CN210461039U

CN210461039U - Oil pump sealing device

Info

Publication number: CN210461039U
Application number: CN201921176394.0U
Authority: CN
Inventors: 朱伟飞
Original assignee: Ninghai Benyi Machinery Co ltd
Current assignee: Ninghai Benyi Machinery Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-05
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses an oil pump sealing device belongs to oil pump technical field, including the cylinder body, big plunger, little plunger, running-board and big plunger rod are provided with the seal groove in the cylinder body, and big plunger high-pressure seal circle is installed in the seal groove, and big plunger dust ring lies in big plunger high-pressure seal circle, cleans the ring and installs on little plunger, and little plunger high-pressure seal circle is hugged closely and is cleaned the ring and install on little plunger, installs little plunger dust ring on little plunger. The comb-shaped wiping ring has the advantages that the sealing groove is formed in the placement position of the sealing ring, the comb-shaped wiping ring is arranged below the sealing ring, the loss of the grinding material of the sealing ring is reduced, the service life of the sealing ring is prolonged, and the maintenance cost of the sealing ring is reduced.

Description

Oil pump sealing device

Technical Field

The utility model relates to an oil pump technical field, in particular to oil pump sealing device.

Background

With the rapid development of social economy and the continuous improvement of living standard, the body shadow of the manual hydraulic vehicle is visible everywhere. The sealing member of pneumatic cylinder is the most important component in the pneumatic cylinder, and it can cause fluid to leak to seal badly to make the mechanism motion feel unstable, reduce the volume efficiency, the polluted environment can not establish pressure when serious, and the system can not work, and the loss that often causes of the inefficacy of individual sealing member probably is ten million times of sealing member value itself, how to design a set of safe and reliable sealing system becomes the difficult problem that awaits solution in the trade.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an oil pump sealing device lays the department at the sealing washer and is provided with the seal groove to it cleans the ring to be provided with the comb shape under the sealing washer, has reduced the loss of sealing washer abrasive material, has prolonged sealing washer life, has reduced the maintenance cost of sealing washer.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oil pump sealing device, includes the cylinder body, big plunger 1, little plunger 2, running-board 3 and big plunger rod 4, still includes big plunger high pressure seal ring 6, big plunger dust ring 5, cleans ring 10 and little plunger high pressure seal ring 9, be provided with seal groove 7 in the cylinder body, big plunger high pressure seal ring 6 is installed in seal groove 7, big plunger dust ring 5 is located big plunger high pressure seal ring 6, clean ring 10 and install on little plunger 2, little plunger high pressure seal ring 9 is hugged closely and is cleaned ring 10 and install on little plunger 2, install little plunger dust ring 8 on little plunger 2.

Preferably, the wiping ring 10 is provided with comb-shaped teeth. The beneficial effects are that: the structure of the wiping ring is simple, the installation is convenient, the working medium can be allowed to pass through the structure, the wiping does not need to bear too much pressure, and the service life of the wiping ring can be prolonged.

Preferably, the dustproof ring and the sealing ring are provided with corresponding mounting grooves on the cylinder body. The beneficial effects are that: the design ensures that the dustproof ring and the sealing ring can not follow the rising and falling motion of the plunger piston, thereby preventing oil leakage.

Preferably, the inner edges of the large plunger dust ring 5 and the small plunger dust ring 8 are sharp lip-shaped structures. The beneficial effects are that: by the design, external dust and the like can be effectively prevented from entering the sealing mechanism.

Compared with the prior art, the beneficial effects of the utility model are that: the sealing ring is provided with a sealing groove at the placement part, and the comb-shaped wiping ring is arranged below the sealing ring, so that the loss of the grinding material of the sealing ring is reduced, the service life of the sealing ring is prolonged, and the maintenance cost of the sealing ring is reduced.

Drawings

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

fig. 2 is a cross-sectional view of the present invention at a;

in the figure: 1. a large plunger; 2. a small plunger; 3. a foot pedal; 4. a large plunger rod; 5. a large plunger piston dustproof ring; 6. a large plunger high-pressure sealing ring; 7. a sealing groove; 8. a small plunger dust ring; 9. a small plunger high pressure seal ring; 10. and (4) wiping the ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The first embodiment is as follows: as shown in the figure, an oil pump sealing device, including the cylinder body, big plunger 1, little plunger 2, running-board 3 and big plunger rod 4 still include big plunger high pressure seal ring 6, big plunger dust ring 5, clean ring 10 and little plunger high pressure seal ring 9, be provided with seal groove 7 in the cylinder body, big plunger high pressure seal ring 6 is installed in seal groove 7, big plunger dust ring 5 is located big plunger high pressure seal ring 6, clean ring 10 installs on little plunger 2, little plunger high pressure seal ring 9 is hugged closely and is cleaned ring 10 and install on little plunger 2, install little plunger dust ring 8 on little plunger 2, the dust ring inner edge is sharp-pointed lip structure, is provided with the tooth mouth of comb shape on the cleaning ring 10.

Example two: the other structures are the same as the first embodiment, and the difference is that the large plunger and the small plunger are provided with two layers of dust rings.

Claims

1. The utility model provides an oil pump sealing device, includes cylinder body, big plunger (1), little plunger (2), running-board (3) and big plunger rod (4), its characterized in that: still include big plunger high pressure seal circle (6), big plunger dust ring (5), clean ring (10) and little plunger high pressure seal circle (9), be provided with seal groove (7) in the cylinder body, the cross sectional shape of seal groove is the rectangle, install in seal groove (7) big plunger high pressure seal circle (6), big plunger dust ring (5) are located big plunger high pressure seal circle (6), clean ring (10) and install on little plunger (2), little plunger high pressure seal circle (9) are hugged closely and are cleaned ring (10) and install on little plunger (2), install little plunger dust ring (8) on little plunger (2).

2. The oil pump seal arrangement of claim 1, wherein: the wiping ring (10) is provided with a comb-shaped tooth opening.

3. The oil pump seal arrangement of claim 1, wherein: the dustproof ring and the sealing ring are provided with corresponding mounting grooves on the cylinder body.

4. The oil pump seal arrangement of claim 1, wherein: the inner edges of the large plunger piston dust ring (5) and the small plunger piston dust ring (8) are sharp lip-shaped structures.