CN210858845U

CN210858845U - Oil pump and lubricating system

Info

Publication number: CN210858845U
Application number: CN201921604108.6U
Authority: CN
Inventors: 刘志平; 张志权; 刘井年; 宁娜
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-26
Anticipated expiration: 2029-09-25

Abstract

The utility model belongs to the technical field of hydraulic pressure, a oil pump and lubricating system is disclosed. The oil pump comprises a pump body and a valve core mechanism arranged in the pump body, wherein an oil inlet channel and an oil outlet channel are respectively arranged on two sides of the pump body, and the valve core mechanism is configured to suck lubricating oil into the pump body from the oil inlet channel and flow out from the oil outlet channel; and the oil blocking sleeve penetrates through the oil inlet channel, and the end face of one end, inserted into the oil inlet channel, of the oil blocking sleeve is higher than the inner wall of the pump body and used for storing part of lubricating oil in the pump body and avoiding the lubricating oil from flowing back to the oil pan completely. The lubricating oil pump utilizes the lubricating oil stored in the oil blocking sleeve to form an oil film in the circumferential direction of the valve core mechanism, so that a sealing effect is achieved, when oil is pumped again, the sealing performance in the pump body is good, and the oil absorption capacity can be improved, so that the problem that the oil pump cannot pump oil is effectively solved, and the lubricating oil pump is simple and effective, convenient to use and low in production cost.

Description

Oil pump and lubricating system

Technical Field

The utility model relates to the technical field of hydraulic pressure, especially, relate to an oil pump and lubricating system.

Background

The hand press oil pump in the diesel engine lubricating system can realize the pre-supply of lubricating oil, ensures good startability, improves the service life of the diesel engine, can also realize the function of discharging dirty oil simultaneously, and is convenient for change the lubricating oil.

The existing hand-press oil pump has the problem of difficult oil absorption due to poor sealing property in the pump body, so that the oil absorption effect is not ideal. In order to solve the problem of sealing performance, the conventional hand press oil pump adopts a mode of installing a one-way valve on a pipeline of an oil inlet, so that lubricating oil can be stored in the hand press oil pump, the sealing effect is ensured, and the oil absorption function is realized. However, in this way, the resistance of the one-way valve needs to be overcome during oil pumping, the oil absorption resistance is large, the problem of rapid oil pumping cannot be solved, the oil absorption capacity is poor, the structure is complex, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pump and lubricating system for improve the leakproofness in the pump body, the oil absorption ability is stronger, simple structure, and manufacturing cost is lower.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an oil pump, includes the pump body and set up in case mechanism in the pump body the both sides of the pump body are provided with oil feed passageway and oil outlet channel respectively, case mechanism is configured to follow lubricating oil is absorbed in the oil feed passageway in the pump body, and follow the oil outlet channel flows out, still includes:

keep off oil sleeve, it wears to locate the oil feed passageway, keep off oil sleeve inserts the terminal surface of the one end of oil feed passageway is higher than the inner wall of the pump body for store partial lubricating oil in the pump body.

Preferably, a through oil passage is formed in the oil blocking sleeve along the axial direction of the oil blocking sleeve, and an oil inlet is formed in one end of the through oil passage.

Preferably, the oil blocking sleeve comprises a connecting part, and the outer wall of the connecting part is in threaded connection with the inner wall of the oil inlet channel.

Preferably, the oil blocking sleeve comprises a limiting portion, the limiting portion is located below the connecting portion and connected with the connecting portion, the oil inlet channel is of a stepped hole structure, and the step of the oil inlet channel is used for limiting the limiting portion.

Preferably, the connecting portion and the limiting portion are of an integrally formed structure.

Preferably, the valve core mechanism comprises a fixed component and a movable component, and the movable component is configured to rotate relative to the pump body, so that the lubricating oil flowing through the oil blocking sleeve enters between the fixed component and the movable component and flows into the oil outlet channel through the movable component.

Preferably, the fixing assembly includes:

the fixed valve seat is positioned above the oil blocking sleeve, a lubricating oil channel is formed in the fixed valve seat, and an inlet of the lubricating oil channel is communicated with the oil blocking sleeve;

and the fixed valve is rotatably arranged on the fixed valve seat, and the fixed valve is selectively plugged at the outlet of the lubricating oil channel.

