CN207423541U - The system loaded using fixed loading device to tested vehicle - Google Patents
The system loaded using fixed loading device to tested vehicle Download PDFInfo
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- CN207423541U CN207423541U CN201721355396.7U CN201721355396U CN207423541U CN 207423541 U CN207423541 U CN 207423541U CN 201721355396 U CN201721355396 U CN 201721355396U CN 207423541 U CN207423541 U CN 207423541U
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Abstract
The utility model provides a kind of system loaded using fixed loading device to tested vehicle, the accuracy, stability and security of tested vehicle pulling test can be effectively improved, the labor intensity of testing crew is reduced, extends the application range of new technology, enriches industry means of testing.A kind of system loaded using fixed loading device to tested vehicle, include engine base, plunger pump, hydraulic station, gear, winch, steel wire rope and reversion motor including driving device, plunger pump, gear, winch and reversion motor are arranged on engine base, hydraulic station is connected with plunger pump, plunger pump output terminal connection speed variator structure, connection winch, winch are connected through steel wire rope with tested vehicle simultaneously for gear and reversion motor；It with vehicle status parameters measuring device, is arranged on tested vehicle, is acquired for tested vehicle state parameter.
Description
Technical field
The utility model is related to a kind of experimental rigs, and in particular to it is a kind of using fixed loading device to tested vehicle into
The system of row loading.
Background technology
In recent years, Tendency of Agricultural Machinery in China achieved huge achievement, and agro-based industry has obtained tremendous development.In tested vehicle
During identification and quality testing, traction power experiment is one of important test event.It can be obtained by this experiment tested
Try the important performance indexes such as the maximum drawbar pull of tested vehicle, maximum traction power.These indexs are to judging tested vehicle quality
It is whether qualified or whether to reach design requirement most important.
Traction load loading system application starts from 1920's Mo, but so far, only have a small number of states in the world
The research unit and production division of family have developed the load on of various types, different load grade according to different test requests
Equipment.Such as the First load converted by Cliver1885 tested vehicles of Nebraska,USA tested vehicle laboratory
Vehicle, the power wagon that the power wagon of Italian Bai Lun universities agricultural machinery Research Institute, agricultural machinery experiment station of German agriculture association develop etc.,
The method simple refit that the earliest power wagon in China is utilized in installation test instrumentation on the vehicle slightly larger than tested test run forms.
Until in recent years, domestic units concerned successively have developed the special power wagon that different industries use, as Xiamen City's product quality is supervised
Superintend and direct the multi-functional load tractors of FHC300 types 300kN by heavy-duty off-road vehicle chassis refit that institute is examined to develop, Ministry of Agriculture's agricultural machinery
Identify power wagon converted by -1854 type large size bow steering type tested vehicle of Dongfanghong of master station etc..
The main feature for summarizing domestic and international power wagon is as follows：
1）Dynamometer machine mostly using air-cooled or water-cooled electric eddy current dynamometer, direct current dynamometer, hydraulic loading device, fan and
Engine exhaust and brake etc., will be by instruction carriage by controllable dynamometer machine in addition to using fan and engine exhaust and brake
Output power is dispersed into air in the form of heat, realizes the loading procedure to being tested vehicle；
2）Chassis vehicle is reequiped using all-wheel drive vehicles or tested vehicle, has voluntarily ability, but repacking means, structure
It is different；
3）Dynamometer machine test parameter is complete, but can not realize continuous measurement experiment process in real time, sub-load vehicle tool mostly
There is automatic control function；Test process labor intensity is big, and test period is long, and test result accuracy is low.
Traction power load on equipment is to carry out the necessary means of surface car traction investigation and test evaluation, right
There is important role in the research and development of surface car and performance evaluation.Only have a few countries in the world, according to different test requests
The traction load vehicle with special adaptive is had developed as loading equipemtn.It is domestic to use make-shift equipment, defect mostly for a long time
It is：Experimentation cost is high, efficiency is low, Loading Control is unstable, the confidence level of result is relatively low.
Utility model content
The utility model aim is to provide a kind of system loaded using fixed loading device to tested vehicle, can
The accuracy, stability and security of tested vehicle pulling test are effectively improved, reduces the labor intensity of testing crew, extension is new
The application range of technology enriches industry means of testing.
To achieve these goals, the utility model uses following technical scheme：
A kind of system loaded using fixed loading device to tested vehicle, including
Driving device includes engine base, plunger pump, hydraulic station, gear, winch, steel wire rope and inverts motor, plunger pump,
Gear, winch and reversion motor are arranged on engine base, and hydraulic station is connected with plunger pump, and the connection of plunger pump output terminal becomes
Connection winch, winch are connected through steel wire rope with tested vehicle simultaneously for fast mechanism, gear and reversion motor；With
Vehicle status parameters measuring device, is arranged on tested vehicle, is acquired for tested vehicle state parameter.
The above-mentioned system preferred embodiment loaded using fixed loading device to tested vehicle, vehicle status parameters are surveyed
Amount device includes：
Drawbar load sensing mechanism is arranged on steel wire rope and tested vehicle junction, and tested vehicle application is led for measuring
Gravitation；
Wheel revolutions sensor is arranged on tested vehicle wheel, for measuring tested vehicle wheel revolutions；
GPS velocity sensor is arranged on tested vehicle front end, for measure the travel speed of tested vehicle and traveling away from
From；
Oil consumption sensor, is arranged on tested vehicle, to being tested the fuel consumption rate of tested vehicle.
The above-mentioned system preferred embodiment loaded using fixed loading device to tested vehicle, hydraulic station include hydraulic pressure
Fuel tank, coarse filter, auxiliary hydraulic pump, fine filter, check valve, the first solenoid directional control valve, electro-hydraulic proportional throttle valve, oil-water cooler
And second solenoid directional control valve, hydraulic oil container outlet connection coarse filter, coarse filter are connected by auxiliary hydraulic pump with fine cleaner, carefully
Filter is also connected with one-way valve inlet end, and one-way valved outlet end connects the first solenoid directional control valve and the connection of the second solenoid directional control valve respectively
Two interfaces of plunger pump, the second electromagnetic switch valve outlet connect successively by throttle valve, oil-water cooler with hydraulic oil container.
The above-mentioned system preferred embodiment loaded using fixed loading device to tested vehicle further includes control system
System, including vehicle-mounted data processing terminal, wireless transmitter module, wireless receiving module and main control computer, vehicle-mounted data processing terminal
For receiving vehicle status parameters measuring device gathered data and being handled, wireless transmitter module is used for the data that will be handled and passes
Wireless receiving module is defeated by, main control computer is communicated with vehicle-mounted data processing terminal.
It is a kind of to carry out traction power experiment survey using the system loaded using fixed loading device to tested vehicle
Method for testing comprises the following steps：
1）Set-up procedure:Tested vehicle travels 20m in no tractive load, with the speed of 3.5km/h, by GPS speed
Travel speed and operating range that sensor 12 obtains tested vehicle are spent, obtains tested quilt respectively by wheel revolutions sensor 10
Measuring car is left and right to take turns the number of turns turned over、, you can obtain the dynamic radius index of tested vehicle；
2）Tested vehicle is tested:Testing crew carries out electrodeless tune by control system to the output power of plunger pump
It is fixed, apply positive tractive resistance and speed to being tested tractor through gear, winch and steel wire rope, oil consumption sensor obtains
The fuel oil consumed during tested vehicle experiment must be tested, leading for tested tested vehicle is obtained by drawbar load sensing mechanism
Gravitation, the travel speed of tested vehicle is obtained by GPS velocity sensor 12And operating range, by wheel revolutions sensor
10 obtain the number of turns that the left and right wheel of tested tested vehicle turns over respectively、, then tested vehicle slippage rate, it is tested tested vehicle traction power；
3）When tested tractor completes a test stroke, testing crew is switched by control system first in hydraulic system
The station of solenoid directional control valve and the second solenoid directional control valve, reversely connects plunger pump, and starting is retracted by reversion motor by tested vehicle
Position starts next test stroke.
The beneficial effects of the utility model are：
The utility model can more convenient, fast and accurately complete the test of tested vehicle traction power；This practicality is new
The testing program that type is implemented monitors the test data of tested vehicle using computer remote, according to test data in real time
Apply accurate, stable, continuously adjustable tractive resistance to being tested vehicle, experiment process loading is accurate, easy to operate, automation
Degree is high, effectively increases the security of experiment.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is hydraulic station operation principle schematic diagram.
Figure label：1st, engine base, 2, plunger pump, 3, hydraulic station, 4, gear, 5, winch, 6, main control computer, 7, wireless
Receiving module, 8, steel wire rope, 9, drawbar load sensing mechanism, 10, wheel revolutions sensor, 11, oil consumption sensor, 12, GPS velocity passes
Sensor, 13, wireless transmitter module, 14, vehicle-mounted data processing terminal, 15, reversion motor, 16, hydraulic oil container, 17, coarse filter,
18th, auxiliary hydraulic pump, 19, fine filter, 20, check valve, the 21, second solenoid directional control valve, 22, overflow valve, 23, electric-hydraulic proportion throttling
Valve, 24, oil-water cooler, the 25, first solenoid directional control valve.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, develop simultaneously implementation referring to the drawings
The utility model is further described in example.
A kind of system loaded using fixed loading device to tested vehicle, including driving device, vehicle-state
Parameter measuring apparatus and control system.
Driving device applies positive resistance and reversal interlocking relay for tested vehicle, including engine base 1, plunger pump 2, hydraulic station 3,
Gear 4, winch 5, steel wire rope 8 and reversion motor 15, plunger pump 2, gear 4, winch 5 and reversion motor 15 are respectively provided with
On engine base 1, hydraulic station 3 is connected with plunger pump 2,2 output terminal connection speed variator structure 4 of plunger pump, gear 4 and reversion electricity
Connection winch 5, winch 5 are connected machine 15 through steel wire rope 8 with tested vehicle simultaneously；
Vehicle status parameters measuring device is acquired for tested vehicle state parameter, vehicle status parameters measurement dress
Put including：Drawbar load sensing mechanism 9 is arranged on steel wire rope 8 and tested vehicle junction, and tested vehicle application is led for measuring
Gravitation；Wheel revolutions sensor 10 is arranged on tested vehicle wheel, for measuring tested vehicle wheel revolutions；GPS velocity passes
Sensor 12 is arranged on tested vehicle front end, for measuring the travel speed of tested vehicle and operating range；Oil consumption sensor 11,
Tested vehicle is arranged on, to being tested the fuel consumption rate of tested vehicle.
Hydraulic station 3 includes hydraulic oil container 16, coarse filter 17, auxiliary hydraulic pump 18, fine filter 19, the 20, first electricity of check valve
Magnetic reversal valve, electro-hydraulic proportional throttle valve 23,24 and second solenoid directional control valve of oil-water cooler, the outlet of hydraulic oil container 16 connection coarse filtration
Device 17, coarse filter 17 are connected by auxiliary hydraulic pump 18 with fine cleaner, and fine cleaner is also connected with 20 arrival end of check valve, check valve
20 ports of export connect the first solenoid directional control valve respectively and the second solenoid directional control valve connection 2 two interfaces of plunger pump, the second electromagnetism change
It is connected successively by throttle valve, oil-water cooler 24 with hydraulic oil container 16 to valve outlet.
Control system, including vehicle-mounted data processing terminal 14, wireless transmitter module 13, wireless receiving module 7 and master control electricity
Brain 6, vehicle-mounted data processing terminal 14 are used to receive vehicle status parameters measuring device gathered data and be handled, wireless transmission
Module 13 is used to the data of processing being transferred to wireless receiving module 7, and main control computer 6 is communicated with vehicle-mounted data processing terminal 14.
It is a kind of to carry out traction power experiment survey using the system loaded using fixed loading device to tested vehicle
Method for testing comprises the following steps：
1）Set-up procedure:
A, vehicle status parameters measuring device, vehicle-mounted data processing terminal 14 and wireless transmitter module 13 are mounted on tested
In test run；
B, tested vehicle travels 20m, by GPS velocity sensor 12 in no tractive load with the speed of 3.5km/h
Obtain the travel speed and operating range of tested vehicle, is obtained respectively by wheel revolutions sensor 10 a tested tested vehicle left side,
The number of turns that right wheel turns over、, you can obtain the dynamic radius index of tested vehicle, steel wire rope 8 is hung
On tested vehicle traction sensor 9；
2）Tested vehicle is tested:
Tested vehicle is tested:Testing crew carries out electrodeless tune by control system to the output power of plunger pump 2
It is fixed, apply positive tractive resistance and speed to being tested tractor through gear 4, winch 5 and steel wire rope 8, positioned at control
The testing crew of room monitors tested vehicle status parameters in real time by main control computer 6, and to plunger pump 2 in 5 system of winch
Output displacement q and output pressure p are controlled in real time, and control process both can be by the use of tractive resistance as object function, can also
By the use of tested vehicle slippage rate as object function, apply stable, continuously adjustable tractive resistance and speed to being tested vehicle
Degree, the testing crew positioned at control room monitor tested vehicle status parameters in real time by main control computer 6, and to 5 system of winch
The output displacement q and output pressure p of middle plunger pump 2 are controlled in real time, and control process both can be by the use of tractive resistance as target
Function can also apply stable, continuously adjustable lead by the use of tested vehicle slippage rate as object function to being tested vehicle
Draw resistance and speed, at least distance of 20m or the distance of maintenance 20s are persistently travelled to be tested its straight line（When taking in the two
Between compared with elder）For a measurement period, record traction power, tractive force, speed, slippage rate, oil consumption and environmental aspect, until trackslipping
Rate meets test requirements document as defined in standard, and wherein oil consumption sensor 11 obtains what is consumed during tested tested vehicle is tested
Fuel oil, the tractive force of tested tested vehicle is obtained by drawbar load sensing mechanism 9, obtained by GPS velocity sensor 12 tested
The travel speed of vehicleAnd operating range, obtain the left and right rotation of tested tested vehicle respectively by wheel revolutions sensor 10
The number of turns crossed、, then tested vehicle slippage rate, it is tested tested vehicle traction power；
3）When tested tractor completes a test stroke, testing crew is switched by control system first in hydraulic system
The station of solenoid directional control valve and the second solenoid directional control valve is reversely connected plunger pump 2, has been retracted by tested vehicle by reversion motor 15
Beginning position starts next test stroke.
