High-voltage line aerial tensioning device

Abstract

The utility model discloses a high-voltage wire aerial tensioning device, which belongs to the technical field of power construction and comprises a hoop, support frames, a wire drawing roller A, an adjusting groove, a sliding frame and a wire drawing roller B. The support frames are fixedly mounted on the front and rear sides of the side of the hoop, the wire drawing roller A is rotatably arranged between the support frames through a bearing, the adjusting groove is embedded in the opposite surfaces of the support frames, and the sliding frame is arranged on the adjusting groove. Sliding frames are slidably arranged on the opposite faces in the adjusting grooves through sliding blocks, and a wire drawing roller B is rotationally arranged between the opposite faces of the sliding frames through bearings. According to the utility model, the other worker simultaneously screws two adjusting screw rods to rotate in a threaded occlusion manner at the inner side of a threaded groove, pushes a sliding frame to slide downwards at the inner side of an adjusting groove, drives a wire drawing roller B to contact with a high-voltage cable, and limits the high-voltage cable between a wire drawing roller A and the wire drawing roller B; and a worker can conveniently and freely adjust the distance between the wire drawing roller B and the wire drawing roller A, and subsequent tensioning treatment on cables of different specifications is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power construction, in particular to a high-voltage line aerial tensioning device. Background Art

[0002] Power construction is a highly specialized engineering activity that involves the construction, installation, maintenance and overhaul of equipment and facilities in the power system. During the construction process, various power equipment needs to be accurately installed, including transformers, switchgear, cables, etc., to ensure that the connection between the equipment is firm and reliable to meet the operation requirements of the power system.

[0003] Among them, after searching, it was found that the application number is CN201820353920.5, a tensioning device capable of tightening a high-voltage line, the tensioning device capable of tightening a high-voltage line has the setting of an adjustment device, which can adjust the distance between the mounting frame 1 and the mounting frame 2, so that wires of different thicknesses and diameters can be compressed and transmitted, and the transmission line can be conveniently located between the transmission gears or between the pulley blocks to form a clamping force, and the high-voltage transmission line is clamped by pressure to prevent the transmission line from falling off the mounting frame; wherein, the shortcomings are as follows:

[0004] When the staff uses this tensioning device that can tighten the high-voltage wire, when tightening the high-voltage cable, the controller is connected to the control end of an electric cylinder to achieve synchronous horizontal gap adjustment between the mounting frame 1 and the mounting frame 2, which is convenient for conveying high-voltage cables of different specifications. When the high-voltage cable is conveyed through the pulley block, since the outer ring surface of the pulley block is smooth and there is no limit on both sides of the pulley block, it is easy to cause the high-voltage cable to deviate during transportation and slip out of the pulley block and fall, affecting the construction efficiency of tightening the high-voltage wire, making this type of tensioning device that can tighten the high-voltage wire have a relatively poor effect on the limited transportation of the high-voltage wire. Utility Model Content

[0005] The purpose of the utility model is to provide a high-voltage wire aerial tensioning device in order to solve the problem that the tensioning device capable of tensioning the high-voltage wire has a relatively poor limiting and conveying effect on the high-voltage wire.

[0006] The technical solution adopted by the utility model is as follows: an aerial tensioning device for a high-voltage line, comprising a clamp, a support frame, a wire-pulling roller A, an adjusting groove, a sliding frame and a wire-pulling roller B, a support frame is fixedly installed on the front and rear sides of the side of the clamp, a wire-pulling roller A is rotatably arranged between the support frames through bearings, the opposite surfaces of the support frames are embedded with adjustment grooves, the opposite surfaces inside the adjustment grooves are slidably arranged with sliding frames through sliders, a wire-pulling roller B is rotatably arranged between the opposite surfaces of the sliding frames through bearings, a spacing adjustment mechanism is arranged on the outside of the support frame for convenient tensioning of cables of different specifications, a compression conveying and tensioning mechanism is arranged on the outside of the wire-pulling roller B for stably limiting the conveying of cables, and a rotation limiting tensioning mechanism is arranged on the outside of the sliding frame for tensioning cables of different lengths.

