CN218665221U - Dismounting and repairing device for large hydroelectric generating set brake - Google Patents
Dismounting and repairing device for large hydroelectric generating set brake Download PDFInfo
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- CN218665221U CN218665221U CN202222133937.9U CN202222133937U CN218665221U CN 218665221 U CN218665221 U CN 218665221U CN 202222133937 U CN202222133937 U CN 202222133937U CN 218665221 U CN218665221 U CN 218665221U
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
A large hydroelectric generating set brake dismounting and overhauling device comprises a shear type lifting platform, a convex sliding rail and a brake hoisting device; the scissor type lifting platform comprises a walking device, a bottom plate, a parallelogram structure, a hydraulic pedal, a hydraulic device and an upper platform; one end of each of the two convex sliding rails is lapped on the brake placing platform, and the other end of each of the two convex sliding rails is fixed on an upper platform of the scissor type lifting platform; the brake hoisting device comprises a concave pulley, a rotary screw rod, a vertical jack, a supporting groove and a pulley connecting rod, wherein the concave pulley is clamped on the upper part of the convex sliding rail, the pulley connecting rod is connected with the left concave pulley and the right concave pulley, the upper part of the concave pulley is connected with the vertical jack, the vertical jack is connected with the rotary screw rod, the top of the vertical jack is provided with the supporting groove, and the supporting groove is in contact with the brake. The device is convenient to operate, safe and environment-friendly, and can directly finish brake removal, replacement and reinstallation in the machine pit under the condition that the rotor is not lifted out of the machine pit.
Description
The technical field is as follows:
the utility model belongs to the technical field of power station unit installation, maintenance, in particular to hydroelectric set stopper installation, demolish, overhaul technical field.
Background art:
the brake is one of the key parts of the water turbine generator set, mainly undertakes the tasks of unit braking, unit maintenance rotation prevention and the like, and is generally arranged on a lower rack support arm and below a rotor braking ring. For a large hydroelectric generating set, the selected brake has large physical size and heavy weight which can reach 460kg, so the brake is usually replaced during the overhaul of the generating set, and after the rotor is lifted out of a machine pit to an overhaul station, the brake is lifted to the overhaul station of an installation room along with a lower frame to be removed and replaced. In actual construction, the rotor is directly replaced in the engine pit under the condition that the rotor is not hung, and due to the fact that the weight of the brake is large, and the space where the brake is located is narrow, manual dismounting and reloading are difficult, time consumption is long, and safety risk is large.
The utility model has the following contents:
the utility model discloses solve the problem that hydroelectric set stopper demolishs, repack the difficulty in the pit to ensure to demolish at the stopper and repack the personnel's safety of in-process.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
the utility model provides a large hydroelectric generating set brake dismounting and repairing device, which comprises a shear type lifting platform, a convex slide rail and a brake hoisting device; the shear type lifting platform is arranged opposite to the brake placing platform and comprises a walking device, a bottom plate, a parallelogram structure, hydraulic pedals and a hydraulic device, wherein the walking device is arranged below the bottom plate, the parallelogram structure and the two hydraulic devices are fixedly arranged on the bottom plate, the telescopic ends of the hydraulic devices are hinged to the middle of the parallelogram structure, the hydraulic pedals are arranged on one side of the bottom plate away from the brake placing platform and connected with the two hydraulic devices, and an upper platform is arranged at the top of the parallelogram structure; two convex sliding rails are arranged in parallel, one end of each convex sliding rail is lapped on the brake placing platform, and the other end of each convex sliding rail is fixed on the upper platform of the shear type lifting platform; the brake hoisting device comprises concave pulleys, a rotating screw rod, a vertical jack, a supporting groove and a pulley connecting rod, wherein the concave pulleys are clamped on the upper portion of the convex sliding rail, the pulley connecting rod is connected with the two concave pulleys which are arranged in bilateral symmetry, the upper portion of each concave pulley is connected with the vertical jack, the vertical jack is in threaded connection with the rotating screw rod, the supporting groove is formed in the top of the vertical jack, and the supporting groove is in contact with the brake through the hoisting screw rod on the brake.
The convex slide rail is a cuboid bearing steel plate with a convex middle part.
One end of the convex sliding rail is lapped on the brake placing platform, the other end of the convex sliding rail is fixed on the upper platform of the shear type lifting platform through a sliding rail fixing bolt, and the sliding rail fixing bolt is arranged at one end of the convex sliding rail.
The walking device below the bottom plate adopts universal wheels, and the universal wheels are arranged at four top corners below the bottom plate.
The parallelogram structure is a folding frame formed by a plurality of connecting rods which are hinged with each other.
Four concave pulleys are symmetrically arranged.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. the utility model discloses utilize the jack-up function of jack, can easily mention heavier stopper.
2. The utility model discloses utilize convex slide rail cooperation spill pulley, can very easily make the stopper move out from original seat.
3. The utility model discloses utilize and cut formula lift platform can be very safe drop the stopper by the eminence.
4. The utility model discloses can utilize the running gear who cuts formula lift platform to move the stopper to suitable maintenance position, conveniently disassemble the maintenance.
5. The utility model discloses simple structure, operation use safe and reliable, have fine practical value.
To sum up, the utility model discloses be less than 500 kg's stopper dismouting and the auxiliary device that designs to weight. The device structure is light simple, and the split, combination are convenient, the operation of being convenient for, and safety ring protects, can directly accomplish the stopper in the machine pit and demolish, change and repack under the rotor does not hang out the machine pit condition.
Description of the drawings:
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a side view of the scissor lift platform of the present invention;
FIG. 3 is a side view of the structure of the present invention;
FIG. 4 is a top view of the present invention;
fig. 5 is a schematic view of the structure of the convex slide rail of the present invention.
Reference numbers in the figures:
the device comprises a 1-scissor type lifting platform, a 2-convex sliding rail, a 3-brake hoisting device, a 4-brake and a 5-brake placing platform.
1.1-hydraulic pedal, 1.2-hydraulic device, 1.3-parallelogram structure.
2.1-slide rail fixing bolt.
3.1-concave pulley, 3.2-rotary screw, 3.3-vertical jack, 3.4-support groove, and 3.5-pulley connecting rod.
4.1-lifting screw rod, 4.2-brake base.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.
Referring to fig. 1-5, the utility model provides a large-scale hydroelectric set stopper dismouting overhauls device, the device comprises cutting formula lift platform 1, convex slide rail 2, stopper hoisting apparatus 3, is to the stopper 4 demolish the device that falls to the ground and remove to overhaul the platform. Shear type lift platform 1 and stopper place the platform 5 relative setting, shear type lift platform 1 is the comparatively ripe hoisting apparatus of prior art, and it contains running gear, bottom plate, parallelogram 1.3, hydraulic pressure pedal 1.1, hydraulic means 1.2, and running gear adopts the universal wheel, and four apex angle departments below the bottom plate all are provided with the universal wheel, can carry out the free movement in four directions in front, back, left and right. A parallelogram structure 1.3 and two hydraulic devices 1.2 are fixedly arranged on the bottom plate, the parallelogram structure 1.3 is a folding frame formed by a plurality of connecting rods which are hinged with each other, the bottom of the parallelogram structure 1.3 is fixed on the bottom plate, and the top of the parallelogram structure 1.3 is provided with an upper platform; the telescopic end of the hydraulic device 1.2 is hinged to the middle of the parallelogram structure 1.3, one side, away from the brake placing platform 5, of the bottom plate is provided with a hydraulic pedal 1.1, the hydraulic pedal 1.1 is connected with the two hydraulic devices 1.2 through an oil pipe, the hydraulic pedal 1.1 controls the hydraulic devices 1.2 to be pressurized and decompressed, the hydraulic devices 1.2 are pressurized, the parallelogram structure 1.3 is slowly lifted, and the designed and selected scissor type lifting platform 1 can bear 800kg, is lifted to 1.7m and is 0.45m at the lowest height. The convex slide rail 2 is a cuboid bearing steel plate with a convex middle part, the convex slide rail 2 is provided with two parallel arrangement, one end of the convex slide rail 2 is lapped on the brake placing platform 5, the other end of the convex slide rail is fixed on the upper platform of the scissor type lifting platform 1 by a slide rail fixing bolt 2.1, and the slide rail fixing bolt 2.1 is arranged at one end of the convex slide rail 2 and used for fixing the convex slide rail 2. The brake 4 is an important part which lifts up the rotor part of the large-scale hydroelectric generating set and plays a role of speed reduction in the operation process, and comprises a jack screw 4.1 and a brake base 4.2, wherein the jack screw 4.1 is arranged on the outer surface of the fixer and can rotate in the circumferential direction; the brake foot 4.2 of the brake 4 rests on the brake placement platform 5. The brake hoisting device 3 in the embodiment is designed to hoist a 2T heavy object, and comprises a concave pulley 3.1, a rotating screw rod 3.2, a vertical jack 3.3, a supporting groove 3.4 and a pulley connecting rod 3.5; the convex sliding rail 2 is a track of a concave pulley 3.1, the concave pulley 3.1 is clamped at the upper part of the convex sliding rail 2, and the concave pulley 3.1 controls the brake 4 to move forwards; four concave pulleys 3.1 are symmetrically arranged, and a pulley connecting rod 3.5 is connected with two concave pulleys 3.1 which are symmetrically arranged left and right; the upper part of the concave pulley 3.1 is connected with a vertical jack 3.3, the vertical jack 3.3 is a common automobile hoisting tool, the maximum lifting height is 460mm, the minimum descending height is 125mm, the utility model is mainly used for hoisting and dropping the brake 4; the vertical jack 3.3 is in threaded connection with a rotary screw rod 3.2, and the rotary screw rod 3.2 controls the vertical up and down of the vertical jack 3.3; the top of the vertical jack 3.3 is provided with a supporting groove 3.4, the supporting groove 3.4 is contacted with the brake 4 through a hoisting screw rod 4.1 on the brake 4, and the supporting groove 3.4 holds up the brake 4. After a brake 4 is lifted by a vertical jack 3.3, the brake 4 is moved to a scissor type lifting platform 1 by matching a convex slide rail 2 with a concave pulley 3.1, and the brake 4 is conveyed to the ground by using the lifting function of the scissor type lifting platform 1.
The following is a description of the application of the brake mounting and dismounting device for a large-sized hydraulic generator.
When the device is used, firstly, the scissor type lifting platform 1 is moved to one side of the appointed brake placing platform 5, a hydraulic pedal 1.1 is treaded by feet, the scissor type lifting platform 1 is driven by a hydraulic device 1.2 to slowly ascend to be flush with the brake placing platform 5, one end of a convex slide rail 2 is lapped on the brake placing platform 5, and the other end of the convex slide rail is fixed on an upper platform of the scissor type lifting platform 1 through a slide rail fixing bolt 2.1. Then a brake hoisting device 3 is installed, the concave pulley 3.1 is clamped at the upper part of the convex slide rail 2, and the left concave pulley 3.1 and the right concave pulley 3.1 are connected by a pulley connecting rod 3.5 to ensure the stability; the upper part of the concave pulley 3.1 is connected with a vertical jack 3.3, the vertical jack 3.3 is in threaded connection with a rotary screw rod 3.2, the vertical jack 3.3 slowly rises under the rotation of the rotary screw rod 3.2 until a supporting groove 3.4 is in contact with a hoisting screw rod 4.1 of a brake 4, the hoisting screw rod 4.1 can rotate in the circumferential direction and is matched with the supporting groove 3.4, so that the two parts can be completely contacted and not separated, the brake 4 can be disassembled, the rotary screw rod 3.2 is screwed, the vertical jack 3.3 exerts force to enable the supporting groove 3.4 and the hoisting screw rod 4.1 to be stressed upwards, and the brake 4 is separated from the upper surface of a brake placing platform 5 by 5mm under the action of the hoisting screw rod 4.1. The manual brake 4 is pushed to slowly move to the upper plane of the scissor type lifting platform 1 along the convex sliding rail 2; after the device moves to the center of the shear type lifting platform 1, the rotary screw 3.2 is screwed to enable the brake 4 to fall, and after the device is completely free from stress, the convex slide rail 2 is removed; switching the hydraulic device 1.2, so that the scissor type lifting platform 1 slowly falls to the lowest part of the scissor type lifting platform 1 and is about 350mm away from the ground under the control of the hydraulic pedal 1; and moving the brake 4 to a corresponding maintenance platform, re-building the shorter convex slide rail 2 and other parts, manually pushing the brake 4 out of the maintenance platform, and screwing the rotary screw rod 3.2 to enable the brake to fall to the upper plane of the maintenance platform. Otherwise, the brake 4 is mounted back on the brake placement platform 5.
Claims (6)
1. The utility model provides a large-scale hydroelectric set stopper dismouting overhauls device which characterized by: the dismounting and overhauling device consists of a shear type lifting platform (1), a convex sliding rail (2) and a brake hoisting device (3); the shear type lifting platform (1) is arranged opposite to the brake placing platform (5), the shear type lifting platform (1) comprises a walking device, a bottom plate, a parallelogram structure (1.3), hydraulic pedals (1.1) and hydraulic devices (1.2), the walking device is arranged below the bottom plate, the parallelogram structure (1.3) and the two hydraulic devices (1.2) are fixedly arranged on the bottom plate, the telescopic end of each hydraulic device (1.2) is hinged to the middle of the parallelogram structure (1.3), the hydraulic pedals (1.1) are arranged on one side of the bottom plate away from the brake placing platform (5), the hydraulic pedals (1.1) are connected with the two hydraulic devices (1.2), and an upper platform is arranged at the top of the parallelogram structure (1.3); two convex sliding rails (2) are arranged in parallel, one end of each convex sliding rail (2) is lapped on the brake placing platform (5), and the other end of each convex sliding rail is fixed on the upper platform of the shear type lifting platform (1); stopper hoisting device (3) contain concave pulley (3.1), rotatory screw rod (3.2), jack (3.3), support recess (3.4) and pulley connecting rod (3.5), concave pulley (3.1) card is on convex slide rail (2) upper portion, two concave pulley (3.1) that bilateral symmetry set up are connected in pulley connecting rod (3.5), concave pulley (3.1) upper portion is connected with jack (3.3), jack (3.3) threaded connection rotatory screw rod (3.2) found, jack (3.3) top sets up support recess (3.4), jack (4.1) on support recess (3.4) pass through stopper (4) contact with stopper (4).
2. The large hydroelectric generating set brake dismounting and repairing device according to claim 1, which is characterized in that: the convex slide rail (2) is a cuboid bearing steel plate with a convex middle part.
3. The large hydroelectric generating set brake dismounting and repairing device according to claim 1, which is characterized in that: one end of the convex sliding rail (2) is lapped on the brake placing platform (5), the other end of the convex sliding rail is fixed on the upper platform of the scissor type lifting platform (1) through a sliding rail fixing bolt (2.1), and the sliding rail fixing bolt (2.1) is arranged at one end of the convex sliding rail (2).
4. The large hydroelectric generating set brake dismounting and repairing device according to claim 1, which is characterized in that: the walking device below the bottom plate adopts universal wheels, and the universal wheels are arranged at four top corners below the bottom plate.
5. The large hydroelectric generating set brake dismounting and repairing device according to claim 1, which is characterized in that: the parallelogram structure (1.3) is a folding frame formed by a plurality of connecting rods which are hinged with each other.
6. The large hydroelectric generating set brake dismounting and repairing device according to claim 1, which is characterized in that: four concave pulleys (3.1) are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133937.9U CN218665221U (en) | 2022-08-12 | 2022-08-12 | Dismounting and repairing device for large hydroelectric generating set brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133937.9U CN218665221U (en) | 2022-08-12 | 2022-08-12 | Dismounting and repairing device for large hydroelectric generating set brake |
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| Publication Number | Publication Date |
|---|---|
| CN218665221U true CN218665221U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222133937.9U Active CN218665221U (en) | 2022-08-12 | 2022-08-12 | Dismounting and repairing device for large hydroelectric generating set brake |
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| Country | Link |
|---|---|
| CN (1) | CN218665221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116372526A (en) * | 2023-03-31 | 2023-07-04 | 东方电气集团东方电机有限公司 | A method of dismantling the hydraulic generator brake in the pit |
| CN116545186A (en) * | 2023-04-25 | 2023-08-04 | 中国长江电力股份有限公司 | A ring slide rail car working vehicle used for overhauling generator stator |
-
2022
- 2022-08-12 CN CN202222133937.9U patent/CN218665221U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116372526A (en) * | 2023-03-31 | 2023-07-04 | 东方电气集团东方电机有限公司 | A method of dismantling the hydraulic generator brake in the pit |
| CN116545186A (en) * | 2023-04-25 | 2023-08-04 | 中国长江电力股份有限公司 | A ring slide rail car working vehicle used for overhauling generator stator |
| CN116545186B (en) * | 2023-04-25 | 2024-03-29 | 中国长江电力股份有限公司 | An annular slide car working vehicle used for generator stator maintenance |
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