CN216199021U - Impeller positioning structure of high-lift two-stage slurry pump - Google Patents
Impeller positioning structure of high-lift two-stage slurry pump Download PDFInfo
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- CN216199021U CN216199021U CN202122615590.7U CN202122615590U CN216199021U CN 216199021 U CN216199021 U CN 216199021U CN 202122615590 U CN202122615590 U CN 202122615590U CN 216199021 U CN216199021 U CN 216199021U
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Abstract
The utility model relates to the technical field of transport machinery, and provides an impeller positioning structure of a high-lift two-stage slurry pump, which comprises a rotating shaft and two driving impellers, wherein the rotating shaft is arranged in a pump shell, the two driving impellers are arranged on the rotating shaft, the two ends of each driving impeller are provided with positioning end faces, the adjacent positioning end faces of the driving impellers are provided with first grooves, a shaft shoulder is arranged on the rotating shaft and is positioned in the first grooves, a first gap is formed between the shaft shoulder and the first grooves, the impeller positioning structure also comprises a shaft sleeve sleeved on the rotating shaft, the pump shell comprises a feeding pump shell, a volute and a discharging pump shell which are sequentially connected, the two driving impellers are arranged on the volute and are connected, the positioning section on the other side of each driving impeller is contacted with the shaft sleeve and the feeding pump shell or the discharging pump shell, the two driving impellers are arranged on the two sides of the volute, the positioning section on the other side of each driving impeller is contacted with the shaft sleeve and the feeding pump shell or the discharging pump shell, through the technical scheme, the problem of among the prior art impeller installation inconvenient is solved.
Description
Technical Field
The utility model relates to the technical field of transport machinery, in particular to an impeller positioning structure of a high-lift two-stage slurry pump.
Background
The slurry pump belongs to a centrifugal pump in terms of working principle, and conceptually refers to a device which converts electric energy into kinetic energy and potential energy of a medium by a mechanism which increases the energy of a solid-liquid mixed medium through the action of centrifugal force (rotation of an impeller of the pump). The method is mainly suitable for the industries of mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like. The name slurry pump is a centrifugal pump divided from the perspective of the transport medium. In addition, the slurry pump can be divided into different types from different angles. Besides pumping water, the water pump can pump gas, solid-liquid mixture and mineral powder slurry, the power consumption of the water pump accounts for a large proportion in the total national electricity, the energy saving condition of the water pump has an important influence on national economy, and the water pump plays an active role in an energy saving link and also plays an important role in a thermal power generation emission reduction process.
Because of the medium of carrying is mostly mud class raw materials, consequently adopt doublestage sediment stuff pump to carry the raw materials more in work, and the impeller of doublestage sediment stuff pump is very important, and in the equipment process of sediment stuff pump, reasonable position need be adjusted to the impeller, otherwise can influence the speed of raw materials transportation and the life of pump, if the location is comparatively simple, can influence the stability after the equipment, if comparatively complicated, then the equipment of inconvenient pump.
Therefore, a solution to the above problem is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an impeller positioning structure of a high-lift two-stage slurry pump, which solves the problem of inconvenience in impeller installation in the related technology.
The technical scheme of the utility model is as follows:
an impeller positioning structure of a high-lift two-stage slurry pump comprises a pump shell, a rotating shaft and two driving impellers, wherein the rotating shaft is rotatably arranged in the pump shell, the two driving impellers are arranged on the rotating shaft, positioning end surfaces are arranged at two ends of each driving impeller, a first groove is formed in the adjacent positioning end surface of each driving impeller, a shaft shoulder is arranged on the rotating shaft and is positioned in the first groove, and a first gap is formed between the shaft shoulder and the first groove;
the axial sleeve is sleeved on the rotating shaft, the pump shell comprises a feeding pump shell, a volute and a discharging pump shell which are sequentially connected, the two driving impellers are arranged on two sides of the volute, and the positioning end face on the other side of each driving impeller is in contact with the axial sleeve and the feeding pump shell or the discharging pump shell.
As a further technical solution, a second groove is formed at an adjacent end of the two driving impellers, the volute is inserted into the second groove, and a second gap is formed between the volute and the second groove.
As a further technical scheme, the feeding pump shell is provided with a third groove, one end of the driving impeller, which is close to the pump shell, is inserted into the third groove, and a third gap is formed between the third groove and the driving impeller.
As a further technical scheme, the rotating shaft is provided with a plurality of key grooves, and the driving impeller is connected with the rotating shaft key.
As a further technical scheme, the feeding pump shell is provided with a first feeding section, and the discharging pump shell is provided with a second feeding section; the pump is characterized by further comprising an elbow, wherein the elbow is arranged on the pump shell, and two ends of the elbow are respectively communicated with the first feeding section and the second feeding section.
As a further technical scheme, the widths of the first gap, the second gap and the third gap are all between 1 mm and 2 mm.
The working principle and the beneficial effects of the utility model are as follows:
the utility model relates to an impeller positioning structure of a high-lift two-stage slurry pump, which comprises a rotating shaft and two driving impellers, wherein the rotating shaft is arranged in a pump shell, the two driving impellers are arranged on the rotating shaft, the two ends of each driving impeller are provided with positioning end faces, the adjacent positioning end faces of the driving impellers are provided with first grooves, each rotating shaft is provided with a shaft shoulder, each shaft shoulder is positioned in the corresponding first groove, a first gap is formed between each shaft shoulder and the corresponding first groove, the impeller positioning structure further comprises a shaft sleeve sleeved on the rotating shaft, the pump shell comprises a feeding pump shell, a volute and a discharging pump shell which are sequentially connected, the two driving impellers are arranged on the volute in a connected mode, the positioning section on the other side of each driving impeller is contacted with the shaft sleeve and the feeding pump shell or the discharging pump shell, the two driving impellers are arranged on the two sides of the volute, the positioning section on the other side of each driving impeller is contacted with the shaft sleeve and the feeding pump shell or the discharging pump shell,
when the feeding pump shell and the discharging pump shell are in work, the rotating shaft is arranged on the pump shell, the shaft sleeve is sleeved on the rotating shaft, the two driving impellers are arranged on the rotating shaft and are positioned between the two shaft sleeves, the shaft shoulder on the rotating shaft is positioned in the first groove of the driving impeller, a first gap is also formed between the first groove and the shaft shoulder, the two driving impellers are positioned at two sides of the volute, the feeding pump shell and the discharging pump shell cover the two driving impellers, the other positioning surfaces of the driving impellers are respectively contacted with the shaft sleeve and the feeding pump shell or the discharging pump shell,
the beneficial effects are that, the first recess of drive impeller can make drive impeller fix on the drive shaft through the cooperation with the shaft shoulder, drive impeller through with the cover establish the epaxial axle sleeve of drive, can realize the fixed of drive impeller both ends, rethread spiral case and drive impeller's cooperation can realize the radial location of drive impeller, finally make the drive impeller can be better the location in the sediment stuff pump, have first clearance between shaft shoulder and the first recess, can make better location of drive impeller epaxial, reduce the installation degree of difficulty of drive impeller.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of A-B of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of a portion of the utility model shown at C in FIG. 2;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 2;
in the figure: 1. the device comprises a pump shell, 2, a rotating shaft, 3, a driving impeller, 31, a first groove, 21, a shaft shoulder, 311, a first gap, 11, a feeding pump shell, 12, a volute, 13, a discharging pump shell, 4, a shaft sleeve, 32, a second groove, 321, a second gap, 111, a third groove, 112, a third gap, 22, a key groove, 113, a first feeding section, 131, a second feeding section, 5 and a bent pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1 to 4, the present embodiment provides an impeller positioning structure of a high-lift two-stage slurry pump, including a pump housing 1, a rotating shaft 2 rotatably disposed in the pump housing 1, and two driving impellers 3 disposed on the rotating shaft 2, two ends of the driving impellers 3 have positioning end surfaces, the adjacent positioning end surfaces of the driving impellers 3 have first grooves 31, the rotating shaft 2 has a shaft shoulder 21, the shaft shoulder 21 is located in the first groove 31, and a first gap 311 is provided between the shaft shoulder 21 and the first groove 31;
the pump shell 1 comprises a feeding pump shell 111, a volute 12 and a discharging pump shell 131 which are sequentially connected, two driving impellers 3 are arranged on two sides of the volute 12, and the positioning end face of the other side of each driving impeller 3 is in contact with the shaft sleeve 4 and the feeding pump shell 111 or the discharging pump shell 131.
In the embodiment, the impeller positioning structure of the high-lift two-stage slurry pump comprises a rotating shaft 2 and two driving impellers 3, wherein the rotating shaft 2 is arranged in a pump shell 1, the two driving impellers 3 are arranged on the rotating shaft 2, the two ends of each driving impeller 3 are provided with positioning end faces, the adjacent positioning end faces of the driving impellers 3 are provided with first grooves 31, the rotating shaft 2 is provided with a shaft shoulder 21, the shaft shoulder 21 is positioned in the first groove 31, a first gap 311 is formed between the shaft shoulder 21 and the first grooves 31, the impeller positioning structure further comprises a shaft sleeve 4 sleeved on the rotating shaft 2, the pump shell 1 comprises a feeding pump shell 111, a volute 12 and a discharging pump shell 131 which are sequentially connected, the two driving impellers 3 are arranged on the connection of the volute 12, the positioning section on the other side of each driving impeller 3 is contacted with the shaft sleeve 4 and the feeding pump shell 111 or the discharging pump shell 131, the two driving impellers 3 are arranged on the two sides of the volute 12, the positioning section on the other side of each driving impeller 3 is contacted with the shaft sleeve 4 and the feeding pump shell 111 or the discharging pump shell 131,
when the device works, the rotating shaft 2 is arranged on the pump shell 1, the shaft sleeve 4 is sleeved on the rotating shaft 2, the two driving impellers 3 are arranged on the rotating shaft 2 and are positioned between the two shaft sleeves 4, the shaft shoulder 21 on the rotating shaft 2 is positioned in the first groove 31 of the driving impeller 3, a first gap 311 is also arranged between the first groove 31 and the shaft shoulder 21, the two driving impellers 3 are positioned at two sides of the volute 12, the feeding pump shell 111 and the discharging pump shell 131 cover the two driving impellers 3, the other positioning surfaces of the driving impellers 3 are respectively contacted with the shaft sleeve 4 and the feeding pump shell 111 or the discharging pump shell 131,
Further, a second groove 32 is formed at one end of the two adjacent driving impellers 3, the volute 12 is located in the second groove 32, and a second gap 321 is formed between the volute 12 and the second groove 32.
In this embodiment, the second groove 32 is formed at the adjacent end of the two drive impellers 3, the volute 12 is located in the second groove 32, the second gap 321 is formed between the volute 12 and the second groove 32, the volute 12 is located in the second groove 32, the second groove 32 is formed by splicing the two drive impellers 3, during installation, after the position of the rotating shaft 2 is adjusted, the positions of the two drive impellers 3 are fixed by the positions of the volute 12 and the shaft shoulder 21, so that better positioning is realized, the second gap 321 is formed between the volute 12 and the second groove 32, so that the drive impellers 3 have a certain adjustment space, and the installation difficulty is reduced.
Further, the feeding pump housing 111 has a third groove 111, one end of the driving impeller 3 close to the pump housing 1 is inserted into the third groove 111, and a third gap 112 is formed between the third groove 111 and the driving impeller 3.
In this embodiment, the feeding pump casing 111 has the third groove 111, the end of the driving impeller 3 close to the pump casing 1 is inserted into the third groove 111, the third groove 111 and the driving impeller 3 have the third gap 112, through the third groove 111, the driving impeller 3 can be better positioned when being installed, one end of the driving impeller 3 is inserted into the third groove 111, not only the axial direction of the driving impeller 3 can be fixed, but also the radial position can be positioned, the positioning of the driving impeller 3 is more accurate, the third gap 112 is provided between the third groove 111 and the driving impeller 3, the driving impeller 3 has a certain adjustment space, and the installation difficulty is reduced.
Further, the rotating shaft 2 has a plurality of key slots 22, and the driving impeller 3 is keyed with the rotating shaft 2.
In this embodiment, the drive shaft has a plurality of keyways 22, drive impeller 3 and 2 key-type connections of axis of rotation, drive impeller 3 can realize synchronous rotation better with axis of rotation 2 through the key-type connection, make drive impeller 3 rotate more stably, and when the drive shaft rotated, the key-type connection can more effectual fixed drive impeller 3, made drive impeller 3 follow axis of rotation 2 and rotate.
Further, the feeding pump shell 111 is provided with a first feeding section 113, and the discharging pump shell 131 is provided with a second feeding section 131; the pump further comprises an elbow pipe 5, the elbow pipe 5 is arranged on the pump shell 1, and two ends of the elbow pipe 5 are respectively communicated with the first feeding section 113 and the second feeding section 131.
In this embodiment, the feeding pump case 111 has a first feeding section 113, the discharging pump case 131 has a second feeding section 131, and further includes a bent tube 5 disposed on the pump case 1, and two ends of the bent tube 5 are respectively communicated with the first feeding section 113 and the second feeding section 131, when in operation, the raw material enters the pump body from the first feeding section 113 of the feeding pump case 111, and enters the bent tube 5 after being accelerated by the driving impeller 3, so that the driving impeller 3 entering the second feeding section 131 accelerates the second section, and finally is sent out from the outlet end of the second feeding section 131, so that the raw material can be sent out after being accelerated twice, and the bent tube 5 is provided to communicate the two feeding sections, so that one driving shaft can realize two-section acceleration.
Further, the widths of the first gap 311, the second gap 321 and the third gap 112 are all between 1 mm and 2 mm.
In this embodiment, the widths of the first gap 311, the second gap 321 and the third gap 112 are all between 1 mm and 2mm, and the gap of 1 mm to 2mm can not only enable the impeller to be adjusted and positioned better, but also can not affect the working state of the impeller during working.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The impeller positioning structure of the high-lift double-stage slurry pump comprises a pump shell (1), a rotating shaft (2) rotatably arranged in the pump shell (1) and two driving impellers (3) arranged on the rotating shaft (2), and is characterized in that two ends of each driving impeller (3) are provided with positioning end faces, the adjacent positioning end faces of the driving impellers (3) are provided with first grooves (31), a shaft shoulder (21) is arranged on the rotating shaft (2), the shaft shoulder (21) is positioned in the first grooves (31), and a first gap (311) is formed between the shaft shoulder (21) and the first grooves (31);
the novel material-saving pump is characterized by further comprising a shaft sleeve (4) sleeved on the rotating shaft (2), the pump shell (1) comprises a feeding pump shell (111), a volute (12) and a discharging pump shell (131) which are sequentially connected, the two driving impellers (3) are arranged on two sides of the volute (12), and the positioning end face of the other side of each driving impeller (3) is in contact with the shaft sleeve (4) and the feeding pump shell (111) or the discharging pump shell (131).
2. An impeller positioning structure of a high-lift two-stage slurry pump according to claim 1, wherein a second groove (32) is formed at an end adjacent to two of the driving impellers (3), the volute (12) is located in the second groove (32), and a second gap (321) is formed between the volute (12) and the second groove (32).
3. The impeller positioning structure of a high-lift two-stage slurry pump according to claim 2, wherein the feeding pump housing (111) has a third groove (111), the driving impeller (3) is inserted into the third groove (111) near one end of the pump housing (1), and the third groove (111) has a third gap (112) with the driving impeller (3).
4. The impeller positioning structure of a high-lift dual-stage slurry pump according to claim 1, wherein the rotating shaft (2) is provided with a plurality of key grooves (22), and the driving impeller (3) is in key connection with the rotating shaft (2).
5. The impeller positioning structure of a high-lift two-stage slurry pump according to claim 1, wherein the feeding pump shell (111) has a first feeding section (113), and the discharging pump shell (131) has a second feeding section (131); still include return bend (5), return bend (5) set up on pump case (1), return bend (5) both ends respectively with first feeding section (113) and second feeding section (131) intercommunication.
6. The impeller positioning structure of a high-lift two-stage slurry pump according to claim 3, wherein the widths of the first gap (311), the second gap (321) and the third gap (112) are all between 1 and 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122615590.7U CN216199021U (en) | 2021-10-28 | 2021-10-28 | Impeller positioning structure of high-lift two-stage slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122615590.7U CN216199021U (en) | 2021-10-28 | 2021-10-28 | Impeller positioning structure of high-lift two-stage slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216199021U true CN216199021U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122615590.7U Active CN216199021U (en) | 2021-10-28 | 2021-10-28 | Impeller positioning structure of high-lift two-stage slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216199021U (en) |
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2021
- 2021-10-28 CN CN202122615590.7U patent/CN216199021U/en active Active
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