CN104777034A - Trilobal torsion test system and method for bundled cables and clamp special for test of bundled cables - Google Patents
Trilobal torsion test system and method for bundled cables and clamp special for test of bundled cables Download PDFInfo
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- CN104777034A CN104777034A CN201510221922.XA CN201510221922A CN104777034A CN 104777034 A CN104777034 A CN 104777034A CN 201510221922 A CN201510221922 A CN 201510221922A CN 104777034 A CN104777034 A CN 104777034A
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Abstract
The invention provides a trilobal torsion test system and method for bundled cables and a clamp special for tests of bundled cables. The clamp comprises three cable connectors and a clamping device. Each cable connector comprises a press connection pipe and a connection head which are connected into a whole; the inner diameter of the press connection pipes is matched with the outer diameter of stranded conductors of the tested cables, and threads are arranged on the connect heads. The clamping device comprises a clamping box, a connection shaft and a plurality of bolts; the clamping box comprises an installation plate, a box bottom plate and a box cover plate, the installation plate is arranged at one end of the clamping box; the cable connectors are fixed through the corresponding bolts; the box bottom plate and the box cover plate can be disassembled and fixed through the corresponding bolts; the connection shaft penetrates through the clamping box. The trilobal torsion test system and method for bundled cables and the clamp special for tests of bundled cables can well reflect the working life of the cables of a locomotive under the harsh working conditions of low temperature, repeated bending, repeated torsion and the like.
Description
Technical field
The present invention relates to a kind of bunched cables trilobal cross Torsional Experiment System, test method and test unit clamp thereof.
Background technology
Conventional flexible cable, people usually examine the resistance to torsion of its unit cable, and our locomotive cable inside line is numerous, complicated, reversing between multi-cable unavoidably appears in locomotive in the course of the work, and locomotive cable condition of work is very severe, adopt simple twisting test truly can not reflect cable resistance to twisting property and serviceable life thereof under running conditions, along with the requirement of client to locomotive cable is more and more higher, particularly external more American-European countries propose strict check requirements to locomotive cable, in order to the usability of locomotive cable product under various conditions truly can be reflected, the more test of exploitation is needed to meet user's requirement.
Summary of the invention
First object of the present invention is to provide a kind of bunched cables trilobal cross twisting test unit clamp.
The technical scheme realizing the present invention's first object is bunched cables trilobal cross twisting test unit clamp, comprises three cable connectors and a clamping device; Described cable connectors comprises the aluminium hydraulic pressed connecting pipe and connector that connect as one; The internal diameter of described aluminium hydraulic pressed connecting pipe and the stranded conductor external diameter of test cable match; Described connector arranges screw thread; Described clamping device comprises and clamps box, coupling shaft and multiple bolt; The described box that clamps comprises installing plate, box plate and lid plate; Described installing plate is arranged on and clamps box one end, is bolted cable connectors; Described box plate and lid plate are detachably fixed by bolt; Described coupling shaft is through clamping box.
Described installing plate is arranged three cable connectors holes and a connecting shaft hole.
Described coupling shaft is through connecting shaft hole and installing plate interference fit.
Described clamping device also comprises intermediate plate.
Second object of the present invention is to provide a kind of bunched cables trilobal cross Torsional Experiment System.
The technical scheme realizing the present invention's second object is bunched cables trilobal cross Torsional Experiment System, comprises fixture and reverse plate; Described fixture adopts unit clamp of the present invention, and coupling shaft is connected with reverse plate.
Bunched cables trilobal cross Torsional Experiment System also comprises temperature control equipment.
3rd object of the present invention is to provide a kind of twisting test method of bunched cables trilobal cross Torsional Experiment System.
The technical scheme realizing the present invention's the 3rd object is the twisting test method of bunched cables trilobal cross Torsional Experiment System, comprises the following steps:
Step one: installing cables web member; Peel cable under test skin off, expose stranded conductor; The aluminium hydraulic pressed connecting pipe of cable connectors is inserted in conductor, compresses; Install cable connectors to one by one three cable under test;
Step 2: the cable connectors hole crimped three cable under test being penetrated successively the installing plate of clamping device, by bolted; Intermediate plate is fastened between three cable under test and box plate inwall; Cover lid plate, with bolt through lid plate, intermediate plate and box plate, fastening;
Step 3: three cable under test binding straps are bundled, coupling shaft is connected with reverse plate; Vertical hanging cable under test;
Step 4: start reverse plate, cable under test is reversed; Check that there is flawless on cable under test surface; Carrying out immersion alternating voltage 12.6kv/5min withstand voltage test, do not puncture, enter step 5, puncture, showing not by reversing test;
Step 5: the cable by immersion withstand voltage test is arranged on reverse plate again, reverse, check that cable under test surface is with or without appearance cracking or expansion, again carry out immersion alternating voltage 12.6kv/5min withstand voltage test, if can not puncture, and cable shield wire broken rate is less than 70%, and conductor wire broken rate is less than 5%, then show that cable is by twisting test, otherwise for not pass through.
