Tool for machining distance ring of wind power gear box on horizontal lathe

Abstract

The utility model provides a tool for processing a distance ring of a wind power gear box on a horizontal lathe, which is characterized in that a cover plate is a circular plate with a circular periphery and is provided with three notches uniformly distributed on the circumference, and the notches extend from the periphery to the circle center of the cover plate; more than three nut groups are welded and fixed on the outer circumference of the cover plate; the cover plate is installed on a three-jaw chuck of the horizontal lathe, and three clamping jaws of the three-jaw chuck are inserted into three notches of the cover plate respectively. A plurality of tool bolts are respectively screwed in the nut threads of the nut groups; the distance ring is placed on the end face of the caliper corresponding to the three-jaw chuck, the three-jaw chuck clamps and fixes the outer circle of the distance ring, and the bolt head of the tool bolt makes contact with the rear end face of the distance ring. According to the utility model, the problem that vibration cutter lines exist on the end surface of the distance ring which is thinner and is directly placed on the horizontal lathe is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine gearbox parts processing, specifically to a tooling for processing wind turbine gearbox spacer rings on a horizontal lathe. Background Technology

[0002] Due to its advantages such as being pollution-free and having low construction costs, wind power generation has experienced rapid development in recent years.

[0003] The spacer ring is a crucial mechanical component used in wind turbine gearboxes. It determines the precise position of bearings, gears, and other components, ensuring their correct installation within the gearbox and guaranteeing the relative positional accuracy between parts. This, in turn, ensures smooth and accurate gear transmission. For example, in a planetary gear structure, the spacer ring defines the position of the planetary gear bearings, ensuring proper meshing between the planetary gears and other gears. Furthermore, by selecting spacer rings of different thicknesses or with adjustable structures, the clearances between gears, bearings, and other components can be adjusted to maintain these clearances within a reasonable range, ensuring the gearbox's transmission efficiency and service life. Therefore, many different specifications of spacer rings are used inside gearboxes. These spacer rings vary widely in thickness; some are extremely thin, only a few millimeters thick. Such thin spacer rings are particularly prone to developing chatter marks during machining.

[0004] The technical solution of existing technology 1 is as follows:

[0005] The spacer ring is placed directly onto the horizontal lathe and its end face is precision machined.

[0006] The disadvantages of existing technology 1 are:

[0007] The spacer ring is placed directly onto the three-jaw chuck of the horizontal lathe. The spacer ring is supported by the end face of the three-jaw chuck. When the thickness of the spacer ring is relatively thin, it is particularly easy to deform after being subjected to the cutting tool. Therefore, after the part is machined, it is found that the parts supported by the jaws do not have vibration marks, while the parts without jaw support will have vibration marks. Utility Model Content

[0008] This utility model provides a tooling for machining a wind turbine gearbox spacer ring on a horizontal lathe. Its purpose is to overcome the shortcomings of the prior art and effectively solve the problem of vibration marks on the end face of a relatively thin spacer ring when directly placed on a horizontal lathe for machining.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A tooling for machining a wind turbine gearbox spacer ring on a horizontal lathe, characterized in that:

[0011] The cover plate is a circular plate with a circular outer circumference and three evenly distributed notches around the circumference, which extend from the outer circumference toward the center of the cover plate.

[0012] More than three sets of nuts are welded and fixed on the outer circumference of the cover plate;

[0013] The cover plate is installed on the three-jaw chuck of the horizontal lathe, and the three jaws of the three-jaw chuck are inserted into the three notches of the cover plate respectively.

[0014] Several tooling bolts are respectively screwed into the nut threads of each nut group;

[0015] The spacer ring is placed on the corresponding caliper end face of the three-jaw chuck, and the three-jaw chuck clamps and fixes the outer circle of the spacer ring. The bolt head of the tooling bolt contacts the rear end face of the spacer ring.

[0016] Each nut set consists of two coaxial nuts welded together, with the lower nut welded and fixed to the outer circumference of the cover plate.

[0017] There are 3 sets of nuts, and the 3 sets of nuts are evenly distributed around the circumference, with the nut sets located in the middle of the notches on both sides.

[0018] The jaws and the notch form a clearance fit.

[0019] The advantages of this utility model are:

[0020] 1. The tooling structure is simple, easy to process and manufacture, and the tooling cost is low;

[0021] 2. The fixing method is simple and the workpiece is easy to support. At the same time, it ensures that the spacer ring forms multi-point support, avoiding the presence of tool marks after machining of thin spacer rings on a horizontal lathe.

[0022] 3. The extension length of the tooling bolts used in this tooling is adjustable, so this tooling can be used to process spacer rings of different thicknesses, making it more versatile. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 for Figure 1 The C-direction view;

[0026] Figure 3 A rendering showing the utility model tooling installed on a machine tool chuck.

[0027] Figure 4 This is a schematic diagram of a spacer ring used in a tooling. Detailed Implementation

[0028] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort. To facilitate understanding of this utility model, a more detailed description of this utility model will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0029] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not 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 the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] like Figure 1 , Figure 2 As shown:

[0031] This utility model is a tooling for machining the spacer ring of a wind turbine gearbox on a horizontal lathe.

[0032] The cover plate 1 is a circular plate with a circular outer circumference and three evenly distributed notches 11 on the circumference, which extend from the outer circumference toward the center of the cover plate 1.

[0033] Three sets of nut groups 2 are welded and fixed on the outer circumference of the cover plate 1. Each nut group 2 includes two coaxial nuts welded together. The lower nut is welded and fixed on the outer circumference of the cover plate 1. The two nuts forming the nut group 2 can increase the stability of the bolt 3.

[0034] The three sets of nuts are evenly distributed around the circumference, with the nut set 2 located in the middle of the two notches 11.

[0035] That is:

[0036] The included angle A of the symmetry lines 111 of adjacent gaps 11 is 120°. The so-called symmetry line 111 passes through the axis of the cover plate 1 and divides the gap 11 into two symmetrical parts.

[0037] The line 21 connecting the axis of cover plate 1 to the axis of nut assembly 2 forms an angle B of 60° with the line 111 of symmetry of the adjacent notch 11.

[0038] The width of the notch 11 is the same as the width of the machine tool jaw 91 used in the fixed distance ring 14 of the horizontal lathe. Therefore, the size of the notch 11 of the cover plate 1 needs to be determined according to the width of the jaw 91. After the size is determined, the three circumferentially distributed notches 11 of the cover plate 1 are machined by wire cutting.

[0039] like Figure 3 As shown:

[0040] When using this cover plate 1, it needs to be installed and clipped onto the three-jaw chuck 9 of the horizontal lathe.

[0041] The notch 11 of the cover plate 1 matches the three jaws 91 of the three-jaw chuck 9 of the horizontal lathe. The jaws 91 are inserted into the notch 11 to form a clearance fit.

[0042] Figure 3 The tooling bolt 3 has not yet been screwed into the nut assembly 2.

[0043] like Figure 4 As shown:

[0044] This view mainly describes the working principle of the spacer ring when machining the end face on a horizontal lathe after using this utility model.

[0045] First, the cover plate 1 is put onto the three-jaw chuck 9 of the machine tool, and the three jaws 91 of the three-jaw chuck 9 are inserted into the three notches 11 of the cover plate 1 respectively.

[0046] Then, screw the three tooling bolts 3 into the threads of the three nut groups 2 welded to the outer circumference of the cover plate 1. Place the spacer ring 14 to be machined onto the corresponding caliper end face of the three-jaw chuck 9. Control the three-jaw chuck 9 of the machine tool to clamp and fix the outer circle of the spacer ring 14. Finally, use a wrench to turn the corresponding tooling bolt 3 so that the bolt head of the tooling bolt 3 contacts the rear end face 141 of the spacer ring 14, which provides support and prevents vibration marks from occurring during the machining process. When turning the tooling bolt 3, control the head of the tooling bolt 3 to just contact the rear end face 141 of the spacer ring 14. Remember not to use excessive force, as excessive force will also cause the spacer ring 14 to deform. Then, the cutting tool 15 feeds to machine the front end face 142 of the spacer ring 14, and the rear end face 141 of the spacer ring 14 can also be machined.

[0047] Currently, the spacer rings for wind turbine gearboxes are directly placed onto the face of a horizontal lathe for finish machining. When the spacer ring is directly placed on the caliper end face of the three-jaw chuck on the horizontal lathe for machining, the machine tool generates axial force during the finish machining process. Because the spacer ring is relatively thin, the areas without chuck support experience slight deformation due to the axial force of the tool, resulting in tool marks on the end face of the spacer ring. Since the end face of the spacer ring has flatness requirements, the machining quality of the spacer ring is crucial.

[0048] This fixture uses a single, integrated cover plate with three bolts evenly distributed around its circumference. By adjusting the bolt extension length, the contact between the bolt and the end face of the spacer ring is controlled. This adds three more points of support to the original three, creating a total of six points of contact support. This ensures more even stress distribution on the spacer ring during machining, and even previously unsupported areas are now supported. Therefore, the machined end face using this fixture will not have any vibration marks. Furthermore, the bolt extension length is adjustable, allowing this fixture to be used for machining spacer rings of different thicknesses, thus enhancing its versatility.

[0049] The various embodiments described in this specification are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above description of the disclosed embodiments enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tooling for machining a wind turbine gearbox spacer ring on a horizontal lathe, characterized in that: The cover plate is a circular plate with a circular outer circumference and three evenly distributed notches extending from the outer circumference to the center of the cover plate. More than three sets of nuts are welded and fixed on the outer circumference of the cover plate. The cover plate is installed on a three-jaw chuck of a horizontal lathe, and the three jaws of the three-jaw chuck are respectively inserted into the three notches of the cover plate. Several tooling bolts are screwed into the nut threads of each nut set. The spacer ring is placed on the corresponding caliper end face of the three-jaw chuck, and the three-jaw chuck clamps and fixes the outer circle of the spacer ring. The bolt heads of the tooling bolts contact the rear end face of the spacer ring.

2. The tooling for machining the wind turbine gearbox spacer ring on a horizontal lathe as described in claim 1, characterized in that: Each nut set consists of two coaxial nuts welded together, with the lower nut welded and fixed to the outer circumference of the cover plate.

3. The tooling for machining the wind turbine gearbox spacer ring on a horizontal lathe as described in claim 1, characterized in that: There are 3 sets of nuts, and the 3 sets of nuts are evenly distributed around the circumference, with the nut sets located in the middle of the notches on both sides.

4. The tooling for machining the wind turbine gearbox spacer ring on a horizontal lathe as described in claim 1, characterized in that: The jaws and the notch form a clearance fit.

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