CN103471933A - Bending property test method and device of flexible brake tube - Google Patents
Bending property test method and device of flexible brake tube Download PDFInfo
- Publication number
- CN103471933A CN103471933A CN 201310410311 CN201310410311A CN103471933A CN 103471933 A CN103471933 A CN 103471933A CN 201310410311 CN201310410311 CN 201310410311 CN 201310410311 A CN201310410311 A CN 201310410311A CN 103471933 A CN103471933 A CN 103471933A
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- Prior art keywords
- air
- brake tube
- flexible brake
- bending
- coupling hose
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to the field of spare parts of railway vehicles, and specifically relates to a bending property test method and a bending property test device of a flexible brake tube. The bending property test method is characterized in that before the flexible brake tube is loaded for use, a bending test is firstly carried out on the flexible brake tube on the bending property test device, so that the bending curvature of the flexible brake tube is not smaller than the curvature in a using state; diameter of a middle point of the flexible brake tube is measured to be D0 before the test, and the diameter of the middle point is measured to be D1 in the bending state; when (D0-D1)/D0*100% is not greater than 30%, deformation amount of the flexible brake tube is considered to satisfy the requirements, and then the flexible brake tube can be loaded for use. Compared with the prior art, the bending property test method and the bending property test device have the beneficial effect that whether the hardness of the flexible brake tube used by a railway vehicle meets the standards or not can be intuitively judged before installation, so that the flexible brake tube which does not meet the standards is forbidden to load for use, thereby ensuring that the flexible brake tube can be normally rolled off, avoiding the occurrence of a tube stretching phenomenon from the source, improving the operability of the flexible brake tube and reducing the consumption of vehicle spare parts.
Description
Technical field
The present invention relates to rail truck spare part field, particularly a kind of air-brake coupling hose bending property test method and device.
Background technology
Because current railway vehicle braking hose bending performance does not have special test unit, therefore air-brake coupling hose does not carry out the bending property test before installing, in practice, there are the following problems: when rail truck connection person reacts air-brake coupling hose dislodging, bending is harder, set out and relatively require great effort, but only from the outward appearance of air-brake coupling hose, be difficult to again distinguish before installing, can't judge whether the soft or hard degree meets standard, winter particularly, rough power often occurs stretch the pipe phenomenon, increased so artificially the vehicle spare parts consumption, be badly in need of solving.
Summary of the invention
The purpose of this invention is to provide a kind of air-brake coupling hose bending property test method and device, whether the soft or hard degree that can before installation, judge intuitively the air-brake coupling hose that rail truck uses meets standard, forbid that entrucking used non-compliant air-brake coupling hose, thereby the assurance air-brake coupling hose can normally be seted out, and stops to stretch the generation of pipe phenomenon from source.
For achieving the above object, the present invention realizes by the following technical solutions:
Air-brake coupling hose bending property test method before the air-brake coupling hose entrucking is used, is first done bending test by air-brake coupling hose on the bending property test unit, makes its crooked curvature be not less than use state curvature, and test pre-test air-brake coupling hose intermediate point overall diameter is D
0, measuring this null ellipse minor axis overall diameter during case of bending is D
1, as satisfied (D
0-D
1)/D
0in the time of * 100%≤30%, think that the deflection of this air-brake coupling hose meets the demands, can entrucking use.
The bending property test unit adopted in described test method, comprise base plate, baffle plate, core dish, larynx hoop and handle, be provided with between two parties the core dish on base plate, the left and right sides of core dish is respectively equipped with the crooked route that baffle plate crosses air-brake coupling hose, during test, two handles each personal larynx hoop respectively are connected to the two ends of air-brake coupling hose.
Compared with prior art, the invention has the beneficial effects as follows: whether the soft or hard degree that can before installation, judge intuitively the air-brake coupling hose that rail truck uses meets standard, accomplish to forbid that entrucking used non-compliant air-brake coupling hose, thereby the assurance air-brake coupling hose can normally be seted out, stop to stretch the generation of pipe phenomenon from source, improve the operability of air-brake coupling hose, reduce the consumption of vehicle spare part.
The accompanying drawing explanation
Fig. 1 is bending property test unit example structure schematic diagram of the present invention.
In figure: 1-base plate 2-air-brake coupling hose 3-baffle plate 4-core dish 5-larynx hoop 6-handle
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, it is bending property test unit example structure schematic diagram of the present invention, comprise base plate 1, baffle plate 3, core dish 4, larynx hoop 5 and handle 6, be provided with between two parties core dish 4 on base plate 1, the left and right sides of core dish 4 is respectively equipped with the crooked route that baffle plate 3 crosses air-brake coupling hose, during test, two handles 6 each personal larynx hoop 5 respectively are connected to the two ends of air-brake coupling hose 2, firmly convenient.
The test method of air-brake coupling hose bending property of the present invention, be exactly before the air-brake coupling hose entrucking is used, first air-brake coupling hose is done to bending test on the bending property test unit, make its crooked curvature be not less than use state curvature, get one of air-brake coupling hose as sample, make a mark in the middle, test pre-test air-brake coupling hose intermediate point overall diameter is D
0, it is trapped among on the core dish of device, measuring this null ellipse minor axis overall diameter during case of bending is D
1, as satisfied (D
0-D
1)/D
0in the time of * 100%≤30%, think that the deflection of this air-brake coupling hose meets the demands, can entrucking use.The air-brake coupling hose that all entruckings are used must be done bending test, does not meet banning use of of standard-required, so just can stop to stretch from source pipe and occur.
Claims (2)
1. air-brake coupling hose bending property test method, it is characterized in that, before the air-brake coupling hose entrucking is used, first air-brake coupling hose is done to bending test on the bending property test unit, make its crooked curvature be not less than use state curvature, test pre-test air-brake coupling hose intermediate point overall diameter is D
0, measuring this null ellipse minor axis overall diameter during case of bending is D
1, as satisfied (D
0-D
1)/D
0in the time of * 100%≤30%, think that the deflection of this air-brake coupling hose meets the demands, can entrucking use.
2. the bending property test unit adopted in test method described in claim 1, it is characterized in that, comprise base plate, baffle plate, core dish, larynx hoop and handle, be provided with between two parties the core dish on base plate, the left and right sides of core dish is respectively equipped with the crooked route that baffle plate crosses air-brake coupling hose, during test, two handles each personal larynx hoop respectively are connected to the two ends of air-brake coupling hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310410311 CN103471933A (en) | 2013-09-10 | 2013-09-10 | Bending property test method and device of flexible brake tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310410311 CN103471933A (en) | 2013-09-10 | 2013-09-10 | Bending property test method and device of flexible brake tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103471933A true CN103471933A (en) | 2013-12-25 |
Family
ID=49796874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310410311 Pending CN103471933A (en) | 2013-09-10 | 2013-09-10 | Bending property test method and device of flexible brake tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103471933A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445117A (en) * | 2015-12-21 | 2016-03-30 | 南京七四二五橡塑有限责任公司 | Rubber-hose bending experiment equipment |
| CN105547860A (en) * | 2016-01-27 | 2016-05-04 | 广州特种机电设备检测研究院 | Bending test device of anti-explosion flexible connecting pipe |
| CN106133500A (en) * | 2014-03-19 | 2016-11-16 | 株式会社普利司通 | The method for predicting residual useful life of flexible pipe and the impairment grade diagnostic method of flexible pipe |
| CN107290206A (en) * | 2016-04-05 | 2017-10-24 | 中国石油化工股份有限公司 | Device for the buckling test of flexible pipe |
| CN107860563A (en) * | 2017-09-25 | 2018-03-30 | 衢州学院 | A kind of automobile brake hose flexing fatigue experimental rig |
| CN107884293A (en) * | 2017-09-25 | 2018-04-06 | 衢州学院 | A kind of automobile brake hose flexing fatigue test method |
| CN108513613A (en) * | 2017-03-28 | 2018-09-07 | 深圳市柔宇科技有限公司 | Flexible material static state crimps measurement jig and method |
| CN108801803A (en) * | 2018-08-09 | 2018-11-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Mine car bolt bending resistance detection method and mine car bolt bending resistance detection device |
| CN114166493A (en) * | 2021-11-30 | 2022-03-11 | 东风商用车有限公司 | Testing device and testing method for anti-collapse capability of corrugated hose |
-
2013
- 2013-09-10 CN CN 201310410311 patent/CN103471933A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133500A (en) * | 2014-03-19 | 2016-11-16 | 株式会社普利司通 | The method for predicting residual useful life of flexible pipe and the impairment grade diagnostic method of flexible pipe |
| CN106133500B (en) * | 2014-03-19 | 2019-09-17 | 株式会社普利司通 | The method for predicting residual useful life of hose and the impairment grade diagnostic method of hose |
| US10006843B2 (en) | 2014-03-19 | 2018-06-26 | Bridgestone Corporation | Method for predicting remaining life of hose and method for diagnosing deterioration level of hose |
| CN105445117A (en) * | 2015-12-21 | 2016-03-30 | 南京七四二五橡塑有限责任公司 | Rubber-hose bending experiment equipment |
| CN105547860A (en) * | 2016-01-27 | 2016-05-04 | 广州特种机电设备检测研究院 | Bending test device of anti-explosion flexible connecting pipe |
| CN105547860B (en) * | 2016-01-27 | 2018-04-03 | 广州特种机电设备检测研究院 | A kind of explosion-proof flexible connection pipe bend test device |
| CN107290206B (en) * | 2016-04-05 | 2019-08-30 | 中国石油化工股份有限公司 | The device of buckling test for flexible pipe |
| CN107290206A (en) * | 2016-04-05 | 2017-10-24 | 中国石油化工股份有限公司 | Device for the buckling test of flexible pipe |
| CN108513613A (en) * | 2017-03-28 | 2018-09-07 | 深圳市柔宇科技有限公司 | Flexible material static state crimps measurement jig and method |
| CN107884293A (en) * | 2017-09-25 | 2018-04-06 | 衢州学院 | A kind of automobile brake hose flexing fatigue test method |
| CN107860563A (en) * | 2017-09-25 | 2018-03-30 | 衢州学院 | A kind of automobile brake hose flexing fatigue experimental rig |
| CN108801803A (en) * | 2018-08-09 | 2018-11-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Mine car bolt bending resistance detection method and mine car bolt bending resistance detection device |
| CN114166493A (en) * | 2021-11-30 | 2022-03-11 | 东风商用车有限公司 | Testing device and testing method for anti-collapse capability of corrugated hose |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |