CN209430752U - A kind of gearbox and its gearshift - Google Patents
A kind of gearbox and its gearshift Download PDFInfo
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- CN209430752U CN209430752U CN201822058491.1U CN201822058491U CN209430752U CN 209430752 U CN209430752 U CN 209430752U CN 201822058491 U CN201822058491 U CN 201822058491U CN 209430752 U CN209430752 U CN 209430752U
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Abstract
This application discloses a kind of gearshifts, including shell；Block selecting axis；Reference axis, the reference axis are fixed on the housing；It is set on the reference axis and can be along the first shift fork axle sleeve in axial sliding of the reference axis and the second shift fork axle sleeve, first shift fork axle is put on equipped with the first shift shifting block, second shift fork axle is put on equipped with the second shift shifting block, the first shift shifting block is located in first card slot, it is described second shift shifting block be located in second card slot, it is described first shift shifting block and it is described second shift shifting block can the block selecting axis rotation during under the drive of first card slot and second card slot along the axial movement of the block selecting axis.Gearshift provided herein, the space occupied is small, and structure is relatively simple, is hardly damaged, gearbox during the work time will not off-gear, using reliable.Disclosed herein as well is a kind of gearboxes including above-mentioned gearshift.
Description
Technical field
This application involves gearbox apparatus fields, more particularly to a kind of gearshift.In addition, the application further relates to one kind
Gearbox including above-mentioned gearshift.
Background technique
Gearbox is one of very important total member in vehicle transmission field, is obtained to meet automobile during traveling
Different speed is obtained, so multiple gears can be arranged in gearbox, therefore just needs more reliable gear shifting structure.
Currently, gear shifting structure general on gearbox is to stir three by the block selecting axis in rotation shift tower arranged side by side to change
Shift fork axle is kept off, when in order to guarantee that each gear can be switched to, it is necessary to guarantee position there are five the block selecting axis in shift tower
Node, this five nodes respectively correspond 1/2 gear of switching, 3/4 gear, 5/6 gear, 7/8 gear and reverse gear, and are elected to gear shaft in corresponding position
When setting on node, by rotating clockwise or counter-clockwise block selecting axis certain angle, the corresponding gear of the node can be switched to.
However, three selector fork axis are in juxtaposition from top to bottom, this arrangement mode in existing shift mode
Cause occupied space larger.And in block selecting, each nodes of locations only corresponds to one or two gears, causes nodes of locations
Excessively, block selecting axis location difficulty, it is complicated for operation.It is elected to after getting a certain nodes of locations, rotation block selecting axis can be switched to one
Fixed gear, so be easy to causeing off-gear, is influenced since the Plane of rotation of block selecting axis is parallel with the moving direction of selector fork axis
It works normally.
Therefore, the reliability for how improving gearshift, is a technical problem that technical personnel in the field need to solve at present.
Utility model content
The purpose of the application is to provide a kind of gearshift, and the gearshift block selecting is quick and precisely, easy to operate, is easy real
It is existing.The another object of the application is to provide a kind of gearbox including above-mentioned gearshift.
To achieve the above object, the application provides the following technical solutions:
A kind of gearshift, comprising:
Shell；
Block selecting axis, the axial direction of the block selecting axis at least arrange be equipped with the first card slot and the second card slot, first card slot and
Second card slot is circumferentially with bending extension and straight portion along the block selecting axis, the bending extension with
The straight portion smooth excessiveness, also, the straight portion of the bending extension and second card slot of first card slot
Position is opposite, and the straight portion of first card slot is opposite with the bending extension position of second card slot；
Reference axis, the reference axis are fixed on the housing；
It is set on the reference axis and can be along the first shift fork axle sleeve and the second shift fork in axial sliding of the reference axis
Axle sleeve, first shift fork axle are put on equipped with the first shift shifting block, and second shift fork axle is put on equipped with the second shift shifting block, institute
The first shift shifting block to be stated to be located in first card slot, the second shift shifting block is located in second card slot, and described first
Shifting gears shifting block and the second shift shifting block can be during the block selecting axis rotates in first card slot and described the
Along the axial movement of the block selecting axis under the drive of two draw-in groove.
