CN214359726U

CN214359726U - Synchronous opening and closing lifting appliance for lifting maintenance of nuclear power station

Info

Publication number: CN214359726U
Application number: CN202023177297.9U
Authority: CN
Inventors: 温洲; 卢榕; 郭通; 闫彬
Original assignee: Jiangsu Daozhong Energy Technology Co ltd
Current assignee: Jiangsu Daozhong Energy Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-08
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a synchronous opening and closing lifting appliance for lifting maintenance of a nuclear power station, which comprises a lifting frame, wherein a horizontal rail extending horizontally is arranged on the lifting frame, and a pair of pulleys is movably arranged on the horizontal rail; the power assembly is arranged on the hoisting frame and is configured to drive the pulleys to synchronously move back to back or synchronously move opposite to each other; a pair of movable hoisting rings which are respectively arranged on the pair of pulleys and move along with the movement of the pulleys; the lifting rings are fixedly arranged on the lower side of the cross beam and positioned between the pair of movable lifting rings; and the control unit is connected with the power assembly phase in a control mode. Through setting up a pair of rings and certain rings, a pair of rings that move can be driven by a pair of coaster under power component's drive, realize synchronous back of the body removal in opposite directions or synchronous removal in opposite directions to can realize disposable hoist and mount 1 to 3 article, and can adjust the interval between the article of hoist, avoid knocking and decrease the defect.

Description

Synchronous opening and closing lifting appliance for lifting maintenance of nuclear power station

Technical Field

The utility model relates to a supplementary maintenance equipment technical field of nuclear power station, in particular to synchronous hoist that opens and shuts for nuclear power station hoist and mount maintenance.

Background

In the technical field of nuclear power equipment, a large-sized motor is used as energy operation equipment, the working environment is relatively harsh, the surrounding environment of a nuclear power plant is relatively close to a radiation source, and the stability of the operation of the large-sized motor needs to be ensured, so that the periodic maintenance is necessary.

The large-scale motor applied to the nuclear power station mainly comprises a steam turbine generator, a hydraulic generator, a synchronous phase modifier and the like. When the large motor is periodically repaired and maintained, all parts of the large motor need to be detached and maintained respectively. However, the large-scale motor has more parts, each part has a large weight, the conventional hoisting equipment can only hoist one part at a time, the hoisting efficiency is low, the motor is more time-consuming and labor-consuming in the dismounting and maintenance work, and if the motor is used for hoisting a plurality of articles or equipment at one time, the articles are easy to be squeezed together, so that the equipment or the parts are damaged and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a can hoist a plurality of article simultaneously, the synchronous hoist that opens and shuts of interval between the adjustable article of hoisting.

Therefore, the utility model provides a hoist that opens and shuts in step for nuclear power station hoist and mount maintenance, include:

the hoisting frame is provided with a horizontal rail extending horizontally, and a pair of pulleys is movably arranged on the horizontal rail;

the power assembly is arranged on the hoisting frame and is configured to drive the pulleys to synchronously move back to back or synchronously move opposite to each other;

a pair of movable hoisting rings which are respectively arranged on the pair of pulleys and move along with the movement of the pulleys;

the lifting rings are fixedly arranged on the lower side of the cross beam and positioned between the pair of movable lifting rings;

and the control unit is connected with the power assembly phase in a control mode.

In the above technical solution, preferably, the lifting frame includes a cross beam and a pair of connecting beams, the pair of connecting beams has a common connecting end, the other end of the pair of connecting beams is respectively connected to two ends of the cross beam, and the cross beam and the pair of connecting beams form a triangular structure, and the common connecting end is provided with a main lifting ring for lifting the lifting device.

In the above technical solution, preferably, the transverse rail is provided with a limiting component for limiting the travel of the tackle.

In the above technical solution, preferably, the limit component includes at least one pair of limit stoppers, one of the pair of limit stoppers is disposed adjacent to the end of the beam, and the other of the pair of limit stoppers is disposed adjacent to the fixed hanging ring.

In the above technical solution, preferably, the power assembly includes a synchronous motor, a driving wheel, a driven wheel and a synchronous belt, the synchronous motor is fixed at one end of the cross beam and located at the upper side of the cross rail, the driving wheel is coaxially installed on an output shaft of the synchronous motor, the driven wheel is rotatably disposed at the other end of the cross beam, the synchronous belt is connected between the driving wheel and the driven wheel, one of the pair of pulleys is fixed to the upper portion of the synchronous belt, and the other pulley is fixed to the lower portion of the synchronous belt.

Compared with the prior art, the utility model has the advantages as follows:

1. through setting up a pair of rings and certain rings, a pair of rings that move can be driven by a pair of coaster under power component's drive, realize synchronous back of the body removal in opposite directions or synchronous removal in opposite directions to can realize disposable hoist and mount 1 to 3 article, and can adjust the interval between the article of hoist, avoid knocking and decrease the defect.

2. Compared with the traditional hoisting equipment which can only hoist one article at a time, the hoisting device has higher hoisting efficiency.

Drawings

Fig. 1 is a perspective schematic view of the present invention;

fig. 2 is a schematic plan view of the spreader of fig. 1;

wherein the drawings are illustrated as follows:

100. synchronously opening and closing the lifting appliance; 1. a hoisting frame; 11. a cross beam; 111. a transverse rail; 12. a connecting beam; 13. a main hoisting ring; 14. a pulley; 2. a power assembly; 21. a synchronous motor; 22. a driving wheel; 23. a driven wheel; 24. a synchronous belt; 3. a movable hoisting ring; 4. fixing a lifting ring; 5. a control unit; 6. a limiting component; 61. and a limit stop.

Detailed Description

It is easily understood that, according to the technical solution of the present invention, a person skilled in the art can propose various alternative structural modes and implementation modes without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.

The terms "upper", "lower", "lateral", "horizontal", "two-end", "back", "opposite", and the like in the description are defined relative to the structures shown in the drawings, and are relative terms, and thus may be changed according to the positions and the use states. Therefore, these and other directional terms should not be construed as limiting terms.

As shown in fig. 1 and 2, a synchronous opening and closing lifting appliance 100 for lifting and maintaining a nuclear power station comprises a lifting frame 1, a power assembly 2, a pair of movable lifting rings 3, a certain lifting ring 4, a control unit 5 and a limiting assembly 6.

The hoisting frame 1 is provided with a horizontal rail 111 extending horizontally, and a pair of pulleys 14 is movably arranged on the horizontal rail 111. Specifically, the hoisting frame 1 comprises a cross beam 11 and a pair of connecting beams 12, the pair of connecting beams 12 have a common connecting end, the other ends of the pair of connecting beams 12 are respectively connected with two ends of the cross beam 11, the cross beam 11 and the pair of connecting beams 12 form a triangular structure, and a main hoisting ring 13 for hoisting the hoisting tool is arranged on the common connecting end.

And the power component 2 is arranged on the hoisting frame 1, and the power component 2 is configured to drive the pair of pulleys 14 to synchronously move back to back or synchronously move towards each other. Specifically, the power assembly 2 includes a synchronous motor 21, a driving wheel 22, a driven wheel 23 and a synchronous belt 24, the synchronous motor 21 is fixed at one end of the cross beam 11 and located on the upper side of the cross rail 111, the driving wheel 22 is coaxially installed on an output shaft of the synchronous motor 21, the driven wheel 23 is rotatably arranged at the other end of the cross beam 11, the synchronous belt 24 is connected between the driving wheel 22 and the driven wheel 23, one of the pair of pulleys 14 is fixed with the upper portion of the synchronous belt 24, and the other one is fixed with the lower portion of the synchronous belt 24.

And a pair of movable hoisting rings 3 which are respectively installed on the pair of pulleys 14 and move along with the movement of the pulleys.

And the fixed lifting rings 4 are fixedly arranged on the lower side of the cross beam 11 and are positioned between the pair of movable lifting rings 3.

And the control unit 5 is connected with the power assembly 2 in a control mode. Specifically, the control unit 5 may adopt a remote controller (built-in control motherboard) known in the prior art, which is similar to a driving remote controller, and is in control connection with the synchronous motor 21, and a user can send a control instruction to the synchronous motor 21 by means of the remote controller to control forward and reverse rotation, adjust the rotating speed and the like.

In order to limit the stroke of the tackle 14 and avoid the defects of collision between the tackle and between the tackle and the end part of the transverse track, a limiting component 6 is arranged on the transverse track 111. In particular, the restraint assembly 6 comprises at least one pair of restraint blocks 61, one of the restraint blocks 61 being disposed adjacent to an end of the transverse beam 11 and the other restraint block being disposed adjacent to the stationary sling 4 so as to restrain the respective trolley to be reciprocally movable within a certain travel.

The working principle of the utility model is realized as follows: when the lifting appliance 100 lifts an object or equipment, 3 objects can be lifted simultaneously, one object is positioned on the fixed lifting ring 4 in the middle, and the other two objects are positioned on the movable lifting rings 3 on two sides. Then the user is through operating the remote controller to control a pair of coaster 14 relative movement (back to back or in opposite directions), adjust the distance between two movable rings 3, thereby play when hoisting a plurality of article simultaneously, adjust the interval between each article, avoid knocking over the damage condition.

The number of the movable hoisting rings is not limited to one, and more movable hoisting rings can be used, so that more than 3 articles can be hoisted simultaneously.

The technical scope of the present application is not limited to the contents in the above description, and those skilled in the art can make various changes and modifications to the above embodiments without departing from the technical spirit of the present application, and these changes and modifications should fall within the protective scope of the present application.

Claims

1. The utility model provides a hoist that opens and shuts in step for nuclear power station hoist and mount maintenance which characterized in that includes:

the hoisting frame (1) is provided with a horizontal rail (111) extending horizontally, and a pair of pulleys (14) is movably arranged on the horizontal rail (111);

the power assembly (2) is arranged on the hoisting frame (1), and the power assembly (2) is configured to drive the pair of pulleys (14) to synchronously move back to back or synchronously move towards each other;

a pair of movable hoisting rings (3) which are respectively arranged on the pair of pulleys (14) and move along with the movement of the pulleys;

a fixed hanging ring (4) which is fixedly arranged at the lower side of the transverse rail (111) and is positioned between the pair of movable hanging rings (3);

and the control unit (5) is connected with the power assembly (2) in a control mode.

2. The synchronous opening and closing lifting appliance for lifting and maintaining of the nuclear power plant as claimed in claim 1, wherein: the lifting frame (1) comprises a cross beam (11) and a pair of connecting beams (12), the connecting beams (12) have a common connecting end, the other ends of the connecting beams (12) are respectively connected with the two end parts of the cross beam (11), the cross beam (11) and the connecting beams (12) form a triangular structure, and a main lifting ring (13) used for lifting the lifting appliance is arranged on the common connecting end.

3. The synchronous opening and closing lifting appliance for lifting and maintaining of the nuclear power plant as claimed in claim 2, wherein: and a limiting component (6) for limiting the stroke of the pulley (14) is arranged on the transverse track (111).

4. The synchronous opening and closing lifting appliance for lifting and maintaining of the nuclear power plant as claimed in claim 3, wherein: the limit stop assembly (6) comprises at least one pair of limit stops (61), one of the pair of limit stops (61) is arranged adjacent to the end part of the cross beam (11), and the other limit stop is arranged adjacent to the fixed lifting ring (4).

5. The synchronous opening and closing lifting appliance for lifting and maintaining of the nuclear power plant as claimed in claim 2, wherein: power component (2) include synchronous machine (21), action wheel (22), follow driving wheel (23) and hold-in range (24), synchronous machine (21) are fixed crossbeam (11) one end just is located cross rail (111) upside, action wheel (22) coaxial arrangement be in on the output shaft of synchronous machine (21), follow the rotatable setting of driving wheel (23) and be in crossbeam (11) another tip, hold-in range (24) are connected action wheel (22) with between follow driving wheel (23), it is a pair of in coaster (14) with hold-in range (24) upper portion is fixed mutually, another with hold-in range (24) lower part is fixed mutually.