A wind power gear box body surface defect polishing device
By combining the transmission rod, grinding head, rotating sleeve and sliding sleeve, the problem of cumbersome grinding head replacement is solved, and simple disassembly and assembly and stable connection are achieved, which improves the efficiency of grinding defects on the surface of wind turbine gearbox housing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI DINGYI HEAVY IND MFG CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-07
AI Technical Summary
The existing grinding devices for surface defects in wind turbine gearboxes are cumbersome to disassemble and assemble when changing grinding heads, which affects processing efficiency.
It adopts a combination structure of transmission rod, grinding head, rotating sleeve and sliding sleeve, and achieves easy disassembly and assembly and stable connection of grinding head through the design of slot, guide groove, connecting block, L-shaped slot and spring.
It simplifies the grinding head replacement process, improves grinding efficiency, adapts to the grinding needs of different defect locations, and ensures the firmness and stability of the connection.
Smart Images
Figure CN224464435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine gearbox processing technology, and in particular to a device for grinding defects on the surface of a wind turbine gearbox housing. Background Technology
[0002] As a core mechanical component of wind turbine generators, the wind turbine gearbox, also known as a speed increaser, primarily functions to boost the low-speed rotation of the wind turbine to the high-speed rotation required for generator operation, thereby converting wind energy into electrical energy. During the manufacturing process of the wind turbine gearbox housing, surface defects of varying degrees are inevitable. To ensure the quality of the gearbox housing, these defective areas typically require grinding.
[0003] In practical applications, existing wind turbine gearbox housing surface defect grinding devices typically use bolt fixing to ensure the stability of the grinding head connection. However, given the complex surface structure of wind turbine gearbox housings and the need to use various types of grinding heads for grinding operations, the bolt fixing method makes the disassembly and assembly process cumbersome and inconvenient when frequently changing grinding heads, which greatly affects the grinding efficiency. Utility Model Content
[0004] This utility model relates to a grinding device for surface defects of wind turbine gearbox housings. It solves the problem that in practical applications, existing grinding devices for wind turbine gearbox housings typically use bolt fixing to ensure the stability of the grinding head connection. Given the complex surface structure of wind turbine gearbox housings and the need to use various types of grinding heads for grinding operations, the bolt fixing method is cumbersome and inconvenient when frequently changing grinding heads, which greatly affects the grinding efficiency.
[0005] In a first aspect, this utility model provides a grinding device for surface defects of a wind turbine gearbox housing, specifically comprising: a transmission rod, a grinding head, a rotating sleeve, and a sliding sleeve; the transmission rod is fixedly connected to the shaft of a handheld grinder, and a grinding head is connected to the end of the transmission rod, with the grinding heads being of different models; a rotating sleeve is installed on the outside of the transmission rod, and the rotating sleeve is connected to the grinding head; a sliding sleeve is fitted on the outside of the transmission rod, and the sliding sleeve is in contact with the rotating sleeve.
[0006] Furthermore, the end of the transmission rod is provided with a slot, and the outside of the grinding head is provided with a plug rod, which is inserted into the slot provided on the transmission rod.
[0007] Furthermore, a guide groove is provided around the outside of the slot, and a connecting block is provided around the outside of the insertion rod. The connecting block is slidably connected in the guide groove. When the insertion rod is inserted into the slot, the connecting block is located in the guide groove, preventing the grinding head from rotating, making it easier to disassemble and assemble the grinding head.
[0008] Furthermore, the rotating sleeve is rotatably connected to the transmission rod, and an L-shaped groove is provided around the outside of the rotating sleeve. The L-shaped groove is connected to the guide groove, and the end of the connecting block is located in the L-shaped groove. When the connecting block moves to the innermost end of the guide groove, the rotating sleeve is rotated to move the connecting block to the innermost end of the L-shaped groove, which achieves the effect of fixing the grinding head.
[0009] Furthermore, the sliding sleeve is slidably connected to the transmission rod, a fixed guide block is arranged around the outside of the transmission rod, and a movable hole is arranged around the outside of the sliding sleeve. The fixed guide block is slidably connected in the movable hole provided in the sliding sleeve, and the fixed guide block and the movable hole are slidably engaged to guide the movement of the sliding sleeve.
[0010] Furthermore, a limiting block is provided around the outer side of the sliding sleeve, and a limiting groove is provided around the outer side of the rotating sleeve, with the limiting block inserted into the limiting groove provided on the rotating sleeve.
[0011] Furthermore, a spring is fitted on the outside of the transmission rod. One end of the spring contacts the transmission rod, and the other end contacts the sliding sleeve. The spring provides an elastic reset effect for the sliding sleeve. When the connecting block moves to the innermost end of the L-shaped slot, the sliding sleeve is pushed back by the spring, causing the limiting block to insert into the limiting groove and lock the rotating sleeve in place.
[0012] This utility model provides a device for grinding surface defects of wind turbine gearbox housings, which has the following beneficial effects:
[0013] When this utility model is in use, after the insertion rod is inserted into the slot, the connecting block is located in the guide groove, preventing the grinding head from rotating, making it easier to disassemble and assemble the grinding head. This allows for the replacement of the grinding head type according to the grinding requirements of different positions on the surface of the wind turbine gearbox, making it better suited for grinding different defect positions. When the connecting block moves to the innermost end of the guide groove, the rotating sleeve is rotated to move the connecting block to the innermost end of the L-shaped slot, which fixes the grinding head and ensures the firmness of the connection between the grinding head and the transmission rod.
[0014] In addition, the fixed guide block slides with the movable hole to guide the movement of the sliding sleeve, and the spring provides elastic reset for the sliding sleeve. When the connecting block moves to the innermost end of the L-shaped groove, the sliding sleeve is pushed back by the spring, causing the limiting block to insert into the limiting groove and lock the rotating sleeve in place, ensuring the stability of the rotating sleeve. When it is necessary to change the grinding head, the sliding sleeve is moved in the opposite direction, the spring contracts under force, the limiting block separates from the limiting groove, the rotating sleeve is unlocked, and the rotating sleeve is rotated to move the connecting block to the bend position of the L-shaped groove, which allows the grinding head to be separated from the transmission rod, making the operation more convenient.
[0015] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0018] In the attached diagram:
[0019] Figure 1 A schematic diagram of the overall axonometric structure of this application is shown;
[0020] Figure 2 A schematic diagram of the disassembled structure of the grinding head and transmission rod of this application is shown;
[0021] Figure 3 A schematic diagram of the disassembled structure of the transmission rod, rotating sleeve, and sliding sleeve of this application is shown.
[0022] Figure label:
[0023] 1. Transmission rod; 101. Slot; 1011. Guide groove; 102. Fixed guide block;
[0024] 2. Grinding head; 201. Insert rod; 2011. Connecting block;
[0025] 3. Rotating sleeve; 301. L-shaped slot; 302. Limiting slot;
[0026] 4. Sliding sleeve; 401. Movable hole; 402. Limiting block;
[0027] 5. Spring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] Example 1: Please refer to Figures 1 to 3 :
[0030] This utility model discloses a grinding device for surface defects of a wind turbine gearbox housing, comprising: a transmission rod 1, a grinding head 2, a rotating sleeve 3, and a sliding sleeve 4; the transmission rod 1 is fixedly connected to the shaft of a handheld grinder, and the grinding head 2 is connected to the end of the transmission rod 1, with different models of grinding heads 2; the rotating sleeve 3 is installed on the outside of the transmission rod 1, and the rotating sleeve 3 is connected to the grinding head 2; the sliding sleeve 4 is fitted on the outside of the transmission rod 1, and the sliding sleeve 4 is in contact with the rotating sleeve 3; a slot 101 is provided at the end of the transmission rod 1, and an insertion rod 201 is provided on the outside of the grinding head 2, through which the insertion rod 201 is inserted. The insertion rod 201 is connected to the slot 101 provided in the transmission rod 1; the slot 101 is surrounded by a guide groove 1011, and the insertion rod 201 is surrounded by a connecting block 2011, which is slidably connected in the guide groove 1011; when the insertion rod 201 is inserted into the slot 101, the connecting block 2011 is located in the guide groove 1011, preventing the grinding head 2 from rotating, making the grinding head 2 easier to disassemble and assemble, so that the type of grinding head 2 can be changed according to the grinding needs of different positions on the surface of the wind turbine gearbox, and better suited to the grinding needs of different defect positions.
[0031] In this embodiment of the utility model, the rotating sleeve 3 is rotatably connected to the transmission rod 1. An L-shaped groove 301 is provided around the outside of the rotating sleeve 3. The L-shaped groove 301 is connected to the guide groove 1011. The end of the connecting block 2011 is located in the L-shaped groove 301.
[0032] Using the above technical solution, when the connecting block 2011 moves to the innermost end of the guide groove 1011, the rotating sleeve 3 is rotated to move the connecting block 2011 to the innermost end of the L-shaped slot 301, which fixes the grinding head 2 and ensures the firmness of the connection between the grinding head 2 and the transmission rod 1.
[0033] In Example 2, based on Example 1, the sliding sleeve 4 is slidably connected to the transmission rod 1. A fixed guide block 102 is arranged around the outside of the transmission rod 1, and a movable hole 401 is arranged around the outside of the sliding sleeve 4. The fixed guide block 102 is slidably connected in the movable hole 401 provided in the sliding sleeve 4. A limit block 402 is arranged around the outside of the sliding sleeve 4, and a limit groove 302 is arranged around the outside of the rotating sleeve 3. The limit block 402 is inserted into the limit groove 302 provided in the rotating sleeve 3. A spring 5 is fitted on the outside of the transmission rod 1. One end of the spring 5 contacts the transmission rod 1, and the other end of the spring 5 contacts the sliding sleeve 4.
[0034] Using the above technical solution, the guide block 102 slides with the movable hole 401 to guide the movement of the sliding sleeve 4, and the spring 5 provides elastic reset for the sliding sleeve 4. When the connecting block 2011 moves to the innermost end of the L-shaped slot 301, the sliding sleeve 4 is pushed back by the spring 5, causing the limiting block 402 to insert into the limiting groove 302, locking and fixing the rotating sleeve 3, and ensuring the stability of the rotating sleeve 3. When it is necessary to replace the grinding head 2, the sliding sleeve 4 is moved in the opposite direction, the spring 5 is compressed, the limiting block 402 separates from the limiting groove 302, the rotating sleeve 3 is unlocked, and the rotating sleeve 3 is rotated to move the connecting block 2011 to the turning position of the L-shaped slot 301, so that the grinding head 2 can be separated from the transmission rod 1, making the operation more convenient.
[0035] The working principle of this embodiment is as follows: First, the grinding head 2 is connected to the transmission rod 1. After the insertion rod 201 is inserted into the slot 101, the connecting block 2011 is located in the guide groove 1011, preventing the grinding head 2 from rotating. When the connecting block 2011 moves to the innermost end of the guide groove 1011, the rotating sleeve 3 is rotated, causing the connecting block 2011 to move to the innermost end of the L-shaped slot 301, thus fixing the grinding head 2. After the connecting block 2011 moves to the innermost end of the L-shaped slot 301, the sliding sleeve 4 is pushed back by the spring 5, causing the limiting block 402 to be inserted into the limiting groove 302, thus fixing the rotating sleeve 3. The locking mechanism ensures the stability of the rotating sleeve 3. The handheld grinder drives the grinding head 2 to rotate via the transmission rod 1, thus grinding the defective parts on the surface of the wind turbine gearbox. When the grinding head 2 needs to be replaced, the sliding sleeve 4 is moved in the opposite direction, the spring 5 is compressed, the limiting block 402 separates from the limiting groove 302, the rotating sleeve 3 is unlocked, and the rotating sleeve 3 is rotated so that the connecting block 2011 moves to the turning position of the L-shaped slot 301. This allows the grinding head 2 to be separated from the transmission rod 1, and different types of grinding heads 2 can be replaced to better suit the grinding needs of different defect locations.
[0036] The following points should be noted in this article:
[0037] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.
[0038] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.
[0039] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A device for grinding surface defects of a wind turbine gearbox housing, comprising: The transmission rod (1), grinding head (2), rotating sleeve (3), and sliding sleeve (4) are characterized in that the transmission rod (1) is fixedly connected to the rotating shaft of a handheld grinder, and the end of the transmission rod (1) is connected to a grinding head (2), which are of different models; a rotating sleeve (3) is installed on the outside of the transmission rod (1), and the rotating sleeve (3) is connected to the grinding head (2); a sliding sleeve (4) is fitted on the outside of the transmission rod (1), and the sliding sleeve (4) is in contact with the rotating sleeve (3).
2. The wind turbine gearbox housing surface defect grinding device according to claim 1, characterized in that, The transmission rod (1) has a slot (101) at its end, and the grinding head (2) has a plug (201) on its outside. The plug (201) is inserted into the slot (101) provided in the transmission rod (1).
3. The wind turbine gearbox housing surface defect grinding device according to claim 2, characterized in that, The slot (101) is surrounded by a guide groove (1011), and the plug (201) is surrounded by a connecting block (2011), which is slidably connected in the guide groove (1011).
4. The wind turbine gearbox housing surface defect grinding device according to claim 3, characterized in that, The rotating sleeve (3) is rotatably connected to the transmission rod (1). An L-shaped groove (301) is provided around the outside of the rotating sleeve (3). The L-shaped groove (301) is connected to the guide groove (1011). The end of the connecting block (2011) is located in the L-shaped groove (301).
5. The wind turbine gearbox housing surface defect grinding device according to claim 1, characterized in that, The sliding sleeve (4) is slidably connected to the transmission rod (1). A fixed guide block (102) is arranged around the outside of the transmission rod (1), and a movable hole (401) is arranged around the outside of the sliding sleeve (4). The fixed guide block (102) is slidably connected in the movable hole (401) provided in the sliding sleeve (4).
6. The wind turbine gearbox housing surface defect grinding device according to claim 1, characterized in that, The sliding sleeve (4) is surrounded by a limiting block (402), and the rotating sleeve (3) is surrounded by a limiting groove (302). The limiting block (402) is inserted into the limiting groove (302) provided in the rotating sleeve (3).
7. The wind turbine gearbox housing surface defect grinding device according to claim 1, characterized in that, The transmission rod (1) is fitted with a spring (5), one end of which is in contact with the transmission rod (1), and the other end of which is in contact with the sliding sleeve (4).