Cable traction device

Abstract

The utility model relates to the technical field of power construction, in particular to a cable traction device. The cable traction device comprises a base, a guide assembly is arranged on one side of the input end of the top of the base, when a cable is pulled, the cable sequentially penetrates through a circular cavity formed by a plurality of arc-shaped blocks and an empty groove formed between a transmission roller and a driven roller, a motor is started to drive a transmission rod to rotate, and then the transmission rod drives the transmission roller to rotate. The driven roller is driven to rotate through the friction force between the transmission roller and the cable, so that the cable is pulled, when a small-diameter cable is pulled, the lifting assembly pushes the adjusting frame to move downwards, the driven roller is driven to move downwards, and the distance between the transmission roller and the driven roller is shortened, and when a large-diameter cable is pulled, the lifting assembly pulls the adjusting frame to move upwards, and the driven roller is driven to move upwards. And the distance between the driving roller and the driven roller is increased, and the distance between the driving roller and the driven roller is changed, so that the device is suitable for cables with different diameters, and the application range is enlarged.

Description

TECHNICAL FIELD

[0001] The utility model relates to power construction technical field, concretely relates to a cable traction device. BACKGROUND

[0002] With the continuous development of electric power industry, whether the laying of cable in power plant or the laying of cable of city power grid, industrial electric facilities, all need efficient, safe cable traction device.

[0003] For the traction device, there are many in the prior art, for example:

[0004] Chinese patent application number CN219677965U discloses a kind of cable laying traction device, including connecting frame, second traction structure and first traction structure are distributed in the inside of connecting frame upper and lower, equipment box is fixedly installed on the outer wall of one side of connecting frame, driving motor is installed in the inside of equipment box, supporting device is provided on the upper and lower side wall of connecting frame.The utility model designs first traction structure and supporting device on a kind of cable laying traction device, when using, rotating turntable, drive screw rod to rotate, to expand the interval of two groups of supporting blocks, so that the device is fixed at pipe opening, then the cable one end is passed through connecting frame, and located between first traction wheel and second traction wheel, and driving motor is started to drive first traction wheel to rotate, so as to drive cable to move to pipe end, reduce the condition that cable is damaged due to with pipe opening scratch when passing through pipe, reduce cable quality, simultaneously, first traction wheel can be transported to cable, improve traction efficiency.

[0005] The existing traction device realizes the traction of cable by two groups of traction mechanisms, but the positions between the two groups of traction mechanisms are relatively fixed, since different diameter cables need to be used in construction process, therefore, it is inconvenient to adapt to cables of different diameters, in view of this, we propose a kind of cable traction device. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the above-mentioned shortcomings, and provides a kind of cable traction device;

[0007] To achieve the above object, the utility model provides a kind of cable traction device, including base, the top input end one side of base is equipped with guide assembly, the top output end one side of base is provided with mounting frame, the inner chamber of mounting frame is equipped with traction assembly, the traction assembly includes first traction assembly rotationally arranged in the inner chamber lower of mounting frame, the second traction assembly is slidably arranged in the inner chamber of mounting frame, the second traction assembly is located above first traction assembly, and lifting assembly is arranged between the top of second traction assembly and the top of inner chamber of mounting frame.

[0008] As a further improvement of the technical solution, the first traction assembly comprises a transmission rod rotatably arranged below the inner cavity of the mounting frame, one end of the traction assembly is fixedly connected with the output end of the motor, and a transmission roller is fixedly arranged on the surface of the transmission rod.

[0009] As a further improvement of the technical solution, the lifting assembly comprises a lead screw rotatably arranged above the inner cavity of the mounting frame, and two moving blocks are symmetrically and threadedly arranged on the surface of the lead screw.

[0010] As a further improvement of the technical solution, the guide assembly comprises a stand fixedly arranged at the input end of the top of the base, and a guide ring is fixedly arranged at the top of the stand.

[0011] As a further improvement of the technical solution, a plurality of arc-shaped blocks are arranged in the inner cavity of the guide ring, and a plurality of springs are arranged between the outer wall of the arc-shaped blocks and the inner wall of the guide ring.

[0012] As a further improvement of the technical solution, the surfaces of the transmission roller and the driven roller are respectively provided with anti-skid layers.

[0013] Compared with the prior art, the cable traction device has the following advantages:

[0014] In the cable traction device, when the cable is pulled, the cable sequentially passes through the circular cavity formed by the plurality of arc-shaped blocks, the gap between the transmission roller and the driven roller, and then the motor is started to drive the transmission rod to rotate, and then the transmission rod drives the transmission roller fixedly connected therewith to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3It is the whole structure schematic view of the utility model, and three thereof;

[0018] Figure 4 It is the lifting mechanism structure schematic view of the utility model;

[0019] Figure 5 It is the guide mechanism structure schematic view of the utility model.

[0020] The meaning of each reference numeral in the drawing is as follows:

[0021] 1, base;

[0022] 2, guide assembly; 21, stand; 22, guide ring; 23, arc block; 24, spring;

[0023] 3, mounting frame;

[0024] 4, traction assembly; 41, first traction assembly; 411, transmission rod; 412, transmission roller; 42, second traction assembly; 421, adjusting frame; 422, driven rod; 423, driven roller;

[0025] 5, lifting assembly; 51, positive and negative screw rod; 52, moving block; 53, connecting rod;

[0026] 6, anti-skid layer. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figures 1-5 The embodiment provides a cable traction device, which comprises a base 1, a guide assembly 2 is arranged on one side of the top input end of the base 1, a mounting frame 3 is arranged on one side of the top output end of the base 1, a traction assembly 4 is arranged in the inner cavity of the mounting frame 3, the traction assembly 4 comprises a first traction assembly 41 rotatably arranged below the inner cavity of the mounting frame 3, a second traction assembly 42 slidably arranged in the inner cavity of the mounting frame 3, the second traction assembly 42 is located above the first traction assembly 41, and a lifting assembly 5 is arranged between the top of the second traction assembly 42 and the top of the inner cavity of the mounting frame 3;

[0029] The traction assembly 4 is used for traction cable, the lifting assembly 5 is used for driving the second traction assembly 42 to move up and down, and the distance between the first traction assembly 41 and the second traction assembly 42 is adjusted.

[0030] The improvement of the embodiment is that when the cable needs to be pulled, the cable first passes through the guide assembly 2, then enters the first traction assembly 41 and the second traction assembly 42, and then the first traction assembly 41 and the second traction assembly 42 pull the cable. When pulling a small-diameter cable, the lifting assembly 5 drives the second traction assembly 42 to move downward, shortening the distance between the first traction assembly 41 and the second traction assembly 42, so as to pull the small-diameter cable. When pulling a large-diameter cable, the lifting assembly 5 drives the second traction assembly 42 to move upward, increasing the distance between the first traction assembly 41 and the second traction assembly 42, so as to pull the large-diameter cable. By moving the second traction assembly 42 up and down to change the distance between the first traction assembly 41 and the second traction assembly 42, it is beneficial to adapt to cables of different diameters and increase the range of use.

[0031] In order to facilitate the pulling out of the cable, therefore, as shown in Figures 1-3 The first traction assembly 41 includes a transmission rod 411 rotatably arranged below the inner cavity of the mounting frame 3. One end of the traction assembly 4 is fixedly connected with the output end of the motor. The surface of the transmission rod 411 is fixedly provided with a transmission roller 412. The second traction assembly 42 includes an adjusting frame 421 slidably arranged in the inner cavity of the mounting frame 3. The inner cavity of the adjusting frame 421 is rotatably provided with a driven rod 422. The surface of the driven rod 422 is fixedly provided with a driven roller 423. When the cable needs to be pulled, the cable passes through the guide assembly 2 and enters the gap formed by the transmission roller 412 and the driven roller 423. Then the motor is started to drive the transmission rod 411 to rotate, and then the transmission rod 411 drives the transmission roller 412 fixedly connected therewith to rotate. Since the cable is arranged between the transmission roller 412 and the driven roller 423, the driven roller 423 is driven to rotate by the friction force between the transmission roller 412 and the cable, realizing the pulling of the cable. Instead of manual pulling, it is beneficial to reduce the work burden of the staff.

[0032] Considering that different sizes of cables will be used during construction, therefore, as Figures 1-4As shown, the lifting assembly 5 includes a reversible screw rod 51 rotatably arranged above the inner cavity of the mounting frame 3, and the reversible screw rod 51 is symmetrically threaded with two moving blocks 52 on the surface, and the moving blocks 52 are rotatably connected with the top of the adjusting frame 421 through a connecting rod 53. When the small-diameter cable is pulled, the reversible screw rod 51 is driven to rotate in the forward direction by rotating the handle in the forward direction, so that the two moving blocks 52 move inward on the surface of the reversible screw rod 51, and then the connecting rod 53 pushes the adjusting frame 421 to move downward, so that the driven roller 423 moves downward and approaches the transmission roller 412, so that the distance between the transmission roller 412 and the driven roller 423 is reduced to pull the small-diameter cable. When the large-diameter cable is pulled, the reversible screw rod 51 is reversely rotated, and then the moving blocks 52 move outward on the surface of the reversible screw rod 51, and the connecting rod 53 pulls the adjusting frame 421 upward, so that the driven roller 423 moves upward, and the distance between the transmission roller 412 and the driven roller 423 is increased to pull the large-diameter cable. By moving the driven roller 423 up and down, the distance between the driven roller 423 and the transmission roller 412 is changed, which is beneficial to adapt to cables of different diameters and increase the use range.

[0033] In view of the fact that the cable may deviate from the correct path due to its own flexibility, interference from the surrounding environment, or inaccurate position, therefore, as shown in Figure 2 and Figure 5 The guide assembly 2 includes a stand 21 fixedly arranged at the input end of the top of the base 1, and the stand 21 is fixedly provided with a guide ring 22 at the top. When the cable is pulled, the cable passes through the guide ring 22 and the gap between the transmission roller 412 and the driven roller 423 in sequence. During the pulling process, the guide ring 22 limits the transverse movement range of the cable, so that the cable can only move along the central axis direction of the guide ring 22, corrects the position of the cable, and makes it consistent with the axial direction of the traction roller, avoids the phenomenon that the cable is wound, knotted or only partially contacted with the traction roller when entering the traction roller, thereby ensuring that the traction roller can uniformly apply traction force to the cable, and is beneficial to better pulling the cable.

[0034] In view of the fact that during the cable pulling process, when the pulling speed changes or the movement direction of the cable changes, the cable may be impacted, therefore, as shown in Figure 2 and Figure 5As shown, the inner cavity of the guide ring 22 is provided with a plurality of arc blocks 23, and a plurality of springs 24 are arranged between the outer wall of the arc block 23 and the inner wall of the guide ring 22. When the cable is pulled, the cable is located in the circular cavity formed by the plurality of arc blocks 23. Due to the vibration or movement generated during the operation of the device, the cable will impact the guide ring 22. By interposing the arc block 23 between the cable and the guide ring 22, when the cable and the guide ring 22 impact, the cable is pressed against the spring 24 through the arc block 23, which buffers the cable and prevents the cable from rubbing against the surface of the guide ring 22 to wear off the material on the surface of the outer sheath, causing the outer sheath to thin, affecting the service life and performance of the cable.

