Clutch and oil cylinder comprehensive control hydraulic system

Abstract

The invention discloses a clutch and oil cylinder comprehensive control hydraulic system, and belongs to the technical field of hydraulic control. The system comprises a first balance valve block, a second balance valve block and a third balance valve block; one end of the first balance valve block is connected with an oil tank through a first control valve and an oil pump, and the other end of the first balance valve block is connected with a fifth oil cylinder set and a sixth oil cylinder set in parallel; one end of the second balance valve block is connected with the oil tank through a third control valve and the oil pump, and the other end of the second balance valve block is connected with a first oil cylinder set and a second oil cylinder set; and one end of the third balance valve block is connected with the oil tank through a second control valve and the oil pump, and the other end of the third balance valve body is connected with a third oil cylinder and a fourth oil cylinder in parallel. When the clutch and oil cylinder comprehensive control hydraulic system is used for controlling a plurality of oil cylinders or clutches which act synchronously, the number of used valves can be reduced, and an oil way structure is greatly simplified. In addition, a triple oil pump set is adopted as a power source, and an oil way can be simplified easily.

Description

technical field [0001] The invention relates to a hydraulic system for integrated control of a clutch and an oil cylinder, and belongs to the technical field of hydraulic control. Background technique [0002] At present, the hydraulic system on the transmission mainly controls the clutch or brake. With the development and diversification of the transmission, higher requirements are placed on the control system. The hydraulic system not only needs to complete the control of the clutch and brake, but also needs to control various The functional oil cylinder performs related control. [0003] For this reason, the Chinese patent document with the publication number CN110792646A discloses a hydraulic system for integrated control of a clutch and an oil cylinder. When the oil pump works, the second safety valve controls the maximum pressure of the entire hydraulic system, and the second proportional valve passes the first A limit valve controls the position of the first oil cyli...

AI Technical Summary

Problems solved by technology

[0004] However, the control of each clutch in this system requires the use of two-position three-way valves and neutral transition valves, and the control of each oil cylinder requires the use of limit valves and proportional valves. This system is used to control multiple synchronous actions When using a specific oil cylinder or clutch, a large number of valves will be used accordingly, resulting in an overly complicated oil circuit

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