CN220449580U

CN220449580U - Lifting equipment for overhauling fan

Info

Publication number: CN220449580U
Application number: CN202323148389.8U
Authority: CN
Inventors: 刘富利; 刘新波; 王玉金; 段其瑛; 杨雪朵; 盛珍; 郭爱华
Original assignee: Henan Weihua Heavy Machinery Co Ltd
Current assignee: Henan Weihua Heavy Machinery Co Ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-02-06
Anticipated expiration: 2033-11-22

Abstract

A fan overhauling and lifting device comprises an upper part and a lower part; the lower part comprises a lower frame, a hoisting motor is fixed on the lower frame, the hoisting motor is connected with a speed reducer through a brake, an output shaft of the speed reducer is respectively connected with a winding drum through two couplings, and a hoisting steel wire rope is wound on the winding drum; the upper part comprises an upper frame, the upper frame is provided with a guide fixed pulley, a trolley capable of sliding along the upper frame is arranged on the upper frame, a fixed pulley block is arranged on the trolley, the upper frame is provided with a power mechanism for pulling the trolley to move, and the power mechanism comprises an electric hoist. The beneficial effects are that: compared with the prior art, the utility model is divided into the upper part and the lower part, has smaller volume, and is convenient to use because the upper part is fixed on the generator frame without depending on a large-sized automobile crane or a crawler crane.

Description

Lifting equipment for overhauling fan

Technical Field

The utility model belongs to fan overhauling and lifting equipment, which is suitable for fan overhauling and lifting equipment consistent with the structural form.

Background

With the rapid development of the wind power generation industry, the number of wind power generation equipment installed in a wind field is increased year by year, the wind power generation equipment in the wind field tends to be saturated, a large number of equipment faces the maintenance and installation problems, a wind power generator tower is generally 60-100 m away from the ground, the wind power generator tower is higher in self height, in addition, most of the terrain of an installation place is complex and inconvenient to enter and exit, a large-sized truck crane and a crawler crane are generally adopted in a traditional mode, the problems of low efficiency and high cost exist, the truck crane rollover accident frequently occurs, the maintenance operation is difficult, the problem of high risk of the whole maintenance operation process exists, and the high-efficiency reliable fan overhauling and lifting equipment is provided.

Disclosure of Invention

In order to solve the problems, the utility model designs the fan overhauling and lifting equipment which can efficiently and reliably solve the fan overhauling problem with lower cost.

The specific scheme is as follows:

a fan overhauling and lifting device comprises an upper part and a lower part; the lower part comprises a lower frame, a hoisting motor is fixed on the lower frame, the hoisting motor is connected with a speed reducer through a brake, an output shaft of the speed reducer is respectively connected with a winding drum through two couplings, and a hoisting steel wire rope is wound on the winding drum; the upper part comprises an upper frame, the upper frame is provided with a guide fixed pulley, the upper frame is provided with a trolley capable of sliding along the upper frame, the trolley is provided with a fixed pulley block, the upper frame is provided with a power mechanism for pulling the trolley to move, the power mechanism comprises an electric hoist, an annular steel wire rope is wound on the electric hoist, and the annular steel wire rope is fixed on the trolley through a connecting piece; the free end of the hoisting steel wire rope moves upwards, moves towards the direction of the trolley after bypassing the guide fixed pulley, moves downwards after bypassing the fixed pulley block and is finally fixed on the hook piece.

A plurality of oblique beams are fixed between the vertical beams and the transverse beams of the upper frame.

The top of the lower frame is fixed with a rain cover.

The reel is connected with the working brake.

The winding drum is a multi-layer broken line winding drum.

The beneficial effects are that: compared with the prior art, the utility model is divided into the upper part and the lower part, has smaller volume, and is convenient to use because the upper part is fixed on the generator frame without depending on a large-sized automobile crane or a crawler crane.

Drawings

Fig. 1 is a schematic diagram of the present utility model.

Fig. 2 is a schematic left-hand view of the present utility model.

Fig. 3 is a schematic top view of the present utility model.

Fig. 4 is a schematic view of the lower part.

Fig. 5 is a left-hand schematic view of the lower portion.

Fig. 6 is a schematic top view of the lower portion.

Fig. 7 is a schematic view of the upper part.

Fig. 8 is a schematic left view of the upper portion.

Fig. 9 is a schematic bottom view of the upper portion.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model.

Referring to fig. 1 to 3, a fan service lifting apparatus includes an upper portion 20 and a lower portion 30.

As shown in fig. 4 to 6, the lower part 30 includes a lower frame 39, a hoist motor 33 is fixed on the lower frame 39, the hoist motor 33 is connected with a decelerator 35 through a brake 34, an output shaft of the decelerator 35 is respectively connected with a winding drum 32 through two couplings 36, and the winding drum 32 winds the hoist wire rope 22.

As shown in fig. 1 to 9, the upper part comprises an upper frame 24, the upper frame 24 is provided with a guiding fixed pulley 25, the upper frame 24 is provided with a trolley 21 capable of sliding along the upper frame, the trolley 21 is provided with a fixed pulley block 211, the upper frame 24 is provided with a power mechanism for pulling the trolley 21 to move, the power mechanism comprises an electric hoist 26, an annular steel wire rope 261 is wound on the electric hoist 26, the annular steel wire rope 261 is fixed on the trolley 21 through a connecting piece 262, the annular steel wire rope 261 is pulled to self-convey when the electric hoist 26 rotates, and the annular steel wire rope 261 pulls the trolley 21 to slide on the upper frame 24.

As shown in fig. 1 to 3, the free end 221 of the hoisting wire rope 22 moves upward, moves in the direction of the trolley 21 after bypassing the guide fixed pulley 25 (see reference numeral 222), moves downward after bypassing the fixed pulley block 211, and finally is fixed on the hook member 23, and the hook member 23 is driven to lift by the rotation of the reel 32.

As shown in fig. 8, a plurality of diagonal beams 27 are fixed between the vertical and horizontal beams of the upper frame 24 for the sake of rigidity.

As shown in fig. 4, a rain cover 31 is fixed to the top of the lower frame 39 for rain protection.

As shown in fig. 6, the spool 32 is connected to a service brake 37 for safety.

The spool 32 is a multi-layered fold line spool considering the longer length of the hoist rope 22.

The working principle is as follows:

when the fan maintenance equipment is installed on the generator tower, the upper structure of the maintenance equipment is suitable for synchronous installation, and the upper frame and the top of the generator tower 10 (installed on a mechanism platform of the engine room and can rotate along with the engine room) are fixed together through bolt connection or welding.

Then, the hoisting motor 33 is started, the hooking member 23 is driven to fall through the reel 32 and the wire rope 22, and then the hooking member 23 is hooked on the maintenance object (a gear box, a generator, a hydraulic system, a cooling system, and other fan maintenance equipment in the nacelle) 11.

The winding motor 33 is rotated reversely to lift the hook member 23 and the maintained member 11.

At this time, the trolley 21 is controlled to translate by the electric hoist 26, so that the workpiece 11 is kept away from the obstacle (for example, the original installation position).

Finally, the hoisting motor 33 is started to drop the hook member 23 and the maintained member 11, and maintenance work can be performed.

After the maintenance is completed, the maintained member 11 can be placed at the original position, and the process is opposite to the detached process, so that the description is omitted.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A fan overhauls jacking equipment which characterized in that: comprises an upper part (20) and a lower part (30);

the lower part (30) comprises a lower frame (39), a hoisting motor (33) is fixed on the lower frame (39), the hoisting motor (33) is connected with a speed reducer (35) through a brake (34), an output shaft of the speed reducer (35) is respectively connected with a winding drum (32) through two couplings (36), and a hoisting steel wire rope (22) is wound on the winding drum (32);

the upper part of the trolley comprises an upper frame (24), the upper frame (24) is provided with a guide fixed pulley (25), the upper frame (24) is provided with a trolley (21) capable of sliding along the upper frame, the trolley (21) is provided with a fixed pulley block (211), the upper frame (24) is provided with a power mechanism for pulling the trolley (21) to move, the power mechanism comprises an electric hoist (26), an annular steel wire rope (261) is wound on the electric hoist (26), and the annular steel wire rope (261) is fixed on the trolley (21) through a connecting piece (262);

the free end (221) of the hoisting wire rope (22) moves upwards, moves towards the trolley (21) after bypassing the guide fixed pulley (25), moves downwards after bypassing the fixed pulley block (211), and is finally fixed on the hook piece (23).

2. The fan service lifting apparatus of claim 1, wherein: a plurality of diagonal beams (27) are fixed between the vertical beams and the transverse beams of the upper frame (24).

3. The fan service lifting apparatus of claim 2, wherein: a rain cover (31) is fixed on the top of the lower frame (39).

4. A fan service lifting apparatus as claimed in claim 3, wherein: the spool (32) is connected to a service brake (37).

5. The fan service lifting apparatus of claim 4, wherein: the roll (32) is a multi-ply fold line roll.