CN110524026B - Tool and method for machining threaded holes of motor holes on inner side of wind power hub - Google Patents
Tool and method for machining threaded holes of motor holes on inner side of wind power hub Download PDFInfo
- Publication number
- CN110524026B CN110524026B CN201910683274.8A CN201910683274A CN110524026B CN 110524026 B CN110524026 B CN 110524026B CN 201910683274 A CN201910683274 A CN 201910683274A CN 110524026 B CN110524026 B CN 110524026B
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- hole
- support
- machining
- cylindrical sleeve
- motor
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- 238000003754 machining Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 10
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a tool and a method for machining a threaded hole of a motor hole on the inner side of a wind power hub, wherein the tool comprises a rotating device and a fixed plate; the rotating device comprises a cylindrical sleeve, a plurality of rollers, a rotating shaft, a cover plate, a support and a fixing plate; the upper part of the cylindrical sleeve is provided with an opening, the center of the inner side of the bottom of the cylindrical sleeve is provided with a cylindrical concave area, the outer side of the bottom of the cylindrical sleeve is provided with a threaded blind hole, the axial surfaces of a plurality of rollers are tangent to each other in pairs and inscribed in the cylindrical sleeve, and the rotating shaft is arranged in a cavity formed by the plurality of rollers and is tangent to the axial surface of each roller; cylindrical bosses are arranged at two ends of the rotating shaft, a round hole is formed in the center of the cover plate, the boss at one end of the rotating shaft is matched with the concave area, and the boss at the other end of the rotating shaft penetrates through the round hole and is fixed with the bottom center of the support by a screw; the cover plate covers and is fixed at the opening of the cylindrical sleeve; the fixing plate is abutted with the threaded blind hole through a screw so that the fixing plate is connected with the cylindrical sleeve. The screw hole position can be positioned fast, and all screw holes can be processed by once dress card, promotes processingquality and stability, reduces processing cost.
Description
Technical Field
The invention belongs to the field of wind power product processing, and particularly relates to a tool and a method for processing a threaded hole of a motor hole on the inner side of a wind power hub.
Background
The devices required for wind power generation are called wind generating sets, and the wind generating sets comprise wind wheels, generators and towers. The hub is the most important structural support piece of the wind wheel and is used for connecting the blades and the main shaft, the variable pitch motor is arranged on the hub and is matched with the blades through a pinion, and the blades can convert different wind power into proper ranges by changing the angles of the blades, so that the rotating speed of the wind wheel is kept constant. The hole for installing the pitch motor is called a motor hole.
The motor hole of the hub is positioned in the inner cavity of the hub, and generally has two layers, one layer is positioned on the outer side and is close to the blade surface for positioning the pitch motor; the second layer is positioned on the inner side, a threaded hole is formed in the motor hole on the inner side, a pitch motor is fixed by using a bolt, and the diameter of the motor hole on the inner side is usually about 20 cm. When the machine tool is used for machining the motor hole, the threaded hole on the inner side motor hole cannot be directly machined, so that in order to ensure that the position of the threaded hole is correct, a lengthened drill bit is usually used for punching the outer side motor hole of the first layer, a threaded bottom hole is machined on the inner side motor hole, and then a bench worker is used for tapping. However, the cutter is longer, the processing period is long, and the conditions of overlarge bottom hole, misplacement and the like are easily caused in the process, so that the processing cost is high and the processing quality is poor.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a tool and a method for machining the threaded holes of the motor holes on the inner side of the wind power hub, which are used for machining the threaded holes of the motor holes on the inner side of the wind power hub, can quickly position the positions of the threaded holes, can machine all the threaded holes by one-time clamping, improve the machining quality and stability, and reduce the machining cost.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a tool for machining a threaded hole of a motor hole on the inner side of a wind power hub comprises a rotating device and a fixed plate;
the rotating device comprises a cylindrical sleeve, a plurality of rollers, a rotating shaft, a cover plate and a support; the upper part of the cylindrical sleeve is provided with an opening, the center of the inner side of the bottom of the cylindrical sleeve is provided with a cylindrical concave area, the outer side of the bottom of the cylindrical sleeve is provided with a threaded blind hole, the axial surfaces of a plurality of rollers are tangent to each other in pairs and inscribed in the cylindrical sleeve, and the rotating shaft is arranged in a cavity formed by the plurality of rollers and is tangent to the axial surface of each roller; cylindrical bosses are arranged at two ends of the rotating shaft, a round hole is formed in the center of the cover plate, the boss at one end of the rotating shaft is matched with the concave area, and the boss at the other end of the rotating shaft penetrates through the round hole and is fixed with the bottom center of the support by a screw; the cover plate covers and is fixed at the opening of the cylindrical sleeve; the fixing plate is abutted with the threaded blind hole through a screw so that the fixing plate is connected with the cylindrical sleeve.
Further, the support is groove-shaped, two through holes are respectively formed in two ends of the support, and the two through holes are rotationally symmetrical with the center of the bottom of the support.
Further, the cross section of the cover plate is circular, and the diameter of the cover plate is larger than the outer diameter of the cylindrical sleeve and smaller than the distance from the through hole to the center of the bottom of the support.
Further, the cross section of the fixing plate is circular, and the diameter of the fixing plate is larger than the outer diameter of the cylindrical sleeve and smaller than the distance from the through hole to the center of the bottom of the support.
The tool for machining the threaded hole of the motor hole on the inner side of the wind power hub further comprises a locating pin, and the locating pin is used for being inserted into the through hole on the support.
A method for machining a threaded hole of a motor hole on the inner side of a wind power hub, comprising the steps of:
step one: machining a first threaded hole, and machining the first threaded hole around a motor hole on the inner side of the wind power hub;
step two: the tool is installed, firstly, a rotating device is assembled on an inner side motor hole 2 from one side, the diameter of the inner side motor hole 2 is matched with the outer diameter of a cylindrical sleeve 3, and then a fixing plate 8 is installed on the other side of the inner side motor hole 2, so that the rotating device is fixed on the inner side motor hole 2; rotating the support 7 to align a through hole on the support 7 with the first machined threaded hole, and inserting a positioning pin 9 to fix the support relatively;
step three: installing a magnetic drill, and installing the magnetic drill on the support;
step four: machining residual threaded holes, adjusting the magnetic drills to enable drill bits to be aligned with the residual three through holes on the support in sequence, and machining three threaded holes around the inner side motor hole; and (3) adjusting the angle position of the support again and fixing the support, and machining a residual threaded hole by using the magnetic drill.
The tool for machining the threaded holes of the motor holes on the inner side of the wind power hub has the characteristics of being simple in structure and convenient to use. The support adopts the groove type, and the magnetic drill base is fixed on the support more stably.
The method for machining the threaded holes of the motor holes on the inner side of the wind power hub is free from additional drilling around the motor holes on the outer side, and after the tool is fixed on the motor holes on the inner side of the wind power hub, all the threaded holes can be machined by only one clamping, so that the machining efficiency is improved, and the machining cost is reduced. Has good universality and practicability.
Drawings
FIG. 1 is a schematic diagram of a common wind-powered hub motor hole;
FIG. 2 is an exploded view of the rotary device of the present invention;
FIG. 3 is a schematic view of a rotary apparatus of the present invention;
FIG. 4 is a schematic illustration of a mounting plate of the present invention;
FIG. 5 is a schematic diagram of the assembly of the rotating device and the positioning plate of the present invention;
FIG. 6 is a schematic diagram of a tooling for machining a threaded hole of a motor hole on the inner side of a wind power hub.
1-an outer motor hole; 2-inside motor holes; 3-sleeve; 4-a cylindrical roller; 5-rotating shaft; 6-cover plate; 7-supporting seats; 8-fixing plates; 9-locating pins; 10-magnetic drill.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The tooling for machining the threaded holes of the motor holes on the inner side of the wind power hub is described below in connection with specific embodiments to further understand the concept of the invention. Referring to fig. 1, a common wind power hub has an outer motor hole 1 and an inner motor hole 2. To mount the fixed pitch motor, a plurality of screw holes need to be machined around the inside motor hole 2.
Referring to fig. 2 to 5 together, the invention provides a tool for machining a threaded hole of a motor hole on the inner side of a wind power hub, which comprises a rotating device and a fixing plate 8. The rotating device consists of a cylindrical sleeve 3, a plurality of rollers 4, a rotating shaft 5, a cover plate 6 and a support 7. The upper part of the cylindrical sleeve 3 is provided with an opening, and the center of the inner side of the bottom is provided with a cylindrical concave area which is used for being matched with the rotating shaft 5; at least one threaded blind hole is formed in the outer side of the bottom of the cylindrical sleeve 3 and used for being connected with the fixing plate 8; the height of the cylindrical sleeve 3 is slightly smaller than the depth of the inner motor hole 2, and the outer diameter of the cylindrical sleeve 3 is slightly smaller than the diameter of the inner motor hole 2, so that the cylindrical sleeve 3 can be just placed in the inner motor hole 2. The rollers 4 are cylindrical, the axial surfaces of the rollers 4 are tangent to each other in pairs and are inscribed in the cylindrical sleeve 3, a cavity is formed in the middle, and the rotating shaft 5 is arranged in the cavity formed by the rollers 4 and is tangent to the axial surfaces of the rollers 4. The cover plate 6 is a circular plate with a circular hole in the middle, and covers and is fixed at the opening of the cylindrical sleeve 3, and a welding mode can be selected. Two ends of the rotating shaft 5 are respectively provided with a cylindrical boss, wherein the boss at one end can fill the concave area at the bottom of the cylindrical sleeve 3; the boss at the other end is provided with a threaded hole, and the round hole penetrating through the middle of the cover plate 6 is fixed with the bottom center of the support 7 by a screw. The fixing plate 8 is also provided with a threaded hole, and the threaded hole at the bottom of the cylindrical sleeve 3 is connected with a screw in a butt joint way.
In a specific embodiment, the support 7 is of the slot type and magnetic, and is provided with two through holes at each end and is rotationally symmetrical about the centre of the bottom of the support 7. The through hole positional relationship corresponds to the positional relationship in which the threaded holes need to be machined around the inside motor hole 2. In order not to interfere with the machining of the threaded holes around the inside motor hole 2, the diameter of the cover plate 6 is greater than the outer diameter of the cylindrical sleeve 3 and less than the distance from the through hole on the support 7 to the bottom center; the fixing plate 8 is designed to be circular, with a diameter greater than the outer diameter of the cylindrical sleeve 3 and less than the through-hole to bottom center distance on the support 7.
Referring to fig. 6, the tooling for machining the threaded hole of the motor hole on the inner side of the wind power hub further comprises a positioning pin 9, wherein the positioning pin is composed of two sections of coaxial different-diameter cylinders and is used for being inserted into the through hole on the support 7, and one end of the positioning pin 9 with the small diameter can be inserted into the through hole on the support 7.
With continued reference to fig. 6, a method for machining a threaded hole of a motor hole inside a wind power hub includes the steps of:
step one: machining a first threaded hole, and machining the first threaded hole around the motor hole 2 on the inner side of the wind power hub;
step two: the tool is installed, firstly, a rotating device is assembled on an inner side motor hole 2 from one side, the diameter of the inner side motor hole 2 is matched with the outer diameter of a cylindrical sleeve 3, and then a fixing plate 8 is installed on the other side of the inner side motor hole 2, so that the rotating device is fixed on the inner side motor hole 2; rotating the support 7 to align a through hole of the support 7 with the first machined threaded hole, and inserting a positioning pin 9 to fix the support 7 relatively;
step three: installing a magnetic drill 10, and adsorbing the magnetic drill 10 on the support 7;
step four: and (3) machining residual threaded holes, adjusting the magnetic drill 10 to enable the drill bit to be sequentially aligned with the residual three through holes on the support 7 and extend into the support to be machined, and machining three threaded holes around the inner motor hole 2. Then the bolts on the fixing plate 8 are loosened, the angle position of the support 7 is adjusted again and fixed, and the rest threaded holes are machined by the magnetic drills 10.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. A tool for machining a threaded hole of a motor hole on the inner side of a wind power hub is characterized in that,
comprises a rotating device, a fixed plate and a positioning pin;
the rotating device consists of a cylindrical sleeve, a plurality of rollers, a rotating shaft, a cover plate and a support; the upper part of the cylindrical sleeve is provided with an opening, the center of the inner side of the bottom of the cylindrical sleeve is provided with a cylindrical concave area, the outer side of the bottom of the cylindrical sleeve is provided with a threaded blind hole, the axial surfaces of a plurality of rollers are tangent to each other in pairs and inscribed in the cylindrical sleeve, and the rotating shaft is arranged in a cavity formed by the plurality of rollers and is tangent to the axial surface of each roller; cylindrical bosses are arranged at two ends of the rotating shaft, a round hole is formed in the center of the cover plate, the boss at one end of the rotating shaft is matched with the concave area, and the boss at the other end of the rotating shaft penetrates through the round hole and is fixed with the bottom center of the support by a screw; the cover plate covers and is fixed at the opening of the cylindrical sleeve; the fixing plate is in butt joint with the threaded blind hole through a screw to be connected with the cylindrical sleeve; two through holes are respectively formed in two ends of the support, and the two through holes are rotationally symmetrical with the center of the bottom of the support; the locating pin is used for being inserted into the through hole on the support.
2. A tool for machining a threaded hole of a motor hole on the inner side of a wind power hub according to claim 1, wherein,
the support is of a groove shape.
3. A tool for machining a threaded hole of a motor hole on the inner side of a wind power hub according to claim 2, wherein,
the cross section of apron is circular, the diameter of apron is greater than the external diameter of cylindricality sleeve is just less than the through-hole reaches the support bottom center distance.
4. A tool for machining a threaded hole of a motor hole on the inner side of a wind power hub according to claim 2, wherein,
the cross section of fixed plate is circular, the diameter of fixed plate is greater than the external diameter of cylindricality sleeve and is less than the through-hole reaches the support bottom center distance.
5. A method for machining a threaded hole of a motor hole on the inner side of a wind power hub is characterized in that,
the tool for machining the threaded holes of the motor holes on the inner side of the wind power hub according to claim 1 comprises the following steps:
step one: machining a first threaded hole, and machining the first threaded hole around a motor hole on the inner side of the wind power hub;
step two: the tool is installed, the rotating device is firstly assembled on an inner side motor hole from one side, the diameter of the inner side motor hole is matched with the outer diameter of the cylindrical sleeve, and then the fixing plate is installed on the other side of the inner side motor hole, so that the rotating device is fixed on the inner side motor hole; rotating the support to align a through hole on the support with the first machined threaded hole, and inserting the locating pin to enable the support to be relatively fixed;
step three: installing a magnetic drill, and installing the magnetic drill on the support;
step four: machining residual threaded holes, adjusting the magnetic drills to enable drill bits to be aligned with the residual three through holes on the support in sequence, and machining three threaded holes around the inner side motor hole; and (3) adjusting the angle position of the support again and fixing the support, and machining a residual threaded hole by using the magnetic drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683274.8A CN110524026B (en) | 2019-07-31 | 2019-07-31 | Tool and method for machining threaded holes of motor holes on inner side of wind power hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683274.8A CN110524026B (en) | 2019-07-31 | 2019-07-31 | Tool and method for machining threaded holes of motor holes on inner side of wind power hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110524026A CN110524026A (en) | 2019-12-03 |
| CN110524026B true CN110524026B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910683274.8A Active CN110524026B (en) | 2019-07-31 | 2019-07-31 | Tool and method for machining threaded holes of motor holes on inner side of wind power hub |
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| CN (1) | CN110524026B (en) |
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| CN201824153U (en) * | 2010-10-19 | 2011-05-11 | 天津市天发重型水电设备制造有限公司 | Bolt hole processing tooling for inner water distribution rings of hydraulic generators |
| CN104551087A (en) * | 2014-12-02 | 2015-04-29 | 中国核工业二三建设有限公司 | Tool for assisting drilling of magnetic drill |
| CN205020881U (en) * | 2015-08-24 | 2016-02-10 | 天津思为机器设备有限公司 | Blower fan wheel hub main shaft spot facing work jig |
| CN105665794A (en) * | 2016-04-08 | 2016-06-15 | 宁夏共享模具有限公司 | Machining tool of inclined hole in inner cavity of wind power wheel hub and machining method of machining tool |
| CN206153621U (en) * | 2016-07-13 | 2017-05-10 | 哈尔滨电机厂有限责任公司 | Ring packing groove processing appurtenance |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7396194B2 (en) * | 2006-02-13 | 2008-07-08 | Washington Suburban Sanitary Commission | Adjustable clamping arrangement for magnetic mounting plate |
| US20110131781A1 (en) * | 2009-12-31 | 2011-06-09 | Alistair Jeffrey Smith | Systems and methods for assembling a bore repair assembly for use in a wind turbine |
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2019
- 2019-07-31 CN CN201910683274.8A patent/CN110524026B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201824153U (en) * | 2010-10-19 | 2011-05-11 | 天津市天发重型水电设备制造有限公司 | Bolt hole processing tooling for inner water distribution rings of hydraulic generators |
| CN104551087A (en) * | 2014-12-02 | 2015-04-29 | 中国核工业二三建设有限公司 | Tool for assisting drilling of magnetic drill |
| CN205020881U (en) * | 2015-08-24 | 2016-02-10 | 天津思为机器设备有限公司 | Blower fan wheel hub main shaft spot facing work jig |
| CN105665794A (en) * | 2016-04-08 | 2016-06-15 | 宁夏共享模具有限公司 | Machining tool of inclined hole in inner cavity of wind power wheel hub and machining method of machining tool |
| CN206153621U (en) * | 2016-07-13 | 2017-05-10 | 哈尔滨电机厂有限责任公司 | Ring packing groove processing appurtenance |
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| CN110524026A (en) | 2019-12-03 |
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Effective date of registration: 20240125 Address after: 750021, No. 199 Tongxin South Street, Yinchuan economic and Technological Development Zone, the Ningxia Hui Autonomous Region Applicant after: KOCEL MACHINE CO.,LTD. Country or region after: China Address before: 298, ningshuo South Street, Yinchuan economic and Technological Development Zone, Ningxia Hui Autonomous Region Applicant before: KOCEL INTELLIGENT EQUIPMENT Co.,Ltd. Country or region before: China |
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