CN213598178U

CN213598178U - Automobile power steering pump

Info

Publication number: CN213598178U
Application number: CN202022190692.4U
Authority: CN
Inventors: 陈其; 薛为仁; 杨俊�
Original assignee: Zhejiang Mingzhou Auto Parts Co ltd
Current assignee: Zhejiang Mingzhou Auto Parts Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-07-02
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to an automobile power steering pump, which comprises a pump body and an end cover connected with the pump body, wherein a rotating shaft, a rotor, blades, a stator and an oil distribution disc are arranged in the pump body, the rotor is arranged on the rotating shaft in a matching way, a plurality of blade grooves are arranged on the rotor, the blades are arranged in the blade grooves, the stator is sleeved outside the rotor, an oil passing channel is arranged between the stator and the rotor, the stator is sleeved with a special-shaped limit sleeve, the stator can swing left and right in the special-shaped limit sleeve, a high-pressure cavity is arranged in the pump body, an oil inlet and an oil outlet are arranged on the pump body, the oil outlet is communicated with the high-pressure cavity, the oil inlet is arranged on the outer side of the pump body and is far away from the end cover, a first oil inlet channel is arranged on the pump body, a second oil inlet channel is arranged on the end cover, the second oil feed passageway accesss to the oil passage, the utility model discloses the structure sets up reasonable compactness, and the work energy consumption is little.

Description

Automobile power steering pump

Technical Field

The utility model relates to an auto-parts technical field, especially an automobile power steering pump.

Background

The automobile power steering pump is a component which is beneficial to improving and stabilizing the automobile performance. The automobile steering booster pump mainly assists a driver to adjust the automobile direction, and the existing automobile steering booster pump also has the problems that the structure is not reasonable and compact enough, and the working energy consumption of the booster pump is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a structure sets up reasonable compactness, and car power assisted steering pump that work energy consumption is little has solved the above-mentioned problem that exists among the prior art in the use.

The technical scheme of the utility model is realized like this: an automobile power steering pump comprises a pump body and an end cover connected with the pump body, wherein a rotating shaft, a rotor, blades, a stator and an oil distribution disc are arranged in the pump body, a matching groove is formed in the end cover, a lining is arranged in the matching groove, one end of the rotating shaft is arranged on the lining in a matching mode, the other end of the rotating shaft penetrates through the pump body, the rotor is arranged on the rotating shaft in a matching mode, a plurality of blade grooves are formed in the outer circumferential side face of the rotor in an axial direction, the blades are arranged in the blade grooves in a sliding mode, an oil storage groove is formed in the bottom of each blade groove, the stator is sleeved outside the rotor, an oil passing channel is formed between the stator and the rotor, a special-shaped limiting sleeve is sleeved outside the stator, a swinging space capable of enabling the stator to swing left and right is formed in the special-shaped limiting sleeve, the oil distribution disc is arranged on one, the oil distribution pump is characterized in that a high-pressure cavity is arranged in the pump body, the high-pressure cavity is arranged on one side, away from the rotor, of the oil distribution disc, an oil inlet and an oil outlet are formed in the pump body, the oil outlet is communicated with the high-pressure cavity, the oil inlet is arranged on the outer side of the pump body and is far away from the end cover, a first oil inlet channel is formed in the pump body, a second oil inlet channel is formed in the end cover and is connected with the oil inlet, the second oil inlet channel is communicated with the first oil inlet channel, and the second oil inlet channel leads to the oil passing channel.

Through adopting foretell technical scheme, the utility model discloses a but with the stator horizontal hunting set up in special-shaped stop collar, realize the function of the variable discharge capacity of oily passageway of mistake between stator and the rotor to reduce the energy consumption, and this structure also has the temperature rise little, longe-lived effect, in addition the utility model discloses an overall structure sets up reasonable compactness, job stabilization between each structure, wherein it has to link to each other and lead to the second oil feed passageway of oily passageway with first oil feed passageway to open on the end cover, and this structure can be under the condition that does not influence the fuel feeding indentation distance between end cover and the rotor, thereby makes the utility model discloses a structure becomes more reasonable compact.

The utility model discloses further set up to: open on the upside position of stator has the constant head tank that is the U-shaped, be equipped with the locating pin on the dysmorphism stop collar, the downside cooperation of locating pin sets up in the constant head tank, the dysmorphism stop collar is opened on the downside position of stator has sealed recess, be equipped with the rubber strip in the sealed recess, be equipped with the sealing strip on the rubber strip, the sealing strip sets up between stator and rubber strip, the pump body is opened on the left side position of stator has the installing port, be equipped with the regulation plug screw in the installing port, the pump body is connected with the nut that is used for fixed regulation plug screw on the position in the installing port outside, it has the spring groove to open on the inner of regulation plug screw, be equipped with first spring on the spring groove, first spring pierces through into special-shaped stop collar and stator left side counterbalance and holds.

Through adopting foretell technical scheme, the cooperation of locating pin and constant head tank and the cooperation homoenergetic of sealing strip and rubber strip can keep the stator stability when the horizontal hunting, and first spring can make the stator lean on the spring force to support and return the normal position again after swaing, and wherein first spring can adjust through the effect of adjusting the plug screw, and the suitability is strong.

The utility model discloses further set up to: the special-shaped limiting sleeve is characterized in that a pressure pad is connected onto the first spring, the first spring is in contact with the stator through the pressure pad, and buffering pads are arranged on the left side of the inner wall of the special-shaped limiting sleeve and the right side of the inner wall of the special-shaped limiting sleeve.

Through adopting foretell technical scheme, pressure pad and blotter. The stator can be effectively protected from being damaged in the left-right swinging process, and the service life is prolonged.

The utility model discloses further set up to: the pump body is provided with a pressure relief cavity which is transversely crossed with the first oil inlet channel, the pressure relief cavity is communicated with the first oil inlet channel, a pressure relief channel connected with the high pressure cavity is arranged on the left side of the pressure relief cavity, a pressure relief mechanism is arranged in the pressure relief cavity, the pressure relief mechanism comprises a valve body, a valve port seat, a second spring and a plug, the valve body is arranged on the right side of the pressure relief channel, the outer side of the valve body comprises a first clapboard and a second clapboard which are respectively arranged on the left side and the right side of the first oil inlet channel, the valve port seat is arranged at the left end of the valve body, the valve port seat is provided with an oil duct, the plug and the second spring are both arranged in the valve body, the second spring compresses the plug on the oil duct to form sealing, and the side wall of the valve body between the first partition plate and the second partition plate is provided with a pressure relief outlet.

Through adopting foretell technical scheme, when the high-pressure chamber is in the high pressure state, and the oil-out is in when closing, and the fluid that enters into the pressure release chamber through the pressure release passageway can press the end cap stifled on valve port seat oil duct from the valve port seat to make fluid follow the first oil feed passageway of pressure release export discharge circulation loop, this kind of mode is favorable to slowly reducing the pressure of each structure in the pump body and bears, thereby improves the utility model discloses a life.

The utility model discloses further set up to: the right-hand member in pressure release chamber pierces through the pump body, be connected with the sealed plug screw that is used for sealing up the pressure release chamber on the pump body, be equipped with the third spring that is used for compressing tightly the valve body on sealed plug screw on the left side in pressure release chamber, be equipped with O shape sealing washer between sealed plug screw and the pump body.

Through adopting foretell technical scheme, can be very convenient install and dismantle pressure release mechanism.

The utility model discloses further set up to: the second oil inlet channel comprises two oil through ports facing the rotor, and the end cover is provided with a C-shaped oil groove at the position of the oil through ports.

Through adopting foretell technical scheme, the messenger fluid that the oil groove can be quick is discharged from logical oil mouth, and this structure is favorable to reducing the distance between end cover and the rotor.

The utility model discloses further set up to: the end cover is connected with the pump body through a flange.

Through adopting foretell technical scheme, can be with firm reliable connection of end cover and pump body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a top view of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 6 is a schematic structural view of the middle end cap of the present invention.

In the figure: 1. a pump body; 2. an end cap; 3. a rotating shaft; 4. a rotor; 5. a blade; 6. a stator; 7. an oil distribution disc; 8. a mating groove; 9. a bushing; 10. a blade groove; 11. an oil storage tank; 12. an oil passing channel; 13. a special-shaped limiting sleeve; 14. a swing space; 15. an oil passing port; 16. a high pressure chamber; 17. an oil inlet; 18. an oil outlet; 19. a first oil inlet passage; 20. a second oil inlet passage; 21. positioning a groove; 22. positioning pins; 23. sealing the groove; 24. a rubber strip; 25. a sealing strip; 26. an installation port; 27. adjusting a screw plug; 28. a nut; 29. a spring slot; 30. a first spring; 31. a pressure pad; 32. a cushion pad; 33. a pressure relief cavity; 34. a pressure relief channel; 35. a valve body; 36. a valve port seat; 37. a second spring; 38. a plug; 39. a first separator; 40. a second separator; 41. an oil passage; 42. a pressure relief outlet; 43. sealing the screw plug; 44. a third spring; 45. an O-shaped sealing ring; 46. an oil through hole; 47. an oil groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 6, the utility model discloses an automobile power steering pump, which comprises a pump body 1 and an end cover 2 connected with the pump body 1, wherein a rotating shaft 3, a rotor 4, blades 5, a stator 6 and an oil distribution disc 7 are arranged in the pump body 1, a matching groove 8 is arranged on the end cover 2, a bush 9 is arranged in the matching groove 8, one end of the rotating shaft 3 is arranged on the bush 9 in a matching way, the other end of the rotating shaft 3 penetrates out of the pump body 1, the rotor 4 is arranged on the rotating shaft 3 in a matching way, a plurality of blade grooves 10 are axially arranged on the outer circumferential side surface of the rotor 4, the blades 5 are arranged in the blade grooves 10 in a sliding way, an oil storage groove 11 is arranged at the bottom of the blade grooves 10, the stator 6 is sleeved outside the rotor 4, an oil passage 12 is arranged between the stator 6 and the rotor 4, a special-shaped limit sleeve 13 is, the special-shaped limiting sleeve 13 is internally provided with a swing space 14 which can enable the stator 6 to swing left and right, the structure can realize the function of variable displacement of an oil passing channel 12 between the stator 6 and the rotor 4, thereby reducing energy consumption, and has the effects of small temperature rise and long service life, the oil distribution disc 7 is arranged on one side of the rotor 4, which is far away from the end cover 2, the oil distribution disc 7 is provided with an oil passing hole 15, the pump body 1 is internally provided with a high pressure cavity 16, the high pressure cavity 16 is arranged on one side of the oil distribution disc 7, which is far away from the rotor 4, the pump body 1 is provided with an oil inlet 17 and an oil outlet 18, the oil outlet 18 is communicated with the high pressure cavity 16, the oil inlet 17 is arranged on the outer side of the pump body 1 and is far away from the end cover 2, the pump body 1 is provided with a first oil inlet channel 19, the end cover 2 is provided with a second oil inlet channel 20, second oil feed passageway 20 and first oil feed passageway 19 put through mutually, second oil feed passageway 20 accesss to oil passing channel 12, the utility model discloses the structure sets up reasonable compactness.

In order to enhance the stability of the stator 6 during left-right swinging, a U-shaped positioning groove 21 is formed in the upper side position of the stator 6, a positioning pin 22 is arranged on the special-shaped position-limiting sleeve 13, the lower side of the positioning pin 22 is arranged in the positioning groove 21 in a matching manner, a sealing groove 23 is formed in the lower side position of the stator 6 of the special-shaped position-limiting sleeve 13, a rubber strip 24 is arranged in the sealing groove 23, a sealing strip 25 is arranged on the rubber strip 24, the sealing strip 25 is arranged between the stator 6 and the rubber strip 24, a mounting opening 26 is formed in the left side position of the stator 6 of the pump body 1, an adjusting screw plug 27 is arranged in the mounting opening 26, a nut 28 for fixing the adjusting screw plug 27 is connected to the position outside the mounting opening 26 of the pump body 1, a spring groove 29 is formed in the inner end of the adjusting screw plug 27, a first spring 30 is arranged on the spring groove 29, and the first spring 30 penetrates into the special-shaped position-, the stator 6 can be supported by spring force after swinging and then returns to the original position through the first spring 30, wherein the first spring 30 can be adjusted through the action of the adjusting screw plug 27, and the applicability is strong.

In order to protect the stator 6 from being damaged in the left-right swinging process, the first spring 30 is connected with a pressure pad 31, the first spring 30 is in contact with the stator 6 through the pressure pad 31, and the left side and the right side of the inner wall of the special-shaped limiting sleeve 13 are both provided with a cushion pad 32.

In the utility model, the pump body 1 is provided with a pressure relief cavity 33 transversely crossed with the first oil inlet channel 19 on the first oil inlet channel 19, the pressure relief cavity 33 is communicated with the first oil inlet channel 19, the left side of the pressure relief cavity 33 is provided with a pressure relief channel 34 connected with the high pressure cavity 16, a pressure relief mechanism is arranged in the pressure relief cavity 33, the pressure relief mechanism comprises a valve body 35, a valve port seat 36, a second spring 37 and a plug 38, the valve body 35 is arranged on the right side of the pressure relief channel 34, the outer side of the valve body 35 comprises a first partition 39 and a second partition 40, the first partition 39 and the second partition 40 are respectively arranged on the left side and the right side of the first oil inlet channel 19, the valve port seat 36 is arranged on the left end of the valve body 35, the valve port seat 36 is provided with an oil passage 41, the plug 38 and a second spring 37 are both arranged in the valve body 35, the second spring 37 presses the plug 38 on the oil passage 41 to form sealing, valve body 35 is opened on the lateral wall between first baffle 39 and second baffle 40 and is had pressure release export 42, when high-pressure chamber 16 is in the high pressure state, and oil-out 18 is in when closing, the fluid that enters into pressure release chamber 33 through pressure release channel 34 can press the end cap 38 of stifled on 36 oil ducts 41 of valve port seat from valve port seat 36 to make fluid follow the first oil feed passageway 19 of pressure release export 42 discharge circulation return, this kind of mode is favorable to slowly reducing the pressure of each structure in the pump body 1 and bears, thereby improves the utility model discloses a life.

In order to facilitate the installation and the disassembly of the pressure relief mechanism, the right end of the pressure relief cavity 33 penetrates through the pump body 1, the pump body 1 is connected with a sealing plug screw 43 used for sealing the pressure relief cavity 33, the left side of the pressure relief cavity 33 is provided with a third spring 44 used for pressing the valve body 35 on the sealing plug screw 43, and an O-shaped sealing ring 45 is arranged between the sealing plug screw 43 and the pump body 1.

The utility model discloses in, second oil feed passageway 20 is including two logical oil ports 46 towards rotor 4, end cover 2 is opened on the position that leads to oil port 46 has the oil groove 47 that is C shape, and oil groove 47 can be quick makes fluid discharge from leading to oil port 46 to be favorable to reducing the distance between end cover 2 and the rotor 4.

In the present invention, the end cap 2 is connected to the pump body 1 via a flange.

The utility model that should point out simultaneously indicates the terminology, like: the directional or positional relationships indicated as "front", "rear", "vertical", "horizontal", etc. are based on the directional or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automobile power steering pump, includes the pump body and the end cover that is connected with the pump body, its characterized in that: the pump is characterized in that a rotating shaft, a rotor, blades, a stator and an oil distribution disc are arranged in the pump body, a matching groove is formed in the end cover, a bushing is arranged in the matching groove, one end of the rotating shaft is arranged on the bushing in a matching mode, the other end of the rotating shaft penetrates through the pump body, the rotor is arranged on the rotating shaft in a matching mode, a plurality of blade grooves are formed in the outer circumferential side face of the rotor in the axial direction, the blades can be arranged in the blade grooves in a sliding mode, an oil storage groove is formed in the bottom of each blade groove, the stator is sleeved outside the rotor, an oil passing channel is formed between the stator and the rotor, a special-shaped limiting sleeve is sleeved outside the stator, a swinging space capable of enabling the stator to swing left and right is formed in the special-shaped limiting sleeve, the oil distribution disc is arranged on one side, away from the end cover, of the rotor, an oil passing port is formed, the oil pump is characterized in that the pump body is provided with an oil inlet and an oil outlet, the oil outlet is communicated with the high-pressure cavity, the oil inlet is arranged on the outer side of the pump body and is far away from the end cover, the pump body is provided with a first oil inlet channel, the end cover is provided with a second oil inlet channel, the first oil inlet channel is connected with the oil inlet, the second oil inlet channel is communicated with the first oil inlet channel, and the second oil inlet channel is communicated with the oil passing channel.

2. The steering assist pump for an automobile according to claim 1, characterized in that: open on the upside position of stator has the constant head tank that is the U-shaped, be equipped with the locating pin on the dysmorphism stop collar, the downside cooperation of locating pin sets up in the constant head tank, the dysmorphism stop collar is opened on the downside position of stator has sealed recess, be equipped with the rubber strip in the sealed recess, be equipped with the sealing strip on the rubber strip, the sealing strip sets up between stator and rubber strip, the pump body is opened on the left side position of stator has the installing port, be equipped with the regulation plug screw in the installing port, the pump body is connected with the nut that is used for fixed regulation plug screw on the position in the installing port outside, it has the spring groove to open on the inner of regulation plug screw, be equipped with first spring on the spring groove, first spring pierces through into special-shaped stop collar and stator left side counterbalance and holds.

3. The steering assist pump for an automobile according to claim 2, characterized in that: the special-shaped limiting sleeve is characterized in that a pressure pad is connected onto the first spring, the first spring is in contact with the stator through the pressure pad, and buffering pads are arranged on the left side of the inner wall of the special-shaped limiting sleeve and the right side of the inner wall of the special-shaped limiting sleeve.

4. The steering assist pump for an automobile according to claim 1, characterized in that: the pump body is provided with a pressure relief cavity which is transversely crossed with the first oil inlet channel, the pressure relief cavity is communicated with the first oil inlet channel, a pressure relief channel connected with the high pressure cavity is arranged on the left side of the pressure relief cavity, a pressure relief mechanism is arranged in the pressure relief cavity, the pressure relief mechanism comprises a valve body, a valve port seat, a second spring and a plug, the valve body is arranged on the right side of the pressure relief channel, the outer side of the valve body comprises a first clapboard and a second clapboard which are respectively arranged on the left side and the right side of the first oil inlet channel, the valve port seat is arranged at the left end of the valve body, the valve port seat is provided with an oil duct, the plug and the second spring are both arranged in the valve body, the second spring compresses the plug on the oil duct to form sealing, and the side wall of the valve body between the first partition plate and the second partition plate is provided with a pressure relief outlet.

5. The steering assist pump for an automobile according to claim 4, characterized in that: the right-hand member in pressure release chamber pierces through the pump body, be connected with the sealed plug screw that is used for sealing up the pressure release chamber on the pump body, be equipped with the third spring that is used for compressing tightly the valve body on sealed plug screw on the left side in pressure release chamber, be equipped with O shape sealing washer between sealed plug screw and the pump body.

6. The steering assist pump for an automobile according to claim 1, characterized in that: the second oil inlet channel comprises two oil through ports facing the rotor, and the end cover is provided with a C-shaped oil groove at the position of the oil through ports.

7. The steering assist pump for an automobile according to claim 1, characterized in that: the end cover is connected with the pump body through a flange.