10 and is rotatably supported on the fixed shaft 6 by a bearing, and a rotation detection plate provided on the fixed shaft 6 side of the encoder housing 201. 202, an encoder main body 204 installed on the stator shaft 6 side, and a light emitting element 203A and a light receiving element 203B installed on the encoder main body 204 facing a slit position (not shown) of the rotation detection plate 202. Yes.

  Next, a method for assembling and installing the hoist according to the present embodiment will be described. In the factory, first, a brake device 45 in which the fixed shaft 6 is provided in a cantilever manner is fastened to the inner peripheral portion of the stator member 1 in which the stator 8 is installed on the stator yoke 7. Then, the rotor member 2 is rotatably supported on the fixed shaft 6 via bearings 9A and 9B. Then, the encoder 200 is attached to the fixed shaft 6 and the rotor frame 10, and the hoisting machine main body is assembled. Thus, at the time of factory assembly, the hoisting machine body is transported to the installation site in a state where the fixed shaft 6 is in a cantilever support state by the stator member 1. At this time, the hoisting machine main body is designed so that it can stand on its own in a cantilevered state, and it is not necessary to hold the hoisting machine so as not to fall over at the installation location. Thereafter, a support base 101 is installed on the fixed structure 100 at the installation site, and the support base 101 supports the free end side of the fixed shaft 6 of the hoisting machine body. As a result, the fixed shaft 6 provided in the hoisting machine main body is in a both-end support state, and the hoisting machine installation is completed.

  FIG. 4 is a diagram showing a load testing machine for evaluating the performance of the hoisting machine. As shown in FIG. 4, the load tester 300 has a structure in which a torque meter 302 and a driving motor 303 are installed on a mounting base 301 and are fastened to each other by a coupling 304. A load side shaft 306 is fastened by a coupling 306 on the load side of the torque meter 302, and a flange 207 is installed at the tip of the load side shaft 306. When performing the load test of the hoisting machine, as shown in FIG. 4, the support base 101 that is a regulating member is removed, and the hoisting machine main body is laid down on the base 400. Next, the flange 307 is fastened from the axial direction to the rotor frame 10 integrated with the sheave 15. Here, the flange 307 and the hoisting machine main body can be easily fastened by making the base 400 or the mounting base 301 movable up and down.

  As described above, according to the hoisting machine of the present embodiment, the number of assembling steps can be reduced and the assembling cost can be reduced by assembling the hoisting machine main body up to the cantilevered support state in the factory. .

  In addition, in the hoisting machine having the shaft both-end supported structure, it is necessary to insert and assemble parts from both sides of the frame body, but according to the present embodiment, the assembly can be performed from one direction. Inverting heavy objects is eliminated, and processing and assembly costs can be reduced.

  On the other hand, when the hoisting machine is installed, the fixed shaft 6 of the hoisting machine main body is supported by the support base 101 and is in a doubly supported state. The support shaft 101 can regulate the deflection of the fixed shaft 6 that supports the sheave, and the load acting on the sheave unit 15 can be shared. By adopting such a structure, an elevator hoisting machine that is lightweight and has high strength can be obtained.

  In addition, when performing a load test of a motor or the like, the load tester can be easily attached to the sheave 15 by removing the support base 101, so that the configuration of the load tester can be simplified and the workability of the test setup can be improved. The inspection cost can be reduced.

  Furthermore, the encoder 200 can be easily replaced by removing the support base 101 which is a restricting member when the encoder 200 fails.

  Further, a brake device 45 that brakes the rotor member 2 is installed on the stator frame 5, and the fixed shaft 6 is cantilevered from the brake device 45 in the direction of the rotor member 2. The overall outer diameter can be reduced, and installation space can be saved.

  Furthermore, by integrating the fixed shaft 6 and the brake device 45, the number of parts can be reduced, and the number of assembly steps can be reduced. The fixed shaft 6 and the brake device 45 may not be integrated.

Embodiment 2. FIG.
FIG. 5 is a sectional view showing a hoist according to Embodiment 2 of the present invention. In the first embodiment, the encoder main body 204 is installed on the fixed shaft 6. In the encoder 200 according to the present embodiment, a rack 205 is installed on the outer periphery of the rotor frame 10 as shown in FIG. The rack 205 rotates as the rotor frame 10 rotates. On the other hand, an encoder main body 208 for detecting rotation is installed on a bracket 207 attached to the stator frame 5, and a gear 206 is attached to the encoder main body 208. The gear 206 and the rack 205 are arranged so as to mesh with each other, and the rotation of the rotor frame 10 allows the encoder body 208 to detect the rotation of the rotor frame 10. The encoder main body 208 may be installed not only on the top surface of the stator frame 5 but also on the bottom surface or side surface of the stator frame 5 or on the fixed structure 100 as long as it does not interfere with the suspension rope.

  According to the present embodiment, the encoder 200 can be replaced without removing the support base 101, which is a restricting member, when the encoder 200 fails, and the maintenance cost can be reduced. Further, since a commercially available encoder can be used as compared with the custom-made ring-shaped encoder of the first embodiment, the manufacturing cost can be reduced.

Embodiment 3 FIG.
6 is a sectional view showing a hoist according to Embodiment 3 of the present invention. In the encoder 200 according to the present embodiment, a bracket 211 is attached to the outer periphery of the stator member 1, and an encoder body 212 is attached to the bracket 211. A rotary roller 210 is directly connected to the encoder body 212, and the rotary roller 210 presses the outer peripheral portion of the rotor frame 10. Then, the rotation of the rotor frame 10 is detected by the encoder main body 212 via the rotation roller 210.

  According to the present embodiment, as in the second embodiment, it is possible to replace the encoder 200 without removing the support base 101 that is a restricting member when the encoder 200 fails, and the maintenance cost can be reduced. . Further, since a commercially available encoder can be used as compared with the custom-made ring-shaped encoder of the first embodiment, the manufacturing cost can be reduced.

Embodiment 4 FIG.
7 is a sectional view showing a hoist according to Embodiment 4 of the present invention. In the encoder 200 of the present embodiment, an encoder body 221 is held by a bracket 220 installed on the fixed structure 100, and a small pulley 223 is attached to the encoder body 221. On the other hand, a large pulley 224 is fastened to the rotor frame 10 at the same axial position of the small pulley 223 and the fixed shaft 6. A belt 225 is wound around the small pulley 223 and the large pulley 224. In the encoder 200 of the present embodiment, the rotation of the rotor frame 10 is transmitted to the small pulley 223 via the large pulley 224 and the belt 225, and the rotation speed of the rotor member 2 by the encoder body 221 directly connected to the small pulley 223. And the direction of rotation is detected.

  According to the present embodiment, as in the second embodiment, it is possible to replace the encoder 200 without removing the support base 101 that is a restricting member when the encoder 200 is out of order, thereby reducing maintenance costs. it can. Further, since a commercially available encoder can be used as compared with the custom-made ring-shaped encoder of the first embodiment, the manufacturing cost can be reduced.

Embodiment 5. FIG.
FIG. 8 is a sectional view showing a hoist according to Embodiment 5 of the present invention. The hoisting machine according to the present embodiment includes a stator member 1, a fixed shaft 6 extended from the stator member 1 in a cantilever manner, and rotatably supported by the fixed shaft 6 and on the outer periphery thereof. The sheave portion 15 is provided with the rotor member 2 provided integrally. The stator member 1 includes a disc portion 3 and a cylindrical portion 4 provided on the outer periphery of the disc portion 3 as a whole as a shallow dish-shaped stator frame 5 and an inner center of the stator frame 5. A cantilevered fixed shaft 6, a stator yoke 7 provided on the outer periphery of the cylindrical portion 4 of the stator frame 5, and a magnetic flux that is attached to the stator yoke 7 and passes through the stator yoke 7. And a stator 8 to be generated. The stator 8 includes a stator core 8a and a stator winding 8b.

  The rotor member 2 is rotatably supported by the bearings 9A and 9B on the fixed shaft 6, and the rotor frame 10 extends in the radial direction adjacent to the stator frame 5 in the axial direction; A rotor yoke 11 extending from the rotor frame 10 in the direction of the stator member 1 to form a magnetic circuit together with the stator yoke 7, and provided at the rotor yoke 11 at a position that can face the stator 8. A permanent magnet 12 (which is a rotor) is provided. Further, the rotor frame 10 includes a sheave portion 15 provided integrally on the outer peripheral portion thereof, and has a rope groove 15 </ b> A on which an unillustrated rope is spanned on the outer peripheral surface of the sheave portion 15.

  The stator yoke 7 is an L-shaped annular section having an annular plate portion 22 extending radially outward from the cylindrical portion 4 of the stator frame 5 and a cylindrical portion 23 extending axially from the annular plate portion 22. It is a member. The L-shaped stator yoke 7 on the stator frame 5 cooperates with the cylindrical portion 4 to form a U-shaped cross-section as a whole, and the U-shaped cross-section is formed inside the U-shaped cross-section. A stator 8 is attached. In addition, the rotor yoke 11 of the rotor member 2 is disposed together with the permanent magnet 12 between the cylindrical portion 4 and the stator 8 in the U-shaped cross section, and the permanent magnet 12 is in the radial direction with respect to the stator 8. Are arranged opposite to each other.

  In the present embodiment, the rotor frame 10 on which the sheave 15 is integrally provided is rotatably supported by the bearings 9A and 9B of the fixed shaft 6 disposed on the stator frame 5. The bearing 9A and the bearing 9B are fixed by a bearing nut 17. Furthermore, on the free end side of the fixed shaft 6, a second fixed shaft 102 attached to the support base 101 of the fixed structure 100 is installed so as to face the fixed shaft 6. The second fixed shaft 102 is disposed with a clearance with respect to the inner ring of the bearing 98 installed near the end of the rotor frame 10. The bearing 98 is fixed by an outer ring presser 99.

  In the present embodiment, when a load exceeding the rating is applied to the sheave 15, the load is applied to the fixed shaft 6 via the rotor frame 10 and the bearings 9 </ b> A and 9 </ b> B, and the fixed shaft 6 bends. For example, when a hoisting machine is installed at the top of the hoistway, a cage and a weight are suspended by a rope hung on the sheave 15, so that a downward load acts on the sheave 15 and the fixed shaft 6 bends downward. . At that time, the inner ring of the bearing 98 installed at the end of the rotor frame 10 and the second fixed shaft 102 come into contact as shown in FIG. 9, so that the second fixed shaft 102 regulates the deflection. It becomes a regulating member and a strength member, and can share the load acting on the sheave 15. By adopting such a structure, a lightweight and high strength hoisting machine can be obtained.

  Further, when carrying out a load test of the hoisting machine, if the second fixed shaft 102 is removed, the test device is easily coupled directly to the rotor frame 10 integrated with the sheave 15 by coupling. be able to. Therefore, simplification of the configuration of the test apparatus and workability of the test setup are improved, and the cost can be reduced.

  Further, in the hoisting machine having a double-sided shaft structure, it is necessary to insert parts from both sides of the frame body and assemble, but by dividing the shaft into the cantilevered fixed shaft 6 and the second fixed shaft 102, Assembling from one direction (the second fixed shaft side) becomes possible, and it is no longer necessary to invert heavy objects for assembling, and processing and assembly costs can be reduced.

  In the present embodiment, the hoisting machine having a structure in which the brake device is not installed on the inner peripheral side of the stator frame has been described. However, as described in the first embodiment, the stator frame 5 The present invention can be similarly applied to a hoisting machine having a structure in which a brake device 45 is installed on the inner peripheral side of the motor and a fixed shaft 6 is extended from the central position of the brake device 45 toward the rotor member 2 in a cantilever manner. The same applies to the following embodiments.

Embodiment 6 FIG.
10 is a sectional view showing a hoist according to Embodiment 6 of the present invention. In the fifth embodiment, the clearance between the second fixed shaft 102 and the rotating peripheral surface of the rotor frame 10 is such that the inner ring side of the bearing 98 installed on the rotor frame 10 and the second fixed shaft 102 are in contact with each other. I mentioned the case in between. In the present embodiment, as shown in FIG. 10, it is between the second fixed shaft 102 and the rotating peripheral surface of the rotor frame 10 and faces the rotor frame 10 of the second fixed shaft 102. A bearing 105 is installed at the end and fixed by a bearing nut 106, and a clearance is provided between the outer ring of the bearing 105 and the rotor frame 10. Since the other configuration is the same as that of FIG. 8, the description thereof is omitted. If configured as described above, the same effect as in the fifth embodiment can be obtained.

Embodiment 7 FIG.
FIG. 11 is a sectional view showing a hoist according to Embodiment 7 of the present invention. In the present embodiment, the support stand 130 is disposed with the outer periphery of the sheave 15 and the clearance at a position (directly below) that faces the outer peripheral surface of the sheave 15 integrated with the rotor frame 10.

  Also in the present embodiment, when a load exceeding the rating is applied to the sheave 15, the fixed shaft 6 bends greatly via the rotor frame 10 and the bearings 9A and 9B. However, in this case, when the outer peripheral surface of the sheave 15 and the support base 30 are in contact with each other, the support base 130 becomes a restricting member that restricts the deflection, and the load acting on the sheave 15 can be shared. By adopting such a structure, an elevator hoisting machine that is lightweight and has high strength can be obtained.

  Moreover, since the dimension in the depth direction of the hoisting machine can be reduced by arranging the support stand 130 at a position facing the outer peripheral surface of the sheave 15, the installation area can be reduced, and the construction cost of the machine room or hoistway is reduced. Is effective.

  Furthermore, since the fixed shaft 6 is a cantilever structure instead of a both-end support structure, one-way assembly is possible, and processing and assembly costs can be reduced.

Embodiment 8 FIG.
12 is a partial cross-sectional view of a sheave 15 and a support base 130 in a hoist according to Embodiment 8 of the present invention. In the present embodiment, as shown in FIG. 12, the surface facing the sheave 15 of the support base 130 in the seventh embodiment is formed in a convex shape 130 </ b> A along the shape of the rope.

  As described above, in the present embodiment, the surface of the support platform 130 that faces the sheave 15 is formed in the convex shape 130A along the sheave groove shape, so that the contact area between the sheave 15 and the support platform 130 is increased. Since the surface pressure can be reduced, there is an effect that the life can be extended as compared with the seventh embodiment. In addition, in FIG. 12, although the convex type 130A has shown the example in which the number of sheave grooves was formed, it may be smaller than the number of sheave grooves.

Embodiment 9 FIG.
13 is a partial cross-sectional view of a sheave 15 and a support base 130 in a hoist according to Embodiment 9 of the present invention. In the case of an emergency when the load acting on the sheave 15 is greater than expected, as shown in FIG. 13A, a cushioning material 131 such as rubber is fixed to the surface of the support stand 130 that faces the sheave 15. Thus, damage to the sheave 15 can be further suppressed. Further, as shown in FIG. 13 (b), as the cushioning material to be attached to the support stand 130, fixing the convex cushioning material 132 along the rope shape allows the contact area to be increased and the surface pressure to be reduced. The effect of suppressing damage goes up. In this case, the convex shape of the convex cushioning material 132 may be smaller than the number of sheave grooves.

Embodiment 10 FIG.
14 is a sectional view showing a hoist according to Embodiment 10 of the present invention. In the present embodiment, as shown in FIG. 14, a roller 135 is provided on the surface of the support base 130 according to the seventh embodiment that faces the sheave 15.

  According to the structure of the present embodiment, when a load is applied to the sheave 15 in an emergency, the outer periphery of the sheave 15 can be supported by the roller 135 installed on the support base 130. Further, even if the sheave 15 rotates in an emergency and the outer periphery contacts, the roller 135 also rotates, so that friction is reduced and damage to the sheave 15 can be suppressed. Further, by providing a cushioning material such as rubber on the surface of the roller 135, damage can be further suppressed.

Embodiment 11 FIG.
FIG. 15 is a sectional view showing a hoist according to Embodiment 11 of the present invention. In the present embodiment, as shown in FIG. 15, the fixed shaft 6 protrudes (overhangs) from the end of the rotor frame 10 (that is, the sheave 15), and the clearance between the free end of the fixed shaft 6 and the fixed shaft 6 is increased. The support stand 140 is installed.

  According to the present embodiment, when a load exceeding the rating acts on the sheave 15 and the deflection of the fixed shaft 6 increases, the load can be shared by the fixed shaft 6 and the support base 140 contacting each other. Therefore, a lightweight and high strength hoisting machine can be obtained. Further, since the fixed shaft 6 is not a double-supported structure, one-way assembly is possible, and processing and assembly costs can be reduced.

Embodiment 12 FIG.
FIG. 16 is a partial cross-sectional view of fixed shaft 6 and support base 140 in a hoist according to Embodiment 12 of the present invention. In the present embodiment, as shown in FIG. 12, a cushioning material 141 such as rubber is fixed to the support base 140 in the eleventh embodiment.

  According to the present embodiment, since the cushioning material 141 such as rubber is fixed to the support base 140, the effects of the above-described embodiment can be achieved, and damage to the fixed shaft 6 can be suppressed.

Embodiment 13 FIG.
FIG. 17 is a sectional view showing an elevator hoist according to Embodiment 13 of the present invention. In the present embodiment, as shown in FIG. 17, a bearing 145 is installed on the surface of the fixed shaft 6 that faces the support base 140. The support base 140 is disposed with a clearance with respect to the outer ring of the bearing 145. If constituted in this way, when a heavy load is applied to the sheave 15 and the fixed shaft 6 bends, the outer ring of the bearing 145 comes into contact with the support base 140, so that the support base 140 becomes a regulating member that regulates the deflection, The load acting on the sheave 15 can be shared. By adopting such a structure, a hoisting machine having a light weight and high strength can be obtained. Further, since the fixed shaft 6 is not a double-supported structure, one-way assembly is possible, and processing and assembly costs can be reduced.

Embodiment 14 FIG.
18 is a sectional view showing a hoist according to Embodiment 14 of the present invention. In the present embodiment, as shown in FIG. 18, the bearing 146 is installed not on the fixed shaft 6 side but on the support base 140 so that a clearance is provided between the inner ring of the bearing 146 and the fixed shaft 6. Even if configured as described above, the same effect as in the thirteenth embodiment can be obtained.

It is sectional drawing which shows the winding machine by Embodiment 1 of this invention. It is an expanded sectional view of the brake device of the hoisting machine of FIG. It is the side view which looked at the hoisting machine of FIG. 1 from the brake device side (arrow III direction). It is a conceptual diagram which shows the load testing machine for evaluating the performance of a winding machine. It is sectional drawing which shows the winding machine by Embodiment 2 of this invention. It is sectional drawing which shows the winding machine by Embodiment 3 of this invention. It is sectional drawing which shows the winding machine by Embodiment 4 of this invention. It is sectional drawing which shows the winding machine by Embodiment 5 of this invention. It is sectional drawing of the rotor frame body at the time of the load effect | action of the winding machine by Embodiment 5 of this invention, and a 2nd fixed shaft. It is sectional drawing which shows the winding machine by Embodiment 6 of this invention. It is sectional drawing which shows the winding machine by Embodiment 7 of this invention. It is a fragmentary sectional view of the sheave and the support base by Embodiment 8 of this invention. It is a fragmentary sectional view of the sheave and the support base by Embodiment 9 of this invention. It is sectional drawing which shows the winding machine by Embodiment 10 of this invention. It is sectional drawing which shows the winding machine by Embodiment 11 of this invention. It is a fragmentary sectional view of the 1st fixed axis | shaft and support stand by Embodiment 12 of this invention. It is sectional drawing which shows the winding machine by Embodiment 13 of this invention. It is sectional drawing which shows the winding machine by Embodiment 14 of this invention.

Explanation of symbols

1 Stator member, 2 Rotor member, 5 Stator frame, 6 Fixed shaft, 7 Stator yoke,
8 Stator, 10 Rotor frame, 11 Rotor yoke, 12 Permanent magnet,
45 brake device, 101, 130, 140 support base, 102 second fixed shaft,
200 Encoder.

Claims (18)

A stator member, a fixed shaft that is cantilevered from the stator member, a rotor member that is rotatably supported by the fixed shaft, a deflection of the fixed shaft, or an inclination of the rotor member. A regulating member for regulating,
The stator member includes: a stator frame; a stator yoke extending from the stator frame toward the rotor member; and a magnetic flux provided on the stator yoke and passing through the stator yoke. With a stator to generate,
The rotor member includes a rotor frame integrally provided with a sheave portion at an outer peripheral portion, and extends from the rotor frame toward the stator member to form a magnetic circuit together with the stator yoke. And a rotor provided at a position opposite to the stator of the rotor yoke. 2. A brake device that brakes the rotor member is installed on the stator frame, and the fixed shaft extends from the brake device in a cantilever direction toward the rotor member. The hoist described in 1. The hoisting machine according to claim 2, wherein the fixed shaft is integrated with the brake device. The hoisting machine according to claim 1, wherein an encoder that detects rotation of the rotor member is provided between the stator frame and the regulating member. The encoder includes an encoder body that is disposed between the rotor frame and the regulating member and is installed on the fixed shaft to detect rotation, and a rotation detection plate fastened to the rotor frame. The hoisting machine according to claim 4, wherein The encoder is installed in a rack provided on the outer periphery of the rotor frame, a gear meshing with the rack, the stator frame or a fixed structure, and the gear is connected to rotate the rotor member. The winding machine according to claim 4, further comprising an encoder body that performs detection. The encoder is installed in a state where the encoder is pressed against the outer peripheral surface of the rotor frame, and the rotor is installed on the stator frame or a fixed structure and is connected to the rotor to connect the rotor. 5. The hoist according to claim 4, further comprising an encoder main body that detects rotation of the member. The encoder includes a large pulley fixed to the rotor frame, a small pulley having a belt suspended between the large pulley, a fixed structure, and the small pulley coupled to the rotation. 5. The hoist according to claim 4, further comprising an encoder main body that detects rotation of the child member. The restricting member includes a second fixed shaft disposed to face the free end side of the fixed shaft, and a clearance is provided between the second fixed shaft and the rotating peripheral surface of the rotor frame. The hoist according to claim 1, wherein the hoist is provided. A bearing is installed between the second fixed shaft and the rotating peripheral surface of the rotor frame, and on one side of the second fixed shaft and the rotor frame. The elevator hoist according to claim 9. The hoisting machine according to claim 1, wherein the restricting member includes a support base disposed with a clearance at a position facing the outer peripheral surface of the sheave part. The hoisting machine according to claim 11, wherein a cushioning material is disposed on a surface of the support base facing the sheave. The hoist according to claim 11 or 12, wherein a convex shape along the shape of a rope is formed on a surface of the support base facing the sheave. The elevator hoisting machine according to claim 11, wherein a roller is provided on a surface of the support base facing the sheave. The said regulating member is provided with the support stand arrange | positioned with or without a clearance in the edge part side which protruded from the said rotor frame of the said fixed axis | shaft. Hoisting machine. The hoisting machine according to claim 15, wherein a cushioning material is disposed on a surface of the support base facing the fixed shaft. The restricting member includes a support base disposed with a clearance on an end side of the fixed shaft that protrudes from the rotor frame, and is between the support base and the fixed shaft. The hoisting machine according to claim 1, wherein a bearing is installed on one side of the fixed shaft. For a stator member comprising a stator frame, a stator yoke extending from the stator frame, and a stator that is provided on the stator yoke and generates a magnetic flux passing through the stator yoke Extending the fixed shaft in a cantilevered manner,
A rotor frame integrally provided with a sheave portion on the outer periphery, a rotor yoke extending from the rotor frame toward the stator member and forming a magnetic circuit with the stator yoke, The manufacturing method of the winding machine main body which consists of the process of supporting the rotor member provided with the rotor provided in the position facing the said stator of the said rotor yoke to the said fixed shaft so that rotation is possible.

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