CN109340362A - Speed changer and its gearshift - Google Patents
Speed changer and its gearshift Download PDFInfo
- Publication number
- CN109340362A CN109340362A CN201811451463.4A CN201811451463A CN109340362A CN 109340362 A CN109340362 A CN 109340362A CN 201811451463 A CN201811451463 A CN 201811451463A CN 109340362 A CN109340362 A CN 109340362A
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- gear
- input shaft
- shaft
- transmission shaft
- gearshift
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- 230000005540 biological transmission Effects 0.000 claims abstract description 89
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
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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
- F16H63/32—Gear shift yokes, e.g. shift forks
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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
- F16H2306/00—Shifting
Abstract
The present invention relates to a kind of speed changer and its gearshifts.Gearshift is contained in the shell of speed changer.Gearshift includes input shaft, transmission shaft, power shift gear system and gear shifting pulling head.Input shaft is rotatably penetrated and arranged in the inner wall of shell.Transmission shaft is rotatably penetrated and arranged in the inner wall of shell and and interval setting parallel with input shaft.Power shift gear system includes input shaft gear, shaft gear and shifting block gear, and transmission shaft is sequentially connected by shaft gear and input shaft, and input shaft gear is rotationally sheathed on input shaft and connect with transmission shaft driven.Shifting block gear is rotationally sheathed on transmission shaft, and is sequentially connected with input shaft gear.Gear shifting pulling head is fixedly connected with shifting block gear.Speed changer and its gearshift manufacturing cost provided by the invention is lower.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of speed changers and its gearshift.
Background technique
With the fast development of automobile industry, as the speed changer of automobile important component, also need to adapt to automobile industry
Variation, therefore, a kind of based on AMT Platform Designing, the speed changer with preferable reliability and transmission efficiency comes into being.
Speed changer includes shell and gearshift, and gearshift is contained in shell, for shifting gears to automobile.
Gearshift generally includes ball screw, thread bush and gear shifting pulling head, is rotated by screw rod and drives thread bush and change
Shifting block translation is kept off, to realize shift.However, ball screw price is higher, cause the manufacturing cost of speed changer higher.
Summary of the invention
Based on this, it is necessary to for traditional higher problem of speed changer manufacturing cost, it is lower to provide a kind of manufacturing cost
Speed changer and its gearshift.
A kind of gearshift, is contained in the shell of speed changer, and the gearshift includes:
Input shaft is rotatably penetrated and arranged in the inner wall of the shell；
Transmission shaft is rotatably penetrated and arranged in the inner wall of the shell and and interval setting parallel with the input shaft；
Power shift gear system, including input shaft gear, shaft gear and shifting block gear, the transmission shaft pass through the transmission
Shaft gear and the input shaft are sequentially connected, the input shaft gear be rotationally sheathed on the input shaft and with the transmission
Axis transmission connection, the shifting block gear is rotationally sheathed on the transmission shaft, and is sequentially connected with the input shaft gear；And
Gear shifting pulling head is fixedly connected with the shifting block gear.
The input shaft and the transmission shaft are gear shaft in one of the embodiments, the shaft gear set
And if be fixed on the transmission shaft, and engage with the input shaft, the input shaft gear include the first meshing gear and with institute
The second meshing gear of the relatively fixed setting of the first meshing gear is stated, first meshing gear is engaged with the transmission shaft, institute
Shifting block gear is stated to engage with second meshing gear.
In one of the embodiments, the transmission shaft radially, the shifting block gear is located at the transmission shaft tooth
Between wheel and first meshing gear.
It in one of the embodiments, further include two locating parts, axial direction of two locating parts along the transmission shaft
Interval setting forms limiting section, and the shifting block gear is located at the limiting section.
In one of the embodiments, the locating part be circlip, the surface of the transmission shaft open up there are two interval set
The annular groove set, two circlips and the annular groove correspond, and the circlip part is fastened in the annular groove.
It in one of the embodiments, further include shift motor, the shift motor and the input shaft are sequentially connected.
It in one of the embodiments, further include controller and sensor, the controller and the sensor and described
Shift motor electrical connection, the sensor are used to acquire the location information of the shift fork, and the controller can be according to the position
Information triggers the shift motor on or off.
It in one of the embodiments, further include fixed link and deck, the deck is rotatablely arranged at the sensing
Device, the both ends of the fixed link are fixedly connected with the input shaft gear and the deck respectively.
Card slot is provided on the deck in one of the embodiments, one end of the fixed link is fastened in the card
The protrusion of surface of slot, the input shaft gear forms protrusion, and the other end of the fixed link forms hollow fitting portion, the set
Conjunction portion is arranged and is fixed on the protrusion.
A kind of speed changer, comprising:
Shell in hollow structure；
Shift fork axle is arranged in the shell, and axially slidable along its；And
Above-mentioned gearshift, the gearshift are contained in the shell, the gear shifting pulling head operationally with it is described
Shift fork axle transmission connection, to drive the shift fork axle to slide axially along it.
Above-mentioned speed changer and its gearshift, since transmission shaft is sequentially connected by shaft gear and input shaft,
Input shaft rotation, can drive transmission shaft to rotate.Further, input shaft gear is rotationally sheathed on input shaft and and transmission shaft
Transmission connection, and shifting block gear is rotationally sheathed on transmission shaft, and is sequentially connected with input shaft gear, therefore transmission shaft rotates,
The rotation of shifting block gear can be driven by input shaft gear.And gear shifting pulling head is fixedly connected with shifting block gear, therefore, gear shifting pulling head will
Shifting block gear is followed to rotate together, to realize shift.Above-mentioned speed changer and its gearshift pass through simple gear drive generation
It shifts gears for screw rod transmission, manufacturing cost is lower.
Detailed description of the invention
Fig. 1 is that input shaft, transmission shaft and the power shift gear system of gearshift in present pre-ferred embodiments are contained in shell
Interior structural schematic diagram；
Fig. 2 is the sectional view of gearshift shown in FIG. 1；
Fig. 3 is the overall structure diagram of gearshift in present pre-ferred embodiments.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
The present invention provides a kind of speed changer and its gearshift.
Referring to Fig. 1, the speed changer in present pre-ferred embodiments includes shell, shift fork axle and gearshift 100.
Shell is in hollow structure.Shell is for accommodating shift fork axle and gearshift 100.Generally, shell need to by have compared with
Alloy, plastic-steel or other high molecular materials of good mechanical strength are made, to prevent shell to be broken in the process of work.
Shift fork axle is arranged in shell, and axially slidable along its, to realize shift.
Gearshift 100 is contained in shell, and gearshift 100 is operationally sequentially connected with shift fork axle, is dialled with driving
Fork shaft slides axially along it.Specifically, gearshift 100 can rotate forward or backwards.When gearshift 100 rotates in the forward direction,
With shift fork axle be sequentially connected, and drive shift fork axle to slide axially along it, it can be achieved that a gear conversion.When gearshift 100
When reversely rotating, gearshift 100 can drive shift fork axle reverse slide, it can be achieved that another gear conversion.
Please refer to figs. 2 and 3 together, and the gearshift 100 in present pre-ferred embodiments includes input shaft 110, transmission
Axis 120, power shift gear system (figure is not marked) and gear shifting pulling head 190.Gearshift 100 be contained in the shell of speed changer, it can be achieved that
Shift of transmission.
Input shaft 110 is rotatably penetrated and arranged in the inner wall of shell.Input shaft 110 is the power input shaft 110 of gear shifting structure.
Specifically, input shaft 110 can be realized by motor, cylinder or drive mechanism and be rotated.Specifically in the present embodiment, gearshift
100 include shift motor 150.Shift motor 150 and input shaft 110 are sequentially connected.
