CN203148674U - Test stand and test system for vehicle hydraulic machinery buncher - Google Patents
Test stand and test system for vehicle hydraulic machinery buncher Download PDFInfo
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- CN203148674U CN203148674U CN 201320070820 CN201320070820U CN203148674U CN 203148674 U CN203148674 U CN 203148674U CN 201320070820 CN201320070820 CN 201320070820 CN 201320070820 U CN201320070820 U CN 201320070820U CN 203148674 U CN203148674 U CN 203148674U
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Abstract
本实用新型涉及一种车辆液压机械无级变速器试验台架与试验系统，以弥补现有技术中没有专用试验台架的缺陷。试验台架与待试验的液压机械无级变速器构成一个试验用的传动系统，试验控制装置由于对试验台架、待试验的液压机械无级变速器进行控制，对相关传感器参数进行采集。本实用新型能够对液压机械无级变速器进行试验，对液压机械无级变速器的设计、动态特性、性能试验的研究有重要意义，对军用装甲车辆、拖拉机、工程机械等车辆技术的发展具有广泛的意义。
The utility model relates to a vehicle hydraulic mechanical continuously variable transmission test bench and a test system to make up for the defect that there is no special test bench in the prior art. The test bench and the hydraulic-mechanical continuously variable transmission to be tested constitute a test transmission system, and the test control device collects relevant sensor parameters for controlling the test bench and the hydraulic-mechanical continuously variable transmission to be tested. The utility model can test the hydraulic-mechanical continuously variable transmission, which is of great significance to the research of the design, dynamic characteristics and performance test of the hydraulic-mechanical continuously variable transmission, and has extensive implications for the development of military armored vehicles, tractors, engineering machinery and other vehicle technologies. significance.
Description
Technical field
The utility model relates to a kind of vehicle hydraulic mechanical stepless transmission testing table and pilot system.
Background technology
Conventional truck mainly adopts many grades of mechanical types that a grade gear-shift mechanism is arranged, and the driver needs the buty shifting speed change to satisfy car load dynamic property, economy requirement, and labour intensity is big, and efficient is low.In order to remedy the deficiency of traditional variator, from the seventies in last century, all launched the development work of hydraulic mechanical stepless gearbox (HMCVT) abroad.Domestic research to hydraulic mechanical stepless gearbox starts from late 1970s, and various research institutions are studied the principle of hydraulic mechanical stepless gearbox, theoretical characteristics etc.
Hydraulic mechanical stepless gearbox is that a class flows the double power flow stepless change type of belt drive that makes up transferring power by hydraulic power stream and mechanical output, realizes efficient, high-power power transmission by mechanical drive, realizes stepless change by hydrostatic transmission.Transmission powers such as military armored vehicle, tractor, engineering machinery are big, velocity variations wide ranges, operating condition complexity, its dynamic property, fuel economy, ground adaptability and operation automation level etc. are required height, adopt high-power automatic stepless speed change technology to seem and be necessary.
Domestic common vehicle gearbox testrigs automaticity is low, versatility is poor.Not at the special-purpose test-bed of hydraulic mechanical stepless gearbox, limited the research to various performances, Design and analysis methods and the control system of hydraulic mechanical stepless gearbox at present.
The utility model content
The purpose of this utility model provides a kind of vehicle hydraulic mechanical stepless transmission test-bed and pilot system, to remedy the defective that does not have special-purpose test-bed in the prior art.
For achieving the above object, scheme of the present utility model comprises:
Vehicle hydraulic mechanical stepless transmission test-bed comprises the variator installation position for the assembling hydraulic mechanical stepless gearbox, and the variator installation position connects No. one machinery input, the input of one road hydraulic pressure and No. one machinery output; Described No. one machinery input is is mainly connected and composed in turn by engine, master clutch and transfer gear, transfer gear comprises two output terminals, first output terminal is used for described No. one machinery input, second output terminal is used for described one road hydraulic pressure input, and described one road hydraulic pressure input mainly is made of in turn second output terminal, variable output pump, the fixed displacement motor of transfer gear; Described No. one machinery output is is mainly connected and composed in turn by raising speed case and loading motor; Between described master clutch and the transfer gear, between variator installation position and the raising speed case, between second output terminal and variable output pump of transfer gear, be equipped with torque and speed sensors between fixed displacement motor and the variator installation position.
Between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the raising speed case.
Vehicle hydraulic mechanical stepless transmission pilot system, comprise vehicle hydraulic mechanical stepless transmission test-bed and experimental control device, described vehicle hydraulic mechanical stepless transmission test-bed, comprise the variator installation position for the assembling hydraulic mechanical stepless gearbox, the variator installation position connects No. one machinery input, the input of one road hydraulic pressure and No. one machinery output; Described No. one machinery input is is mainly connected and composed in turn by engine, master clutch and transfer gear, transfer gear comprises two output terminals, first output terminal is used for described No. one machinery input, second output terminal is used for described one road hydraulic pressure input, and described one road hydraulic pressure input mainly is made of in turn second output terminal, variable output pump, the fixed displacement motor of transfer gear; Described No. one machinery output is is mainly connected and composed in turn by raising speed case and loading motor; Between described master clutch and the transfer gear, between variator installation position and the raising speed case, between second output terminal and variable output pump of transfer gear, be equipped with torque and speed sensors between fixed displacement motor and the variator installation position; Described experimental control device, comprise entire car controller and pedestal control system, entire car controller is used for control engine, hydraulic mechanical stepless gearbox and variable output pump, the described entire car controller of pedestal control system control linkage, master clutch, transfer gear, raising speed case and loading motor.
Described experimental control device also comprises display unit.
Between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the raising speed case.
The utility model can be tested hydraulic mechanical stepless gearbox, utilize transmission and the control system of existing vehicle to greatest extent, utilize transfer gear to produce the two-way input, and by wherein one the tunnel producing the hydraulic power input, another road produces the machine power input, so just specific hydraulic power needn't be set in addition again, thereby simplify the structure of stand greatly, reduce design difficulty.The utility model is controlled power train by control system and is obtained the correlated performance parameter of power train by sensor, controls test in real time.The utility model is significant to the research of the design of hydraulic mechanical stepless gearbox, dynamic perfromance, performance test, and the development of vehicle technology such as military armored vehicle, tractor, engineering machinery is had wide significance.
Description of drawings
Fig. 1 is vehicle hydraulic mechanical stepless transmission pilot system synoptic diagram;
Fig. 2 is vehicle hydraulic mechanical stepless transmission test-bed structural drawing.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
Pilot system embodiment
Hydraulic mechanical stepless gearbox has various ways, all comprises the input of one road hydraulic pressure, No. one machinery input and one tunnel output at least, and concrete structure belongs to prior art, repeats no more.The utility model can be tested hydraulic mechanical stepless gearbox.
Vehicle hydraulic mechanical stepless transmission pilot system as shown in Figure 1 comprises vehicle hydraulic mechanical stepless transmission test-bed and experimental control device.Test-bed and hydraulic mechanical stepless gearbox to be tested constitute the kinematic train of a test usefulness, and experimental control device is gathered the related sensor parameter because test-bed, hydraulic mechanical stepless gearbox to be tested are controlled.
Vehicle hydraulic mechanical stepless transmission test-bed comprises the variator installation position for the assembling hydraulic mechanical stepless gearbox, and the variator installation position connects No. one machinery input, the input of one road hydraulic pressure and No. one machinery output; No. one machinery input is is mainly connected and composed in turn by engine, master clutch and transfer gear, transfer gear comprises two output terminals, first output terminal is used for described No. one machinery input, second output terminal is used for described one road hydraulic pressure input, and the input of one road hydraulic pressure mainly is made of in turn second output terminal, variable output pump, the fixed displacement motor of transfer gear; No. one machinery output is is mainly connected and composed in turn by raising speed case and loading motor; Between master clutch and the transfer gear, between variator installation position and the raising speed case, between second output terminal and variable output pump of transfer gear, be equipped with torque and speed sensors between fixed displacement motor and the variator installation position.
Experimental control device, comprise entire car controller and pedestal control system, entire car controller is used for control engine, hydraulic mechanical stepless gearbox and variable output pump, and pedestal control system is used for control linkage entire car controller master clutch, transfer gear, raising speed case, loading motor.
Pedestal control system is the related data of each parts of testing table such as each torque and speed sensors of the company of sampling also.As a kind of embodiment, for direct viewing test process, can increase display device, be used for showing the intermediate result of gathering etc.
The concrete steps of single test comprise:
Engine is prepared: engine is installed, cold air thermostatic control system in throttle actuator, the 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. are set.
Hydraulic mechanical stepless gearbox is prepared: hydraulic mechanical stepless gearbox, gearbox controller, variator three-dimensional rack are installed; Variator variable output pump-fixed displacement motor hydraulic system, transmission pressure station, hydraulic plumbing system, variator wire harness are set.
Transmission shaft and joint flange are prepared: connection engine, transfer gear, hydraulic mechanical stepless gearbox, loading motor, torque rotary speed sensor, torque protective device etc. are set.
Loading motor is prepared: loading motor, loading motor support are installed; Cooling system, loading motor wire harness are set.
Install, debug: be illustrated in figure 2 as the test-bed concrete structure, engine 2, transfer case 11, hydraulic mechanical stepless gearbox 18, loading motor 26 etc. are installed on the three-dimensional adjustable support 1; Throttle actuator 4, clutch operating device assembly 5 etc. are connected with engine 2; Engine with universal drive shaft 6 be installed in the transfer case 11 that transfer case props up seat assembly 27 and be connected; Engine output power is shunted through transfer case 11: the one tunnel through transmission shaft auxiliary support apparatus assembly 7, first torque limiter 8, first torque rotary speed sensor 9, shaft coupling 10, universal drive shaft 12 inflow hydraulic mechanical stepless gearboxes 18 mechanical input ends, and another road first shaft coupling 28, second torque rotary speed sensor 29, second shaft coupling 30, variator variable output pump 31, fixed displacement motor 13, the 3rd shaft coupling 14, second torque rotary speed sensor 15, tetrad axial organ 16, accurate Hooks coupling universal coupling 17 enter hydraulic mechanical stepless gearbox hydraulic pressure input end; The power that confluxes flows into raising speed case 22 by the output of hydraulic continuously variable transmission output shaft through 5-linked axial organ 19, the 3rd torque rotary speed sensor 20, second torque limiter 21, is connected with loading motor 26 through the 6th shaft coupling 23, steering gear 24, the 7th shaft coupling 25.
Adjust the three-dimensional adjustable support height of parts such as engine 2, transfer gear 11, hydraulic machinery infinitely variable transmission 18, raising speed case 22, steering gear 24, loading motor 26, torque rotary speed sensor 9,15,20,29, the first torque protective device 8, the center line height is consistent; Each controller unit is installed, is arranged engine and controller wire harness, set up the CAN network, connect whole display device; The communication of debugging vehicle hydraulic mechanical stepless transmission platform system.
Utilize this vehicle hydraulic mechanical stepless transmission experimental stand can finish following test: related experiment such as the principle of Hydromechanical Stepless Transmission, theoretical characteristics, Design and analysis methods, dynamic perfromance, control system; The coupling experiment of engine and Hydromechanical Stepless Transmission system; Hydromechanical Stepless Transmission system dynamic characteristic and performance test.
Vehicle hydraulic mechanical stepless transmission stand The whole control system is made up of entire car controller, display unit and pedestal control system.Whole-control system is controlled the work of car load parts respectively by two ECU, is respectively ECU1 control engine; ECU2 control hydraulic mechanical stepless gearbox and variable output pump-fixed displacement motor system thereof; Pedestal control system is except each automobile component of coordinating the control vehicle control unit controls, control each parts of whole test platform simultaneously, comprise all torque rotary speed sensors, torque limiter, transfer gear, raising speed case and loading motor etc., various data, state and intermediate result etc. in simultaneously also can each component test of back-to-back testing platform.Display unit is used for showing control situation, ruuning situation, experimentation and the experimental result etc. of whole all parts of stand.The whole control system is formed the CAN network, and the stand all functions all realize control by the CAN network.
Engine provides necessary power source for pilot system; Dynamometer machine be used for to absorb the power that engine transmits through power train, the working environment of simulating tested power train, and power absorbed is converted to electric energy feeds back to electrical network; Torque limiter combines each mechanical part of test-bed, forms the integral body with certain function, plays the limit torsion effect simultaneously; The realization of raising speed case is fallen the raising speed of the final transmission of power train and is turned round, and makes the input end torque rotary speed of dynamometer machine and dynamometer machine torque characteristics be complementary; The turning device makes the more symmetrical compactness of whole test platform, reduces experiment porch and takes up an area of the space; The auxiliary back-up system in laboratory provides necessary working environment for various mechanical components.
Experimental control device mainly is made up of 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, can realize the whole test platform is carried out centralized control, to test parameters monitor, gather, show, record, analysis and chart printout, and process of the test monitored and record.The data that experimental control device can be gathered comprise rotating speed, torque, pressure, flow, temperature, engine throttle opening etc.
Select for use engine as the power source of testing table, make by the test situation of test specimen and real vehicle behaviour in service the most approaching as far as possible.The throttle position that the engine throttle actuator is set according to main control computer is regulated accelerator open degree automatically, stablizes engine speed.Load simulating device adopts direct current generator as loader, be used for simulating endless-track vehicle work road conditions load resistance, cooperate the rectification feedback unit, the dynamometer system that constitutes has two kinds of operational modes, both may operate at generating state, also may operate at motoring condition, process is changed automatically, and feedback meets the electric energy of electrical network feedback quality requirements fully.Simultaneously, utilize special control system to realize that the transmission of simulating vehicle power drive system power changes, thereby 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 mode.Motor under this pattern is under the adjusting of control system, and set-point and the measured value of torque compare, and relatively the difference after is regulated through PID, automatically adjust its armature supply by given control mode, change the output torque of dynamometer machine, make it not change with change in rotational speed, maintain set-point.This pattern is the basic model of this pilot system operation.
(2) permanent rotating speed pattern.The loading rotating speed of control system control direct current generator, the value of being set compares with measured value, and relatively the difference after is regulated through PID, and by given control mode self-regulation motor armature supply, the rotating speed that changes dynamometer machine makes it maintain set-point.Under this pattern, namely can carry out the match test of power train and engine, can carry out the performance test test to engine separately again.
(3) permanent power mode.Control system makes the loading power (product of rotating speed and torque) of direct current generator maintain set-point.Can be used for the simulating vehicle operating mode of giving it the gun under this pattern.
The data information transfer of pilot system adopts CAN bus communication technology, makes the data transmission of host computer and slave computer convenient, quick, reliable.Adopt this patent not only can carry out the individual event testing experiment of power train for vehicle performance and efficient, but also can carry out the mixed performance test experiments of power train for vehicle, simultaneously can also omnidistance steering procedure of simulating endless-track vehicle; Can realize dynamic load by control program, the state of cyclic operation of simulation complete machine actual condition or regulation; Control system can arrange different closed loop control modes with rotating speed, the torque of dynamometer machine to engine according to different test methods, can satisfy every content of the test and the pilot project stipulated in the vehicle driveline correlation test standard fully; According to actual requirement, as long as operating personnel press different control model buttons, the switching of various control modes does not have disturbance fully in the process of the test; Each test volume and analysis result in the test can show in real time, handle, store and print.Compare with the real train test of transmission in the past, adopt the various types of vehicles power drive system of carrying out that this testing table can be simple and efficient to test, save a large amount of experimental period and funds, be applicable to every performance test of vehicle transmission gear.
Test-bed embodiment
Test-bed by the agency of in pilot system embodiment does not repeat them here.
Claims (5)
1. vehicle hydraulic mechanical stepless transmission test-bed is characterized in that, comprises the variator installation position for the assembling hydraulic mechanical stepless gearbox, and the variator installation position connects No. one machinery input, the input of one road hydraulic pressure and No. one machinery output; Described No. one machinery input is is mainly connected and composed in turn by engine, master clutch and transfer gear, transfer gear comprises two output terminals, first output terminal is used for described No. one machinery input, second output terminal is used for described one road hydraulic pressure input, and described one road hydraulic pressure input mainly is made of in turn second output terminal, variable output pump, the fixed displacement motor of transfer gear; Described No. one machinery output is is mainly connected and composed in turn by raising speed case and loading motor; Between described master clutch and the transfer gear, between variator installation position and the raising speed case, between second output terminal and variable output pump of transfer gear, be equipped with torque and speed sensors between fixed displacement motor and the variator installation position.
2. vehicle hydraulic mechanical stepless transmission test-bed according to claim 1 is characterized in that, between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the raising speed case.
3. vehicle hydraulic mechanical stepless transmission pilot system, it is characterized in that, comprise vehicle hydraulic mechanical stepless transmission test-bed and experimental control device, described vehicle hydraulic mechanical stepless transmission test-bed, comprise the variator installation position for the assembling hydraulic mechanical stepless gearbox, the variator installation position connects No. one machinery input, the input of one road hydraulic pressure and No. one machinery output; Described No. one machinery input is is mainly connected and composed in turn by engine, master clutch and transfer gear, transfer gear comprises two output terminals, first output terminal is used for described No. one machinery input, second output terminal is used for described one road hydraulic pressure input, and described one road hydraulic pressure input mainly is made of in turn second output terminal, variable output pump, the fixed displacement motor of transfer gear; Described No. one machinery output is is mainly connected and composed in turn by raising speed case and loading motor; Between described master clutch and the transfer gear, between variator installation position and the raising speed case, between second output terminal and variable output pump of transfer gear, be equipped with torque and speed sensors between fixed displacement motor and the variator installation position;
Described experimental control device, comprise entire car controller and pedestal control system, entire car controller is used for control engine, hydraulic mechanical stepless gearbox and variable output pump, the described entire car controller of pedestal control system control linkage, master clutch, transfer gear, raising speed case and loading motor.
4. hydraulic mechanical stepless gearbox pilot system according to claim 3 is characterized in that, described experimental control device also comprises display unit.
5. vehicle hydraulic mechanical stepless transmission pilot system according to claim 3 is characterized in that, between described master clutch and the transfer gear, be equipped with torque limiter between variator installation position and the raising speed case.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320070820 CN203148674U (en) | 2013-02-06 | 2013-02-06 | Test stand and test system for vehicle hydraulic machinery buncher |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320070820 CN203148674U (en) | 2013-02-06 | 2013-02-06 | Test stand and test system for vehicle hydraulic machinery buncher |
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| CN203148674U true CN203148674U (en) | 2013-08-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162958A (en) * | 2013-02-06 | 2013-06-19 | 河南科技大学 | Vehicle hydraulic machinery stepless transmission test bench and test system |
| CN103529828A (en) * | 2013-10-29 | 2014-01-22 | 中国人民解放军军事交通学院 | Testing system and method of high-power automatic transmission control strategy |
| CN104913932A (en) * | 2015-06-25 | 2015-09-16 | 北京工业大学 | Test bench for oscillating-tooth continuously variable transmission |
| CN107272658A (en) * | 2017-07-25 | 2017-10-20 | 山推工程机械股份有限公司 | A kind of efficiency monitoring device, bull-dozer power assembly and bull-dozer |
| CN107367392A (en) * | 2017-06-09 | 2017-11-21 | 火箭军装备研究院第三研究所 | Electric dynamometer formula vehicle load simulation system and control method |
| CN108871788A (en) * | 2018-05-21 | 2018-11-23 | 吉林大学 | A kind of automatic transmission shift attribute test rack and its method of calibration and shift quality evaluation method |
| CN110455531A (en) * | 2019-08-14 | 2019-11-15 | 山东科技大学 | A multifunctional test bench for power split hydraulic-mechanical compound transmission system and its application |
-
2013
- 2013-02-06 CN CN 201320070820 patent/CN203148674U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162958A (en) * | 2013-02-06 | 2013-06-19 | 河南科技大学 | Vehicle hydraulic machinery stepless transmission test bench and test system |
| CN103529828A (en) * | 2013-10-29 | 2014-01-22 | 中国人民解放军军事交通学院 | Testing system and method of high-power automatic transmission control strategy |
| CN103529828B (en) * | 2013-10-29 | 2016-01-27 | 中国人民解放军军事交通学院 | The method of testing of high-power automatic transmission control strategy |
| CN104913932A (en) * | 2015-06-25 | 2015-09-16 | 北京工业大学 | Test bench for oscillating-tooth continuously variable transmission |
| CN104913932B (en) * | 2015-06-25 | 2018-02-27 | 北京工业大学 | A kind of test-bed of movable-tooth stepless speed transmission |
| CN107367392A (en) * | 2017-06-09 | 2017-11-21 | 火箭军装备研究院第三研究所 | Electric dynamometer formula vehicle load simulation system and control method |
| CN107272658A (en) * | 2017-07-25 | 2017-10-20 | 山推工程机械股份有限公司 | A kind of efficiency monitoring device, bull-dozer power assembly and bull-dozer |
| CN108871788A (en) * | 2018-05-21 | 2018-11-23 | 吉林大学 | A kind of automatic transmission shift attribute test rack and its method of calibration and shift quality evaluation method |
| CN110455531A (en) * | 2019-08-14 | 2019-11-15 | 山东科技大学 | A multifunctional test bench for power split hydraulic-mechanical compound transmission system and its application |
| CN110455531B (en) * | 2019-08-14 | 2020-04-21 | 山东科技大学 | A hydraulic-mechanical composite transmission system test bench and its application |
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