CN209485684U - Hydraulic mechanical stepless gearbox transmission system experimental stand - Google Patents
Hydraulic mechanical stepless gearbox transmission system experimental stand Download PDFInfo
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- CN209485684U CN209485684U CN201821422334.8U CN201821422334U CN209485684U CN 209485684 U CN209485684 U CN 209485684U CN 201821422334 U CN201821422334 U CN 201821422334U CN 209485684 U CN209485684 U CN 209485684U
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- China
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- mechanical stepless
- hydraulic mechanical
- stepless gearbox
- hydraulic
- tested
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Abstract
The utility model relates to a kind of hydraulic mechanical stepless gearbox transmission system experimental stands, to make up the problem of lacking now for transmission system experimental stand.Hydraulic mechanical stepless gearbox transmission system experimental stand includes by machine driven system and experiment TT&C system, and the information that data collecting card acquires is handled, analyzes to regulate and control engine, hydraulic mechanical stepless gearbox to be tested, magnetic powder brake in machine driven system by HMCVT industry control host computer by experiment TT&C system.Torque rotary speed needed for the utility model can analyze respectively walking mechanism load device and workload device by transfer gear tests hydraulic mechanical stepless gearbox, design to hydraulic mechanical stepless gearbox, dynamic characteristic and performance test are of great significance.
Description
Technical field
The present invention relates to a kind of experimental stand, especially a kind of hydraulic mechanical stepless gearbox transmission system experimental stand.
Background technique
The advantages of hydraulic mechanical stepless gearbox integrated hydraulic and machine driving, using double power flow coupled drive mode,
Its main feature is that transmission ratio is continuously adjustable, speed ratio variation range is big, transmitting power is steady, easy to operate, if transmission ratio exists
Dry mutually rank has variable speed in grade section, it is to improving agricultural operation machinery speed and quality, reduce labor intensity, reduce work
Industry cost suffers from important meaning.But most of experimental stand is to be directed to manual transmission and automatic transmission now, right
It is less in the experimental stand of hydraulic mechanical stepless gearbox.Design a kind of reality for hydraulic mechanical stepless gearbox performance test
Rack is tested to be of great significance.
Summary of the invention
It is an object of the present invention to provide one kind can complete hydraulic mechanical stepless gearbox performance test test, parameter measurement and
The hydraulic mechanical stepless gearbox experimental stand of actual condition simulation.
Hydraulic mechanical stepless gearbox transmission system experimental stand, including machine driven system and experiment TT&C system,
Be characterized in that: machine driven system include the engine of power source, power distribution transfer gear, hydraulic machinery to be tested it is stepless
Speed changer, Walk Simulation mechanism load device, simulation workload device and in engine and transfer gear, transfer gear and to be measured
Hydraulic mechanical stepless gearbox, transfer gear and the magnetic powder brake of examination, hydraulic mechanical stepless gearbox to be tested and magnetic powder system
Torque and speed sensors are respectively equipped between dynamic device；TT&C system includes under HMCVT industry control host computer, data collecting card, HMCVT
Position machine and clutch controller and arrester control device；The hydraulic mechanical stepless gearbox to be tested includes variable
Pump-fixed displacement motor speed change system, gearshift and planetary gear confluence mechanism；The clutch controller include fuel tank,
Filter, motor, oil pump, overflow valve, solenoid directional control valve, connected pipes；The data collecting card is by the engine temperature of acquisition
Pressure, engine speed torque, input shaft rotating speed torque, Walk Simulation mechanism arrangement rotational speed and torque, simulation workload device
The low pressure oil way oil pressure of rotational speed and torque and hydraulic mechanical stepless gearbox to be tested, low pressure oil way flow, high pressure oil road binders
Pressure, high-pressure oil passage flow issue output signal by HMCVT industry control host computer and control engine by accelerator open degree controller, pass through
HMCVT slave computer controls hydraulic mechanical stepless gearbox to be tested, controls magnetic powder brake by exciting current.Clutch control
Device processed includes fuel tank, filter, motor, oil pump, overflow valve, solenoid directional control valve, connected pipes.
Torque rotary speed needed for preferred term, magnetic powder brake Walk Simulation mechanism load device and simulation workload device
Walk Simulation mechanism arrangement and simulation workload device signal are fed back by torque and speed sensors, and pass through excitation
Current control magnetic powder brake Walk Simulation mechanism arrangement and simulation workload device.
Preferred term, the present invention are equipped with transfer gear, transfer between engine and hydraulic mechanical stepless gearbox to be tested
Device has two-way output, is the Walk Simulation mechanism arrangement magnetic powders brake by hydraulic mechanical stepless gearbox to be tested all the way
Device simulates continually changing running resistance and tractive resistance when the operation of workload device；Another way connection simulation workload
Device provides corresponding power for simulation workload device；Transfer gear and hydraulic mechanical stepless gearbox to be tested, to
The hydraulic mechanical stepless gearbox and magnetic powder brake of test are equipped with rotational speed and torque sensing between transfer gear and magnetic powder brake
Device, the signal is input to data collecting cards for torque and speed sensors, and are handled by the analysis of HMCVT industry control host computer data,
Engine and hydraulic mechanical stepless gearbox to be tested are controlled, adjusted, to meet experiment necessary requirement and experiment energy
It is enough smoothly to complete.
Preferred term, it is described in order to accurately obtain the performance test parameter of hydraulic mechanical stepless gearbox to be tested
Hydraulic mechanical stepless gearbox to be tested includes hydraulic system, gearshift and planetary gear confluence mechanism；Described is hydraulic
System includes variable pump-fixed displacement motor speed change system, proportion magnetic valve, pressure valve, check valve, flowmeter；The shift machine
Structure includes shift clutch；The planetary gear confluence mechanism includes the double planet wheel rows of mixing of sun gear, planetary gear, gear ring composition.
Detailed description of the invention
Fig. 1 is cotton picker hydraulic mechanical stepless gearbox transmission system experimental stand control principle drawing.
Fig. 2 is cotton picker hydraulic mechanical stepless gearbox structural principle.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, hydraulic mechanical stepless gearbox transmission system experimental system, including machine driven system experimental stand
And experiement control device.Machine driven system experimental stand: the engine of power source, power distribution transfer gear, to be tested
Hydraulic mechanical stepless gearbox, Walk Simulation mechanism load device, simulation workload device and engine and transfer gear,
Transfer gear and hydraulic mechanical stepless gearbox to be tested, transfer gear and magnetic powder brake, the stepless change of hydraulic machinery to be tested
The torque and speed sensors being arranged between fast device and magnetic powder brake.Experiement control device includes HMCVT industry control host computer, data
Capture card, HMCVT slave computer and clutch controller and arrester control device, to experimental stand and to be tested hydraulic
Mechanical stepless transmission is collected related data and is controlled according to variation.
Hydraulic mechanical stepless gearbox transmission system has two-way output after transfer gear, is by be tested hydraulic all the way
The Walk Simulation mechanism load device magnetic powder brake of mechanical stepless transmission, walking mechanism continually changing row when simulation job
Sail resistance and tractive resistance；Another way connection simulation workload device, provides corresponding power for simulation workload device.
Engine prepares: fixed engine cradle installs engine；Engine throttle is connected, engine air temperature is prepared
Spend control system, oil temperature control system, engine water temperature control system, fuel oil supply system, exhaust system and engine
Related harness.
Hydraulic mechanical stepless gearbox to be tested prepares: hydraulic mechanical stepless gearbox to be tested is installed and fixed, it is quasi-
Standby hydraulic mechanical stepless gearbox variable pump-fixed displacement motor speed change system to be tested, hydraulic feed system and to be tested hydraulic
Mechanical stepless transmission correlation harness.
Transmission shaft and connector prepare: preparing engine, transfer gear, hydraulic mechanical stepless gearbox to be tested, magnetic powder system
Dynamic device and torque rotary speed sensor etc., shaft coupling connect corresponding component.
On the basis of hydraulic mechanical stepless gearbox to be tested and its rack, successively connect engine support, transfer gear and
Torque rotary speed sensor makes engine, transfer gear, hydraulic mechanical stepless gearbox to be tested, torque rotary speed sensor and magnetic powder
Brake is in same center line.
Control system is installed and fixed, by engine, torque rotary speed sensor and hydraulic machinery variable speed to be tested
The signal harness of device is connected with data collecting card；By the control harness of hydraulic mechanical stepless gearbox to be tested and to be tested
Hydraulic mechanical stepless gearbox slave computer is connected；Data collecting card and hydraulic mechanical stepless gearbox slave computer to be tested are distinguished
It is connected with hydraulic mechanical stepless gearbox industrial personal computer to be tested.Hydraulic mechanical stepless gearbox industrial personal computer to be tested is by data
The information of capture card carries out finishing analysis, and to engine, hydraulic mechanical stepless gearbox to be tested and magnetic powder brake into
Row control, to complete performance test research.
Industrial personal computer adjusts engine by the position rule variation of accelerator pedal, and the power of engine output passes through shaft coupling
It is transferred to torque rotary speed Acquisition Instrument and is transferred to transfer gear again, two-way is divided by transfer gear, passed all the way by torque and speed sensors
To hydraulic mechanical stepless gearbox to be tested；Industrial personal computer controls hydraulic mechanical stepless gearbox to be tested by controlling signal
The access and disconnection of clutch and brake change section control speed changer；Hydraulic mechanical stepless gearbox speed regulation to be tested
Power afterwards is transferred to the magnetic that torque rotary speed sensor is finally transmitted to vehicle simulation walking mechanism load device through shaft coupling again
Powder brake；Another way is connected by torque and speed sensors with simulation workload device by transfer gear, and rotational speed and torque passes
Sensor is to data collecting card feedback signal, and hydraulic mechanical stepless gearbox industrial personal computer to be tested is by exciting current control simulation
Workload device.
Hydraulic mechanical stepless gearbox transmission system experimental stand is loaded and is worked by magnetic powder brake simulating vehicle
Working condition acquires engine, hydraulic mechanical stepless gearbox and torque and speed sensors to be tested using TT&C system
Output data, clutch and braking are controlled by the hydraulic system and TT&C system of hydraulic mechanical stepless gearbox to be tested
The working condition of device and the discharge capacity of regulated variable pump are than to reach the adjusting to whole system transmission ratio, realizing HMCVT to starting
Mechanomotive force and load environment stepless speed regulation matching.
Can complete following tests using this hydraulic mechanical stepless gearbox transmission system experimental stand: hydraulic machinery is stepless
The related experiments such as principle, theoretical characteristics, Design and analysis methods, dynamic characteristic, the control system of transmission, gearbox no-load loss are real
It tests, the experiment of gearbox continuous stepless speed regulation experiment, transmission efficiency, speed torque characteristic experiment, shifting quality research, hydraulic closure
Circuit system control experiment, the matching experiment of engine and Hydromechanical Stepless Transmission system and cotton picker picking desk are to hydraulic
Mechanical stepless Dynamic Characteristics of Drive System
Finally, it is stated that embodiment of above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although
The utility model is described in detail referring to better embodiment, those skilled in the art should understand that, it can be with
It modifies to the technical solution of the utility model or equivalent replacement, without departing from the objective and range of the present invention program,
Because covering in the scope of the claims of the utility model.
Claims (8)
1. hydraulic mechanical stepless gearbox transmission system experimental stand, including machine driven system and experiment TT&C system, special
Sign is: the machine driven system include the engine of power source, power distribution transfer gear, hydraulic machinery to be tested without
Grade speed changer, Walk Simulation mechanism load device, simulation workload device and engine and transfer gear, transfer gear and to
Hydraulic mechanical stepless gearbox, transfer gear and the magnetic powder brake of test, hydraulic mechanical stepless gearbox and magnetic powder to be tested
Torque and speed sensors are respectively equipped between brake；The TT&C system include HMCVT industry control host computer, data collecting card,
HMCVT slave computer and clutch controller and arrester control device；The hydraulic mechanical stepless gearbox to be tested
Including variable pump-fixed displacement motor speed change system, gearshift and planetary gear confluence mechanism；The clutch controller packet
Include fuel tank, filter, motor, oil pump, overflow valve, solenoid directional control valve, connected pipes；The data collecting card is by the information of acquisition
It is transferred to HMCVT industry control host computer；The information analysis of acquisition, arrangement it is logical to be issued output signal by the HMCVT industry control host computer
Accelerator open degree controller control engine is crossed, hydraulic mechanical stepless gearbox to be tested is controlled by HMCVT slave computer, is passed through
Exciting current controls magnetic powder brake.
2. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 1, it is characterised in that: the survey
Control system turns engine temperature pressure, engine speed torque, input shaft rotating speed torque, Walk Simulation mechanism arrangement revolving speed
Square, simulation workload device rotary speed torque and the low pressure oil way oil pressure of hydraulic mechanical stepless gearbox to be tested, low pressure
Oil circuit flow, high-pressure oil passage oil pressure, high-pressure oil passage flow are transferred to data collecting card, will acquire information transmitting by data collecting card
To HMCVT industry control host computer；The TT&C system passes through hydraulic system displacement control device, clutch controller, brake
Control device regulates and controls hydraulic mechanical stepless gearbox to be tested.
3. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 1, it is characterised in that: the magnetic
Torque rotary speed needed for powder brake Walk Simulation mechanism load device and simulation workload device is sensed by rotational speed and torque
Device feeds back Walk Simulation mechanism load device and simulation workload device signal, and controls magnetic powder by exciting current
Brake Walk Simulation mechanism arrangement and magnetic powder brake workload device.
4. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 1, it is characterised in that: the machine
Tool transmission system further includes that engine-cooling system and oil pressure system for detecting temperature, hydraulic mechanical stepless gearbox to be tested are cold
But system and hydraulic pressure TT&C system and support device；The support device includes the fixed bracket of engine, and revolving speed turns
Square supporting support, the supporting support of hydraulic mechanical stepless gearbox to be tested, the fixed bracket of hydraulic speed regulation system, load simulation
The fixed bracket of device and the fixed bracket of TT&C system.
5. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 1, it is characterised in that: described
Engine pedal is controlled by industrial personal computer output signal, according to load regulation engine throttle opening.
6. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 1, it is characterised in that: it is described to
The hydraulic mechanical stepless gearbox of test includes hydraulic speed regulation system, gearshift and planetary gear confluence mechanism；The liquid
Pressing speed-regulating system includes variable pump-fixed displacement motor speed change system, proportion magnetic valve, pressure valve, check valve, flowmeter；Described
Gearshift includes shift clutch；The planetary gear confluence mechanism includes the duplicate rows of sun gear, planetary gear, gear ring composition
Star row.
7. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 5, it is characterised in that: described
Hydraulic mechanical stepless gearbox to be tested includes pure hydraulic mechanism and hydraulic machinery mixed organization.
8. hydraulic mechanical stepless gearbox transmission system experimental stand according to claim 1, it is characterised in that: described
Transfer gear shunts the power that engine transmits, and is the simulation row by hydraulic mechanical stepless gearbox to be tested all the way
Mechanism arrangement magnetic powder brake is walked, the continually changing running resistance of travelling mechanism device and tractive resistance when simulating working；
Another way connection simulation workload device, provides corresponding power for simulation workload device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821422334.8U CN209485684U (en) | 2018-08-31 | 2018-08-31 | Hydraulic mechanical stepless gearbox transmission system experimental stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821422334.8U CN209485684U (en) | 2018-08-31 | 2018-08-31 | Hydraulic mechanical stepless gearbox transmission system experimental stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209485684U true CN209485684U (en) | 2019-10-11 |
Family
ID=68111601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821422334.8U Expired - Fee Related CN209485684U (en) | 2018-08-31 | 2018-08-31 | Hydraulic mechanical stepless gearbox transmission system experimental stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209485684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744070A (en) * | 2021-03-11 | 2021-05-04 | 石河子大学 | Driving electromechanical hybrid stepless speed regulating system for cotton picker |
-
2018
- 2018-08-31 CN CN201821422334.8U patent/CN209485684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744070A (en) * | 2021-03-11 | 2021-05-04 | 石河子大学 | Driving electromechanical hybrid stepless speed regulating system for cotton picker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191011 Termination date: 20200831 |