High-stability nylon pulley for pulling and releasing wire

Abstract

The utility model discloses a high-stability nylon pulley for pulling and releasing a lead, which comprises a bracket with a U-shaped structure, a nylon pulley is arranged in the bracket, two groups of through cavities are symmetrically arranged on one side wall of the bracket, telescopic rods are fixed in the through cavities, and springs are arranged in the telescopic rods. The nylon pulley has the beneficial effects that the self-adaptive adjusting and stabilizing mechanism consisting of the telescopic rod, the spring, the limiting plate and the ball is arranged, so that the ball on the limiting plate is always in contact with the nylon pulley under the action of resilience force of the telescopic rod and the spring in the use process of the nylon pulley; when a gap between the nylon pulley and the support becomes large due to abrasion, the nylon pulley can be limited, jumping of the nylon pulley in the traction and releasing guiding process is avoided, meanwhile, the friction force between the limiting plate and the nylon pulley can be reduced through the balls, the normal rotation performance of the nylon pulley is guaranteed, and the nylon pulley has the advantages of being high in stability and good in wire pulling effect and is good in use effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to nylon pulley technical field, concretely relates to a high stability nylon pulley for drawing and placing conductor. BACKGROUND

[0002] Nylon pulley as tower crane accessory has been widely used in each hoisting equipment, with its unique advantage gradually replaces the old metal pulley. Nylon pulley can play the purpose of replacing steel with plastic, the self-lubricating effect.

[0003] The existing nylon pulley for drawing and placing conductor will be subjected to pressure from the conductor during use, and will produce wear during rotating and guiding, resulting in the gap between the supports becoming larger, and the nylon pulley will jump during drawing and placing the conductor, which not only affects the effect of drawing the conductor, but also results in poor stability. Therefore, there is an urgent need for a high-stability nylon pulley for drawing and placing conductor to solve the above problems. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] The technical problem to be solved by the utility model is to provide a high-stability nylon pulley for drawing and placing conductor in view of the current status of the prior art.

[0006] (II) Technical scheme

[0007] The utility model realizes the following technical scheme: the utility model provides a high-stability nylon pulley for drawing and placing conductor, which comprises a support of U-shaped structure, a nylon pulley is installed in the support, two groups of through cavities are symmetrically formed on one side wall of the support, an extension rod is fixed in the through cavity, a spring is arranged in the extension rod, an arc-shaped limiting plate is fixed on the movable part of the extension rod, and a plurality of groups of balls are arrayed on the inner wall of the limiting plate.

[0008] Further, the nylon pulley is rotatably installed in the support, and the through cavity is formed on the support.

[0009] Further, the fixed part of the extension rod is welded in the through cavity, and the spring is fixed between the fixed part and the movable part of the extension rod.

[0010] Further, the limiting plate is fixed on the movable part of the extension rod by screws, and the curvature of the limiting plate is consistent with the curvature of the nylon pulley.

[0011] Further, the balls are rotatably installed in the limiting plate, and the material of the balls is nylon.

[0012] Further, a fixed plate is reserved on one side wall of the limiting frame, and a fixed hole is formed in each corner of the upper end of the fixed plate.

[0013] (Three) beneficial effects

[0014] The utility model discloses relative to prior art has the following beneficial effects:

[0015] The utility model discloses a set of by telescopic link, spring, limit board and ball constitute the adaptive adjustment stabilizing mechanism, in the nylon pulley use process, the ball on the limit board is always contacted with the nylon pulley under the action of telescopic link and spring resilience, and then when the nylon pulley can be positioned when the gap between the support because of abrasion is big, avoid its in the pulling and putting guide process and produce the jumping, and the ball can reduce the friction between the limit board and the nylon pulley, guarantee the normal rotation performance of nylon pulley, with high stability and good line pulling effect characteristics, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the high stability nylon pulley for pulling and putting guide wire of the utility model;

[0017] Figure 2 It is the explosion schematic diagram of telescopic link and support connection relation in the high stability nylon pulley for pulling and putting guide wire of the utility model;

[0018] Figure 3 It is the high stability nylon pulley for pulling and putting guide wire of the utility model in Figure 2 The enlarged view of A in the middle.

[0019] The following is explained:

[0020] 1, fixed plate, 2, support, 3, nylon pulley, 4, telescopic link, 5, limit board, 6, spring, 7, ball, 8, through cavity, 9, fixed hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the following is combined with the drawings and example, and the utility model is further explained in detail.Should be understood, the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0022] As Figures 1-3As shown, the high-stability nylon pulley for pulling and placing the conductor in the embodiment comprises a support 2 in U-shaped structure, a nylon pulley 3 is installed in the support 2, the nylon pulley 3 guides the conductor during the process of pulling and placing the conductor, two groups of through cavities 8 are symmetrically formed on one side wall of the support 2, an extension rod 4 is fixed in the through cavity 8, a spring 6 is arranged in the extension rod 4, the spring 6 can ensure that the ball 7 is always in contact with the nylon pulley 3, an arc-shaped limiting plate 5 is fixed on the movable part of the extension rod 4, the limiting plate 5 can limit the nylon pulley 3, a plurality of balls 7 are arrayed on the inner wall of the limiting plate 5, and the friction between the limiting plate 5 and the nylon pulley 3 is reduced.

[0023] As Figures 1-3 In the embodiment, the nylon pulley 3 is rotatably installed in the support 2, the through cavity 8 is formed on the support 2, the fixed part of the extension rod 4 is welded in the through cavity 8, the spring 6 is fixed between the fixed part and the movable part of the extension rod 4, the limiting plate 5 is fixed on the movable part of the extension rod 4 by screws, the curvature of the limiting plate 5 is consistent with the curvature of the nylon pulley 3, the ball 7 is rotatably installed in the limiting plate 5, the material of the ball 7 is nylon, during use, the conductor is placed on the nylon pulley 3, the nylon pulley 3 guides the conductor during the process of pulling and placing the conductor, the ball 7 on the limiting plate 5 is always in contact with the nylon pulley 3 under the action of the extension rod 4 and the spring 6, and thus the nylon pulley 3 can be limited when the gap between the nylon pulley 3 and the support 2 becomes large due to abrasion, the nylon pulley 3 can avoid jumping during the process of pulling and guiding, the ball 7 can reduce the friction between the limiting plate 5 and the nylon pulley 3, the normal rotation performance of the nylon pulley 3 is ensured, the characteristics of high stability and good pulling effect are achieved, and the use effect is good.

[0024] As Figures 1-3 In the embodiment, the fixed plate 1 is reserved on one side wall of the limiting frame, the fixed holes 9 are formed in the four corners of the upper end of the fixed plate 1, and the fixed holes 9 on the fixed plate 1 facilitate the installation and fixation of the device.

[0025] The specific implementation process of the embodiment is as follows: first, the device is fixed through the fixed holes 9 on the fixed plate 1, during use, the conductor is placed on the nylon pulley 3, the nylon pulley 3 guides the conductor during the process of pulling and placing the conductor, the ball 7 on the limiting plate 5 is always in contact with the nylon pulley 3 under the action of the extension rod 4 and the spring 6, and thus the nylon pulley 3 can be limited when the gap between the nylon pulley 3 and the support 2 becomes large due to abrasion, the nylon pulley 3 can avoid jumping during the process of pulling and guiding, the ball 7 can reduce the friction between the limiting plate 5 and the nylon pulley 3, the normal rotation performance of the nylon pulley 3 is ensured, the characteristics of high stability and good pulling effect are achieved, and the use effect is good.

[0026] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-stability nylon pulley for traction conductor, characterized by: The support (2) comprising U-shaped structure, the nylon pulley (3) is installed in the support (2), two groups of through cavities (8) are symmetrically formed on the one side wall of the support (2), the telescopic rod (4) is fixed in the through cavity (8), the spring (6) is arranged in the telescopic rod (4), the arc-shaped limiting plate (5) is fixed on the movable part of the telescopic rod (4), and the plurality of groups of ball bearings (7) are arranged on the inner wall of the limiting plate (5).

2. The high-stability nylon pulley for traction conductor according to claim 1, characterized in that: The nylon pulley (3) is rotatably installed in the support (2), and the through cavity (8) is formed on the support (2).

3. The high-stability nylon pulley for traction conductor according to claim 1, characterized in that: The fixed part of the telescopic rod (4) is welded in the through cavity (8), and the spring (6) is fixed between the fixed part and the movable part of the telescopic rod (4).

4. The high-stability nylon pulley for traction conductor according to claim 1, characterized in that: The limiting plate (5) is fixed on the movable part of the telescopic rod (4) through screws, and the curvature of the limiting plate (5) is consistent with the curvature of the nylon pulley (3).

5. The high-stability nylon pulley for traction conductor according to claim 4, characterized in that: The ball bearing (7) is rotatably installed in the limiting plate (5), and the material of the ball bearing (7) is nylon.

6. The high-stability nylon pulley for traction conductor according to claim 5, characterized in that: The fixed plate (1) is reserved on the one side wall of the limiting frame.

7. The high-stability nylon pulley for traction conductor according to claim 6, characterized in that: The fixed holes (9) are formed in the upper end of the fixed plate (1).

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