CN211975879U - Single-end-face mechanical seal for pump - Google Patents
Single-end-face mechanical seal for pump Download PDFInfo
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- CN211975879U CN211975879U CN202020533667.9U CN202020533667U CN211975879U CN 211975879 U CN211975879 U CN 211975879U CN 202020533667 U CN202020533667 U CN 202020533667U CN 211975879 U CN211975879 U CN 211975879U
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Abstract
A single-end-face mechanical seal for a pump comprises a transmission seat. A spring is embedded in the inner diameter wall of the transmission seat, a push ring is clamped on the inner diameter wall of the transmission seat, and the inner side surface of the push ring is abutted against the right side end of the spring; a movable ring seat is sleeved on the right side of the push ring, a movable ring is embedded in the inner diameter wall of the right side of the movable ring seat, and a static ring assembly matched with the movable ring for use is arranged on the right side of the movable ring; the friction end face of the movable ring is provided with a plurality of integrally arc-shaped intermediate grooves, and friction pairs made of hard alloy are embedded in the intermediate grooves. The utility model provides a single-end face mechanical seal is used to pump is through the friction pair of establishing carbide constitution at the embedded groove in the middle of, makes the wearing and tearing of rotating ring reduce, because sealed friction pair is in non-comprehensive contact state, does not have direct solid friction wearing and tearing between the terminal surface, makes life extension, and in addition, the end face friction energy consumption of rotating ring and quiet ring reduces, thereby improves the operating efficiency, still practices thrift the electric energy.
Description
Technical Field
The utility model relates to a mechanical seal field especially involves a pump is with single-end face mechanical seal.
Background
The mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft extends through the inside and outside of the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks out, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device must be provided to prevent leakage. The shaft seal has many kinds, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so the mechanical seal is the most important shaft sealing mode in the devices in the world. The mechanical seal, also called end face seal, is a device for preventing fluid leakage, which is composed of 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. At present, the mechanical seal for the pump is generally a full-contact mechanical seal, which causes the abrasion of a moving ring and a static ring to be serious, and reduces the service life of the mechanical seal.
The present invention is an improvement to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single-end face mechanical seal for pump to solve above-mentioned defect.
The utility model discloses a solve the technical scheme that its technical problem adopted and be:
a single-end-face mechanical seal for a pump comprises a transmission seat.
A spring is embedded in the inner diameter wall of the transmission seat, a push ring is clamped on the inner diameter wall of the transmission seat, and the inner side surface of the push ring is abutted against the right side end of the spring; a movable ring seat is sleeved on the right side of the push ring, a movable ring is embedded in the inner diameter wall of the right side of the movable ring seat, and a static ring assembly matched with the movable ring for use is arranged on the right side of the movable ring; the friction end face of the movable ring is provided with a plurality of integrally arc-shaped intermediate grooves, and friction pairs made of hard alloy are embedded in the intermediate grooves.
Furthermore, a flange ring extending inwards is arranged on the left inner diameter wall of the transmission seat, and the left end of the spring abuts against the right end face of the flange ring; the left side end face of the push ring is provided with a limiting piece extending to the left, and the limiting piece is used for limiting the spring.
Further, the right side outer wall of transmission seat has four and is the rectangle array and to the sunken manger plate groove of inboard, four first arc walls have been seted up on the outer wall of push ring, first arc wall suits in the manger plate groove, the manger plate groove is used for installing the push ring and plays limiting displacement to the push ring.
Furthermore, a first step surface is formed on the right side of the push ring, a second step surface is formed on the left side of the movable ring seat, and the first step surface and the second step surface are clamped; four second arc-shaped grooves are formed in the outer wall of the movable ring seat, and the second arc-shaped grooves are attached to the inner sides of the retaining grooves.
Furthermore, the static ring assembly comprises a static ring sleeved on a shaft which cannot rotate, and the left side surface of the static ring is a friction surface; the outer sleeve of the static ring is provided with a static ring seat, the static ring and the static ring seat are provided with corresponding positioning grooves, and positioning pins are embedded in the positioning grooves.
Furthermore, a threaded hole is formed in the transmission seat, the threaded hole penetrates through the flange ring, and an inner hexagonal flat end fastening screw is screwed in the threaded hole.
Furthermore, an O-shaped ring is arranged between the first step surface and the second step surface, and an O-shaped ring is arranged between the static ring and the static ring seat.
The utility model has the advantages that:
the utility model provides a single-end face mechanical seal is used to pump is through the friction pair of establishing carbide constitution at the embedded groove in the middle of, makes the wearing and tearing of rotating ring reduce, because sealed friction pair is in non-comprehensive contact state, does not have direct solid friction wearing and tearing between the terminal surface, makes life extension, and in addition, the end face friction energy consumption of rotating ring and quiet ring reduces, thereby improves the operating efficiency, still practices thrift the electric energy.
Drawings
Fig. 1 is a cross-sectional view of a single-ended mechanical seal for a pump according to the present invention;
FIG. 2 is a front view of the friction face of the rotating ring of the mechanical seal;
FIG. 3 is a right side view of the installation of the driving seat and the push ring in the mechanical seal;
fig. 4 is a right side view of the rotating ring mount.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 4, the single-ended mechanical seal for a pump according to the present invention includes a transmission seat 1; a spring 2 is embedded in the inner diameter wall of the transmission seat 1, a push ring 3 is clamped on the inner diameter wall of the transmission seat 1, and the inner side surface of the push ring 3 is abutted against the right side end of the spring 2; a movable ring seat 4 is sleeved on the right side of the push ring 3, a movable ring 5 is embedded in the right inner diameter wall of the movable ring seat 4, and a stationary ring assembly matched with the movable ring 5 is arranged on the right side of the movable ring 5; the friction end face of the movable ring 5 is provided with a plurality of integrally arc-shaped intermediate grooves 51, and friction pairs made of hard alloy are embedded in the intermediate grooves 51.
By adopting the technical scheme, the friction pair formed by the hard alloy is embedded in the middle groove, so that the abrasion of the movable ring is reduced, and the service life of the mechanical seal is prolonged.
The utility model discloses a further set up to: a flange ring 11 extending inwards is arranged on the left inner diameter wall of the transmission seat 1, and the left end of the spring 2 abuts against the right end face of the flange ring 11; the left end face of the push ring 3 is provided with a limiting sheet 31 extending to the left, and the limiting sheet 31 is used for limiting the spring 2.
Through adopting above-mentioned technical scheme, through the setting of spring for the contact between the friction surface of rotating ring and quiet ring is inseparabler.
The utility model discloses a further set up to: the right side outer wall of transmission seat 1 has four and is the rectangle array and to the sunken manger plate 12 of inboard, four first arc walls 32 have been seted up on the outer wall of push ring 3, first arc wall 32 suits in manger plate 12, manger plate 12 is used for installing push ring 3 and plays limiting displacement to push ring 3.
Through adopting above-mentioned technical scheme, through the cooperation of first arc wall and retaining groove for enter into the inboard of retaining groove in the throw-out collar, will throw-out collar again and rotate, make the retaining groove carry on spacingly to the throw-out collar.
The utility model discloses a further set up to: a first step surface is formed on the right side of the push ring 3, a second step surface is formed on the left side of the movable ring seat 4, and the first step surface and the second step surface are clamped; four second arc-shaped grooves 41 are formed in the outer wall of the movable ring seat 4, and the second arc-shaped grooves 41 are attached to the inner side of the retaining groove 12.
By adopting the technical scheme, the movable ring seat is convenient to mount through the clamping of the first step surface and the second step surface; through the block of second arc wall and fender groove for the installation of rotating ring seat is convenient for, and makes the transmission seat can drive the rotating ring seat and rotate.
The utility model discloses a further set up to: the static ring assembly comprises a static ring 6 which is sleeved on a shaft which cannot rotate, and the left side surface of the static ring 6 is a friction surface; the outer sleeve of the static ring 6 is provided with a static ring seat 7, the static ring 6 and the static ring seat 7 are provided with corresponding positioning grooves, and positioning pins 8 are embedded in the positioning grooves.
Through adopting above-mentioned technical scheme, fix the position of quiet ring seat and quiet ring through the locating pin.
The utility model discloses a further set up to: the transmission seat 1 is provided with a threaded hole which penetrates through the flange ring, and an inner hexagonal flat end set screw 9 is screwed in the threaded hole.
Through adopting above-mentioned technical scheme, fix sealed epaxial to the transmission seat through hexagon socket flat end holding screw for the transmission seat can follow the axle and rotate.
The utility model discloses a further set up to: an O-shaped ring 10 is arranged between the first step surface and the second step surface, and the O-shaped ring 10 is arranged between the static ring 6 and the static ring seat 7. Through adopting above-mentioned technical scheme, form sealed through O type circle between to each part.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to let the technical personnel in the field understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (7)
1. The utility model provides a single-ended mechanical seal for pump, includes transmission (1), its characterized in that:
a spring (2) is embedded in the inner diameter wall of the transmission seat (1), a push ring (3) is clamped on the inner diameter wall of the transmission seat (1), and the inner side surface of the push ring (3) is abutted against the right side end of the spring (2); a movable ring seat (4) is sleeved on the right side of the push ring (3), a movable ring (5) is embedded in the right inner diameter wall of the movable ring seat (4), and a static ring assembly matched with the movable ring (5) for use is arranged on the right side of the movable ring (5); the friction end face of the movable ring (5) is provided with a plurality of integrally arc-shaped intermediate grooves (51), and friction pairs made of hard alloy are embedded in the intermediate grooves (51).
2. A single-ended mechanical seal for a pump according to claim 1, wherein: a flange ring (11) extending inwards is arranged on the left inner diameter wall of the transmission seat (1), and the left end of the spring (2) abuts against the right end face of the flange ring (11); the left side end face of the push ring (3) is provided with a limiting piece (31) extending towards the left, and the limiting piece (31) is used for limiting the spring (2).
3. A single-ended mechanical seal for a pump according to claim 1, wherein: the right side outer wall of transmission seat (1) has four and is the rectangle array and to inside sunken fender groove (12), four first arc wall (32) have been seted up on the outer wall of push ring (3), first arc wall (32) suit in fender groove (12), keep off groove (12) and be used for installing push ring (3) and play limiting displacement to push ring (3).
4. A single-ended mechanical seal for a pump according to claim 1, wherein: a first step surface is formed on the right side of the push ring (3), a second step surface is formed on the left side of the movable ring seat (4), and the first step surface and the second step surface are clamped; four second arc-shaped grooves (41) are formed in the outer wall of the movable ring seat (4), and the second arc-shaped grooves (41) are attached to the inner side of the retaining groove (12).
5. A single-ended mechanical seal for a pump according to claim 4, wherein: the static ring assembly comprises a static ring (6) sleeved on a shaft which cannot rotate, and the left side surface of the static ring (6) is a friction surface; the outer sleeve of the static ring (6) is provided with a static ring seat (7), the static ring (6) and the static ring seat (7) are provided with corresponding positioning grooves, and positioning pins (8) are embedded in the positioning grooves.
6. A single-ended mechanical seal for a pump according to claim 2, wherein: the transmission seat (1) is provided with a threaded hole, the threaded hole penetrates through the flange ring, and an inner hexagonal flat end fastening screw (9) is screwed in the threaded hole.
7. A single-ended mechanical seal for a pump according to claim 5, wherein: an O-shaped ring (10) is arranged between the first step surface and the second step surface, and the O-shaped ring (10) is arranged between the static ring (6) and the static ring seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020533667.9U CN211975879U (en) | 2020-04-13 | 2020-04-13 | Single-end-face mechanical seal for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020533667.9U CN211975879U (en) | 2020-04-13 | 2020-04-13 | Single-end-face mechanical seal for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975879U true CN211975879U (en) | 2020-11-20 |
Family
ID=73385346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020533667.9U Active CN211975879U (en) | 2020-04-13 | 2020-04-13 | Single-end-face mechanical seal for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975879U (en) |
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2020
- 2020-04-13 CN CN202020533667.9U patent/CN211975879U/en active Active
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