CN210068942U - Mechanical seal - Google Patents
Mechanical seal Download PDFInfo
- Publication number
- CN210068942U CN210068942U CN201920848886.3U CN201920848886U CN210068942U CN 210068942 U CN210068942 U CN 210068942U CN 201920848886 U CN201920848886 U CN 201920848886U CN 210068942 U CN210068942 U CN 210068942U
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- axle sleeve
- ring
- flange
- mechanical seal
- pivot
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Abstract
The utility model relates to a mechanical seal, including the pivot to and the fixed axle sleeve that sets up in the pivot, the upper and lower both ends of pivot are equipped with respectively to rotate and set up and compress tightly subassembly and flange at the epaxial axle sleeve of pivot, a recess has been seted up on the flange, fixed mounting has a lower quiet ring in the recess, the beneficial effects of the utility model reside in that: the utility model discloses a link up the setting with clearance and play oil pipe, because go up the rotating ring and rotate the setting respectively with lower rotating ring at last quiet ring under with on quiet ring, lubricating oil can flow in the clearance through the friction surface from the axle sleeve in, the clearance link up the setting with play oil pipe moreover, when changing lubricating oil, conveniently goes out oil, through the fixed connection mode that adopts the pin, what adopt is the contact mode between face and the face, has increased area of contact, can play a guard action to quiet ring down.
Description
Technical Field
The utility model belongs to the technical field of mechanical seal, in particular to mechanical seal.
Background
The mechanical seal is an oil seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft penetrates inside and outside the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks to the outside, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device for preventing leakage is necessary. The mechanical seal is a main shaft seal of the above-mentioned devices because the mechanical seal has advantages of a small leakage amount, a long life, and the like. The mechanical seal is a rotating shaft dynamic seal and is divided into a contact type and a non-contact type. At present, most of the contact type mechanical seals are adopted. However, the existing contact type mechanical seal has the following problems in the practical use process: contact mechanical seal during operation, because the rotating ring rotates to set up in quiet ring top and the rotating ring is contradicted with quiet ring and is connected, because lubricating oil has certain life, use for a long time and change lubricating oil, current inconvenient change lubricating oil, all fix on the flange through the threaded screw rod between flange and the quiet ring down moreover, because the screw rod is the face with some (screw) contact with the contact surface of quiet ring down, area of contact is little, leads to quiet ring damage and damage down easily.
Disclosure of Invention
In view of this, the utility model aims at prior art not enough, provide a mechanical seal, this mechanical seal structure is simple, conveniently changes lubricating oil and plays the effect of the quiet ring under the protection.
A mechanical seal, characterized by: including the pivot to and the fixed axle sleeve that sets up in the pivot, the upper and lower both ends of pivot are equipped with respectively and rotate and set up in the epaxial axle sleeve of commentaries on classics and compress tightly subassembly and flange, seted up a recess on the flange, fixed mounting has a quiet ring down in the recess, the below of flange is equipped with the oil receiving cover with flange integrated into one piece, through pin fixed connection between the upper end of oil receiving cover and the quiet ring down, the upper end radius of axle sleeve is greater than the lower extreme radius of axle sleeve, forms a boss, quiet ring sets up with the axle sleeve clearance down, seted up an oil pipe on the flange, the spiral is provided with the end cap on the oil pipe.
The utility model discloses further setting up to: the axle sleeve compresses tightly the subassembly and establishes the axle sleeve gland in the pivot and is located the axle sleeve nut of axle sleeve gland below including fixed cover, axle sleeve nut and pivot fixed connection, be equipped with an axle sleeve "O" type circle between axle sleeve gland and the pivot and between axle sleeve nut and the axle rotation, the lower surface and the axle sleeve conflict of axle sleeve nut are connected, all set up threaded hole on axle sleeve gland and the axle sleeve nut, through the screw rod fixed connection who installs at the screw hole between axle sleeve gland and the axle sleeve nut.
The utility model discloses further setting up to: the bearing comprises a shaft sleeve and is characterized in that a supporting assembly and an upper static ring are movably sleeved on the shaft sleeve from top to bottom, the supporting assembly comprises a sealing box body and a bearing gland positioned on the sealing box body, a mounting groove is formed between the sealing box body, the bearing gland and the shaft sleeve, a bearing is arranged in the mounting groove, framework oil seals are arranged at the upper end and the lower end of the bearing, an elastic retainer ring is arranged between the framework oil seals and the bearing, and the upper static ring is fixedly arranged below the sealing box body.
The utility model discloses further setting up to: go up quiet ring and be equipped with a fixed rotating ring subassembly of establishing on the axle sleeve down between the quiet ring, the rotating ring subassembly includes a spring holder, goes up the rotating ring and lower rotating ring, the mounting groove has been seted up to the lower extreme of spring holder, be provided with the spring in the mounting groove, the one end and the lower rotating ring fixed connection of spring, the other end and spring holder fixed connection, the up end and the last rotating ring fixed connection of spring holder, last rotating ring and lower rotating ring all set up with axle sleeve interference fit, the upper and lower both ends of spring holder are fixed respectively and are equipped with locating plate and lower locating plate, the right flank of going up the rotating ring and the left surface fixed connection of last locating plate, the right flank of lower rotating ring and the left surface fixed connection of lower locating plate.
The utility model discloses further setting up to: and the bearing gland is fixedly connected with the flange through a fixing screw rod.
The utility model discloses further setting up to: an oil inlet is formed in the sealing box body.
The utility model discloses further setting up to: and a cooling assembly is arranged between the sealing box body and the flange.
The utility model discloses further setting up to: the cooling assembly comprises a cooling box fixedly arranged between the sealed box body and the flange, and the left side and the right side of the cooling box are respectively and fixedly provided with a water inlet and a water outlet.
The utility model discloses further setting up to: and a sealing ring is arranged between the upper static ring and the sealing box body.
The beneficial effects of the utility model reside in that: the utility model discloses a link up the setting with clearance and play oil pipe, because go up the rotating ring and rotate the setting respectively with lower rotating ring at last quiet ring under with on quiet ring, lubricating oil can flow in the clearance through the friction surface from the axle sleeve in, the clearance link up the setting with play oil pipe moreover, when changing lubricating oil, conveniently goes out oil, through the fixed connection mode that adopts the pin, what adopt is the contact mode between face and the face, has increased area of contact, can play a guard action to quiet ring down.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
According to fig. 1, the embodiment discloses a mechanical seal, which comprises a rotating shaft 1 and a shaft sleeve 2 fixedly arranged on the rotating shaft 1, wherein the shaft sleeve is arranged on the rotating shaft in an interference fit manner, the upper end and the lower end of the rotating shaft 1 are respectively provided with a shaft sleeve pressing component 3 and a flange 4 which are rotatably arranged on the rotating shaft 1, the flange 4 is provided with a groove 5, a lower stationary ring 6 is fixedly arranged in the groove 5 and fixedly connected with the flange, an oil receiving sleeve 7 which is integrally formed with the flange 4 is arranged below the flange 4, the upper end of the oil receiving sleeve 7 is fixedly connected with the lower stationary ring 6 through a pin 8, the fixed connection mode of the pin is a contact mode between a surface and a surface, so that the contact area is increased, the lower stationary ring can be protected, and the radius of the upper end of the shaft sleeve 2 is larger than the radius of the lower end of the shaft sleeve 2, form a boss 9, quiet ring 6 sets up with 2 clearances 10 of axle sleeve down, an oil pipe 11 has been seted up on the flange 4, and the spiral is provided with end cap 12 on the oil pipe 11, and the clearance sets up with an oil pipe link up, because go up the rotating ring and rotate the setting respectively with lower rotating ring at last quiet ring under with, lubricating oil can flow into the clearance through the friction surface on the axle sleeve in, the clearance sets up with going out oil pipe link up moreover, when changing lubricating oil, conveniently goes out oil.
The utility model discloses further setting up to: the shaft sleeve pressing component 3 comprises a shaft sleeve pressing cover 13 fixedly sleeved on the rotating shaft 1 and a shaft sleeve nut 14 positioned below the shaft sleeve pressing cover 13, the shaft sleeve nut 14 is fixedly connected with the rotating shaft 1, a shaft sleeve O-shaped ring 15 is arranged between the shaft sleeve gland 13 and the rotating shaft 1 and between the shaft sleeve nut 14 and the rotating shaft 1, the shaft sleeve O-shaped ring is arranged to play a role of sealing, the lower surface of the shaft sleeve nut 14 is connected with the shaft sleeve 2 in an abutting mode, threaded holes are formed in the shaft sleeve gland 13 and the shaft sleeve nut 14, the shaft sleeve gland 13 and the shaft sleeve nut 14 are fixedly connected through a screw rod arranged in a threaded hole, when installing the axle sleeve in the pivot, because the lower surface and the axle sleeve conflict of axle sleeve nut are connected, when needing to promote the axle sleeve down, rotatory screw rod promotes the axle sleeve nut, and the axle sleeve nut promotes the axle sleeve and moves down.
