CN213176153U - Special shaft of wear-resistant precision multistage centrifugal pump - Google Patents
Special shaft of wear-resistant precision multistage centrifugal pump Download PDFInfo
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- CN213176153U CN213176153U CN202021514965.XU CN202021514965U CN213176153U CN 213176153 U CN213176153 U CN 213176153U CN 202021514965 U CN202021514965 U CN 202021514965U CN 213176153 U CN213176153 U CN 213176153U
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- pump shaft
- sealing
- sleeve
- centrifugal pump
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Abstract
The utility model discloses a special axle of stand wear and tear precision type multistage centrifugal pump, including axle sleeve and pump shaft, the pump shaft sets up the inside at the axle sleeve, the connecting axle is all installed to the top and the bottom of pump shaft, the one end that the pump shaft was kept away from to the connecting axle runs through the axle sleeve and extends to its outside. The utility model provides an axle sleeve is made by the metal, under the effect of locking force in the assembling process, the axle sleeve is difficult to take place to warp, and in long-term use, can not be because of wearing and tearing, the length and the appearance that reason such as intensity and rigidity are not enough lead to centrifugal pump shaft change, the stand wear and tear effect of pump shaft has been improved, and through the first sealing washer in the seal assembly, mutually support of sealed outer lane and sealed inner circle, the sealed effect of centrifugal pump shaft has been improved, it has the coolant oil to fill in the axle sleeve, can cool off the pump shaft, avoid the pump shaft to be heated and lead to its damage to appear, improve the life of centrifugal pump shaft, bring very big facility for the user.
Description
Technical Field
The utility model relates to a centrifugal pump technical field specifically is special axle of stand wear and tear precision type multistage centrifugal pump.
Background
The centrifugal pump has various forms such as vertical type, horizontal type, single stage, multistage, single suction, double suction, self suction and the like. Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.
In the prior art, the wear-resistant effect of the current common special shaft for the precision type multistage centrifugal pump is not ideal, when the shaft sleeve is used, the shaft sleeve of the centrifugal pump is usually made of plastic, under the action of locking force in the assembling process, the shaft sleeve is easy to deform, and in the long-term use process, the length and the appearance are easy to change due to the reasons of wear, insufficient strength and rigidity and the like, the sealing effect of the centrifugal pump shaft is poor, the service life of the centrifugal pump is influenced, and therefore the wear-resistant special shaft for the precision type multistage centrifugal pump is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a special axle of stand wear and tear precision type multistage centrifugal pump to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the special shaft for the wear-resistant precision multistage centrifugal pump comprises a shaft sleeve and a pump shaft, wherein the pump shaft is arranged inside the shaft sleeve, connecting shafts are arranged at the top and the bottom of the pump shaft, one end, away from the pump shaft, of each connecting shaft penetrates through the shaft sleeve and extends to the outside of the shaft sleeve, a sealing assembly is arranged between each connecting shaft and the corresponding shaft sleeve, an oil inlet pipe is arranged at the top of the left side of the shaft sleeve, and an oil outlet pipe is arranged at the bottom of the right side;
the sealing assembly comprises two through grooves which are respectively arranged at the top and the bottom of the inner wall of the shaft sleeve, one end of the connecting shaft, which is far away from the pump shaft, penetrates through the through grooves and extends to the outside of the connecting shaft, a first sealing ring is arranged on the inner wall of the through grooves and on one side, which is close to the pump shaft, of the first sealing ring, a sealing outer ring and a sealing inner ring are respectively arranged on one side, which is far away from the pump shaft, of the first sealing ring, bumps are respectively arranged on one sides, which are close to the pump shaft, of the sealing outer ring and the sealing inner ring, one ends, which are close to the pump shaft, of the bumps penetrate through the first sealing ring and extend into the first sealing ring, sealing press plates are respectively arranged at the top and the bottom of the shaft sleeve, connecting sleeves are respectively arranged inside the sealing outer ring, the inside of first mounting hole is provided with the screw, the one end that the screw is close to the axle sleeve runs through first mounting hole and second mounting hole in proper order and extends to the inside of second mounting hole.
Preferably, the inside of the bushing is filled with cooling oil.
Preferably, the outer surface mounting of axle sleeve has the second sealing washer with advance oil pipe looks adaptation, the outer surface mounting of axle sleeve has the third sealing washer with go out oil pipe looks adaptation.
Preferably, the top and the bottom of the shaft sleeve and the position corresponding to the sealing pressure plate are provided with sealing gaskets.
Preferably, the screw is a stainless steel screw, and the surface of the screw is respectively in threaded connection with the first mounting hole and the second mounting hole.
Preferably, the shaft sleeve is made of metal.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a shaft sleeve is made by the metal, under the effect of locking force in the assembling process, the shaft sleeve is difficult to take place to warp, and in long-term use, can not be because of wearing and tearing, the length and the appearance that reason such as intensity and rigidity are not enough lead to centrifugal pump shaft change, the stand wear and tear effect of pump shaft has been improved, and through the first sealing washer in the seal assembly, mutually support of sealed outer lane and sealed inner circle, the sealed effect of centrifugal pump shaft has been improved, it has the coolant oil to fill in the shaft sleeve, can cool off the pump shaft, avoid the pump shaft to be heated and lead to its damage to appear, improve the life of centrifugal pump shaft, bring very big facility for the user.
2. The utility model discloses a set up the second sealing washer and played the effect of sealing up advancing the gap between oil pipe and the axle sleeve, played the effect of sealing up going out the gap between oil pipe and the axle sleeve through setting up the third sealing washer, sealed pad has played the effect of sealing up the gap between seal pressing plate and the axle sleeve through setting up.
Drawings
FIG. 1 is a sectional view of the front view of the present invention;
fig. 2 is a partial enlarged view of a-a in fig. 1 according to the present invention.
In the figure: the sealing device comprises a shaft sleeve 1, a pump shaft 2, a connecting shaft 3, a sealing assembly 4, a through groove 41, a first sealing ring 42, a sealing outer ring 43, a sealing inner ring 44, a convex block 45, a sealing pressing plate 46, a connecting sleeve 47, a first mounting hole 48, a second mounting hole 49, a screw 410, an oil inlet pipe 5, an oil outlet pipe 6, a second sealing ring 7, a third sealing ring 8 and a sealing gasket 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the special shaft for the wear-resistant precision multistage centrifugal pump comprises a shaft sleeve 1 and a pump shaft 2, wherein the pump shaft 2 is arranged inside the shaft sleeve 1, connecting shafts 3 are respectively arranged at the top and the bottom of the pump shaft 2, one end, far away from the pump shaft 2, of each connecting shaft 3 penetrates through the shaft sleeve 1 and extends to the outside of the shaft sleeve, a sealing assembly 4 is arranged between each connecting shaft 3 and the shaft sleeve 1, an oil inlet pipe 5 is arranged at the top of the left side of the shaft sleeve 1, and an oil outlet pipe 6 is arranged.
The sealing component 4 comprises two through grooves 41, the two through grooves 41 are respectively arranged at the top and the bottom of the inner wall of the shaft sleeve 1, one end of the connecting shaft 3, which is far away from the pump shaft 2, penetrates through the through groove 41 and extends to the outside of the connecting shaft, a first sealing ring 42 is arranged on one side, which is close to the pump shaft 2, of the inner wall of the through groove 41, one side, which is far away from the pump shaft 2, of the first sealing ring 42 is respectively provided with a sealing outer ring 43 and a sealing inner ring 44, one sides, which are close to the pump shaft 2, of the sealing outer ring 43 and the sealing inner ring 44 are respectively provided with a bump 45, one end, which is close to the pump shaft 2, of the bump 45 penetrates through the first sealing ring 42 and extends to the inside of the first sealing ring 42, the top and the bottom of the shaft sleeve 1 are respectively provided with a sealing pressing plate 46, the insides of the sealing, the first mounting hole 48 is internally provided with a screw 410, and one end of the screw 410 close to the shaft sleeve 1 sequentially penetrates through the first mounting hole 48 and the second mounting hole 49 and extends to the inside of the second mounting hole 49.
In the specific implementation, the inside of the sleeve 1 is filled with cooling oil.
When concrete implementation, the surface mounting of axle sleeve 1 has the second sealing washer 7 with advancing oil pipe 5 looks adaptation, has played the effect of sealing up advancing the gap between oil pipe 5 and the axle sleeve 1 through setting up second sealing washer 7, the surface mounting of axle sleeve 1 has the third sealing washer 8 with play oil pipe 6 looks adaptation, has played the effect of sealing up the gap between play oil pipe 6 and the axle sleeve 1 through setting up third sealing washer 8.
In the specific implementation, the top and the bottom of the shaft sleeve 1 and the positions corresponding to the sealing pressure plate 46 are provided with the sealing gaskets 9, and the sealing gaskets 9 are arranged to seal the gap between the sealing pressure plate 46 and the shaft sleeve 1.
In one implementation, the screws 410 are stainless steel screws, and the surfaces of the screws 410 are threaded into the first and second mounting holes 48 and 49, respectively.
In the specific implementation, the shaft sleeve 1 is made of metal.
During the use, axle sleeve 1 is made by the metal, under the effect of locking force in the assembling process, axle sleeve 1 is difficult to take place to warp, and in long-term use, can not change because of wearing and tearing, reasons such as intensity and rigidity are not enough lead to centrifugal pump shaft 2's length and appearance, the stand wear and tear effect of pump shaft 2 has been improved, and through the first sealing washer 42 that sets up in logical groove 41, sealed outer lane 43 and sealed inner circle 44, then to first sealing washer 42 through sealed clamp plate 46, sealed outer lane 43 and sealed inner circle 44 lock, the sealed effect of centrifugal pump shaft 2 has been improved, it has the coolant oil to fill in axle sleeve 1, can cool off pump shaft 2, avoid pump shaft 2 to be heated and lead to its damage to appear, improve centrifugal pump shaft 2's life, bring very big facility for the user.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The special shaft of wear-resistant precision multistage centrifugal pump is characterized in that: the pump shaft comprises a shaft sleeve (1) and a pump shaft (2), wherein the pump shaft (2) is arranged inside the shaft sleeve (1), connecting shafts (3) are arranged at the top and the bottom of the pump shaft (2), one end, far away from the pump shaft (2), of each connecting shaft (3) penetrates through the shaft sleeve (1) and extends to the outside of the shaft sleeve, a sealing assembly (4) is arranged between each connecting shaft (3) and the corresponding shaft sleeve (1), an oil inlet pipe (5) is arranged at the top of the left side of the shaft sleeve (1), and an oil outlet pipe (6) is arranged at the bottom of the right side of the shaft;
the sealing assembly (4) comprises two through grooves (41), the two through grooves (41) are respectively arranged at the top and the bottom of the inner wall of the shaft sleeve (1), one end, far away from the pump shaft (2), of the connecting shaft (3) penetrates through the through grooves (41) and extends to the outside of the connecting shaft, a first sealing ring (42) is arranged on one side, close to the pump shaft (2), of the inner wall of the through grooves (41), a sealing outer ring (43) and a sealing inner ring (44) are respectively arranged on one side, far away from the pump shaft (2), of the first sealing ring (42), a bump (45) is respectively arranged on one side, close to the pump shaft (2), of the sealing outer ring (43) and one side, close to the pump shaft (2), of the bump (45), the first sealing ring (42) is penetrated through and extends to the inside of the bump, sealing pressing plates (46) are respectively arranged at the top and the bottom of the shaft sleeve (1), and connecting sleeves (, one side and sealed clamp plate (46) fixed connection of pump shaft (2) are kept away from in adapter sleeve (47), the surface of sealed clamp plate (46) is provided with first mounting hole (48), one side that axle sleeve (1) is close to sealed clamp plate (46) is provided with second mounting hole (49), the inside of first mounting hole (48) is provided with screw (410), the one end that screw (410) are close to axle sleeve (1) runs through first mounting hole (48) and second mounting hole (49) in proper order and extends to the inside of second mounting hole (49).
2. The wear-resistant precision type special shaft for a multistage centrifugal pump according to claim 1, wherein: the shaft sleeve (1) is filled with cooling oil.
3. The wear-resistant precision type special shaft for a multistage centrifugal pump according to claim 1, wherein: the outer surface mounting of axle sleeve (1) has second sealing washer (7) with advancing oil pipe (5) looks adaptation, the outer surface mounting of axle sleeve (1) has third sealing washer (8) with play oil pipe (6) looks adaptation.
4. The wear-resistant precision type special shaft for a multistage centrifugal pump according to claim 1, wherein: and sealing gaskets (9) are arranged at the top and the bottom of the shaft sleeve (1) and correspond to the positions of the sealing pressure plates (46).
5. The wear-resistant precision type special shaft for a multistage centrifugal pump according to claim 1, wherein: the screw (410) is set to be a stainless steel screw, and the surface of the screw (410) is in threaded connection with the first mounting hole (48) and the second mounting hole (49) respectively.
6. The wear-resistant precision type special shaft for a multistage centrifugal pump according to claim 1, wherein: the shaft sleeve (1) is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021514965.XU CN213176153U (en) | 2020-07-28 | 2020-07-28 | Special shaft of wear-resistant precision multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021514965.XU CN213176153U (en) | 2020-07-28 | 2020-07-28 | Special shaft of wear-resistant precision multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176153U true CN213176153U (en) | 2021-05-11 |
Family
ID=75796088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021514965.XU Active CN213176153U (en) | 2020-07-28 | 2020-07-28 | Special shaft of wear-resistant precision multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176153U (en) |
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2020
- 2020-07-28 CN CN202021514965.XU patent/CN213176153U/en active Active
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