CN105840813A - Position limiting mechanism for transmission shifting and transmission - Google Patents
Position limiting mechanism for transmission shifting and transmission Download PDFInfo
- Publication number
- CN105840813A CN105840813A CN201610352859.8A CN201610352859A CN105840813A CN 105840813 A CN105840813 A CN 105840813A CN 201610352859 A CN201610352859 A CN 201610352859A CN 105840813 A CN105840813 A CN 105840813A
- Authority
- CN
- China
- Prior art keywords
- transmission
- gear
- gearshift
- holding tank
- fastener
- 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
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
-
- 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
- F16H63/34—Locking or disabling mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention provides a position limiting mechanism for transmission shifting and a transmission. The position limiting mechanism comprises a limiting part, a driving shaft and a shifting joint part; the driving shaft is provided with a limiting slot; an accommodating groove is formed in an inner circle of the shifting joint part; the limiting slot and the accommodating groove are opposite, and the limiting part is arranged in the limiting slot and radially protrudes into the accommodating groove; the shifting joint part is limited at an axial sliding position on the driving shaft through the limiting part; and the radial dimension of the accommodate groove meets the condition of accommodating the limiting part separated from the limiting slot along the radial direction. The position limiting mechanism provided by the invention is used for the transmission, prevents the condition that a neutral gear is directly engaged into a second gear, and plays a role of shifting protection; and after first-gear operation, the limiting is relieved by using a centrifugal force, and smooth operation of engaging a gear during normal operation is guaranteed, thereby benefiting stable and normal operation of an engine and the transmission, and prolonging the service life of the engine and the transmission. The scheme is simple and practical in structure and low in cost; and structural arrangement of an original transmission does not need to be changed.
Description
Technical field
The present invention relates to a kind of drive apparatus parts, particularly relate to a kind of position-limit mechanism for shift of transmission
And variator.
Background technology
Gearshift is indispensable program and the step of many gear structure variators, to realize the equipment adaptation differences such as motor vehicles
Running environment；For motorcycle, travel the traveling different roads is different with employing fast
When spending, then need different gears to mate, thus reach good running status.In prior art, motor
Car variator is optimized design, and gear arranges the gear setting of more employings 1-0-2345, i.e. from
Step needs to be suspended to a gear from neutral to normal traveling, a gear reach after certain speed again from a gear through neutral extension
To two gears, follow-up, it is three gears, four gears etc., and when operational error, can be under static state directly by sky
Gear is hung to two gears, causes vehicle cannot normally start to walk to travel, and even can cause security incident, also can affect and send out
Motivation properly functioning, impacts variator, reduces service life.
Accordingly, it would be desirable to improved by the gearshift of existing variator, play the effect of gearshift protection,
Starting state is avoided directly to be put into gear by neutral into two gears, it is ensured that electromotor and variator the most properly functioning.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of position-limit mechanism for shift of transmission and variator,
Play gearshift protection effect, it is to avoid starting state is directly put into gear by neutral into two gears, it is ensured that electromotor and
Variator the most properly functioning.
The position-limit mechanism for shift of transmission of the present invention, including locating part, power transmission shaft and can axially slide
The mode transmission moved coordinates the gearshift fastener being coated at power transmission shaft, and described power transmission shaft is provided with stopper slot, gearshift
The inner circle of fastener is provided with holding tank, and described stopper slot is relative with holding tank and locating part is placed in stopper slot footpath
In being protruding to holding tank, described gearshift fastener is limited on described power transmission shaft axially slide by this locating part
The position moved, the radial dimension of described holding tank meets can accommodate the locating part radially departing from stopper slot；Adopt
With position-limit mechanism, stopper slot, the position of holding tank and parameter are set and can limit the axial sliding of gearshift fastener
Pan position, in power transmission shaft resting state, when neutral gear position, locating part is positioned at stopper slot and holding tank, only
Can put into gear to a direction sliding and (such as when hanging two gears due to above-mentioned spacing, cannot be linked into, can only be linked into
One gear)；When drive axis, locating part enters holding tank because of the effect of centrifugal force and departs from stopper slot,
Axial limiting releases, and gearshift fastener then can be freely formed axial slip, can be sliding to another one direction smoothly
Move (being such as linked into two gears)；Locating part can make different shapes as required, and resting state is simultaneously embedded in appearance
Receive groove and stopper slot, the two is formed axial mutual constraint；Holding tank and stopper slot alternative one are axial
Strip structure can form the groove of the locating slip axially with certain distance, i.e. holding tank and stopper slot along limit
Made moving axially of locating part, stopper slot, the position of holding tank and parameter can according to neutral, one gear, two
The position of gear is set, and does not repeats them here；Gearshift fastener can be lock unit, soldered tooth set etc.,
All can realize purpose；This programme by limit its axial slip position reach to avoid variator from neutral directly to
Other direction sliding (is such as suspended to the purpose of two gears, is directly hung to two gears and refers at vehicle start or set
Two gears directly it are linked into) during standby startup；When actually used, being linked into two gears can be realized by gearshift fastener itself,
Can also be realized by having the fastener being associated in axial phase place, such as be driven by same gearshift drum
Gearshift fastener, the two phase place is driven by gearshift drum and realizes, limit the axial location of a fastener,
And this fastener corresponding gearshift molded line groove have continue drive this fastener sliding trend, then gearshift drum then
Cannot rotate, another gearshift fastener then cannot realize moving axially；This spacing drive axis to set
Releasing during rotating speed, the program is when setting speed, is adapted to two gears and runs and then can release restriction and be linked into two gears.
