CN215830786U - Mechanical sealing device for pump - Google Patents
Mechanical sealing device for pump Download PDFInfo
- Publication number
- CN215830786U CN215830786U CN202121031450.9U CN202121031450U CN215830786U CN 215830786 U CN215830786 U CN 215830786U CN 202121031450 U CN202121031450 U CN 202121031450U CN 215830786 U CN215830786 U CN 215830786U
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- ring
- gland
- packing
- pump
- shaft sleeve
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Abstract
The utility model relates to a mechanical sealing device for a pump, which comprises: the sealing device comprises a shaft, a shaft sleeve, a spring seat, a spring, a push ring, a movable ring, a gland, a static ring, a packing and a packing gland, wherein the spring seat is sleeved on the shaft sleeve and is connected with the shaft sleeve through a fixing part, one end of the spring is abutted against the spring seat, the other end of the spring is abutted against the push ring, the movable ring is arranged in the spring seat, the static ring is arranged in the gland, the static ring is connected with the gland through a pin, one side of the movable ring is abutted against the push ring, the other side of the movable ring is abutted against the static ring to form a main sealing surface, the packing is arranged between the gland and the shaft sleeve, the packing gland is connected with the gland through a stud, a packing press plate and a nut, a positioning sleeve sleeved on the stud is arranged between the packing gland and the gland, the positioning sleeve is made of fragile material, and when the main sealing surface leaks, the structure can reduce the leakage amount, thereby prolonging the overhaul period.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of mechanical sealing, in particular to a mechanical sealing device for a pump.
[ background of the utility model ]
The mechanical seal for the pump is a component which is installed and operated in pump equipment and has the starting state sealing function, and prevents fluid media in the volute of the water pump from flowing out of the water pump through the pump shaft. Form the main seal face between rotating ring and the quiet ring, when the pump is at the operation in-process, in case main seal face takes place to leak, the scene is difficult to go to set up large-scale storage device and come to adorn the fluid medium that leaks out, if the maintenance personal can not in time maintain then, the fluid medium that leaks out will be in the scene violently overflow everywhere, therefore we need go to set up such a structure in the mechanical seal device for pump, when main seal face takes place to leak, this structure can make the leakage volume diminish, thereby the extension maintenance period, win the repair time for the maintainer, reduce the harm to the scene simultaneously.
[ Utility model ] content
In order to solve the above problems, an object of the present invention is to provide a mechanical seal device for a pump, which can prolong the maintenance period.
In order to achieve the purpose, the utility model adopts the technical scheme that: a mechanical seal for a pump, comprising: a shaft, a shaft sleeve, a spring seat, a spring, a push ring, a movable ring, a gland, a static ring, a packing and a packing gland, the shaft sleeve is sleeved on the shaft, the spring seat is sleeved on the shaft sleeve and is connected with the shaft sleeve through a fixing piece, the spring is arranged in the spring seat, one end of the spring is abutted against the spring seat, the other end of the spring is abutted against the push ring, the movable ring is arranged in the spring seat, the static ring is arranged in the gland, the static ring is connected with the gland through a pin, one side of the dynamic ring is abutted against the push ring, a main sealing surface is formed between the other side of the dynamic ring and the static ring, the packing is arranged between the gland and the shaft sleeve, the packing gland is connected with the gland through a double-end stud, a packing press plate and a nut, a positioning sleeve sleeved on the stud is arranged between the packing gland and the gland, and the positioning sleeve is made of fragile materials.
Preferably, a mechanical seal device for a pump in the present invention is further configured to: the filler is three graphite packing rings.
Preferably, a mechanical seal device for a pump in the present invention is further configured to: the fixing piece is an inner hexagonal fastening bolt.
Preferably, a mechanical seal device for a pump in the present invention is further configured to: the fragile material is ceramic.
Preferably, a mechanical seal device for a pump in the present invention is further configured to: and a moving ring sealing ring is arranged between the moving ring and the shaft sleeve.
Preferably, a mechanical seal device for a pump in the present invention is further configured to: and a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft.
Preferably, a mechanical seal device for a pump in the present invention is further configured to: and a static ring sealing ring is arranged between the static ring and the gland.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the packing is arranged between the gland and the shaft sleeve, the gland and the gland are connected through the stud, the packing pressing plate and the nut, the positioning sleeve sleeved on the stud is arranged between the gland and the gland, the positioning sleeve is made of fragile materials, and when the main sealing surface between the movable ring and the static ring leaks, the structure can reduce the leakage amount, thereby prolonging the maintenance period, winning the maintenance time for maintenance personnel and reducing the damage to the site.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a mechanical seal device for a pump according to the present invention.
In fig. 1: 1. the shaft comprises a shaft body, 2, a shaft sleeve, 20, a shaft sleeve sealing ring, 3, a spring seat, 30, a fixing part, 4, a spring, 5, a push ring, 6, a movable ring, 60, a movable ring sealing ring, 61, a main sealing surface, 7, a gland, 8, a static ring, 80, a pin, 81, a static ring sealing ring, 9, packing, 10, a packing gland, 11, a double-end stud, 12, a packing pressing plate, 13, a nut, 14 and a positioning sleeve.
