CN219015868U

CN219015868U - Special fixture for tension test of insulator

Info

Publication number: CN219015868U
Application number: CN202223216108.3U
Authority: CN
Inventors: 张绍辉; 陈海生; 余森明; 杨宇; 宁轾; 朱嘉泳
Original assignee: Guangdong Shuntuo Testing Technology Co ltd
Current assignee: Guangdong Shuntuo Testing Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-12
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a special fixture for testing tension of an insulator, which relates to the technical field of insulator testing, and aims to solve the problems that when the insulator is fixed, the insulator cannot be clamped by the existing fixture of a tension tester, and the arc surface of the insulator is sunken due to overlarge extrusion force between the fixture and the insulator, so that damage is caused. The utility model has better clamping effect on the insulator, can play a certain role in protecting the insulator, and effectively prevents the insulator from being extruded to damage.

Description

Special fixture for tension test of insulator

Technical Field

The utility model relates to the technical field of insulator testing, in particular to a special fixture for testing tension of an insulator.

Background

The insulator is a device arranged between conductors with different electric potentials or between the conductors and a ground potential component, can withstand the action of voltage and mechanical stress, and is required to be subjected to various data index tests after being produced, wherein one test is a tensile test, and a tensile tester is required to be used when the tensile test is carried out on the insulator;

the tensile testing machine that is commonly used at present is when being fixed to the article that is surveyed, generally mostly adopts two straight splint to rotate through the threaded rod and makes to form the extrusion between two splint and the article that is surveyed and accomplish fixedly, because the upper and lower extreme side of insulator is the cambered surface, when leading to adopting this kind of anchor clamps to fix the insulator, the insulator slides easily, can't press from both sides tightly, and leads to the insulator cambered surface to produce sunkenly because of the extrusion force between anchor clamps and the insulator is too big easily, causes the damage, consequently, in order to solve this kind of problem, we have proposed a special fixture for the insulator tensile testing.

Disclosure of Invention

The utility model provides a special fixture for tension test of an insulator, which solves the problems that the existing fixture of a tension tester cannot clamp the insulator when the insulator is fixed, and the arc surface of the insulator is sunken due to overlarge extrusion force between the fixture and the insulator, so that the insulator is damaged.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a special fixture for insulator tensile test, includes anchor clamps and lower anchor clamps, go up anchor clamps and include shell, hoist and mount piece and a pair of first splint, the top fixed mounting of shell has the hoist and mount piece, just the inside of shell is provided with first splint, lower anchor clamps include anchor clamps seat, movable block, movable clamp splice, protection machanism, the top movable mounting of anchor clamps seat has the movable block, just the internally mounted of movable block has the movable clamp splice, one side surface mounting of movable block has protection machanism, just protection machanism's the other end is connected with the anchor clamps seat, one side of first splint is provided with the arc breach, just the arc breach of first splint is laminated with the cambered surface of the thinner part of insulator upper end just, the one end fixed mounting of movable clamp splice has the second splint, just the shape of second splint is laminated with the cambered surface of the thinner part of insulator lower extreme, protection machanism is the elastic expansion structure of a main component by the spring.

Preferably, the upper surface of shell is provided with a pair of motor groove, just the below in motor groove is provided with the gear groove and is located the inside of shell, the below in gear groove is provided with the splint groove, the inside of shell is provided with the mounting groove between the gear groove, just the top surface fixed mounting in mounting groove has the inductor.

Preferably, the hoisting piece comprises a table-shaped block, a threaded rod is fixedly arranged at the top of the table-shaped block, and a nut is arranged on the periphery of the upper half section of the threaded rod.

Preferably, the first clamping plate is installed in the clamping plate groove, a first limiting block is arranged on the top surface of the first clamping plate, racks are fixedly installed on the top surface of the first clamping plate, rotating gears are arranged between the racks, and a first servo motor is connected to the top surface of the rotating gears.

Preferably, the fixture seat comprises a bottom plate, a fixture table is fixedly arranged on the top surface of the bottom plate, a movable groove is formed in the top surface of the fixture table, a baffle is arranged on one side of the movable groove, and a supporting rod is fixedly arranged on the surface of the other side of the baffle.

Preferably, the other end of the supporting rod is connected with a bottom plate, and the bottom plate is arranged on a base of the tensile testing machine through bolts.

