Special tool for replacing wind turbine gearbox oil pump motor

Abstract

The utility model relates to wind power generation maintenance equipment technical field provides wind driven generator gear box oil pump motor replacement special frock, including hydraulic cylinder, longitudinal fixed on main body frame, bearing plate, slide setting in main body frame side department, its front surface is equipped with the arc lining board for sticking motor shell and is equipped with the lifting hook for hoisting motor, chain wheel, fixed in the output of hydraulic cylinder, its axial line is perpendicular with hydraulic cylinder movement direction, chain, is engaged on chain wheel, one end of chain is fixed on the fixed frame of main body frame, and the other end is fixed on the connecting column of bearing plate back, wherein, when hydraulic cylinder drive chain wheel rotates, bearing plate is driven along the length direction of main body frame and is lifted through chain.

Description

Technical Field

[0001] This utility model relates to the technical field of wind power maintenance equipment, specifically to a special tooling for replacing the oil pump motor of a wind turbine gearbox. Background Technology

[0002] The gearbox lubrication system of a typical domestically produced doubly-fed wind turbine generator set usually consists of components such as a radiator, oil pipes, oil pump motor, solenoid valve, pressure sensor, oil distributor, and oil level gauge. Among these, the oil pump motor, as the main power source of the system, plays a crucial role.

[0003] When the gearbox oil pump motor fails and needs replacement, significant challenges arise. Limited working space is a core difficulty, primarily due to the compact internal structure of the wind turbine nacelle: the oil pump motor is typically mounted in a specific location on the side or bottom of the gearbox, often surrounded by radiators, complex oil piping, other lubrication system components, and internal structural parts, leaving extremely limited space for personnel operation and the handling of large components. Furthermore, the oil pump motor itself is heavy and requires high installation and calibration precision; in such a confined environment, the traditional method of replacement, relying on multiple people carrying it by hand, is extremely inconvenient and dangerous. This not only leads to long operation times and low efficiency but also greatly increases the risk of personnel injuries and equipment collisions during handling and positioning. Therefore, it is urgent to design and manufacture specialized tooling to overcome space limitations, safely and efficiently complete the oil pump motor replacement, and reduce operational risks. To this end, we propose a specialized tooling for replacing the oil pump motor in a wind turbine gearbox. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a special tooling for replacing the oil pump motor in the gearbox of a wind turbine generator, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A special tooling for replacing the oil pump motor of a wind turbine gearbox includes a main frame with a support frame at its bottom, and casters mounted on the support frame.

[0007] Its features include:

[0008] The hydraulic cylinder is longitudinally fixed to the main frame;

[0009] The load-bearing plate is slidably installed on the side of the main frame, and its front side is provided with an arc-shaped liner for fitting the motor housing and a lifting hook for hoisting the motor.

[0010] The sprocket is fixed to the output end of the hydraulic cylinder, and its axis is perpendicular to the direction of movement of the hydraulic cylinder.

[0011] A chain meshes with a sprocket, one end of which is fixed to a fixing frame of the main body frame, and the other end is fixed to a connecting post on the back of the load-bearing plate;

[0012] When the hydraulic cylinder drives the sprocket to rotate, the chain drives the load-bearing plate to rise and fall along the length of the main frame.

[0013] Preferably, mounting plates are provided on both sides of the back of the load-bearing plate, and pulleys are installed on the mounting plates. The main frame is provided with sliding grooves that cooperate with the pulleys.

[0014] Preferably, the tail of the hydraulic cylinder is fixed to the bottom of the main frame via a mounting bracket.

[0015] Preferably, the operating end of the hydraulic cylinder is provided with a pressure handle, and a handle is installed on the pressure handle.

[0016] Preferably, the fixed frame and the hydraulic cylinder are connected by connecting plate bolts.

[0017] Preferably, the main frame is provided with a handle, which is located on the same side as the fixing frame.

[0018] This utility model provides a special tooling for replacing the oil pump motor in a wind turbine gearbox. It has the following advantages:

[0019] 1. Through the cooperation of hydraulic cylinder and sprocket transmission mechanism, the output end of hydraulic cylinder is vertically fixed to sprocket, and the two ends of chain are respectively connected to fixed frame and load-bearing plate connecting column, which transforms the linear lifting motion of hydraulic cylinder into the smooth lifting and lowering of load-bearing plate, completely replacing manual handling and eliminating the risk of personnel crushing injury.

[0020] 2. Through the sliding cooperation between the pulleys on the back of the load-bearing plate and the slide groove of the main frame, the load-bearing plate moves in a limited position along the length of the main frame, ensuring that the motor does not swing laterally during the lifting process, thus meeting the high-precision positioning requirements in confined spaces.

[0021] 3. Through the combination structure of the arc-shaped liner on the front of the load-bearing plate and the lifting hook, after the motor is hoisted by the lifting hook, the motor shell fits against the curved surface of the arc-shaped liner to form a limit and prevent the motor from slipping or rotating during transportation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0024] Figure 3 This utility model Figure 1 Partial 3D schematic diagram;

[0025] Figure 4 This utility model Figure 3Partial 3D schematic diagram.

