CN214063366U - Spring type shaft sealing device for water pump - Google Patents
Spring type shaft sealing device for water pump Download PDFInfo
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- CN214063366U CN214063366U CN202022461882.5U CN202022461882U CN214063366U CN 214063366 U CN214063366 U CN 214063366U CN 202022461882 U CN202022461882 U CN 202022461882U CN 214063366 U CN214063366 U CN 214063366U
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- sleeve
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Abstract
The utility model discloses a spring type is used for shaft seal device of water pump, including suit at the epaxial axle sleeve of water pump main shaft and the end cover of suit on the axle sleeve, still include spring gland and flange, the flange suit is connected on the axle sleeve and with end cover's front end, the spring gland suit is connected on the axle sleeve and with the front end of flange, be formed with an inner chamber between end cover and the axle sleeve, the intracavity is provided with seal assembly, seal assembly includes rotating ring cover seat, the rotating ring, quiet ring support, driving ring cover one and driving ring cover two, the ring channel has all been seted up to the terminal surface that rotating ring and quiet ring are relative, a plurality of communicating screw holes with the ring channel have all been seted up to the side of rotating ring and quiet ring, a plurality of screw holes are the circumference equipartition, threaded hole is provided with the joint subassembly. The disassembly and the assembly of the first sealing sleeve and the second sealing sleeve are simpler and faster, the static ring and the dynamic ring are prevented from being damaged, and the replacement efficiency is improved.
Description
Technical Field
The utility model relates to a sealed technical field specifically is a spring type is used for shaft seal device of water pump.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to a rotation axis, keeping fit and relatively sliding under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.
Shaft seal device passes through the cooperation formation sealing face of rotating ring and quiet ring, realize sealed effect, prior art is for reducing the wearing and tearing of rotating ring and quiet ring, the life of extension rotating ring and quiet ring, all set up the sealed cover in the relative one end of quiet ring and rotating ring usually, form sealed face through two complex sealed covers, thereby reduce the wearing and tearing of quiet ring and rotating ring, when the sealed cover is excessively worn and torn, only need to change sealed cover can, needn't quiet ring and rotating ring change together, the cost is reduced, but prior art sealed cover and rotating ring and quiet ring all are embedded connection, lead the dismantlement of tight closed cover to become difficult, cause the damage of rotating ring and quiet ring easily when dismantling sealed cover simultaneously, thereby the cost is increased, make the change efficiency lower.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a spring type is used for shaft seal device of water pump, the driving fit overlaps the dismantlement and the installation simple more swift of one and driving fit cover two, has avoided causing the damage to quiet ring and rotating ring, has improved change efficiency simultaneously.
The purpose of the utility model is realized through the following technical scheme: a spring type shaft sealing device for a water pump comprises a shaft sleeve sleeved on a main shaft of the water pump and a sealing end cover sleeved on the shaft sleeve, and is characterized by further comprising a spring gland and a flange, wherein the flange is sleeved on the shaft sleeve and connected with the front end of the sealing end cover;
the sealing assembly comprises a movable ring sleeve seat, a movable ring, a static ring support, a first sealing sleeve and a second sealing sleeve, the movable ring sleeve seat is sleeved on the shaft sleeve, the static ring support is connected to the flange in a sliding mode, the movable ring and the static ring are arranged at one end, opposite to the static ring support, of the movable ring sleeve seat respectively, the first sealing sleeve and the second sealing sleeve are detachably arranged at one end, opposite to the movable ring and the static ring, of the movable ring sleeve seat respectively, the first sealing sleeve is abutted against the second sealing sleeve, and two ends of the compensating spring are abutted against the spring gland and the static ring support respectively;
the opposite end surfaces of the movable ring and the static ring are provided with annular grooves, the side surfaces of the movable ring and the static ring are provided with a plurality of threaded holes communicated with the annular grooves, the threaded holes are uniformly distributed in the circumferential direction, and clamping components are arranged in the threaded holes;
the clamping assembly comprises a threaded column, a spring and a wedge-shaped block, the threaded column is in threaded connection with the threaded hole, the wedge-shaped block is slidably arranged in the threaded hole in a penetrating mode, two ends of the spring are respectively connected with the threaded column and the wedge-shaped block, and the wedge-shaped end of the wedge-shaped block extends into the annular groove;
the first sealing sleeve is composed of a clamping section and a sealing section, the outer diameter of the clamping section is larger than that of the sealing section, a clamping part is formed at the joint of the clamping section and the sealing section, the clamping section is arranged in the annular groove in a penetrating mode, and the first sealing sleeve is connected to the rotating ring through clamping of the clamping part and the wedge-shaped block;
the structure of the sealing sleeve II is the same as that of the sealing sleeve I, and the sealing sleeve II is connected to the stationary ring through the clamping of the clamping portion and the wedge-shaped block.
Furthermore, a cross-shaped opening is formed in one end, far away from the wedge-shaped block, of the threaded column.
Furthermore, the clamping section is provided with a taper matched with the inclined surface of the wedge-shaped block.
Furthermore, a first sealing ring groove is formed in the inner wall of the movable ring sleeve seat, and a first sealing ring is arranged in the first sealing ring groove.
Furthermore, a second sealing ring is arranged on the matching surface of the flange and the static ring.
Furthermore, a third sealing ring is arranged on the matching surface of the flange and the sealing end cover.
Furthermore, a cleaning channel communicated with the compensation ring cavity is formed in the flange.
The utility model has the advantages that:
a spring type shaft sealing device for a water pump is characterized in that a sealing sleeve is butted in an annular groove, when a clamping section of a first sealing sleeve is in contact with a wedge surface of a wedge block, the wedge surface has a guiding function, the wedge block is extruded by the clamping section under the action of continuous force, the wedge block moves along the axis of a threaded hole, so that the spring is extruded and compressed, the clamping section passes through a clamping assembly, under the action of the spring, the wedge block is abutted against a clamping part, so that the clamping of the first sealing sleeve and a moving ring is completed, the installation of the first sealing sleeve is simpler and faster, when the first sealing sleeve is disassembled, a tool is used for stretching into a threaded hole, the threaded column is rotated by the tool, the wedge block is driven by the spring to move away from the first sealing sleeve, so that the wedge block is separated from the first sealing sleeve, the clamping function is lost, the disassembly of the first sealing sleeve is completed, and the installation and disassembly modes of a static ring and a second sealing sleeve are consistent, therefore, the first sealing sleeve and the second sealing sleeve can be quickly mounted and dismounted without damaging the static ring and the dynamic ring, and the replacement efficiency is improved.
Drawings
Fig. 1 is a schematic view of an internal structure of a spring type shaft sealing device for a water pump according to the present invention;
FIG. 2 is a schematic view of a spring-type shaft seal device for a water pump according to the present invention, wherein a first seal ring is engaged with a movable ring;
fig. 3 is a schematic structural view of a first sealing sleeve or a second sealing sleeve in the spring type shaft sealing device for the water pump of the present invention;
in the figure, 1-a water pump main shaft, 2-a shaft sleeve, 3-a sealing end cover, 4-a spring gland, 5-a flange, 6-an inner cavity, 7-a compensation ring cavity, 8-a compensation spring, 9-a movable ring sleeve seat, 10-a movable ring, 11-a stationary ring, 12-a stationary ring support, 13-a sealing sleeve I, 14-a sealing sleeve II, 15-an annular groove, 16-a threaded hole, 17-a threaded column, 18-a spring, 19-a wedge block, 20-a clamping section, 21-a sealing section, 22-a clamping part, 23-a sealing ring II, 24-a sealing ring III, 25-a cleaning channel and 26-a sealing ring I.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1 to 3, a spring type shaft sealing device for a water pump comprises a shaft sleeve 2 sleeved on a main shaft 1 of the water pump, a sealing end cover 3 sleeved on the shaft sleeve 2, a spring gland 4 and a flange 5, wherein the flange 5 is sleeved on the shaft sleeve 2 and connected with the front end of the sealing end cover 3, the spring gland 4 is sleeved on the shaft sleeve 2 and connected with the front end of the flange 5, an inner cavity 6 is formed between the sealing end cover 3 and the shaft sleeve 2, a sealing assembly is arranged in the inner cavity 6, a compensation ring cavity 7 is formed between the inner wall of the flange 5 and the outer wall of the shaft sleeve 2, and a compensation spring 8 is arranged in the compensation ring cavity 7;
the sealing assembly comprises a movable ring sleeve seat 9, a movable ring 10, a fixed ring 11, a fixed ring support 12, a first sealing sleeve 13 and a second sealing sleeve 14, the movable ring sleeve seat 9 is sleeved on the shaft sleeve 2, the fixed ring support 12 is connected to the flange 5 in a sliding manner, one end of the movable ring sleeve seat 9, which is opposite to the fixed ring support 12, is provided with the movable ring 10 and the fixed ring 11 respectively, one end of the movable ring 10, which is opposite to the fixed ring 11, is provided with the first sealing sleeve 13 and the second sealing sleeve 14 respectively in a detachable manner, the first sealing sleeve 13 is abutted against the second sealing sleeve 14, and two ends of the compensating spring 8 are abutted against the spring gland 4 and the fixed ring support 12 respectively;
when the water pump main shaft 1 rotates at a high speed, the movable ring 10 is driven to rotate by the movable ring sleeve seat 9, the movable ring 10 drives the first sealing sleeve 14 to rotate, and a sealing surface is formed by matching the first sealing sleeve 13 and the second sealing sleeve 14, so that a sealing effect is realized.
The opposite end surfaces of the movable ring 10 and the static ring 11 are provided with annular grooves 15, the side surfaces of the movable ring 10 and the static ring 11 are provided with a plurality of threaded holes 16 communicated with the annular grooves 15, the threaded holes 16 are uniformly distributed on the circumference, and clamping components are arranged in the threaded holes 16;
as shown in fig. 2 and 3, the clamping assembly includes a threaded column 17, a spring 18 and a wedge block 19, the threaded column 17 is screwed in the threaded hole 16, the wedge block 19 is slidably inserted in the threaded hole 16, two ends of the spring 18 are respectively connected with the threaded column 17 and the wedge block 19, and a wedge end of the wedge block 19 extends into the annular groove 15;
the first sealing sleeve 13 consists of a clamping section 20 and a sealing section 21, the outer diameter of the clamping section 20 is larger than that of the sealing section 21, a clamping part 22 is formed at the joint of the clamping section 20 and the sealing section 21, the clamping section 20 is arranged in the annular groove 15 in a penetrating way, and the first sealing sleeve 13 is connected to the movable ring 10 through the clamping of the clamping part 22 and the wedge-shaped block 19;
the structure of the second sealing sleeve 14 is the same as that of the first sealing sleeve 13, and the second sealing sleeve 14 is connected to the stationary ring 11 through the clamping connection of the clamping part 22 and the wedge-shaped block 19.
The first sealing sleeve 13 is butted in the annular groove 15, when the clamping section 20 of the first sealing sleeve 13 is contacted with the wedge surface of the wedge-shaped block 19, the wedge surface has a guiding function, under the action of continuous applied force, the clamping section 20 extrudes the wedge-shaped block 19, the wedge-shaped block 19 moves along the axis of the threaded hole 16, so that the spring 18 is extruded, the spring 18 is compressed, so that the clamping section 20 passes through the clamping assembly, under the action force of the spring 18, the wedge-shaped block 19 is abutted against the clamping part 22, so that the clamping of the first sealing sleeve 13 and the movable ring 10 is completed, the installation of the first sealing sleeve 13 is simpler and quicker, when in disassembly, a tool is used for stretching into the threaded hole 16, the threaded column 16 is rotated through the tool, the wedge-shaped block 19 is driven by the spring 18 to move away from the first sealing sleeve 13, so that the wedge-shaped block 19 is separated from the first sealing sleeve 13, the clamping function is lost, and the disassembly of the first sealing sleeve 13 is completed, the mounting and dismounting modes of the first sealing sleeve 13 and the second sealing sleeve 14 are consistent, so that the first sealing sleeve 13 and the second sealing sleeve 14 can be mounted and dismounted quickly without damaging the first sealing ring 11 and the movable ring 10, and the replacement efficiency is improved.
After the first sealing sleeve 13 and the second sealing sleeve 14 are disassembled, the threaded column 16 is screwed to the original position again through a tool, in order to realize the positioning of the threaded column 16, a circular ring-shaped positioning block 27 is fixed in the threaded hole 16, the wedge block 19 and the threaded column 16 are respectively arranged at two ends of the circular positioning block 27, one end of the spring 18 penetrates through a central circular hole of the circular ring-shaped positioning block 27 to be connected with the threaded column 16, the other end of the spring is connected with the wedge block 19, so that the positioning of the threaded column 16 is completed, when the threaded column 16 is screwed to the original position, when the threaded column 16 abuts against the circular ring-shaped positioning block 27, the idle threaded column 16 is rotated, and at the moment, the clamping assembly is shown to be restored to the original position, so that the clamping can be normally carried out; in order to ensure the sealing performance between the first sealing sleeve 13 and the movable ring 10, a sealing ring is arranged between the sealing section 21 and the inner wall of the annular groove 15, and in order to ensure the sealing performance between the second sealing sleeve 14 and the fixed ring 11, a sealing ring is arranged between the sealing section 21 and the inner wall of the annular groove 15, so that the sealing performance between the first sealing sleeve 13 and the movable ring 10 and between the second sealing sleeve 14 and the fixed ring 11 is improved.
Further, one end of the threaded column 17, which is far away from the wedge-shaped block 19, is provided with a cross-shaped opening. The threaded stud 17 is conveniently screwed through the cross-shaped opening.
Furthermore, the clamping section 20 is provided with a taper adapted to the slope of the wedge-shaped block 19. The guiding effect is better through the taper arranged on the surface of the clamping section 20, and simultaneously, the stress of the end part of the clamping section 20 and the wedge surface of the wedge-shaped block 19 is reduced.
Further, the inner wall of the movable ring sleeve seat 9 is provided with a first sealing ring groove, and a first sealing ring 26 is arranged in the first sealing ring groove. The sealing effect of the matching surface of the movable ring sleeve seat 9 and the shaft sleeve 2 is improved by the first sealing ring 26.
Furthermore, a second sealing ring 23 is arranged on the matching surface of the flange 5 and the static ring 11. The sealing effect of the matching surface of the static ring 11 and the flange 5 is improved by the second sealing ring 23.
Further, a third sealing ring 24 is arranged on the matching surface of the flange 5 and the sealing end cover 4. The sealing effect of the matching surface of the flange 5 and the end cover 4 is improved by the third sealing ring 24.
Furthermore, a cleaning channel 25 communicated with the compensation ring cavity 7 is arranged on the flange 5. The compensation spring 8 in the compensation ring cavity 7 is cleaned through the cleaning channel 25, and the medium is prevented from being blocked in the compensation ring cavity 7, so that the actual effect of the compensation spring 8 is avoided.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. A spring type shaft sealing device for a water pump comprises a shaft sleeve (2) sleeved on a main shaft (1) of the water pump and a sealing end cover (3) sleeved on the shaft sleeve (2), and is characterized by further comprising a spring gland (4) and a flange (5), wherein the flange (5) is sleeved on the shaft sleeve (2) and is connected with the front end of the sealing end cover (3), the spring gland (4) is sleeved on the shaft sleeve (2) and is connected with the front end of the flange (5), an inner cavity (6) is formed between the sealing end cover (3) and the shaft sleeve (2), a sealing assembly is arranged in the inner cavity (6), a compensating ring cavity (7) is formed between the inner wall of the flange (5) and the outer wall of the shaft sleeve (2), and a compensating spring (8) is arranged in the compensating ring cavity (7);
the sealing assembly comprises a moving ring sleeve seat (9), a moving ring (10), a static ring (11), a static ring support (12), a sealing sleeve I (13) and a sealing sleeve II (14), wherein the moving ring sleeve seat (9) is sleeved on the shaft sleeve (2), the static ring support (12) is connected to the flange (5) in a sliding mode, one end, opposite to the static ring support (12), of the moving ring sleeve seat (9) is provided with the moving ring (10) and the static ring (11) respectively, one end, opposite to the moving ring (10) and the static ring (11), of the moving ring sleeve seat (9) is provided with the sealing sleeve I (13) and the sealing sleeve II (14) respectively in a detachable mode, the sealing sleeve I (13) is abutted to the sealing sleeve II (14), and two ends of the compensation spring (8) are abutted to the spring gland (4) and the static ring support (12) respectively;
the end faces, opposite to each other, of the movable ring (10) and the static ring (11) are provided with annular grooves (15), the side faces of the movable ring (10) and the static ring (11) are provided with a plurality of threaded holes (16) communicated with the annular grooves (15), the threaded holes (16) are uniformly distributed in the circumferential direction, and clamping components are arranged in the threaded holes (16);
the clamping assembly comprises a threaded column (17), a spring (18) and a wedge block (19), the threaded column (17) is in threaded connection with the threaded hole (16), the wedge block (19) is slidably arranged in the threaded hole (16) in a penetrating mode, two ends of the spring (18) are respectively connected with the threaded column (17) and the wedge block (19), and the wedge end of the wedge block (19) extends into the annular groove (15);
the first sealing sleeve (13) is composed of a clamping section (20) and a sealing section (21), the outer diameter of the clamping section (20) is larger than that of the sealing section (21), a clamping portion (22) is formed at the joint of the clamping section (20) and the sealing section (21), the clamping section (20) penetrates through the annular groove (15), and the first sealing sleeve (13) is connected to the movable ring (10) through clamping of the clamping portion (22) and the wedge-shaped block (19);
the structure of the second sealing sleeve (14) is the same as that of the first sealing sleeve (13), and the second sealing sleeve (14) is connected to the stationary ring (11) through the clamping of the clamping portion (22) and the wedge-shaped block (19).
2. A spring type shaft seal device for a water pump according to claim 1, characterized in that the end of the threaded post (17) remote from the wedge block (19) is provided with a cross.
3. A spring-type shaft seal for a water pump according to claim 2, characterized in that the snap-in section (20) is provided with a taper adapted to the slope of the wedge-shaped block (19).
4. The spring type shaft sealing device for the water pump as claimed in claim 1, wherein the inner wall of the rotating ring sleeve seat (9) is provided with a first sealing ring groove, and a first sealing ring (26) is arranged in the first sealing ring groove.
5. A spring type shaft sealing device for a water pump according to claim 1, wherein a second sealing ring (23) is provided on a mating surface of the flange (5) and the stationary ring (11).
6. A spring type shaft sealing device for a water pump according to claim 1, characterized in that a sealing ring three (24) is provided on the mating surface of the flange (5) and the sealing end cover (3).
7. A spring type shaft seal device for a water pump according to claim 1, characterized in that the flange (5) is provided with a cleaning channel (25) communicating with the compensating ring chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022461882.5U CN214063366U (en) | 2020-10-29 | 2020-10-29 | Spring type shaft sealing device for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022461882.5U CN214063366U (en) | 2020-10-29 | 2020-10-29 | Spring type shaft sealing device for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214063366U true CN214063366U (en) | 2021-08-27 |
Family
ID=77398863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022461882.5U Active CN214063366U (en) | 2020-10-29 | 2020-10-29 | Spring type shaft sealing device for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214063366U (en) |
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2020
- 2020-10-29 CN CN202022461882.5U patent/CN214063366U/en active Active
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