CN104390866B - Torsion tester for cable branch box, and test method thereof - Google Patents
Torsion tester for cable branch box, and test method thereof Download PDFInfo
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- CN104390866B CN104390866B CN201410561661.1A CN201410561661A CN104390866B CN 104390866 B CN104390866 B CN 104390866B CN 201410561661 A CN201410561661 A CN 201410561661A CN 104390866 B CN104390866 B CN 104390866B
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Abstract
The invention relates to a torsion tester for a cable branch box. The torsion tester comprises a base, a main body frame, crossbeams, sliding blocks, pulleys, heavy loads, steel cables and jacks, wherein a fixture used for fixing a tested specimen is mounted on the base, the main body frame is mounted above the base, and the crossbeams are levelly and laterally mounted on both the front side and the back side of the corresponding main body frame above the base; the crossbeams adopt a longitudinal regulating structure which can guide upward to downward, both the middle parts of the both ends of the both sides of the crossbeams are connected with a longitudinal thread screw rod which is mounted at the upper part of the main body frame to be driven and regulated, and the crossbeams move up to down along guide rails which are arranged in the main body frame; the crossbeams comprise an upper crossbeam and a lower crossbeam, the sliding blocks are horizontally mounted on the both crossbeams in a sliding manner respectively, and a graduated scale used for measuring is made on each sliding block. All the crossbeams and the pulleys disclosed by the invention adopt adjustable design, the decomposition of force is avoided, the application of the force is more accurate, the error range is within 0.5%, and data of casing deflection can be accurately measured through moving the scales.
Description
Technical field
The invention belongs to the detection field of cable hut, it is related to electronic product, especially a kind of cable hut torsion tester and its test method that a kind of detection housing tolerates torsion situation.
Background technology
At present, existing housing Verification of resistance to torsional stress equipment and test method are relatively primitive, are made up of easy column, pulley, weight load etc..During test, Shell specimens are placed on the region that can be fixed, are exerted a force to housing from both direction by counterweight, steel cable, pulley, weight load etc..But this mode suitability is not strong, process of the test wastes time and energy it is impossible to the safety of guarantee test personnel is it is impossible to the accuracy of guarantee test.
Content of the invention
It is an object of the invention in place of overcoming the deficiencies in the prior art, providing a kind of design operation simplicity, the cable hut torsion tester of safety and precise.
The present invention solves its technical problem and takes technical scheme below to realize：
A kind of cable hut torsion tester it is characterised in that：Including base, main body frame, crossbeam, slide block, pulley, weight load, wirerope and jack, fixture for fixing tested sample is installed on base, above this base, main body frame is installed, the equal horizontal cross of corresponding main body frame front and rear sides is provided with crossbeam above base；
This crossbeam adopts the longitudinally adjust structure of upper and lower guiding, it is respectively connected with, in the middle part of the two ends of crossbeam being specially both sides, the longitudinal screw leading screw being arranged on main body frame top, driven by threaded screw rod and adjust, the made guide rail along inside main body frame of crossbeam moves up and down；
Crossbeam is upper and lower two, on this two crossbeams, equal level is slidably fitted with a slide block, it is mounted on pulley in the end of crossbeam, this slide block is connected with wirerope and wirerope bypasses pulley and is connected with weight load in vertical direction, the connected wirerope of slide block on described upper and lower two crossbeams in opposite direction, the counterweight lower end of both sides all supports and is provided with jack, is formed with the graduated scale for measurement at slide block.
And, described base lower end is provided with multiple rolling bearings, by the design of drawing and pulling type, sample is sent into the testing position specified in main body frame；Installing four on base can be by the fixture of threaded adjusting.
And, test procedure is as follows：
(1) tested sample is placed on base, the fixture on adjusting base, so that sample is fixed；
(2) the height and position of the altitude mixture control crossbeam according to tested sample, makes slide block correspondence can be held in the top bezel locations of sample；
(3) adjusting slider, pulley and weight loaded components, make the line of slide block, the line of pulley and pulley, weight load be mutually perpendicular to；
(4) rise counterweight using jack, adjust wirerope and lock jack to after the length being suitable for, and determine that slide block has firmly been stuck on the shell frame of tested sample；
(5) jack is unclamped in both sides simultaneously, falls counterweight, and at this moment the torsion of 1000N is born in tested sample both sides simultaneously, and starts timing, persistent period 30s, reads and record the deflection size of tested sample in process of the test；
(6) the jack of both sides rises counterweight simultaneously, is then read out and records the frame deformation data of now tested sample, after completing measurement recovers equipment and test specimen in situ.
Advantages of the present invention and good effect are：
1st, this testing machine adopts the material welding structure such as square steel, steel pipe, the intensity of equipment has been effectively ensured, has made process of the test more safe and reliable.
2nd, the crossbeam of this testing machine can upper and lower be adjusted, if should be：Pulley is by the fixture block being arranged in elongated slot, realize the left and right regulation on crossbeam, the utilization of line slideway and slide block simultaneously, make the scope of application of equipment bigger, it is only used for less and regular shape the detection by test agent compared to former equipment, this equipment can meet the test demand of different size, different shape sample.
3rd, the operation of this testing machine more flexible and convenient, high-effective and labour-saving, testing crew is reduced to 2 people by 3 original people, and test period foreshortens to 30 minutes about by 2～3 original hours.
4th, the crossbeam of the present invention, pulley are all using design-adjustable, it is to avoid force resolution, and force is more accurate, and range of error is within 0.5%, and can accurately measure the data of housing distortion value by mobile scale.
Brief description
Fig. 1 is present configuration schematic diagram.Fig. 2 is the right view of Fig. 1.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following examples are descriptive, are not determinate it is impossible to limit protection scope of the present invention with this.
A kind of cable hut torsion tester, including base 9, main body frame 1, crossbeam 2, slide block 3, pulley 6, weight load 7, pulley 6, wirerope 5 and jack 8, fixture for fixing tested sample 4 is installed on base, above this base, main body frame is installed, the equal horizontal cross of corresponding main body frame front and rear sides is provided with crossbeam above base；
In order to be suitable to measure various sizes of cable box sample, this crossbeam adopts the longitudinally adjust structure of upper and lower guiding, it is specially on the longitudinal screw leading screw 10 being all connected be arranged on main body frame top in the middle part of the two ends of crossbeam of both sides and is driven by threaded screw rod and adjust, the made guide rail along inside main body frame of crossbeam moves up and down；
For lateral adjustments, crossbeam is upper and lower two, on this two crossbeams, equal level is slidably fitted with a slide block, it is mounted on pulley in the end of crossbeam, this slide block is connected with wirerope and wirerope bypasses pulley and is connected with weight load 7 in vertical direction, on described, the connected wirerope of slide block on lower two crossbeams in opposite direction, so that slide block slides relatively, the weight load of the present embodiment adopts 100kg counterweight, the counterweight lower end of both sides all supports and is provided with jack, slide block can be made firmly to be stuck on the frame of tested sample, reach the purpose of distortion housing, there is the graduated scale for measurement at slide block, the deflection of force back casing sample accurately can be measured.
For the ease of laying tested sample, base lower end is provided with multiple rolling bearings, by the design of drawing and pulling type, sample is sent into the testing position specified in main body frame；Installing four on base can prevent the movement of sample position in process of the test by the fixture of threaded regulation.
By above-mentioned longitudinally adjust structure and slide block level adjusting structure, Impact direction can be made to be consistent, it is to avoid force resolution, thus ensureing the accurate of stress.
During test, step is as follows：
(1) tested sample is placed on base, the fixture on adjusting base, so that sample is fixed；
(2) the height and position of the altitude mixture control crossbeam according to tested sample, makes slide block correspondence can be held in the top bezel locations of sample；
(3) adjusting slider, pulley and weight loaded components, make the line of slide block, the line of pulley and pulley, weight load be mutually perpendicular to；
(4) rise counterweight using jack, adjust wirerope and lock jack to after the length being suitable for, and determine that slide block has firmly been stuck on the shell frame of tested sample；
(5) jack is unclamped in both sides simultaneously, falls counterweight, and at this moment the torsion of 1000N is born in sample both sides to be tested simultaneously, and starts timing, persistent period 30s, reads and record the deflection size of tested sample in process of the test；
(6) the jack of both sides rises counterweight simultaneously, is then read out and records the frame deformation data of now tested sample, after completing measurement recovers equipment and test specimen in situ.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, it will be appreciated by those skilled in the art that：Without departing from the present invention and spirit and scope of the appended claims, various replacements, to change and modifications be all possible, and therefore, the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (3)
1. a kind of cable hut torsion tester it is characterised in that：Including base, main body frame, crossbeam, slide block, pulley,
Weight load, wirerope and jack, install the fixture for fixing tested sample on base, are provided with above this base
Main body frame, above base, the equal horizontal cross of corresponding main body frame front and rear sides is provided with crossbeam；
This crossbeam adopts the longitudinally adjust structure of upper and lower guiding, is specially respectively connected with the middle part of the two ends of the crossbeam of both sides and is arranged on
The longitudinal screw leading screw on main body frame top, is driven by threaded screw rod and adjusts, and the made guide rail along inside main body frame of crossbeam is carried out
Move up and down；
Crossbeam is upper and lower two, and on this two crossbeams, equal level is slidably fitted with a slide block, is mounted on pulley in the end of crossbeam,
This slide block is connected with wirerope and wirerope bypasses pulley and is connected with weight load, the cunning on described upper and lower two crossbeams in vertical direction
The connected wirerope of block in opposite direction, the counterweight lower end of both sides all supports and is provided with jack, be formed with slide block for measurement quarter
Anale settting scale.
2. cable hut torsion tester according to claim 1 it is characterised in that：Described base lower end is provided with many
Sample is sent into the testing position specified in main body frame by the design of drawing and pulling type by individual rolling bearing；Installing four on base can
By the fixture of threaded adjusting.
3. cable hut torsion tester according to claim 1 test method it is characterised in that：Test procedure is such as
Under：
(1) tested sample is placed on base, the fixture on adjusting base, so that sample is fixed；
(2) the height and position of the altitude mixture control crossbeam according to tested sample, makes slide block correspondence in the top sides that can be held in sample
Frame position；
(3) adjusting slider, pulley and weight loaded components, make the line of slide block, the line of pulley and pulley, weight load mutual
Vertically；
(4) rise counterweight using jack, adjust wirerope and lock jack to after the length being suitable for, and determine that slide block firmly blocks
On the shell frame of tested sample；
(5) jack is unclamped in both sides simultaneously, falls counterweight, and at this moment the torsion of 1000N is born in tested sample both sides simultaneously, and opens
Beginning timing, persistent period 30s, read and record the deflection size of tested sample in process of the test；
(6) the jack of both sides rises counterweight simultaneously, is then read out and records the frame deformation data of now tested sample, complete
After becoming measurement, equipment and test specimen are recovered in situ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561661.1A CN104390866B (en) | 2014-10-21 | 2014-10-21 | Torsion tester for cable branch box, and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561661.1A CN104390866B (en) | 2014-10-21 | 2014-10-21 | Torsion tester for cable branch box, and test method thereof |
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| Publication Number | Publication Date |
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| CN104390866A CN104390866A (en) | 2015-03-04 |
| CN104390866B true CN104390866B (en) | 2017-02-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107064425B (en) * | 2017-03-31 | 2023-08-08 | 西安长庆科技工程有限责任公司 | Adjustable wireless combustible gas detection system, adjusting method and application thereof |
| CN108956330A (en) * | 2018-09-13 | 2018-12-07 | 山东联工检测设备有限公司 | A kind of tooth hook torsion device |
| CN108957051A (en) * | 2018-10-11 | 2018-12-07 | 国家电网有限公司 | Portable field change of current valve tester |
| CN109540697A (en) * | 2018-12-16 | 2019-03-29 | 中国航发沈阳发动机研究所 | A kind of load bar assembly, quiet torque load test method and installation method |
| CN111551387B (en) * | 2020-05-27 | 2021-11-12 | 海信视像科技股份有限公司 | Clamp for measuring torsion resistance of complete television |
| CN113561223A (en) * | 2021-05-14 | 2021-10-29 | 配天机器人技术有限公司 | Static compliance test system and test method |
| CN113551890B (en) * | 2021-06-17 | 2023-10-17 | 西安高压电器研究院股份有限公司 | High-voltage switch equipment terminal static mechanical load test device and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60120228A (en) * | 1983-12-05 | 1985-06-27 | Hazama Gumi Ltd | Twisting-moment measuring method in twist applying test |
| CN201909742U (en) * | 2011-01-20 | 2011-07-27 | 北京科技大学 | Constant load type stress corrosion twisting tester |
| CN102401764B (en) * | 2011-11-17 | 2013-06-05 | 中国航空动力机械研究所 | Model loading device |
| CN103134729B (en) * | 2013-02-18 | 2015-01-07 | 长安大学 | Stress-strain control type direct shear apparatus |
| CN103712856B (en) * | 2013-11-18 | 2016-01-20 | 国家电网公司 | A kind of low-pressure metering box machinery static load performance detecting platform |
| CN204314158U (en) * | 2014-10-21 | 2015-05-06 | 天津电气科学研究院有限公司 | Cable hut torsion tester |
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