CN113086832A - Auxiliary hoisting structure and method for stator of hydraulic turbine set of hydropower station - Google Patents
Auxiliary hoisting structure and method for stator of hydraulic turbine set of hydropower station Download PDFInfo
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- CN113086832A CN113086832A CN202110519031.8A CN202110519031A CN113086832A CN 113086832 A CN113086832 A CN 113086832A CN 202110519031 A CN202110519031 A CN 202110519031A CN 113086832 A CN113086832 A CN 113086832A
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- stator
- balance beam
- connecting disc
- hoisting structure
- bearing rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a hydropower station turbine unit stator auxiliary hoisting structure and a hoisting method, wherein the hydropower station turbine unit stator auxiliary hoisting structure comprises a balance beam and a connecting disc which is positioned below the center position of the balance beam and connected with the center position of the balance beam through a connecting column, and the center line of the balance beam, the axis of the connecting column and the axis of the connecting disc are superposed; at least three supporting arms are uniformly distributed on the circumferential direction of the connecting disc, one end of each supporting arm is connected with the side wall of the connecting disc, and the other end of each supporting arm deviates from the connecting disc; a bearing rod is detachably connected to the position, away from the connecting disc, of each supporting arm, each bearing rod is parallel to the axis of the connecting disc, and a bearing block is arranged at one end, away from the balance beam, of each bearing rod; the upper end face of the balance beam is provided with hanging lugs which are symmetrical relative to the central line of the balance beam. The invention can effectively improve the stability of the stator in the hoisting process, further avoid the economic loss caused by the damage of the stator, and is beneficial to improving the overall construction efficiency and shortening the construction period.
Description
Technical Field
The invention belongs to the technical field of hoisting of heavy precision instruments, and particularly relates to a hydropower station hydraulic turbine unit stator auxiliary hoisting structure and a hoisting method.
Background
In the installation and construction process of the hydroelectric generating set stator, the stator needs to be hoisted, the requirement on the stability of the hoisting process is high during hoisting, and the stator damage caused by the instability of the hoisting process needs to be avoided as much as possible.
In traditional hoist and mount operation, adopt wire rope to hang the method of hanging usually, hang the stator through wire rope promptly and then hoist with the cooperation of bridge crane, its hoist and mount stability is extremely poor, and the operation degree of difficulty is very big, hardly satisfies hoist and mount stable demand. In the hoisting process, the phenomenon that the steel wire rope is beaten and stirred is easy to occur, the stator suspended by the steel wire rope can move irregularly after the steel wire rope is beaten and stirred, so that the hoisting is unstable, the stator is easy to damage, the stator is large-scale precision equipment, the manufacturing cost is high, the manufacturing period is long, and once the stator is damaged, the large economic loss can be caused, the integral construction efficiency is indirectly reduced, and the construction period is greatly prolonged.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the auxiliary hoisting structure and the hoisting method for the stator of the hydroelectric generating set, which can effectively improve the stability of the hoisting process of the stator, further avoid economic loss caused by damage of the stator, are favorable for improving the overall construction efficiency and shorten the construction period.
In order to solve the technical problems, the invention is realized by the following technical scheme:
an auxiliary hoisting structure for a stator of a hydroelectric generating set comprises a balance beam and a connecting disc, wherein the connecting disc is positioned below the center of the balance beam and is connected with the center of the balance beam through a connecting column, and the center line of the balance beam, the axis of the connecting column and the axis of the connecting disc are coincided; at least three supporting arms are uniformly distributed on the circumferential direction of the connecting disc, one end of each supporting arm is connected with the side wall of the connecting disc, and the other end of each supporting arm deviates from the connecting disc; a bearing rod is detachably connected to the position, away from the connecting disc, of each supporting arm, each bearing rod is parallel to the axis of the connecting disc, and a bearing block is arranged at one end, away from the balance beam, of each bearing rod; and the upper end surface of the balance beam is provided with hanging lugs which are symmetrical relative to the central line of the balance beam.
Further, each of the carrier bars is equidistant from an axis of the connecting disc.
Furthermore, each support arm is provided with a first through hole, each bearing rod is provided with a thread, and the upper end of the bearing rod corresponding to each support arm penetrates through the first through hole and then is connected with the thread on the bearing rod in a matched mode through a nut.
Further, one end of each supporting arm is detachably connected with the side wall of the connecting disc.
Further, one end of each supporting arm is connected with the side wall of the connecting disc through a bolt-nut assembly.
Furthermore, the connecting column is detachably connected with the balance beam and the connecting disc.
Further, the central point of compensating beam puts and has seted up the second through-hole, follow on the up end of compensating beam the circumference of second through-hole is provided with the stopper, the upper end of spliced pole is passed behind the second through-hole through the clamp with the stopper cooperation is fixed.
Furthermore, a plurality of third through holes are formed in the connecting disc, a connecting plate is fixed to the lower end of the connecting column, fourth through holes corresponding to the third through holes are formed in the connecting plate, a screw rod penetrates through each third through hole and the corresponding fourth through hole, and each screw rod is matched with a nut to fix the connecting column and the connecting disc.
Furthermore, eight supporting arms are uniformly distributed in the circumferential direction of the connecting disc.
A use method of an auxiliary hoisting structure of a hydroelectric generating set stator comprises the following steps:
moving the balance beam and a connecting disc which is positioned below the center position of the balance beam and connected with the center position of the balance beam through a connecting column to a position right above a stator to be hoisted;
the upper end of each bearing rod penetrates through the inner cavity of the stator and then is connected with the corresponding supporting arm, and meanwhile, the bearing blocks arranged on each bearing rod are ensured to support the lower end of the stator;
and connecting the hanging lug with a lifting hook of a lifting power device, and starting the lifting power device to hoist the stator.
Compared with the prior art, the invention has at least the following beneficial effects: when the auxiliary hoisting structure for the hydroelectric generating set stator provided by the invention is used, firstly, the balance beam and the connecting disc which is positioned below the central position of the balance beam and connected with the central position of the balance beam through the connecting column are moved to the position right above the stator to be hoisted; then, the upper end of each bearing rod penetrates through the inner cavity of the stator and is connected with the corresponding supporting arm, meanwhile, the bearing blocks arranged on each bearing rod are ensured to support the lower end of the stator, and the stator is completely supported by all the bearing blocks after inspection; and finally, the hanging lug is connected with a lifting hook of the lifting power device, and the lifting power device is started to hoist the stator. In the installation and construction process of the hydroelectric generating set stator, the auxiliary hoisting structure is used for hoisting the stator, because the stator is supported by the bearing blocks on the bearing rods, the central line of the balance beam, the axis of the connecting column and the axis of the connecting disc coincide, the auxiliary hoisting structure is balanced in stress, and the balance beam is connected with the connecting disc through the connecting column, the phenomenon that the stator shakes does not exist in the whole hoisting process.
Furthermore, the distance from each bearing rod to the axis of the connecting disc is equal, so that the stress balance of the auxiliary hoisting structure is ensured, and the hoisting process is more stable.
Furthermore, each supporting arm is provided with a first through hole, each bearing rod is provided with a thread, the upper end of the bearing rod corresponding to each supporting arm penetrates through the first through hole and then is connected with the thread on the bearing rod in a matched mode through a nut, and the dismounting and connecting mode is beneficial to dismounting and mounting between the supporting arms and the bearing rods, so that the working efficiency is improved, and the structural connection is simple, safe and reliable.
Furthermore, one end of each supporting arm is detachably connected with the side wall of the connecting disc, so that the auxiliary hoisting structure is convenient to transport.
Furthermore, one end of each supporting arm is connected with the side wall of the connecting disc through the bolt and nut assembly, the structural design is simple, and the mounting and the dismounting are convenient.
Furthermore, the connecting column, the balance beam and the connecting disc are detachably connected, so that the auxiliary hoisting structure is convenient to transport, the connecting column, the balance beam and the connecting disc are disassembled to transport in the transportation process, and the connecting column, the balance beam and the connecting disc are assembled when arriving at a use site, so that the practicability is high.
Furthermore, the center of the balance beam is provided with the second through hole, the upper end surface of the balance beam is provided with the limiting block along the circumferential direction of the second through hole, the upper end of the connecting column penetrates through the second through hole and then is matched and fixed with the limiting block through the clamp, the dismounting and connecting mode is favorable for dismounting and mounting between the connecting column and the balance beam, the working efficiency is improved, and the structural connection is simple, safe and reliable.
Furthermore, the connecting disc is provided with a plurality of third through holes, the lower end of each connecting column is fixedly provided with the connecting plate, the connecting plate is provided with fourth through holes corresponding to the third through holes, each third through hole and the corresponding fourth through hole are provided with a screw rod in a penetrating mode, and the connecting columns and the connecting disc are fixed by matching of the screw rods and nuts.
Furthermore, the circumference equipartition of connection pad is provided with eight support arms, and through verifying, should arrange that the reliability is higher under the lower prerequisite of assurance cost again.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of an auxiliary hoisting structure for a hydroelectric generating set stator of a hydroelectric power station of the present invention;
FIG. 2 is a top view of a connecting disc and a supporting arm of an auxiliary hoisting structure of a hydroelectric generating set stator;
fig. 3 is a front view of an auxiliary hoisting structure of a hydroelectric power station turbine set stator in cooperation with a stator and a lifting hook of a hoisting power device.
In the figure: 1-a balance beam; 2-connecting a column; 3-a connecting disc; 4-a support arm; 5-a carrier bar; 6-a bearing block; 7-hanging a lug; 8-a nut; 9-a connecting plate; 10-a first via; 11-a second via; 12-a third via; 13-a limiting block; 14-a hoop; 15-screw rod; 16-a stator; 17-hook.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an auxiliary hoisting structure for a stator of a hydroelectric station hydraulic turbine set, and aims to hoist the stator by using the auxiliary hoisting structure in the installation and construction process of the stator of the hydroelectric station hydraulic turbine set, so that the stator can be hoisted stably in the hoisting process.
As a specific embodiment of the present invention, referring to fig. 1 and 2, an auxiliary hoisting structure for a stator of a hydroelectric generating set includes a balance beam 1 and a connecting plate 3 located below a center position of the balance beam 1 and connected to the center position of the balance beam 1 through a connecting column 2, that is, the balance beam 1 and the connecting plate 3 are connected through the connecting column 2. As shown in fig. 2, in the present embodiment, the land 3 has a structure similar to a cylindrical shape. In order to balance the stress of the auxiliary hoisting structure, the central line of the balance beam 1, the axis of the connecting column 2 and the axis of the connecting disc 3 need to be ensured to coincide. As a preferred embodiment, in order to facilitate the transportation of the auxiliary hoisting structure in the transportation process, the connecting column 2 is detachably connected with the balance beam 1 and the connecting disc 3. In this embodiment, as shown in fig. 1, the second through hole 11 has been seted up at the central point of compensating beam 1, is provided with stopper 13 along the circumference of second through hole 11 on the up end of compensating beam 1, and it is fixed with stopper 13 to pass through clamp 14 after second through hole 11 is passed to the upper end of spliced pole 2, and this design makes the installation dismantle extremely convenient. As shown in fig. 2, a plurality of third through holes 12 are formed in the connection disc 3, in this embodiment, eight third through holes 12 are formed in the connection disc 3, the connection plate 9 is fixed to the lower end of the connection column 2, a fourth through hole corresponding to the third through hole 12 is formed in the connection plate 9, a screw 15 penetrates through each third through hole 12 and the corresponding fourth through hole, and each screw 15 is matched with the nut 8 to fix the connection column 2 and the connection disc 3.
As shown in fig. 2, at least three support arms 4 are uniformly distributed on the connecting disc 3 in the circumferential direction, one end of each support arm 4 is connected with the side wall of the connecting disc 3, and the other end of each support arm deviates from the connecting disc 3. In this embodiment, eight support arms 4 are uniformly distributed in the circumferential direction of the connection disc 3. As preferred embodiment, the one end of every support arm 4 can be dismantled with the lateral wall of connection pad 3 and be connected, when needs transportation auxiliary hoisting structure, alright carry out the split with support arm 4 and connection pad 3, be favorable to auxiliary hoisting structure's transportation, when transporting the use scene, assemble support arm 4 and connection pad 3 again. Preferably, one end of each supporting arm 4 is connected with the side wall of the connecting disc 3 through a bolt-nut assembly, so that the mounting and the dismounting are very convenient.
As shown in fig. 1, a bearing rod 5 is detachably connected to a position, away from the connecting disc 3, of each supporting arm 4, each bearing rod 5 is parallel to the axis of the connecting disc 3, a bearing block 6 is arranged at one end, away from the balance beam 1, of each bearing rod 5, as shown in fig. 3, when the lifting device is used for lifting, the bearing rods 5 are detached from the supporting arms 4, then the upper ends of the bearing rods 5 penetrate through the stator 16 and then are connected with the supporting arms 4, and the lower ends of the stator 16 are supported by the bearing blocks 6. Each carrier bar 5 is equidistant from the axis of the connecting disc 3. in the embodiment shown in fig. 1 and 2, each support arm 4 is arranged at an end position of the support arm 4 facing away from the connecting disc 3. As shown in fig. 2, each support arm 4 is provided with a first through hole 10, each support rod 5 is provided with a thread, the upper end of each support arm 4 corresponding to the support rod 5 passes through the first through hole 10 and then is connected with the support rod 5 through the nut 8 in a thread fit manner, the nut is connected with the support rod 5 in a thread fit manner, the support rod 5 is convenient to detach and mount, the structural design is simple, and the mechanical connection is reliable.
As shown in fig. 1, the upper end surface of the balance beam 1 is provided with the suspension loops 7 which are symmetrical relative to the center line of the balance beam 1, and as shown in fig. 3, the suspension loops 7 are used for connecting the auxiliary hoisting structure with the lifting hook 17 of the hoisting power device, preferably, the two suspension loops 7 are respectively arranged at the positions close to the end part of the balance beam 1, so that the force arm is increased, and the labor is saved.
As shown in fig. 3, the use method of the auxiliary hoisting structure for the stator of the hydraulic turbine set of the hydropower station of the invention specifically comprises the following steps:
firstly, moving the auxiliary hoisting structure to be right above a stator 16 to be hoisted, namely moving a balance beam 1 and a connecting disc 3 which is positioned below the center position of the balance beam 1 and connected with the center position of the balance beam 1 through a connecting column 2 to be right above the stator 16 to be hoisted;
then, the upper end of each bearing rod 5 passes through the inner cavity of the stator 16 and then is connected with the corresponding supporting arm 4, and meanwhile, the bearing block 6 arranged on each bearing rod 5 is ensured to support the lower end of the stator 16; in the embodiment, after the upper end of each carrier bar 5 passes through the inner cavity of the stator 16, the upper end of each carrier bar 5 extends out of the first through hole 10 formed in the support arm 4, and the carrier bar 5 and the corresponding support arm 4 are fixed by using the threaded fit of the nut 8 and the carrier bar 5;
finally, the hanging lug 7 is connected with a hanging hook 17 of the hoisting power device, specifically, after the hanging hook 17 is matched with the hanging lug 7, the hanging hook 17 and the hanging lug 7 are locked by using a bolt, the unhooking phenomenon in the hoisting process is prevented, and the hoisting power device is started to hoist the stator 16.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The auxiliary hoisting structure for the stator of the hydroelectric generating set is characterized by comprising a balance beam (1) and a connecting disc (3) which is positioned below the center of the balance beam (1) and connected with the center of the balance beam (1) through a connecting column (2), wherein the center line of the balance beam (1), the axis of the connecting column (2) and the axis of the connecting disc (3) are coincided; at least three supporting arms (4) are uniformly distributed on the circumferential direction of the connecting disc (3), one end of each supporting arm (4) is connected with the side wall of the connecting disc (3), and the other end of each supporting arm deviates from the connecting disc (3); a bearing rod (5) is detachably connected to the position, deviating from the connecting disc (3), of each supporting arm (4), each bearing rod (5) is parallel to the axis of the connecting disc (3), and a bearing block (6) is arranged at one end, far away from the balance beam (1), of each bearing rod (5); the upper end face of the balance beam (1) is provided with lugs (7) which are symmetrical relative to the central line of the balance beam (1).
2. A hydroelectric generating set stator auxiliary hoisting structure according to claim 1, wherein each of the load-bearing bars (5) has an equal distance to the axis of the connecting disc (3).
3. The auxiliary hoisting structure of the stator of the hydroelectric generating set of the hydropower station according to claim 1, wherein each support arm (4) is provided with a first through hole (10), each bearing rod (5) is provided with a thread, and the upper end of the bearing rod (5) corresponding to each support arm (4) is connected with the thread on the bearing rod (5) in a matching manner through a nut (8) after passing through the first through hole (10).
4. The auxiliary hoisting structure of the stator of the hydroelectric generating set of claim 1, wherein one end of each supporting arm (4) is detachably connected with the side wall of the connecting disc (3).
5. The auxiliary hoisting structure of the stator of the hydroelectric generating set of claim 4, wherein one end of each supporting arm (4) is connected with the side wall of the connecting plate (3) through a bolt-nut assembly.
6. The auxiliary hoisting structure of the stator of the hydroelectric generating set of claim 1, wherein the connecting column (2) is detachably connected with the balance beam (1) and the connecting disc (3).
7. The auxiliary hoisting structure for the stator of the hydroelectric generating set of the hydropower station according to claim 6, wherein a second through hole (11) is formed in the center of the balance beam (1), a limiting block (13) is arranged on the upper end surface of the balance beam (1) along the circumferential direction of the second through hole (11), and the upper end of the connecting column (2) is fixed to the limiting block (13) through a clamp (14) after passing through the second through hole (11).
8. The auxiliary hoisting structure of the stator of the hydroelectric generating set of the hydropower station according to claim 7, wherein a plurality of third through holes (12) are formed in the connecting disc (3), a connecting plate (9) is fixed at the lower end of the connecting column (2), a fourth through hole corresponding to the plurality of third through holes (12) is formed in the connecting plate (9), a screw (15) penetrates through each third through hole (12) and the corresponding fourth through hole, and each screw (15) is matched with a nut (8) to fix the connecting column (2) and the connecting disc (3).
9. The auxiliary hoisting structure of the stator of the hydroelectric generating set of claim 1, wherein eight supporting arms (4) are uniformly distributed on the connecting disc (3) in the circumferential direction.
10. Use of a structure for assisting the hoisting of a hydroelectric generating set stator according to any of claims 1 to 9, comprising:
moving the balance beam (1) and a connecting disc (3) which is located below the center position of the balance beam (1) and connected with the center position of the balance beam (1) through a connecting column (2) to a position right above a stator (16) to be hoisted;
the upper end of each bearing rod (5) penetrates through the inner cavity of the stator (16) and then is connected with the corresponding supporting arm (4), and meanwhile, the bearing block (6) arranged on each bearing rod (5) is ensured to support the lower end of the stator (16);
and connecting the hanging lug (7) with a lifting hook (17) of a hoisting power device, and starting the hoisting power device to hoist the stator (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110519031.8A CN113086832A (en) | 2021-05-12 | 2021-05-12 | Auxiliary hoisting structure and method for stator of hydraulic turbine set of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110519031.8A CN113086832A (en) | 2021-05-12 | 2021-05-12 | Auxiliary hoisting structure and method for stator of hydraulic turbine set of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113086832A true CN113086832A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110519031.8A Pending CN113086832A (en) | 2021-05-12 | 2021-05-12 | Auxiliary hoisting structure and method for stator of hydraulic turbine set of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113086832A (en) |
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2021
- 2021-05-12 CN CN202110519031.8A patent/CN113086832A/en active Pending
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