CN216978675U

CN216978675U - Torsion testing device

Info

Publication number: CN216978675U
Application number: CN202122312502.6U
Authority: CN
Inventors: 胡书齐
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-07-15
Anticipated expiration: 2031-09-23

Abstract

The application discloses a torsion testing device, which comprises a testing body, the test body comprises a first connecting end and a second connecting end which are arranged at intervals, the first connecting end and the second connecting end can rotate relatively, the first clamp is connected with the first connecting end, the first clamp is provided with a first cavity, the first cavity is used for containing a first part of a sample to be tested, the first clamp is provided with a first inner wall surface forming the first cavity, the first inner wall surface comprises a first bottom wall and a first side wall which is annularly arranged on the periphery of the first bottom wall, the second clamp is connected with the second connecting end, the second clamp is provided with a second cavity which is oppositely arranged with the first cavity, the second cavity is used for containing a second part of the sample to be tested, the second clamp is provided with a second inner wall surface forming the second cavity, and the second inner wall surface comprises a second bottom wall and a second side wall which is annularly arranged on the periphery of the second bottom wall. The design can effectively improve the measurement stability of the sample to be measured so as to ensure the accuracy of the measurement result.

Description

Torsion testing device

Technical Field

The application relates to the technical field of detection equipment, in particular to a torsion testing device.

Background

The torsion testing apparatus is an apparatus for applying a torque to a sample to be tested or generating a torsion motion to the sample to be tested to test the mechanical strength (e.g., the degree of fastening) or the reliability (e.g., the torsion resistance) of the sample to be tested.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a twist reverse testing arrangement, can effectively promote the measurement stability of the sample that awaits measuring to guarantee measuring result's accuracy.

In a first aspect, embodiments of the present application provide a torsion testing apparatus; the torsion testing device comprises a testing body, a first clamp and a second clamp, wherein the testing body comprises a first connecting end and a second connecting end which are arranged at intervals, the first connecting end and the second connecting end can rotate relatively, the first clamp is connected with the first connecting end, the first clamp is provided with a first cavity, the first cavity is used for accommodating a first part of a sample to be tested, the first clamp is provided with a first inner wall surface forming the first cavity, the first inner wall surface comprises a first bottom wall and a first side wall which is annularly arranged on the periphery of the first bottom wall, the second clamp is connected with the second connecting end, the second clamp is provided with a second cavity which is oppositely arranged with the first cavity, the second cavity is used for accommodating a second part of the sample to be tested, the second clamp is provided with a second inner wall surface forming the second cavity, and the second inner wall surface comprises a second bottom wall and a second side wall which is annularly arranged on the periphery of the second bottom wall.

Torsion testing arrangement based on this application embodiment, first cavity is established by first diapire and ring and is established the formation of establishing by first lateral wall that first diapire periphery, the second cavity is established by second diapire and ring and is established the formation of establishing by the second lateral wall that the second diapire periphery, when examining the sample that awaits measuring, inlay the first part of sample that awaits measuring in the first cavity of first anchor clamps, the second part of sample that awaits measuring inlays in the second cavity of second anchor clamps, first anchor clamps can circumference surround the first part of sample that awaits measuring, the second anchor clamps can circumference surround the second part of sample that awaits measuring, so increased the area of contact between the first part of sample that awaits measuring and the first anchor clamps, area of contact between the second part of sample that awaits measuring and the second anchor clamps, thereby can effectively promote the measurement stability of sample that awaits measuring, with the accuracy of assurance measuring result.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a torsion testing apparatus according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of a torsion testing apparatus according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a first clamp and a second clamp in one embodiment of the present application;

FIG. 4 is a schematic structural diagram of a sample to be tested before being mounted on a first fixture and a second fixture according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram illustrating a sample to be tested mounted on a first fixture and a second fixture according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a sample to be tested in a first state and a second state according to an embodiment of the present application;

FIG. 7 is a cross-sectional view of an abutment structure in an embodiment of the present application;

FIG. 8 is an exploded view of a transmission configuration in an embodiment of the present application.

Reference numerals are as follows: 10. a torsion testing device; 11. a test body; 111. a first connection end; 1111. a first splint; 112. a second connection end; 1121. a second splint; 113. a frame; 12. a first clamp; 121. a first chamber; 121a, a first subchamber; 121b, a second subchamber; 1211. a first bottom wall; 1212. a first side wall; 12121. a first mounting hole; 122. a first fastener; 123. a light-through port; 13. a second clamp; 131. a second chamber; 1311. a second bottom wall; 1312. a second side wall; 13121. a second mounting hole; 132. a second fastener; 14. an abutting structure; 15. a transmission structure; 151. a transmission member; 1511. a first connecting shaft; 1512. a rotating shaft; 15121. a first hinged end; 15122. a second hinged end; 1513. a second connecting shaft; 16. a first connecting structure; 161. a first connection block; 162. connecting columns; 1621. an abutting surface; 17. a second connecting structure; 171. a second connecting block; 20. a sample to be tested; 21. a first portion; 22. a second portion; 23. a plug-in part; x, a first direction; y, a second direction; z, third direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

When the sample that awaits measuring examines, need be fixed in the sample that awaits measuring's both ends centre gripping earlier on twisting testing arrangement, then start and twist reverse testing arrangement, twist reverse testing arrangement and exert the moment of torsion to the sample that awaits measuring or let the sample that awaits measuring produce torsional motion, can understand, the sample that awaits measuring is under the exogenic action, the both ends of sample that awaits measuring and the stability of being connected between the twisting testing arrangement have decided the accuracy of the sample that awaits measuring, how effectively promote the measurement stability of the sample that awaits measuring in order to guarantee the accuracy of measuring result and have become the problem that awaits measuring urgently.

