KR100841963B1 - Fastener for preventing welding distortion of key bar for generator - Google Patents

Fastener for preventing welding distortion of key bar for generator Download PDF

Info

Publication number
KR100841963B1
KR100841963B1 KR1020070005982A KR20070005982A KR100841963B1 KR 100841963 B1 KR100841963 B1 KR 100841963B1 KR 1020070005982 A KR1020070005982 A KR 1020070005982A KR 20070005982 A KR20070005982 A KR 20070005982A KR 100841963 B1 KR100841963 B1 KR 100841963B1
Authority
KR
South Korea
Prior art keywords
fastener
key bar
generator
key
radial
Prior art date
Application number
KR1020070005982A
Other languages
Korean (ko)
Inventor
남경민
Original Assignee
두산중공업 주식회사
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 두산중공업 주식회사 filed Critical 두산중공업 주식회사
Priority to KR1020070005982A priority Critical patent/KR100841963B1/en
Application granted granted Critical
Publication of KR100841963B1 publication Critical patent/KR100841963B1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

A fastener for preventing welding distortion of a key bar for a generator is provided to improve productivity by minimizing the welding distortion in welding the key bar by fixing intervals of a radial direction and a tangential direction of the key bar. A fastener for preventing welding distortion of a key bar(2) for a generator includes a radial fastener(10) and a chordal fastener(20) for forcedly fixing adjacent key bars. The radial fastener has a rectangular rod-shaped body and a through hole is formed on a center of the body. The chordal fastener has a cylindrical body and adjustment units coupled by a right-handed screw and a left-handed screw on both sides. Grooves are formed outside the adjustment units and the key bars are inserted into the grooves.

Description

발전기 키 바의 용접변형 방지용 패스너{Fastener for preventing welding distortion of key bar for generator}Fasteners for preventing welding distortion of key bar for generator

도1은 본 발명의 발전기 키 바를 도시하는 도면1 illustrates a generator key bar of the present invention.

도2는 본 발명의 래디얼 패스너를 도시하는 도면2 shows a radial fastener of the present invention;

도3은 본 발명의 코달 패스너를 도시하는 도면Figure 3 shows a codal fastener of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

1: 발전기 고정자 프레임 2: 키 바1: generator stator frame 2: key bar

3: 링 플레이트 10: 래디얼 패스너3: ring plate 10: radial fastener

20: 코달 패스너20: Codal Fasteners

본 발명은 대형발전기의 키 바(Key Bar)의 용접조립 시 용접변형을 최소화하여 정밀조립공차를 만족하기 위해 사용되는 용접변형을 억제하는 패스너에 관한 것이다.The present invention relates to a fastener for suppressing welding deformation used to minimize precision of welding deformation during welding assembly of a key bar of a large power generator to satisfy a precision assembly tolerance.

종래의 GE(General Electric Co) 타입 발전기는 발전기 고정자의 키 바를 용접변형 방향 및 변형량을 예측하여 품질을 만족시켰다. 키 바는 고정자의 주요 전 기적 구성품인 철심의 조립위치를 결정하는데 사용되며 정밀조립이 요구된다. 따라서, 키 바 용접시 4축 일체형 클램프를 사용하여 용접변형을 최소화한다.The conventional GE (General Electric Co) type generator satisfies the quality by predicting the welding deformation direction and the deformation amount of the key bar of the generator stator. Key bars are used to determine the assembly position of the iron core, the main electrical component of the stator, and require precise assembly. Therefore, the welding deformation is minimized by using the 4-axis integral clamp when welding the key bar.

이러한 용접변형 방향 및 변형량 예측은 곤란한 것으로 경험에 의해 데이터를 취득한다.Such welding deformation direction and deformation amount prediction are difficult, and data is acquired by experience.

그러나, GE 타입이 아닌 발전기에서는 키 바의 갯수가 상대적으로 많아 4축 일체형 클램프를 사용하기에는 용접공간 확보의 곤란으로 적용이 불가능하다. However, in the non-GE generator, the number of key bars is relatively high, and thus it is impossible to apply the four-axis integrated clamp due to difficulty in securing a welding space.

본 발명은 상기와 같은 문제점을 해결하기 위하여 발전기 고정자 프레임의 내부에 고정되는 키 바를 위치 조정하는 용접변형 방지용 패스너를 제공하고자 하는 것이다.The present invention is to provide a weld deformation preventing fastener for adjusting the position of the key bar fixed to the inside of the generator stator frame in order to solve the above problems.

본 발명의 용접변형 방지용 패스너는 이웃한 키 바를 강제로 고정시키는 래디얼 패스너와 코달 패스너로 이루어지고, 상기 래디얼 패스너는 사각 막대형상의 몸체를 가지고, 몸체 중앙에는 관통공이 형성되며, 상기 코달 패스너는 원통형 몸체와 양측에 오른나사와 왼나사로 체결된 조정부를 가지고 조정부의 외측에는 키 바가 삽입되는 홈이 형성된다.The welding deformation preventing fastener of the present invention comprises a radial fastener and a codal fastener forcibly fixing a neighboring key bar. The radial fastener has a rectangular bar-shaped body, and a through hole is formed in the center of the body, and the codal fastener is cylindrical. A groove having a key bar inserted therein is formed on the outer side of the adjustment portion with the adjustment portion fastened to the body and the right and left screws on both sides.

본 발명을 첨부된 도면을 참조하여 상세히 설명한다.The present invention will be described in detail with reference to the accompanying drawings.

도1에는 본 발명의 발전기 키 바가 도시된다.1 shows a generator key bar of the present invention.

발전기 고정자 프레임(1)에는 42개의 키 바(2)가 원주상으로 고정된다.42 key bars 2 are circumferentially fixed to the generator stator frame 1.

키 바(2)는 반경방향 조립공차가 +0.13/ -0.13 mm 이고, 접선방향 조립공차가 +0.13/ -0.13 mm 이다.The key bar 2 has a radial assembly tolerance of + 0.13 / -0.13 mm and a tangential assembly tolerance of + 0.13 / -0.13 mm.

키 바(2)를 조립할 때는 높이(Elevation)를 조정하고, 반경 및 접선방향 수직도도 만족시켜야 한다.When assembling the key bar 2, the height must be adjusted and the radius and tangential perpendicularity also satisfied.

키 바(2)를 조립할 때는 기준 키 바를 조립하고, 잔여 키 바를 본 발명의 패스너를 이용하여 위치를 조정하여 고정시킨다.When assembling the key bar 2, the reference key bar is assembled, and the remaining key bar is fixed by adjusting its position using the fastener of the present invention.

기준 키 바(2)와 잔여 키바(2)사이에는 용접변형 방지용 래디얼 패스너(Radial Fastener)(10)와 코달 패스너(Chordal Fastener)(20)가 설치된다.Between the reference key bar 2 and the remaining key bar 2, a radial fastener 10 and a chord fastener 20 for preventing deformation of welding are provided.

도2에는 본 발명의 래디얼 패스너가 도시된다.2 shows a radial fastener of the present invention.

래디얼 패스너(10)는 사각 막대형상의 몸체를 가지고, 몸체 중앙에는 관통공(11)이 형성된다. 관통공(11)에는 볼트가 삽입되어 패스너가 고정된다.The radial fastener 10 has a rectangular bar-shaped body, the through hole 11 is formed in the center of the body. A bolt is inserted into the through hole 11 to fix the fastener.

래디얼 패스너(10)의 설치방법은 다음과 같다.The installation method of the radial fastener 10 is as follows.

먼저, 키 바(2)를 용접되는 링 플레이트(3) 표면으로 밀착시킨 후 치수를 측정하여 도면치수 기준으로 삽입되는 심(Shim) 량을 결정한다.First, the key bar 2 is brought into close contact with the surface of the ring plate 3 to be welded, and then the dimensions are measured to determine the amount of shim inserted based on the drawing dimensions.

다음에는 키 바(2)와 링 플레이트(3)사이에 결정된 심을 삽입한 상태에서 래디얼 패스너(10)를 볼트로 강제 밀착시켜 조립한다.Next, the radial fastener 10 is assembled by forcibly contacting with the bolt while the determined shim is inserted between the key bar 2 and the ring plate 3.

도3에는 본 발명의 코달 패스너가 도시된다.3 shows a codal fastener of the present invention.

코달 패스너(20)는 원통형 몸체(21)와 양측에 오른나사와 왼나사로 체결된 조정부(22)를 가진다. 조정부(22)의 외측에는 키 바(2)가 삽입되는 홈(23)이 형성된다.Codal fastener 20 has a cylindrical body 21 and the adjusting portion 22 is fastened to the right and left screws on both sides. The outer side of the adjusting part 22 is formed with a groove 23 into which the key bar 2 is inserted.

코달 패스너(20)의 설치방법은 다음과 같다.The installation method of the codal fastener 20 is as follows.

기준 키 바(2)를 기준으로 잔여 키 바사이에 코달 패스너(20)를 가조립한다.The codal fastener 20 is temporarily assembled between the remaining key bars with respect to the reference key bar 2.

코달 패스너(20)의 몸체(21)를 회전시켜 양쪽의 조정부(22)의 거리를 조정하여 키 바의 간격을 강제로 고정한다.The body 21 of the codal fastener 20 is rotated to adjust the distance between the adjusting portions 22 on both sides, thereby forcibly fixing the gap between the key bars.

상기와 같은 본 발명의 용접변형 방지용 패스너들은 키 바의 반경방향 및 접선방향의 간격을 고정시켜 키 바의 용접시 용접변형을 최소화한다.The welding deformation preventing fasteners of the present invention as described above to minimize the welding deformation during the welding of the key bar by fixing the interval between the radial and tangential direction of the key bar.

본 발명의 발전기 키 바의 용접변형 방지용 패스너는 수행 경험이 없는 GE 타입이 아닌 발전기의 제작 공정중 키 바 조립시 용접변형을 최소화시켜 품질확보는 물론 생산성 향상의 효과를 제공한다.The welding deformation preventing fastener of the generator key bar of the present invention minimizes the welding deformation during assembly of the key bar during the manufacturing process of a generator other than the GE type, which has no performance, thereby ensuring the quality and improving the productivity.

Claims (1)

다수개의 키 바(2)가 발전기 고정자 프레임(1)에 고정되는 발전기 고정자에 있어서, In the generator stator in which a plurality of key bars 2 are fixed to the generator stator frame 1, 이웃한 키 바(2)를 강제로 고정시키는 래디얼 패스너(10)와 코달 패스너(20)로 이루어지고, 상기 래디얼 패스너(10)는 사각 막대형상의 몸체를 가지고, 몸체 중앙에는 관통공(11)이 형성되며, 상기 코달 패스너(20)는 원통형 몸체(21)와 양측에 오른나사와 왼나사로 체결된 조정부(22)를 가지고 조정부(22)의 외측에는 키 바(2)가 삽입되는 홈(23)이 형성되는 발전기 키 바의 용접변형 방지용 패스너.Radial fastener 10 and codal fastener 20 for forcibly fixing the adjacent key bar 2, the radial fastener 10 has a rectangular bar-shaped body, the through hole 11 in the center of the body Is formed, the codal fastener 20 has a cylindrical body 21 and the adjusting portion 22 fastened to the right and left screws on both sides and the groove 23 into which the key bar 2 is inserted on the outside of the adjusting portion 22 Fasteners for preventing welding deformation of the generator key bar.
KR1020070005982A 2007-01-19 2007-01-19 Fastener for preventing welding distortion of key bar for generator KR100841963B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070005982A KR100841963B1 (en) 2007-01-19 2007-01-19 Fastener for preventing welding distortion of key bar for generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070005982A KR100841963B1 (en) 2007-01-19 2007-01-19 Fastener for preventing welding distortion of key bar for generator

Publications (1)

Publication Number Publication Date
KR100841963B1 true KR100841963B1 (en) 2008-06-27

Family

ID=39772687

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070005982A KR100841963B1 (en) 2007-01-19 2007-01-19 Fastener for preventing welding distortion of key bar for generator

Country Status (1)

Country Link
KR (1) KR100841963B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101526297B1 (en) * 2014-01-17 2015-06-05 두산중공업 주식회사 Stator core installation method of generator, a generator thereof and a stator core assembly
KR200477965Y1 (en) * 2014-04-25 2015-08-10 한전케이피에스 주식회사 Staor coil removing tool and staor coil inserting tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003023738A (en) 2001-07-06 2003-01-24 Mitsubishi Electric Corp Stator core device for dynamo-electric machine
KR20040100480A (en) * 2003-05-23 2004-12-02 두산중공업 주식회사 Band for Prevention Vibration of Generator
JP2007009610A (en) * 2005-07-01 2007-01-18 Shimizu Corp Rectangular press-in caisson and edge earth removal method by the rectangular press-in caisson

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003023738A (en) 2001-07-06 2003-01-24 Mitsubishi Electric Corp Stator core device for dynamo-electric machine
KR20040100480A (en) * 2003-05-23 2004-12-02 두산중공업 주식회사 Band for Prevention Vibration of Generator
JP2007009610A (en) * 2005-07-01 2007-01-18 Shimizu Corp Rectangular press-in caisson and edge earth removal method by the rectangular press-in caisson

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101526297B1 (en) * 2014-01-17 2015-06-05 두산중공업 주식회사 Stator core installation method of generator, a generator thereof and a stator core assembly
US9812910B2 (en) 2014-01-17 2017-11-07 Doosan Heavy Industries & Construction Co., Ltd. Method for mounting stator core on generator assembly using the same
KR200477965Y1 (en) * 2014-04-25 2015-08-10 한전케이피에스 주식회사 Staor coil removing tool and staor coil inserting tool

Similar Documents

Publication Publication Date Title
US9627950B2 (en) Method of servicing a power generator
KR100950829B1 (en) Rotor of rotary electric machine and manufacturing method of the same
JP6178780B2 (en) Method and apparatus for attaching a stator core to a generator frame
KR20000016870A (en) Rotor of electromotor
KR100841963B1 (en) Fastener for preventing welding distortion of key bar for generator
CN102195373A (en) Rotary electrical machine
US10559988B2 (en) Rotor for rotary electric machine
US20210408849A1 (en) Rotary electric machine stator core and manufacturing method therefor
KR101243310B1 (en) A winding apparatus winding double pancake coil
US7425709B2 (en) Modular ion source
KR20190041401A (en) Secondary section for ironless linear motor and ironless linear motor
CN116247883A (en) Processing method of motor stator and rotor
EP2669531A1 (en) Fixing of stator segment elements
US20080315703A1 (en) Stator Core for Alternator and Motor
JP6914992B2 (en) Stator, stator manufacturing method and outer rotor type motor
CN109819579B (en) Mechanical structure of high-frequency electric focusing ion accelerating device and assembling method thereof
US20050057166A1 (en) Longitudinal cathode expansion in an ion source
CN210273641U (en) Rotor for permanent magnet motor and permanent magnet motor
CN111697721A (en) Rotor for permanent magnet motor and permanent magnet motor
CN113814464B (en) Turbine disc inclined tree-shaped mortise broaching deformation control assembly and broaching process
CN111245133B (en) Permanent magnet frequency conversion all-in-one machine
CN113746236B (en) Rotor support, motor rotor and motor
KR20140086076A (en) The superconduction coil assembly for module
CN211361426U (en) Claw-pole distance uniformity positioning tool
EP2897255B1 (en) Method for mounting stator core on generator and generator and stator core assembly using the same

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130313

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20140401

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20160324

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20170324

Year of fee payment: 10