CN103758993A - Cam gear-shifting mechanism for small gearbox - Google Patents

Cam gear-shifting mechanism for small gearbox Download PDF

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Publication number
CN103758993A
CN103758993A CN201410015044.1A CN201410015044A CN103758993A CN 103758993 A CN103758993 A CN 103758993A CN 201410015044 A CN201410015044 A CN 201410015044A CN 103758993 A CN103758993 A CN 103758993A
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CN
China
Prior art keywords
shaft
shift fork
shift
bevel gear
gear
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.)
Granted
Application number
CN201410015044.1A
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Chinese (zh)
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CN103758993B (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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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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    • 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 cam gear-shifting mechanism for a small gearbox comprises a bevel gear wheel and a bevel pinion meshing with each other and further is provided with a cylindrical cam, a shift fork lever, a shift fork, a spline shaft and a shift gear. The bevel gear wheel is connected with a drive shaft, a bevel pinion shaft is used as an output shaft, and the shift gear is arranged on the spline shaft. A plurality of positioning slots are arranged at the end of the drive shaft connected with a bevel gear wheel shaft, so that the rotation angle of the bevel gear wheel is controlled by adjusting quantity of the rotation positioning slots on the bevel gear wheel. The cylindrical cam is fixedly arranged on the bevel pinion shaft and rotates with the bevel pinion shaft synchronously. The shift fork is sleeved on the shift fork lever, one end of the shift fork is located in a cylindrical cam groove, and the other end of the shift fork is connected to the shift gear. The operating mechanism simplified, the conventional spatial movement is changed into spatial rotation around itself, operating space is reduced while integral unit arrangement is more reasonable, and further, workers can operate the gear shifting mechanism comfortably.

Description

The cam gearshift that a kind of small gear-box is used
Technical field
The present invention relates to the cam gearshift that a kind of small gear-box gearshift, particularly a kind of small gear-box are used.
Background technique
Gearbox is the important component part in industrial machinery, and in practice, gearbox needs gear shift winding machine 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 is affected by self structure not to be suitable in less speed changer, and the complex structure of this gearshift, manufacturing cost are more expensive has determined that it is not suitable for simply, less speed changer.That manual gear shift mechanism has is simple in structure, low cost and other advantages is widely used in common mechanical, but existing manual gear shift mechanism is because its operative section has occupied very large space, not only affected the coordination of whole 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 the cam gearshift that a kind of small gear-box is used, it has simplified operating device makes it by original space, be moved the spatial rotation having become around self, not only dwindled operating space and made the layout of complete machine more reasonable, and workman is more comfortable to gearshift operation.
The technical solution adopted in the present invention is: the cam gearshift that a kind of small gear-box is used, 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 be arranged on the change gear on splined shaft, described transmission shaft and the company of large bevel gear shaft are extremely provided with a plurality of locating slots, by adjusting the quantity of large bevel gear shaft rotating position groove, control the rotation angle of bevel gear wheel, on described pinion shaft, be fixed with cylindrical cam, cylindrical cam is synchronizeed and is rotated with pinion shaft, on declutch shift shaft, be 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, is arranged with two guiding grooves on the outer peripheral surface of declutch shift shaft, and the position of corresponding guiding groove correspondence in the pilot hole of shift fork 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 spatial structure feature to realize gearshift.Cylindrical cam changes by the rotation implementation space phase place of self, thereby drives shift fork to realize the change of displacement by cylindrical cam groove; This cam mechanism has been simplified operating device makes it by original space, be moved the spatial rotation having become around self, and workman is more comfortable to gearshift operation, has dwindled operating space and has made 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
below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment be take technical solution of the present invention as prerequisite, provided 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, the cam gearshift that a kind of small gear-box is used, 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 be arranged on the change gear 11 on splined shaft, on described pinion shaft 4, be fixed with cylindrical cam 7, cylindrical cam 7 is synchronizeed rotation with pinion shaft 4, on declutch shift shaft 8, be 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 a plurality of locating slots 6 with the company of large bevel gear shaft 2, by adjusting the quantity of large bevel gear shaft rotating position groove, control the rotation angle of bevel gear wheel, controlling accordingly each drive range, wherein the number of locating slot is corresponding with gear number, the control stroke that changes the number of locating slot and correspondingly change 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 drives small coning gear shaft and welds the cylindrical cam rotation on it, and cylindrical cam drives shift fork to slide on declutch shift shaft, the final power shift gear that drives moves on splined shaft, realizes gearshift.
The present invention, further optimize this programme, on described shift fork 9, be also provided with pilot hole 901, this pilot hole 901 is Spielpassung with declutch shift shaft 8, on the outer peripheral surface of declutch shift shaft 8, be arranged with two guiding grooves 801, the position of corresponding guiding groove 801 is provided with limiting stopper 902 in the interior correspondence of pilot hole 901 of shift fork, when shift fork 9 is on declutch shift shaft 8 in sliding process, limiting stopper 902 is positioned at guiding groove 801 and moves along the direction of guiding groove 801, by the restriction of limiting stopper 902, shift fork can not be rotated, therefore in shift process, avoided the undesired vibration of shift fork, improve the accuracy of gear shift operation.

Claims (3)

1. the cam gearshift that small gear-box is used, 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 be arranged on the change gear (11) on splined shaft, described transmission shaft (5) is extremely provided with a plurality of locating slots (6) with the company of large bevel gear shaft (2), by adjusting the quantity of large bevel gear shaft rotating position groove, control the rotation angle of bevel gear wheel, on described pinion shaft (4), be fixed with cylindrical cam (7), cylindrical cam (7) is synchronizeed rotation with pinion shaft (4), on declutch shift shaft (8), be 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).
2. the cam gearshift that a kind of small gear-box according to claim 1 is used, it is characterized in that: described shift fork (9) is provided with pilot hole (901), this pilot hole (901) is Spielpassung with declutch shift shaft (8), on the outer peripheral surface of declutch shift shaft (8), be arranged with two guiding grooves (801), the position of corresponding guiding groove (801) correspondence in the pilot hole (901) of shift fork is provided with limiting stopper (902).
3. the cam gearshift that a kind of small gear-box according to claim 1 and 2 is used, 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

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

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Cited By (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
CN110967355A (en) * 2019-12-31 2020-04-07 桂林理工大学 Movable type steel bar sleeve grouting fullness detection device
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
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 (13)

* 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
US5562011A (en) * 1995-04-06 1996-10-08 Ford Motor Company Cam actuated single rail manual transmission
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
EP1118803A2 (en) * 2000-01-14 2001-07-25 Renault Shifting drum for a transmission, and transmission utilising such a shifting drum
CN2466035Y (en) * 2001-01-17 2001-12-19 李洪斌 External front and reserse gear shaft transmission for motor-tricycle
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
CN101889156A (en) * 2007-12-05 2010-11-17 Zf腓特烈港股份公司 Operating device with gate shafts
US20120096971A1 (en) * 2010-10-25 2012-04-26 France Reducteurs Transmission mechanism housing, notably for transmission between an input driveshaft and an output shaft
CN202349182U (en) * 2011-11-22 2012-07-25 河南科技大学 Cam type gear selection and shifting mechanism
CN202732862U (en) * 2012-07-17 2013-02-13 福建尚锟齿轮箱制造有限公司 Transmission box
CN203670738U (en) * 2014-01-14 2014-06-25 河南科技大学 Cam gear-shifting mechanism for small gearbox

Patent Citations (13)

* 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
US5562011A (en) * 1995-04-06 1996-10-08 Ford Motor Company Cam actuated single rail manual transmission
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
EP1118803A2 (en) * 2000-01-14 2001-07-25 Renault Shifting drum for a transmission, and transmission utilising such a shifting drum
CN2466035Y (en) * 2001-01-17 2001-12-19 李洪斌 External front and reserse gear shaft transmission for motor-tricycle
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
CN101889156A (en) * 2007-12-05 2010-11-17 Zf腓特烈港股份公司 Operating device with gate shafts
US20120096971A1 (en) * 2010-10-25 2012-04-26 France Reducteurs Transmission mechanism housing, notably for transmission between an input driveshaft and an output shaft
CN202349182U (en) * 2011-11-22 2012-07-25 河南科技大学 Cam type gear selection and shifting mechanism
CN202732862U (en) * 2012-07-17 2013-02-13 福建尚锟齿轮箱制造有限公司 Transmission box
CN203670738U (en) * 2014-01-14 2014-06-25 河南科技大学 Cam gear-shifting mechanism for small gearbox

Cited By (9)

* 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
CN110967355A (en) * 2019-12-31 2020-04-07 桂林理工大学 Movable type steel bar sleeve grouting fullness detection device
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

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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