Further, described stopper slot is bar-shaped trough vertically, and holding tank is cylindricality cavernous structure；Described limit
The axial length of position groove makes it spacing thus gearshift fastener is limited axial slip to the axial slip of locating part
Position；The most described stopper slot limits axial slip position by its axial edge to gearshift fastener, i.e. limits
It is moved to the left as illustrated in the drawing, it is to avoid be directly linked into two gears by neutral；Stopper slot use strip structure and
Holding tank uses cylindrical hole structure to be beneficial to locating part and forms constraint, and carries out the most flexibly separating and spacing,
Avoid locating part return difficulty.
Further, described locating part is spacing ball, facilitates sliding and centrifugation, and is beneficial to operate return.
Further, described gearshift fastener is coordinated with power transmission shaft by spline, the depth direction of described stopper slot
For radial direction and the between cog of the spline being positioned at power transmission shaft, the depth direction of described holding tank is for radial direction and is positioned at gearshift
The key tooth of the spline of fastener；There is advantage easy to process, and original spline structure do not damaged,
Make locating part also have certain assosting effect to spline drived, the most also there is the function of anti-transmission impact.
Further, the bottom land of described holding tank is provided with radial direction through hole, the opening of described radial direction through hole be positioned at for
In the fork slot coordinated with shift fork；This radial direction through hole can make lubricating oil be entered stopper slot and with spacing by fork slot
Part is contact lubricated, it is ensured that the motility of integral slipping.
Further, the most one-body molded gear driven gear that is provided with of described gearshift fastener, simple and compact for structure.
Further, to be at least three the most uniform for described stopper slot and holding tank；Ensure structure
Effectiveness and the balance of operation.
The invention also discloses a kind of variator, described variator is provided with the described limit for protection of shifting gears
Position mechanism.
Beneficial effects of the present invention: the position-limit mechanism for shift of transmission of the present invention and variator, is used for
Variator is directly linked into two gear stroke limits to neutral, it is to avoid be directly linked into two gears by neutral, plays gearshift and protects
The effect protected, and after a gear runs, utilize centrifugal force by spacing releasing, it is ensured that putting into gear in properly functioning
It is smoothed out, thus beneficially electromotor and variator is the most properly functioning, extends its service life；This
Scenario-frame is simple and practical, low cost, varies without original speed changer structure and arranges.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the use state deployed configuration schematic diagram of the present invention；
Fig. 2 is gearshift actuator deployed configuration schematic diagram；
Fig. 3 is position-limit mechanism sectional view (power transmission shaft running status).