Preferably, the movable assembly comprises:

the movable valve seat is positioned above the fixed component, a communicating oil duct is arranged on the movable valve seat, and an inlet of the communicating oil duct is communicated with the pump body;

and the movable valve is rotatably arranged on the movable valve seat and selectively blocks the outlet of the communicating oil duct.

Preferably, the oil pump further comprises a handle connected to the movable valve seat, and the handle is configured to drive the movable valve seat to rotate relative to the pump body.

In order to achieve the purpose, the utility model also provides a lubricating system, including foretell oil pump.

The utility model has the advantages that:

the utility model provides an oil pump when will keep off the oil sleeve and wear to locate the oil feed passageway, inserts the terminal surface of the one end of oil feed passageway through keeping off the oil sleeve and is higher than the inner wall of the pump body for store partial lubricating oil in the pump body, avoid lubricating oil all to flow back to the oil pan. The lubricating oil stored by the oil blocking sleeve can form an oil film in the circumferential direction of the valve core mechanism to play a role in sealing, when oil is pumped again, the sealing property in the pump body is good, and the oil absorption capacity can be improved, so that the problem that the oil pump can not pump oil is effectively solved, and the lubricating oil pump is simple and effective, convenient to use and low in production cost.

The utility model also provides a lubricating system, including foretell oil pump. The lubricating system provided by the embodiment can effectively solve the problem that the oil pump cannot pump oil by arranging the oil pump, is simple and effective, is flexible to use, and has the advantages of high efficiency and reliability.

Drawings

Fig. 1 is a sectional view of the oil pump of the present invention;

fig. 2 is a schematic structural diagram of the oil blocking sleeve in the oil pump of the present invention.

In the figure:

1. a pump body; 2. a valve core mechanism; 3. an oil retaining sleeve; 4. a handle;

11. an oil inlet channel; 12. an oil outlet channel;

21. a fixing assembly; 211. fixing a valve seat; 212. fixing the valve;

22. a movable component; 221. a movable valve seat; 222. a movable valve;

31. a through oil passage; 32. a connecting portion; 33. a limiting part; 331. and (4) a boss.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; 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 in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The oil pump provided by the embodiment is suitable for a diesel engine lubricating system, and particularly relates to a hand-press oil pump. As shown in fig. 1, the oil pump includes a pump body 1, a valve core mechanism 2, an oil blocking sleeve 3 and a handle 4, the pump body 1 is a hollow shell structure, an oil inlet channel 11 and an oil outlet channel 12 are respectively arranged on two sides of the pump body 1, the valve core mechanism 2 is arranged inside the pump body 1, the handle 4 is connected to the valve core mechanism 2, and under the driving action of the handle 4, the valve core mechanism 2 is configured to suck lubricating oil into the pump body 1 from the oil inlet channel 11 and flow out from the oil outlet channel 12.

Because the existing hand-press oil pump adopts the mode of installing the one-way valve on the pipeline of the oil inlet, the hand-press oil pump is used for storing lubricating oil in the oil pump, but the resistance of the one-way valve needs to be overcome when the oil is pumped, and the problem of poor oil absorption capacity is caused by the condition of large oil absorption resistance. In order to solve the problem, an oil blocking sleeve 3 is arranged in the oil inlet channel 11, and when the oil blocking sleeve 3 is arranged in the oil inlet channel 11 in a penetrating mode, the end face of one end, inserted into the oil inlet channel 11, of the oil blocking sleeve 3 is higher than the inner wall of the pump body 1 and used for storing part of lubricating oil in the pump body 1 and preventing the lubricating oil from flowing back to the oil pan completely. The lubricating oil that utilizes to keep off the storage of oil sleeve 3 can form the oil film in case mechanism 2 circumference, plays sealed effect, and when the pump oil once more, the leakproofness is good in the pump body 1, and the oil absorption ability can obtain promoting to effectively solve the problem that the oil pump can not pump oil, and simple effective, convenient to use, manufacturing cost is lower.

Further, in order to ensure that the lubricating oil can enter the pump body 1 through the oil blocking sleeve 3, as shown in fig. 1-2, a through oil passage 31 is formed in the oil blocking sleeve 3 along the axial direction thereof, and an oil inlet is formed at one end of the through oil passage 31, so that the lubricating oil is pumped into the through oil passage 31 from the oil inlet and enters the pump body 1 under the action of the valve core mechanism 2.

If in long-time use, can have the condition that keeps off oil sleeve 3 and damage and need change, for the convenience is to keeping off oil sleeve 3's maintenance, sets up the mode that adopts the connection of dismantling between oil sleeve 3 and the oil feed passageway 11. Specifically, keep off oil sleeve 3 and include connecting portion 32 and spacing portion 33, the outer wall threaded connection of connecting portion 32 in the inner wall of oil feed passageway 11, through threaded connection's mode, the installation and the dismantlement of the oil sleeve 3 of being convenient for, and connection stability is good.

The limiting portion 33 is located below the connecting portion 32 and connected thereto, and specifically, a boss 331 is convexly provided on an outer wall of the oil blocking sleeve 3 to form the limiting portion 33. The oil inlet passage 11 is of a stepped hole structure, and the step of the oil inlet passage 11 is used for limiting the boss 331. The boss 331 and the step of oil feed passageway 11 through spacing portion 33 mutually support, have played the effect of prescribing a limit to the oil blocking sleeve 3 position to the terminal surface that guarantees oil blocking sleeve 3 and inserts the one end of oil feed passageway 11 is higher than the inner wall of the pump body 1, thereby realizes oil blocking sleeve 3 and keeps off the effect of oil and storage lubricating oil.

It can be understood that, in order to reduce the production cost, preferably, the connecting portion 32 and the limiting portion 33 are integrally formed, so that the assembly links of the produced parts can be reduced, and the purpose of saving the production time is achieved.

Further, in order to achieve the oil suction and discharge effects of the valve core mechanism 2, the valve core mechanism 2 includes a fixed component 21 and a movable component 22, the handle 4 is connected to the movable component 22, the handle 4 can perform reciprocating swing motion within a certain angle range, and under the driving action of the handle 4, the movable component 22 can rotate relative to the pump body 1, so that the lubricating oil flowing through the oil blocking sleeve 3 enters between the fixed component 21 and the movable component 22 and flows into the oil discharge channel 12 through the movable component 22.

Specifically, the fixing assembly 21 includes a fixing valve seat 211 and a fixing valve 212, the fixing valve seat 211 is disposed inside the pump body 1, and the fixing valve seat 211 and the pump body 1 are positioned by a positioning pin and then fixed. The fixed valve seat 211 is located above the oil blocking sleeve 3, a lubricating oil passage is formed in the fixed valve seat 211, and an inlet of the lubricating oil passage is communicated with the oil blocking sleeve 3. The fixed valve 212 is rotatably arranged on the fixed valve seat 211, and the fixed valve 212 is rotatably connected with the fixed valve seat 211 through a first pin shaft, so that the fixed valve 212 can rotate around the first pin shaft, and the fixed valve 212 is selectively plugged at an outlet of the lubricating oil channel.

Further, the movable assembly 22 includes a movable valve seat 221 and a movable valve 222, the movable valve seat 221 is located above the fixed assembly 21, the handle 4 is fixedly connected to the movable valve seat 221, a communicating oil channel is formed on the movable valve seat 221, and an inlet of the communicating oil channel is communicated with the pump body 1. The movable valve 222 is rotatably disposed on the movable valve seat 221, the handle 4 is configured to drive the movable valve seat 221 to rotate relative to the pump body 1, and the movable valve 222 and the movable valve seat 221 are rotatably connected through a second pin shaft, so that the movable valve 222 can rotate around the second pin shaft, and the movable valve 222 is selectively plugged at an outlet of the communication oil passage.

The oil pump provided by the embodiment takes a right part as an example, and the working process is as follows:

when the handle 4 rotates counterclockwise, the movable valve seat 221 and the movable valve 222 are driven to rotate counterclockwise together, at this time, the movable valve seat 221 and the movable valve 222 are in a closed state, along with the counterclockwise rotation of the movable valve seat 221, the volume between the fixed valve seat 211 and the movable valve seat 221 is reduced, and under the action of pressure difference, the fixed valve 212 is opened, so that the lubricating oil enters from the oil inlet of the oil blocking sleeve 3 and flows into the accommodating cavity between the fixed valve seat 211 and the movable valve seat 221 through the lubricating oil channel of the fixed valve seat 211;

when the handle 4 rotates clockwise, the movable valve seat 221 and the movable valve 222 are driven to rotate clockwise, the volume between the fixed valve seat 211 and the movable valve seat 221 is increased, the pressure is increased, the fixed valve 212 is in a closed state at the moment, the movable valve 222 is opened under the action of lubricating oil pressure, so that the lubricating oil in the accommodating cavity enters the oil outlet channel 12 through the communicating oil channel of the movable valve seat 221, flows out of the oil outlet channel 12, and swings repeatedly within a certain angle range along with the handle 4, and the function of pumping the oil is realized.

It is understood that the principle of the left part and the right part of the oil pump is similar, and therefore, the description is omitted.

The embodiment also provides a lubricating system which comprises the oil pump. The lubricating system provided by the embodiment can effectively solve the problem that the oil pump cannot pump oil by arranging the oil pump, is simple and effective, is flexible to use, and has the advantages of high efficiency and reliability.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides an oil pump, includes the pump body (1) and set up in case mechanism (2) in the pump body (1) the both sides of the pump body (1) are provided with oil feed passageway (11) and play oil passageway (12) respectively, case mechanism (2) are configured as with lubricating oil follow inhale in oil feed passageway (11) in the pump body (1), and follow it flows out to go out oil passageway (12), its characterized in that still includes:

keep off oil sleeve (3), it wears to locate oil feed passageway (11), it inserts to keep off oil sleeve (3) the terminal surface of the one end of oil feed passageway (11) is higher than the inner wall of the pump body (1) is used for storing partial lubricating oil in the pump body (1).

2. The oil pump according to claim 1, characterized in that a through oil passage (31) is formed in the oil blocking sleeve (3) along the axial direction thereof, and an oil inlet is formed at one end of the through oil passage (31).

3. The oil pump according to claim 1, characterized in that the oil baffle sleeve (3) comprises a connecting portion (32), and an outer wall of the connecting portion (32) is screwed to an inner wall of the oil inlet passage (11).

4. The oil pump according to claim 3, wherein the oil blocking sleeve (3) comprises a limiting part (33), the limiting part (33) is located below the connecting part (32) and connected with the connecting part, the oil inlet channel (11) is of a stepped hole structure, and the step of the oil inlet channel (11) is used for limiting the limiting part (33).

5. The oil pump according to claim 4, wherein the connecting portion (32) and the stopper portion (33) are of an integrally molded structure.

6. The oil pump according to claim 1, characterized in that the valve core mechanism (2) includes a fixed member (21) and a movable member (22), and the movable member (22) is configured to be rotatable relative to the pump body (1) so that the lubricating oil flowing through the oil blocking sleeve (3) enters between the fixed member (21) and the movable member (22) and flows into the oil outlet passage (12) through the movable member (22).

7. The oil pump according to claim 6, characterized in that the fixing assembly (21) comprises:

the fixed valve seat (211) is positioned above the oil blocking sleeve (3), a lubricating oil channel is formed in the fixed valve seat (211), and an inlet of the lubricating oil channel is communicated with the oil blocking sleeve (3);

and the fixed valve (212) is rotatably arranged on the fixed valve seat (211), and the fixed valve (212) is selectively blocked at the outlet of the lubricating oil channel.

8. The oil pump according to claim 7, characterized in that the movable assembly (22) comprises:

the movable valve seat (221) is positioned above the fixed component (21), a communicating oil channel is formed in the movable valve seat (221), and an inlet of the communicating oil channel is communicated with the pump body (1);

and the movable valve (222) is rotatably arranged on the movable valve seat (221), and the movable valve (222) is selectively blocked at the outlet of the communicating oil channel.

9. The oil pump according to claim 8, characterized in that the oil pump further comprises a handle (4), the handle (4) being connected to the movable valve seat (221), the handle (4) being configured to drive the movable valve seat (221) in rotation relative to the pump body (1).

10. A lubrication system comprising an oil pump according to any one of claims 1 to 9.