Inner ring dismounting tool

Abstract

The application relates to an inner ring dismounting tool, belonging to the technical field of bearing dismounting, which comprises a fixing seat for being fixed on a main shaft and a jacking plate, the jacking plate is arranged around the main shaft in multiple pieces, the jacking plate is used for being installed below an inner ring, and a jacking piece for driving the jacking plate to move and abut against the bottom of the inner ring is arranged on the fixing seat. The application has the effect of facilitating the dismounting of the inner ring of the bearing from the main shaft.

Description

Technical Field

[0001] This application relates to the field of bearing assembly and disassembly technology, and in particular to a tooling for disassembling the inner ring. Background Technology

[0002] During the operation of wind power equipment, bearings, as a core component of critical parts, have a significant impact on the transmission system and performance of the wind turbine. When bearings malfunction during operation, they need to be returned to the factory for inspection. This requires removing the bearing from its mounting bracket for relevant tests. Due to the large diameter and mass of wind turbine main shaft bearings, and because the inner ring of the bearing is interference-fitted with the main shaft, conventional disassembly tools are insufficient to remove the bearing inner ring from the main shaft. Utility Model Content

[0003] To facilitate the removal of the bearing inner ring from the spindle, this application provides an inner ring removal tool.

[0004] The inner ring disassembly tooling provided in this application adopts the following technical solution: An inner ring disassembly fixture includes a fixed seat for fixing to a main shaft and a lifting plate. Multiple lifting plates are provided and surround the main shaft. The lifting plates are used to be installed below the inner ring. The fixed seat is provided with a lifting component for driving the lifting plates to move and abut against the bottom of the inner ring.

[0005] Optionally, the lifting member includes a mounting base and a driving member disposed on the mounting base. The mounting base is used to be fixedly disposed on the main shaft, and the lifting plate is used to be placed on the driving member and driven by the driving member to move the lifting plate and abut against the inner ring moving on the main shaft.

[0006] Optionally, the driving component includes a hydraulic cylinder fixedly mounted on the mounting base, wherein the piston rod of the hydraulic cylinder is perpendicular to the top surface of the mounting base and is used to drive the lifting plate to move.

[0007] Optionally, it also includes an annular platform for fitting the main shaft, with the lifting plate disposed on the annular platform, and the lifting component for driving the annular platform to lift the inner ring of the bearing.

[0008] Optionally, the lifting plate is slidably disposed on the annular platform, and the lifting plate slides toward the center of the annular platform. It also includes an adjusting component, which is used to adjust the position of the lifting plate on the annular platform so that the lifting plate is located at the bottom of the inner ring of the bearing.

[0009] Optionally, the adjusting component includes an adjusting bolt, which is threaded onto the annular platform and its length direction is perpendicular to the annular platform. The lifting plate has an adjusting notch, which is elongated and faces the center of the annular platform. The lifting plate adjusts the adjusting bolt through the adjusting notch, and the head of the adjusting bolt is used to press against the lifting plate.

[0010] Optionally, the lifting plate is an arc-shaped plate, with the concave end of the lifting plate facing the main shaft and fitting against the outer ring of the main shaft, and multiple adjustment notches are provided on the lifting plate.

[0011] Optionally, the mounting base has a connecting hole, and the mounting base is fixed to the spindle by means of fixing bolts passing through the connecting hole and the mounting hole on the spindle.

[0012] In summary, this application includes at least one of the following beneficial technical effects: 1. When removing the inner ring from the spindle, first place the fixing seat at the bottom of the spindle, then evenly distribute the lifting plates around the spindle and position the lifting plates below the inner ring. Then, the lifting components act on the lifting plates to move them to contact the inner ring and drive the inner ring to move upward, thereby moving the inner ring on the spindle and removing it from the spindle. The operation is simple and convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation structure of an inner ring disassembly fixture according to an embodiment of this application; Figure 2 This is a schematic diagram of the expansion state of the lifting plate in an inner ring disassembly tool according to an embodiment of this application; Figure 3 This is a schematic diagram of the retracted state of the lifting plate in an inner ring disassembly tool according to an embodiment of this application.

[0014] Explanation of reference numerals in the attached diagram: 1. Main shaft; 2. Fixed base; 3. Lifting plate; 4. Lifting component; 41. Mounting base; 42. Hydraulic cylinder; 5. Connecting hole; 6. Fixing bolt; 7. Circular platform; 8. Adjusting bolt; 9. Adjusting notch; 10. Lifting point; 11. Inner ring. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0016] This application discloses an inner ring disassembly fixture. (Refer to...) Figure 1The inner ring disassembly fixture includes a fixing seat 2 for fixing on the main shaft 1 and a lifting plate 3. In this embodiment, the main shaft 1 is placed vertically on the ground, and multiple lifting plates 3 are provided and surround the main shaft 1. The lifting plates 3 are used to be installed below the inner ring 11. The fixing seat 2 is provided with a lifting member 4 for driving the lifting plate 3 to move and abut against the bottom of the inner ring 11.

[0017] When removing the inner ring 11 from the spindle 1, first place the fixing seat 2 at the bottom of the spindle 1, then evenly distribute the lifting plates 3 around the spindle 1, and position the lifting plates 3 below the inner ring 11. Then, the lifting member 4 acts on the lifting plate 3, causing the lifting plate 3 to move and contact the inner ring 11, and drive the inner ring 11 to move upward, thereby moving the inner ring 11 on the spindle 1, thus removing the inner ring 11 from the spindle 1. The operation is simple and convenient.

[0018] Reference Figure 1 In this embodiment, the lifting member 4 includes a mounting base 41 and a driving member disposed on the mounting base 41. The mounting base 41 is fixedly mounted on the main shaft 1 and on the fixed seat 2 of the main shaft 1. The lifting plate 3 is placed on the driving member and moved by the driving member to abut against the inner ring 11 as it moves on the main shaft 1. After the main shaft 1 is erected, the mounting base 41 is installed on the fixed seat 2 of the main shaft 1. Then, the driving member drives the lifting plate 3 to move, which in turn moves the inner ring 11. The operation is simple and convenient. At the same time, the mounting base 41 is disposed on the fixed seat 2 of the main shaft 1, which facilitates the installation of the mounting base 41 and the driving member, thereby facilitating the removal of the bearing inner ring 11.

[0019] Reference Figure 1 In this embodiment, the mounting base 41 is provided with a connecting hole 5. The mounting base 41 is fixed to the spindle 1 by means of a fixing bolt 6 passing through the connecting hole 5 and the mounting hole on the spindle 1. By using the mounting hole on the spindle 1 fixing base 2 to fix the mounting base 41 to the spindle 1, the extra processing steps on the spindle 1 are avoided, thereby facilitating the installation of the mounting base 41 and the drive component.

[0020] Reference Figure 1 In this embodiment, the driving component includes a hydraulic cylinder 42 fixedly mounted on the mounting base 41. The piston rod of the hydraulic cylinder 42 is perpendicular to the top surface of the mounting base 41 and is used to drive the lifting plate 3 to move. When the lifting plate 3 is located below the inner ring 11 of the bearing and directly above the hydraulic cylinder 42, the hydraulic cylinder 42 is activated, the piston rod of the hydraulic cylinder 42 moves and lifts the lifting plate 3, thereby driving the lifting plate 3 to move. The operation is simple and convenient.

[0021] Reference Figure 1 , Figure 2 and Figure 3To facilitate the synchronous operation of multiple lifting plates 3 and the removal of the inner ring 11 from the main shaft 1, an annular platform 7 is also included. The annular platform 7 is used to connect to the main shaft 1. The lifting plates 3 are set on the annular platform 7 and are located above the annular platform 7. The lifting component 4 is used to drive the annular platform 7 and drive the lifting plates 3 to lift the bearing inner ring 11. The piston rod of the hydraulic cylinder 42 pushes the annular platform 7 to move along the main shaft 1. The annular platform 7 drives the lifting plates 3 to move, and the movement of the lifting plates 3 pushes the bearing inner ring 11 to move. Furthermore, the driving force of multiple hydraulic cylinders 42 is transmitted to the lifting plates 3 through the annular platform 7, so that multiple lifting plates 3 operate synchronously and act on the bearing inner ring 11. This facilitates the balanced force on the bearing inner ring 11 and keeps it sliding horizontally on the main shaft 1, reducing the possibility of the bearing inner ring 11 getting stuck due to tilting to one side, and facilitating the removal of the bearing inner ring 11.

[0022] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the lifting plate 3 is slidably disposed on the annular platform 7, and the lifting plate 3 slides toward the center of the annular platform 7. When installing the inner ring disassembly fixture, the annular platform 7 is hoisted and sleeved onto the main shaft 1. Then, the position of the lifting plate 3 on the annular platform 7 is adjusted so that the combined diameter of the multiple lifting plates 3 is greater than the diameter of the main shaft 1. Then, the annular platform 7 is lowered and falls onto the piston rod of the hydraulic cylinder 42. The position of the lifting plate 3 on the annular platform 7 is then adjusted so that the lifting plate 3 abuts against the outer ring of the main shaft 1 and supports the inner ring 11 of the bearing.

[0023] Reference Figure 1 , Figure 2 and Figure 3 Furthermore, it also includes an adjusting component, which is used to adjust the position of the lifting plate 3 on the annular platform 7 so that the lifting plate 3 is located at the bottom of the inner ring 11 of the bearing. The adjusting component includes an adjusting bolt 8, which is threaded onto the annular platform 7 and the length direction of the adjusting bolt 8 is perpendicular to the annular platform 7. An adjusting notch 9 is provided on the lifting plate 3. The adjusting notch 9 is elongated and faces the center of the annular platform 7. The lifting plate 3 adjusts the adjusting bolt 8 through the adjusting notch 9. The head of the adjusting bolt 8 is used to press against the lifting plate 3.

