CN108956267B - Insulating pull rod tensile test is with experimental joint and experimental frock - Google Patents
Insulating pull rod tensile test is with experimental joint and experimental frock Download PDFInfo
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- CN108956267B CN108956267B CN201710390726.4A CN201710390726A CN108956267B CN 108956267 B CN108956267 B CN 108956267B CN 201710390726 A CN201710390726 A CN 201710390726A CN 108956267 B CN108956267 B CN 108956267B
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- pull rod
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- 238000009864 tensile test Methods 0.000 title abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 87
- 230000007704 transition Effects 0.000 claims description 30
- 239000000463 material Substances 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a test joint and a test tool for an insulating pull rod tensile test, wherein the test joint comprises a test machine connecting part and one or more than two insulating pull rod connecting parts which can be independently matched with the test machine connecting part according to requirements for use, the test machine connecting part is connected with the insulating pull rod connecting part through a detachable connecting structure, the insulating pull rod connecting part is provided with a joint connecting structure connected with the corresponding insulating pull rod joint, when the insulating pull rod connecting part is divided into one, only the insulating pull rod connecting part can be replaced when the insulating pull rod test is carried out aiming at insulating pull rods with different sizes, the test machine connecting part is not required to be replaced, the material is saved, when the insulating pull rod connecting part is divided into two, the proper insulating pull rod connecting part can be selected to be connected with the test machine connecting part, the device can be suitable for different types of insulating pull rods to perform tensile tests, and greatly improves the test efficiency.
Description
Technical Field
The invention relates to the field of tensile test equipment, in particular to a test joint for an insulating pull rod tensile test and a test tool using the test joint.
Background
The insulating pull rod is an important element in the switch device, is used for implementing reliable disconnection of the switch device and plays a role in insulation and operation disconnection. Since the acting force of the insulated pull rod in work is instantaneous sudden load, the mechanical property, especially the tensile property, of the insulated pull rod is important for the reliability of the high-voltage electrical appliance. Routine tensile test and breaking tensile test items in the mechanical operation test of the insulating pull rod are necessary items for testing the tensile strength of the insulating pull rod. The structure of insulating pull rod is as shown in figure 1, including the body of rod 1 with locate the insulating pull rod first joint 2 and the insulating pull rod second joint 3 at body of rod 1 both ends, the tensile test of insulating pull rod is generally gone on horizontal tensile machine, need the corresponding frock of adapted so that connect the insulating pull rod both ends, current experimental frock generally includes first experimental joint and second experimental joint, the one end of first experimental joint is used for being connected with a pull head of tensile machine, the other end is used for being connected with insulating pull rod first joint 2, the one end of second experimental joint is used for being connected with another pull head of tensile machine, the other end and the insulating pull rod second joint 3 of second experimental joint are connected. The end face of the first insulating pull rod joint 2 is provided with pull rod threaded holes 21 uniformly distributed along the circumferential direction, and the end part of the second insulating pull rod joint 3 is provided with a threaded connection section 31. At present, the test tool is generally a set of test tool corresponding to the insulating pull rod of one specification, and can not meet the tensile test of the insulating pull rod of different specifications.
Disclosure of Invention
The invention aims to provide a test joint for an insulating pull rod tensile test, which aims to solve the problems of long processing time and material waste of the test joint caused by the fact that a first test joint and a second test joint need to be integrally replaced when the insulating pull rods with different sizes are tested in the prior art; meanwhile, the invention also aims to provide a test tool using the test joint.
In order to achieve the purpose, the technical scheme of the test joint for the tensile test of the insulating pull rod is as follows: the utility model provides an insulating pull rod is test joint for tensile test, includes the testing machine coupling part that is used for being connected with the testing machine, still include one or more than two as required can alone with the insulating pull rod coupling part that testing machine coupling part cooperation was used, testing machine coupling part and insulating pull rod coupling part pass through releasable connection structure and are connected, have on the insulating pull rod coupling part with the insulating pull rod articulate's that corresponds articulate connection structure.
The detachable connection structure realizes detachable connection through connection threads.
The detachable connection structure comprises a connection shaft section arranged on the connection part of the testing machine and a connection hole section arranged on the connection part of the insulating pull rod, and the connection thread comprises an external thread arranged on the connection shaft section, an internal thread arranged on the connection hole section and an external thread penetrating through a bolt in the first connection hole and the second connection hole.
The connecting part of the testing machine comprises a stepped shaft connecting rod integrally arranged with the connecting shaft section.
The detachable connection structure comprises a first connection hole arranged on the connection part of the testing machine and a second connection hole arranged on the connection part of the insulating pull rod, the first connection hole is a unthreaded hole, and the connection thread comprises an internal thread arranged in the second connection hole.
The testing machine connecting part comprises a connecting flange and a stepped shaft connecting rod integrally arranged with the connecting flange, and the first connecting hole is formed in the connecting flange.
The technical scheme of the test tool is as follows: the utility model provides an experimental frock, includes first experimental joint and the experimental joint of second, each experimental joint all including be used for with the testing machine connected part that the testing machine is connected, still include one or more than two as required can alone with the insulating pull rod connected part that the testing machine connected part cooperation was used, testing machine connected part and insulating pull rod connected part pass through releasable connection structure and are connected, have on the insulating pull rod connected part with the insulating pull rod articulate connection structure that corresponds.
The detachable connection structure realizes detachable connection through connection threads.
The detachable connection structure comprises a connection shaft section arranged on the connection part of the testing machine and a connection hole section arranged on the connection part of the insulating pull rod, and the connection thread comprises an external thread arranged on the connection shaft section, an internal thread arranged on the connection hole section and an external thread penetrating through a bolt in the first connection hole and the second connection hole.
The connecting part of the testing machine comprises a stepped shaft connecting rod integrally arranged with the connecting shaft section.
The detachable connection structure comprises a first connection hole arranged on the connection part of the testing machine and a second connection hole arranged on the connection part of the insulating pull rod, the first connection hole is a unthreaded hole, and the connection thread comprises an internal thread arranged in the second connection hole.
The testing machine connecting part comprises a connecting flange and a stepped shaft connecting rod integrally arranged with the connecting flange, and the first connecting hole is formed in the connecting flange.
The invention has the beneficial effects that: the insulating pull rod connecting part passes through releasable connection structure with the testing machine connecting part and is connected, when insulating pull rod connecting part is one, this moment when experimental to the insulating pull rod of unidimensional, can only change insulating pull rod connecting part can, and need not change the testing machine connecting part, the process time that other experimental joints have been reduced, the material has been saved simultaneously, production cost is reduced, when insulating pull rod connecting part has two, to the insulating pull rod of unidimensional, can choose for use suitable an insulating pull rod connecting part to be connected with the testing machine connecting part, can be applicable to the insulating pull rod of different grade type and carry out tensile test, the efficiency of the test is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an insulating pull rod in the prior art;
FIG. 2 is a schematic view of an installation structure of a test fixture and an insulating pull rod;
FIG. 3 is a schematic view of the connection between the test fixture and the testing machine;
FIG. 4 is a schematic structural view of a first trial adapter;
FIG. 5 is a schematic structural diagram of a first transition block;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a schematic structural diagram of a first connecting rod;
FIG. 8 is a right side view of FIG. 7;
FIG. 9 is a schematic structural view of a second trial adapter;
FIG. 10 is a schematic structural diagram of a second transition block;
FIG. 11 is a left side view of FIG. 10;
FIG. 12 is a schematic structural view of a second connecting rod;
fig. 13 is a left side view of fig. 12.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. The specific embodiment of the test tool disclosed by the invention comprises a first test joint 4 and a second test joint 5 which are respectively connected with a slider 10 corresponding to a testing machine, as shown in fig. 2-13, wherein the first test joint 4 comprises a first transition block 7 and a first connecting rod 6 which are separately arranged, and the first transition block 7 and the first connecting rod 6 are detachably connected through a first detachable connection structure, as shown in fig. 4. The second trial joint 5 is shown in fig. 9 and comprises a second transition block 9 and a second connecting rod 8 which are arranged in a split manner, and the second transition block 9 and the second connecting rod 8 are detachably connected through a second detachable connection structure. The transition block forms an insulating pull rod connecting part, and the connecting rod forms a testing machine connecting part.
The first connecting rod 6, as shown in fig. 7 and 8, includes a connecting shaft section 61 and a first step shaft connecting rod integrally provided with the connecting shaft section 61, and the first step shaft connecting rod includes a first connector 62 for connecting with one slider 10 of the testing machine and an intermediate shaft provided between the first connector 62 and the connecting shaft section 61. As shown in fig. 5 and 6, the first transition block 7 includes a disc body 71, 6 first transition block threaded holes 72 are uniformly circumferentially and alternately disposed on the disc body 71, and are used for corresponding to the tie rod threaded holes 21 of the first insulation tie rod joint 2, and a connecting hole section 73 is disposed on the disc body 71. The first connecting rod 6 and the first transition block 7 are detachably connected through a first connecting thread, and the first connecting thread includes an external thread arranged on the connecting shaft section 61 and an internal thread arranged on the connecting hole section 73. The connecting shaft section 61 and the connecting bore section 73 form a first releasable connecting structure.
As shown in fig. 12 and 13, the second connecting rod 8 includes a connecting flange 82 and a second step shaft connecting rod integrally disposed with the connecting flange 82, and the second step shaft connecting rod includes a second connecting head 81 for connecting with another slider of the testing machine and a transition shaft located between the second connecting head 81 and the connecting flange 82. Second transition piece 9 is as shown in fig. 10, 11, including annular body 91, second releasable connection structure is including setting up evenly being provided with 6 first connecting holes 83 along circumference on flange 82 and setting up and being provided with 6 second connecting holes 92 along circumference even interval on annular body 91, second connecting hole 92 is the screw hole, first connecting hole 83 is the unthreaded hole, through second connecting thread connection between second connecting rod 8 and the second transition piece 9, second connecting thread includes the internal thread of second connecting hole 92 and wears the external screw thread of the bolt of dress in first connecting hole 83 and second connecting hole 92. The hole wall of the inner hole of the annular body 91 is provided with an internal thread, and the inner hole of the annular body 91 is used for being in threaded fit connection with the threaded connection section 31 of the second joint 3 of the insulating pull rod.
When the insulating pull rod of different specifications is subjected to tensile test, only the first transition block and the second transition block need to be replaced, the first test joint and the second test joint do not need to be integrally replaced, the processing time of the test joints is reduced, materials are saved, and the cost is reduced.
In the above embodiment of the present invention, the first and second transition blocks form an insulating pull rod connection portion for connecting with a corresponding insulating pull rod joint, the first and second connection rods form a testing machine connection portion for connecting with a corresponding pull head of a testing machine, in other embodiments, the testing machine connection portion and the insulating pull rod connection portion may be detachably connected without using a connection thread, at this time, the testing machine connection portion may be provided with a first insertion end, the insulating pull rod connection portion may be provided with a second insertion end, and the first insertion end and the second insertion end are detachably connected through a pin shaft after being inserted.
In other embodiments of the invention, the number of the first transition blocks and the second transition blocks can be more than two, and at this time, for the insulation pull rods with different sizes, one of the first transition blocks and one of the second transition blocks can be selected to be connected with the corresponding connecting rod, so that the invention can be suitable for the tensile test of the insulation pull rods with different types, and the test efficiency is greatly improved; the first connecting rod can also be replaced by a connecting block, and the connecting block and the first transition block can be connected through a bolt; the first connecting rod can also be replaced by a connecting pipe; the second connecting rod can also be in threaded connection with the second transition block, the inner hole of the annular body can be lengthened and provided with a threaded structure, the end part of the second connecting rod is not provided with a connecting flange, but is provided with an external thread which is in threaded connection with the annular body, and the second connecting rod can also be replaced by a connecting pipe under the condition; the first connecting hole and the second connecting hole can be threaded holes or unthreaded holes.
The first embodiment of the test joint has the same structure as the first test joint in each embodiment of the test tool, and details are not repeated here. The second test joint in the second embodiment of the test tool has the same structure as the second test joint in each embodiment of the test tool, and is not described herein again.
Claims (3)
1. The utility model provides an experimental frock, includes first experimental joint and the experimental joint of second, its characterized in that: each test joint comprises a test machine connecting part used for being connected with a test machine and one or more than two insulating pull rod connecting parts which can be independently matched with the test machine connecting part for use according to requirements, and the test machine connecting part is connected with the insulating pull rod connecting part through a detachable connecting structure;
the first test joint comprises a first transition block and a first connecting rod which are arranged in a split mode, and the first transition block and the first connecting rod are detachably connected through a first detachable connecting structure; the second test joint comprises a second transition block and a second connecting rod which are arranged in a split mode, and the second transition block and the second connecting rod are detachably connected through a second detachable connecting structure;
the transition block forms an insulating pull rod connecting part, and the connecting rod forms a testing machine connecting part;
the insulating pull rod connecting part is provided with a joint connecting structure connected with the corresponding insulating pull rod joint;
the first transition block comprises a disc body, and six first transition block threaded holes which are used for being arranged corresponding to the pull rod threaded holes of the first joint of the insulating pull rod are uniformly arranged on the disc body at intervals in the circumferential direction;
the second transition block comprises an annular body, internal threads are arranged on the hole wall of an inner hole of the annular body, the inner hole of the annular body is used for being in threaded fit connection with a threaded connection section of a second joint of the insulating pull rod, and six second connection holes are uniformly arranged on the annular body at intervals along the circumferential direction of the annular body; the first detachable connection structure comprises a connection shaft section arranged on the connection part of the testing machine and a connection hole section arranged on the connection part of the insulating pull rod, and the connection thread comprises an external thread arranged on the connection shaft section and an internal thread arranged on the connection hole section; the second detachable connection structure comprises a first connection hole and a second connection hole, the first connection hole is a unthreaded hole, and the connection thread comprises an internal thread and an external thread, the internal thread is arranged in the second connection hole, and the external thread penetrates through a bolt in the first connection hole and the second connection hole.
2. The test tool of claim 1, wherein: the testing machine connecting part of the first test joint comprises a stepped shaft connecting rod integrally arranged with a connecting shaft section.
3. The test tool of claim 1, wherein: the testing machine connecting part of the second test joint comprises a connecting flange and a stepped shaft connecting rod integrally arranged with the connecting flange, and the first connecting hole is formed in the connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710390726.4A CN108956267B (en) | 2017-05-27 | 2017-05-27 | Insulating pull rod tensile test is with experimental joint and experimental frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710390726.4A CN108956267B (en) | 2017-05-27 | 2017-05-27 | Insulating pull rod tensile test is with experimental joint and experimental frock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108956267A CN108956267A (en) | 2018-12-07 |
| CN108956267B true CN108956267B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710390726.4A Active CN108956267B (en) | 2017-05-27 | 2017-05-27 | Insulating pull rod tensile test is with experimental joint and experimental frock |
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| Country | Link |
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| CN (1) | CN108956267B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009190B (en) * | 2019-12-19 | 2024-04-05 | 河南平芝高压开关有限公司 | Single-branch insulation pull rod test tool and test equipment for GIS |
| CN111139795B (en) * | 2020-01-10 | 2021-02-19 | 广东江海机电工程有限公司 | Adjusting device and adjusting method for stretching of prestressed pull rod |
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| CN101706391A (en) * | 2009-12-11 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Anti-adhesive shoulder fixture for improving efficiency of endurance test |
| CN201732028U (en) * | 2010-07-30 | 2011-02-02 | 中国科学院金属研究所 | Sample holder for high temperature and high pressure water corrosion fatigue test |
| CN203250703U (en) * | 2013-04-25 | 2013-10-23 | 国家电网公司 | Insulated pull rod assembly and insulated pull rod joint thereof |
| CN203380460U (en) * | 2013-06-24 | 2014-01-08 | 北京星航机电装备有限公司 | Electrode clamping tool |
| CN203965247U (en) * | 2014-07-23 | 2014-11-26 | 贵州航天精工制造有限公司 | A kind of novel fastener tensile test apparatus |
| CN106449267A (en) * | 2016-11-15 | 2017-02-22 | 平高集团威海高压电器有限公司 | Plug, insulating pull rod component, protection method of insulating pull rod component and arc extinguish chamber |
-
2017
- 2017-05-27 CN CN201710390726.4A patent/CN108956267B/en active Active
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|---|---|---|---|---|
| GB1284072A (en) * | 1968-08-07 | 1972-08-02 | Nat Res Dev | Testing of concrete |
| CN101706391A (en) * | 2009-12-11 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Anti-adhesive shoulder fixture for improving efficiency of endurance test |
| CN201732028U (en) * | 2010-07-30 | 2011-02-02 | 中国科学院金属研究所 | Sample holder for high temperature and high pressure water corrosion fatigue test |
| CN203250703U (en) * | 2013-04-25 | 2013-10-23 | 国家电网公司 | Insulated pull rod assembly and insulated pull rod joint thereof |
| CN203380460U (en) * | 2013-06-24 | 2014-01-08 | 北京星航机电装备有限公司 | Electrode clamping tool |
| CN203965247U (en) * | 2014-07-23 | 2014-11-26 | 贵州航天精工制造有限公司 | A kind of novel fastener tensile test apparatus |
| CN106449267A (en) * | 2016-11-15 | 2017-02-22 | 平高集团威海高压电器有限公司 | Plug, insulating pull rod component, protection method of insulating pull rod component and arc extinguish chamber |
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| CN108956267A (en) | 2018-12-07 |
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