Power transmission and distribution line tractor

Abstract

The invention belongs to the technical field of power line assembly, and discloses a power transmission and distribution line tractor. Comprising a tractor body, symmetrically-distributed wheels are rotationally connected to the tractor body in a penetrating mode, driven gears are fixedly connected to the wheels, transmission gears are connected to the driven gears in an engaged mode, a driving motor is installed on the tractor body, and an output shaft of the driving motor is fixedly connected with the transmission gears; the upper side of the traction vehicle body is rotationally connected with rotary supporting cranks which are symmetrically distributed; through cooperation of structures such as the rotating supporting crank and the cable traction rod, under driving of the rotating motor, the limiting sliding column is matched to drive the rotating supporting crank to rotate adaptively, and the rotating supporting crank is fixed by the limiting clamping block on the upper side, so that the cable traction rod is kept in a horizontal state in the process of dragging the vehicle body to move; the situation that in the advancing process of the device, due to the fact that dragging force caused by the dead weight of the cable is unbalanced stress of the whole device, overturning may occur is avoided, and meanwhile the device is driven by a rotating motor.

Description

Technical Field

[0001] The present invention belongs to the technical field of power line assembly, and specifically relates to a traction vehicle for transmission and distribution lines. Background Art

[0002] Each year, the wires in various regions may break due to factors such as line aging, weather conditions, or human factors, etc. in the distribution lines and transmission lines. The more troublesome tasks during the repair of broken wires are wire laying and wire tightening, which require a large amount of manpower and material resources, resulting in slow progress of the repair work and extended power restoration time, etc. Most of the existing technologies use manual traction or use pulley blocks to conduct line traction between utility poles. Workers transport the cable to the utility pole, or install pulley blocks on the utility pole first, then transport the cable to the utility pole via the pulley blocks, and then manually straighten the cables between each utility pole. The above methods are labor-consuming and have low efficiency. Summary of the Invention

[0003] To solve the problems of labor consumption and low efficiency in the process of repairing electric lines mentioned in the above background art, the present invention provides a traction vehicle for transmission and distribution lines.

[0004] To achieve the above object, the present invention provides the following technical solution: A traction vehicle for transmission and distribution lines, including a traction vehicle body, symmetrically distributed wheels are rotatably connected through the traction vehicle body, driven gears are fixedly connected to the wheels, the driven gears are meshed with transmission gears, a driving motor is installed on the traction vehicle body, and the output shaft of the driving motor is fixedly connected to the transmission gear. Symmetrically distributed rotating support cranks are rotatably connected to the upper side of the traction vehicle body. Wherein, the other end of the rotating support crank is rotatably connected to a limit sliding column. A cable traction rod is rotatably connected to the traction vehicle body. A sliding track is provided on the cable traction rod, and the sliding track of the cable traction rod is slidably connected to the symmetrically distributed limit sliding columns. Symmetrically distributed limit clamping blocks are slidably connected through the traction vehicle body, and a first return spring is arranged between the limit clamping blocks and the traction vehicle body.

[0005] Preferably, a connecting sliding plate is fixedly connected to the cable traction rod. A lower clamping block is slidably connected through the connecting sliding plate, and a third return spring is arranged between the lower clamping block and the connecting sliding plate. An upper clamping block is slidably connected through the lower clamping block, and a fourth return spring is arranged between the upper clamping block and the lower clamping block.

[0006] Preferably, a rotating shaft is rotatably connected through the traction vehicle body. A rotating motor is installed on the traction vehicle body. The output end of the rotating motor is fixedly connected to a rotating belt. The rotating belt is fixedly connected to the rotating shaft, and the rotating shaft is fixedly connected to the cable traction rod.

[0007] Preferably, the radian of the arc surface of the lower clamping block and the upper clamping block is consistent with the radian of the cable.

[0008] Preferably, the length of the upper clamping block is longer than that of the lower clamping block.

