CN213270432U - Sealing structure of mine centrifugal pump - Google Patents
Sealing structure of mine centrifugal pump Download PDFInfo
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- CN213270432U CN213270432U CN201921982773.9U CN201921982773U CN213270432U CN 213270432 U CN213270432 U CN 213270432U CN 201921982773 U CN201921982773 U CN 201921982773U CN 213270432 U CN213270432 U CN 213270432U
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- seal
- outer shell
- main shaft
- fixedly connected
- centrifugal pump
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Abstract
The utility model relates to a seal structure of a mine centrifugal pump, which comprises an outer shell, wherein two sides of the outer shell are respectively provided with a washing liquid inlet and a washing liquid outlet, one side of the washing liquid inlet and the washing liquid outlet is provided with a base, the base is fixedly connected on the outer shell, the inner part of the outer shell is provided with a main shaft, the right side of the main shaft is fixedly connected with an impeller, the outer side of the main shaft is sleeved with a seal ring, the inner side of the outer shell is provided with a telescopic spring, the front side of the main shaft is sleeved with a main seal, the outer side of the main seal is sleeved with a labyrinth seal, the labyrinth seal is arranged at the outer side of the outer shell, the outer side of the main shaft is provided with a spring, the spring is arranged at the washing liquid inlet and the washing liquid outlet, and meanwhile, the auxiliary seal is arranged, so that the slurry is prevented from being blocked on the main seal, and the dry grinding damage of the main seal is avoided.
Description
Technical Field
The utility model relates to a seal structure of mine centrifugal pump belongs to mine centrifugal pump technical field.
Background
In the exploitation in mine, contain the mud of a lot of impurity, the water pump that the water pump worked under this kind of medium often produces the thick liquid and deposits, and ordinary mechanical seal can be stifled die, leads to the unable normal work of water pump, and mechanical seal life is short moreover, needs frequent change, so needs a neotype sealing method.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seal structure of mine centrifugal pump through adopting labyrinth seal, has increased and has kept off the material ring, lets the main seal operate in no mud liquid, lets the cooling water lubricate the main seal, is equipped with vice sealed simultaneously, prevents that mud from blocking up and dies on the main seal, avoids the main seal to grind the damage futilely to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a sealing structure of a mine centrifugal pump comprises an outer shell, wherein a flushing fluid inlet and a flushing fluid outlet are respectively arranged on two sides of the outer shell, one side of the flushing liquid inlet and one side of the flushing liquid outlet are provided with a machine base which is fixedly connected on the outer shell, a main shaft is arranged in the outer shell, an impeller is fixedly connected to the right side of the main shaft, a sealing ring is sleeved on the outer side of the main shaft, the inner side of the outer shell is provided with a telescopic spring, the front side of the main shaft is sleeved with a main seal, the outer side of the main seal is sleeved with a labyrinth seal, the labyrinth seal is arranged on the outer side of the outer shell, the outer side of the main shaft is provided with springs which are arranged at a flushing liquid inlet and a flushing liquid outlet, the right side of spring is equipped with vice sealed, vice sealed and expanding spring fixed connection, the right-hand member fixedly connected with positioning pressure plate of shell body.
Furthermore, a fixing hole is formed in the base, and anti-corrosion paint is coated on the outer side of the base.
Furthermore, a sealing baffle is arranged at the right end of the outer shell, and the impeller is arranged at the sealing baffle.
Furthermore, the positioning pressing plate is fixedly connected to the outer shell through bolts, and one end of the telescopic spring is fixedly connected to the positioning pressing plate.
Further, the main shaft comprises a rotor and a stator, the rotor is fixedly connected with the impeller, and the stator is arranged on the outer side of the rotor and fixedly connected with the outer shell.
Furthermore, a flow guide groove communicated with the labyrinth seal is formed in the labyrinth seal, and a sealing gasket is arranged on the inner side of the labyrinth seal.
The utility model has the advantages that: the utility model relates to a seal structure of mine centrifugal pump, through adopting labyrinth seal, increased and kept off the material ring, let the main seal operate in no mud liquid, let the cooling water lubricate the main seal, be equipped with vice seal simultaneously, prevent that mud from blocking up to die on the main seal, avoid the main seal dry grinding damage, when the water pump circular telegram, the rotor rotates around the stator, make the centrifugal pump operation through the impeller, take mud out, the shell body is whole sealed, can prevent liquid leakage, convenient and practical.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is an overall structural schematic diagram of a sealing structure of a centrifugal pump for a mine according to the present invention;
fig. 2 is a schematic structural view of a main shaft of the sealing structure of the centrifugal pump for mines of the present invention;
FIG. 3 is a schematic view of a labyrinth seal structure of the centrifugal pump for mines according to the present invention;
reference numbers in the figures: 1. an outer housing; 2. a flushing fluid inlet; 3. a rinse liquid outlet; 4. a machine base; 5. a main shaft; 6. an impeller; 7. a seal ring; 8. a tension spring; 9. primary sealing; 10. labyrinth sealing; 11. a spring; 12. secondary sealing; 13. positioning a pressing plate; 14. sealing the baffle; 15. A rotor; 16. a stator; 17. a diversion trench; 18. and a gasket.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1:
referring to fig. 1-3, the present invention provides a technical solution:
a sealing structure of a mine centrifugal pump comprises an outer shell 1, wherein a washing liquid inlet 2 and a washing liquid outlet 3 are respectively arranged on two sides of the outer shell 1, a connecting flange is arranged on the washing liquid inlet 2 and the washing liquid outlet 3 and is connected with a washing liquid pipe, a base 4 is arranged on one side of the washing liquid inlet 2 and one side of the washing liquid outlet 3 and is used for fixing the centrifugal pump, the base 4 is fixedly connected onto the outer shell 1, a main shaft 5 is arranged inside the outer shell 1, an impeller 6 is fixedly connected to the right side of the main shaft 5, a sealing ring 7 is sleeved on the outer side of the main shaft 5 to fix a rotor 15, a telescopic spring 8 is arranged on the inner side of the outer shell 1, a main seal 9 is sleeved on the front side of the main shaft 5, a labyrinth seal 10 is sleeved on the outer side of the main seal 9, a material retaining ring is added, the main seal 9, be equipped with vice seal 12 simultaneously, prevent that mud from blocking up and die on main seal 9, avoid main seal 9 dry grinding damage, improve the life of water pump, labyrinth seal 10 establishes in the outside of shell body 1, the outside of main shaft 5 is equipped with spring 11, spring 11 is established at flush fluid import 2 and flush fluid export 3, spring 11's right side is equipped with vice seal 12, vice seal 12 and 8 fixed connection of expanding spring can withstand vice seal 12, prevent that liquid from spilling, seal up the water pump wholly, the right-hand member fixedly connected with positioning pressure plate 13 of shell body 1.
