CN103149038B - Vehicle mechanical and hydraulic dual-flow transmission steering device test bench and system - Google Patents
Vehicle mechanical and hydraulic dual-flow transmission steering device test bench and system Download PDFInfo
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- CN103149038B CN103149038B CN201310048791.0A CN201310048791A CN103149038B CN 103149038 B CN103149038 B CN 103149038B CN 201310048791 A CN201310048791 A CN 201310048791A CN 103149038 B CN103149038 B CN 103149038B
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- steering gear
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- path transmission
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Abstract
The invention relates to a vehicle mechanical and hydraulic dual-flow transmission steering device test bench and system, aiming at supplying a gap that a special test bench does not exist in the prior art. The test bench and a mechanical and hydraulic dual-flow transmission steering device to be tested form a transmission system for testing. A test control device is used for controlling the test bench and the mechanical and hydraulic dual-flow transmission steering device to be tested and acquiring relevant sensor parameters. The test bench and the test system can be used for testing the mechanical and hydraulic dual-flow transmission steering device, have a great significance in research on design, dynamic characteristics and performance tests of the mechanical and hydraulic dual-flow transmission steering device, and have a wide significance in technical development of vehicles such as armored vehicles, trailers and engineering machines.
Description
Technical field
The present invention relates to a kind of vehicle mechanical hydraulic pressure split path transmission steering gear testing table and pilot system.
Background technology
Along with the increase of crawler tractor power and the raising of the speed of a motor vehicle, traditional mechanical-type steering engine structure can not meet it and travel maneuverability and the more and more higher requirement of work efficiency.The regulation turning radius Limited Number that endless-track vehicle tradition mechanical type steering mechanism realizes, turn to that efficiency is low, work not steadily, wearing and tearing thermal value is large, seriously constrains the raising of endless-track vehicle steering behaviour.
In order to overcome the deficiency of endless-track vehicle conventional steering mechanism, recent domestic launches the research to mechanical-hydraulic split path transmission steering gear.Various Experimental Establishment and measuring and controlling equipment, particularly the shortage of mechanical-hydraulic split path transmission steering gear specialty testing equipment, brings very large constraint to the exploitation of mechanical-hydraulic split path transmission steering gear, parameter matching and optimization and performance test.Build a set of mechanical-hydraulic split path transmission steering gear testing table for the research design feature of this device, performance parameter and Changing Pattern, analyze the dynamic perfromance of steering procedure, improve endless-track vehicle and turn to maneuverability to seem very necessary.
Summary of the invention
The object of this invention is to provide a kind of vehicle mechanical hydraulic pressure split path transmission steering gear test-bed and pilot system, to make up in prior art the defect not having Special test stand.
For achieving the above object, the solution of the present invention comprises:
Vehicle mechanical hydraulic pressure split path transmission steering gear test-bed, comprises the steering gear installation position for make-up machinery hydraulic pressure split path transmission steering gear, and steering gear installation position connects a road machinery input, a road hydraulic pressure input and road machinery and exports; A described road machinery input connects and composes in turn primarily of engine, master clutch, transfer gear and wheel box, transfer gear comprises two output terminals, first output terminal is used for a described road machinery input, be connected with wheel box, second output terminal is used for a described road hydraulic pressure input, and a described road hydraulic pressure input is formed in turn primarily of the second output terminal of transfer gear, variable output pump, fixed displacement motor; A described road machinery exports and connects and composes in turn primarily of raising speed case and loading motor; Between described master clutch and transfer gear, between steering gear installation position and raising speed case, between the second output terminal of transfer gear and variable output pump, between fixed displacement motor and steering gear installation position, be equipped with torque and speed sensors.
Vehicle mechanical hydraulic pressure split path transmission steering gear pilot system, comprise vehicle mechanical hydraulic pressure split path transmission steering gear test-bed and experimental control device, described vehicle mechanical hydraulic pressure split path transmission steering gear test-bed, comprise the steering gear installation position for make-up machinery hydraulic pressure split path transmission steering gear, steering gear installation position connects a road machinery input, a road hydraulic pressure input and road machinery and exports; A described road machinery input connects and composes in turn primarily of engine, master clutch, transfer gear and wheel box, transfer gear comprises two output terminals, first output terminal is used for a described road machinery input, be connected with wheel box, second output terminal is used for a described road hydraulic pressure input, and a described road hydraulic pressure input is formed in turn primarily of the second output terminal of transfer gear, variable output pump, fixed displacement motor; A described road machinery exports and connects and composes in turn primarily of raising speed case and loading motor; Between described master clutch and transfer gear, between steering gear installation position and raising speed case, between the second output terminal of transfer gear and variable output pump, between fixed displacement motor and steering gear installation position, be equipped with torque and speed sensors; Described experimental control device, comprise entire car controller and pedestal control system, entire car controller for controlling engine, mechanical-hydraulic split path transmission steering gear, variable output pump and wheel box, entire car controller, master clutch, transfer gear, raising speed case and loading motor described in pedestal control system control linkage.
Described experimental control device also comprises display unit.
The present invention can test mechanical-hydraulic split path transmission steering gear, utilize transmission and the control system of existing vehicle to greatest extent, transfer gear is utilized to produce two-way input, and by a wherein road generation hydraulic power input, another road produces machine power input, so just special hydraulic power need not be set in addition again, thus enormously simplify the structure of stand, reduce design difficulty.By control system power train controlled and obtained the correlation performance parameters of power train by sensor, controlling test in real time.The research of the present invention to the design of mechanical-hydraulic split path transmission steering gear, dynamic perfromance, performance test is significant, has wide significance to the development of the vehicle technologies such as military armor vehicle, tractor, engineering machinery.
Accompanying drawing explanation
Fig. 1 is vehicle mechanical hydraulic pressure split path transmission steering gear pilot system schematic diagram;
Fig. 2, Fig. 3, Fig. 4 are vehicle mechanical hydraulic pressure split path transmission steering gear test-bed structural drawing (dot-and-dash line represents base).
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Mechanical-hydraulic split path transmission steering gear has various ways, and all at least comprise a road hydraulic pressure input, a road machinery input and a road and export, concrete structure belongs to prior art, repeats no more.The present invention can test mechanical-hydraulic split path transmission steering gear.
Pilot system embodiment
Vehicle mechanical hydraulic pressure split path transmission steering gear pilot system as shown in Figure 1, comprises vehicle mechanical hydraulic pressure split path transmission steering gear test-bed and experimental control device.Test-bed and mechanical-hydraulic split path transmission steering gear to be tested form a kinematic train tested, experimental control device, owing to controlling test-bed, mechanical-hydraulic split path transmission steering gear to be tested, gathers related sensor parameter.
Comprise vehicle mechanical hydraulic pressure split path transmission steering gear test-bed and experimental control device, vehicle mechanical hydraulic pressure split path transmission steering gear test-bed, comprise the steering gear installation position for make-up machinery hydraulic pressure split path transmission steering gear, steering gear installation position connects a road machinery input, a road hydraulic pressure input and road machinery and exports; A described road machinery input connects and composes in turn primarily of engine, master clutch, transfer gear and wheel box, transfer gear comprises two output terminals, first output terminal is used for a described road machinery input, be connected with wheel box, second output terminal is used for a described road hydraulic pressure input, and a described road hydraulic pressure input is formed in turn primarily of the second output terminal of transfer gear, variable output pump, fixed displacement motor; A described road machinery exports and connects and composes in turn primarily of raising speed case and loading motor; Between described master clutch and transfer gear, between steering gear installation position and raising speed case, between the second output terminal of transfer gear and variable output pump, between fixed displacement motor and steering gear installation position, be equipped with torque and speed sensors.
Experimental control device, comprise entire car controller and pedestal control system, entire car controller for controlling engine, mechanical-hydraulic split path transmission steering gear, variable output pump and wheel box, entire car controller, master clutch, transfer gear, raising speed case, loading motor described in pedestal control system control linkage.
The related data of the pedestal control system also testing table all parts such as each torque and speed sensors of the company of sampling.As a kind of embodiment, in order to direct viewing test process, display device can be increased, for showing gathered intermediate result etc.
The detailed process of test is as follows.
Engine prepares: install engine, arrange cold air thermostatic control system in throttle actuator, engine, clutch operating device assembly, engine motor oil thermostatic control system, engine water temperature thermostatic control system, engine exhaust system, fuel oil supply system, cooling water system, engine wiring harness etc.
Mechanical-hydraulic split path transmission steering gear prepares: install mechanical Hydraulic Double and spread dynamic steering gear, steering gear controller, steering gear integral support; Steering variable pump-fixed displacement motor hydraulic system, steering gear Hydraulic Station, hydraulic plumbing system, steering gear wire harness are set.
Transmission shaft and joint flange prepare: arrange connecting engine, transfer gear, mechanical-hydraulic split path transmission steering gear, loading motor, torque rotary speed sensor, torque protective device etc.
Loading motor prepares: install loading motor, loading motor support; Cooling system, loading motor wire harness are set.
Install, debug: as shown in Figure 2, Figure 3, Figure 4, engine 2, transfer case 11, variator 13, mechanical-hydraulic split path transmission steering gear 18, raising speed 24, steering gear 26, loading motor 30 etc. are arranged on three-dimensional adjustable support 1, throttle actuator 4, clutch operating device assembly 5 etc. are connected with engine 2, engine the first universal drive shaft 6 is connected with the transfer case 11 being arranged on transfer case and propping up seat assembly 31, engine exports and shunts through transfer case assembly: a road is through transmission shaft auxiliary support apparatus assembly 7, torque limiter 8, first universal drive shaft 9, first shaft coupling 10, second universal drive shaft 12, variator 13, 3rd universal drive shaft 14 flows into mechanical-hydraulic split path transmission steering gear mechanical input, another road second shaft coupling 32, second universal drive shaft 33, 3rd shaft coupling 34, steering variable pump 35, fixed displacement motor 15, 4th shaft coupling 16, 3rd universal drive shaft 17, 5-linked axial organ 18, the mechanical Hydraulic Double that enters accurate universal 6th shaft coupling 19 spreads dynamic steering gear hydraulic pressure input end, two-way power is coupled in mechanical-hydraulic split path transmission steering gear, coupling power is exported by mechanical-hydraulic split path transmission steering gear two ends, is all connected with two loading motors 30 respectively through the 7th shaft coupling 21, the 4th universal drive shaft 22, the 8th shaft coupling 23, raising speed case 24, the 9th shaft coupling 25, steering gear 26, the tenth shaft coupling 27, steering gear the 28, the 11 shaft coupling 29.
Adjustment engine 2, transfer gear 11, variator 13, mechanical-hydraulic split path transmission steering gear 18, raising speed case 24, steering gear 26,28, loading motor 30, universal drive shaft 9,17,22,33, the three-dimensional adjustable support of the parts such as torque protective device 8, center line height is consistent; Each controller unit is installed, arranges engine and controller wire harness, set up CAN network, connecting overall display device; Debug mechanical Hydraulic Double and spread the communication of dynamic steering gear experimental bench system.
Utilize this mechanical-hydraulic split path transmission steering gear testing table can complete following test: to carry out mechanical-hydraulic split path transmission steering gear measured performance parameter, structure optimization coupling related experiment; Verify mechanical Hydraulic Double spread each controller unit reliabilities such as dynamic steering gear controller, engine controller, loading motor controller, experiment table overhead control and systemic-function experiment; Carry out endless-track vehicle walking, steering dynamic perfromance and performance test and test with Engine Matching.
The whole control system of vehicle hydraulic mechanical stepless transmission stand is made up of entire car controller, display unit and pedestal control system.Whole-control system controls car load component working respectively by two ECU, is that ECU1 controls engine respectively; ECU2 hydraulic control mechanical stepless transmission and variable output pump-fixed displacement motor system thereof; Pedestal control system is except each automobile component of cooperation control vehicle control unit controls, control whole testing table all parts simultaneously, comprise all torque rotary speed sensors, torque limiter, transfer gear, raising speed case and loading motor etc., simultaneously also can various data, state and intermediate result etc. in the test of feedback testing rig all parts.Display unit is for showing the control situation of all parts of whole stand, ruuning situation, experimentation and experimental result etc.Whole control system composition CAN network, stand all functions all realize controlling by CAN network.
Engine provides necessary power source for pilot system; The power that dynamometer machine transmits through power train for absorbing engine, simulates the working environment of tested power train, and is that electric energy feedback is to electrical network by the power transfer of absorption; Each for test-bed mechanical part combines by torque limiter, forms the entirety that one has certain function, plays limit torsion effect simultaneously; Raising speed case realizes falling the raising speed of the final transmission of power train turning round, and the input end torque rotary speed of dynamometer machine and dynamometer machine torque characteristics are matched; Turning device makes whole testing table more symmetrical compact, reduces experiment porch and takes up an area space; Laboratory assists back-up system to provide necessary working environment for various mechanical component.
Experimental control device is primarily of the hardware devices such as industrial control computer (host computer), PLC programmable controller (slave computer), data acquisition board, various kinds of sensors, control desk, instrument cabinet, testing table onsite alarming surveillance equipment and TT&C software composition, can realize carrying out centralized control to whole testing table, test parameters monitored, gathers, show, record, analyze and chart printout, and process of the test is monitored and record.The data that experimental control device can gather comprise rotating speed, torque, pressure, flow, temperature, engine throttle opening etc.
Select engine as the power source of testing table, make as far as possible by the test situation of test specimen and real vehicle behaviour in service closest.The throttle position that engine throttle actuator sets according to main control computer, automatically regulates accelerator open degree, stablizes engine speed.Load simulating device adopts direct current generator as loader, direct current generator has two, be used for simulating endless-track vehicle work road conditions load resistance, coordinate rectified feedback unit, the dynamometer system formed has two kinds of operational modes, both may operate at generating state, and also may operate at motoring condition, process is changed automatically, and feedback meets the electric energy of electrical network feedback quality requirements completely.Meanwhile, utilize special control system to realize the transmission change of simulating vehicle power drive system power, thus improve the requirement of kinematic train test capability, the expansion scope of application.
Under the control of main control computer, direct current generator may operate in different mode of operations:
(1) permanent torque pattern.Motor under this pattern is under the adjustment of control system, and set-point and the measured value of torque compare, and the difference relatively regulates through PID, automatically its armature supply is adjusted by given control mode, change the Driving Torque of dynamometer machine, make it not change with the change of rotating speed, maintain set-point.This pattern is the basic model that this pilot system is run.
(2) permanent rotating speed pattern.The loading rotating speed of control system control direct current generator, is set value and measured value compares, and the difference relatively regulates through PID, and by given control mode self-regulation motor armature supply, the rotating speed changing dynamometer machine makes it maintain set-point.Under this pattern, namely can carry out the match test of power train and engine, performance test can be carried out to engine separately again.
(3) invariable power pattern.Control system makes the loading power of direct current generator (product of rotating speed and torque) maintain set-point.Can be used for simulating vehicle under this pattern to give it the gun operating mode.
The data information transfer of pilot system adopts the CAN communication technology, the data of host computer and slave computer is transmitted convenient, quick, reliable.Adopt this patent not only can carry out the individual event testing experiment of power train for vehicle performance and efficiency, but also the mixed performance test experiments of power train for vehicle can be carried out, simultaneously can also omnidistance steering procedure of simulating endless-track vehicle; Dynamic load can be realized, the state of cyclic operation of simulation complete machine actual condition or regulation by control program; Control system can arrange different closed loop control modes to the rotating speed of engine and dynamometer machine, torque according to different test methods, can meet the every content of the test and pilot project that specify in vehicle driveline correlation test standard completely; According to actual requirement in process of the test, as long as operating personnel press different control model buttons, the complete undisturbed of switching of various control mode; Each test volume in test and analysis result can show in real time, process, store and print.Compared with the real train test of transmission in the past, what adopt that this testing table can be simple and efficient carries out the test of various types of vehicles power drive system, saves a large amount of experimental periods and funds, is applicable to the properties test of vehicle transmission gear.
Test-bed embodiment
Test-bed by the agency of in pilot system embodiment, does not repeat them here.
Claims (3)
1. a vehicle mechanical hydraulic pressure split path transmission steering gear test-bed, it is characterized in that, comprise the steering gear installation position for make-up machinery hydraulic pressure split path transmission steering gear, steering gear installation position connects a road machinery input, a road hydraulic pressure input and road machinery and exports; A described road machinery input connects and composes in turn primarily of engine, master clutch, transfer gear and wheel box, transfer gear comprises two output terminals, first output terminal is used for a described road machinery input, be connected with wheel box, second output terminal is used for a described road hydraulic pressure input, and a described road hydraulic pressure input is formed in turn primarily of the second output terminal of transfer gear, variable output pump, fixed displacement motor; A described road machinery exports and connects and composes in turn primarily of raising speed case and loading motor; Between described master clutch and transfer gear, between steering gear installation position and raising speed case, between the second output terminal of transfer gear and variable output pump, between fixed displacement motor and steering gear installation position, be equipped with torque and speed sensors.
2. a vehicle mechanical hydraulic pressure split path transmission steering gear pilot system, it is characterized in that, comprise vehicle mechanical hydraulic pressure split path transmission steering gear test-bed and experimental control device, described vehicle mechanical hydraulic pressure split path transmission steering gear test-bed, comprise the steering gear installation position for make-up machinery hydraulic pressure split path transmission steering gear, steering gear installation position connects a road machinery input, a road hydraulic pressure input and road machinery and exports; A described road machinery input connects and composes in turn primarily of engine, master clutch, transfer gear and wheel box, transfer gear comprises two output terminals, first output terminal is used for a described road machinery input, be connected with wheel box, second output terminal is used for a described road hydraulic pressure input, and a described road hydraulic pressure input is formed in turn primarily of the second output terminal of transfer gear, variable output pump, fixed displacement motor; A described road machinery exports and connects and composes in turn primarily of raising speed case and loading motor; Between described master clutch and transfer gear, between steering gear installation position and raising speed case, between the second output terminal of transfer gear and variable output pump, between fixed displacement motor and steering gear installation position, be equipped with torque and speed sensors;
Described experimental control device, comprise entire car controller and pedestal control system, entire car controller for controlling engine, mechanical-hydraulic split path transmission steering gear, variable output pump and wheel box, entire car controller, master clutch, transfer gear, raising speed case and loading motor described in pedestal control system control linkage.
3. a mechanical-hydraulic split path transmission steering gear pilot system according to claim 2, it is characterized in that, described experimental control device also comprises display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048791.0A CN103149038B (en) | 2013-02-06 | 2013-02-06 | Vehicle mechanical and hydraulic dual-flow transmission steering device test bench and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310048791.0A CN103149038B (en) | 2013-02-06 | 2013-02-06 | Vehicle mechanical and hydraulic dual-flow transmission steering device test bench and system |
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| CN103149038A CN103149038A (en) | 2013-06-12 |
| CN103149038B true CN103149038B (en) | 2015-07-08 |
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| CN103822788B (en) * | 2014-02-27 | 2017-01-04 | 河南科技大学 | Torque loading device and use the tractor test platform of this device |
| CN107576433B (en) * | 2017-08-29 | 2019-06-07 | 中国北方车辆研究所 | Armored vehicle comprehensive actuator dynamometry support |
| CN109187012B (en) * | 2018-09-21 | 2020-08-28 | 江苏大学 | Multipoint power output gearbox test system and method |
| CN112611586B (en) * | 2020-12-05 | 2021-07-23 | 广州华源创兴计算机服务有限公司 | Method and system for testing and verifying liquid cooling system of data machine room |
| CN114661035B (en) * | 2022-05-25 | 2022-08-05 | 江苏英拓动力科技有限公司 | Unmanned tracked vehicle direction control testboard |
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