CN221257658U - Double-end mechanical seal spare - Google Patents
Double-end mechanical seal spare Download PDFInfo
- Publication number
- CN221257658U CN221257658U CN202322979522.8U CN202322979522U CN221257658U CN 221257658 U CN221257658 U CN 221257658U CN 202322979522 U CN202322979522 U CN 202322979522U CN 221257658 U CN221257658 U CN 221257658U
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- Prior art keywords
- ring
- wall
- spring
- spring seat
- double
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 238000010030 laminating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to the technical field of mechanical sealing elements, in particular to a double-end mechanical sealing element which comprises a spring seat inserted on an engine body, a quick-release mechanism and a buffer mechanism, wherein the quick-release mechanism comprises a limiting component and four inserted rods, the outer wall of the spring seat is integrally formed and provided with a flange, the four inserted rods are arranged on the outer wall of the engine body at equal intervals, the buffer mechanism is arranged on the spring seat and comprises a buffer spring and two sliding components, the two sliding components are symmetrically arranged at two ends of the spring seat, the buffer spring is arranged between the two sliding components, a rotating shaft is inserted between the two sliding components, and the buffer spring is sleeved with the outer wall of the rotating shaft.
Description
Technical Field
The utility model relates to the technical field of mechanical sealing elements, in particular to a double-head mechanical sealing element.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end surfaces perpendicular to the rotation axis, and the pair of end surfaces keep fit and relatively slide under the action of fluid pressure and the elasticity (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.
The existing mechanical seal has the following defects:
1. Most of the existing machine seals are fixedly connected with the outer wall of the machine body through flanges or a plurality of bolts, and when the machine seals are required to be disassembled, the bolts are required to be disassembled and assembled, so that the disassembly and assembly efficiency is low, and the maintenance is inconvenient.
2. At present, most of the seals are inconvenient to buffer the distance between the rotating shaft and the machine body, so that friction between the rotating shaft and the machine seal is caused, and then the sealing ring is shifted, and the sealing effect of the machine seal is affected.
3. When the directions of vibration forces received by the rotating shafts are different, the single-head mechanical seal does not meet the requirement of multidirectional buffering.
Disclosure of utility model
The utility model aims to provide a double-head mechanical seal.
To achieve the purpose, the utility model adopts the following technical scheme:
A double-ended mechanical seal is provided, comprising a spring seat inserted on a machine body;
the device also comprises a quick-dismantling mechanism and a buffer mechanism;
The quick-release mechanism comprises a limiting assembly and four inserted bars, the outer wall of the spring seat is integrally formed and provided with a flange, the four inserted bars are arranged on the outer wall of the machine body at equal intervals, the outer wall of the flange is provided with insertion holes for the four inserted bars to be inserted, and the locking assembly is arranged on one of the inserted bars;
The buffer mechanism is arranged on the spring seat and comprises a buffer spring and two sliding components, the two sliding components are symmetrically arranged at two ends of the spring seat, the buffer spring is arranged between the two sliding components, a rotating shaft is inserted between the two sliding components, and the buffer spring is sleeved with the outer wall of the rotating shaft.
Preferably, the limiting component comprises a lock tongue, an anti-falling block and a handle, wherein the top end of one of the inserting rods is provided with a slot, the lock tongue is inserted into the slot, the anti-falling block is fixedly arranged on the outer wall of one end of the lock tongue, the handle is fixedly arranged on the outer wall of the anti-falling block, and the bottom of the lock tongue is attached to the top of the flange.
Preferably, the outer wall of the machine body is provided with a mounting hole for inserting the spring seat, the outer wall of the spring seat is fixedly provided with a first sealing ring, and the outer ring of the first sealing ring is attached to the inner wall of the mounting hole.
Preferably, each sliding assembly comprises a movable ring, a stationary ring, a push ring and sealing gaskets, wherein the stationary ring is fixedly arranged at one end of the rotary shaft through four bolts, the movable ring is inserted into one end of the spring seat, the push ring is fixedly arranged at the bottom end of the movable ring, the sealing gaskets are attached to the bottom of the push ring, and the two sealing gaskets are respectively abutted against two ends of the buffer spring.
Preferably, a second sealing ring is sleeved at one end of each stationary ring far away from the movable ring.
Preferably, a reserved groove for sliding the two push rings is formed in the spring seat.
The utility model has the beneficial effects that:
1. According to the quick-dismantling mechanism, namely the limiting assembly and the four inserted bars, the mechanical sealing piece and the machine body can be quickly dismantled and overhauled and reinstalled when the machine seal fails, and the spring seat and the machine body can be unlocked only by pulling out the lock tongue from the top end slot of one inserted bar without detaching each bolt one by one, so that the disassembly and assembly efficiency of the machine seal is improved, and the maintenance efficiency is further improved.
2. According to the utility model, by designing the sliding component, the vibration force between the rotating shaft and the machine body can be effectively weakened, the distance between the rotating shaft and the machine body is further buffered, the friction force between the rotating shaft and the mechanical sealing piece is reduced, the sealing gasket is prevented from shifting, and the service life of the elevator seal is further prolonged.
3. According to the utility model, the buffer spring and the two sliding assemblies are designed, when vibration is generated between the rotating shaft and the machine body, no matter which end of the rotating shaft vibrates in the direction of the machine body, the static ring and the movable ring can be forced to drive the push ring to slide towards the inside of the spring seat, the multidirectional vibration force generated between the rotating shaft and the machine body can be buffered, the bidirectional buffer effect is achieved, and the flexibility and the practicability of the mechanical seal are further improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following description briefly describes the drawings in the embodiments of the present invention.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a plan cross-sectional view taken along line A-A in FIG. 2;
FIG. 4 is a cut-away view of a flange and one of the plungers of the present utility model;
FIG. 5 is an enlarged view at B in FIG. 4;
In the figure: the spring seat 2, the limiting assembly 3, the inserting rod 4, the flange 5, the buffer spring 6, the sliding assembly 7, the rotating shaft 8, the lock tongue 9, the anti-falling block 10, the handle 11, the first sealing ring 12, the moving ring 13, the static ring 14, the push ring 15, the sealing gasket 16, the second sealing ring 17 and the reserved groove 18.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced in size and do not represent the actual product dimensions.
Referring to fig. 1 to 5, a double-ended mechanical seal comprises a spring seat 2 inserted in a body 1;
the device also comprises a quick-dismantling mechanism and a buffer mechanism;
The quick-release mechanism is arranged between the spring seat 2 and the machine body 1 and comprises a limiting component 3 and four inserted bars 4, a flange 5 is integrally formed on the outer wall of the spring seat 2, the four inserted bars 4 are arranged on the outer wall of the machine body 1 at equal intervals, insertion holes for inserting the four inserted bars 4 are formed in the outer wall of the flange 5, and the locking component is arranged on one of the inserted bars 4;
The buffer mechanism is arranged on the spring seat 2 and comprises a buffer spring 6 and two sliding components 7, the two sliding components 7 are symmetrically arranged at two ends of the spring seat 2, the buffer spring 6 is arranged between the two sliding components 7, a rotating shaft 8 is inserted between the two sliding components 7, and the buffer spring 6 is sleeved with the outer wall of the rotating shaft 8.
Referring to fig. 1 to 5, the limiting component 3 includes a lock tongue 9, an anti-drop block 10 and a handle 11, wherein the top of one of the insert rods 4 is provided with a slot, the lock tongue 9 is inserted in the slot, the anti-drop block 10 is fixedly arranged on the outer wall of one end of the lock tongue 9, the handle 11 is fixedly arranged on the outer wall of the anti-drop block 10, the bottom of the lock tongue 9 is attached to the top of the flange 5, after the spring seat 2 is initially limited, the lock tongue 9 is inserted into the slot at the top of one of the insert rods 4 through the handle 11 and the anti-drop block 10, and the bottom of the lock tongue 9 is attached to the top of the flange 5, so that the lock of the insert rod 4 is realized through the interference force of the lock tongue 9 and the flange 5, and the lock of the other three insert rods 4 is further realized, so that shaking is prevented.
Referring to fig. 1 to 5, there is a mounting hole for inserting the spring seat 2 on the outer wall of the body 1, a first sealing ring 12 is fixedly arranged on the outer wall of the spring seat 2, the outer ring of the first sealing ring 12 is attached to the inner wall of the mounting hole, the existing mechanical seal is generally fixedly connected with the outer wall of the body 1 through a flange or a plurality of screws, so that the dismounting and mounting efficiency is low when the mechanical seal is dismounted, when the mechanical seal is required to be mounted on the body 1, the mechanical seal is firstly inserted into the mounting hole of the body 1 through the spring seat 2, and the four insertion holes on the flange 5 are sleeved on the outer walls of the four insertion rods 4, so that the flange 5 is limited, the preliminary limit of the spring seat 2 is realized, the first sealing ring 12 is used for plugging gaps between the mounting hole and the spring seat 2, the sealing effect is improved, and the mounting compactness is improved.
Referring to fig. 1 to 5, each sliding assembly 7 includes a moving ring 13, a stationary ring 14, a push ring 15 and a sealing pad 16, the stationary ring 14 is fixedly arranged at one end of the rotating shaft 8 through four bolts, the moving ring 13 is inserted at one end of the spring seat 2, the push ring 15 is fixedly arranged at the bottom end of the moving ring 13, the sealing pad 16 is attached to the bottom of the push ring 15, the two sealing pads 16 are respectively abutted against two ends of the buffer spring 6, when vibration is generated between the rotating shaft 8 and the machine body 1, no matter which end of the rotating shaft 8 vibrates in the direction of the machine body 1, the stationary ring 14 can drive the stationary ring 14 and the moving ring 13 to move towards one end close to the spring seat 2 through four bolts, and as the bottom end of the stationary ring 14 is tightly attached to the bottom end of the moving ring 13, the moving ring 13 drives the push ring 15 to slide towards one end close to the sealing pad 16, and then the buffer spring 6 is pressed by the sealing pad 16, so that the buffer spring 6 is converted into a contracted state from an initial state, vibration force between the rotating shaft 8 and the machine body 1 is effectively weakened, and the distance between the rotating shaft 8 and the machine body 1 is buffered, the mechanical friction force between the rotating shaft 8 and the machine is reduced, the friction between the rotating shaft 8 and the sealing pad is further prevented, and the sealing pad is used.
Referring to fig. 1 to 5, a second sealing ring 17 is sleeved at one end of each stationary ring 14 far away from the movable ring 13, the inner diameter of the second sealing ring 17 is consistent with the outer diameter of the top end of the stationary ring 14, and the stationary ring 14 is connected with the second sealing ring 17 to avoid left and right shaking of the top ends of the second sealing ring 17 and the stationary ring 14, so that the sealing effect of the mechanical sealing member is improved.
Referring to fig. 1 to 5, a reserve groove 18 is provided in the spring seat 2 for sliding the two push rings 15, and the reserve groove 18 provides a space for avoiding when the push rings 15 slide in the spring seat 2.
Claims (6)
1. A double-ended mechanical seal comprising a spring seat (2) inserted on a machine body (1), characterized in that:
the device also comprises a quick-dismantling mechanism and a buffer mechanism;
The quick-release mechanism is arranged between the spring seat (2) and the machine body (1), and comprises a limiting assembly (3) and four inserting rods (4), wherein the outer wall of the spring seat (2) is integrally formed with a flange (5), the four inserting rods (4) are arranged on the outer wall of the machine body (1) at equal intervals, the outer wall of the flange (5) is provided with inserting holes for inserting the four inserting rods (4), and the locking assembly is arranged on one of the inserting rods (4);
The buffer mechanism is arranged on the spring seat (2), the buffer mechanism comprises a buffer spring (6) and two sliding components (7), the two sliding components (7) are symmetrically arranged at two ends of the spring seat (2), the buffer spring (6) is arranged between the two sliding components (7), a rotating shaft (8) is inserted between the two sliding components (7), and the buffer spring (6) is sleeved with the outer wall of the rotating shaft (8).
2. A double-ended mechanical seal as defined in claim 1, wherein: limiting component (3) are equipped with the slot including spring bolt (9), anticreep piece (10) and handle (11) in the top of one of them inserted bar (4), and spring bolt (9) are inserted and are established in the inside of slot, and anticreep piece (10) are fixed to be established on the one end outer wall of spring bolt (9), and handle (11) are fixed to be established on the outer wall of anticreep piece (10), and the bottom of spring bolt (9) is laminated with the top of flange (5).
3. A double-ended mechanical seal as defined in claim 2, wherein: the outer wall of the machine body (1) is provided with a mounting hole for inserting the spring seat (2), the outer wall of the spring seat (2) is fixedly provided with a first sealing ring (12), and the outer ring of the first sealing ring (12) is attached to the inner wall of the mounting hole.
4. A double-ended mechanical seal according to claim 3, wherein: every slip subassembly (7) all includes moving ring (13), quiet ring (14), push ring (15) and sealed pad (16), and quiet ring (14) are established in the one end of rotation axis (8) through four bolt fastening, and moving ring (13) are inserted and are established in the one end of spring holder (2), and push ring (15) are fixed to be established in the bottom of moving ring (13), and sealed pad (16) laminating is established in the bottom of push ring (15), and two sealed pads (16) are contradicted with the both ends of buffer spring (6) respectively.
5. A double-ended mechanical seal as defined in claim 4 wherein: and a second sealing ring (17) is sleeved at one end of each stationary ring (14) far away from the movable ring (13).
6. A double-ended mechanical seal as defined in claim 5 wherein: the inside of the spring seat (2) is provided with a reserved groove (18) for the two push rings (15) to slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322979522.8U CN221257658U (en) | 2023-11-03 | 2023-11-03 | Double-end mechanical seal spare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322979522.8U CN221257658U (en) | 2023-11-03 | 2023-11-03 | Double-end mechanical seal spare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221257658U true CN221257658U (en) | 2024-07-02 |
Family
ID=91663808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322979522.8U Active CN221257658U (en) | 2023-11-03 | 2023-11-03 | Double-end mechanical seal spare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221257658U (en) |
-
2023
- 2023-11-03 CN CN202322979522.8U patent/CN221257658U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |