CN207669223U - A kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator - Google Patents
A kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator Download PDFInfo
- Publication number
- CN207669223U CN207669223U CN201721809768.9U CN201721809768U CN207669223U CN 207669223 U CN207669223 U CN 207669223U CN 201721809768 U CN201721809768 U CN 201721809768U CN 207669223 U CN207669223 U CN 207669223U
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- Prior art keywords
- pin
- jack
- lead screw
- gasket
- pulling
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Abstract
A kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator, including hydraulic jack top component, stop sleeve, lead screw of pulling pin, baffle, gasket, fastening nut；The hydraulic jack top component includes jack, hydraulic cylinder, the hydraulic hose for being connected to jack and hydraulic cylinder, and the jack is equipped with through-hole, and the aperture of through-hole is more than lead screw outside diameter of pulling pin；The stop sleeve has the cavity that aperture is more than lead screw outside diameter of pulling pin, and the notch of perforation is equipped between both ends of the surface；The lead screw of pulling pin is through at stop sleeve, the through-hole of jack, baffle, gasket successively；The stop sleeve is fitted closely with jack；It is described pull pin lead screw respectively with baffle and gasket clearance fit；The baffle and gasket fit closely；The fastening nut set, which locks in, to be pulled pin on lead screw and is fitted closely with gasket.The present apparatus is simple in structure, compact, easy to operate, and working strength of pulling pin can be greatly reduced, and improves working efficiency of pulling pin, and saves the cost of overhaul.
Description
Technical field
The utility model belongs to technical field of hydroelectric generation, is related to hydro-electric power generating equipment maintenance dismounting, especially a kind of use
In the pin pulling out device of the dismounting big shaft flange attachment pegs of hydrogenerator.
Background technology
In hydroelectric field, to ensure that hydro-generating Unit is stable and the production safety that generates electricity, Hydropower Plant is not
Timing maintenance is a routine work.In maintenance process, the big shaft flange attachment pegs of hydrogenerator and other components connection are dismantled
Outbound is essential link, and the big shaft flange of each hydrogenerator is equipped with 120 attachment pegs of 8-12 root Φ 80- Φ, and
Attachment pegs and pin hole are interference fits, cooperation is close, frictional force is big, dismantlement work amount and great work intensity；Simultaneously because water power
It stands bulb-type tubular hydro set design feature, working space is more narrow, and the dismounting of flange attachment pegs is very inconvenient.
It is typically now to use parallel double jack type pin pulling out device in this field：The base end of two jack is put down respectively
Row withstands on the both sides of one pin hole of end face of flange, and the piston ends of two jack withstands on a 300mm*200mm*20mm steel plates, steel plate with
The fastening connection of one lead screw one end, the other end of lead screw couple with attachment pegs inner hole thread, the piston driving steel plate movement of jack,
Steel plate drive lead screw, to by couple with lead screw together attachment pegs extraction.Existing method and device of pulling pin can incite somebody to action really
Attachment pegs are extracted, but are had the following disadvantages：1, parallel double jack type pin pulling out device need two groups of people while operating jack,
Such as asynchronous, pin hole both sides unbalance stress, cause direction of pull suffered by attachment pegs and attachment pegs central axis not parallel, it is easy
Attachment pegs and pin hole are caused to pull, lead screw is bent, steel plate deformed, the follow-up difficulty of pulling pin of increase；2, this device takes up space larger,
Due to the limitation of Hydropower Plant working space, it is inconvenient for operation 3, pull pin during, pull away the moment of pin hole in attachment pegs, join
Outbound and jack are easy to fall, and need more people's auxiliary operations, cost of labor higher.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of for dismantling the big shaft flange connection of hydrogenerator
The pin pulling out device of outbound.
Technical solution used by the utility model is：It is a kind of to be used to dismantle pulling out for the big shaft flange attachment pegs of hydrogenerator
Pin assembly, including hydraulic jack top component, stop sleeve, lead screw of pulling pin, baffle, gasket, fastening nut；The hydraulic jack
Component includes jack, hydraulic cylinder, the hydraulic hose for being connected to jack and hydraulic cylinder, and the jack is equipped with through-hole, through-hole
Aperture is more than lead screw outside diameter of pulling pin；Cavity of the stop sleeve with aperture more than lead screw outside diameter of pulling pin, two
The notch of perforation is equipped between end face, notch aperture size is more than lead screw outside diameter of pulling pin；The lead screw of pulling pin is through at successively
Stop sleeve, the through-hole of jack, baffle, gasket；The stop sleeve is fitted closely with jack；The lead screw difference of pulling pin
With baffle and gasket clearance fit；The baffle and gasket fit closely；The fastening nut set lock in pull pin on lead screw and with
Gasket fits closely；The stop sleeve excircle is equipped with hanging ring.
The utility model has the beneficial effects that：Since this device only needs a jack job, the drawing suffered by attachment pegs
Force direction and attachment pegs central axis are in the same direction, attachment pegs and pin hole will not be caused to pull, pull pin lead screw bending, steel plate deformed etc. are asked
Topic, and be easier to extract attachment pegs；Due to offering the notch of perforation between stop sleeve both ends of the surface, notch aperture size is big
In lead screw outside diameter of pulling pin, stop sleeve can directly be inserted in lead screw of pulling pin by notch, and operation is more convenient；Due to support
Excircle of sleeve week is equipped with hanging ring, pulls away the moment of pin hole in attachment pegs, attachment pegs and jack are not fallen out；This equipment mechanism is tight
It gathers, take up space less, it is not easy to be limited by Hydropower Plant working space.By can not only be dropped significantly using this device
The working strength of the low dismounting big shaft flange attachment pegs of hydrogenerator, and working efficiency can be improved, save the cost of overhaul.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for dismantling the pin pulling out device of the big shaft flange attachment pegs of hydrogenerator；
Detailed description of main elements：1- attachment pegs；2- stop sleevees；3- pulls pin lead screw；4- jack；5- through-holes；6-
Baffle；7- gaskets；8- fastening nuts；9- pistons；10- operation handles；11- hydraulic cylinders；12- hydraulic hoses；13- is hung
Ring；14- notches.
Specific implementation mode
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
The embodiments of the present invention, as shown in Figure 1, a kind of for dismantling pulling out for the big shaft flange attachment pegs of hydrogenerator
Pin assembly, including hydraulic jack top component, stop sleeve 2, lead screw 3 of pulling pin, baffle 6, gasket 7, fastening nut 8；The hydraulic pressure
Jack assembly includes jack 4, hydraulic cylinder 11, the hydraulic hose 12 for being connected to jack 4 and hydraulic cylinder 11, the jack 4
Equipped with through-hole 5, the aperture of through-hole 5 is more than 3 outside diameter of lead screw of pulling pin；There is the stop sleeve 2 aperture to be more than lead screw 3 of pulling pin
The cavity of outside diameter is equipped with the notch 14 of perforation between both ends of the surface, and it is straight that 14 aperture size of notch is more than 3 outer circle of lead screw of pulling pin
Diameter；The lead screw 3 of pulling pin is through at stop sleeve 2, the through-hole 5 of jack 4, baffle 6, gasket 7 successively；The stop sleeve 2 with
Jack 4 fits closely；It is described pull pin lead screw 3 respectively with 7 clearance fit of baffle 6 and gasket；The baffle 6 and gasket 7 are close
Fitting；8 sets of the fastening nut, which locks in, to be pulled pin on lead screw 3 and is fitted closely with gasket 7；2 excircle of the stop sleeve is equipped with
Hanging ring 13.
The present apparatus course of work is：When attachment pegs 1 are pulled out in preparation, stop sleeve 2 is suspended to by hanging ring 13 on overhead traveling crane, support
One end face of sleeve 2 withstands on the end face of flange equipped with attachment pegs 1, is through at stop sleeve 2, the through-hole 5 of jack 4, gear successively
Plate 6, gasket 7 lead screw 3 of pulling pin couple with the inner hole thread of attachment pegs 1, fastening nut 8 is screwed, by the operation of pressure cylinder 11
Handle 10, piston 9 slowly stretch out, and withstand baffle 6, and baffle 6 is limited by fastening nut 8, drive the movement of lead screw 3 of pulling pin, thus will
It is extracted with the attachment pegs 1 for 3 thread connection of lead screw of pulling pin.
Since this device only needs a jack job, the direction of pull suffered by attachment pegs 1 and attachment pegs central axis
In the same direction, attachment pegs 1 and pin hole will not be caused to pull, lead screw 3 of pulling pin bending, steel plate deformed the problems such as, and be easier attachment pegs 1
It extracts；Due to offering the notch 14 of perforation between 2 both ends of the surface of stop sleeve, 14 aperture size of notch, which is more than, pulls pin outside lead screw 3
Circular diameter, stop sleeve 2 can directly be inserted in lead screw 3 of pulling pin by notch 14, and operation is more convenient；Outside due to stop sleeve 2
Circumference is equipped with hanging ring 13, pulls away the moment of pin hole in attachment pegs 1, attachment pegs 1 and jack 4 are not fallen out.This equipment mechanism is tight
It gathers, take up space less, it is not easy to be limited by Hydropower Plant working space；Using this improved pin pulling out device, originally
The work of pulling pin for needing 3-4 people to operate, now only needs 1-2 people；It originally pulls out an attachment pegs and at least needs a hour, now
It only needs ten minutes or so, not only greatly reduces the working strength of the dismounting big shaft flange attachment pegs of hydrogenerator, improve and pull out
Working efficiency is sold, and has saved the cost of overhaul.Currently, the present apparatus works well in our company's extensive use, and collecting
It is gradually promoted in group's range.
Claims (2)
1. a kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator, it is characterised in that：Including hydraulic jack
Top component, stop sleeve (2), lead screw of pulling pin (3), baffle (6), gasket (7), fastening nut (8)；The hydraulic jack top component
Including jack (4), hydraulic cylinder (11), the hydraulic hose (12) for being connected to jack (4) and hydraulic cylinder (11), the jack
(4) it is equipped with through-hole (5), the aperture of through-hole (5) is more than lead screw (3) outside diameter of pulling pin；The stop sleeve (2) has aperture big
The notch (14) of perforation is equipped between the cavity of lead screw of pulling pin (3) outside diameter, both ends of the surface, notch (14) aperture size is big
In lead screw of pulling pin (3) outside diameter；The lead screw of pulling pin (3) be through at successively stop sleeve (2), jack (4) through-hole (5),
Baffle (6), gasket (7)；The stop sleeve (2) fits closely with jack (4)；The lead screw of pulling pin (3) respectively with baffle
(6) and gasket (7) clearance fit；The baffle (6) and gasket (7) fit closely；Fastening nut (8) set locks in silk of pulling pin
It is fitted closely on bar (3) and with gasket (7).
2. a kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator according to claim 1, special
Sign is：Stop sleeve (2) excircle is equipped with hanging ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809768.9U CN207669223U (en) | 2017-12-21 | 2017-12-21 | A kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809768.9U CN207669223U (en) | 2017-12-21 | 2017-12-21 | A kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207669223U true CN207669223U (en) | 2018-07-31 |
Family
ID=62969924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721809768.9U Expired - Fee Related CN207669223U (en) | 2017-12-21 | 2017-12-21 | A kind of pin pulling out device for dismantling the big shaft flange attachment pegs of hydrogenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207669223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102509A (en) * | 2021-11-02 | 2022-03-01 | 中船澄西船舶修造有限公司 | Pump shaft disassembling tool |
-
2017
- 2017-12-21 CN CN201721809768.9U patent/CN207669223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102509A (en) * | 2021-11-02 | 2022-03-01 | 中船澄西船舶修造有限公司 | Pump shaft disassembling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20181221 |