CN214243520U

CN214243520U - Crane

Info

Publication number: CN214243520U
Application number: CN202022788835.1U
Authority: CN
Inventors: 杨文虎; 于乐乐
Original assignee: Huaibei Shenneng Power Generation Co ltd
Current assignee: Huaibei Shenneng Power Generation Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-21
Anticipated expiration: 2030-11-26

Abstract

The utility model provides a crane relates to power station technical field. The crane comprises a moving frame, a first moving frame and a second moving frame, wherein the moving frame is arranged on a room body of a steam turbine room and can slide relative to the room body along a first direction on a horizontal plane; the first hoisting mechanism is arranged in the middle of the moving frame and can slide on a horizontal plane along a second direction relative to the moving frame, and the first hoisting mechanism can hoist a heavy object to a preset position along the vertical direction; the second hoisting mechanism is arranged on the moving frame and positioned on one side of the first hoisting mechanism, can slide on a horizontal plane along the second direction relative to the moving frame, and can hoist a heavy object to a preset position along the vertical direction; the first direction and the second direction are arranged in a non-parallel mode.

Description

Crane

Technical Field

The utility model relates to a power station technical field especially relates to a crane.

Background

For a conventional thermal power plant, the operating platform of the main turbine is typically arranged at 17 meters level. For making things convenient for the hoist and mount of goods and materials in the steam turbine room, seted up in the steam turbine room and hung the thing hole and be provided with bridge crane, lifted by crane the goods and materials to predetermineeing the position through bridge crane via hanging the thing hole. The steam power plant is provided with two generating sets usually, and the steam turbine room of two sets of generating sets is interior syntropy to be placed, and the centre in the steam turbine room of two generating sets has all been seted up and has been hung the thing hole. Meanwhile, in order to meet the requirements of hoisting equipment with different weights in the steam turbine rooms, a bridge crane is usually arranged in each of the two steam turbine rooms, the two bridge cranes in the two steam turbine rooms are identical in structure and are provided with a main hook assembly and an auxiliary hook assembly, the main hook assembly is used for hoisting heavy materials, and the auxiliary hook assembly is used for hoisting light materials.

For a steam turbine generator unit with only a single unit, no matter a main steam turbine or a feed pump steam turbine, a main plant layout design usually sets a lifting hole at one side of a steam turbine room, as shown in fig. 1, the lifting hole is arranged at one side of the steam turbine room, and in order to meet the lifting requirement of related equipment in the steam turbine room and also consider the lifting of equipment with different weights, a bridge crane with a large lifting capacity and a lifting hook assembly 22 ' is usually adopted, and the lifting hook assembly 22 ' lifts materials from the middle of a moving frame 1 ' of the crane. Because the lifting hole is close to one side of the steam turbine room, the movable frame 1 'stretches across the lifting hole, so that equipment between the lifting hook assembly 22' arranged in the middle of the movable frame 1 'and the wall 5' on the side of the plant cannot be lifted, the lifting utilization rate of the equipment in the lifting hole is severely limited, and the production progress is influenced. Therefore, the technical personnel in the field are dedicated to develop a novel crane, and on the premise of not changing the arrangement of a steam turbine room, equipment with different weights can be hoisted in the whole range of the hoisting hole at lower cost, so that the utilization rate of the hoisting equipment in the hoisting hole is effectively improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a problem that the hoist in order to solve among the prior art can't lift by crane the heavy object that is close to the wall body position of steam turbine room.

In order to achieve the above object, the present invention provides a crane, the crane comprising:

the moving frame is arranged on a room body of the steam turbine room and can slide relative to the room body along a first direction on a horizontal plane;

the first hoisting mechanism is arranged in the middle of the moving frame and can slide on a horizontal plane along a second direction relative to the moving frame, and the first hoisting mechanism can hoist a heavy object to a preset position along the vertical direction;

the second hoisting mechanism is arranged on the moving frame and positioned on one side of the first hoisting mechanism, can slide on a horizontal plane along the second direction relative to the moving frame, and can hoist a heavy object to a preset position along the vertical direction;

the sliding directions of the first direction and the second direction are arranged in a non-parallel mode.

Optionally, the nuclear load of the first hoisting mechanism is greater than the nuclear load of the second hoisting mechanism.

Optionally, the moving vehicle frame includes a first bridge and a second bridge extending along the second direction and disposed opposite to each other, one end of the first hoisting mechanism is mounted on the first bridge and can slide along the first bridge, the other end of the first hoisting mechanism is mounted on the second bridge and can slide along the second bridge, and the second hoisting mechanism is mounted on the first bridge and can slide along the extending direction of the first bridge.

Optionally, the second hoisting mechanism comprises:

a first rail assembly mounted to a bottom of the first bridge frame along the second direction;

a first moving structure mounted on the first rail assembly or the first bridge;

the first electric hoist can be driven by the first moving structure to slide along the first guide rail assembly.

Optionally, the first moving structure is slidably mounted on and can slide along the first rail assembly, and the first electric hoist is mounted on the first moving structure.

Optionally, the crane further comprises a third hoisting mechanism mounted on the second bridge and slidable in the extension direction of the second bridge.

Optionally, the second lifting mechanism can lift the weight from different initial heights to preset positions of different heights.

Optionally, the third hoisting mechanism further comprises:

a second rail assembly mounted to a bottom of the second bridge frame along the second direction;

a second moving structure mounted on the second rail assembly or the second bridge;

the second electric hoist can be driven by the second moving structure to slide along the second guide rail assembly.

Optionally, along the second direction, one or both ends of the first bridge frame are provided with a suspension, and the first rail assembly extends from the first bridge frame to the suspension.

Optionally, one or both ends of the second bridge frame are provided with a suspension, and the second rail assembly extends from the second bridge frame to the suspension.

The utility model has the advantages that:

the utility model provides a hoist is including moving vehicle frame and being used for lifting by crane the first hoisting mechanism and the second hoisting mechanism of heavy object. The first lifting mechanism is arranged in the middle of the moving frame and can slide on the horizontal plane along the second direction relative to the moving frame. The second hoisting mechanism is arranged on the movable frame and located on one side of the first hoisting mechanism, the second hoisting mechanism can slide on the horizontal plane along the second direction relative to the movable frame, and the second hoisting mechanism can hoist the heavy object to a preset position along the vertical direction. Because of set up the second hoisting mechanism in one side of first hoisting mechanism to lift by crane the heavy object that is located between first hoisting mechanism and the wall body, solve the technical problem that current hoist can't lift by crane the heavy object that is close to the wall body position of steam turbine room, and then improve production efficiency.

Drawings

FIG. 1 is a left side view of a prior art crane installation location;

fig. 2 is a left side view of an installation position of the crane according to the embodiment of the present invention;

fig. 3 is a front view of a mounting position of a crane according to an embodiment of the present invention.

In fig. 1:

1', a moving frame; 22', a hook assembly; 5' and a wall body.

In fig. 2 and 3:

1. moving the frame; 11. a first bridge frame; 12. a second bridge;

2. a first hoisting mechanism; 21. a carriage; 22. a hook assembly; 221. a main hook assembly; 222. a secondary hook assembly;

3. a second hoisting mechanism; 31. a first electric hoist; 32. a first moving structure; 33. a first rail assembly; 34. a cable;

4. a third hoisting mechanism; 41. a second electric hoist; 42. a second moving structure; 43. a second rail assembly;

5. a wall body.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention.

As shown in fig. 2 and 3, the present invention provides a crane. The crane comprises a travelling carriage 1, a first hoisting mechanism 2 and a second hoisting mechanism 3. The travelling carriage 1 is mounted on the body of the steam turbine room and is able to slide in a first direction (i.e. the Y-direction in fig. 2) relative to the body in a horizontal plane. The first lifting mechanism 2 is installed at the middle of the moving frame 1 and can slide on a horizontal plane in a second direction (i.e., X direction in fig. 3) relative to the moving frame 1, and the first lifting mechanism 2 can lift the heavy object in a vertical direction to a preset position. The second hoisting mechanism 3 is installed on the moving frame 1 and located at one side of the first hoisting mechanism 2, the second hoisting mechanism 3 can slide on the horizontal plane along the second direction relative to the moving frame 1, and the second hoisting mechanism 3 can hoist the heavy object to a preset position along the vertical direction (i.e. the Z direction in fig. 2 and 3). The first direction and the second direction are arranged in a non-parallel manner, and preferably, the first direction and the second direction are perpendicular to each other.

Specifically, in this embodiment, the second hoisting mechanism 3 is disposed on one side of the first hoisting mechanism 2 to hoist the heavy object located between the first hoisting mechanism 2 and the wall 5, so that the technical problem that the existing crane cannot hoist the heavy object located near the wall 5 of the steam turbine room is solved, and the production efficiency is further improved.

Optionally, the moving frame 1 includes a first bridge 11 and a second bridge 12 extending along the second direction and arranged oppositely, one end of the first hoisting mechanism 2 is mounted on the first bridge 11 and can slide along the first bridge 11, and the other end of the first hoisting mechanism 2 is mounted on the second bridge 12 and can slide along the second bridge 12, so that the first hoisting mechanism 2 can slide to different positions relative to the first bridge 11 along the second direction within the width of the hoisting hole of the steam turbine room, and further hoist the heavy object at the corresponding position. The second hoisting mechanism 3 is mounted on the first crane span structure 11 and can slide along the extending direction of the first crane span structure 11, so that the second hoisting mechanism 3 can slide to different positions relative to the second crane span structure 12 along the second direction within the width of the hoisting hole of the steam turbine room, and further, can hoist the heavy objects on the corresponding positions.

Specifically, in the present embodiment, the first lifting mechanism 2 includes a carriage 21 and a hook assembly 22, the hook assembly 22 is mounted on the carriage 21, one end of the carriage 21 is slidably connected to the first bridge 11, the other end of the carriage 21 is slidably connected to the second bridge 12, and the carriage 21 can slide along the extending direction of the first bridge 11 and the second bridge 12, so as to drive the hook assembly 22 mounted on the carriage 21 to slide along the second direction.

Further, the hook assembly 22 includes a main hook assembly 221 and a sub-hook assembly 222. The nuclear load of the main hook assembly 221 is 100-200t, and the lifting height is 96 m. The nuclear load of the auxiliary hook assembly 222 is 30-100t, and the lifting height is 96 m. According to the production safety requirement, the larger the mass of the lifted heavy object is, the smaller the lifting speed is, so as to ensure the lifting safety. Therefore, it takes not less than 1 hour to lift the heavy object from 0m to 96m by the main hook unit 221, and it takes not less than 30 minutes to lift the heavy object from 0m to 96m by the sub hook unit 222.

In other embodiments, the hook assembly 22 may be provided with only the main hook assembly 221 and without the auxiliary hook assembly 222, and the lifting height may be 17m or another distance, and the load of the main hook assembly 221 may be another weight, as required, which is not limited herein.

Optionally, the second hoisting mechanism 3 comprises a first rail assembly 33, a first moving structure 32 and a first electric block 31. The first rail assembly 33 is mounted to the bottom of the first bridge 11 in the second direction. The first moving structure 32 is mounted on a first rail assembly 33. The first moving structure 32 can drive the first electric block 31 to slide along the first guide rail assembly 33.

Specifically, in the embodiment, on the one hand, the nuclear load of the first electric hoist 31 provided in the second hoisting mechanism 3 is smaller than the nuclear load of the main hook assembly 221 and the auxiliary hook assembly 222, for example, the nuclear load is 20kg, so that the hoisting speed is increased, and the working efficiency is improved; on the other hand, the first electric hoist 31 can set different initial hoisting heights, and can hoist the heavy object to positions with different heights, thereby improving the flexibility of the crane.

Exemplarily, the first moving structure 32 includes a first sliding support, and a first sliding motor and a sliding roller both mounted on the first sliding support, the sliding roller is slidably connected to the first rail assembly 33, and the first electric hoist 31 is mounted on the first sliding support. The first sliding motor achieves electricity taking through the cable 34, and drives the sliding roller to roll, so that the first sliding support can move along the first guide rail assembly 33.

Of course, in other embodiments, the first moving structure 32 may be mounted on the first bridge 11 as long as the first electric hoist 31 can be driven to slide along the first rail assembly 33.

Optionally, the crane further comprises a third hoisting mechanism 4, the third hoisting mechanism 4 being mounted on the second bridge 12 and being slidable in the extension direction of the second bridge 12. On one hand, when the crane is located at a position close to one side of the wall body 5, the second hoisting mechanism 3 is used for hoisting a heavy object between the first hoisting mechanism 2 and the side wall body 5, and the third hoisting mechanism 4 can flexibly move in the second direction to be matched with the first hoisting mechanism 2 and the second hoisting mechanism 3 to hoist more heavy objects, so that the working efficiency of the crane is improved; on the other hand, when the moving frame 1 moves to one side of another wall 5 along the first direction, that is, the second bridge 12 moves to one side of another wall 5, the third hoisting mechanism 4 can hoist the heavy object located between the first hoisting mechanism 2 and the side wall 5, thereby further expanding the hoisting range of the crane.

Optionally, the third hoisting mechanism 4 further comprises a second rail assembly 43, a second moving structure 42 and a second electric hoist 41. A second rail assembly 43 is mounted to the bottom of the second bridge 12 in a second orientation. The second moving structure 42 is mounted on the second rail assembly 43. The second moving structure 42 can drive the second electric hoist 41 to slide along the second rail assembly 43.

Alternatively, the second moving structure 42 is slidably mounted on the second rail assembly 43 and can slide along the second rail assembly 43, and the second electric block 41 is mounted on the second moving structure 42.

Specifically, in the present embodiment, on the one hand, the second electric hoist 41 provided in the third hoisting mechanism 4 can hoist a heavy object with a smaller mass, for example, a heavy object of 5t, with respect to the main hook assembly 221 and the auxiliary hook assembly 222, so as to increase the hoisting speed and improve the working efficiency; on the other hand, the second electric hoist 41 can set different initial hoisting heights, and can hoist the heavy object to positions with different heights, thereby improving the flexibility of the crane.

Of course, in other embodiments, the second moving structure 42 may be mounted on the second bridge 12 as long as the second electric hoist 41 can be driven to slide along the second rail assembly 43.

Specifically, the second moving structure 42 has the same structure and installation manner as the first moving structure 32, and is not described herein again.

Alternatively, in the present embodiment, suspensions are provided at both ends of the first bridge 11 in the second direction. The first rail assembly 33 extends from the first bridge 11 to the suspensions at the two ends, so that the first electric hoist 31 can slide along the suspensions at the two ends of the first bridge 11 under the driving of the first sliding rail structure 32, so as to increase the moving range of the first electric hoist 31, and further expand the lifting range of the crane.

In other embodiments, in the second direction, a suspension may be disposed at one end of the first bridge 11, and the first rail assembly 33 extends from the first bridge 11 to the suspension, so that the first electric hoist 31 can slide along the suspension under the driving of the first moving structure 32, and the hoisting range of the crane can also be expanded.

Optionally, in this embodiment, in the second direction, the suspension is disposed at both ends of the second bridge 12. The second guide rail assembly 43 extends from the second bridge 12 to the suspensions at the two ends, so that the second electric hoist 41 can slide along the suspensions at the two ends of the second bridge 12 under the driving of the second slide rail structure 42, so as to increase the moving range of the second electric hoist 41, and further expand the lifting range of the crane. Of course, it is also possible to provide a suspension at only one end of the second bridge 12.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A crane, comprising:

the moving frame (1) is installed on a room body of a steam turbine room and can slide relative to the room body along a first direction on a horizontal plane;

the first hoisting mechanism (2) is installed in the middle of the moving frame (1) and can slide on a horizontal plane along a second direction relative to the moving frame (1), and the first hoisting mechanism (2) can hoist a heavy object to a preset position along the vertical direction;

the second hoisting mechanism (3) is mounted on the movable frame (1) and located on one side of the first hoisting mechanism (2), the second hoisting mechanism (3) can slide on a horizontal plane along the second direction relative to the movable frame (1), and the second hoisting mechanism (3) can hoist a heavy object to a preset position along the vertical direction;

the first direction and the second direction are arranged in a non-parallel mode.

2. A crane according to claim 1, characterized in that the nuclear load of the first hoisting means (2) is larger than the nuclear load lifted by the second hoisting means (3).

3. A crane as claimed in claim 2, characterized in that said mobile carriage (1) comprises a first bridge (11) and a second bridge (12) extending in said second direction and arranged opposite each other, said first lifting means (2) being mounted at one end on said first bridge (11) and being able to slide along said first bridge (11), said first lifting means (2) being mounted at the other end on said second bridge (12) and being able to slide along said second bridge (12), said second lifting means (3) being mounted on said first bridge (11) and being able to slide along the direction of extension of said first bridge (11).

4. A crane according to claim 3, characterized in that the second hoisting mechanism (3) comprises:

a first rail assembly (33) mounted at the bottom of the first bridge (11) in the second direction;

a first movement structure (32) mounted on said first rail assembly (33) or on said first bridge (11);

a first electric block (31), the first moving structure (32) being capable of driving the first electric block (31) to slide along the first guide rail assembly (33).

5. A crane according to claim 4, wherein the first moving structure (32) is slidably mounted on the first rail assembly (33) and can slide along the first rail assembly (33), the first electric block (31) being mounted on the first moving structure (32).

6. A crane according to any one of claims 4 or 5, further comprising a third hoisting mechanism (4), said third hoisting mechanism (4) being mounted on said second bridge (12) and being slidable in the extension direction of said second bridge (12).

7. A crane according to claim 6, characterized in that the third hoisting means (4) is capable of hoisting the weights from different starting heights.

8. A crane according to claim 6, characterized in that the third hoisting mechanism (4) further comprises:

a second rail assembly (43) mounted at the bottom of the second bridge (12) in the second direction;

a second moving structure (42) mounted on said second rail assembly (43) or said second bridge (12);

a second electric block (41), wherein the second moving structure (42) can drive the second electric block (41) to slide along the second guide rail assembly (43).

9. A crane as claimed in claim 8, characterized in that, in said second direction, one or both ends of said first bridge (11) are provided with a suspension, said first rail assembly (33) extending from said first bridge (11) to said suspension arrangement.

10. A crane as claimed in claim 9, wherein one or both ends of the second bridge (12) are provided with a suspension, the second rail assembly (43) extending from the second bridge (12) to the suspension arrangement.