CN219885438U - Special frock is dismantled to hydroelectric set turning arm double-link board - Google Patents
Special frock is dismantled to hydroelectric set turning arm double-link board Download PDFInfo
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- CN219885438U CN219885438U CN202321292598.7U CN202321292598U CN219885438U CN 219885438 U CN219885438 U CN 219885438U CN 202321292598 U CN202321292598 U CN 202321292598U CN 219885438 U CN219885438 U CN 219885438U
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- Prior art keywords
- lifting
- disassembling
- sliding
- generating set
- connecting plate
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- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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Abstract
The utility model provides a special fixture for disassembling a crank arm double-connecting plate of a hydroelectric generating set, which comprises a sliding rail cross beam, wherein a T-shaped sliding groove is formed in the sliding rail cross beam, and a sliding hanging point structure is slidably arranged in the T-shaped sliding groove; the top of slide rail crossbeam is fixed with L type cardboard, the top fixed mounting of L type cardboard has parallel arrangement's tight screw rod in top. The fixture can be used for disassembling the double connecting plates of the crank arms below the control ring to replace the existing overhaul mode, so that risks in an overhaul process are reduced, overhaul quality and efficiency are improved, and labor intensity is reduced.
Description
Technical Field
The utility model relates to the technical field of maintenance of hydraulic generators, in particular to a special fixture for disassembling a double connecting plate of a crank arm of a hydraulic generator set.
Background
In the A-level overhaul process of a large hydropower station unit, the water guide mechanism part needs to be disassembled. The water guide mechanism crank arm double-connecting plate is positioned below the control ring and consists of a connecting rod pin, an upper connecting plate, a lower connecting plate, an eccentric pin and other parts, and the upper connecting plate and other parts are vertically lifted by using a chain block during disassembly. The lifting lugs on the lower surface of the control ring are fewer in mounting positions, and lifting or falling parts at any positions cannot be met.
At present, the lifting position is adjusted by utilizing two adjacent lifting lugs and selecting the proper length of the hanging strip, and the chain block is installed to realize the lifting of the component. The hoisting mode has three defects, namely the vertical hoisting cannot be ensured, the length specification of the sling is relatively fixed, the requirements of all hoisting positions cannot be met, and the hook of the chain block has a moving risk in the hoisting process; secondly, the risk is large, the included angle between the two hanging strips is large, and once the lifting lug fails, serious injury to operators and equipment is likely to occur; thirdly, the position of a proper lifting point needs to be found, the operation efficiency is low, and the labor intensity is high.
Disclosure of Invention
The utility model provides a special fixture for disassembling a connecting lever double-connecting plate of a hydroelectric generating set, which can be used for disassembling the connecting lever double-connecting plate below a control ring to replace the existing overhaul mode, reduce the risk in the overhaul process, improve the overhaul quality and efficiency and lighten the labor intensity.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the utility model provides a special frock is dismantled to hydroelectric set turning arm double link board, includes the slide rail crossbeam, the inside processing of slide rail crossbeam has the T type spout that runs through, and the inside slidable mounting of T type spout has a slip hoisting point structure; the top of slide rail crossbeam is fixed with L type cardboard, the top fixed mounting of L type cardboard has parallel arrangement's tight screw rod in top.
The sliding lifting point structure comprises a cross rod, sliding ball heads are fixed at two ends of the cross rod, a lifting screw rod is vertically welded at the center of the cross rod, and a lifting ring is fixedly arranged at the bottom end of the lifting screw rod.
The outside of hoist and mount screw rod is installed lock nut through screw thread fit, lock nut is located the outside of T type spout.
Two threaded holes are formed in the L-shaped clamping plate, and the threaded holes and the jacking screw rod form threaded fit.
When the hydraulic generator is used, the sliding rail cross beam is locked and fixed on the control ring at the top end of the hydraulic generator set through the L-shaped clamping plate and the jacking screw rod, and the bottom end of the lifting ring is connected with a chain block.
The lifting ring is installed on a central threaded hole at the bottom end of the lifting screw through threaded fit through the lifting ring screw.
The utility model has the beneficial effects that:
1. by utilizing the special tool, the lifting of the crank arm double-connecting plate component at any position below the control ring can be realized, and the continuous replacement of the hanging strip when a lifting point is found is avoided.
2. By utilizing the special tool, two or even more hanging strips are not used for operation, and the operation risk is reduced.
3. By utilizing the special tool, the operation efficiency can be greatly improved, the labor intensity is reduced, and the operation time is shortened.
4. By utilizing the special tool, the clamping can be conveniently fixed on the control.
5. By utilizing the special tool, the position of the sliding lifting point structure can be conveniently adjusted.
6. By utilizing the special tool, a plurality of sliding devices can be arranged on one support frame, so that more flexible lifting operation is realized.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a general installation structure diagram of the present utility model.
Fig. 2 is a three-dimensional block diagram of the tooling of the present utility model.
Fig. 3 is a front view of the tooling of the present utility model.
Fig. 4 is a front view of the rail beam of the present utility model.
Fig. 5 is a side view of a rail beam of the present utility model.
Fig. 6 is a top view of the rail cross member of the present utility model.
Fig. 7 is a front view of a sliding suspension point structure of the present utility model.
Fig. 8 is a side view of a sliding suspension point structure of the present utility model.
In the figure: the hydraulic lifting device comprises a sliding rail cross beam 1, an L-shaped clamping plate 2, a jacking screw 3, a T-shaped sliding chute 4, a sliding ball head 5, a cross rod 6, a lifting ring screw 7, a lifting ring 8, a locking nut 9, a lifting screw 10, a control ring 11, a hand hoist 12, a hydraulic generator set 13, a crank arm double-connecting plate 14, crank arms 15 and threaded holes 16.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1-8, a special fixture for disassembling a crank arm double-connecting plate of a hydroelectric generating set comprises a sliding rail cross beam 1, wherein a T-shaped sliding groove 4 penetrating through is formed in the sliding rail cross beam 1, and a sliding hanging point structure is slidably arranged in the T-shaped sliding groove 4; the top of the sliding rail beam 1 is fixed with an L-shaped clamping plate 2, and the top of the L-shaped clamping plate 2 is fixedly provided with a jacking screw 3 which is arranged in parallel. By adopting the special tool, the lifting of the crank arm double-connecting-plate component at any position below the control ring can be realized, and the continuous replacement of the hanging strip for searching a lifting point is avoided. In the specific use process, the sliding rail beam 1 is clamped and fixed on the control ring 11 by the L-shaped clamping plate 2 and the jacking screw 3, and then the sliding lifting point structure is used for connecting a chain block, so that the crank arm double-connecting-plate component is convenient to hoist.
Further, the sliding hanging point structure comprises a cross rod 6, sliding ball heads 5 are fixed at two ends of the cross rod 6, a hanging screw 10 is vertically welded at the center of the cross rod 6, and a hanging ring 8 is fixedly arranged at the bottom end of the hanging screw 10. The position of the T-shaped chute 4 can be conveniently adjusted through the sliding hanging point structure, so that the position of the hanging point is changed. Friction is reduced by the sliding ball head 5, and sliding adjustment is facilitated.
Further, a lock nut 9 is mounted on the outer portion of the lifting screw 10 through threaded fit, and the lock nut 9 is located on the outer portion of the T-shaped sliding groove 4. The sliding hanging point structure is conveniently locked and fixed on the sliding rail cross beam 1 after the position adjustment is finished through the locking nut 9.
Further, two threaded holes 16 are formed in the L-shaped clamping plate 2, and the threaded holes 16 and the jacking screw 3 form threaded fit. The jacking screw 3 is convenient to be matched with the threaded hole 16, so that the whole tool is locked and fixed on the control ring 11, and the fixing reliability is ensured.
Further, during the use, slide rail crossbeam 1 passes through L cardboard 2 and tight screw rod 3 locking of top and fixes on the control ring 11 on hydroelectric set 13 top, rings 8 bottom is connected with chain block 12. The crank arm double-connecting plate 14 and the crank arm 15 are conveniently hoisted through the hand hoist 12 in the installation and arrangement mode, so that maintenance operation is realized.
The working process and principle of the utility model are as follows:
according to the requirement, a plurality of groups of special disassembly tools are selectively and fixedly installed on a control ring 11 at the top end of a hydroelectric generating set 13, the whole tools are locked and fixed on the control ring 11 through a jacking screw 3 and a threaded hole 16, the installation position of a sliding lifting point structure on a sliding rail beam 1 is adjusted, a chain block 12 is connected to the bottom end of a lifting ring 8, after the position adjustment is completed, the sliding lifting point structure is locked and fixed on the sliding rail beam 1 through a locking nut 9, and then a lever double-connecting plate 14 and a lever 15 are hoisted and disassembled through the chain block 12, so that overhaul operation is realized.
Claims (6)
1. The special fixture for disassembling the connecting arm double-connecting plate of the hydroelectric generating set is characterized by comprising a sliding rail cross beam (1), wherein a T-shaped sliding groove (4) penetrating through the sliding rail cross beam (1) is formed in the sliding rail cross beam (1), and a sliding hanging point structure is slidably arranged in the T-shaped sliding groove (4); the top of slide rail crossbeam (1) is fixed with L type cardboard (2), the top fixed mounting of L type cardboard (2) has tight screw rod (3) of pushing up of parallel arrangement.
2. The special fixture for disassembling the connecting arm double-connecting plate of the hydroelectric generating set according to claim 1, wherein the sliding lifting point structure comprises a cross rod (6), sliding ball heads (5) are fixed at two ends of the cross rod (6), a lifting screw (10) is vertically welded at the central part of the cross rod (6), and a lifting ring (8) is fixedly arranged at the bottom end of the lifting screw (10).
3. The special fixture for disassembling the connecting lever double-connecting plate of the hydroelectric generating set according to claim 2, wherein a locking nut (9) is mounted on the outer portion of the lifting screw (10) through threaded fit, and the locking nut (9) is located on the outer portion of the T-shaped sliding groove (4).
4. The special fixture for disassembling the connecting lever double-connecting plate of the hydroelectric generating set, which is disclosed in claim 1, is characterized in that two threaded holes (16) are formed in the L-shaped clamping plate (2), and the threaded holes (16) and the jacking screw (3) form threaded fit.
5. The special fixture for disassembling the crank arm double-connecting plate of the hydroelectric generating set according to claim 2 is characterized in that when in use, the sliding rail cross beam (1) is locked and fixed on a control ring (11) at the top end of the hydroelectric generating set (13) through an L-shaped clamping plate (2) and a jacking screw (3), and the bottom end of the lifting ring (8) is connected with a chain block (12).
6. The special fixture for disassembling the connecting arm double-connecting plate of the hydroelectric generating set, according to claim 2, is characterized in that the lifting ring (8) is installed on a central threaded hole at the bottom end of the lifting screw (10) through threaded fit by the lifting ring screw (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321292598.7U CN219885438U (en) | 2023-05-25 | 2023-05-25 | Special frock is dismantled to hydroelectric set turning arm double-link board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321292598.7U CN219885438U (en) | 2023-05-25 | 2023-05-25 | Special frock is dismantled to hydroelectric set turning arm double-link board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219885438U true CN219885438U (en) | 2023-10-24 |
Family
ID=88410725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321292598.7U Active CN219885438U (en) | 2023-05-25 | 2023-05-25 | Special frock is dismantled to hydroelectric set turning arm double-link board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219885438U (en) |
-
2023
- 2023-05-25 CN CN202321292598.7U patent/CN219885438U/en active Active
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