CN216077561U

CN216077561U - Novel blade of blade type hydraulic pump

Info

Publication number: CN216077561U
Application number: CN202121782326.6U
Authority: CN
Inventors: 邱少林; 庞宏磊; 陈勇; 刘保月
Original assignee: Anhui Boyan Information Technology Co ltd
Current assignee: Anhui Boyan Information Technology Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-18
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a novel vane of a vane type hydraulic pump, belonging to the technical field of hydraulic pumps; the rotor is provided with a blade groove, the blade groove is internally and movably provided with blades, high-pressure oil flows into the bottom of the blade groove, the bottom of the blade groove is provided with an oil hole at the bottom of the blade groove, the oil hole at the bottom of the blade groove is communicated with the high-pressure oil, an oil inlet passage and an oil outlet passage are arranged inside the blades, the oil inlet passage and the oil outlet passage are communicated with each other, the two sides of the oil outlet passage are communicated, the outlet at the two sides of the oil outlet passage faces to the movement gap between the blades and the blade groove, an oil film is formed on the surface of each blade and the surface of the blade groove through the movement interface between the blades and the blade groove, the phenomenon of clamping stagnation and clamping of the blades is avoided, or the phenomenon of shearing is avoided, and the service life of the blade type hydraulic pump is prolonged.

Description

Novel blade of blade type hydraulic pump

Technical Field

The utility model belongs to the technical field of the hydraulic pump, concretely relates to novel blade of blade type hydraulic pump.

Background

The vane type hydraulic pump has high transmission efficiency and large output pressure, and is widely applied to automobile oil pumps and automobile steering systems. The vane type hydraulic pump mainly comprises a stator, a rotor, vanes, oil distribution discs on two sides and the like, wherein the sealed volume is formed by the adjacent two vanes, the excircle of the rotor, the inner circle of the stator and the oil distribution discs on two sides. During operation of the vane pump, the vanes are mounted in radial grooves (hereinafter referred to as vane grooves) in the rotor, and the vanes rotate circumferentially as the rotor rotates. Because a certain eccentricity exists between a rotor and a stator in the vane type hydraulic pump, the vanes rotate and simultaneously move in a telescopic mode along the vane grooves in the radial direction. The telescopic motion of the vanes in the vane grooves changes the sealed volume, thereby realizing the oil suction and oil discharge actions of the vane type hydraulic pump. Therefore, whether the vane can extend or retract smoothly in the vane groove is an important prerequisite for ensuring the normal operation of the vane type hydraulic pump.

Under the influence of factors such as manufacturing error, installation error and surface abrasion, the blade is usually blocked in the blade groove, so that the blade cannot extend out or retract smoothly, and the normal work of the vane pump is influenced. The vane seizure further exacerbates the wear of the vane and vane slot surfaces. When the blade is seriously stuck or even is stuck, the blade can be sheared by the rotor, so that the vane pump is damaged. Achieving good lubrication of the moving interfaces of the vanes and the vane grooves is an effective measure for solving the problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the disclosed aim is to provide a novel vane of a vane type hydraulic pump, which solves the problem that the surface motion of the vane and the vane groove is not smooth in the prior art.

The purpose of the disclosure can be realized by the following technical scheme:

the novel vane of the vane type hydraulic pump comprises a rotor, wherein a vane groove is formed in the rotor, vanes are movably arranged in the vane groove, and high-pressure oil is introduced to the bottom of the vane groove.

Furthermore, the bottom of the vane slot is provided with a vane slot bottom oil hole, and the vane slot bottom oil hole is filled with high-pressure oil.

Further, the maximum diameter of the oil hole at the bottom of the blade groove is larger than the width of the blade groove.

Furthermore, an oil inlet channel and an oil outlet channel are formed in the blade, and high-pressure oil at the bottom of the blade is introduced into a movement gap between the blade and the blade groove through the oil inlet channel and the oil outlet channel.

Furthermore, an oil inlet channel and an oil outlet channel are formed in the blade, the oil inlet channel and the oil outlet channel are communicated with each other, the oil inlet channel is communicated with the oil hole in the bottom of the blade groove, two sides of the oil outlet channel are communicated, and outlets in two sides of the oil outlet channel face to a movement gap between the blade and the blade groove.

