CN209977024U

CN209977024U - Sealing pin for hydraulic power unit

Info

Publication number: CN209977024U
Application number: CN201920472409.1U
Authority: CN
Inventors: 张波
Original assignee: Wuxi Heckman Hydraulic Machinery Manufacturing Co Ltd
Current assignee: Wuxi Heckman Hydraulic Machinery Manufacturing Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-01-21
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a hydraulic power unit is with sealed round pin, including the sealed round pin body, the both ends of sealed round pin body are connected respectively in first mounting hole and second mounting hole, the both sides of sealed round pin body are equipped with the annular groove, the middle part of sealed round pin body is equipped with middle part annular groove, the both ends outside of sealed round pin body is equipped with 30 degrees chamfers, the both ends of sealed round pin body are equipped with 45 degrees chamfers between two parties. The utility model discloses a novel floating radial seal structure has improved sealed reliability, has reduced the maintenance cost, has guaranteed the life of product.

Description

Sealing pin for hydraulic power unit

Technical Field

The utility model relates to a seal pin technical field specifically is a seal pin for hydraulic power unit.

Background

The sealing performance between a valve block and the valve block in a traditional hydraulic power unit is good and bad and is mainly determined by the flatness of a contact plane of the valve block, the size precision and the surface roughness of a sealing groove, but the sealing surface is often damaged due to poor flatness of the sealing surface, the problem of processing quality of the sealing groove, or the loosening of a fastening screw due to the action of vibration and pressure, so that oil leakage is generated on the joint surface, and therefore, a sealing pin for the hydraulic power unit is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic power unit is with seal pin to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydraulic power unit is with seal pin, includes the seal pin body, the both ends of seal pin body are connected respectively in first mounting hole and second mounting hole, the both sides of seal pin body are equipped with the annular groove, the middle part of seal pin body is equipped with middle part annular groove, the both ends outside of seal pin body is equipped with 30 degrees chamfers, the both ends of seal pin body are equipped with 45 degrees chamfers between two parties.

Preferably, the first mounting hole is located on the pump base, and the second mounting hole is located on the connecting valve block.

Preferably, two sets of the annular grooves are bilaterally symmetrical about the middle of the seal pin body.

Preferably, the diameter of the annular groove is 9.1 +/-0.5 mm.

Preferably, the diameter of the seal pin body is 11.92mm-11.97 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a novel floating radial seal structure has improved sealed reliability, has reduced the maintenance cost, has guaranteed the life of product.

Drawings

FIG. 1 is a schematic view of the structure of the seal pin body of the present invention;

fig. 2 is a schematic view of a first mounting hole structure of a seal pin body on a pump seat according to the present invention;

fig. 3 is a schematic diagram of a second mounting hole of the seal pin body on the connection valve block of the present invention.

In the figure: 1. a seal pin body; 2. an annular groove; 3. a middle annular groove; 4. chamfering at 30 degrees; 5. and (5) chamfering at 45 degrees.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a hydraulic power unit is with sealed round pin, includes sealed round pin body 1, the both ends of sealed round pin body 1 are connected respectively in first mounting hole and second mounting hole, the both sides of sealed round pin body 1 are equipped with annular groove 2, the middle part of sealed round pin body 1 is equipped with middle part annular groove 3, the both ends outside of sealed round pin body 1 is equipped with 30 degrees chamfers, the both ends of sealed round pin body 1 are equipped with 45 degrees chamfers between two parties.

Specifically, the first mounting hole is located on the pump base, and the second mounting hole is located on the connecting valve block.

Specifically, two sets of the annular grooves 2 are bilaterally symmetrical about the middle of the seal pin body 1.

Specifically, the diameter of the annular groove 2 is 9.1 mm plus or minus 0.5 mm.

Specifically, the diameter of the seal pin body 1 is 11.92mm-11.97 mm.

And (3) performing zinc plating passivation treatment on the surface of the seal pin body 1. The sharp edge is blunted, the burr is removed, and the surface is smooth and clean.

By adopting the novel floating radial sealing structure, the sealing reliability is improved, the maintenance cost is reduced, and the service life of the product is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a seal pin for hydraulic power unit, includes seal pin body (1), its characterized in that: the both ends of seal pin body (1) are connected respectively in first mounting hole and second mounting hole, the both sides of seal pin body (1) are equipped with annular groove (2), the middle part of seal pin body (1) is equipped with middle part annular groove (3), the both ends outside of seal pin body (1) is equipped with 30 degrees chamfers (4), the both ends of seal pin body (1) are equipped with 45 degrees chamfers (5) between two parties.

2. The seal pin for a hydraulic power unit according to claim 1, wherein: the first mounting hole is located on the pump base, and the second mounting hole is located on the connecting valve block.

3. The seal pin for a hydraulic power unit according to claim 1, wherein: the two groups of annular grooves (2) are bilaterally symmetrical about the middle part of the seal pin body (1).

4. The seal pin for a hydraulic power unit according to claim 1, wherein: the diameter of the annular groove (2) is 9.1 +/-0.5 mm.

5. The seal pin for a hydraulic power unit according to claim 1, wherein: the diameter of the seal pin body (1) is 11.92mm-11.97 mm.