More specifically, the fixed orifices has been seted up on the frame 4, the outside coating of frame 4 has anticorrosive paint, prevents that frame 4 from corroding, the right-hand member of shell body 1 is equipped with seal baffle 14, impeller 6 is established in seal baffle 14 department, positioning pressure plate 13 passes through bolt fixed connection on shell body 1, telescopic spring 8's one end fixed connection is on positioning pressure plate 13, and is spacing to telescopic spring 8, main shaft 5 includes rotor 15 and stator 16, rotor 15 and impeller 6 fixed connection, stator 16 establish in the outside of rotor 15 and with shell body 1 fixed connection, set up communicating guiding gutter 17 on the labyrinth seal 10, labyrinth seal 10's inboard is equipped with sealed 18, produces throttling effect and reaches the purpose of hindering the hourglass by sealing medium when the clearance through guiding gutter 17.
Example 2:
as shown in figure 1, the main seal 9 is rotatably connected in the outer shell 1 through a bearing, the extension spring 8 is fixedly connected with the auxiliary seal 12, the auxiliary seal 12 can be propped against, liquid is prevented from leaking, the whole water pump is sealed, and the water pump is convenient and practical.
The utility model discloses the theory of operation: when using this water pump, when the water pump circular telegram, rotor 15 rotates around stator 16, make the centrifugal pump operation through impeller 6, take mud out, shell body 1 integral seal can prevent the liquid leakage, the water pump is through adopting labyrinth seal 10, the material ring that keeps off has been increased, let main seal 9 move in no mud liquid, let the cooling water lubricate main seal 9, be equipped with vice seal 12 simultaneously, prevent that mud from blocking up and die on main seal 9, avoid main seal 9 dry grinding damage, the life of improvement water pump.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a seal structure of centrifugal pump in mine, includes shell body (1), its characterized in that: the washing fluid outlet and the washing fluid inlet are respectively arranged on two sides of the outer shell (1), the machine base (4) is arranged on one side of the washing fluid inlet (2) and one side of the washing fluid outlet (3), the machine base (4) is fixedly connected onto the outer shell (1), the main shaft (5) is arranged inside the outer shell (1), the impeller (6) is fixedly connected to the right side of the main shaft (5), the sealing ring (7) is sleeved on the outer side of the main shaft (5), the telescopic spring (8) is arranged on the inner side of the outer shell (1), the main seal (9) is sleeved on the front side of the main shaft (5), the labyrinth seal (10) is sleeved on the outer side of the main seal (9), the labyrinth seal (10) is arranged on the outer side of the outer shell (1), the spring (11) is arranged on the outer side of the main shaft (5), and the spring (11) is arranged at the washing fluid inlet, the right side of spring (11) is equipped with vice sealed (12), vice sealed (12) and expanding spring (8) fixed connection, the right-hand member fixedly connected with location clamp plate (13) of shell body (1).
2. The seal structure of the centrifugal pump for mines according to claim 1, characterized in that: the engine base (4) is provided with a fixing hole, and the outer side of the engine base (4) is coated with anti-corrosion paint.
3. The seal structure of the centrifugal pump for mines according to claim 1, characterized in that: the right end of the outer shell (1) is provided with a sealing baffle (14), and the impeller (6) is arranged at the sealing baffle (14).
4. The seal structure of the centrifugal pump for mines according to claim 1, characterized in that: the positioning pressing plate (13) is fixedly connected to the outer shell (1) through bolts, and one end of the telescopic spring (8) is fixedly connected to the positioning pressing plate (13).
5. The seal structure of the centrifugal pump for mines according to claim 1, characterized in that: the main shaft (5) comprises a rotor (15) and a stator (16), the rotor (15) is fixedly connected with the impeller (6), and the stator (16) is arranged on the outer side of the rotor (15) and fixedly connected with the outer shell (1).
6. The seal structure of the centrifugal pump for mines according to claim 1, characterized in that: the labyrinth seal (10) is provided with a communicated flow guide groove (17), and the inner side of the labyrinth seal (10) is provided with a sealing gasket (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982773.9U CN213270432U (en) | 2019-11-18 | 2019-11-18 | Sealing structure of mine centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982773.9U CN213270432U (en) | 2019-11-18 | 2019-11-18 | Sealing structure of mine centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213270432U true CN213270432U (en) | 2021-05-25 |
Family
ID=75934754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921982773.9U Active CN213270432U (en) | 2019-11-18 | 2019-11-18 | Sealing structure of mine centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213270432U (en) |
-
2019
- 2019-11-18 CN CN201921982773.9U patent/CN213270432U/en active Active
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