CN221195475U - Coupling of centrifugal pump - Google Patents
Coupling of centrifugal pump Download PDFInfo
- Publication number
- CN221195475U CN221195475U CN202323139736.0U CN202323139736U CN221195475U CN 221195475 U CN221195475 U CN 221195475U CN 202323139736 U CN202323139736 U CN 202323139736U CN 221195475 U CN221195475 U CN 221195475U
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- shaft
- flange
- sleeve
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 13
- 238000010168 coupling process Methods 0.000 title claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The shaft coupling of the centrifugal pump comprises a first shaft sleeve (1) connected with a motor shaft, a third shaft sleeve (11) connected with a pump shaft, wherein the shape of the third shaft sleeve (11) is the same as that of the first shaft sleeve (1), a ring edge (7) at the left end of the second shaft sleeve is connected with a flange (5) of the first shaft sleeve through a plurality of bolts and nuts, a ring edge at the right end of the second shaft sleeve is connected with the flange of the third shaft sleeve (11) through a plurality of bolts and nuts, a rubber gasket (14) is arranged between the flange (5) and the ring edge (7), and a rubber sleeve (13) is arranged between the bolts and the flange (5); the coupling has the beneficial effects that the coupling is convenient to detach, only the bolt and the second shaft sleeve are required to be taken out, and the motor or the pump body of the centrifugal pump does not need to be moved. The rubber sleeve is arranged between the bolt and the flange and can compensate the angular displacement of the pump shaft and the motor shaft, the rubber gasket is arranged between the flange and the annular edge and can compensate the axial displacement, and the rubber sleeve and the rubber gasket have the effects of vibration absorption and vibration isolation.
Description
Technical Field
The utility model relates to a coupling.
Background
The coupling of the centrifugal pump consists of a driving shaft sleeve and a driven shaft sleeve, when the centrifugal pump is used, the driving shaft sleeve is connected with a motor shaft, the driven shaft sleeve is connected with a pump shaft, then the motor is moved to enable the driving shaft sleeve to be in contact with the driven shaft sleeve, and the driving shaft sleeve is connected with the driven shaft sleeve through bolts; the motor is required to be moved when the coupler is disassembled, and the position of the motor is required to be adjusted repeatedly to ensure the coaxial line of the motor shaft and the pump shaft when the coupler is installed again, so that the maintenance of the centrifugal pump is very inconvenient.
Disclosure of utility model
In view of the above, the present utility model proposes a coupling for a centrifugal pump that does not require a moving motor or the pump body of the centrifugal pump to be disassembled.
The technical scheme of the utility model is that the coupling of the centrifugal pump comprises a first shaft sleeve 1 connected with a motor shaft and a third shaft sleeve 11 connected with a pump shaft, and is characterized in that a second shaft sleeve 10 is arranged between the first shaft sleeve 1 and the third shaft sleeve 11, annular edges 7 are respectively extended at the left end and the right end of the second shaft sleeve along the radial direction, a flange 5 is extended at one end of the first shaft sleeve 1 along the radial direction, a pin groove 12 is arranged on the inner wall of the first shaft sleeve, the shape of the third shaft sleeve 11 is the same as that of the first shaft sleeve 1, the annular edge 7 at the left end of the second shaft sleeve is connected with the flange 5 of the first shaft sleeve through a plurality of bolts and nuts, and the annular edge at the right end of the second shaft sleeve is connected with the flange of the third shaft sleeve 11 through a plurality of bolts and nuts.
The bolt 2 is provided with a polish rod part and a threaded part 9, the polish rod part is in a step shape and is provided with a first rod part 4, one end of the first rod part 4 is provided with a convex edge 3 in a radial extending mode, the other end of the first rod part 4 is provided with a second rod part 6, the diameter of the second rod part is smaller than that of the first rod part, the threaded part 9 is positioned at one end of the second rod part, a nut 8 is screwed on the threaded part, and the nut is attached to the annular edge 7; the first rod part is inserted into the flange 5 of the first shaft sleeve 1, the second rod part 6 is inserted into the annular edge 7 of the second shaft sleeve, a rubber gasket 14 is arranged between the flange 5 and the annular edge 7 at the left end of the second shaft sleeve, the rubber gasket is sleeved on the first rod part 4 of the bolt, and a rubber sleeve 13 is arranged between the second rod part and the flange 5; a rubber gasket is also arranged between the flange of the third shaft sleeve and the annular edge of the right end of the second shaft sleeve, and a rubber sleeve is also arranged between the flange of the third shaft sleeve and the bolt.
The utility model has the beneficial effects that the disassembly of the coupler is convenient, the bolts and the second shaft sleeve are only required to be taken out, and the motor or the pump body of the centrifugal pump does not need to be moved. The rubber sleeve is arranged between the bolt and the flange and can compensate the angular displacement of the pump shaft and the motor shaft, the rubber gasket is arranged between the flange and the annular edge and can compensate the axial displacement, and the rubber sleeve and the rubber gasket have the effects of vibration absorption and vibration isolation.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The attached sign: 1-first shaft sleeve, 2-bolt, 3-convex edge, 4-first pole portion, 5-flange, 6-second pole portion, 7-ring limit, 8-nut, 9-screw thread portion, 10-second shaft sleeve, 11-third shaft sleeve, 12-keyway, 13-rubber sleeve, 14-rubber packing, 15-spring packing.
Detailed Description
The utility model provides a shaft coupling of centrifugal pump, it includes the first axle sleeve 1 that is connected with the motor shaft, the third axle sleeve 11 that is connected with the pump shaft, characterized by is equipped with second axle sleeve 10 between first axle sleeve 1 and third axle sleeve 11, the both ends along radial extension respectively have ring limit 7 about the second axle sleeve, the one end of first axle sleeve 1 is along radial extension having flange 5, be equipped with keyway 12 on the inner wall of first axle sleeve, the shape of third axle sleeve 11 is the same with the shape of first axle sleeve 1, the ring limit 7 of second axle sleeve left end is connected with the flange 5 of first axle sleeve through a plurality of bolts 2 and nuts 8, the ring limit of second axle sleeve right-hand member is connected with the flange of third axle sleeve 11 through bolt and nut.
When the novel motor is used, the motor shaft is inserted into the first shaft sleeve in an interference fit mode, the flat key on the motor shaft is inserted into the key groove 12, the pump shaft is inserted into the third shaft sleeve in an interference fit mode, the flat key on the pump shaft is inserted into the key groove of the third shaft sleeve, the motor is moved to enable the motor shaft to be coaxial with the pump shaft, the interval between the first shaft sleeve and the third shaft sleeve is slightly larger than the length of the second shaft sleeve, the length of the second shaft sleeve is larger than the length of the bolt, then the first shaft sleeve is connected with the second shaft sleeve through the bolt and the nut, and the second shaft sleeve is connected with the third shaft sleeve. The coupler is convenient to detach, only the bolt and the second sleeve are required to be taken out, a motor or a pump body of the centrifugal pump does not need to be moved, and when the coupler is installed again, the motor shaft and the pump shaft do not need to be centered again.
As an improvement, the bolt 2 has a polish rod part and a thread part 9, the polish rod part is in a step shape, the polish rod part has a first rod part 4, one end of the first rod part 4 extends along the radial direction to form a convex edge 3, the other end of the first rod part 4 is a second rod part 6, the diameter of the second rod part is smaller than that of the first rod part, the thread part is positioned at one end of the second rod part, a nut 8 is screwed on the thread part, and the nut is attached to the annular edge 7; the first rod part is inserted into the flange 5 of the first shaft sleeve 1, the second rod part 6 is inserted into the annular edge 7 of the second shaft sleeve, a rubber gasket 14 is arranged between the flange 5 and the annular edge 7, the rubber gasket is sleeved on the first rod part 4 of the bolt, and a rubber sleeve 13 is arranged between the second rod part and the flange 5; a rubber gasket is also arranged between the flange of the third shaft sleeve and the annular edge of the second shaft sleeve, a rubber sleeve is also arranged between the flange of the third shaft sleeve and the bolt, and the bolt is provided with a polish rod part and a thread part 9.
The length of the first rod part is slightly smaller than the sum of the thickness of the flange and the thickness of the rubber gasket, and the screw nut can be screwed down to fix the bolt on the second shaft sleeve and enable the flange 5 to press the rubber gasket, so that torque transmission is completed through the rubber sleeve and the polished rod part of the bolt.
The rubber sleeve is arranged between the bolt and the flange and can compensate the angular displacement of the pump shaft and the motor shaft, the rubber gasket is arranged between the flange and the annular edge and can compensate the axial displacement, and the rubber sleeve and the rubber gasket have the effects of vibration absorption and vibration isolation.
To prevent the nut from loosening, a spring washer 15 is provided between the nut 8 and the rim 7.
Claims (3)
1. The shaft coupling of the centrifugal pump comprises a first shaft sleeve (1) connected with a motor shaft and a third shaft sleeve (11) connected with a pump shaft, and is characterized in that a second shaft sleeve (10) is arranged between the first shaft sleeve (1) and the third shaft sleeve (11), annular edges (7) are respectively arranged at the left end and the right end of the second shaft sleeve in a radial extending mode, flanges (5) are arranged at one end of the first shaft sleeve (1) in the radial extending mode, pin grooves (12) are formed in the inner wall of the first shaft sleeve, the shape of the third shaft sleeve (11) is identical to that of the first shaft sleeve (1), the annular edge (7) at the left end of the second shaft sleeve is connected with the flange (5) of the first shaft sleeve through a plurality of bolts and nuts, and the annular edge at the right end of the second shaft sleeve is connected with the flange (11) of the third shaft sleeve through a plurality of bolts and nuts.
2. The coupling of a centrifugal pump according to claim 1, wherein the bolt (2) has a polish rod portion and a threaded portion (9), the polish rod portion is stepped and has a first rod portion (4), one end of the first rod portion (4) extends radially to form a convex edge (3), the other end of the first rod portion (4) is a second rod portion (6), the diameter of the second rod portion is smaller than that of the first rod portion, the threaded portion is located at one end of the second rod portion, a nut (8) is screwed on the threaded portion, and the nut is attached to the annular edge (7); the first rod part is inserted into the flange (5) of the first shaft sleeve (1), the second rod part (6) is inserted into the annular edge (7) at the left end of the second shaft sleeve, a rubber gasket (14) is arranged between the flange (5) and the annular edge (7) at the left end of the second shaft sleeve, the rubber gasket is sleeved on the first rod part (4) of the bolt, and a rubber sleeve (13) is arranged between the first rod part and the flange (5); a rubber gasket is also arranged between the flange of the third shaft sleeve and the annular edge of the right end of the second shaft sleeve, and a rubber sleeve is also arranged between the flange of the third shaft sleeve and the bolt.
3. A coupling for a centrifugal pump according to claim 2, characterized in that a spring washer (15) is arranged between the nut (8) and the rim (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323139736.0U CN221195475U (en) | 2023-11-21 | 2023-11-21 | Coupling of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323139736.0U CN221195475U (en) | 2023-11-21 | 2023-11-21 | Coupling of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195475U true CN221195475U (en) | 2024-06-21 |
Family
ID=91489870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323139736.0U Active CN221195475U (en) | 2023-11-21 | 2023-11-21 | Coupling of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195475U (en) |
-
2023
- 2023-11-21 CN CN202323139736.0U patent/CN221195475U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108757754B (en) | Portable transmission connecting piece | |
| CN221195475U (en) | Coupling of centrifugal pump | |
| CN102797763A (en) | Novel hydraulic expansion sleeve | |
| CN2756896Y (en) | Driving shaft lining sleeve | |
| CN102588323A (en) | Locking and transmission device of rotor components of vertical multi-stage pump | |
| CN204140674U (en) | Taper sleeve type fast assembling-disassembling coupling | |
| CN103352924A (en) | Heavy-load hub cone interference fitting structure and installing and dismantling method thereof | |
| CN202073941U (en) | Expansion coupling sleeve | |
| CN201705820U (en) | Expansion sleeve for delivering torque between hole and shaft | |
| CN108361290A (en) | A kind of more valve clamping couplings | |
| CN204538911U (en) | A kind of motor expansion sleeve disassembling fixture | |
| CN203384242U (en) | Conical interference fit structure for heavy-duty hub | |
| CN214036781U (en) | Main reducer flange structure, main reducer assembly and automobile | |
| CN202790169U (en) | Novel hydraulic expansion casing | |
| CN219649791U (en) | Dismounting tool for half shaft in automatic gearbox | |
| CN217814627U (en) | Elastic sleeve pin and coupling with same | |
| CN208826517U (en) | A kind of hydraulic semiaxis extracting tool | |
| CN220884538U (en) | Steering gear assembly | |
| CN216265798U (en) | Diesel engine output shaft | |
| CN219587988U (en) | Universal joint structure | |
| CN220660691U (en) | Special sleeve for dismounting taper hole coupler stop nut | |
| CN216691910U (en) | Shaft coupling of two foundatin vertical water pump | |
| CN219969295U (en) | Wheel with reinforced rim | |
| CN204082644U (en) | A kind of rotor part of sewage MODEL VERTICAL MULTISTAGE PUMP | |
| CN217776876U (en) | Motor bearing assembly and disassembly tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |