Hydraulically-driven cable winding and unwinding device

Abstract

The utility model relates to the field of cable conveying devices, in particular to a hydraulically-driven cable winding and unwinding device. The device comprises a clamping and conveying unit used for clamping and conveying the cable forwards or backwards and a power assembly used for driving the clamping and conveying unit. The clamping and conveying unit comprises a left clamping and conveying piece and a right clamping and conveying piece, the clamping and conveying unit is provided with an adjusting assembly capable of increasing or decreasing the distance between the clamping and conveying pieces. An existing cable take-up and pay-off device has the problem that a cable is prone to being damaged. The hydraulically-driven cable take-up and pay-off device provided by the utility model is not easy to damage a cable.

Description

Technical Field

[0001] The utility model relates to the field of cable conveying devices, in particular to a hydraulically driven cable retracting and releasing device. Background Art

[0002] Cable laying is the process of laying cables from one power source (e.g., a substation, distribution box, etc.) to another (e.g., a power-consuming device, another distribution box, etc.) according to design requirements. It is a critical construction step in fields such as power engineering and communications engineering.

[0003] The traditional method of cable laying is manual laying, which involves manually dragging the cable for laying. However, this method is inefficient, inconvenient to operate in a complex laying environment, and difficult to lay cables with large cross-sections and heavy weight. Therefore, people have developed cable retracting and releasing devices (also known as cable clamping devices, etc.) for laying cables, such as the content disclosed in the authorization announcement number CN202564876U and the main body name "A Cable Clamping Device": The cable clamping device includes a base, two brackets mounted on the base, and two pressure rollers arranged up and down between the two brackets through bearings and bearing seats. The surface of the pressure roller is an arc shape that is thin in the middle and thick at both ends. The shaft heads of the two pressure rollers have at least one transmission shaft that extends outward through the bearings and bearing seats. A clamping bolt that is threadedly engaged with the shaft head is provided on the crossbeam of the bracket. When in use, the connection part between the transmission shaft and the external power source is located on one side of the pressure roller. A manual operating handle or other mechanical power device is connected to the transmission shaft. The cable is placed between the grooves of the pressure rollers. The cable moves forward through the external power applied to the transmission shaft and the friction between the pressure rollers and the cable. The distance between the pressure rollers is adjusted by manually operating the tightening bolts. The tightening force is difficult to control and is prone to cable wear.

[0004] Therefore, the existing cable retracting and releasing device has the problem of easily damaging the cable. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a hydraulically driven cable retracting and releasing device which is not prone to damaging the cable.

[0006] In order to solve the above technical problems, the utility model provides a hydraulically driven cable retracting and releasing device comprising a clamping unit for clamping and conveying the cable forward or backward and a power assembly for driving the clamping unit; the clamping unit comprises a left clamping member and a right clamping member whose spacing can be changed; two hydraulic motors connected to the power assembly and a hydraulic pump providing liquid pressure to the two hydraulic motors; an adjusting assembly capable of increasing or decreasing the spacing of the clamping members is installed on the clamping unit; the adjusting assembly comprises an upper adjusting member installed on the top of the clamping unit and a lower adjusting member installed on the bottom of the clamping unit; the upper adjusting member and the lower adjusting member both comprise a horizontal capped rod perpendicular to the central axis of the cable, a left U-shaped frame fixedly installed on the top or bottom of the left clamping member and a left U-shaped frame fixedly installed on the top or bottom of the right clamping member The right U-shaped frame of the left U-shaped frame; the openings of the left U-shaped frame and the right U-shaped frame are both facing the top or bottom of the clamping unit; the horizontal capped rod includes a horizontal slide bar and a circular plate vertically fixedly installed on the right side of the horizontal slide bar; the left end of the horizontal slide bar sequentially passes through the two vertical ends of the right U-shaped frame and the two vertical ends of the left U-shaped frame, and then passes through the left end of the left U-shaped frame to form a passing-out section, and the passing-out section includes a flat part and a threaded part from right to left, and the circular plate is fixedly connected to the right U-shaped frame; the flat part of the passing-out section is slidably sleeved with a first spring plug, a reset spring, and a second spring plug from right to left, the right end of the reset spring is fixedly connected to the left side of the first spring plug, the left end of the reset spring is fixedly connected to the right side of the second spring plug, and the right side of the first spring plug is fixedly connected to the left U-shaped frame; a first nut is threadedly connected to the threaded part of the passing-out section.

[0007] As a further improvement of the present invention, the left clamping member includes a U-shaped left bracket, and the right clamping member includes a U-shaped right bracket. The left and right brackets are symmetrically arranged. A driven multi-V belt pulley is rotatably mounted between the front ends of the two vertical ends of the left and right brackets, and a driving multi-V belt pulley is rotatably mounted between the rear ends of the two vertical ends of the left and right brackets. A multi-V belt is wrapped around both the driven and driving multi-V belt pulleys. The cable is retracted and released inside the device, and is protected on all sides. Compared with devices that are completely exposed and unprotected, this ensures the personal safety of operators and reduces safety risks.

[0008] Preferably, the poly-V belt is made of rubber material, which can effectively compress the cable while not easily causing damage to the cable.

[0009] Preferably, the two hydraulic motors are respectively installed at the rear ends of the tops of the left bracket and the right bracket; the output shafts of the two hydraulic motors are respectively connected to the axles of the active multi-V belt pulleys in the left bracket and the axles of the active multi-V belt pulleys in the right bracket.

[0010] As a further improvement of the present invention, a limit block for limiting the minimum spacing of the clamping and feeding parts is slidably installed on the portion of the horizontal slide bar located between the two vertical ends of the right U-shaped frame and the two vertical ends of the left U-shaped frame.

[0011] Preferably, a guide assembly for guiding the cable is provided at the rear of the pinching unit.

[0012] Preferably, the guide assembly includes left and right guide members for limiting the movement of the cable in the left and right directions; the left and right guide members include a left guide roller installed between the rear ends of the two vertical ends of the left bracket, and a right guide roller installed between the rear ends of the two vertical ends of the right bracket; the center axis of the left guide roller and the center axis of the right guide roller are both perpendicular to the center axis of the cable.

[0013] The beneficial effects of the present invention are as follows: the hydraulically driven cable retracting device provided by the present invention is not easy to damage the cable. By twisting the first nut, the first spring plug, the return spring, the second spring plug and the left U-shaped frame can slide from left to right on the flat part of the outlet section, so that the left clamping member can slide from left to right, so that the clamping distance between the left clamping member and the right clamping member becomes smaller, so that the clamping unit can clamp the cable, but at the same time of clamping, the return spring can play a buffering role to ensure the offset during the cable transportation process, so it can play a certain buffering role when the clamping force is too tight, so that the cable is not easily damaged. At the same time, the device uses a hydraulic pump and a hydraulic motor as power components, so that the clamping unit can not only transport the cable forward to release the cable, but also transport the cable backward to retract the cable, and the power it provides is also more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model without the hydraulic pump;

[0015] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle after the hydraulic pump is hidden;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 This is a top view of the present invention without the hydraulic pump;

[0018] Figure 5 This is a left side view of the present invention after the hydraulic pump is hidden;

[0019] Figure 6 This is a right side view of the present invention after the hydraulic pump is hidden;

[0020] Figure 7 This is a top view of the present invention without the hydraulic pump;

[0021] Figure 8 This is a schematic diagram of the internal structure of the utility model from a right side perspective after the hydraulic pump is hidden;

[0022] The names of the components corresponding to the marks in the above drawings are:

[0023] 1. Pinch unit; 101A, left bracket; 101B, right bracket; 102, driven multi-V belt pulley; 103, driving multi-V belt pulley; 104, multi-V belt;

[0024] 2. Power assembly; 201. Hydraulic motor; 202. Hydraulic pump;

[0025] 3. Adjustment assembly; 301, horizontal capped rod; 302A, left U-shaped frame; 302B, right U-shaped frame;

[0026] 303, first spring plug; 304, return spring; 305, second spring plug; 306, first nut;

[0027] 307, second nut; 308, limit block;

[0028] 4. Guide assembly; 401. Upper guide roller; 402. Lower guide roller; 403. Left guide roller; 404. Right guide roller. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The directional words such as "up", "down", "left", "right", "front", "back", "top", "bottom" etc. mentioned in this utility model are all Figure 4 、 Figure 5 、 Figure 6 as well as Figure 7 The directions defined by the cross-shaped orientation mark are used as a reference. All orientation words in this utility model are described based on this definition and do not change the directions they represent when the angle of the figure changes.

[0031] like Figures 1 to 8As shown, the utility model provides a hydraulically driven cable retracting and releasing device comprising a clamping unit 1 for clamping and conveying the cable forward or backward and a power assembly 2 for driving the clamping unit 1; the clamping unit 1 comprises a left clamping member and a right clamping member with variable spacing; the left clamping member comprises a U-shaped 101A, and the right clamping member comprises a U-shaped right bracket 101B, 101A and the right bracket 101B are symmetrically arranged, the openings of the left bracket 101A and the right bracket 101B are opposite, and the front ends of the two vertical ends of the left bracket 101A and the right bracket 101B are opposite. A driven multi-V belt pulley 102 is rotatably installed between the ends, and a driving multi-V belt pulley 103 is rotatably installed between the rear ends of the two vertical ends of the left bracket 101A and the right bracket 101B. A multi-V belt 104 is wound around the driven multi-V belt pulley 102 and the driving multi-V belt pulley 103. The multi-V belt 104 is made of rubber material. When the wire diameter of the cable used during operation is relatively fixed, the side of the multi-V belt 104 that contacts the cable can also be provided with an arc bottom groove that matches the outer diameter of the cable to further limit the position of the cable. The power assembly 2 is connected to the two hydraulic motors 201 of the clamping unit 1 and the hydraulic pump 202 that provides liquid pressure to the two hydraulic motors 201; the two hydraulic motors 201 are respectively installed at the rear ends of the tops of the left bracket 101A and the right bracket 101B; the output shafts of the two hydraulic motors 201 are respectively connected to the axles of the active multi-V belt pulley 103 in the left bracket 101A and the axles of the active multi-V belt pulley 103 in the right bracket 101B through couplings.

[0032] like Figures 1 to 8As shown, the pinching unit 1 is equipped with an adjustment assembly 3 capable of increasing or decreasing the spacing between the pinching members. The adjustment assembly 3 includes an upper adjustment member mounted on the top of the pinching unit 1 and a lower adjustment member mounted on the bottom of the pinching unit 1. Both the upper adjustment member and the lower adjustment member include a horizontal capped rod 301 perpendicular to the central axis of the cable, a left U-shaped frame 302A fixedly mounted on the top or bottom of the left pinching member, and a right U-shaped frame 302B fixedly mounted on the top or bottom of the right pinching member. The openings of the left U-shaped frame 302A and the right U-shaped frame 302B are both oriented toward the top or bottom of the pinching unit 1. The left U-shaped frame 302A of the upper adjustment member is fixedly mounted on the top of the left pinching member, and the right U-shaped frame 302B of the upper adjustment member is fixedly mounted on the top of the right pinching member. The openings of the left U-shaped frame 302A and the right U-shaped frame 302B are both oriented toward the top of the pinching unit 1. The left U-shaped frame 302A of the lower adjusting member is fixedly installed at the bottom of the left clamping member, and the right U-shaped frame 302B of the lower adjusting member is fixedly installed at the bottom of the right clamping member, and the openings of the left U-shaped frame 302A and the right U-shaped frame 302B are both facing the bottom of the clamping unit 1. The horizontal capped rod 301 includes a horizontal sliding rod and a circular plate vertically fixedly installed on the right side of the horizontal sliding rod; the left end of the horizontal sliding rod sequentially passes through the two vertical ends of the right U-shaped frame 302B and the two vertical ends of the left U-shaped frame 302A, and then passes through the left end of the left U-shaped frame 302A to form a passing-out section, and the passing-out section includes a flat part and a threaded part from right to left, and the circular plate is fixedly connected to the right U-shaped frame 302B; the first spring plug 303, the return spring 304, and the second spring plug 305 are slidably sleeved on the flat part of the passing-out section from right to left, the right end of the return spring 304 is fixedly connected to the left side of the first spring plug 303, and the left end of the return spring 304 is fixedly connected to the second spring plug The right side of 305 is fixedly connected, and the right side of the first spring plug 303 is fixedly connected to the left U-shaped frame 302A; the first nut 306 and the second nut 307 are threadedly connected from right to left on the threaded part of the protruding section, the first nut 306 is a high-strength large hexagonal nut, model GB / T229-2006; the second nut 307 is a hexagonal thin nut, model GB / T61721-2016; the horizontal sliding rod is located between the two vertical ends of the right U-shaped frame 302B and the two vertical ends of the left U-shaped frame 302A, and a limit block 308 is slidably installed on the part for limiting the minimum distance between the left bracket 101A and the right bracket 101B of the clamping and feeding part.

[0033] like Figures 1 to 8As shown, a guide assembly 4 for guiding the cable is provided at the rear of the pinching unit 1. The guide assembly 4 includes left and right guide members for limiting the left-right movement of the cable. The left and right guide members include a left guide roller 403 mounted between the rear ends of the two vertical ends of the left bracket 101A, and a right guide roller 404 mounted between the rear ends of the two vertical ends of the right bracket 101B. When the diameter of the cable used during operation is relatively fixed, upper and lower guide members for limiting the vertical movement of the cable can also be provided at the rear of the pinching unit 1. The upper and lower guide members include a horizontal upper guide roller 401 mounted on the top of the left bracket 101A and the right bracket 101B, and a horizontal lower guide roller 402 mounted on the bottom of the left bracket 101A and the right bracket 101B. The central axes of the upper guide roller 401, the lower guide roller 402, the left guide roller 403, and the right guide roller 404 are all perpendicular to the central axis of the cable. A guide opening is formed between the upper guide roller 401 , the lower guide roller 402 , the left guide roller 403 and the right guide roller 404 .

[0034] The working principle of the present invention is as follows: the device is installed on the equipment that requires the cable, and then one end of the cable is passed from front to back between the clamping unit 1, that is, between the two multi-V belts 104 located in the left bracket 101A and the right bracket 101B, and then passed out from the guide opening of the guide assembly 4.

[0035] Tightening the first nut 306 causes it to slide the second spring plug 305 from left to right on the flat portion of the exit section. The return spring 304 gradually compresses and drives the first spring plug 303 to slide from left to right on the flat portion of the exit section. The first spring plug 303 drives the left U-shaped frame 302A to slide from left to right on the flat portion of the exit section. The left U-shaped frame 302A drives the left bracket 101A closer to the right bracket 101B, reducing the spacing between the clamping units 1 and clamping the cables. The limit block 308 prevents the spacing between the left bracket 101A and the right bracket 101B from being too small. Tighten the second nut 307 until it is close to the first nut 306. To increase the spacing, simply tighten the first nut 306 in the opposite direction.

[0036] After tightening the cable, the hydraulic pump 202 is activated to drive the left hydraulic motor 201 in forward rotation and the right hydraulic motor 201 in reverse rotation. The clamping assembly begins to convey the cable forward, allowing it to be released. The upper guide roller 401, lower guide roller 402, left guide roller 403, and right guide roller 404 all contact the cable, guiding and limiting the cable while facilitating its passage. When the cable reaches its usable length, the hydraulic pump 202 is adjusted to stop the hydraulic motor 201. After the operation is completed, the hydraulic pump 202 is used to drive the left hydraulic motor 201 in reverse rotation and the right hydraulic motor 201 in forward rotation, conveying the remaining cable backward for cable retraction. When the cable returns to the desired length, the hydraulic pump 202 is turned off, and the device stops operating.

[0037] It should be noted that the present invention is not limited to the specific structures shown in the drawings in the above embodiments, and various changes can be made thereto within the scope of knowledge possessed by ordinary technicians in this field.

Claims

1. A hydraulically driven cable retracting device, characterized in that: The invention comprises a clamping unit (1) for clamping and conveying a cable forward or backward, and a power assembly (2) for driving the clamping unit (1); the clamping unit (1) comprises a left clamping member and a right clamping member with a variable spacing; the power assembly (2) and the clamping unit (1) are connected in a transmission manner to two hydraulic motors (201), and a hydraulic pump (202) for providing liquid pressure to the two hydraulic motors (201); The clamping unit (1) is provided with an adjustment assembly (3) capable of increasing or decreasing the spacing between the clamping members; the adjustment assembly (3) comprises an upper adjustment member mounted on the top of the clamping unit (1) and a lower adjustment member mounted on the bottom of the clamping unit (1); the upper adjustment member and the lower adjustment member both comprise a horizontal capped rod (301) perpendicular to the central axis of the cable, a left U-shaped frame fixedly mounted on the top or bottom of the left clamping member, and a right U-shaped frame fixedly mounted on the top or bottom of the right clamping member; the openings of the left U-shaped frame and the right U-shaped frame are both oriented towards the top or bottom of the clamping unit (1); the horizontal capped rod (301) comprises a horizontal slide bar and a circular plate fixedly mounted on the right side of the horizontal slide bar; the left end of the horizontal slide bar is in turn After passing through the two vertical ends of the right U-shaped frame and the two vertical ends of the left U-shaped frame, it passes through the left end of the left U-shaped frame to form a passing section. The passing section includes a flat part and a threaded part from right to left. The circular plate is fixedly connected to the right U-shaped frame. A first spring plug (303), a return spring (304), and a second spring plug (305) are slidably sleeved on the flat part of the passing section from right to left. The right end of the return spring (304) is fixedly connected to the left side of the first spring plug (303), the left end of the return spring (304) is fixedly connected to the right side of the second spring plug (305), and the right side of the first spring plug (303) is fixedly connected to the left U-shaped frame. A first nut (306) is threadedly connected to the threaded part of the passing section.

2. A hydraulically driven cable retracting device according to claim 1, characterized in that: The left clamping member includes a U-shaped left bracket (101A), and the right clamping member includes a U-shaped right bracket (101B). The left bracket (101A) and the right bracket (101B) are symmetrically arranged on the left and right sides. A driven multi-V belt pulley (102) is rotatably installed between the front ends of the two vertical ends of the left bracket (101A) and the right bracket (101B). A driving multi-V belt pulley (103) is rotatably installed between the rear ends of the two vertical ends of the left bracket (101A) and the right bracket (101B). A multi-V belt (104) is wound around the driven multi-V belt pulley (102) and the driving multi-V belt pulley (103).

3. A hydraulically driven cable retracting device according to claim 2, characterized in that: The multi-V belt (104) is made of rubber material.

4. A hydraulically driven cable retracting device according to claim 2, characterized in that: The two hydraulic motors (201) are respectively installed at the rear ends of the tops of the left bracket (101A) and the right bracket (101B); The output shafts of the two hydraulic motors (201) are respectively connected to the axle of the active multi-V belt pulley (103) in the left bracket (101A) and the axle of the active multi-V belt pulley (103) in the right bracket (101B).

5. A hydraulically driven cable retracting device according to any one of claims 1 to 4, characterized in that: A limit block (308) for limiting the minimum spacing of the clamping and conveying parts is slidably installed on the portion of the horizontal sliding rod located between the two vertical ends of the right U-shaped frame and the two vertical ends of the left U-shaped frame.

6. The hydraulically driven cable retracting device according to claim 2, characterized in that: A guide assembly (4) for guiding the cable is provided at the rear of the pinching unit (1).

7. The hydraulically driven cable retracting device according to claim 6, characterized in that: The guide assembly (4) includes left and right guide members for limiting the movement of the cable in left and right directions; The left and right guide members include a left guide roller (403) installed between the rear ends of the two vertical ends of the left bracket (101A), and a right guide roller (404) installed between the rear ends of the two vertical ends of the right bracket (101B); The central axis of the left guide roller (403) and the central axis of the right guide roller (404) are both perpendicular to the central axis of the cable.

Images