Planetary assembly bearing seat dismounting tool

Abstract

A dismounting tool for a planetary assembly bearing seat comprises a clamping bottom plate, a bearing seat, a bearing seat, a bearing seat, a bearing seat, a bearing seat and a bearing seat, wherein a circular hole is formed in the middle of the clamping bottom plate; the clamping lining is connected with the clamping bottom plate, the whole clamping lining is in a circular ring shape and can be divided into four parts, and the outer ring of the clamping lining can be exactly embedded into the circular recess in the clamping bottom plate; the bottoms of the multiple connecting devices are connected to the clamping lining; the stretching top plate is fixedly connected to the upper part of the connecting device and is parallel to the clamping bottom plate; and the induction heating coil is positioned above the clamping bushing and is wound on the outer ring of the bearing seat. According to the planetary assembly bearing seat dismounting tool, the problems that in an existing device, due to the fact that the size of the detachable position of the shaft tooth end face and the bearing seat end face is narrow, and the bearing seat and the gear shaft are large in fit interference magnitude, dismounting cannot be achieved through complete cold drawing are solved, and dismounting difficulty caused by the limited space structure is avoided; the device has the advantages of simple and compact structural form and convenience in installation and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a planetary assembly bearing seat disassembly tool. Background Art

[0002] During mechanical installation, many parts require a tight fit to prevent loose connections or transmit high torque, leading to the development of interference fit technology. An interference fit utilizes the elasticity of the material to expand and deform the hole to fit over the shaft. When the hole returns to its original shape, it creates a tightening force on the shaft, securing the connection between the two parts.

[0003] In wind turbine equipment, some components utilize interference fits for connection. However, the assembly and disassembly of components with interference fits presents several challenges. For example, the bearing seat in a particular planetary assembly structure is designed with a large chamfered slope at the disassembly location. This is because the end faces are covered by the shaft teeth, making it impossible to disassemble completely by cold drawing. Conventional disassembly methods are therefore not feasible. Utility Model Content

[0004] The main purpose of the utility model is to provide a planetary assembly bearing seat disassembly tool, which overcomes the above technical problems.

[0005] In order to achieve the above purpose, the present invention proposes the following technical solutions:

[0006] A planetary assembly bearing seat disassembly tool, comprising:

[0007] The clamping base plate has a circular hole in the middle, which is sleeved on the outer ring of the gear shaft. The diameter of the circular hole is smaller than the diameter of the bearing seat. A circular depression with a diameter larger than the circular hole is also provided above the circular hole.

[0008] The clamping bushing is connected to the clamping base plate. It is annular in shape and can be split into four parts. The outer ring of the clamping bushing can be inserted into the circular depression on the clamping base plate.

[0009] Connecting devices, wherein the bottoms of the plurality of connecting devices are connected to the clamping bushing;

[0010] Stretch the top plate and fix it to the upper part of the connecting device, parallel to the clamping bottom plate;

[0011] The induction heating coil is located above the clamping bushing and is wound around the outer ring of the bearing seat.

[0012] Furthermore, the connecting device is an M36 screw.

[0013] Furthermore, a plurality of shaft tooth end face avoidance grooves and insertion portions are distributed on the inner ring of the clamping bushing.

[0014] Furthermore, a plurality of connection holes are provided on the clamping bushing, and bolts pass through the connection holes to fix the clamping bushing to the clamping base plate.

[0015] Furthermore, the bolt is an M16 bolt.

[0016] Furthermore, the connection between the stretch top plate and the connecting device is a detachable connection.

[0017] Furthermore, it also includes a hydraulic cylinder, which is arranged between the clamping bushing and the stretching top plate, and when in use, the upper and lower ends respectively support the stretching top plate and the gear shaft.

[0018] Furthermore, a plurality of through holes are provided on the stretch top plate for connecting the fixed connection device.

[0019] Furthermore, a plurality of through holes are provided on the clamping base plate for fixing the connecting device.