[0035] In the process of pulling the cable, in order to prevent the cable from slipping between the cable and the conveying roller, therefore, as shown in Figure 1 、 Figure 2 and Figure 4 , the surface of the transmission roller 412 and the driven roller 423 is respectively provided with an anti-skid layer 6. In the process of pulling the cable, for the cable with a relatively smooth surface, or in the case of fast pulling speed and large pulling force, the anti-skid layer 6 is beneficial to increase the friction between the transmission roller 412 and the driven roller 423 and the cable, prevent the cable from slipping on the traction roller, and ensure the stable operation of the traction work

[0036] The cable pulling device of the utility model in specific use, when pulling the cable, the cable passes through the circular cavity formed by a plurality of arc blocks 23, the air gap formed between the transmission roller 412 and the driven roller 423 in sequence, then starts the motor to drive the transmission rod 411 to rotate, then the transmission rod 411 drives the transmission roller 412 fixedly connected therewith to rotate, since the cable is arranged between the transmission roller 412 and the driven roller 423, the driven roller 423 is driven to rotate by the friction between the transmission roller 412 and the cable, the traction of the cable is realized, when the small diameter cable is pulled, the handle is driven to rotate in the forward direction to make the two moving blocks 52 move inward on the surface of the lead screw 51, then the connecting rod 53 pushes the adjusting frame 421 to move downward, so that the driven roller 423 moves downward and approaches the transmission roller 412 below, the distance between the transmission roller 412 and the driven roller 423 is reduced to pull the small diameter cable, when the large diameter cable is pulled, the lead screw 51 is reversely rotated, then the moving block 52 moves outward on the surface of the lead screw 51, the connecting rod 53 pulls the adjusting frame 421 upward, so that the driven roller 423 moves upward, the distance between the transmission roller 412 and the driven roller 423 is increased to pull the large diameter cable.

[0037] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A cable pulling device comprising a base (1), characterised in that: The top input side of the base (1) is provided with a guide assembly (2), and the top output side of the base (1) is provided with a mounting frame (3). The inner cavity of the mounting frame (3) is provided with a traction assembly (4). The traction assembly (4) includes a first traction assembly (41) rotatably arranged below the inner cavity of the mounting frame (3). The inner cavity of the mounting frame (3) is slidably provided with a second traction assembly (42). The second traction assembly (42) is located above the first traction assembly (41). A lifting assembly (5) is arranged between the top of the second traction assembly (42) and the top of the inner cavity of the mounting frame (3). The traction assembly (4) is used for traction cable, and the lifting assembly (5) is used for driving the second traction assembly (42) to move up and down, adjusting the distance between the first traction assembly (41) and the second traction assembly (42).

2. The cable pulling device of claim 1, wherein: The first traction assembly (41) includes a transmission rod (411) rotatably arranged below the inner cavity of the mounting frame (3). One end of the traction assembly (4) is fixedly connected with the output end of the motor. The surface of the transmission rod (411) is fixedly provided with a transmission roller (412). The second traction assembly (42) includes an adjusting frame (421) slidably arranged in the inner cavity of the mounting frame (3). The inner cavity of the adjusting frame (421) is rotatably provided with a driven rod (422). The surface of the driven rod (422) is fixedly provided with a driven roller (423).

3. The cable pulling device of claim 1, wherein: The lifting assembly (5) includes a forward and reverse screw rod (51) rotatably arranged above the inner cavity of the mounting frame (3). The surface of the forward and reverse screw rod (51) is symmetrically provided with two moving blocks (52). The moving blocks (52) and the top of the adjusting frame (421) are rotatably provided with a connecting rod (53).

4. The cable pulling device of claim 1, wherein: The guide assembly (2) includes a stand (21) fixedly arranged on the top input side of the base (1). The top of the stand (21) is fixedly provided with a guide ring (22). When the cable is tractioned, the cable passes through the guide ring (22), the transmission roller (412) and the driven roller (423) in sequence to form an air slot.

5. A cable pulling device according to claim 4, characterised in that: The inner cavity of the guide ring (22) is provided with a plurality of arc-shaped blocks (23). The outer wall of the arc-shaped block (23) and the inner wall of the guide ring (22) are provided with a plurality of springs (24).

6. The cable pulling device of claim 2, wherein: The surfaces of the transmission roller (412) and the driven roller (423) are respectively provided with an anti-skid layer (6).

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