CN210050297U - Sealing device with bearing in middle - Google Patents
Sealing device with bearing in middle Download PDFInfo
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- CN210050297U CN210050297U CN201920582524.4U CN201920582524U CN210050297U CN 210050297 U CN210050297 U CN 210050297U CN 201920582524 U CN201920582524 U CN 201920582524U CN 210050297 U CN210050297 U CN 210050297U
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- sealing
- pumping device
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- spring
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Abstract
The utility model discloses a sealing device of intermediate zone bearing, the sealing liquid entry UNICOM that hinders of flange to wherein in a set of mechanical seal, hinder the sealing liquid from hindering the sealing liquid entry and getting into, lubricate a set of mechanical seal wherein, get into another set of mechanical seal to its lubrication from the bearing clearance, the flange hinder sealing liquid export UNICOM to mechanical seal in, wherein be equipped with pumping device in a set of mechanical seal, a plurality of grooves of pumping device excircle processing, pumping device passes through a holding screw and screws up on the axle sleeve, along with the main shaft rotation, during the main shaft rotation, pumping device will wherein a set of mechanical seal hinder the sealing liquid and beat to external liquid storage pot from hindering the sealing liquid export fast, and the liquid storage pot is equipped with the liquid outlet and connects and hinders the sealing liquid entry, forms a circulation route. The middle of the sealing device is provided with the bearing, so that the traditional method of sealing the upper part or the lower part with the bearing is changed, the suspension length of the main shaft is indirectly reduced, the quantity of serial and swinging of the main shaft is reduced, and the sealing life is prolonged.
Description
Technical Field
The utility model relates to a mechanical seal technical field, concretely relates to sealing device of intermediate zone bearing.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal. The spring loading mechanism and the auxiliary seal are mechanical seals of a metal bellows, which are called metal bellows seals. In light sealing, a rubber corrugated pipe is used as auxiliary sealing, the elasticity of the rubber corrugated pipe is limited, and a spring is generally required to be supplemented to meet the loading elasticity. "mechanical seal" is often referred to by one as "mechanical seal" for short. The mechanical sealing part belongs to one of precise mechanical basic elements with complex structures and is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sealing device with a bearing in the middle is provided.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize:
the sealing device with the bearing in the middle comprises a main shaft and a shaft sleeve on the main shaft, and also comprises a sealing device,
the sealing device comprises a flange, a sealing liquid inlet and a sealing liquid outlet are arranged in the flange;
the pressing plate is divided into a left pressing plate and a right pressing plate, and the left pressing plate and the right pressing plate are respectively connected to two sides of the flange;
two groups of mechanical seals are arranged;
the bearing separates the two groups of mechanical seals to enable the mechanical seals to work independently;
the sealing liquid inlet of the flange is communicated with one of the mechanical seals, the sealing liquid enters from the sealing liquid inlet, one of the mechanical seals is lubricated, the other mechanical seal is lubricated by entering from a bearing gap, the sealing liquid outlet of the flange is communicated with the mechanical seals, a pumping device is arranged in one of the mechanical seals, a plurality of grooves are machined in the excircle of the pumping device, the pumping device is screwed on the shaft sleeve through a fastening screw and rotates along with the main shaft, when the main shaft rotates, the pumping device pumps one of the mechanical seals out from the sealing liquid outlet to an external liquid storage tank, and the liquid storage tank is provided with a liquid outlet connected with the sealing liquid inlet to form a circulation passage.
The utility model discloses a further technique:
preferably, the mechanical seal comprises a spring seat fixed on the shaft sleeve, a spring is arranged on the spring seat and abuts against the moving ring, the moving ring is sleeved on the shaft sleeve, a static ring is further sleeved on the shaft sleeve and connected with the pressing plate, and the spring pressurizes the moving ring and the static ring to enable two end faces to be attached together to form the main seal.
Preferably, the front end of the spring is provided with a push ring, and the push ring is connected with the movable ring.
Preferably, a groove is formed in the spring seat, a groove is also formed in the push ring, one end of the spring abuts against the groove of the spring seat, and the other end of the spring abuts against the groove of the push ring.
Preferably, a pin is arranged between the spring seat and the push ring.
Preferably, the pin and the spring are arranged at intervals around the spring seat.
Preferably, the blocking liquid outlet of the flange is communicated with a pumping device, and a groove on the pumping device corresponds to the communication port.
