CN216407252U - Circulating water pump shaft sleeve sealing device - Google Patents
Circulating water pump shaft sleeve sealing device Download PDFInfo
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- CN216407252U CN216407252U CN202122044305.0U CN202122044305U CN216407252U CN 216407252 U CN216407252 U CN 216407252U CN 202122044305 U CN202122044305 U CN 202122044305U CN 216407252 U CN216407252 U CN 216407252U
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- shaft sleeve
- sealing
- groove
- water pump
- circulating water
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Abstract
The utility model discloses a circulating water pump shaft sleeve sealing device which comprises a shaft sleeve and a connecting groove formed in the inner wall of the shaft sleeve, wherein the right side wall of the shaft sleeve is provided with a sealing groove; according to the shaft sleeve sealing device, the rubber ring is tightly connected with the annular groove through the working fit among the first sealing gasket, the metal gasket and the second sealing gasket, so that the sealing surfaces are tightly attached, and the first sealing gasket and the second sealing gasket are prevented from shifting through the arrangement of the metal gasket; through the arrangement of the sealing groove and the annular groove, the rubber ring with the adaptive configuration can be tightly attached to the sealing surface of the impeller under the tightening force of the back cap, the effects of tight sealing and prolonging the service life of the impeller are achieved, the metal gasket is further tightly connected with the sealing groove through the arrangement of the fixing mechanism, and the situation that when part of the shaft sleeve is used, the sealing performance of the shaft sleeve is poor, the medium enters the joint of the shaft sleeve, the rotating shaft and the shaft head easily, and more serious corrosion is caused is avoided.
Description
Technical Field
The utility model relates to the technical field of circulating water pump shaft sleeve sealing, in particular to a circulating water pump shaft sleeve sealing device.
Background
At present, according to long-term observation and analysis after disassembly, the contact surface of the end part of the shaft sleeve and the impeller is a plane structure with the width of about 30mm, the joint surface is sealed by a 0.50mm highland barley paper pad, the pad is aged after a period of operation, the sealing effect is lost, water leaks into a cavity between the shaft sleeve and the shaft from the damaged pad, the fixed key of the shaft sleeve is corroded, the shaft sleeve, the impeller and the end back cap are caused to run and wear relatively after the fixed key is corroded, the sealing is completely failed, water flow directly leaks out of the packing chamber along the inside of the shaft sleeve, a large amount of water leakage is caused at the packing gland, finally, the water inlet phenomenon of a bearing box is caused, the abrasion of the bearing is aggravated by the lubricating oil quality, and the safe operation of the circulating water pump is threatened.
The circulating water pump that uses in the steam power plant often leads to the water pump pivot to be connected the axle sleeve of usefulness with the leaf spindle nose to be corroded because of carrying the medium, the life that leads to the axle sleeve reduces and needs often to be changed, if the axle sleeve corrodes serious back and in time not change, often can cause more serious production accident, and partial axle sleeve is when using, its leakproofness is relatively poor, lead to axle sleeve and pivot and spindle nose junction entering medium easily, cause more serious corruption, for this reason, a circulating water pump shaft sleeve sealing device has been proposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a circulating water pump shaft sleeve sealing device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a circulating water pump shaft sleeve sealing device comprises a shaft sleeve and a connecting groove formed in the inner wall of the shaft sleeve, wherein a sealing groove is formed in the right side wall of the shaft sleeve;
the utility model discloses a sealing structure, including seal groove, draw-in groove, first sealed pad, metal gasket and buckle, the draw-in groove has been seted up on the inside wall of seal groove, the inside sliding connection of seal groove has first sealed pad, first sealed pad is keeping away from the one end fixedly connected with metal gasket of seal groove, metal gasket is keeping away from the sealed pad of one end fixedly connected with second of first sealed pad, fixedly connected with buckle on metal gasket's the lateral wall, fixedly connected with fixed establishment on the buckle.
Preferably, the fixing mechanism comprises a loop bar, a sliding bar, a resisting plate and a spring; the loop bar is fixedly connected to the side wall of the buckle, the sliding rod is connected to the inner wall of the loop bar in a sliding mode, the abutting plate is fixedly connected to the side wall of one end, far away from the loop bar, of the sliding rod, and the spring is sleeved on the side walls of the loop bar and the sliding rod.
Preferably, the sealing groove is provided with an annular groove, and the size of the annular groove is 5mm in diameter and 4mm in depth.
Preferably, the bottom end of the first sealing gasket is fixedly connected with a rubber ring, and the size of the rubber ring is consistent with that of the annular groove.
Preferably, the number of the clamping grooves is two, and the two clamping grooves are perpendicular and parallel to each other.
Preferably, the number of the buckles is two, the two buckles are arranged vertically and parallelly, and the size of the buckles is smaller than that of the clamping grooves.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the circulating water pump shaft sleeve sealing device, the rubber ring connected with the bottom of the first sealing gasket is tightly connected with the annular groove in the sealing groove through the working fit among the first sealing gasket, the metal gasket and the second sealing gasket, so that the sealing surfaces are tightly attached, the first sealing gasket and the second sealing gasket are tightly clamped in the connecting groove through the arrangement of the metal gasket, and the first sealing gasket and the second sealing gasket are prevented from shifting;
2. according to the circulating water pump shaft sleeve sealing device provided by the utility model, the rubber ring with the adaptive configuration can be tightly attached to the sealing surface of the impeller under the tightening force of the back cap through the arrangement of the sealing groove and the annular groove, so that the effects of tight sealing and prolonging the service life of the circulating water pump shaft sleeve are achieved; through the arrangement of the connecting grooves, the shaft sleeve and the shaft are hermetically connected, so that the relative operation and abrasion among the shaft sleeve, the impeller and the end back cover are avoided, and the sealing is completely failed;
3. according to the circulating water pump shaft sleeve sealing device, the spring is pressed against the abutting plate in the clamping groove through the fixing mechanism, the metal gasket is further tightly connected with the sealing groove, and the phenomenon that a medium enters the joint of the shaft sleeve, the rotating shaft and the shaft head to cause more serious corrosion due to poor sealing performance of part of the shaft sleeve when the shaft sleeve is used is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a shaft sleeve sealing device of a circulating water pump in the prior art;
fig. 2 is a schematic structural diagram of a circulating water pump shaft sleeve sealing device according to the present invention;
fig. 3 is a schematic structural diagram of a circulating water pump shaft sleeve sealing device according to the present invention;
fig. 4 is a schematic structural diagram of a circulating water pump shaft sleeve sealing device according to the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure: 1. a shaft sleeve; 2. connecting grooves; 3. a sealing groove; 4. a card slot; 5. a first gasket; 6. a metal gasket; 7. a second gasket; 8. buckling; 9. a loop bar; 10. a slide bar; 11. a resisting plate; 12. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a circulating water pump shaft sleeve sealing device comprises a shaft sleeve 1 and a connecting groove 2 arranged on the inner wall of the shaft sleeve 1, wherein a sealing groove 3 is arranged on the right side wall of the shaft sleeve 1;
referring to fig. 1, fig. 1 shows a shaft sleeve sealing device of a circulating water pump of the prior art, which comprises a shaft sleeve 1 and a connecting groove 2 formed in the inner wall of the shaft sleeve 1.
It should be noted that, in the existing technology of the shaft sleeve sealing device of the circulating water pump, the shaft sleeve 1 and the shaft are hermetically connected through the arrangement of the connecting groove 2, so that the relative operation and abrasion between the shaft sleeve 1 and the impeller and between the shaft sleeve and the back cover of the end part are avoided, and the sealing is completely failed.
Wherein, the sealing groove 3 is provided with an annular groove, and the diameter and the depth of the annular groove are 5mm and 4mm respectively.
Referring to fig. 3 and 4, a clamping groove 4 is formed in the inner side wall of the sealing groove 3, a first sealing gasket 5 is slidably connected inside the sealing groove 3, the first sealing gasket 5 is fixedly connected with a metal gasket 6 at one end far away from the sealing groove 3, the metal gasket 6 is fixedly connected with a second sealing gasket 7 at one end far away from the first sealing gasket 5, a buckle 8 is fixedly connected to the side wall of the metal gasket 6, and a fixing mechanism is fixedly connected to the buckle 8.
The sealing device for the circulating water pump shaft sleeve provided by the utility model has the advantages that through the arrangement of the sealing groove 3 and the annular groove, the rubber ring with the adaptive configuration can be tightly attached to the sealing surface of the impeller under the tightening force of the back cap, so that the effects of tight sealing and prolonging the service life of the sealing device are achieved, through the working fit among the first sealing gasket 5, the metal gasket 6 and the second sealing gasket 7, the rubber ring connected with the bottom of the first sealing gasket 5 is tightly connected with the annular groove in the sealing groove 3, so that the sealing surface is tightly attached, and the first sealing gasket 5 and the second sealing gasket 7 are tightly clamped in the connecting groove 2 through the arrangement of the metal gasket 6, so that the first sealing gasket 5 and the second sealing gasket 7 are prevented from shifting;
wherein, the quantity of draw-in groove 4 sets up to two, and two draw-in grooves 4 perpendicular and parallel arrangement.
Wherein, the bottom fixedly connected with rubber circle of first sealed 5, the size of rubber circle is unanimous with the size of ring channel.
Referring to fig. 4 and 5, the fixing mechanism comprises a loop bar 9, a sliding bar 10, a resisting plate 11 and a spring 12; the loop bar 9 is fixedly connected to the side wall of the buckle 8, the sliding rod 10 is slidably connected to the inner wall of the loop bar 9, the resisting plate 11 is fixedly connected to the side wall of one end of the sliding rod 10 far away from the loop bar 9, and the spring 12 is sleeved on the side walls of the loop bar 9 and the sliding rod 10.
It should be noted that, according to the circulating water pump shaft sleeve sealing device provided by the utility model, through the arrangement of the fixing mechanism, the spring 12 is pressed against the abutting plate 11 on the inside of the clamping groove 4, so that the metal gasket 6 is further tightly connected with the sealing groove 3, and the problem that when part of the shaft sleeve 1 is used, the sealing performance is poor, and a medium is easily introduced into the joint of the shaft sleeve 1 and the rotating shaft and the shaft head, so that more serious corrosion is caused is avoided.
The functional principle of the present invention can be illustrated by the following operation manner;
according to the circulating water pump shaft sleeve sealing device provided by the utility model, the rubber ring with the adaptive configuration can be tightly attached to the sealing surface of the impeller under the tightening force of the back cap through the sealing groove 3 and the annular groove, the shaft sleeve and the shaft are hermetically connected through the connecting groove 2, the spring 12 is pressed against the pressing plate 11 in the clamping groove 4 through the fixing mechanism, the metal gasket 6 is further tightly connected with the sealing groove 3, and the phenomenon that the shaft sleeve is corroded due to poor sealing performance is avoided.
Rubber circle and the interior ring channel zonulae occludens of seal groove 3 through the connection of 5 bottoms of first sealed pad, make sealed face closely laminate, make the first sealed pad 5 of setting up through metal gasket 6 and the sealed inseparable joint of 7 of second in the spread groove, avoid the sealed pad 7 aversion of first sealed pad 5 and second, setting through fixed establishment, make spring 12 support to press and support board 11 on draw-in groove 4's interior, make metal gasket 6 further with seal groove 3 zonulae occludens, avoid partial axle sleeve when using, its leakproofness is poor, lead to axle sleeve and pivot and spindle nose junction to get into the medium easily, cause more serious corruption.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. A circulating water pump shaft sleeve sealing device comprises a shaft sleeve (1) and a connecting groove (2) formed in the inner wall of the shaft sleeve (1), and is characterized in that a sealing groove (3) is formed in the right side wall of the shaft sleeve (1);
draw-in groove (4) have been seted up on the inside wall of seal groove (3), seal groove (3) inside sliding connection has first sealed pad (5), first sealed pad (5) are keeping away from the one end fixedly connected with metal gasket (6) of seal groove (3), metal gasket (6) are keeping away from the sealed pad (7) of one end fixedly connected with second of first sealed pad (5), fixedly connected with buckle (8) on the lateral wall of metal gasket (6), fixedly connected with fixed establishment on buckle (8).
2. The circulating water pump shaft sleeve sealing device is characterized in that the fixing mechanism comprises a sleeve rod (9), a sliding rod (10), a resisting plate (11) and a spring (12); loop bar (9) fixed connection be in on buckle (8) lateral wall, slide bar (10) sliding connection be in on loop bar (9) inner wall, support board (11) fixed connection be in slide bar (10) is keeping away from on the one end lateral wall of loop bar (9), spring (12) cup joint on the lateral wall of loop bar (9) and slide bar (10).
3. The circulating water pump shaft sleeve sealing device according to claim 1, wherein the sealing groove (3) is provided with an annular groove, and the annular groove is provided with a diameter of 5mm and a depth of 4 mm.
4. The circulating water pump shaft sleeve sealing device according to claim 3, wherein a rubber ring is fixedly connected to the bottom end of the first sealing gasket (5), and the size of the rubber ring is consistent with that of the annular groove.
5. The circulating water pump shaft sleeve sealing device according to claim 1, wherein the number of the clamping grooves (4) is two, and the two clamping grooves (4) are arranged vertically and in parallel.
6. The circulating water pump shaft sleeve sealing device according to claim 1, wherein the number of the buckles (8) is two, the two buckles (8) are arranged vertically and in parallel, and the size of the buckle (8) is smaller than that of the clamping groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122044305.0U CN216407252U (en) | 2021-08-27 | 2021-08-27 | Circulating water pump shaft sleeve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122044305.0U CN216407252U (en) | 2021-08-27 | 2021-08-27 | Circulating water pump shaft sleeve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407252U true CN216407252U (en) | 2022-04-29 |
Family
ID=81287722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122044305.0U Active CN216407252U (en) | 2021-08-27 | 2021-08-27 | Circulating water pump shaft sleeve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407252U (en) |
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2021
- 2021-08-27 CN CN202122044305.0U patent/CN216407252U/en active Active
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