By the use of tested vehicle traction as object function in above-mentioned steps, pilot plunger pumps 2 output displacement q and output
Pressure p controls the tractive force of each test period, and tractive force successively increases, until slippage rate approaches but no more than 15%；With quilt
Vehicle slippage rate is tested as object function, the output displacement q and output pressure p of pilot plunger pump 2 control each test period
Slippage rate, successively increase the slippage rate of each test period, until slippage rate approaches but no more than 15%.
Above-mentioned specific embodiment is only the specific case of the utility model, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent implementations of variation.But it is every without departing from the utility model technical principle on the premise of, according to the utility model
Any simple modification, equivalent variations and the remodeling that technical spirit makees embodiment of above, should all fall into the utility model
Scope of patent protection.
Claims (4)
1. a kind of system loaded using fixed loading device to tested vehicle, it is characterised in that:Including
Driving device includes engine base, plunger pump, hydraulic station, gear, winch, steel wire rope and reversion motor, plunger pump, speed change
Mechanism, winch and reversion motor are arranged on engine base, and hydraulic station is connected with plunger pump, plunger pump output terminal connection speed variator
Connection winch, winch are connected through steel wire rope with tested vehicle simultaneously for structure, gear and reversion motor；
Vehicle status parameters measuring device, is arranged on tested vehicle, is acquired for tested vehicle state parameter.
2. the system loaded according to claim 1 using fixed loading device to tested vehicle, it is characterised in that:
Vehicle status parameters measuring device includes：
Drawbar load sensing mechanism is arranged on steel wire rope and tested vehicle junction, for measuring the tractive force applied to tested vehicle；
Wheel revolutions sensor is arranged on tested vehicle wheel, for measuring tested vehicle wheel revolutions；
GPS velocity sensor is arranged on tested vehicle front end, for measuring the travel speed of tested vehicle and operating range；
Oil consumption sensor, is arranged on tested vehicle, to being tested the fuel consumption rate of tested vehicle.
3. the system loaded according to claim 2 using fixed loading device to tested vehicle, it is characterised in that:
Hydraulic station includes hydraulic oil container, coarse filter, auxiliary hydraulic pump, fine filter, check valve, the first solenoid directional control valve, electric-hydraulic proportion section
Valve, oil-water cooler and the second solenoid directional control valve are flowed, hydraulic oil container outlet connects coarse filter, and coarse filter is same by auxiliary hydraulic pump
Fine cleaner is connected, and fine cleaner is also connected with one-way valve inlet end, and one-way valved outlet end connects the first solenoid directional control valve and second respectively
Solenoid directional control valve connects two interfaces of plunger pump, and the second electromagnetic switch valve outlet passes through throttle valve, oil-water cooler and liquid successively
Pressure oil case connects.
4. the system loaded according to claim 3 using fixed loading device to tested vehicle, it is characterised in that:
It further includes control system, including vehicle-mounted data processing terminal, wireless transmitter module, wireless receiving module and main control computer, vehicle
Data processing terminal is carried for receiving vehicle status parameters measuring device gathered data and being handled, wireless transmitter module is used for
The data of processing are transferred to wireless receiving module, main control computer is communicated with vehicle-mounted data processing terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355396.7U CN207423541U (en) | 2017-10-20 | 2017-10-20 | The system loaded using fixed loading device to tested vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355396.7U CN207423541U (en) | 2017-10-20 | 2017-10-20 | The system loaded using fixed loading device to tested vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207423541U true CN207423541U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721355396.7U Expired - Fee Related CN207423541U (en) | 2017-10-20 | 2017-10-20 | The system loaded using fixed loading device to tested vehicle |
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| CN (1) | CN207423541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112611571A (en) * | 2020-11-20 | 2021-04-06 | 西安法士特汽车传动有限公司 | Whole tractor loading test device and test method |
-
2017
- 2017-10-20 CN CN201721355396.7U patent/CN207423541U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112611571A (en) * | 2020-11-20 | 2021-04-06 | 西安法士特汽车传动有限公司 | Whole tractor loading test device and test method |
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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 |
Granted publication date: 20180529 Termination date: 20201020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |