CN210451688U - Water turbine stator shaft sleeve extracting tool - Google Patents
Water turbine stator shaft sleeve extracting tool Download PDFInfo
- Publication number
- CN210451688U CN210451688U CN201920900957.XU CN201920900957U CN210451688U CN 210451688 U CN210451688 U CN 210451688U CN 201920900957 U CN201920900957 U CN 201920900957U CN 210451688 U CN210451688 U CN 210451688U
- Authority
- CN
- China
- Prior art keywords
- pull
- pull rod
- shaft sleeve
- pull disc
- axle sleeve
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic turbine stator axle sleeve extracting tool, including the arm-tie, the pull rod, adjustable joint subassembly, roof and pneumatic cylinder, the lower extreme of pull rod puts fixed connection with the central point of arm-tie, the upper end is equipped with the external screw thread, the roof middle part is passed to the upper end of pull rod, and the spiro union has the nut, the both sides below symmetry of roof is equipped with the pneumatic cylinder, the pneumatic cylinder is arranged in generating set end ring on the surface, the flexible end butt of pneumatic cylinder is on the lower surface of roof, install a plurality of adjustable joint subassemblies on the same circumference of arm-tie, the adjustable joint subassembly can be followed the radial flexible of arm-tie, the internal axle sleeve that is equipped with of generating set end ring, adjustable joint subassembly can the joint in circular blind hole. The utility model has the advantages that: according to the structural characteristic of axle sleeve, the inside circular blind hole of make full use of axle sleeve sets up adjustable joint subassembly on drawing the dish, and the dismantlement process is easy to be operated, and is simple, convenient, and the axle sleeve process of taking out can not cause the damage to the inner wall of bottom ring blind hole.
Description
Technical Field
The utility model relates to a hydraulic turbine maintenance tool technical field, especially hydraulic turbine stator shaft sleeve extracting tool.
Background
The guide vane shaft sleeve of the water turbine generator set is a copper-based embedded self-lubricating shaft sleeve, and is pressed into a bottom ring blind hole of the generator set through an interference mounting method of a pressurizing device (or liquid nitrogen treatment), and equipment faults such as guide vane deviation and the like are caused due to the fact that the guide vane shaft sleeve exceeds a standard in fit clearance caused by water soaking and abrasion all the year round, so that normal production is influenced, and regular detection and replacement are required.
The axle sleeve is as shown in fig. 2, is equipped with the circular blind hole of multiunit on its inner wall, because be interference fit between axle sleeve and the end ring blind hole, during the dismantlement, requires to mention the axle sleeve is vertical, if the axle sleeve atress slope in the dismantlement process, can cause the injury to end ring blind hole, influences the precision of the new axle sleeve installation of later stage. Therefore, a special disassembling tool needs to be designed according to the structural characteristics of the shaft sleeve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a hydraulic turbine stator axle sleeve extracting tool.
The purpose of the utility model is realized through the following technical scheme:
hydraulic turbine stator axle sleeve extracting tool, including drawing dish, pull rod, adjustable joint subassembly, roof and pneumatic cylinder, the lower extreme of pull rod puts fixed connection with the central point of drawing dish, and the upper end is equipped with the external screw thread, the roof middle part is passed to the upper end of pull rod to the spiro union has the nut, the both sides below symmetry of roof is equipped with the pneumatic cylinder, the generating set end ring is arranged in to the pneumatic cylinder on the surface, the flexible end butt of pneumatic cylinder is on the lower surface of roof, install a plurality of adjustable joint subassemblies on the same circumference of drawing dish, the radial flexible of drawing dish can be followed to adjustable joint subassembly, the generating set end ring is built-in to be equipped with the axle sleeve, it has the circular blind hole of multiunit to open on the inner wall of axle sleeve, adjustable joint subassembly can the joint in circular blind hole under the.
Further, the drawing disk has a plurality of spring mounting holes along its radial division, the spring mounting hole is the blind hole, adjustable joint subassembly includes block tongue and spring, spring mounting is in the spring mounting hole, just the one end of spring is fixed in the bottom of spring mounting hole, and the other end is connected with the one end of block tongue, the other end of block tongue stretches out along the radial outside of drawing disk in the spring mounting hole.
Furthermore, the drawing disc is provided with a plurality of shifting grooves on the surface, the shifting grooves are located right above the spring mounting holes and communicated with the spring mounting holes, one end, close to the central position of the drawing disc, of the shifting grooves is provided with a locking groove, the locking groove is perpendicular to the shifting grooves, the adjustable clamping assembly further comprises a shifting piece, the lower end of the shifting piece is fixedly connected with one end, close to the spring, of the clamping tongue, and the upper end of the shifting piece extends upwards from the shifting grooves.
Furthermore, the clamping tongue is of a cylindrical structure, and the outer diameter of the clamping tongue is smaller than the inner diameter of the round blind hole.
Furthermore, the top plate comprises a plate body, and a through hole for the pull rod to pass through is formed in the middle of the plate body.
Further, the top plate further comprises two positioning rings, the two positioning rings are symmetrically arranged on two sides of the lower surface of the plate body, and the telescopic end head of the hydraulic cylinder is embedded into the positioning rings.
Furthermore, the lower surface of the plate body is symmetrically provided with flanges along the length direction, and the flanges and the plate body are integrally formed.
Furthermore, the lower surface of the pull disc is also provided with a guide conical surface.
Further, the inner diameter of the shaft sleeve is 1.05-1.1 times of the outer diameter of the pull disc.
Further, the pull rod and the pull disc are both made of 316L stainless steel materials, and the lower end of the pull rod is connected with the center of the pull disc in a welding mode.
The utility model has the advantages of it is following:
1. the utility model discloses structural feature according to the axle sleeve, the inside circular blind hole of make full use of axle sleeve, set up adjustable joint subassembly on the drawing dish, when the drawing dish inserts in the axle sleeve, with adjustable joint subassembly retraction draw set in, the inserted disc removes the back that targets in place, adjustable joint subassembly stretches out, and in inserting the circular blind hole of axle sleeve, can realize drawing dish and axle sleeve relatively fixed, rethread pneumatic cylinder jack-up roof, the roof makes progress the drawing dish through the pull rod and pulls out, pull out the axle sleeve in the lump simultaneously, dismantle process easy operation, and is simple, and is convenient, the axle sleeve takes out the process and can not cause the damage to the inner wall of bottom ring blind hole.
2. The utility model discloses a joint subassembly passes through the spring and assembles the latch in the spring mounting hole for the latch can follow the radial flexible of drawing the dish, during the shrink, can stretch into the axle sleeve with drawing the dish, and when stretching out, can block in the circular blind hole of axle sleeve, and the result is simple, convenient to use.
3. The pull disc is provided with a locking groove, when the clamping tongue is locked in the pull disc, the shifting piece is clamped in the locking groove, and the clamping tongue is prevented from extending out of the outer wall of the pull disc in the process that the pull disc is inserted into the shaft sleeve.
4. The lower surface of the pull disc is provided with a guide conical surface, and the pull disc is inserted into the shaft sleeve to play a role in guiding.
5. The lower surface at the roof sets up the holding ring, with the flexible end portion embedding holding ring of pneumatic cylinder in, prevents that the flexible end portion and the roof of pneumatic cylinder from taking place relative displacement at the roof pressure in-process, ensures that the jacking process is vertical upwards.
6. Set up the turn-ups in the length direction both sides of roof, can promote the intensity of roof, prevent that the roof from by the kicking.
Drawings
Fig. 1 is a schematic view of the working state structure of the present invention;
FIG. 2 is a schematic structural view of a bushing;
FIG. 3 is a longitudinal sectional view of FIG. 1;
fig. 4 is a schematic perspective view of the pull plate of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 3;
fig. 6 is a schematic side view of the pull plate of the present invention;
fig. 7 is a schematic structural view of the top plate of the present invention;
in the figure: 1-pull disc, 11-shifting groove, 12-locking groove, 13-spring mounting hole, 14-guiding conical surface, 2-pull rod, 3-adjustable clamping component, 31-clamping tongue, 32-shifting piece, 33-spring, 4-top plate, 41-plate body, 411-through hole, 42-positioning ring, 43-flanging, 5-nut, 6-hydraulic cylinder, 7-generator set bottom ring, 8-shaft sleeve and 81-round blind hole.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1 and 3, the water turbine guide vane shaft sleeve dismounting tool comprises a pull disc 1, a pull rod 2, an adjustable clamping assembly 3, a top plate 4 and a hydraulic cylinder 6, the lower end of the pull rod 2 is fixedly connected with the central position of the pull disc 1, the upper end is provided with external threads, the upper end of the pull rod 2 penetrates through the middle part of the top plate 4, a nut 5 is screwed, hydraulic cylinders 6 are symmetrically arranged below two sides of the top plate 4, the hydraulic cylinders 6 are arranged on the surface of a bottom ring 7 of the generator set, the telescopic end of the hydraulic cylinder 6 is abutted against the lower surface of the top plate 4, a plurality of adjustable clamping components 3 are arranged on the same circumference of the pull disc 1, the adjustable clamping assembly 3 can extend and retract along the radial direction of the pull disc 1, a shaft sleeve 8 is assembled in a bottom ring 7 of the generating set, the inner wall of the shaft sleeve 8 is provided with a plurality of groups of round blind holes 81, and the adjustable clamping component 3 can be clamped in the round blind holes 81 in an extending state.
Further, as shown in fig. 4 and 5, the pull disc 1 is provided with a plurality of spring mounting holes 13 along the radial direction, the spring mounting holes 13 are blind holes, the adjustable clamping assembly 3 comprises a clamping tongue 31 and a spring 33, the spring 33 is installed in the spring mounting holes 13, one end of the spring 33 is fixed at the bottom of the spring mounting holes 13, the other end of the spring 33 is connected with one end of the clamping tongue 31, and the other end of the clamping tongue 31 extends out along the radial direction of the pull disc 1 from the spring mounting holes 13.
Further, as shown in fig. 4 and 5, a plurality of shifting grooves 11 are formed in the surface of the pull plate 1, the shifting grooves 11 are located right above the spring mounting holes 13, the shifting grooves 11 are communicated with the spring mounting holes 13, locking grooves 12 are formed in one ends, close to the center of the pull plate 1, of the shifting grooves 11, the locking grooves 12 are perpendicular to the shifting grooves 11, the adjustable clamping assembly 3 further comprises shifting pieces 32, the lower ends of the shifting pieces 32 are fixedly connected with one ends, close to the springs 33, of the clamping tongues 31, and the upper ends of the shifting pieces 32 extend upwards from the shifting grooves 11. The shifting piece 32 can slide in the shifting groove 11, the shifting piece 32 drives the clamping tongue 31 to move together, when the shifting piece 32 moves towards one side of the pull rod 2, the clamping tongue 31 retracts into the pull disc 1, when the shifting piece 32 moves to the locking groove 12, the clamping tongue 31 is completely locked into the pull disc 1, then the shifting piece 32 is shifted into the locking groove 12, the clamping tongue 31 retracts and is positioned, when the pull disc 1 moves in place, the shifting piece 32 is shifted out from the locking groove 12, and under the elastic force action of the spring 33, the clamping tongue 31 extends out of the side wall of the pull disc 1.
Further, as shown in fig. 4 and 6, the latch 31 has a cylindrical structure, and the outer diameter of the latch 31 is smaller than the inner diameter of the circular blind hole 81, so that the latch 31 can be latched into the circular blind hole 81.
Further, as shown in fig. 7, the top plate 4 includes a plate body 41, a through hole 411 for the tie rod 2 to pass through is formed in the middle of the plate body 41, and the inner diameter of the through hole 411 is larger than the outer diameter of the tie rod 2.
Further, as shown in fig. 7, the top plate 4 further includes two positioning rings 42, the two positioning rings 42 are symmetrically disposed on two sides of the lower surface of the plate body 41, and the telescopic end of the hydraulic cylinder 6 is embedded into the positioning rings 42, so as to prevent the telescopic end of the hydraulic cylinder 6 and the top plate 4 from being displaced relatively in the jacking process, and ensure that the jacking process is vertically upward.
Further, as shown in fig. 7, flanges 43 are symmetrically arranged on the lower surface of the plate body 41 along the length direction of the lower surface, the flanges 43 are integrally formed with the plate body 41, and the flanges 43 improve the strength of the plate body 41 and prevent the plate body 41 from bending during the jacking process of the hydraulic cylinder 6.
Further, as shown in fig. 6, the lower surface of the pull disc 1 is further provided with a guiding tapered surface 14, so that the pull disc 1 can be more conveniently inserted in the process of inserting the pull disc 1 into the shaft sleeve 8.
Preferably, in the embodiment, the protruding length of the latch 31 cannot be too long as known from mechanics knowledge, and in order to reduce the shearing force applied to the latch 31, the inner diameter of the sleeve 8 is 1.05 to 1.1 times of the outer diameter of the pull plate 1.
Further, the pull rod 2 and the pull disc 1 are both made of 316L stainless steel materials, and the lower end of the pull rod 2 is connected with the center of the pull disc 1 in a welding mode.
The working process of the utility model is as follows: when the shaft sleeve is disassembled, two hydraulic cylinders 6 in a contraction state are placed on the surface of a bottom ring 7 of the generator set, the two hydraulic cylinders 6 are symmetrically placed about the shaft sleeve 8, a shifting sheet 32 is shifted into a locking groove 12, a clamping tongue 31 is retracted into a pull disc 1, the pull disc 1 is inserted into the shaft sleeve 8, when the pull disc 1 moves to a proper position, the shifting sheet 32 is shifted out from the locking groove 12, the shifting sheet 32 slides along the shifting groove 11, the clamping tongue 31 extends out, the clamping tongue 31 extends into a circular blind hole 81, the pull disc 1 and the shaft sleeve 8 are relatively fixed, the upper end of a pull rod 2 penetrates through a through hole 411 of a top plate 4, two ends of the top plate 4 are placed above the telescopic end head part of the hydraulic cylinders 6, the telescopic end head parts of the hydraulic cylinders 6 are embedded into positioning rings 42 on the corresponding sides, a nut 5 is locked from the top end of the pull rod 2, the lower surface of the nut 5 is pressed on the top plate 4, the two hydraulic cylinders 6 form a, upwards jacking roof 4, roof 4 drive pull rod 2 and drawing disk 1 upwards remove, pull out axle sleeve 8 from generating set bottom ring 7 gradually, pull out the back with axle sleeve 8, dial into locking groove 12 again with plectrum 32 in, take out drawing disk 1 from axle sleeve 8, accomplish the dismantlement.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a hydraulic turbine stator axle sleeve extracting tool which characterized in that: comprises a pull disc (1), a pull rod (2), adjustable clamping components (3), a top plate (4) and a hydraulic cylinder (6), wherein the lower end of the pull rod (2) is fixedly connected with the center of the pull disc (1), the upper end of the pull rod is provided with an external thread, the upper end of the pull rod (2) penetrates through the middle part of the top plate (4) and is screwed with a nut (5), the hydraulic cylinder (6) is symmetrically arranged below the two sides of the top plate (4), the hydraulic cylinder (6) is arranged on the surface of a generator set bottom ring (7), the telescopic end of the hydraulic cylinder (6) is abutted against the lower surface of the top plate (4), a plurality of adjustable clamping components (3) are arranged on the same circumference of the pull disc (1), the adjustable clamping components (3) can stretch along the radial direction of the pull disc (1), a shaft sleeve (8) is arranged in the generator set bottom ring (7), and a plurality of groups of round blind holes (81) are formed, the adjustable clamping component (3) can be clamped in the round blind hole (81) in an extending state.
2. The turbine guide vane shaft sleeve dismounting tool of claim 1, characterized in that: pull disc (1) has a plurality of spring mounting holes (13) along its radial division, spring mounting hole (13) are the blind hole, adjustable joint subassembly (3) are including block tongue (31) and spring (33), install in spring mounting hole (13) spring (33), just the bottom in spring mounting hole (13) is fixed to the one end of spring (33), and the other end is connected with the one end of block tongue (31), the other end of block tongue (31) is followed in spring mounting hole (13) and is stretched out radially outwards along pull disc (1).
3. The turbine vane bushing removal tool of claim 2, wherein: the utility model discloses a lock catch, including pull disc (1), pull disc (11), dial groove (11), and dial groove (11) and spring mounting hole (13), dial groove (11) and spring mounting hole (13) intercommunication directly over, it has locking groove (12) to dial the one end that groove (11) are close to pull disc (1) central point and put, locking groove (12) are perpendicular with dialling groove (11), adjustable joint subassembly (3) still include plectrum (32), the lower extreme and the card tongue (31) of plectrum (32) are close to the one end fixed connection of spring (33), upwards stretch out in dialling groove (11) from dialling groove (32) in the upper end of plectrum (32).
4. The turbine vane bushing removal tool of claim 3, wherein: the clamping tongue (31) is of a cylindrical structure, and the outer diameter of the clamping tongue (31) is smaller than the inner diameter of the round blind hole (81).
5. The turbine guide vane shaft sleeve dismounting tool of claim 1, characterized in that: the top plate (4) comprises a plate body (41), and a through hole (411) for the pull rod (2) to pass through is formed in the middle of the plate body (41).
6. The turbine guide vane shaft sleeve dismounting tool of claim 5, characterized in that: roof (4) still include holding ring (42), holding ring (42) have two, and two holding ring (42) symmetry set up in the lower surface both sides of board body (41), the flexible tip of pneumatic cylinder (6) is embedded in holding ring (42).
7. The turbine vane bushing removal tool of claim 6, wherein: the lower surface of the plate body (41) is symmetrically provided with flanges (43) along the length direction of the lower surface, and the flanges (43) and the plate body (41) are integrally formed.
8. The turbine guide vane shaft sleeve dismounting tool as set forth in any one of claims 1 to 3, characterized in that: the lower surface of the pull disc (1) is also provided with a guide conical surface (14).
9. The turbine vane bushing removal tool of claim 8, wherein: the inner diameter of the shaft sleeve (8) is 1.05-1.1 times of the outer diameter of the pull disc (1).
10. The turbine guide vane shaft sleeve dismounting tool of claim 1, characterized in that: the pull rod (2) and the pull disc (1) are both made of 316L stainless steel materials, and the lower end of the pull rod (2) is connected with the center of the pull disc (1) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920900957.XU CN210451688U (en) | 2019-06-14 | 2019-06-14 | Water turbine stator shaft sleeve extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920900957.XU CN210451688U (en) | 2019-06-14 | 2019-06-14 | Water turbine stator shaft sleeve extracting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210451688U true CN210451688U (en) | 2020-05-05 |
Family
ID=70440768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920900957.XU Expired - Fee Related CN210451688U (en) | 2019-06-14 | 2019-06-14 | Water turbine stator shaft sleeve extracting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210451688U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673670A (en) * | 2020-06-02 | 2020-09-18 | 国家电网有限公司 | Guide vane shaft sleeve dismounting tool |
| CN111730316A (en) * | 2020-08-17 | 2020-10-02 | 山东天瑞重工有限公司 | Hydraulic rock drill's dismouting axle sleeve frock |
| CN113829288A (en) * | 2021-11-26 | 2021-12-24 | 晶芯成(北京)科技有限公司 | Dismantling jig and method for gas distribution module |
| CN114012658A (en) * | 2021-10-29 | 2022-02-08 | 华能山东石岛湾核电有限公司 | Sealing washer remove device |
-
2019
- 2019-06-14 CN CN201920900957.XU patent/CN210451688U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673670A (en) * | 2020-06-02 | 2020-09-18 | 国家电网有限公司 | Guide vane shaft sleeve dismounting tool |
| CN111730316A (en) * | 2020-08-17 | 2020-10-02 | 山东天瑞重工有限公司 | Hydraulic rock drill's dismouting axle sleeve frock |
| CN114012658A (en) * | 2021-10-29 | 2022-02-08 | 华能山东石岛湾核电有限公司 | Sealing washer remove device |
| CN113829288A (en) * | 2021-11-26 | 2021-12-24 | 晶芯成(北京)科技有限公司 | Dismantling jig and method for gas distribution module |
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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 |
Granted publication date: 20200505 Termination date: 20210614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |