CN108561269B - Carbon fiber blade with balance adjustment device - Google Patents

Carbon fiber blade with balance adjustment device Download PDF

Info

Publication number
CN108561269B
CN108561269B CN201810216655.0A CN201810216655A CN108561269B CN 108561269 B CN108561269 B CN 108561269B CN 201810216655 A CN201810216655 A CN 201810216655A CN 108561269 B CN108561269 B CN 108561269B
Authority
CN
China
Prior art keywords
carbon fiber
counterweight
blade
groove
fiber blade
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.)
Active
Application number
CN201810216655.0A
Other languages
Chinese (zh)
Other versions
CN108561269A (en
Inventor
栾宝奇
佟昊霖
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.)
Shenyang Chuangxin Huaxia Machinery Manufacturing Co ltd
Original Assignee
Shenyang Chuangxin Huaxia Machinery Manufacturing 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 Shenyang Chuangxin Huaxia Machinery Manufacturing Co ltd filed Critical Shenyang Chuangxin Huaxia Machinery Manufacturing Co ltd
Priority to CN201810216655.0A priority Critical patent/CN108561269B/en
Publication of CN108561269A publication Critical patent/CN108561269A/en
Application granted granted Critical
Publication of CN108561269B publication Critical patent/CN108561269B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Jib Cranes (AREA)

Abstract

The invention discloses a carbon fiber blade with a balance adjusting device, wherein the root of the carbon fiber blade is fixed with a hub at the lower part through bolts; the bolt is arranged in a through hole at the root of the carbon fiber blade, a stepped groove is formed in the upper portion of the through hole, a counterweight groove is formed in the surface, in contact with the hub, of the root of the carbon fiber blade, and a counterweight sheet is arranged in the counterweight groove. The invention has the advantages that: the inside of the carbon fiber blade is provided with a radial adjusting mechanism, so that the larger rotating radius of the balancing weight can be ensured; the surface shape of the carbon fiber blade is not damaged, and the strength of the blade is not influenced.

Description

Carbon fiber blade with balance adjustment device
Technical Field
The invention relates to the field of machinery, in particular to a carbon fiber blade.
Background
With the progress of society, the materials of blades on many large-scale mechanical equipment are changed from aluminum to carbon fiber, because the carbon fiber has the characteristics of high strength and good toughness. However, carbon fibers have certain drawbacks, such as the inability to punch the carbon fiber blade, or chain damage from the punching position is very easy to occur, which damages the structure inside the carbon fiber and causes damage to the carbon fiber blade. However, since dynamic balance is required to be maintained in the use process of the carbon fiber blade, and the balancing weight is added at the hub, the rotating radius of the balancing weight is smaller, and the good adjusting effect cannot be achieved, so that how to arrange the balancing weight structure of the carbon fiber blade is a technical problem faced by the invention.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a counterweight structure with larger adjustable radius, and the surface shape of a carbon fiber blade is not damaged, and the specific technical scheme is as follows:
The carbon fiber blade with the balance adjusting device is characterized in that the root of the carbon fiber blade is fixed with the hub at the lower part through bolts; the bolt is arranged in a through hole at the root of the carbon fiber blade, a stepped groove is formed in the upper portion of the through hole, a counterweight groove is formed in the surface, in contact with the hub, of the root of the carbon fiber blade, and a counterweight sheet is arranged in the counterweight groove.
And a counterweight ring is sleeved on the bolt at the step groove.
The counterweight groove is cylindrical, threads are arranged on the side face of the groove body, the counterweight sheet is arranged in the counterweight groove, and the counterweight cover screwed on the threads is tightly pressed outside the counterweight groove.
The counterweight ring is a spring washer.
In order to randomly adjust the depth (namely the rotation radius) of the weight plate, two weight covers are screwed in the weight groove, and the weight plate is arranged between the two weight covers.
The invention has the advantages that: the inside of the carbon fiber blade is provided with a radial adjusting mechanism, so that the larger rotating radius of the balancing weight can be ensured; the surface shape of the carbon fiber blade is not damaged, and the strength of the blade is not influenced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of pattern A-A of FIG. 1;
FIG. 3 is a schematic view of a weight slot for specifically adjusting the depth of a weight stack.
Detailed Description
The invention is specifically described below with reference to the accompanying drawings, as shown in fig. 1 and 2, the root of a carbon fiber blade 1 is fixed with a hub 6 at the lower part by bolts 5; the bolt 5 is arranged in the through hole 2 at the root of the carbon fiber blade, the stepped groove 3 is arranged at the upper part of the through hole 2, the counterweight groove 7 is arranged on the surface, which is contacted with the hub, of the root of the carbon fiber blade, and the counterweight sheet 8 is arranged in the counterweight groove 7.
Another weight mode is: and a counterweight ring 4 is sleeved on the bolt 5 at the step groove. In order to prevent the bolt from loosening, the counterweight ring is a spring washer. Thus, the looseness prevention and the weight adjustment are unified.
In addition, another form of weight is: as shown in fig. 3, in order to ensure that the rotation radius of the weight plate is large, the weight plate is arranged inside the blade far away from the rotation center as much as possible, therefore, the weight plate is cylindrical, the side surface of the tank body is provided with threads, the weight plate is arranged in the weight plate, and the outside is tightly pressed by the weight cover 9 screwed on the threads. The structure can also adopt two weight covers to be screwed in the weight groove, and weight pieces are arranged between the two weight covers 9, so that the depth (namely the rotation radius) of the weight pieces can be adjusted at will.

Claims (2)

1. A carbon fiber blade with balance adjustment device, characterized in that: the root of the carbon fiber blade is fixed with the hub at the lower part through bolts; the bolts are arranged in through holes at the root parts of the carbon fiber blades, stepped grooves are formed in the upper parts of the through holes, counterweight grooves are formed in the surfaces, in contact with the hubs, of the root parts of the carbon fiber blades, and counterweight plates are arranged in the counterweight grooves; the counterweight groove is cylindrical, threads are arranged on the side face of the groove body, the counterweight sheet is arranged in the counterweight groove, and the outside of the counterweight sheet is tightly pressed by a counterweight cover screwed on the threads; two weight covers are screwed in the weight groove, and weight pieces are arranged between the two weight covers; the counterweight groove does not damage the surface shape of the carbon fiber blade, so that the strength of the blade is not influenced; and a counterweight ring is sleeved on the bolt at the step groove.
2. The carbon fiber blade with balance adjustment device according to claim 1, wherein: the counterweight ring is a spring washer.
CN201810216655.0A 2018-03-16 2018-03-16 Carbon fiber blade with balance adjustment device Active CN108561269B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810216655.0A CN108561269B (en) 2018-03-16 2018-03-16 Carbon fiber blade with balance adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810216655.0A CN108561269B (en) 2018-03-16 2018-03-16 Carbon fiber blade with balance adjustment device

Publications (2)

Publication Number Publication Date
CN108561269A CN108561269A (en) 2018-09-21
CN108561269B true CN108561269B (en) 2024-06-07

Family

ID=63532774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810216655.0A Active CN108561269B (en) 2018-03-16 2018-03-16 Carbon fiber blade with balance adjustment device

Country Status (1)

Country Link
CN (1) CN108561269B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113187675B (en) * 2021-05-08 2023-03-21 天津派特瑞科技有限公司 Method for adjusting dynamic balance of fan blade
CN113562163B (en) * 2021-08-26 2025-06-06 惠阳航空螺旋桨有限责任公司 A propeller blade counterweight retaining ring and counterweight structure thereof

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538698A (en) * 1940-04-30 1941-08-13 Hills & Sons Ltd F Improved method of and means for balancing airscrews
FR876961A (en) * 1940-11-11 1942-11-24 Overhead propeller hollow blade, balanced by variable counterweights
GB600498A (en) * 1945-01-24 1948-04-09 United Aircraft Corp Improvements in or relating to propellers
JPH07279819A (en) * 1994-04-04 1995-10-27 Mitsubishi Heavy Ind Ltd Windmill blade and adjustment for its center of gravity
US6176681B1 (en) * 1996-11-08 2001-01-23 ABB Fl{umlaut over (a)}kt AB Rotor blade with improved attachment on a hub of a fan
WO2002097279A1 (en) * 2001-05-31 2002-12-05 Fläkt Woods AB Method for balancing a fan blade wheel
CN1551949A (en) * 2001-07-20 2004-12-01 ֱ Method for erecting wind power generation equipment on site
EP1956235A1 (en) * 2007-02-09 2008-08-13 Harakosan Co. Ltd. Blade for a wind turbine
CN202596995U (en) * 2012-03-26 2012-12-12 华锐风电科技(集团)股份有限公司 Counterweight device for fan blade and fan blade
KR20130021736A (en) * 2011-08-23 2013-03-06 삼성중공업 주식회사 Wind turbine
CN103953568A (en) * 2014-04-14 2014-07-30 浙江理工大学 Balance disc used in solid-liquid two-phase flow conveying
CN204113550U (en) * 2014-07-01 2015-01-21 杭州瑞利科技有限公司 A kind of micro wind turbine generator wind wheel
CN106870301A (en) * 2017-04-26 2017-06-20 中科国风科技有限公司 A kind of Portable wind power Leaf-Air interior circulation heats deicing system
CN207974911U (en) * 2018-03-16 2018-10-16 沈阳创新华夏机械制造有限公司 A kind of carbon fiber blade with balance adjusting device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050265846A1 (en) * 2004-06-01 2005-12-01 Przytulski James C Balance assembly for rotary turbine component and method for installing and/or adjusting balance weight

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538698A (en) * 1940-04-30 1941-08-13 Hills & Sons Ltd F Improved method of and means for balancing airscrews
FR876961A (en) * 1940-11-11 1942-11-24 Overhead propeller hollow blade, balanced by variable counterweights
GB600498A (en) * 1945-01-24 1948-04-09 United Aircraft Corp Improvements in or relating to propellers
JPH07279819A (en) * 1994-04-04 1995-10-27 Mitsubishi Heavy Ind Ltd Windmill blade and adjustment for its center of gravity
US6176681B1 (en) * 1996-11-08 2001-01-23 ABB Fl{umlaut over (a)}kt AB Rotor blade with improved attachment on a hub of a fan
WO2002097279A1 (en) * 2001-05-31 2002-12-05 Fläkt Woods AB Method for balancing a fan blade wheel
CN1551949A (en) * 2001-07-20 2004-12-01 ֱ Method for erecting wind power generation equipment on site
EP1956235A1 (en) * 2007-02-09 2008-08-13 Harakosan Co. Ltd. Blade for a wind turbine
KR20130021736A (en) * 2011-08-23 2013-03-06 삼성중공업 주식회사 Wind turbine
CN202596995U (en) * 2012-03-26 2012-12-12 华锐风电科技(集团)股份有限公司 Counterweight device for fan blade and fan blade
CN103953568A (en) * 2014-04-14 2014-07-30 浙江理工大学 Balance disc used in solid-liquid two-phase flow conveying
CN204113550U (en) * 2014-07-01 2015-01-21 杭州瑞利科技有限公司 A kind of micro wind turbine generator wind wheel
CN106870301A (en) * 2017-04-26 2017-06-20 中科国风科技有限公司 A kind of Portable wind power Leaf-Air interior circulation heats deicing system
CN207974911U (en) * 2018-03-16 2018-10-16 沈阳创新华夏机械制造有限公司 A kind of carbon fiber blade with balance adjusting device

Also Published As

Publication number Publication date
CN108561269A (en) 2018-09-21

Similar Documents

Publication Publication Date Title
CN108561269B (en) Carbon fiber blade with balance adjustment device
US7357702B2 (en) Grinding wheel
CN202737652U (en) Balancing device of motor rotor and motor
CN104821670A (en) Asynchronous traction motor and rotor thereof
CN205835565U (en) Surfacer stacked elasticity feeding roller
CN209868516U (en) Multipurpose gyro wheel bracket
CN203774993U (en) Squirrel-cage motor rotor balancing device
CN202851686U (en) Improved vibrating screen bearing box
CN202399157U (en) Dynamic balance correcting device for diamond abrasive disk
CN102728883A (en) Milling cutter device
CN206108249U (en) Splint riding wheel
CN204658176U (en) A kind of power spindle assembly justifying grinding machine
CN210558889U (en) Lifting hook device and mounting structure thereof
CN206199407U (en) Hammer leaf guide rod has the rotor mill of stopping means
CN213445729U (en) Improved elevator traction sheave structure
CN223923752U (en) A maintenance structure for the low-speed end of a gearbox
CN216842757U (en) Quick detachable wind-powered electricity generation speed increaser locking dish for low-speed shaft
CN110500367A (en) A kind of plane overload safety protection device
CN215586712U (en) Equipment main shaft for mining equipment
CN220067112U (en) Motor rotor balance structure
CN213410557U (en) A high-speed bar high-speed shearing roulette
CN201938027U (en) Tiller cutter blade and cutter head installing structure
JP2013240880A (en) Dried bonito shaving machine
CN217723316U (en) Shredding and slicing integrated stainless steel cutter head
CN202700801U (en) Rectangular pendulum screen main shaft transmission device

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
GR01 Patent grant