[0009] Preferably, a stretching drive shaft is rotatably connected through the upper side of the cable traction rod. One end of the stretching drive shaft close to the rotating belt is fixedly connected with a rotating transmission ring. One end of the stretching drive shaft close to the rotating transmission ring is rotatably connected with a transmission shaft, and the transmission shaft is fixedly connected with the rotating belt.

[0010] Preferably, a circumferentially arrayed sliding transmission block is slidably connected through one end of the transmission shaft close to the rotating transmission ring. A through groove with the same width as the sliding transmission block is formed in the upper half inner contour of the rotating transmission ring.

[0011] Preferably, the lowest point of the arc surface of the lower clamping block is higher than the highest point of the connecting shaft of the stretching drive shaft.

[0012] Preferably, a circumferentially arrayed sliding extrusion ring is slidably connected in the stretching drive shaft, and a second return spring is arranged between the sliding extrusion ring and the stretching drive shaft.

[0013] Preferably, a sliding control block is slidably connected through the lower clamping block. A fifth return spring is arranged between the sliding control block and the lower clamping block, and the sliding control block is in extrusion fit with the sliding extrusion ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of structures such as the rotating support crank and the cable traction rod, the present invention, driven by the rotating motor, adaptively rotates the rotating support crank with the cooperation of the limit sliding column and is fixed by the upper limit clamping block, so that the cable traction rod maintains a horizontal state during the process of pulling the vehicle body, avoiding the pulling force caused by the self-weight of the cable during the movement of the device, which may cause the entire device to be unbalanced and may tip over. At the same time, driven by the rotating motor, when the device moves to under the electric pole, the cable traction rod is maintained in a vertical state, and with the cooperation of the limit sliding column, the rotating support crank is driven to move to the lower limit clamping block to clamp and fix the limit sliding column, so that the rotating support crank and the cable traction rod form a triangular structure and remain stable during the process of the staff paying out the cable; Through the cooperation of structures such as the upper clamping block and the lower clamping block, the present invention fixes the cable during the traction process. And because the lower clamping block is higher than the stretching drive shaft, during the movement of the device, the stretching drive shaft is always unable to contact the cable. During the process of installing the cable on the electric pole, it is avoided that the stretching drive shaft may rotate during the process of the rotating motor driving the cable traction rod to rotate, resulting in the cable sliding and affecting the work process; Through the cooperation of structures such as a rotating motor and a transmission shaft, by controlling the rotation speed of the rotating motor, the centrifugal force received by the sliding transmission block is further controlled, thereby controlling the rotation of the rotating transmission ring, further controlling the sliding of the sliding extrusion ring, and further squeezing the sliding control block through the sliding extrusion ring to control the position of the lower clamping block, thereby controlling the contact between the cable and the stretching drive shaft. Finally, under the action of the stretching drive shaft, the cable is straightened between each pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic connection diagram of the rotating support crank and the cable traction rod of the present invention; Figure 3 For the present invention Figure 2 The enlarged view at position A in; Figure 4 is a partial schematic diagram of the cable clamping structure of the present invention; Figure 5 is an exploded view of the cable clamping structure of the present invention; Figure 6 is an exploded view of the rotating connection structure of the present invention; Figure 7 is a half-sectional exploded view of the transmission shaft and the rotating transmission ring of the present invention; Figure 8 is a half-sectional schematic connection diagram of the stretching drive shaft and the sliding extrusion ring of the present invention.

