Special three-jaw clamp for wind power gear

Abstract

The special three-jaw clamp for the wind power gear comprises a base, a rotating plate, a worm gear, a worm and a plurality of sliding frames, a plurality of sliding grooves are formed in the top of the base, a mounting hole is formed in the bottom of the base, the mounting hole is communicated with the sliding grooves respectively, the rotating plate is rotationally arranged in the mounting hole, a plurality of driving grooves are formed in the top of the rotating plate, and the worm gear is arranged in the driving grooves. The worm gear is fixedly arranged at the bottom of the rotating plate and meshed with the worm. The sliding frames are pushed to move at the same time through cooperation of the driving grooves and the sliding grooves of the rotating plate, and it is guaranteed that the clamping force of the sliding frames to the gears is the same. Through cooperation of a worm gear and a worm, the rotating plate can be driven to rotate, and the situation that the rotating plate rotates reversely, and consequently gear loosening influences the machining precision can be avoided; the adjusting rod and the clamping block are arranged on the sliding frame, the gear is clamped and fixed through matching of the clamping block and the teeth on the gear, and damage to the teeth on the gear caused by mismatching of the clamping jaw of the clamp and the gear is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of gear clamps, in particular to a special three-claw clamp for wind power gears. Background Art

[0002] The gearbox in a wind turbine is an important mechanical component. Its main function is to transfer the power generated by the wind rotor to the generator and make it rotate at a corresponding speed. For the gear, the inner hole wall of the gear is used to directly contact the bearing roller or the outer ring of the bearing. When the inner hole wall of the gear is in direct contact with the bearing roller, there is a risk of wear, pitting and peeling of the inner hole wall of the gear, thereby reducing the service life of the gearbox.

[0003] At present, the gears used in wind power equipment need to be fixed with a three-jaw clamp during production and processing. The existing three-jaw clamp usually consists of a cylindrical base, three jaws and a driving screw. There is a slide groove on the base, and the three jaws can slide in the slide groove; the driving screw is connected to the corresponding jaws, and the jaws are driven to move by rotating the screw, so as to clamp or loosen the workpiece. However, when clamping the workpiece, the three jaws of this structure need to be driven separately by the driving screw, and the three jaws cannot be driven to move at the same time, which is troublesome to operate and inefficient; and the existing three-jaw clamp is directly clamped on the teeth of the gear. Since the jaws of the clamp do not match the teeth of the gear, if the clamping force of the three jaws is too large, the teeth of the gear will be damaged. If the clamping force of the three jaws is insufficient, the workpiece is prone to axial deviation, which in turn affects the processing accuracy and causes the entire gear to be scrapped.

[0004] Therefore, we need to design a special three-jaw clamp for wind turbine gears to solve these problems. Utility Model Content

[0005] The problem to be solved by the utility model is to provide a special three-claw clamp for wind power gears, which is particularly suitable for clamping and fixing different gears without causing damage to the teeth of the gears.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A special three-jaw clamp for wind power gears comprises a base, a rotating plate, a worm wheel, a worm and several sliding frames, wherein the top of the base is provided with several slide grooves, and the bottom is provided with mounting holes, the mounting holes are respectively connected with the several slide grooves, the rotating plate is rotatably arranged in the mounting holes, a plurality of driving grooves are arranged on the top of the rotating plate, the worm wheel is fixedly arranged at the bottom of the rotating plate, the worm is meshed with the worm wheel, and the two ends of the worm are respectively rotatably connected with the inner walls of the mounting holes, the sliding frame is slidably installed in the slide groove, and a driving block is fixedly arranged at the bottom of the sliding frame, and the driving block is located in the driving groove.

[0008] Preferably, the sliding frame is L-shaped, and a mounting hole is provided on the vertical rod of the sliding frame, an adjusting rod is inserted into the mounting hole, and a clamping block is rotatably provided on one end of the adjusting rod.

[0009] Furthermore, the bottom of the sliding frame is provided with a plurality of fixing holes, and the driving block is detachably mounted on the bottom of the sliding frame through the fixing holes.

[0010] With such arrangement, gears of different sizes can be clamped and fixed by adjusting the position of the driving block and the installation direction of the sliding frame.

[0011] Preferably, the number of the slide grooves is at least three, and the three slide grooves are radially distributed on the top of the base with the center point of the top surface of the base as the starting point, and the angles between adjacent slide grooves are the same.

[0012] With such arrangement, the sliding frame installed through three slide grooves can realize centering clamping and realize the positioning of the gear.

[0013] Preferably, the number of the driving grooves is the same as the number of the sliding grooves.

[0014] With such an arrangement, the sliding frames can be driven to move in a one-to-one correspondence, ensuring that the clamping force of each sliding frame is the same.

[0015] Preferably, a limiting strip is fixedly provided on the inner wall of the slide groove, a limiting groove is provided on the sliding frame, and the limiting groove matches the limiting strip.

[0016] Such an arrangement can limit the position of the sliding frame and prevent the sliding frame from falling from the sliding groove.

[0017] The advantages and positive effects of the utility model are:

[0018] The utility model provides a driving groove on the rotating plate, utilizes the mutual cooperation of the driving groove and the slide groove to push the driving block to drive the sliding frame to slide along the slide groove, realizes the simultaneous movement of the sliding frames, and can ensure that each sliding frame has the same clamping force on the gear; through the cooperation of the worm wheel and the worm, not only can the rotating plate be driven to rotate, but also the reversal of the rotating plate can be avoided, which causes the gear to loosen and affect the processing accuracy; an adjusting rod is provided on the sliding frame, and a rotatable clamping block is provided at the end of the adjusting rod, and the gear is clamped and fixed by the cooperation of the clamping block and the teeth on the gear, thereby avoiding damage to the teeth on the gear caused by the mismatch between the clamp jaws and the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the installation position of the worm wheel and the worm after assembly of the utility model;

[0022] Figure 3 It is a schematic diagram of the installation position of the drive block at the bottom of the sliding frame of the utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the sliding frame when clamping a large-diameter gear of the utility model;

[0024] Figure 5 It is a schematic diagram of the installation structure of the sliding frame when clamping a small-diameter gear of the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Base; 2. Slide groove; 3. Rotating plate; 4. Driving groove; 5. Worm gear; 6. Worm; 7. Sliding frame; 8. Adjusting rod; 9. Block; 10. Driving block; 11. Mounting hole; 12. Fixing hole; 13. Adjusting hole; 14. Limiting groove; 15. Gear; 16. Limiting strip. DETAILED DESCRIPTION

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The utility model is further described below in conjunction with the accompanying drawings:

[0030] Example 1: Figure 1-Figure 5 As shown, a special three-jaw clamp for wind power gears includes a base 1, a rotating plate 3, a worm wheel 5, a worm 6 and a plurality of sliding frames 7. A plurality of slide grooves 2 are opened on the top of the base 1, and mounting holes 11 are arranged at the bottom. The mounting holes 11 are respectively connected with the plurality of slide grooves 2. The rotating plate 3 is rotatably arranged in the mounting holes 11. A plurality of driving grooves 4 are arranged at the top of the rotating plate 3. The worm wheel 5 is fixedly arranged at the bottom of the rotating plate 3. The worm 6 is meshed with the worm wheel 5, and the two ends of the worm 6 are respectively rotatably connected with the inner wall of the mounting hole 11. The sliding frame 7 is slidably installed in the slide groove 2, and a driving block 10 is fixedly arranged at the bottom of the sliding frame 7. The driving block 10 is located in the driving groove 4.

[0031] Preferably, the sliding frame 7 is L-shaped, and a mounting hole 11 is penetrated on the vertical rod of the sliding frame 7, an adjusting rod 8 is inserted into the mounting hole 11, a clamping block 9 is rotatably provided at one end of the adjusting rod 8, and a plurality of fixing holes 12 are provided at the bottom of the sliding frame 7, and the driving block 10 is detachably mounted on the bottom of the sliding frame 7 through the fixing holes 12. Such a setting can realize the clamping and fixing of gears 15 of different sizes by adjusting the position of the driving block 10 and the installation direction of the sliding frame 7.

[0032] Preferably, the number of the slide grooves 2 is at least three, and the three slide grooves 2 are radially distributed on the top of the base 1 with the center point of the top surface of the base 1 as the starting point, and the angles between adjacent slide grooves 2 are the same. Such an arrangement can use the sliding frame 7 installed in the three slide grooves 2 to center and clamp the gear 15, thereby achieving the positioning of the clamping of the gear 15.

[0033] Preferably, the number of the driving grooves 4 is the same as that of the slide grooves 2. Such an arrangement enables the driving grooves 4 to correspond one-to-one with the slide grooves 2, thereby driving the sliding frame 7 to move, ensuring that the clamping force of each sliding frame 7 is the same.

[0034] Preferably, a limit strip 16 is fixedly provided on the inner wall of the slide groove 2, a limit groove 14 is provided on the sliding frame 7, and the limit groove 14 matches the limit strip 16, so that the sliding frame 7 can be limited to prevent the sliding frame 7 from falling from the slide groove 2.

[0035] The working process of this embodiment:

[0036] When in use, first adjust the installation position of the drive block 10 at the bottom of the sliding frame 7 according to the size of the clamped gear 15, and then select Figure 4 or 5, wherein the sliding frame 7 is installed by using Figure 4 When installed in this way, the large diameter gear 15 can be clamped, using Figure 5 When the sliding frame 7 is installed in this way, the small diameter gear 15 can be clamped. When the sliding frame 7 is installed, it is necessary to ensure that the driving block 10 is located in the driving groove 4. After the sliding frame 7 is installed, the gear 15 is placed on the base 1, and then the worm 6 is rotated through the adjusting hole 13, so that the worm 6 drives the worm wheel 5 to rotate. When the worm wheel 5 rotates, it can drive the rotating plate 3 to rotate. After the rotating plate 3 rotates, it will push the driving block 10 through the angle change between the driving groove 4 and the slide groove 2 to drive the sliding frame 7 to slide in the slide groove 2, so as to adjust the position of the sliding frame 7, so that the sliding frame 7 can clamp and fix the gear 15, and the clamping block 9 matched with the teeth of the gear 15 installed at the end of the adjusting rod 8 on the sliding frame 7 is used to clamp and fix the gear 15, and the clamping block 9 can rotate relative to the adjusting rod 8, so it can be used as shown in the figure. Figure 4 The helical gear 15 or Figure 5 The spur gear 15 in the middle is matched.

[0037] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A special three-jaw clamp for wind turbine gears, characterized by: The invention comprises a base (1), a rotating plate (3), a worm wheel (5), a worm (6) and a plurality of sliding frames (7). The top of the base (1) is provided with a plurality of sliding grooves (2), and the bottom is provided with mounting holes (11), and the mounting holes (11) are respectively connected with the plurality of sliding grooves (2). The rotating plate (3) is rotatably arranged in the mounting holes (11), and a plurality of driving grooves (4) are arranged on the top of the rotating plate (3). The worm wheel (5) is fixedly arranged at the bottom of the rotating plate (3), and the worm (6) is meshed with the worm wheel (5), and the two ends of the worm (6) are respectively rotatably connected with the inner wall of the mounting hole (11), and the sliding frame (7) is slidably installed in the sliding groove (2), and a driving block (10) is fixedly arranged at the bottom of the sliding frame (7), and the driving block (10) is located in the driving groove (4).

2. A special three-jaw clamp for wind turbine gear according to claim 1, characterized in that: The sliding frame (7) is L-shaped, and a mounting hole (11) is provided through the vertical rod of the sliding frame (7), an adjusting rod (8) is inserted through the mounting hole (11), and a clamping block (9) is rotatably provided at one end of the adjusting rod (8).

3. A special three-jaw clamp for wind turbine gear according to claim 1, characterized in that: The number of the slide grooves (2) is at least three, and the three slide grooves (2) are radially distributed on the top of the base (1) with the center point of the top surface of the base (1) as the starting point, and the angles between adjacent slide grooves (2) are the same.

4. A special three-jaw clamp for wind turbine gears according to claim 3, characterized in that: The number of the driving grooves (4) is the same as the number of the sliding grooves (2).

5. A special three-jaw clamp for wind turbine gear according to claim 3, characterized in that: A limiting strip (16) is fixedly arranged on the inner wall of the slide groove (2), a limiting groove (14) is provided on the sliding frame (7), and the limiting groove (14) matches the limiting strip (16).

6. A special three-jaw clamp for wind turbine gears according to claim 2, characterized in that: The bottom of the sliding frame (7) is provided with a plurality of fixing holes (12), and the driving block (10) is detachably mounted on the bottom of the sliding frame (7) through the fixing holes (12).

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