CN104236920A - Testing device for detecting reliability of dynamic car door - Google Patents
Testing device for detecting reliability of dynamic car door Download PDFInfo
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- CN104236920A CN104236920A CN201410454923.4A CN201410454923A CN104236920A CN 104236920 A CN104236920 A CN 104236920A CN 201410454923 A CN201410454923 A CN 201410454923A CN 104236920 A CN104236920 A CN 104236920A
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Abstract
The invention relates to a testing device for detecting the reliability of a dynamic car door. The testing device comprises a mechanical part and a hydraulic part. The mechanical part comprises a test table, a support and the like. The connecting portion of the test table is of a multi-screw-hole detachable structure, the connecting position of the support can be adjusted, and the support can be suitable for car doors of different specifications and sizes. The hydraulic part comprises a tail door detecting portion and a top door detecting portion, and the hydraulic part mainly acts to open and close a lock and open and close the door. Two linear type hydraulic cylinders are adopted in the tail door detecting portion and the top door detecting portion to open and close the lock and the door. After door opening and closing tests are carried out on the tail door (or the top door) many times, pressure maintaining detection is carried out through an airbag when the door is closed. The stress, air impermeability, the service life and the like of the vertically-arranged or horizontally-arranged car doors of various sizes can be automatically detected through a designed hydraulic system, then various properties are checked, a test conclusion is obtained, and a reference basis is provided for car door improvement and design.
Description
Technical field
The present invention relates to experiment detection device, particularly a kind of test unit detecting dynamic car door reliability.
Background technology
The car door of armored vehicle (the special engineered vehicle of following general designation) takes advantage of the crucial pass of carrying member and equipment vehicles passing in and out, vehicle environment for use is different, take advantage of year member healthy different from the unlatching ability had time injured, for meeting different man-machine environment requirements, ensure under any battlefield surroundings and personnel status, car door can be opened smoothly and properties still has good stability after repeated use.Automatically detect for realizing car door performance, the object of tired examination, need a kind of general dynamic car door reliability test bench, realize the function impermeability to special engineered Vehicular door, switch gate power, switch lock power and serviceable life etc. detecting, record.But, the major part of vehicle detection test is both at home and abroad 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 the relevant design parameter extracting car door, cost consumption is large, 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 to-and-fro movement of cylinder can be utilized to drive link opening car door, but air cylinder driven power controls to detect inconvenience, and set of device is only applicable to a kind of car door of gauge size, cannot recycle, applicability is poor.
Summary of the invention
Technical matters to be solved by this invention is for the car door of special engineered vehicle provides the test unit of a kind of performance test and testing fatigue, can detect the information such as its switch gate power, switch lock power, impermeability, displacement, angle and serviceable life respectively for the car door of different azimuth, different model size.
Detect a test unit for dynamic car door reliability, it comprises four installation columns, is wherein provided with two crossbeams between two installation columns, and be provided with support between two crossbeams, stent outer is provided with tail-gate part of detecting, four installation columns are provided with testing table, testing table has roof door part of detecting, described testing table, crossbeam, the all connecting portions installed between column and support all adopt many threaded holes bolt demountable structure, described support can move left and right, crossbeam and testing table can move up and down, described tail-gate part of detecting comprises the first slide unit, be arranged on the second slide unit on the first slide unit, first linear pattern hydraulic cylinder and the second linear pattern 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 pattern hydraulic cylinder, the first described linear pattern hydraulic cylinder and the second linear pattern hydraulic cylinder are respectively used to afterbody switch gate and switch lock, roof door part of detecting comprises the 3rd linear pattern hydraulic cylinder and the 4th linear pattern hydraulic cylinder, and the 3rd described linear pattern hydraulic cylinder and the 4th linear pattern hydraulic cylinder are respectively used to roof door switch lock and switch gate.
Above-mentioned tail-gate part of detecting comprises tail-gate and detects hydraulic subsystem, tail-gate detects hydraulic subsystem and comprises hydraulic pump, linear pattern hydraulic cylinder, many kinds of liquid pressure valve, displacement transducer, filtrator is taken into account in pressure survey, described linear pattern hydraulic cylinder is used for tail-gate switch lock and switch gate, different switch gate pressure can be provided, for the different stressing conditions of tail-gate, detect, record its impermeability and serviceable life information, institute's displacement sensors is used for displacement when detection of straight lines type Driven by Hydraulic Cylinder realizes switch tail-gate, described pressometer is used for the hydraulic fluid pressure of testing hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
Above-mentioned roof door part of detecting comprises roof door and detects hydraulic subsystem, roof door detects that hydraulic subsystem comprises hydraulic pump, filtrator is taken into account in linear pattern hydraulic cylinder, many kinds of liquid pressure valve, angular displacement sensor, pressure survey, described linear pattern hydraulic cylinder is used for roof door switch lock and switch gate, described angular displacement sensor is used for angle during detector switch roof door, described pressometer is used for the hydraulic fluid pressure of testing hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
Above-mentioned roof door signal detecting subsystem is also provided with loading section, can apply different size load to roof door.
The present invention has following beneficial effect:
The test unit of the dynamic car door reliability of detection provided by the invention, is driven by hydraulic system, and it is convenient that the power that applies controls, and stressedly surveys; Testing table adopts many threaded holes demountable structure, and backing positions can regulate arbitrarily, can move the position of enabling oil cylinder, be applicable to the car door of different size at four direction up and down.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is front view of the present invention.
Fig. 2 is the vertical 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 pattern hydraulic cylinder; 5-testing table; 6-installs column; 7-support; 8-crossbeam.
In Fig. 5: 11-fuel tank; 12-fuel outlet ball valve; 13-liquid level gauge; 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-surplus valve; 23,43,44,45-tensimeter; 24,46-retaining valve; 28-flow speed control valve; 29,30,31-throttling valve; 37-hydraulic control one-way valve; 38-rubber tube assembly; 39,40,41,42-hydraulic cylinder; 47-temperature sensor.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
As Fig. 1-4, a kind of test unit detecting dynamic car door reliability, it comprises four installation columns 6, and be wherein provided with between two installation columns between two crossbeams, 8, two crossbeams and be provided with support 7, stent outer is provided with tail-gate part of detecting, four installation columns are provided with testing table 5, testing table has roof door part of detecting, described testing table, crossbeam, the all connecting portions installed between column and support all adopt many threaded holes bolt demountable structure, described support can move left and right, crossbeam and testing table can move up and down, described tail-gate part of detecting comprises the first slide unit 1, be arranged on the second slide unit 2 on the first slide unit, first linear pattern hydraulic cylinder 3 and the second linear pattern 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 pattern hydraulic cylinder 3, the first described linear pattern hydraulic cylinder and the second linear pattern hydraulic cylinder are respectively used to afterbody switch gate and switch lock, roof door part of detecting comprises the 3rd linear pattern hydraulic cylinder 9 and the 4th linear pattern hydraulic cylinder 10, and the 3rd described linear pattern hydraulic cylinder and the 4th linear pattern hydraulic cylinder are respectively used to roof door switch lock and roof door switch gate.
Described tail-gate part of detecting comprises tail-gate and detects hydraulic subsystem, tail-gate detects hydraulic subsystem and comprises hydraulic pump, linear pattern hydraulic cylinder, many kinds of liquid pressure valve, displacement transducer, filtrator is taken into account in pressure survey, described linear pattern hydraulic cylinder is used for tail-gate switch lock and switch gate, different switch gate pressure can be provided, for the different stressing conditions of tail-gate, detect, record its impermeability and serviceable life information, institute's displacement sensors is used for displacement when detection of straight lines type Driven by Hydraulic Cylinder realizes switch tail-gate, described pressometer is used for the hydraulic fluid pressure of testing hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.Described roof door part of detecting comprises roof door and detects hydraulic subsystem, roof door detects that hydraulic subsystem comprises hydraulic pump, filtrator is taken into account in linear pattern hydraulic cylinder, many kinds of liquid pressure valve, angular displacement sensor, pressure survey, described linear pattern hydraulic cylinder is used for roof door switch lock and switch gate, described angular displacement sensor is used for angle during detector switch roof door, described pressometer is used for the hydraulic fluid pressure of testing hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.Roof door signal detecting subsystem is also provided with loading section, can apply different size load to roof door.
As in Fig. 5, element 18 is bi-bit bi-pass reversal valve (often opening), and when hydraulic system normally works, electromagnet DT1 needs electric.Its effect is as follows: 11 make hydraulic pump no-load running (electromagnet DT1 dead electricity); During 12 job failure, hydraulic system scram button (electromagnet DT1 dead electricity).
Element 19,20,21 and 22 is combined into three grades of pressure-control circuits, and suitable system pressure is selected in the action different according to hydraulic system, plays safeguard protection effect; Set up maximum pressure during tail-gate switch gate simultaneously, (characteristic of load is depended on according to pressure in hydraulic system to regulate tail-gate maximum impact force at closing time, when in the motion process of tail-gate at switch gate, the pressure that hydraulic oil provides only balances each other with friction force (door and door-hinge, door and bottom surface, hydraulic cylinder self) and tail-gate accelerating force, only have when after tail-gate and door frame contact, load increases, and the pressure of hydraulic system just can rise.By the decrement of spring on regulation relief valve 19, the working pressure of setting surplus valve, in tail-gate and door frame contact moment, after hydraulic system pressure arrives the setting value of element 19, surplus valve starts overflow, and system pressure no longer raises, and now the impulsive force of door and doorframe cannot increase).
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 the interlocking of three reversal valves, namely allow at most a valve job 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 the size entering tail-gate switch gate oil cylinder hydraulic oil flow, makes tail-gate adjustable at operational process 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 positioned at meta, now hydraulic cylinder two ends all communicate with fuel tank, hydraulic cylinder piston can move under external force, and after ensureing tail-gate door-lock opening, tail-gate can automatically spring open, also guarantee that tail-gate is in door closing procedure, door lock can rotate simultaneously.
Element 34 is hydraulic control one-way valve, prevents 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.
Tensimeter 23 is used to indicate setting system maximum pressure, and tensimeter 43,44 and 45 is for calculating the external acting force of oil cylinder.
Now tail-gate, the concrete motion flow of roof door action are added up as follows:
(1) action of tail-gate automatic opening and closing door sees the following form 1:
Owing to needing larger pressure instantaneously except closing the door, outside the set pressure of system is higher, the set pressure of all the other moving systems is lower.The equal dead electricity of not marked electromagnet.
(2) action of roof door automatic opening and closing door sees the following form 2:
Owing to needing larger pressure instantaneously except closing the door, outside the set pressure of system is higher, the set pressure of all the other moving systems is lower.The equal dead electricity of not marked electromagnet.
(3) roof door loading action sees the following form 3:
The equal dead electricity of not marked electromagnet.
Claims (4)
1. one kind is detected the test unit of dynamic car door reliability, it is characterized in that: it comprises four installation columns (6), wherein be 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 table (5), testing table has roof door part of detecting, described testing table, crossbeam, the all connecting portions installed between column and support all adopt many threaded holes bolt demountable structure, described support can move left and right, crossbeam and testing table can move up and down, described tail-gate part of detecting comprises the first slide unit (1), be arranged on the second slide unit (2) on the first slide unit, first linear pattern hydraulic cylinder (3) and the second linear pattern 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 pattern hydraulic cylinder (3), the first described linear pattern hydraulic cylinder and the second linear pattern hydraulic cylinder are respectively used to afterbody switch gate and switch lock, roof door part of detecting comprises the 3rd linear pattern hydraulic cylinder (9) and the 4th linear pattern hydraulic cylinder (10), and the 3rd described linear pattern hydraulic cylinder and the 4th linear pattern hydraulic cylinder are respectively used to roof door switch lock and switch gate.
2. the test unit of the dynamic car door reliability of detection according to claim 1, it is characterized in that: described tail-gate part of detecting comprises tail-gate and detects hydraulic subsystem, tail-gate detects hydraulic subsystem and comprises hydraulic pump, linear pattern hydraulic cylinder, many kinds of liquid pressure valve, displacement transducer, filtrator is taken into account in pressure survey, described linear pattern hydraulic cylinder is used for tail-gate switch lock and switch gate, different switch gate pressure can be provided, for the different stressing conditions of tail-gate, detect, record its impermeability and serviceable life information, institute's displacement sensors is used for displacement when detection of straight lines type Driven by Hydraulic Cylinder realizes switch tail-gate, described pressometer is used for the hydraulic fluid pressure of testing hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
3. the test unit of the dynamic car door reliability of detection according to claim 1, it is characterized in that: described roof door part of detecting comprises roof door and detects hydraulic subsystem, roof door detects that hydraulic subsystem comprises hydraulic pump, filtrator is taken into account in linear pattern hydraulic cylinder, many kinds of liquid pressure valve, angular displacement sensor, pressure survey, described linear pattern hydraulic cylinder is used for roof door switch lock and switch gate, described angular displacement sensor is used for angle during detector switch roof door, described pressometer is used for the hydraulic fluid pressure of testing hydraulic system breaker in middle door hydraulic cylinder, i.e. switch gate power.
4. the test unit of the dynamic car door reliability of detection according to claim 4, is characterized in that: roof door signal detecting subsystem is also provided with loading section, can apply different size load to roof door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| CN104236920A true CN104236920A (en) | 2014-12-24 |
| CN104236920B CN104236920B (en) | 2016-06-15 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063672A (en) * | 2017-05-26 | 2017-08-18 | 北京航空航天大学 | A kind of closed hatch door is opened and closed and loading simulator |
| CN107478441A (en) * | 2017-08-01 | 2017-12-15 | 武汉华威专用汽车检测有限责任公司 | A kind of device detected for automobile tailboard performance detection and durability |
| CN107655676A (en) * | 2017-10-31 | 2018-02-02 | 无锡瑞林控制软件有限公司 | A kind of automobile tail gate lock functional check mechanism |
| CN108278230A (en) * | 2017-09-30 | 2018-07-13 | 三峡大学 | A kind of hydraulic system and test method of miter gate simulator stand |
| CN110031205A (en) * | 2019-05-24 | 2019-07-19 | 安徽江淮汽车集团股份有限公司 | A kind of automobile tail gate test-bed |
| 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 |
| CN110514454A (en) * | 2019-08-30 | 2019-11-29 | 奇瑞商用车（安徽）有限公司 | Automobile power back door system reliability device for testing endurance and its test method |
| 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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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063672A (en) * | 2017-05-26 | 2017-08-18 | 北京航空航天大学 | A kind of closed hatch door is opened and closed and loading simulator |
| 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 |
| CN107478441A (en) * | 2017-08-01 | 2017-12-15 | 武汉华威专用汽车检测有限责任公司 | A kind of device detected for automobile tailboard performance detection and durability |
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| CN108278230A (en) * | 2017-09-30 | 2018-07-13 | 三峡大学 | A kind of hydraulic system and test method of miter gate simulator stand |
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| 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 |
| CN110031205A (en) * | 2019-05-24 | 2019-07-19 | 安徽江淮汽车集团股份有限公司 | A kind of automobile tail gate test-bed |
| CN110514454A (en) * | 2019-08-30 | 2019-11-29 | 奇瑞商用车（安徽）有限公司 | Automobile power back door system reliability device for testing endurance and its test method |
| 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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