Shift motor 150 can be rotated forward or backwards, drive input shaft 110 to carry out forward direction by shift motor 150
Or reversed rotation, gear shifting pulling head 190 can be driven to rotate forward or backwards, to realize the conversion of two gears.
Specifically, shift motor 150 can be realized by driving member or drive mechanism and input shaft 110 and is sequentially connected, tool
In the present embodiment, shift motor 150 has output shaft 151 to body, and the end of output shaft 151 is set as flat, input shaft 110
One end end face open up fluted 112, the end of output shaft 151 is fastened in groove 112, with realize shift motor 150 and input
The transmission connection of axis 110.
End by the way that output shaft 151 is arranged is flat and opens up groove 112 in the end face of input shaft 110, so that changing
Gear motor 150 and input shaft 110 are realizing the trouble that driving member can be also eliminated the need for while transmission connection, consequently facilitating mitigating
The weight of input shaft 110, thus there is preferable ensuring smooth transmission.
Transmission shaft 120 is rotatably penetrated and arranged in the inner wall of shell and and interval setting parallel with input shaft 110.Specifically,
Input shaft 110 can be sequentially connected with transmission shaft 120, and the power of input shaft 110 is transferred to transmission shaft 120.In the transmission,
Shift fork axle extends along perpendicular to 120 axially direction of transmission shaft.In the present embodiment, input shaft 110 and transmission shaft 120 can pass through
Bearing is installed on the inner wall of shell.In order to reach input shaft 110 and the better axial limiting of transmission shaft 120, the inner wall of shell with
Input shaft 110 and 120 position corresponding position of transmission shaft are additionally provided with washer, and the both ends of input shaft 110 and transmission shaft 120 pass through respectively
The inner wall of washer and shell is limited in shell.
Power shift gear system includes input shaft gear 131, shaft gear 132 and shifting block gear 133.Transmission shaft 120 passes through
Shaft gear 132 and input shaft 110 are sequentially connected.Input shaft gear 131 be rotationally sheathed on input shaft 110 and with transmission
Axis 120 is sequentially connected.Shifting block gear 133 is rotationally sheathed on transmission shaft 120, and is sequentially connected with input shaft gear 131.It changes
Gear shifting block 190 is fixedly connected with shifting block gear 133.
Specifically, transmission shaft 120 is sequentially connected by shaft gear 132 and input shaft 110, and therefore, input shaft 110 can
Transmission shaft 120 is driven to rotate by shaft gear 132.And input shaft gear 131 is rotationally sheathed on input shaft 110, and
It is sequentially connected with transmission shaft 120.Therefore transmission shaft 120 rotates, and input shaft gear 131 can be driven to rotate.Further, shifting block gear
133 are sheathed on transmission shaft 120, and are sequentially connected with input shaft gear 131, gear shifting pulling head 190 and the fixed company of shifting block gear 133
It connects.Therefore, the power of input shaft 110 passes through shaft gear 132, transmission shaft 120, input shaft gear 131 and shifting block gear 133
It is transferred to gear shifting pulling head 190, to drive gear shifting pulling head 190 to rotate.Then, gear shifting pulling head 190 is operationally driven with shift fork axle
Connection, can shift fork axis slide axially along it, with realize shift.Above-mentioned speed changer and its gearshift 100, by simple
Gear drive replaces screw rod to shift gears, and has lower manufacturing cost.
Specifically, input shaft 110 and transmission shaft 120 can be that gear shaft or input shaft 110 and transmission shaft 120 can also
Think simple transmission shaft 120, be provided with driving gear, be sequentially connected by driving gear and power shift gear system, is realized
The power of input shaft 110 is transferred to selector fork.Specifically in the present embodiment, input shaft 110 and transmission shaft 120 are gear
Axis, shaft gear 132 is arranged and is fixed on transmission shaft 120, and engages with input shaft 110.Input shaft gear 131 includes first
Meshing gear 1312 and the second meshing gear 1313 for fixing setting relatively with the first meshing gear 1312, the first meshing gear
1312 engage with transmission shaft 120, and shifting block gear 133 is engaged with the second meshing gear 1313.
