CN223235739U - Auxiliary fixture for machining end face threaded holes of long head inner hole of planet carrier of wind power gear box - Google Patents
Auxiliary fixture for machining end face threaded holes of long head inner hole of planet carrier of wind power gear boxInfo
- Publication number
- CN223235739U CN223235739U CN202422658784.9U CN202422658784U CN223235739U CN 223235739 U CN223235739 U CN 223235739U CN 202422658784 U CN202422658784 U CN 202422658784U CN 223235739 U CN223235739 U CN 223235739U
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- China
- Prior art keywords
- planet carrier
- long head
- inner hole
- threaded holes
- flange
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Abstract
The utility model provides an auxiliary tool for machining a threaded hole of an inner hole end surface of a long head of a planet carrier of a wind power gear box, which is characterized in that the auxiliary tool is of a flange structure, a plurality of axial through holes are formed in a flange plate, the positions and the size parameters of the through holes are determined according to the positions and the sizes of the threaded holes of the bottom end surface of the inner hole end surface of the long head of the planet carrier to be machined, the positions and the sizes correspond to those of the threaded holes of the bottom end surface of the inner hole of the long head of the planet carrier, the long head side of the planet carrier faces upwards and the short head side of the planet carrier faces downwards and is vertically placed on a drilling machine workbench, a flange shaft of the tool is inserted into a bottom surface center hole formed in the bottom end surface of the inner hole of the long head of the planet carrier, the lower plane of the flange plate is erected on the bottom end surface of the inner hole of the long head of the planet carrier, the lower plane of the flange plate is in direct abutting contact with the bottom surface of the inner hole end surface of the long head of the planet carrier, and a tool bolt is screwed into and penetrates through the threaded holes of the flange shaft of the tool. The utility model saves the processing cost and improves the processing efficiency.
Description
Technical Field
The utility model relates to the field of tools, in particular to an auxiliary tool for machining a threaded hole on the end face of an inner hole of a long head of a planet carrier of a wind power gear box.
Background
Wind power generation has been rapidly developed in recent years due to the advantages of no pollution, low construction cost, and the like. The machining efficiency of parts inside the gear box plays a vital role. The gear transmission in the gear box is mainly divided into parallel stage gear transmission and planetary stage gear transmission. Wherein the planet carrier is one of the main components of the planetary gear, the planet axle or bearing is mounted on the planet carrier. The planet carrier can be used for various processing tools in the processing process.
At present, when a threaded hole of the end face of an inner hole of a long head of a planet carrier is machined on a machining center, a tool is needed to be used for clamping and fixing whether the machining center is placed on the vertical machining center or the horizontal machining center.
The technical scheme in the first prior art is as follows:
When the threaded hole of the inner hole end face of the long head of the planet carrier is machined on the vertical machining center, the large end face of the short head side of the planet carrier is supported by means of heightening of the equal-height blocks. And the end face of the inner cavity of the short head side of the planet carrier is tightly pressed by the pressing plate, and after the clamping is firmly fixed, the processing can be performed after the position of a workpiece is aligned by a machine tool in order to ensure the relative position of the threaded hole of the end face of the inner hole of the long head of the planet carrier.
Drawbacks of the first prior art:
1. the method has the advantages that the planetary carriers of different types are processed, due to the fact that the heights of the short head side shaft diameters of the planetary carriers are inconsistent, equal-height cushion blocks or T-shaped bolts with different heights need to be manufactured in advance, universality is low, and processing cost is high;
2. The position of the workpiece needs to be aligned again when the screw hole on the end face of the inner hole of the long head of the planet carrier is machined on the vertical machining center, so that the time consumption is long;
3. The machining cost of the vertical machining center equipment is high, so that the machining cost of parts is high.
The technical scheme of the second prior art is as follows:
When the threaded holes of the inner hole end surfaces of the long head of the planet carrier are machined in the horizontal machining center, the two V-shaped irons are used for supporting the excircles of the large end surfaces of the long head side and the short head side of the planet carrier, the jack is used for supporting the shaft diameter of the long head side of the planet carrier, the pressing plate is used for pressing the rib plate at the position of the gear opening surface of the planet carrier, and after the clamping is fixed firmly, the machining can be performed after the position of a workpiece is aligned through a machine tool in order to ensure the relative position of the threaded holes of the inner hole end surfaces of the long head of the planet carrier.
Drawbacks of the second prior art:
1. Processing planetary carriers of different types, because the sizes of the large outer circle of the planetary carrier and the shaft diameter of the long head side are inconsistent, various equal-height cushion blocks or V-shaped irons with different heights need to be manufactured in advance, the universality is not strong, and the processing cost is high;
2. The position of the workpiece needs to be aligned again when the screw hole on the end face of the inner hole of the long head of the planet carrier is machined in the horizontal machining center, so that the time is long;
3. The machining cost of the horizontal machining center equipment is high, so that the machining cost of parts is high.
Disclosure of utility model
The utility model provides an auxiliary tool for machining a threaded hole on the end face of an inner hole of a long head of a planet carrier of a wind power gear box, which aims to solve the defects of the prior art, save the machining cost, improve the machining efficiency, and is simple to use and convenient to disassemble and assemble.
