High-flow hydraulic pump unit oil supply system in transfer parallel connection

An oil supply system, hydraulic pump technology, applied in servo motor components, fluid pressure actuation devices, servo meter circuits, etc., can solve the problems of large space volume, low system power/weight ratio, unreasonable space distribution, etc. The effect of facilitating equipment placement, high flow/weight ratio, and easy lightweight design

Active Publication Date: 2020-08-07
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Both ① and ② have the disadvantage of low power/weight ratio of the system, and ① will occupy a large space volume at the same time, which is not conducive to equ

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  • High-flow hydraulic pump unit oil supply system in transfer parallel connection
  • High-flow hydraulic pump unit oil supply system in transfer parallel connection
  • High-flow hydraulic pump unit oil supply system in transfer parallel connection

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[0027] In order to make the objectives, technical solutions, and advantages of the implementation of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The embodiments and directional words described below with reference to the drawings are all exemplary, and are intended to explain the present invention, but should not be understood as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of t...

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Abstract

The invention discloses a high-flow hydraulic pump unit oil supply system in transfer parallel connection. The system comprises a power device 1, wherein the power device 1 is fixedly connected with ashell of a gear transfer case 3, a driving wheel 3-0 of the gear transfer case 3 is connected with an output shaft of the power device 1 through a spline, and N driving wheels (3-1)-(3-N) of the geartransfer case 3 are connected with a drive shaft of hydraulic pumps (4-1)-(4-M) through splines; two end surfaces of a transfer case gear are limited to the shell of the gear transfer case through bearings 7 respectively; and the hydraulic pumps (4-1)-(4-M) are used for pumping hydraulic oil to a subsequent hydraulic system, and M is larger or equal to N. Aiming at the high-flow hydraulic system,a single high-power power device is selected to drive multiple small-displacement hydraulic pumps combined through parallel connection by the aid of the gear transfer case, system oil supply in a multi-split form can be realized, the oil supply demand of the high-flow hydraulic system can be met, and weight and size of the oil supply system can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of hydraulic transmission in mechanical engineering, in particular to a split-parallel large-flow hydraulic pump group oil supply system. Background technique [0002] In the hydraulic transmission system, the oil supply system drives the hydraulic pump to absorb oil from the oil source through the power unit, and then pumps the high-pressure oil to the subsequent hydraulic system. The weight and volume of the oil supply equipment usually account for a large proportion of the entire system. Lightweight design is of great significance to the entire hydraulic system. [0003] According to the current industrial design level, the higher the power of power devices such as electric motors and engines, the easier it is to achieve a higher power / weight ratio. For hydraulic pumps such as axial piston pumps, the displacement is smaller under the same pressure. Then the flow / weight ratio is easier to make higher. Th...

Claims

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Application Information

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IPC IPC(8): F15B13/02
CPCF15B13/02F15B2211/20515F15B2211/20576
Inventor 李建秋董家臣帅志斌刘树成胡家毅
Owner TSINGHUA UNIV
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