CN213744116U - Quick detachable pump body seal ring structure - Google Patents
Quick detachable pump body seal ring structure Download PDFInfo
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- CN213744116U CN213744116U CN202022541279.8U CN202022541279U CN213744116U CN 213744116 U CN213744116 U CN 213744116U CN 202022541279 U CN202022541279 U CN 202022541279U CN 213744116 U CN213744116 U CN 213744116U
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- pump body
- seal ring
- mounting thread
- sealing ring
- wall surface
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Abstract
The utility model discloses a seal ring structure of an easily detachable pump body, which is arranged between a pump body and an impeller opening ring and is characterized in that the outer wall surface of the seal ring is provided with an outer mounting thread, and one end of the seal ring is evenly provided with three detaching holes; an inner mounting thread is arranged on the inner wall surface of the pump body; the outer mounting thread is matched with the inner mounting thread, and the outer mounting thread of the sealing ring is in threaded connection with the inner mounting thread of the pump body; a gap is formed between the inner wall surface of the sealing ring and the outer wall surface of the impeller opening ring. The utility model discloses a quick detachable pump body seal ring structure, simple structure, easy dismounting, the suitability is strong.
Description
Technical Field
The utility model relates to a quick detachable pump body sealing ring structure especially relates to easily take place wearing and tearing, changes inconvenient pump body sealing ring.
Background
In centrifugal pumps, the pump assembly operates by working the medium through an impeller rotating at high speed, which carries the medium out of the pump. Referring to fig. 1 and 2, in order to prevent the medium delivered by the pump set from leaking back to the inlet of the pump set through the gap between the impeller 2 ' and the pump body 1 ' after the impeller is worked, and causing energy waste, a sealing ring 3 ' is additionally arranged between the pump body 1 ' and the impeller 2 '. The leakage of the pump set is controlled by controlling the gap B between the sealing ring 3' and the impeller eye. The sealing ring can also prevent the direct friction between the pump body 1 'and the impeller 2' from causing the damage of the pump body 1 'or the impeller 2', and the maintenance cost is increased.
In general, after the sealing ring 3 ' is processed, the sealing ring is installed in transition fit with the pump body 1 ' and is fixed through the seam-riding screws 4 ', and the contact surface C between the sealing ring 3 ' and the pump body 1 ' is a smooth surface. Normally, the number of the caulking screws 4' is three, the clearance B between the seal ring and the impeller eye is 0.2mm to 0.3mm, and the hardness of the seal ring is 50HB less than that of the impeller.
The impeller is a high-speed rotating part, and the sealing ring is a quick-wear part. After long-time work, the sealing ring is worn, the gap B between the sealing ring and the impeller opening ring is enlarged, the leakage amount is increased, and the sealing ring needs to be detached and replaced.
Because the sealing ring is in tight fit with the pump body, the sealing ring has smaller size and is inconvenient to disassemble. And frequent disassembly easily causes severe abrasion of the joint surface of the sealing ring and the pump body, which is not beneficial to the installation and replacement of a new sealing ring.
Therefore, in order to overcome the defects, a sealing ring structure which is more universal and easy to disassemble must be invented, so that the pump set sealing ring can be replaced more conveniently and quickly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing a quick detachable pump body seal ring structure, cancelled traditional perforation screw and fastened, simple structure, easy dismounting, the suitability is strong.
The technical scheme for realizing the purpose is as follows: a seal ring structure of an easily-detachable pump body is characterized in that the seal ring is installed between a pump body and an impeller opening ring, an outer installation thread is arranged on the outer wall surface of the seal ring, and three detaching holes are uniformly distributed at one end of the seal ring;
an inner mounting thread is arranged on the inner wall surface of the pump body;
the outer mounting thread is matched with the inner mounting thread, and the outer mounting thread of the sealing ring is in threaded connection with the inner mounting thread of the pump body;
a gap is formed between the inner wall surface of the sealing ring and the outer wall surface of the impeller opening ring.
The seal ring structure for the pump body easy to disassemble is characterized in that the screwing direction of the threads connected by the external mounting threads of the seal ring and the internal mounting threads of the pump body is opposite to the screwing direction of the rotor of the pump body, so that the seal ring tends to be screwed in the working process of the pump group.
The sealing ring structure for the pump body easy to disassemble is characterized in that a tool withdrawal groove is formed in the inner wall surface of the pump body and is located below the inner mounting thread.
The utility model discloses a quick detachable pump body seal ring constructs has cancelled traditional seam screw and has fastened, simple structure, easy dismounting, and the suitability is strong.
Drawings
FIG. 1 is a schematic view of a conventional pump body, impeller and seal ring installation;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a top view of the seal ring structure of the easily detachable pump body of the present invention;
FIG. 4 is a sectional view taken along line B-B of FIG. 3
FIG. 5 is a schematic view of the installation of the pump body, impeller and seal ring in the embodiment;
fig. 6 is a schematic structural view of an internal mounting thread of the pump body in the embodiment.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 3, 4, 5 and 6, in a preferred embodiment of the present invention, a seal ring structure of a readily detachable pump body is provided, in which a seal ring 3 is installed between a pump body 1 and an impeller eye 2, an outer wall surface of the seal ring 3 is provided with an outer mounting thread 31, and three detaching holes 32 are uniformly distributed at one end of the seal ring 3; an inner mounting thread 11 and a tool withdrawal groove 12 are arranged on the inner wall surface of the pump body 1, and the tool withdrawal groove 12 is positioned below the inner mounting thread 11; the outer mounting thread 31 is matched with the inner mounting thread 11, the outer mounting thread 31 of the sealing ring 3 is in threaded connection with the inner mounting thread 11 of the pump body 1, and the thread turning direction of the threaded connection of the outer mounting thread 31 of the sealing ring 3 and the inner mounting thread 11 of the pump body 1 is opposite to the rotor turning direction of the pump body 1, so that the sealing ring 3 tends to be screwed in the working process of the pump set; there is clearance B between the internal wall face of sealing ring 3 and the outer wall face of impeller choma 2, because, sealing ring 3 tends to the screw-down state in pump package working process, can effectively prevent clearance B grow.
The utility model discloses a quick detachable pump body sealing ring structure is equipped with three disassembly hole 32, convenient to use three-jaw chuck at the tip of sealing ring 3. After the pump unit works for a long time, when the sealing ring 3 is worn and replaced, the three-jaw chuck is clamped into the three dismounting holes 32 of the sealing ring 3, and the sealing ring 3 can be easily taken out.
To sum up, the utility model discloses a quick detachable pump body seal ring constructs has cancelled traditional seam screw and has fastened, simple structure, easy dismounting, and the suitability is strong.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (3)
1. A kind of easy-to-dismount pump body seal ring structure, the said seal ring is installed between pump body and impeller oral ring, characterized by that, there are outer mounting screw threads on the outer wall of the said seal ring, one end of the said seal ring is distributed with three dismounting holes;
an inner mounting thread is arranged on the inner wall surface of the pump body;
the outer mounting thread is matched with the inner mounting thread, and the outer mounting thread of the sealing ring is in threaded connection with the inner mounting thread of the pump body;
a gap is formed between the inner wall surface of the sealing ring and the outer wall surface of the impeller opening ring.
2. The seal ring structure of claim 1, wherein the thread direction of the connection between the external mounting thread of the seal ring and the internal mounting thread of the pump body is opposite to the rotor direction of the pump body.
3. The seal ring structure for a detachable pump body according to claim 1, wherein a relief groove is formed on an inner wall surface of the pump body, and the relief groove is located below the internal mounting thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022541279.8U CN213744116U (en) | 2020-11-05 | 2020-11-05 | Quick detachable pump body seal ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022541279.8U CN213744116U (en) | 2020-11-05 | 2020-11-05 | Quick detachable pump body seal ring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744116U true CN213744116U (en) | 2021-07-20 |
Family
ID=76821052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022541279.8U Active CN213744116U (en) | 2020-11-05 | 2020-11-05 | Quick detachable pump body seal ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744116U (en) |
-
2020
- 2020-11-05 CN CN202022541279.8U patent/CN213744116U/en active Active
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