CN209465936U - A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device - Google Patents
A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device Download PDFInfo
- Publication number
- CN209465936U CN209465936U CN201920034663.3U CN201920034663U CN209465936U CN 209465936 U CN209465936 U CN 209465936U CN 201920034663 U CN201920034663 U CN 201920034663U CN 209465936 U CN209465936 U CN 209465936U
- Authority
- CN
- China
- Prior art keywords
- center
- centering device
- pole
- guide frame
- hydroelectric generating
- 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
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering devices, it includes bottom fixed guide frame, the top center of the bottom fixed guide frame, which rotatably supports, is equipped with center-pole, more guide rods are uniformly vertically fixed in the periphery of center-pole, top fixed guide frame is installed in the top braces of guide rod, the top of the center-pole passes through the centre bore of top fixed guide frame；The center-pole is divided into three-stage structure, including bottom thread section, middle part optical axis section and screw top section；The uniformly distributed double link pushing mechanism for opening and shrinking of multiple groups is provided between bottom thread section and screw top section.This centering device efficiently can accurately realize rotor lower flange and guide hole works to the heart when axis shaft coupling of generator lower end, avoid the damage in part of appliance installation process, can also increase substantially working efficiency, mitigate the labor intensity of staff.
Description
Technical field
The utility model relates to a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering devices, belong to water
Turbine generator group assists mounting technique field.
Background technique
The guide hole of certain model Francis hydroturbine generator set rotor lower flange and generator lower end axis and shaft coupling guide
Shaft hole matching is clearance fit, and fit clearance section is 0.015~0.09mm, and this gap cooperation is too small, is wanted to cooperation precision
Ask quite high.When unit returns dress, if rotor lower flange and the guide hole of generator lower end axis are bad to the heart, shaft coupling guide is very
Hardly possible is fitted into pin hole, if squeezing by force, there are deviations, it may appear that guide is stuck the pin hole the case where, to the height of pin hole and guide
It causes to damage in precision cylindrical surface.
Conventional solution is high pressure oil unloading system to be put into, in advance to the position feelings in guide hole when returning dress guide
Condition is observed, and determines the pushing direction of rotor, and borrow two jack, and one is radially supported on shaft link bolt, and one
It is circumferentially supported on shaft link bolt, while exerting a force to jack, allow rotor to rotate, make its lower flange guide hole and generator as far as possible
The guide hole of lower end axis to just, due to high pressure oil unloading system manipulation and in the rotor the intracorporal operation of the heart need while cooperating
Good, and the force of jack is also difficult just in place, this allows for the difficulty increasing that guide hole work to the heart, also not to heart precision
Height makes whole process that contingency be presented, causes working efficiency low.
Utility model content
The utility model aim is to provide a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device,
This centering device efficiently can accurately realize rotor lower flange and guide hole works to the heart when axis shaft coupling of generator lower end, keep away
Exempt from the damage in part of appliance installation process, working efficiency can also be increased substantially, mitigates the labor intensity of staff.
In order to realize above-mentioned technical characteristic, purpose of the utility model is realized as follows: a kind of large-scale mixed water
Turbine generator group rotor coupled axle-pin sets of holes centering device, it includes bottom fixed guide frame, the top of the bottom fixed guide frame
The support of portion's central rotatable is equipped with center-pole, is uniformly vertically fixed more guide rods in the periphery of center-pole, is being oriented to
The top braces of bar are equipped with top fixed guide frame, and the top of the center-pole passes through the centre bore of top fixed guide frame；
The center-pole is divided into three-stage structure, including bottom thread section, middle part optical axis section and screw top section；On bottom thread section and top
The uniformly distributed double link pushing mechanism for opening and shrinking of multiple groups is provided between portion's thread segment.
The contact position of the top fixed guide frame and center-pole is equipped with wear-resistant sleeve.
The double link pushing mechanism includes the first nut set and the second nut set；The first nut set is passed by screw thread
In bottom thread section, the second nut set is fitted in screw top section dynamic engagement sleeves by screw-driven；?
First connecting rod is hinged with by the first pin shaft on the lateral wall of first nut set, the other end of the first connecting rod passes through the second pin
Axis is hinged on the first hinged seat, and first hinged seat is fixed on the inner wall of telescopic arm；In the lateral wall of the second nut set
Upper to be hinged with second connecting rod by third pin shaft, the other end of the second connecting rod is hinged on the second hinged seat by the 4th pin shaft
On, second hinged seat is fixed on the inner wall of telescopic arm.
The bottom of the first nut set is provided with first step plate, and the outer rim of the first step plate is uniformly machined with more
A through-hole, the through-hole are slidably matched with guide rod composition.
The top of the second nut set is provided with second step plate, and the outer rim of the second step plate is uniformly machined with more
A through-hole, the through-hole are slidably matched with guide rod composition.
The bottom thread section and screw top section it is oppositely oriented.
The telescopic arm shares three groups, and the periphery of uniformly distributed centrally disposed bar.
The bottom fixed guide frame uses threaded stud structure.
The utility model has the advantages that:
1, with the rotor coupled axle-pin sets of holes centering device, rotor lower flange and lower end pivot pin sets of holes can accurately be realized
To the heart, guide can be successfully fitted into guide hole, the damage risk in part of appliance installation process is avoided.
2, previous jack adjustment mode is improved with the device, avoiding work up and down uncoordinated leads to device to hole too
The problem of crossing or device to hole is insufficient, and having to be adjusted with jack repeatedly, increases substantially working efficiency.
3, the device has stronger generalization, and theoretical method is applicable to any have flange pin hole to the equipment of heart requirement
In installment work, pin hole is fast implemented to the heart.
4, by using the center-pole of above structure, the bottom thread section and screw top section for using reversed rotation direction are simultaneously
It is driven in the reverse direction corresponding first nut set and the second nut set, and then passes through first connecting rod driving telescopic arm synchronous with second connecting rod
It is opened, and then realizes centering operation.
5, the above-mentioned telescopic arm of the driving that can be synchronized by using the uniformly distributed double link pushing mechanism of multiple groups, and then realize
Centering operation.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the utility model main view.
Fig. 2 is the utility model three-body figure.
In figure: bottom fixed guide frame 1, center-pole 2, bottom thread section 3, the first nut cover the 4, first pin shaft 5, first and connect
Bar 6, the second pin shaft 7, the first hinged seat 8, middle part optical axis section 9, screw top section 10, guide rod 11, telescopic arm 12, second are hinged
Seat the 13, the 4th pin shaft 14, second connecting rod 15, third pin shaft 16, the second nut set 17, top fixed guide frame 18, wear-resistant sleeve 19,
First step plate 20, second step plate 21.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
Embodiment 1:
A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device referring to FIG. 1-2, it includes bottom
Portion's fixed guide frame 1, the top center of the bottom fixed guide frame 1, which rotatably supports, is equipped with center-pole 2, in center-pole
2 periphery is uniformly vertically fixed more guide rods 11, is equipped with top fixed guide frame 18 in the top braces of guide rod 11,
The top of the center-pole 2 passes through the centre bore of top fixed guide frame 18；The center-pole 2 divides for three-stage structure, including bottom
Portion's thread segment 3, middle part optical axis section 9 and screw top section 10；Multiple groups are provided between bottom thread section 3 and screw top section 10
The uniformly distributed double link pushing mechanism for opening and shrinking.It can efficiently accurately by using the centering device of above structure
It realizes rotor lower flange and guide hole works to the heart when axis shaft coupling of generator lower end, avoid in part of appliance installation process
Damage, can also increase substantially working efficiency, mitigate the labor intensity of staff.
Further, the contact position of the top fixed guide frame 18 and center-pole 2 is equipped with wear-resistant sleeve 19.By adopting
Wearability is enhanced with wear-resistant sleeve 19.
Further, the double link pushing mechanism includes the first nut set 4 and the second nut set 17；First nut
Through screw-driven engagement sleeves in bottom thread section 3, the second nut set 17 is fitted to set 4 by screw-driven
In screw top section 10；First connecting rod 6 is hinged with by the first pin shaft 5 on the lateral wall of the first nut set 4, described first connects
The other end of bar 6 is hinged on the first hinged seat 8 by the second pin shaft 7, and first hinged seat 8 is fixed on the interior of telescopic arm 12
On wall；Second connecting rod 15 is hinged with by third pin shaft 16 on the lateral wall of the second nut set 17, the second connecting rod 15
The other end is hinged on the second hinged seat 13 by the 4th pin shaft 14, and second hinged seat 13 is fixed on the inner wall of telescopic arm 12
On.By using the double link pushing mechanism of above structure, in the course of work, pass through
Further, the bottom of first nut set 4 is provided with first step plate 20, the first step plate 20 it is outer
Edge is uniformly machined with multiple through-holes, and the through-hole is slidably matched with the composition of guide rod 11.
Further, the top of the second nut set 17 is provided with second step plate 21, the second step plate 21
Outer rim is uniformly machined with multiple through-holes, and the through-hole is slidably matched with the composition of guide rod 11.By using the sliding of above structure
Cooperation ensure that the first nut set 4 of above structure and the second nut set 17 can slide vertically, and then ensure that its movement
Stationarity.
Further, the bottom thread section 3 and screw top section 10 is oppositely oriented.By using reversed screw thread knot
Structure ensure that the first nut of driving set 4 and 17 counter motions of set of the second nut that it can be synchronized during rotation.
Further, the telescopic arm 12 shares three groups, and the periphery of uniformly distributed centrally disposed bar 2.By using upper
The uniformly distributed telescopic arm 12 for stating structure can be realized centering, ensure that the stability of its driving.
Further, the bottom fixed guide frame 1 uses threaded stud structure.It can be with electricity by using threaded stud structure
The threaded hole of machine lower end axis is connected, and then realizes the fixation of entire centering device.
Embodiment 2:
The application method of any one large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device, including
Following steps:
Step1: the first nut set 4 is rotatably mounted in bottom thread section 3, and the second nut set 17 is rotatably mounted on top
On portion's thread segment 10；
Step2: telescopic arm 12 is passed through into first connecting rod 6 and second connecting rod 15 and the first nut set 4 and the second nut respectively
Set 17 is hinged and connected, and constitutes double link pushing mechanism；
Step3: guide rod 11 is sequentially passed through into the through-hole on first step plate 20 and second step plate 21, and at the top of it
Top fixed guide frame 18 is fixedly mounted, completes the assembling of entire centralising device；
Step4: when scene carries out the installation of shaft coupling guide, the bottom fixed guide frame 1 of two sets of devices is symmetrically screwed in into hair
In the threaded hole of motor lower end axis, so that telescopic arm 12 is located at simultaneously in the guide hole of lower end axis and rotor lower flange；
Step5: investment high pressure oil unloading system is exerted a force simultaneously with spanner and turns 2 head of center-pole clockwise, passes through center
Bottom thread section 3 and screw top section 10 on bar 2 are driven in the reverse direction corresponding first nut set 4 and the second nut set 17 simultaneously,
And then it is opened by the driving telescopic arm 12 synchronous with second connecting rod 15 of first connecting rod 6；
Step6: in its opening process, due to bottom fixed guide frame 1 and the big axis connection of the hydraulic turbine, runner is limited with clapboard
On base ring, bottom fixed guide frame 1 would not be moved, and when such telescopic arm 12 touches lower end pivot pin sets of holes, just will push for position
Rotor rotation, until rotor lower flange and generator lower end pivot pin sets of holes are to the heart；
Step7: installing any symmetrical two in remaining guide, so that all pin holes are all to just, taking out the guide hole
Centering device installs all remaining guidees.
Working principle of the utility model is:
The device cardinal principle is to realize spiral shell by the cooperation between center-pole 2 and pair of nut by center of rotation bar 2
The linear motion of mother set, because the screw thread of center-pole 2 is divided into the top part and the bottom part point, top is left hand thread, and lower part is right-handed thread, this
Sample rotates clockwise center-pole 2, and the second nut set 17 just moves downward, and the first nut set 4 just moves upwards, movement travel one
It causes, allows for being hinged on the upper first connecting rod of nut set and second connecting rod pushes telescopic arm to open, and be always at plumbness,
Apply torsional forces rotation to the flange components of dislocation, forces pin hole centering.
Above-described embodiment is used to illustrate the utility model, rather than limits the utility model, practical at this
In novel spirit and scope of protection of the claims, to any modifications and changes that the utility model is made, this reality is both fallen within
With novel protection scope.
Claims (8)
1. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device, it is characterised in that: it includes bottom
Fixed guide frame (1), the top center of the bottom fixed guide frame (1), which rotatably supports, is equipped with center-pole (2), in
The periphery of core bar (2) is uniformly vertically fixed more guide rods (11), and it is solid to be equipped with top in the top braces of guide rod (11)
Determine leading truck (18), the top of the center-pole (2) passes through the centre bore of top fixed guide frame (18)；The center-pole (2)
It is divided into three-stage structure, including bottom thread section (3), middle part optical axis section (9) and screw top section (10)；In bottom thread section (3)
The uniformly distributed double link pushing mechanism for opening and shrinking of multiple groups is provided between screw top section (10).
2. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 1,
Be characterized in that: the contact position of the top fixed guide frame (18) and center-pole (2) is equipped with wear-resistant sleeve (19).
3. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 1,
Be characterized in that: the double link pushing mechanism includes the first nut set (4) and the second nut set (17)；The first nut set
(4) through screw-driven engagement sleeves on bottom thread section (3), the second nut set (17) is cooperated by screw-driven pacifies
On screw top section (10)；First connecting rod is hinged with by the first pin shaft (5) on the lateral wall of the first nut set (4)
(6), the other end of the first connecting rod (6) is hinged on the first hinged seat (8) by the second pin shaft (7), and described first is hinged
Seat (8) is fixed on the inner wall of telescopic arm (12)；It is hinged by third pin shaft (16) on the lateral wall of the second nut set (17)
Have second connecting rod (15), the other end of the second connecting rod (15) is hinged on the second hinged seat (13) by the 4th pin shaft (14)
On, second hinged seat (13) is fixed on the inner wall of telescopic arm (12).
4. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 3,
Be characterized in that: the bottom of the first nut set (4) is provided with first step plate (20), the outer rim of the first step plate (20)
Multiple through-holes are uniformly machined with, the through-hole is constituted with guide rod (11) and is slidably matched.
5. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 3,
It is characterized in that: being provided with second step plate (21) at the top of the second nut set (17), outside the second step plate (21)
Edge is uniformly machined with multiple through-holes, and the through-hole is constituted with guide rod (11) and is slidably matched.
6. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 3,
Be characterized in that: the bottom thread section (3) and screw top section (10) it is oppositely oriented.
7. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 3,
Be characterized in that: the telescopic arm (12) shares three groups, and the periphery of uniformly distributed centrally disposed bar (2).
8. a kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device according to claim 1,
Be characterized in that: the bottom fixed guide frame (1) uses threaded stud structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920034663.3U CN209465936U (en) | 2019-01-09 | 2019-01-09 | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920034663.3U CN209465936U (en) | 2019-01-09 | 2019-01-09 | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209465936U true CN209465936U (en) | 2019-10-08 |
Family
ID=68092923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920034663.3U Active CN209465936U (en) | 2019-01-09 | 2019-01-09 | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209465936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570994A (en) * | 2019-01-09 | 2019-04-05 | 中国长江电力股份有限公司 | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device and application method |
-
2019
- 2019-01-09 CN CN201920034663.3U patent/CN209465936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570994A (en) * | 2019-01-09 | 2019-04-05 | 中国长江电力股份有限公司 | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206263947U (en) | Six-DOF robot parallel-connection structure | |
| CN109304700A (en) | A kind of hydraulic clamping robot of industrial production | |
| CN209465936U (en) | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device | |
| CN109570994A (en) | A kind of large-scale mixed hydroelectric generating set rotor coupled axle-pin sets of holes centering device and application method | |
| CN110044735A (en) | A kind of architecture engineering material shock resistance testing machine | |
| CN108448803A (en) | A kind of robot servo motors suitable for working long hours in a variety of contexts | |
| CN205614701U (en) | High -efficient telescopic manipulator | |
| CN208555780U (en) | A kind of high-tension switch cabinet cable batch apparatus for bending | |
| CN215929041U (en) | Agricultural product quality safety monitoring system based on Internet of things | |
| CN207747013U (en) | A kind of big stroke precision is to bit platform | |
| CN205968274U (en) | Motor shaft end drilling positioning fixture | |
| CN102652929A (en) | Online dynamic balance regulating mechanism of geotechnical centrifuge | |
| CN110107456B (en) | Vertical wind energy conversion device of passive adjustable declination | |
| CN108797580A (en) | A kind of adjustable rise buildings stake | |
| CN208832001U (en) | A kind of variable-frequency power sources production fixes device with shell | |
| CN209432348U (en) | A kind of dynamic balancing machine supporting mechanism | |
| CN209414919U (en) | Electric power tower inspection mechanism | |
| CN202570440U (en) | Online dynamic balancing adjustment mechanism for geotechnical centrifuges | |
| CN219315538U (en) | Structure device convenient for replacing fingerpost | |
| CN206054273U (en) | A kind of oil pump test fixture | |
| CN203282476U (en) | Operation-type desktop parallel robot | |
| CN220240470U (en) | Mounting fixture is used in switch board welding | |
| CN210614185U (en) | Motor end cover hits rubber machine | |
| CN220372301U (en) | Traction type double-arm swinging head | |
| CN209257005U (en) | A kind of manipulator arm joint bearing forging equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |