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CN103758993B - A kind of cam gearshift of small gear-box - Google Patents

A kind of cam gearshift of small gear-box Download PDF

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Publication number
CN103758993B
CN103758993B CN201410015044.1A CN201410015044A CN103758993B CN 103758993 B CN103758993 B CN 103758993B CN 201410015044 A CN201410015044 A CN 201410015044A CN 103758993 B CN103758993 B CN 103758993B
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CN
China
Prior art keywords
shaft
bevel gear
cylindrical cam
shift fork
pinion
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
CN201410015044.1A
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Chinese (zh)
Other versions
CN103758993A (en
Inventor
姬江涛
何亚凯
邓明俐
贾世通
贺智涛
杜新武
倪利伟
郑治华
杜蒙蒙
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.)
Guangping Huihe Casting Co., Ltd
Original Assignee
Henan University of Science and Technology
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Publication date
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Priority to CN201410015044.1A priority Critical patent/CN103758993B/en
Publication of CN103758993A publication Critical patent/CN103758993A/en
Application granted granted Critical
Publication of CN103758993B publication Critical patent/CN103758993B/en
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Classifications

    • 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
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/04—Ratio selector apparatus
    • F16H59/041—Ratio selector apparatus consisting of a final output mechanism, e.g. ratio selector being directly linked to a shiftfork
    • 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
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • 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
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

A kind of cam gearshift of small gear-box, comprise intermeshing bevel gear wheel and bevel pinion, large bevel gear shaft is connected with transmission shaft, pinion shaft is output shaft, also be provided with cylindrical cam, declutch shift shaft, shift fork, splined shaft and the change gear be arranged on splined shaft, described transmission shaft and the company of large bevel gear shaft are extremely provided with multiple locating slot, the rotation angle of bevel gear wheel is controlled by the quantity of adjustment large bevel gear shaft rotating position groove, described pinion shaft is fixed with cylindrical cam, cylindrical cam and pinion shaft synchronous axial system, declutch shift shaft is arranged with shift fork, one end of shift fork is positioned at cylindrical cam groove, the other end is connected on change gear.This invention simplifies operating device makes it be moved the spatial rotation become around self by original space, not only reduce operating space and make the layout of complete machine more reasonable, and workman is more comfortable to gearshift operation.

Description

A kind of cam gearshift of small gear-box
Technical field
The present invention relates to the cam gearshift of a kind of small gear-box gearshift, particularly a kind of small gear-box.
Background technique
Gearbox is the important component part in industrial machinery, and in practice, gearbox needs gear shift mechanism to realize speed changing effect, and this mechanism can control gearbox and realize predetermined running effect.
Along with the progress of technology, existing gearbox shifting mechanism also progressively develops into diversified trend, and what have larger difference with traditional manual shift speed change mechanism is stepless change and automatic speed changing.Advanced gear affects by self structure and is not suitable in less speed changer, and the complex structure of this gearshift, manufacturing cost costly determine, and it is not suitable for simply, less speed changer.Manual gear shift mechanism has that structure is simple, low cost and other advantages is widely used in common mechanical, but existing manual gear shift mechanism occupies very large space due to its operative section, not only have impact on the coordination of overall machinery, but also the space of intruder's miscellaneous part is arranged.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of cam gearshift of small gear-box, which simplify operating device makes it be moved the spatial rotation become around self by original space, not only reducing operating space makes the layout of complete machine more reasonable, and workman is more comfortable to gearshift operation.
The technical solution adopted in the present invention is: a kind of cam gearshift of small gear-box, comprise intermeshing bevel gear wheel and bevel pinion, large bevel gear shaft is connected with transmission shaft, pinion shaft is output shaft, also be provided with cylindrical cam, declutch shift shaft, shift fork, splined shaft and the change gear be arranged on splined shaft, described transmission shaft and the company of large bevel gear shaft are extremely provided with multiple locating slot, the rotation angle of bevel gear wheel is controlled by the quantity of adjustment large bevel gear shaft rotating position groove, described pinion shaft is fixed with cylindrical cam, cylindrical cam and pinion shaft synchronous axial system, declutch shift shaft is arranged with shift fork, one end of shift fork is positioned at cylindrical cam groove, the other end is connected on change gear.
Described shift fork is provided with pilot hole, and this pilot hole and declutch shift shaft are Spielpassung, and the outer peripheral surface of declutch shift shaft is arranged with two guiding grooves, and position correspondence in the pilot hole of shift fork of corresponding guiding groove is provided with limiting stopper.
Described end part of driving shaft is also connected with operating grip.
The invention has the beneficial effects as follows: the present invention utilizes cylindrical cam self space structural feature to realize gearshift.Cylindrical cam by the rotation implementation space phase place change of self, thus drives shift fork to realize the change of displacement by cylindrical cam groove; This cam mechanism simplifies operating device makes it be moved the spatial rotation become around self by original space, and workman is more comfortable to gearshift operation, reduces operating space and makes the layout of complete machine more reasonable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation that shift fork is connected with declutch shift shaft.
Reference character: 1, bevel gear wheel, 2, large bevel gear shaft, 3, bevel pinion, 4, small coning gear shaft, 5, transmission shaft, 6, locating slot, 7, cylindrical cam, 701, cylindrical cam groove, 8, declutch shift shaft, 801, guiding groove, 9, shift fork, 901, pilot hole, 902, limiting stopper, 10, splined shaft, 11, power shift gear.
Embodiment
Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in the figure, a kind of cam gearshift of small gear-box, comprise intermeshing bevel gear wheel 1 and bevel pinion 3, large bevel gear shaft 2 is connected with transmission shaft 5, pinion shaft 4 is output shaft, also be provided with cylindrical cam 7, declutch shift shaft 8, shift fork 9, splined shaft 10 and the change gear 11 be arranged on splined shaft, described pinion shaft 4 is fixed with cylindrical cam 7, cylindrical cam 7 and pinion shaft 4 synchronous axial system, declutch shift shaft 8 is provided with shift fork 9, shift fork 9 can slide at declutch shift shaft 8, one end of shift fork 9 is positioned at cylindrical cam groove 701, the other end is connected on change gear 11, the present invention, described transmission shaft 5 is extremely provided with multiple locating slot 6 with the company of large bevel gear shaft 2, the rotation angle of bevel gear wheel is controlled by the quantity of adjustment large bevel gear shaft rotating position groove, control each drive range accordingly, wherein the number of locating slot is corresponding with gear number, change the number of locating slot and the control stroke correspondingly changing cam path can increase and decrease the gear number of gearbox, can attended operation handle at end part of driving shaft, workman realizes bevel gear wheel by handle with sleeve and rotates, and drive small coning gear shaft and weld the cylindrical cam rotation on it, cylindrical cam drives shift fork to slide on declutch shift shaft, resulting belt is moved power shift gear and is moved on splined shaft, realizes gearshift.
The present invention, further optimization this programme, described shift fork 9 is also provided with pilot hole 901, this pilot hole 901 and declutch shift shaft 8 are in Spielpassung, the outer peripheral surface of declutch shift shaft 8 is arranged with two guiding grooves 801, position correspondence in the pilot hole 901 of shift fork of corresponding guiding groove 801 is provided with limiting stopper 902, when shift fork 9 is on declutch shift shaft 8 in sliding process, limiting stopper 902 is positioned at guiding groove 801 and direction along guiding groove 801 is moved, by the restriction of limiting stopper 902, shift fork can not be rotated, therefore in shift process, avoid the abnormal vibration of shift fork, improve the accuracy of gear shift operation.

Claims (2)

1. the cam gearshift of a small gear-box, comprise intermeshing bevel gear wheel (1) and bevel pinion (3), large bevel gear shaft (2) is connected with transmission shaft (5), pinion shaft (4) is output shaft, it is characterized in that: be also provided with cylindrical cam (7), declutch shift shaft (8), shift fork (9), splined shaft (10) and the change gear (11) be arranged on splined shaft (10), described transmission shaft (5) is provided with multiple locating slot (6) with the connecting end of large bevel gear shaft (2), the rotation angle of bevel gear wheel (1) is controlled by the quantity of adjustment large bevel gear shaft (2) rotating position groove (6), described pinion shaft (4) is welded with cylindrical cam (7), cylindrical cam (7) and pinion shaft (4) synchronous axial system, declutch shift shaft (8) is arranged with shift fork (9), one end of shift fork (9) is positioned at cylindrical cam groove (701), the other end is connected on change gear (11),
Described shift fork (9) is provided with pilot hole (901), this pilot hole (901) and declutch shift shaft (8) are in Spielpassung, the outer peripheral surface of declutch shift shaft (8) is arranged with two guiding grooves (801), and position correspondence in the pilot hole (901) of shift fork of corresponding guiding groove (801) is provided with limiting stopper (902).
2. the cam gearshift of a kind of small gear-box according to claim 1, is characterized in that: described transmission shaft (5) end is also connected with operating grip.
CN201410015044.1A 2014-01-14 2014-01-14 A kind of cam gearshift of small gear-box Active CN103758993B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410015044.1A CN103758993B (en) 2014-01-14 2014-01-14 A kind of cam gearshift of small gear-box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410015044.1A CN103758993B (en) 2014-01-14 2014-01-14 A kind of cam gearshift of small gear-box