The technical scheme adopted for solving the technical problems is as follows:
Auxiliary fixtures that wind-powered electricity generation gear box planet carrier long head hole terminal surface screw hole processing was used, its characterized in that:
The auxiliary tool is of a flange structure comprising a flange plate and a flange shaft, a plurality of axial through holes are formed in the flange plate, the positions and the size parameters of the through holes are determined according to the positions and the sizes of threaded holes of the bottom end face of the long head inner hole of the planet carrier to be processed, and the positions and the sizes correspond to the threaded holes of the bottom end face of the long head inner hole of the planet carrier;
The flange shaft of the tool is inserted into a central hole formed in the bottom end face of the long head inner hole of the planet carrier, the lower plane of the flange plate is erected on the bottom end face of the long head inner hole of the planet carrier, and the lower plane of the flange plate is directly propped against and contacted with the bottom end face of the long head inner hole of the planet carrier;
Two threaded holes are formed in the flange shaft of the tool, tool bolts are screwed into and penetrate through the threaded holes, and the tail end parts of the tool bolts are tightly contacted with the inner wall of the bottom surface center hole of the planet carrier.
The flange shaft is in clearance fit with the central hole of the bottom surface.
The height of the flange shaft is greater than half the axial length of the bottom surface center hole.
Two transverse threaded holes on the flange shaft are symmetrically distributed.
The utility model has the advantages that:
1) The machining of the screw hole on the end face of the inner hole of the long head of the planet carrier directly uses an independent auxiliary tool, the contour block is not needed to be used for heightening, and the tool cost is effectively saved;
2) The auxiliary tool for machining the end face screw holes of the inner hole of the long head of the planet carrier can be used without aligning the circle center of the workpiece, so that the time for correcting the workpiece is saved, and the machining efficiency is effectively improved;
3) The auxiliary tool for machining the end face threaded holes of the long-head inner hole of the planet carrier can be used for machining on a common drilling machine, the relative positions between the end face threaded holes of the long-head inner hole of the planet carrier can be effectively guaranteed, machining on a machining center is not needed, and machining cost is effectively reduced.
4) The tool is in contact with the bottom surface center hole of the long head inner hole of the planet carrier through two uniformly distributed tool bolts arranged at the tool flange shaft, and the extending length of the bolts is controlled by tightening the bolts, so that the tool can be suitable for center holes with different inner diameters. Therefore, the tool is higher in universality.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an installation position of an auxiliary tool of the utility model;
FIG. 2 is a top view of the auxiliary tool of the present utility model;
Fig. 3 is a cross-sectional view of an auxiliary tool of the present utility model.
Detailed Description
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art. In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, 2 and 3:
The planet carrier 2 is placed on the workbench 1 of the drilling machine for processing. The planet carrier 2 is vertically arranged above the workbench 1 of the drilling machine with the long head side upwards and the short head side downwards
The tooling 3 is of an integral flange structure and is provided with a flange plate 31 and a flange shaft 32.
The lower plane of the flange plate 31 of the tool 3 is erected on the bottom end surface 22 of the long-head inner hole 21 of the planet carrier 2, the lower plane of the flange plate 31 is directly propped against and contacted with the bottom end surface 22 of the long-head inner hole 21 of the planet carrier 2, the flange shaft 32 of the tool 3 needs to be inserted into the bottom surface center hole 23 of the long-head inner hole 22 of the planet carrier 2, a certain gap is reserved between the shaft diameter 32 of the tool 3 and the inner wall of the bottom surface center hole 23, two symmetrically distributed transverse threaded holes 34 are formed in the flange shaft 32 of the tool 3, the tool bolts 4 are screwed in and penetrate through the threaded holes 34, and the extending length of the tool bolts 4 is controlled by screwing the tool bolts 4, so that the tail ends of the tool bolts 4 are tightly contacted with the inner wall of the bottom surface center hole 23 of the planet carrier 2 at the most suitable position and form fixation.
The number of the axial through holes 33 in fig. 2 is 6, and is determined according to the number of 6 threaded holes of the bottom end surface 22 of the long head inner hole 21 to be processed, and the through holes 33 can be formed according to the specific situation.
The radial distance A 1 between the center point of the connecting line of the circle centers of the two independent adjacent through holes 33 and the circle center, the diameter A 2 of the two independent adjacent through holes 33, the circle center distance A 3 of the two independent adjacent through holes 33, the diameters A 4 of the four circumferentially uniformly distributed through holes 33, and the diameter A 5 of the circle where the circle centers of the circumferentially uniformly distributed through holes 33 are located, and all the data correspond to the corresponding position and size data of the threaded holes of the bottom end surface 22 of the long-head inner hole 21 to be processed.
In fig. 3, the diameter B 1 of the flange 31, the diameter B 2 of the flange shaft 32, the wall thickness B 3 of the flange shaft 32, the height B 4 of the flange shaft 32, and the thickness B 5 of the flange 31 are determined according to the size of the bottom surface center hole 23 formed at the bottom end of the bottom end surface 22 of the long head inner hole 21.
The diameter B 1 of the flange 31 needs to be determined according to the diameter a 5 of the circle where the centers of the circumferentially-uniformly distributed through holes 33 are located in fig. 2, that is, the diameter B 1 of the flange 31 needs to be larger than the diameter a 5 of the circle where the centers of the circumferentially-uniformly distributed through holes 33 are located, so that the through holes 33 can be formed on the flange 31.
The diameter B 2 of the flange shaft 32 is required to be determined according to the diameter of the bottom surface center hole 23 in fig. 1, and the flange shaft 32 is in small clearance fit with the bottom surface center hole 23 after being inserted into the bottom surface center hole 23, because the fixture 3 is fixed by contacting the fixture bolt 4 with the inner wall of the bottom surface center hole 23.
The dimensions of the wall thickness B 3 of the flange shaft 32 and the thickness B 5 of the flange 31 can be adjusted according to the strength to be achieved by the tool.
The height B 4 of the flange shaft 32 is determined by the axial dimension of the floor central bore 23, and it is necessary to ensure that the height B 4 of the flange shaft 32 is greater than half the axial length of the floor central bore 23 to ensure stability of installation.
The existing machining mode of the threaded hole at the end face of the inner hole of the long head of the planet carrier is to machine the threaded hole at a vertical machining center or a horizontal machining center. And calculating the coordinate value of the spindle of the machine tool to be moved in advance according to the position of the threaded hole at the end face of the inner hole of the long head of the planet carrier, and ensuring the machining precision of the machine tool. And a special tool is required to be used for clamping and fixing before machining. In order to ensure the position of the threaded hole at the end face of the inner hole of the long head of the planet carrier, the workpiece needs to be corrected before machining, and the machining efficiency of the mode is often low.
The tool is directly an integral flange sleeve type tool, the tool 3 and the flange shaft 32 can be directly inserted into the bottom surface center hole 23 of the long head inner hole 22 of the planet carrier 2, the tool bolt 4 is screwed into and penetrates through the threaded hole 34 of the flange shaft 32, the tail end part of the tool bolt 4 is fixed with the inner wall of the bottom surface center hole 23 of the planet carrier 2, the lower plane of the flange 31 of the tool 3 is directly contacted with the bottom surface 22 of the long head inner hole 21 of the planet carrier 2, the through hole 33 on the flange 31 is processed in advance according to the relative position of the threaded hole on the bottom surface 22 of the long head inner hole 21 of the planet carrier 2, and the threaded hole is directly processed by using a drilling machine to align the position of the through hole 33 on the flange 31, so that the position of the threaded hole on the bottom surface 22 of the long head inner hole 21 of the planet carrier 2 can be ensured.
The fixture 3 is fixed by contacting the fixture bolt 4 with the inner wall of the bottom surface center hole 23. Therefore, the tool 3 is fixedly connected with the planet carrier 2, and when the threaded hole is machined, the tool 3 cannot shake, so that the machining precision of the threaded hole is guaranteed.
The tooling 3 is versatile in that each production of the planet carrier 2 is produced in a large number of batches rather than a single design.
The tool provided by the utility model has the advantages that:
The tool provided by the utility model has the advantages that:
1. the tool is simple in structure and easy to process and manufacture;
2. The machining is finished only on a common drilling machine without a machining center, so that the machining cost is saved;
3. The disassembly and assembly are convenient, and other workpiece clamping tools are not needed;
4. The relative position of the threaded hole can be guaranteed without correcting the workpiece before machining, and machining efficiency is improved.
5. Two bolts which are arranged on the shaft diameter of the tool in advance are fixed after contacting with the bottom surface center hole of the long head inner hole, and the bolts have a certain telescopic range and can be used on planetary carriers of different types.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended 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 (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422658784.9U CN223235739U (en) | 2024-11-01 | 2024-11-01 | Auxiliary fixture for machining end face threaded holes of long head inner hole of planet carrier of wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422658784.9U CN223235739U (en) | 2024-11-01 | 2024-11-01 | Auxiliary fixture for machining end face threaded holes of long head inner hole of planet carrier of wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223235739U true CN223235739U (en) | 2025-08-19 |
Family
ID=96728849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422658784.9U Active CN223235739U (en) | 2024-11-01 | 2024-11-01 | Auxiliary fixture for machining end face threaded holes of long head inner hole of planet carrier of wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223235739U (en) |
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2024
- 2024-11-01 CN CN202422658784.9U patent/CN223235739U/en active Active
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