CN104483111B - All-hydraulic steering gear test system - Google Patents
All-hydraulic steering gear test system Download PDFInfo
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- CN104483111B CN104483111B CN201410697917.1A CN201410697917A CN104483111B CN 104483111 B CN104483111 B CN 104483111B CN 201410697917 A CN201410697917 A CN 201410697917A CN 104483111 B CN104483111 B CN 104483111B
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Abstract
The invention discloses an all-hydraulic steering gear test system, which comprises an oil tank, a motor pump system, a pressure and flow control valve system, a temperature control heating system, a filtering system, a circulation cooling system, an oil circuit switching control system, a steering power loading module, a bridge-type analog loading module, an oil cylinder working condition loading module, a sensor data acquisition module, an electronic control system and a computer data processing center. According to the all-hydraulic steering gear test system, the switching control of various oil circuits can be carried out by the oil circuit switching control module, the test of a load sensing type steering gear and other steering gears of the same type can be realized, the types of test items are more complete and comprise a power steering performance test, an end point sensing end point slippage test, a neutral position replaying test, a pressure loss test, an internal leakage test, a flow change rate test, a manual steering voltage efficiency test, a road sense test and the like, and the test requirements on the all-hydraulic steering gear in China and abroad can be met.
Description
Technical field
The present invention relates to steering gear test system technical field, especially relate to a kind of all-hydraulic steering gear and survey
Test system.
Background technology
All-hydraulic steering gear is widely used in engineering machinery and Vehicular turn and Hydraulic Drive in Vessel rudder, human pilot
Larger steering force can be realized with less steering force by it to control, and in performance safety, can
Lean on, manipulate flexible, light.All-hydraulic steering gear needs by multinomial test before production is dispatched from the factory, and
And constantly bringing forth new ideas and develop with all-hydraulic steering gear, its type also gets more and more, thus to inhomogeneity
The test event of the all-hydraulic steering gear of type and requirement are also not quite similar.Survey to all-hydraulic steering gear at present
Ping frequently with hydraulic steering gear test platform or system, as disclosed in patent announcement CN203705156U
" steering gear test platform ", it mainly includes fuel tank, heating and cooling system, hydraulic pressure for oil circulation and valve system
System, steering power support system, electric control system, can achieve the mechanical resistance square to hydraulic steering gear
Experiment, electronic-controlled power steering performance test (including the test such as the pressure loss, flow change rate) and sealing
Can test, the feature of this steering gear test platform is using separately positioned main fuel tank and auxiliary fuel tank, it is to avoid
Output and the hydraulic oil returning directly mix, and combine multiple oil filter, can ensure the pure property of hydraulic oil,
To keep the stable operation of test platform, reduce fault, improve test accuracy.But such steering gear
Test platform is only used for the conventional project test of traditional type hydraulic steering gear, and can not be to load sensing
The every test of the carrying out of type steering gear, and its test event incomplete it is impossible to meet multiple marks both at home and abroad
The accurate test request to hydraulic steering gear.
Content of the invention
The deficiency existing for above-mentioned prior art, it is an object of the invention to provide a kind of all-hydraulic steering gear
Test system, can achieve electronic-controlled power steering performance test, the terminal sense terminal sliding of all types of hydraulic steering gears
Test, pressure loss test, endosmosis test leakage examination, flow change rate test, manpower are replied in test, middle position
Turn to the test events such as volumetric efficiency, road feel test, to meet the test to all-hydraulic steering gear both at home and abroad
Require.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of all-hydraulic steering gear test system, including fuel tank, motor pumping system, pressure and flow-control
Valve system, temperature control heating system, filtration system, circulating cooling system, oil circuit switching control module, turn
To power load-on module, bridge-type analog load-on module, oil cylinder operating mode load-on module, sensor data acquisition
Module, electric-control system and computer digital animation center；
Described motor pumping system includes the first motor pump group, the second motor pump group and the 3rd motor pump group, institute
State pressure and flow control valve system includes flow control valve, the first remotely control overflow valve, second long-range
Control overflow valve, the 3rd remotely control overflow valve, the 4th remotely control overflow valve, the first two-way stop formula
Solenoid ball valve, the second two-way stop formula Solenoid ball valve, the 3rd two-way stop formula Solenoid ball valve, the 4th two-way
Cut-off type Solenoid ball valve, the 5th two-way stop formula Solenoid ball valve, the 6th two-way stop formula Solenoid ball valve,
Seven two-way stop formula Solenoid ball valves, the 8th two-way stop formula Solenoid ball valve and the 9th two-way stop formula electromagnetic ball
Valve, described temperature control heating system includes heater and thermometer, and described filtration system includes oil filter, institute
State circulating cooling system and include cooler, described oil circuit switching control module includes the first two-bit triplet electromagnetism
Reversal valve, the second two-bit triplet solenoid directional control valve, two two electric change valves, pressure-gradient control valve, the one or three
Position four-way electromagnetic reversing valve and the second three-position four-way electromagnetic directional valve, described steering power load-on module includes
Servomotor, limit turn round device, change speed gear box and moment of torsion rotating speed angel measuring instrument, described bridge-type analog load-on module
Including the first check valve, the second check valve, the 3rd check valve and the 4th check valve, described oil cylinder operating mode adds