Publications (2)

Publication Number Publication Date
CN103758993A CN103758993A (en) 2014-04-30
CN103758993B true CN103758993B (en) 2016-02-10

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286821A (en) * 2015-05-29 2017-01-04 安徽赛威机械有限公司 A kind of shifting-fork gear-shifting assembly
CN108331893A (en) * 2017-01-20 2018-07-27 北京华擎变速器工程技术研究院 Motorcar electric vehicle bicycle use cylinder speed changer
CN110965192A (en) * 2019-11-07 2020-04-07 苏州圣龙丝织绣品有限公司 Let-off machine and clutch device thereof
CN110967355B (en) * 2019-12-31 2022-08-16 桂林理工大学 Movable type steel bar sleeve grouting fullness detection device
CN112659889A (en) * 2020-12-23 2021-04-16 浙江吉利控股集团有限公司 Coaxial pure electric vehicle power system with power disconnection function and vehicle
CN113236770A (en) * 2021-04-30 2021-08-10 华南理工大学 Gear shifting device and transportation equipment comprising same
CN115992881A (en) * 2023-02-02 2023-04-21 特百佳动力科技股份有限公司 Gear shifting mechanism, transmission and vehicle
CN117072667A (en) * 2023-10-18 2023-11-17 宁波东力传动设备有限公司 Novel speed reducer shifting fork gear shifting device and assembly method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1046793A (en) * 1989-04-24 1990-11-07 易通公司 Single shaft shifting mechanism
EP0786610A2 (en) * 1996-01-29 1997-07-30 Ford Motor Company Shift device for a manual transmission
CN1172034A (en) * 1996-04-22 1998-02-04 易通公司 Single shaft shifting mechanism
CN2514174Y (en) * 2001-09-20 2002-10-02 张卫东 Double stage driving stepless speed change device
EP1533083A2 (en) * 2003-11-24 2005-05-25 ITW Befestigungssysteme GmbH Rotary selector switch
CN202349182U (en) * 2011-11-22 2012-07-25 河南科技大学 Cam type gear selection and shifting mechanism
CN203670738U (en) * 2014-01-14 2014-06-25 河南科技大学 Cam gear-shifting mechanism for small gearbox

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Publication number Priority date Publication date Assignee Title
US5562011A (en) * 1995-04-06 1996-10-08 Ford Motor Company Cam actuated single rail manual transmission
FR2803890B1 (en) * 2000-01-14 2002-03-15 Renault CONTROL BARREL FOR GEARBOX AND GEARBOX EQUIPPED WITH SUCH A BARREL
CN2466035Y (en) * 2001-01-17 2001-12-19 李洪斌 External front and reserse gear shaft transmission for motor-tricycle
DE102007058922B3 (en) * 2007-12-05 2009-06-18 Zf Friedrichshafen Ag Actuating device with link shaft
FR2966536B1 (en) * 2010-10-25 2012-10-26 France Reducteurs TRANSMISSION MECHANISM HOUSING, IN PARTICULAR FOR TRANSMISSION BETWEEN A PRIMARY MOTOR SHAFT AND AN OUTPUT SHAFT
CN202732862U (en) * 2012-07-17 2013-02-13 福建尚锟齿轮箱制造有限公司 Transmission box

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1046793A (en) * 1989-04-24 1990-11-07 易通公司 Single shaft shifting mechanism
EP0786610A2 (en) * 1996-01-29 1997-07-30 Ford Motor Company Shift device for a manual transmission
CN1172034A (en) * 1996-04-22 1998-02-04 易通公司 Single shaft shifting mechanism
CN2514174Y (en) * 2001-09-20 2002-10-02 张卫东 Double stage driving stepless speed change device
EP1533083A2 (en) * 2003-11-24 2005-05-25 ITW Befestigungssysteme GmbH Rotary selector switch
CN202349182U (en) * 2011-11-22 2012-07-25 河南科技大学 Cam type gear selection and shifting mechanism
CN203670738U (en) * 2014-01-14 2014-06-25 河南科技大学 Cam gear-shifting mechanism for small gearbox

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Effective date of registration: 20191218

Address after: 057650 Guangping Zhen Dong Meng Gu Cun Bei, Guangping County, Handan City, Hebei Province

Patentee after: Guangping Huihe Casting Co., Ltd

Address before: 471000 Xiyuan Road, Jianxi District, Henan, No. 48, No.

Patentee before: Henan University of Science and Technology