The utility model has the advantages that:
the middle of the sealing device is provided with the bearing, so that the traditional method of sealing the upper part or the lower part with the bearing is changed, the suspension length of the main shaft is indirectly reduced, the serial quantity and the swing quantity of the main shaft are reduced, and the sealing service life is prolonged;
the pumping device is arranged in the sealing device, so that the circulation effect of the sealing liquid is changed, and the sealing service life is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and 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 view of a seal with a bearing in the middle;
FIG. 2 is an enlarged schematic view of the mechanical seal at A in FIG. 1;
FIG. 3 is a schematic front view of a pumping device;
wherein the reference numbers in the figures: 1. a main shaft; 2. a spring seat; 3. a spring; 4. a push ring; 5. a moving ring; 6. a pin; 7. a stationary ring; 10. a shaft sleeve; 11. a flange; 111. blocking the liquid inlet; 112. blocking the liquid outlet; 12. pressing a plate; 13. mechanical sealing; 14. a bearing; 15. a pumping device; 151. a groove; 152. tightening the screw; 16. a liquid storage tank; 17. a main machine housing.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.
The embodiment provides a sealing device with a bearing in the middle, as shown in fig. 1, comprising a main shaft 1 and a shaft sleeve 10 on the main shaft 1, the sealing device further comprises,
a flange 11, in which a blocking liquid inlet 111 and a blocking liquid outlet 112 are arranged, and which is connected to the main machine housing 17;
the pressing plate 12 is divided into a left pressing plate and a right pressing plate which are respectively connected to two sides of the flange;
two groups of mechanical seals 13 are arranged on the mechanical seals 13;
a bearing 14 separating the two sets of mechanical seals for independent operation;
the sealing liquid inlet of the flange 11 is communicated with one of the mechanical seals, the sealing liquid enters from the sealing liquid inlet to lubricate one of the mechanical seals, enters the other mechanical seal from a bearing gap to lubricate the other mechanical seal, the sealing liquid outlet of the flange is communicated with the mechanical seals, a pumping device 15 is arranged in one of the mechanical seals, as shown in fig. 3, a groove 151 is formed in the excircle of the pumping device, the pumping device 15 is screwed on the shaft sleeve through a part fastening screw 152 and rotates along with the main shaft 1, when the main shaft 1 rotates, the pumping device 15 rapidly pumps the mechanical sealing liquid out from the sealing liquid outlet to an external liquid storage tank 16, and the liquid storage tank 16 is provided with a liquid outlet connected with the sealing liquid inlet to form a circulation path.
And a blocking liquid outlet of the flange is communicated to a pumping device, and a groove on the pumping device corresponds to the communication port.
The bearing 14 separates the two groups of mechanical seals 13 to enable the mechanical seals to work independently, sealing liquid enters from a sealing liquid inlet to lubricate one group of mechanical seals, enters the other group of mechanical seals from a bearing gap to lubricate the mechanical seals, one group of mechanical seals are damaged when the main engine works, and the other group of mechanical seals can still work continuously.
The bearing 14 is positioned in the middle of the sealing device 13, is close to the host interface, plays a role of a fulcrum, and indirectly shortens the suspension length of the main shaft 1, so that the swinging amount and the string amount of the main shaft 1 are reduced, and the service life of the sealing device is prolonged;
a pumping device 15 is arranged at the position of the mechanical seal 13, a groove 151 is machined in the outer circle of the pumping device 15 according to the fluid mechanics principle, and the pumping device is screwed on the shaft sleeve through a set screw 152 and rotates along with the main shaft 1.
When the main shaft 1 rotates, the sealing blocking liquid is rapidly pumped out to the external liquid storage tank from the blocking liquid outlet by the pumping device, pressure drop is formed inside and outside the blocking liquid due to the pumping effect produced by the pumping device, the blocking liquid in the liquid storage tank rapidly enters the sealing cavity through the blocking liquid inlet, the circulation speed of the blocking liquid is accelerated, the cooling effect is improved, sealing is protected, and the service life of the sealing device is prolonged.
As shown in fig. 2, the mechanical seal 13 includes a spring seat 2 fixed on a shaft sleeve 10, a spring 3 is arranged on the spring seat 2 and abuts against a moving ring 5, the moving ring 5 is sleeved on the shaft sleeve 10, a stationary ring 6 is further sleeved on the shaft sleeve 10, the stationary ring 6 is connected with a pressure plate 12, and the spring 3 pressurizes the moving ring 5 and the stationary ring 6 to enable two end faces to be attached together to form a main seal.
The front end of the spring 3 is provided with a push ring 4, and the push ring 4 is connected with a movable ring 5.
The spring seat 2 is internally provided with a groove, the push ring is also internally provided with a groove, one end of the spring 3 is propped against the groove of the spring seat, and the other end of the spring is propped against the groove of the push ring.
And a pin 6 is arranged between the spring seat 2 and the push ring 4.
The pin 6 and the spring 3 are arranged at intervals around the spring seat 2.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The sealing device with the bearing in the middle comprises a main shaft and a shaft sleeve on the main shaft, and is characterized in that: the sealing device also comprises a sealing device which is provided with a sealing ring,
the sealing device comprises a flange, a sealing liquid inlet and a sealing liquid outlet are arranged in the flange;
the pressing plate is divided into a left pressing plate and a right pressing plate, and the left pressing plate and the right pressing plate are respectively connected to two sides of the flange;
two groups of mechanical seals are arranged;
the bearing separates the two groups of mechanical seals to enable the mechanical seals to work independently;
the sealing liquid inlet of the flange is communicated with one of the mechanical seals, the sealing liquid enters from the sealing liquid inlet, one of the mechanical seals is lubricated, the other mechanical seal is lubricated by entering from a bearing gap, the sealing liquid outlet of the flange is communicated with the mechanical seals, a pumping device is arranged in one of the mechanical seals, a plurality of grooves are machined in the excircle of the pumping device, the pumping device is screwed on the shaft sleeve through a fastening screw and rotates along with the main shaft, when the main shaft rotates, the pumping device pumps one of the mechanical seals out from the sealing liquid outlet to an external liquid storage tank, and the liquid storage tank is provided with a liquid outlet connected with the sealing liquid inlet to form a circulation passage.
2. The seal assembly with intermediate bearing of claim 1, wherein: the mechanical seal comprises a spring seat fixed on the shaft sleeve, a spring is arranged on the spring seat and abuts against the moving ring, the moving ring is sleeved on the shaft sleeve, the shaft sleeve is further sleeved with a static ring, the static ring is connected with the pressing plate, and the spring pressurizes the moving ring and the static ring to enable two end faces to be attached together to form a main seal.
3. The seal assembly with intermediate bearing according to claim 2, wherein: the front end of the spring is provided with a push ring, and the push ring is connected with the movable ring.
4. The seal assembly with intermediate bearing according to claim 3, wherein: the spring seat is internally provided with a groove, the push ring is internally provided with a groove, one end of the spring is propped against the groove of the spring seat, and the other end of the spring is propped against the groove of the push ring.
5. The seal assembly with intermediate bearing according to claim 4, wherein: and a pin is arranged between the spring seat and the push ring.
6. The seal assembly with intermediate bearing according to claim 5, wherein: the pin and the spring are arranged at intervals around the spring seat in a circle.
7. The seal assembly with intermediate bearing of claim 1, wherein: and a blocking liquid outlet of the flange is communicated to a pumping device, and a groove on the pumping device corresponds to the communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582524.4U CN210050297U (en) | 2019-04-25 | 2019-04-25 | Sealing device with bearing in middle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920582524.4U CN210050297U (en) | 2019-04-25 | 2019-04-25 | Sealing device with bearing in middle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210050297U true CN210050297U (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920582524.4U Active CN210050297U (en) | 2019-04-25 | 2019-04-25 | Sealing device with bearing in middle |
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| CN (1) | CN210050297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396561A (en) * | 2020-04-01 | 2020-07-10 | 安徽亚兰密封件有限公司 | Mechanical sealing device for powder |
-
2019
- 2019-04-25 CN CN201920582524.4U patent/CN210050297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396561A (en) * | 2020-04-01 | 2020-07-10 | 安徽亚兰密封件有限公司 | Mechanical sealing device for powder |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 233200 Dingyuan County Industrial Park, Chuzhou, Anhui Patentee after: Anhui Yalan seal Co.,Ltd. Address before: 233200 Dingyuan County Industrial Park, Chuzhou, Anhui Patentee before: ANHUI ARAM SEALS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |