CN108555697A - A kind of method for grinding of rotator tip - Google Patents

A kind of method for grinding of rotator tip Download PDF

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Publication number
CN108555697A
CN108555697A CN201711064131.6A CN201711064131A CN108555697A CN 108555697 A CN108555697 A CN 108555697A CN 201711064131 A CN201711064131 A CN 201711064131A CN 108555697 A CN108555697 A CN 108555697A
Authority
CN
China
Prior art keywords
blade
leaf dish
grinding
installation
tongue
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
CN201711064131.6A
Other languages
Chinese (zh)
Inventor
谭贻文
吕文生
曾桃飞
顾志勇
于加辉
宋秀峰
刘昌伟
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.)
AECC Harbin Dongan Engine Co Ltd
Original Assignee
AECC Harbin Dongan Engine 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 AECC Harbin Dongan Engine Co Ltd filed Critical AECC Harbin Dongan Engine Co Ltd
Priority to CN201711064131.6A priority Critical patent/CN108555697A/en
Publication of CN108555697A publication Critical patent/CN108555697A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a kind of method for grinding of rotator tip, by using process plate, process plate uses tenon groove structure identical with compressor rotor, straight pin fixed blade circumferential position, screw is used to hold out against the mode of blade dovetail slot bottom end face, avoid because cylindrical grinder rotating speed is low simultaneously, grinding force is more than centrifugal force, be ground blade when blade pinches are gone down, working-blade elongation it is irregular influence calm the anger efficiency the case where, ensure that compressor rotor blade tip diameter value and jitter values.Method provided by the invention ensure that the case where diameter value of blade after processing and jitter values are with when work is consistent, to ensure the efficiency of calming the anger of compressor.

Description

A kind of method for grinding of rotator tip
Technical field
The present invention relates to a kind of method for grinding, especially a kind of method for grinding of rotator tip is realized under lower-speed state Simulate the grinding of high speed rotor blade tip.
Background technology
At work, the gap of blade tip and external graphite seal ring affects compressor to aero-engine compressor It calms the anger efficiency.The method for grinding of blade tip is to carry out low speed grinding using plain external grinding machine at present, can not when due to grinding Reaching working speed, is influenced by grinding force, blade is to contract when processing, under high rotary speed working state, the blade quilt of contraction Throw away, due to blade with installation blade tongue-and-groove there are gaps, under the action of the centrifugal force, cause blade tip diameter generate change Change, and due to gap difference, until diameter change is made not have rule, causes blade tip diameter after grinding and blade tip diameter when work It is inconsistent, ideal efficiency of calming the anger cannot be reached.
Invention content
The object of the present invention is to provide a kind of method for grinding of rotator tip, and the diameter value of blade after processing may be implemented And jitter values with work when the case where it is consistent, to ensure the efficiency of calming the anger of compressor.
Specific embodiments of the present invention are：
(1) design technology leaf dish, the technique leaf dish is consistent with the engine leaf dish appearance and size that blade to be ground is installed, and with The engine leaf dish same position is provided with the tongue-and-groove of installation blade, and radial screw is arranged in the tongue-and-groove bottom, described Withstand the lower face of blade dovetail slot after blade installation；Prolong radial direction in tongue-and-groove bottom simultaneously and fixed cylinder is set Pin, the straight pin play the role of circumferentially limiting to blade；
(2) blade is mounted in technique leaf dish, ensures that blade listrium abuts straight pin when installation, blade towards and working condition Unanimously；
(3) unified torque is selected, screw is tightened with torque spanner, jacks up the lower face of blade dovetail slot；
(4) plain external grinding machine is used to be ground blade, rotating speed is 25r/min~50r/min, amount of feeding 0.005mm, and is carried out It is fully cooled, is finally machined to predetermined size；
(5) all blade processings are finished by (4) step；
(6) final inspection.
By the present invention in that with process plate, process plate uses tenon groove structure identical with compressor rotor, while using circle Pin fixed blade circumferential position, screw hold out against the mode of blade dovetail slot bottom end face, avoid because cylindrical grinder rotating speed is low, grinding Power be more than centrifugal force, be ground blade when blade pinches are gone down, working-blade elongation it is irregular influence calm the anger efficiency the case where, protect Compressor rotor blade tip diameter value and jitter values are demonstrate,proved.Method provided by the invention ensure that the diameter value of blade after processing and The case where jitter values are with when work is consistent, to ensure the efficiency of calming the anger of compressor.
Description of the drawings
Fig. 1 is technique bladed-disk assemblies schematic diagram of the present invention.
Specific implementation mode
As shown, a kind of method for grinding of rotator tip includes the following steps：
(1) design technology leaf dish 1, the technique leaf dish 1 is consistent with the engine leaf dish appearance and size that blade to be ground is installed, and The tongue-and-groove of installation blade is provided with 1 same position of engine leaf dish, radial screw 2 is arranged in the tongue-and-groove bottom, The lower face that blade dovetail slot is withstood after blade installation；Prolong the fixed circle of radial direction setting in tongue-and-groove bottom simultaneously Pin 3, the straight pin 3 play the role of circumferentially limiting to blade；
(2) blade is mounted in technique leaf dish 1, ensures that blade listrium abuts straight pin 3 when installation, blade towards and work shape State is consistent；
(3) unified torque is selected, screw 2 is tightened with torque spanner, jacks up the lower face of blade dovetail slot；
(4) plain external grinding machine is used to be ground blade, rotating speed is 25r/min~50r/min, amount of feeding 0.005mm, and is carried out It is fully cooled, is finally machined to predetermined size；
(5) all blade processings are finished by (4) step；
(6) final inspection.

Claims (1)

1. a kind of method for grinding of rotator tip, which is characterized in that the method includes the following steps：
1) design technology leaf dish (1), the engine leaf dish appearance and size one of the technique leaf dish (1) and blade to be ground installation It causes, and is provided with the tongue-and-groove of installation blade with described engine leaf dish (1) same position, tongue-and-groove bottom setting is radial Screw (2), the lower face that blade dovetail slot is withstood after blade installation；Prolong radial direction in tongue-and-groove bottom simultaneously to set Fixed cylinder pin (3) is set, the straight pin (3) plays the role of circumferentially limiting to blade；
2) blade is mounted in technique leaf dish (1), ensures that blade listrium abuts straight pin (3) when installation, blade towards and work Make state consistency；
3) unified torque is selected, screw (2) is tightened with torque spanner, jacks up the lower face of blade dovetail slot；
4) plain external grinding machine is used to be ground blade, rotating speed is 25r/min~50r/min, amount of feeding 0.005mm, and is carried out It is fully cooled, is finally machined to predetermined size；
5) by 4) step all blade processings are finished；
6) final inspection.
CN201711064131.6A 2017-11-02 2017-11-02 A kind of method for grinding of rotator tip Pending CN108555697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711064131.6A CN108555697A (en) 2017-11-02 2017-11-02 A kind of method for grinding of rotator tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711064131.6A CN108555697A (en) 2017-11-02 2017-11-02 A kind of method for grinding of rotator tip

Publications (1)

Publication Number Publication Date
CN108555697A true CN108555697A (en) 2018-09-21

Family

ID=63530324

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711064131.6A Pending CN108555697A (en) 2017-11-02 2017-11-02 A kind of method for grinding of rotator tip

Country Status (1)

Country Link
CN (1) CN108555697A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112372451A (en) * 2020-11-05 2021-02-19 中国航发哈尔滨东安发动机有限公司 High-precision rotor blade and rim size control method thereof
CN113118924A (en) * 2021-06-17 2021-07-16 中国航发上海商用航空发动机制造有限责任公司 Rotor blade changing method
CN114833382A (en) * 2022-04-14 2022-08-02 中国航发贵州黎阳航空动力有限公司 Method for processing blade tip length of fan blade

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512115A (en) * 1983-06-07 1985-04-23 United Technologies Corporation Method for cylindrical grinding turbine engine rotor assemblies
EP0738197A1 (en) * 1992-07-18 1996-10-23 Western Atlas U.K. Limited Grinding method and apparatus
CN102539135A (en) * 2011-12-31 2012-07-04 北京航空航天大学 Thermal mechanical fatigue test system for hollow air-cooled turbine blade
CN104128810A (en) * 2014-07-23 2014-11-05 中国人民解放军第五七一九工厂 Turbine blade molded surface repairing clamp
CN205799150U (en) * 2016-06-22 2016-12-14 中国航空工业集团公司沈阳发动机设计研究所 A kind of positioner for grinding blade tip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512115A (en) * 1983-06-07 1985-04-23 United Technologies Corporation Method for cylindrical grinding turbine engine rotor assemblies
EP0738197A1 (en) * 1992-07-18 1996-10-23 Western Atlas U.K. Limited Grinding method and apparatus
CN102539135A (en) * 2011-12-31 2012-07-04 北京航空航天大学 Thermal mechanical fatigue test system for hollow air-cooled turbine blade
CN104128810A (en) * 2014-07-23 2014-11-05 中国人民解放军第五七一九工厂 Turbine blade molded surface repairing clamp
CN205799150U (en) * 2016-06-22 2016-12-14 中国航空工业集团公司沈阳发动机设计研究所 A kind of positioner for grinding blade tip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈大丽: "转子叶片外径组合加工方法研究", 《科技创新导报》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112372451A (en) * 2020-11-05 2021-02-19 中国航发哈尔滨东安发动机有限公司 High-precision rotor blade and rim size control method thereof
CN113118924A (en) * 2021-06-17 2021-07-16 中国航发上海商用航空发动机制造有限责任公司 Rotor blade changing method
CN113118924B (en) * 2021-06-17 2021-09-03 中国航发上海商用航空发动机制造有限责任公司 Rotor blade changing method
CN114833382A (en) * 2022-04-14 2022-08-02 中国航发贵州黎阳航空动力有限公司 Method for processing blade tip length of fan blade
CN114833382B (en) * 2022-04-14 2023-11-21 中国航发贵州黎阳航空动力有限公司 Method for processing length of blade tip of fan blade

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Application publication date: 20180921

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