CN112571362A - Nuclear power station condensate pump coupling dismounting device - Google Patents
Nuclear power station condensate pump coupling dismounting device Download PDFInfo
- Publication number
- CN112571362A CN112571362A CN201910936143.6A CN201910936143A CN112571362A CN 112571362 A CN112571362 A CN 112571362A CN 201910936143 A CN201910936143 A CN 201910936143A CN 112571362 A CN112571362 A CN 112571362A
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- CN
- China
- Prior art keywords
- baffle
- nuclear power
- pull rod
- condensate pump
- pair
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- 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.)
- Pending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to a device for detaching a pair of wheels of a condensate pump of a nuclear power station, which comprises a jack (3), a pull rod (4), a baffle (5) and a short circuit (7), wherein one end of the jack (3) is connected with a pump shaft (1) through the short circuit (7), and the other end of the jack is connected with the baffle (5); one end of the pull rod (4) is connected with the baffle (5), the other end of the pull rod is connected with the pair wheel (2), and when the jack (3) works, the pull rod (4) pulls the pair wheel (2) to move along the direction far away from the pump shaft (1). Compared with the prior art, the invention has the advantages of wide application range, convenient operation, labor saving and the like.
Description
Technical Field
The invention relates to the field of maintenance tools for pumps in nuclear power plants, in particular to a wheel dismounting device for a condensate pump in a nuclear power plant.
Background
In the disassembly inspection and maintenance of the condensate pump, the disassembly work of the pair of wheels of the pump is involved. In the conventional wheel dismounting, the dismounting is generally performed by a two-jaw puller, a three-jaw puller or a disc puller. However, due to the problems of short stroke, slipping of jaws and unbalance loading of the conventional puller, the structural size of the on-site paired wheel and the installation form of the paired wheel, the conventional puller cannot meet the disassembly requirement at all, and the paired wheel cannot be normally disassembled.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a wheel detaching device for a condensate pump of a nuclear power station.
The purpose of the invention can be realized by the following technical scheme:
a device for detaching a pair wheel of a condensate pump of a nuclear power station comprises a jack, a pull rod, a baffle and a short circuit, wherein one end of the jack is connected with a pump shaft through the short circuit, and the other end of the jack is connected with the baffle; one end of the pull rod is connected with the baffle, the other end of the pull rod is connected with the pair wheel, and when the jack works, the pull rod pulls the pair wheel to move along the direction far away from the pump shaft.
Preferably, the baffle is provided with four slotted holes, and one end of the pull rod penetrates through the slotted holes and is fixed on the baffle.
Preferably, the dimensions of said slotted holes vary according to the different types of pairs of wheels.
Preferably, the tool further comprises a locking nut, and the pull rod is fixed with the baffle plate through the locking nut.
Preferably, the locking nuts are arranged on the pull rod and screwed at the two ends of the baffle, and the parallelism between the baffle and the pair of wheels is adjusted by adjusting the locking nuts.
Preferably, the short joint is connected with the shaft head of the pump shaft through a screw thread.
Preferably, the pull rod is connected with the pair of wheels through screw threads.
Preferably, the dimensions of the said short and the length and diameter of the pull rod vary according to the different types of pairs of wheels.
Preferably, the baffle is made of No. 45 steel materials by adopting a machining process.
Preferably, the short circuit is made of No. 45 steel materials by adopting a machining process.
Compared with the prior art, the invention has the following advantages:
1. the application range is wide: through length and width size, the size of short circuit and the length and the diameter of pull rod that change the baffle slotted hole, applicable in different types wheel dismantlement.
2. Convenient operation, laborsaving, efficient: in the drawing process, the special tool can realize the one-time drawing of the paired wheels only by pulling the crank of the jack.
3. The processing and manufacturing cost is low: the special tool has the advantages of low price of required materials, simple manufacturing and processing technology and repeated use.
4. The operation is convenient and quick: the special tool has the advantages of simple structure, small volume, light weight, quick installation and use and convenient carrying.
Drawings
FIG. 1 is a schematic view of the tool structure of the present invention.
Fig. 2 is a schematic view of the structure of the baffle plate of the present invention.
Fig. 3 is a schematic diagram of a short-circuit structure according to the present invention.
Wherein 1 is a pump shaft, 2 is a pair wheel, 3 is a jack, 4 is a pull rod, 5 is a baffle, 6 is a lock nut, 7 is a short joint, 11 is a shaft head, and 51 is a slotted hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The working principle of the invention is as follows: when the screw jack works, the crank is pulled, the ratchet wheel is shifted through the ratchet, the bevel gear is driven to rotate, and the screw rod rotates; when the screw rod rotates, the sleeve rises along the guide key to act on the baffle, and meanwhile, the pull rod is driven to pull the paired wheels. When the handle is pulled, the sleeve rises, the pull rod drives the pair wheel to correspondingly retreat, and the pair wheel is pulled out.
As shown in fig. 1, the device for detaching the coupling of the condensate pump of the nuclear power station comprises a jack 3, a pull rod 4, a baffle 5 and a short circuit 7, wherein one end of the jack 3 is connected with a pump shaft 1 through the short circuit 7, and the other end of the jack is connected with the baffle 5; one end of the pull rod 4 is connected with the baffle 5, the other end of the pull rod is connected with the pair wheel 2, and when the jack 3 works, the pull rod 4 pulls the pair wheel 2 to move along the direction far away from the pump shaft 1.
As shown in fig. 2, the baffle 5 is provided with four slots 51, and one end of the pull rod 4 passes through the slots 51 and is fixed on the baffle 5.
The dimensions of said slotted hole 51 vary according to the different types of wheel 2.
The tool further comprises a locking nut 6, and the pull rod 4 is fixed with the baffle 5 through the locking nut 6. The locking nuts 6 are arranged on the pull rod 4 and screwed at two ends of the baffle 5, and the parallelism between the baffle 5 and the pair of wheels 2 is adjusted by adjusting the locking nuts 6.
As shown in fig. 3, the short joint 7 is connected with the shaft head 11 of the pump shaft 1 through screw threads. The pull rod 4 is connected with the pair of wheels 2 through screw threads.
The dimensions of said short circuit 7 and the length and diameter of the tie rod 4 vary according to the different types of wheels 2.
The baffle 5 is made of No. 45 steel materials by adopting a machining process. The short circuit 7 is made of No. 45 steel materials by adopting a machining process.
The use method of the tool comprises the following steps:
a. the short joint 7 is attached to the stub shaft 11 and tightened.
b. Four M16 tie rods 4 are respectively fitted into 4 threaded holes of the pair of wheels 2 and tightened.
c. The screw jack 3 is mounted on the short joint 7, and the sleeve end of the screw jack 3 is aligned with the counter bore of the short joint 7.
d. Four lock nuts 6 are respectively arranged on the four pull rods 4 and screwed to the base lower than the jack 3.
e. The baffle 5 is passed through the tie rod 4 and against the jack 3, aligned with the four slots 51 in the baffle 5.
f. Eight washers and lock nuts 6 are mounted on the four tie rods 4, respectively.
g. The parallelism of the baffle 5 and the pair of wheels 2 is adjusted by tightening the lock nuts 6 on both sides of the baffle 5.
h. When the parallelism is adjusted, the crank of the jack 3 can be pulled to pull out the pair wheel 2.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A device for detaching a pair of wheels of a condensate pump of a nuclear power station is characterized by comprising a jack (3), a pull rod (4), a baffle (5) and a short circuit (7), wherein one end of the jack (3) is connected with a pump shaft (1) through the short circuit (7), and the other end of the jack is connected with the baffle (5); one end of the pull rod (4) is connected with the baffle (5), the other end of the pull rod is connected with the pair wheel (2), and when the jack (3) works, the pull rod (4) pulls the pair wheel (2) to move along the direction far away from the pump shaft (1).
2. The wheel dismounting device of the condensate pump of the nuclear power plant as claimed in claim 1, wherein the baffle (5) is provided with four slotted holes (51), and one end of the pull rod (4) passes through the slotted holes (51) and is fixed on the baffle (5).
3. The apparatus for detaching a condensate pump from a nuclear power plant according to claim 2, wherein the size of the slotted hole (51) is changed according to different types of coupling wheels (2).
4. The wheel dismounting device for the condensate pump of the nuclear power plant as claimed in claim 1, wherein the tool further comprises a lock nut (6), and the pull rod (4) is fixed with the baffle (5) through the lock nut (6).
5. The wheel dismounting device for the condensate pump of the nuclear power plant as recited in claim 4, characterized in that the lock nuts (6) are arranged on the pull rod (4) and screwed at the two ends of the baffle (5), and the parallelism between the baffle (5) and the wheel (2) is adjusted by adjusting the lock nuts (6).
6. The wheel dismounting device of the condensate pump of the nuclear power plant as recited in claim 1, characterized in that the short joint (7) is connected with the shaft head (11) of the pump shaft (1) through a screw thread.
7. The apparatus for disassembling a pair of wheels of a condensate pump of a nuclear power plant as claimed in claim 1, wherein the tie rod (4) is screwed to the pair of wheels (2).
8. Device for detaching a pair of wheels from a condensate pump of a nuclear power plant according to claim 1, characterized in that the dimensions of said short-circuit (7) and the length and diameter of the tie-rod (4) vary according to the type of wheel (2) used.
9. The device for detaching the pair of wheels of the condensate pump of the nuclear power plant as claimed in claim 1, wherein the baffle (5) is made of No. 45 steel by a machining process.
10. The device for detaching the coupling of the condensate pump of the nuclear power plant as claimed in claim 1, wherein the short joint (7) is made of No. 45 steel by a machining process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936143.6A CN112571362A (en) | 2019-09-29 | 2019-09-29 | Nuclear power station condensate pump coupling dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936143.6A CN112571362A (en) | 2019-09-29 | 2019-09-29 | Nuclear power station condensate pump coupling dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112571362A true CN112571362A (en) | 2021-03-30 |
Family
ID=75110776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910936143.6A Pending CN112571362A (en) | 2019-09-29 | 2019-09-29 | Nuclear power station condensate pump coupling dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112571362A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113695888A (en) * | 2021-08-30 | 2021-11-26 | 杭州中能汽轮动力有限公司 | Impeller dismounting device based on cantilever centrifugal compressor and use method thereof |
| CN116766115A (en) * | 2023-08-24 | 2023-09-19 | 江苏沪宝船舶机械有限公司 | Flange dismounting device |
-
2019
- 2019-09-29 CN CN201910936143.6A patent/CN112571362A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113695888A (en) * | 2021-08-30 | 2021-11-26 | 杭州中能汽轮动力有限公司 | Impeller dismounting device based on cantilever centrifugal compressor and use method thereof |
| CN116766115A (en) * | 2023-08-24 | 2023-09-19 | 江苏沪宝船舶机械有限公司 | Flange dismounting device |
| CN116766115B (en) * | 2023-08-24 | 2023-10-20 | 江苏沪宝船舶机械有限公司 | Flange dismounting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210330 |
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| WD01 | Invention patent application deemed withdrawn after publication |