CN211009077U

CN211009077U - Sealing device for suspended pendulum rotor

Info

Publication number: CN211009077U
Application number: CN201922260695.8U
Authority: CN
Inventors: 李和信; 杨万杰; 张庆军; 马久河; 王海艳
Original assignee: Hebei Sendwe Pump Manufacturing Co ltd
Current assignee: Hebei Sendwe Pump Manufacturing Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-07-14
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a pendulum rotor sealing device for in the high-pressure pump that has the pendulum rotor, locate the epaxial sealing gasket subassembly of pivot of pendulum rotor including the cover, and with the sealing gasket subassembly between via the seal cover subassembly of compensating part butt, seal cover subassembly is located the pivot including the cover, via the pad body that set screw and pendulum rotor are connected, and set up the first cell body in order to install first sealing washer on the pad body outer peripheral face, seal cover subassembly includes the annular cover body of circle, and set up the second cell body in order to install the second sealing washer on the external peripheral face of cover, the cover body is installed on the high-pressure pump so that the cover body removes along its axial direction via the direction subassembly. The utility model discloses a pendulum rotor sealing device can realize effectively sealing through the setting of gasket subassembly, sealing sleeve subassembly, first sealing washer and second sealing washer.

Description

Sealing device for suspended pendulum rotor

Technical Field

The utility model relates to a varactor formula liquid pump technical field especially relates to a pendulum rotor sealing device.

Background

In the prior art, the high-pressure pump with the pendulous rotor realizes the suction and discharge of liquid by realizing the change of the working volume through the relative motion between the pendulous rotor and the pump body, the high-pressure pump usually needs a sealing structure for leakage-proof treatment because of high internal pressure intensity, and the traditional sealing structure is contact sealing, realizes medium sealing by the direct contact of the end surface of a friction pair, and the abrasion of the sealing end surface can occur in long-term operation, thereby the sealing leakage occurs, and the maintenance and use cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a pendulum rotor sealing device can compensate the wearing and tearing of seal end face in real time, and reinforcing result of use.

The utility model adopts the technical proposal that: the utility model provides a pendulum rotor sealing device for in the high-pressure pump that has the pendulum rotor, locate including the cover the epaxial sealing gasket subassembly of pivot of pendulum rotor, and with seal cover subassembly via the compensator butt between the sealing gasket subassembly, sealed cover subassembly is located including the cover the epaxial, via set screw with the pad body that the pendulum rotor is connected, and set up in the first cell body in order to install first sealing washer on the pad body outer peripheral face, the sealing gasket subassembly includes the annular cover body of circle, and sets up in the second cell body in order to install the second sealing washer on the cover body outer peripheral face, the cover body via the direction subassembly install in on the high-pressure pump so that the cover body removes along its axial direction.

As a further limitation to the technical scheme, the sleeve body is sleeved on the inner hole of the rotating shaft and is provided with a stepped hole, and the compensating piece comprises a spring which is sleeved on one end of the rotating shaft and abutted against the stepped hole of the sleeve body and the other end of the compensating piece and abutted against the pad body.

As a further limitation to the above technical solution, a plurality of mounting holes are formed in the circumferential direction of the end surface of the sleeve body adjacent to the pad body, and the compensation piece includes strong permanent magnets respectively mounted in the mounting holes.

As a further limitation to the above technical solution, the number of the mounting holes is four.

As a further limitation to the above technical solution, a boss abutting against the compensation member is provided on an end surface of the pad body.

As a further limitation to the above technical solution, a blind hole is formed at the other end of the sleeve body away from the end adjacent to the pad body, and the guide assembly includes a guide post having one end inserted into the blind hole and the other end screwed to the high pressure pump.

As a further limitation to the above technical solution, the number of the guide posts is two.

Adopt above-mentioned technique, the utility model has the advantages of: effective sealing can be realized through the arrangement of the sealing gasket assembly, the sealing sleeve assembly, the first sealing ring and the second sealing ring; and the guide assembly can limit the axial moving path of the sealing sleeve assembly so as to keep the sealing gasket assembly and the sealing sleeve assembly attached under the compensation of the compensation piece and further improve the sealing effect.

Drawings

Fig. 1 is an assembly structure diagram of a pendulum rotor sealing device according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a gasket assembly according to the present invention;

FIG. 4 is a cross-sectional view of the gasket assembly of the present invention;

FIG. 5 is a schematic view of an assembly structure of the sealing gasket assembly and the fixing screw according to the present invention;

fig. 6 is a schematic view of the installation structure of the sealing sleeve assembly and the guiding assembly of the present invention;

FIG. 7 is a cross-sectional view of a boot seal assembly of the present invention;

fig. 8 is a schematic structural view of the guide assembly of the present invention;

fig. 9 is another schematic structural diagram of the sealing sleeve assembly of the present invention.

In the figure:

1-a high-pressure pump, 2-a pendulous rotor, 3-a rotating shaft, 4-a side plate, 5-a sealing gasket assembly, 51-a gasket body, 52-a first groove body, 53-a first sealing ring, 54-a boss, 55-an operation hole, 56-a fixing screw, 6-a sealing sleeve assembly, 61-a sleeve body, 611-a mounting hole, 612-a blind hole, 62-a second groove body, 63-a second sealing ring, 7-a spring and 8-a guide column.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the pendulum rotor sealing device is used in a high-pressure pump with a pendulum rotor, and the whole structure of the pendulum rotor sealing device comprises a sealing gasket assembly, a sealing sleeve assembly, a compensating part and a guiding assembly, wherein the sealing gasket assembly is sleeved on a rotating shaft of the pendulum rotor, the sealing sleeve assembly is abutted against the sealing gasket assembly through the compensating part, and effective sealing can be realized through the arrangement of the sealing gasket assembly and the sealing sleeve assembly; and under the compensation of the compensation piece, the joint of the sealing gasket assembly and the sealing sleeve assembly can be kept, and the sealing effect is further improved.

As shown in fig. 2 to 5, the overall structure of the gasket assembly includes a gasket body, a first groove and a first sealing ring, specifically, the gasket body is disposed in a circular ring shape, and is sleeved on the rotating shaft and connected with the pendulum rotor via a fixing screw.

As shown in fig. 6 to 9 combined with fig. 2, the overall structure of the sealing sleeve assembly includes a sleeve body, a second groove body and a second sealing ring, specifically, the sleeve body is arranged in a circular ring shape, and an inner hole of the sleeve body in the rotating shaft is arranged in a stepped hole, the second groove body is arranged on the outer peripheral surface of the sleeve body for installing the second sealing ring.

As shown in fig. 2 and 6, the compensation element includes a spring whose one end is sleeved on the rotation shaft and abutted to the stepped hole of the sleeve body, and whose other end is abutted to the pad body, and as shown in fig. 9, the compensation element may also be a strong permanent magnet, specifically, a plurality of mounting holes are provided on the circumference of the end surface of the sleeve body adjacent to the pad body, and the compensation element includes strong permanent magnets respectively and correspondingly mounted in the mounting holes.

Effective sealing can be realized through the arrangement of the sealing gasket assembly, the sealing sleeve assembly, the first sealing ring and the second sealing ring; and the guide assembly can limit the axial moving path of the sealing sleeve assembly so as to keep the sealing gasket assembly and the sealing sleeve assembly attached under the compensation of the compensation piece and further improve the sealing effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be covered by the present invention within the technical scope of the present invention, and the technical solution obtained by replacing or changing the technical idea of the present invention with equivalents.

Claims

1. A pendulum rotor seal arrangement for use in a high pressure pump having a pendulum rotor, comprising: locate including the cover epaxial sealing gasket subassembly of pendulum rotor that dangles, and with via the sealing gasket subassembly of compensating part butt between the sealing gasket subassembly, the sealing gasket subassembly is located including the cover epaxial, via set screw with the pad body that pendulum rotor is connected, and set up in fill up the first cell body in order to install first sealing washer on the body outer peripheral face, the sealing gasket subassembly includes the annular cover body of circle, and set up in set second cell body in order to install the second sealing washer on the body outer peripheral face, the cover body via the direction subassembly install in on the high-pressure pump so that the cover body is followed its axial direction and is removed.

2. The pendulum rotor seal arrangement of claim 1, wherein: the cover of the cover body is arranged in the rotating shaft, the inner hole is arranged in a stepped hole, and the compensating part is arranged in the rotating shaft in a sleeved mode, wherein one end of the compensating part is abutted to the stepped hole of the cover body, and the other end of the compensating part is abutted to the spring of the pad body.

3. The pendulum rotor seal arrangement of claim 1 or 2, wherein: the end face of the sleeve body adjacent to the pad body is circumferentially provided with a plurality of mounting holes, and the compensation piece comprises strong permanent magnets which are respectively and correspondingly mounted in the mounting holes.

4. The pendulum rotor seal arrangement of claim 3, wherein: the number of the mounting holes is four.

5. The pendulum rotor seal arrangement of claim 1, wherein: and a boss which is abutted with the compensation part is arranged on the end face of the pad body.

6. The pendulum rotor seal arrangement of claim 1, wherein: the other end of the sleeve body, which is far away from the end adjacent to the pad body, is provided with a blind hole, and the guide assembly comprises a guide post, one end of the guide post is inserted into the blind hole, and the other end of the guide post is in threaded connection with the high-pressure pump.

7. The pendulum rotor seal arrangement of claim 6, wherein: the guide posts are two.