Carry module and include the first oil cylinder, the second oil cylinder, the first one-way throttle valve, the second one-way throttle valve, described
Sensor data acquisition module includes first flowmeter, second flowmeter, lowpressure stream gauge, first pressure
Sensor, second pressure sensor, the 3rd pressure transducer, the 4th pressure transducer, the 5th pressure pass
Sensor and the 6th pressure transducer；
Servomotor, limit turn round device, change speed gear box and moment of torsion rotating speed angel measuring instrument are sequentially arranged and be connected to by
Survey the steering power input of steering gear, the first motor pump group, the second motor pump group and the 3rd motor pump group
Oil inlet end be connected with fuel tank respectively, the pump oil end of the first motor pump group and the second motor pump group with first liang
Position three-way solenoid valve connects, the first fuel-displaced branch road of the first two-bit triplet solenoid directional control valve and second liang
Position three-way solenoid valve connects, the second fuel-displaced branch road of the first two-bit triplet solenoid directional control valve and the one or three
Position four-way electromagnetic reversing valve connects, the first fuel-displaced branch road of the second two-bit triplet solenoid directional control valve and two two
Electric change valve connection, the second fuel-displaced branch road of the second two-bit triplet solenoid directional control valve and tested steering gear
P mouth connect, first flowmeter is arranged on the second fuel-displaced branch road of the second two-bit triplet solenoid directional control valve,
Two two electric change valves are connected with pressure-gradient control valve, and the CF mouth of pressure-gradient control valve is connected to by tubular type check valve
On second fuel-displaced branch road of two two-bit triplet solenoid directional control valves, the LS mouth of pressure-gradient control valve and the control of tested steering gear
Donsole connects, and the LS mouth that the 5th pressure transducer is arranged at pressure-gradient control valve is connected with the control mouth of tested steering gear
Oil circuit on, the oil return opening of pressure-gradient control valve is connected with fuel tank by the first oil return branch road, first 3-position 4-way electricity
Magnetic reversal valve is connected with fuel tank by the second oil return branch road, and oil filter is arranged on the second oil return branch road, stream
Control valve is arranged between the pump oil end of the first motor pump group and the first oil return branch road, the 4th remotely control
Overflow valve is arranged between the pump oil end of the second motor pump group and the second oil return branch road, heater and thermometer
Be arranged in fuel tank, be provided between the T mouth of tested steering gear and the second oil return branch road the first return line and
Second return line, the 7th two-way stop formula Solenoid ball valve, the second remotely control overflow valve and cooler according to
Secondary be arranged on the first return line, the 8th two-way stop formula Solenoid ball valve and lowpressure stream gauge set gradually
On the second return line, between the P mouth of tested steering gear and the second oil return branch road, it is provided with the 3rd oil return pipe
Road, the 9th two-way stop formula Solenoid ball valve is arranged on the 3rd return line, the A mouth of tested steering gear with
It is provided with the first working oil path, the 3rd two-way stop formula Solenoid ball valve between first three-position four-way electromagnetic directional valve
It is successively set in the first working oil path with the first two-way stop formula Solenoid ball valve, the B mouth of tested steering gear
It is provided with the second working oil path, the 4th two-way stop formula electromagnetic ball and the first three-position four-way electromagnetic directional valve between
Valve and the second two-way stop formula Solenoid ball valve are successively set in the second working oil path, the first working oil path with
It is provided with the first bridge-type analog loading oil circuit and the second bridge-type analog loading oil circuit between second working oil path, the
One check valve and the second check valve forward direction are oppositely arranged on the first bridge-type analog loading oil circuit, and the 3rd is unidirectional
Valve and the 4th check valve are reversely oppositely arranged on the second bridge-type analog loading oil circuit, and the first bridge-type analog adds
Carry and be provided with the 3rd bridge-type analog loading oil circuit between oil circuit and the second bridge-type analog loading oil circuit, first is long-range
Overflow valve and second flowmeter is controlled to be arranged on the 3rd bridge-type analog loading oil circuit, the P of tested steering gear
Mouth, A mouth, B mouth and T mouth be sequentially respectively arranged with first pressure sensor, second pressure sensor,
Three pressure transducers and the 4th pressure transducer, the pump oil end of the 3rd motor pump group and the second 3-position 4-way electricity
Magnetic reversal valve connects, and the 6th pressure transducer is arranged at the pump oil end of the 3rd motor pump group, the 3rd electric-motor pump
It is provided with the 3rd oil return branch road, the 3rd remotely control overflow valve is arranged on the 3rd between the pump oil end of group and fuel tank
On oil return branch road, it is provided with the first oil cylinder operating mode between the second three-position four-way electromagnetic directional valve and the first oil cylinder and adds
Carry oil circuit and the second oil cylinder operating mode loading oil circuit, the first one-way throttle valve is arranged on the first oil cylinder operating mode and loads
On oil circuit, the second one-way throttle valve is arranged on the second oil cylinder operating mode loading oil circuit, the second oil cylinder and first
Oil cylinder synchronized links, are connected with the first loading pipeline, the second oil between the second oil cylinder and the first working oil path
It is connected with the second loading pipeline, the 5th two-way stop formula Solenoid ball valve setting between cylinder and the second working oil path
Load on pipeline first, the 6th two-way stop formula Solenoid ball valve is arranged on the second loading pipeline.
Wherein, described first motor pump group, described second motor pump group and described 3rd motor pump group are divided equally
Do not include oil filter, stop valve, manual variable pump and the tubular type check valve sequentially arranging.
After technique scheme, the invention has the advantages that compared with the prior art,：
All-hydraulic steering gear test system of the present invention, including fuel tank, motor pumping system, pressure and
Flow control valve system, temperature control heating system, filtration system, circulating cooling system, oil circuit switching control
Module, steering power load-on module, bridge-type analog load-on module, oil cylinder operating mode load-on module, sensor
Data acquisition module, electric-control system and computer digital animation center, it passes through oil circuit switching control module
Carry out multiple oil circuit switching controls, can achieve to load sensing type steering gear and other equally can type turn
To the test of device, test event species is more complete, slides including electronic-controlled power steering performance test, terminal sense terminal
Move test, middle position reply test, pressure loss test, endosmosis test leakage examination, flow change rate test, people
Power turns to the test events such as volumetric efficiency, road feel test, disclosure satisfy that both at home and abroad to all-hydraulic steering gear
Test request.
Brief description
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is the system structural texture schematic diagram of the present invention.
Fig. 2 is the oil path structure structural representation of the present invention.
Fig. 3 is the assembly structural texture schematic diagram of the present invention.
In figure, 2-1,2,3：Remotely control overflow valve；3：Tubular type check valve；4：Tested steering gear；
5-1、2：Effusion meter；6：Two two electric change valves；7-1、2、3、4、5、6、7、8、9：
Two-way stop formula Solenoid ball valve；8-1、2：Three-position four-way electromagnetic directional valve；9：Fuel tank；10：Thermometer；
11：Moment of torsion rotating speed angel measuring instrument；12：Servomotor；13-1、2：Two-bit triplet solenoid directional control valve；
14-1、2、3、4：Check valve；15：Cooler；16：Oil filter；17：Heater；18-1、2：
One-way throttle valve；19-1、2：Oil cylinder；20：Temperature control heating system；21：Change speed gear box；22：Limit turns round device；
23-1、2、3、4、5、6：Pressure transducer；24：Pressure-gradient control valve；25：Flow control valve；26：Low
Pressure type flowmeter；27-1、2、3：Motor pump group；28：Oil cylinder operating mode load-on module；29：Steering power
Load-on module；30：Oil circuit switching control module；31：Bridge-type analog load-on module；32：Circulating cooling
System；33-1、2、3：Oil return branch road；34-1、2、3：Return line；35-1、2：Working oil path；
36-1、2、3：Bridge-type analog loading oil circuit；37-1、2：Oil cylinder operating mode loading oil circuit；38-1、2：
Load pipeline.
Specific embodiment
Described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Embodiment, as shown in Fig. 1 to Fig. 3：
As shown in figure 1, a kind of all-hydraulic steering gear test system, including fuel tank 9, motor pumping system, pressure
Power and flow control valve system, temperature control heating system 20, filtration system, circulating cooling system 32, oil circuit
Switching control module 30, steering power load-on module 29, bridge-type analog load-on module 31, oil cylinder operating mode add
Carry module 28, sensor data acquisition module, electric-control system and computer digital animation center.
As depicted in figs. 1 and 2, described motor pumping system includes the first motor pump group 27-1, the second motor
Pump group 27-2 and the 3rd motor pump group 27-3, the wherein first motor pump group 27-1, the second motor pump group 27-2
The oil filter that respectively includes sequentially arranging with described 3rd motor pump group 27-3, stop valve, manual variable
Pump and tubular type check valve.It is long-range that described pressure and flow control valve system include flow control valve 25, first
Control overflow valve 2-1, the second remotely control overflow valve 2-2, the 3rd remotely control overflow valve 2-3, the 4th
Remotely control overflow valve 2-4, the first two-way stop formula Solenoid ball valve 7-1, the second two-way stop formula electromagnetic ball
Valve 7-2, the 3rd two-way stop formula Solenoid ball valve 7-3, the 4th two-way stop formula Solenoid ball valve 7-4, the 5th
Two-way stop formula Solenoid ball valve 7-5, the 6th two-way stop formula Solenoid ball valve 7-6, the 7th two-way stop formula electricity
Magnetic ball valve 7-7, the 8th two-way stop formula Solenoid ball valve 7-8 and the 9th two-way stop formula Solenoid ball valve 7-9,
Described temperature control heating system 20 includes heater 17 and thermometer 10, and described filtration system includes oil filter
16, described circulating cooling system 32 includes cooler 15, and described oil circuit switching control module 30 includes
One or two three-way solenoid valve 13-1, the second two-bit triplet solenoid directional control valve 13-2, two two-way electromagnetism
Reversal valve 6, pressure-gradient control valve 24, the first three-position four-way electromagnetic directional valve 8-1 and the second 3-position 4-way electromagnetism change
To valve 8-2, described steering power load-on module 29 includes servomotor 12, limit turns round device 22, change speed gear box
21 and moment of torsion rotating speed angel measuring instrument 11, described bridge-type analog load-on module 31 includes the first check valve
14-1, the second check valve 14-2, the 3rd check valve 14-3 and the 4th check valve 14-4, described oil cylinder work
Condition load-on module 28 includes the first oil cylinder 19-1, the second oil cylinder 19-2, the first one-way throttle valve 18-1,
Second one-way throttle valve 18-2, described sensor data acquisition module include first flowmeter 5-1, second
Effusion meter 5-2, lowpressure stream gauge 26, first pressure sensor 23-1, second pressure sensor 23-2,
3rd pressure transducer 23-3, the 4th pressure transducer 23-4, the 5th pressure transducer 23-5 and the 6th
Pressure transducer 23-6.
As shown in Figures 2 and 3, servomotor 12, limit turn round device 22, change speed gear box 32 and moment of torsion rotating speed angle
Degree measuring instrument 11 sequentially arranges and is connected to the steering power input of tested steering gear 4, the first electric-motor pump
The oil inlet end of group 27-1, the second motor pump group 27-2 and the 3rd motor pump group 27-3 is respectively with fuel tank 9 even
Connect, the pump oil end of the first motor pump group 27-1 and the second motor pump group 27-2 and the first two-bit triplet electromagnetism
Reversal valve 13-1 connects, the first fuel-displaced branch road of the first two-bit triplet solenoid directional control valve 13-1 and second liang
Position three-way solenoid valve 13-2 connects, second fuel-displaced of the first two-bit triplet solenoid directional control valve 13-1
Road is connected with the first three-position four-way electromagnetic directional valve 8-1, and the of the second two-bit triplet solenoid directional control valve 13-2
One fuel-displaced branch road is connected with two two electric change valves 6, the second two-bit triplet solenoid directional control valve 13-2's
Second fuel-displaced branch road is connected with the P mouth of tested steering gear 4, and first flowmeter 5-1 is arranged on the second two
On the second fuel-displaced branch road of three-way solenoid valve 13-2, two two electric change valves 6 and pressure-gradient control valve 24
Connect, the CF mouth of pressure-gradient control valve 24 is connected to the second two-bit triplet solenoid directional control valve by tubular type check valve 3
On the second fuel-displaced branch road of 13-2, the LS mouth of pressure-gradient control valve 24 is connected with the control mouth of tested steering gear 4,
The LS mouth that 5th pressure transducer 23-5 is arranged on pressure-gradient control valve 24 is connected with the control mouth of tested steering gear 4
Oil circuit on, the oil return opening of pressure-gradient control valve 24 is connected with fuel tank 9 by the first oil return branch road 33-1, first
Three-position four-way electromagnetic directional valve 8-1 is connected with fuel tank 9 by the second oil return branch road 33-2, oil filter 16
It is arranged on the second oil return branch road 33-2, flow control valve 25 is arranged at the pump of the first motor pump group 27-1
Between oily end and the first oil return branch road 33-1, the 4th remotely control overflow valve 2-4 is arranged at the second electric-motor pump
Between the pump oil end of group 27-2 and the second oil return branch road 33-2, heater 17 and thermometer 10 are arranged at
In fuel tank 9, between the T mouth of tested steering gear 4 and the second oil return branch road 33-2, it is provided with the first return line
34-1 and the second return line 34-2, the 7th two-way stop formula Solenoid ball valve 7-7, the second remotely control are overflow
Stream valve 2-2 and cooler 15 are successively set on the first return line 34-1, the 8th two-way stop formula electricity
Magnetic ball valve 7-8 and lowpressure stream gauge 26 are successively set on the second return line 34-2, tested steering gear 4
P mouth and the second oil return branch road 33-2 between be provided with the 3rd return line 34-3, the 9th two-way stop formula electricity
Magnetic ball valve 7-9 is arranged on the 3rd return line 34-3, the A mouth of tested steering gear 4 and the one or three four
It is provided with the first working oil path 35-1, the 3rd two-way stop formula Solenoid ball valve 7-3 between electric change valve 8-1
It is successively set in the first working oil path 35-1 with the first two-way stop formula Solenoid ball valve 7-1, tested steering
It is provided with the second working oil path 35-2 between the B mouth of device 4 and the first three-position four-way electromagnetic directional valve 8-1, the
Four two-way stop formula Solenoid ball valve 7-4 and the second two-way stop formula Solenoid ball valve 7-2 are successively set on second
In working oil path 35-2, between the first working oil path 35-1 and the second working oil path 35-2, it is provided with the first bridge
Formula simulation loading oil circuit 36-1 and the second bridge-type analog loading oil circuit 36-2, the first check valve 14-1 and
Two check valve 14-2 forward directions are oppositely arranged on the first bridge-type analog loading oil circuit 36-1, the 3rd check valve
14-3 and the 4th check valve 14-4 is reversely oppositely arranged on the second bridge-type analog loading oil circuit 36-2, the
It is provided with the 3rd bridge-type between one bridge-type analog loading oil circuit 36-1 and the second bridge-type analog loading oil circuit 36-2
Simulation loading oil circuit 36-3, the first remotely control overflow valve 2-1 and second flowmeter 5-2 are arranged on the 3rd
On bridge-type analog loading oil circuit 36-3, the P mouth of tested steering gear 4, A mouth, B mouth and T mouth sequentially divide
It is not provided with first pressure sensor 23-1, second pressure sensor 23-2, the 3rd pressure transducer 23-3
And the 4th pressure transducer 23-4, the pump oil end of the 3rd motor pump group 27-3 is changed with the second 3-position 4-way electromagnetism
Connect to valve 8-2, the 6th pressure transducer 23-6 is arranged at the pump oil end of the 3rd motor pump group 27-3,
It is provided with the 3rd oil return branch road 33-3, the 3rd is long-range between the pump oil end of the 3rd motor pump group 27-3 and fuel tank 9
Overflow valve 2-3 is controlled to be arranged on the 3rd oil return branch road 33-3, the second three-position four-way electromagnetic directional valve 8-2
It is provided with the first oil cylinder operating mode loading oil circuit 37-1 and the second oil cylinder operating mode loads and the first oil cylinder 19-1 between
Oil circuit 37-2, the first one-way throttle valve 18-1 are arranged on the first oil cylinder operating mode loading oil circuit 37-1, the
Two one-way throttle valve 18-2 are arranged on the second oil cylinder operating mode loading oil circuit 37-2, the second oil cylinder 19-2 with
First oil cylinder 19-1 synchronized links, are connected between the second oil cylinder 19-2 and the first working oil path 35-1
One loading pipeline 38-1, is connected with the second loading between the second oil cylinder 19-2 and the second working oil path 35-2
Pipeline 38-2, the 5th two-way stop formula Solenoid ball valve 7-5 is arranged on the first loading pipeline 38-1, and the 6th
Two-way stop formula Solenoid ball valve 7-6 is arranged on the second loading pipeline 38-2.
