Dismounting tool for ball blocking block of bearing

Abstract

The utility model belongs to the technical field of bearing tools, and particularly relates to a bearing ball blocking block dismounting tool which comprises a main shell, a screw rod, a nut and a conversion head. The main shell is supported on the outer diameter surface of the bearing, the screw rod is arranged in the main shell in a penetrating mode, one end, located in the main shell, of the screw rod is connected with a conversion head, the conversion head comprises a stud and a stud head which are integrated, the stud head is provided with a connecting screw hole connected with the screw rod, and the stud is used for being connected with a threaded hole of the ball blocking block. The diameter of the stud is matched with the inner diameter of the threaded hole of the ball blocking block; the part, located outside the main shell, of the screw is connected with a nut, the nut is kept close to the main shell, and the screw drives the adapter and the ball blocking block to be pulled out together by rotating the nut. The ball blocking block is slowly taken out through cooperation of the screw and the nut, the dismounting process is safe and stable, it is guaranteed that the ball blocking block is not strained, the product quality is guaranteed, damage to all parts caused by impact is avoided, and the tool use cost is reduced. When the dismounting space is narrow, the tool can be used, the production takt is accelerated, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bearing tooling technology, specifically relating to a bearing ball block disassembly tooling. Background Technology

[0002] Wind turbine bearing ball structure products have one or two ball-plugging holes for loading and unloading steel balls, which need to be repeatedly disassembled during the wind turbine bearing manufacturing process:

[0003] ① Before machining the raceway, the ball-plugging block needs to be inserted into the ball-plugging hole;

[0004] ② When assembling the test set of steel balls, the ball-blocking block needs to be removed, the steel balls installed, and then the ball-blocking hole plugged back in for testing clearance and torque;

[0005] ③ If the clearance and torque are not within the range as described above, the ball plug must be removed and replaced with a steel ball. Then, the ball plug must be replaced and the test repeated until the clearance and torque are within acceptable limits.

[0006] In existing bearing ball block disassembly fixtures, the front end of the device is connected to the ball block, and the ball block is removed from the bearing by the inertial impact force generated when the intermediate impact block slides through the polished rod to its end. This disassembly method has the following drawbacks:

[0007] ① Relying on the force of inertial impact to disassemble the ball block, the uneven force each time and the fact that the polished rod cannot form an absolute 90° with the bearing can easily generate forces in other directions, which can easily damage the ball block hole and the ball block;

[0008] ② Because it utilizes inertial impact, it requires a certain amount of space, and due to space constraints, it cannot be disassembled in special environments;

[0009] ③ Due to the repeated impacts caused by inertia, the force is uneven each time, and the polished rod cannot form a perfect 90° angle with the bearing, which easily generates forces in other directions. This makes the force on the thread of the plug block uneven in magnitude and direction, which will damage the thread of the plug block and result in the inability to disassemble it. Utility Model Content

[0010] In view of the defects of the existing technology, the purpose of this utility model is to provide a bearing ball block disassembly tool that can realize the fast, stable and high-quality disassembly of the ball block.

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a bearing plug disassembly fixture, comprising a main housing, a screw, a nut, and an adapter; the main housing is supported on the outer diameter surface of the bearing, the screw passes through the main housing, and the adapter is connected to one end of the screw inside the main housing. The adapter includes an integral stud and a stud head, and the stud head is provided with a connecting screw hole for connecting to the screw. The stud is used to connect with the threaded hole of the plug, and the diameter of the stud matches the inner diameter of the threaded hole of the plug; the part of the screw outside the main housing is connected to the nut, and the nut is kept close to the main housing. By rotating the nut, the screw drives the adapter and the plug together to be pulled out.

[0012] Furthermore, the main housing is a barrel-shaped structure that is closed at one end and open at the other end. The closed end of the main housing is provided with a central through hole for passing through the screw, and the open end of the main housing abuts against the outer diameter surface of the bearing outside the ball block.

[0013] Furthermore, the open end surface of the main housing is adapted to the outer diameter surface of the bearing.

[0014] Furthermore, the internal thread direction of the nut, the internal thread direction of the stud head connecting screw hole, and the internal thread direction of the plug block thread hole are the same.

[0015] Furthermore, the stud head is a circular body with tangled edges on both sides, and the side surface of the stud head is formed by alternating connections of planar and cylindrical surfaces.

[0016] Furthermore, the screw is equipped with multiple adapters of different specifications. The connecting screw holes of the multiple adapters are of the same specification, but the studs of the multiple adapters are of different specifications. The adapter corresponding to the stud is selected according to the internal thread specification of the threaded hole of the plug block.

[0017] Furthermore, the screw is an M20 screw, the adapter is an M10 adapter, the stud head of the M10 adapter has an M20 threaded hole, and the stud of the M10 adapter is an M10 stud.

[0018] Furthermore, the screw is an M20 screw, the adapter is an M12 adapter, the stud head of the M12 adapter has an M20 threaded hole, and the stud of the M12 adapter is an M12 stud.

[0019] Furthermore, the screw is an M20 screw, the adapter is an M16 adapter, the stud head of the M16 adapter has an M20 threaded hole, and the stud of the M16 adapter is an M16 stud.

[0020] The beneficial effects of this utility model are as follows: the screw and nut work together to slowly pull out the ball block, ensuring a safe and stable disassembly process, preventing damage to the ball block, guaranteeing product quality, avoiding impact-induced damage to components, and reducing tooling costs. This tooling can be used when disassembly space is limited, ensuring safe and stable disassembly, accelerating production pace, and improving production efficiency. Attached Figure Description

[0021] Figure 1 Diagram showing the working state of the bearing ball plug disassembly tooling;

[0022] Figure 2 for Figure 1 Enlarged view of the disassembly tooling;

[0023] Figure 3 Main shell sectional view (dimensions in mm);

[0024] Figure 4 Schematic diagram of the open end of the main shell (dimensions in mm);

[0025] Figure 5 Here is a schematic diagram of the screw (dimensions in mm);

[0026] Figure 6 A schematic diagram of the stud head of the adapter (dimensions in mm);

[0027] Figure 7 Schematic diagram of M10 adapter (dimensions in mm);

[0028] Figure 8 Schematic diagram of M12 adapter (dimensions in mm);

[0029] Figure 9 Schematic diagram of M16 adapter (dimensions in mm);

[0030] In the diagram: 1. Main housing, 101. Central through hole, 2. Screw, 3. Nut, 4. Adapter, 401. Stud, 402. Stud head, 403. Connecting screw hole, 5. Bearing, 6. Ball plug, 7. Wrench. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] See appendix Figure 1-6 A bearing plug disassembly fixture includes a main housing 1, a screw 2, a nut 3, and an adapter 4. The main housing 1 is supported on the outer diameter surface of the bearing 5. The screw 2 passes through the main housing 1, and the adapter 4 is connected to one end of the screw 2 inside the main housing 1. The adapter 4 includes an integral stud 401 and a stud head. The stud head 402 is provided with a connecting screw hole 403 for connecting to the screw 2. The stud 402 is used to connect to the threaded hole of the plug 6, and the diameter of the stud matches the inner diameter of the threaded hole of the plug 6. The part of the screw 2 outside the main housing 1 is connected to the nut 3. The nut 3 is kept close to the main housing 1. By rotating the nut 3, the screw 2 drives the adapter 4 and the plug 6 to be pulled out together. The internal thread direction of the nut 3, the internal thread direction of the connecting screw hole 403 of the stud head, and the internal thread direction of the threaded hole of the plug 6 are the same to prevent the screw 2, the adapter 4, and the plug 6 from disengaging when the nut 3 is rotated.

[0033] In use, use wrench 7 to rotate nut 3, ensuring that nut 3 rotates in the same direction on screw 2. Initially, screw 2 remains stationary, while nut 3 moves along screw 2 until it contacts and presses against main housing 1. At this point, main housing 1 acts as a support for nut 3, preventing it from moving. Continue rotating nut 3 in the same direction, causing screw 2 to move outward. Screw 2, along with adapter 4 and ball plug 6, is pulled out, completing the removal of ball plug 6. It should be noted that ball plug 6 is generally a wedge-shaped structure. The frictional resistance is relatively high when force is initially applied. After ball plug 6 begins to move, it and the ball plug hole are in a clearance fit, making it easy to remove. Therefore, after nut 3 contacts main housing 1, only a few rotations of nut 3 are needed to give ball plug 6 an initial displacement and create a gap with the ball plug hole, allowing screw 2 and ball plug 6 to be pulled out directly.

[0034] Furthermore, the main housing 1 is a barrel-shaped structure that is closed at one end and open at the other. The closed end of the main housing is provided with a central through hole 101 for the screw 2 to pass through, and the open end of the main housing 1 abuts against the outer diameter surface of the bearing outside the ball block. The surface of the open end of the main housing is adapted to the outer diameter surface of the bearing, that is, the surface of the open end of the main housing forms a cylindrical concave structure, so that the main housing can be stably supported on the outer diameter surface of the bearing.

[0035] Furthermore, the dimensions of the main housing and the screw can be selected based on the bearing dimensions and different space conditions. See Appendix Figure 3-5In this embodiment, the main housing is 200mm long and the closed end is 60mm thick to ensure strength. The inner diameter of the main housing is 120mm, the outer diameter is 180mm, and the diameter of the central through hole is 21mm. The central through hole is a smooth hole to facilitate the insertion of the screw. In this embodiment, the screw diameter is 20mm, slightly smaller than the diameter of the central through hole of the main housing, and the two form a clearance fit to avoid hindering the screw displacement. The screw length is 300mm, which is greater than the length of the main housing, and is used to connect the nut.

[0036] See appendix Figure 6 The stud head 402 is a circular body with chamfered edges on both sides, and the side surface of the stud head is formed by alternating connections of flat and cylindrical surfaces. The flat surfaces on both sides facilitate clamping and fixing the stud head 402, and facilitate the installation and removal of the adapter head 4.

[0037] See appendix Figure 7-9 In this embodiment, based on common plug plug thread hole sizes, three adapters are provided for the M20 screw. Each adapter has the same connecting thread hole specification, all being M20 thread holes compatible with the M20 screw. The stud specifications of the three adapters differ: the first adapter is an M10 adapter with an M10 stud; the second adapter is an M12 adapter with an M12 stud; and the third adapter is an M16 adapter with an M16 stud. The adapter corresponding to the stud is selected based on the internal thread specification of the plug plug thread hole.

[0038] The bearing plug disassembly fixture of this embodiment can quickly, smoothly, and with high quality disassemble the wind turbine ball bearing plug. This device is small in size and can also be used in specific confined spaces, such as for endoscopic inspection of the internal raceway of a bearing that has been used for a certain period of time. At this time, the bearing is inside the wind turbine hub, and the space is confined, so this device can be used.

[0039] It should be noted that the parts of this utility model not described in detail are existing technologies.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0045] The above-listed embodiments are merely preferred embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A tooling for disassembling bearing ball plugs, characterized in that: The device includes a main housing, a screw, a nut, and an adapter. The main housing is supported on the outer diameter surface of the bearing. The screw passes through the main housing, and the adapter is connected to one end of the screw inside the main housing. The adapter includes an integral stud and a stud head. The stud head has a connecting screw hole for connecting to the screw. The stud is used to connect to the threaded hole of the plug block, and the diameter of the stud matches the inner diameter of the threaded hole of the plug block. The part of the screw outside the main housing is connected to the nut. The nut is kept close to the main housing. By rotating the nut, the screw drives the adapter and the plug block to be pulled out together.

2. The bearing ball plug disassembly fixture according to claim 1, characterized in that: The main housing is a barrel-shaped structure that is closed at one end and open at the other end. The closed end of the main housing is provided with a central through hole for passing through the screw, and the open end of the main housing abuts against the outer diameter surface of the bearing outside the ball block.

3. The bearing ball plug disassembly fixture according to claim 2, characterized in that: The open end surface of the main housing is adapted to the outer diameter surface of the bearing.

4. The bearing ball plug disassembly fixture according to claim 1, characterized in that: The internal thread direction of the nut, the internal thread direction of the stud head connecting screw hole, and the internal thread direction of the plug block thread hole are the same.

5. The bearing ball plug disassembly fixture according to claim 1, characterized in that: The stud head is a circular body with cut edges on both sides, and the side surface of the stud head is formed by alternating connection of plane and cylindrical surfaces.

6. The bearing ball plug disassembly fixture according to claim 1, characterized in that: The screw is equipped with multiple adapters of different specifications. The connecting screw holes of the multiple adapters are of the same specification, but the studs of the multiple adapters are different. The adapter corresponding to the stud is selected according to the internal thread specification of the threaded hole of the plug block.

7. A bearing ball plug disassembly fixture according to any one of claims 1-6, characterized in that: The screw is an M20 screw, the adapter is an M10 adapter, the stud head of the M10 adapter has an M20 threaded hole, and the stud of the M10 adapter is an M10 stud.

8. A bearing ball plug disassembly fixture according to any one of claims 1-6, characterized in that: The screw is an M20 screw, the adapter is an M12 adapter, the stud head of the M12 adapter has an M20 threaded hole, and the stud of the M12 adapter is an M12 stud.

9. A bearing ball plug disassembly fixture according to any one of claims 1-6, characterized in that: The screw is an M20 screw, the adapter is an M16 adapter, the stud head of the M16 adapter has an M20 threaded hole, and the stud of the M16 adapter is an M16 stud.

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