Detailed description of the invention
Fig. 1 is the use state deployed configuration schematic diagram of the present invention, and Fig. 2 shows for gearshift actuator deployed configuration
Being intended to, Fig. 3 is position-limit mechanism sectional view (power transmission shaft running status), as it can be seen, the one of present invention offer
Kind for the position-limit mechanism of shift of transmission, including locating part 1, stopper slot 2 and that is arranged at power transmission shaft 10
Being arranged at the holding tank 3 of gearshift fastener 9 inner circle, described stopper slot 2 is relative with holding tank 3 and locating part 1
Being placed in stopper slot 2 radially protruding in holding tank 3, described gearshift fastener 9 is limited by this locating part 1
Being scheduled on the position of axial slip on described power transmission shaft 10, the radial dimension of described holding tank 3 meets can accommodate edge
Radially depart from the locating part 1 of stopper slot 3；Use position-limit mechanism, stopper slot 2, the position of holding tank 3 are set
The axial slip position of fastener 9 of shifting gears can be limited, in power transmission shaft resting state, in neutral position with parameter
When putting, locating part is positioned at stopper slot and holding tank (as shown in Figure 1), (ratio of can only putting into gear to a direction sliding
As hang two gear time due to above-mentioned spacing, cannot be linked into, a gear can only be linked into)；When power transmission shaft 10 rotates,
Locating part 1 is because the effect of centrifugal force enters holding tank 3 and departs from stopper slot 2 (as shown in Figure 3), axially
Spacing releasing, gearshift fastener 9 then can be freely formed axial slip, can be linked into two gears smoothly；Locating part can
Making different shapes as required, resting state is simultaneously embedded in holding tank 3 and stopper slot 2, to the two shape
Become axial mutual constraint；Holding tank 3 and stopper slot 2 alternative one are that axial bar structure can form axle
To having the locating slip of certain distance, i.e. the groove of holding tank and stopper slot is along the axial shifting limiting locating part
Dynamic, stopper slot 2, the position of holding tank 3 and parameter can set according to neutral, a gear, the position of two gears
Fixed, do not repeat them here；This programme reaches to avoid variator straight from neutral by limiting its axial slip position
Connect to other direction sliding (be such as suspended to the purpose of two gears, be directly hung to two gears refer at vehicle start or
Person's equipment is directly linked into two gears when starting)；When actually used, being linked into two gears can be by gearshift fastener itself
Realize, it is also possible to realized by having the fastener being associated in axial phase place, such as by same gearshift drum
The gearshift fastener driven, the two phase place is driven by gearshift drum and realizes, limit the axial of a fastener
Position, and this fastener corresponding gearshift molded line groove have continue drive this fastener sliding trend, then change
Gear drum then cannot rotate, and another gearshift fastener then cannot realize moving axially；This is spacing at drive axis
Releasing to during setting speed, the program is when setting speed, is adapted to two gears operations and then can release restriction extension
Enter two gears；Gearshift fastener can be lock unit, soldered tooth set etc., all can realize purpose.
In the present embodiment, described stopper slot 2 is bar-shaped trough vertically, and holding tank 3 is cylindricality cavernous structure；
The axial length of described stopper slot 2 make its to the axial slip of locating part 1 spacing thus to gearshift fastener 9
Limit axial slip position；The most described stopper slot limits axial slip by its axial edge to gearshift fastener
Position, i.e. limits and is moved to the left as illustrated in the drawing, it is to avoid be directly linked into two gears by neutral；Stopper slot uses
Strip structure and holding tank use cylindrical hole structure to be beneficial to locating part and form constraint, and enter the most flexibly
Row separates and spacing, it is to avoid locating part return difficulty.
In the present embodiment, described locating part 1 is spacing ball；Facilitate sliding and centrifugation, and be beneficial to behaviour
Make return.
In the present embodiment, described gearshift fastener 9 is coordinated with power transmission shaft 10 by spline, described stopper slot 2
It is radially and lays respectively at the tooth of the spline of power transmission shaft and gearshift fastener with the depth direction of holding tank 3
Between；There is advantage easy to process, and original spline structure is not damaged so that locating part is to spline
Transmission also has certain assosting effect.
In the present embodiment, the bottom land of described holding tank 3 is provided with radial direction through hole 4, opening of described radial direction through hole 4
Mouth is positioned at the fork slot for coordinating with the first shift fork；This radial direction through hole can make lubricating oil be entered by fork slot
Stopper slot is the most contact lubricated with locating part, it is ensured that the motility of integral slipping.
In the present embodiment, it is the most uniform that described stopper slot 2 and holding tank 3 are at least three, when
So, locating part 1 also corresponds to stopper slot 2 and holding tank 3 is arranged, it is ensured that the effectiveness of structure and operation
Balance.
Fig. 1 is that the present invention uses state diagram, and when the present invention uses, for variator, variator includes speed change
Gear train, main shaft, described power transmission shaft 10 is countershaft, and described second gearshift fastener 8 is provided with the most through
Radial direction through hole 11, the opening of described radial direction through hole is positioned at the fork slot for coordinating with the second shift fork, is beneficial to
Form lubrication, it is ensured that the smoothness of gearshift slipping；As it can be seen, main shaft is provided with the master of one to six gear
Moving gear, countershaft arranges the driven gear of one to six gear, and main shaft is additionally provided with the 3rd gearshift fastener, by
Same gearshift actuator is driven by the 3rd shift fork, gearshift actuator also has and drives the 3rd of the 3rd shift fork
Molded line groove, does not repeats them here.Gear teeth wheels refer to the gear of all participation transmissions in variator, bag
Include driving gear and the driven gear of all gears of all gears, do not repeat them here；Variator includes
One shift fork the 5, second shift fork 7 and transmission coordinate and can be completed gearshift by the second shift fork 7 driving axial sliding
Being coated at the second gearshift fastener 8 of power transmission shaft, described gearshift actuator 6 is by the first shift fork 5 and second
Shift fork 7 drives gearshift fastener 9 and the second gearshift fastener 8 to form gearshift, described gearshift fastener respectively
9 keep off and two gears with the second gearshift fastener 8 corresponding extension of axial slip respectively；Described stopper slot 2 is to gearshift
The axial slip position that fastener 9 is limited is in gearshift actuator 6 and drives the second gearshift fastener 8 axial
Before two gears are hung in sliding, and i.e. it is defined continuation sliding before being linked into two gears；Make full use of existing gear cloth
Put structure, save use cost；As it can be seen, the second shift fork 7 is positioned on the left of the first shift fork 5, by same
Gearshift actuator 6 drives, when being positioned at neutral and power transmission shaft is static or rotating speed is relatively low, due to position-limit mechanism
Effect, gearshift fastener 9 cannot sliding to the left, gearshift actuator 6 to hang two gear directions actions then cannot
Carry out, and then the second gearshift fastener cannot be driven to be linked into two gears；When rotating speed of transmission shaft arrives setting speed greatly,
Centrifugal force makes locating part depart from stopper slot, then gearshift actuator then can freely drive, and completes to be linked into two gears,
Simple and compact for structure.Described gearshift actuator 6 is gearshift drum or the gearshift planker with gearshift molded line groove,
The present embodiment is gearshift drum；Gearshift molded line groove on described gearshift actuator 6 includes for driving first group
Pitch the first molded line groove 61 of 5 and for driving the Second-Type wire casing 62 of the second shift fork 7, by a gear to neutral
Shape line a be longer than one gear hang neutral stroke b, the shape line that shape line length refers to be linked into neutral by a gear is complete
Long, a gear is hung neutral stroke and is then referred to the actually required stroke from a gear to neutral, due to shape line length
More than actually required stroke, after being linked into neutral by a gear, gearshift actuator 6 continues action, gearshift connect
Component 9 will be disengaged from the locating part of stopper slot to be continued to drive to the left, exceedes restraining position and departs from spacing, then may be used
Continue to drive the second gearshift fastener to complete to be linked into two gears；The axle that gearshift fastener is limited by described stopper slot
It is positioned at neutral gear position to slip locations, is i.e. positioned at neutral and is linked into the position of two gears, it is to avoid be directly linked into two gears；
1. the gear of described variator is set to that-N-is 2. ... structure, on gear structure molded line groove as shown in Figure 2
Position represents one to six gear, 1.-N-the most 6. structure, and N represents neutral, each self catcher of other digitized representations
Position；The direction that is linked into of i.e. one gear and two gears mutually deviates from；The gear of described variator is set to 1.-N-
2. ... structure, when Second-Type wire casing hangs two gears, the linear of the first molded line groove makes gearshift fastener be positioned at sky
Keep off and drive locating part vertically beyond stopper slot.Described gearshift fastener 9 is the most one-body molded be provided with five gears from
Moving gear, the most one-body molded six gear driven gears that are provided with of the second gear fastener 8, simple and compact for structure.
The invention also discloses a kind of variator, described variator is provided with the described limit for protection of shifting gears
Position mechanism.
In the present invention, described axially and radially average power transmission shaft is axially and radially.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although
With reference to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that,
Technical scheme can be modified or equivalent, without deviating from technical solution of the present invention
Objective and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (8)
1. the position-limit mechanism for shift of transmission, it is characterised in that: include locating part, power transmission shaft and
Transmission can coordinate and be coated at the gearshift fastener of power transmission shaft in the way of axial slip, described power transmission shaft is provided with limit
Position groove, the inner circle of gearshift fastener is provided with holding tank, and described stopper slot is relative with holding tank and locating part is placed in
Stopper slot radially protruding are in holding tank, and described gearshift fastener is limited to described transmission by this locating part
The position of axial slip on axle, the radial dimension of described holding tank radially departs from stopper slot satisfied can receiving
Locating part.
The most according to claim 1 for the position-limit mechanism of shift of transmission, it is characterised in that: described limit
Position groove is bar-shaped trough vertically, and holding tank is cylindricality cavernous structure；The axial length of described stopper slot makes it
To the axial slip of locating part spacing thus to gearshift fastener limit axial slip position.
The most according to claim 2 for the position-limit mechanism of shift of transmission, it is characterised in that: described limit
Position part is spacing ball.
The most according to claim 2 for the position-limit mechanism of shift of transmission, it is characterised in that change described in:
Gear fastener is coordinated with power transmission shaft by spline, and the depth direction of described stopper slot is for radial direction and is positioned at power transmission shaft
The between cog of spline, the depth direction of described holding tank is radially and is positioned at the key tooth of spline of gearshift fastener.
The most according to claim 2 for the position-limit mechanism of shift of transmission, it is characterised in that: described appearance
The bottom land of groove received is provided with radial direction through hole, and the opening of described radial direction through hole is positioned at the fork slot for coordinating with shift fork
In.
The most according to claim 5 for the position-limit mechanism of shift of transmission, it is characterised in that change described in:
Fastener is the most one-body molded is provided with gear driven gear for gear.
The most according to claim 2 for the position-limit mechanism of shift of transmission, it is characterised in that: described limit
It is the most uniform that position groove and holding tank are at least three.
8. a variator, it is characterised in that: described variator is provided with the arbitrary right of claim 1 to 7
The position-limit mechanism for protection of shifting gears described in requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352859.8A CN105840813A (en) | 2016-05-25 | 2016-05-25 | Position limiting mechanism for transmission shifting and transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352859.8A CN105840813A (en) | 2016-05-25 | 2016-05-25 | Position limiting mechanism for transmission shifting and transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840813A true CN105840813A (en) | 2016-08-10 |
Family
ID=56594303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352859.8A Pending CN105840813A (en) | 2016-05-25 | 2016-05-25 | Position limiting mechanism for transmission shifting and transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110154747A (en) * | 2018-02-12 | 2019-08-23 | 比亚迪股份有限公司 | The speed changer of vehicle, the power assembly of vehicle and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712163A (en) * | 1980-06-24 | 1982-01-22 | Honda Motor Co Ltd | Speed change gear for motorcycle |
| CN2916277Y (en) * | 2006-03-29 | 2007-06-27 | 重庆隆鑫工业（集团）有限公司 | Gearshift speed-changing hub for motorcycle engine |
| CN102359588A (en) * | 2011-10-31 | 2012-02-22 | 浙江春风动力股份有限公司 | Driven gear device for motorcycle engine |
| US20130239716A1 (en) * | 2012-03-15 | 2013-09-19 | Yamaha Hatsudoki Kabushiki Kaisha | Transmission and vehicle provided therewith |
| CN105059466A (en) * | 2015-08-10 | 2015-11-18 | 宁波市龙嘉摩托车有限公司 | Gear shift mechanism for motorcycle |
| CN205780816U (en) * | 2016-05-25 | 2016-12-07 | 重庆隆鑫发动机有限公司 | Position-limit mechanism and variator for protection of shifting gears |
-
2016
- 2016-05-25 CN CN201610352859.8A patent/CN105840813A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712163A (en) * | 1980-06-24 | 1982-01-22 | Honda Motor Co Ltd | Speed change gear for motorcycle |
| CN2916277Y (en) * | 2006-03-29 | 2007-06-27 | 重庆隆鑫工业（集团）有限公司 | Gearshift speed-changing hub for motorcycle engine |
| CN102359588A (en) * | 2011-10-31 | 2012-02-22 | 浙江春风动力股份有限公司 | Driven gear device for motorcycle engine |
| US20130239716A1 (en) * | 2012-03-15 | 2013-09-19 | Yamaha Hatsudoki Kabushiki Kaisha | Transmission and vehicle provided therewith |
| CN105059466A (en) * | 2015-08-10 | 2015-11-18 | 宁波市龙嘉摩托车有限公司 | Gear shift mechanism for motorcycle |
| CN205780816U (en) * | 2016-05-25 | 2016-12-07 | 重庆隆鑫发动机有限公司 | Position-limit mechanism and variator for protection of shifting gears |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110154747A (en) * | 2018-02-12 | 2019-08-23 | 比亚迪股份有限公司 | The speed changer of vehicle, the power assembly of vehicle and vehicle |
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Application publication date: 20160810 |
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