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CN-224231464-U - Chain tensile strength testing arrangement

CN224231464UCN 224231464 UCN224231464 UCN 224231464UCN-224231464-U

Abstract

The utility model provides a chain tensile strength testing device, which relates to the technical field of chain testing devices and comprises: the base, base bottom fixed mounting has two pairs of supporting legs, base top fixedly connected with backplate, backplate front side fixed mounting has the protective housing, is equipped with the guard gate on the protective housing. This kind of device protects the operator through protective housing and guard gate, avoids the chain fracture to produce the piece to fly to penetrate, carries out tensile test to the chain through test assembly, can not influence the operator through the setting of measuring assembly and learn the tensile coefficient of chain, and transparent guard gate can make things convenient for the operator to watch the condition of chain, avoids appearing the condition emergence of excessive stretching influence number of degrees.

Inventors

  • WEI HAOWEN

Assignees

  • 曾建平

Dates

Publication Date
20260512
Application Date
20250520

Claims (7)

  1. 1. A chain tensile strength testing device, comprising: the base (1), two pairs of supporting legs (11) are fixedly arranged at the bottom of the base (1), a backboard (12) is fixedly connected to the top of the base (1), a protective box (13) is fixedly arranged on the front side of the backboard (12), and a protective door (14) is arranged on the protective box (13); The measuring assembly is arranged on the back plate (12) and is convenient for observing the tensile strength of the chain, and comprises a sliding groove (2), a moving block (21), a connecting rod (22), a pointer (23) and scale marks (24); The test assembly is arranged in the protective box (13) and used for testing the chain, and comprises a fixed plate (3), a spring buckle a (31), a moving rod (32), a spring buckle b (33) and a screw rod (34).
  2. 2. The chain tensile strength testing device according to claim 1, wherein a chute (2) is formed in the back plate (12), a moving block (21) is arranged in the chute (2), a connecting rod (22) is fixedly connected to the back side of the moving block (21), the connecting rod (22) is in an L-shaped structure, a pointer (23) is fixedly connected to the top end of the connecting rod (22), and a scale mark (24) is arranged at the position, close to the top, of the front side of the protective box (13).
  3. 3. The chain tensile strength testing device according to claim 1, wherein a fixed plate (3) is fixedly connected to the front side of the back plate (12), a spring fastener a (31) is arranged on one side of the fixed plate (3), a moving rod (32) is fixedly connected to the front side of the moving block (21), a spring fastener b (33) is fixedly connected to one side of the moving rod (32) and one side of the fixed plate (3), a screw (34) is rotatably connected between inner walls of two opposite ends of the sliding groove (2), and the moving block (21) is in threaded connection with the outside of the screw (34).
  4. 4. The chain tensile strength testing device according to claim 1, wherein limiting grooves (25) are respectively formed in the inner top and the inner bottom of the sliding groove (2), limiting blocks (26) are respectively fixedly connected with the inner top and the inner bottom of the moving block (21), and the limiting blocks (26) are respectively located in the sliding groove (2).
  5. 5. The chain tensile strength testing device according to claim 1, wherein a movable cavity (27) is formed in the back plate (12), one end of the screw rod (34) extends into the movable cavity (27) and is fixedly connected with a bevel gear a (28), and a speed reducer a (29) is fixedly installed on the back side of the back plate (12) close to the position of the movable cavity (27).
  6. 6. The chain tensile strength testing device according to claim 5, wherein one end of a driving shaft of the speed reducer a (29) extends to the movable cavity (27) and is fixedly connected with a bevel gear b (210), and the bevel gear b (210) is in meshed connection with the bevel gear a (28).
  7. 7. The chain tensile strength testing device according to claim 1, wherein one side of the fixing plate (3) is fixedly connected with a mounting table (35), a speed reducer b (36) is fixedly mounted on the top of the mounting table (35), and one end of a driving shaft of the speed reducer b (36) penetrates through the fixing plate (3) and is connected with one end of the spring buckle a (31).

Description

Chain tensile strength testing arrangement Technical Field The utility model relates to the technical field of chain testing devices, in particular to a chain tensile strength testing device. Background The chain wheel is used as a more common structure in the mechanical industry, the chain tensile coefficient determines the quality of the chain, the chain which is easy to stretch is not easy to use, so that the chain is subjected to sampling stretch detection before leaving a factory, the strength of the chain is detected, most of the whole structure and the use function of the existing tensile test equipment are single, and the tensile force can only be tested when the chain is stretched, and the elongation can not be directly obtained, so that a testing device capable of simultaneously testing the tensile force and the elongation is needed. According to the chain tensile testing device disclosed in the patent publication No. CN202021766977.1 in the Chinese of the search, the position of the sliding block and the rotation angle of the rotating disc can be directly controlled by the operating button on the operating box, the tensile of different positions of the chain can be conveniently tested, the scale plate is arranged, the displacement of the chain in the testing process can be directly read out through the scale plate, the next testing can be conveniently carried out, the testing is more comprehensive, however, some problems still exist in the actual using process, the chain is broken when being stretched, broken fragments can fly away to cause injury to operators, and although the chain is put into a closed space for testing in the prior art, the problem of the operators of the broken fragments flying to injury is solved, but the chain is located in the closed space, and the tensile coefficient and the condition of the chain are inconvenient to see. Disclosure of utility model The utility model aims to solve the technical problems that an operator is protected through the protective box and the protective door to prevent fragments from flying due to breakage of the chain, the chain is subjected to tensile test through the test assembly, the tensile coefficient of the chain is not influenced by the arrangement of the measurement assembly, the operator can know the tensile coefficient of the chain, and the transparent protective door can facilitate the operator to watch the condition of the chain, so that the condition that the degree is influenced by excessive stretching is avoided. The technical problems to be solved by the utility model are realized by adopting the following technical scheme: The chain tensile strength testing device comprises a base, wherein two pairs of supporting legs are fixedly arranged at the bottom of the base, a backboard is fixedly connected to the top of the base, a protective box is fixedly arranged on the front side of the backboard, and a protective door is arranged on the protective box; The measuring assembly is arranged on the backboard and is convenient for observing the tensile strength of the chain, and comprises a sliding groove, a moving block, a connecting rod, a pointer and scale marks; The test assembly is arranged in the protective box and used for testing the chain, and comprises a fixed plate, a spring buckle a, a moving rod, a spring buckle b and a screw rod. Further, the spout has been seted up on the backplate, the inside movable block that is equipped with of spout, movable block dorsal part fixedly connected with connecting rod, the connecting rod is L shape structure setting, connecting rod top fixedly connected with pointer, the protective housing front side is close to top position department and is equipped with the scale mark. Further, backplate front side fixedly connected with fixed plate, fixed plate one side is equipped with spring buckle a, movable block front side fixedly connected with movable rod, movable rod with one side fixedly connected with spring buckle b of fixed plate, rotate between the inner wall at the opposite ends of spout and be connected with the screw rod, movable block threaded connection in the screw rod is outside. Further, limiting grooves are respectively formed in the inner top and the inner bottom of the sliding groove, limiting blocks are respectively fixedly connected with the inner top and the inner bottom of the moving block, and the limiting blocks are respectively located in the sliding groove. Further, a movable cavity is formed in the back plate, one end of the screw rod extends into the movable cavity and is fixedly connected with a bevel gear a, and a speed reducer a is fixedly installed on the back side of the back plate, close to the position of the movable cavity. Further, one end of a driving shaft of the speed reducer a extends to the movable cavity and is fixedly connected with a bevel gear b, and the bevel gear b is in meshed connection with the bevel gear a. Further, a mounting table is fixedly co