In order to solve the above technical problem, please refer to fig. 1 to 8, a first aspect of the present application provides a torsion testing apparatus 10, which can effectively improve the measurement stability of a sample 20 to be measured, so as to ensure the accuracy of a measurement result.

The torsion testing device 10 includes a testing body 11, a first fixture 12 and a second fixture 13, the testing body 11 includes a first connection end 111 and a second connection end 112 arranged at an interval, the first connection end 111 and the second connection end 112 can rotate relatively, the first fixture 12 is connected with the first connection end 111, the first fixture 12 has a first cavity 121, the first cavity 121 is used for accommodating a first portion 21 of a sample 20 to be tested, the first fixture 12 has a first inner wall surface forming the first cavity 121, and the first inner wall surface includes a first bottom wall 1211 and a first side wall 1212 annularly arranged at the periphery of the first bottom wall 1211. The second fixture 13 is connected to the second connection end 112, the second fixture 13 has a second chamber 131 opposite to the first chamber 121, the second chamber 131 is used for accommodating the second portion 22 of the sample 20, the second fixture 13 has a second inner wall surface forming the second chamber 131, and the second inner wall surface includes a second bottom wall 1311 and a second side wall 1312 circumferentially disposed on an outer periphery of the second bottom wall 1311.

According to the torsion testing apparatus 10 of the embodiment of the present application, the first chamber 121 is defined by the first bottom wall 1211 and the first side wall 1212 surrounding the outer periphery of the first bottom wall 1211, the second chamber 131 is defined by the second bottom wall 1311 and the second side wall 1312 surrounding the outer periphery of the second bottom wall 1311, when the sample 20 to be tested is tested, the first portion 21 of the sample 20 to be tested is embedded in the first chamber 121 of the first clamp 12, the second portion 22 of the sample 20 to be tested is embedded in the second chamber 131 of the second clamp 13, the first clamp 12 can circumferentially surround the first portion 21 of the sample 20 to be tested, the second clamp 13 can circumferentially surround the second portion 22 of the sample 20 to be tested, so that the contact area between the first portion 21 of the sample 20 to be tested and the first clamp 12 is increased, the contact area between the second portion 22 of the sample 20 to be tested and the second clamp 13 is increased, and thus the measurement stability of the sample 20 to be tested can be effectively improved, to ensure the accuracy of the measurement results.

The specific structure of the torsion testing apparatus 10 will be described in detail below with reference to fig. 1-8.

The torsion testing apparatus 10 is suitable for applying a torque to the sample 20 to be tested or allowing the sample 20 to be tested to generate a torsion motion to test certain properties of the sample 20 to be tested, for example, the torsion testing apparatus 10 can be used for detecting the number of torsion times of the sample 20 to be tested to detect the torsion life of the sample 20 to be tested, and the torsion testing apparatus 10 can also be used for detecting the torsion resistance of the sample 20 to be tested to detect whether the torsion resistance of the sample 20 to be tested meets the torsion requirement.

The sample 20 to be tested is a product requiring a testing torque, for example, the sample 20 to be tested may be, but is not limited to, a rotating shaft, a bearing, a bottle cap, a rotary charger, etc.

Fig. 1 to 3 are schematic structural views of a torsion testing apparatus in an embodiment of the present disclosure, fig. 2 is an exploded schematic structural view of the torsion testing apparatus in an embodiment of the present disclosure, and fig. 3 is a cross-sectional view of a first clamp and a second clamp in an embodiment of the present disclosure.

The torsion testing apparatus 10 includes a test body 11, a first jig 12, and a second jig 13.

The test body 11 is used as a structure for carrying other components in the torsion testing apparatus 10, and the test body 11 includes a first connection end 111 and a second connection end 112 arranged at an interval, wherein the first connection end 111 corresponds to a component (described below) in the test body 11 for clamping and fixing the first clamp 12, and the second connection end 112 corresponds to a component (described below) in the test body 11 for clamping and fixing the second clamp 13, and the relative position between the first connection end 111 and the second connection end 112 will be expanded and described below. The first connecting end 111 and the second connecting end 112 can rotate relatively, for example, the first connecting end 111 is fixed, the second connecting end 112 rotates, so that the first connecting end 111 and the second connecting end 112 rotate relatively, or the first connecting end 111 rotates and the second connecting end 112 is fixed, so that the first connecting end 111 and the second connecting end 112 rotate relatively, or the first connecting end 111 rotates and the second connecting end 112 also rotates, and the rotation speed of the first connecting end 111 is not equal to the rotation speed of the second connecting end 112 or the rotation direction of the first connecting end 111 is opposite to the rotation direction of the second connecting end 112, so that the first connecting end 111 and the second connecting end 112 rotate relatively.

