Part lifting device suitable for fan operation and maintenance

Abstract

The utility model discloses a part lifting device suitable for fan operation and maintenance, which comprises a support component, a multidirectional adjusting component and a suspension component, the support component is fixedly arranged at the top end of a fan main frame, the multidirectional adjusting component is rotatably arranged at the top end of the support component, and the suspension component is assembled at the front end of the multidirectional adjusting component. The lifting device is large in lifting height, small parts on the ground can be directly lifted to a cabin, the cost for renting a crane is saved, and the lifting device is more convenient and faster than a chain block type small-stroke lifting device. The supporting assembly is of a multi-section assembly structure, the overall height and the rotating angle can be adjusted according to actual working conditions, and the lifting appliance can better adapt to complex working conditions on site compared with an integrated lifting appliance. The multi-direction adjusting assembly is of a three-section type rotating structure, small parts can be effectively hoisted to any position close to a cabin, hoisting operation can be more flexibly carried out, the working efficiency is greatly improved, and the manual carrying risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and in particular to a parts lifting device suitable for fan operation and maintenance. Background Art

[0002] my country's wind power industry has developed rapidly since its inception. my country has a vast territory and abundant resources, with extensive onshore and offshore wind farms, stable wind resources and broad development prospects.

[0003] With the increase in installed capacity, the wind power operation and maintenance industry has emerged. After a long period of operation, wind turbines have experienced various faults due to the limited life of their components. Since the blades, hubs, nacelles, etc. are all in the air, a crane must be used for maintenance or replacement of parts. In addition, the installation sites of wind turbines are mostly in hilly and mountainous environments, so it is very difficult to get a crane to the site and the cost is very expensive. If the basic maintenance of the wind turbine only requires the replacement of small parts, the use of a rental crane would be a waste of resources and a serious waste of costs. Therefore, it is urgent to design a lifting device that is convenient for wind turbine maintenance, which can realize the replacement and maintenance of small parts without using a crane, so as not to be restricted by the site and reduce maintenance costs. Utility Model Content

[0004] In order to solve the technical problems mentioned in the background technology, the utility model provides a parts lifting device suitable for wind turbine operation and maintenance.

[0005] The utility model adopts the following technical solution: a parts lifting device suitable for wind turbine operation and maintenance, comprising a support component, a multi-directional adjustment component and a suspension component;

[0006] The support assembly is fixedly arranged on the top of the fan main frame;

[0007] The multi-directional adjustment component is rotatably arranged on the top end of the support component;

[0008] The suspension assembly is mounted on the front end of the multi-directional adjustment assembly;

[0009] The support assembly includes a bottom column, a middle column and a top column fixedly arranged on the main frame of the fan, and the three are fixedly connected by a flange plate and flange bolts;

[0010] The top end of the top column is equipped with a rotating shaft;

[0011] The multi-directional adjustment assembly includes a tail lifting arm, a middle lifting arm and a head lifting arm;

[0012] A rotating seat adapted to the rotating shaft is provided at the end of the tail lifting arm so that the tail lifting arm can rotate around the rotating shaft;

[0013] The end of the middle lifting arm is hinged to the front end of the tail lifting arm through a first rotating shaft;

[0014] The end of the head lifting arm is hinged to the front end of the middle lifting arm through a second rotating shaft;

[0015] The suspension assembly includes an electric hoist, a steel wire rope, a fixed pulley and a movable pulley;

[0016] The electric lift is mounted on the top of the head lift arm;

[0017] The fixed pulley is installed at the front end of the head lifting arm and is used to guide the wire rope;

[0018] The extended end of the steel wire rope passes over the movable pulley and is fixedly arranged on the fixed suspension shaft at the front end of the head lifting arm;

[0019] The bottom of the movable pulley is connected to a pulley hook for lifting parts.

[0020] Furthermore, a limiting top cover is provided at the top end of the rotating shaft.

[0021] Furthermore, a single-row rolling bearing and a double-row rolling bearing are installed on the top end of the head lifting arm.

[0022] Furthermore, a support beam is provided at the bottom of the head lifting arm.

[0023] Furthermore, the rotating shaft is a self-lubricating bearing.