[0020] Furthermore, a plurality of connection holes are provided on the clamping base plate, corresponding to the positions of the connection holes on the clamping bushing.

[0021] It solves the problems of large limitations, poor dimensional interchangeability and difficult disassembly of existing equipment, and has the advantages of flexible processing, strong dimensional interchangeability and easy and quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a planetary assembly bearing seat disassembly tool.

[0024] Figure 2 for Figure 1 Enlarged view of the structure at point a.

[0025] Figure 3 This is a schematic diagram of the clamping bushing structure.

[0026] Figure 4 It is a schematic diagram of the clamping base plate structure.

[0027] Figure 5 Schematic diagram of the tensile top plate structure.

[0028] The above drawings include the following reference numerals:

[0029] 1. Clamping base plate; 2. Clamping bushing; 3. Connecting device; 4. Stretching top plate; 5. Induction heating coil; 6. Hydraulic cylinder; 7. Gear shaft; 8. Bearing seat; 9. Slope chamfer of bearing seat; 21. Avoidance groove of shaft tooth end face; 22. Connecting hole; 23. Insertion part; 41. Through hole; 71. Gear shaft end face. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] Reference below Figures 1 to 5 , the utility model is further described:

[0034] A planetary assembly bearing seat disassembly tool, comprising:

[0035] The clamping base plate 1 has a circular hole in the middle, which is sleeved on the outer ring of the gear shaft 7. The diameter of the circular hole is smaller than the diameter of the bearing seat 8. A circular depression with a diameter larger than the circular hole is also provided above the circular hole.

[0036] The clamping bushing 2 is connected to the clamping base plate 1 and is annular in shape. It can be split into four parts. The outer ring of the clamping bushing 2 can be inserted into the circular recess on the clamping base plate 1.

[0037] Connecting devices 3, the bottoms of the multiple connecting devices 3 are connected to the clamping bushing 2;

[0038] The stretching top plate 4 is fixedly connected to the upper part of the connecting device 3 and is parallel to the clamping bottom plate 1;

[0039] The induction heating coil 5 is located above the clamping bushing 2 and is wound around the outer ring of the bearing seat 8 to heat the bearing seat 8 and assist in removing the bearing seat 8.

[0040] In this embodiment, the connecting device 3 is an M36 screw, and bolts of other specifications or other devices with a connecting function can be selected according to actual conditions.

[0041] In this embodiment, a plurality of shaft tooth end face avoidance grooves 21 and insertion portions 23 are distributed on the inner ring of the clamping bushing 2. During use, the tooth groove size needs to be simulated according to the tooth profile parameters of the gear shaft 7 for better clamping.

[0042] In this embodiment, a plurality of connection holes 22 are provided on the clamping bushing 2 , and bolts pass through the connection holes 22 to fix the clamping bushing 2 to the clamping base plate 1 .

[0043] In a preferred embodiment, the bolts are M16 bolts. In addition, bolts of other specifications or other devices with a fixing function can be selected according to actual conditions.

[0044] In this embodiment, the connection between the stretch top plate 4 and the connecting device 3 is a detachable connection, which is convenient for replacing parts according to usage and disassembly and storage after the operation is completed.

[0045] In this embodiment, a hydraulic cylinder 6 is further included, which is disposed between the clamping bushing 2 and the stretching top plate 4. When in use, the upper and lower ends of the hydraulic cylinder 6 respectively support the gear shaft 7 of the stretching top plate 4. The hydraulic cylinder 6 applies external force to the stretching top plate 4, which drives the clamping base 1 and the clamping bushing 2 to stretch the bearing seat 8 upward.

[0046] In this embodiment, a plurality of through holes 41 corresponding to the positions are respectively provided on the stretching top plate 4 and the clamping bottom plate 1 , and the stretching top plate 4 and the clamping bottom plate 1 are connected together by a fixed connection device 3 .

[0047] In this embodiment, a plurality of connection holes 22 are provided on the clamping base plate 1 , which correspond to the connection holes 22 on the clamping bushing 2 .

[0048] In a specific planetary assembly structure, the bearing seat has a large chamfered slope surface at the disassembly position, and the end face is covered by the end face of the shaft tooth. In addition, the interference fit between the matching hole size of the bearing seat 8 and the gear shaft 7 is large. Therefore, it is impossible to use conventional disassembly ideas to make a flat retaining ring to support the end face of the bearing seat 8.

[0049] The specific operation process is as follows:

[0050] S1. Simulate the tooth groove size according to the tooth profile parameters and make the clamping bushing 2;

[0051] S2. Fit the clamping bushing 2 to the tooth groove position of the gear shaft 7, and mark the positions of the four parts of the clamping bushing 2 on the clamping base plate 1 with numbers;

[0052] S3. Use M16 bolts to fix the clamping bushing 2 to the clamping base plate 1;

[0053] S4. Install the clamping base plate 1 with the clamping bushing 2 to the disassembly position of the bearing seat 8;

[0054] S5. Install the hydraulic cylinder 6 to the shaft end surface;

[0055] S6. Connect the stretching top plate 4 and the clamping bottom plate 1 together through four M36 long screws;

[0056] S7, installing the induction heating coil 5 to the outer ring of the bearing seat 8;

[0057] S8, connect the oil pipe to the interface of the hydraulic cylinder 6;

[0058] S9. Start the hydraulic cylinder 6 and the induction heating coil 5, test the pressure to the theoretically calculated disassembly pressure, and slowly remove the bearing seat 8.

[0059] In the above operation process, the purpose of marking the positions of the four parts of the clamping bushing 2 on the clamping base plate 1 with numbers is to accurately mark the corresponding positions of the four parts of the clamping bushing 2, which is more convenient for subsequent use.

[0060] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A planetary assembly bearing seat disassembly tool, characterized in that: include: A clamping base plate (1) is provided with a circular hole in the middle thereof, which is sleeved on the outer ring of the gear shaft (7), wherein the diameter of the circular hole is smaller than the diameter of the bearing seat (8), and a circular depression having a diameter larger than the circular hole is provided above the circular hole; A clamping bushing (2) is connected to the clamping base plate (1), is annular in shape as a whole, and can be split into four parts, and the outer ring of the clamping bushing (2) can just fit into the circular recess on the clamping base plate (1); Connecting devices (3), the bottoms of a plurality of connecting devices (3) being connected to the clamping bushing (2); A stretching top plate (4) is fixedly connected to the upper portion of the connecting device (3) and is parallel to the clamping bottom plate (1); An induction heating coil (5) is located above the clamping bushing (2) and is wound around the outer ring of the bearing seat (8).

2. A planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: The connecting device (3) is an M36 screw.

3. The planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: The inner ring of the clamping bushing (2) is distributed with a plurality of shaft tooth end face avoidance grooves (21) and insertion portions (23).

4. A planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: The clamping bushing (2) is provided with a plurality of connection holes (22), and bolts pass through the connection holes (22) to fix the clamping bushing (2) to the clamping base plate (1).

5. A planetary assembly bearing seat disassembly tool according to claim 4, characterized in that: The bolts are M16 bolts.

6. A planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: The connection between the stretching top plate (4) and the connecting device (3) is a detachable connection.

7. The planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: It also includes a hydraulic oil cylinder (6) which is arranged between the clamping bushing (2) and the stretching top plate (4), and when in use, the upper and lower ends respectively support the stretching top plate (4) and the gear shaft (7).

8. The planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: The stretching top plate (4) is provided with a plurality of through holes (41) for fixing the connecting device (3).

9. The planetary assembly bearing seat disassembly tool according to claim 1, characterized in that: The clamping base plate (1) is provided with a plurality of through holes (41) for fixing the connecting device (3).

10. A planetary assembly bearing seat disassembly tool according to claim 4, characterized in that: The clamping base plate (1) is provided with a plurality of connection holes (22), which correspond to the connection holes (22) on the clamping bushing (2).

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