The first fixture 12 is used as a component for fixing the sample 20 to be tested in the torsion testing apparatus 10, and the first fixture 12 is connected to the first connection end 111, for example, the first fixture 12 may be non-detachably connected to the first connection end 111, or may be detachably connected to the first connection end 111, when the first fixture 12 is non-detachably connected to the first connection end 111, the first fixture 12 may be fixed to the first connection end 111 by gluing, and when the first fixture 12 is detachably connected to the first connection end 111, the first fixture 12 may be connected to the first connection end 111 by snapping connection, and a specific connection manner between the first fixture 12 and the first connection end 111 will be expanded below.

The first fixture 12 has a first chamber 121, and the first chamber 121 is used for accommodating a first portion 21 of the sample 20 to be tested, wherein a part of the first fixture 12 is hollowed out to form the first chamber 121, and the first portion 21 of the sample 20 to be tested is embedded in the first chamber 121, of course, the first portion 21 may be partially embedded in the first chamber 121 of the first fixture 12, and the first portion 21 may also be completely embedded in the first chamber 121 of the first fixture 12. It is understood that the first fixture 12 is used for clamping and fixing the first portion 21 of the sample 20, the first portion 21 of the sample 20 and the first fixture 12 may be non-detachably connected or detachably connected, when the first portion 21 of the sample 20 and the first fixture 12 are non-detachably connected, the first portion 21 of the sample 20 and the first fixture 12 may be fixed by gluing, when the first portion 21 of the sample 20 and the first fixture 12 are detachably connected, the first portion 21 of the sample 20 and the first fixture 12 may be connected by means of a snap connection, and the specific connection manner between the first portion 21 of the sample 20 and the first fixture 12 will be described in the following paragraphs.

The first fixture 12 has a first inner wall surface forming the first chamber 121, and the first inner wall surface includes a first bottom wall 1211 and a first side wall 1212 annularly disposed on an outer periphery of the first bottom wall 1211, that is, the first bottom wall 1211 and the first side wall 1212 together enclose the first chamber 121 forming the first fixture 12. It will be appreciated that the specific shape of the first chamber 121 will need to be determined by the specific configuration of the first portion 21 of the sample 20 to be tested.

As shown in fig. 1 to fig. 3, the second fixture 13 is used as a component for fixing a sample 20 to be tested in the torsion testing apparatus 10, the second fixture 13 is connected to the second connection end 112, for example, the second fixture 13 may be non-detachably connected to the second connection end 112, or may be detachably connected to the second connection end 112, when the second fixture 13 is non-detachably connected to the second connection end 112, the second fixture 13 may be adhesively fixed to the second connection end 112 by glue, when the second fixture 13 is detachably connected to the second connection end 112, the second fixture 13 may be connected to the second connection end 112 by a snap-fit connection, and the specific connection manner between the second fixture 13 and the second connection end 112 will be described below.

The second fixture 13 has a second chamber 131 opposite to the first chamber 121, the second chamber 131 is used for accommodating the second part 22 of the sample 20 to be tested, wherein the second fixture 13 is partially hollowed out to form the second chamber 131, an opening of the second chamber 131 is opposite to an opening of the first chamber 121, the second part 22 of the sample 20 to be tested is embedded in the second chamber 131, of course, the second part 22 may be partially embedded in the second chamber 131 of the second fixture 13, and the second part 22 may also be completely embedded in the second chamber 131 of the second fixture 13. It is understood that the second clamp 13 is used for clamping and fixing the second portion 22 of the sample 20, the second portion 22 of the sample 20 and the second clamp 13 can be connected non-detachably or detachably, when the second portion 22 of the sample 20 and the second clamp 13 are connected non-detachably, the second portion 22 of the sample 20 and the second clamp 13 can be fixed by gluing, when the second portion 22 of the sample 20 and the second clamp 13 are connected detachably, the second portion 22 of the sample 20 and the second clamp 13 can be connected by means of a snap connection, and the specific connection manner between the second portion 22 of the sample 20 and the second clamp 13 will be described in the following paragraphs.

The second fixture 13 has a second inner wall surface forming the second cavity 131, and the second inner wall surface includes a second bottom wall 1311 and a second side wall 1312 surrounding the outer periphery of the second bottom wall 1311, that is, the second bottom wall 1311 and the second side wall 1312 jointly enclose the second cavity 131 forming the second fixture 13. It will be appreciated that the specific shape of the second chamber 131 will need to be determined by the specific configuration of the second portion 22 of the sample 20 to be tested.

As shown in fig. 1-2, in consideration that the torsion testing apparatus 10 needs to test the next sample 20 after completing the test of the previous sample 20 to meet the requirement of testing a large number of samples 20 to be tested, in order to improve the practicability of the torsion testing apparatus 10, it is further designed that the first clamp 12 is detachably connected to at least one of the first connection end 111 and the first clamp 12 and the first portion 21, and/or the second clamp 13 is detachably connected to at least one of the second connection end 112 and the second clamp 13 and the second portion 22. In the design, a designer can reasonably design the disassembly relationship between the first connection end 111 and the first clamp 12, between the first clamp 12 and the first part 21 of the test sample, between the second connection end 112 and the second clamp 13, between the second clamp 13 and the second part 22 of the sample 20 to be tested according to factors such as cost, and the like, so as to enhance the applicability and practicability of the torsion testing device 10.