Preferably, the both sides surface of movable block is provided with the spout, just the spout agrees with each other with the movable groove, the inside of movable block is provided with the clamp splice groove, just the top of clamp splice groove is provided with spacing movable groove, the bottom of clamp splice groove is provided with the bottom block groove, just the one end of bottom block groove is provided with the bearing groove.

Preferably, a second clamping plate is fixedly arranged at one end of the movable clamping block, a second limiting block is fixedly arranged on the top surface of the movable clamping block, a threaded bottom block is fixedly arranged at the bottom of the movable clamping block, and a screw rod is arranged in the threaded bottom block.

Preferably, a fixed bearing is installed at one end of the screw rod, and the other end of the screw rod is connected with the output end of the second servo motor.

Preferably, mounting seats are arranged at two ends of the protection mechanism, a telescopic rod is arranged between the mounting seats, and a spring is arranged at the periphery of the telescopic rod.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the first clamping plates and the movable clamping blocks are arranged, so that when the insulator is clamped, the thinner part of the upper end of the insulator is clamped mainly through the gathering structure between the first clamping plates, and then the thinner part of the upper end of the insulator is extruded between the first clamping plates to a certain extent to clamp the upper end of the insulator, and the lower end of the insulator is clamped, so that the insulator clamping effect of the insulator clamping device is better and the insulator clamping effect is more compact.

2. According to the utility model, the protection mechanism is arranged, so that when the device clamps the lower end of the insulator, if the extrusion force between the second clamping plate and the surface of the insulator is too large, the spring can generate elastic deformation to be shortened, the extrusion force between the second clamping plate and the insulator is reduced, the protection effect on the insulator is realized, and the damage to the surface of the insulator caused by deformation due to the fact that the extrusion force is too large can be effectively prevented.

To sum up, this device is better to the clamping effect of insulator, presss from both sides more tightly, and can play certain guard action to the insulator, prevents effectively that the insulator from being extruded and producing the damage.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the upper clamp of the present utility model.

Fig. 3 is a schematic cross-sectional view of the housing of the present utility model.

Fig. 4 is an exploded view of the lower clamp of the present utility model.

FIG. 5 is a schematic cross-sectional view of a movable block according to the present utility model.

Fig. 6 is an enlarged view of fig. 4 at a in accordance with the present utility model.

Fig. 7 is an assembly view of the present utility model.

Fig. 8 is a schematic structural view of an insulator.

Reference numerals in the drawings: 1. a clamp is arranged; 11. a housing; 111. a motor slot; 112. a gear groove; 113. a clamping plate groove; 114. a mounting groove; 115. an inductor; 12. hoisting the piece; 121. a mesa block; 122. a threaded rod; 123. a nut; 13. a first clamping plate; 131. a first limiting block; 132. a rack; 133. rotating the gear; 134. a first servo motor; 2. a lower clamp; 21. a clamp seat; 211. a bottom plate; 212. a clamp table; 213. a movable groove; 214. a baffle; 215. a support rod; 216. a bolt; 22. a movable block; 221. a chute; 222. a clamp block groove; 223. a limit movable groove; 224. a bottom block groove; 225. a bearing groove; 23. a movable clamping block; 231. a second clamping plate; 232. a second limiting block; 233. a threaded bottom block; 234. a screw rod; 235. fixing a bearing; 236. a second servo motor; 24. a protection mechanism; 241. a mounting base; 242. a telescopic rod; 243. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-8, a special fixture for tension test of an insulator, including an upper fixture 1 and a lower fixture 2, the upper fixture 1 includes a housing 11, a hoisting member 12 and a pair of first clamping plates 13, the top fixed mounting of the housing 11 has the hoisting member 12, and the inside of the housing 11 is provided with the first clamping plates 13, the upper end of the insulator is clamped, the lower fixture 2 includes a fixture seat 21, a movable block 22, a movable clamping block 23, a protection mechanism 24, the movable block 22 is movably mounted above the fixture seat 21, can slide on the fixture seat 21, and the movable block 22 internally mounted has the movable clamping block 23, a protection mechanism 24 is mounted on one side surface of the movable block 22, the insulator is protected, and the other end of the protection mechanism 24 is connected with the fixture seat 21, one side of the first clamping plates 13 is provided with an arc gap, and the arc surface of the thinner part of the upper end of the insulator just can form a closed structure between the pair of first clamping plates 13, one end of the movable clamping block 23 is movably mounted with the second clamping plates 231, and the second end of the second clamping plates 231 is formed by the second arc surface of the second elastic structure, and the second end of the second clamping plates 231 is formed by just closing the second elastic structure.

As shown in fig. 2 and 3, the upper surface of the housing 11 is provided with a pair of motor grooves 111 for mounting the first servo motor 134, and the lower part of the motor grooves 111 is provided with a gear groove 112 located in the housing 11 for rotating the rotary gear 133, the lower part of the gear groove 112 is provided with a clamp plate groove 113 for moving the first clamp plate 13 in the housing 11, the inside of the housing 11 is provided with mounting grooves 114 between the gear grooves 112, the top surface of the mounting grooves 114 is fixedly provided with an inductor 115, the lifting member 12 comprises a table-shaped block 121, the top of the table-shaped block 121 is fixedly provided with a threaded rod 122, the periphery of the upper half section of the threaded rod 122 is provided with a nut 123 for mounting the upper clamp 1 on the tensile testing machine, the first clamp plate 13 is mounted in the clamp plate groove 113, the top surface of the first clamp plate 13 is provided with a first limiting block 131 for limiting the moving direction of the first clamp plate 13, the top surface of the first clamp plate 13 is fixedly provided with a rack 132 for driving the first clamp plate 13 to move, the rotary gear 133 is arranged between the racks 132, and the top surface of the rotary gear 133 is fixedly provided with a threaded rod 122, and the top surface of the rotary gear 133 is connected with the output end of the first servo motor 134.

As shown in fig. 4, 5 and 6, the clamp seat 21 comprises a bottom plate 211, a clamp table 212 is fixedly installed on the top surface of the bottom plate 211, a movable block 22 is provided with a movable groove 213 on the top surface of the clamp table 212 for installing the movable block 22, a baffle 214 is arranged on one side of the movable groove 213, a supporting rod 215 is fixedly installed on the other side surface of the baffle 214, the other end of the supporting rod 215 is connected with the bottom plate 211, a supporting reinforcement effect is provided for the baffle 214, the bottom plate 211 is installed on the base of the tensile testing machine through a bolt 216, sliding grooves 221 are arranged on two side surfaces of the movable block 22, the sliding grooves 221 are mutually matched with the movable groove 213, a movable installation structure is formed between the clamp seat 21 and the movable block 22, a clamp block groove 222 is arranged in the movable block 22 for the movable clamp block 23 to move, a limiting movable groove 223 is arranged on the top of the clamp block groove 222 for the second limiting block 232 to move, the bottom of the clamping block groove 222 is provided with a bottom block groove 224, one end of the bottom block groove 224 is provided with a bearing groove 225, one end of the movable clamping block 23 is fixedly provided with a second clamping plate 231 which is in direct contact with the insulator and forms a certain extrusion force on the insulator, the top surface of the movable clamping block 23 is fixedly provided with a second limiting block 232 which limits the moving direction of the movable clamping block 23, the bottom of the movable clamping block 23 is fixedly provided with a threaded bottom block 233, the inside of the threaded bottom block 233 is provided with a screw rod 234, the threaded bottom block 233 can move on the screw rod 234, one end of the screw rod 234 is provided with a fixed bearing 235, the other end of the screw rod 234 is connected with the output end of a second servo motor 236, the second servo motor 236 can control the movement of the threaded bottom block 233 and further control the movement of the movable clamping block 23, the two ends of the protection mechanism 24 are provided with mounting seats 241, telescopic rods 242 are arranged between the mounting seats 241, the outer periphery of the telescopic rod 242 is provided with a spring 243 which protects the insulator.

Working principle: when the device is used, the lower end of an insulator is placed between the second clamping plates 231, the second servo motor 236 operates to drive the screw rod 234 to rotate, the movable clamping block 23 moves forwards until the two second clamping plates 231 clamp the insulator, the second servo motor 236 continues to operate until the movable block 22 moves to one side, the protection mechanism 24 shortens, the lower end of the insulator is completely clamped between the two second clamping plates 231 at the moment, then, the pulling plate of the tensile testing machine is controlled to move downwards until the upper end of the insulator is sleeved into the upper clamp 1, the upper end of the insulator is contacted with the inductor 115, the first servo motor 134 operates to drive the rotating gear 133 to rotate, and the rack 132 drives the first clamping plate 13 to fold towards the center of the two clamping plates to clamp the upper end of the insulator, so that the fixation of the insulator can be completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a special fixture for insulator tensile test, includes anchor clamps (1) and lower anchor clamps (2), its characterized in that, go up anchor clamps (1) including shell (11), hoist and mount piece (12) and a pair of first splint (13), the top fixed mounting of shell (11) has hoist and mount piece (12), just the inside of shell (11) is provided with first splint (13), lower anchor clamps (2) include anchor clamps seat (21), movable block (22), movable clamp block (23), protection machanism (24), movable block (22) are installed to the top of anchor clamps seat (21), just movable clamp block (23) are installed to the internally mounted of movable block (22), one side surface mounting of movable block (22) has protection machanism (24), just the other end of protection machanism (24) is connected with anchor clamps seat (21).

One side of first splint (13) is provided with the arc breach, just the arc breach of first splint (13) is laminated with the cambered surface of the thinner part of insulator upper end just, the one end fixed mounting of activity clamp splice (23) has second splint (231), just the shape of second splint (231) is laminated with the cambered surface of the thinner part of insulator lower extreme just, protection machanism (24) are one kind and are the elasticity extending structure by spring (243) as main component.

2. The special fixture for tension test of insulators according to claim 1, wherein a pair of motor grooves (111) are formed in the upper surface of the shell (11), a gear groove (112) is formed below the motor grooves (111) and located in the shell (11), a clamping plate groove (113) is formed below the gear groove (112), a mounting groove (114) is formed in the shell (11) and between the gear grooves (112), and an inductor (115) is fixedly mounted on the top surface of the mounting groove (114).

3. The special fixture for tension test of insulators according to claim 1, wherein the lifting piece (12) comprises a table-shaped block (121), a threaded rod (122) is fixedly installed at the top of the table-shaped block (121), and a nut (123) is installed at the periphery of the upper half section of the threaded rod (122).

4. The special fixture for insulator tension test according to claim 2, wherein the first clamping plate (13) is installed in the clamping plate groove (113), a first limiting block (131) is arranged on the top surface of the first clamping plate (13), a rack (132) is fixedly installed on the top surface of the first clamping plate (13), a rotating gear (133) is arranged between the racks (132), and a first servo motor (134) is connected to the top surface of the rotating gear (133).

5. The special fixture for tension test of insulators according to claim 1, wherein the fixture base (21) comprises a bottom plate (211), a fixture table (212) is fixedly installed on the top surface of the bottom plate (211), a movable groove (213) is formed in the top surface of the fixture table (212), a baffle plate (214) is arranged on one side of the movable groove (213), and a supporting rod (215) is fixedly installed on the surface of the other side of the baffle plate (214).

6. The special fixture for tension test of insulator according to claim 5, wherein the other end of the supporting rod (215) is connected with the bottom plate (211), and the bottom plate (211) is mounted on the base of the tension tester by bolts (216).

7. The special fixture for insulator tension test according to claim 5, wherein both side surfaces of the movable block (22) are provided with sliding grooves (221), and the sliding grooves (221) are mutually matched with the movable grooves (213), a clamping block groove (222) is arranged in the movable block (22), a limiting movable groove (223) is arranged at the top of the clamping block groove (222), a bottom block groove (224) is arranged at the bottom of the clamping block groove (222), and a bearing groove (225) is arranged at one end of the bottom block groove (224).

8. The special fixture for tension test of insulators according to claim 1, wherein a second clamping plate (231) is fixedly installed at one end of the movable clamping block (23), a second limiting block (232) is fixedly installed on the top surface of the movable clamping block (23), a threaded bottom block (233) is fixedly installed at the bottom of the movable clamping block (23), and a screw rod (234) is arranged in the threaded bottom block (233).

9. The special fixture for tension test of insulators according to claim 8, wherein a fixed bearing (235) is installed at one end of the screw rod (234), and the other end of the screw rod (234) is connected with an output end of the second servo motor (236).

10. The special fixture for tension test of insulator according to claim 1, wherein the two ends of the protection mechanism (24) are provided with mounting seats (241), a telescopic rod (242) is installed between the mounting seats (241), and a spring (243) is arranged on the periphery of the telescopic rod (242).