Electronic control pneumatic gear shifting device of tractor transmission
A technology of pneumatic shifting and transmission, applied in transmission control, mechanical equipment, components with teeth, etc., can solve the influence of tractor fuel economy and shifting smoothness, poor operation stability and operation control, Driver fatigue and other problems, to achieve the effect of improving flexibility, simple structure, and reducing labor intensity
Inactive Publication Date: 2016-07-20
WUHAN UNIV OF TECH
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Problems solved by technology
However, most domestic tractors use manual shifting, and most of the clutch separation is controlled by pedal mechanical transmission. The separation is relatively difficult, and there will be problems such as difficulty in shifting when shifting gears, and the transmission efficiency is low, and the operation stability
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[0020] The present invention will be described in further detail below based on specific embodiments and in conjunction with the accompanying drawings.
[0021] refer to figure 1 As shown, the tractor transmission electronically controlled pneumatic shifting device according to the present invention includes a vehicle air source, a gear shift actuator, a clutch operating mechanism and a controller, wherein the vehicle air source includes an air compressor 1, an air storage tank 2. The air filter regulator 4, the shift actuator includes the first three-position five-way pneumatic solenoid valve 5, the first two-position three-way pneumatic solenoid valve 6, the second three-position five-way pneumatic solenoid valve 12, the second two One-position three-way pneumatic solenoid valve 13, first shift cylinder 11, second shift cylinder 18, clutch operating mechanism includes third two-position three-way pneumatic solenoid valve 19, booster cylinder 20, control valve 31 and pedal me...
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An electronic control pneumatic gear shifting device of a tractor transmission comprises a whole vehicle air source, a gear shifting execution mechanism, a clutch operation mechanism and a controller. The whole vehicle air source comprises an air compressor, an air storage tank and an air filtration regulator. The gear shifting execution mechanism comprises a first three-position five-way pneumatic electromagnetic valve, a first two-position three-way pneumatic electromagnetic valve, a second three-position five-way pneumatic electromagnetic valve, a second two-position three-way pneumatic electromagnetic valve, a first gear shifting cylinder and a second gear shifting cylinder. The clutch operation mechanism comprises a third two-position three-way pneumatic electromagnetic valve, an assistance cylinder, a control valve and a pedal mechanical transmission device. The air compressor is connected with the pneumatic electromagnetic valves through an air conveying pipeline by means of the air storage tank and the air filtration regulator. All the pneumatic electromagnetic valves are connected with the controller. An air inlet of a control valve is connected with the whole vehicle air source through the air conveying pipeline. Electronic control pneumatic gear shifting and pneumatic assistance are adopted for the electronic control pneumatic gear shifting device, and therefore the operation comfort and the work efficiency of the transmission are improved, the fatigue strength is lowered, and the automation degree of a tractor is improved.
Description
technical field [0001] The invention relates to a shifting device, in particular to an electronically controlled pneumatic shifting device for a tractor transmission. Background technique [0002] my country is a large agricultural country, and it has the largest number of tractors in the world. In recent years, the country has continuously increased its investment in agricultural machinery, making tractors play an increasingly important role in agricultural production and the national economy. However, most domestic tractors use manual shifting, and most of the clutch separation is controlled by pedal mechanical transmission. The separation is relatively difficult, and there will be problems such as difficulty in shifting when shifting gears, and the transmission efficiency is low, and the operation stability and control are low. The performance is not good, and different driving levels will have a great impact on the tractor’s fuel economy and shifting smoothness. At the ...
Claims
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Login to view more IPC IPC(8): F16H59/02F16H61/30
CPCF16H59/02F16H61/30
Inventor 余际星胡明志潘子安赵永浩李鲍刘运展
Owner WUHAN UNIV OF TECH
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