CN211169342U

CN211169342U - Spring anti-fatigue structure of cable drum

Info

Publication number: CN211169342U
Application number: CN201921754034.4U
Authority: CN
Inventors: 郑洪涛; 张世斌; 李云杰
Original assignee: Chengdu Cunny Mechanical Engineering Co ltd
Current assignee: Chengdu Cunny Mechanical Engineering Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-04
Anticipated expiration: 2029-10-18

Abstract

The utility model provides a spring anti-fatigue structure of a cable drum, which comprises a clockwork spring, an inner side end and an outer side end; the outer side of the rotating shaft is provided with a pressing block, the inner side face of the pressing block can be matched with the outer side face of the rotating shaft, and the inner side end of the clockwork spring is fixed outside the rotating shaft in a pressing mode through the inner side face of the pressing block; and the swinging block can rotate around one end of the swinging block, and the outer side end of the clockwork spring is fixedly connected with the other end of the swinging block. This application can effectively avoid clockwork spring because of tired fracture, improves spring cable reel life. The maintenance cost is reduced, the shutdown maintenance time of the whole equipment is reduced, and the use efficiency of the equipment is improved.

Description

Spring anti-fatigue structure of cable drum

Technical Field

The utility model relates to a cable drum field, concretely relates to fatigue structure is prevented to cable drum's spring.

Background

The cable reel is a cable winding device for providing a power supply, a control power supply or a control signal for large-scale mobile equipment. The device is widely applied to heavy mechanical equipment under similar working conditions such as port portal cranes, container cranes, ship loaders and tower cranes.

Wherein, spring cable drum is a comparatively common cable drum, and present spring inner and outer end all fixes through the V-arrangement structure, and in the course of the work, the spring among the current cable drum is easy because of fatigue fracture, and the problem that the field needs to solve urgently is aforementioned.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can effectively avoid the spring to prevent fatigue structure because of the cracked cable drum's of fatigue spring.

In order to solve the technical problem, the utility model provides a scheme is: a spring anti-fatigue structure of a cable drum comprises a clockwork spring, wherein the clockwork spring comprises an inner side end and an outer side end; and

the spring comprises a rotating shaft, a pressing sleeve is arranged on the outer side of the rotating shaft, the inner side surface of the pressing sleeve can be matched with the outer side surface of the rotating shaft, and the inner end of the spring is fixed outside the rotating shaft in a pressing mode through the inner side surface of the pressing sleeve; and

the swing block can rotate around one end of the swing block, and the outer side end of the clockwork spring is fixedly connected with the other end of the swing block.

Further, the method comprises the following steps: the rotating shaft is cylindrical, and the inner side surface of the pressing sleeve is an arc-shaped surface.

Further, the method comprises the following steps: one end of the swinging block is in running fit with the pin shaft, and the other end of the swinging block is fixedly connected with the outer side end of the clockwork spring through a connecting piece.

Further, the method comprises the following steps: the pressing sleeve is fixed with the rotating shaft and the inner side end of the clockwork spring through a connecting piece.

Further, the method comprises the following steps: the connecting piece is a bolt.

Further, the method comprises the following steps: the spring box is characterized by further comprising a spring box, the rotating shaft is arranged in the middle of the spring box, and the spring is arranged in the spring box.

The utility model has the advantages that: this application can effectively avoid clockwork spring because of tired fracture, improves spring cable reel life. The maintenance cost is reduced, the shutdown maintenance time of the whole equipment is reduced, and the use efficiency of the equipment is improved.

Drawings

FIG. 1 is an overall perspective view of the present application;

the reference numbers are as follows: the spring box comprises a spring box 1, a clockwork spring 2, a pressing sleeve 3, a rotating shaft 4, a pin shaft 5 and a swinging block 6.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 1, the spring anti-fatigue structure of the cable drum comprises a spring case 1, a rotating shaft 4 is arranged in the middle of the spring case 1, a spring 2 is arranged in the spring case, and the spring 2 comprises an inner end and an outer end.

Specifically, 4 outsides in pivot set up and press cover 3, press the medial surface of cover 3 to cooperate with the lateral surface of pivot 4, the medial surface of clockwork spring 2 cup joints on pivot 4, press the medial surface of cover 3 to be fixed in outside 4 pivots with clockwork spring 2's medial surface pressfitting to fix through the connecting piece, in a common embodiment, pivot 4 is cylindrical, then press the medial surface of cover 3 to be the arcwall face with cylindrical lateral wall matching, this connecting piece is the bolt.

The spring box 1 is provided with a pin shaft 5 near the outer end of the clockwork spring 2, one end of a swing block 6 is sleeved on the pin shaft 5 and can rotate around the pin shaft 5, the other end of the swing block 6 is fixedly connected with the outer end of the clockwork spring 2 through a connecting piece, and the connecting piece can be but is not limited to a bolt.

This application is fixed through having intrados and must pressing the medial extremity of cover 3 to clockwork spring 2 to carry out the pressfitting, and by connecting piece pretension, the area of contact of clockwork spring 2 and pivot 4 has been increased, make clockwork spring 2's panel and pivot 4 through the stiction transmission, thereby can effectively eliminate the stress concentration of clockwork spring 2 medial extremity, through at outside end and pendulum block 6 fixed connection, through the stiction transmission, make pendulum block 6 deflect in certain extent along with clockwork spring 2's outside end when clockwork spring 2 rolls, eliminate the stress concentration of clockwork spring 2 outside end effectively, avoid clockwork spring 2 because of fatigue fracture, thereby can prevent that the angle undersize between clockwork spring 2's outside end and pendulum block 6 from leading to clockwork spring 2 to take place deformation.

This application adopts special construction to fix through the both ends to clockwork spring 2, can effectively avoid clockwork spring 2 because of tired fracture, improves spring cable reel life. The maintenance cost is reduced, the shutdown maintenance time of the whole equipment is reduced, and the use efficiency of the equipment is improved.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A spring anti-fatigue structure of a cable drum is characterized by comprising a clockwork spring, wherein the clockwork spring comprises an inner side end and an outer side end; and

2. The anti-fatigue spring structure of claim 1, wherein the rotating shaft is cylindrical, and the inner side surface of the pressing sleeve is an arc surface.

3. The anti-fatigue structure for the spring of the cable drum as claimed in claim 1, wherein one end of the swinging block is rotatably fitted with the pin, and the other end of the swinging block is fixedly connected with the outer end of the clockwork spring through a connecting member.

4. The spring fatigue preventing structure of a cable reel as claimed in claim 1, wherein said pressing sleeve is fixed to said rotation shaft and an inner end of said power spring by a coupling member.

5. A spring fatigue prevention structure of a cable reel as claimed in claim 3 or 4, wherein said connecting member is a bolt.

6. The anti-fatigue structure for a spring of a cable reel as claimed in claim 1, further comprising a spring case, wherein the shaft is disposed at a middle portion of the spring case, and the spring is disposed in the spring case.