[0024] Compared with the prior art, the advantages of the utility model are: the parts lifting device designed by the utility model is suitable for wind turbine operation and maintenance, with a large lifting height, and can directly lift small parts on the ground to the cabin, saving the cost of renting a crane, and is more convenient and quicker than the small-stroke lifting in the form of a hand winch. Its support component adopts a multi-stage assembly structure, and the overall height and rotation angle can be adjusted according to the actual working conditions, which can better adapt to complex working conditions on site than the integrated lifting device. The multi-directional adjustment component is a three-stage rotating structure, which can effectively lift small parts to any position close to the cabin, and can perform lifting operations more flexibly, greatly improving work efficiency and reducing the risk of manual handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the installation of a parts lifting device suitable for wind turbine operation and maintenance according to the utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the parts lifting device of the utility model applicable to the operation and maintenance of the fan;

[0027] Figure 3The utility model is used to illustrate the use of the parts lifting device suitable for fan operation and maintenance. Figure 1 ;

[0028] Figure 4 The utility model is used to illustrate the use of the parts lifting device suitable for fan operation and maintenance. Figure 2 ;

[0029] Figure 5 The utility model is used to illustrate the use of the parts lifting device suitable for fan operation and maintenance. Figure 3 .

[0030] in:

[0031] 1-Support assembly, 2-Multi-directional adjustment assembly, 3-Suspension assembly, 10-Blower main frame,

[0032] 11- bottom column, 12- middle column, 13- top column, 14- flange, 15- rotating shaft, 16- limit top cover,

[0033] 21-tail lifting arm, 22-middle lifting arm, 23-head lifting arm, 24-rotating seat, 25-first rotating axis, 26-second rotating axis,

[0034] 31-electric hoist, 32-steel rope, 33-fixed pulley, 34-movable pulley, 35-fixed suspension shaft, 36-single-row rolling bearing, 37-double-row rolling bearing, 38-support beam. DETAILED DESCRIPTION

[0035] In order to facilitate those skilled in the art to understand the technical solution of the utility model, further description is now made with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model.

[0036] In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments may be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0037] See also Figure 1 , is an installation diagram of a parts lifting device suitable for wind turbine operation and maintenance of the utility model. The overall structure of this embodiment includes a support assembly 1, a multi-directional adjustment assembly 2 and a suspension assembly 3, wherein the support assembly 1 is fixedly arranged at the top of the wind turbine main frame 10, the multi-directional adjustment assembly 2 is rotatably arranged at the top of the support assembly 1, and the suspension assembly 3 is assembled at the front end of the multi-directional adjustment assembly 2 to suspend the operation and maintenance parts below.

[0038] like Figure 2 As shown, it is a schematic diagram of the overall structure of the parts lifting device suitable for wind turbine operation and maintenance of the utility model, wherein the support assembly 1 includes a bottom column 11, an intermediate column 12 and a top column 13 fixedly arranged on the wind turbine main frame 10, and the three are fixedly connected by a flange plate 14 and flange bolts. The top end of the top column 13 is equipped with a rotating shaft 15, and in a specific implementation, the rotating shaft 15 can be a self-lubricating bearing.

[0039] In this embodiment, the multi-directional adjustment assembly 2 includes a tail lifting arm 21, an intermediate lifting arm 22 and a head lifting arm 23. A rotating seat 24 adapted to the rotating shaft 15 is provided at the end of the tail lifting arm 21, so that the tail lifting arm 21 can rotate 360° around the rotating shaft 15. In specific implementation, a limit top cover 16 is provided at the top of the rotating shaft 15, and the limit top cover 16 can limit the tail lifting arm 21 from sliding out of the top of the rotating shaft 15 to ensure safe operation. The end of the intermediate lifting arm 22 is hinged to the front end of the tail lifting arm 21 through the first rotating shaft 25, so that the intermediate lifting arm 22 can realize the function of left and right rotation. The end of the head lifting arm 23 is hinged to the front end of the intermediate lifting arm 22 through the second rotating shaft 26, so that the head lifting arm 23 can realize the function of left and right rotation. In specific implementation, since the head lifting arm 23 bears the main weight, a support beam 38 is provided at the bottom of the head lifting arm 23 to strengthen and stabilize it.

[0040] In this embodiment, the suspension assembly 3 includes an electric hoist 31, a wire rope 32, a fixed pulley 33 and a movable pulley 34. The electric hoist 31 is assembled at the top of the head lifting arm 23. The fixed pulley 33 is installed at the front end of the head lifting arm 23 to guide the wire rope 32. The extended end of the wire rope 32 passes around the movable pulley 34 and is fixedly set on the fixed suspension shaft 35 at the front end of the head lifting arm 23. The bottom of the movable pulley 34 is connected to the pulley hook for lifting parts. In specific implementation, a single-row rolling bearing 36 and a double-row rolling bearing 37 are installed at the top of the head lifting arm 23 to roll and limit the wire rope 32. At this time, through the operation of the electric hoist 31, the lifting wire rope 32 is controlled to extend or retract, thereby driving the movable pulley 34 and the pulley hook to perform lifting and lowering actions.

[0041] like Figure 3-5 As shown, when hoisting the maintenance parts to the specified position of the wind turbine main frame 10, the multi-directional adjustment component 2 can be easily bent and turned by manpower and hoisted to the required position.

[0042] In summary, the parts lifting device designed by the utility model, which is suitable for wind turbine operation and maintenance, continues the lifting function of the crane, and can remotely and electrically lift small parts on the ground to the designated position of the cabin in the air, and can also be used for lifting and repairing small parts inside the cabin. The lifting height is large, and small parts on the ground can be directly lifted to the cabin, saving the cost of renting a crane, and it is more convenient and quicker than the short-stroke lifting in the form of a hand winch. Its support component adopts a multi-stage assembly structure, and the overall height and rotation angle can be adjusted according to the actual working conditions. It can better adapt to complex on-site working conditions than an integrated hoist. The multi-directional adjustment component is a three-stage rotating structure, which can effectively lift small parts to any position close to the cabin, and can perform lifting operations more flexibly, greatly improving work efficiency and reducing the risk of manual handling.

[0043] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A parts lifting device suitable for wind turbine operation and maintenance, characterized in that: It comprises a supporting component (1), a multi-directional adjustment component (2) and a suspension component (3); The support assembly (1) is fixedly arranged on the top of the fan main frame (10); The multi-directional adjustment component (2) is rotatably arranged on the top end of the support component (1); The suspension component (3) is mounted on the front end of the multi-directional adjustment component (2); The support assembly (1) comprises a bottom column (11), a middle column (12) and a top column (13) fixedly arranged on a main frame (10) of a fan, and the three are fixedly connected via a flange plate (14) and flange bolts; The top end of the top column (13) is equipped with a rotating shaft (15); The multi-directional adjustment assembly (2) comprises a tail lifting arm (21), a middle lifting arm (22) and a head lifting arm (23); A rotating seat (24) adapted to the rotating shaft (15) is provided at the end of the tail lifting arm (21), so that the tail lifting arm (21) can rotate around the rotating shaft (15); The end of the middle lifting arm (22) is hinged to the front end of the tail lifting arm (21) via a first rotating shaft (25); The end of the head lifting arm (23) is hinged to the front end of the middle lifting arm (22) via a second rotating shaft (26); The suspension assembly (3) comprises an electric hoist (31), a steel wire rope (32), a fixed pulley (33) and a movable pulley (34); The electric lifter (31) is mounted on the top end of the head lift arm (23); The fixed pulley (33) is installed at the front end of the head lifting arm (23) and is used to guide the wire rope (32); The extended end of the steel wire rope (32) passes over a movable pulley (34) and is fixedly mounted on a fixed suspension shaft (35) at the front end of the head lifting arm (23); The bottom of the movable pulley (34) is connected to a pulley hook for lifting parts.

2. The parts lifting device suitable for wind turbine operation and maintenance according to claim 1 is characterized in that: A limiting top cover (16) is provided at the top end of the rotating shaft (15).

3. The parts lifting device suitable for wind turbine operation and maintenance according to claim 2 is characterized in that: A single-row rolling bearing (36) and a double-row rolling bearing (37) are installed on the top end of the head lifting arm (23).

4. The parts lifting device suitable for wind turbine operation and maintenance according to claim 3 is characterized in that: A support beam (38) is provided at the bottom of the head lifting arm (23).

5. The parts lifting device suitable for wind turbine operation and maintenance according to claim 4 is characterized in that: The rotating shaft (15) is a self-lubricating bearing.

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