For example, in the first embodiment, the first clamp 12 is detachably connected to the first connection end 111 of the test body 11, and the second clamp 13 is detachably connected to the second connection end 112 of the test body 11, that is, the first portion 21 of the sample 20 to be tested is non-detachably connected to the first clamp 12, and the second portion 22 of the sample 20 to be tested is non-detachably connected to the second clamp 13 to form a whole. After the last sample 20 to be measured is detected, the last sample 20 to be measured is scrapped together with the first clamp 12 and the second clamp 13. This case is suitable for the case where the first jig 12 and the second jig 13 are low in production cost.

For example, in the second embodiment, the first clamp 12 is detachably connected to the first portion 21 of the sample 20 to be tested, and the second clamp 13 is detachably connected to the second portion 22 of the sample 20 to be tested, that is, the first clamp 12 is not detachably connected to the first connection end 111 of the test body 11, the second clamp 13 is not detachably connected to the second connection end 112 of the test body 11, and the sample 20 to be tested is in a split structure with the first clamp 12 and the second clamp 13. And after the previous sample 20 to be detected is detected, independently disassembling the sample 20 to be detected. This case is suitable for the case where the production cost of the first jig 12 and the second jig 13 is high.

Fig. 4-5 are schematic structural diagrams illustrating a sample to be tested being mounted on a first fixture and a second fixture in an embodiment of the present disclosure, and fig. 5 is a schematic structural diagram illustrating the sample to be tested being mounted on the first fixture and the second fixture in an embodiment of the present disclosure.

Considering that the first portion 21 of the test sample is embedded in the first chamber 121 of the first fixture 12, the first portion 21 of the test sample and the first inner wall surface of the first chamber 121 may be in an interference fit manner to realize relative fixing of the position between the first portion 21 of the test sample and the first fixture 12, and certainly, the second portion 22 of the test sample is embedded in the second chamber 131 of the second fixture 13, and the second portion 22 of the test sample and the second inner wall surface of the second chamber 131 may also be in an interference fit manner to realize relative fixing of the position between the second portion 22 of the test sample and the second fixture 13.

The specific connection manner of the first portion 21 of the test sample and the first clamp 12 and the specific connection manner of the second portion 22 of the test sample and the second clamp 13 can be, but not limited to, the following embodiments.

For example, in the first embodiment, the first sidewall 1212 defines at least one first mounting hole 12121 extending through the first fixture 12, the first fixture 12 further includes a first fastening member 122 corresponding to each first mounting hole 12121, and the first fastening member 122 passes through the first mounting hole 12121 and is used for locking the first portion 21 of the sample 20 to be tested in the first chamber 121. In the design, the first fastening member 122 penetrates through the first mounting hole 12121 from the outer side of the first clamp 12 and then abuts against the first portion 21 of the test sample to lock and fix the first portion 21 of the sample 20 to be tested relative to the first clamp 12, so that the connection stability between the first portion 21 of the sample 20 to be tested and the first clamp 12 is enhanced, the measurement accuracy of the torsion testing apparatus 10 is improved, and the difficulty in mounting and dismounting between the first portion 21 of the sample 20 to be tested and the first clamp 12 is reduced.

For example, in the second embodiment, the second sidewall 1312 defines at least one second mounting hole 13121 penetrating through the second fixture 13, the second fixture 13 further includes a second fastening member 132 corresponding to each second mounting hole 13121, and the second fastening member 132 penetrates through the second mounting hole 13121 and is used for locking the second portion 22 of the sample 20 to be tested in the second chamber 131. In the design, the second fastening member 132 penetrates through the second mounting hole 13121 from the outer side of the second fixture 13 and then abuts against the second portion 22 of the test sample to lock and fix the second portion 22 of the sample 20 to be tested relative to the second fixture 13, so that the connection stability between the second portion 22 of the sample 20 to be tested and the second fixture 13 is enhanced, the measurement accuracy of the torsion testing apparatus 10 is improved, and meanwhile, the difficulty in mounting and dismounting between the second portion 22 of the sample 20 to be tested and the second fixture 13 is reduced.

For example, in the third embodiment, the first sidewall 1212 is opened with at least one first mounting hole 12121 penetrating through the first fixture 12, the first fixture 12 further includes a first fastening member 122 corresponding to each first mounting hole 12121, the first fastening member 122 penetrates through the first mounting hole 12121 and is used for locking the first portion 21 of the sample 20 to be tested in the first chamber 121; the second sidewall 1312 defines at least one second mounting hole 13121 penetrating through the second fixture 13, the second fixture 13 further includes a second fastening member 132 corresponding to each second mounting hole 13121, and the second fastening member 132 penetrates through the second mounting hole 13121 and is used for locking the second portion 22 of the sample 20 to be tested in the second chamber 131. In the design, the first fastening member 122 penetrates through the first mounting hole 12121 from the outer side of the first clamp 12 and then abuts against the first part 21 of the test sample to lock and fix the first part 21 of the sample 20 to be tested relative to the first clamp 12, so that the connection stability between the first part 21 of the sample 20 to be tested and the first clamp 12 is enhanced, the measurement accuracy of the torsion testing device 10 is improved, and the difficulty in mounting and dismounting between the first part 21 of the sample 20 to be tested and the first clamp 12 is reduced; the second fastening member 132 penetrates through the second mounting hole 13121 from the outer side of the second fixture 13 and then abuts against the second portion 22 of the test sample to lock and fix the second portion 22 of the sample 20 to be tested relative to the second fixture 13, so that the connection stability between the second portion 22 of the sample 20 to be tested and the second fixture 13 is enhanced, the measurement accuracy of the torsion testing apparatus 10 is improved, and meanwhile, the difficulty in mounting and dismounting between the second portion 22 of the sample 20 to be tested and the second fixture 13 is reduced.

Based on the above embodiments, specifically, the first fastening element 122 is a screw, the first mounting hole 12121 is a threaded hole, and the screw passes through the threaded hole from the outside of the first clamp 12 and abuts against the first portion 21 of the sample 20 to be tested so as to lock and fix the first portion 21 of the sample 20 to be tested relative to the first clamp 12. The second fastening member 132 is a screw, the second mounting hole 13121 is a threaded hole, and the screw penetrates through the threaded hole from the outer side of the second clamp 13 and abuts against the second portion 22 of the sample 20 to be tested so as to lock and fix the second portion 22 of the sample 20 to be tested with respect to the second clamp 13. It should be noted that the number of the first mounting holes 12121, the number of the first fastening members 122, the number of the second mounting holes 13121, and the number of the second fastening members 132 are not limited herein. The number of the first fastening members 122 may be the same as or different from the number of the first mounting holes 12121, and only one first fastening member 122 passes through one first mounting hole 12121. The number of the second fastening members 132 may be the same as or different from the number of the second mounting holes 13121, and only one second fastening member 132 is inserted into one second mounting hole 13121. The number of first mounting holes 12121 may be the same as or different from the number of second mounting holes 13121, and the number of first fasteners 122 may be the same as or different from the number of second fasteners 132. For example, in the embodiment of the present application, the number of the first mounting holes 12121, the first fastening members 122, the second mounting holes 13121, and the second fastening members 132 is four, and four of the first mounting holes 12121 are uniformly distributed along the circumferential direction of the first side wall 1212, and four of the second mounting holes 13121 are uniformly distributed along the circumferential direction of the second side wall 1312.

As shown in fig. 3 and fig. 6, fig. 6 is a schematic structural diagram of a sample to be tested in a first state and a second state according to an embodiment of the present application.

Considering that the specific structure of the first clamp 12 associated with the first portion 21 of the sample 20 to be tested is different for different samples 20 to be tested, i.e. the specific structure of the first portion 21 of the sample 20 to be tested determines the specific structure of the first clamp 12, for example, in some embodiments, the sample 20 to be tested further includes a plug 23, the plug 23 is connected to the first portion 21, and the plug 23 has a first state located in the first portion 21 and a second state located at least partially on a side of the first portion 21 away from the second portion 22, when the first portion 21 rotates relative to the second portion 22, the plug 23 can be switched between the first state and the second state, i.e. at least one of the first portion 21 and the second portion 22 can rotate, the plug 23 has a first state where the first portion 21 is completely received in the first portion 21 after rotating relative to the second portion 22, And a second state that the first part 21 at least partially extends out of the first part 21 after rotating relative to the second part 22, and the first part 21 and the second part 22 realize the switching of the plug part 23 between the first state and the second state through relative rotation. Specifically, when the sample 20 to be tested is a rotary charger, the first part 21 can be understood as a rotary head of the rotary charger, the second part 22 can be correspondingly understood as a body of the rotary charger, the plug 23 can be correspondingly understood as a plug of the rotary charger, an opening is formed in one side of the rotary head away from the body, the plug is connected with the rotary head in a sliding manner, and after the rotary head rotates relative to the body, the plug at least partially extends out of the rotary head through the opening of the rotary head.

Based on the above embodiment, further, the first side wall 1212 is provided with the abutting structure 14, the abutting structure 14 divides the first chamber 121 into the first sub-chamber 121a close to the first connection end 111 and the second sub-chamber 121b far from the first connection end 111, and the second sub-chamber 121b is communicated with the first sub-chamber 121a, that is, the abutting structure 14 functions as a barrier similar to a convex structure to divide the first chamber 121 into the first sub-chamber 121a and the second sub-chamber 121b which are communicated with each other. The abutting structure 14 may be formed integrally with the first fixture 12 by injection molding. The specific expression for the abutment structure 14 will be developed below.

Further, the second sub-chamber 121b is configured to accommodate the first portion 21, the abutting structure 14 is configured to abut against the first portion 21, and the first sub-chamber 121a is configured to accommodate the insertion part 23 extending out of the first portion 21 in the second state. That is to say, the first portion 21 of the sample 20 to be measured is embedded in the second sub-chamber 121b, and meanwhile, the first portion 21 of the sample 20 to be measured abuts against the abutting structure 14, after the first clamp 12 drives the first portion 21 of the sample 20 to be measured to rotate relative to the second portion 22 of the sample 20 to be measured, the insertion part 23 of the sample 20 to be measured extends out of the first portion 21 of the sample 20 to be measured and is accommodated in the second sub-chamber 121b through the opening of the second sub-chamber 121b communicated with the first sub-chamber 121 a. In the design, through the design of the abutting structure 14, the contact area between the first part 21 of the sample 20 to be tested and the first clamp 12 is increased, so that the connection stability between the first part 21 of the sample 20 to be tested and the first clamp 12 is further enhanced; through the design of the abutting structure 14, the first chamber 121 of the first clamp 12 is divided into a first sub-chamber 121a for accommodating the first portion 21 of the sample 20 to be tested and a second sub-chamber 121b for accommodating the plug-in portion 23 of the sample 20 to be tested, so that the adaptability of the first clamp 12 and the sample 20 to be tested is further improved.

Fig. 7 is a cross-sectional view of an abutment structure in an embodiment of the present application, as shown in fig. 3 and 7.

Considering that the abutting structure 14 is used as a component of the torsion testing apparatus 10 for dividing the first chamber 121 of the first clamp 12 into the first sub-chamber 121a and the second sub-chamber 121b which are communicated with each other, the abutting structure 14 functions as a barrier similar to a convex structure, and the specific expression about the abutting structure 14 can be, but is not limited to, the following several possible embodiments.

For example, as shown in fig. 7 (a), in the first embodiment, the abutting structure 14 is an annular structure that is arranged around the circumference of the first side wall 1212, that is, the abutting structure 14 is an annular convex structure, and the abutting structure 14 may be a square ring or a circular ring, and it is understood that the abutting structure 14 is adapted to the shape of the first cavity 121 of the first clamp 12, that is, the outer annular surface of the abutting structure 14 is attached to the first side wall 1212 of the first inner wall surface. In this design, the abutting structure 14 is designed to be annular, so that the contact area between the first part 21 of the sample 20 to be tested and the abutting structure 14 is increased, the contact area between the first part 21 of the sample 20 to be tested and the first clamp 12 is further increased, and the connection stability between the first part 21 of the sample 20 to be tested and the first clamp 12 is further enhanced.

For example, as shown in fig. 7 (b), in the second embodiment, the number of the abutting structures 14 is multiple, and the multiple abutting structures 14 are uniformly distributed along the circumferential direction of the first side wall 1212, that is, the abutting structures 14 are in a dot-shaped convex structure. By designing the abutting structure 14 to be point-shaped, and uniformly distributing the plurality of abutting structures 14 along the circumferential direction of the first side wall 1212, on the premise of ensuring that the contact area between the first portion 21 of the sample 20 to be measured and the abutting structure 14 is sufficient, the stress distribution between the first portion 21 of the sample 20 to be measured and the first clamp 12 is uniform, so that the connection stability between the first portion 21 of the sample 20 to be measured and the first clamp 12 is further enhanced.

Fig. 8 is an exploded view of a transmission structure in an embodiment of the present application, as shown in fig. 4 and 8.

In the process of detecting the number of times of rotation of the sample 20 to be tested, it is considered that the axis of the sample 20 to be tested is difficult to be coincident with the axis of the rotation shaft 1512 of the torsion testing apparatus 10, so that the sample 20 to be tested generates an eccentric torque, and the sample 20 to be tested is easily damaged. In order to reduce the eccentric torque generated by the sample 20 to be tested in the rotation process to protect the sample 20 to be tested, the torsion testing apparatus 10 further includes a transmission structure 15, wherein the first connection end 111 and the second connection end 112 are distributed along the first direction X, and the first connection end 111 can rotate around the first direction X relative to the second connection end 112, the transmission structure 15 is connected between the first clamp 12 and the first connection end 111, and the transmission structure 15 can rotate around the second direction Y and/or the third direction Z relative to the first connection end 111, the second direction Y and the third direction Z are both perpendicular to the first direction X, and the second direction Y intersects with the third direction Z. That is to say, through the design of the transmission structure 15 capable of rotating around the second rotation direction and/or the third direction Z, after the first clamp 12 is connected with the first connection end 111 of the test body 11 through the transmission structure 15, the degree of freedom of connection between the first clamp 12 and the first connection end 111 of the test body 11 is increased, and the eccentric torque generated by the sample 20 to be tested in the rotation process can be effectively overcome, so that the damage to the sample 20 to be tested in the rotation process due to the eccentric torque can be avoided. The first direction X is understood to be a direction collinear with the axis of the sample 20 after the first portion 21 of the sample 20 is connected to the first clamp 12 and the second portion 22 of the sample 20 is connected to the second clamp 13. The second direction Y and the third direction Z are two intersecting directions in a plane perpendicular to the first direction X. The specific connection between the transmission structure 15 and the first fixture 12 and the specific connection between the transmission structure 15 and the first connection end 111 of the test body 11 will be described in the following.

As shown in fig. 8, considering that the transmission structure 15 has many embodiments for increasing the degree of freedom of the connection between the first clamping apparatus 12 and the first connection end 111 of the test body 11, for example, the transmission structure 15 may be a spring, and two ends of the spring are fixedly connected to the first clamping apparatus 12 and the first connection end 111 of the test body 11 respectively. In order to enhance the mechanical strength of the transmission structure 15 while ensuring the degree of freedom of the transmission structure 15, it is further designed that the transmission structure 15 includes at least one transmission member 151, the transmission member 151 includes a first connection shaft 1511, a rotation shaft 1512, and a second connection shaft 1513, the rotation shaft 1512 includes a first hinge end 15121 disposed along the second direction Y and a second hinge end 15122 disposed along the third direction Z, the first hinge end 15121 is hinged to the first connection shaft 1511 so that the rotation shaft 1512 can rotate around the second direction Y relative to the first connection shaft 1511, and the second connection shaft 1513 is hinged to the second hinge end 15122 so that the rotation shaft 1512 can rotate around the third direction Z relative to the rotation shaft 1512. In the embodiment of the present application, the number of the transmission members 151 is two, the first connection shaft 1511 of one transmission member 151 is connected to the first connection end 111 of the test body 11, the first connection shaft 1511 of the other transmission member 151 is connected to the second connection end 112 of the test body 11, and the second connection shafts 1513 of the two transmission members 151 are connected. For example, the first connection shaft 1511 of one transmission member 151 and the first connection end 111 of the test body 11 may be connected by a screw-fitting manner, the first connection shaft 1511 of the other transmission member 151 and the second connection end 112 of the test body 11 may be connected by a screw-fitting manner, and the second connection shafts 1513 of the two transmission members 151 may be integrally formed by injection molding.