The torsion detailed process of described step 4 is: first reverse 770 ° clockwise, then original state is replied after reversing equal angular counterclockwise, another mistake hour hands reverse 770 °, then reverse equal angular clockwise and be returned to original state, this is a circulation, circulate 4500 times, the rotating speed of reverse plate is 10 °s/sec.
The torsion detailed process of described step 5 is: first reverse 891 ° clockwise, then original state is replied after reversing equal angular counterclockwise, another mistake hour hands reverse 891 °, then reverse equal angular clockwise and be returned to original state, this is a circulation, circulate 65 times, the rotating speed of reverse plate is 10 °s/sec.
In test process, temperature range is-60 DEG C ~ 60 DEG C, and the status requirement temperature difference residing for cable under test is no more than 3 DEG C.
The present invention has positive effect: (1) can well reflect that locomotive cable is under the harsh condition of work such as low temperature, alternating bending, reversed torsion, the mission life of cable.(2) improve test stability.(3) to locomotive cable particularly export locomotive cable provide reliable test figure.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation after unit clamp of the present invention and three cables assemble.
Fig. 2 is the schematic diagram that Fig. 1 removes lid plate.
Fig. 3 is the structural representation of cable connectors of the present invention.
Fig. 4 is the side structure schematic diagram clamping box of the present invention.
Fig. 5 is the structural representation of installing plate of the present invention.
Attached number in the figure is:
Cable connectors 1, aluminium hydraulic pressed connecting pipe 11, connector 12, screw thread 12-1, clamping device 2, clamp box 21, installing plate 21-1, cable connectors hole 21-1-1, connecting shaft hole 21-1-2, box plate 21-2, lid plate 21-3, coupling shaft 22, bolt 23, cable under test 3, stranded conductor 31.
Embodiment
(embodiment 1)
See Fig. 1 to Fig. 5, the bunched cables trilobal cross twisting test unit clamp of the present embodiment, comprises three cable connectors 1 and a clamping device 2; Cable connectors 1 comprises the aluminium hydraulic pressed connecting pipe 11 and connector 12 that connect as one; The internal diameter of aluminium hydraulic pressed connecting pipe 11 and the stranded conductor external diameter of test cable match; Connector 12 is arranged screw thread 12-1; Clamping device 2 comprises and clamps box 21, coupling shaft 22 and multiple bolt 23; Clamp box 21 and comprise installing plate 21-1, box plate 21-2 and lid plate 21-3; Installing plate 21-1 is arranged on and clamps box 21 one end, by bolt 23 attached cable web member 1; Box plate 21-2 and lid plate 21-3 is detachably fixed by bolt 23; Coupling shaft 22 is through clamping box 21.Installing plate 21-1 is arranged three cable connectors hole 21-1-1 and connecting shaft hole 21-1-2.Coupling shaft 22 is through connecting shaft hole 21-1-2 and installing plate 21-1 interference fit.Clamping device 2 also comprises intermediate plate.
The twisting test method step of bunched cables trilobal cross Torsional Experiment System is:
Step one: installing cables web member 1; Peel cable under test 3 off outer, expose stranded conductor 31; The aluminium hydraulic pressed connecting pipe 11 of cable connectors 1 is inserted in conductor 31, compresses; Install cable connectors to one by one three cable under test 3;
Step 2: the cable connectors hole 21-1-1 crimped three cable under test 3 being penetrated successively the installing plate 21-1 of clamping device 2, fastening with bolt 23; Intermediate plate is fastened between three cable under test 3 and box plate 21-2 inwall; Cover lid plate 23, with bolt 23 through lid plate 23, intermediate plate and box plate 21-2, fastening;
Step 3: three cable under test 3 are bundled with binding strap, coupling shaft 22 is connected with reverse plate; Vertical hanging cable under test 3;
Step 4: start reverse plate, cable under test 3 is reversed; First reverse 770 ° clockwise, reply original state after then reversing equal angular counterclockwise, another mistake hour hands reverse 770 °, and then reverse equal angular clockwise and be returned to original state, this is a circulation, circulates 4500 times, and the rotating speed of reverse plate is 10 °s/sec.Check that there is flawless on cable under test 3 surface; Carrying out immersion alternating voltage 12.6kv/5min withstand voltage test, do not puncture, enter step 5, puncture, showing not by reversing test;
Step 5: the cable by immersion withstand voltage test is arranged on reverse plate again, reverse, first reverse 891 ° clockwise, then original state is replied after reversing equal angular counterclockwise, another mistake hour hands reverse 891 °, and then reverse equal angular clockwise and be returned to original state, this is a circulation, circulate 65 times, the rotating speed of reverse plate is 10 °s/sec.Check that cable under test 3 surface is with or without appearance cracking or expansion, carries out immersion alternating voltage 12.6kv/5min withstand voltage test, again if can not puncture, and cable shield wire broken rate is less than 70%, conductor wire broken rate is less than 5%, then show that cable is by twisting test, otherwise for not pass through.
In test process, temperature range is-60 DEG C ~ 60 DEG C, and the status requirement temperature difference residing for cable under test 3 is no more than 3 DEG C.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. bunched cables trilobal cross twisting test unit clamp, is characterized in that: comprise three cable connectors (1) and a clamping device (2); Described cable connectors (1) comprises the aluminium hydraulic pressed connecting pipe (11) and connector (12) that connect as one; The internal diameter of described aluminium hydraulic pressed connecting pipe (11) and the stranded conductor external diameter of test cable match; Described connector (12) is arranged screw thread (12-1); Described clamping device (2) comprises and clamps box (21), coupling shaft (22) and multiple bolt (23); The described box (21) that clamps comprises installing plate (21-1), box plate (21-2) and lid plate (21-3); Described installing plate (21-1) is arranged on and clamps box (21) one end, by bolt (23) attached cable web member (1); Described box plate (21-2) and lid plate (21-3) are detachably fixed by bolt (23); Described coupling shaft (22) is through clamping box (21).
2. bunched cables trilobal cross twisting test unit clamp according to claim 1, is characterized in that: described installing plate (21-1) is arranged three cable connectors holes (21-1-1) and a connecting shaft hole (21-1-2).
3. bunched cables trilobal cross twisting test unit clamp according to claim 2, is characterized in that: described coupling shaft (22) is through connecting shaft hole (21-1-2) and installing plate (21-1) interference fit.
4. bunched cables trilobal cross twisting test unit clamp according to claim 3, is characterized in that: described clamping device (2) also comprises intermediate plate.
5. bunched cables trilobal cross Torsional Experiment System, is characterized in that: comprise fixture and reverse plate; Described fixture adopts unit clamp as claimed in claim 4, and coupling shaft (22) is connected with reverse plate.
6. bunched cables trilobal cross Torsional Experiment System according to claim 5, is characterized in that: also comprise temperature control equipment.
7. the twisting test method of bunched cables trilobal cross Torsional Experiment System, is characterized in that comprising the following steps:
Step one: installing cables web member (1); Peel cable under test (3) off outer, expose stranded conductor (31); The aluminium hydraulic pressed connecting pipe (11) of cable connectors (1) is inserted in conductor (31), compresses; Install cable connectors to one by one three cable under test (3);
Step 2: the cable connectors hole (21-1-1) crimped three cable under test (3) being penetrated successively the installing plate (21-1) of clamping device (2), fastening with bolt (23); Intermediate plate is fastened between three cable under test (3) and box plate (21-2) inwall; Cover lid plate (23), with bolt (23) through lid plate (23), intermediate plate and box plate (21-2), fastening;
Step 3: three cable under test (3) are bundled with binding strap, coupling shaft (22) is connected with reverse plate; Vertical hanging cable under test (3);
Step 4: start reverse plate, cable under test (3) is reversed; Check that there is flawless on cable under test (3) surface; Carrying out immersion alternating voltage 12.6kv/5min withstand voltage test, do not puncture, enter step 5, puncture, showing not by reversing test;
Step 5: the cable by immersion withstand voltage test is arranged on reverse plate again, reverse, check that cable under test (3) surface is with or without appearance cracking or expansion, again carry out immersion alternating voltage 12.6kv/5min withstand voltage test, if can not puncture, and cable shield wire broken rate is less than 70%, and conductor wire broken rate is less than 5%, then show that cable is by twisting test, otherwise for not pass through.
8. the twisting test method of bunched cables trilobal cross Torsional Experiment System according to claim 7, it is characterized in that: the torsion detailed process of described step 4 is: first reverse 770 ° clockwise, then original state is replied after reversing equal angular counterclockwise, another mistake hour hands reverse 770 °, then reverse equal angular clockwise and be returned to original state, this is a circulation, circulates 4500 times, and the rotating speed of reverse plate is 10 °s/sec.
9. the twisting test method of bunched cables trilobal cross Torsional Experiment System according to claim 7, it is characterized in that: the torsion detailed process of described step 5 is: first reverse 891 ° clockwise, then original state is replied after reversing equal angular counterclockwise, another mistake hour hands reverse 891 °, then reverse equal angular clockwise and be returned to original state, this is a circulation, circulates 65 times, and the rotating speed of reverse plate is 10 °s/sec.
10. according to the twisting test method of the bunched cables trilobal cross Torsional Experiment System one of claim 7 to 9 Suo Shu, it is characterized in that: in test process, temperature range is-60 DEG C ~ 60 DEG C, the status requirement temperature difference residing for cable under test (3) is no more than 3 DEG C.
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| CN201510221922.XA CN104777034B (en) | 2015-05-04 | 2015-05-04 | Bunched cables trilobal cross Torsional Experiment System, test method and its experiment special fixture |
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| CN201510221922.XA CN104777034B (en) | 2015-05-04 | 2015-05-04 | Bunched cables trilobal cross Torsional Experiment System, test method and its experiment special fixture |
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| CN104777034B CN104777034B (en) | 2017-06-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106908337A (en) * | 2017-03-20 | 2017-06-30 | 苏州拓博机械设备有限公司 | A kind of wire twist testing machine |
| CN107727518A (en) * | 2017-08-23 | 2018-02-23 | 安徽凌宇电缆科技有限公司 | A kind of cable performance test device and apply its cable performance method of testing |
| CN108931443A (en) * | 2018-05-30 | 2018-12-04 | 莱茵检测认证服务（中国）有限公司 | The warp resistance detection method of 6kV to 35kV wind generator system flexible cable |
| CN112461680A (en) * | 2020-11-17 | 2021-03-09 | 安徽电缆股份有限公司 | Reciprocating torsion test equipment for cable |
Families Citing this family (1)
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| RU2753176C1 (en) * | 2019-04-19 | 2021-08-12 | Государственное Предприятие "Завод "Электротяжмаш" | Method and apparatus for testing output cables of traction electric engines for complex effect of mechanical and climatic loads |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106908337A (en) * | 2017-03-20 | 2017-06-30 | 苏州拓博机械设备有限公司 | A kind of wire twist testing machine |
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| CN107727518B (en) * | 2017-08-23 | 2020-03-20 | 安徽凌宇电缆科技有限公司 | Cable performance testing device and cable performance testing method applying same |
| CN108931443A (en) * | 2018-05-30 | 2018-12-04 | 莱茵检测认证服务（中国）有限公司 | The warp resistance detection method of 6kV to 35kV wind generator system flexible cable |
| CN112461680A (en) * | 2020-11-17 | 2021-03-09 | 安徽电缆股份有限公司 | Reciprocating torsion test equipment for cable |
| CN112461680B (en) * | 2020-11-17 | 2024-02-20 | 安徽电缆股份有限公司 | Reciprocating torsion test equipment for cable |
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| CN104777034B (en) | 2017-06-27 |
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Effective date of registration: 20200519 Address after: 214257 No.5, Fanxing Road, Gaocheng Town, Yixing City, Wuxi City, Jiangsu Province Patentee after: JIANGSU HUADONG SMART CABLE DETECTION Co.,Ltd. Address before: No. 8, Gaocheng Town, Yixing city of Jiangsu Province, Wuxi City, the Far East Avenue 214257 Co-patentee before: NEW FAR EAST CABLE Co.,Ltd. Patentee before: FAR EAST CABLE Co.,Ltd. Co-patentee before: FAR EAST COMPOSITE TECHNOLOGY Co.,Ltd. |