Non-road vehicle hydraulic four-wheel drive hydraulic system control valve group
A four-wheel drive, hydraulic system technology, applied in the field of non-road vehicles, can solve the problems of difficult wheelbase change, no anti-skid, large structure size, etc., to achieve the effect of easy installation and maintenance, saving space and cost
Active Publication Date: 2018-01-12
JOTEC INT HEAVY IND QINGDAO
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Problems solved by technology
[0002] At present, non-road vehicles, such as imported and high-end self-propelled corn harvesting machines, use hydraulic four-wheel drive, and most rear-wheel drives use variable motor acceleration and deceleration boxes. This design is large in size, expensive, and difficult to change the wheelbase. , and no anti-skid function
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] Such as figure 1 As shown, the non-road vehicle hydraulic four-wheel drive hydraulic system control valve group includes a hydraulic manifold 1 and a connecting flange 2 , a solenoid valve 3 and a pipe joint 4 arranged on the hydraulic manifold 1 . to combine Figure 2-3 , the solenoid valve 3 includes first, second, third, and fourth solenoid valves A, B, C, and D; correspondingly, there are four solenoid valve electromagnets, which are first, second, third, and fourth Solenoid valve electromagnets a, b, c, d; three pipe joints 4, one of which is connected to the front motor 5, and the other two pipe joints 4 are respectively connected to two rear motors 6; come out from the high-pressure pump 7 The hydraulic oil enters the front motor 5 through the connecting flange 2.
[0020] Combine below Figure 2-3 Specifically introduce the working pr...
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The invention discloses a non-road vehicle hydraulic four-wheel drive hydraulic system control valve group, which includes a hydraulic integrated block, a connecting flange arranged on the hydraulic integrated block, a solenoid valve and a pipe joint; the solenoid valve includes first, second, The third and fourth electromagnetic valves; correspondingly, the electromagnetic valve electromagnets include the first, second, third, and fourth electromagnetic valve electromagnets; there are 3 pipe joints, one of which is connected to the front motor, and in addition The two pipe joints are respectively connected with the two rear motors; the hydraulic oil from the high-pressure pump enters the front motor through the connecting flange. By integrating the free wheel and anti-skid function into one integrated block, the entire integrated block is directly installed on the flange mounting surface of the front motor through the screws of the oil inlet flange, which is easy to install and maintain, and saves space and cost.
Description
technical field [0001] The invention relates to the technical field of non-road vehicles, in particular to a control valve group of a hydraulic four-wheel drive hydraulic system of a non-road vehicle. Background technique [0002] At present, non-road vehicles, such as imported and high-end self-propelled corn harvesting machines, use hydraulic four-wheel drive, and most rear-wheel drives use variable motor acceleration and deceleration boxes. This design is large in size, expensive, and difficult to change the wheelbase. , and no anti-skid function. [0003] In order to save installation space, reduce costs and realize different wheelbases quickly, we adopt a structure in which two quantitative high-torque motors directly drive the rear wheels. Contents of the invention [0004] The object of the present invention is to provide a non-road vehicle hydraulic four-wheel drive hydraulic system control valve group in order to overcome the shortcomings of the above-mentioned p...
Claims
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IPC IPC(8): F15B13/08
CPCF15B13/0803F15B2013/006
Inventor 刘旭丰王军伟马喜林由盛昌
Owner JOTEC INT HEAVY IND QINGDAO