Multifunctional integrated back cover assembly of high-power united pump and motor

Abstract

The invention discloses a multifunctional integrated back cover assembly of a high-power united pump and motor. The multifunctional integrated back cover assembly of the high-power united pump and motor comprises a back cover. An oil supplementary valve bank is arranged on the upper portion of the back cover in an axial symmetry manner and used for supplementing lubricating oil. A high-pressure oil path communicating with the oil supplementary valve bank is arranged in the middle of the back cover. A boss structure is arranged on the binding face side and is used for supporting a flow distributing plate. A round baffle is arranged so as to enhance support of a rotor component. Drum-shaped locating pins are arranged so as to optimally locate a static part in the rotor component. Tail bearing lubricating oil channel groups are located at a concave position on the center line of the back cover on the exposed face side, the lubricating oil is guided in from the oil supplementing valve bank and enters the tail bearing lubricating oil channel groups. A bolt group connected with a shell is arranged on the outer rim of the upper edge of the back cover and is distributed in an axis symmetry manner. A backflow oil channel communicating with the high-pressure oil channel is arranged on the lower portion of the back cover. The backflow oil channel provides safety protection in combination with a high-pressure valve bank under the working condition that the whole machine is overloaded. The multifunctional integrated back cover assembly of the high-power united pump and motor is compact in structure, light in weight and wider in application range.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pumps and hydraulic motors, and relates to a high-power conjoined pump-motor multifunctional integrated rear cover assembly. Background technique [0002] The hydraulic pump and the hydraulic motor are independently produced and configured into the hydraulic stepless drive system. The two are connected by multiple oil pipes with different functions. As the power level of the system continues to rise, this split high-power combination The pump motor has many problems such as poor reliability, low pressure level and low power density. Combined design of hydraulic pump and hydraulic motor, the above-mentioned external oil pipes are made into a multifunctional integrated rear cover assembly of the combined pump motor, and at the same time realize the functions of closed high-pressure oil circuit, oil supply circuit, lubricating oil circuit, auxiliary support, etc. At present, the design of integrat...

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Problems solved by technology

[0002] The hydraulic pump and the hydraulic motor are independently produced and configured into the hydraulic stepless drive system. The two are connected by multiple oil pipes with different functions. As the power level of the system continues to rise, this split high-power combination The pump motor has many problems such as poor reliability, low pressure level and low power density

Combined design of hydraulic pump and hydraulic motor, the above-mentioned external oil pipes are made into a multi-functional integrated rear cover assembly of the combined pump motor, and at the same time realize the functions of closed high-pressure oil circuit, oil supply circuit, lubricating oil circuit, auxiliary support, etc. At present, the design of integrated distribution components of some products has problems such as too complicated shape structure, too heavy weight, too large volume, and it is difficult to meet the installation requirements of compact spaces.

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