JP2008133107A - Winch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winch device having simple and well maintainable construction for developing stable braking performance while suppressing the run-out of a brake disc during rotation. <P>SOLUTION: In the winch device, the brake disc 10 is detachably provided on the outer periphery of a casing 12 of a planetary gear reduction gear 13 in a previously integral manner, and the brake disc 10 is mounted on a flange portion 14 of a winch drum 9 so that its peripheral edge protrudes from the flange portion 14 to the outer periphery side. Thus, the planetary gear reduction gear 13 is assembled on the winch drum 9, and a braking device 11 is installed thereon which can brake or cancel the braking of the rotation of the winch drum 9 while clamping or releasing the brake disc 10 at its peripheral edge. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a winch device.

  In general, various cranes and the like are equipped with winch devices for winding and unwinding wire ropes.

  As a conventional winch device, for example, as shown in FIG. 3, an input shaft 5 of a speed reducer 4 is coupled to an output shaft 2 of a rotary drive device 1 such as a hydraulic motor or an electric motor via a coupling 3. At the same time, a winch drum 9 around which a wire rope 7 is wound and one end side is supported by a bearing 8 is connected to the output shaft 6 of the speed reducer 4, and a brake disk 10 is attached to a required portion of the outer peripheral surface of the winch drum 9. There is a configuration in which a brake device 11 is installed which can brake and release the rotation of the winch drum 9 by attaching and releasing the periphery of the brake disc 10.

For example, Patent Document 1 discloses a winch device in which a planetary gear speed reducer is incorporated in a winch drum and a brake device is provided in the planetary gear speed reducer.
JP 2003-2587 A

  However, in the conventional winch device as shown in FIG. 3, since it is necessary to form a space for attaching the brake disc 10 in the winch drum 9, the winch drum 9 is enlarged accordingly, In addition to the influence of the assembly error of the winch drum 9 provided so as to be spanned between the speed reducer 4 and the bearing 8, the influence of the manufacturing error of the winch drum 9 itself causes blurring when the brake disk 10 rotates. This has the disadvantage that it becomes difficult to obtain stable braking performance.

  Further, in the winch device disclosed in Patent Document 1, since the brake device is provided inside the planetary gear speed reducer, there is a problem that the number of parts is large, the structure is complicated, and maintenance is difficult.

  In view of such circumstances, the present invention is intended to provide a winch device that has a simple structure, good maintainability, can suppress blurring during rotation of a brake disk, and can obtain stable braking performance. To do.

The present invention relates to a rotary drive device, a planetary gear speed reducer connected to an output shaft of the rotary drive device and configured to rotate a casing, and the planetary gear speed reducer incorporated therein and rotated integrally with the casing. In a winch device comprising a winch drum arranged to be free,
A brake disc is detachably provided in advance on the outer peripheral portion of the casing of the planetary gear speed reducer so that the brake disc is integrated with the flange portion of the winch drum. A brake device capable of braking / releasing the rotation of the winch drum by attaching the planetary gear speed reducer to the winch drum by attaching it so as to overhang, and holding and releasing the peripheral edge of the brake disk. The present invention relates to a winch device that is configured to be installed.

  According to the above means, the following operation can be obtained.

  In the winch device of the present invention, a brake disk is provided in a removable manner so as to be integrated in advance on the outer peripheral part of the casing, and the brake disk is disposed on the outer peripheral side of the flange part with respect to the flange part of the winch drum. As compared with the conventional winch device, it is not necessary to form a space for mounting the brake disc in the winch drum, and it is not necessary to enlarge the winch drum, and the planetary Since the gear reducer casing is built into the winch drum, it is originally manufactured with high accuracy, so it is hardly affected by the assembly error of the winch drum or the manufacturing error of the winch drum itself. , It is difficult for blurring to occur when the brake disc rotates Ri, stable braking performance can be easily obtained.

  Further, the winch device of the present invention does not have a structure in which a brake device is provided inside the planetary gear speed reducer, unlike the winch device disclosed in Patent Document 1, so the number of parts is small and the structure is complicated. In addition, when the brake disc is worn out, it is easy to replace it and perform maintenance.

  According to the winch device of the present invention, it has a simple structure and good maintainability, and can exhibit excellent effects that it is possible to suppress blurring during rotation of the brake disk and to obtain stable braking performance. .

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show an example of an embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 3 denote the same components, and a rotary drive device 1 such as a hydraulic motor or an electric motor. A planetary gear speed reducer 13 connected to the output shaft 2 of the rotary drive device 1 via a coupling 3 and configured to rotate the casing 12, and the planetary gear speed reducer 13 incorporated therein and the casing A winch device comprising a winch drum 9 which is arranged so as to be rotatable integrally with 12;
A brake disk 10 is detachably provided on the outer periphery of the casing 12 of the planetary gear speed reducer 13 so as to be integrated in advance, and the brake disk 10 is attached to the flange part 14 of the winch drum 9, and the peripheral part of the brake disk 10 is The planetary gear speed reducer 13 is assembled to the winch drum 9 by attaching the flange portion 14 so as to project to the outer peripheral side, and the peripheral portion of the brake disk 10 is gripped and released to A brake device 11 capable of braking and releasing the rotation is installed.

  In the case of this illustrated example, the planetary gear speed reducer 13 has a fixed carrier 16 that is cylindrical and has flange portions 16a and 16b formed at both ends, on a base bracket 15 that is fixedly installed, as shown in FIG. The casing 12 is rotatably provided to the fixed carrier 16 via a bearing 17, and is connected to the center of the fixed carrier 16 and the casing 12 via the coupling 3 to the output shaft 2 of the rotary drive device 1. The input shaft 18 is rotatably arranged by bearings 19, 20 and 21, and an intermediate carrier 22 which is cylindrical and has a flange portion 22a formed at one end thereof is rotatably fitted to the input shaft 18. The first pin 23 fitted to the flange portion 22a of the intermediate carrier 22 has a sun gear 24 formed integrally with the distal end portion of the input shaft 18, and the inner peripheral surface of the casing 12. A first planetary gear 26 meshing with the provided first ring gear 25 is rotatably fitted via a bearing 27, and the second pin 28 fitted to the flange portion 16b of the fixed carrier 16 is fitted with the intermediate pin. A second planetary gear 31 that meshes with an intermediate sun gear 29 engraved on the outer periphery of the carrier 22 and a second ring gear 30 provided on the inner peripheral surface of the casing 12 is rotatably fitted via a bearing 32. It has the structure which consists of. Although the intermediate carrier 22 is rotatably fitted to the input shaft 18, the intermediate carrier 22 is also rotatably arranged with respect to the fixed carrier 16 via a bearing 33.

  The brake disc 10 is attached to the outer peripheral portion of the casing 12 of the planetary gear speed reducer 13 by using a fastening member 34 such as a bolt and a nut, and the brake disc 10 is attached to the flange portion 14 of the winch drum 9. For this, fastening members 35 such as bolts and nuts are used.

  Next, the operation of the illustrated example will be described.

  When the rotary drive device 1 is driven, the rotation of the output shaft 2 of the rotary drive device 1 is transmitted to the input shaft 18 of the planetary gear speed reducer 13 via the coupling 3, and the sun gear integrated with the input shaft 18 is transmitted. When the first planetary gear 26 rotates, the first planetary gear 26 revolves around the sun gear 24 along the inner periphery of the first ring gear 25, and the intermediate carrier 22 moves along the input shaft along with the revolution of the first planetary gear 26. 18, and the rotation of the intermediate sun gear 29 integral with the intermediate carrier 22 is transmitted to the second planetary gear 31, but the second planetary gear 31 rotates by being supported by the fixed carrier 16. Therefore, the second ring gear 30 is driven to rotate by the second planetary gear 31, and the second ring gear 30 is rotated. 0 casing 12 which is provided on the inner peripheral surface is rotated at a desired speed, the rotation of the casing 12 is transmitted to the winch drum 9 via the brake disk 10, the winch drum 9 is rotated.

  On the other hand, when the peripheral portion of the brake disk 10 is gripped by the brake device 11 while the winch drum 9 is rotating, the rotation of the winch drum 9 is braked, and the brake device 11 When the peripheral edge is released from the gripped state, braking of the winch drum 9 is released.

  In the winch device shown in FIGS. 1 and 2, the brake disk 10 is detachably provided on the outer periphery of the casing 12 so as to be integrated in advance, and the brake disk 10 is attached to the flange portion 14 of the winch drum 9. Since the peripheral portion is attached so as to protrude from the flange portion 14 to the outer peripheral side, a space for attaching the brake disk 10 is provided as compared with the conventional winch device as shown in FIG. It is not necessary to form the drum 9 and the winch drum 9 does not need to be enlarged. Since the casing 12 of the planetary gear speed reducer 13 is incorporated in the winch drum 9, it is originally manufactured with high accuracy. Therefore, the influence of the assembly error of the winch drum 9 and the manufacturing error of the winch drum 9 itself are caused. Almost free of influence, blurring hardly occurs during rotation of the brake disk 10, a stable braking performance is easily obtained.

  Further, the winch device shown in FIGS. 1 and 2 is not a structure in which a brake device is provided inside the planetary gear speed reducer, unlike the winch device disclosed in Patent Document 1, and therefore has a small number of parts. Is not complicated, it is easy to replace the brake disk 10 when it is worn, and maintenance is easy.

  In this way, the structure is simple and the maintenance property is good, and the vibration at the time of rotation of the brake disk 10 can be suppressed, and the stable braking performance can be obtained.

  Note that the winch device of the present invention is not limited to the above-described illustrated examples, and various modifications can be made without departing from the scope of the present invention.

It is a sectional side view which shows an example of the form which implements this invention. It is a top view which shows an example of the form which implements this invention. It is a top view which shows an example of the conventional winch apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotation drive device 2 Output shaft 3 Coupling 7 Wire rope 8 Bearing 9 Winch drum 10 Brake disk 11 Brake device 12 Casing 13 Planetary gear reducer 14 Flange part 16 Fixed carrier 17 Bearing 18 Input shaft 22 Intermediate carrier 24 Sun gear 25 First One ring gear 26 First planetary gear 29 Intermediate sun gear 30 Second ring gear 31 Second planetary gear 34 Fastening member 35 Fastening member

Claims (1)

A rotation drive device, a planetary gear speed reducer coupled to the output shaft of the rotation drive device and configured to rotate the casing, and the planetary gear speed reduction device incorporated therein and being rotatable together with the casing. A winch device comprising a winch drum disposed;
A brake disc is detachably provided in advance on the outer peripheral portion of the casing of the planetary gear speed reducer so that the brake disc is integrated with the flange portion of the winch drum. A brake device capable of braking / releasing the rotation of the winch drum by attaching the planetary gear speed reducer to the winch drum by attaching it so as to overhang, and holding and releasing the peripheral edge of the brake disk. A winch device configured to be installed.

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