[0007] Wherein, the spacing adjustment mechanism is composed of a thread groove and an adjustment screw;

[0008] A thread groove is embedded above the support frame near the upper side of the adjusting groove, and an adjusting screw is rotatably arranged above the sliding frame through a bearing, and the adjusting screw thread is rotatably arranged inside the thread groove.

[0009] The rotation limit tensioning mechanism is composed of a locking plate, a damping telescopic rod A, a push handle, a limit block and a limit slot;

[0010] A locking disk is slidably arranged at the rear of the wire-pulling roller B, a damping telescopic rod A is fixedly installed between the front of the locking disk and the rear of the inner wall of the wire-pulling roller B, and a spring is matched with the outer side of the damping telescopic rod A, and limiting blocks are fixedly installed around the front of the locking disk, and a limiting slot is embedded in the rear of one of the sliding frames. There are several limiting slots, which are equidistantly arranged around, and the limiting blocks are slidably arranged on the inner side of the limiting slots.

[0011] The compression conveying and tensioning mechanism is composed of a wire groove, a damping telescopic rod B and a rubber pressure pad;

[0012] The outer ring of the wire-drawing roller A is embedded with a wire groove, and the wire groove is arranged in an arc-shaped ring shape. The outer ring of the wire-drawing roller B is fixedly installed with a rubber pressure pad, and the rubber pressure pad is arranged in an arc-shaped ring shape. The rubber pressure pad is made of butadiene rubber. A damping telescopic rod B is fixedly installed between the inner ring of the rubber pressure pad and the outer ring of the wire-drawing roller B. There are several damping telescopic rods B, which are arranged equidistantly around, and a spring is matched on the outside of the damping telescopic rod B.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. This type of high-voltage line aerial tensioning device is equipped with a spacing adjustment mechanism, which allows the staff to cooperate between the thread groove and the adjusting screw, and use the thread engagement rotation of the adjusting screw on the inner side of the thread groove to drive the sliding frame to slide freely on the inner side of the adjusting groove, so that the staff can freely adjust the spacing between the wire pulling roller B and the wire pulling roller A, which is convenient for the subsequent tensioning of cables of different specifications.

[0015] 2. This type of high-voltage line aerial tensioning device is equipped with a rotating limit tensioning mechanism, which allows the staff to cooperate between the locking plate, the damping telescopic rod A, the push handle, the limit block and the limit slot. The locking plate drives the limit block to slide freely inside several limit slots through the damping telescopic rod A and the outer spring, which makes it convenient for the staff to quickly tighten high-voltage cables of different lengths.

[0016] 3. This type of high-voltage line aerial tensioning device is equipped with a compression conveying and tensioning mechanism, which enables the staff to cooperate between the wire trough, the damping telescopic rod B and the rubber pressure pad. When the high-voltage cable is conveyed between the wire pulling roller B and the wire pulling roller A, the rubber pressure pad will be squeezed to drive the damping telescopic rod B and the outer spring to contract, so that the contracted damping telescopic rod B and the outer spring produce a reverse thrust on the rubber pressure pad, and the high-voltage cable is limited to the inner side of the wire trough for a stable limited guiding conveying method, thereby improving the effect of stable limited conveying and anti-loosening of the high-voltage cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the high-voltage wire tensioning device of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the medium and high voltage line tensioning device of the utility model;

[0019] Figure 3 This is a schematic diagram of the side cross-sectional structure of the high-voltage wire tensioning device of the utility model;

[0020] Figure 4 For the utility model Figure 3 A in the middle is an enlarged schematic diagram of the structure.

[0021] Markings in the figure: 1. Clamp; 101. Support frame; 102. Wire drawing roller A; 103. Wire guide groove; 104. Adjustment groove; 105. Thread groove; 2. Sliding frame; 201. Adjustment screw; 202. Wire drawing roller B; 203. Locking disk; 204. Damping telescopic rod A; 205. Push handle; 206. Limit block; 207. Limit slot; 3. Damping telescopic rod B; 301. Rubber pressure pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the utility model:

[0024] Example 1: Reference Figure 1-Figure 4 A high-voltage line aerial tensioning device comprises a clamp 1, a support frame 101, a wire drawing roller A102, an adjusting groove 104, a sliding frame 2 and a wire drawing roller B202. The support frame 101 is fixedly installed on the front and rear sides of the side of the clamp 1, and the wire drawing roller A102 is rotatably arranged between the support frames 101 through bearings. The opposite surfaces of the support frame 101 are embedded with adjustment grooves 104, and the sliding frames 2 are slidably arranged on the opposite surfaces of the adjusting grooves 104 through sliders. The wire drawing roller B202 is rotatably arranged between the opposite surfaces of the sliding frames 2 through bearings. A spacing adjustment mechanism is arranged on the outer side of the support frame 101 for facilitating the tensioning of cables of different specifications. A compression conveying tensioning mechanism for stably limiting the conveying of cables is arranged on the outer side of the wire drawing roller B202, and a rotation limiting tensioning mechanism for tensioning cables of different lengths is arranged on the outer side of the sliding frame 2.

[0025] Reference Figure 1-Figure 4 , further, the spacing adjustment mechanism is composed of a thread groove 105 and an adjusting screw 201;

[0026] A threaded groove 105 is embedded above the support frame 101 near the adjusting groove 104, and an adjusting screw 201 is rotatably arranged above the sliding frame 2 through a bearing, and the adjusting screw 201 is threadedly engaged and rotatably arranged inside the threaded groove 105. When the staff needs to lay high-voltage cables at high altitude, they drive a platform crane to the construction site, and let two staff members stand on the two platforms respectively. After the two ends of the cable and the staff members are lifted to the two opposite poles by the platform crane, the two support frames 101 are fixed on the two poles by the clamps 1 respectively. On the outside of two adjacent electric poles, after placing the two ends of the high-voltage line above the wire-pulling roller A102, another staff member simultaneously turns the two adjusting screws 201 to engage and rotate the threads inside the thread groove 105, pushing the sliding frame 2 to slide downward on the inside of the adjustment groove 104, driving the wire-pulling roller B202 to contact the high-voltage cable and limit the high-voltage cable between the wire-pulling roller A102 and the wire-pulling roller B202, so that the staff can freely adjust the distance between the wire-pulling roller B202 and the wire-pulling roller A102, and facilitate the subsequent tensioning of cables of different specifications.

[0027] Reference Figure 3-Figure 4, further, the rotation limit tensioning mechanism is composed of a locking disk 203, a damping telescopic rod A204, a push handle 205, a limit block 206 and a limit slot 207;

[0028] A locking plate 203 is slidably provided inside the rear of the wire-pulling roller B202, a damping telescopic rod A204 is fixedly installed between the front of the locking plate 203 and the rear of the inner wall of the wire-pulling roller B202, and a spring is matched on the outside of the damping telescopic rod A204, and a limiting block 206 is fixedly installed around the front of the locking plate 203, and a limiting card slot 207 is embedded in the rear of one of the sliding frames 2. There are several limiting card slots 207, which are equidistantly arranged around, and the limiting block 206 is slidably arranged on the inner side of the limiting card slot 207. When the staff limit the two ends of the high-voltage cable between the wire-pulling roller A102 and the wire-pulling roller B202 of two adjacent electric poles respectively, the two staff members push the locking plate 203 at the same time to drive the damping telescopic rod A204. After the outer spring expands and the limit block 206 slides out of the limit slot 207, the push handle 205 is pushed to drive the wire-pulling roller B202 to rotate through the bearing, and the high-voltage cable is transported between the wire-pulling roller B202 and the wire-pulling roller A102, so that the wire-pulling roller A102 rotates through the bearing. After the high-voltage cable is tightened and transported to an appropriate length, the staff pushes the locking plate 203 in the opposite direction to make the damping telescopic rod A204 and the outer spring contract. The locking plate 203 drives the limit block 206 to slide into the inner side of the relative limit slot 207, and the wire-pulling roller B202 is limited and fixed. After the high-voltage cable is limited, the staff will carry out construction processing on the extra parts at both ends of the high-voltage cable, so that the staff can freely and quickly tighten high-voltage cables of different lengths.

[0029] Reference Figure 2-Figure 3 , further, the compression conveying tensioning mechanism is composed of a wire groove 103, a damping telescopic rod B3 and a rubber pressure pad 301;

[0030] The outer ring of the wire-drawing roller A102 is embedded with a wire groove 103, and the wire groove 103 is arranged in an arc-shaped ring shape. The outer ring of the wire-drawing roller B202 is fixedly installed with a rubber pressure pad 301, and the rubber pressure pad 301 is arranged in an arc-shaped ring shape. The rubber pressure pad 301 is made of butadiene rubber. A damping telescopic rod B3 is fixedly installed between the inner ring of the rubber pressure pad 301 and the outer ring of the wire-drawing roller B202. There are several damping telescopic rods B3, which are arranged equidistantly around, and a spring is arranged on the outside of the damping telescopic rod B3. When the staff pushes the push handle 205 to drive the wire-drawing roller B202 to rotate through the bearing, the wire-drawing roller B202 and the wire-drawing roller B202 are driven to rotate. When the high-voltage cable is transported between the wire rollers A102, the rubber pressure pad 301 is squeezed to drive the damping telescopic rod B3 and the outer spring to contract, so that the contracted damping telescopic rod B3 and the outer spring generate a reverse thrust on the rubber pressure pad 301, and the high-voltage cable is limited on the inner side of the wire trough 103 for stable limited guiding transportation. The rubber pressure pad 301 made of butadiene rubber has the effects of wear resistance and high mechanical strength, which can generate friction between the rubber pressure pad 301 and the high-voltage cable, and it is not easy for the high-voltage cable to slip out between the wire roller B202 and the wire roller A102, thereby improving the effect of stable limited transportation and anti-loosening of the high-voltage cable.

[0031] Embodiment 2:

[0032] like Figure 2 , Figure 3 As shown, in addition to the embodiment in which the rubber pressure pad 301 is made of butadiene rubber, the utility model also has another embodiment in which the rubber pressure pad 301 is made of natural rubber. Because the natural rubber material is wear-resistant, elastic and tear-resistant, when an extrusion force is generated between the rubber pressure pad 301 and the high-voltage cable, the rubber pressure pad 301 can be prevented from being damaged by extrusion and tearing, so that the rubber pressure pad 301 can more stably perform stable limiting and conveying processing on the high-voltage cable. Compared with the first embodiment, the tear resistance effect is better.

[0033] Working principle: First, the staff needs to lay high-voltage cables at high altitudes, drive the platform crane to the construction site, and let two staff members stand on the two platforms respectively. After the two ends of the cable and the staff are lifted to the two opposite poles by the platform crane, the two support frames 101 are fixed to the outside of the two adjacent poles through the clamp 1, and the two ends of the high-voltage line are placed on the top of the wire pulling roller A102 respectively. Then, another staff member simultaneously twists the two adjusting screws 201 to rotate in the inner thread of the thread groove 105, pushing the sliding frame 2 to adjust the position. The inner side of the node slot 104 slides downward, driving the wire-pulling roller B202 to contact the high-voltage cable and limit the high-voltage cable between the wire-pulling roller A102 and the wire-pulling roller B202, squeezing the rubber pressure pad 301 to drive the damping telescopic rod B3 and the outer spring to contract, so that the contracted damping telescopic rod B3 and the outer spring produce a reverse thrust on the rubber pressure pad 301, limiting the high-voltage cable on the inner side of the wire slot 103. Then, two staff members simultaneously push the locking plate 203 to drive the damping telescopic rod A204 and the outer spring to expand, so that the limit block 206 slides out of the limit slot 207. Finally, push the push handle 205 to drive the wire-drawing roller B202 to rotate through the bearing, drive the high-voltage cable to be transported between the wire-drawing roller B202 and the wire-drawing roller A102, and make the wire-drawing roller A102 rotate through the bearing, and finally, squeeze the rubber pressure pad 301 to drive several damping telescopic rods B3 and the outer spring to contract in turn, so that the contracted damping telescopic rod B3 and the outer spring generate a reverse thrust on the rubber pressure pad 301, and the high-voltage cable is limited to the inner side of the wire groove 103 for stable limited guiding transportation. The rubber pressure pad 301 made of butadiene rubber has the advantages of wear resistance and mechanical strength. The high degree of effect can cause friction between the rubber pressure pad 301 and the high-voltage cable, and it will not easily cause the high-voltage cable to slip out from between the pulling roller B202 and the pulling roller A102. After the high-voltage cable is tightened and transported to a suitable length, the staff pushes the locking plate 203 in the reverse direction to make the damping telescopic rod A204 and the outer spring contract. The locking plate 203 drives the limit block 206 to slide into the inner side of the relative limit slot 207, and the pulling roller B202 is limited and fixed. After the high-voltage cable is limited, the staff will carry out construction processing on the extra parts at both ends of the high-voltage cable.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-voltage line aerial tensioning device, comprising a clamp (1), a support frame (101), a wire drawing roller A (102), an adjustment groove (104), a sliding frame (2) and a wire drawing roller B (202), wherein the support frame (101) is fixedly installed on the front and rear sides of the side of the clamp (1), and the wire drawing roller A (102) is rotatably arranged between the support frames (101) through bearings, and the opposite surfaces of the support frame (101) are embedded with adjustment grooves (104), and the opposite surfaces inside the adjustment grooves (104) are slidably arranged with sliding frames (2) through sliders, and the wire drawing roller B (202) is rotatably arranged between the opposite surfaces of the sliding frames (2) through bearings, characterized in that: The support frame (101) is provided with a spacing adjustment mechanism on the outside for facilitating the tensioning of cables of different specifications; the wire drawing roller B (202) is provided with a compression conveying tensioning mechanism on the outside for stably limiting the conveying of cables; and the sliding frame (2) is provided with a rotation limiting tensioning mechanism on the outside for tensioning cables of different lengths.

