CN104236920B - A kind of assay device detecting dynamic car door reliability - Google Patents
A kind of assay device detecting dynamic car door reliability Download PDFInfo
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- CN104236920B CN104236920B CN201410454923.4A CN201410454923A CN104236920B CN 104236920 B CN104236920 B CN 104236920B CN 201410454923 A CN201410454923 A CN 201410454923A CN 104236920 B CN104236920 B CN 104236920B
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Abstract
The present invention relates to a kind of assay device detecting dynamic car door reliability, including machinery, hydraulic pressure two parts. Wherein mechanical part includes testing stand, support etc. Described testing stand coupling part adopts many screws demountable structure, and support link position is adjustable, is applicable to the car door of different model size. Hydraulic part includes tail-gate detection part and roof door detection part, and its main actions is " switch lock " and " switch gate ". Described tail-gate and roof door detection part adopt two linear type hydraulic cylinders to realize the opening and closing of lock and car door. After repeatedly tail-gate (or roof door) is carried out switch gate test, closing door state, air bag is utilized to carry out pressurize detection. The hydraulic system of present invention design can be automatically performed various sizes, vertically or horizontally place the detection such as the stress of car door, air-tightness, life-span, and then examines properties and draw conclusion (of pressure testing), provides reference frame to car door Curve guide impeller.
Description
Technical field
The present invention relates to experiment detection device, particularly a kind of assay device detecting dynamic car door reliability.
Background technology
The car door of armored vehicle (the special engineered vehicle of following general designation) is the crucial pass taking advantage of load person and equipment vehicles passing in and out, vehicle uses environment different, take advantage of load person's unlatching ability that is healthy and that have time injured different, for meeting different man-machine environment requirements, ensureing under any battlefield surroundings and personnel status, car door can be opened smoothly and properties still has good stability after repeated use. For realizing car door performance and automatically detecting, the purpose of tired examination, it is necessary to a kind of general dynamic car door reliability test bench, it is achieved the function that the air-tightness of special engineered Vehicular door, switch gate power, switch lock power and service life etc. are detected, record. But, the major part of vehicle detection test both at home and abroad is for automobile at present, the special engineered vehicle of shorter mention, and vehicle detection mostly is complete vehicle test, specific aim is not strong, is difficult to extract the relevant design parameter of car door, cost consumption is big, input manpower is more, and the test period is long, and the repeatability of test is relatively poor.
Chinese patent CN201220316630.6 provides a kind of car door reliability test, the reciprocating motion that can utilize cylinder drives link opening car door, but air cylinder driven power controls detection inconvenience, and set of device is only applicable to the car door of a kind of gauge size, cannot recycling, the suitability is poor.
Summary of the invention
The technical problem to be solved is the assay device of the car door a kind of performance test of offer for special engineered vehicle and testing fatigue, it is possible to the car door for different azimuth, different model size detects the information such as its switch gate power, switch lock power, air-tightness, displacement, angle and service life respectively.
A kind of assay device detecting dynamic car door reliability, it includes four installation columns, is wherein provided with two crossbeams between two installation columns, is provided with support between two crossbeams, and stent outer is provided with tail-gate part of detecting, four installation columns are provided with testing stand, testing stand has roof door part of detecting, described testing stand, crossbeam, the all connecting portions installed between column and support all adopt many screwed holes bolt demountable structure, described support can move left and right, crossbeam and testing stand can move up and down, described tail-gate part of detecting includes the first slide unit, it is arranged on the second slide unit on the first slide unit, first linear type hydraulic cylinder and the second linear type hydraulic cylinder, the first described slide unit can move up and down, second slide unit can move horizontally, second slide unit is provided with the first linear type hydraulic cylinder, the first described linear type hydraulic cylinder and the second linear type hydraulic cylinder are respectively used to afterbody switch gate and switch lock, roof door part of detecting includes the 3rd linear type hydraulic cylinder and the 4th linear type hydraulic cylinder, and the 3rd described linear type hydraulic cylinder and the 4th linear type hydraulic cylinder are respectively used to roof door switch lock and switch gate.
Above-mentioned tail-gate part of detecting includes tail-gate detection hydraulic subsystem, tail-gate detection hydraulic subsystem includes hydraulic pump, linear type hydraulic cylinder, multiple hydraulic valve, displacement transducer, filter is taken into account in pressure measxurement, described linear type hydraulic cylinder is used for tail-gate switch lock and switch gate, different switch gate pressure can be provided, different stressing conditions for tail-gate, detection, record its air-tightness and information in service life, institute's displacement sensors realizes displacement during switch tail-gate for detection of straight lines type Driven by Hydraulic Cylinder, described pressometer is for testing the hydraulic fluid pressure of hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
Above-mentioned roof door part of detecting includes roof door detection hydraulic subsystem, roof door detection hydraulic subsystem includes hydraulic pump, filter is taken into account in linear type hydraulic cylinder, multiple hydraulic valve, angular displacement sensor, pressure measxurement, described linear type hydraulic cylinder is used for roof door switch lock and switch gate, described angular displacement sensor is for detecting angle during switch roof door, described pressometer is for testing the hydraulic fluid pressure of hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
Above-mentioned roof door signal detecting subsystem is additionally provided with loading section, and roof door can apply different size load.
The method have the advantages that:
The assay device of the dynamic car door reliability of detection provided by the invention, is driven by hydraulic system, applies power easy to control, and stress can be surveyed; Testing stand adopts many screwed holes demountable structure, and backing positions can arbitrarily regulate, and can move the position of enabling oil cylinder at four direction up and down, it is adaptable to different size of car door.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the front view of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is whole device three-dimensional model diagram in the present invention.
Fig. 5 is hydraulic system principle figure in the present invention.
In Fig. 1-4: 1,2-slide unit; 3,4,9,10-linear type hydraulic cylinder; 5-testing stand; 6-installs column; 7-support; 8-crossbeam.
In Fig. 5: 11-fuel tank; 12-fuel outlet ball valve; 13-liquidometer; 14-inlet oil filter; 15-rubber compensator; 16-hydraulic pump; 17-motor; 18,25,26,27-bi-bit bi-pass reversal valve; 19-precursor overflow valve; 20,32,33,34,35,36-three position four-way directional control valve; 21,22-overflow valve; 23,43,44,45-Pressure gauge; 24,46-check valve; 28-flow speed control valve; 29,30,31-choke valve; 37-hydraulic control one-way valve; 38-rubber tube assembly; 39,40,41,42-hydraulic cylinder; 47-temperature sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
Such as Fig. 1-4, a kind of assay device detecting dynamic car door reliability, it includes four installation columns 6, is wherein provided with two crossbeams 8 between two installation columns, is provided with support 7 between two crossbeams, and stent outer is provided with tail-gate part of detecting, four installation columns are provided with testing stand 5, testing stand has roof door part of detecting, described testing stand, crossbeam, the all connecting portions installed between column and support all adopt many screwed holes bolt demountable structure, described support can move left and right, crossbeam and testing stand can move up and down, described tail-gate part of detecting includes the first slide unit 1, it is arranged on the second slide unit 2 on the first slide unit, first linear type hydraulic cylinder 3 and the second linear type hydraulic cylinder 4, the first described slide unit can move up and down, second slide unit can move horizontally, second slide unit is provided with the first linear type hydraulic cylinder 3, the first described linear type hydraulic cylinder and the second linear type hydraulic cylinder are respectively used to afterbody switch gate and switch lock, roof door part of detecting includes the 3rd linear type hydraulic cylinder 9 and the 4th linear type hydraulic cylinder 10, and the 3rd described linear type hydraulic cylinder and the 4th linear type hydraulic cylinder are respectively used to roof door switch lock and roof door switch gate.
Described tail-gate part of detecting includes tail-gate detection hydraulic subsystem, tail-gate detection hydraulic subsystem includes hydraulic pump, linear type hydraulic cylinder, multiple hydraulic valve, displacement transducer, filter is taken into account in pressure measxurement, described linear type hydraulic cylinder is used for tail-gate switch lock and switch gate, different switch gate pressure can be provided, different stressing conditions for tail-gate, detection, record its air-tightness and information in service life, institute's displacement sensors realizes displacement during switch tail-gate for detection of straight lines type Driven by Hydraulic Cylinder, described pressometer is for testing the hydraulic fluid pressure of hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power. described roof door part of detecting includes roof door detection hydraulic subsystem, roof door detection hydraulic subsystem includes hydraulic pump, filter is taken into account in linear type hydraulic cylinder, multiple hydraulic valve, angular displacement sensor, pressure measxurement, described linear type hydraulic cylinder is used for roof door switch lock and switch gate, described angular displacement sensor is for detecting angle during switch roof door, described pressometer is for testing the hydraulic fluid pressure of hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power. roof door signal detecting subsystem is additionally provided with loading section, and roof door can apply different size load.
In Fig. 5, element 18 is bi-bit bi-pass reversal valve (normally opened), and during hydraulic system normal operation, electric magnet DT1 needs electric.Its effect is as follows: 11 make hydraulic pump no-load running (electric magnet DT1 dead electricity); During 12 job failure, hydraulic system scram button (electric magnet DT1 dead electricity).
Element 19,20,21 and 22 is combined into three grades of pressure-control circuits, selects suitable system pressure according to the action that hydraulic system is different, plays safeguard protection effect; Set up maximum pressure during tail-gate switch gate simultaneously, (depend on the characteristic of load according to pressure in hydraulic system regulating tail-gate maximum impact force at closing time, when tail-gate is in the motor process of switch gate, the pressure that hydraulic oil provides only balances each other with frictional force (door and door-hinge, door and bottom surface, hydraulic cylinder self) and tail-gate acceleration, only when after tail-gate with door frame contact, load increases, and the pressure of hydraulic system just can rise. By the decrement of spring on regulation relief valve 19, set the operating pressure of overflow valve, in tail-gate and door frame contact moment, after hydraulic system pressure arrives the setting value of element 19, overflow valve starts overflow, and system pressure no longer raises, and now door cannot increase with the impulsive force of doorframe).
Element 25,26 and 27 is that bi-bit bi-pass solenoid directional control valve is (normally closed, oil circuit is obstructed), rely on control system to make three reversal valve interlockings, namely allow at most a valve work only, for selecting different test patterns, namely tail-gate detection system, roof door detection system or roof door trample simulated testing system.
Element 28 is flow speed control valve, controls to enter the size of tail-gate switch gate oil cylinder hydraulic oil flow, makes tail-gate adjustable at running medium velocity of closing the door.
Element 33 and element 34 are three position four-way directional control valve (Median Function is Y type), control switch gate action and the switch lock action of tail-gate respectively; Median Function is Y type, and when direction valve is arranged in position, now hydraulic cylinder two ends all communicate with fuel tank, hydraulic cylinder piston can move under external force, it is ensured that after tail-gate door-lock opening, and tail-gate can automatically spring open, also ensuring that tail-gate is in door closing procedure, door lock can rotate simultaneously.
Element 34 is hydraulic control one-way valve, it is prevented that roof door, in the course of the work due to certain fault (hydraulic pump does not reoffer pressure oil), drops under the impact of its deadweight.
Pressure gauge 23 is used for indicating setting system maximum pressure, and Pressure gauge 43,44 and 45 is for calculating the active force that oil cylinder is external.
Now tail-gate, the concrete motion flow of roof door action are added up as follows:
(1) table 1 below is shown in the action of tail-gate automatic opening and closing door:
Needing bigger pressure owing to removing moment of closing the door, outside the setting pressure of system is higher, the setting pressure of all the other action systems is relatively low. The equal dead electricity of not marked electric magnet.
(2) table 2 below is shown in the action of roof door automatic opening and closing door:
Needing bigger pressure owing to removing moment of closing the door, outside the setting pressure of system is higher, the setting pressure of all the other action systems is relatively low. The equal dead electricity of not marked electric magnet.
(3) table 3 below is shown in roof door loading action:
The equal dead electricity of not marked electric magnet.
Claims (4)
1. the assay device detecting dynamic car door reliability, it is characterized in that: it includes four installation columns (6), wherein being provided with two crossbeams (8) between two installation columns, be provided with support (7) between two crossbeams, stent outer is provided with tail-gate part of detecting, four installation columns are provided with testing stand (5), testing stand has roof door part of detecting, described testing stand, crossbeam, the all connecting portions installed between column and support all adopt many screwed holes bolt demountable structure, described support can move left and right to installing stud sides, crossbeam and testing stand can move up and down, described tail-gate part of detecting includes the first slide unit (1), it is arranged on the second slide unit (2) on the first slide unit, first linear type hydraulic cylinder (3) and the second linear type hydraulic cylinder (4), the first described slide unit can move up and down, second slide unit can move horizontally, second slide unit is provided with the first linear type hydraulic cylinder (3), second linear type hydraulic cylinder (4) is connected with the first linear hydraulic cylinder (3), the first described linear type hydraulic cylinder and the second linear type hydraulic cylinder are respectively used to afterbody switch gate and switch lock,Roof door part of detecting includes the 3rd linear type hydraulic cylinder (9) and the 4th linear type hydraulic cylinder (10), 4th linear type hydraulic cylinder (10) is arranged on crossbeam (8), 3rd linear type hydraulic cylinder (9) is connected with the 4th linear type hydraulic cylinder, and the 3rd described linear type hydraulic cylinder and the 4th linear type hydraulic cylinder are respectively used to roof door switch lock and switch gate.
2. the assay device of the dynamic car door reliability of detection according to claim 1, it is characterized in that: described tail-gate part of detecting includes tail-gate detection hydraulic subsystem, tail-gate detection hydraulic subsystem includes hydraulic pump, linear type hydraulic cylinder, multiple hydraulic valve, displacement transducer, filter is taken into account in pressure measxurement, described linear type hydraulic cylinder is used for tail-gate switch lock and switch gate, different switch gate pressure can be provided, different stressing conditions for tail-gate, detection, record its air-tightness and information in service life, institute's displacement sensors realizes displacement during switch tail-gate for detection of straight lines type Driven by Hydraulic Cylinder, described pressometer is for testing the hydraulic fluid pressure of hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
3. the assay device of the dynamic car door reliability of detection according to claim 1, it is characterized in that: described roof door part of detecting includes roof door detection hydraulic subsystem, roof door detection hydraulic subsystem includes hydraulic pump, filter is taken into account in linear type hydraulic cylinder, multiple hydraulic valve, angular displacement sensor, pressure measxurement, described linear type hydraulic cylinder is used for roof door switch lock and switch gate, described angular displacement sensor is for detecting angle during switch roof door, described pressometer is for testing the hydraulic fluid pressure of hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
4. the assay device of the dynamic car door reliability of detection according to claim 3, it is characterised in that: roof door detection hydraulic subsystem is additionally provided with loading section, and roof door can apply different size load.
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| CN201410454923.4A CN104236920B (en) | 2014-09-09 | 2014-09-09 | A kind of assay device detecting dynamic car door reliability |
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| CN201410454923.4A CN104236920B (en) | 2014-09-09 | 2014-09-09 | A kind of assay device detecting dynamic car door reliability |
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| CN104236920B true CN104236920B (en) | 2016-06-15 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063672B (en) * | 2017-05-26 | 2019-08-20 | 北京航空航天大学 | A kind of closed hatch door opening and closing and loading simulator |
| CN107478441B (en) * | 2017-08-01 | 2021-04-30 | 中汽研汽车检验中心(武汉)有限公司 | Device for detecting performance and durability of automobile tail plate |
| CN108278230B (en) * | 2017-09-30 | 2019-07-02 | 三峡大学 | A kind of hydraulic system and test method of miter gate simulator stand |
| CN107655676B (en) * | 2017-10-31 | 2023-06-16 | 无锡瑞林智能科技有限公司 | Automobile tail door lock function inspection mechanism |
| CN110398642A (en) * | 2018-04-24 | 2019-11-01 | 比亚迪股份有限公司 | The failure prediction method and device of Electric plug sliding door |
| CN110031205B (en) * | 2019-05-24 | 2021-03-30 | 安徽江淮汽车集团股份有限公司 | Automobile tail door test bed |
| CN110514454B (en) * | 2019-08-30 | 2021-01-01 | 奇瑞商用车（安徽）有限公司 | Device and method for testing reliability and durability of automobile electric tail gate system |
| CN113155439A (en) * | 2021-05-12 | 2021-07-23 | 恒大新能源汽车投资控股集团有限公司 | Vehicle opening and closing member fatigue detection method and system |
| CN114235374A (en) * | 2021-12-22 | 2022-03-25 | 上海无线电设备研究所 | Durability test device and method for airplane cabin door mechanism |
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| JP2001141613A (en) * | 1999-11-03 | 2001-05-25 | Hyundai Motor Co Ltd | Door inside handle tester |
| CN201233310Y (en) * | 2008-07-04 | 2009-05-06 | 中国第一汽车集团公司 | Strength test device for remaining member of side sliding door of automobile |
| CN203502231U (en) * | 2013-07-01 | 2014-03-26 | 柳州五菱汽车有限责任公司 | Vehicle door test apparatus and control panel thereof |
| CN204064686U (en) * | 2014-09-09 | 2014-12-31 | 三峡大学 | A kind of test unit detecting dynamic car door reliability |
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| CN101408483B (en) * | 2008-11-07 | 2010-08-11 | 湖南大学 | Gantry type frame for detecting white body performance of automobile |
| CN103728127B (en) * | 2014-01-21 | 2016-04-27 | 广东省肇庆市质量计量监督检测所 | A kind of checkout equipment of automatic door-closing device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141613A (en) * | 1999-11-03 | 2001-05-25 | Hyundai Motor Co Ltd | Door inside handle tester |
| CN201233310Y (en) * | 2008-07-04 | 2009-05-06 | 中国第一汽车集团公司 | Strength test device for remaining member of side sliding door of automobile |
| CN203502231U (en) * | 2013-07-01 | 2014-03-26 | 柳州五菱汽车有限责任公司 | Vehicle door test apparatus and control panel thereof |
| CN204064686U (en) * | 2014-09-09 | 2014-12-31 | 三峡大学 | A kind of test unit detecting dynamic car door reliability |
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