CN210281988U - Universal centering device of small-sized horizontal centrifugal pump - Google Patents
Universal centering device of small-sized horizontal centrifugal pump Download PDFInfo
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- CN210281988U CN210281988U CN201920419657.XU CN201920419657U CN210281988U CN 210281988 U CN210281988 U CN 210281988U CN 201920419657 U CN201920419657 U CN 201920419657U CN 210281988 U CN210281988 U CN 210281988U
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- connecting rod
- fixing plate
- coupling
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- pump
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Abstract
The utility model belongs to the technical field of the nuclear power station rotates the equipment maintenance engineering, concretely relates to general centering device of small-size horizontal centrifugal pump. In the utility model, the pump side back wheel is arranged at the left side of the coupling; the motor side back wheel is arranged on the right side of the coupling. The clamp is fixedly arranged on the coupling through a double-head screw and is positioned on the right side of the motor side back wheel. The fixing plate II is fixedly connected with the top of the clamp through a screw; the first fixing plate is fixedly connected with the meter frame through a screw. The second fixing plate is fixedly connected with the second connecting rod; the first fixing plate is fixedly connected with the first connecting rod. The first connecting rod is inserted into the second connecting rod, and the first connecting rod and the second connecting rod are fixed at proper positions through jackscrews. The dial indicator is arranged on the meter frame and used for centering the small horizontal pump. The utility model discloses simple structure, convenient to use satisfies the little pump centering problem that crouches of different models of power plant.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power station rotates the equipment maintenance engineering, concretely relates to general centering device of small-size horizontal centrifugal pump.
Background
The coupling is also called coupling, and is used for firmly connecting a driving shaft and a driven shaft in different mechanisms to rotate together and transmitting mechanical components of movement and torque. Usually, the two halves are combined and fastened to the two shaft ends by a key or a tight fit, and then the two halves are connected in a certain way. The shaft coupling can compensate the offset (including axial offset, radial offset and angular offset) between the motor shaft and the pump shaft caused by inaccurate manufacture and installation, deformation and thermal expansion in work, and the like, and can alleviate impact and absorb vibration. The rotational centers of the two shafts to which the couplings of the pump and the motor are connected should be strictly concentric, and the couplings must be accurately aligned and centered during installation. Otherwise, it will cause great stress on the coupling and will seriously affect the normal operation of the shaft, bearings and other parts on the shaft, even cause vibration or damage to the whole equipment and foundation.
In order to ensure the operation reliability of the rotating equipment, the rotating equipment needs to be subjected to coupling centering in disassembly and overhaul according to the maintenance program specification. The small-sized horizontal centrifugal pump coupling of the power plant consists of a pump side back-rest wheel, a motor side back-rest wheel and a coupling, wherein the small-sized horizontal centrifugal pumps are different in model and different in diameter and length of the coupling.
The magnetic gauge stand used in the centering of the prior small-sized horizontal centrifugal pump coupler is not firmly contacted with the circular arc surface of the back wheel shaft, so that the gauge needle is easy to shake, and the data is not true; the small-size horizontal centrifugal pump's model is different, and the diameter size and the length of shaft coupling are also different, need to match different centering instrument to the shaft coupling centering of different models, and all need make by oneself, need the maintenance personal to clearly know the centering instrument that needs to choose for use to the small-size horizontal centrifugal pump of different models, cause the maintenance process low.
The universal centering device of the small horizontal centrifugal pump has simple and reliable structure and convenient operation; the centering device of the small horizontal centrifugal pump is firmly fixed with the shaft coupling through the clamp, so that the problem of data unreality caused by shaking of a dial indicator can be effectively avoided; the centering device of the small-sized horizontal centrifugal pump adapts to the shaft couplings of different models by adjusting the length of the connecting rod and the fixing position of the guide groove of the fixing plate, so that the centering problem of the small-sized horizontal centrifugal pumps of different models of a power plant is solved.
Disclosure of Invention
The utility model provides a technical problem:
the utility model provides a general centering device of small-size horizontal centrifugal pump, simple structure, convenient to use satisfies the little pump centering problem that crouches of different models of power plant.
The utility model adopts the technical proposal that:
a general centering device of a small-sized horizontal centrifugal pump comprises a dial indicator, a first fixing plate, a meter frame, a first connecting rod, a second fixing plate, a clamp, a double-head screw, a motor side back-rest wheel, a jackscrew, a coupling and a pump side back-rest wheel.
The pump side back wheel is arranged on the left side of the coupling; the motor side back wheel is arranged on the right side of the coupling.
The clamp is fixedly arranged on the coupling through a double-head screw and is positioned on the right side of the motor side back wheel.
The fixing plate II is fixedly connected with the top of the clamp through a screw; the first fixing plate is fixedly connected with the meter frame through a screw.
The second fixing plate is fixedly connected with the second connecting rod; the first fixing plate is fixedly connected with the first connecting rod.
The first connecting rod is inserted into the second connecting rod, and the first connecting rod and the second connecting rod are fixed at proper positions through jackscrews.
The dial indicator is arranged on the gauge stand and used for centering the small horizontal pump.
The utility model has the advantages that:
(1) the utility model provides a universal centering device of a small-sized horizontal centrifugal pump, which has simple structure and convenient use;
(2) the utility model provides a universal centering device of a small-sized horizontal centrifugal pump, which saves the time of selecting tools and improves the maintenance efficiency;
(3) the utility model provides a universal centering device of a small-sized horizontal centrifugal pump, which can manually adjust the adaptation according to the size of a small-sized horizontal centrifugal pump shaft coupling, and can meet the centering problem of small horizontal pumps of different models of power plants;
(4) the utility model provides a general centering device of small-size horizontal centrifugal pump, it is fixed firm with the shaft coupling, effectively solved centering in-process table needle and rocked the problem.
Drawings
FIG. 1 is a schematic structural view of a general centering device of a small-sized horizontal centrifugal pump according to the present invention;
in the figure: 1. a dial indicator; 2. a first fixing plate; 3. a watch frame; 4. a first connecting rod; 5. a second connecting rod; 6. a second fixing plate; 7. a clamp; 8. a double-ended screw; 9. a motor-side back wheel; 10. carrying out top thread; 11. a coupling; 12. pump side back wheel.
Detailed Description
The general centering device of a small-sized horizontal centrifugal pump according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model provides a general centering device of a small-sized horizontal centrifugal pump, which comprises a dial indicator 1, a first fixed plate 2, a meter frame 3, a first connecting rod 4, a second connecting rod 5, a second fixed plate 6, a clamp 7, a double-head screw 8, a motor-side back wheel 9, a top thread 10, a coupling 11 and a pump-side back wheel 12;
the pump-side back wheel 12 is installed on the left side of the coupling 11; the motor side back wheel 9 is arranged on the right side of the coupling 11;
the clamp 7 is fixedly arranged on the coupling 11 through a double-head screw 8 and is positioned on the right side of the motor side back wheel 9;
the second fixing plate 6 is fixedly connected with the top of the clamp 7 through a screw;
the first fixing plate 2 is fixedly connected with the meter frame 3 through a screw;
the second fixing plate 6 is fixedly connected with the second connecting rod 5; the first fixing plate 2 is fixedly connected with the first connecting rod 4;
the connecting rod I4 is inserted into the connecting rod II 5, and the connecting rod I4 and the connecting rod II 5 are fixed at proper positions through the jackscrews 10;
the dial indicator 1 is arranged on the meter frame 3 and used for centering the small horizontal pump.
The present invention has been described in detail with reference to the accompanying drawings and examples, but the present invention is not limited to the above examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can be applied to any other part not described in detail.
Claims (1)
1. The utility model provides a general centering device of small-size horizontal centrifugal pump which characterized in that: the device comprises a dial indicator (1), a first fixing plate (2), a meter frame (3), a first connecting rod (4), a second connecting rod (5), a second fixing plate (6), a clamp (7), a double-head screw (8), a motor side back-rest wheel (9), a jackscrew (10), a coupling (11) and a pump side back-rest wheel (12);
the pump-side back-rest wheel (12) is arranged on the left side of the coupling (11); the motor side back wheel (9) is arranged on the right side of the coupling (11);
the clamp (7) is fixedly arranged on the coupling (11) through a double-head screw (8) and is positioned on the right side of the motor side back wheel (9);
the second fixing plate (6) is fixedly connected with the top of the clamp (7) through a screw; the first fixing plate (2) is fixedly connected with the meter frame (3) through a screw;
the second fixing plate (6) is fixedly connected with the second connecting rod (5); the first fixing plate (2) is fixedly connected with the first connecting rod (4);
the first connecting rod (4) is inserted into the second connecting rod (5), and the first connecting rod (4) and the second connecting rod (5) are fixed through a jackscrew (10);
the dial indicator (1) is arranged on the indicator frame (3) and used for centering the small horizontal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920419657.XU CN210281988U (en) | 2019-03-29 | 2019-03-29 | Universal centering device of small-sized horizontal centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920419657.XU CN210281988U (en) | 2019-03-29 | 2019-03-29 | Universal centering device of small-sized horizontal centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210281988U true CN210281988U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920419657.XU Active CN210281988U (en) | 2019-03-29 | 2019-03-29 | Universal centering device of small-sized horizontal centrifugal pump |
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| CN (1) | CN210281988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894998A (en) * | 2019-03-29 | 2019-06-18 | 江苏核电有限公司 | A kind of general centralising device of horizontal small centrifugal pump |
-
2019
- 2019-03-29 CN CN201920419657.XU patent/CN210281988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894998A (en) * | 2019-03-29 | 2019-06-18 | 江苏核电有限公司 | A kind of general centralising device of horizontal small centrifugal pump |
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