2. A high-voltage line aerial tensioning device as claimed in claim 1, characterized in that: The spacing adjustment mechanism is composed of a thread groove (105) and an adjustment screw (201); A thread groove (105) is embedded above the support frame (101) near the adjusting groove (104), and an adjusting screw rod (201) is rotatably arranged above the sliding frame (2) via a bearing, and the adjusting screw rod (201) is threadably engaged and rotatably arranged inside the thread groove (105).

3. A high-voltage line aerial tensioning device as claimed in claim 1, characterized in that: The rotation limiting tensioning mechanism is composed of a locking disk (203), a damping telescopic rod A (204), a push handle (205), a limiting block (206) and a limiting slot (207); A locking plate (203) is slidably arranged inside and at the rear of the wire-pulling roller B (202); a damping telescopic rod A (204) is fixedly installed between the front of the locking plate (203) and the rear of the inner wall of the wire-pulling roller B (202); and a spring is matchedly arranged on the outer side of the damping telescopic rod A (204); limiting blocks (206) are fixedly installed around the front of the locking plate (203); a limiting slot (207) is embedded at the rear of one of the sliding frames (2), and the limiting block (206) is slidably arranged on the inner side of the limiting slot (207).

4. The high-voltage line aerial tensioning device according to claim 1, characterized in that: The compression, conveying and tensioning mechanism is composed of a wire groove (103), a damping telescopic rod B (3) and a rubber pressure pad (301); The outer ring of the wire-drawing roller A (102) is embedded with a wire groove (103), the outer ring of the wire-drawing roller B (202) is fixedly installed with a rubber pressure pad (301), a damping telescopic rod B (3) is fixedly installed between the inner ring of the rubber pressure pad (301) and the outer ring of the wire-drawing roller B (202), and a spring is matched with the outer side of the damping telescopic rod B (3).

5. The high-voltage line aerial tensioning device according to claim 3, characterized in that: There are a plurality of limit slots (207) which are arranged equidistantly around each other.

6. A high-voltage line aerial tensioning device as claimed in claim 4, characterized in that: The wire groove (103) is arranged in an arc-shaped ring shape, the rubber pressure pad (301) is arranged in an arc-shaped ring shape, the rubber pressure pad (301) is made of butadiene rubber, and there are a plurality of damping telescopic rods B (3), which are arranged in an equidistant and surrounding manner.

Images