Speed-adjustable traction equipment for laying power cable

Abstract

The utility model discloses a speed-adjustable traction device for laying a power cable, relates to the technical field of traction devices, and aims to solve the problem of high cost caused by the fact that the traction speed of the conventional traction device is adjusted by changing a motor or additionally arranging an additional device. Comprising a box body, a through hole penetrating left and right is formed in the box body, a cable can penetrate through the through hole, and universal wheels with brake assemblies are further arranged at the bottom of the box body; a telescopic cylinder is further arranged in the box body, a mounting plate is arranged at the telescopic end of the telescopic cylinder, a mounting frame is connected to the mounting plate through a telescopic base, and a supporting roller is rotationally connected to the mounting frame; the supporting roller is arranged in the box body and matched with the rotating shaft and the driving wheel on the side wall of the box body, and the distance between the supporting roller and the driving wheel can be adjusted under driving of the telescopic cylinder so as to be matched with the diameter of a cable to be pulled; a rotating shaft is rotationally connected to the side wall of the box body, driving wheels corresponding to the supporting rollers in position are installed on the rotating shaft, and the rotating shaft is driven by a servo motor.

Description

Technical Field

[0001] The utility model relates to the technical field of traction equipment, in particular to an adjustable-speed traction equipment for laying power cables. Background Art

[0002] The traction equipment in power cable laying is a special mechanical equipment for power engineering construction, mainly used for safely and efficiently dragging and laying power cables (especially high-voltage, large-section or long-distance cables).

[0003] When the existing traction equipment changes the traction speed of the cable, it is necessary to change the frequency of the motor or add a speed increaser or a speed reducer at the same time; although the above methods can achieve the adjustment of the cable traction speed, they have high requirements for other equipment such as motors, thus increasing the production cost.

[0004] Therefore, this application provides an adjustable-speed traction equipment for laying power cables to meet the requirements. Summary of the Utility Model

[0005] The purpose of this application is to provide an adjustable-speed traction equipment for laying power cables, aiming to solve the problem that the existing traction equipment realizes the adjustment of the traction speed by changing the motor or adding external equipment, resulting in a high cost.

[0006] To achieve the above purpose, this application provides the following technical solution: an adjustable-speed traction equipment for laying power cables, including a box body, the box body is a hollow shell, and a box cover is hinged on the top of the box body. A through hole penetrating left and right is opened on the box body for the cable to pass through. A universal wheel with a brake assembly is also provided at the bottom of the box body;

[0007] An expansion cylinder is further arranged inside the box body. An installation plate is arranged at the expansion end of the expansion cylinder. The installation plate is connected with an installation frame through an expansion seat. A support roller is rotatably connected to the installation frame; by arranging the support roller inside the box body and cooperating with the rotating shaft and the driving wheel on the side wall of the box body, the distance between the support roller and the driving wheel can be adjusted under the drive of the expansion cylinder, so as to adapt to the diameter of the cable to be towed;

[0008] A rotating shaft is rotatably connected to the side wall of the box body. A driving wheel corresponding to the position of the support roller is installed on the rotating shaft. The rotating shaft is driven by a servo motor.

[0009] Preferably, the expansion seat includes a seat body and a sliding plate. The seat body is a shell with a transparent top. The sliding plate is slidably connected inside the seat body. A spring is further arranged between the sliding plate and the seat body. A pressure sensor is also arranged between the seat body and the installation plate.

[0010] Preferably, the rotating shaft includes an inner rod and an outer rod. The outer rod is sleeved on the inner rod, and the longitudinal section of the inner rod is flower-shaped. The driving wheel is installed on the outer rod. Multiple groups of driving wheels are arranged on the rotating shaft, and in combination with the electric push rod and the telescopic structure of the rotating shaft, driving wheels with different diameters are made to correspond to the position of the supporting roller, thereby changing the traction speed of the cable and increasing the adaptability of the equipment.

[0011] Preferably, an electric push rod is further provided on the inner wall of the box body. The telescopic end of the electric push rod is connected to the outer rod through a bearing seat. Driven by the electric push rod, the outer rod is driven to slide on the inner rod without affecting the rotation of the rotating shaft.

[0012] Preferably, multiple groups of driving wheels are provided, and their diameters are all different. By adjusting the corresponding positions of the driving wheels with different diameters and the supporting roller, the traction speed can be adjusted.

[0013] In summary, the technical effects and advantages of the present utility model are as follows:

[0014] In the present utility model, by arranging a supporting roller inside the box body and in combination with the rotating shaft and the driving wheel on the side wall of the box body, driven by the telescopic cylinder, the distance between the supporting roller and the driving wheel can be adjusted, thereby adapting to the diameter of the cable to be towed; multiple groups of driving wheels are arranged on the rotating shaft, and in combination with the electric push rod and the telescopic structure of the rotating shaft, driving wheels with different diameters are made to correspond to the position of the supporting roller, thereby changing the traction speed of the cable and increasing the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is an internal structural schematic diagram of the present utility model;

[0018] Figure 3 is a partial structural schematic diagram of the present utility model;

[0019] Figure 4 is a partial cross-sectional view of the present utility model.

[0020] In the figure: 1. Box body; 2. Through hole; 3. Servo motor; 4. Mounting plate; 5. Telescopic cylinder; 6. Telescopic seat; 7. Mounting frame; 8. Support roller; 9. Electric push rod; 10. Rotating shaft; 11. Bearing seat; 12. Driving wheel. Specific implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0022] Embodiment 1: Refer to Figures 1-4 An adjustable-speed traction device for laying power cables as shown, including a box body 1. The box body 1 is a hollow shell, and a box cover is hinged to the top of the box body 1. A through hole 2 penetrating left and right is opened on the box body 1 for the cable to pass through. A universal wheel with a brake assembly is also provided at the bottom of the box body 1;

[0023] A telescopic cylinder 5 is further provided inside the box body 1. An installation plate 4 is provided at the telescopic end of the telescopic cylinder 5. The installation plate 4 is connected to an installation frame 7 through a telescopic seat 6. A support roller 8 is rotatably connected to the installation frame 7;

[0024] The telescopic seat 6 includes a seat body and a sliding plate. The seat body is a shell with a transparent top. The sliding plate is slidably connected inside the seat body, and a spring is further provided between the sliding plate and the seat body. A pressure sensor is also provided between the seat body and the installation plate 4. Under the action of the pressure sensor, the acting force of the cable between the support roller 8 and the driving wheel 12 can be detected, so as to adjust the friction force between the driving wheel 12 and the cable, enabling it to smoothly traction and convey the cable.

[0025] A rotating shaft 10 is rotatably connected to the side wall of the box body 1. A driving wheel 12 corresponding to the position of the support roller 8 is installed on the rotating shaft 10. The rotating shaft 10 is driven by a servo motor 3.

[0026] The rotating shaft 10 includes an inner rod and an outer rod. The outer rod is sleeved on the inner rod, and the longitudinal section of the inner rod is flower-shaped. The driving wheel 12 is installed on the outer rod.

[0027] An electric push rod 9 is further provided on the inner wall of the box body 1. The telescopic end of the electric push rod 9 is connected to the outer rod through a bearing seat 11. Driven by the electric push rod 9, the outer rod slides on the inner rod without affecting the rotation of the rotating shaft 10.

[0028] The driving wheels 12 are provided with multiple groups and have different diameters. By adjusting the positions of the driving wheels 12 with different diameters corresponding to the supporting rollers 8, the traction speed can be adjusted.

[0029] The working principle of the present utility model: During use, the device is moved to a specified position and fixed through the universal wheels at the bottom of the box body 1. One end of the cable to be towed is passed through the through hole 2, so that the cable inside the box body 1 falls on the supporting roller 8. Control the telescopic cylinder 5 to work and extend, and the electric mounting plate 4 moves upward, thereby driving the supporting roller 8 to move towards the driving wheel 12, so that the cable is stuck between the supporting roller 8 and the driving wheel 12. The telescopic cylinder 5 continues to work and extend, so that the telescopic seat 6 contracts. The pressure received by the pressure sensor is the same as the extrusion force on the cable by the supporting roller 8 and the driving wheel 12, increasing the friction between the cable and the supporting roller 8 and the driving wheel 12, facilitating the traction of the cable. Control the servo motor 3 to work, drive the driving wheel 12 to rotate through the rotating shaft 10, thereby completing the traction of the cable;

[0030] When the traction speed needs to be adjusted, control the telescopic cylinder 5 to retract, control the electric push rod 9 to work and extend, drive the outer rod of the rotating shaft 10 to move through the bearing seat 11, thereby adjusting the positions of the driving wheels 12 with different diameters corresponding to the supporting roller 8, so as to achieve the adjustment of the traction speed.

[0031] The electromechanical connection involved in the present utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to well-known common sense.

[0032] The components not described in detail in this article are prior art.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An adjustable speed traction device for laying power cables, characterized in that: The invention comprises a box body (1), wherein the box body (1) is a shell with a hollow interior, and a box cover is hingedly connected to the top of the box body (1). The box body (1) is provided with through holes (2) extending left and right for cables to pass through, and the bottom of the box body (1) is also provided with a universal wheel with a brake assembly; A telescopic cylinder (5) is further provided inside the box body (1), a mounting plate (4) is provided on the telescopic end of the telescopic cylinder (5), the mounting plate (4) is connected to a mounting frame (7) via a telescopic seat (6), and a support roller (8) is rotatably connected to the mounting frame (7); A rotating shaft (10) is rotatably connected to the side wall of the box body (1), a driving wheel (12) corresponding to the position of the supporting roller (8) is mounted on the rotating shaft (10), and the rotating shaft (10) is driven by a servo motor (3).

2. The adjustable speed traction device for laying power cables according to claim 1, characterized in that: The telescopic seat (6) comprises a seat body and a slide plate, the seat body being a shell with a transparent top, the slide plate being slidably connected within the seat body, a spring being provided between the slide plate and the seat body, and a pressure sensor being provided between the seat body and the mounting plate (4).

3. The adjustable speed traction device for laying power cables according to claim 1, characterized in that: The rotating shaft (10) comprises an inner rod and an outer rod, the outer rod is sleeved on the inner rod, and the longitudinal section of the inner rod is a flower shape, and the driving wheel (12) is mounted on the outer rod.

4. The adjustable speed traction device for laying power cables according to claim 3, characterized in that: An electric push rod (9) is also provided on the inner wall of the box body (1), and the telescopic end of the electric push rod (9) is connected to the outer rod via a bearing seat (11). When driven by the electric push rod (9), the outer rod is driven to slide on the inner rod without affecting the rotation of the rotating shaft (10).

5. The adjustable speed traction device for laying power cables according to claim 1, characterized in that: The driving wheels (12) are provided in multiple groups, and the diameters thereof are all different. By adjusting the positions of the driving wheels (12) of different diameters to correspond to the supporting rollers (8), the traction speed can be adjusted.

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