Preferably, third card slot is additionally provided on the block selecting axis, the third card slot includes the circumferential direction along the block selecting axis
It reverses gear card slot around the third gear card slot of setting and the third that is obliquely installed, the third is reversed gear card slot and the third gear
Card slot connection；It further include being set on the reference axis and can be along the back fork axle sleeve in axial sliding of the reference axis, institute
State and reverse gear shifting fork be installed on back fork axle sleeve, the back fork axle sleeve is equipped with and reverses gear shifting block of shifting gears, it is described fall
Gear shift shifting block can the third reverse gear card slot drive under along the block selecting axis axial movement；The first card slot packet
It includes the first gear card slot and first to reverse gear card slot, second card slot includes that the second gear card slot and second are reversed gear card slot；It is described
Block selecting axis can move along its axis, the axial direction of the rotational plane of the block selecting axis perpendicular to the block selecting axis；It is described when described the
One shift shifting block is located in the first gear card slot, and the second shift shifting block is located in the second gear card slot, described
The shifting block of shifting gears of reversing gear is located in third gear card slot；It reverses gear in card slot when the first shift shifting block is located at described first, it is described
Second shift shifting block, which is located at, described second to reverse gear in card slot, and the shifting block of shifting gears of reversing gear is located at third and reverses gear in card slot.
Preferably, the block selecting axis is equipped with block selecting axis fixture block, at least provided with the block selecting gear card of annular on the shell
Slot and block selecting axis reverse gear card slot, during block selecting axis axial movement, the block selecting axis fixture block can respectively with the choosing
Gear gear card slot or the block selecting axis reverse gear card slot position it is corresponding.
Preferably, the end of the block selecting axis is equipped with gear lever, and the rotational plane of the gear lever is perpendicular to the choosing
The axial direction of gear shaft is equipped with commutating tooth and bidirectional ratchet tooth between the gear lever and the block selecting axis；It is installed on the gear lever
Have for changing the reversing switch in gear lever locking direction.
Preferably, the bending extension includes two inflection points at left and right sides of neutral gear position, when corresponding described
When first shift shifting block is overlapped with two inflection points respectively, then it is respectively at a gear and second gear, when corresponding described second
When shift shifting block is overlapped with two inflection points respectively, then three gears and four gears are respectively at.
Preferably, first shift fork axle, which is put on, is equipped with the first selector fork, and second shift fork axle, which is put on, to be equipped with
Second selector fork.
Preferably, first card slot includes the first low gear card slot and the first high gear card slot arranged in parallel, described
Second card slot includes the second low gear card slot and the second high gear card slot arranged in parallel；When the block selecting axis be axially moveable to
First shift shifting block is corresponding with the first low gear groove position, and the second shift shifting block is corresponding with the second low gear groove position
When, jack shaft is in the state that slowly runs；When the block selecting axis is axially moveable to the first shift shifting block and first high
Gear groove position is corresponding, and the second shift shifting block and the second high gear groove position to it is corresponding when jack shaft in high
Fast rotary state.
Preferably, the block selecting gear card slot of the shell includes block selecting axis high gear card slot and block selecting axis low gear card slot,
Between block selecting axis low gear card slot is located at the block selecting axis high gear card slot and the block selecting axis reverses gear card slot.
Preferably, first card slot further includes first reversing gear card slot, and second card slot further includes second reversing gear card slot,
The first low gear card slot, the first high gear card slot and described first reverse gear card slot in neutral gear position Shi Liantong, and described
Two low gear card slots, the second high gear card slot and described second reverse gear card slot in neutral gear position Shi Liantong.
The application also provides a kind of gearbox, including gearshift described in above-mentioned any one.
Gearshift provided herein, including shell；Block selecting axis, the axial direction of the block selecting axis, which at least arranges, is equipped with the
One card slot and the second card slot, first card slot and second card slot are circumferentially with bending extension along the block selecting axis
Point and straight portion, the bending extension and the straight portion smooth excessiveness, also, the bending of first card slot is prolonged
Extending portion point is opposite with the straight portion position of second card slot, the straight portion of first card slot and second card slot
It is opposite to bend extension position；Reference axis, the reference axis are fixed on the housing；It is set on the reference axis and can
Along the first shift fork axle sleeve in axial sliding of the reference axis and the second shift fork axle sleeve, first shift fork axle is put on equipped with first
Shift shifting block, second shift fork axle are put on equipped with the second shift shifting block, and the first shift shifting block is located at first card slot
Interior, the second shift shifting block is located in second card slot, the first shift shifting block and the second shift shifting block
Along the block selecting axis under the drive of first card slot and second card slot during block selecting axis rotation
Axial movement.The gearshift, by the way that the first shift fork axle sleeve and the second shift fork axle sleeve are set on a foundation fiducial axis, compared to
Existing gearshift the space occupied is small, and structure is relatively simple, is hardly damaged, also, where the direction of rotation of block selecting axis
Plane is vertical with the moving direction of block selecting axis, gearbox during the work time will not off-gear, using reliable.
Gearbox provided herein is equipped with above-mentioned gearshift, since the gearshift is imitated with above-mentioned technology
Fruit, therefore, the gearbox equipped with the gearshift should also be as having corresponding technical effect.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of specific embodiment of gearshift provided herein；
Fig. 2 is the structural schematic diagram of block selecting axis and gear lever in gearshift provided herein；
Fig. 3 is the structural schematic diagram of reference axis and selector fork axle sleeve in gearshift provided herein；
Wherein: 1, reversing switch；2, gear lever；3, reference axis；4, block selecting axis；5, shell；6, gear shift in 3/4 (7/8) is dialled
Fork shaft set；7,1/2 (5/6) keeps off selector fork axle sleeve；8, reverse gear shifting fork axle sleeve；9, block selecting axis reverses gear card slot；10, block selecting axis
Low gear card slot；11, block selecting axis high gear card slot；12, block selecting axis fixture block；13,3/4 gear selector fork axle sleeve high gear card slot；
14,3/4 gear selector fork axle sleeve low gear card slot；15,3/4 gear selector fork axle sleeve reverses gear card slot；16,1/2 gear selector fork
Axle sleeve high gear card slot；17,1/2 gear selector fork axle sleeve low gear card slot；18,1/2 gear selector fork axle sleeve reverses gear card slot；
19, reverse gear shifting fork axle sleeve high gear card slot；20, reverse gear shifting fork axle sleeve low gear card slot；21, reverse gear shifting fork axis
Cover the card slot that reverses gear；22, commutating tooth；23, bidirectional ratchet tooth；24,3/4 gear shift shifting block；25,1/2 gear shift shifting block；26, it reverses gear
Shift shifting block；27,3/4 gear selector fork；28,1/2 gear selector fork；29, reverse gear shifting fork.
Specific embodiment
The core of the application is to provide a kind of gearshift, and the gearshift the space occupied is small, and structure is simple, not rapid wear
It is bad, it is not easy to off-gear, using reliable.Another core of the application is to provide a kind of gearbox including above-mentioned gearshift.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is a kind of structural representation of specific embodiment of gearshift provided herein
Figure；Fig. 2 is the structural schematic diagram of block selecting axis and gear lever in gearshift provided herein；Fig. 3 is provided herein
Gearshift in reference axis and selector fork axle sleeve structural schematic diagram.
In this embodiment, gearshift includes:
Shell 5, block selecting axis 4 are mounted on inside shell 5, also, the both ends of block selecting axis 4 are erected on shell 5；
Block selecting axis 4, the axial direction of block selecting axis 4, which at least arranges, is equipped with the first card slot and the second card slot, the first card slot and the second card
Slot is circumferentially with bending extension and straight portion along block selecting axis 4, bends extension and straight portion smooth excessiveness,
Also, the bending extension of the first card slot is opposite with the straight portion position of the second card slot, the straight portion of the first card slot with
The bending extension position of second card slot is opposite；Specifically, bending extension and the second card slot of the first card slot is straight
Part projects in the axial direction of block selecting axis 4 and is overlapped, and the straight portion of the first card slot and the bending extension of the second card slot are being selected
It projects and is overlapped in the axial direction of gear shaft 4；
Reference axis 3, reference axis 3 are installed on shell 5；
First shift fork axle sleeve and the second shift fork axle sleeve, the first shift fork axle sleeve and the second shift fork axle sleeve are set in reference axis 3
Above and can be along reference axis 3 in axial sliding, the first shift fork axle is put on equipped with the first shift shifting block, and the second shift fork axle, which is put on, to be equipped with
Second shift shifting block, the first shift shifting block are located in the first card slot, and the second shift shifting block is located in the second card slot, and the first shift is dialled
Block and second shift shifting block can block selecting axis 4 rotate during under the drive of the first card slot and the second card slot along choosing
The axial movement of gear shaft 4.
Specifically, the second shift shifting block is positioned at the when the first shift shifting block is located at the bending extension of the first card slot
The straight portion of two draw-in groove rotates block selecting axis 4 at this time, and the first shift shifting block can move left and right, and the position of the second shift shifting block is not
Become；When the first shift shifting block is located at the straight portion of the first card slot, the bending that the second shift shifting block is located at the second card slot extends
Part rotates block selecting axis 4 at this time, and the first shift shifting block position is constant, and the meeting of the second shift shifting block moves left and right.
What needs to be explained here is that above-mentioned straight portion refer to along block selecting axis 4 circumferentially around card slot part.
On the basis of the respective embodiments described above, third card slot is additionally provided on block selecting axis 4, third card slot includes along block selecting axis
4 third gear card slot circumferentially around setting and the third being obliquely installed are reversed gear card slot, third gear card slot and third gear
Card slot connection；It further include being set on reference axis 3 and can be along the back fork axle sleeve in axial sliding of reference axis 3, back fork
Reverse gear shifting fork 29 is installed on axle sleeve, back fork axle sleeve is equipped with the shifting block 26 of shifting gears that reverses gear, reverse gear shift gears shifting block 26 can
Third reverse gear card slot drive under along block selecting axis 4 axial movement；First card slot includes that the first gear card slot and first falls
Block card slot, the second card slot include that the second gear card slot and second are reversed gear card slot；Block selecting axis 4 can move along its axis, block selecting axis 4
Axial direction of the rotational plane perpendicular to block selecting axis 4；When the first shift shifting block is located in the first gear card slot, the second shift shifting block is located at
In second gear card slot, the shifting block 26 of shifting gears of reversing gear is located in third gear card slot；It reverses gear card when the first shift shifting block is located at first
In slot, the second shift shifting block, which is located at, second to reverse gear in card slot, and the shifting block 26 of shifting gears of reversing gear is located at third and reverses gear in card slot.
On the basis of the respective embodiments described above, block selecting axis 4 is equipped with block selecting axis fixture block 12, at least provided with ring on shell 5
The block selecting gear card slot and block selecting axis of shape reverse gear card slot 9, and during block selecting axis 4 moves axially, block selecting axis fixture block 12 can divide
The position of card slot 9 of not reversing gear with block selecting gear card slot or block selecting axis is corresponding.Also, block selecting gear card slot and block selecting axis reverse gear card slot
9 are connected at neutral gear position, can satisfy block selecting axis fixture block 12 and reverse gear changing between card slot 9 in block selecting gear card slot and block selecting axis
Gear demand.
On the basis of the respective embodiments described above, the end of block selecting axis 4 is equipped with gear lever 2, and the rotation of gear lever 2 is flat
Face is equipped with commutating tooth 22 and bidirectional ratchet tooth 23, commutating tooth perpendicular to the axial direction of block selecting axis 4 between gear lever 2 and block selecting axis 4
22 and bidirectional ratchet tooth 23 setting, gear lever 2 can be made without rotating complete cycle, can realize that the complete cycle of block selecting axis 4 turns
It is dynamic.
On the basis of the respective embodiments described above, it is equipped on gear lever 2 for changing the commutation in 2 locking direction of gear lever
Switch 1, reversing switch 1 are connect with commutating tooth 22, by rotating reversing switch 1, so that gear lever 2 drives choosing along clockwise direction
Gear shaft 4 rotates, or drives block selecting axis 4 to rotate in the counterclockwise direction.
