CN220787866U - Single-arm main and auxiliary lifting rotary crane structure of hydropower station - Google Patents
Single-arm main and auxiliary lifting rotary crane structure of hydropower station Download PDFInfo
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- CN220787866U CN220787866U CN202322328553.7U CN202322328553U CN220787866U CN 220787866 U CN220787866 U CN 220787866U CN 202322328553 U CN202322328553 U CN 202322328553U CN 220787866 U CN220787866 U CN 220787866U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 238000004804 winding Methods 0.000 claims description 24
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a single-arm main and auxiliary lifting rotary crane structure of a hydropower station, which relates to the technical field of lifting machinery and comprises an extension beam, a rotary mechanism, a main lifting mechanism and an auxiliary lifting mechanism, wherein the main lifting mechanism and the auxiliary lifting mechanism are both arranged on the rotary mechanism, the main lifting mechanism is close to the rotary center of the rotary mechanism, the auxiliary lifting mechanism is far away from the rotary center of the rotary mechanism, the auxiliary lifting mechanism is arranged in front of the main lifting mechanism, the lifting weight of the main lifting mechanism is large, and the overturning moment is large, and the main lifting mechanism is arranged behind and close to the rotary center of the rotary mechanism, so that the stability control of a door machine is facilitated. The reels of the main hoisting mechanism and the auxiliary hoisting mechanism are wound in multiple layers, so that the size of the hoisting mechanism can be reduced, the arrangement of the main hoisting mechanism and the auxiliary hoisting mechanism is more compact, and the stability control is facilitated. The auxiliary lifting steel wire rope bypasses the auxiliary lifting guide wheel, and the problem that the rotary lifting steel wire rope arranged in the type is easy to interfere is effectively solved by adding the guide wheel.
Description
Technical Field
The utility model relates to the technical field of hoisting machinery, in particular to a single-arm main and auxiliary hoisting rotary crane structure of a hydropower station.
Background
Along with the development of the hydropower industry, the total installed capacity of the hydropower station is continuously developed to a large-scale direction, and the gantry crane is taken as one of main equipment of the hydropower station and is also advancing to a large-capacity, high-lift and large-span direction. In order to achieve the aim of multiple purposes of one machine, more and more slewing cranes are arranged on the gantry crane, and the arrangement of the slewing cranes for lifting the main crane and the auxiliary crane is gradually increased.
The main hook of the existing rotary crane with main and auxiliary lifting arrangement on a single arm has large opening and closing capacity and the auxiliary hook has small opening and closing capacity. The difference of turning radius of the main hook and the auxiliary hook is smaller and is about 1 m to 2m. The larger turning radius and opening and closing capacity have great influence on the stability of the door machine, and when the stability of the door machine is poor, the door machine overturns, so that serious accidents occur.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a single-arm main and auxiliary lifting rotary crane structure of a hydropower station, so as to solve the problem that the larger radius of gyration and the opening and closing capacity have great influence on the stability of a gantry crane. In the utility model, the main lifting mechanism and the auxiliary lifting mechanism are both arranged on the rotary platform, the rotary platform is connected with the door machine through the rotary mechanism, wherein the main lifting mechanism is close to the rotary center of the rotary crane, the auxiliary lifting mechanism is far away from the rotary center of the rotary crane, the auxiliary lifting mechanism is arranged in front of the main lifting mechanism, the lifting weight of the main lifting mechanism is large, the overturning moment is large, and the main lifting mechanism is arranged behind the main lifting mechanism and close to the rotary center, so that the stability control of the door machine is facilitated.
In order to achieve the above purpose, the present utility model adopts the technical scheme that:
a single-arm main and auxiliary lifting rotary crane structure of a hydropower station, comprising:
an extension beam arranged on a hydropower station door machine;
the rotary mechanism is arranged on the extension beam, a rotary platform is arranged on the rotary mechanism, a cantilever crane which extends upwards and outwards obliquely is arranged on the rotary platform, and the middle upper part of the cantilever crane is connected with a pull rod;
the main lifting mechanism is arranged on the rotary platform, is close to the rotary center of the rotary mechanism and is wound with a main lifting steel wire rope, and the main lifting steel wire rope penetrates through a main lifting pulley block at the middle upper end of the arm support and is connected with a main hook for lifting a door machine to span an outer gate;
the auxiliary lifting mechanism is arranged on the rotary platform, is far away from the rotary center of the rotary mechanism and is wound with an auxiliary lifting steel wire rope, and an auxiliary hook for cleaning dirt in front of the dam is connected after the auxiliary lifting steel wire rope passes through an auxiliary lifting pulley block at the front end of the arm support.
Preferably, the main lifting mechanism and the auxiliary lifting mechanism comprise a driving motor, a speed reducer and a winding drum; the output shaft of the driving motor is connected with the input shaft of the speed reducer, and the output shaft of the speed reducer is connected with the winding drum.
Preferably, the winding drum of the main lifting mechanism is a duplex multilayer winding drum, and the winding drum of the auxiliary lifting mechanism is a single-duplex multilayer winding drum.
Preferably, the arm support comprises a lower inclined rod section and an upper inclined plate section, an auxiliary lifting guide wheel is arranged at the top end of the inclined plate section, and the auxiliary lifting steel wire rope passes through the auxiliary lifting guide wheel and then passes through the auxiliary lifting pulley block.
Preferably, the main lifting pulley block and the auxiliary lifting pulley block comprise an upper pulley and a lower pulley, the upper pulley is a fixed pulley and is arranged at the top end of the arm support, and the lower pulley is a movable pulley and is positioned below the top end of the arm support.
Preferably, the pull rod comprises a portal door leg and a tie rod, the bottom end of the portal door leg is arranged on the extension beam, the top end of the portal door leg is connected with the tie rod, and the tie rod horizontally extends outwards and is connected with the middle upper part of the arm support.
Preferably, the revolving mechanism is provided with a ladder flat rail cab.
Preferably, the swing mechanism is covered with a protective cover.
The utility model has the beneficial effects that:
according to the single-arm main and auxiliary lifting rotary crane structure of the hydropower station, the main lifting mechanism and the auxiliary lifting mechanism are both arranged on the rotary mechanism, the main lifting mechanism is close to the rotary center of the rotary mechanism, the auxiliary lifting mechanism is far away from the rotary center of the rotary mechanism, the auxiliary lifting mechanism is arranged in front of the main lifting mechanism, the lifting weight of the main lifting mechanism is large, the overturning moment is large, and the main lifting mechanism is arranged behind and close to the rotary center of the rotary mechanism, so that the stability control of a door machine is facilitated. The reels of the main hoisting mechanism and the auxiliary hoisting mechanism are wound in multiple layers, so that the size of the hoisting mechanism can be reduced, the arrangement of the main hoisting mechanism and the auxiliary hoisting mechanism is more compact, and the stability control is facilitated. The auxiliary lifting steel wire rope bypasses the auxiliary lifting guide wheel, and the problem that the rotary lifting steel wire rope arranged in the type is easy to interfere is effectively solved by adding the guide wheel.
The single-arm main and auxiliary lifting rotary crane structure of the hydropower station provided by the utility model has the advantages that the main lifting mechanism drives the main hook to move, the lifting tonnage of the main hook is large, and the main hook is mainly used for lifting gates and the like outside a gantry crane span; the auxiliary lifting mechanism drives the auxiliary hook to move, the auxiliary hook has smaller lifting tonnage and is mainly used for cleaning dirt in front of the dam; the turning mechanism drives the main lifting mechanism and the auxiliary lifting mechanism to rotate and drives the whole turning crane to rotate and move, and the turning is matched with the cart running mechanism, so that the weight of the whole dam surface can be lifted under the turning radius.
Drawings
FIG. 1 is a schematic diagram of a single-arm main and auxiliary lifting rotary crane structure of a hydropower station;
FIG. 2 is a layout diagram of a main and an auxiliary hoisting mechanism of a single-arm main and auxiliary hoisting rotary crane structure of the hydropower station;
reference numerals:
1. an extension beam; 2. a slewing mechanism; 3. arm support; 4. a pull rod; 5. a main lifting mechanism; 6. a main hoisting wire rope; 7. a main lifting pulley block; 8. a main hook; 9. an auxiliary lifting mechanism; 10. auxiliary hoisting steel wire rope; 11. an auxiliary lifting pulley block; 12. an auxiliary hook; 13. a driving motor; 14. a speed reducer; 15. a reel; 16. a diagonal rod segment; 17. a swash plate section; 18. an auxiliary lifting guide wheel; 19. an upper pulley; 20. a lower pulley; 21. a portal leg; 22. a cross pull rod; 23. ladder flat rail cab; 24. and a protective cover.
Detailed Description
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model.
Example 1
A single-arm main and auxiliary lifting rotary crane structure of a hydropower station, as shown in fig. 1 and 2, comprises:
an extension beam 1 arranged on a hydropower station door machine;
the rotary mechanism 2 is arranged on the extension beam 1, a rotary platform is arranged on the rotary mechanism 2, a cantilever crane 3 which extends upwards and outwards obliquely is arranged on the rotary platform, and the middle upper part of the cantilever crane 3 is connected with a pull rod 4;
the main lifting mechanism 5 is arranged on the rotary platform, the main lifting mechanism 5 is close to the rotary center of the rotary mechanism 2 and is wound with a main lifting steel wire rope 6, and the main lifting steel wire rope 6 passes through a main lifting pulley block 7 at the middle upper end of the arm support 3 and is connected with a main hook 8 for lifting a door machine to span an outer gate;
the auxiliary lifting mechanism 9 is arranged on the rotary platform, the auxiliary lifting mechanism 9 is far away from the rotary center of the rotary mechanism 2 and is wound with an auxiliary lifting steel wire rope 10, and an auxiliary hook 12 for cleaning dirt in front of the dam is connected after the auxiliary lifting steel wire rope 10 passes through an auxiliary lifting pulley block 11 at the front end of the arm support 3.
In the embodiment, the extension beam 1 is used for supporting a rotary lifting structure, the rotary mechanism 2 is used for driving the main lifting mechanism 5 and the auxiliary lifting mechanism 9 to rotate, the main lifting mechanism 5 is used for lifting a gantry crane to span an outer gate, and the auxiliary lifting mechanism 9 is used for lifting and cleaning dirt in front of a dam.
The main lifting mechanism 5 is close to the rotation center of the rotation mechanism 2, the auxiliary lifting mechanism 9 is far away from the rotation center of the rotation mechanism 2, the auxiliary lifting mechanism 9 is arranged in front of the main lifting mechanism 5, the main lifting mechanism 5 is large in lifting weight, and the overturning moment is large, and the auxiliary lifting mechanism 9 is arranged behind and close to the rotation center of the rotation mechanism 2, so that the stability control of the door machine is facilitated.
When the lifting device is used, the main lifting mechanism 5 drives the main lifting steel wire rope 6 to act, and the main lifting steel wire rope 6 slides on the main lifting pulley block 7 to drive the main hook 8 to move up and down to lift a heavy object. The main hook 8 has larger hoisting tonnage and is mainly used for hoisting gates and the like outside a door machine span.
The auxiliary lifting mechanism 9 drives the auxiliary lifting steel wire rope 10 to act, and the auxiliary lifting steel wire rope 10 slides on the auxiliary lifting pulley block 11 to drive the auxiliary hook 12 to move up and down to lift the heavy object. The auxiliary hook 12 has smaller hoisting tonnage and is mainly used for cleaning dirt in front of the dam. The radius of gyration of the secondary hook 12 is 20m and the radius of gyration of the primary hook 8 is 13m, so the radius of gyration of the secondary hook 12 is much larger than the radius of gyration of the primary hook 8.
When the main hook 8 and the auxiliary hook 12 lift the heavy object, the slewing mechanism 2 drives the main hook 8 driven by the main hoisting mechanism 5 and the auxiliary hook 12 driven by the auxiliary hoisting mechanism 9 to rotate, drives the whole slewing crane to rotate and move, and the slewing is matched with the cart running mechanism so as to realize the lifting of the heavy object on the whole dam surface under the slewing radius.
In this embodiment, the revolving mechanism 2 includes a revolving platform, a revolving shaft, a revolving driving motor, and the like, the revolving platform is mounted on the revolving shaft, and the main lifting mechanism 5 and the auxiliary lifting mechanism 9 are both mounted on the revolving platform. The rotary driving motor drives the rotary shaft to move, so that the rotary platform is driven to rotate, and the main lifting mechanism 5 and the auxiliary lifting mechanism 9 on the rotary platform rotate.
Example 2
The embodiment is further described on the basis of embodiment 1, as shown in fig. 1 and 2, the main lifting mechanism 5 and the auxiliary lifting mechanism 9 each comprise a driving motor 13, a speed reducer 14 and a winding drum 15; an output shaft of the driving motor 13 is connected with an input shaft of the speed reducer 14, and an output shaft of the speed reducer 14 is connected with the winding drum 15. The main lifting steel wire rope 6 and the auxiliary lifting steel wire rope 10 are respectively wound on a winding drum 15, the driving motor 13 rotates, the speed reducer 14 reduces the speed of the high-speed rotation of the driving motor 13, and then the winding drum 15 is driven to rotate at a low speed, so that the winding and unwinding of the main lifting steel wire rope 6 and the auxiliary lifting steel wire rope 10 are realized, and further the lifting and lifting of a heavy object are realized.
In this embodiment, the reel 15 of the main hoisting mechanism 5 is a duplex multilayer reel, and the reel 15 of the auxiliary hoisting mechanism 9 is a single-duplex multilayer reel. The winding drum 15 of the main lifting mechanism 5 is arranged as a duplex multilayer winding drum, the duplex multilayer winding drum has small structural size when being capable of being used for arrangement, the multilayer winding strictly controls the deflection angle of the steel wire rope, the phenomenon of disordered winding of the steel wire rope can not occur, and the duplex winding drum with larger lifting capacity is beneficial to the selection of the steel wire rope. The winding drum 15 is wound in multiple layers, so that the size of the lifting mechanism can be reduced, the arrangement of the main lifting mechanism and the auxiliary lifting mechanism is more compact, and the stability control is facilitated.
As shown in fig. 1, the arm support 3 comprises a lower inclined rod section 16 and an upper inclined plate section 17, an auxiliary lifting guide wheel 18 is mounted at the top end of the inclined plate section 17, the auxiliary lifting steel wire rope 10 passes through the auxiliary lifting guide wheel 18 and then passes through the auxiliary lifting pulley block 11, and the auxiliary lifting guide wheel 18 is added to avoid interference of the rotary lifting steel wire rope.
As shown in fig. 1, the main lifting pulley block 7 and the auxiliary lifting pulley block 11 both comprise an upper pulley 19 and a lower pulley 20, the upper pulley 19 is a fixed pulley and is mounted at the top end of the arm support 3, and the lower pulley 20 is a movable pulley and is positioned below the top end of the arm support 3. By arranging the upper pulley 19 and the lower pulley 20 in the above-mentioned form, the winding and unwinding of the steel wire rope and the up-and-down movement of the main hook and the auxiliary hook are facilitated.
As shown in fig. 1, the tie rod 4 includes a portal leg 21 and a tie rod 22, the portal leg 21 is mounted on the extension beam 1 at the bottom end, the top end is connected with the tie rod 22, and the tie rod 22 extends horizontally and outwardly and is connected with the middle upper portion of the arm support 3. The boom 3 is stabilized by providing the tie rods 4 of the portal legs 21 and the tie rods 22 of the above-described form.
As shown in fig. 1, the swing mechanism 2 is provided with a ladder rail cab 23, which is convenient for a driver to operate. The swing mechanism 2 is covered with a protective cover 24 to protect the main lifting mechanism 5 and the auxiliary lifting mechanism 9 and prevent the parts therein from splashing outwards.
For a better understanding of the present utility model, the following is a complete description of the principles of the utility model:
when the hoisting machine is used, the driving motor 13 of the main hoisting mechanism 5 rotates, the speed reducer 14 reduces the speed of the high-speed rotation of the driving motor 13, and then the winding drum 15 is driven to rotate at a low speed, so that the wound main hoisting steel wire rope 6 is wound and unwound. The main lifting steel wire rope 6 slides on the main lifting pulley block 7 to drive the main hook 8 to move up and down to lift a gate and the like outside the door machine span.
The driving motor 13 of the auxiliary lifting mechanism 9 rotates, the speed reducer 14 reduces the speed of the high-speed rotation of the driving motor 13, and then drives the winding drum 15 to rotate at a low speed, so as to retract and release the auxiliary lifting steel wire rope 10 wound by the winding drum. The auxiliary lifting steel wire rope 10 slides on the auxiliary lifting pulley block 11 to drive the auxiliary hook 12 to move up and down to lift and clear dirt in front of the dam.
When the main hook 8 and the auxiliary hook 12 lift the heavy object, the slewing mechanism 2 drives the main hook 8 driven by the main hoisting mechanism 5 and the auxiliary hook 12 driven by the auxiliary hoisting mechanism 9 to rotate, drives the whole slewing crane to rotate and move, and the slewing is matched with the cart running mechanism so as to realize the lifting of the heavy object on the whole dam surface under the slewing radius.
While the embodiments of the present utility model have been described in detail, the present utility model is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (8)
1. A hydropower station single-arm main and auxiliary lifting rotary crane structure is characterized by comprising:
an extension beam (1) arranged on a hydropower station door machine;
the cantilever crane comprises an extension beam (1), a rotating mechanism (2) arranged on the extension beam (1), a rotating platform arranged on the rotating mechanism (2), and a cantilever crane (3) obliquely upwards and outwards extending out of the rotating platform, wherein the middle upper part of the cantilever crane (3) is connected with a pull rod (4);
the main lifting mechanism (5) is arranged on the rotary platform, the main lifting mechanism (5) is close to the rotation center of the rotary mechanism (2) and is wound with a main lifting steel wire rope (6), and a main hook (8) for a gantry crane to cross an outer gate is connected after the main lifting steel wire rope (6) passes through a main lifting pulley block (7) at the middle upper end of the arm support (3);
the auxiliary lifting mechanism (9) is arranged on the rotary platform, the auxiliary lifting mechanism (9) is far away from the rotary center of the rotary mechanism (2) and is wound with an auxiliary lifting steel wire rope (10), and an auxiliary hook (12) for cleaning dirt in front of a dam is connected after the auxiliary lifting steel wire rope (10) passes through an auxiliary lifting pulley block (11) at the front end of the arm support (3).
2. The slewing crane structure according to claim 1, characterized in that the main hoisting mechanism (5) and the auxiliary hoisting mechanism (9) comprise a driving motor (13), a speed reducer (14) and a winding drum (15); an output shaft of the driving motor (13) is connected with an input shaft of the speed reducer (14), and an output shaft of the speed reducer (14) is connected with the winding drum (15).
3. The rotary hanging structure as claimed in claim 2, characterized in that the reel (15) of the main hoisting mechanism (5) is a duplex multilayer reel, and the reel (15) of the auxiliary hoisting mechanism (9) is a single multilayer reel.
4. The rotary crane structure according to claim 1, wherein the boom (3) comprises a lower diagonal rod section (16) and an upper diagonal plate section (17), an auxiliary lifting guide wheel (18) is mounted at the top end of the diagonal plate section (17), and the auxiliary lifting steel wire rope (10) passes through the auxiliary lifting guide wheel (18) and then passes through the auxiliary lifting pulley block (11).
5. The rotary crane structure according to claim 1, wherein the main lifting pulley block (7) and the auxiliary lifting pulley block (11) comprise an upper pulley (19) and a lower pulley (20), the upper pulley (19) is a fixed pulley and is arranged at the top end of the arm support (3), and the lower pulley (20) is a movable pulley and is positioned below the top end of the arm support (3).
6. The swing crane structure according to claim 1, wherein the tie rod (4) comprises a portal leg (21) and a tie rod (22), the portal leg (21) is mounted on the extension beam (1) at the bottom end and connected to the tie rod (22) at the top end, and the tie rod (22) extends horizontally outwards and is connected to the middle upper portion of the boom (3).
7. The swing crane structure according to claim 1, wherein a ladder rail cab (23) is mounted on the swing mechanism (2).
8. A slewing crane structure according to claim 1, characterized in that the slewing mechanism (2) is covered with a protective cover (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322328553.7U CN220787866U (en) | 2023-08-29 | 2023-08-29 | Single-arm main and auxiliary lifting rotary crane structure of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322328553.7U CN220787866U (en) | 2023-08-29 | 2023-08-29 | Single-arm main and auxiliary lifting rotary crane structure of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220787866U true CN220787866U (en) | 2024-04-16 |
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ID=90629311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322328553.7U Active CN220787866U (en) | 2023-08-29 | 2023-08-29 | Single-arm main and auxiliary lifting rotary crane structure of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220787866U (en) |
-
2023
- 2023-08-29 CN CN202322328553.7U patent/CN220787866U/en active Active
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