Further, the number of the oil inlet channels is 1, and the number of the oil outlet channels is 2-6.

Further, the axes of a plurality of oil outlets are parallel to each other.

Further, the oil inlet channel intersects and is perpendicular with the axis of oil outlet channel.

The beneficial effect of this disclosure:

an oil film is formed on a moving interface between the blade and the blade groove, so that the friction between the blade and the surface of the blade groove is reduced, the phenomena of clamping stagnation, clamping death or shearing of the blade are avoided, and the service life of the blade type hydraulic pump is prolonged.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a vane-type hydraulic pump according to the present invention.

Fig. 2 is a partially enlarged view within a dotted frame in fig. 1.

Fig. 3 is a structural view of the inside of a blade in the present invention.

The reference numbers in the figures denote: the oil distribution device comprises a stator 1, a rotor 2, an oil distribution disc 3, a vane groove 4, an oil hole 5 at the bottom of the vane groove, a vane 6, a moving interface 7 between the vane and the vane groove, an oil inlet channel 8 and an oil outlet channel 9.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

As shown in fig. 1 to 3, example 1: a low-friction blade type hydraulic pump with composite blades comprises a stator 1, a rotor 2, an oil distribution disc 3, blade grooves 4, oil holes 5 at the bottoms of the blade grooves and blades 6. The vanes 6 are arranged in vane grooves 4, and high-pressure oil is introduced into oil holes 5 at the bottoms of the vane grooves. The blades 6 rotate along with the rotor 2. In the right half part as shown in fig. 1, under the action of high-pressure oil in the oil hole 5 at the bottom of the vane and centrifugal force, the vane 6 extends outwards, the top of the vane 6 is tightly attached to the inner circle of the stator 1, the sealing volume is increased, and the oil suction action is completed. In the left half part as shown in fig. 1, under the pushing action of the inner circle of the stator 1, the vanes 6 retract into the vane grooves 4, the sealing volume is reduced, oil in the sealing volume is compressed, and the oil discharging action is completed. Furthermore, oil ducts 8 and 9 are processed inside the blade 6, and high-pressure oil in the oil hole 5 at the bottom of the blade groove enters a moving interface 7 between the blade and the blade groove through the oil inlet duct 8 and the oil outlet duct 9, so that a lubricating oil film is convenient to form during the telescopic motion process of the blade in the blade groove, and the phenomena of surface abrasion and clamping stagnation of the blade and the blade groove are reduced. In this embodiment, the oil inlet channel number is 1, the oil outlet channel number is 4. The utility model skillfully introduces the high-pressure oil at the bottom of the blade into the motion interface between the blade and the blade groove, effectively lubricates the surfaces of the blade and the blade groove, and ensures the high-efficiency and long-life operation of the blade type hydraulic pump.

Embodiment 2 is a novel vane of a vane type hydraulic pump, comprising a rotor 2, wherein a vane groove 4 is arranged on the rotor, a vane 6 is movably arranged in the vane groove 4, and high-pressure oil is introduced to the bottom of the vane groove 4; the stator 1 is arranged outside the rotor 2, the end face of the blade 6 is abutted against the inside of the stator 1, through the design, the radial blade groove 4 is processed on the rotor 2, and the blade 6 rotates along with the rotor 2 when the vane pump works; in the oil suction area, under the action of high-pressure oil in the oil hole at the bottom of the vane groove 4 and centrifugal force, the vane extends outwards, the volume of the sealed cavity is increased, and oil suction is realized. In the oil discharge area, the vanes 6 are pressed into the vane grooves by the inner circle of the stator 6, the sealing volume is reduced, and the oil discharge action is completed; therefore, the effect of the hydraulic pump can be ensured by utilizing high-pressure oil to enable the blades 6 to be in contact with the inner circle of the stator 6 more closely.

Furthermore, the bottom of the vane slot 4 is provided with a vane slot bottom oil hole 5 which is filled with high-pressure oil; further, the maximum diameter of the oil hole 5 at the bottom of the vane slot is larger than the width of the vane slot 4; through the design, the stability of the resisting force of high-pressure oil in the oil hole 5 at the bottom of the blade groove on the blade 6 can be ensured.

Furthermore, an oil inlet channel and an oil outlet channel are formed in the blade, and high-pressure oil at the bottom of the blade is introduced into a movement gap between the blade and the blade groove through the oil inlet channel and the oil outlet channel; through the design, the high-pressure oil at the bottom of the blade is introduced into the moving interface 7 of the blade and the blade groove, so that the effective lubrication effect is achieved, and the surface abrasion and clamping stagnation phenomena of the blade 6 and the blade groove 4 are reduced.

In some disclosures, an oil inlet channel 8 and an oil outlet channel 9 are arranged inside the blade 6, the oil inlet channel 8 is communicated with the oil outlet channel 9, the oil inlet channel 8 is communicated with the oil hole 5 at the bottom of the blade groove, two sides of the oil outlet channel 9 are communicated, and outlets at two sides of the oil outlet channel 9 face a moving interface 7 between the blade and the blade groove; furthermore, the number of the oil inlet channels is 1, and the number of the oil outlet channels is 2-6; further, the axes of the oil outlet channels are parallel to each other; further, the oil inlet channel is intersected and vertical to the axis of the oil outlet channel; by means of the design, high-pressure oil at the bottom of the vane can be better introduced into the moving interface 7 of the vane and the vane groove.

Example 3: furthermore, a round through hole with a large diameter and three oil storage blind holes are distributed between two adjacent blade grooves on the rotor body, and the oil storage blind holes are uniformly distributed around the round through hole. The oil storage blind hole is used for storing lubricating oil, a lubricating oil film is formed when the rotor and the valve plate rotate relatively, the lubricating performance of a friction interface between the rotor and the valve plate is improved, and the eccentric load abrasion phenomenon of the friction interface is avoided.

The working principle is as follows:

the oil passage is processed in the blade, high-pressure oil at the bottom of the blade is ingeniously introduced into a moving interface between the blade and a blade groove, the surfaces of the blade and the blade groove are effectively lubricated, the phenomena of abrasion and clamping stagnation of the surfaces of the blade and the blade groove are improved, the service life of the friction surface of the blade and a rotor is prolonged, and the efficient and long-life operation of the blade type hydraulic pump is guaranteed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The novel vane of the vane type hydraulic pump comprises a rotor and is characterized in that a vane groove is formed in the rotor, vanes are movably mounted in the vane groove, and high-pressure oil is led to the bottom of the vane groove.

2. The new vane of a vane-type hydraulic pump as claimed in claim 1, wherein said vane slot bottom portion is provided with a vane slot bottom oil hole, and said vane slot bottom oil hole is filled with high pressure oil.

3. The vane of claim 2, wherein the maximum diameter of the oil hole at the bottom of the vane groove is larger than the width of the vane groove.

4. The new vane of a vane type hydraulic pump as claimed in claim 1, wherein the vane has an oil inlet passage and an oil outlet passage inside, and the high pressure oil at the bottom of the vane is introduced into the moving gap between the vane and the vane groove through the oil inlet passage and the oil outlet passage.

5. The new vane of vane type hydraulic pump as claimed in claim 4, wherein the vane has an oil inlet passage and an oil outlet passage inside, the oil inlet passage and the oil outlet passage are connected to each other, the oil inlet passage is connected to the oil hole at the bottom of the vane slot, the two sides of the oil outlet passage are connected to each other, and the outlets at the two sides of the oil outlet passage face the moving gap between the vane and the vane slot.

6. The new vane of a vane type hydraulic pump as claimed in claim 4, wherein the number of the oil inlet channels is 1, and the number of the oil outlet channels is 2-6.

7. The vane of claim 6 wherein the axes of the oil outlets are parallel to each other.

8. The new vane of a vane-type hydraulic pump as claimed in claim 6, wherein the oil inlet channel intersects with and is perpendicular to the axis of the oil outlet channel.