CN220204114U - Hydraulic pump sealing structure - Google Patents

Abstract

The utility model discloses a hydraulic pump sealing structure, which comprises a hydraulic pump body, wherein the front end of the hydraulic pump body is provided with a front end cover, the rear end of the hydraulic pump body is provided with a sealing component, the sealing component comprises a rear end cover, four first connecting lugs are uniformly fixed on the edge of the rear end cover, four second connecting lugs are uniformly fixed on the shell of the hydraulic pump body, the first connecting lugs are fixed on the corresponding second connecting lugs through screws, and a sealing column is further fixed at the center of the inner wall of the end cover of the rear end cover. This kind of hydraulic pump seal structure is provided with the seal post through the inboard at the rear end portion for insert the inside sealing of hydraulic pump body, can extrude the tip of sealed hydraulic pump body when covering the rear end cap, and the inboard rubber circle of rear end cap is second also can seal in the shell department of hydraulic pump body, utilizes engaging lug and screw rod combination to fix the rear end cap on the hydraulic pump body, and the middle part of screw rod exposes, conveniently cuts off the rear end cap from the middle part of screw rod and tear down, thereby improves the practicality.

Description

Hydraulic pump sealing structure

Technical Field

The utility model relates to the field of hydraulic pump sealing covers, in particular to a hydraulic pump sealing structure.

Background

Hydraulic pump, define: the hydraulic system power element which is driven by an engine or a motor and converts mechanical energy into hydraulic energy is the power element of the hydraulic system, oil is sucked from a hydraulic oil tank by the engine or the motor to form pressure oil which is discharged and sent to an executing element, and the end part of a common hydraulic pump is sealed by a rear end cover, however, the rear end cover has the following defects: 1. the bolt is difficult to unscrew and take off after being rusted, and the bolt is inconvenient to cut off, so that the rear end cover is difficult to open; 2. the sealing effect is still to be improved because the rubber pad at the joint can only contact with the end face by means of joint sealing of the end part, and the sealing effect is a common technical problem when the rear end cover is adopted by the existing hydraulic pump for sealing, and is also a problem which is urgently needed to be solved by the personnel in the field.

In order to solve the problems, a hydraulic pump sealing structure is provided, and the sealing structure aims at improving the defects of the prior art.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a hydraulic pump sealing structure, and in order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a hydraulic pump sealing structure, which comprises a hydraulic pump body, wherein the front end of the hydraulic pump body is provided with a front end cover, the rear end of the hydraulic pump body is provided with a sealing component, the sealing component comprises a rear end cover, four first connecting lugs are uniformly fixed on the edge of the rear end cover, four second connecting lugs are uniformly fixed on a shell of the hydraulic pump body, the first connecting lugs are fixed on the corresponding second connecting lugs through screws, and a sealing column is further fixed at the center of the inner wall of the end cover of the rear end cover.

Preferably, the inner end of the rear end cover is opened, and the rear end cover is tightly sleeved at the opening of the end part of the hydraulic pump body.

Preferably, a first rubber ring is adhered to the sealing column, a rubber gasket is adhered to the inner wall of the end cover of the rear end cover, and a second rubber ring is adhered to the inner wall of the rear end cover.

Preferably, the sealing post is inserted in the hydraulic pump body in a sealing way, the inner wall of the end cover of the rear end cover is clung to the shell at the end part of the hydraulic pump body, and the inner wall of the rear end cover is clung to the outer side of the shell at the end part of the hydraulic pump body.

Preferably, the distance between the inner wall of the rear end cover and the sealing column is 2mm larger than the thickness of the shell of the hydraulic pump body.

Compared with the prior art, the utility model has the following beneficial effects:

through being provided with the seal post in the back tip inboard for insert the inside sealed of hydraulic pump body, terminal surface inboard at the rear end cap is provided with the rubber pad, but the tip of extrusion seal hydraulic pump body when covering the rear end cap, the rear end cap cover is in the hydraulic pump body tip outside simultaneously, the inboard rubber circle of rear end cap II also can seal in the shell department of hydraulic pump body, utilize engaging lug and screw rod combination to fix the rear end cap on the hydraulic pump body, the middle part of screw rod exposes, if the screw rod rust can't dismantle the time, the middle part of conveniently follow the screw rod cuts, thereby pull down the rear end cap, adopt this kind of structural design's hydraulic pump seal structure, can realize three-layer seal, improve sealed effect greatly, also conveniently cut the bolt off and dismantle the rear end cap simultaneously, solve the technical defect that exists among the prior art, and reach corresponding technological effect, thereby improve the practicality.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

fig. 2 is a schematic view of the structure of the inside of the rear end cap in the present utility model.

In the figure: 1. a hydraulic pump body; 2. a front end cover; 3. a rear end cover; 4. a first connecting lug; 5. a second connecting lug; 6. a screw; 7. a sealing column; 8. a first rubber ring; 9. a rubber pad; 10. and a second rubber ring.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples

As shown in fig. 1-2, a hydraulic pump seal structure, including hydraulic pump body 1, hydraulic pump body 1's front end is provided with front end housing 2, hydraulic pump body 1's rear end is provided with seal assembly, seal assembly includes rear end housing 3, be used for sealing hydraulic pump body 1's rear end portion, evenly be fixed with four engaging lug 4 on the edge of rear end housing 3, hydraulic pump body 1's casing is last evenly to be fixed with four engaging lug two 5, and engaging lug one 4 is fixed in on the engaging lug two 5 that corresponds through screw rod 6, be convenient for take-up fixedly, make things convenient for screw rod 6 to cut it off when rust simultaneously, rear end housing 3's inner wall's center department still is fixed with sealing post 7, be used for the stopper to carry out the shutoff seal in hydraulic pump body 1, rear end housing 3's inner end opening, and rear end housing 3 tightly overlaps the opening part at hydraulic pump body 1 tip, be used for the cover to seal in hydraulic pump body 1 outside, adhesive rubber circle one 8 on the sealing post 7, adhesive rubber circle one's inner wall is last adhesive rubber circle 9 on the inner wall of rear end housing 3, and adhesive rubber circle two 10 on the inner wall of rear end housing 3, increase the compactability, improve the seal effect of laminating, seal body 7 is inserted in the inner wall 1, be used for sealing post 1's inside the sealing post 3, can be more than the sealing post 1, seal ring 1 is outside at the inner end housing 1, the sealing post 1, can be guaranteed at the sealing post 1, seal ring is sealed outside at the inner end 1, and the end housing 1, can be closely seal post 1, and seal post 1 thickness is well seal post 1 is guaranteed at the inside end thickness is well, can be used for sealing end seal post 1.

The principle and the advantages of the utility model are that: when the rear end cover 3 is covered, the rear end cover 3 is extruded and plugged at the rear end part of the hydraulic pump body 1, the first rubber ring 8 on the sealing column 7 is tightly attached to the inner wall of the hydraulic pump body 1 to seal, the end face of the hydraulic pump body 1 is extruded and sealed on the rubber pad 9 at the inner side of the end face of the rear end cover 3, the second rubber ring 10 at the inner side of the rear end cover 3 is tightly attached to the shell at the rear end of the hydraulic pump body 1 to seal, oil stains, dust and other impurities at the outer side of the hydraulic pump body 1 are prevented from entering between the rear end cover 3 and the hydraulic pump body 1, sealing protection is carried out at the outer side of the attached part, then the rear end cover 3 is rotated, the first connecting lug 4 on the rear end cover 3 is opposite to the second connecting lug 5 on the hydraulic pump body 1 one by one, and then the first connecting lug 4 is tightly fixed by utilizing the screw 6, so that the rear end of the hydraulic pump body 1 is sealed, the hydraulic pump sealing structure with the structural design can realize three-layer sealing, the sealing effect is greatly improved, and the technical defects existing in the prior art are overcome, and the practicability is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a hydraulic pump seal structure, includes hydraulic pump body (1), its characterized in that: the front end of the hydraulic pump body (1) is provided with a front end cover (2), the rear end of the hydraulic pump body (1) is provided with a sealing assembly, the sealing assembly comprises a rear end cover (3), four first connecting lugs (4) are uniformly fixed on the edge of the rear end cover (3), four second connecting lugs (5) are uniformly fixed on the shell of the hydraulic pump body (1), the first connecting lugs (4) are fixed on the corresponding second connecting lugs (5) through screws (6), and sealing columns (7) are further fixed at the center of the inner wall of the end cover of the rear end cover (3).

2. The hydraulic pump seal structure as recited in claim 1 wherein: the inner end of the rear end cover (3) is opened, and the rear end cover (3) is tightly sleeved at the opening of the end part of the hydraulic pump body (1).

3. The hydraulic pump seal structure as recited in claim 1 wherein: the sealing post (7) is adhered with a rubber ring I (8), the inner wall of the end cover of the rear end cover (3) is adhered with a rubber pad (9), and the inner wall of the rear end cover (3) is adhered with a rubber ring II (10).

4. The hydraulic pump seal structure as recited in claim 1 wherein: the sealing column (7) is inserted into the hydraulic pump body (1) in a sealing mode, the inner wall of the end cover of the rear end cover (3) is clung to the shell at the end portion of the hydraulic pump body (1), and the inner wall of the rear end cover (3) is clung to the outer side of the shell at the end portion of the hydraulic pump body (1).

5. The hydraulic pump seal structure as recited in claim 1 wherein: the distance between the inner wall of the rear end cover (3) and the sealing column (7) is 2mm larger than the thickness of the shell of the hydraulic pump body (1).