CN214998557U

CN214998557U - Shaft end sealing structure of manual gun plate of turbine engine

Info

Publication number: CN214998557U
Application number: CN202120834581.4U
Authority: CN
Inventors: 费秀国; 林钢
Original assignee: Nanjing Daneng Power Technology Co ltd
Current assignee: Nanjing Daneng Power Technology Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-12-03
Anticipated expiration: 2031-04-22

Abstract

The utility model relates to a seal structure technical field discloses a turbine machine gun plate axle head seal structure, including the turbine machine body, the left end of turbine machine body is equipped with the piston rod, the left end fixedly connected with gun plate of piston rod, the left end fixedly connected with sealing cylinder of turbine machine body, sealing cylinder cup joints the outer wall at the piston rod, sealing cylinder's inner chamber is seted up flutedly. The utility model discloses the heat that the inflatable seal circle produced when the piston rod during operation transmits the inboard of a sealed section of thick bamboo from concave type cardboard and spring through heat-conduction, then start circulating water pump and can drive the cooling liquid circulation in the sealed section of thick bamboo, thereby absorb the heat, avoid the too high life who influences inflatable seal circle of inflatable seal circle temperature, and peg graft in the inboard of stopper through the rubber spacing collar, thereby can conveniently pull out inflatable seal circle from concave type cardboard, further convenience is changed inflatable seal circle, shorten the time that inflatable seal circle changed.

Description

Shaft end sealing structure of manual gun plate of turbine engine

Technical Field

The utility model relates to a seal structure technical field specifically is a turbine engine hand gun board axle head seal structure.

Background

A turbine is a machine that interconverts energy and mechanical energy contained in a fluid medium. Not only compressors, but also turbines, flue gas turbines, expanders can be called turbines.

The prior patent (publication number: CN201920309662.5) discloses a shaft end sealing structure of a turbine gun plate, which comprises a turbine, a gun plate and an oil cylinder, wherein a piston rod of the oil cylinder penetrates through a turbine housing to be connected with the end part of the gun plate, a sealing sleeve is arranged on the turbine housing through which the piston rod penetrates, a guide groove with the width of 2mm and the depth of 1mm is arranged on the inner peripheral wall of the sealing sleeve positioned in the turbine housing, a nitrogen connector is arranged on the inner side wall of the guide groove, the nitrogen connector is communicated with a nitrogen pipe, and nitrogen is continuously introduced into the guide groove to carry out air sealing on an annular space in the piston rod and the sealing sleeve.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art and are not solved: the existing sealing sleeve is not provided with a heat dissipation mechanism, so that a piston rod can rub with the sealing sleeve to generate heat when working back and forth, the service life of the sealing sleeve is greatly shortened, the cost of replacing the sealing sleeve is increased, the sealing sleeve is inconvenient to replace, and the time of replacing the sealing sleeve is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turbine engine hand gun board axle head seal structure has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a shaft end sealing structure of a turbine gun plate comprises a turbine body, wherein a piston rod is arranged at the left end of the turbine body, a gun plate is fixedly connected at the left end of the piston rod, a sealing barrel is fixedly connected at the left end of the turbine body and sleeved on the outer wall of the piston rod, a groove is formed in the inner cavity of the sealing barrel, a spring is fixedly connected with the inner cavity of the groove, a concave clamping plate is fixedly connected at the other end of the spring, an inflating sealing ring is inserted in the groove and fixedly communicated with an inflating valve, the inflating sealing ring is inserted in the concave clamping plate, a rubber limiting ring is fixedly connected on the inflating sealing ring, limiting blocks are fixedly connected at the left end and the right end of the inner cavity of the concave clamping plate, a baffle is fixedly connected at the top of the inner cavity of the sealing barrel, and a circulating water pump is fixedly installed at the top of the sealing barrel, the left end and the right end of the circulating water pump are respectively fixedly connected with a water inlet pipe and a return pipe, and the water inlet pipe and the return pipe are fixedly communicated with the sealing cylinder.

As an optimized embodiment of the utility model, a threaded hole is opened on the sealed section of thick bamboo, threaded hole internal spiral is connected with sealed lid.

As a preferred embodiment of the present invention, the sealing cover is fixedly connected with a rotating plate.

As a preferred embodiment of the present invention, the rubber spacing ring and the inflatable sealing ring are communicated with each other.

As a preferred embodiment of the utility model, the outer wall of spring evenly scribbles anticorrosive paint.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model relates to a turbine engine hand gun board axle head seal structure, through inflatable seal circle, the rubber spacing collar, circulating water pump, the inlet tube, the back flow, a baffle, concave type cardboard, the stopper, the setting of spring and inflating valve, the heat that inflatable seal circle produced when piston rod during operation transmits the inboard to the sealed cylinder from concave type cardboard and spring through heat-conduction, then start circulating water pump and can drive the cooling liquid circulation in the sealed cylinder, thereby absorb the heat, avoid inflatable seal circle high temperature to influence inflatable seal circle's life, and peg graft in the inboard of stopper through the rubber spacing collar, deflate inflatable seal circle and rubber spacing collar, thereby can conveniently pull out inflatable seal circle from concave type cardboard, further convenience is changed inflatable seal circle, shorten the time that inflatable seal circle changed.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of a shaft end seal structure for a turbine engine pistol grip plate of the present invention;

FIG. 2 is a side view of the seal structure for the shaft end of the gun plate of the turbine engine, showing the connection between the piston rod and the seal cylinder;

FIG. 3 is a front view of a concave clamping plate of the shaft end sealing structure of the gun plate of the turbine engine according to the present invention;

fig. 4 is the utility model discloses a top view is connected with inflatable seal ring to turbine engine gun plate axle head seal structure's rubber spacing collar.

In the figure: 1. a turbine body; 2. a piston rod; 3. a sealing cylinder; 4. a water circulating pump; 5. a water inlet pipe; 6. a return pipe; 7. a baffle plate; 8. a groove; 9. a rotating plate; 10. a sealing cover; 11. a threaded hole; 12. an inflatable seal ring; 13. a concave card board; 14. a spring; 15. an air valve; 16. a limiting block; 17. a rubber spacing ring; 18. a pistol panel.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a shaft end sealing structure of a turbine gun plate comprises a turbine body 1, wherein a piston rod 2 is arranged at the left end of the turbine body 1, a gun plate 18 is fixedly connected at the left end of the piston rod 2, a sealing cylinder 3 is fixedly connected at the left end of the turbine body 1, the sealing cylinder 3 is sleeved on the outer wall of the piston rod 2, a groove 8 is formed in the inner cavity of the sealing cylinder 3, a spring 14 is fixedly connected with the inner cavity of the groove 8, a concave clamping plate 13 is fixedly connected at the other end of the spring 14, an inflating sealing ring 12 is inserted in the groove 8, an inflating valve 15 is fixedly communicated with the inflating sealing ring 12, the inflating sealing ring 12 is inserted in the concave clamping plate 13, a rubber limiting ring 17 is fixedly connected on the inflating sealing ring 12, limiting blocks 16 are fixedly connected at the left end and the right end of the inner cavity of the concave clamping plate 13, and a baffle 7 is fixedly connected at the top of the inner cavity of the sealing cylinder 3, the top of the sealing cylinder 3 is fixedly provided with a circulating water pump 4, the left end and the right end of the circulating water pump 4 are respectively and fixedly connected with a water inlet pipe 5 and a return pipe 6, the water inlet pipe 5 and the return pipe 6 are fixedly communicated with the sealing cylinder 3, the inflator pump is connected with the valve 15 through the arrangement of an inflatable sealing ring 12, a rubber limiting ring 17, the circulating water pump 4, the water inlet pipe 5, the return pipe 6, a baffle 7, a concave clamping plate 13, a limiting block 16, a spring 14 and a valve nozzle 15, so that the inflatable sealing ring 12 is inflated to expand, the inflatable sealing ring 12 can be tightly attached to the outer wall of the piston rod 2 by matching with the elasticity of the spring 14, the sealing performance of the sealing cylinder 3 and the piston rod 2 is improved, when the piston rod 2 works, heat generated by the inflatable sealing ring 12 is transmitted to the inner side of the sealing cylinder 3 from the concave clamping plate 13 and the spring 14 through heat conduction, then the circulating water pump 4 is started to drive the cooling liquid in the sealing cylinder 3 to circulate, thereby absorb the heat, avoid inflatable seal 12 high temperature to influence inflatable seal 12's life to peg graft in stopper 16 inboard through rubber spacing collar 17, thereby can conveniently pull out inflatable seal 12 from concave cardboard 13, further convenience is changed inflatable seal 12, shortens the time that inflatable seal 12 changed.

In this embodiment (as shown in fig. 2), a threaded hole 11 is formed in the sealing cylinder 3, a sealing cover 10 is spirally connected in the threaded hole 11, and the sealing cover 10 can be taken out from the threaded hole 11 by screwing the sealing cover 10, so that the cooling liquid can be further conveniently added into the inner cavity of the sealing cylinder 3.

In this embodiment (please refer to fig. 2), the rotating plate 9 is fixedly connected to the sealing cover 10, and the rotating plate 9 is arranged, so that an operator can conveniently hold the sealing cover by hand, and further the operator can conveniently screw the sealing cover 10.