[0024] When adjusting the position of the lifting plate 3 on the annular platform 7, first turn the adjusting bolt 8 to separate the head of the adjusting bolt 8 from the lifting plate 3, then adjust the position of the lifting plate 3 on the annular platform. After the position of the lifting plate 3 is adjusted, turn the adjusting bolt 8 to press the lifting plate 3 onto the annular platform 7. The operation is simple and convenient.

[0025] Reference Figure 1 , Figure 2 and Figure 3In this embodiment, the lifting plate 3 is an arc-shaped plate, with its concave end facing the main shaft 1 and fitting against the outer ring of the main shaft 1. Multiple adjustment notches 9 are provided on the lifting plate 3. The arc shape of the lifting plate 3 increases the contact area between the lifting plate 3 and the inner ring 11, thereby improving the stability of the lifting plate 3 and reducing the possibility of the lifting plate 3 bending during the process of lifting the inner ring 11.

[0026] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment of the application, the annular platform 7 is provided with multiple lifting points 10, and the tooling for easy lifting and disassembly is sleeved on the main shaft 1.

[0027] The implementation principle of an inner ring disassembly fixture according to an embodiment of this application is as follows: When removing the bearing inner ring 11 on the spindle 1, first fix the mounting base 41 to the fixed base 2 of the spindle 1 with the fixing bolts 6. Then, hoist the annular platform 7, attach it to the spindle 1, and lower the annular platform 7 to support the hydraulic cylinder 42. Then, turn the adjusting bolt 8 to separate the head of the adjusting bolt 8 from the lifting plate 3. Then, adjust the position of the lifting plate 3 on the annular platform. After the position of the lifting plate 3 is adjusted, turn the adjusting bolt 8 to press the lifting plate 3 onto the annular platform 7. Then, start the hydraulic cylinder 42. The hydraulic cylinder 42 pushes the annular platform 7 to move, which in turn moves the lifting plate 3. The movement of the lifting plate 3 pushes the bearing inner ring 11 to move, thereby separating the interference fit section between the bearing inner ring 11 and the spindle 1. The operation is simple and convenient.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tooling for disassembling an inner ring, characterized in that: It includes a fixed seat (2) for fixing on the main shaft (1) and a lifting plate (3). The lifting plate (3) is provided in multiple pieces and surrounds the main shaft (1). The lifting plate (3) is used to be installed below the inner ring (11). The fixed seat (2) is provided with a lifting member (4) for driving the lifting plate (3) to move and abut against the bottom of the inner ring (11).

2. The inner ring disassembly fixture according to claim 1, characterized in that: The lifting member (4) includes a mounting base (41) and a driving member disposed on the mounting base (41). The mounting base (41) is used to be fixedly disposed on the main shaft (1). The lifting plate (3) is used to be placed on the driving member and driven by the driving member to move the lifting plate (3) and abut against the inner ring (11) moving on the main shaft (1).

3. The inner ring dismounting tool according to claim 2, characterized in that: The driving component includes a hydraulic cylinder (42) fixedly mounted on the mounting base (41), the piston rod of which is perpendicular to the top surface of the mounting base (41) and is used to drive the lifting plate (3) to move.

4. The inner ring dismounting tool according to claim 1, characterized in that: It also includes an annular platform (7), which is used to fit the main shaft (1), the lifting plate (3) is set on the annular platform (7), and the lifting member (4) is used to drive the annular platform (7) to drive the lifting plate (3) to lift the inner ring (11) of the bearing.

5. The inner ring dismounting tool according to claim 4, characterized in that: The lifting plate (3) is slidably disposed on the annular platform (7). The lifting plate (3) slides toward the center of the annular platform (7). It also includes an adjusting member, which is used to adjust the position of the lifting plate (3) on the annular platform (7) so that the lifting plate (3) is located at the bottom of the inner ring (11) of the bearing.

6. The inner ring dismounting tool according to claim 5, characterized in that: The adjusting component includes an adjusting bolt (8), which is threaded onto the annular platform (7) and the length direction of the adjusting bolt (8) is perpendicular to the annular platform (7). The lifting plate (3) has an adjusting notch (9), which is elongated and faces the center of the annular platform (7). The lifting plate (3) adjusts the adjusting bolt (8) through the adjusting notch (9). The head of the adjusting bolt (8) is used to press against the lifting plate (3).

7. The inner ring dismounting tool according to claim 6, characterized in that: The lifting plate (3) is an arc-shaped plate. The concave end of the lifting plate (3) faces the main shaft (1) and fits against the outer ring of the main shaft (1). Multiple adjustment notches (9) are opened on the lifting plate (3).

8. The inner ring dismounting tool according to claim 3, characterized in that: The mounting base (41) has a connecting hole (5). The mounting base (41) is fixed to the spindle (1) by means of fixing bolts (6) passing through the connecting hole (5) and the mounting hole on the spindle (1).

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