CN103063450A - Buffer static pressure test stand - Google Patents
Buffer static pressure test stand Download PDFInfo
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- CN103063450A CN103063450A CN2012105697249A CN201210569724A CN103063450A CN 103063450 A CN103063450 A CN 103063450A CN 2012105697249 A CN2012105697249 A CN 2012105697249A CN 201210569724 A CN201210569724 A CN 201210569724A CN 103063450 A CN103063450 A CN 103063450A
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Abstract
The invention relates to a buffer static pressure test stand which comprises a control system, a hydraulic system and a mechanical system. The mechanical system comprises a base seat and a working platform installed on the base seat. Standing columns are installed on the working platform. A middle cross beam is arranged in the middle part of the standing columns, and an upper cross beam is arranged in the upper part of the standing columns. A hydraulic oil cylinder connected with the hydraulic system is installed on the upper cross beam. A pressure sensor is installed on a piston of the hydraulic oil cylinder. A displacement sensor is installed between the middle cross beam and the piston. The pressure sensor and the displacement sensor are all connected with an industrial personal computer (IPC) of the control system. The buffer static pressure test stand is capable of assembling and the static pressure test to the QKX-80 elastic daub buffer and the QKX-100 elastic daub buffer. The static resistance can be detected. The QKX-80 elastic daub buffer and the QKX-100 elastic daub buffer can be controlled through the IPC, and the initial pressure is recorded. The absorption rate of the buffer is calculated, and the buffer can be judged qualified or not. The automated control is achieved, and the efficiency of maintaining tests is improved.
Description
Technical field
The present invention relates to bumper property test field, specifically, relate to a kind of impact damper static pressure test bed.
Background technology
Vehicle owing to reasons such as the startup of train, parking, speed changes, can bear mutual impact between the vehicle continually in operational process.The energy that produces during vehicular impact is cushioned the change of device compression deformation, car body distortion, Velicle motion velocity and the relative displacement of goods and absorbs.The impact of vehicle can be divided into two stages: be called the elastic impact stage before the draft gear travel full compression, impact energy mainly is cushioned device and absorbs; Impact damper full compression stroke is hereinafter referred to as the rigid shock stage, and energy at this moment mainly is consumed in the car body distortion.Under certain impact energy condition, the energy that impact damper absorbs in the full compression stroke is less, the energy that vehicle deformation absorbs the more, vehicle deformation is also larger.
Therefore, in order to reduce vehicle deformation, guarantee on the road comfortableness and avoid goods to be subject to breakage of passenger, the research impact damper can be very important by absorbed energy as much as possible in the full compression process.
Elastic cement buffer is a kind of novel buffer newly developed in recent years, uses at bullet train, passenger vehicle and lorry to succeed.The sort buffer device is taken a kind of organo-silicon compound of uncured, claims elastic cement as medium, and it has elasticity, compressibility and flowable, and its physical and chemical performance has higher stability, anti-aging, odorless, nontoxic, environmentally safe.It has, and capacity is large, resistance is little, simple in structure, stable performance, little, the lightweight advantage of volume.That uses at present is mainly QKX-80 and QKX-100 type elastic cement buffer.
After elastic cement buffer overhauls, for comfortableness and the security that guarantees vehicle operating, not only to carry out conventional impulse test and volume test to it, also will carry out static pressure test to it, measure its static impedance power, judge whether impact damper is qualified.Therefore, need a kind of test unit that can carry out to overhauling rear elastic cement buffer static pressure test of design, be used for finishing its static pressure test, the elastic cement buffer after avoiding overhauling is defective, causes the comfortableness of vehicle operating and security to can not get ensureing.
Summary of the invention
The present invention is directed to the elastic cement buffer after the maintenance, a kind of impact damper static pressure test bed is provided, can carry out static pressure test to the elastic cement buffer that overhauls rear assembling, can measure static impedance power, calculate its absorptivity.
Technical scheme of the present invention is: a kind of impact damper static pressure test bed, this testing table comprises control system, hydraulic system and mechanical system, mechanical system comprises base and the worktable that is installed on the base, column is installed on the worktable, the middle part of column is provided with middle cross beam, top is provided with entablature, and the hydraulic jack that is connected with hydraulic system is installed on the entablature; On the piston of hydraulic jack pressure transducer is installed, between middle cross beam and the piston displacement transducer is installed, pressure transducer and displacement transducer all are connected with the industrial computer of control system.
Preferably, be provided with workpiece conveying raceway for delivery of workpiece on the worktable.
Preferably, be connected with connecting link and spherical pressure dish on the piston rod of hydraulic jack.
Preferably, control system comprises switch board, is provided with industrial computer, hydraulic control component and the printer that is connected with industrial computer in the switch board, and hydraulic control component is electrically connected with Oil pump electrical machinery group and the electromagnetic change-over valve of hydraulic system.
