CN215109649U

CN215109649U - Internal-sealing built-in shaft seal mechanism and self-cooling pump

Info

Publication number: CN215109649U
Application number: CN202121458251.6U
Authority: CN
Inventors: 魏邢一
Original assignee: Suzhou Yiweike Environmental Protection Machinery Co ltd
Current assignee: Suzhou Yiweike Environmental Protection Machinery Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-10
Anticipated expiration: 2031-06-29

Abstract

The utility model provides an internally sealed built-in shaft seal mechanism and a self-cooling pump, wherein the built-in shaft seal mechanism comprises a shaft seal body and a sealing ring, the first end of the shaft seal body is provided with an annular mounting groove for mounting the sealing ring, and the sealing ring comprises an annular clamping and embedding part matched with the mounting groove; the shaft seal body includes the cavity passageway, be equipped with interior solid fixed ring in the cavity passageway, interior solid fixed ring is located the first end of shaft seal body. The utility model discloses simple structure can improve its tip bearing capacity from the internal side of shaft seal, improves bearing seal mechanism leakproofness, and is sealed effectual, is difficult for revealing, helps improving the life of pump.

Description

Internal-sealing built-in shaft seal mechanism and self-cooling pump

Technical Field

The utility model relates to a water pump seal technical field especially relates to an inner seal's built-in bearing seal mechanism and self-cooling pump.

Background

A pump is a machine that delivers or pressurizes a fluid; it transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase.

The pump has multiple specifications, and its power is big or small not, can select for use the pump of different powers according to actual need in the use. The diameter of the shaft seal in the high-power pump is large, the diameter of the shaft seal in the low-power pump is small, when the high-power pump works, after the inner cavity of the pump generates large pressure, the pressure bearing capacity of the shaft seal is poor due to the large diameter of the shaft seal in the high-power pump, and the situation that the joint of the shaft seal and the sealing ring is subjected to stress extrusion deformation is often caused, so that liquid in the pump is leaked. The sealing performance of the whole shaft sealing mechanism is poor, the use of the pump is influenced, and the service life of the pump is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can be suitable for built-in bearing seal mechanism and self-cooling pump of high-power pump's inner seal, improve its leakproofness from bearing seal mechanism inboard, sealed effectual, difficult the revealing helps improving the life of pump.

In order to solve the technical problem, the utility model provides an internally sealed built-in shaft seal mechanism, which comprises a shaft seal body and a sealing ring, wherein the first end of the shaft seal body is provided with an annular mounting groove for mounting the sealing ring, and the sealing ring comprises an annular clamping and embedding part matched with the mounting groove;

the shaft seal body includes the cavity passageway, be equipped with interior solid fixed ring in the cavity passageway, interior solid fixed ring is located the first end of shaft seal body.

Further, the sealing ring comprises a ring body, and the clamping and embedding part is integrally constructed with the ring body and extends along the outer side of the ring body.

Furthermore, a sealing ring extending along the circumferential direction of the clamping and embedding part is arranged on the inner side of the clamping and embedding part.

Furthermore, the inner fixing ring is made of metal or nonmetal rigid acid and alkali resistant materials.

Further, be equipped with on the inside wall of cavity passageway and be used for the installation interior fixed ring's fixed slot, the fixed slot certainly the cavity passageway extends to the terminal surface of shaft seal body first end, interior fixed ring is located in the fixed slot, interior fixed ring's outer wall is hugged closely the inner wall of fixed slot, and its tip is not more than the terminal surface of shaft seal body first end.

Furthermore, the first end of the shaft seal body is provided with at least one positioning block, the positioning block and the shaft seal body are integrally structured and extend outwards along the first end of the shaft seal body, and the sealing ring is provided with a positioning groove corresponding to the positioning block.

Furthermore, the middle part of the shaft seal body is provided with a telescopic part.

Furthermore, an expansion spring is arranged in the expansion part of the shaft seal body and is positioned on the inner side of the hollow channel.

The utility model also provides a, a self-cooling pump, built-in bearing seal mechanism including foretell inner seal.

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

the utility model provides an internally sealed built-in shaft seal mechanism, its simple structure, the modern design, easily preparation, the leakproofness is good, through installing rigidity internal fixation ring in the hollow passageway inboard of shaft seal body, because internal fixation ring has stronger rigidity, can support the shaft seal body in the circumference of the shaft seal body end in the inboard of hollow passageway, prevent that the pressure in the pump chamber from extruding the shaft seal body and influencing the leakproofness of shaft seal body and sealing ring junction; simultaneously, set up the sealing washer in inlay card portion inboard for one side and the interior solid fixed ring that correspond in the mounting groove have stable leakproofness between the solid fixed ring, have avoided in the liquid infiltration mounting groove of pump chamber and revealed.

The self-cooling pump using the internally sealed built-in shaft seal mechanism can be suitable for a high-power pump and prolongs the service life of the pump.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the disassembled structure of FIG. 1

Fig. 3 is a schematic structural view of the shaft seal body provided by the present invention;

fig. 4 is a sealing ring provided by the present invention.

Reference numbers in the figures:

1. a shaft seal body; 11. mounting grooves; 12. a hollow channel; 13. a telescopic part; 2. a seal ring; 21. a ring body; 22. a snap-fit portion; 3. an inner fixing ring; 4. fixing grooves; 5. a seal ring; 6. positioning blocks; 7. positioning a groove; 8. a telescoping spring.

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 to 4, an internal seal built-in shaft seal mechanism includes a shaft seal body 1 and a seal ring 2, a first end of the shaft seal body 1 is provided with an annular mounting groove 11 for mounting the seal ring 2, the seal ring 2 includes an annular clamping and embedding portion 22 matching with the mounting groove 11, the seal ring 2 includes a ring body 21, the clamping and embedding portion 22 and the ring body 21 are integrally constructed and extend along an outer side of the ring body 21, the integral construction of the clamping and embedding portion 22 and the ring body 21 ensures rigidity of the seal ring 2, the seal ring 2 and the shaft seal body 1 are fixed by the clamping and embedding portion 22, and the seal ring 2 and the shaft seal body 1 can synchronously rotate during operation;

the shaft seal body 1 comprises a hollow passage 12, an internal fixing ring 3 is arranged in the hollow passage 12, and the internal fixing ring 3 is located at the first end of the shaft seal body 1.

Specifically speaking, be equipped with on the inside wall of cavity passageway 12 and be used for installing the fixed slot 4 of internal fixation ring 3, fixed slot 4 certainly cavity passageway 12 extends to the terminal surface of the first end of shaft seal body 1, internal fixation ring 3 is located in fixed slot 4, the outer wall of internal fixation ring 3 is hugged closely the inner wall of fixed slot 4, and its tip is no longer than the terminal surface of the first end of shaft seal body 1.

Wherein, the inner fixing ring 3 is made of metal or nonmetal rigid acid and alkali resistant materials.

Through at the inboard rigid internal fixation ring 3 of installing of hollow channel 12 of shaft seal body 1, because internal fixation ring 3 has stronger rigidity, simultaneously, all install internal fixation ring 3 and sealing ring 2 at the same one end of shaft seal body 1, can be in hollow channel 12 the inboard and support shaft seal body 1 in the circumference of shaft seal body 1 tip, prevent that the pressure in the pump chamber from extrudeing shaft seal body 1 and influencing the leakproofness of shaft seal body 1 with sealing ring 2 junction.

Simultaneously, inlay card portion 22's inboard is equipped with along its circumference extension's sealing washer 5, inlay card portion 22's inboard corresponds with interior solid fixed ring 3, interior solid fixed ring 3 can avoid the pressure of pump inner chamber to correspond the department extrusion from sealing ring 22 and mounting groove 11 through its rigidity, make one side that corresponds interior solid fixed ring 3 in the mounting groove 11 and interior solid fixed ring 3 between have stable leakproofness, because interior solid fixed ring 3 sets up the inner wall at hollow passage 12, the bearing capacity of the department that sealing ring 22 and interior solid fixed ring 3 correspond has been strengthened, avoided in the internal liquid infiltration mounting groove 11 of pump and lead to revealing of shaft seal body 1 mechanism.

