Winching machine for power line construction

Abstract

The utility model discloses a winching machine for electric power circuit construction. The problem of limiting a winding reel is effectively solved. Comprising a support, a winding reel is rotationally arranged at the top of the support, a limiting mechanism is arranged on the side edge of the support and comprises a shell movably arranged on the side edge of the support, and two limiting plates facing the winding reel extend out of the shell and are symmetrical about the horizontal plane where the center of the winding reel is located; only one of the two limiting plates makes contact with the side wall of the winding reel to form friction limiting, and the directions of friction limiting formed by the two limiting plates and the winding reel are opposite. The cable traction device is simple and ingenious in structure and convenient to use, the push rod is provided with the limiting mechanism, rotation of the winding reel is limited, the winding reel can be prevented from rapidly returning when a cable is pulled, the traction effect on the cable is guaranteed, and therefore smooth construction is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cable construction, in particular to a capstan for power line construction. Background Art

[0002] The capstan is a traction tool used to adjust and stretch the cable. By rotating the winding drum, the cable is pulled to meet the requirements of power line construction.

[0003] The capstan in the prior art has the following defects: when the manual or motorized capstan is in operation, the limiting effect on the winding drum is limited, which can easily cause the winding drum to reverse, thereby causing the cable to return quickly, which may cause damage and affect normal construction. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a capstan for power line construction, which effectively solves the problem of limiting the winding drum.

[0005] The technical solution to solve the technical problem is a capstan for power line construction, comprising a bracket, a winding drum is rotatably arranged on the top of the bracket, a limiting mechanism is arranged on the side of the bracket, the limiting mechanism comprises a shell movably arranged on the side of the bracket, two limiting plates extending from the shell in the direction of the winding drum, the two limiting plates are symmetrical about the horizontal plane where the center of the winding drum is located, only one of the two limiting plates contacts the side wall of the winding drum to form a friction limit, and the directions in which the two limiting plates and the winding drum form friction limits are opposite.

[0006] Preferably, a motor is provided on the bracket, and the motor drives the winding drum to rotate.

[0007] Preferably, a mounting plate is provided on the side of the bracket, and the limiting mechanism includes an adjusting rod threadedly connected to the mounting plate, and the adjusting rod is rotatably connected to the shell.

[0008] Preferably, a clearance hole is opened on the side of the bracket, and the limiting plate is retracted in the clearance hole.

[0009] Preferably, a double-headed electric push rod is provided in the shell, and U-shaped plates are connected at both ends of the double-headed electric push rod. An inclined groove is provided on the side of the U-shaped plate, and a push rod extending out of the shell is connected in the inclined groove. The bottom of the push rod is connected to a limit plate, and the inclined grooves on the two U-shaped plates are in opposite directions.

[0010] Preferably, levers located in the oblique grooves extend from both sides of the push rod.

[0011] Preferably, one end of the limit plate is rotatably connected to the bottom of the push rod, a spring is provided between the other end of the limit plate and the bottom of the push rod, the contact surface between the movable end of the limit plate and the side wall of the winding drum is a friction surface, and a pull rope is provided between the movable end of the limit plate and the push rod.

[0012] The structure of the utility model is simple and ingenious, and it is convenient to use. The push rod is provided with a limiting mechanism to limit the rotation of the wire winding cylinder, so as to avoid the rapid return of the wire winding cylinder when pulling the cable, ensure the pulling effect on the cable, and thus ensure the smooth progress of the construction. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of a winch for power line construction of the utility model.

[0014] Figure 2 is a schematic cross-sectional view of a winch for power line construction of the utility model.

[0015] Figure 3 is a schematic structural diagram of a bracket in a winch for power line construction of the utility model.

[0016] Figure 4 is a schematic structural diagram of a wire winding cylinder in a winch for power line construction of the utility model.

[0017] Figure 5 is a schematic structural diagram of a limiting mechanism in a winch for power line construction of the utility model.

[0018] Figure 6 is a schematic cross-sectional view of a limiting mechanism in a winch for power line construction of the utility model Figure 1 .

[0019] Figure 7 is a schematic cross-sectional view of a limiting mechanism in a winch for power line construction of the utility model Figure 2 . Detailed Description of the Preferred Embodiments

[0020] The following further describes in detail the specific embodiments of the utility model with reference to the accompanying drawings.

[0021] Provided by Figures 1 to 7 , a winch for power line construction includes a bracket 1. A wire winding cylinder 2 is rotatably provided at the top of the bracket 1. A limiting mechanism is provided on the side of the bracket 1. The limiting mechanism includes a housing 3 movably provided on the side of the bracket 1. Two limiting plates 4 extending towards the wire winding cylinder 2 are provided on the housing 3. The two limiting plates 4 are symmetric about the horizontal plane where the center of the wire winding cylinder 2 is located. Only one of the two limiting plates 4 contacts the side wall of the wire winding cylinder 2 to form frictional limitation, and the directions of frictional limitation of the two limiting plates 4 on the wire winding cylinder 2 are opposite.

[0022] When the utility model is specifically used,

[0023] Wind the cable around the winding drum 2, and then control the limiting mechanism so that a limiting plate 4 contacts the side wall of the winding drum 2. At this time, the cable can be wound around the winding drum 2. Start the device, and the winding drum 2 starts to traction the cable and winds the cable around the winding drum 2. When the force of the motor 5 on the winding drum 2 fails, the limiting plate 4 performs frictional limitation on the winding drum 2, and the winding drum 2 will not reverse under the reaction force of the cable, avoiding the phenomenon of the cable quickly returning to its original position and preventing safety accidents.

[0024] Similarly, when it is necessary to release the cable, adjust the limiting mechanism so that the winding drum 2 can rotate in the reverse direction to release the cable.

[0025] A motor 5 is provided on the bracket 1, and the motor 5 drives the winding drum 2 to rotate.

[0026] An installation plate 6 is provided on the side of the bracket 1. The limiting mechanism includes an adjusting rod 7 threadedly connected to the installation plate 6. The adjusting rod 7 is rotatably connected to the housing 3. The adjusting rod 7 can adjust the distance between the housing 3 and the bracket 1, that is, the distance between the limiting plate 4 and the side wall bracket 1 of the winding drum 2, and can adjust the pressure between the limiting plate 4 and the side wall of the winding drum 2, thereby adjusting the magnitude of the frictional force, and still being able to limit the winding drum 2 after the limiting plate 4 is worn.

[0027] A relief hole 8 is opened on the side of the bracket 1, and the limiting plate 4 retracts and extends in the relief hole 8.

[0028] A double-headed electric push rod 129 is provided inside the housing 3. Both ends of the double-headed electric push rod 129 are connected to a U-shaped plate 10. An inclined groove 11 is provided on the side of the U-shaped plate 10. A push rod 12 extending outside the housing 3 is connected in the inclined groove 11. The bottom of the push rod 12 is connected to the limiting plate 4. The directions of the inclined grooves 11 on the two U-shaped plates 10 are opposite. Dial rods 13 located in the inclined grooves 11 extend out on both sides of the push rod 12. One end of the limiting plate 4 is rotatably connected to the bottom of the push rod 12. A spring 14 is provided between the other end of the limiting plate 4 and the bottom of the push rod 12. The contact surface between the movable end of the limiting plate 4 and the side wall of the winding drum 2 is a friction surface. A pull rope 15 is provided between the movable end of the limiting plate 4 and the push rod 12.

[0029] The specific operation steps of the limiting plate 4 are as follows: The double-headed electric push rod 129 pushes to one side, so that the two U-shaped plates 10 move synchronously to one side. Through the action of the inclined groove 11, one of the two push rods 12 retracts inward and the other extends outward, so that one of the two limiting plates 4 contacts the side wall of the winding drum 2 and the other is away from the side wall of the winding drum 2, producing a limiting effect on the one-way rotation of the winding drum 2.

[0030] The specific principle of the limit plate 4 for limiting the side wall of the winding cylinder 2 is as follows: The spring 14 pushes the limit plate 4 close to the side wall of the winding cylinder 2. When the winding cylinder 2 rotates and the movable end of the limit plate 4 moves in the direction of compressing the spring 14, the spring 14 can be compressed, and the limit plate 4 can leave the side wall of the winding cylinder 2, so that the winding cylinder 2 can rotate normally. When the winding cylinder 2 rotates in the opposite direction, a frictional limit is formed between the limit plate 4 and the side wall of the winding cylinder 2, and it cannot rotate, realizing the one-way limit of the winding cylinder 2.

[0031] When limiting, the function of the pull rope 15 is to limit the extreme position of the limit plate 4, so that when the limit plate 4 is far away from the side wall of the winding cylinder 2, it can be non-contact with the side wall of the winding cylinder 2, avoiding the two limit plates 4 from simultaneously limiting the winding cylinder 2.

[0032] Compared with the prior art, the utility model has the following beneficial effects: The limiting mechanism can limit the winding cylinder, so that the winding cylinder remains stable without the action of traction force, avoiding the reverse rotation phenomenon, protecting the cable, preventing the cable from quickly returning to its position, thereby ensuring the smooth progress of the construction and avoiding safety accidents.

Claims

1. A capstan grinder for power line construction, characterized in that: The invention comprises a bracket (1), a winding drum (2) is rotatably arranged on the top of the bracket (1), a limiting mechanism is arranged on the side of the bracket (1), and the limiting mechanism comprises a shell (3) movably arranged on the side of the bracket (1), two limiting plates (4) extending from the shell (3) in the direction of the winding drum (2), the two limiting plates (4) are symmetrical about the horizontal plane where the center of the winding drum (2) is located, only one of the two limiting plates (4) contacts the side wall of the winding drum (2) to form friction limiting, and the directions in which the two limiting plates (4) form friction limiting with the winding drum (2) are opposite.

2. A capstan grinder for power line construction according to claim 1, characterized in that: The bracket (1) is provided with a motor (5), and the motor (5) drives the winding drum (2) to rotate.

3. A capstan grinder for power line construction according to claim 1, characterized in that: A mounting plate (6) is provided on the side of the bracket (1), and the limiting mechanism comprises an adjusting rod (7) threadedly connected to the mounting plate (6), and the adjusting rod (7) is rotatably connected to the housing (3).

4. A capstan grinder for power line construction according to claim 1, characterized in that: The bracket (1) is provided with a clearance hole (8) on the side, and the limiting plate (4) is retracted in the clearance hole (8).

5. A capstan grinder for power line construction according to claim 1, characterized in that: The housing (3) is provided with a double-headed electric push rod (129), both ends of which are connected to U-shaped plates (10), the side of the U-shaped plate (10) is provided with an inclined groove (11), the inclined groove (11) is connected to a push rod (12) extending out of the housing (3), the bottom of the push rod (12) is connected to a limit plate (4), and the inclined grooves (11) on the two U-shaped plates (10) are in opposite directions.

6. A capstan grinder for power line construction according to claim 5, characterized in that: Push rods (13) located in the inclined groove (11) extend from both sides of the push rod (12).

7. A capstan grinder for power line construction according to claim 5, characterized in that: One end of the limit plate (4) is rotatably connected to the bottom of the push rod (12), a spring (14) is provided between the other end of the limit plate (4) and the bottom of the push rod (12), a contact surface between the movable end of the limit plate (4) and the side wall of the winding drum (2) is a friction surface, and a pull rope (15) is provided between the movable end of the limit plate (4) and the push rod (12).

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