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CN105710453B - Specific purpose tool for grinding one-level solar wheeling tooth set - Google Patents

Specific purpose tool for grinding one-level solar wheeling tooth set Download PDF

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Publication number
CN105710453B
CN105710453B CN201610153170.2A CN201610153170A CN105710453B CN 105710453 B CN105710453 B CN 105710453B CN 201610153170 A CN201610153170 A CN 201610153170A CN 105710453 B CN105710453 B CN 105710453B
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CN
China
Prior art keywords
flange
level solar
solar wheeling
tooth
tooth set
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Application number
CN201610153170.2A
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Chinese (zh)
Other versions
CN105710453A (en
Inventor
张宇航
刘博�
林琳
陈洪港
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.)
Harbin Turbine Co Ltd
Hadian Power Equipment National Engineering Research Center Co Ltd
Original Assignee
Harbin Turbine Co Ltd
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Publication date
Application filed by Harbin Turbine Co Ltd filed Critical Harbin Turbine Co Ltd
Priority to CN201610153170.2A priority Critical patent/CN105710453B/en
Publication of CN105710453A publication Critical patent/CN105710453A/en
Application granted granted Critical
Publication of CN105710453B publication Critical patent/CN105710453B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F19/00Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B23F19/02Lapping gear teeth
    • B23F19/025Lapping bevel gears by making use of a correspondingly shaped counterpart

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Specific purpose tool for grinding one-level solar wheeling tooth set, it is related to a kind of specific purpose tool of tooth lapping set.During one-level solar wheeling tooth set is meshed with sun gear in existing steam turbine decelerator, easily there is the not high phenomenon of laminating rate, the problem of causing to be driven unstable.Flange is tensed in the present invention to be located in the built-in centre bore that one-level solar wheeling tooth covers, locating flange is located in the positioning hole that one-level solar wheeling tooth covers, pivot flange is arranged in one-level solar wheeling tooth set on the end face away from lapping gears, the inner toothed surface that the outer flank of tooth of lapping gears covers with one-level solar wheeling tooth is equipped with, one end of pull bar is located on a locating piece, the other end of pull bar sequentially passes through lapping gears, tense flange, on locating flange and pivot flange, lapping gears are fixedly set on pull bar, pull bar is respectively with tensing flange axially position centre bore, the radial positioning centre bore of locating flange and the spacing centre bore of pivot flange are slidably matched.The present invention is used to grind one-level solar wheeling tooth set.

Description

Specific purpose tool for grinding one-level solar wheeling tooth set
Technical field
The present invention relates to a kind of specific purpose tool of tooth lapping set, belong to machining technology field.
Background technology
Reductor plays matching rotating speed between prime mover and working machine or executing agency and transmits torque, reductor It is a kind of machinery of precision relatively, the use of its purpose is reduction rotating speed, increases torque.It can be divided into list according to transmission series difference Level and multistage speed reducer;It can be divided into cylindrical gear reducer, conical gear reducer and circular cone-cylinder according to tooth factory wheel shape Tooth running wheel reductor.
In decelerator used in steam turbine, one-level solar wheeling tooth set is with sun gear to engage cooperation, and the two is in specific works During, mesh degree and fitting area are short of, and the not high phenomenon of laminating rate, the problem of causing to be driven unstable easily occur.
The content of the invention
During one-level solar wheeling tooth set is meshed with sun gear in existing steam turbine decelerator, easily fit The not high phenomenon of rate, the problem of causing to be driven unstable, and then propose the specific purpose tool for grinding one-level solar wheeling tooth set.
The present invention adopts the technical scheme that to solve above-mentioned technical problem:
A kind of specific purpose tool for being used to grind one-level solar wheeling tooth set, specific purpose tool includes pull bar, support frame, tooth lapping Wheel, tension flange, locating flange and pivot flange, support frame as described above include base and two locating pieces, and the base level is set Put, two locating pieces are disposed in parallel on base and each locating piece is fixedly connected with base, the lapping gears, tension method Orchid, locating flange, one-level solar wheeling tooth set and pivot flange are sequentially coaxially arranged between two locating pieces, the tension flange In the built-in centre bore for being arranged on one-level solar wheeling tooth set, the locating flange is arranged on the positioning hole of one-level solar wheeling tooth set Interior, the pivot flange is arranged in one-level solar wheeling tooth set on the end face away from lapping gears and pivot flange and the end face phase It is adjacent to, the lapping gears are external gear, the inner toothed surface cooperation that the outer flank of tooth and the one-level solar wheeling tooth of the lapping gears cover is set Put, one end of the pull bar is located on a locating piece, the other end of the pull bar sequentially passes through lapping gears, tension On flange, locating flange and pivot flange, the lapping gears are fixedly set on pull bar, and the pull bar is respectively with tensing flange Axially position centre bore, the radial positioning centre bore of locating flange and the spacing centre bore of pivot flange be slidably matched.
The invention has the advantages that:
1st, rationally, manufacturing cost is cheap, convenient to use for scientific structure design of the present invention.The outer flank of tooth of lapping gears exists Shuttle grinding is carried out to one-level solar wheeling tooth set in the presence of pull bar, by tensing flange, locating flange and pivot flange Between cooperation effectively realize the multidirectional positioning covered to one-level solar wheeling tooth, it is ensured that the stabilization of grinding effect and abrasion site Accuracy, the mesh degree of the flank of tooth effectively improves between the one-level solar wheeling tooth set and sun gear that are ground by the present invention, Fitting area is able to effectively increase, so as to increase laminating rate, transmission is more stablized.
2nd, the workload of the present invention effectively reduction grinding, operation is flexible, make grinding work that one-level solar wheeling tooth covers not by Place space is limited, and floor space is 1.5m~2m, it is easy to popularized.
Brief description of the drawings
Fig. 1 is the first front view structure profile of the present invention, and lapping gears 3 are state to be ground in figure, lapping gears 3 with The gap of flange 4 is tensed to set;
Fig. 2 is the second front view structure profile of the present invention, and lapping gears 3 are grinding state in figure, and lapping gears 3 are with drawing Tight flange 4 is mutually adjacent to;
Fig. 3 is Fig. 1 top view;
Fig. 4 is the main structure diagram of lapping gears 3;
Fig. 5 is the profile at A-A in Fig. 4;
Fig. 6 is the main structure diagram of one-level solar wheeling tooth set 7;
Fig. 7 is the profile at B-B in Fig. 6.
Embodiment
Embodiment one:Illustrate present embodiment, this implementation with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 Mode includes pull bar 1, support frame 2, lapping gears 3, tension flange 4, locating flange 5 and pivot flange 6, and support frame as described above 2 is wrapped Include base 2-2 and two locating pieces 2-1, the base 2-2 are horizontally disposed, two locating piece 2-1 are disposed in parallel on base 2-2 And each locating piece 2-1 is fixedly connected with base 2-2, the lapping gears 3, tension flange 4, locating flange 5, one-level sun gear Tooth set 7 and pivot flange 6 are sequentially coaxially arranged between two locating piece 2-1, and the tension flange 4 is arranged on one-level sun gear In the built-in centre bore 7-1 of tooth set 7, the locating flange 5 is arranged in the positioning hole 7-2 of one-level solar wheeling tooth set 7, the branch Staying orchid 6 is arranged in one-level solar wheeling tooth set 7 on the end face away from lapping gears 3 and pivot flange 6 is mutually adjacent to the end face, The lapping gears 3 are external gear, and the inner toothed surface that the outer flank of tooth of the lapping gears 3 covers 7 with one-level solar wheeling tooth is equipped with, One end of the pull bar 1 is located on a locating piece 2-1, the other end of the pull bar 1 sequentially pass through lapping gears 3, Tense on flange 4, locating flange 5 and pivot flange 6, the lapping gears 3 are fixedly set on pull bar 1, and the pull bar 1 is distinguished With the spacing centre bore of the axially position centre bore, the radial positioning centre bore of locating flange 5 and pivot flange 6 that tense flange 4 It is slidably matched.
The present invention be respectively used to one-level solar wheeling tooth set 7 before nitriding with the grinding after nitriding, therefore in the two processes In, each process is required for a locating flange 5, and all leaves allowance, according to the one-level solar wheeling tooth set 7 before and after nitriding The measured value of positioning hole is contrasted, so that it is determined that removing the concrete numerical value of allowance.Present invention can apply to steam turbine and The field of milling of the spline of machine driving industry and the gear teeth of gear.
The present invention is additionally provided with ring wedge 10 and jackscrew 11, and ring wedge 10 and jackscrew 11 are installed on pull bar 1, then Pull bar 1 with ring wedge 10 and jackscrew 11 is placed on support frame 2 together, the setting of ring wedge 10 and jackscrew 11 is For adjusting relative position and fixation between lapping gears 3 and one-level solar wheeling tooth set 7.Strengthen the flexibility of the present invention.
One-level solar wheeling tooth set 7 is existing component in the present invention, and it is the object of the attrition process of the present invention.The one-level sun Gear teeth set 7 is a kind of internal tooth body, and internal tooth casing hole, built-in centre bore 7-1 and positioning hole 7-2, internal tooth are machined with successively inside it Set hole, built-in centre bore 7-1 and positioning hole 7-2 are sequentially communicated and the hole inwall in internal tooth casing hole is multiple internal splines, lapping gears 3 Each external tooth and its internal tooth casing hole in each internal spline correspond and set.
One-level solar wheeling tooth set 7 is tightened up the constraint axial movement of flange 4 in the present invention, meanwhile, one-level solar wheeling tooth covers 7 quilts Locating flange 5 constrains circumference radial motion.
Embodiment two:Illustrate present embodiment with reference to Fig. 4, the wheel face of lapping gears 3 described in present embodiment On be uniformly machined with multiple lightening holes 8 along its axial direction.
The setting of multiple lightening holes 8 is to effectively reduce lapping gears 3 weight of itself, be conducive in present embodiment Its portability moved, the aperture of lightening hole 8 is 1st/1st to six/10th of the external diameter of lapping gears 3.It is other NM Structure and annexation are identical with embodiment one.
Embodiment three:Illustrate present embodiment, present embodiment with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 Described in lapping gears 3 tooth form of external tooth be straight-tooth, the external tooth number of teeth and the one-level solar wheeling tooth of the lapping gears 3 cover 7 The internal tooth number of teeth is consistent, and the external tooth shape of the lapping gears 3 is consistent with the internal tooth shape that one-level solar wheeling tooth covers 7.
The number of teeth parameter of lapping gears 3 is consistent with the number of teeth parameter that one-level solar wheeling tooth covers 7 in present embodiment.Grinding The addendum coefficient of gear 3 is 1, and modulus M is 5, and tooth top coefficient is 0.25, and pressure angle is 20 °, and normal direction modification coefficient is 0.It is other NM structure and annexation are identical with embodiment one or two.
Embodiment four:Illustrate present embodiment with reference to Fig. 1 and Fig. 2, locating flange 5 described in present embodiment with The positioning hole 7-2 interference fits of one-level solar wheeling tooth set 7.The two relation being arranged such is in order to ensure locating flange 5 can Preferably one-level solar wheeling tooth set 7 is positioned.Other NM structures and annexation and embodiment three-phase Together.
Embodiment five:Illustrate present embodiment with reference to Fig. 1 and Fig. 2, pull bar 1 described in present embodiment includes holding Hold set 1-1, bar body 1-2 and banking stop 1-3, the grip sleeve 1-1 and be fixedly set in bar body 1-2 close to lapping gears 3 Through hole is machined with one end, the banking stop 1-3, the banking stop 1-3 is fixedly set in bar body 1-2 close to branch by through hole One end of staying orchid 6.
Grip sleeve 1-1 is force side in present embodiment, for applying power to bar body 1-2, so that it is guaranteed that bar body 1-2 drives lapping gears 3 to realize push-and-pull campaign, banking stop 1-3 setting be it is effective spacing in order to be carried out to bar body 1-2, when When bar body 1-2 makes propulsion action, lapping gears 3 are moved under bar body 1-2 drive to be mutually adjacent to tensing flange 4, The inner toothed surface of one-level solar wheeling tooth set 7 is ground by the outer flank of tooth of lapping gears 3, now between banking stop 1-3 and pivot flange 6 With a certain distance;When bar body 1-2 makes pull-out action, lapping gears 3 are moved under bar body 1-2 drive and made Away from the action for tensing flange 4, the inner toothed surface of one-level solar wheeling tooth set 7 is ground again by its outer flank of tooth, when banking stop 1-3 with When pivot flange 6 is mutually adjacent to, bar body 1-2 stop motions, a second periodicity abrasive action terminates.Other NM structures and Annexation is identical with embodiment one or four.
Embodiment six:Present embodiment is institute in the further restriction of embodiment five, present embodiment It is the gear that CrWMn materials are made to state lapping gears 3.The lapping gears 3 being arranged such in present embodiment ensure that grinding Effect and the service life that its own can be extended, and it is durable in process of lapping, wear extent is low, is conducive to persistently using.It is other NM structure and annexation are identical with embodiment five.
Embodiment seven:Illustrate that specific purpose tool also includes in present embodiment, present embodiment with reference to Fig. 1 and Fig. 2 Multiple screws 9, are detachably connected between the locating flange 5 and pivot flange 6 by multiple screws 9.The connection of multiple screws 9 Effect stability and directly, be easy to materials, advantageously reduce manufacturing cost.Other NM structures and annexation and specific reality Apply mode one or six identical.
The course of work:
Support frame 2 is placed on workbench first, then multiple screws 9 have connected locating flange 5 and pivot flange 6 Finish, then lapping gears 3 and pivot flange 6 are sleeved on pull bar 1 successively, with tension flange 4, locating flange 5 and pivot flange 6 Fixed one-level solar wheeling tooth set 7 to be ground, is secondly simultaneously arranged on ring wedge 10 and jackscrew 11 on pull bar 1, finally will They are placed on support frame 2 together, adjust lapping gears 3 using ring wedge 10 and jackscrew 11 and one-level solar wheeling tooth covers 7 Relative position and fixation.Moved by the axial direction for pulling pull bar 1 to drive lapping gears 3 to cover 7 along one-level solar wheeling tooth, from And one-level solar wheeling tooth set 7 is ground, reach the purpose of the grinding flank of tooth.

Claims (7)

1. a kind of specific purpose tool for being used to grind one-level solar wheeling tooth set, it is characterised in that:Specific purpose tool includes pull bar (1), branch Support (2), lapping gears (3), tension flange (4), locating flange (5) and pivot flange (6), support frame as described above (2) include bottom Seat (2-2) and two locating pieces (2-1), the base (2-2) are horizontally disposed with, and two locating pieces (2-1) are disposed in parallel in base On (2-2) and each locating piece (2-1) is fixedly connected with base (2-2), the lapping gears (3), tense flange (4), position Flange (5), one-level solar wheeling tooth set (7) and pivot flange (6) are sequentially coaxially arranged between two locating pieces (2-1), described Tense flange (4) to be arranged in the built-in centre bore (7-1) of one-level solar wheeling tooth set (7), the locating flange (5) is arranged on one In the positioning hole (7-2) of level solar wheeling tooth set (7), the pivot flange (6) is arranged in one-level solar wheeling tooth set (7) remote grind On the end face of roll flute wheel (3) and pivot flange (6) is mutually adjacent to the end face, the lapping gears (3) are external gear, the grinding The inner toothed surface of the outer flank of tooth of gear (3) and one-level solar wheeling tooth set (7) is equipped with, and one end of the pull bar (1) is located in one On the individual locating piece (2-1), the other end of the pull bar (1) sequentially passes through lapping gears (3), tenses flange (4), positioning mode On blue (5) and pivot flange (6), the lapping gears (3) are fixedly set on pull bar (1), the pull bar (1) respectively with tension The spacing centre bore of the axially position centre bore of flange (4), the radial positioning centre bore of locating flange (5) and pivot flange (6) It is slidably matched.
2. the specific purpose tool according to claim 1 for being used to grind one-level solar wheeling tooth set, it is characterised in that:The grinding On the wheel face of gear (3) multiple lightening holes (8) are uniformly machined with along its axial direction.
3. the specific purpose tool according to claim 1 or 2 for being used to grind one-level solar wheeling tooth set, it is characterised in that:It is described The tooth form of external tooth is straight-tooth, the external tooth number of teeth and the one-level solar wheeling tooth set (7) of the lapping gears (3) in lapping gears (3) The internal tooth number of teeth is consistent, and the external tooth shape of the lapping gears (3) is consistent with the internal tooth shape of one-level solar wheeling tooth set (7).
4. the specific purpose tool according to claim 3 for being used to grind one-level solar wheeling tooth set, it is characterised in that:The positioning Positioning hole (7-2) interference fits of flange (5) and one-level solar wheeling tooth set (7).
5. being used for according to claim 1 or 4 grinds the specific purpose tool of one-level solar wheeling tooth set, it is characterised in that:It is described Pull bar (1) includes grip sleeve (1-1), bar body (1-2) and banking stop (1-3), and the grip sleeve (1-1) is fixedly set in bar sheet Body (1-2) is machined with through hole on one end of lapping gears (3), the banking stop (1-3), and the banking stop (1-3) passes through Through hole is fixedly set in bar body (1-2) close to one end of pivot flange (6).
6. the specific purpose tool according to claim 5 for being used to grind one-level solar wheeling tooth set, it is characterised in that:The grinding Gear (3) is the gear that CrWMn materials are made.
7. being used for according to claim 1 or 6 grinds the specific purpose tool of one-level solar wheeling tooth set, it is characterised in that:It is described Specific purpose tool also includes multiple screws (9), removable by multiple screws (9) between the locating flange (5) and pivot flange (6) Unload connection.
CN201610153170.2A 2016-03-17 2016-03-17 Specific purpose tool for grinding one-level solar wheeling tooth set Active CN105710453B (en)

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Application Number Priority Date Filing Date Title
CN201610153170.2A CN105710453B (en) 2016-03-17 2016-03-17 Specific purpose tool for grinding one-level solar wheeling tooth set

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Application Number Priority Date Filing Date Title
CN201610153170.2A CN105710453B (en) 2016-03-17 2016-03-17 Specific purpose tool for grinding one-level solar wheeling tooth set

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CN105710453B true CN105710453B (en) 2017-10-24

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CN107138812B (en) * 2017-05-15 2018-12-14 东莞市鑫拓智能机械科技有限公司 A kind of harmonic reducer flexible wheel, firm gear conversion engagement pairing beveller
CN111972061B (en) * 2020-07-30 2025-03-07 汤原县振华机械制造有限公司 A composite gear reduction box and a ridge-building machine including the reduction box
CN115889900A (en) * 2022-10-31 2023-04-04 西北工业集团有限公司 Harmonic reducer ware flexbile gear surface quality hoisting device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317306A1 (en) * 1993-05-26 1993-10-28 Kapp Werkzeugmasch Honing process and machine for finishing gear teeth - has abrasive gear hone in mesh with workpiece gear and electronically coupled spindles so that pitch errors in gear can be measured and corrected by modifying relative speeds
CN201618894U (en) * 2010-02-08 2010-11-03 马鞍山方圆回转支承股份有限公司 Jig for gear shaping of rotary bearing internal gears
CN201824029U (en) * 2010-07-29 2011-05-11 四川省内江庆隆机床有限公司 Inner tooth inserting tooling
CN102198583A (en) * 2010-03-25 2011-09-28 上海航发机械有限公司 Inner gear machining method and special gear shaping clamp
CN102271851A (en) * 2009-01-09 2011-12-07 三菱重工业株式会社 Internal gear processing method
CN102528175A (en) * 2011-12-12 2012-07-04 国营长空精密机械制造公司 Device and method for accurately machining internal-gear parts
CN203356770U (en) * 2013-06-25 2013-12-25 綦江长风齿轮(集团)有限公司 Gear shaping fixture used for internal ring gear
DE102013011941A1 (en) * 2013-07-17 2015-01-22 The Gleason Works Method and device for fine machining a toothed workpiece and program for its control
CN204413852U (en) * 2015-02-02 2015-06-24 东北特钢集团山东鹰轮机械有限公司 A kind of grinding out fixture of gear ring

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003094247A (en) * 2001-09-21 2003-04-03 Denso Corp Method for machining gear flank

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317306A1 (en) * 1993-05-26 1993-10-28 Kapp Werkzeugmasch Honing process and machine for finishing gear teeth - has abrasive gear hone in mesh with workpiece gear and electronically coupled spindles so that pitch errors in gear can be measured and corrected by modifying relative speeds
CN102271851A (en) * 2009-01-09 2011-12-07 三菱重工业株式会社 Internal gear processing method
CN201618894U (en) * 2010-02-08 2010-11-03 马鞍山方圆回转支承股份有限公司 Jig for gear shaping of rotary bearing internal gears
CN102198583A (en) * 2010-03-25 2011-09-28 上海航发机械有限公司 Inner gear machining method and special gear shaping clamp
CN201824029U (en) * 2010-07-29 2011-05-11 四川省内江庆隆机床有限公司 Inner tooth inserting tooling
CN102528175A (en) * 2011-12-12 2012-07-04 国营长空精密机械制造公司 Device and method for accurately machining internal-gear parts
CN203356770U (en) * 2013-06-25 2013-12-25 綦江长风齿轮(集团)有限公司 Gear shaping fixture used for internal ring gear
DE102013011941A1 (en) * 2013-07-17 2015-01-22 The Gleason Works Method and device for fine machining a toothed workpiece and program for its control
CN204413852U (en) * 2015-02-02 2015-06-24 东北特钢集团山东鹰轮机械有限公司 A kind of grinding out fixture of gear ring

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Effective date of registration: 20230306

Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province

Patentee after: HARBIN TURBINE Co.,Ltd.

Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD.

Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin

Patentee before: HARBIN TURBINE Co.,Ltd.