A heavy super large wind power gear machining fast stable clamping device

By combining the design of support columns, connecting plates, clamping mechanisms, rotating mechanisms and pushing mechanisms, the problem of clamping stability of wind turbine gear clamping devices is solved, and high-precision machining and multi-specification adaptability of heavy-duty and ultra-large wind turbine gears are realized, reducing equipment replacement cycles and costs.

CN122210133APending Publication Date: 2026-06-16NANJING YUNENG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING YUNENG MASCH CO LTD
Filing Date
2026-04-17
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing wind turbine gear clamping devices lack clamping stability, are prone to gear misalignment and movement, affecting machining accuracy, and are difficult to adapt to flexible production of gears of various specifications, resulting in high equipment investment costs.

Method used

The design employs a combination of support columns, connecting plates, clamping mechanisms, rotating mechanisms, and pushing mechanisms. It utilizes hydraulic cylinders and servo motors to drive the surface contact clamping and smooth rotation. The clamping mechanism includes a support frame, hydraulic cylinder, pushing plate, rotating component, lifting plate, rotating plate, U-shaped plate, slider, and arc-shaped clamping plate. The rotating mechanism drives the rotating shaft and drive gears via a servo motor, and the pushing mechanism adjusts the height of the fixed platform via a hydraulic cylinder.

Benefits of technology

It improves the machining accuracy and stability of heavy-duty ultra-large wind turbine gears, prevents gear misalignment, adapts to the machining requirements of gears of different specifications, and reduces equipment replacement cycle and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of wind power gear machining technology, and discloses a quick and stable clamping device for heavy and super-large wind power gear machining, which comprises a supporting column, a connecting plate is fixedly connected to the top of the supporting column, a supporting cylinder is fixedly connected to the top of the connecting plate, a fixing table is fixedly connected to the top of the supporting cylinder, a rotating mechanism is arranged at the top of the fixing table, a clamping mechanism is arranged at the bottom of the fixing table, a pushing mechanism is arranged outside the supporting cylinder, a gear body is arranged inside the clamping mechanism, the clamping mechanism comprises a supporting frame, the supporting frame is fixedly connected to the bottom of the fixing table, and a first hydraulic cylinder is fixedly connected to the bottom of the supporting frame. The first hydraulic cylinder drives a pushing plate to lift, linkage rotating pieces, a lifting plate and a rotating plate drive a sliding block to slide along a rotating disc moving groove, arc-shaped clamping plates are synchronously clamped to the periphery of the gear body, surface contact clamping is formed, and the gear body is more stable during machining.
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Description

Technical Field

[0001] This invention relates to the field of wind turbine gear processing technology, specifically a fast and stable clamping device for processing heavy-duty, ultra-large wind turbine gears. Background Technology

[0002] In the field of wind power equipment, heavy-duty ultra-large wind turbine gears are core transmission components. Their large tooth width and module mean that their machining accuracy directly determines the transmission efficiency and operational stability of wind power equipment. During precision machining processes such as turning, milling, and grinding, these gears must withstand high torque cutting forces and high-frequency vibrations, placing stringent requirements on the stability, centering accuracy, and operational efficiency of the clamping device.

[0003] Existing wind turbine gear clamping devices have shortcomings, including insufficient clamping stability. Traditional clamping methods often use single-point or line contact clamping, resulting in a small force-bearing area. Under the strong vibration and high torque of heavy gear processing, gear misalignment and axial movement are prone to occur, leading to excessive tooth pitch error and tooth surface roughness, which seriously affects processing accuracy. Furthermore, the clamping adaptability is poor, requiring customized clamping fixtures for wind turbine gears of different diameters and tooth widths. This results in long changeover cycles, high equipment investment costs, and difficulty in meeting the flexible production needs of multi-specification gears. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a fast and stable clamping device for machining heavy-duty ultra-large wind turbine gears, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fast and stable clamping device for processing heavy-duty ultra-large wind turbine gears, comprising a support column, a connecting plate fixedly connected to the top of the support column, a support cylinder fixedly connected to the top of the connecting plate, a fixed platform fixedly connected to the top of the support cylinder, a rotating mechanism provided at the top of the fixed platform, a clamping mechanism provided at the bottom of the fixed platform, a pushing mechanism provided on the outside of the support cylinder, and a gear body provided on the inside of the clamping mechanism;

[0006] The clamping mechanism includes a support frame, which is fixedly connected to the bottom of the fixed platform. A first hydraulic cylinder is fixedly connected to the bottom of the support frame. A push plate is fixedly connected to the top of the first hydraulic cylinder. A limit rod is fixedly connected to the bottom of the push plate. A rotating component is fixedly connected to the top of the push plate. A lifting plate is rotatably connected to the periphery of the rotating component. A rotating plate is rotatably connected to the outer side of the lifting plate. A U-shaped plate is rotatably connected to the top of the outer side of the rotating plate. A slider is fixedly connected to the top of the U-shaped plate. A rotating disk is slidably connected to the periphery of the slider. An arc-shaped clamping plate is fixedly connected to the top of the slider.

[0007] Preferably, there are two limiting rods, which are fixedly connected to the left and right sides of the bottom of the push plate, and are slidably connected to the inner side of the support frame. The limiting rods can limit the push plate, making the push plate more stable during the lifting and lowering process.

[0008] Preferably, the inner side of the lifting plate is provided with a circular groove corresponding to the movement trajectory of the rotating component, and the rotating component is rotatably connected to the inside of the circular groove. Through the circular groove, the rotating component can rotate inside the lifting plate, so that the rotating plate does not easily obstruct the rotation of the rotating disk.

[0009] Preferably, the inner side of the rotating disk is provided with a moving groove corresponding to the movement trajectory of the slider, and the slider is slidably connected to the inside of the moving groove. Through the moving groove, the slider can slide inside the rotating disk, so that the U-shaped plate can drive the slider and the clamping plate to move during the movement.

[0010] Preferably, the arc-shaped clamp is disposed around the gear body, and the inner side of the arc-shaped clamp is in close contact with the outer side of the gear body. The arc-shaped clamp can clamp and fix the gear body, making the gear body more stable during processing.

[0011] Preferably, the rotating mechanism includes a connecting frame, which is fixedly connected to the top of the fixed platform. A servo motor is fixedly connected to the top of the connecting frame, and a rotating shaft is fixedly connected to the bottom of the servo motor. A drive gear is fixedly connected to the periphery of the rotating shaft, and a rotating gear meshes with the left side of the drive gear. The rotating gear is fixedly connected to the periphery of the rotating disk.

[0012] Preferably, the inner side of the fixed platform is provided with a rotating groove corresponding to the movement trajectory of the rotating gear, and the rotating gear is rotatably connected inside the rotating groove. Through the rotating groove, the rotating gear can rotate inside the fixed platform. The rotating gear can support the rotating disk, so that when the rotating gear operates, it can drive the rotating disk to rotate.

[0013] Preferably, the rotating shaft is rotatably connected to the inner side of the connecting frame, and the bottom of the rotating shaft is rotatably connected to the top of the fixed platform, so that when the servo motor is operating, it can drive the drive gear to rotate through the rotating shaft, making the drive gear more stable during the rotation process.

[0014] Preferably, the pushing mechanism includes a fixed plate, which is fixedly connected to the outside of the support cylinder. A second hydraulic cylinder is fixedly connected to the bottom of the fixed plate, the top of the second hydraulic cylinder is fixedly connected to the bottom of the fixed platform, and a sliding strip is fixedly connected to the bottom of the fixed platform.

[0015] Preferably, the inner side of the support cylinder is provided with a guide groove corresponding to the movement trajectory of the sliding bar, and the sliding bar is slidably connected inside the guide groove. The guide groove can limit the sliding bar, making the sliding bar more stable during the lifting and lowering process.

[0016] Compared with the prior art, the present invention provides a fast and stable clamping device for machining heavy-duty ultra-large wind turbine gears, which has the following advantages:

[0017] 1. This fast and stable clamping device for machining heavy-duty ultra-large wind turbine gears has a clamping mechanism in which a first hydraulic cylinder drives the push plate to rise and fall. The linkage rotating component, the lifting plate, and the rotating plate drive the slider to slide along the moving groove of the rotating disk, so that the arc-shaped clamping plate synchronously clamps the outer periphery of the gear body, forming a surface contact clamping. With the limiting rod limiting the push plate, it effectively avoids the gear body from shifting or shaking during clamping and machining, resists cutting vibration and torque, and ensures machining accuracy. At the same time, the arc-shaped clamping plate fits the contour of the heavy-duty ultra-large wind turbine gear body, which can prevent damage to the surface of the heavy-duty ultra-large wind turbine gear body.

[0018] 2. This fast and stable clamping device for machining heavy-duty ultra-large wind turbine gears uses a servo motor to drive the rotating shaft and drive gear in the rotating mechanism. The drive gear drives the rotating gear to rotate synchronously with the rotating disk. With the support and limit of the rotating gear by the rotating slot of the fixed table, the heavy-duty ultra-large wind turbine gear body can rotate smoothly, meeting the processing requirements of multiple processes such as turning and milling. The rotation accuracy and stability are significantly improved.

[0019] 3. In this rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears, the second hydraulic cylinder in the pushing mechanism pushes the fixed table upward, allowing the height of the fixed table to be adjusted. This, in turn, causes the fixed table to move the clamped heavy-duty ultra-large wind turbine gear body upward, thus adjusting the machining height of the gear body. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the clamping mechanism.

[0023] Figure 3 This is a schematic diagram of the rotating mechanism.

[0024] Figure 4 This is a schematic diagram of the push plate and rotating components.

[0025] Figure 5 This is a schematic diagram of the rotating disk and rotating gear structure;

[0026] Figure 6 To promote the structural diagram.

[0027] In the diagram: 1. Support column; 2. Connecting plate; 3. Support cylinder; 4. Clamping mechanism; 41. Rotating plate; 42. U-shaped plate; 43. Lifting plate; 44. First hydraulic cylinder; 45. Limiting rod; 46. Pushing plate; 461. Rotating component; 47. Support frame; 48. Slider; 49. Arc-shaped clamping plate; 401. Rotating disk; 5. Fixed platform; 6. Gear body; 7. Rotating mechanism; 71. Servo motor; 72. Rotating shaft; 73. Connecting frame; 74. Drive gear; 75. Rotating gear; 8. Pushing mechanism; 81. Second hydraulic cylinder; 82. Fixed plate; 83. Sliding bar. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] This invention provides the following technical solutions:

[0031] Example 1

[0032] Please see Figure 1-6 The present invention provides a technical solution: a fast and stable clamping device for processing heavy-duty ultra-large wind turbine gears, including a support column 1, a connecting plate 2 fixedly connected to the top of the support column 1, a support cylinder 3 fixedly connected to the top of the connecting plate 2, a fixed platform 5 fixedly connected to the top of the support cylinder 3, a rotating mechanism 7 provided on the top of the fixed platform 5, a clamping mechanism 4 provided at the bottom of the fixed platform 5, a pushing mechanism 8 provided on the outside of the support cylinder 3, and a gear body 6 provided on the inside of the clamping mechanism 4;

[0033] The clamping mechanism 4 includes a support frame 47, which is fixedly connected to the bottom of the fixed platform 5. A first hydraulic cylinder 44 is fixedly connected to the bottom of the support frame 47. A push plate 46 is fixedly connected to the top of the first hydraulic cylinder 44. A limit rod 45 is fixedly connected to the bottom of the push plate 46. A rotating component 461 is fixedly connected to the top of the push plate 46. A lifting plate 43 is rotatably connected to the periphery of the rotating component 461. A rotating plate 41 is rotatably connected to the outer side of the lifting plate 43. A U-shaped plate 42 is rotatably connected to the top of the outer side of the rotating plate 41. A slider 48 is fixedly connected to the top of the U-shaped plate 42. A rotating disk 401 is slidably connected to the periphery of the slider 48. An arc-shaped clamping plate 49 is fixedly connected to the top of the slider 48.

[0034] Furthermore, there are two limit rods 45. The two limit rods 45 are fixedly connected to the left and right sides of the bottom of the push plate 46, and the two limit rods 45 are slidably connected to the inner side of the support frame 47. The limit rods 45 can limit the push plate 46, making the push plate 46 more stable during the lifting and lowering process.

[0035] Furthermore, a circular groove corresponding to the movement trajectory of the rotating member 461 is provided on the inner side of the lifting plate 43, and the rotating member 461 is rotatably connected to the inside of the circular groove. Through the circular groove, the rotating member 461 can rotate inside the lifting plate 43, so that the rotating plate 41 does not easily obstruct the rotation of the rotating disk 401.

[0036] Furthermore, a moving groove corresponding to the movement trajectory of the slider 48 is provided on the inner side of the rotating disk 401, and the slider 48 is slidably connected inside the moving groove. Through the moving groove, the slider 48 can slide inside the rotating disk 401, so that the U-shaped plate 42 can drive the slider 48 and the clamping plate to move during the movement.

[0037] Furthermore, the arc-shaped clamping plate 49 is disposed around the gear body 6, and the inner side of the arc-shaped clamping plate 49 fits against the outer side of the gear body 6. The arc-shaped clamping plate 49 can clamp and fix the gear body 6, making the gear body 6 more stable during processing.

[0038] Example 2

[0039] Please see Figure 1-6 Furthermore, based on Embodiment 1, the rotating mechanism 7 includes a connecting frame 73, which is fixedly connected to the top of the fixed platform 5. A servo motor 71 is fixedly connected to the top of the connecting frame 73, and a rotating shaft 72 is fixedly connected to the bottom of the servo motor 71. A drive gear 74 is fixedly connected to the periphery of the rotating shaft 72. A rotating gear 75 meshes with the left side of the drive gear 74, and the rotating gear 75 is fixedly connected to the periphery of the rotating disk 401.

[0040] Furthermore, a rotating groove corresponding to the movement trajectory of the rotating gear 75 is provided on the inner side of the fixed platform 5, and the rotating gear 75 is rotatably connected inside the rotating groove. Through the rotating groove, the rotating gear 75 can rotate inside the fixed platform 5. The rotating gear 75 can support the rotating disk 401, so that when the rotating gear 75 is in operation, it can drive the rotating disk 401 to rotate.

[0041] Furthermore, the rotating shaft 72 is rotatably connected to the inner side of the connecting frame 73, and the bottom of the rotating shaft 72 is rotatably connected to the top of the fixed platform 5, so that when the servo motor 71 is operating, it can drive the drive gear 74 to rotate through the rotating shaft 72, making the drive gear 74 more stable during rotation.

[0042] Example 3

[0043] Please see Figure 1-6 Furthermore, based on Embodiment 1, the pushing mechanism 8 further includes a fixed plate 82, which is fixedly connected to the outside of the support cylinder 3. A second hydraulic cylinder 81 is fixedly connected to the bottom of the fixed plate 82, and the top of the second hydraulic cylinder 81 is fixedly connected to the bottom of the fixed platform 5. A sliding strip 83 is fixedly connected to the bottom of the fixed platform 5.

[0044] Furthermore, the inner side of the support cylinder 3 is provided with a guide groove corresponding to the movement trajectory of the sliding bar 83, and the sliding bar 83 is slidably connected inside the guide groove. The guide groove can limit the sliding bar 83, making the sliding bar 83 more stable during the lifting and lowering process.

[0045] In actual operation, when this device is used and it is necessary to process the heavy-duty ultra-large wind turbine gear body 6, the heavy-duty ultra-large wind turbine gear body 6 is placed on top of the rotating disk 401, the first hydraulic cylinder 44 switch is turned on, causing the first hydraulic cylinder 44 to push the push plate 46 to move, so that the push plate 46 can drive the lifting plate 43 to move downward through the rotating component 461, so that the lifting plate 43 can drive the U-shaped plate 42 and the slider 48 to move through the rotating plate 41, so that the slider 48 can drive the arc-shaped clamping plate 49 to move, so that the arc-shaped clamping plate 49 can move the heavy-duty ultra-large wind turbine gear body 6. The gear body 6 is clamped and fixed. When the heavy-duty super-large wind turbine gear body 6 needs to be rotated after clamping, the servo motor 71 switch is turned on, so that the servo motor 71 drives the drive gear 74 to rotate through the rotating shaft 72, so that the drive gear 74 drives the rotating disk 401 to rotate through the rotating gear 75, so that the rotating disk 401 can drive the arc-shaped clamping plate 49 to rotate through the slider 48, so that the arc-shaped clamping plate 49 can drive the clamped heavy-duty super-large wind turbine gear body 6 to rotate, so that the device can be adapted to different processing requirements.

[0046] When the rotating disk 401 rotates, it can drive the U-shaped plate 42 and the rotating plate 41 to rotate through the slider 48, so that the rotating plate 41 can drive the lifting plate 43 to rotate, and the lifting plate 43 can rotate around the rotating part 461, so that when the first hydraulic cylinder 44 is working, it will not easily hinder the operation of the servo motor 71.

[0047] When the height of the fixed platform 5 needs to be adjusted, the switch of the second hydraulic cylinder 81 is turned on, so that the second hydraulic cylinder 81 pushes the fixed platform 5 upward, so that the height of the fixed platform 5 can be adjusted, and the heavy-duty ultra-large wind turbine gear body 6 can be adapted to the processing requirements of different heights.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A fast and stable clamping device for machining heavy-duty ultra-large wind turbine gears, comprising a support column (1), characterized in that: The top of the support column (1) is fixedly connected to a connecting plate (2), the top of the connecting plate (2) is fixedly connected to a support cylinder (3), the top of the support cylinder (3) is fixedly connected to a fixed platform (5), the top of the fixed platform (5) is provided with a rotating mechanism (7), the bottom of the fixed platform (5) is provided with a clamping mechanism (4), the outside of the support cylinder (3) is provided with a pushing mechanism (8), and the inside of the clamping mechanism (4) is provided with a gear body (6). The clamping mechanism (4) includes a support frame (47), which is fixedly connected to the bottom of the fixed platform (5). A first hydraulic cylinder (44) is fixedly connected to the bottom of the support frame (47). A push plate (46) is fixedly connected to the top of the first hydraulic cylinder (44). A limit rod (45) is fixedly connected to the bottom of the push plate (46). A rotating part (461) is fixedly connected to the top of the push plate (46). A lifting plate (43) is rotatably connected to the periphery of the rotating part (461). A rotating plate (41) is rotatably connected to the outer side of the lifting plate (43). A U-shaped plate (42) is rotatably connected to the top of the outer side of the rotating plate (41). A slider (48) is fixedly connected to the top of the U-shaped plate (42). A rotating disk (401) is slidably connected to the periphery of the slider (48). An arc-shaped clamping plate (49) is fixedly connected to the top of the slider (48).

2. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 1, characterized in that: There are two limiting rods (45), which are fixedly connected to the left and right sides of the bottom of the push plate (46) respectively, and the two limiting rods (45) are slidably connected to the inside of the support frame (47).

3. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 1, characterized in that: The inner side of the lifting plate (43) is provided with a circular groove corresponding to the movement trajectory of the rotating component (461), and the rotating component (461) is rotatably connected to the inside of the circular groove.

4. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 1, characterized in that: The inner side of the rotating disk (401) is provided with a moving groove corresponding to the movement trajectory of the slider (48), and the slider (48) is slidably connected inside the moving groove.

5. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 1, characterized in that: The arc-shaped clamp (49) is disposed around the gear body (6), and the inner side of the arc-shaped clamp (49) is in contact with the outer side of the gear body (6).

6. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 1, characterized in that: The rotating mechanism (7) includes a connecting frame (73), which is fixedly connected to the top of the fixed platform (5). A servo motor (71) is fixedly connected to the top of the connecting frame (73), and a rotating shaft (72) is fixedly connected to the bottom of the servo motor (71). A drive gear (74) is fixedly connected to the periphery of the rotating shaft (72). A rotating gear (75) meshes with the left side of the drive gear (74), and the rotating gear (75) is fixedly connected to the periphery of the rotating disk (401).

7. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 6, characterized in that: The fixed platform (5) has a rotating groove on its inner side that corresponds to the movement trajectory of the rotating gear (75), and the rotating gear (75) is rotatably connected to the inside of the rotating groove.

8. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 6, characterized in that: The rotating shaft (72) is rotatably connected to the inner side of the connecting frame (73), and the bottom of the rotating shaft (72) is rotatably connected to the top of the fixed platform (5).

9. The rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 1, characterized in that: The pushing mechanism (8) includes a fixed plate (82), which is fixedly connected to the outside of the support cylinder (3). A second hydraulic cylinder (81) is fixedly connected to the bottom of the fixed plate (82). The top of the second hydraulic cylinder (81) is fixedly connected to the bottom of the fixed platform (5). A sliding bar (83) is fixedly connected to the bottom of the fixed platform (5).

10. A rapid and stable clamping device for machining heavy-duty ultra-large wind turbine gears according to claim 9, characterized in that: The inner side of the support cylinder (3) is provided with a guide groove corresponding to the movement trajectory of the sliding bar (83), and the sliding bar (83) is slidably connected inside the guide groove.