On the basis of the respective embodiments described above, bending extension includes two bendings at left and right sides of neutral gear position
Point is then respectively at a gear and second gear, when corresponding the when corresponding first shift shifting block is overlapped with two inflection points respectively
When two shift shifting blocks are overlapped with two inflection points respectively, then three gears and four gears are respectively at.
On the basis of the respective embodiments described above, the first shift fork axle, which is put on, is equipped with the first selector fork, the second shift fork axle
It puts on and the second selector fork is installed.
On the basis of the respective embodiments described above, the first card slot includes that the first low gear card slot arranged in parallel and first are high
Gear card slot, the second card slot include the second low gear card slot and the second high gear card slot arranged in parallel；It is elected to gear shaft 4 along axial direction
It is corresponding with the first low gear groove position to be moved to the first shift shifting block, and the second shift shifting block and the second low gear groove position
The state that slowly runs is in jack shaft when corresponding to；Elected gear shaft 4 is axially moveable high to the first shift shifting block and first
Gear groove position is corresponding, and the second shift shifting block and the second high gear groove position to it is corresponding when jack shaft in high
Fast rotary state.
On the basis of the respective embodiments described above, the first card slot further includes first reversing gear card slot, and the second card slot further includes
Second-speculation's block card slot, the first low gear card slot, the first high gear card slot and first reverse gear card slot in neutral gear position Shi Liantong, the second low gear
Position card slot, the second high gear card slot and second reverse gear card slot in neutral gear position Shi Liantong.Wherein, first card slot and second that reverses gear reverses gear
Card slot is surround along the circumferential direction of block selecting axis 4 is straight, i.e., first reverse gear card slot and second reverse gear slot and block selecting axis 4 circumferencial direction it is flat
Row, and the reverse gear circumferencial direction of card slot and block selecting axis 4 of third is equipped with angle, is obliquely installed, also, third reverses gear card slot to separate
The direction of third gear card slot tilts.
On the basis of the respective embodiments described above, the block selecting gear card slot of shell 5 includes 11 He of block selecting axis high gear card slot
Block selecting axis low gear card slot 10, block selecting axis low gear card slot 10 is located at block selecting axis high gear card slot 11 and block selecting axis reverses gear card slot 9
Between.
Further, the third gear card slot in third card slot includes third high gear card slot and third low gear card slot, and
Three high gear card slots and third low gear card slot are annular slot, for being shifted gears in the shift process of forward gear for reversing gear
Shifting block 26 is placed.
Specifically, the provided gearshift of the present embodiment, when the gearshift includes high gear and low gear, also, one
When being equipped with two gears in a gear card slot, then the first shift fork axle sleeve is: 1/2 (5/6) keeps off selector fork axle sleeve 7；Second shift fork axle
Set is are as follows: 3/4 (7/8) keeps off selector fork axle sleeve 6；First high gear card slot is are as follows: 1/2 gear selector fork axle sleeve high gear card slot
16, the first low gear card slot is are as follows: 1/2 gear selector fork axle sleeve low gear card slot 17, first reverses gear card slot i.e. are as follows: 1/2 gear changes
Gear shift fork axle sleeve reverses gear card slot 18；Second high gear card slot is are as follows: 3/4 gear selector fork axle sleeve high gear card slot 13, second is low
Gear card slot is are as follows: 3/4 gear selector fork axle sleeve low gear card slot 14, second reverses gear card slot i.e. are as follows: 3/4 gear selector fork axle sleeve
Reverse gear card slot 15；Third high gear card slot is are as follows: reverse gear shifting fork axle sleeve high gear card slot 19, third low gear card slot are
Are as follows: reverse gear shifting fork axle sleeve low gear card slot 20, third reverses gear card slot i.e. are as follows: reverse gear shifting fork axle sleeve reverses gear card: 21；The
Two shift shifting blocks be are as follows: 3/4 gear shift shifting block 24, first shift shifting block be are as follows: 1/2 gear shift shifting block 25；Second selector fork
I.e. are as follows: 3/4 gear selector fork 27；First selector fork is are as follows: 1/2 gear selector fork 28.
Assembling structure is known by Fig. 1,1/2 gear selector fork axle sleeve 7,3/4 gear, 6 and of selector fork axle sleeve is cased on reference axis 3
Reverse gear shifting fork axle sleeve 8, this three axis opposite can slide on reference axis 3, and reference axis 3 is fixed on immovable on shell 5.
Block selecting axis 4 is also fitted on shell 6, and only corresponding in block selecting axis fixture block 12 can just rotate in card slot, the rotation of block selecting axis 4
It is bidirectional ratchet structure inside gear lever 2 by the rotation of gear lever 2, when reversing switch 1 drives commutating tooth 22 to go to counterclockwise
Bottom, gear lever 2 only drives block selecting axis 4 to rotate counterclockwise at this time, when reversing switch 1 drive commutating tooth 22 move clockwise to bottom,
Gear lever 2 only drives block selecting axis 4 to rotate clockwise at this time, and thus can satisfy this gear shifting structure both can also be with into gear
It moves back gear or hangs and reverse gear, gear lever 2 can also be moved left and right with block selecting axis 4.
It is as follows to switch gear process: the block selecting axis fixture block 12 on block selecting axis 4 corresponds to block selecting axis under no external force state
Low gear card slot 10, the shift shifting block of such three selector fork axle sleeves is also all corresponded in low gear card slot, and reversing switch 1 is suitable
Hour hands push bottom, then rotate clockwise gear lever 2 and rotate 72 °, and shifting gears shifting block 25 in 0 ° to the 72 ° gear of period 1/2 will be along 1/2
Gear low gear card slot 17 moves right, and when going to 72 °, 1/2 gear shift shifting block 25 moves on to right end, while 1/2 gear shift is dialled
Block 25 drives 1/2 gear selector fork axle sleeve 7 and 1/2 to keep off selector fork 28 and moves on to right end, and 3/4 gear changes in this process
It keeps off shifting block 24 and reverses gear and shift gears the corresponding low gear card slot of shifting block 26 as straight portion so can't move, switch in this way
1 blocks.Later gear lever is rotated to 72 ° counterclockwise and return to original position, due to using bidirectional ratchet structure so only shifting gears at this time
Bar 2, which rotates counterclockwise, returns to original position, and block selecting axis 4 can't rotate counterclockwise.Because each card slot has set corresponding
Gear curve, so 1/2 gear shift shifting block 25 drives 1/2 gear selector fork after followed by gear lever 2 is rotated clockwise 72 °
Axle sleeve 7 and 1/2 keeps off selector fork 28 and moves on to left end, switches to 2 in this way and blocks.
Gear lever 2 is equally rotated counterclockwise 72 ° and returns to original position, then rotates clockwise 72 °, between 0 ° to 36 °, 1/2 gear
It is neutral position state that shift shifting block 25, which drives 1/2 gear selector fork axle sleeve 7 and 1/2 to keep off selector fork 28 and move on to intermediate, is arrived at 36 °
72 °, 3/4 gear shift shifting block 24 drives 3/4 gear selector fork axle sleeve 6 and 3/4 to keep off selector fork 27 and moves on to right end, switches at this time
To 3 gears.72 ° will be rotated clockwise again after 2 return of gear lever, 3/4 gear shift shifting block 24 drives 3/4 gear 6 He of selector fork axle sleeve
3/4 gear selector fork 27 moves on to left end, is switched to 4 at this time and blocks.72 ° will be rotated clockwise again after 2 return of gear lever, at this time
Block selecting axis 4 just has rotated 360 ° and returns to most initial state as neutral gear and can then carry out selection high gear.
Bar 2 is pushed off at this time to right end, and block selecting axis fixture block 12 corresponds to block selecting axis high gear card slot 11, because of block selecting axis 4
On high gear card slot as the curve of low gear card slot, only the initial speed of corresponding input is different, so repetition
Preceding gear shifting action can complete the switching of 5/6/7/8 gear.
Gear lever 2 is drawn in the initial state and arrives left end, block selecting axis fixture block 12 corresponds to block selecting axis and reverses gear card slot 9, will change
After pushing bottom counterclockwise to switch 1, by 72 ° of the rotation counterclockwise of gear lever 2, the shifting block 26 of shifting gears of reversing gear follows reverse gear shifting fork axis
Covering the card slot 21 that reverses gear drives gear selector fork axle sleeve 8 and reverse gear shifting fork 29 to move on to right end, is just switched on reversing gear at this time,
It is not needed at this time by 2 return of gear lever, after reversing switch 1 is pushed bottom clockwise, gear lever 2 is rotated clockwise 72 °, is returned to
Most initial neutral position state.It is similar to switching mode of reversing gear, when moving back gear, after reversing switch 1 is first pushed bottom counterclockwise, then
72 ° of the rotation counterclockwise of gear lever 2 moves back the operation of gear with regard to completion at this time 2 return of gear lever.
The there is provided gearshift of the present embodiment, has the advantages that
1, the axial line of three shift fork axle sleeves is smaller than traditional approach the space occupied on same straight line, and structure is more simple
It is single, it is hardly damaged；
2, the plane where the direction of rotation of block selecting axis 4 is vertical with the moving direction of selector fork axle sleeve, and gearbox is in work
It will not off-gear during work；
3, when exchanging gear for, the shift shifting block of each selector fork axle sleeve has oneself corresponding card slot, can only change every time
Unique gear is taken, locking frame is not needed, simplifies the structure；
4, there are three nodes of locations for 4, block selecting axis, and guarantee it in low gear position under no any external force state
On node, move left and right just can switch to other two nodes of locations so on earth, when block selecting more quick and precisely, easy to operate
Change.
5, due to using bidirectional ratchet structure inside gear lever 2, gear lever 2 may return to original position after having switched gear,
So ensure that gear lever 2 is completed in default fixed angle into keeping off, move back gear or switching is reversed gear, it is living without rotating a circle
Dynamic space is small to be easier to realize.
Other than above-mentioned gearshift, present invention also provides a kind of gearbox including above-mentioned gearshift, the changes
Refer to the prior art for other Each parts of fast case, and repeats no more herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.Above to provided herein
Gearshift is described in detail.Specific case used herein explains the principle and embodiment of the application
It states, the description of the example is only used to help understand the method for the present application and its core ideas.It should be pointed out that for this skill
For the those of ordinary skill in art field, under the premise of not departing from the application principle, several change can also be carried out to the application
Into and modification, these improvement and modification also fall into the protection scope of the claim of this application.
Claims (10)
1. a kind of gearshift characterized by comprising
Shell (5)；
Block selecting axis (4), the axial direction of the block selecting axis (4), which at least arranges, is equipped with the first card slot and the second card slot, first card slot
It is circumferentially with bending extension and straight portion along the block selecting axis (4) with second card slot, the bending extends
Part and the straight portion smooth excessiveness, also, the bending extension of first card slot and second card slot is flat
Straight portion is opposite, and the straight portion of first card slot is opposite with the bending extension position of second card slot；
Reference axis (3), the reference axis (3) are installed on the shell (5)；
It is set on the reference axis (3) and can be along the first shift fork axle sleeve in axial sliding of the reference axis (3) and second group
Fork shaft set, first shift fork axle are put on equipped with the first shift shifting block, and second shift fork axle is put on equipped with the second shift shifting block,
The first shift shifting block is located in first card slot, and the described second shifting block of shifting gears is located in second card slot, and described the
One shift shifting block and the second shift shifting block can be during the block selecting axis (4) rotate in first card slot and institute
It states under the drive of the second card slot along the axial movement of the block selecting axis (4).
2. gearshift according to claim 1, which is characterized in that be additionally provided with third card slot, institute on the block selecting axis (4)
Stating third card slot includes that third gear card slot along the block selecting axis (4) circumferentially around setting and the third being obliquely installed are reversed gear
Card slot, the third card slot that reverses gear are connected to the third gear card slot；It further include being set on the reference axis (3) and can edge
The back fork axle sleeve in axial sliding of the reference axis (3) is equipped with reverse gear shifting fork on the back fork axle sleeve
(29), the back fork axle sleeve is equipped with and reverses gear shift gears shifting block (26), it is described reverse gear shift gears shifting block (26) can be in the third
It reverses gear under the drive of card slot along the axial movement of the block selecting axis (4)；First card slot includes the first gear card slot and the
One reverses gear card slot, and second card slot includes that the second gear card slot and second are reversed gear card slot；The block selecting axis (4) can be along its axial direction
It is mobile, the axial direction of the rotational plane of the block selecting axis (4) perpendicular to the block selecting axis (4)；It is described to work as the first shift shifting block
In the first gear card slot, the second shift shifting block is located in the second gear card slot, and the shift of reversing gear is dialled
Block (26) is located in third gear card slot；It reverses gear in card slot when the first shift shifting block is located at described first, described second changes
Gear shifting block, which is located at, described second to reverse gear in card slot, and the shifting block (26) of shifting gears of reversing gear is located at third and reverses gear in card slot.
3. gearshift according to claim 2, which is characterized in that the block selecting axis (4) is equipped with block selecting axis fixture block
(12), the block selecting gear card slot and block selecting axis on the shell (5) at least provided with annular reverse gear card slot (9), in the block selecting axis
(4) during moving axially, the block selecting axis fixture block (12) can be fallen with the block selecting gear card slot or the block selecting axis respectively
The position of block card slot (9) is corresponding.
4. gearshift according to claim 3, which is characterized in that the end of the block selecting axis (4) is equipped with gear lever
(2), axial direction of the rotational plane of the gear lever (2) perpendicular to the block selecting axis (4), the gear lever (2) and the block selecting
Commutating tooth (22) and bidirectional ratchet tooth (23) are equipped between axis (4)；It is equipped on the gear lever (2) for changing the shift
The reversing switch (1) in bar (2) locking direction.
5. gearshift according to claim 3, which is characterized in that the bending extension includes being located at neutral gear position or so
Then locate respectively when the corresponding first shift shifting block is overlapped with two inflection points respectively two inflection points of two sides
Three are then respectively at when the corresponding second shift shifting block is overlapped with two inflection points respectively in a gear and second gear
Gear and four gears.
6. gearshift according to claim 3, which is characterized in that first shift fork axle, which is put on, is equipped with the first shift
Shift fork, second shift fork axle, which is put on, is equipped with the second selector fork.
7. according to gearshift described in claim 3 to 6 any one, which is characterized in that first card slot includes parallel
The the first low gear card slot and the first high gear card slot of arrangement, second card slot includes the second low gear card slot arranged in parallel
With the second high gear card slot；When the block selecting axis (4) is axially moveable to the first shift shifting block and the first low gear groove position
It is corresponding, and the second shift shifting block and the second low gear groove position to it is corresponding when jack shaft in the state that slowly runs；When
The block selecting axis (4) be axially moveable to first shift shifting block it is corresponding with the first high gear groove position, and second shift gears shifting block
With the second high gear groove position to it is corresponding when jack shaft be in high-speed rotation state.
8. gearshift according to claim 7, which is characterized in that the block selecting gear card slot of the shell (5) includes choosing
Gear shaft high gear card slot (11) and block selecting axis low gear card slot (10), it is high that block selecting axis low gear card slot (10) is located at the block selecting axis
Gear card slot (11) and the block selecting axis reverse gear between card slot (9).
9. gearshift according to claim 7, which is characterized in that first card slot further includes first reversing gear card slot,
Second card slot further includes second reversing gear card slot, the first low gear card slot, the first high gear card slot and described
One reverses gear card slot in neutral gear position Shi Liantong, and the second low gear card slot, the second high gear card slot and described second are reversed gear
Card slot is in neutral gear position Shi Liantong.
10. a kind of gearbox, including gearshift, which is characterized in that the gearshift is claim 1 to 9 any one
The gearshift.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822058491.1U CN209430752U (en) | 2018-12-07 | 2018-12-07 | A kind of gearbox and its gearshift |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058491.1U CN209430752U (en) | 2018-12-07 | 2018-12-07 | A kind of gearbox and its gearshift |
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| CN209430752U true CN209430752U (en) | 2019-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357007A (en) * | 2018-12-07 | 2019-02-19 | 上海索达传动机械有限公司 | A kind of gearbox and its gearshift |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357007A (en) * | 2018-12-07 | 2019-02-19 | 上海索达传动机械有限公司 | A kind of gearbox and its gearshift |
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