CN215326223U

CN215326223U - Traveling cable winding device

Info

Publication number: CN215326223U
Application number: CN202120415750.0U
Authority: CN
Inventors: 李幸超; 李子旭
Original assignee: Baoding Zhuoheng Machinery Manufacture Co ltd
Current assignee: Baoding Zhuoheng Machinery Manufacture Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-12-28
Anticipated expiration: 2031-02-25

Abstract

The utility model provides a traveling cable winding device which comprises a rack, a winding drum and a motor, wherein the rack is rotationally connected with the winding drum and fixedly connected with the motor; the friction device comprises a shaft sleeve in fixed-ratio transmission connection with the output shaft of the motor, a baffle is arranged at one end of the shaft sleeve, and an adjusting nut is in threaded connection with the other end of the shaft sleeve; the winding drum is fixedly connected with a follow-up disc, the follow-up disc is sleeved on the shaft sleeve and is located between the baffle and the adjusting nut, the follow-up disc and the baffle form contact sliding connection, and an elastic element is arranged between the adjusting nut and the follow-up disc. The device is provided with a friction device, and the friction device is enabled to generate a slipping action by utilizing the pulling force when the travelling cable is tightened, so that the travelling cable is prevented from being pulled apart; and the slip torque of the friction device can be automatically adjusted to adapt to the traveling cables with different specifications.

Description

Traveling cable winding device

Technical Field

The utility model relates to the field of power supply devices of mobile equipment, in particular to a traveling cable winding device.

Background

The trailing cable is a cable which is wound and unwound along with the mobile equipment, and is mainly used for lifting equipment such as elevators, building outer wall construction platforms and the like. The cable is wound and unwound through the traveling cable winding device, namely the cable is wound and unwound by matching the winding and unwinding speed of the traveling cable winding device with the running speed of the equipment to finish the following traveling of the cable. The conventional travelling cable winding device is similar to the structure shown in fig. 1 and 2, and comprises a motor 4 (a speed regulating mechanism such as a speed reducer 3) for providing power, a winding drum 1 fixedly connected with an output shaft of the motor 4 finally and a frame 5 connected with the device. The traveling cable 2 is led out from a junction box 6 fixedly connected with the frame 5, penetrates into the winding drum 1, is exposed from the drum wall of the winding drum 1 and is wound on the winding drum 1. Since the reel 1 is rotatably connected to the frame 5, a conductive slip ring 7 is provided at an end of the reel 1 to connect the cables inside and outside the reel 1 in order to prevent the trailing cable 2 from twisting when rotating together. The output shaft of the motor 4 is fixedly connected with the winding drum 1, namely the output shaft and the winding drum are in fixed ratio transmission and cannot slip, but when the equipment and the travelling cable are out of synchronization due to various reasons, the motor 4 sometimes tightens the travelling cable 2 too tightly and even breaks the travelling cable 2, so that equipment is stopped or construction cannot be smoothly carried out.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a travelling cable winding device capable of preventing a travelling cable from being broken.

In order to solve the technical problems, the technical scheme of the utility model is as follows: a traveling cable winding device comprises a rack, a winding drum and a motor, wherein the rack is rotatably connected with the winding drum and fixedly connected with the motor, the motor is in transmission connection with the winding drum, and the motor is in transmission connection with the winding drum through a friction device; the friction device comprises a shaft sleeve in fixed-ratio transmission connection with the output shaft of the motor, a baffle is arranged at one end of the shaft sleeve, and an adjusting nut is in threaded connection with the other end of the shaft sleeve; the winding drum is fixedly connected with a follow-up disc, the follow-up disc is sleeved on the shaft sleeve and is located between the baffle and the adjusting nut, the follow-up disc and the baffle form contact sliding connection, and an elastic element is arranged between the adjusting nut and the follow-up disc.

Further: the elastic element is a disc spring.

Further: and a friction plate is arranged between the tight baffle and the follow-up disc.

Further: a pressure plate sleeved on the shaft sleeve is also arranged between the follow-up disc and the elastic element.

Further: and a friction plate is arranged between the pressure plate and the follow-up plate.

Further: the outer wall of the shaft sleeve is provided with a plane parallel to the axis of the shaft sleeve, and the through hole for penetrating the shaft sleeve is provided with a plane matched with the plane.

Further: one end of the shaft sleeve connected with the adjusting nut protrudes out of the winding drum.

Further: one end of the winding drum is provided with a vertical plate perpendicular to the axis of the winding drum, and the follow-up disc is fixedly connected with the vertical plate through a bolt.

Further: the winding drum comprises an inner drum and an outer drum, the inner drum and the outer drum are coaxially arranged and fixedly connected through a vertical plate, a spindle is fixedly connected with a spindle, and the spindle is rotatably connected with the inner drum through a bearing.

By adopting the technical scheme, the utility model has the beneficial effects that the trailing cable winding device is provided, and the friction device is arranged, so that the friction device can generate a slipping action by utilizing the pulling force when the trailing cable is tightened, and the trailing cable is prevented from being broken. In addition, the slip torque of the friction device can be automatically adjusted to adapt to the traveling cables with different specifications. The device has simple structure, reliable work and high popularization value.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic view of the platen and sleeve mating connection of the present invention;

the device comprises a winding drum 1, a traveling cable 2, a speed reducer 3, a motor 4, a frame 5, a junction box 6, a conductive slip ring 7, a friction device 8, a bearing 9, an inner cylinder 10, an outer cylinder 11, a vertical plate 12, a baffle 13, a follow disc 14, a friction plate 15, a pressure plate 16, a main shaft 17, an adjusting nut 18, a disc spring 19, a shaft sleeve 20, a bolt 21 and a plane 22.

Detailed Description

As shown in fig. 1 and 2, the travelling cable winding device of the present invention is substantially the same as the conventional travelling cable winding device, and includes a frame 5, a winding drum 1, and a motor 4 (including a speed adjusting mechanism such as a speed reducer 3 in a corresponding case) for supplying power. The frame 5 is rotatably connected with the winding drum 1 and fixedly connected with the motor 4. The main improvement of the utility model is that: a friction device 8 is arranged between the output shaft of the motor 4 and the winding drum 1.

As shown in fig. 2 and 3, the friction device 8 comprises a main shaft 17 which is finally fixedly connected with the output shaft of the motor 4; that is, the main shaft 17 and the output shaft of the motor 4 are in fixed ratio transmission, and relative sliding cannot be generated. A sleeve 20 is fixed on the main shaft 17, a baffle 13 is arranged at one end of the sleeve 20, and an adjusting nut 18 is connected with the other end of the sleeve 20 through threads. The winding drum 1 is fixedly connected with a follower disk 14, the follower disk 14 is sleeved on a shaft sleeve 20 and is positioned between the baffle plate 13 and the adjusting nut 18, and the follower disk 14 and the baffle plate 13 form a contact sliding connection, namely the follower disk 14 and the baffle plate 13 are in contact in a certain sense (for example, the follower disk and the baffle plate are in contact with each other through a friction plate 15 in the embodiment, but can also be in direct contact) and can slide (rotate) with each other. An elastic member (in the preferred embodiment, a disc spring 19 is selected because it has a higher spring constant than a linear spring and provides a stronger elastic force in a limited space) is provided between the adjustment nut 18 and the follower disk 14.

The friction device 8 is used by screwing or unscrewing the adjusting nut 18 so that the degree of compression of the elastic element is adjusted to a suitable range, and a preset elastic force is obtained. Under the action of the elastic force, the elastic element presses the follow-up disc 14 against the baffle 13 so as to generate friction force between the follow-up disc and the baffle 13. When the friction force is larger than the rotation resistance of the winding drum 1, the motor 4 drives the main shaft 17 to enable the winding drum 1 to normally rotate; however, in an unexpected situation, when the trailing cable 2 is tightened, and the pulling force of the trailing cable 2 is greater than the frictional force, the main shaft 17 slips against the drum 1, thereby preventing the trailing cable 2 from being pulled apart.

In addition, in order to further enhance the friction force, the preferred embodiment is to provide a friction plate 15 between the tight baffle 13 and the follower disk 14 to avoid that the spool 1 is too easy to slip due to an excessively small friction coefficient between the two steel parts.

In order to fully utilize the material thickness of the follower disk 14, friction mechanisms can be arranged on both sides of the follower disk 14, so that both sides of the follower disk 14 can be uniformly worn and are better stressed. Specifically, in the preferred embodiment, a pressure plate 16 is further arranged between the follower disk 14 and the elastic element, the pressure plate 16 is sleeved on the shaft sleeve 20, the friction plate 15 is also arranged between the pressure plate 16 and the follower disk 14, the diameter of the pressure plate 16 is larger than that of the disc spring 19, and a convex edge for preventing the disc spring 19 from falling off is preferably arranged at the edge of the pressure plate 16.

If slip occurs between the spool 1 and the spindle 17, the follower disk 14 tends to rotate the pressure plate 16 on the sleeve 20, and more specifically, since the spool 1 is stationary, the pressure plate 16 tends to be stationary due to friction, but the sleeve 20 is still rotating, so that relative rotation is generated between the pressure plate 16 and the sleeve 20, and such rotation causes further tightening or loosening of the adjusting nut 18 by the disc spring 19, thereby causing the elastic force of the disc spring 19 to change, and ultimately affecting the preset slip torque. In order to avoid this problem, as shown in fig. 4, a plane 22 is milled on the cylindrical surface of the sleeve 20, that is, the outer wall of the sleeve 20 has a plane 22 parallel to the axis of the sleeve 20, and the through hole of the pressure plate 16 for penetrating the sleeve 20 is also formed with a matched hole shape, in other words, the through hole of the pressure plate 16 has a plane matched with the plane 22, so that the rotation between the pressure plate 16 and the sleeve 20 can be avoided, and the preset slip moment can be ensured to be constant.

In order to facilitate the adjustment of the adjusting nut 18, in the present embodiment, one end of the sleeve 20 connected to the adjusting nut 18 protrudes from the winding drum 1. This allows the adjustment nut 18 to be operated with a wrench inserted into the gap between the motor 4 and the reel 1.

In addition, in order to facilitate the installation of the friction device 8, an upright plate 12 perpendicular to the axis of the winding drum 1 is disposed at one end of the winding drum 1, bolt holes are disposed along the circumferential direction at the edge of the disc surface of the follower disk 14, and the follower disk 14 is fixedly connected with the upright plate 12 through bolts 21.

Finally, since the main shaft 17 and the follower disk 14 fixedly connected to the spool 1 sometimes rotate, the main shaft 17 and the spool 1 of the present embodiment are rotatably connected by the bearing 9 in order to make the rotation smoother and more coaxial. Because of the vertical plate 12, the winding drum 1 is divided into the inner cylinder 10 and the outer cylinder 11 for the convenience of installing the bearing, and the inner cylinder 10 and the outer cylinder 11 are coaxially arranged and fixedly connected through the vertical plate 12. Thus, the bearing 9 smaller than the inner hole of the vertical plate 12 can be inserted into the inner cylinder 10 to form a rotary connection.

Claims

1. The utility model provides a retinue cable hoisting device, includes frame (5), reel (1) and motor (4), frame (5) rotate with reel (1) be connected and with motor (4) fixed connection, motor (4) are connected its characterized in that with reel (1) transmission: the motor (4) is in transmission connection with the winding drum (1) through a friction device (8); the friction device (8) comprises a shaft sleeve (20) in fixed-ratio transmission connection with an output shaft of the motor (4), a baffle plate (13) is arranged at one end of the shaft sleeve (20), and an adjusting nut (18) is in threaded connection with the other end of the shaft sleeve (20); the winding drum (1) is fixedly connected with a follow-up disc (14), the follow-up disc (14) is sleeved on the shaft sleeve (20) and is located between the baffle plate (13) and the adjusting nut (18), the follow-up disc (14) and the baffle plate (13) form contact sliding connection, and an elastic element is arranged between the adjusting nut (18) and the follow-up disc (14).

2. The travelling cable winding device according to claim 1, wherein: the elastic element is a disc spring (19).

3. The travelling cable winding device according to claim 1, wherein: a friction plate (15) is arranged between the tight baffle plate (13) and the follow-up disc (14).

4. The travelling cable winding device according to claim 1, wherein: a pressure plate (16) sleeved on the shaft sleeve (20) is further arranged between the follow-up disc (14) and the elastic element.

5. The travelling cable winding device according to claim 4, wherein: a friction plate (15) is arranged between the pressure plate (16) and the follow-up disc (14).

6. The travelling cable winding device according to claim 4, wherein: the outer wall of the shaft sleeve (20) is provided with a plane (22) parallel to the axis of the shaft sleeve (20), and the through hole of the pressure plate (16) for penetrating the shaft sleeve (20) is provided with a plane matched with the plane (22).

7. The travelling cable winding device according to claim 1, wherein: one end of the shaft sleeve (20) connected with the adjusting nut (18) protrudes out of the winding drum (1).

8. The travelling cable winding device according to claim 7, wherein: one end of the winding drum (1) is provided with a vertical plate (12) vertical to the axis of the winding drum (1), and the follow-up disc (14) is fixedly connected with the vertical plate (12) through a bolt (21).

9. The travelling cable winding device according to claim 8, wherein: the winding drum (1) comprises an inner drum (10) and an outer drum (11), the inner drum (10) and the outer drum (11) are coaxially arranged and are fixedly connected through a vertical plate (12), a spindle sleeve (20) is fixedly connected with a spindle (17), and the spindle (17) is rotatably connected with the inner drum (10) through a bearing (9).