CN201891644U - Improvement of vertical multi-stage pump coupler - Google Patents
Improvement of vertical multi-stage pump coupler Download PDFInfo
- Publication number
- CN201891644U CN201891644U CN 201020598961 CN201020598961U CN201891644U CN 201891644 U CN201891644 U CN 201891644U CN 201020598961 CN201020598961 CN 201020598961 CN 201020598961 U CN201020598961 U CN 201020598961U CN 201891644 U CN201891644 U CN 201891644U
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- Prior art keywords
- pump
- screw
- sleeve
- improvement
- shaft
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- Expired - Fee Related
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Abstract
The utility model relates to improvement of a vertical multi-stage pump coupler, which comprises a pump end coupler, a motor end coupler, a pump shaft, a motor shaft and a key, wherein the pump end coupler is connected with the pump shaft by the aid of the key and a bolt, and the motor end coupler is connected with the motor shaft by the aid of another bolt. The improvement of a vertical multi-stage pump coupler is characterized in that the improvement is further provided with a connecting component for connecting the pump shaft with the motor shaft, the connecting component includes a screw and a sleeve with a bottom at one end and an opening at the other end, internal threads are arranged on the inner lateral wall of the sleeve, a through threaded hole is arranged in the middle of the bottom surface of the sleeve, the screw-in direction of the threaded hole is opposite to the direction of the opening of the sleeve, and the screw penetrates into the threaded hole on the sleeve. The improvement of a vertical multi-stage pump coupler has the advantages of simple structure, convenience in processing, and capabilities of adjusting the distance between the motor shaft and the pump shaft by adjusting the screw-in length of threads of the screw in the connecting component so as to arrange a pump rotor component at a proper position and ensure stability and reliability of a pump in operation.
Description
Technical field
The utility model relates to a kind of coupling parts, particularly a kind of improvement of MODEL VERTICAL MULTISTAGE PUMP coupling.
Background technique
Coupling modular construction such as Fig. 1 at existing vertical multi-stage pipeline mounted pump, pump shaft 11 and motor shaft 12 are fixed by bolt 15 and straight pin 16 rigidity by two half-cylindrical coupling sheets 13, pump shaft 11 the fixing of Vertical direction and and motor shaft 12 between distance decide by the Cock screw 14 of motor 12 ends on the coupling 13 fully, there is following shortcoming in this structure: when 1, pump assembles, rotor part promotes difficulty, basically by manual, when the pump stage number increases, when weight increases, promote more difficult.So be difficult to guarantee impeller or bearing in the desired position of design, if pump shaft is too by causing impeller port ring place and stage casing assembly to rub down, if can make the tension of mechanical seal pressure too on the upper side again, mechanical seal is fragile.2, pump operation time one length, coupling is loosening easily, thereby pump shaft is glided, and influences the operation of pump.So the technician must be improved by vertical multistage pipeline mounted pump coupling parts, reaches using effect better.
Summary of the invention
The purpose of this utility model is to the improvement on a kind of MODEL VERTICAL MULTISTAGE PUMP coupling modular construction, has solved the deficiencies in the prior art.
The purpose of this utility model is achieved in that a kind of improvement of MODEL VERTICAL MULTISTAGE PUMP coupling, include: pump end coupling, the motor side coupling, pump shaft, motor shaft, key, wherein, pump end coupling is by key and bolted pump axle, the motor side coupling connects motor shaft by bolt, it is characterized in that: the connected element that also has a connection pump shaft and motor shaft, connected element comprises that a screw and has an end end is arranged, the sleeve of the other end opening, on the described sleeve madial wall internal thread is arranged, have a tapped hole that runs through mutually in the centre of sleeve bottom surface, the screw-in direction of tapped hole is opposite with the opening direction of sleeve, and described screw passes in the tapped hole on the sleeve.
Internal thread on the described connected element middle sleeve is meshed with outside thread on the pump shaft end, and the screw in the connected element screws in the tapped hole on the motor shaft end face.
Internal thread on the described connected element middle sleeve is meshed with outside thread on the motor shaft end, and the screw in the connected element screws in the tapped hole on the pump shaft end face.
Described screw is a hexagon socket countersunk flat cap head screw.
The utility model has the advantages that: simple in structure, easy to process, can regulate distance between motor shaft and pump shaft by the screw-in length of screw thread in the connected element, make the pump rotor parts in place, stability, reliability when guaranteeing pump operation with this.
Description of drawings
Accompanying drawing 1 is a structural representation of the prior art.
Accompanying drawing 2 is structural representations of the present utility model.
Below in conjunction with drawings and Examples the utility model is elaborated.
