CN202485849U - Vehicle traction test system - Google Patents
Vehicle traction test system Download PDFInfo
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- CN202485849U CN202485849U CN201220017288XU CN201220017288U CN202485849U CN 202485849 U CN202485849 U CN 202485849U CN 201220017288X U CN201220017288X U CN 201220017288XU CN 201220017288 U CN201220017288 U CN 201220017288U CN 202485849 U CN202485849 U CN 202485849U
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- test macro
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Abstract
The utility model discloses a vehicle traction test system, comprising a test platform which comprises a rotatable ground simulation apparatus and a power conversion apparatus which are in connection; a hydraulic loading system that comprises a variable hydraulic motor and an adjustable overflow valve, wherein an output terminal of the variable hydraulic motor is in connection with the power conversion apparatus and an oil-way of the hydraulic motor is provided with the adjustable overflow valve; and a traction test and output system that comprises a connecting piece, a dynamometer and a fixed station, wherein the connecting piece is in connection with the fixed station, the dynamometer is connected between the connecting piece and the fixed station. The vehicle traction test system occupies a small area and is not influenced or restricted by weather for environments; meanwhile hydraulic loading is employed, the loading capability is strong, and the measuring is accurate, safe and practical.
Description
Technical field
The utility model relates to vehicle towed technical field of measurement and test, particularly a kind of vehicle towed test macro.
Background technology
At present; The trailer traction test carriage is adopted in vehicle towed test more, and one side of dynamometer links to each other with car body through a cable wire, and another side is fixed on and is dragged on the vehicle; Advance forward after tested vechicle starts and draw cable wire to drive the back gradually and dragged vehicle, begin to skid until tested wheel.This test method is dragged vehicle to move owing to need tested vehicle to drive, and the space, place that therefore requires receives the restriction of weather condition very greatly and easily, causes test data inaccurate, wastes time and energy.
Therefore, how a kind of vehicle towed test macro is provided, reduces spatial volume, to reduce the influence to place and weather, the accuracy that improves test data becomes the important technological problems that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model provides a kind of vehicle towed test macro, reduces spatial volume, to reduce the influence to place and weather, the accuracy that improves test data.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of vehicle towed test macro is characterized in that, comprising:
Test platform, said test platform comprise rotatable simulation surface installation, and the input end of said simulation surface installation is connected with the propulsion system device;
Hydraulic loading system, said hydraulic loading system comprise variable hydraulic motor and adjustable surplus valve, and wherein, the output terminal of said variable hydraulic motor links to each other with said power switching device, and the oil circuit of said oil motor is provided with said adjustable surplus valve;
Tractive force test and output system, said tractive force test and output system comprise web member, dynamometer and fixed station, and wherein, said web member links to each other with said fixed station, and said device for measuring force is connected between said web member and the said fixed station.
Preferably, in the above-mentioned vehicle towed test macro, also comprise control system, said control system specifically comprises the record analysis system that display system, Loading Control System that is used to show the tractive force parameter and the data that measurement is come out write down and analyze.
Preferably, in the above-mentioned vehicle towed test macro, said hydraulic loading system also comprises fan motor, fan and is used to control the temperature conditioning unit of said fan motor import oil mass, and the import of said fan motor links to each other with the outlet of said adjustable surplus valve.
Preferably, in the above-mentioned vehicle towed test macro, said web member is a cable wire.
Preferably; In the above-mentioned vehicle towed test macro; Said power switching device is a gear speedup case, and the input shaft of said gear speedup case links to each other with said simulation surface installation, and the output terminal of said gear speedup case links to each other with the output terminal of said variable hydraulic motor.
Can find out that from above-mentioned technical scheme the vehicle towed test macro that the utility model provides comprises test platform, hydraulic loading system and tractive force test and output system.Wherein, test platform comprises rotatable simulation surface installation and the power switching device that is attached thereto.Hydraulic loading system comprises variable hydraulic motor and adjustable surplus valve, and the output terminal of variable hydraulic motor links to each other with power switching device, and the oil circuit of oil motor is provided with adjustable surplus valve.Tractive force test and output system comprise web member, device for measuring force and fixed station, and web member is used to connect fixed station and tested vehicle, and device for measuring force is connected between web member and the fixed station, is used to measure the power on the web member.Through above-mentioned test macro, tested vehicle places on the simulation surface installation, and vehicle links to each other with fixed station through web member.Tested vechicle starts and walking forward; Because tire or crawler belt and simulation surface installation produce friction force; Make the rotation of simulation surface installation; The simulation surface installation of rotation is given power switching device with transmission of power, after conversion, offers variable hydraulic motor, and the rotation oil suction of driving variable hydraulic motor is also discharged.Variable hydraulic motor is that the adjustable surplus valve that oil circuit is provided with carries out throttling to oil circuit; Form and add hydraulic coupling; Along with the variation of relief valve set pressure, load capability and then changes, and skids at the simulation surface installation until vehicle; This moment, the tractive force of tested vehicle reached maximum, through device for measuring force tractive force was at this moment measured.This test macro floor area is little, and does not receive influence and the restriction of weather environment to ground, owing to adopt hydraulic loaded, load capability is strong simultaneously, and it is accurate and safe and practical to measure.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the vehicle towed test macro that Fig. 1 provides for the utility model embodiment.
Embodiment
The utility model discloses the utility model a kind of vehicle towed test macro is provided, reduce spatial volume, to reduce influence, the accuracy that improves test data place and weather.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, wherein, the structural representation of the vehicle towed test macro that Fig. 1 provides for the utility model embodiment.
The utility model provides a kind of vehicle towed test macro, is used for the tractive force of measuring vehicle because adopt of vehicle towed test of the prior art dragged formula pull test car more, vehicle to be tested with dragged vehicle to pass through cable wire to link to each other, and between connect dynamometer.When beginning to test, carry out forward after tested vehicle starts and draw cable wire to drive the back gradually and dragged vehicle, begin to skid until wheel, this test mode receives the restriction of place and weather condition easily, and test data is inaccurate.In order to solve the shortcoming of prior art, the utility model provides a kind of vehicle towed test macro, comprises test platform 1, hydraulic loading system 2 and tractive force test and output system 4.
Wherein, Test platform 1 comprises rotatable simulation surface installation 5 and power switching device; And the input end of simulation surface installation 5 is connected with power switching device, in order to reduce the test macro occupation space, ground is made as rotating ground; To drive the rotation of simulating surface installation 5 through tested vehicle and the friction of simulating surface installation 5, and friction force will be changed through power switching device.
The pressure measurement loading system comprises variable hydraulic motor and adjustable surplus valve, and the output terminal of variable hydraulic motor links to each other with power switching device, and the oil circuit of oil motor is provided with adjustable surplus valve.Rely on the opening pressure of adjustable surplus valve, change loading with the moment of torsion that variable hydraulic motor provided, obtain different loading effects, the tractive force of corresponding tested vehicle is different.
Tractive force test and output system 4 comprise web member, device for measuring force and fixed station.Wherein web member is used for tested vehicle is linked to each other with fixed station.Device for measuring force is connected between web member and the fixed station; When after tested vehicle is opened, travelling forward, the pulling link, and fixed station is motionless; So just produce the effect of power; Device for measuring force comes out the power measurement between web member and the fixed station, and when tested vehicle skidded on simulation surface installation 5, the power that the device for measuring force measurement is come out was exactly real maximum drawbar pull.
The utility model is through being provided with the simulation surface installation 5 of rotation; Tested vehicle is fixed on the fixed station through web member; Open tested vehicle, produce friction force between the wheel of tested vehicle or crawler belt and the simulation surface installation 5, because tested vehicle is fixed; And simulation surface installation 5 is rotatable, so simulation surface installation 5 is owing to the effect of power is rotated.Loading to tested vehicle in the prior art realizes that through being dragged vehicle the vehicle towed test macro that the utility model provides provides a kind of hydraulic loading system 2.The power that to simulate surface installation 5 rotation through power switching device converts the power of transformation oil motor into; The rotation of driving variable hydraulic motor; Draw the fluid in the oil cylinder; And the fluid of drawing discharged, in order to realize different loading effects, be provided with adjustable surplus valve in the outlet of variable hydraulic motor.Through regulating the pressure that adjustable surplus valve is opened, change the oil pressure in the oil circuit of variable hydraulic motor, thereby change the moment of torsion that variable hydraulic motor provided, finally reach different loading effects.In order to measure the tractive force of tested vehicle; Also need device for measuring force; Device for measuring force is arranged between web member and the fixed station; Regulate the moment of torsion that pressure that adjustable surplus valve opens provides variable hydraulic motor and increase, thereby make tested vehicle on simulation surface installation 5, begin to skid, the power that this moment, device for measuring force was measured is exactly the tractive force of the tested vehicle that needs.
The vehicle towed test macro that the utility model provides; Utilize hydraulic loading system 2 to change in the prior art through the trailer traction test carriage; But balance each other through the loading force of fricative friction force and hydraulic loading system 2 generations, tested vehicle is loaded.This method reduces vehicle towed test macro occupation space, has lowered the requirement to ground, can in the laboratory, test, and can simulate the tractive force of vehicle under different weather conditions and the different environment simultaneously.The size of the opening pressure of the adjustable surplus valve through control hydraulic loading system 2 can be finely tuned the loading force that loads.
Size for the ease of the tractive force of controlling the tested vehicle in the vehicle towed test macro; The utility model also is provided with control system 3, comprises the record analysis system that display system, Loading Control System 3 that is used to show the tractive force parameter and the data that measurement is come out write down and analyze.
The tractive force of tested vehicle is shown to operating personnel through display system; The selection whether operating personnel load according to data presented again; And record analysis system will write down the data that measured and carry out analyzing and processing then; Finally obtain the size of the tractive force of needs, whole test process is safe and reliable, and the mechanization test can obtain test result rapidly.
Because the power that adjustable surplus valve is opened in adjustment constantly loads variable hydraulic motor; Can cause that the oil liquid temperature in the circulation system raises; And generate heat; In order to reduce the temperature of fluid, the hydraulic loading system 2 among the utility model embodiment also comprises fan motor, is used to control the temperature conditioning unit and the fluid cooling system of fan motor import oil mass.Wherein, the outlet of the import of fan motor and adjustable surplus valve links to each other.
The fluid heating that hydraulic loaded causes, the oil liquid pressure that produces during capable of using the loading is connected fan motor, makes the fan motor rotation and drives fan work, and fan is taken away the heat that fluid produces.Temperature conditioning unit is through the temperature of the fluid in the sensor control hydraulic loading system 2, and the rotating speed of control fan, thereby hydraulic loading system 2 is cooled off, and makes hydraulic loading system 2 realize the self-adaptation of temperature, and assurance fluid is worked in optimum temperature range.
Web member in the vehicle towed test macro that provides among the utility model embodiment is a cable wire, it will be understood by those skilled in the art that to connect through cable, so long as intensity that can meet the demands and toughness get final product.
Power converter device in the vehicle towed test macro that the utility model provides is a gear speedup case; Because the rotating speed of simulation surface installation 5 frictionallies rotation is very little; In order to reach the minimum speed of variable hydraulic motor; Be provided with gear speedup case, and the input end of gear speedup case with the simulation surface installation 5 the axle link to each other through shaft coupling, the output terminal of gear speedup case links to each other through shaft coupling with the output terminal of variable hydraulic motor.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. a vehicle towed test macro is characterized in that, comprising:
Test platform, said test platform comprise rotatable simulation surface installation, and the input end of said simulation surface installation is connected with power switching device;
Hydraulic loading system, said hydraulic loading system comprise variable hydraulic motor and adjustable surplus valve, and wherein, the output terminal of said variable hydraulic motor links to each other with said power switching device, and the oil circuit of said oil motor is provided with said adjustable surplus valve;
Tractive force test and output system, said tractive force test and output system comprise web member, dynamometer and fixed station, and wherein, said web member links to each other with said fixed station, and said device for measuring force is connected between said web member and the said fixed station.
2. vehicle towed test macro according to claim 1; It is characterized in that; Also comprise control system, said control system specifically comprises the record analysis system that display system, Loading Control System that is used to show the tractive force parameter and the data that measurement is come out write down and analyze.
3. vehicle towed test macro according to claim 1; It is characterized in that; Said hydraulic loading system also comprises fan motor, fan and is used to control the temperature conditioning unit of said fan motor import oil mass, and the import of said fan motor links to each other with the outlet of said adjustable surplus valve.
4. vehicle towed test macro according to claim 1, said web member are cable wire.
5. vehicle towed test macro according to claim 1; Said power switching device is a gear speedup case; And the input shaft of said gear speedup case links to each other with said simulation surface installation, and the output terminal of said gear speedup case links to each other with the output terminal of said variable hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220017288XU CN202485849U (en) | 2012-01-13 | 2012-01-13 | Vehicle traction test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220017288XU CN202485849U (en) | 2012-01-13 | 2012-01-13 | Vehicle traction test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485849U true CN202485849U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220017288XU Expired - Lifetime CN202485849U (en) | 2012-01-13 | 2012-01-13 | Vehicle traction test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568456A (en) * | 2013-10-10 | 2015-04-29 | 北汽福田汽车股份有限公司 | Method and system for testing traction of limited slip differential |
| CN107677488A (en) * | 2017-10-20 | 2018-02-09 | 山东省农业机械科学研究院 | The system and traction power method of testing loaded using fixed loading device to tested vehicle |
-
2012
- 2012-01-13 CN CN201220017288XU patent/CN202485849U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568456A (en) * | 2013-10-10 | 2015-04-29 | 北汽福田汽车股份有限公司 | Method and system for testing traction of limited slip differential |
| CN107677488A (en) * | 2017-10-20 | 2018-02-09 | 山东省农业机械科学研究院 | The system and traction power method of testing loaded using fixed loading device to tested vehicle |
| CN107677488B (en) * | 2017-10-20 | 2024-01-23 | 山东省农业机械科学研究院 | System for loading tested vehicle by adopting fixed loading device and traction power testing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
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| CX01 | Expiry of patent term |