The first end of shaft seal body 1 is equipped with at least one locating piece 6, locating piece 6 with shaft seal body 1 integral type structure to along the first end of shaft seal body 1 extends to the outside, seted up on the sealing ring 2 and corresponded the constant head tank 7 of locating piece 6, in this embodiment, locating piece 6 is equipped with two and the symmetry sets up the first end at shaft seal body 1, and constant head tank 7 on the sealing ring 2 is equipped with two and with locating piece 6 one-to-one. The sealing ring 2 is arranged in the mounting groove 11 of the shaft seal body 1 and is clamped and embedded on the positioning block 6 of the shaft seal body 1 through the positioning groove 7 of the sealing ring, so that the sealing ring 2 can synchronously rotate with the shaft seal body 1 in the rotation process of the shaft seal body 1.

As shown in fig. 1, in this embodiment, the middle portion of the shaft seal body 1 has a telescopic portion 13, a telescopic spring 8 is disposed in the telescopic portion 13 of the shaft seal body 1, and the telescopic spring 8 is located inside the hollow channel 12, so that the sealing ring 2 can abut against an external stationary ring (not shown in the figure) by a telescopic elastic force thereof, thereby achieving sealing. The structure does not relate to the invention point, and the prior art can be adopted, so that the detailed description is omitted.

The application provides a pair of self-cooling pump, this self-cooling pump is high-power pump, it includes foretell built-in self-cooling bearing seal mechanism, this structural installation is in the pump body of high-power self-cooling pump, can bear the great pressure in the pump chamber, need not set up the sealed pad at mounting groove 11 among the prior art moreover, and guarantee the leakproofness of bearing seal mechanism, can not produce the sealed circumstances of liquid medicine corrosion, avoid the liquid of bearing seal mechanism to reveal, improved the life of the pump body.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. An internally sealed built-in shaft seal mechanism is characterized by comprising a shaft seal body and a sealing ring, wherein a first end of the shaft seal body is provided with an annular mounting groove for mounting the sealing ring, and the sealing ring comprises an annular clamping and embedding part matched with the mounting groove;

2. The internal shaft seal mechanism according to claim 1 wherein the seal ring includes a ring body, the snap-fit portion being of unitary construction with the ring body and extending along an outside of the ring body.

3. The built-in shaft sealing mechanism according to claim 1, wherein a sealing ring extending along a circumferential direction of the inside of the snap-in portion is provided, and a sealing groove for mounting the sealing ring is provided on an outside of the snap-in portion.

4. The internal shaft seal mechanism according to claim 1 wherein the inner retaining ring is made of a metallic or non-metallic rigid acid and alkali resistant material.

5. The built-in shaft seal mechanism according to claim 1, wherein a fixing groove for mounting the inner fixing ring is provided on an inner side wall of the hollow passage, the fixing groove extends from the hollow passage to an end surface of the first end of the shaft seal body, the inner fixing ring is located in the fixing groove, an outer wall surface of the inner fixing ring is tightly attached to an inner wall of the fixing groove, and an end portion of the inner fixing ring does not exceed the end surface of the first end of the shaft seal body.

6. The built-in shaft seal mechanism according to claim 1, wherein the first end of the shaft seal body is provided with at least one positioning block, the positioning block is integrally formed with the shaft seal body and extends outwards along the first end of the shaft seal body, and the sealing ring is provided with a positioning groove corresponding to the positioning block.

7. The internal shaft seal arrangement according to claim 1, wherein the shaft seal body has a telescoping section in a middle portion thereof.

8. The in-line shaft seal arrangement according to claim 7, wherein a retraction spring is disposed within the retraction portion of the shaft seal body, the retraction spring being located inside the hollow passage.

9. A self-cooling pump comprising an in-line shaft seal arrangement as claimed in any one of claims 1 to 8.