Considering that when the first portion 21 of the sample 20 to be tested rotates relative to the second portion 22 of the sample 20 to be tested, in order to facilitate the tester to observe the rotation state of the first portion 21 of the sample 20 to be tested embedded in the first chamber 121 of the first clamp 12, it is further designed that at least a part of the first clamp 12 is light-permeable. For example, the first holder 12 may be partially light permeable, or the first holder 12 may be fully light permeable. When the first clamp 12 is partially transparent, the first clamp 12 can be made of a transparent material (such as transparent plastic), and the first clamp 12 can also be provided with a light-transmitting opening 123 for transmitting light. When the first clamp 12 is entirely light-permeable, the first clamp 12 is entirely made of a light-permeable material.

As shown in fig. 1-2, in order to improve the connection stability between the first fixture 12 and the first connection end 111 of the test body 11 and the connection stability between the second fixture 13 and the second connection end 112 of the test body 11, the specific connection manner between the first fixture 12 and the first connection end 111 of the test body 11 and the specific connection manner between the second fixture 13 and the second connection end 112 of the test body 11 may be, but not limited to, the following embodiments.

For example, in the first embodiment, the torsion testing apparatus 10 further includes a first connecting structure 16 connected between the first clamp 12 and the first connecting end 111, the first connecting end 111 includes two oppositely disposed first clamping plates 1111, and the two first clamping plates 1111 clamp two oppositely disposed surfaces of the first connecting structure 16. Specifically, the first connecting structure 16 includes a first connecting block 161 in a rectangular block structure, the two first clamping plates 1111 are clamped on two oppositely disposed surfaces of the first connecting block 161, the first connecting structure 16 further includes a connecting column 162 connected to one side of the first connecting block 161 close to the first clamp 12, a first connecting shaft 1511 of the driving member 151 is provided with a jack in plug-in fit with the connecting column 162, a first connecting shaft 1511 of the driving member 151 is further provided with a through hole communicated with the jack, the connecting column 162 has two oppositely disposed abutting surfaces 1621, and a screw penetrates through the through hole and abuts against the abutting surfaces 1621 of the connecting column 162, so that the first connecting structure 16 and the driving structure 15 are locked and fixed. In this design, the first fixture 12 is connected with the first connection end 111 of the test body 11 via the first connection structure 16, so that the connection stability between the first fixture 12 and the first connection end 111 of the test body 11 is enhanced.

For example, in the second embodiment, the torsion testing apparatus 10 further includes a second connecting structure 17 connected between the second clamp 13 and the second connecting end 112, the second connecting end 112 includes two oppositely disposed second clamping plates 1121, and the two second clamping plates 1121 clamp two oppositely disposed surfaces of the second connecting structure 17. Specifically, the second connecting structure 17 includes a second connecting block 171 in a rectangular block structure, two second clamping plates 1121 are clamped on two opposite surfaces of the second connecting block 171, and the second connecting block 171 can be integrally formed with the second fixture 13 by injection molding. In this design, the second fixture 13 is connected to the second connection end 112 of the test body 11 via the second connection structure 17, so that the connection stability between the second fixture 13 and the second connection end 112 of the test body 11 is enhanced.

For example, in the third embodiment, the torsion testing apparatus 10 further includes a first connecting structure 16 connected between the first clamp 12 and the first connecting end 111, the first connecting end 111 includes two oppositely disposed first clamping plates 1111, and the two first clamping plates 1111 clamp two oppositely disposed surfaces of the first connecting structure 16; and the torsion testing apparatus 10 further comprises a second connecting structure 17 connected between the second clamp 13 and the second connecting end 112, wherein the second connecting end 112 comprises two oppositely disposed second clamping plates 1121, and the two second clamping plates 1121 clamp two oppositely disposed surfaces of the second connecting structure 17. In this design, the first fixture 12 is connected with the first connection end 111 of the test body 11 via the first connection structure 16, so that the connection stability between the first fixture 12 and the first connection end 111 of the test body 11 is enhanced; the second clamp 13 is connected with the second connection end 112 of the test body 11 via the second connection structure 17, which enhances the connection stability between the second clamp 13 and the second connection end 112 of the test body 11.

As shown in fig. 1-2, considering that after the first portion 21 of the sample 20 to be tested is embedded in the first cavity 121 of the first clamp 12 and the second portion 22 of the sample 20 to be tested is embedded in the second cavity 131 of the second clamp 13, in order to make the first portion 21 of the sample 20 to be tested and the second portion 22 of the sample 20 to be tested rotate relatively, only the first portion 21 of the sample 20 to be tested may rotate, the second portion 22 of the sample 20 to be tested may be fixed or only the second portion 22 of the sample 20 to be tested may rotate, the first portion 21 of the sample 20 to be tested may be fixed or only the second portion 22 of the sample 20 to be tested may both rotate (the rotation speed is different), in order to further improve the measurement portability of the torsion testing apparatus 10, it is further designed that the testing body 11 further includes a frame 113, the first connection end 111 is fixedly connected to the frame 113, and the second connection end 112 is rotatably connected to the frame 113, that is, after the first portion 21 of the sample 20 to be tested is connected to the first connection end 111 of the test body 11 via the first clamp 12, the first portion 21 of the sample 20 to be tested is fixed relative to the frame 113 of the test body 11, and after the second portion 22 of the sample 20 to be tested is connected to the second connection end 112 of the test body 11 via the second clamp 13, the second portion 22 of the sample 20 to be tested can rotate relative to the frame 113 of the test body 11. Specifically, the second connecting end 112 may further include a rotating disc, the two second clamping plates 1121 are connected to one side of the rotating disc close to the second fixture 13, and one side of the rotating disc away from the second fixture 13 is coaxially and fixedly connected to an output shaft of a driving motor of the test body 11.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operate, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the above terms can be understood according to the specific situation by those skilled in the art.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A torsion testing apparatus, comprising:

the testing device comprises a testing body, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are arranged at intervals and can rotate relatively;

The first clamp is connected with the first connecting end and provided with a first cavity, the first cavity is used for accommodating a first part of a sample to be detected, the first clamp is provided with a first inner wall surface forming the first cavity, and the first inner wall surface comprises a first bottom wall and a first side wall annularly arranged on the periphery of the first bottom wall;

the second clamp is connected with the second connecting end and provided with a second cavity opposite to the first cavity, the second cavity is used for accommodating a second part of the sample to be detected, the second clamp is provided with a second inner wall surface forming the second cavity, and the second inner wall surface comprises a second bottom wall and a second side wall annularly arranged on the periphery of the second bottom wall.

2. The torsion testing apparatus in accordance with claim 1,

at least one of the first clamp and the first connecting end and the first clamp and the first part are detachably connected; and/or

At least one of the second clamp and the second connecting end, and the second clamp and the second part are detachably connected.

3. The torsion testing apparatus in accordance with claim 1,

The first side wall is provided with at least one first mounting hole penetrating through the first clamp, the first clamp further comprises a first fastening piece corresponding to each first mounting hole, and the first fastening pieces penetrate through the first mounting holes and are used for locking the first part of the sample to be tested in the first cavity; and/or

The second side wall is provided with at least one second mounting hole penetrating through the second clamp, the second clamp further comprises a second fastening piece corresponding to each second mounting hole, and the second fastening pieces penetrate through the second mounting holes and are used for locking the second part of the sample to be tested in the second cavity.

4. The torsion testing apparatus in accordance with claim 1,

the sample to be tested also comprises a plug-in part, the plug-in part is connected with the first part and has a first state positioned in the first part and a second state at least partially positioned on one side, away from the second part, of the first part, and when the first part rotates relative to the second part, the plug-in part can be switched between the first state and the second state;

The first side wall of the first clamp is provided with a butt joint structure, the butt joint structure divides the first chamber into a first sub-chamber close to the first connecting end and a second sub-chamber far away from the first connecting end, the second sub-chamber is communicated with the first sub-chamber, the second sub-chamber is used for accommodating the first part, the butt joint structure is used for abutting against the first part, and the first sub-chamber is used for accommodating the inserting part extending out of the first part in the second state.

5. The torsion testing apparatus in accordance with claim 4,

the abutting structure is of an annular structure which is arranged around the circumferential direction of the first side wall in a surrounding mode; or

The number of butt structures is a plurality of, and is a plurality of the butt structure is along the circumference evenly distributed of first lateral wall.

6. The torsion testing apparatus in accordance with claim 4, wherein the first connection end and the second connection end are distributed along a first direction, and the first connection end is rotatable relative to the second connection end about the first direction;

the torsion testing device further comprises a transmission structure, the transmission structure is connected between the first clamp and the first connecting end and can rotate around a second direction and/or a third direction relative to the first connecting end, the second direction and the third direction are perpendicular to the first direction, and the second direction is intersected with the third direction.

7. The torsion testing apparatus in accordance with claim 6, wherein the transmission structure includes at least one transmission member, the transmission member comprising:

a first connecting shaft;

the rotating shaft comprises a first hinged end arranged along the second direction and a second hinged end arranged along the third direction, and the first hinged end is hinged with the first connecting shaft so that the rotating shaft can rotate around the second direction relative to the first connecting shaft;

and the second connecting shaft is hinged with the second hinged end, so that the rotating shaft can rotate around the third direction relative to the rotating shaft.

8. The torsion testing apparatus in accordance with claim 1,

at least a portion of the first fixture is light permeable.

9. The torsion testing apparatus in accordance with claim 1,

the torsion testing device further comprises a first connecting structure connected between the first clamp and the first connecting end, the first connecting end comprises two oppositely arranged first clamping plates, and the two oppositely arranged surfaces of the first connecting structure are clamped by the two first clamping plates; and/or

The torsion testing device further comprises a second connecting structure connected between the second clamp and the second connecting end, the second connecting end comprises two second clamping plates which are oppositely arranged, and the two second clamping plates clamp two oppositely arranged surfaces of the second connecting structure.

10. The torsion testing apparatus in accordance with claim 1,

the testing body further comprises a rack, the first connecting end is fixedly connected with the rack, and the second connecting end is rotatably connected with the rack.