Preferably, the Oil pump electrical machinery group that hydraulic system comprises fuel tank, be connected with fuel tank, retaining valve, high-pressure filter and with the hydraulic valve block of servo-valve, the work oil-out of servo-valve is connected with hydraulic jack by pipeline road, the Oil pump electrical machinery group enters hydraulic valve block with the hydraulic oil in the fuel tank by retaining valve, high-pressure filter, and input to hydraulic jack through servo-valve, be the hydraulic jack fuel feeding.
Preferably, the poor surplus valve of level pressure is installed in the hydraulic valve block, can be at the oil-in of servo-valve with to forming a fixing pressure reduction between the oil-out of hydraulic jack fuel feeding, the servo-valve series connection poor surplus valve of level pressure and retaining valve.
Preferably, the poor surplus valve of level pressure adopts the poor surplus valve of superposing type level pressure, and retaining valve adopts stacked unidirectional valve.
Preferably, hydraulic system is provided with air-cooled cooler, makes the temperature of hydraulic system maintain normal range.
Preferably, on the upper cover plate of fuel tank air cleaner is installed, for oiling in fuel tank, also is provided with liquid level thermometer and fluid level controller on the fuel tank.
The invention has the beneficial effects as follows: the present invention can assemble and static pressure test QKX-80 and QKX-100 type elastic cement buffer, measure its static impedance power, control by industrial computer, and record its initial pressure, calculate absorptivity of buffer, judge whether impact damper is qualified, realized robotization control, improved the efficient of checking experiment.
Description of drawings
Accompanying drawing 1 is the structural representation of specific embodiment of the invention mechanical system.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
A kind of impact damper static pressure test bed, this testing table comprises control system, hydraulic system and mechanical system, mechanical system comprises base 1 and the worktable 2 that is installed on the base 1, column 3 is installed on the worktable 2, the middle part of column 3 is provided with middle cross beam 4, top is provided with entablature 5, and the hydraulic jack 6 that is connected with hydraulic system is installed on the entablature 5; On the piston 7 of hydraulic jack 6 pressure transducer 8 is installed, between middle cross beam 4 and the piston 7 displacement transducer 9 is installed, pressure transducer 8 is connected with displacement transducer and all is connected with the industrial computer of control system.
Be provided with the workpiece conveying raceway 10 for delivery of workpiece on the worktable 2, make things convenient for the conveying of workpiece.
Hydraulic jack adopts the low resistance oil cylinder, reduces the pressure loss that causes because of the cylinder body internal friction, for reduce workpiece not in level pressurized bring side force to piston rod, be connected with connecting link and spherical pressure dish on the piston rod of above-mentioned hydraulic jack 6.
Because hydraulic jack and piston are the vitals of mechanical system, both surface of contact are through Precision Machining, and keep certain tolerance clearance and oil film, piston can be moved freely and friction is reduced to Min..
Control system comprises switch board, is provided with industrial computer, hydraulic control component and the printer that is connected with industrial computer in the switch board, and hydraulic control component is electrically connected with Oil pump electrical machinery group and the electromagnetic change-over valve of hydraulic system.
The Oil pump electrical machinery group that hydraulic system comprises fuel tank, be connected with fuel tank, retaining valve, high-pressure filter and with the hydraulic valve block of servo-valve, the work oil-out of servo-valve is connected with hydraulic jack by pipeline road, the Oil pump electrical machinery group enters hydraulic valve block with the hydraulic oil in the fuel tank by retaining valve, high-pressure filter, and input to hydraulic jack through servo-valve, be the hydraulic jack fuel feeding.Thereby control system is according to the automatic Control experiment process of openings of sizes of test initial conditions control servo-valve.
The poor surplus valve of level pressure is installed in the hydraulic valve block, can be at the oil-in of servo-valve with to forming a fixing pressure reduction between the oil-out of hydraulic jack fuel feeding, thus guarantee the normal operation of servo-valve, the servo-valve series connection poor surplus valve of level pressure and retaining valve.
The poor surplus valve of above-mentioned level pressure adopts the poor surplus valve of superposing type level pressure, is used for adjusting the pressure reduction of servo-valve oil inlet and oil return, and retaining valve adopts stacked unidirectional valve, is used for providing a back pressure, prevents oil circuit because oil return produces vibration.
Hydraulic system is provided with air-cooled cooler, and the hydraulic oil of hydraulic system cools off by air-cooled cooler, makes the hydraulic system temperature maintain normal range.
Also be provided with liquid level thermometer and fluid level controller on the fuel tank, wherein, liquid level thermometer ability electricity consumption solution point thermometer when the hydraulic system temperature is higher than design temperature, gives the alarm, and the reminding user temperature exceeds normal range; Fluid level controller can guarantee that hydraulic oil is lower than needs the liquid level alarm, reminding user annex solution force feed.On the upper cover plate of fuel tank air cleaner is installed, turns on the air cleaner loam cake when filling with oil, inject fuel tank from the air cleaner hole, the oil mass of once injecting is no less than 2/3rds of liquid level gauge, is as the criterion with the liquid level thermometer of fuel tank outside; Opening the fuel tank bottom mouth of draining the oil when draining the oil gets final product.
Claims (9)
1. impact damper static pressure test bed, it is characterized in that: this testing table comprises control system, hydraulic system and mechanical system, mechanical system comprises base and the worktable that is installed on the base, column is installed on the worktable, the middle part of column is provided with middle cross beam, top is provided with entablature, and the hydraulic jack that is connected with hydraulic system is installed on the entablature; On the piston of hydraulic jack pressure transducer is installed, between middle cross beam and the piston displacement transducer is installed, pressure transducer and displacement transducer all are connected with the industrial computer of control system.
2. impact damper static pressure test bed according to claim 1 is characterized in that: be provided with the workpiece conveying raceway for delivery of workpiece on the worktable.
3. impact damper static pressure test bed according to claim 1 is characterized in that: be connected with connecting link and spherical pressure dish on the piston rod of hydraulic jack.
4. impact damper static pressure test bed according to claim 1, it is characterized in that: control system comprises switch board, be provided with industrial computer, hydraulic control component and the printer that is connected with industrial computer in the switch board, hydraulic control component is electrically connected with Oil pump electrical machinery group and the electromagnetic change-over valve of hydraulic system.
5. according to claim 1 or the described impact damper static pressure test bed of 4 any one, it is characterized in that: the Oil pump electrical machinery group that hydraulic system comprises fuel tank, be connected with fuel tank, retaining valve, high-pressure filter and with the hydraulic valve block of servo-valve, the work oil-out of servo-valve is connected with hydraulic jack by pipeline road, the Oil pump electrical machinery group enters hydraulic valve block with the hydraulic oil in the fuel tank by retaining valve, high-pressure filter, and input to hydraulic jack through servo-valve, be the hydraulic jack fuel feeding.
6. impact damper static pressure test bed according to claim 5, it is characterized in that: the poor surplus valve of level pressure is installed in the hydraulic valve block, can be at the oil-in of servo-valve with to forming a fixing pressure reduction between the oil-out of hydraulic jack fuel feeding, the servo-valve series connection poor surplus valve of level pressure and retaining valve.
7. impact damper static pressure test bed according to claim 6 is characterized in that: the poor surplus valve of the poor surplus valve employing superposing type level pressure of level pressure, retaining valve employing stacked unidirectional valve.
8. impact damper static pressure test bed according to claim 5, it is characterized in that: hydraulic system is provided with air-cooled cooler.
9. impact damper static pressure test bed according to claim 5 is characterized in that: on the upper cover plate of fuel tank air cleaner is installed, also is provided with liquid level thermometer and fluid level controller on the fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105697249A CN103063450A (en) | 2012-12-25 | 2012-12-25 | Buffer static pressure test stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105697249A CN103063450A (en) | 2012-12-25 | 2012-12-25 | Buffer static pressure test stand |
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| CN103063450A true CN103063450A (en) | 2013-04-24 |
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| CN2012105697249A Pending CN103063450A (en) | 2012-12-25 | 2012-12-25 | Buffer static pressure test stand |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157970A (en) * | 2015-08-18 | 2015-12-16 | 佛山市百进一精密机械有限公司 | Detection device for detecting working performance of hydraulic buffer under temperature varying environment |
| CN109612673A (en) * | 2018-12-29 | 2019-04-12 | 上海核工程研究设计院有限公司 | A kind of high energy pipeline whipping simulation test bench device |
| CN109708837A (en) * | 2018-12-29 | 2019-05-03 | 上海核工程研究设计院有限公司 | A kind of high energy pipeline whipping simulation test bench system |
| CN113281026A (en) * | 2021-05-18 | 2021-08-20 | 中国空气动力研究与发展中心空天技术研究所 | Oil-gas buffer performance detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157970A (en) * | 2015-08-18 | 2015-12-16 | 佛山市百进一精密机械有限公司 | Detection device for detecting working performance of hydraulic buffer under temperature varying environment |
| CN105157970B (en) * | 2015-08-18 | 2018-02-13 | 佛山市百进一精密机械有限公司 | A kind of detection means for detecting the service behaviour under hydraulic bjuffer varying temperature environment |
| CN109612673A (en) * | 2018-12-29 | 2019-04-12 | 上海核工程研究设计院有限公司 | A kind of high energy pipeline whipping simulation test bench device |
| CN109708837A (en) * | 2018-12-29 | 2019-05-03 | 上海核工程研究设计院有限公司 | A kind of high energy pipeline whipping simulation test bench system |
| CN113281026A (en) * | 2021-05-18 | 2021-08-20 | 中国空气动力研究与发展中心空天技术研究所 | Oil-gas buffer performance detection device |
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Address after: 266031 Shandong province Qingdao City, Ruichang Road No. 231 Applicant after: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. Address before: 266000 Ruichang Road, Shandong, China, No. 231, No. Applicant before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. |
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Application publication date: 20130424 |