Embodiment
Among Fig. 2, a kind of improvement of MODEL VERTICAL MULTISTAGE PUMP coupling, include: pump end coupling 4, motor side coupling 9, pump shaft 1, motor shaft 2, key 3, wherein, pump end coupling 4 is connected pump shaft 1 by key 3 with bolt 6, motor side coupling 9 connects motor shaft 2 by bolt 6, it is characterized in that: the connected element 10 that also has a connection pump shaft 1 and motor shaft 2, connected element 10 comprises that a screw 8 and has an end end is arranged, the sleeve 7 of the other end opening, on described sleeve 7 madial walls internal thread is arranged, have a tapped hole that runs through mutually in the centre of sleeve 7 bottom surfaces, the screw-in direction of tapped hole is opposite with the opening direction of sleeve 7, and described screw 8 passes in the tapped hole on the sleeve.
Internal thread on described connected element 10 middle sleeves 7 is meshed with the outside thread on pump shaft 1 end, the tapped hole that the screw 8 in the connected element 10 screws on motor shaft 2 end faces.
Internal thread on described connected element 10 middle sleeves 7 is meshed with the outside thread on motor shaft 2 ends, the tapped hole that the screw 8 in the connected element 10 screws on pump shaft 1 end face.
The usage mode of connected element 10 has two kinds, a kind of be jacket casing 7 on motor shaft 2, another kind be jacket casing 7 on pump shaft 1, can according to the design specific requirement select usage mode.
Described screw 8 is a hexagon socket countersunk flat cap head screw.
When present embodiment uses, with a sleeve that processes 7 and a screw 8(hexagon socket countersunk flat cap head screw) connected element 10 of composition, sleeve 8 connects outside thread on the pump shaft 1, the internal thread that screw 8 connects on the motor shaft 2, can come the screw-in length of adjusting screw screw thread by turnbarrel 8, to control motor shaft 2 and pump shaft 1 in axial distance.After axial distance reaches the optimum rotation position,, use the locking nut tightening at last with pump end coupling 4,9 pairings of motor side coupling.
Below only expressed mode of execution of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
The utility model advantage is: simple in structure, easy to process, can regulate distance between motor shaft and pump shaft by the screw-in length of screw thread in the connected element, and make the pump rotor parts in place with this, stability, reliability when guaranteeing pump operation.
Claims (4)
1. the improvement of a MODEL VERTICAL MULTISTAGE PUMP coupling, include: pump end coupling, the motor side coupling, pump shaft, motor shaft, key, wherein, pump end coupling is by key and bolted pump axle, the motor side coupling connects motor shaft by bolt, it is characterized in that: the connected element that also has a connection pump shaft and motor shaft, connected element comprises that a screw and has an end end is arranged, the sleeve of the other end opening, on the described sleeve madial wall internal thread is arranged, have a tapped hole that runs through mutually in the centre of sleeve bottom surface, the screw-in direction of tapped hole is opposite with the opening direction of sleeve, and described screw passes in the tapped hole on the sleeve.
2. the improvement of a kind of MODEL VERTICAL MULTISTAGE PUMP coupling according to claim 1 is characterized in that: the internal thread on the described connected element middle sleeve is meshed with outside thread on the pump shaft end, and the screw in the connected element screws in the tapped hole on the motor shaft end face.
3. the improvement of a kind of MODEL VERTICAL MULTISTAGE PUMP coupling according to claim 1 is characterized in that: the internal thread on the described connected element middle sleeve is meshed with outside thread on the motor shaft end, and the screw in the connected element screws in the tapped hole on the pump shaft end face.
4. the improvement of a kind of MODEL VERTICAL MULTISTAGE PUMP coupling according to claim 1 is characterized in that: described screw is a hexagon socket countersunk flat cap head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020598961 CN201891644U (en) | 2010-11-10 | 2010-11-10 | Improvement of vertical multi-stage pump coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020598961 CN201891644U (en) | 2010-11-10 | 2010-11-10 | Improvement of vertical multi-stage pump coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891644U true CN201891644U (en) | 2011-07-06 |
Family
ID=44221119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020598961 Expired - Fee Related CN201891644U (en) | 2010-11-10 | 2010-11-10 | Improvement of vertical multi-stage pump coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780602A (en) * | 2021-02-01 | 2021-05-11 | 上海凯泉泵业（集团）有限公司 | Pump shaft structure |
-
2010
- 2010-11-10 CN CN 201020598961 patent/CN201891644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780602A (en) * | 2021-02-01 | 2021-05-11 | 上海凯泉泵业（集团）有限公司 | Pump shaft structure |
| CN112780602B (en) * | 2021-02-01 | 2024-05-17 | 上海凯泉泵业（集团）有限公司 | Pump shaft structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20121110 |