Automotive electric hydraulic power-assisted steering pump assembly

A hydraulic power steering and vehicle electric technology, which is applied in the direction of fluid steering mechanism, rotary piston type/swing piston type pump components, rotary piston type/swing piston type pump combination, etc. Large space, separate installation of oil tank and other problems, to achieve the effect of saving external space, simple structure and compact structure

Pending Publication Date: 2019-04-19
烟台利通液压技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the electro-hydraulic power steering pump assembly used in medium and large passenger cars, medium and heavy trucks still purchases motors, controller assemblies, and vane pump pump heads from different suppliers, and then assembles them. The assembly with the motor often requires more wires and adapters for electrical connection, and the oil tank needs to be installed separately, occupying a large interior space of the car, and the process is cumbersome, which is not conducive to reducing production costs and shortening the production cycle
[0003] like Figure 9 As shown, the oil outlet hole on the double-acting vane pump commonly used in the existing steering pump is arranged horizontally, while the slide valve installati

Method used

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  • Automotive electric hydraulic power-assisted steering pump assembly
  • Automotive electric hydraulic power-assisted steering pump assembly
  • Automotive electric hydraulic power-assisted steering pump assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as Figure 1-Figure 8 As shown, an electric hydraulic power steering pump assembly for a vehicle includes a motor 1, an oil tank 2, and a hydraulic pump 5. A controller assembly 3 is provided between the motor 1 and the oil tank 2, and the motor 1 includes a body 1-1 and a motor shaft 1-2. The body 1-1 includes a motor rear cover 1-12, a motor front cover 1-13, and a motor rear cover 1-12 and a motor front cover The housing 1-11 between 1-13, the motor shaft 1-2 and the housing 1-11 are coaxially arranged;

[0048] The hydraulic pump 5 is a double-acting vane pump. The hydraulic pump 5 includes a pump body 5-2, a pump cover 5-1, and a pump shaft 5-3. The pump body 5-2 includes an integral structure from front to back. The pump body main body 5-21, the pump body connection end cover 5-22 and the valve body mounting part 5-23, the front end of the pump body main body 5-21 is connected with the pump cover 5-1, the pump body main body 5- 21 and the pump cover 5-1 are ar...

Embodiment 2

[0064] Such as Picture 10 As shown, the difference from Embodiment 1 is that: the first arc-shaped protrusion 2-21 and the front can cover 2-11 form an integral structure, and the second arc-shaped protrusion 2-31 is The cylindrical tank body 2-12 is an integral structure, and the second arc-shaped protrusion 2-31 is provided under the cylindrical tank body 2-12; the center of the oil injection connection port 2-22 The axis is perpendicular to the central axis of the cylindrical tank 2-12, and the central axis of the oil return connection port 2-32 is parallel to the central axis of the cylindrical tank 2-12.

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Abstract

The invention relates to an automotive electric hydraulic power-assisted steering pump assembly comprising a motor, an oil tank and a hydraulic pump which are integrated. A controller assembly is arranged between the motor and the oil tank, the motor comprises a motor body and a motor shaft, the hydraulic pump comprises a pump body, a pump cover and a pump shaft, the pump body sequentially comprises a pump body main part, a pump body connection end cap and a valve mounting portion from front to rear, the front end of the pump body main part is connected with the pump cover, the pump body mainpart and the pump cover are arranged inside the oil tank, the pump connection end cap is connected with the rear end of the oil tank, the rear end of the valve mounting portion is fixedly connected with a motor front end cap, the motor shaft is connected with the pump shaft through a connection sleeve, and the controller assembly is mounted on the motor front end cap. The motor, the oil tank and the hydraulic pump are integrated, and the controller assembly is mounted on the motor front end cap, so that outside space is saved, and the whole structure is more compact.

Description

Technical field [0001] The invention relates to a steering pump assembly, in particular to an electric hydraulic power steering pump assembly for vehicles. Background technique [0002] At present, the electro-hydraulic power steering pump assemblies used on medium and large passenger cars, medium and heavy trucks are still purchased from different suppliers for motors, controller assemblies, and vane pump heads, and then assembled, controllers The assembly with the motor often requires more wires and adapters for electrical connection, and the oil tank needs to be installed separately, which takes up a large internal space of the car, and the process is cumbersome, which is not conducive to reducing production costs and shortening the production cycle. [0003] Such as Picture 9 As shown, the oil outlet on the double-acting vane pump commonly used in the existing steering pumps is arranged horizontally, while the spool valve mounting hole 5-232 is arranged longitudinally, and the ...

Claims

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Application Information

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IPC IPC(8): B62D5/10F04C15/00F04C11/00F04C14/00
CPCF04C11/00F04C14/00F04C15/00B62D5/10
Inventor 王新坤刘文建牟朝晖李国胜
Owner 烟台利通液压技术有限公司
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