[0026] In the diagram: 1. Main frame; 11. Leg; 12. Caster; 13. Handle; 14. Mounting base; 15. Fixing frame; 2. Hydraulic cylinder; 21. Connecting plate; 22. Sprocket; 23. Pressure handle; 24. Handle; 3. Load-bearing plate; 31. Pulley; 32. Mounting plate; 33. Curved liner; 34. Lifting hook; 35. Connecting column. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this utility model, not all of it. Based on this utility model, all other inventions obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] See attached document Figure 1-4 A special tooling for replacing the oil pump motor of the wind turbine gearbox includes a main frame 1 and a fixing frame 15 that is horizontally installed on the side of the main frame 1. The fixing frame 15 is located in the middle of the main frame 1 in the long direction. The hydraulic cylinder 2 installed on the main frame 1 along its long direction is connected to the fixing frame 15 to form a fixed fit.

[0029] A load-bearing plate 3 is slidably mounted on the other side of the main frame 1 along its longer direction. An arc-shaped liner 33 and a lifting hook 34 are installed on the front of the load-bearing plate 3. The lifting hook 34 is used to lift the oil pump motor to be replaced before the replacement operation and to securely place or suspend the motor inside the arc-shaped liner 33. The shape of the arc-shaped liner 33 is designed to fit the motor housing or provide support and limit, effectively preventing the motor from swinging or slipping during transportation and lifting.

[0030] On the output end of the hydraulic cylinder 2, sprockets 22 are fixedly installed extending to both sides. The axis of the sprockets 22 is preferably perpendicular to the direction of movement of the output end of the hydraulic cylinder 2. A chain is wound around and engaged with the sprockets 22. One end of the chain is fixedly connected to the fixing frame 15. The other end of the chain is fixedly connected to the connecting post 35 on the back of the load-bearing plate 3. When the output end of the hydraulic cylinder 2 is lifted upward, the sprockets 22 push the chain to lift the load-bearing plate 3, thereby driving the motor to lift.

[0031] Mounting plates 32 are installed on both sides of the back of the load-bearing plate 3. The mounting plates 32 are parallel to the longer side of the main frame 1. A pulley 31 is also installed on the mounting plate 32. The pulley 31 can roll along the corresponding groove set on the main frame 1 in the longer direction of the main frame 1.

[0032] To facilitate the fixed installation of the hydraulic cylinder 2 on the main frame 1, a mounting base 14 is also connected to the bottom of the main frame 1. The tail of the hydraulic cylinder 2 is connected and fixed to the mounting base 14. The mounting base 14 can be fixed to the bottom of the main frame 1 by welding or bolts.

[0033] A handle 23 is provided at the operating end of the hydraulic cylinder 2, and a handle 24 can be further provided on the handle 23 to facilitate operation and make it convenient for manual operation to lift the hydraulic cylinder 2.

[0034] Connecting plates 21 are connected to both the fixed frame 15 and the hydraulic cylinder 2, and are fixedly connected by bolts. One connecting plate 21 is fixed to the bottom of the fixed frame 15, and the other connecting plate 21 is fixedly installed on the periphery of the hydraulic cylinder 2. The connecting plates 21 extend and overlap each other and are fixed by bolts.

[0035] The bottom of the main frame 1 is also equipped with a leg 11, and each leg 11 is equipped with a caster 12 for easy control during transportation.

[0036] A handle 13 is also connected between the main frame 1 and the legs 11. The handle 13 is located on the same side of the fixed frame 15, which facilitates manual pushing of the whole for transportation.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above description is only used to illustrate the technical solutions of this utility model, and is not intended to limit it. Although the utility model has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the various technical solutions of this utility model.

Claims

1. A special tooling for replacing the oil pump motor of a wind turbine gearbox, comprising a main frame (1) with a bracket (11) installed at its bottom, and casters (12) provided on the bracket (11). Its features are, include: Hydraulic cylinder (2) is longitudinally fixed to the main frame (1); The load-bearing plate (3) is slidably set on the side of the main frame (1), and its front side is provided with an arc-shaped liner (33) for fitting the motor housing and a lifting hook (34) for hoisting the motor. The sprocket (22) is fixed to the output end of the hydraulic cylinder (2), and its axis is perpendicular to the direction of movement of the hydraulic cylinder (2); A chain meshes with a sprocket (22), one end of which is fixed to a fixing frame (15) of the main frame (1), and the other end is fixed to a connecting post (35) on the back of the load-bearing plate (3). When the hydraulic cylinder (2) drives the sprocket (22) to rotate, it drives the load-bearing plate (3) to rise and fall along the length of the main frame (1) via the chain.

2. The special tooling for replacing the oil pump motor of the wind turbine gearbox as described in claim 1, characterized in that: The load-bearing plate (3) has mounting plates (32) on both sides of its back side. The mounting plates (32) are equipped with pulleys (31), and the main frame (1) has a sliding groove that cooperates with the pulleys (31).

3. The special tooling for replacing the oil pump motor of the wind turbine gearbox as described in claim 1, characterized in that: The tail of the hydraulic cylinder (2) is fixed to the bottom of the main frame (1) by a mounting seat (14).

4. The special tooling for replacing the oil pump motor of the wind turbine gearbox as described in claim 1, characterized in that: The hydraulic cylinder (2) is provided with a pressure handle (23) at the operating end, and a handle (24) is installed on the pressure handle (23).

5. The special tooling for replacing the oil pump motor of the wind turbine gearbox as described in claim 1, characterized in that: The fixed frame (15) and the hydraulic cylinder (2) are bolted together by a connecting plate (21).

6. The special tooling for replacing the oil pump motor of the wind turbine gearbox as described in claim 1, characterized in that: The main frame (1) is provided with a handle (13), which is located on the same side as the fixing frame (15).

Images