It is gear shaft by setting input shaft 110 and transmission shaft 120, avoids another on input shaft 110 and transmission shaft 120
The trouble that outer setting sliding tooth wheel is engaged with power shift gear system, so that input shaft 110, transmission shaft 120 and power shift gear system
Between the kind of drive it is simple to operation.
Specifically, input shaft engaging section 111, input shaft engaging section 111 and shaft gear are provided on input shaft 110
132 engagements, are transferred to transmission shaft 120 for the power of input shaft 110.Transmission shaft engaging section 121 is provided on transmission shaft 120,
Transmission shaft engaging section 121 is engaged with the first meshing gear 1312, the power of transmission shaft 120 can be transferred to the first meshing gear
1312.Further, the second meshing gear 1313 and the first meshing gear 1312 are fixedly installed, and engage with shifting block gear 133,
And gear shifting pulling head 190 is fixed on shifting block gear 133, therefore, the power of the first meshing gear 1312 can pass through the second meshing gear
1313, shifting block gear 133 is transferred to gear shifting pulling head 190, and then gear shifting pulling head 190 can rotate.Gear shifting pulling head 190 and shift fork
Axis abut, can shift fork axis slide axially along it, with realize shift.
It should be noted that shift fork axle realizes that the displacement of shift is smaller by sliding due to during shift
, because the inner wall excessive and with shell of shift fork axle slide displacement, which occurs to hit, in order to prevent leads to input shaft 110 and shell
Service life reduces, and in the present embodiment, sets sector gear for the first meshing gear 1312.Along the circumference side of sector gear
It is circular arc to one section, one section is broached-tooth design and engages with transmission shaft 120.The setting length of entire broached-tooth design is shift fork axle
Moveable maximum length.By the way that suitable sawtooth length is arranged, so that shift fork axle can be slided according to preset displacement, thus
Realization is accurately shifted gears.
In the present embodiment, to prevent the second meshing gear 1313 and the first meshing gear 1312 from sending out during installation
It is raw to swing, the second meshing gear 1313 and the first meshing gear 1312 need to axially and radially be limited.Specifically, due to
Two meshing gears 1313 and the first meshing gear 1312 are sheathed on input shaft 110, and therefore, input shaft 110 can be engaged to second
Gear 1313 and the first meshing gear 1312 provide radial support power, to play radial position-limiting action.It specifically, can also be second
Meshing gear 1313 and the respective two sides of the first meshing gear 1312 or the second meshing gear 1313 and the first meshing gear
The 1312 two sides setting locating pieces being located remotely from each other, locating piece are fixed on input shaft 110, and with the second meshing gear 1313 and first
1312 clearance fit of meshing gear, to carry out axial limiting to the second meshing gear 1313 and the first meshing gear 1312, therefore can
So that the second meshing gear 1313 and the first meshing gear 1312 have preferable kinetic stability.
In the present embodiment, transmission shaft 120 radially, shifting block gear 133 is located at shaft gear 132 and nibbles with first
It closes between gear 1312.
Specifically in this embodiment, transmission shaft engaging section 121 engages to form gear pair with the first meshing gear 1312, and second
Meshing gear 1313 and the first meshing gear 1312 are fixedly installed, and the second meshing gear 1313 is engaged with shifting block gear 133, and is dialled
Head gear 133 is between shaft gear 132 and gear pair, therefore, shaft gear 132, gear pair and the second engaging tooth
It takes turns 1313 pairs of shifting block gears 133 and forms radial support, the displacement in the radial direction of shifting block gear 133 is limited, thus is had preferable
Radial stability.
Further, in the present embodiment, gearshift 100 further includes two locating parts 140, two 140 edges of locating part
The axially spaced-apart of transmission shaft 120 is arranged to form limiting section, and shifting block gear 133 is located at limiting section.
By the way that two locating parts 140 are arranged, shifting block gear 133 is located at limiting section, axial direction can be carried out to shifting block gear 133
Positioning.
Therefore, comprehensive shifting block gear 133 is located between shaft gear 132 and the first meshing gear 1312 it is found that shifting block
The motion range axially and radially of gear 133 is defined, so that gearshift 100 has preferable motion stabilization
Property.
Further, in the present embodiment, locating part 140 is circlip.The surface of transmission shaft 120 is spaced there are two opening up
The annular groove 123 of setting, two circlips and annular groove 123 correspond, and circlip part is fastened in annular groove 123.
Circlip positioning method is simple, occupies little space, convenient for disassembly and assembly, therefore the installation effectiveness of gearshift 100 can be improved.Tool
Body, circlip part is fastened in annular groove 123, and therefore, circlip can be firmly fixed in annular groove 123, therefore can prevent card
Spring falls and influences the axially position effect of shifting block gear 133 from transmission shaft 120.And the prominent annular groove 123 in circlip part, and
With 133 clearance fit of shifting block gear, it can be achieved that the axially position of shifting block gear 133.
In the present embodiment, gearshift 100 further includes controller and sensor 160.It controller and sensor 160 and changes
It keeps off motor 150 to be electrically connected, sensor 160 is used to acquire the location information of shift fork, and controller can be triggered according to location information and be shifted gears
150 on or off of motor.
Specifically, sensor 160 acquires the location information of gear shifting pulling head 190, and is sent to controller, and controller can basis
The location information of gear shifting pulling head 190 controls 150 on or off of shift motor.Specifically, when needing to shift gears, controller to
Driving motor sends signal, and triggering driving motor driving input shaft 110 drives gear shifting pulling head 190 to rotate, so that shift fork axle can edge
It slides axially, and realizes shift.During shift, sensor 160 in real time feeds back to the location information of gear shifting pulling head 190
Controller.When gear shifting pulling head 190 moves to predeterminated position, controller controls shift motor 150 and cuts off, and input shaft 110 and changes
Gear shifting block 190 stops rotating, and shift is completed.
Therefore, by setting controller and sensor 160, the shift process of gearshift 100 can be monitored in real time,
Consequently facilitating realizing the automation and precision of shift.
Further, in the present embodiment, gearshift 100 further includes fixed link 170 and deck 180.Deck 180 can turn
It is set to sensor 160 dynamicly.The both ends of fixed link 170 are fixedly connected with input shaft gear 131 and deck 180 respectively.
Since sensor 160 is when obtaining the location information of gear shifting pulling head 190, the 160 covered detection zone of institute of sensor
Domain limited area, therefore, there are check frequencies for sensor 160 in order to prevent, therefore fixed link 170 and deck 180 is arranged.Sensor
160 are fixed on the inner wall of shell, and deck 180 is set to sensor 160, and relative sensors 160 can be rotated.Specifically, deck
180 are fixedly connected by fixed link 170 with input shaft gear 131.Therefore, the rotation of input shaft gear 131 can drive deck to rotate
180, so that 180 relative sensors 160 of deck rotate.Permanent magnet is provided on deck 180, sensor 160 can acquire permanent magnetism
The location information of body is simultaneously sent to controller, and controller believes the position that the location information of permanent magnet is converted into gear shifting pulling head 190
Breath, to control 150 on or off of shift motor.
Therefore, by setting deck 180 and fixed link 170, so that check frequency is not present in sensor 160, thus it is convenient for
Promote the precision of sensor 160 and location of controls detection.
In the present embodiment, card slot 181 is provided on deck 180, one end of fixed link 170 is fastened in card slot 181.Input
The protrusion of surface of shaft gear 131 forms protrusion 13121, and the other end of fixed link 170 forms hollow fitting portion 171, fitting portion
171 are arranged and are fixed on protrusion 13121.
Specifically in the present embodiment, fixed link 170 is fixed on the first meshing gear 1312.One end card of fixed link 170
It is held in card slot 181, to achieve a fixed connection with deck 180.Therefore the first meshing gear 1312 can drive card in the process of movement
Seat 180 is rotated, so that controller accurately obtains the location information of gear shifting pulling head 190.
In addition, in the present embodiment, fixed link 170 protrudes into one end adjustable in length of card slot 181, therefore, so that deck
180 and the first spacing between meshing gear 1312 it is adjustable.Therefore, by adjusting deck 180 and the first meshing gear 1312
Between spacing, may make sensor 160 to obtain accurate location information.
170 other end of fixed link is sheathed on protrusion 13121, to realize the fixation with the first meshing gear 1312.This kind of side
Formula is simple to operation, consequently facilitating improving installation effectiveness.
Further, in the present embodiment, protrusion 13121 is cylindrical pillar.Fitting portion 171 is hollow sleeve knot
Structure.Cylindrical pillar is arranged in tube-in-tube structure, and runs through tube-in-tube structure, fixed link 170 can be firmly fixed to the first engagement
Gear 1312.
Such set-up mode is simple and easy, convenient for the installation of fixed link 170.In addition, when cylindrical pillar is through entire set
When barrel structure, to prevent tube-in-tube structure from sliding along the axial direction of cylindrical pillar, axis can be set in the end of cylindrical pillar
To locating piece, to carry out axial limiting to tube-in-tube structure.Specifically in the present embodiment, tube-in-tube structure can also be carried out by circlip
Axial limiting.
Above-mentioned speed changer and its gearshift 100, since transmission shaft 120 is passed by shaft gear 132 and input shaft 110
Dynamic connection, therefore, input shaft 110 rotates, and transmission shaft 120 can be driven to rotate.Further, input shaft gear 131 is rotationally
It is sheathed on input shaft 110 and is sequentially connected with transmission shaft 120, and shifting block gear 133 is rotationally sheathed on transmission shaft 120, and
It is sequentially connected with input shaft gear 131, therefore transmission shaft 120 rotates, and can drive 133 turns of shifting block gear by input shaft gear 131
It is dynamic.And gear shifting pulling head 190 is fixedly connected with shifting block gear 133, therefore, gear shifting pulling head 190 will follow shifting block gear 133 to turn together
It is dynamic, to realize shift.Above-mentioned speed changer and its gearshift 100 are carried out by simple gear drive instead of screw rod transmission
Shift, manufacturing cost are lower.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of gearshift, is contained in the shell of speed changer, which is characterized in that the gearshift includes:
Input shaft is rotatably penetrated and arranged in the inner wall of the shell；
Transmission shaft is rotatably penetrated and arranged in the inner wall of the shell and and interval setting parallel with the input shaft；
Power shift gear system, including input shaft gear, shaft gear and shifting block gear, the transmission shaft pass through the transmission shaft tooth
Wheel is sequentially connected with the input shaft, and the input shaft gear is rotationally sheathed on the input shaft and passes with the transmission shaft
Dynamic connection, the shifting block gear is rotationally sheathed on the transmission shaft, and is sequentially connected with the input shaft gear；And
Gear shifting pulling head is fixedly connected with the shifting block gear.
2. gearshift according to claim 1, which is characterized in that the input shaft and the transmission shaft are gear
Axis, the shaft gear is arranged and is fixed on the transmission shaft, and engages with the input shaft, and the input shaft gear includes
First meshing gear and the second meshing gear of fixed setting opposite with first meshing gear, first meshing gear with
The transmission shaft engagement, the shifting block gear are engaged with second meshing gear.
3. gearshift according to claim 2, which is characterized in that the transmission shaft radially, the shifting block tooth
Wheel is between the shaft gear and first meshing gear.
4. gearshift according to claim 1, which is characterized in that further include two locating parts, two locating parts
It is arranged to form limiting section along the axially spaced-apart of the transmission shaft, the shifting block gear is located at the limiting section.
5. gearshift according to claim 4, which is characterized in that the locating part is circlip, the table of the transmission shaft
Face is opened up there are two spaced annular groove, and two circlips and the annular groove correspond, circlip part card
It is held in the annular groove.
6. gearshift according to claim 1, which is characterized in that it further include shift motor, the shift motor and institute
State input shaft transmission connection.
7. gearshift according to claim 6, which is characterized in that further include controller and sensor, the controller
It is electrically connected with the sensor and the shift motor, the sensor is used to acquire the location information of the shift fork, the control
Device processed can trigger the shift motor on or off according to the positional information.
8. gearshift according to claim 7, which is characterized in that further include fixed link and deck, the deck can turn
It is set to the sensor dynamicly, the both ends of the fixed link are fixedly connected with the input shaft gear and the deck respectively.
9. gearshift according to claim 8, which is characterized in that be provided with card slot, the fixed link on the deck
One end be fastened in the card slot, the protrusion of surface of the input shaft gear forms protrusion, and the other end of the fixed link is formed
Hollow fitting portion, the fitting portion are arranged and are fixed on the protrusion.
10. a kind of speed changer characterized by comprising
Shell in hollow structure；
Shift fork axle is arranged in the shell, and axially slidable along its；And
Gearshift as described in 1 to 9 any one of the claims, the gearshift are contained in the shell, institute
It states gear shifting pulling head to be operationally sequentially connected with the shift fork axle, to drive the shift fork axle to slide axially along it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451463.4A CN109340362A (en) | 2018-11-30 | 2018-11-30 | Speed changer and its gearshift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451463.4A CN109340362A (en) | 2018-11-30 | 2018-11-30 | Speed changer and its gearshift |
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| Publication Number | Publication Date |
|---|---|
| CN109340362A true CN109340362A (en) | 2019-02-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811451463.4A Pending CN109340362A (en) | 2018-11-30 | 2018-11-30 | Speed changer and its gearshift |
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| CN (1) | CN109340362A (en) |
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|---|---|---|---|---|
| EP0481168A1 (en) * | 1990-07-21 | 1992-04-22 | INA Wälzlager Schaeffler KG | Speed changing device |
| JP2003185013A (en) * | 2001-12-12 | 2003-07-03 | Hitachi Unisia Automotive Ltd | Gear shift control device for vehicle |
| US20050139024A1 (en) * | 2003-12-30 | 2005-06-30 | Industrial Technology Research Institute | Automatic gear transmission apparatus |
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| CN106286817A (en) * | 2016-11-10 | 2017-01-04 | 广州汽车集团股份有限公司 | shift actuator |
| CN106286802A (en) * | 2016-08-30 | 2017-01-04 | 常州东风无级变速器有限公司 | Variator and gear shifting actuating mechanism thereof |
| CN209398831U (en) * | 2018-11-30 | 2019-09-17 | 株洲齿轮有限责任公司 | Speed changer and its gearshift |
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| US20050139024A1 (en) * | 2003-12-30 | 2005-06-30 | Industrial Technology Research Institute | Automatic gear transmission apparatus |
| JP2009243562A (en) * | 2008-03-31 | 2009-10-22 | Honda Motor Co Ltd | Forward/reverse switching mechanism |
| CN201963858U (en) * | 2010-11-26 | 2011-09-07 | 长城汽车股份有限公司 | Automatic gearshift of automobile transmission |
| CN103016711A (en) * | 2012-12-25 | 2013-04-03 | 长城汽车股份有限公司 | Gear selecting and shifting actuating mechanism and automatic transmission |
| CN106286802A (en) * | 2016-08-30 | 2017-01-04 | 常州东风无级变速器有限公司 | Variator and gear shifting actuating mechanism thereof |
| CN106286817A (en) * | 2016-11-10 | 2017-01-04 | 广州汽车集团股份有限公司 | shift actuator |
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