An automated turning device and a wind turbine bearing system including the device

Abstract

This utility model discloses an automated turning device, including a bottom support unit, a motor, a pressure-bearing bearing gear ring assembly, and a connecting assembly for connecting to a bearing housing. The pressure-bearing bearing gear ring assembly is mounted above the bottom support unit, and the connecting assembly is positioned above the pressure-bearing bearing gear ring assembly and rotates together with it. The motor is effectively electrically connected to the pressure-bearing bearing gear ring assembly and is used to control its rotation in both forward and reverse directions. The pressure-bearing bearing gear ring assembly contains a main shaft support frame for detachable connection to the main shaft. This utility model also provides a wind turbine bearing system. The automated turning device provided by this utility model can effectively solve the pain points of existing turning devices, such as low efficiency, high risk, and reliance on manual labor.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to an automated turning device and a wind turbine bearing system containing the same. Background Technology

[0002] As a core component of renewable energy, the reliability and lifespan of the bearing system in wind turbines directly impact the overall performance of the machine. Bearing rotation technology, a crucial aspect of installation, commissioning, and maintenance, requires tailored design to the specific operating conditions of wind power equipment, while simultaneously meeting requirements for high load capacity, low friction, and long lifespan. Wind turbine bearings must withstand the combined effects of blade aerodynamic loads, gearbox torque, and rotor inertial forces. Especially in yaw and pitch systems, the combined action of axial force and overturning moment can easily lead to localized stress concentration. The lubrication distribution during bearing rotation directly affects operational stability. Wind turbine bearings need to achieve smooth startup at low wind speeds; therefore, the design of grease injection holes and abutment grease injection components must ensure uniform grease coverage of the raceways and rolling elements, reducing torque fluctuations caused by dry friction. During bearing installation, rotation is used to verify shaft coaxiality and clearance parameters, preventing thermal stress accumulation due to over-tightening. For large slewing bearings, rotation can also release residual stress generated during transportation or storage, preventing abnormal vibrations caused by microscopic deformation of the raceways. Wind turbine bearing disc drive technology is integrated throughout the entire design, manufacturing, and operation and maintenance lifecycle. Its core lies in balancing high load-bearing requirements with low frictional losses, and improving reliability through material innovation, structural optimization, and intelligent monitoring. In the future, with the development of offshore wind power and ultra-large turbine units, bearing disc drive technology needs to further overcome its adaptability bottlenecks under extreme operating conditions to support efficient operation and maintenance in the wind power industry.

[0003] Currently, the rotating shaft method involves a forklift dragging the bearing housing. However, forklifts, as general-purpose material handling equipment, lack the precise control capabilities required for rotating wind turbine shaft systems. The main shaft bearing installation requires high precision in axial clearance control, a standard that forklift hydraulic systems and fork positioning accuracy typically cannot meet. During rotating, uneven force application or positioning misalignment can cause localized stress concentration in the bearing raceway, exacerbating friction pad wear or brake disc scratches. Furthermore, forklifts cannot monitor rotating torque and vibration data in real time, making it difficult to detect early faults (such as rolling element peeling or shaft misalignment), leading to the accumulation of hidden dangers. Simultaneously, the forklift driver's blind spots may cause accidental contact with surrounding precision sensors or cables, increasing the risk of human error. Damage to high-value components of the wind turbine shaft system can result in repair costs reaching hundreds of thousands of yuan. Therefore, the application of forklifts in rotating wind turbine shaft systems suffers from significant drawbacks, including insufficient precision, numerous safety hazards, poor environmental adaptability, and low economic efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an automated turning device and a wind turbine bearing system containing the device, which can effectively solve the pain points of existing turning devices, such as low efficiency, high risk, and reliance on manual labor.

[0005] The technical solution provided by this utility model is as follows:

[0006] An automated turning device includes a bottom support unit, a motor, a pressure-bearing gear ring assembly, and a connecting assembly for connecting to a bearing housing. The pressure-bearing gear ring assembly is mounted above the bottom support unit. The connecting assembly is positioned above the pressure-bearing gear ring assembly and rotates together with it. The motor is effectively electrically connected to the pressure-bearing gear ring assembly and is used to control the rotation of the pressure-bearing gear ring assembly in both forward and reverse directions. The pressure-bearing gear ring assembly contains a spindle support frame for detachable connection to a spindle.

[0007] Preferably, the pressure-bearing bearing gear ring assembly includes a pressure-bearing bearing gear ring, a gear ring support plate, and a gear shaft. The pressure-bearing bearing gear ring is fixedly mounted on the gear ring support plate. The gear shaft meshes with the pressure-bearing bearing gear ring to achieve rotation, thereby driving the bearing seat to rotate and complete the turning. The gear shaft is connected to a motor and rotates under the drive of the motor. The lower end of the connecting assembly is connected to the gear ring support plate.

[0008] Preferably, a plurality of rollers are provided between the pressure bearing gear ring and the gear ring support plate.

[0009] Preferably, the connecting assembly includes a connecting plate and a connecting rod, the connecting rod being vertically disposed between the connecting plate and the pressure bearing gear ring assembly, and the connecting plate having a plurality of mounting holes.

[0010] Preferably, there are no fewer than three connecting plates, which are evenly distributed above the pressure bearing gear ring assembly, and the number of connecting rods is the same as the number of connecting plates.

[0011] Preferably, the connecting plate and the connecting rod are connected in a detachable manner.

[0012] Preferably, the bottom support unit includes an annular support frame, and a horizontal adjustment component is provided between the annular support frame and the main shaft support frame.

[0013] Preferably, the horizontal adjustment assembly includes several adjusting bolts and several support plates. The adjusting bolts are arranged in pairs, and the two adjusting bolts are respectively set at both ends of the support plates along the circumferential direction. The support plates are evenly arranged along the circumferential position where the bottom support unit is located.

[0014] Preferably, the motor is equipped with a remote control for controlling its start and stop.

[0015] A wind turbine bearing system, wherein the bearing housing is connected to the aforementioned automated turning device.

[0016] This invention has the following advantages over the prior art:

[0017] This invention's automated turning device, controlled by a remote controller, allows for turning of the bearing at a fixed workbench position. It employs an explosion-proof motor and gear reduction structure (pressure-bearing gear ring assembly), enabling one-button start to drive the bearing seat to rotate at low speed without manual intervention. Furthermore, its rationally designed structure prevents workers from operating in confined or high-temperature hazardous areas, improving operational safety and addressing the pain points of existing turning devices, such as low efficiency, high risk, and reliance on manual labor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the automated turning gear device in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the automated turning device in a specific application according to the embodiments of this utility model.

[0021] Figure label:

[0022] 1. Bottom support unit; 2. Motor; 3. Pressure bearing gear ring assembly; 31. Pressure bearing gear ring; 32. Gear ring support plate; 33. Gear shaft; 4. Bearing housing; 5. Connecting assembly; 51. Connecting plate; 511. Mounting hole; 52. Connecting rod; 6. Spindle support frame; 7. Spindle; 8. Horizontal adjustment assembly; 81. Adjusting bolt; 82. Support plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1 , 2 As shown, this utility model embodiment provides an automated turning device, including a bottom support unit 1, a motor 2, a pressure-bearing gear ring assembly 3, and a connecting component 5 for connecting with a bearing housing 4. The pressure-bearing gear ring assembly 3 is installed above the bottom support unit 1, and the connecting component 5 is positioned above the pressure-bearing gear ring assembly 3 and rotates together with the pressure-bearing gear ring assembly 3. The motor 2 is effectively electrically connected to the pressure-bearing gear ring assembly 3 and is used to control the rotation of the pressure-bearing gear ring assembly 3 in both forward and reverse directions. The pressure-bearing gear ring assembly 3 contains a main shaft support frame 6 for detachable connection with the main shaft 7. This main shaft 7 is a structural component in the wind turbine bearing system that passes through the bearing housing 4. During operation, the main shaft 7 is first positioned on the main shaft support frame 6, and the main shaft 7 is fixed to the main shaft support frame 6 by a positioning pin.

[0025] In this embodiment, the pressure-bearing bearing gear ring assembly 3 includes a pressure-bearing bearing gear ring 31, a gear ring support plate 32, and a gear shaft 33. The pressure-bearing bearing gear ring 31 is fixedly mounted on the gear ring support plate 32. The gear shaft 33 meshes with the pressure-bearing bearing gear ring 31 to achieve rotation, thereby driving the bearing seat 4 to rotate and complete the turning. The gear shaft 33 is connected to the motor 2 and rotates under the drive of the motor 2. The lower end of the connecting assembly 5 is connected to the gear ring support plate 32. Due to the large weight of the shaft system, the above-mentioned structural design can ensure high load-bearing reliability.

[0026] In this embodiment, the gear shaft 33 and the pressure bearing gear ring 31 are made of different materials with different hardness. The gear shaft 33 is made of copper, which is relatively soft, while the pressure bearing gear ring 31 is made of high-strength structural steel. When they mesh and rotate and wear each other, the gear shaft 33 will wear first, thus avoiding wear on the pressure bearing gear ring 31.

[0027] In this embodiment, a plurality of rollers (not shown in the figure) are provided between the bearing gear ring 31 and the gear ring support plate 32, which can bear axial load and allow the bearing gear ring 31 and the gear ring support plate 32 to rotate relative to each other.

[0028] In this embodiment, the connecting component 5 includes a connecting plate 51 and a connecting rod 52. The connecting rod 52 is vertically disposed between the connecting plate 51 and the pressure bearing gear ring assembly 3. The connecting plate 51 is provided with a plurality of mounting holes 511, which can be threaded holes. The connecting plate 51 and the bearing seat 4 can be detachably connected through the mounting holes 511.

[0029] In this embodiment, there are three connecting plates 51 evenly distributed above the bearing gear ring assembly 3. The number of connecting rods 52 is the same as the number of connecting plates 51, which can achieve uniform force distribution during rotation and improve rotation accuracy. The connecting plates 51 and connecting rods 52 are connected in a detachable manner, such as by plug-in or pin connection. The detachable connection method facilitates the replacement of different connecting plates 51 and enables universal use of shaft systems of different sizes.

[0030] In this embodiment, the bottom support unit 1 includes an annular support frame. The shape of the annular support frame can be adjusted using shafts of different sizes. A horizontal adjustment component 8 is provided between the annular support frame and the main shaft support frame 6, which can be used to adjust the levelness of the main shaft 7 after placement. The horizontal adjustment component 8 includes six adjusting bolts 81 and three support plates 82 (the support plates 82 are steel plate structures). The adjusting bolts 81 are arranged in pairs, with two adjusting bolts 81 respectively located at both ends of the support plates 82 along the annular direction. The support plates 82 are evenly distributed along the annular position of the bottom support unit 1. By adjusting the adjusting bolts 81 and tilting the bottom support unit 1, the levelness of the main shaft 7 after placement can be adjusted.

[0031] In this embodiment, the motor 2 can rotate in both directions. The number of motors 2 can be one or more. When there are multiple motors, they are connected in series and operate synchronously.

[0032] In this embodiment, motor 2 is equipped with a remote control to control its start and stop. The motor 2 can be started and stopped via the remote control, and it can also rotate in both directions. Automated turning of the vehicle can be achieved as long as the operator is in a safe position. The automated turning device, through precise control and convenient start / stop, solves the pain points of traditional turning operations, which rely on manual labor, are inefficient, and have high risks. The automated turning device in this embodiment replaces traditional forklift turning with an automated structural design. Compared to forklift turning, it fundamentally solves the problem of safety accidents, enables turning operations in confined workstations, saves workspace, improves site utilization, significantly increases work efficiency, and solves the problem of high labor intensity for workers.

[0033] A wind turbine bearing system, wherein the bearing housing is connected to the aforementioned automated turning device.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated turning gear device, characterized in that, It includes a bottom support unit, a motor, a pressure-bearing bearing gear ring assembly, and a connecting assembly for connecting to the bearing housing. The pressure-bearing bearing gear ring assembly is installed above the bottom support unit. The connecting assembly is positioned above the pressure bearing gear ring assembly and rotates together with the pressure bearing gear ring assembly. The motor is effectively electrically connected to the pressure bearing gear ring assembly and is used to control the pressure bearing gear ring assembly to rotate in both forward and reverse directions. The pressure-bearing gear ring assembly contains a spindle support frame for detachable connection with the spindle.

2. The automated turning gear device according to claim 1, characterized in that, The pressure-bearing bearing gear ring assembly includes a pressure-bearing bearing gear ring, a gear ring support plate, and a gear shaft. The pressure-bearing bearing gear ring is fixedly mounted on the gear ring support plate. The gear shaft meshes with the pressure-bearing bearing ring to achieve rotation, which in turn drives the bearing housing to rotate, thus completing the turning operation. The gear shaft is connected to the motor and rotates under the drive of the motor. The lower end of the connecting component is connected to the gear ring support plate.

3. The automated turning gear device according to claim 2, characterized in that, Several rollers are provided between the bearing gear ring and the gear ring support plate.

4. The automated turning gear device according to claim 1, characterized in that, The connecting assembly includes a connecting plate and a connecting rod. The connecting rod is vertically positioned between the connecting plate and the pressure-bearing bearing gear ring assembly. The connecting plate has several mounting holes.

5. The automated turning gear device according to claim 4, characterized in that, The number of connecting plates is no less than three, and they are evenly distributed above the pressure bearing gear ring assembly. The number of connecting rods is the same as the number of connecting plates.

6. The automated turning gear device according to claim 4, characterized in that, The connecting plate and the connecting rod are connected in a detachable manner.

7. The automated turning gear device according to any one of claims 1-6, characterized in that, The bottom support unit includes a ring-shaped support frame. A horizontal adjustment assembly is provided between the annular support frame and the main shaft support frame.

8. The automated turning gear device according to claim 7, characterized in that, The horizontal adjustment assembly includes several adjusting bolts and several support plates. The adjusting bolts are arranged in pairs, with each pair positioned at one end of the support plate along the circumferential direction. The support plates are evenly distributed along the annular position where the bottom support unit is located.

9. The automated turning gear device according to any one of claims 1-5, characterized in that, The motor is equipped with a remote control to control its start and stop.

10. A wind turbine bearing system, characterized in that, Its bearing housing is connected to the automated turning device as described in any one of claims 1-9.

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