CN218917032U - Clamping device for cable tension machine - Google Patents

Abstract

The utility model discloses a clamping device for a cable pulling machine, which belongs to the technical field of cable fixing, wherein a cable is sleeved inside the clamping device by arranging a sleeve, a conical column is driven to move downwards on the sleeve in the process of rotating by a forward rotating nut, six balls can be extruded and driven to roll in the process of moving downwards by the conical column, the conical column can drive six connecting rods to extend outwards through the six balls and six baffle blocks due to the gradual reduction of the diameter of the conical column from top to bottom, the tops of the six connecting rods are far away from each other by matching with the supporting effect of pins in the middle of the connecting rods, the bottoms of the six connecting rods are close to each other, a plurality of clamping plates are driven to approach the cable by the connecting rods, the clamping operation of the cable can be completed after the clamping plates are contacted with the cable, the cable is abandoned by adopting a pincerlike clamp body, the condition that the cable is rotated due to torsion is not easy to happen under the condition that the cable is stressed, errors are reduced, and the accuracy of the tension test is improved.

Description

Clamping device for cable tension machine

Technical Field

The utility model belongs to the technical field of cable fixing, and particularly relates to a clamping device for a cable tension machine.

Background

The main characteristic of the power cable is that it is to squeeze (wrap) insulating layer outside the conductor, twist several cores (corresponding to phase, zero and ground wires of the power system), and add a sheath layer, such as plastic or rubber covered wire and cable, and the main technological techniques are drawing, twisting, insulating extrusion (wrapping), cabling, armouring, sheath extrusion, etc.

At present, a cable tension machine is generally adopted for carrying out experiments in a cable tension test, a clamping mechanism is required to clamp the cable in the cable test process, a clamp-shaped clamp body is generally adopted for clamping the cable at present, and the cable is easy to rotate under the condition of being subjected to tension, so that errors are very easy to occur in the test process, and the accuracy of the tension test is affected.

Disclosure of Invention

In order to overcome the defects, the utility model provides the clamping device for the cable tension machine, which solves the problems that the clamp body is adopted to clamp the cable, and the cable is easy to be subjected to torsion under the condition of tension so as to rotate, so that errors are easy to occur in the testing process, and the accuracy of tension testing is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a clamping device for cable pulling machine, includes the sleeve, six recesses have been seted up to sleeve outer bottom, be equipped with deflection unit in the recess, deflection unit's top is fixed with sliding unit, six sliding unit's one end that is close to each other overlap joint outside with same adjusting part, adjusting part sets up outside the sleeve, deflection unit's bottom articulates through the round pin axle has the grip block, the sleeve external screw thread groove that is equipped with, adjusting part threaded connection is in the screw thread groove.

As a further aspect of the utility model: a plurality of transverse anti-skid patterns are arranged in the clamping plate, and the mounting frame is clamped above the outer side of the sleeve.

As a further aspect of the utility model: the deflection assembly comprises a connecting rod, the middle part of the connecting rod is arranged in the groove through a pin, two torsion springs are arranged outside the pin, and two ends of each torsion spring are respectively fixed on the pin shaft and the connecting rod.

As a further aspect of the utility model: the sliding assembly comprises a stop block, the bottom of the stop block is fixedly connected with the top end of the connecting rod, a ball is arranged on one side, close to the adjusting assembly, of the stop block, and the ball is in lap joint with the adjusting assembly.

As a further aspect of the utility model: the adjusting component comprises a limit cover, a conical column is fixed at the bottom of the limit cover, the limit cover and the conical column are connected with one nut in a clamping mode, and the nut is connected in a thread groove in a threaded mode.

As a further aspect of the utility model: the diameter of the conical column is gradually reduced from top to bottom, the outer part of the conical column is overlapped with six balls, and a plurality of longitudinal anti-slip strips are arranged outside the nut.

Compared with the prior art, the utility model has the beneficial effects that:

1. this cable is clamping device for pulling machine, cup joint the cable inside through setting up the sleeve, forward screw nut, make the nut drive the rotatory in-process of toper post and move down on the sleeve, the in-process that toper post moved down can extrude six balls, and drive the ball and roll, because the toper post reduces from last to lower diameter step by step, therefore the toper post can drive six connecting rods and outwards extend through six balls and six dog, the supporting role of cooperation connecting rod middle part pin, make the top of six connecting rods keep away from each other, the bottom of six connecting rods is close to each other, make a plurality of connecting rods drive a plurality of grip blocks to be close to the cable, can accomplish the centre gripping work to the cable after grip block and cable contact, abandon traditional adoption pincerlike clamp body and carry out the centre gripping to the cable, make the cable be difficult for receiving torsion under the pulling force and appear the pivoted condition, reduce the error, improve the accuracy of pulling force test.

2. This clamping device for cable pulling machine through setting up the grip block behind the cable centre gripping, horizontal anti-skidding line on the grip block can play good anti-skidding effect, be difficult for the slippage after the cable receives longitudinal tension, improve clamping stability, then reverse nut when dismantling the cable, make the nut drive toper post and upwards move, through the pulling force effect of torsional spring on the connecting rod, make the top of six connecting rods be close to each other, and the bottom of six connecting rods is kept away from each other, therefore six grip blocks can break away from the cable, can accomplish the dismantlement work to the cable, be convenient for dismantle the change to the cable, bring very big facility for test work.

3. This clamping device for cable pulling machine, through the setting of ball, the in-process that makes the toper post reciprocate, the ball can 360 degrees free rotations, therefore can reduce the frictional force between ball and the toper post, improve the stability that connecting rod and grip block deflected, be favorable to the centre gripping work to the cable, and the grip block articulates with the connecting rod bottom through the round pin axle, make the connecting rod in the in-process of deflecting, the grip block can remain the vertical state throughout, make it can fully laminate outward with the cable, and then improve the centre gripping stability.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the connection of the sleeve to the adjustment assembly of the present utility model;

FIG. 3 is a schematic view of the connection of the deflection assembly and the sliding assembly of the present utility model;

FIG. 4 is a schematic view of the structure of the adjusting assembly of the present utility model;

in the figure: 1. a sleeve; 2. a groove; 3. a deflection assembly; 301. a connecting rod; 302. a pin; 303. a torsion spring; 4. a sliding assembly; 401. a stop block; 402. a ball; 5. a clamping plate; 6. an adjustment assembly; 601. a limit cover; 602. a tapered column; 603. a nut; 604. a longitudinal cleat; 7. a thread groove; 8. and (5) mounting a frame.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

As shown in fig. 1-4, the present utility model provides a technical solution: the clamping device for the cable tension machine comprises a sleeve 1, six grooves 2 are formed in the outer bottom of the sleeve 1, a deflection assembly 3 is arranged in each groove 2, each deflection assembly 3 comprises a connecting rod 301, the middle of each connecting rod 301 is arranged in each groove 2 through a pin 302, two torsion springs 303 are arranged outside each pin 302, two ends of each torsion spring 303 are respectively fixed on a pin shaft and each connecting rod 301, the tops of the six connecting rods 301 are mutually close in the process of driving a conical column 602 to move upwards through the corresponding nut 603, and the bottoms of the six connecting rods 301 are mutually far away, so that the six clamping plates 5 can be separated from a cable, the dismounting work of the cable can be completed, and the dismounting and the replacement of the cable are facilitated;

the top end of the deflection assembly 3 is fixedly provided with a sliding assembly 4, one ends, close to each other, of the six sliding assemblies 4 are overlapped with the outside of the same adjusting assembly 6, the sliding assembly 4 comprises a stop block 401, the bottom of the stop block 401 is fixedly connected with the top end of the connecting rod 301, one side, close to the adjusting assembly 6, of the stop block 401 is provided with a ball 402, the ball 402 is overlapped with the adjusting assembly 6, and the ball 402 can freely rotate by 360 degrees in the process of moving the conical column 602 up and down due to the ball 402, so that the friction force between the ball 402 and the conical column 602 can be reduced, the deflection stability of the connecting rod 301 and the clamping plate 5 is improved, and the clamping work of a cable is facilitated;

the adjusting component 6 is arranged outside the sleeve 1, the bottom end of the deflection component 3 is hinged with the clamping plates 5 through a pin shaft, the adjusting component 6 comprises a limiting cover 601, a conical column 602 is fixed at the bottom of the limiting cover 601, the same nut 603 is clamped in the limiting cover 601 and the conical column 602, the nut 603 is in threaded connection in the threaded groove 7, and the conical column 602 is arranged, so that the angles of the six connecting rods 301 can be synchronously adjusted by adjusting the positions of the conical column 602, the six clamping plates 5 can be synchronously separated from or mutually close to each other, and the stability of disassembly and assembly of the cable is improved;

the diameter of the conical column 602 is gradually reduced from top to bottom, the outer part of the conical column 602 is overlapped with the six balls 402, and a plurality of longitudinal anti-slip strips 604 are arranged outside the nut 603, so that the nut 603 is provided with the longitudinal anti-slip strips 604, and the nut 603 can play a good role in anti-slip, thereby being beneficial to the height adjustment work of the conical column 602;

the sleeve 1 is provided with the thread groove 7, the adjusting component 6 is in the thread groove 7 in a threaded manner, a plurality of transverse anti-slip threads are arranged in the clamping plate 5, the mounting frame 8 is clamped above the sleeve 1, and the transverse anti-slip threads on the clamping plate 5 can play a good anti-slip role due to the transverse anti-slip threads, so that the cable is not easy to slip after being subjected to longitudinal tension, and the clamping stability is improved.

The working principle of the utility model is as follows:

when the cable is used, the cable is sleeved into the sleeve 1, the nut 603 is rotated forward, the nut 603 drives the tapered column 602 to move downwards on the sleeve 1 in the process of rotating, six balls 402 can be extruded in the process of moving downwards the tapered column 602, and the balls 402 are driven to roll, and the diameter of the tapered column 602 is gradually reduced from top to bottom;

the conical column 602 can drive the six connecting rods 301 to extend outwards through the six balls 402 and the six stoppers 401, and the tops of the six connecting rods 301 are far away from each other under the supporting action of the pins 302 in the middle of the connecting rods 301, the bottoms of the six connecting rods 301 are close to each other, the plurality of connecting rods 301 drive the plurality of clamping plates 5 to approach the cables, and the clamping work of the cables can be completed after the clamping plates 5 are contacted with the cables;

after the clamping plate 5 clamps the cable, the transverse anti-skid patterns on the clamping plate 5 can play a role in skid resistance, and the clamping plate 5 is hinged with the bottom of the connecting rod 301 through a pin shaft, so that the clamping plate 5 can always keep a vertical state in the deflection process of the connecting rod 301, and can be fully attached to the outside of the cable;

when the cable is disassembled, the nut 603 is reversed, so that the nut 603 drives the conical column 602 to move upwards, the tops of the six connecting rods 301 are close to each other under the tensile force of the torsion spring 303 on the connecting rod 301, and the bottoms of the six connecting rods 301 are away from each other, and therefore the six clamping plates 5 can be separated from the cable, and the disassembling of the cable can be completed.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of one of ordinary skill in the art.

Claims (6)

1. The utility model provides a clamping device for cable pulling machine, includes sleeve (1), its characterized in that: six grooves (2) are formed in the outer bottom of the sleeve (1), deflection assemblies (3) are arranged in the grooves (2), sliding assemblies (4) are fixed to the top ends of the deflection assemblies (3), one ends, close to each other, of the six sliding assemblies (4) are overlapped with the outer portion of the same adjusting assembly (6), the adjusting assemblies (6) are arranged outside the sleeve (1), clamping plates (5) are hinged to the bottom end of the deflection assemblies (3) through pin shafts, threaded grooves (7) are formed in the outer portions of the sleeve (1), and the adjusting assemblies (6) are connected in the threaded grooves (7) in a threaded mode.

2. The clamping device for a cable tension machine of claim 1, wherein: a plurality of transverse anti-skid patterns are arranged in the clamping plate (5), and a mounting rack (8) is clamped above the outer side of the sleeve (1).

3. The clamping device for a cable tension machine of claim 1, wherein: the deflection assembly (3) comprises a connecting rod (301), the middle part of the connecting rod (301) is arranged in the groove (2) through a pin (302), two torsion springs (303) are arranged outside the pin (302), and two ends of each torsion spring (303) are respectively fixed on the pin shaft and the connecting rod (301).

4. A clamping device for a cable tension machine as recited in claim 3, wherein: the sliding assembly (4) comprises a stop block (401), the bottom of the stop block (401) is fixedly connected with the top end of the connecting rod (301), a ball (402) is arranged on one side, close to the adjusting assembly (6), of the stop block (401), and the ball (402) is in lap joint with the adjusting assembly (6).

5. The clamping device for a cable tension machine of claim 4, wherein: the adjusting component (6) comprises a limiting cover (601), a conical column (602) is fixed at the bottom of the limiting cover (601), the same nut (603) is clamped in the limiting cover (601) and the conical column (602), and the nut (603) is in threaded connection in the threaded groove (7).

6. The clamping device for a cable tension machine of claim 5, wherein: the diameter of the conical column (602) is gradually reduced from top to bottom, six balls (402) are lapped outside the conical column (602), and a plurality of longitudinal anti-slip strips (604) are arranged outside the nut (603).

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