CN113732330A - Boring cutter for solving dislocation of flange at root part of blade on tower - Google Patents

Boring cutter for solving dislocation of flange at root part of blade on tower Download PDF

Info

Publication number
CN113732330A
CN113732330A CN202111028495.5A CN202111028495A CN113732330A CN 113732330 A CN113732330 A CN 113732330A CN 202111028495 A CN202111028495 A CN 202111028495A CN 113732330 A CN113732330 A CN 113732330A
Authority
CN
China
Prior art keywords
blade
bushing
cutter
tower
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111028495.5A
Other languages
Chinese (zh)
Inventor
岳彦山
陶生金
黄西龙
林涛
卜康涛
杨虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guodian United Power Technology Lianyungang Co Ltd
Original Assignee
Guodian United Power Technology Lianyungang Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guodian United Power Technology Lianyungang Co Ltd filed Critical Guodian United Power Technology Lianyungang Co Ltd
Priority to CN202111028495.5A priority Critical patent/CN113732330A/en
Publication of CN113732330A publication Critical patent/CN113732330A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

A boring cutter for solving dislocation of a flange at the root of a blade on a tower comprises a cutter bar, wherein a connector connected with a magnetic drill is arranged at one end of the cutter bar, a bushing is sleeved on the cutter bar, one end of the cutter bar, which is far away from the connector, is arranged as a bushing mounting area, one end of the cutter bar, which is close to the connector, is arranged as a reducing area for limiting the bushing, and a bushing block is arranged between the reducing area and the bushing mounting area; a cutter bar mounting groove is formed in the upper portion of the cutter bar of the bushing mounting area, a cutter head is mounted in the cutter head mounting groove, an internal thread hole is formed in the end portion of the cutter bar of the bushing mounting area, and a fastening bolt is mounted in the internal thread hole. And controlling the magnetic drill to move the boring cutter to the surface of the flange at the root of the blade to be cut and removed, starting the magnetic drill to do work, and driving the boring cutter head to cut the flange at the root of the blade through the rotation of the magnetic rotation. The boring cutter designed by the invention has the characteristics of simple structure, convenience in operation and wide applicability, and can dredge the blade root bolt channel and avoid the situation that the blade falls to the ground and the blade root bolt is replaced.

Description

Boring cutter for solving dislocation of flange at root part of blade on tower
Technical Field
The invention relates to the technical field of wind energy blade manufacturing, in particular to a boring cutter for solving the problem of dislocation of flanges at the root part of a blade on a tower.
Background
With the continuous improvement of the comprehensive utilization ratio of renewable energy sources in various countries in the world, the global wind power generation industry develops at a high speed in recent years, the ratio of the renewable energy sources in the global power production structure rises year by year, and the renewable energy sources have a wide development prospect. In order to obtain more wind fields, wind power generators are usually installed in extreme environments such as mountainous regions and are tested by severe natural conditions. Lightning is one of ten disasters in the nature and also is the biggest natural threat faced by wind generating sets. In recent years, the lightning damage rate of the blades is close to 10-15%, the damage rate of the blades in partial areas and blade manufacturers can reach more than 30% of the damage rate of the areas, and strong lightning current can generate physical damage effects such as resistance heat, arc heat, sound pressure, magnetic pressure and the like, so that irreversible and fatal damage is caused to the wind generating set.
The fan blade is a key component for capturing wind energy of the wind turbine generator, is also a high-frequency component hit by thunder, and is the key point of lightning protection work of the fan. At present, the blade body lightning protection wire is connected with a blade root metal flange plate in the industry, and then a blade lightning protection system is connected with the ground. The lightning protection system has the advantages that the lightning protection system is simple and effective in structure, but has the defect that after the blades are connected to the hub, the condition that the blade root flange plate bolt holes and the blade pitch bearing bolt holes are not concentric easily occurs, and the condition is shown that the blade pitch bearing bolt holes are partially covered by the blade root flange to form flange dislocation, so that the blade root bolt channels are not smooth. If the blade root bolt is damaged in the running process of the fan, the bolt cannot be replaced on the tower due to the fact that the blade root bolt channel is not smooth.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a boring cutter which is simple in structure, convenient to operate and wide in applicability, can realize replacement of a blade root bolt on a tower and solves the problem of dislocation of a flange at the root part of a blade on the tower, wherein the specific scheme is as follows:
the invention relates to a boring cutter for solving the problem of dislocation of flanges at the root part of a blade on a tower, which is characterized in that: the tool comprises a tool bar, wherein a connector connected with a magnetic drill is arranged at one end of the tool bar, a bushing is sleeved on the tool bar, one end of the tool bar, which is far away from the connector, is arranged as a bushing mounting area, one end of the tool bar, which is close to the connector, is arranged as a reducing area for limiting the bushing, a bushing block is arranged between the reducing area and the bushing mounting area, and the bushing block is smoothly connected with the tool bar in the reducing area and the bushing mounting area; open on the cutter arbor upper portion of bush installing zone has the tool bit mounting groove, installs the tool bit in the tool bit mounting groove, and it has the internal thread hole to open at the cutter arbor tip of bush installing zone, and fastening bolt is installed to internal thread hole and tool bit mounting groove intercommunication including threaded.
The technical problem to be solved by the present invention can be further solved by the following technical solution, wherein the bushing is a wear-resistant bushing.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the inner diameter of the bush is 0.1-0.5 mm larger than the outer diameter of the cutter bar at the bush mounting area.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the outer diameter of the bush is 0.1-0.5 mm smaller than the diameter of the variable-pitch bearing hole.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the blocking nominal diameter of the bushing is smaller than the nominal diameter of the hub baffle plate hole.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the hardness of the cutter head is greater than that of the blade flange.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the cutter bar is integrally processed and formed.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the cutter bar is a metal cutter bar with plasticity larger than 40 chromium.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the shortest length of the cutter bar is the distance between the hub plate of the fan and the end surface of the blade.
The technical problem to be solved by the present invention can be further solved by the following technical solution, wherein the bushing is installed at the bushing stopper.
Compared with the prior art, the invention has the beneficial effects that:
1. the boring cutter can penetrate through a hub plate hole and a variable-pitch bearing hole to work for a long distance;
2. the bushing is arranged in the variable-pitch bearing hole, and the cutter bar is stabilized to avoid eccentricity;
3. and removing a blade root flange covering a bolt hole of the variable-pitch bearing on the tower, dredging a blade root bolt channel and avoiding the blade from falling to the ground and replacing a blade root bolt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, refer to fig. 1 and 2, a boring tool for solving the problem of flange dislocation of a root of a blade on a tower comprises a cutter bar 1, wherein a connector 5 connected with a magnetic drill is arranged at one end of the cutter bar 1, a bushing 2 is sleeved on the cutter bar 1, a bushing mounting area 7 is arranged at one end of the cutter bar, which is far away from the connector, a reducing area for limiting a bushing is arranged at one end of the cutter bar, which is close to the connector, a bushing stopper 6 is arranged between the reducing area and the bushing mounting area 7, and the bushing stopper 6 is smoothly connected with the cutter bars of the reducing area and the bushing mounting area 7; open on the cutter arbor upper portion of bush installing zone has tool bit mounting groove 8, installs tool bit 3 in the tool bit mounting groove, and it has internal thread hole 9 to open at the cutter arbor tip of bush installing zone, and internal thread hole 9 and tool bit mounting groove 8 intercommunication are including threaded hole installs fastening bolt 4. The boring cutter is arranged on the magnetic drill and is driven by the magnetic drill to do work; the cutter head 3 is arranged in the cutter head mounting groove 8, the leakage length of the cutter head can be adjusted, and different apertures can be cut; the fastening bolt 4 clamps the cutter head 3 through the internal thread hole 9, so that the leakage length of the cutter head can be adjusted, and different hole diameters can be cut. The invention solves the problems that the bolts can be replaced only by landing the blades, and a large amount of manpower and material resources are needed for maintenance, and realizes the replacement of the bolts at the blade roots on the tower. The bushing stop 6 acts as a stop bushing 2. The boring cutter penetrates through a hub plate hole and a variable-pitch bearing hole to work for a long distance; the bushing is arranged in the variable-pitch bearing hole, and the cutter bar is stabilized to avoid eccentricity; and a blade root flange covering a bolt hole of the variable-pitch bearing is removed from the tower, a blade root bolt channel is dredged, and the blade is prevented from falling to the ground and replacing a blade root bolt.
Embodiment 2, in the boring tool for solving the problem of the flange dislocation of the root of the blade on the tower described in embodiment 1: the bushing is a wear-resistant bushing.
In the boring tool for solving the problem of the dislocation of the flange of the root of the blade on the tower, which is described in the embodiment 3, the embodiment 1 or the embodiment 2: the inner diameter of the bush is 0.1-0.5 mm larger than the outer diameter of the cutter bar at the bush mounting area.
Embodiment 4, in the boring tool for solving the problem of the flange dislocation of the root of the blade on the tower according to any one of embodiments 1 to 3: the outer diameter of the bush is 0.1mm-0.5mm smaller than the diameter of the variable-pitch bearing hole.
Embodiment 5, in the boring tool for solving the problem of the flange dislocation of the root of the blade on the tower described in any one of embodiments 1 to 4: the bushing blocks that the nominal diameter is less than the nominal diameter of the hub baffle hole.
Embodiment 6, the boring tool for solving the problem of the flange dislocation of the root of the blade on the tower according to any one of embodiments 1 to 5: the hardness of the cutter head is greater than that of the blade flange.
Embodiment 7, the boring tool for solving the flange dislocation of the root of the blade on the tower described in any one of embodiments 1 to 6: the cutter bar is integrally processed and formed. The structure of the tool bit comprises a connector 5, a lining block 6, a tool bit mounting groove 8 and a fastening bolt hole 9.
Embodiment 8, the boring tool for solving the flange dislocation of the root of the blade on the tower described in any one of embodiments 1 to 7: the cutter arbor is a metal cutter arbor with plasticity larger than 40 chromium.
Embodiment 9, the boring tool for solving the problem of the flange dislocation of the root of the blade on the tower according to any one of embodiments 1 to 8: the shortest length of the cutter bar is the distance between the hub plate of the fan and the end face of the blade. The length of the cutter bar 1 meets the requirement of completely cutting and removing a blade root flange, and the shortest length is from a hub plate of the fan to the end face of the blade.
Embodiment 10, the boring tool for solving the problem of the flange dislocation of the root of the blade on the tower according to any one of embodiments 1 to 9: the bushing is mounted at a bushing stop.
The working principle of the invention is as follows: the invention provides a boring cutter which is simple in structure, convenient to operate and wide in applicability, and a staggered blade root flange is removed by matching with a magnetic drill for cutting. The boring cutter is connected with the magnetic drill through a connector and penetrates through the hub hole and the bushing installed on the variable-pitch bearing hole. The cutter head is arranged in the cutter head mounting groove on the cutter bar, and the exposed length of the cutter head is adjusted according to the size to be cut. The tool bit is fastened in the tool bit mounting groove by screwing the fixing bolt. And controlling the magnetic drill to move the boring cutter to the surface of the flange at the root of the blade to be cut and removed, starting the magnetic drill to do work, and driving the boring cutter head to cut the flange at the root of the blade through the rotation of the magnetic rotation so as to ensure that the bolt channel at the root of the blade is smooth and meet the installation requirement of the bolt.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept thereof within the scope of the present invention.

Claims (10)

1. The utility model provides a solve boring cutter of blade root flange dislocation on tower which characterized in that: the tool comprises a tool bar, wherein a connector connected with a magnetic drill is arranged at one end of the tool bar, a bushing is sleeved on the tool bar, one end of the tool bar, which is far away from the connector, is arranged as a bushing mounting area, one end of the tool bar, which is close to the connector, is arranged as a reducing area for limiting the bushing, a bushing block is arranged between the reducing area and the bushing mounting area, and the bushing block is smoothly connected with the tool bar in the reducing area and the bushing mounting area; open on the cutter arbor upper portion of bush installing zone has the tool bit mounting groove, installs the tool bit in the tool bit mounting groove, and it has the internal thread hole to open at the cutter arbor tip of bush installing zone, and fastening bolt is installed to internal thread hole and tool bit mounting groove intercommunication including threaded.
2. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the bushing is a wear-resistant bushing.
3. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the inner diameter of the bush is 0.1-0.5 mm larger than the outer diameter of the cutter bar at the bush mounting area.
4. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the outer diameter of the bush is 0.1mm-0.5mm smaller than the diameter of the variable-pitch bearing hole.
5. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the bushing blocks that the nominal diameter is less than the nominal diameter of the hub baffle hole.
6. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the hardness of the cutter head is greater than that of the blade flange.
7. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the cutter bar is integrally processed and formed.
8. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the cutter arbor is a metal cutter arbor with plasticity larger than 40 chromium.
9. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the shortest length of the cutter bar is the distance between the hub plate of the fan and the end face of the blade.
10. The boring tool for solving the problem of the flange dislocation of the root part of the blade on the tower as claimed in claim 1, wherein: the bushing is mounted at a bushing stop.
CN202111028495.5A 2021-09-02 2021-09-02 Boring cutter for solving dislocation of flange at root part of blade on tower Pending CN113732330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111028495.5A CN113732330A (en) 2021-09-02 2021-09-02 Boring cutter for solving dislocation of flange at root part of blade on tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111028495.5A CN113732330A (en) 2021-09-02 2021-09-02 Boring cutter for solving dislocation of flange at root part of blade on tower

Publications (1)

Publication Number Publication Date
CN113732330A true CN113732330A (en) 2021-12-03

Family

ID=78735068

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111028495.5A Pending CN113732330A (en) 2021-09-02 2021-09-02 Boring cutter for solving dislocation of flange at root part of blade on tower

Country Status (1)

Country Link
CN (1) CN113732330A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202591650U (en) * 2012-04-26 2012-12-12 成都大宏立机器制造有限公司 Fixing device for boring tool
CN202684121U (en) * 2012-08-15 2013-01-23 厦门天机自动化有限公司 Adjustable floating boring cutter assembly
CN203140806U (en) * 2013-03-18 2013-08-21 中国神华能源股份有限公司 Connecting device of boring cutter and cutter bar
CN205519701U (en) * 2016-03-15 2016-08-31 徐州思凯新技术开发有限公司 Adjustable device of lathe boring cutter depth of cut
CN205629413U (en) * 2016-03-29 2016-10-12 四川都江机械有限责任公司 A special boring cutter for processing distal end dead eye
CN206276924U (en) * 2016-08-25 2017-06-27 湖北飞龙摩擦密封材料股份有限公司 Combined boring tool
CN108097989A (en) * 2017-12-26 2018-06-01 郑州四维特种材料有限责任公司 A kind of boring bar and the boring cutter using the boring bar
CN109676167A (en) * 2019-02-28 2019-04-26 常州机电职业技术学院 Special cutter bar for processing deep and long holes by horizontal lathe and use method thereof
RU2692537C1 (en) * 2018-11-14 2019-06-25 Акционерное общество "Свердловский инструментальный завод" Boring cutter

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202591650U (en) * 2012-04-26 2012-12-12 成都大宏立机器制造有限公司 Fixing device for boring tool
CN202684121U (en) * 2012-08-15 2013-01-23 厦门天机自动化有限公司 Adjustable floating boring cutter assembly
CN203140806U (en) * 2013-03-18 2013-08-21 中国神华能源股份有限公司 Connecting device of boring cutter and cutter bar
CN205519701U (en) * 2016-03-15 2016-08-31 徐州思凯新技术开发有限公司 Adjustable device of lathe boring cutter depth of cut
CN205629413U (en) * 2016-03-29 2016-10-12 四川都江机械有限责任公司 A special boring cutter for processing distal end dead eye
CN206276924U (en) * 2016-08-25 2017-06-27 湖北飞龙摩擦密封材料股份有限公司 Combined boring tool
CN108097989A (en) * 2017-12-26 2018-06-01 郑州四维特种材料有限责任公司 A kind of boring bar and the boring cutter using the boring bar
RU2692537C1 (en) * 2018-11-14 2019-06-25 Акционерное общество "Свердловский инструментальный завод" Boring cutter
CN109676167A (en) * 2019-02-28 2019-04-26 常州机电职业技术学院 Special cutter bar for processing deep and long holes by horizontal lathe and use method thereof

Similar Documents

Publication Publication Date Title
GB2456716A (en) Pitch of blades on a wind power plant
US20120009068A1 (en) Low-head orthogonal turbine
CN108757298B (en) Pre-buried bolt structure of wind-powered electricity generation blade root
CN113732330A (en) Boring cutter for solving dislocation of flange at root part of blade on tower
CN201371366Y (en) Processing fixture for 7-fork blade root pin hole of steam turbine
CN211008467U (en) Drill bit structure with diamond coating
CN216882123U (en) High-speed internal milling cutter for crankshaft machining
CN204487663U (en) A kind of wind electricity blade lightning rod hole drilling positioning fixture
CN213419025U (en) Composite sheet drill bit
CN108757299B (en) Pre-buried bolt structure of slide positioning formula wind-powered electricity generation blade root
CN202087374U (en) Combined blade of grinder
CN103527421B (en) Blade lightning protection device of offshore wind generating set
CN208067365U (en) The positional punch tooling of root lighting proof strip for blade
CN214367199U (en) Novel coupling bolt
CN101987467B (en) Combinational planer cutter for positioning nut
CN221194959U (en) Drill bit for petroleum drilling
CN216966492U (en) High-efficient diamond blade grinding device
CN220267853U (en) Rotating wheel of water turbine
CN218563719U (en) Integrated form flow guide partition plate
CN210477401U (en) Marble saw bit convenient to installation
CN208853846U (en) A kind of aluminium alloy saw milling cutter combination
CN215369704U (en) Rope coring bit for crushing stratum
CN214416612U (en) Waste refrigerator washing machine recovery knife
CN213485879U (en) Garden operation saw blade
CN220277188U (en) High-hardness alloy crushing cutter

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 222069 west side of Dapu Road, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province (south of Dongfang Avenue)

Applicant after: Guoneng United Power Technology (Lianyungang) Co.,Ltd.

Address before: 222069 west side of Dapu Road, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province (south of Dongfang Avenue)

Applicant before: Guodian United Power Technology (Lianyungang) Co.,Ltd.

CB02 Change of applicant information
RJ01 Rejection of invention patent application after publication

Application publication date: 20211203

RJ01 Rejection of invention patent application after publication