In this embodiment (please refer to fig. 4), the rubber spacing ring 17 is communicated with the inflatable sealing ring 12, so that when the inflatable sealing ring 12 is inflated, the rubber spacing ring 17 can be inflated, and the firmness of the inner cavity of the rubber spacing ring 17 in the limiting block 16 can be achieved in a limiting and clamping manner.

In this embodiment (see fig. 2), the outer wall of the spring 14 is uniformly coated with an anti-corrosion paint, and the anti-corrosion paint can effectively protect the spring 14, so as to slow down the corrosion of the spring 14 and further prolong the service life of the spring 14.

It should be noted that the utility model relates to a shaft end sealing structure of a turbine engine pistol plate, which comprises a turbine engine body 1, a piston rod 2, a sealing cylinder 3, a circulating water pump 4, a water inlet pipe 5, a backflow pipe 6, a baffle 7, a groove 8, a rotating plate 9, a sealing cover 10, a threaded hole 11, an inflating sealing ring 12, a concave clamping plate 13, a spring 14, an inflating valve 15, a limiting block 16, a rubber limiting ring 17 and a pistol plate 18, wherein the components are all universal standard components or components known by technicians in the field, the structure and principle of the sealing structure are all known by technicians through technical manuals or conventional experimental methods, when the sealing structure works, the inflating pump is connected with the inflating valve 15, so that the inflating sealing ring 12 is inflated to expand, the inflating sealing ring 12 can be tightly attached to the outer wall of the piston rod 2 by matching with the elasticity of the spring 14, thereby increasing the sealing performance of the sealing cylinder 3 and the piston rod 2, heat generated by the inflatable sealing ring 12 when the piston rod 2 works is transmitted to the inner side of the sealing barrel 3 from the concave clamping plate 13 and the spring 14 through heat conduction, then the circulating water pump 4 is started to drive cooling liquid circulation in the sealing barrel 3, thereby absorbing the heat, the service life of the inflatable sealing ring 12 is prevented from being influenced by overhigh temperature of the inflatable sealing ring 12, the inflatable sealing ring 12 and the rubber limiting ring 17 are inserted into the inner side of the limiting block 16 through the rubber limiting ring 17, the inflatable sealing ring 12 and the rubber limiting ring 17 are deflated, thereby being capable of conveniently pulling the inflatable sealing ring 12 out of the concave clamping plate 13, further facilitating the replacement of the inflatable sealing ring 12, and shortening the replacement time of the inflatable sealing ring 12.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a turbine machine gun board axle head seal structure, includes turbine body (1), its characterized in that: the left end of the turbine body (1) is provided with a piston rod (2), the left end of the piston rod (2) is fixedly connected with a gun plate (18), the left end of the turbine body (1) is fixedly connected with a sealing cylinder (3), the sealing cylinder (3) is sleeved on the outer wall of the piston rod (2), the inner cavity of the sealing cylinder (3) is provided with a groove (8), the inner cavity of the groove (8) is fixedly connected with a spring (14), the other end of the spring (14) is fixedly connected with a concave clamping plate (13), an inflating sealing ring (12) is inserted in the groove (8), an inflating valve (15) is fixedly communicated on the inflating sealing ring (12), the inflating sealing ring (12) is inserted in the concave clamping plate (13), a rubber limiting ring (17) is fixedly connected on the inflating sealing ring (12), and limiting blocks (16) are fixedly connected at the left end and the right end of the inner cavity of the concave clamping plate (13), inner chamber top fixedly connected with baffle (7) of a sealed section of thick bamboo (3), the top fixed mounting of a sealed section of thick bamboo (3) has circulating water pump (4), both ends difference fixedly connected with inlet tube (5) and back flow (6) about circulating water pump (4), inlet tube (5) and back flow (6) all with a sealed section of thick bamboo (3) fixed intercommunication.

2. The shaft end seal structure for the gun plate of a turbine engine as defined in claim 1, wherein: the sealing barrel (3) is provided with a threaded hole (11), and a sealing cover (10) is spirally connected in the threaded hole (11).

3. The shaft end seal structure for the gun plate of a turbine engine as defined in claim 2, wherein: the sealing cover (10) is fixedly connected with a rotating plate (9).

4. The shaft end seal structure for the gun plate of a turbine engine as defined in claim 1, wherein: the rubber limiting ring (17) is communicated with the inflatable sealing ring (12).

5. The shaft end seal structure for the gun plate of a turbine engine as defined in claim 1, wherein: the outer wall of the spring (14) is uniformly coated with anticorrosive paint.