CN218376865U - Low-failure-rate steering pump - Google Patents
Low-failure-rate steering pump Download PDFInfo
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- CN218376865U CN218376865U CN202222761816.9U CN202222761816U CN218376865U CN 218376865 U CN218376865 U CN 218376865U CN 202222761816 U CN202222761816 U CN 202222761816U CN 218376865 U CN218376865 U CN 218376865U
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- pump
- stator
- pump body
- drive shaft
- oil
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Abstract
The utility model relates to a car steering pump technical field provides a low fault rate steering pump, which comprises a pump body, be equipped with ball bearing in the pump body, the last drive shaft that is equipped with of ball bearing, the outer end crimping of drive shaft has the pump cover, the position that is close to the pump cover in the drive shaft is equipped with stator and pressure plate from the right side to a left side, the stator the pressure plate with the pump body passes through the locating pin is connected, be equipped with oval form cavity in the stator, be equipped with the rotor in the drive shaft, the rotor is located in the oval form cavity of stator. When the rotor and the blades move from a small arc area to a large arc area on the inner surface of the stator, the volume between the two blades is increased, and oil is absorbed through the oil suction port; when moving to the small circle arc district by big arc district, the volume between two blades reduces, through the oil drain port oil extraction, and the steering pump is at the during operation, and the stator can not take place the change that the skew realized the discharge capacity along with the change of rotational speed, so makes the trafficability characteristic of impurity stronger.
Description
Technical Field
The utility model relates to an auto steering pump technical field especially relates to a low fault rate steering pump.
Background
The steering pump transmits power assistance through steering fluid, the steering fluid is used as a medium, impurities are inevitably mixed in the use process, the impurities come from other parts of a steering hydraulic system, and the impurities easily block the steering pump when passing through the steering pump, so that the steering power assistance is abnormal or fails. The existing steering pump is generally a variable displacement pump, a stator in the variable displacement pump can move along with the change of the rotating speed, so that the change of the displacement is realized, the requirement of the steering pump on the cleanliness is high, the impurity passing performance is weak, and the steering pump is easy to be abnormal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low fault rate steering pump to stator in the variable displacement pump among the solution prior art can be along with the change of rotational speed takes place to remove, realizes the change of discharge capacity, and this makes the steering pump higher to the requirement of cleanliness, and impurity trafficability characteristic is weaker, and unusual problem appears very easily in the steering pump.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a low fault rate steering pump, includes the pump body, be equipped with ball bearing in the pump body, the last drive shaft that is equipped with of ball bearing, the outer end crimping of drive shaft has the pump cover, the position that is close to the pump cover in the drive shaft is equipped with stator and pressure plate from the right side to a left side, the stator the pressure plate with the pump body passes through the locating pin and connects, be equipped with oval-shaped cavity in the stator, it has oil absorption opening and oil drain port to open on the pressure plate, the epaxial rotor that is equipped with of drive, the rotor is located in the oval-shaped cavity of stator, the even interval of rotor periphery is opened there is the slotted hole, be equipped with the blade in the slotted hole, pump body top is equipped with into oil pipe through outlet joint.
Furthermore, one side of the ball bearing, which is close to the pump body, is provided with an elastic retainer ring, and the other side of the ball bearing is provided with a framework oil seal.
Furthermore, a combined sealing gasket is connected between the pump body and the pump cover in a pressing mode.
Further, a plating layer is arranged on the surface of the stator.
Furthermore, an O-shaped ring is arranged between the outlet joint and the pump body.
Further, the pump cover and the pump body are connected through screws.
The embodiment of the utility model provides an in foretell one or more technical scheme, have following technological effect or advantage at least:
the embodiment of the utility model provides a low fault rate steering pump drives the rotor through the drive shaft and rotates, and the blade is thrown away and tightly laminates on the stator inner wall because of the effect of centrifugal force, plays the sealing effect, separates oil absorption opening and oil drain port, and the locating pin can restrict the rotational degree of freedom of stator, because be equipped with oval cavity in the stator, when rotor and blade move to big arc area from the small arc area of stator internal surface, the volume between two blades increases, inhales oil through the oil absorption opening of pump cover; when moving to small circle arc district by big arc district, the volume between two blades reduces, and oil drain through the pressure plate discharges oil, turns to the pump and becomes the displacement from becoming the displacement volume, turns to the pump at the during operation, and the stator can not take place the change that the skew realized the displacement along with the change of rotational speed, so makes the trafficability characteristic of impurity stronger, and then can reduce the probability that turns to the pump and break down to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a schematic view of a stator, blades and rotor according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the present invention;
in the figure: 1. the pump body, 2, ball bearings, 3, a driving shaft, 4, a pump cover, 5, a pressure plate, 6, a stator, 7, blades, 8, a rotor, 9, a positioning pin, 10, an oil inlet pipe, 101, an outlet joint, 11, an elastic retainer ring, 12, a framework oil seal, 13, a combined sealing gasket, 14 and an O-shaped ring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not 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, are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The embodiment of the utility model provides a low fault rate steering pump belongs to car steering pump technical field, and among the prior art, the steering pump is through turning to liquid and transmitting the helping hand, turns to liquid as the medium, in the use, can sneak into impurity unavoidably, and these impurity come from other spare parts of steering hydraulic system, and these impurity block the steering pump very easily when the steering pump, lead to turning to the helping hand unusual or inefficacy. The existing steering pump is generally a variable displacement pump, a stator in the variable displacement pump can move along with the change of the rotating speed, so that the change of the displacement is realized, the requirement of the steering pump on the cleanliness is high, the impurity passing performance is weak, and the steering pump is easy to be abnormal.
Therefore, how to provide the steering pump with low failure rate becomes a technical problem which needs to be solved urgently.
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, the embodiment of the utility model provides a low fault rate steering pump, including the pump body 1, be equipped with ball bearing 2 in the pump body 1, be equipped with drive shaft 3 on the ball bearing 2, the outer end crimping of drive shaft 3 has pump cover 4, the position that is close to pump cover 4 on the drive shaft 3 is equipped with stator 6 and pressure plate 5 from the right side to a left side, stator 6, pressure plate 5 passes through locating pin 9 with the pump body 1 and is connected, be equipped with oval-shaped cavity in the stator 6, it has oil absorption opening and oil drain port to open on the pressure plate 5, be equipped with rotor 8 on the drive shaft 3, rotor 8 is located the oval-shaped cavity of stator 6, the even interval of rotor 8 periphery is opened there is the slotted hole, be equipped with blade 7 in the slotted hole, pump body 1 top is equipped with into oil pipe 10.
By adopting the technical scheme, the rotor 8 is driven to rotate under the driving rotation of the driving shaft 3, in the rotating process of the rotor 8, the blades 7 are thrown out and tightly attached to the inner wall of the stator 6 under the action of centrifugal force to play a role of sealing and separate an oil suction port from an oil discharge port, the positioning pin 9 can limit the rotating freedom degree of the stator 6 and limit and fix the installation of the stator 6, so that the stator 6 cannot easily slide and deviate, the installation stability between the transverse shaft and the longitudinal shaft is improved, and the stability of the stator is ensured; when moving to small circle arc district by big arc district, the volume between two blades 7 reduces, through pressure plate 5's oil drain port oil extraction, turns to the pump and becomes the displacement from variable displacement, turns to the pump at the during operation, and stator 6 can not take place the change that the skew realized the displacement along with the change of rotational speed, so makes the trafficability characteristic of impurity stronger, and then can reduce the probability that turns to the pump and break down to a certain extent.
Specifically, a combination seal 13 is pressed between the pump body 1 and the pump cover 4.
In some embodiments, the ball bearing 2 is provided with a circlip 11 on one side close to the pump body 1, and the ball bearing 2 is provided with a skeleton oil seal 12 on the other side.
By adopting the technical scheme, the sealing performance is improved, air is prevented from being sucked, and meanwhile, the oil in the pump body 1 can not be leaked.
In some embodiments, the stator 6 surface is provided with a coating.
By adopting the technical scheme, the plating layer can play a role in protection and isolation, and can prevent oxidation and corrosion caused by contact of substances such as oxygen and the like.
In some embodiments, an O-ring 14 is provided between the outlet fitting 101 and the pump body 1.
By adopting the technical scheme, in detail, the O-shaped ring 14 is a sealing ring, so that the sealing effect of the joint of the pump body 1 and the outlet joint 101 can be improved.
In some embodiments, the pump cover 4 and the pump body 1 are connected by screws.
Technical scheme more than adopting, pump cover 4 and pump body 1 are connected through the screw and are conveniently dismantled pump cover 4.
In one embodiment, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (6)
1. A low failure rate steering pump characterized by: including the pump body (1), be equipped with ball bearing (2) in the pump body (1), be equipped with drive shaft (3) on ball bearing (2), the outer end crimping of drive shaft (3) has pump cover (4), the position that is close to pump cover (4) on drive shaft (3) is equipped with stator (6) and pressure plate (5) from the right side to left side, stator (6) pressure plate (5) with the pump body (1) is connected through locating pin (9), be equipped with oval form cavity in stator (6), it has oil absorption mouth and oil drain port to open on pressure plate (5), be equipped with rotor (8) on drive shaft (3), rotor (8) are located the oval form cavity of stator (6) is indoor, open at even interval in rotor (8) periphery has the slotted hole, be equipped with blade (7) in the slotted hole, pump body (1) top is equipped with oil inlet pipe (10) through outlet joint (101).
2. A low failure rate steering pump according to claim 1, wherein: the oil pump is characterized in that the ball bearing (2) is close to one side of the pump body (1) and is provided with an elastic check ring (11), and the other side of the ball bearing (2) is provided with a framework oil seal (12).
3. A low failure rate steering pump according to claim 1, wherein: and a combined sealing gasket (13) is pressed between the pump body (1) and the pump cover (4).
4. A low failure rate steering pump according to claim 1, wherein: and a coating is arranged on the surface of the stator (6).
5. A low failure rate steering pump according to claim 1, wherein: an O-shaped ring (14) is arranged between the outlet joint (101) and the pump body (1).
6. A low failure rate steering pump according to claim 1, wherein: the pump cover (4) is connected with the pump body (1) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222761816.9U CN218376865U (en) | 2022-10-19 | 2022-10-19 | Low-failure-rate steering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222761816.9U CN218376865U (en) | 2022-10-19 | 2022-10-19 | Low-failure-rate steering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218376865U true CN218376865U (en) | 2023-01-24 |
Family
ID=84932732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222761816.9U Active CN218376865U (en) | 2022-10-19 | 2022-10-19 | Low-failure-rate steering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218376865U (en) |
-
2022
- 2022-10-19 CN CN202222761816.9U patent/CN218376865U/en active Active
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