CN220134614U - Pump shaft sealing piece - Google Patents
Pump shaft sealing piece Download PDFInfo
- Publication number
- CN220134614U CN220134614U CN202321577962.4U CN202321577962U CN220134614U CN 220134614 U CN220134614 U CN 220134614U CN 202321577962 U CN202321577962 U CN 202321577962U CN 220134614 U CN220134614 U CN 220134614U
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- China
- Prior art keywords
- ring
- seat
- spring
- pump shaft
- ring seat
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- 238000007789 sealing Methods 0.000 title abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a pump shaft sealing element, which comprises a movable ring assembly (2) and a static ring assembly (3) which are sleeved on a pump shaft (1), wherein the movable ring assembly (2) comprises a movable ring seat (21) and a friction ring (22) arranged on the movable ring seat (21), the static ring assembly (3) comprises a static ring seat (31) and a static ring (32) arranged on the static ring seat (31), the pump shaft sealing element further comprises an elastic mechanism (4), the elastic mechanism (4) comprises a tower spring (41) for providing elastic compensation for the movable ring, one end of the tower spring (41) is abutted against a spring seat (5), and the other end of the tower spring (41) is abutted against the movable ring seat (21). According to the utility model, the cylindrical spiral spring is changed into the tower spring, and the pressure and the height of the tower spring are lower under the condition of the same pressure, so that the installation height is saved, and more adjustable space is reserved for the pump enterprise.
Description
Technical Field
The utility model relates to the technical field of pump body sealing, in particular to a pump shaft sealing piece.
Background
The mechanical sealing element is also called end face sealing, and refers to a device for preventing liquid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis and kept in fit and relatively slide under the action of a fluid pressure and elastic force compensation mechanism and the cooperation of auxiliary sealing.
The mechanical seal is widely used for sealing various liquids conveyed by the centrifugal pump, but the mechanical seal is excessively long, so that the adjustable space reserved for a pump enterprise is small, and further, the conditions of difficult installation, dislocation of installation and the like are caused, so that the seal is leaked.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the pump shaft sealing piece, by changing the cylindrical spiral spring into the tower spring, the pressure and the height of the tower spring are lower under the condition of the same pressure, so that the installation height is saved, and more adjustable space is reserved for a pump enterprise.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pump shaft sealing member, establishes at epaxial movable ring subassembly of pump, quiet ring subassembly including the cover, the movable ring subassembly includes the friction ring of movable ring seat installation on the movable ring seat, quiet ring subassembly includes quiet ring seat and installs the quiet ring on quiet ring seat, still includes elastic mechanism, elastic mechanism is including the tower spring that is used for providing elasticity compensation to the movable ring, tower spring one end supports tightly with the spring holder, the tower spring other end supports tightly with the movable ring seat.
Through adopting above-mentioned technical scheme, select special tower spring as elastic mechanism, because the characteristic of tower spring self, the pressure and the height of tower spring are lower, have saved the installation height, have reserved more adjustable space for the pump enterprise to when the pump shaft takes place radial movement, the tower spring still can provide stable elasticity compensation concentrated to the center, thereby avoids the uneven circumstances that cause revealing of rotating ring atress.
The utility model is further provided with: the spring seat is composed of a baffle ring and a retainer ring arranged around the baffle ring, the large-diameter end of the tower spring is abutted against the inner corner of the baffle ring and the baffle, and the small-diameter end of the tower spring is abutted against the inner concave corner of the movable ring seat.
Through adopting above-mentioned technical scheme, tower spring both ends support tight corner, and location effect is good, and the drunkenness phenomenon is difficult for appearing, has effectively ensured whole mechanical seal's reliability.
The utility model is further provided with: the elastic mechanism further comprises a first belleville spring for axial elastic force compensation and a second belleville spring for floating compensation, wherein the first belleville spring is arranged between the fixed ring and the fixed ring seat, and the second belleville spring is arranged between the tower spring and the movable ring seat.
By adopting the technical scheme, two belleville springs are added in the elastic mechanism, the first belleville spring is arranged at the stationary ring, and whether the pump shaft moves radially or not, the stationary ring and the movable ring can be firmly attached by the first belleville spring; the second belleville spring is installed in moving ring department, makes the elasticity of tower spring compensation more stable, makes elasticity concentrate more at the center to avoid the moving ring atress uneven.
The utility model is further provided with: the novel pump comprises a pump shaft, and is characterized by further comprising a rubber corrugated pipe, wherein the rubber corrugated pipe is clamped between the movable ring seat and the pump shaft, the front end of the rubber corrugated pipe abuts against the movable ring, and the rear end of the rubber corrugated pipe abuts against the pump shaft.
By adopting the technical scheme, the rubber corrugated pipe has the advantages of short axial dimension, compact overall structure, excellent sealing performance and certain damping capacity.
The utility model is further provided with: the transmission seat is clamped between the movable ring seat and the rubber corrugated pipe, a first lug propped against the movable ring seat is arranged on one side of the transmission seat, and a second lug used for limiting the transmission seat is arranged on the rubber corrugated pipe.
By adopting the technical scheme, the transmission seat is clamped between the movable ring seat and the rubber corrugated pipe, the rubber corrugated pipe is tightly pressed, and the tightness of the rubber corrugated pipe is ensured.
The utility model is further provided with: the movable ring seat is provided with a limiting groove for positioning and mounting
Through adopting above-mentioned technical scheme, spacing recess realizes the location installation of moving ring and moving ring seat, and the installation is high-efficient.
The utility model is further provided with: the movable ring is sleeved on the movable ring seat.
Through adopting above-mentioned technical scheme, the cover is established the push ring on the movable ring seat, has avoided tower spring and the direct touching of second belleville spring to lead to both friction damage, and the push ring can also play the effect of fastening movable ring seat and drive seat, movable ring simultaneously.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;
fig. 2 is a schematic structural diagram of embodiment 2 of the present utility model.
In the figure: 1. a pump shaft; 2. a moving ring assembly; 21. a movable ring seat; 22. a friction ring; 23. a limit groove; 24. a concave corner; 3. a stationary ring assembly; 31. a stationary ring seat; 32. a stationary ring; 4. an elastic mechanism; 41. a tower spring; 42. a first belleville spring; 43. a second belleville spring; 5. a spring seat; 51. a baffle ring; 52. a retainer ring; 53. an inner corner; 6. a rubber bellows; 61. a first bump; 7. a transmission seat; 71. a second bump; 8. push ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "thickness," "inner," "outer," "axial," "radial," "circumferential," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
The embodiment discloses pump shaft sealing member, refer to fig. 1, including cover establish moving ring subassembly 2, quiet ring subassembly 3 on pump shaft 1, moving ring subassembly 2 includes that moving ring seat 21 installs the friction ring 22 on moving ring seat 21, quiet ring subassembly 3 includes quiet ring seat 31 and installs the quiet ring 32 on quiet ring seat 31, still includes elasticity mechanism 4, elasticity mechanism 4 includes the tower spring 41 that is used for providing elasticity compensation for the moving ring, tower spring 41 one end supports with spring holder 5 tightly, tower spring 41 other end supports tightly with moving ring seat 21.
The spring seat 5 is formed by a baffle ring 51 and a retainer ring 52 arranged around the baffle ring 51, the large-diameter end of the tower spring 41 abuts against an inner corner 53 where the baffle ring 51 intersects with the baffle, and the small-diameter end of the tower spring 41 abuts against an inner concave corner 24 on the movable ring seat 21.
The novel pump further comprises a rubber corrugated pipe 6, wherein the rubber corrugated pipe 6 is clamped between the movable ring seat 21 and the pump shaft 1, the front end of the rubber corrugated pipe 6 abuts against the movable ring, and the rear end of the rubber corrugated pipe 6 abuts against the pump shaft 1.
The transmission seat 7 is clamped between the movable ring seat 21 and the rubber corrugated pipe 6, a first lug 61 propped against the movable ring seat 21 is arranged on one side of the transmission seat 7, and a second lug 71 used for limiting the transmission seat 7 is arranged on the rubber corrugated pipe 6.
The movable ring seat 21 is provided with a limiting groove 23 for positioning and mounting.
And the movable ring seat 21 is sleeved with a push ring for isolating the tower spring 41 and the second belleville spring 43.
When the sealing element is installed, the spring seat 5 is installed firstly, namely the baffle ring 51 and the retainer ring 52 are combined, the pump shaft 1 is sleeved with the rubber bellows 6, the transmission seat 7 is placed according to the protruding block of the rubber bellows 6, meanwhile, the movable ring seat 21 and the movable ring are installed through the limit groove 23 and sleeved into the pump shaft 1 together, the movable ring seat 21 is ensured to press the transmission seat 7 and the rubber bellows 6, and finally the tower spring 41 is installed at two corners, so that the movable ring is installed.
The tower spring 41 can be replaced by a proper length according to the requirement, so that the whole length of the sealing element is reduced, and more adjustable space is reserved for other structures; and the length of the rubber bellows 6 can be properly shortened according to actual needs.
The rubber bellows 6 on be equipped with one section buffer zone, when pump shaft 1 takes place the drunkenness in the twinkling of an eye, the bellows is driving drive seat 7 and spring holder 5 and takes place the displacement to the left, owing to buffer zone's existence, the wave form of bellows is not fully resume this moment, the rotating ring still can receive the bellow right power, makes the terminal surface between rotating ring and the quiet ring can also laminate together. Therefore, the movable ring can not be subjected to instant impact force and the mechanical seal can still safely and reliably run because the pump shaft 1 moves rightwards.
Example 2
With the addition of a part of the structure based on the embodiment 1, referring to fig. 2, the elastic mechanism 4 further includes a first belleville spring 42 for axial elastic force compensation and a second belleville spring 43 for floating compensation, wherein the first belleville spring 42 is installed between the stationary ring 32 and the stationary ring seat 31, and the second belleville spring 43 is installed between the tower spring 41 and the movable ring seat 21.
Two belleville springs are added on the basis of the embodiment 1, and whether two belleville springs or one belleville spring can be installed or not can be adjusted automatically according to requirements. The butterfly spring makes the dynamic ring stressed uniformly, so that the working state of the multi-spring mechanical seal is prevented from being easily damped by sundries, and the elasticity of the spring is prevented from being influenced; the axial thrust performance is more stable. The first belleville spring 42 can ensure that the static ring of the movable ring is always tightly attached, the second belleville spring 43 can prevent the tower spring 41 from radial displacement, and when the elastic force compensation is uneven, the uniform elastic force compensation is performed, so that the movable ring is always subjected to the uniform elastic force compensation, and leakage caused by uneven stress is avoided.
In summary, the pump shaft has the capability of resisting the floating of the pump shaft, and the length of the sealing element can be improved by adjusting the structures such as the tower spring, the rubber bellows and the like according to actual needs, so that more adjustable space is reserved for the pump rabbet.
Claims (7)
1. The utility model provides a pump shaft seal, includes moving ring subassembly (2), quiet ring subassembly (3) of cover on pump shaft (1), moving ring subassembly (2) include moving ring seat (21) install friction ring (22) on moving ring seat (21), quiet ring subassembly (3) include quiet ring seat (31) and install quiet ring (32) on quiet ring seat (31), its characterized in that: the elastic mechanism (4) comprises a tower spring (41) for providing elastic compensation for the movable ring, one end of the tower spring (41) is abutted against the spring seat (5), and the other end of the tower spring (41) is abutted against the movable ring seat (21).
2. The pump shaft seal of claim 1, wherein: still including being used for spacing spring holder (5), spring holder (5) include baffle ring (51) and set up retaining ring (52) in baffle ring (51) periphery, the big footpath end of tower spring (41) support tightly in baffle ring (51) and the crossing internal corner department (53) of retaining ring (52), the indent corner department (24) on movable ring seat (21) are supported to the footpath end of tower spring (41).
3. The pump shaft seal of claim 2, wherein: the elastic mechanism (4) further comprises a first belleville spring (42) for axial elastic force compensation and a second belleville spring (43) for floating compensation, wherein the first belleville spring (42) is arranged between the static ring (32) and the static ring seat (31), and the second belleville spring (43) is arranged between the tower spring (41) and the movable ring seat (21).
4. The pump shaft seal of claim 1, wherein: the novel hydraulic pump further comprises a rubber corrugated pipe (6), wherein the rubber corrugated pipe (6) is clamped between the movable ring seat (21) and the pump shaft (1), one end of the rubber corrugated pipe (6) abuts against the friction ring (22), and the other end of the rubber corrugated pipe (6) abuts against the pump shaft (1).
5. The pump shaft seal of claim 4, wherein: still include transmission seat (7), transmission seat (7) clamp is established moving between ring seat (21) and rubber bellows (6), transmission seat (7) one side is equipped with first lug (61) that offsets with moving ring seat (21), be equipped with on rubber bellows (6) and be used for carrying out spacing second lug (71) to transmission seat (7).
6. The pump shaft seal of claim 5, wherein: the movable ring seat (21) is provided with a limiting groove (23) for positioning and mounting.
7. A pump shaft seal as in claim 3, wherein: the device also comprises a push ring for isolating the tower spring (41) and the second belleville spring (43), and the push ring is sleeved on the movable ring seat (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321577962.4U CN220134614U (en) | 2023-06-19 | 2023-06-19 | Pump shaft sealing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321577962.4U CN220134614U (en) | 2023-06-19 | 2023-06-19 | Pump shaft sealing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134614U true CN220134614U (en) | 2023-12-05 |
Family
ID=88961470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321577962.4U Active CN220134614U (en) | 2023-06-19 | 2023-06-19 | Pump shaft sealing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134614U (en) |
-
2023
- 2023-06-19 CN CN202321577962.4U patent/CN220134614U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |