CN107289121B - A kind of gearbox shifting device that an axis is kept off more - Google Patents
A kind of gearbox shifting device that an axis is kept off more Download PDFInfo
- Publication number
- CN107289121B CN107289121B CN201710468675.2A CN201710468675A CN107289121B CN 107289121 B CN107289121 B CN 107289121B CN 201710468675 A CN201710468675 A CN 201710468675A CN 107289121 B CN107289121 B CN 107289121B
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- Prior art keywords
- shift fork
- spring
- groove
- shifting
- gear shift
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Classifications
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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
- F16H59/042—Ratio selector apparatus comprising a final actuating mechanism
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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
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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
- 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
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
- F16H63/10—Multiple final output mechanisms being moved by a single common final actuating mechanism the final actuating mechanism having a series of independent ways of movement, each way of movement being associated with only one final output mechanism
- F16H63/12—Multiple final output mechanisms being moved by a single common final actuating mechanism the final actuating mechanism having a series of independent ways of movement, each way of movement being associated with only one final output mechanism two or more ways of movement occurring simultaneously
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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
- 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
- F16H63/36—Interlocking devices
Abstract
The present invention provides a kind of gearbox shifting devices that an axis is kept off more, including shift fork axle, circumferential limiting device, axial self-locking device, I-II gear shift fork and III-IV gear shift fork；Control crank is fixedly connected on one end of the shift fork axle；The other end of the shift fork axle passes through the through-hole of the axial self-locking device；The shift fork axle successively penetrates selection work shifting fork device, I-II gear shift fork and III-IV gear shift fork between the control crank and circumferential limiting device；The selection work shifting fork device is equipped with shift fork selection shifting block and axially directed slot；The center line of the shift fork selection shifting block and the center line of axially directed slot are in the same plane；The shift fork selection shifting block penetrates arc groove, by the rotation of the shift fork axle, so that the shift fork selects shifting block to rotate in arc groove along circular arc direction；The present invention can realize the different stalls switching of different shift forks by a shifting shaft, and component number is few, and assembly is simple.
Description
Technical field
The present invention relates to automotive field or gearbox field, in particular to a kind of shift of transmission dress that an axis is kept off more
It sets.
Background technique
Vehicle manual transmission stirs gear lever by driver, switches different driving gear pairs, to change driving
The torque of wheel and revolving speed such as meet vehicle start, go up a slope, run at high speed at the different operating conditions the needs of.The manipulation machine of manual transmission
Structure is one of important component of manual transmission, mainly includes shift pull rod, shifting block, selector fork axis, selector fork
And the major parts such as safety device.
Manual transmission gearshift is intended to select different work shift forks, then applied force to make by the manipulation of driver
Shift fork is mobile, and the movement of the mobile drive shift combined cover of shift fork engages the gear pair of different drive ratios, so that vehicle can be realized
The switching of gear.
Traditional manual shift device is mostly that shift is realized in more selector fork axis and the cooperation of each shift fork.Traditional direct behaviour
In vertical type manual shift mode, in each shift fork axle only assemble a shift fork come realize it is most 2 shift gears switching, when
When required gear number increases, needs to add corresponding selector fork axis and carry out the new shift fork of encapsulation, to increase shift control machine
The number of parts of structure.Such as: tradition directly manipulates and assembles a shifting fork device, shift fork in manual shift mode in a shift fork axle
The switching of two work gears and neutral gear position can be achieved in movement in shift fork axle；When vehicle needs four gears, just must increase
Add a selector fork axis, to bring requirement to corresponding space layout.In addition, also being needed in manual shift device certainly
Locking device guarantees that widths over teeth engagement and interlock guarantee that gear lever cannot push two shift forks simultaneously, and traditional is direct
It needs to interlock steel ball to multiple springs in control type manual shift mode, the parts such as interlocking ejector pin are assembled to realize interlocking
It is more with the number of parts of self-locking function, safety device, it assembles cumbersome.
The direct manipulation manual shift mode of traditional " two gears of a shift fork axle and a shift fork cooperation switching " exists
The interlocking peace for needing multiple groups shift fork axle when more than three gears to realize shift and multiple parts to guarantee each group fork axis
Entirely.That there are number of parts is more for above-mentioned direct manipulation manual shift mode, assembles cumbersome, should not arrange etc. and to ask under specific circumstances
Topic.
Summary of the invention
In response to the deficiencies in the existing technology, the present invention provides a kind of gearbox shifting device that an axis is kept off more, pass through
A piece shifting shaft realizes the different stalls switching of different shift forks, and component number is few, and assembly is simple.In addition, avoiding tradition
Guarantee handling safety with multiple components in mode, interlocking function can be reached in shelves limit features and middle position spring by one
Can, guarantee handling safety.
The present invention achieves the above technical objects by the following technical means.
A kind of gearbox shifting device that an axis is kept off more, including shift fork axle, circumferential limiting device, axial self-locking device, I-
II gear shift fork and III-IV gear shift fork；Control crank is fixedly connected on one end of the shift fork axle；The other end of the shift fork axle is worn
The through-hole for crossing the axial self-locking device limits the shift fork axle by the axial self-locking device and moves axially；The axial direction
Limiting device is fixed on case lid；The shift fork axle successively penetrates selection work between the control crank and circumferential limiting device
Make shifting fork device, I-II gear shift fork and III-IV gear shift fork；The selection work shifting fork device is equipped with shift fork selection shifting block and axis
To guide groove；The center line of the shift fork selection shifting block and the center line of axially directed slot are in the same plane；The shift fork
Axis is equipped with the first pin；First pins position is in the axially directed slot；The circumferential direction limiting device is fixed on case lid, institute
It states circumferential limiting device and is radially equipped with arc groove, the shift fork selection shifting block penetrates arc groove, passes through turning for the shift fork axle
It is dynamic, so that the shift fork selects shifting block to rotate in arc groove along circular arc direction；It is described that circumferential limiting device is axially symmetric sets
There are left guide groove and right guide groove；The notch of connection is equipped between the left guide groove and right guide groove；When the shift fork selects
When shifting block is located at the left or right of the arc groove, first pin moves in the left guide groove or right guide groove；Institute
It states I-II gear shift fork and III-IV gear shift fork passes through middle position spring respectively and connect with case lid；I-II gear shift fork is set vertically
There is the first waist type groove；The first half-arc groove is equipped in the long side of the first waist type groove；III-IV gear shift fork is vertically
Equipped with the second waist type groove；The second half-arc groove is equipped in the long side of the second waist type groove；I-II gear shift fork penetrates III-
In IV gear shift fork inner hole, the center line of center of arc's line of the first waist type groove and the second half-arc groove in the same plane,
And second waist type groove center of arc's line and the first half-arc groove center line in the same plane；The shift fork axle is equipped with and changes
Shifting block pin is kept off, and is located at the first half-arc groove of I-II gear shift fork or the second half-arc groove of III-IV gear shift fork.
Further, the axial self-locking device includes self-locking steel ball, self-locking spring and plug screw；In the axial self-locking device
Equipped with the steel ball mounting hole vertical with through-hole, and on case lid；Self-locking steel ball is placed in steel ball mounting hole bottom, it is described
Plug screw is fixedly mounted on steel ball mounting hole, the self-locking spring is located in steel ball mounting hole, and is located at the self-locking steel ball and spiral shell
Between plug；The shift fork axle one end for penetrating the through-hole of the axially stop block is equipped with several curved surfaces cooperated with self-locking steel ball.
Further, the circumferential limiting device is additionally provided with the spring groove through arc groove along axial direction, and with left guide groove and
Right guide groove is not interfered；Reset spring is installed, described reset spring one end is fixed on the spring groove in the spring groove both ends
Interior, the other end installs block；When reset spring does not compress, the top of the block is located in arc groove.
Further, the top of the block is cone, and circular cone direction is towards arc groove.
It further, further include spring retainer pin；The reset spring is fixed in the spring groove by spring retainer pin.
Further, the middle position spring is Double-hook tension-spring；I-II gear shift fork and III-IV gear shift fork are respectively equipped with spring
Mouthful；The spring mouth of the spring mouth of I-II gear shift fork and III-IV gear shift fork connects with one end of the middle position spring respectively
It connects；The other end of the middle position spring is connected on case lid spring mouth, and the case lid spring mouth is separately fixed on case lid.
Further, the spring groove is square.
Further, steel ball mounting hole bottom is tapered, cannot drop out from steel ball mounting hole bottom for steel ball.
The beneficial effects of the present invention are:
1. the gearbox shifting device that an axis of the present invention is kept off more, by I-II gear shift fork and III-IV gear shift fork
Waist type groove and half-arc groove and gear shifting pulling head pin be used cooperatively so that a shift fork axle can realize that two groups of shift forks are single respectively
Solely work, carries out multiple gear shifts, is a kind of novel shift mode.
2. the gearbox shifting device that an axis of the present invention is kept off more selects work shift fork by the rotation of shift fork axle,
The mobile carry out gear switching of shift fork axle.Compared with traditional directly manipulation manual shift mode, one is being saved under gear requires
Root shift fork axle can save more arrangement spaces or can be more convenient arrangement gearshift.
3. the gearbox shifting device that an axis of the present invention is kept off more, by one in shelves limit features and middle position spring
Interlock function can be reached, avoid a shift fork more change jobs in non-neutral gear shift fork the case where.It is changed manually with traditional directly manipulation
Gear mode is compared, and interlock part is few, and assembly is simple.
Detailed description of the invention
Fig. 1 is the general assembly drawing for the gearbox shifting device that an axis of the present invention is kept off more.
Fig. 2 is the three-dimensional figure of circumferential limiting device of the present invention.
Fig. 3 is the H-H cross-sectional view of Fig. 2.
Fig. 4 is the K-K cross-sectional view of Fig. 3.
Fig. 5 is I-II gear shift fork of the present invention and III-IV gear shift fork installation diagram.
Fig. 6 is selection work shifting fork device structural schematic diagram of the present invention.
Fig. 7 is assembling relationship figure in shift fork axle of the present invention.
Fig. 8 is the installation diagram of selection work shifting fork device of the present invention and circumferential limiting device.
Fig. 9 is axially stop block cross-sectional view of the present invention.
In figure:
1- case lid；2- control crank；3- shift fork axle；4- selects work shifting fork device；6- circumferential direction limiting device；7- is axial certainly
Locking device；8- case lid spring mouth；Position spring in 9-；3-1- pin；3-2- gear shifting pulling head pin；3-3- curved surface；The selection of 4-1- shift fork is dialled
Head；The axially directed slot of 4-2-；5-1- I-II keeps off shift fork；5-2- III-IV keeps off shift fork；5-3- shifting fork spring mouth；5-4- the first waist type
Slot；5-5- the second waist type groove；The first half-arc groove of 5-6-；The second half-arc groove of 5-7-；6-1- reset spring；6-2- block；6-
3- arc groove；6-4- is in shelves circumferential direction limit features；6-5- spring groove；6-6- spring retainer pin；6-7- spring retainer pin hole；6-8-
Left guide groove；The right guide groove of 6-9-；6-10- notch；The self-locking steel ball of 7-1-；7-2- self-locking spring；7-3- plug screw.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As shown in Figure 1 and Figure 7, the gearbox shifting device that an axis of the present invention is kept off more, including shift fork axle 3, circumferential direction
Limiting device 6, axial self-locking device 7, I-II keep off the gear of shift fork 5-1 and III-IV shift fork 5-2；Control crank 2 is fixedly connected on described
One end of shift fork axle 3；The other end of the shift fork axle 3 passes through the through-hole of the axial self-locking device 7, passes through the axial self-locking
Device 7 limits the shift fork axle 3 and moves axially；The axially stop block 7 is fixed on case lid 1；The shift fork axle 3 is described
Selection work shifting fork device 4, I-II is successively penetrated between control crank 2 and circumferential limiting device 7 keeps off the gear of shift fork 5-1 and III-IV
Shift fork 5-2；
As shown in fig. 6, the selection work shifting fork device 4, which is equipped with shift fork, selects shifting block 4-1 and axially directed slot 4-2；
The center line of the shift fork selection shifting block 4-1 and the center line of axially directed slot 4-2 are in the same plane；The shift fork axle 3
It is equipped with the first pin 3-1；The first pin 3-1 is located in the axially directed slot 4-2；
As shown in Figure 2, Figure 3 and Figure 4, the circumferential limiting device 6 is fixed on case lid 1,6 edge of the circumferential direction limiting device
It is radially provided with arc groove 6-3, the shift fork selection shifting block 4-1 penetrates arc groove 6-3, by the rotation of the shift fork axle 3, so that
The shift fork selection shifting block 4-1 is rotated in arc groove 6-3 along circular arc direction；It is described that circumferential limiting device 6 is axially symmetric sets
There are left guide groove 6-8 and right guide groove 6-9；The notch 6- of connection is equipped between the left guide groove 6-8 and right guide groove 6-9
10；When shift fork selection shifting block 4-1 is located in the left or right of the arc groove 6-3, the first pin 3-1 is described
It is moved in left guide groove 6-8 or right guide groove 6-9；The first pin 3-1 can be on left guide groove 6-8 and the right side by notch 6-10
Switch between guide groove 6-9.
As shown in figure 5, I-II gear shift fork 5-1 and III-IV gear shift fork 5-2 pass through middle position spring 9 respectively and connect with case lid 1
It connects；I-II gear shift fork 5-1 is equipped with the first waist type groove 5-4 vertically；It is equipped in the long side of the first waist type groove 5-4
First half-arc groove 5-6；III-IV gear shift fork 5-2 is equipped with the second waist type groove 5-5 vertically；In the second waist type groove
The long side of 5-5 is equipped with the second half-arc groove 5-7；I-II gear shift fork 5-1 is penetrated in III-IV gear shift fork 5-2 inner hole, described
The center line of center of arc's line of first waist type groove 5-4 and the second half-arc groove 5-7 in the same plane, and the second waist type groove 5-
The center line of 5 center of arc's line and the first half-arc groove 5-6 are in the same plane；The shift fork axle 3 is equipped with gear shifting pulling head
3-2 is sold, and is located at the first half-arc groove 5-6 of I-II gear shift fork 5-1 or the second semi arch with III-IV gear shift fork 5-2
Slot 5-7.
The course of work: driver rotates clockwise control crank 2, as shown in figure 1 unidirectional arrow direction, to drive shift fork axle
3 with equidirectional rotation, so that shift fork selection shifting block 4-1 is rotated to the end face arc groove 6-3；Pin 3-1 enters right guiding at this time
In slot 6-9, while gear shifting pulling head pin 3-2 enters in the first half-arc groove 5-6, is at this time neutral gear, i.e., I-II gear shift fork 5-1 prepares
Work；It is axially advanced mobile shift fork axle 3 with control crank 2, pin 3-1 touches the end of guide groove 4-2 in guide groove 4-2
Portion, while gear shifting pulling head pin 3-2 drives I-II gear shift fork 5-1 to move in the second waist type groove 5-5, hangs I-II gear shift fork 5-1
Enter I grade or II grade；When changing III and IV, shift fork axle 3 will be first pulled out to neutral gear position, shift fork axle 3 is then rotated counterclockwise, makes pin 3-
1 enters in left guide groove 6-8, while gear shifting pulling head pin 3-2 enters in the second half-arc groove 5-7, is at this time neutral gear, i.e., and III-IV
Keep off shift fork 5-1 preparation；It is axially advanced mobile shift fork axle 3 with control crank 2, pin 3-1 is touched in guide groove 4-2 to be led
To the end of slot 4-2, while gear shifting pulling head pin 3-2 drives III-IV gear shift fork 5-2 to move in the first waist type groove 5-4, makes III-
IV gear shift fork 5-2 is linked into III grade or IV grade.
As shown in figure 9, the axial self-locking device 7 includes self-locking steel ball 7-1, self-locking spring 7-2 and plug screw 7-3；It is described
The steel ball mounting hole vertical with through-hole is equipped in axial self-locking device 7, and on case lid 1；In steel ball mounting hole bottom
Self-locking steel ball 7-1 is placed, steel ball mounting hole bottom is tapered, cannot drop out from steel ball mounting hole bottom for steel ball 7-1.
Plug screw 7-3 is fixedly mounted on the steel ball mounting hole, the self-locking spring 7-2 is located in steel ball mounting hole, and described in certainly
It locks between steel ball 7-1 and plug screw 7-3；3 one end of shift fork axle for penetrating the through-hole of the axially stop block 7 is equipped with and self-locking steel
Several curved surface 3-3 of ball 7-1 cooperation.
As shown in figure 4, gear shifting pulling head pin 3-2 is in the activity of arc groove both ends for convenience, the circumferential direction limiting device 6 is along axis
To the spring groove 6-5 being additionally provided with through arc groove 6-3, and do not interfere with left guide groove 6-8 and right guide groove 6-9；The spring
Slot 6-5 is square.Reset spring 6-1 is installed, the one end the reset spring 6-1 is fixed on institute in the both ends the spring groove 6-5
It states in spring groove 6-5, the other end installs block 6-2；When reset spring 6-1 does not compress, the top of the block 6-2 is located at
In arc groove 6-3.The top of the block 6-2 is cone, and circular cone direction is towards arc groove 6-3.It further include spring retainer pin
6-6；The reset spring 6-1 is fixed in the spring groove 6-5 by spring retainer pin 6-6.
The middle position spring 9 is Double-hook tension-spring；I-II gear shift fork 5-1 and III-IV gear shift fork 5-2 are respectively equipped with spring
Mouth 5-3；It is described I-II gear shift fork 5-1 spring mouth 5-3 and it is described III-IV gear shift fork 5-2 spring mouth 5-3 respectively with it is described in
One end connection of position spring 9；The other end of the middle position spring 9 is separately connected case lid spring mouth 8, and the case lid spring mouth 8 is solid
It is scheduled on case lid 1.When middle position spring 9 makes inclination of vehicle, shift fork does not generate automatic sliding.Shelves circumferential direction limit features 6-4 with
Middle position spring 9 realizes the interlocking of shift fork.
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not
In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement
Or modification all belongs to the scope of protection of the present invention.
Claims (8)
1. the gearbox shifting device that an a kind of axis is kept off more, which is characterized in that including shift fork axle (3), circumferential limiting device (6),
Axial self-locking device (7), I-II gear shift fork (5-1) and III-IV gear shift fork (5-2)；
Control crank (2) is fixedly connected on one end of the shift fork axle (3)；The other end of the shift fork axle (3) passes through the axis
To the through-hole of self-locking device (7), the shift fork axle (3) is limited by the axial self-locking device (7) and is moved axially；The axial direction
Limiting device (7) is fixed on case lid (1)；The shift fork axle (3) the control crank (2) and circumferential limiting device (7) it
Between successively penetrate selection work shifting fork device (4), I-II gear shift fork (5-1) and III-IV keep off shift fork (5-2)；
The selection work shifting fork device (4) is equipped with shift fork selection shifting block (4-1) and axially directed slot (4-2)；The shift fork
The center line of the center line and axially directed slot (4-2) that select shifting block (4-1) is in the same plane；On the shift fork axle (3)
Equipped with the first pin (3-1)；First pin (3-1) is located in the axially directed slot (4-2)；
The circumferential direction limiting device (6) is fixed on case lid (1), and the circumferential direction limiting device (6) is radially equipped with arc groove (6-
3), shift fork selection shifting block (4-1) penetrates arc groove (6-3), by the rotation of the shift fork axle (3), so that the shift fork
Shifting block (4-1) is selected to rotate in arc groove (6-3) along circular arc direction；The circumferential direction limiting device (6) is axially symmetric to be equipped with
Left guide groove (6-8) and right guide groove (6-9)；Lacking for connection is equipped between the left guide groove (6-8) and right guide groove (6-9)
Mouth (6-10)；When shift fork selection shifting block (4-1) is located at the left or right of the arc groove (6-3), first pin
(3-1) is moved in the left guide groove (6-8) or right guide groove (6-9)；
I-II gear shift fork (5-1) and III-IV gear shift fork (5-2) are connect by middle position spring (9) with case lid (1) respectively；Institute
It states I-II gear shift fork (5-1) and is equipped with the first waist type groove (5-4) vertically；It is set in the long side of the first waist type groove (5-4)
There is the first half-arc groove (5-6)；III-IV gear shift fork (5-2) is equipped with the second waist type groove (5-5) vertically；Described
The long side of two waist type grooves (5-5) is equipped with the second half-arc groove (5-7)；I-II gear shift fork (5-1) penetrates III-IV gear shift fork
In (5-2) inner hole, center of arc's line of the first waist type groove (5-4) and the center line of the second half-arc groove (5-7) are same
In plane, and the center line of center of arc's line of the second waist type groove (5-5) and the first half-arc groove (5-6) is in the same plane；
The shift fork axle (3) is equipped with gear shifting pulling head pin (3-2), and is located at the first half-arc groove (5- of I-II gear shift fork (5-1)
6) or III-IV gear shift fork (5-2) the second half-arc groove (5-7).
2. the gearbox shifting device that an axis according to claim 1 is kept off more, which is characterized in that the axial self-locking device
It (7) include self-locking steel ball (7-1), self-locking spring (7-2) and plug screw (7-3)；It is equipped in the axial self-locking device (7) and through-hole
Vertical steel ball mounting hole, and on case lid (1)；Self-locking steel ball (7-1), the steel are placed in steel ball mounting hole bottom
Plug screw (7-3) is fixedly mounted on ball mounting hole, the self-locking spring (7-2) is located in steel ball mounting hole, and is located at described self-locking
Between steel ball (7-1) and plug screw (7-3)；Penetrate the through-hole of the axially stop block (7) shift fork axle (3) one end be equipped with
Several curved surfaces (3-3) of self-locking steel ball (7-1) cooperation.
3. the gearbox shifting device that an axis according to claim 1 is kept off more, which is characterized in that the circumferential direction limiting device
(6) be additionally provided with the spring groove (6-5) through arc groove (6-3) along axial direction, and with left guide groove (6-8) and right guide groove (6-9)
Do not interfere；Reset spring (6-1) is installed in spring groove (6-5) both ends, described reset spring (6-1) one end is fixed on described
In spring groove (6-5), the other end installs block (6-2)；When reset spring (6-1) does not compress, the top of the block (6-2)
Portion is located in arc groove (6-3).
4. the gearbox shifting device that an axis according to claim 3 is kept off more, which is characterized in that the block (6-2)
Top is cone, and circular cone direction is towards arc groove (6-3).
5. the gearbox shifting device that an axis according to claim 3 is kept off more, which is characterized in that further include spring retainer pin
(6-6)；The reset spring (6-1) is fixed in the spring groove (6-5) by spring retainer pin (6-6).
6. the gearbox shifting device that an axis according to claim 1 is kept off more, which is characterized in that the middle position spring (9)
For Double-hook tension-spring；I-II gear shift fork (5-1) and III-IV gear shift fork (5-2) are respectively equipped with spring mouth (5-3)；Described I-II
Keep off shift fork (5-1) spring mouth (5-3) and it is described III-IV keep off shift fork (5-2) spring mouth (5-3) respectively with respective middle position bullet
One end of spring (9) connects；The other end of the middle position spring (9) is separately connected case lid spring mouth (8), the case lid spring mouth
(8) it is fixed on case lid (1).
7. the gearbox shifting device that an axis according to claim 3 is kept off more, which is characterized in that the spring groove (6-5)
It is square.
8. the gearbox shifting device that an axis according to claim 2 is kept off more, which is characterized in that steel ball mounting hole bottom
Portion is tapered, cannot drop out from steel ball mounting hole bottom for steel ball (7-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468675.2A CN107289121B (en) | 2017-06-15 | 2017-06-15 | A kind of gearbox shifting device that an axis is kept off more |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468675.2A CN107289121B (en) | 2017-06-15 | 2017-06-15 | A kind of gearbox shifting device that an axis is kept off more |
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| CN107289121A CN107289121A (en) | 2017-10-24 |
| CN107289121B true CN107289121B (en) | 2019-02-05 |
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| CN201710468675.2A Active CN107289121B (en) | 2017-06-15 | 2017-06-15 | A kind of gearbox shifting device that an axis is kept off more |
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Families Citing this family (1)
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| CN108674180A (en) * | 2018-06-09 | 2018-10-19 | 无锡正瑞汽车传动技术有限公司 | A kind of motion of dual power drive system shift fork axle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364793A (en) * | 1964-05-27 | 1968-01-23 | Brown Tractors Ltd | Multi-ratio transmissions |
| CN103244666A (en) * | 2013-05-27 | 2013-08-14 | 陕西法士特齿轮有限责任公司 | Transmission gear shifting operation mechanism |
| CN106763748A (en) * | 2017-01-22 | 2017-05-31 | 东风商用车有限公司 | A kind of coaxial-type shifting fork structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5869459B2 (en) * | 2012-09-27 | 2016-02-24 | 本田技研工業株式会社 | Shift drum structure of drum transmission |
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2017
- 2017-06-15 CN CN201710468675.2A patent/CN107289121B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364793A (en) * | 1964-05-27 | 1968-01-23 | Brown Tractors Ltd | Multi-ratio transmissions |
| CN103244666A (en) * | 2013-05-27 | 2013-08-14 | 陕西法士特齿轮有限责任公司 | Transmission gear shifting operation mechanism |
| CN106763748A (en) * | 2017-01-22 | 2017-05-31 | 东风商用车有限公司 | A kind of coaxial-type shifting fork structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107289121A (en) | 2017-10-24 |
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