CN106289818A - The passive charger of simulated automotive steering drag - Google Patents

The passive charger of simulated automotive steering drag Download PDF

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Publication number
CN106289818A
CN106289818A CN201610571542.3A CN201610571542A CN106289818A CN 106289818 A CN106289818 A CN 106289818A CN 201610571542 A CN201610571542 A CN 201610571542A CN 106289818 A CN106289818 A CN 106289818A
Authority
CN
China
Prior art keywords
oil return
branch road
hydraulic jack
return branch
check valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610571542.3A
Other languages
Chinese (zh)
Inventor
刘苏超
姚晓舸
吴健
费龑栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Kairui Automobile Test Development Co Ltd
China Automotive Engineering Research Institute Co Ltd
Original Assignee
Suzhou Kairui Automobile Test Development Co Ltd
China Automotive Engineering Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Kairui Automobile Test Development Co Ltd, China Automotive Engineering Research Institute Co Ltd filed Critical Suzhou Kairui Automobile Test Development Co Ltd
Priority to CN201610571542.3A priority Critical patent/CN106289818A/en
Publication of CN106289818A publication Critical patent/CN106289818A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/06Steering behaviour; Rolling behaviour

Abstract

The invention discloses the passive charger of a kind of simulated automotive steering drag, including top petrol tank, driving means, and divide right and left the first hydraulic jack of layout, the second hydraulic jack, described first hydraulic jack inner chamber is by there being bar piston separator to be divided into the first rodless cavity and the first rod chamber, and described second hydraulic jack inner chamber is divided into the second rod chamber and the second rodless cavity also by there being bar piston separator;In top petrol tank, ullage draws an oil return line, and this oil return line is divided into the first oil return branch road and the second oil return branch road of parallel connection, every oil return branch road is all disposed with overflow valve, check valve and Pressure gauge, and connects with the first hydraulic jack and the second hydraulic jack;The outfan of test component connects the first rod chamber and the second rod chamber, the input of described driving means connecting test parts by there being the piston rod of bar piston separator, it is provided that power also promotes two to have bar piston separator left right horizontal movement.Simple in construction, easy to operate, save the energy and cost.

Description

The passive charger of simulated automotive steering drag
Technical field
The invention belongs to automobile component technical field of measurement and test, more particularly, it relates to a kind of simulated automotive turns to The passive charger of resistance.
Background technology
China's industry standard QC/T29096-2014 automobile steering device assembly Bench test methods defines steering gear tired The method of labor durable test, the steering gear fatigue life test of China mainly carries out bench test according to this standard.
At present, the domestic steering assembly fatigue endurance that had many enterprises, institution of higher learning according to this standard development Charger, charger the most all uses hydraulic actuator or motor to load.
Analog loading device disclosed in CN103940623A is by controlling the realization loading of servo loading motor, Analog loading device disclosed in CN101886982A is that either servomotor is also by controlling hydraulic actuator realization loading It is hydraulic actuator, it is achieved this set charger is just necessarily required to power source, controls software, data acquisition, pull pressure sensor Deng, and electric energy when running, must be expended.
CN1883993A steering drag analog is to adopt to be spring-loaded, simple in construction, but turning due to spring simulation Change with spring deformation to resistance, it is impossible to meet the requirement of constant steering drag.
In the loading solution of the constant steering drag of the existing simulated automotive of Integrated comparative, loading system is complicated, loaded down with trivial details, The problem ratio realizing cost is more prominent.
Summary of the invention
It is desirable to provide a kind of brief test device, can test component steering drag be added passive realization Carrying, and can be greatly simplified testing equipment structure, the simulated automotive of the manufacturing expense and experimentation cost that reduce testing equipment turns to The passive charger of resistance.
To this end, the technical solution adopted in the present invention is: the passive charger of a kind of simulated automotive steering drag, including Top petrol tank, driving means, and divide right and left the first hydraulic jack of layout, the second hydraulic jack, described first hydraulic oil Cylinder inner chamber is by there being bar piston separator to be divided into the first rodless cavity and the first rod chamber, and described second hydraulic jack inner chamber is also by having Bar piston separator is divided into the second rod chamber and the second rodless cavity;In top petrol tank, ullage draws an oil return line, this time Oil circuit is divided into the first oil return branch road and the second oil return branch road of parallel connection, and described first oil return branch road is in series with an overflow valve, And it being arranged in parallel a check valve with overflow valve, the oil-in of described check valve is connected to top petrol tank and less than liquid level height in case Degree position, described check valve be connected the oil circuit after having a Pressure gauge, and parallel connection on the oil circuit after overflow valve parallel connection and be divided into Two pipelines, one of them pipeline connection first rodless cavity, another pipeline connection second rod chamber;Described second oil return branch road In be also equipped with an overflow valve, a check valve and a Pressure gauge, described overflow valve, check valve and manometric layout side Formula is all identical with the first oil return branch road, and the check valve of the second oil return branch road in parallel with overflow valve after oil circuit be also classified into two pipes Road, one of them pipeline connection first rod chamber, another pipeline connection second rodless cavity;The outfan of test component is by having The piston rod of bar piston separator connects the first rod chamber and the second rod chamber, the input of described driving means connecting test parts End, it is provided that power also promotes two to have bar piston separator left right horizontal movement;Described first oil return branch road and the second oil return branch road The unlatching pressure of check valve be respectively less than pressure produced by top petrol tank and each self-corresponding check valve liquid level difference.
On the basis of such scheme, two described check valve oil-ins are all connected to bottom top petrol tank.
The invention has the beneficial effects as follows: simple in construction, stable, reliable;And without power source, control software, data acquisition, Pull pressure sensor, just can realize the constant load of steering drag, enormously simplify testing equipment structure, reduces testing equipment Development cost;Additionally, in steering gear fatigue process of the test, loading end, without electric energy, reduces experimentation cost.
Accompanying drawing explanation
Fig. 1 is the hydraulic structure figure of the present invention.
Detailed description of the invention
Below by embodiment and combine accompanying drawing, the invention will be further described:
As it is shown in figure 1, the passive charger of a kind of simulated automotive steering drag, including top petrol tank 1, driving means 7, And first hydraulic jack the 5, second hydraulic jack 6 arranged of dividing right and left, the first hydraulic jack 5 inner chamber is lived by there being bar to separate Plug is divided into the first rodless cavity P1 and the first rod chamber P2, and the second hydraulic jack 6 inner chamber is also by there being bar piston separator to be divided into second Rod chamber P3 and the second rodless cavity P4;In top petrol tank, above 1 liquid level a, draw an oil return line T, this oil return line T be divided into also The first oil return branch road Ta and the second oil return branch road Tb of connection, the first oil return branch road Ta is in series with an overflow valve 2, and and overflow Valve 2 has been arranged in parallel a check valve 3, and the oil-in of check valve 3 is connected to top petrol tank 1 and less than liquid level a height and position in case Place, check valve 3 has a Pressure gauge 4 with being connected on the oil circuit after overflow valve 2 parallel connection, and the oil circuit after parallel connection is divided into two pipes Road, one of them pipeline connection the first rodless cavity P1, another pipeline connection the second rod chamber P3;In second oil return branch road Tb also It is provided with 2, check valve 3 of an overflow valve and a Pressure gauge 4, overflow valve 2, check valve 3 and the arrangement of Pressure gauge 4 All identical with the first oil return branch road Ta, and the check valve 3 of the second oil return branch road Tb in parallel with overflow valve 2 after oil circuit be also classified into two Individual pipeline, one of them pipeline connection the first rod chamber P2, another pipeline connection the second rodless cavity P4;Test component 8 defeated Go out end by there being the piston rod of bar piston separator 9 to connect the first rod chamber P2 and the second rod chamber P3, the i.e. output of test component 8 End connects the first rod chamber P2 by the piston rod having bar piston separator 9 of the first hydraulic jack 5, meanwhile, also by the second liquid The piston rod having bar piston separator 9 of compressing cylinder 6 connects the second rod chamber P3, the input of driving means connecting test parts 8, Power is provided and promotes two to have bar piston separator 9 left right horizontal movement;First oil return branch road Ta's and the second oil return branch road Tb The unlatching pressure of check valve 3 is respectively less than pressure produced by top petrol tank 1 and each self-corresponding check valve 3 liquid level difference.
When test component 8 towards right motion time, two can be promoted to have bar piston separator 9 to move, the first rod chamber P2 and Hydraulic oil in second rodless cavity P4 will necessarily be discharged, and now, in the second oil return branch road Tb, check valve 3 is closed, hydraulic oil The unlatching pressure that must pull against overflow valve 2 setting could return top petrol tank 1 so that the first rod chamber P2 and the second rodless cavity P4 chamber Interior hydraulic oil necessarily reaches the unlatching pressure that overflow valve 2 sets, and the most whole hydraulic circuit sets up pressure, it is achieved the first liquid Compressing cylinder 5 and the passive loading to test component 8 of second hydraulic jack 6.The passive load loaded is equal to the unlatching pressure of overflow valve 2 Power is multiplied by the area of bar piston separator 9, owing to there being bar piston separator 9 area constant, only need to change the unlatching pressure of overflow valve 2 Value just can set different constant load load.
While in the first rod chamber P2 and the second rodless cavity P4, hydraulic oil is extruded, in the second oil return branch road Tb, Check valve 3 is opened, and makes the hydraulic oil in top petrol tank 1 add to rapidly the first rodless cavity P1 and the second rod chamber P3 intracavity, protects All the time hydraulic oil it is full of in demonstrate,proving the first hydraulic jack 5 and the second hydraulic jack 6.
When test component 8 moves towards left side, identical with above-mentioned loading principle, the first rodless cavity P1 and the second rod chamber P3 Interior hydraulic oil returns to top petrol tank 1 by overflow valve 2 and sets up pressure generation load, and the first rod chamber P2 and the second rodless cavity P4 is then Intracavity is made to be full of hydraulic oil all the time under the effect of top petrol tank 1 and check valve 3.So passive charger just achieves test Parts 8 test the load on of a circulation.
The present embodiment utilizes specific hydraulic circuit to realize the loading of steering drag, with traditional steering drag charger Maximum difference is that the present embodiment is to utilize the proper property of hydraulic component to realize passive loading.
Secondly, when utilizing passive charger that test component 8 is loaded, it is not required to any control, as long as the pressure of overflow valve 2 Power is set up equality testing parts 8 and is loaded the force value of load, eliminates control software, industrial computer, pull pressure sensor Components and parts needed for actively loading Deng some, and owing to being passive loading, the most actively actuator, therefore need not expend electricity Can, hardware cost saves highly significant.
Additionally, the passive load loaded was determined by the set pressure of overflow valve 2, completely in adding of analog constant steering drag Load aspect, the load ratio of passive charger actively loads simpler, stable, reliable.
Preferred as above-described embodiment, two check valve 3 oil-ins are all connected to bottom top petrol tank 1.

Claims (2)

1. the passive charger of a simulated automotive steering drag, it is characterised in that: include top petrol tank (1), driving means (7), and divide right and left arrange the first hydraulic jack (5), the second hydraulic jack (6), described first hydraulic jack (5) inner chamber By there being bar piston separator to be divided into the first rodless cavity (P1) and the first rod chamber (P2), described second hydraulic jack (6) inner chamber is also By there being bar piston separator to be divided into the second rod chamber (P3) and the second rodless cavity (P4);(1) liquid level (a) top in top petrol tank Drawing an oil return line (T), this oil return line (T) is divided into the first oil return branch road (Ta) and the second oil return branch road (Tb), the institute of parallel connection State and on the first oil return branch road (Ta), be in series with an overflow valve (2), and be arranged in parallel a check valve (3) with overflow valve (2), The oil-in of described check valve (3) be connected to top petrol tank (1) and less than liquid level (a) height and position in case at, described check valve (3) It is connected with on the oil circuit after overflow valve (2) parallel connection and has a Pressure gauge (4), and the oil circuit after parallel connection is divided into two pipelines, wherein One pipeline connection the first rodless cavity (P1), another pipeline connection the second rod chamber (P3);Described second oil return branch road (Tb) In be also equipped with an overflow valve (2), a check valve (3) and a Pressure gauge (4), described overflow valve (2), check valve (3) All identical with the first oil return branch road (Ta) with the arrangement of Pressure gauge (4), and the check valve (3) of the second oil return branch road (Tb) with Oil circuit after overflow valve (2) parallel connection is also classified into two pipelines, one of them pipeline connection the first rod chamber (P2), another pipeline Connect the second rodless cavity (P4);The outfan of test component (8) has bar by there being the piston rod of bar piston separator (9) to connect first Chamber (P2) and the second rod chamber (P3), the input of described driving means connecting test parts (8), it is provided that power also promotes two There is bar piston separator (9) left right horizontal movement;Described first oil return branch road (Ta) and the check valve (3) of the second oil return branch road (Tb) Unlatching pressure be respectively less than pressure produced by top petrol tank (1) and each self-corresponding check valve (3) liquid level difference.
The passive charger of simulated automotive steering drag the most according to claim 1, it is characterised in that: two described lists It is all connected to top petrol tank (1) bottom to valve (3) oil-in.
CN201610571542.3A 2016-07-19 2016-07-19 The passive charger of simulated automotive steering drag Pending CN106289818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610571542.3A CN106289818A (en) 2016-07-19 2016-07-19 The passive charger of simulated automotive steering drag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610571542.3A CN106289818A (en) 2016-07-19 2016-07-19 The passive charger of simulated automotive steering drag

Publications (1)

Publication Number Publication Date
CN106289818A true CN106289818A (en) 2017-01-04

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2668459Y (en) * 2003-12-18 2005-01-05 李田生 Automobile training gear torque detecting device
CN200941083Y (en) * 2006-06-30 2007-08-29 重庆工学院 Test bench for autocar steering gear
CN201034812Y (en) * 2007-04-02 2008-03-12 张玲剑 Simulated bicycle detecting structure of vehicle hydraulic traversing mechanism detecting station
CN102242752A (en) * 2010-05-10 2011-11-16 徐克琼 Structure of novel hydraulic press
CN102434509A (en) * 2011-12-03 2012-05-02 徐州开蓝信息科技有限公司 Cyclic-type hydraulic control system
CN203335504U (en) * 2013-07-19 2013-12-11 重庆恒隆红岩汽车转向系统有限公司 Power steering gear performance testing hydraulic device
CN103940623A (en) * 2014-04-14 2014-07-23 同济大学 Loading device simulating dynamic steering resistance moment of automobile
US9188507B2 (en) * 2011-07-26 2015-11-17 Dspace Digital Signal Processing And Control Engineering Gmbh Systems and methods for testing a steering control unit including a test stand

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2668459Y (en) * 2003-12-18 2005-01-05 李田生 Automobile training gear torque detecting device
CN200941083Y (en) * 2006-06-30 2007-08-29 重庆工学院 Test bench for autocar steering gear
CN201034812Y (en) * 2007-04-02 2008-03-12 张玲剑 Simulated bicycle detecting structure of vehicle hydraulic traversing mechanism detecting station
CN102242752A (en) * 2010-05-10 2011-11-16 徐克琼 Structure of novel hydraulic press
US9188507B2 (en) * 2011-07-26 2015-11-17 Dspace Digital Signal Processing And Control Engineering Gmbh Systems and methods for testing a steering control unit including a test stand
CN102434509A (en) * 2011-12-03 2012-05-02 徐州开蓝信息科技有限公司 Cyclic-type hydraulic control system
CN203335504U (en) * 2013-07-19 2013-12-11 重庆恒隆红岩汽车转向系统有限公司 Power steering gear performance testing hydraulic device
CN103940623A (en) * 2014-04-14 2014-07-23 同济大学 Loading device simulating dynamic steering resistance moment of automobile

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Application publication date: 20170104