The utility model discloses further setting up to: the last down movable sleeve of follow is equipped with supporting component 16 and last quiet ring 17 on axle sleeve 2, supporting component 16 includes a sealed box 18 and is located bearing cover 19 on the sealed box 18, form a mounting groove 20 between sealed box 18, bearing cover 19 and the axle sleeve 2, the internal rotation of mounting groove 20 is equipped with bearing 21, bearing 21's upper and lower both ends are equipped with skeleton oil blanket 22, be equipped with a circlip 23 between skeleton oil blanket 22 and the bearing 21, go up quiet ring 17 and fix the setting in sealed box 18 below, through setting up the skeleton oil blanket, can play a sealed effect.
The utility model discloses further setting up to: a movable ring assembly fixedly sleeved on the shaft sleeve 2 is arranged between the upper stationary ring 17 and the lower stationary ring 6, the movable ring assembly comprises a spring seat 24, an upper movable ring 25 and a lower movable ring 26, the lower end of the spring seat 24 is provided with a mounting groove 27, a spring 28 is arranged in the mounting groove 27, one end of the spring 28 is fixedly connected with the lower movable ring 26, the other end of the spring 28 is fixedly connected with the spring seat 24, the upper end surface of the spring seat 24 is fixedly connected with the upper movable ring 25, the spring seat 24, the upper movable ring 25 and the lower movable ring 26 are arranged in interference fit with the shaft sleeve 2, when the shaft sleeve is driven by a rotating shaft to rotate, the shaft sleeve drives the spring seat, the upper movable ring and the lower movable ring to rotate together, the upper movable ring and the lower movable ring are in interference connection with the upper stationary ring and the lower stationary ring, the upper end and the lower end of the spring seat 24 are respectively fixedly provided with an upper positioning plate 40 and a lower, the right flank of lower rotating ring 26 and the left flank fixed connection of locating plate 41 down, go up the rotating ring and with rotating ring down with last quiet ring with quiet ring down contradict and be connected to go up the rotating ring and rotate respectively with lower rotating ring and set up on last quiet ring and quiet ring down, through setting up locating plate and locating plate down, play a location and supporting role moreover.
The utility model discloses further setting up to: the bearing gland 19 is fixedly connected with the flange 4 through a fixing screw 29, after the supporting component, the upper static ring, the moving ring component, the lower static ring and the flange are arranged on the shaft sleeve, the bearing gland flange is connected through rotating the fixing screw, and a fixing effect is achieved on the supporting component, the upper static ring, the moving ring component and the lower static ring.
The utility model discloses further setting up to: an oil inlet 30 is formed in the sealing box 18, and lubricating liquid can be conveniently added through the oil inlet.
The utility model discloses further setting up to: a cooling component is arranged between the sealed box body 18 and the flange 4 and plays a role in cooling.
The utility model discloses further setting up to: the cooling assembly comprises a cooling box 31 fixedly arranged between the sealed box body 18 and the flange 4, the left side and the right side of the cooling box 31 are respectively and fixedly provided with a water inlet 32 and a water outlet 33, the cooling box is convenient to cool, and liquid can flow conveniently by arranging the water inlet and the water outlet.
The utility model discloses further setting up to: and a sealing ring is arranged between the upper static ring 17 and the sealing box body 18 and plays a role in sealing.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and any decoration, modification or equivalent replacement made by those skilled in the art according to the above description is within the protection scope of the present invention.
Claims (9)
1. A mechanical seal, characterized by: including the pivot to and the fixed axle sleeve that sets up in the pivot, the upper and lower both ends of pivot are equipped with respectively and rotate and set up in the epaxial axle sleeve of commentaries on classics and compress tightly subassembly and flange, seted up a recess on the flange, fixed mounting has a quiet ring down in the recess, the below of flange is equipped with the oil receiving cover with flange integrated into one piece, through pin fixed connection between the upper end of oil receiving cover and the quiet ring down, the upper end radius of axle sleeve is greater than the lower extreme radius of axle sleeve, forms a boss, quiet ring sets up with the axle sleeve clearance down, seted up an oil pipe on the flange, the spiral is provided with the end cap on the oil pipe.
2. A mechanical seal according to claim 1, wherein: the axle sleeve compresses tightly the subassembly and establishes the axle sleeve gland in the pivot and is located the axle sleeve nut of axle sleeve gland below including fixed cover, axle sleeve nut and pivot fixed connection, be equipped with an axle sleeve "O" type circle between axle sleeve gland and the pivot and between axle sleeve nut and the axle rotation, the lower surface and the axle sleeve conflict of axle sleeve nut are connected, all set up threaded hole on axle sleeve gland and the axle sleeve nut, through the screw rod fixed connection who installs at the screw hole between axle sleeve gland and the axle sleeve nut.
3. A mechanical seal according to claim 1, wherein: the bearing comprises a shaft sleeve and is characterized in that a supporting assembly and an upper static ring are movably sleeved on the shaft sleeve from top to bottom, the supporting assembly comprises a sealing box body and a bearing gland positioned on the sealing box body, a mounting groove is formed between the sealing box body, the bearing gland and the shaft sleeve, a bearing is arranged in the mounting groove, framework oil seals are arranged at the upper end and the lower end of the bearing, an elastic retainer ring is arranged between the framework oil seals and the bearing, and the upper static ring is fixedly arranged below the sealing box body.
4. A mechanical seal according to claim 3, wherein: go up quiet ring and be equipped with a fixed rotating ring subassembly of establishing on the axle sleeve down between the quiet ring, the rotating ring subassembly includes a spring holder, goes up the rotating ring and lower rotating ring, the mounting groove has been seted up to the lower extreme of spring holder, be provided with the spring in the mounting groove, the one end and the lower rotating ring fixed connection of spring, the other end and spring holder fixed connection, the up end and the last rotating ring fixed connection of spring holder, last rotating ring and lower rotating ring all set up with axle sleeve interference fit, the upper and lower both ends of spring holder are fixed respectively and are equipped with locating plate and lower locating plate, the right flank of going up the rotating ring and the left surface fixed connection of last locating plate, the right flank of lower rotating ring and the left surface fixed connection of lower locating plate.
5. A mechanical seal according to claim 3, wherein: and the bearing gland is fixedly connected with the flange through a fixing screw rod.
6. A mechanical seal according to claim 3, wherein: an oil inlet is formed in the sealing box body.
7. A mechanical seal according to claim 3, wherein: and a cooling assembly is arranged between the sealing box body and the flange.
8. A mechanical seal according to claim 7, wherein: the cooling assembly comprises a cooling box fixedly arranged between the sealed box body and the flange, and the left side and the right side of the cooling box are respectively and fixedly provided with a water inlet and a water outlet.
9. A mechanical seal according to claim 3, wherein: and a sealing ring is arranged between the upper static ring and the sealing box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848886.3U CN210068942U (en) | 2019-06-06 | 2019-06-06 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848886.3U CN210068942U (en) | 2019-06-06 | 2019-06-06 | Mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068942U true CN210068942U (en) | 2020-02-14 |
Family
ID=69456533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920848886.3U Active CN210068942U (en) | 2019-06-06 | 2019-06-06 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682512A (en) * | 2020-12-01 | 2021-04-20 | 安徽工程大学 | Sealing part of high-rotating-speed high-temperature dryer |
| CN116398636A (en) * | 2023-04-03 | 2023-07-07 | 安徽松羽工程技术设备有限公司 | Self-lubricating low-noise mechanical seal |
-
2019
- 2019-06-06 CN CN201920848886.3U patent/CN210068942U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682512A (en) * | 2020-12-01 | 2021-04-20 | 安徽工程大学 | Sealing part of high-rotating-speed high-temperature dryer |
| CN116398636A (en) * | 2023-04-03 | 2023-07-07 | 安徽松羽工程技术设备有限公司 | Self-lubricating low-noise mechanical seal |
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