CN106763666A - A kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism - Google Patents

A kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism Download PDF

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Publication number
CN106763666A
CN106763666A CN201611181282.5A CN201611181282A CN106763666A CN 106763666 A CN106763666 A CN 106763666A CN 201611181282 A CN201611181282 A CN 201611181282A CN 106763666 A CN106763666 A CN 106763666A
Authority
CN
China
Prior art keywords
end cap
cam
eccentric bushing
camshaft
taper roll
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
CN201611181282.5A
Other languages
Chinese (zh)
Inventor
姚伍军
朱美玲
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.)
HUNAN NANFANG AVIATION HIGH PRECISION TRANSMISSION CO Ltd
Original Assignee
HUNAN NANFANG AVIATION HIGH PRECISION TRANSMISSION 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 HUNAN NANFANG AVIATION HIGH PRECISION TRANSMISSION CO Ltd filed Critical HUNAN NANFANG AVIATION HIGH PRECISION TRANSMISSION CO Ltd
Priority to CN201611181282.5A priority Critical patent/CN106763666A/en
Publication of CN106763666A publication Critical patent/CN106763666A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022Adjustment of gear shafts or bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022Adjustment of gear shafts or bearings
    • F16H2057/0221Axial adjustment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022Adjustment of gear shafts or bearings
    • F16H2057/0222Lateral adjustment
    • F16H2057/0224Lateral adjustment using eccentric bushes

Abstract

The present invention relates to a kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism, including casing, camshaft, cam, roller, taper roll bearing, O-shaped rubber seal, space collar, lip-type packing, the interference setting-up eccentricity set in the left and right sides bearing saddle bore of casing, eccentric bushing it is cylindrical with boss, play axial limiting.The mounting and adjusting end cap in the eccentric bushing of left side, the mounting and adjusting open end cap in the eccentric bushing of right side, taper roll bearing is arranged between eccentric bushing and two axle journals of camshaft, the outer surface of adjustment end cap and the not prominent casing of adjustment open end cap.The present invention possesses simple structure, without mode connects for screw, the advantages of low cost of manufacture, saving axially mounted space, overall to cam and taper roll bearing can be adjusted axially, the gap between roller and cam can be indirectly removed again, error is reduced, increases indexing accuracy.

Description

A kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism
Technical field
It is the present invention relates to gearbox drive technical field more particularly to a kind of without mode connects for screw and with eccentric adjustable mechanism Worm-cam reduction box.
Background technology
Worm-cam reduction box is that a kind of input shaft turns around, and output shaft turns 1/n(N is integer)The equipment of circle, in order to carry In high precision, together with cam needs are brought into close contact with roller, but can not kill, in case frictional force between the two is excessive, When roller runs, part of damage, due to the error for fabricating, it is difficult to ensure that the tolerance of each part all meets the requirements, Duo Geling Part is combined, and will also result in error accumulation, in order to eliminate error, removes the gap between roller and cam, and need to use can The structure of cam position is adjusted, by cam fine setting in all directions, itself and roller is fit together.
At present, the worm-cam reduction box of close structural is by screw 1, taper roll bearing 2, end cap 3, camshaft 4, O-shaped The parts such as rubber seal 5, cam 6, space collar 7, open end cap 8, lip-type packing 9, casing 10, roller 11 are constituted, end Lid 3 and open end cap 8 are used for positioning cone roller bearing 2, determine that circular cone is rolled by the thickness of match grinding end cap and open end cap The clearance of sub- bearing, meanwhile, the thickness of end cap and open end cap after part is measured, can be finely tuned come match grinding by dimension chain, Adjustable taper roll bearing 2, camshaft 4 and the overall side-play amount in axial direction of cam 6, make cam be laterally moved to Theoretical Design position Put, but this structure cannot realize cam radial direction fine setting, it is impossible to ensure that cam and roller 11 are fitted by the square, it is impossible to eliminate due to The error that manufacture and assembling are caused, causes indexing accuracy not high, and match grinding is not suitable for batch production.And due to end cap, open Mouth end cap and screw protrusion casing, cause the installing space of casing to increase.Therefore, prior art has the following disadvantages:1. connect Screw and end cap quantity are excessive, cause manufacturing cost to increase;2. attachment screw and end cap protrusion casing, cause reduction box to install empty Between it is excessive, install inconvenience;3. the gap between reduction box roller and cam cannot be eliminated, causes indexing accuracy not high.
The content of the invention
It is an object of the invention to overcome drawbacks described above, there is provided a kind of worm screw without mode connects for screw and with eccentric adjustable mechanism Cam deceleration case, had both solved the problems, such as gapless compress engagement between reduction box roller and cam;Solve again because of connection spiral shell Nail and end cap protrude casing, cause reduction box to install the problem of inconvenience.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that:One kind is without mode connects for screw and band eccentric adjusting The worm-cam reduction box of mechanism, including casing 10, camshaft 4, cam 6, roller 11, taper roll bearing 2, O-shaped rubber are close Seal 5, space collar 7, lip-type packing 9, wherein, taper roll bearing 2 is arranged on two axle journals of camshaft 4, and cam 6 is pacified On camshaft 4, and engaged with the compression of roller 11, space collar 7 is arranged between camshaft 4 and the inner ring of taper roll bearing 2, Setting-up eccentricity set 1 is coordinated using gap in the left and right sides bearing saddle bore of casing 10, eccentric bushing 1 it is cylindrical with boss, Mounting and adjusting end cap 3 in left side eccentric bushing 1, the mounting and adjusting open end cap 8 in right side eccentric bushing 1, taper roll bearing 2 is installed Between eccentric bushing 1 and two axle journals of camshaft 4, the outside table of adjustment end cap 3 and the not prominent casing 10 of adjustment open end cap 8 Face.
Preferably, coordinated using screw thread between eccentric bushing 1 and adjustment end cap 3 and adjustment open end cap 8 and coupled.
The beneficial effect that the present invention possesses:1. the axial location of cam and radial position can be adjusted simultaneously, is adjusted End cap and the paired of adjustment open end cap use, and the taper roll bearing of mounted in pairs can be positioned and end-play is adjusted It is whole, again can be overall to cam and taper roll bearing to be adjusted axially in the case where clearance requirement is met;By rotation Eccentric bushing, the gap between removal roller and cam, reduces error indirectly, increases indexing accuracy.2. without mode connects for screw, knot is simplified Structure, reduces number of parts, reduces cost;3. axially mounted space is saved.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of prior art reduction box.
In figure:1- screws, 2- taper roll bearings, 3- end caps, 4- camshafts, the O-shaped rubber seal of 5-, 6- cams, 7- Space collar, 8- open end caps, 9- lip-type packings, 10- casings, 11- rollers.
Fig. 2 is the structure composition schematic diagram of reduction box of the present invention.
In figure:1- eccentric bushings, 2- taper roll bearings, 3- adjustment end caps, 4- camshafts, 5-O type rubber seal, 6- is convex Wheel, 7- space collars, 8- adjustment open end caps, 9- lip-type packings, 10- casings, 11- rollers.
Specific embodiment
Specific embodiment of the invention is described further below in conjunction with the accompanying drawings.
As shown in Fig. 1~2, a kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism, including casing 10th, camshaft 4, cam 6, roller 11, taper roll bearing 2, O-shaped rubber seal 5, space collar 7, lip-type packing 9, its In, taper roll bearing 2 is arranged on two axle journals of camshaft 4, and cam 6 is arranged on camshaft 4, and is compressed with roller 11 Engagement, space collar 7 is arranged between camshaft 4 and the inner ring of taper roll bearing 2, in the left and right sides bearing saddle bore of casing 10 Interference setting-up eccentricity set 1, eccentric bushing 1 it is cylindrical with boss, play axial limiting.Installed in eccentric bushing 1 in left side and adjusted Whole end cap 3, the mounting and adjusting open end cap 8 in right side eccentric bushing 1, taper roll bearing 2 is arranged on eccentric bushing 1 and camshaft 4 Two axle journals between, adjustment end cap 3 and adjustment open end cap 8 protrude casing 10 outer surface.
Coordinated using screw thread between eccentric bushing 1 and adjustment end cap 3 and adjustment open end cap 8 and coupled, the circle of mounted in pairs Taper roller bearing 2 is used to bear external load and locating shaft and cam, and two eccentric bushings 1 are used to support taper roll bearing, profit With the hole rotating eccentricity set on eccentric bushing, while the radial position of adjustment axis 4 and cam 6, adjustment end cap 3 and adjustment open end cap 8 are used to fix the axial location of taper roll bearing, while adjusting the axial location of camshaft and cam.By adjusting cam Radial position, makes cam press tightly against roller, eliminates gap, improves indexing accuracy.
By that using end cap and adjustment open end cap is adjusted, can be determined the taper roll bearing of mounted in pairs in pairs Position and end-play adjustment, again can be overall to cam and taper roll bearing to enter axially in the case where clearance requirement is met Row adjustment.By rotating adjustment end cap and adjustment open end cap, the fine thread using it between eccentric bushing axially enter Move back, accurate adjustment can be carried out to the amount of feeding while sealing is ensured, it is ensured that the axial position of taper roll bearing clearance and cam Put precision.By rotating eccentricity set, the gap between removal roller and cam, reduces error indirectly, increases indexing accuracy.
When eccentric bushing is adjusted, while frock is inserted in 2 holes of eccentric bushing, rotating eccentricity set, makes eccentric bushing together Maximum eccentric location following change, and then change the gap of the radial position of axle and cam, adjustment cam and roller.In regulation During eccentric bushing, 360 ° of offset can be back and forth adjusted, as long as rotating eccentricity set, you can while adjusting between cam and roller Radial clearance, eliminates error.
The present invention is not limited to above-mentioned implementation method, in the ken that art those of ordinary skill possesses It is interior, can also be made a variety of changes on the premise of present inventive concept and principle is not departed from.

Claims (2)

1. a kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism, including casing(10), camshaft(4)、 Cam(6), roller(11), taper roll bearing(2), O-shaped rubber seal(5), space collar(7), lip-type packing(9), its In, taper roll bearing(2)Installed in camshaft(4)Two axle journals on, cam(6)Installed in camshaft(4)On, and with rolling Son(11)Compress engagement, space collar(7)Installed in camshaft(4)With taper roll bearing(2)Between inner ring, it is characterised in that: In the casing(10)Left and right sides bearing saddle bore in using gap coordinate setting-up eccentricity set(1), the eccentric bushing(1)It is outer Round belt has boss, in the left side eccentric bushing(1)Interior mounting and adjusting end cap(3), in the right side eccentric bushing(1)Interior mounting and adjusting Open end cap(8), the taper roll bearing(2)Installed in eccentric bushing(1)And camshaft(4)Two axle journals between, it is described Adjustment end cap(3)With adjustment open end cap(8)Do not protrude casing(10)Outer surface.
2. the worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism according to claim 1, its feature exists In:The eccentric bushing(1)With adjustment end cap(3)With adjustment open end cap(8)Between using screw thread coordinate connection.
CN201611181282.5A 2016-12-20 2016-12-20 A kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism Pending CN106763666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611181282.5A CN106763666A (en) 2016-12-20 2016-12-20 A kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611181282.5A CN106763666A (en) 2016-12-20 2016-12-20 A kind of worm-cam reduction box without mode connects for screw and with eccentric adjustable mechanism

Publications (1)

Publication Number Publication Date
CN106763666A true CN106763666A (en) 2017-05-31

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Family Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108468777A (en) * 2018-04-27 2018-08-31 邱垂财 Roller cam mechanism
CN108662092A (en) * 2018-06-29 2018-10-16 汽解放汽车有限公司 A kind of electricity drive two grades of speed reducer assemblies of bridge
CN108982147A (en) * 2018-08-06 2018-12-11 中国地质大学(武汉) A kind of plunger type vibration revolution sampler drill based on spatial cam
CN110005782A (en) * 2019-04-17 2019-07-12 艾德斯汽车电机无锡有限公司 Magnetic gear-shift mechanism structure
CN114184394A (en) * 2021-12-31 2022-03-15 重庆理工大学 Target object carrying platform vehicle for vulnerable traffic participants

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2092633U (en) * 1991-02-24 1992-01-08 常州电池厂 Worm cam drive
US5097718A (en) * 1989-11-06 1992-03-24 Tsubakimoto Chain Co. Input shaft mounting structure in intermittent driving apparatus
EP1065132A1 (en) * 1999-06-28 2001-01-03 Koyo Seiko Co., Ltd. Electric power steering apparatus
CN2839735Y (en) * 2005-09-30 2006-11-22 广州市番禺鑫泰科技有限公司 The worm-cam retarder
CN202560966U (en) * 2012-03-19 2012-11-28 山东大学 Ball type globoidal cam indexing mechanism
CN104930126A (en) * 2015-05-11 2015-09-23 江阴尚爵机械制造有限公司 Adjustable worm driving device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097718A (en) * 1989-11-06 1992-03-24 Tsubakimoto Chain Co. Input shaft mounting structure in intermittent driving apparatus
CN2092633U (en) * 1991-02-24 1992-01-08 常州电池厂 Worm cam drive
EP1065132A1 (en) * 1999-06-28 2001-01-03 Koyo Seiko Co., Ltd. Electric power steering apparatus
CN2839735Y (en) * 2005-09-30 2006-11-22 广州市番禺鑫泰科技有限公司 The worm-cam retarder
CN202560966U (en) * 2012-03-19 2012-11-28 山东大学 Ball type globoidal cam indexing mechanism
CN104930126A (en) * 2015-05-11 2015-09-23 江阴尚爵机械制造有限公司 Adjustable worm driving device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108468777A (en) * 2018-04-27 2018-08-31 邱垂财 Roller cam mechanism
CN108468777B (en) * 2018-04-27 2022-01-14 邱垂财 Roller cam mechanism
CN108662092A (en) * 2018-06-29 2018-10-16 汽解放汽车有限公司 A kind of electricity drive two grades of speed reducer assemblies of bridge
CN108982147A (en) * 2018-08-06 2018-12-11 中国地质大学(武汉) A kind of plunger type vibration revolution sampler drill based on spatial cam
CN108982147B (en) * 2018-08-06 2024-02-27 中国地质大学(武汉) Plunger type vibration rotary sampling drilling machine based on space cam mechanism
CN110005782A (en) * 2019-04-17 2019-07-12 艾德斯汽车电机无锡有限公司 Magnetic gear-shift mechanism structure
CN114184394A (en) * 2021-12-31 2022-03-15 重庆理工大学 Target object carrying platform vehicle for vulnerable traffic participants

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Application publication date: 20170531

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