A transmission oil supply system
An oil supply system and transmission technology, applied in transmission parts, transmission control, components with teeth, etc., can solve the problem of insufficient flow of the lubrication subsystem, so as to improve the insufficient lubrication flow and the insufficient oil supply flow. Effect
Active Publication Date: 2017-06-16
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
[0006] In order to solve the above-mentioned problems existing in the prior art, the present invention is to design a transmission oil supply system that improves the oil supply speed of shifting and steering circuits under complex working conditions and improves the insufficient flow of the lubrication subsystem.
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[0028] Below in conjunction with accompanying drawing, the present invention will be further described: as Figure 1-2 As shown, a transmission oil supply system includes a pump group 3, a control valve group 4, a lubricating and replenishing oil pump 11, a lubricating and replenishing oil control valve group 5, an accumulator 8 and a main constant pressure valve 6, wherein the lubricating and replenishing oil control Valve group 5 can use two two-position two-way electro-hydraulic reversing valves connected in parallel such as figure 1 shown, or directly adopt a two-position three-way electro-hydraulic directional valve such as figure 2 as shown, figure 1 and figure 2 The oil supply system shown achieves the same effect.
[0029] The present invention is divided into two kinds of stable working conditions, one is a low-pressure working condition, that is, the load pressure of the shift steering circuit is relatively small, and the left position of the control valve group...
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The invention discloses an oil supply system for a transmission device. The oil supply system comprises a pump set, a control valve bank, a lubricating oil supplementing pump, a lubricating oil supplementing control valve bank, an energy accumulator and a main constant pressure valve. According to the oil supply system, through the lubricating oil supplementing pump and the control valve bank thereof, the lubricating oil supplementing pump adjusts the oil supply direction according to the load working condition on the premise that the load working condition changes, and oil is supplied to a gear shifting and steering loop and a lubricating loop in the oil supply system, so that the oil supply requirements of all the loops are met. Under a low-pressure working condition, through the reversing effect of the lubricating oil supplementing control valve bank, the lubricating oil supplementing pump is made to supply oil to a lubricating system, and therefore the situation that the lubricating flow of the transmission device is not enough under the low-pressure working condition in the prior art is avoided. According to the oil supply system, the energy accumulator is used for supplying instant high flow to a gear shifting and steering system under the variable load working conditions, the situation that instant oil supply of the gear shifting and steering loop is not enough due to the fact that oil supply of the hydraulic pump set is not in time is avoided, and rapidness and accuracy of gear shifting and steering are improved.
Description
technical field [0001] The invention belongs to the technical field of hydraulic oil supply systems for vehicle transmissions, and specifically relates to an efficient and coordinated transmission oil supply system. The device can be lubricated in time, and the hydraulic oil supply system can be reliably shifted and turned. Background technique [0002] The transmission oil supply system is the core component of the vehicle. It mainly includes hydraulic pump group, control valve group, shift steering subsystem and cooling and lubrication subsystem, etc. [0003] The vehicle engine drives the hydraulic pump group to supply oil to the system, and the control valve group distributes the flow of the hydraulic pump according to different working conditions to supply the shift steering subsystem and the cooling and lubrication subsystem respectively. [0004] When the vehicle shifts and turns, the load of the shifting and steering circuit changes suddenly. At this time, the oil ...
Claims
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IPC IPC(8): F16H57/04F16H61/30
CPCF16H57/04F16H57/0434F16H61/30F16H2061/305
Inventor 马文琦关广丰吕庆军陈溪熊伟罗小梅熊庆辉王海涛
Owner DALIAN MARITIME UNIVERSITY