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Piston pump assembly of integrated brake system

A brake system and piston pump technology, applied in variable capacity pump components, components of pumping devices for elastic fluids, pumps, etc., can solve problems such as bloated structure, large occupied volume, and large noise, and achieve Simple and compact structure, reduced weight and reduced noise

Active Publication Date: 2022-02-15
WANXIANGQIANCHAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the piston pumps in the prior art are relatively bloated in structure, occupy a large volume, and are heavy in weight. Secondly, the piston pumps in the prior art will generate relatively large noises during use, which in turn affects the use of the piston pump.

Method used

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  • Piston pump assembly of integrated brake system
  • Piston pump assembly of integrated brake system
  • Piston pump assembly of integrated brake system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] see Figure 1-13 , the present invention provides a technical solution: a piston pump assembly of an integrated brake system includes a drive motor 1, a planetary gear reduction mechanism 2, a ball screw device 4, a piston 9 and a pressure building cylinder 7; the drive motor 1 The motor shaft 101 is connected with a planetary gear reduction mechanism 2, and a ball screw device 4 is fixedly installed on the planetary gear reduction mechanism 2; the ball screw device 4 includes a screw rod 8, and a nut 5 is fixedly installed in the pressure building cylinder 7 A ball 6 is arranged between the nut 5 and the screw rod 8, and a piston 9 is fixedly installed on the outside of the nut 5. The planetary gear reduction mechanism 2 includes a sun gear 201, a planetary gear 202, an axle 203, a ring gear 204 and a planetary gear reduction mechanism housing 205, the piston 9 moves in the pressure building cylinder 7 by means of the ball screw device 4, and then compresses the liquid...

no. 3 example

[0062] In the third embodiment, the side 801 of the screw 8 close to the nut 5 protrudes axially and is provided with a third stopper 16, and the side 501 of the nut 5 close to the screw 8 is provided with an arc-shaped groove 502. The arc-shaped groove 502 allows the third limiting protrusion 16 to enter, the third limiting protrusion 16 is located between the arc-shaped groove 502 and the surface 504, and the side 1602 of the third limiting protrusion 16 and the surface 504 There is a certain gap between them, and there is a certain gap between the top surface 1601 and the surface 503 of the third limiting protrusion 16 . When the nut 5 and the piston 9 retreat to the end point, the third limiting protrusion 16 of the screw rod 8 first enters the arc-shaped groove 502 , and then contacts the stop surface 505 of the groove 502 .

no. 4 example

[0063] In the fourth embodiment, the side 501 of the nut 5 close to the screw 8 protrudes axially and is provided with a fourth limit protrusion 17, and the side 801 of the screw 8 close to the nut 5 is provided with an arc-shaped groove 802. The fourth limiting protrusion 17 is allowed to enter into the circular groove 802, the fourth limiting protrusion 17 is located between the surfaces 804 of the circular arc-shaped groove 802, and the side surface 1702 of the fourth limiting protrusion 17 and the surface 804 There is a certain gap, and there is a certain gap between the top surface 1701 and the surface 803 of the fourth limiting protrusion 17 . When the nut 5 and the piston 9 retreat to the end point, the fourth limiting protrusion 17 of the nut 5 first enters the arc-shaped groove 802 and then contacts the stop surface 805 of the groove 802 .

[0064] Working principle: when in use, the invention makes full use of the space between the screw rod and the piston, reduces t...

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PUM

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Abstract

The invention discloses a piston pump assembly of an integrated brake system, which comprises a driving motor, a planetary gear reducing mechanism, a ball screw device, a piston and a pressure building cylinder body, a motor shaft of the driving motor is in transmission connection with the planetary gear reducing mechanism, the ball screw device is fixedly mounted on the planetary gear reducing mechanism, the ball screw device comprises a screw rod, a nut is fixedly installed in the pressure building cylinder body, and a ball is arranged between the nut and the screw rod. The space of the lead screw and the piston is fully utilized, the size of a product is reduced, the structure is simple and compact, the weight is reduced, meanwhile, the piston end face of the piston and the end face of the lead screw can be prevented from being locked, noise generated in the system using process can be reduced, and the device is convenient to use.

Description

technical field [0001] The invention relates to the technical field of piston pumps, in particular to a piston pump assembly of an integrated brake system. Background technique [0002] The piston pump relies on the reciprocating movement of the piston, which makes the working volume of the pump chamber change periodically to realize the suction and discharge of liquid. It is composed of pump, pump cylinder, piston, inlet and outlet oil pipes, and transmission device. The power of the pump drives the piston to reciprocate in the pump cylinder. [0003] Most of the piston pumps in the prior art are relatively bloated in structure, occupy a large volume, and are heavy in weight. Secondly, the piston pumps in the prior art will generate relatively large noises during use, which in turn affects the use of the piston pump. Contents of the invention [0004] In order to solve the technical problems mentioned in the background art above, a piston pump assembly of an integrated b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B17/03F04B53/00
CPCF04B17/03F04B53/00F04B53/001
Inventor 王亚丽任博屈亮亮邱宝象郑美云张现乾
Owner WANXIANGQIANCHAO CO LTD