[0016] In the figure: 100, traction vehicle body; 101, wheels; 200, drive motor; 201, transmission gear; 202, driven gear; 300, rotating support crank; 301, cable traction rod; 302, limit sliding column; 303, limit clamping block; 304, first return spring; 400, rotating motor; 401, rotating belt; 402, rotating shaft; 500, stretching drive shaft; 501, transmission shaft; 502, rotating transmission ring; 503, sliding transmission block; 504, sliding extrusion ring; 505, second return spring; 600, connecting sliding plate; 601, third return spring; 602, lower clamping block; 603, upper clamping block; 604, fourth return spring; 605, sliding control block; 606, fifth return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] As Figures 1 to 8 shown, the present invention provides a traction vehicle for transmission and distribution lines, including a traction vehicle body 100. Symmetrically distributed wheels 101 are rotatably connected through the traction vehicle body 100. A driven gear 202 is fixedly connected to the wheels 101. The driven gear 202 is meshed with a transmission gear 201. A drive motor 200 is installed on the traction vehicle body 100. The output shaft of the drive motor 200 is fixedly connected to the transmission gear 201. Symmetrically distributed rotating support cranks 300 are rotatably connected to the upper side of the traction vehicle body 100; Wherein, the other end of the rotating support crank 300 is rotatably connected to a limit sliding column 302. A cable traction rod 301 is rotatably connected to the traction vehicle body 100. A slideway is formed on the cable traction rod 301. The slideway of the cable traction rod 301 is slidably connected to the symmetrically distributed limit sliding columns 302. Symmetrically distributed limit clamping blocks 303 are slidably connected through the traction vehicle body 100. A first return spring 304 is arranged between the limit clamping blocks 303 and the traction vehicle body 100.

[0019] A connection sliding plate 600 is fixedly connected to the cable traction rod 301. A lower clamping block 602 is slidably connected through the connection sliding plate 600. A third return spring 601 is arranged between the lower clamping block 602 and the connection sliding plate 600. An upper clamping block 603 is slidably connected through the lower clamping block 602. A fourth return spring 604 is arranged between the upper clamping block 603 and the lower clamping block 602.

[0020] A rotating shaft 402 is rotatably connected through the traction vehicle body 100. A rotating motor 400 is installed on the traction vehicle body 100. The output end of the rotating motor 400 is fixedly connected to a rotating belt 401. A rotating shaft 402 is fixedly connected to the rotating belt 401. The rotating shaft 402 is fixedly connected to the cable traction rod 301.

[0021] Adopting the above scheme: In the case of emergency repair or maintenance of the transmission and distribution line, it is necessary to transport the cable from the cable reel to each required electric pole. First, start the rotating motor 400. The rotation of the rotating shaft 402 drives the cable traction rod 301 to rotate counterclockwise to the horizontal state. Then, through the sliding of the limit sliding column 302, the rotating support crank 300 is driven to rotate counterclockwise synchronously until the limit sliding column 302 contacts the limit clamping block 303 on the upper side of the cable traction rod 301. Subsequently, the cable traction rod 301 is limited and fixed by the limit clamping block 303. Then, the staff fixes the cable between the lower clamping block 602 and the upper clamping block 603 first, and the cable is fixed by the elastic force of the fourth return spring 604. Thus, the preliminary preparation work is completed.

[0022] After starting the drive motor 200, the rotation of the drive gear 201 meshed with the driven gear 202 drives the wheel 101 to rotate, thereby driving the towing vehicle body 100 to move forward. When the towing vehicle body 100 moves to the utility pole, the drive motor 200 is stopped, and the rotation motor 400 is started to rotate in the reverse direction again. Then, the cable towing rod 301 is driven by the rotating belt 401 to rotate clockwise to the vertical state. Furthermore, the rotation support crank 300 is driven to rotate synchronously by the sliding of the limit sliding column 302 until the limit sliding column 302 is limited and fixed by the lower limit clamping block 303 under the elastic force of the first return spring 304. Then, the staff on the utility pole installs the cable on the utility pole. Subsequently, the rotation motor 400 rotates in the reverse direction again to restore the cable towing rod 301 to the horizontal state. Then, the drive motor 200 drives the towing vehicle body 100 to the next utility pole until part of the operation of cable laying is completed. By rotating the cable towing rod 301 to the horizontal state during the movement of the towing vehicle body 100, to prevent the pulling force caused by the weight of the cable from making the towing vehicle body 100 tip over during the movement, and at the same time prevent the cable towing rod 301 in the vertical state from being blocked by other cables during the movement of the towing vehicle body 100.

[0023] As Figures 4 to 8 shown, the radian of the arc surface of the lower clamping block 602 and the upper clamping block 603 is consistent with the radian of the cable.

[0024] The length of the upper clamping block 603 is longer than that of the lower clamping block 602.

[0025] A stretching drive shaft 500 is rotatably connected through the upper side of the cable towing rod 301. One end of the stretching drive shaft 500 close to the rotating belt 401 is fixedly connected with a rotating transmission ring 502. One end of the stretching drive shaft 500 close to the rotating transmission ring 502 is rotatably connected with a transmission shaft 501, and the transmission shaft 501 is fixedly connected with the rotating belt 401.

[0026] One end of the transmission shaft 501 close to the rotating transmission ring 502 is slidably connected through a circumferentially arrayed sliding transmission block 503. The upper half inner contour of the rotating transmission ring 502 is provided with a through groove having the same width as the sliding transmission block 503.

[0027] The lowest point of the arc surface of the lower clamping block 602 is higher than the highest point of the connecting shaft of the stretching drive shaft 500.

[0028] A circumferentially arrayed sliding extrusion ring 504 is slidably connected in the stretching drive shaft 500. A second return spring 505 is arranged between the sliding extrusion ring 504 and the stretching drive shaft 500.

[0029] A sliding control block 605 is slidably connected through the lower clamping block 602. A fifth return spring 606 is arranged between the sliding control block 605 and the lower clamping block 602. The sliding control block 605 is in extrusion fit with the sliding extrusion ring 504.

[0030] Adopting the above solution: During the cable laying process, the rotating motor 400 controls the rotation of the cable traction rod 301 through the rotating shaft 402, and at the same time drives the transmission shaft 501 to rotate synchronously through the rotating belt 401. During this process, the rotation speed of the rotating motor 400 is relatively slow, which is not enough to completely open the sliding transmission block 503 on the transmission shaft 501. At the same time, through the semi-circular through groove opened on the rotating transmission ring 502, it is avoided that when the cable traction rod 301 is in the vertical state, the sliding transmission block 503 causes the transmission shaft 501 to drive the rotating transmission ring 502 to rotate under the action of gravity, thereby driving the stretching drive shaft 500 to rotate. At the same time, since the lowest point of the arc surface of the lower clamping block 602 is higher than the highest point of the connecting shaft of the stretching drive shaft 500, even if the stretching drive shaft 500 accidentally rotates during the cable laying process, it is impossible to make the cable clamped and fixed by the lower clamping block 602 and the upper clamping block 603 slide, thus preparing for subsequent operations.

[0031] After the initial traction work of cable laying is completed, it is necessary to straighten the cables on each pole to avoid abrasion caused by the shaking of the cables due to environmental factors during use. That is, start the rotating motor 400 again to rotate at a high speed, and then drive the transmission shaft 501 to rotate synchronously through the rotating belt 401. Then, under the action of centrifugal force, the sliding transmission block 503 slides outwards, and then is clamped with the through groove on the rotating transmission ring 502, thereby driving the rotating transmission ring 502 to rotate synchronously, and then driving the stretching drive shaft 500 to rotate synchronously. Under the action of centrifugal force, the sliding extrusion ring 504 in the stretching drive shaft 500 slides outwards, and then presses the sliding control block 605 to slide downwards. Then, the lower clamping block 602 slides downwards under the elastic force of the fifth return spring 606, driving the upper clamping block 603 to slide downwards synchronously. Thus, the cable contacts the stretching drive shaft 500, and the cable is gradually straightened by the rotation of the stretching drive shaft 500. When the cable is straightened, stop the rotating motor 400, and then the staff can perform subsequent work on the cable.

[0032] The working principle and usage process of the present invention: In the case of emergency repair or maintenance of power transmission and distribution lines, it is necessary to transport the cable from the cable reel to each required utility pole. First, start the rotating motor 400. The rotation of the rotating shaft 402 drives the cable traction rod 301 to rotate counterclockwise to the horizontal state. Then, through the sliding of the limit sliding column 302, the rotating support crank 300 is driven to rotate counterclockwise synchronously until the limit sliding column 302 contacts the limit clamping block 303 on the upper side of the cable traction rod 301. Subsequently, the cable traction rod 301 is limited and fixed by the limit clamping block 303. Then, the staff fixes the cable between the lower clamping block 602 and the upper clamping block 603 first, and the cable is fixed by the elastic force of the fourth return spring 604. Thus, the preliminary preparation work is completed.

[0033] After that, start the drive motor 200. The rotation of the drive gear 201 drives the wheel 101 to rotate through the engagement with the driven gear 202, and then drives the traction vehicle body 100 to move forward. When the traction vehicle body 100 moves to the utility pole, stop the drive motor 200, and start the rotating motor 400 to rotate in the reverse direction again. Then, the cable traction rod 301 is driven to rotate clockwise to the vertical state through the rotating belt 401. Then, through the sliding of the limit sliding column 302, the rotating support crank 300 is driven to rotate synchronously until the limit sliding column 302 is limited and fixed by the lower limit clamping block 303 under the elastic force of the first return spring 304. Then, the staff on the utility pole installs the cable on the utility pole. Subsequently, the rotating motor 400 rotates in the reverse direction again to make the cable traction rod 301 return to the horizontal state. Then, the drive motor 200 drives the traction vehicle body 100 to the next utility pole until part of the operation of paying out the cable is completed. By rotating the cable traction rod 301 to the horizontal state during the movement of the traction vehicle body 100, it is to prevent the pulling force caused by the weight of the cable from making the traction vehicle body 100 tip over during the movement, and at the same time prevent the cable traction rod 301 in the vertical state from being blocked by other cables during the movement of the traction vehicle body 100.

[0034] During the process of paying out the cable, the rotating motor 400 controls the rotation of the cable traction rod 301 through the rotating shaft 402, and at the same time drives the transmission shaft 501 to rotate synchronously through the rotating belt 401. During this process, the rotation speed of the rotating motor 400 is relatively slow, which is not enough to completely open the sliding transmission block 503 on the transmission shaft 501. At the same time, through the half-through slot opened on the rotating transmission ring 502, it is avoided that the cable traction rod 301 drives the rotating transmission ring 502 to rotate under the action of gravity by the sliding transmission block 503 in the vertical state, and then drives the stretching drive shaft 500 to rotate. At the same time, since the lowest point of the arc surface of the lower clamping block 602 is higher than the highest point of the connecting shaft of the stretching drive shaft 500, even if the stretching drive shaft 500 rotates accidentally during the process of paying out the cable, the cable clamped and fixed by the lower clamping block 602 and the upper clamping block 603 cannot slide, thus making preparations for subsequent operations.

[0035] After the initial traction work of wire laying is completed, it is necessary to straighten the cables on each pole to avoid abrasion caused by the shaking of the cables due to environmental factors during use. That is, start the rotating motor 400 again to rotate at high speed, and then drive the transmission shaft 501 to rotate synchronously through the rotating belt 401. Then, under the action of centrifugal force, the sliding transmission block 503 slides outwards, and then is clamped with the through groove on the rotating transmission ring 502, thereby driving the rotating transmission ring 502 to rotate synchronously, and then driving the stretching drive shaft 500 to rotate synchronously. Under the action of centrifugal force, the sliding extrusion ring 504 in the stretching drive shaft 500 slides outwards, and then presses the sliding control block 605 downwards, and then makes the lower clamping block 602 slide downwards by the elastic force of the fifth return spring 606, driving the upper clamping block 603 to slide downwards synchronously, so that the cable contacts the stretching drive shaft 500. The cable is gradually straightened by the rotation of the stretching drive shaft 500. When the cable is straightened, stop the rotating motor 400, and then the staff can perform subsequent work on the cable.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traction vehicle for power transmission and distribution lines, comprising a traction vehicle body (100), characterized in that: The traction vehicle body (100) is rotatably connected through symmetrically distributed wheels (101). A driven gear (202) is fixedly connected to the wheels (101). The driven gear (202) is meshed with a transmission gear (201). A drive motor (200) is installed on the traction vehicle body (100). The output shaft of the drive motor (200) is fixedly connected to the transmission gear (201). Symmetrically distributed rotating support cranks (300) are rotatably connected to the upper side of the traction vehicle body (100); Wherein, the other end of the rotating support crank (300) is rotatably connected to a limit sliding column (302). A cable traction rod (301) is rotatably connected to the traction vehicle body (100). A slideway is formed on the cable traction rod (301). The slideway of the cable traction rod (301) is slidably connected to symmetrically distributed limit sliding columns (302). Symmetrically distributed limit clamping blocks (303) are slidably connected through the traction vehicle body (100). A first return spring (304) is arranged between the limit clamping block (303) and the traction vehicle body (100).

2. The tractive vehicle for transmission and distribution lines according to claim 1, characterized in that: A connecting sliding plate (600) is fixedly connected to the cable traction rod (301). A lower clamping block (602) is slidably connected through the connecting sliding plate (600). A third return spring (601) is arranged between the lower clamping block (602) and the connecting sliding plate (600). An upper clamping block (603) is slidably connected through the lower clamping block (602). A fourth return spring (604) is arranged between the upper clamping block (603) and the lower clamping block (602).

3. The tractive vehicle for power transmission and distribution lines according to claim 1, characterized in that: A rotating shaft (402) is rotatably connected through the traction vehicle body (100). A rotating motor (400) is installed on the traction vehicle body (100). The output end of the rotating motor (400) is fixedly connected to a rotating belt (401). A rotating shaft (402) is fixedly connected to the rotating belt (401). The rotating shaft (402) is fixedly connected to the cable traction rod (301).

4. The tractor for transmission and distribution lines according to claim 2, characterized in that: The radian of the arc surfaces of the lower clamping block (602) and the upper clamping block (603) is consistent with the radian of the cable.

5. The tractive vehicle for power transmission and distribution lines according to claim 2, wherein: The length of the upper clamping block (603) is longer than that of the lower clamping block (602).

6. The tractor for transmission and distribution lines according to claim 2, characterized in that: A stretching drive shaft (500) is rotatably connected through the upper side of the cable traction rod (301). A rotating transmission ring (502) is fixedly connected to one end of the stretching drive shaft (500) close to the rotating belt (401). A transmission shaft (501) is rotatably connected to one end of the stretching drive shaft (500) close to the rotating transmission ring (502). The transmission shaft (501) is fixedly connected to the rotating belt (401).

7. The tractor for transmission and distribution lines according to claim 6, characterized in that: A circumferentially arrayed sliding transmission block (503) is slidably connected through one end of the transmission shaft (501) close to the rotating transmission ring (502). A through groove with the same width as the sliding transmission block (503) is formed on the upper half inner contour of the rotating transmission ring (502).

8. The tractive vehicle for power transmission and distribution lines according to claim 7, characterized in that: The lowest point of the arc surface of the lower clamping block (602) is higher than the highest point of the connecting shaft of the stretching drive shaft (500).

9. The tractor for transmission and distribution lines according to claim 6, characterized in that: A sliding extrusion ring (504) distributed in a circumferential array is slidably connected inside the stretching drive shaft (500), and a second return spring (505) is arranged between the sliding extrusion ring (504) and the stretching drive shaft (500).

10. The tractive vehicle for power transmission and distribution lines according to claim 9, wherein: A sliding control block (605) is slidably connected through the lower clamping block (602), a fifth return spring (606) is arranged between the sliding control block (605) and the lower clamping block (602), and the sliding control block (605) is in extrusion fit with the sliding extrusion ring (504).

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