[ detailed description ] embodiments
The mechanical seal device for a pump according to the present invention is further described in detail by the following embodiments.
Referring to fig. 1, a mechanical seal device for a pump includes: the shaft comprises a shaft 1, a shaft sleeve 2, a spring seat 3, a spring 4, a push ring 5, a movable ring 6, a gland 7, a static ring 8, a packing 9 and a packing gland 10, wherein the shaft sleeve 2 is sleeved on the shaft 1, and a shaft sleeve sealing ring 20 is arranged between the shaft sleeve 2 and the shaft 1. The spring seat 3 is sleeved on the shaft sleeve 2 and connected with the shaft sleeve 2 through a fixing member 30, and in the embodiment, the fixing member 30 is an inner hexagonal fastening bolt.
The spring 4 is arranged in the spring seat 3, one end of the spring 4 is abutted against the spring seat 3, the other end of the spring 4 is abutted against the push ring 5, the moving ring 6 is arranged in the spring seat 3, a moving ring sealing ring 60 is arranged between the moving ring 6 and the shaft sleeve 2, the static ring 8 is arranged in the gland 7, the static ring 8 is connected with the gland 7 through a pin 80, and a static ring sealing ring 81 is arranged between the static ring 8 and the gland 7. One side of the movable ring 6 is abutted against the push ring 5, and a main sealing surface 61 is formed between the other side of the movable ring 6 and the static ring 8.
The packing 9 is arranged between the gland 7 and the shaft sleeve 2, in the embodiment, the packing 9 is three graphite packing rings, the packing gland 10 is connected with the gland 7 through a stud 11, a packing pressing plate 12 and a nut 13, a positioning sleeve 14 sleeved on the stud 11 is arranged between the packing gland 10 and the gland 7, the positioning sleeve 14 is made of fragile materials, and in the embodiment, the fragile materials are ceramic.
The working principle of the mechanical sealing device for the pump in the utility model is as follows: when the sealing device works, the shaft 1, the shaft sleeve 2, the spring seat 3, the spring 4, the push ring 5 and the moving ring 6 are rotating parts, the stationary ring 8, the gland 7, the packing 9, the packing gland 10, the stud 11, the packing press plate 12, the nut 13 and the positioning sleeve 14 are all stationary parts, a main sealing surface 61 is formed between the moving ring 6 and the stationary ring 8, when the sealing device normally works, the positioning sleeve 14 is used for positioning the packing gland 10, so that the packing 9 is slightly stressed and deformed and is in a pre-compression state, a gap between the packing 9 and the shaft sleeve 2 is large, when the main sealing surface 61 leaks, the nut 13 is screwed with force, the positioning sleeve 14 made of ceramic is broken, after the positioning sleeve 14 is broken, the packing gland 10 moves leftwards, the packing 9 is compressed and deformed, the gap between the packing 9 and the shaft sleeve 2 is reduced, the leakage amount can be reduced, the maintenance period can be prolonged, and the maintenance time can be won for maintenance personnel, while reducing damage to the field.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (7)
1. A mechanical sealing device for a pump is characterized in that: the method comprises the following steps: a shaft, a shaft sleeve, a spring seat, a spring, a push ring, a movable ring, a gland, a static ring, a packing and a packing gland, the shaft sleeve is sleeved on the shaft, the spring seat is sleeved on the shaft sleeve and is connected with the shaft sleeve through a fixing piece, the spring is arranged in the spring seat, one end of the spring is abutted against the spring seat, the other end of the spring is abutted against the push ring, the movable ring is arranged in the spring seat, the static ring is arranged in the gland, the static ring is connected with the gland through a pin, one side of the dynamic ring is abutted against the push ring, a main sealing surface is formed between the other side of the dynamic ring and the static ring, the packing is arranged between the gland and the shaft sleeve, the packing gland is connected with the gland through a double-end stud, a packing press plate and a nut, a positioning sleeve sleeved on the stud is arranged between the packing gland and the gland, and the positioning sleeve is made of fragile materials.
2. A mechanical seal for a pump as claimed in claim 1, wherein: the filler is three graphite packing rings.
3. A mechanical seal for a pump as claimed in claim 1, wherein: the fixing piece is an inner hexagonal fastening bolt.
4. A mechanical seal for a pump as claimed in claim 1, wherein: the fragile material is ceramic.
5. A mechanical seal for a pump as claimed in claim 1, wherein: and a moving ring sealing ring is arranged between the moving ring and the shaft sleeve.
6. A mechanical seal for a pump as claimed in claim 1, wherein: and a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft.
7. A mechanical seal for a pump as claimed in claim 1, wherein: and a static ring sealing ring is arranged between the static ring and the gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031450.9U CN215830786U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031450.9U CN215830786U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215830786U true CN215830786U (en) | 2022-02-15 |
Family
ID=80188637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121031450.9U Active CN215830786U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215830786U (en) |
-
2021
- 2021-05-14 CN CN202121031450.9U patent/CN215830786U/en active Active
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