In test, its test condition sets and relevant data acquisition this all-hydraulic steering gear test system
Realize as follows：
1. flow set：Can be by adjusting the row of the first motor pump group 27-1 and the second motor pump group 27-2
Amount and double open, singly open acquisition different flow it is also possible to flow is adjusted by flow control valve 25, by the
Flow meters 5-1, second flowmeter 5-2 and lowpressure stream gauge 26 are gathering data on flows.
2. pressure sets：By the 4th remotely control overflow valve 2-4 regulating system pressure, remote by second
Process control overflow valve 2-2 adjusts the back pressure on oil return circuit, is adjusted by the first remotely control overflow valve 2-1
The on-load pressure of section simulation steering gear load, adjusts oil cylinder by the 3rd remotely control overflow valve 2-3 and loads
The system pressure of system, by first pressure sensor 23-1, second pressure sensor 23-2, the 3rd pressure
Force transducer 23-3, the 4th pressure transducer 23-4, May Day pressure transducer 23-5, the 6th pressure pass
Sensor 23-6 is gathering pressure data.
3. temperature control：Temperature control heating system 20 measures when oil temperature is less than design temperature and automatically turns on heating
Device 17, is automatically switched off heater 17 during higher than design temperature, mixing cooler 15 can make Oil-temperature control exist
Set in interval.
4. inputted by the changeable servomotor 12 of change speed gear box 21 or manual steering input, by moment of torsion
Tacho-angle measuring instrument 11 is gathering moment of torsion, rotating speed and the sliding angle of tested steering gear 4.
The test event of this all-hydraulic steering gear test system and method are as follows：
1. load sensing type steering gear test：The first two-bit triplet solenoid directional control valve 13-1 is controlled to be in left position,
Second two-bit triplet solenoid directional control valve 13-2 is in left position, and two two electric change valves 6 are in right position,
The LS feedback oil circuit of tested steering gear 4 is connected with the LS hydraulic fluid port of pressure-gradient control valve 24, realizes load sensing type
Every test of steering gear.
2. other types steering gear test：The first two-bit triplet solenoid directional control valve 13-1 is controlled to be in left position,
Second two-bit triplet solenoid directional control valve 13-2 is in right position, and two two electric change valves 6 are in left position,
Realize every test (in addition to road feel test event) of other types steering gear.
3. road feel test：The first two-bit triplet solenoid directional control valve 13-1 is controlled to be in right position, the second two three
Electric change valve 13-2 is in right position, and two two electric change valves 6 are in left position, first two-way section
Only formula Solenoid ball valve (this valve is normally closed type, and energising is opened, and power-off is closed) 7-1, the second two-way stop formula
Solenoid ball valve 7-2 "on" position, the 3rd two-way stop formula Solenoid ball valve 7-3, the 4th two-way stop formula electromagnetism
Ball valve 7-4 "on" position, by controlling the first three-position four-way electromagnetic directional valve 8-1 and regulation first long-range
Overflow valve 2-1 is controlled to realize the road feel sensitivity test of steering gear.
4. oil cylinder loads test：Control the 5th two-way stop formula Solenoid ball valve 7-5, the 6th two-way stop formula electricity
Magnetic ball valve 7-6 is energized, the first two-way stop formula Solenoid ball valve 7-1, the second two-way stop formula Solenoid ball valve
7-2 power-off, the first remotely control overflow valve 2-1 pressure is adjusted to maximum, opens the 3rd motor pump group 27-3
To the first oil cylinder 19-1 fuel feeding, realize the loading of tested steering gear 4.Set the 3rd remotely control overflow valve
2-3 can protect the maximum pressure of cylinder system, adjust the second three-position four-way electromagnetic directional valve 8-2 and change oil cylinder
Loading direction, the first one-way throttle valve 18-1 and the second one-way throttle valve 18-2 adjust oil cylinder both sides respectively
Pressure reduction changing oil cylinder load, oil cylinder stroke can test out terminal performance and middle position to terminal afterwards
Recoverability, with actually used operating mode closely, result of the test is relatively reliable for this loading method advantage.
5. mechanical resistance square test：P, T, A, B hydraulic fluid port of tested steering gear 4 is opened wide and air communication,
Change speed gear box 21 switches to manual steering pattern, and in the case of obstructed oil, test rotating torque is mechanical resistance square.
6. performing leak test：Adjust the second remotely control overflow valve 2-2, by tested steering gear 4 internal pressure
Raise and test its sealing.
7. terminal sensing examination：3rd two-way stop formula Solenoid ball valve 7-3, the 4th two-way stop formula Solenoid ball valve
7-4 power-off, change speed gear box is cut 21 and is switched to manpower rotation mode, control direction disk rotating speed<During 5r/min,
The accessible maximum torque value of measurement is terminal moment of torsion.
8. terminal sliding test：3rd two-way stop formula Solenoid ball valve 7-3, the 4th two-way stop formula electromagnetic ball
Valve 7-4 power-off, change speed gear box 21 switches to servomotor 12 rotation mode, adjusts the moment of torsion that limit turns round device 22,
Under setting moment of torsion, the rotating speed of tested steering gear 4 is terminal sliding rotating speed.
9. middle position reset test：3rd two-way stop formula Solenoid ball valve 7-3, the 4th two-way stop formula electromagnetic ball
Valve 7-4 power-off, manpower steering wheel rotation, observe first pressure sensor 23-1 after release direction disk external force
Can pressure value drop back to original state；
10. electronic-controlled power steering performance test：Different types of all-hydraulic steering gear must follow at the 1st point and the 2nd point
The setting of described test event, the 3rd two-way stop formula Solenoid ball valve 7-3, the 4th two-way stop formula electromagnetic ball
Valve 7-4 be energized, the first two-way stop formula Solenoid ball valve 7-1, the second two-way stop formula Solenoid ball valve 7-2,
5th two-way stop formula Solenoid ball valve 7-5, the 6th two-way stop formula Solenoid ball valve 7-6 power-off, servomotor
The 12 tested steering gears 4 of drive rotate, and measurement moment of torsion, rotating speed, flow and pressure value everywhere, by sky
Carrying and load can be with performance parameters such as test pressure loss, pressure oscillation, flow change rates.
11. load sensing type middle position flow performance tests：Load sensing type steering gear must be followed described in the 5th point
The setting of test event, the 7th two-way stop formula Solenoid ball valve 7-7 power-off, the 8th two-way stop formula electromagnetism
Ball valve 7-8 is energized, and tests tested steering gear 4 in middle position by the lowpressure stream gauge 26 of high accuracy small-range
When T mouth leakage rate, in being tested out by first pressure sensor 23-1, the 5th pressure transducer 23-5
The P mouth of tested steering gear 4 and the LS mouth pressure of pressure-gradient control valve 24 during position.
12. steering wheel maximum speed performance tests：By Flow-rate adjustment to sets requirement, change speed gear box 21 switches
To servomotor 12 rotation mode, adjust the rotating speed of servomotor 12, before torque value significantly increases
Critical speed is maximum speed performance.
13. manual steering volumetric efficiency performance tests：Close the first motor pump group 27-1 and the second electric-motor pump
Group 27-2, the 9th two-way stop formula Solenoid ball valve 7-9 energising, change speed gear box 21 switches to manual steering pattern,
Manpower steering wheel rotation, second flowmeter 5-2 shows that the ratio between reading and theoretical displacement and rotating speed is
For manual steering volumetric efficiency.
This all-hydraulic steering gear test system carries out multiple oil circuit switching controls by oil circuit switching control module 30
System, can achieve to load sensing type steering gear and other be equally capable of the test of type steering gear, test item
Mesh species is more complete, replys and surveys including electronic-controlled power steering performance test, terminal sense terminal sliding test, middle position
Examination, pressure loss test, endosmosis test leakage examination, flow change rate test, manual steering volumetric efficiency, road
The test events such as sensing examination, disclosure satisfy that the test request both at home and abroad to all-hydraulic steering gear.
The above is only the better embodiment of the present invention, therefore described in all scopes according to present patent application
Construction, the equivalence changes done of feature and principle or modification, be all included in present patent application scope
Interior.
Claims (2)
1. a kind of all-hydraulic steering gear test system it is characterised in that：Including fuel tank (9), electric-motor pump system
System, pressure and flow control valve system, temperature control heating system (20), filtration system, circulating cooling system
(32), oil circuit switching control module (30), steering power load-on module (29), bridge-type analog load mould
Block (31), oil cylinder operating mode load-on module (28), sensor data acquisition module, electric-control system and calculating
Machine data processing centre；
Described motor pumping system includes the first motor pump group (27-1), the second motor pump group (27-2) and
Three motor pump groups (27-3), described pressure and flow control valve system include flow control valve (25),
One remotely control overflow valve (2-1), the second remotely control overflow valve (2-2), the 3rd remotely control overflow
Valve (2-3), the 4th remotely control overflow valve (2-4), the first two-way stop formula Solenoid ball valve (7-1),
Second two-way stop formula Solenoid ball valve (7-2), the 3rd two-way stop formula Solenoid ball valve (7-3), the 4th pair
To cut-off type Solenoid ball valve (7-4), the 5th two-way stop formula Solenoid ball valve (7-5), the 6th two-way stop
Formula Solenoid ball valve (7-6), the 7th two-way stop formula Solenoid ball valve (7-7), the 8th two-way stop formula electromagnetism
Ball valve (7-8) and the 9th two-way stop formula Solenoid ball valve (7-9), described temperature control heating system (20) bag
Include heater (17) and thermometer (10), described filtration system includes oil filter (16), described circulation
Cooling system (32) includes cooler (15), and described oil circuit switching control module (30) includes first liang
Position three-way solenoid valve (13-1), the second two-bit triplet solenoid directional control valve (13-2), two two energisings
Magnetic reversal valve (6), pressure-gradient control valve (24), the first three-position four-way electromagnetic directional valve (8-1) and the two or three
Four-way electromagnetic reversing valve (8-2), described steering power load-on module (29) inclusion servomotor (12),
Limit turns round device (22), change speed gear box (21) and moment of torsion rotating speed angel measuring instrument (11), and described bridge-type analog adds
Carry module (31) and include the first check valve (14-1), the second check valve (14-2), the 3rd check valve (14-3)
With the 4th check valve (14-4), described oil cylinder operating mode load-on module (28) include the first oil cylinder (19-1),
Second oil cylinder (19-2), the first one-way throttle valve (18-1), the second one-way throttle valve (18-2), described
Sensor data acquisition module includes first flowmeter (5-1), second flowmeter (5-2), low pressure flow
Meter (26), first pressure sensor (23-1), second pressure sensor (23-2), the 3rd pressure sensing
Device (23-3), the 4th pressure transducer (23-4), the 5th pressure transducer (23-5) and the 6th pressure
Sensor (23-6)；
Servomotor (12), limit turn round device (22), change speed gear box (21) and moment of torsion rotating speed angel measuring instrument (11)
Sequentially arrange and be connected to the steering power input of tested steering gear (4), the first motor pump group (27-1),
The oil inlet end of the second motor pump group (27-2) and the 3rd motor pump group (27-3) is respectively with fuel tank (9) even
Connect, the pump oil end of the first motor pump group (27-1) and the second motor pump group (27-2) with the first two three
Electric change valve (13-1) connects, and the first of the first two-bit triplet solenoid directional control valve (13-1) is fuel-displaced
Branch road is connected with the second two-bit triplet solenoid directional control valve (13-2), the first two-bit triplet solenoid directional control valve
(13-1) the second fuel-displaced branch road is connected with the first three-position four-way electromagnetic directional valve (8-1), the second two
First fuel-displaced branch road of three-way solenoid valve (13-2) is connected with two two electric change valves (6),
Second fuel-displaced branch road of the second two-bit triplet solenoid directional control valve (13-2) and the P mouth of tested steering gear (4)
Connect, what first flowmeter (5-1) was arranged on the second two-bit triplet solenoid directional control valve (13-2) second goes out
On oily branch road, two two electric change valves (6) are connected with pressure-gradient control valve (24), pressure-gradient control valve (24)
CF mouth goes out by tubular type check valve (3) is connected to the second two-bit triplet solenoid directional control valve (13-2) second
On oily branch road, the LS mouth of pressure-gradient control valve (24) is connected with the control mouth of tested steering gear (4), the 5th pressure
Force transducer (23-5) is arranged on the LS mouth of pressure-gradient control valve (24) and the control mouth of tested steering gear (4)
On the oil circuit connecting, the oil return opening of pressure-gradient control valve (24) passes through the first oil return branch road (33-1) and fuel tank (9)
Connect, the first three-position four-way electromagnetic directional valve (8-1) passes through the second oil return branch road (33-2) and fuel tank (9)
Connect, oil filter (16) is arranged on the second oil return branch road (33-2), and flow control valve (25) sets
It is placed between the pump oil end of the first motor pump group (27-1) and the first oil return branch road (33-1), the 4th is remote
Process control overflow valve (2-4) is arranged at pump oil end and the second oil return branch road of the second motor pump group (27-2)
(33-2), between, heater (17) and thermometer (10) are arranged in fuel tank (9), tested steering
It is provided with the first return line (34-1) and between the T mouth of device (4) and the second oil return branch road (33-2)
Two return lines (34-2), the 7th two-way stop formula Solenoid ball valve (7-7), the second remotely control overflow valve
(2-2) and cooler (15) is successively set on the first return line (34-1), the 8th two-way stop
Formula Solenoid ball valve (7-8) and lowpressure stream gauge (26) are successively set on the second return line (34-2),
It is provided with the 3rd return line (34-3) between the P mouth of tested steering gear (4) and the second oil return branch road (33-2),
9th two-way stop formula Solenoid ball valve (7-9) is arranged on the 3rd return line (34-3), tested steering
It is provided with the first working oil path (35-1) between the A mouth of device (4) and the first three-position four-way electromagnetic directional valve (8-1),
3rd two-way stop formula Solenoid ball valve (7-3) and the first two-way stop formula Solenoid ball valve (7-1) set successively
Put in the first working oil path (35-1), the B mouth of tested steering gear (4) and the first 3-position 4-way electromagnetism
It is provided with the second working oil path (35-2), the 4th two-way stop formula Solenoid ball valve (7-4) between reversal valve (8-1)
It is successively set in the second working oil path (35-2) with the second two-way stop formula Solenoid ball valve (7-2), the
It is provided with the first bridge-type analog between one working oil path (35-1) and the second working oil path (35-2) and load oil
Road (36-1) and the second bridge-type analog loading oil circuit (36-2), the first check valve (14-1) and the second list
It is oppositely arranged on the first bridge-type analog loading oil circuit (36-1) to valve (14-2) forward direction, the 3rd is unidirectional
Valve (14-3) and the 4th check valve (14-4) are reversely oppositely arranged in the second bridge-type analog loading oil circuit (36-2)
On, between the first bridge-type analog loading oil circuit (36-1) and the second bridge-type analog loading oil circuit (36-2)
It is provided with the 3rd bridge-type analog loading oil circuit (36-3), the first remotely control overflow valve (2-1) and second
Gauge (5-2) is arranged on the 3rd bridge-type analog loading oil circuit (36-3), the P of tested steering gear (4)
Mouth, A mouth, B mouth and T mouth are sequentially respectively arranged with first pressure sensor (23-1), second pressure passes
Sensor (23-2), the 3rd pressure transducer (23-3) and the 4th pressure transducer (23-4), the 3rd electricity
The pump oil end of pump group (27-3) is connected with the second three-position four-way electromagnetic directional valve (8-2), the 6th pressure
Sensor (23-6) is arranged at the pump oil end of the 3rd motor pump group (27-3), the 3rd motor pump group (27-3)
Pump oil end and fuel tank (9) between be provided with the 3rd oil return branch road (33-3), the 3rd remotely control overflow valve
(2-3) it is arranged on the 3rd oil return branch road (33-3), the second three-position four-way electromagnetic directional valve (8-2)
It is provided with the first oil cylinder operating mode loading oil circuit (37-1) and the second oil cylinder work and the first oil cylinder (19-1) between
Condition loading oil circuit (37-2), the first one-way throttle valve (18-1) is arranged on the first oil cylinder operating mode loading oil circuit
(37-1), on, the second one-way throttle valve (18-2) is arranged on the second oil cylinder operating mode loading oil circuit (37-2)
On, the second oil cylinder (19-2) and the first oil cylinder (19-1) synchronized links, the second oil cylinder (19-2) with
It is connected with the first loading pipeline (38-1), the second oil cylinder (19-2) between first working oil path (35-1)
It is connected with the second loading pipeline (38-2), the 5th two-way stop formula and the second working oil path (35-2) between
Solenoid ball valve (7-5) is arranged on the first loading pipeline (38-1), the 6th two-way stop formula Solenoid ball valve
(7-6) it is arranged on the second loading pipeline (38-2).
2. all-hydraulic steering gear test system according to claim 1 it is characterised in that：Described
One motor pump group (27-1), described second motor pump group (27-2) and described 3rd motor pump group (27-3)
Respectively include oil filter, stop valve, manual variable pump and the tubular type check valve sequentially arranging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410697917.1A CN104483111B (en) | 2014-11-27 | 2014-11-27 | All-hydraulic steering gear test system |
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| CN201410697917.1A CN104483111B (en) | 2014-11-27 | 2014-11-27 | All-hydraulic steering gear test system |
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| CN104483111B true CN104483111B (en) | 2017-02-08 |
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| CN105134692B (en) * | 2015-09-29 | 2017-07-04 | 芜湖中意液压科技股份有限责任公司 | The multifunctional test system of all-hydraulic steering gear |
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| CN112855664A (en) * | 2019-11-27 | 2021-05-28 | 天津大学青岛海洋技术研究院 | Test system for testing hydraulic pump by measuring quality |
| CN113606206B (en) * | 2021-05-26 | 2022-04-29 | 广州嘉泰液压机电有限公司 | Hydraulic test oil source system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672844A (en) * | 1986-03-26 | 1987-06-16 | Schenck Pegasus | Testing apparatus with improved follower mechanism |
| CN201540206U (en) * | 2009-10-20 | 2010-08-04 | 重庆理工大学 | Test control system of automobile steering system performance |
| KR101275730B1 (en) * | 2011-12-26 | 2013-06-17 | 장세진 | Tester for power steering gear |
| CN104132822A (en) * | 2013-05-03 | 2014-11-05 | 兰溪市鸿成汽车零部件有限公司 | Full-hydraulic power steering gear performance test system |
-
2014
- 2014-11-27 CN CN201410697917.1A patent/CN104483111B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672844A (en) * | 1986-03-26 | 1987-06-16 | Schenck Pegasus | Testing apparatus with improved follower mechanism |
| CN201540206U (en) * | 2009-10-20 | 2010-08-04 | 重庆理工大学 | Test control system of automobile steering system performance |
| KR101275730B1 (en) * | 2011-12-26 | 2013-06-17 | 장세진 | Tester for power steering gear |
| CN104132822A (en) * | 2013-05-03 | 2014-11-05 | 兰溪市鸿成汽车零部件有限公司 | Full-hydraulic power steering gear performance test system |
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