CN206708343U - Manual transmission especially suitable for agricultural machinery - Google Patents
Manual transmission especially suitable for agricultural machinery Download PDFInfo
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- CN206708343U CN206708343U CN201720494068.9U CN201720494068U CN206708343U CN 206708343 U CN206708343 U CN 206708343U CN 201720494068 U CN201720494068 U CN 201720494068U CN 206708343 U CN206708343 U CN 206708343U
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Abstract
The utility model discloses a kind of manual transmission especially suitable for agricultural machinery, including casing, power input shaft and speed change wheel shaft on casing, change-speed gearing is provided with speed change wheel shaft, change-speed gearing is corresponded on casing and is provided with shift fork, it is characterised in that is provided between the power input shaft and speed change wheel shaft and rotates forward transmission mechanism and reversing driving, rotate forward transmission mechanism to be used to drive speed change wheel shaft to rotate forward, reversing driving is used to drive speed change wheel shaft reverse turn；Rotating switching control is additionally provided with the casing of power input shaft position, the rotating switching control can control rotating forward transmission mechanism to be connected with the respective input of reversing driving with power input shaft switching.The utility model there is locomotive to move forward and backward switching sensitivity is good, and rapid reaction is easy to control, trailer reversing flexibility is good and lower-cost advantage, is particularly suitable for using in agricultural machinery.
Description
Technical field
Agricultural locomotive field is the utility model is related to, more particularly to a kind of particularly convenient agricultural machinery uses manual transmission.
Background technology
Agricultural machinery be used in agricultural production it is variousMachineGeneral designation, wherein with walking function be referred to as agriculture locomotive,
Agriculture locomotive is often also referred to as agricultural machinery, and agricultural machinery refers to agriculture locomotive in the application.In existing agricultural machinery, including tractor, plough
Ground machine and united reaper etc., due to needing to be operated inside the soil of farmland, in order to avoid soil is compacted, generally use
Caterpillar walking mechanism.Its manual transmission used is similar with the shift speed change box structure of existing common vehicle, bag
Casing is included, power input shaft and the speed change wheel shaft with power input shaft drive connection, are relied on speed change wheel shaft on casing
Spline is axially slidably equipped with change-speed gearing, and change-speed gearing is corresponded on casing and is provided with shift fork, shift fork and gearshift refer to
Make input mechanism（Shifting commands input mechanism is generally shift handle）It is connected and change-speed gearing can be stirred on speed change wheel shaft
Axially displaced to different gear, it is effectively output gear at least with more than two gears（Neutral can also be included）,
It can be nibbled during axially displaced to the different effective output gear of speed change wheel shaft with the gear input gear of each effectively output gear
Close, each gear input gear is connected to vehicle to run driving wheel by the power train of different drive ratios.Wherein effectively output
Gear generally comprises more than two forward ranges and a retrogressing gear, forward range drive vehicle to run driving wheel to rotate forward
Advance, the reversion of retreating gear bit strip motor-car walking driver gear retreats.
When above-mentioned shift speed change box structure is used for common vehicle, due to common vehicle be generally advance use state compared with
More, retrogressing use state is less, therefore is more adapted to.But when agriculture locomotive operates in farmland, its back operation is also frequently necessary to use
Arrive, agricultural machinery even vehicle lengthwise direction both ends in part are provided with agriculture operation device, do not differentiate between fore-and-aft direction.It is therefore above-mentioned common
Vehicle manual transmission, retreat only have a gear, be not suitable for agricultural machinery use.In the prior art, a kind of hydrostatic be present
Press buncher（HST）Can be good at realizing variable speed, it is possible to achieve what is moved forward and backward is switched fast, but HST into
This is higher, and using causing cost to be greatly improved on agricultural machinery, while hydraulic speed-changing requires of a relatively high to use environment, also uncomfortable
For farming operations environment.
In order to solve the above problems, it is specially adapted for the manual transmission of agricultural machinery in the presence of one kind in the prior art, wherein
On the basis of said structure, gear will be retreated and be also configured as more gears from big to small, facilitate agricultural machinery to enter with the speed of different gears
Row retreats control, with suitable for farming operations.But such shift speed change box structure, when the gear that moves forward and backward switches, exist
The defects of control is inconvenient, and sensitivity is poor, and trailer reversing flexibility is relatively low.
Utility model content
The technical problems to be solved in the utility model is：How a kind of locomotive is provided and is moved forward and backward and switches sensitivity
Good, rapid reaction is easy to control, and trailer reversing flexibility is good and the lower-cost manual transmission especially suitable for agricultural machinery,
It is set to be particularly suitable for using in agricultural machinery.
In order to solve the above-mentioned technical problem, the utility model employs following technical scheme.
A kind of manual transmission especially suitable for agricultural machinery, including casing, power input shaft on casing and with
Power input shaft is parallel and the speed change wheel shaft of drive connection, coordinates by key on speed change wheel shaft and is axially slidably provided with speed change
Gear, change-speed gearing is corresponded on casing and is provided with shift fork, shift fork is connected with shifting commands input mechanism and can stir gear teeth
Wheel gear axially displaced to different on speed change wheel shaft, it is effectively output gear at least with more than two gears, becomes
During axially displaced to the different effective output gear of fast gear can with the gear input gear engagement of each effectively output gear,
Each gear input gear is used to be connected to vehicle to run driving wheel by the gear transmission mechanism of different drive ratios；Its feature
It is, is provided between the power input shaft and speed change wheel shaft and rotates forward transmission mechanism and reversing driving, rotates forward driver
The output end of structure is connected with speed change wheel shaft and is used to drive speed change wheel shaft to rotate forward, the output end and speed change wheel shaft of reversing driving
It is connected and is used to drive speed change wheel shaft reverse turn；Rotating switching control dress is additionally provided with the casing of power input shaft position
Put, the rotating switching control, which can control, rotates forward transmission mechanism and the respective input of reversing driving and power
Input shaft switching is connected.
So, this gearbox work when, forward gear output gear number reverse gear output gear number it is identical, conveniently better control over and reverse gear
Operation, while and can directly control vehicle in forward gear by rotating switching control and directly switch between reversing gear,
Agility and the flexibility of vehicle rollback control are drastically increased, makes it particularly appropriate for use in agricultural machinery and uses.
As optimization, left half output shaft is rotatably mounted with casing and right half output shaft is used for vehicle to run actively
Wheel is connected, and left half output shaft and right half output shaft or so face and is coaxially set and parallel with power input shaft, respectively keeps off
Position transmission mechanism output end is rotatably provided in steering clutch support shaft phase on casing and parallel with power input shaft with one
Even, it is driven each via a pair of output active steering gears of engagement and output on the left and right halfbody for turning to clutch support shaft
Tooth sector is connected with left half output shaft and right half output shaft respectively.
When so installing and using, left half output shaft directly can be connected with right half output shaft with the installation of left and right vehicle wheel wheel,
Product good integrity, and conveniently realize the differential steering control of left and right vehicle wheel wheel.
As optimization, gear transmission mechanism includes a gear gear transmission mechanism, two gear gear transmission mechanisms, three gear gears and passed
Motivation structure and four gear gear transmission mechanisms, the gear gear transmission mechanism include one one gear driven gear（For the gear of a gear
Position input gear）, a gear driven gear is on the gear power transmission shaft that one and power input shaft be arranged in parallel, gear transmission
Three-level driving gear is fixedly installed on axle and the three-level driven gear being fixedly installed in clutch support shaft that turns to engages biography
It is dynamic；Two gear gear transmission mechanisms include one two gear driven gear（For the gear input gear of two gears）, two gear driven gear peaces
On the gear power transmission shaft；Three gear gear transmission mechanisms include a three gear masters being rotatably sleeved on speed change wheel shaft
Moving gear（For the gear input gear of three gears）, three, which keep off driving gears, is provided with ring gear and external tooth（It is not expressly described in scheme
The gear for having ring gear is accordingly to be regarded as external gear）, the external tooth of three gear driving gears and one three gear driven gear engagement, three gears are driven
Gear is arranged on the gear power transmission shaft；Four gear gear transmission mechanisms are rotatably sleeved on speed change wheel shaft including one
Four gear driving gears（For the gear input gear of four gears）, four, which keep off driving gears, is provided with ring gear and external tooth, four gear driving tooths
The external tooth of wheel and one four gear driven gear engagement, four gear driven gears are arranged on the gear power transmission shaft；The gear teeth
Take turns and be used for and a gear for the four-speed gear duplicate gear with two different external tooths, the external tooth of four-speed gear duplicate gear minor diameter
The ring gear engaged transmission of driven gear and three gear driving gears, the external tooth of four-speed gear duplicate gear major diameter are used for and two
Keep off the ring gear engaged transmission of driven gear and four gear driving gears.
So, four gear transmission mechanisms are devised, meet the gear demand of agricultural machinery manipulation, and each gear driver enough
Structure, which shares a gear power transmission shaft and turns to clutch support shaft, realizes installation and transmission, has simple and compact for structure, reliable transmission
The advantages of stable.
As optimization, the rotating forward transmission mechanism includes a rotating forward master for being rotatably sleeved on power input shaft one end
Moving gear and a rotating forward driven gear being arranged on speed change wheel shaft, rotate forward driving gear and rotating forward driven gear engagement passes
It is dynamic；The reversing driving includes a reversion driving gear for being rotatably sleeved on the power input shaft other end, also wraps
Include and be arranged on and become installed in reverse gear duplicate gear and one of reverse gear support shaft in one parallel with power input shaft
The driven gear that reverses gear on fast wheel shaft, the duplicate gear that reverses gear have two external tooths arranged side by side be used for and invert driving gear with
And driven gear engagement of reversing gear.
So, reversion transmission is realized by the duplicate gear that reverses gear of setting, it is simple and reliable for structure and facilitate switching control；Together
When the duplicate gear that sets conveniently adjust gearratio to slow down the output speed of reversion transmission, controlled beneficial to vehicle backing.
As optimization, the rotating switching control, including the one section of clutch-plate peace being formed on power input shaft
Section is filled, coaxial sleeve is provided with the clutch-plate of some uniform intervals vertically arrangement on clutch-plate construction section, coaxial on the outside of clutch-plate
Be socketed with the cylindrical movable clutch-plate mounting cup in an inner chamber, clutch-plate include staggeredly spaced fixed clutch-plate and
Movable clutch-plate, the fixed inner installation of clutch-plate are connected on the clutch-plate construction section of power input shaft, movable clutch-plate outer end
Installation is connected to movable clutch-plate installation cover inner surface；Movable clutch-plate mounting cup left and right ends end face each stretches out to be formed
There is a connecting cylinder, connecting cylinder outer end end face is concavo-convex connected structure；The input for rotating forward transmission mechanism is rotationally
The rotating forward driving gear of power input shaft one end is set in, the input of reversing driving is defeated to be rotatably sleeved on power
Enter axle other end reversion driving gear, rotate forward one end end face each faced on driving gear and reversion driving gear and be provided with
Concave-convex fit structure；The fixed clutch-plate and movable clutch-plate are in when being spaced apart state, connecting cylinder outer end end face
Concavo-convex grafting fit structure and rotate forward driving gear and invert the concave-convex fit structure of driving gear end face and be in separating
In when being adjacent to bonding state, the bumps of connecting cylinder outer end end face are inserted for state, the fixed clutch-plate and movable clutch-plate
The concave-convex fit structure for connecing fit structure and rotating forward driving gear or reversion driving gear end face is in castellated mated condition；
Rotating switching control also includes the switching control unit being arranged on casing, and the switching control unit is used to control work
Left and right translates and realizes bonding position state in left and right between fixed clutch-plate and movable clutch-plate dynamic clutch-plate mounting cup vertically
Switching.
So, employ clutch-plate and form the structure of similar clutch and realize rotating switching control, simple in construction, control
Reliably, and clutch-plate has a trip segment of a half-clutch state during clutch, fixes clutch-plate and activity during the trip section
And can enough keeps mutually rotating when certain frictional force can be transmitted between clutch-plate, but being met obstructions, during this half-clutch state
It can be inserted into just for the concavo-convex connected structure of connecting cylinder outer end in the concave-convex fit structure of corresponding gear, it is real with smooth transition
Existing castellated cooperation docking, has greatly saved production cost and has improved the reliability and stability of rotating switching control.
As optimization, the clutch-plate construction section on the power input shaft is more than the major diameter of other positions for one section of diameter
Section.
So, clutch-plate is set on enlarged diameter section, can preferably facilitate the installation settings of clutch-plate, avoid and other
The interference of component, ensure the reliability of clutch switching control.
As optimization, rotating switching control also includes clutch disengaging spring, the clutch disengaging spring edge
Power input shaft acts axially between the output end of movable clutch-plate mounting cup and switching control unit and transmits control and fixes
The active force that bonding position state in left and right switches between clutch-plate and movable clutch-plate.
So, switching control unit after clutch disengaging spring by remaking for movable clutch-plate mounting cup and driving work
Clutch switching control is realized in dynamic clutch-plate side-to-side movement.Spring can provide a shock-absorbing cushioning effect, improve protecting effect.
As optimization, the clutch disengaging spring be symmetrical set two in the helical spring of compressive state and
It is set in and reverses gear outside support shaft, is arranged with can also being slid axially in the support shaft of reversing gear between two clutch disengaging springs
A spring push-plate is provided with, movable clutch-plate mounting cup side, which has to the support direction of principal axis that reverses gear, extends the spring to be formed installation
Portion, support shaft of reversing gear are set through spring mountings, at left and right sides of spring push-plate each between spring mountings formed with one
Individual spring installation cavity simultaneously is used to install clutch disengaging spring；Spring push-plate is controlled away from the side in power input shaft direction and switching
Mechanism processed is connected.
So, the convenient installation and guiding to spring of structure for support shaft of reversing gear is make use of, makes its uniform stressed, to ensure
The stability and reliability of its work.Spring push-plate can also be avoided conveniently reversing gear the interference of support shaft simultaneously, will control force
End is outwards delivered on the outside of casing, sets switching control unit to realize switching control to facilitate.Symmetrically set in addition, spring employs
Two stage clips put, make it to produce following effect in addition to it can provide shock-absorbing buffer protection function：Can when the 1st, assembling
To automatically adjust each parts member fabrication error of compensation by two springs in left and right so that clutch friction plate is not by during external force
In poised state and being capable of uniform stressed.2nd, when clutch-plate or so bonding position state switches, spring energy storage can be relied on, can be with
It is better achieved to the compression between friction plate.3rd, during clutch-plate or so bonding position state handover operation, spring can be relied on
The pretightning force of offer, to providing stroke compensation after clutch friction pad wear, to ensure the compression effect after friction disc wear.4、
After the external force revocation of switching control unit, it can be automatically reset by two spring drive activity clutch-plate mounting cups to centre
State, improve manipulation flexibility；Fixed simultaneously under this state between clutch-plate and movable clutch-plate and do not contact power transmission, stabilize to sky
Gear state, therefore the convenient conversion manipulation realized to vehicle neutral position state.
As optimization, movable sleeve is gone back on the power input shaft at the both ends of clutch-plate vertically it is connected to a main clutch and push away
Disk, main clutch push-plate are arranged on inside movable clutch-plate mounting cup, and main clutch push-plate outer end has vertically toward clutch-plate direction
The clutch-plate that extension is formed compresses force section；Also each it is socketed positioned at clutch-plate both ends on the power input shaft and is provided with one
Push-plate abuts cylinder, and the connecting cylinder at movable clutch-plate mounting cup both ends is actively socketed on push-plate and abutted outside cylinder, and push-plate abuts cylinder and is used for
Offset in the second half stroke of clutch switching control and on the outside of main clutch push-plate the inner, and make winner's clutch push-plate outer end from
Close piece and compress force section to clutch-plate force compression.
So, in the first half term of clutch switching control, main clutch push-plate and movable clutch-plate mounting cup are servo-actuated；To clutch
The second half stroke time point of switching control（The concavo-convex connected structure of connecting cylinder outer end end face has begun to insert during the time point
Enter in the concavo-convex grafting fit structure of corresponding gear）When push-plate can be relied on to abut the main clutch that prop up on front side of moving direction of cylinder push away
Disk so that the main clutch push-plate is no longer servo-actuated with movable clutch-plate mounting cup, and clutch-plate is compressed；So can be preferably real
Now to the compression of clutch-plate, while it can better ensure that being located at concavo-convex connected structure to the compression of clutch-plate has begun to mutually
After insertion, the stationarity and reliability of positive anti-switching ensure that.
As optimization, the switching control unit, including a clutch sector control arm of box outer surface is arranged on, from
Hinge shape control arm is installed in rotation on casing by horizontally disposed rotating shaft, clutch sector control arm lower end and lateral out
One gear control arm of extension is connected, clutch sector control arm upper surface is integrally curved and upper surface on have and arcuately set
The engaging tooth put；Switching control unit also includes the clutch for clutch control being installed in rotation on a casing rotation gear, clutch
Vertically installation and the engagement of the engaging tooth of downside and clutch sector control arm of control rotation gear, clutch for clutch control rotation gear is vertically
It is inner to box house extension and in inner end face eccentric evagination is provided with clutch for clutch control output section, switching control unit is also
Including the spring push-plate, the side of spring push-plate and movable clutch-plate mounting cup opposite direction is provided with a vertical cunning
Groove, the clutch for clutch control output section of clutch for clutch control rotation gear the inner eccentric setting coordinate in chute in which can slide vertically.
So, the switching control unit of setting can rely on the drawing to gear control arm to push away control, realize fan-shaped to clutch
The rotation control of control arm, and then the rotation of clutch for clutch control rotation gear is controlled, it is inner by control clutch for clutch control rotation gear
Slip of the clutch for clutch control output section of eccentric setting in chute, the translation control vertically for spring push-plate is transformed the rotation into,
And then control clutch to realize clutch, complete rotating and neutral switching control.Compact with simple and ingenious structure, control can
The advantages that by being quick on the draw.
Further, roller is provided with left and right sides of chute and clutch for clutch control output section coordinates.Frictional force is reduced, it is convenient
Clutch for clutch control output section sliding up and down in chute.
The utility model specifically can lean on positive/negative rotation switching device in the case where rotating speed is higher to realize in same axis
It is upper steadily smoothly to be engaged with rotating forward driving gear and inverting the dental inlay clutch structure of driving gear, have simple and ingenious structure tight
Gather, control reliable the advantages that being quick on the draw；When simultaneously with axially displaced to the different effective output gear of a change-speed gearing
The gear switch of two and the above can be realized with the gear input gear engagement of each effectively output gear.Simple and ingenious structure
Compact, forward and reverse gear is more, meets the rotating speed requirement that different condition uses.
In summary, the utility model have locomotive move forward and backward switching sensitivity it is good, rapid reaction is easy to control,
Trailer reversing flexibility is good and lower-cost advantage, is particularly suitable for using in agricultural machinery.
Brief description of the drawings
Fig. 1 is from the structure schematic diagram of side-looking direction in the utility model embodiment.
Fig. 2 is the A-A sectional views in Fig. 1.
Fig. 3 is the schematic diagram that Fig. 1 shows B-B hatchings.
Fig. 4 is the B-B sectional views in Fig. 3.
Fig. 5 is that individually top half is used for the right view for showing rotating switching control in Fig. 1.
Fig. 6 is the top view after horizontal direction hatchings of the Fig. 5 along power input shaft is splitted.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment：
As shown in figures 1 to 6, a kind of manual transmission especially suitable for agricultural machinery, including casing 1, it is dynamic on casing
Power input shaft 55 and parallel with power input shaft 55 and drive connection speed change wheel shaft 2, coordinating by key on speed change wheel shaft 2 can axle
To change-speed gearing 21 is slidably provided with, change-speed gearing 21 is corresponded on casing 1 and is provided with shift fork 23, shift fork 23 and shifting commands are defeated
Enter mechanism to be connected and the gear axially displaced to different on speed change wheel shaft 2 of change-speed gearing 21 can be stirred, at least with two
Gear more than individual is effectively output gear, during axially displaced to the different effective output gear of change-speed gearing 21 can with it is each
Effectively the gear input gear engagement of output gear, each gear input gear are used for the gear transmission mechanism by different drive ratios
It is connected to vehicle to run driving wheel；Wherein, it is provided with rotating forward driver between the power input shaft 55 and speed change wheel shaft 2
Structure and reversing driving, the output end for rotating forward transmission mechanism are connected with speed change wheel shaft 2 and for driving speed change wheel shaft to rotate forward, instead
Turn the output end of transmission mechanism and speed change wheel shaft phase 2 connects and for driving speed change wheel shaft 2 to invert；The position of power input shaft 55
Casing on be additionally provided with rotating switching control, the rotating switching control can control rotating forward transmission mechanism
It is connected with the respective input of reversing driving with power input shaft switching.In present embodiment, transmission mechanism is rotated forward as just
Turn transfer gear train, reversing driving is reversion transfer gear train.But replace with other mechanisms that can be realized and rotate forward transmission
And the mechanism of reversion transmission can be realized, still fall within the protection domain for falling into the application.
So, this gearbox work when, forward gear output gear number reverse gear output gear number it is identical, conveniently better control over and reverse gear
Operation, while and can directly control vehicle in forward gear by rotating switching control and directly switch between reversing gear,
Agility and the flexibility of vehicle rollback control are drastically increased, makes it particularly appropriate for use in agricultural machinery and uses.
The output shaft 3 of a left side half is rotatably mounted with present embodiment, on casing and right half output shaft 32 is used for and vehicle
Walking driver gear is connected, and left half output shaft 3 and the right face of half output shaft 32 or so and is coaxially set and is inputted with power
Axle 55 is parallel, and each gear transmission mechanism output end is rotatably provided in turn on casing and parallel with power input shaft 55 with one
It is connected to clutch support shaft 60, each via a pair of output actives of engagement on the left and right halfbody for turning to clutch support shaft 60
Tooth sector 58 and the driven tooth sector 5 of output are connected with left half output shaft 3 and right half output shaft 32 respectively.
When so installing and using, left half output shaft directly can be connected with right half output shaft with the installation of left and right vehicle wheel wheel,
Product good integrity, and conveniently realize the differential steering control of left and right vehicle wheel wheel.When it is implemented, can also be straight by output shaft
Connect and be arranged to a bearing, should be regarded as still falling within the application protection domain.
Wherein, gear transmission mechanism includes a gear gear transmission mechanism, two gear gear transmission mechanisms, three gear gear drivers
Structure and four gear gear transmission mechanisms, the gear gear transmission mechanism include one one gear driven gear 9（Gear for a gear is defeated
Enter gear）, a gear driven gear 9 is on the gear power transmission shaft 4 that one and power input shaft be arranged in parallel, gear power transmission shaft
Three-level driving gear 14 is fixedly installed on 4 and the three-level driven gear 59 being fixedly installed in clutch support shaft 60 that turns to is nibbled
Close transmission；Two gear gear transmission mechanisms include one two gear driven gear 22（For the gear input gear of two gears）, two gear it is driven
Gear 22 is arranged on the gear power transmission shaft 4；Three gear gear transmission mechanisms are rotatably sleeved on speed change wheel shaft 2 including one
On three gear driving gears 13（For the gear input gear of three gears）, three, which keep off driving gears 13, is provided with ring gear and external tooth（Side
The not expressly described gear for having ring gear is accordingly to be regarded as external gear in case）, three gear driving gears 13 external tooth and one three gear it is driven
Gear 12 is engaged, and three gear driven gears are arranged on the gear power transmission shaft 4；Four gear gear transmission mechanisms include one rotatably
Ground is set in four gear driving gears 10 on speed change wheel shaft 2（For the gear input gear of four gears）, four, which keep off driving gears 10, is set
There are ring gear and external tooth, the external tooth of four gear driving gears 10 and one four gear driven gear 11 are engaged, and four gear driven gears 11 are pacified
On the gear power transmission shaft 4；The change-speed gearing 21 is the four-speed gear duplicate gear with two different external tooths, four-speed
The external tooth of gear duplicate gear minor diameter is used for and the ring gear engagement of a gear gear driving gear 13 of driven gear 9 and three passes
Dynamic, the external tooth of four-speed gear duplicate gear major diameter is used for and the ring gear of the two gear gear driving gears 10 of driven gears 22 and four
Engaged transmission.
So, four gear transmission mechanisms are devised, meet the gear demand of agricultural machinery manipulation, and each gear driver enough
Structure, which shares a gear power transmission shaft and turns to clutch support shaft, realizes installation and transmission, has simple and compact for structure, reliable transmission
The advantages of stable.When it is implemented, each gear transmission mechanism can also be arranged in different rotating shafts as needed, or even will
Gear transmission mechanism is independently disposed to the Structural Transformation form such as recombinant installation outside casing, should still be contemplated as falling within the application guarantor
In the range of shield.
Wherein, the transmission mechanism that rotates forward includes a rotating forward for being rotatably sleeved on the one end of power input shaft 55 actively
Gear 36 and a rotating forward driven gear 15 being arranged on speed change wheel shaft 2, rotate forward driving gear 36 and rotate forward driven gear 15
Engaged transmission；The reversing driving includes a reversion driving gear for being rotatably sleeved on the power input shaft other end
52, in addition to reverse gear installed in one one reversed gear in support shaft 20 parallel with power input shaft 55 duplicate gear 17 and
There are two external tooths arranged side by side to use for one driven gear 16 that reverses gear being arranged on speed change wheel shaft 2, the duplicate gear 17 that reverses gear
Engaged in reversion driving gear 52 and the driven gear 16 that reverses gear.The duplicate gear 17 that reversed gear during implementation is pacified by needle bearing 19
In support shaft 20 of reversing gear.
So, reversion transmission is realized by the duplicate gear that reverses gear of setting, it is simple and reliable for structure and facilitate switching control；Together
When the duplicate gear that sets conveniently adjust gearratio to slow down the output speed of reversion transmission, controlled beneficial to vehicle backing.Certainly
When it is implemented, rotating forward transmission mechanism and reversing driving as needed each can also set up idler gear and be passed with adjusting
Dynamic ratio, should be regarded as still falling within the application protection domain.
Wherein, the rotating switching control, including the one section of clutch-plate installation being formed on power input shaft 55
Section, coaxial sleeve is provided with the clutch-plate of some uniform intervals vertically arrangement on clutch-plate construction section, coaxial set on the outside of clutch-plate
The cylindrical movable clutch-plate mounting cup 8 in an inner chamber is connected to, clutch-plate includes the staggeredly spaced He of fixed clutch-plate 6
Movable clutch-plate 7, the fixed inner installation of clutch-plate 6 are connected on the clutch-plate construction section of power input shaft 55, movable clutch-plate 7
Outer end installation connection（The installation of fixed clutch-plate and movable clutch-plate connect refer to install after both clutch-plate and installation component it
Between can have a mounting structural mode for being adjacent to and transmitting axial force, can be dismountable fixation side during actual installation
Formula, such as in movable clutch-plate mounting cup inner surface setting arc groove, movable clutch-plate is embedded in arc groove）In work
Dynamic clutch-plate installation cover inner surface；Movable clutch-plate mounting cup left and right ends end face each stretches out formed with a connecting cylinder
35, the outer end end face of connecting cylinder 35 is concavo-convex connected structure；The input for rotating forward transmission mechanism is dynamic to be rotatably sleeved on
The rotating forward driving gear 36 of the one end of power input shaft 55, the input of reversing driving are to be rotatably sleeved on power input shaft
55 other ends invert driving gear 52, rotate forward one end end face each faced on driving gear 36 and reversion driving gear 52 and set
It is equipped with concave-convex fit structure；The fixed clutch-plate and movable clutch-plate are in when being spaced apart state, the connecting cylinder outer end
The concavo-convex grafting fit structure and rotating forward driving gear 36 of end face and the concave-convex fit structure of reversion driving gear 52 end face are equal
In released state, the fixed clutch-plate and movable clutch-plate are in when being adjacent to bonding state, connecting cylinder outer end end face
Concavo-convex grafting fit structure and rotate forward driving gear 36 or invert the concave-convex fit structure of driving gear 52 end face and be in tooth
Embedded mated condition；Rotating switching control also includes the switching control unit being arranged on casing, the switching control
Mechanism is used to control the left and right translation vertically of movable clutch-plate mounting cup and realized left between fixed clutch-plate and movable clutch-plate
The switching of right bonding position state.
So, employ clutch-plate and form the structure of similar clutch and realize rotating switching control, simple in construction, control
Reliably, and clutch-plate has a trip segment of a half-clutch state during clutch, fixes clutch-plate and activity during the trip section
And can enough keeps mutually rotating when certain frictional force can be transmitted between clutch-plate, but being met obstructions, during this half-clutch state
It can be inserted into just for the concavo-convex connected structure of connecting cylinder outer end in the concave-convex fit structure of corresponding gear, it is real with smooth transition
The existing castellated reliability and stability for coordinating docking, drastically increasing rotating switching control.Certainly, when it is implemented,
It can also can realize that the prior art of different gear train input switching controls is controlled to realize that rotating switches using others
System, such as just be regarded as still falling within the application protection domain using cooperation of selector fork and power shift gear etc..In addition
During implementation, movable clutch-plate mounting cup can be that a component or several Component compositions obtain, and connecting cylinder can also be independent
The component of setting is integrated with the setting of movable clutch-plate mounting cup, is enforceable structure.
Wherein, the clutch-plate construction section on the power input shaft 55 is the major diameter that one section of diameter is more than other positions
Section.
So, clutch-plate is set on enlarged diameter section, can preferably facilitate the installation settings of clutch-plate, avoid and other
The interference of component, ensure the reliability of clutch switching control.
Wherein, rotating switching control also includes clutch disengaging spring 18, the edge of clutch disengaging spring 18
Power input shaft acts axially between movable clutch-plate mounting cup 8 and the output end of switching control unit and transmits control and fixes
The active force that bonding position state in left and right switches between clutch-plate 6 and movable clutch-plate 7.
So, switching control unit after clutch disengaging spring by remaking for movable clutch-plate mounting cup and driving work
Clutch switching control is realized in dynamic clutch-plate side-to-side movement.Spring can provide a shock-absorbing cushioning effect, improve protecting effect.
Wherein, the clutch disengaging spring 18 be symmetrical set two in the helical spring of compressive state and
It is set in and reverses gear outside support shaft 20, can also slides axially ground in the support shaft 20 of reversing gear between two clutch disengaging springs 18
Sheathed setting has a spring push-plate 27, and the movable side of clutch-plate mounting cup 8, which has to the support direction of principal axis that reverses gear, extends what is formed
Spring mountings, support shaft of reversing gear 20 are set through spring mountings, respective and spring mountings at left and right sides of spring push-plate 27
Between formed with a spring installation cavity and for installing clutch disengaging spring 18；Spring push-plate 27 deviates from power input shaft side
To side be connected with switching control unit.
So, the convenient installation and guiding to spring of structure for support shaft of reversing gear is make use of, makes its uniform stressed, to ensure
The stability and reliability of its work.Spring push-plate can also be avoided conveniently reversing gear the interference of support shaft simultaneously, will control force
End is outwards delivered on the outside of casing, sets switching control unit to realize switching control to facilitate.Symmetrically set in addition, spring employs
Two stage clips put, make it to produce following effect in addition to it can provide shock-absorbing buffer protection function：Can when the 1st, assembling
To automatically adjust each parts member fabrication error of compensation by two springs in left and right so that clutch friction plate is not by during external force
In poised state and being capable of uniform stressed.2nd, when clutch-plate or so bonding position state switches, spring energy storage can be relied on, can be with
It is better achieved to the compression between friction plate.3rd, during clutch-plate or so bonding position state handover operation, spring can be relied on
The pretightning force of offer, to providing stroke compensation after clutch friction pad wear, to ensure the compression effect after friction disc wear.4、
After the external force revocation of switching control unit, it can be automatically reset by two spring drive activity clutch-plate mounting cups to centre
State, improve manipulation flexibility；Fixed simultaneously under this state between clutch-plate and movable clutch-plate and do not contact power transmission, stabilize to sky
Gear state, therefore the convenient conversion manipulation realized to vehicle neutral position state.
Wherein, movable sleeve is gone back on the power input shaft at the both ends in clutch-plate vertically and is connected to a main clutch push-plate 49,
Main clutch push-plate 49 is arranged on inside movable clutch-plate mounting cup 8, and the main outer end of clutch push-plate 49 has vertically toward clutch-plate side
The clutch-plate formed to extension compresses force section；Also each it is socketed positioned at clutch-plate both ends on the power input shaft and is provided with one
Individual push-plate abuts cylinder 31, and the connecting cylinder 35 at the movable both ends of clutch-plate mounting cup 8 is actively socketed on push-plate and abutted outside cylinder 31, and push-plate supports
Connect cylinder 31 is used in the second half stroke of clutch switching control and offseted on the outside of main clutch push-plate the inner, and pushes away winner's clutch
The clutch-plate of disk outer end compresses force section and clutch-plate force is compressed.
So, in the first half term of clutch switching control, main clutch push-plate and movable clutch-plate mounting cup are servo-actuated；To clutch
The second half stroke time point of switching control（The concavo-convex connected structure of connecting cylinder outer end end face has begun to insert during the time point
Enter in the concavo-convex grafting fit structure of corresponding gear）When push-plate can be relied on to abut the main clutch that prop up on front side of moving direction of cylinder push away
Disk so that the main clutch push-plate is no longer servo-actuated with movable clutch-plate mounting cup, and clutch-plate is compressed；So can be preferably real
Now to the compression of clutch-plate, while it can better ensure that being located at concavo-convex connected structure to the compression of clutch-plate has begun to mutually
After insertion, the stationarity and reliability of positive anti-switching ensure that.
When it is implemented, push-plate abut cylinder 31 can be and it is corresponding rotating forward driving gear 36 and reversion driving gear 52
It is integrally formed to obtain, with convenient for assembly, certain split-type structural, which is fallen within, falls into the application protection domain.
Wherein, the switching control unit, including it is arranged on a clutch sector control arm 26 of box outer surface, clutch
Fan-shaped control arm 26 is installed in rotation on casing by horizontally disposed rotating shaft, the lower end of clutch sector control arm 26 and transverse direction
One gear control arm 28 of outer extension is connected, the upper surface of clutch sector control arm 26 is integrally curved and upper surface on there is edge
The engaging tooth that arc is set；Switching control unit also includes the clutch for clutch control being installed in rotation on a casing rotation gear
24, vertically installation and the engagement of the engaging tooth of downside and clutch sector control arm of clutch for clutch control rotation gear 24, clutch for clutch control rotation
The inner of gear 24 vertically is to box house extension and in inner end face eccentric evagination is provided with clutch for clutch control output section, cuts
Changing controlling organization also includes the spring push-plate 27, and the side of spring push-plate 27 and the movable opposite direction of clutch-plate mounting cup 8 is set
A vertical chute is equipped with, the clutch for clutch control output section of the clutch for clutch control rotation 24 inner eccentric setting of gear can vertically be slided
Coordinate dynamicly in chute.
So, the switching control unit of setting can rely on the drawing to gear control arm to push away control, realize fan-shaped to clutch
The rotation control of control arm, and then the rotation of clutch for clutch control rotation gear is controlled, it is inner by control clutch for clutch control rotation gear
Slip of the clutch for clutch control output section of eccentric setting in chute, the translation control vertically for spring push-plate is transformed the rotation into,
And then control clutch to realize clutch, complete rotating and neutral switching control.Compact with simple and ingenious structure, control can
The advantages that by being quick on the draw.When it is implemented, the input of switching power can also be realized using other switching control units
And moment of torsion input is converted into translation input, turn of moment of torsion and translation is realized for example with gear and the structure of rack cooperation
Change, should be regarded as still falling within the application protection domain.
Wherein, roller 25 is provided with left and right sides of chute and clutch for clutch control output section coordinates.Reduce frictional force, it is convenient from
Close control output section sliding up and down in chute.Certainly when it is implemented, equivalent replacement can also be done, such as roller is replaced
Ball is changed to, or the embodiment such as roller setting to the left and right sides of clutch for clutch control output section and the cooperation of chute madial wall is equal
Can.
Claims (10)
1. a kind of manual transmission especially suitable for agricultural machinery, including casing, power input shaft on casing and with it is dynamic
Power input shaft is parallel and the speed change wheel shaft of drive connection, coordinates by key on speed change wheel shaft and is axially slidably provided with gear teeth
Wheel, change-speed gearing is corresponded on casing and is provided with shift fork, shift fork is connected with shifting commands input mechanism and can stir change-speed gearing
Axially displaced to the different gear on speed change wheel shaft, at least export gear, speed change with more than two gears to be effective
During axially displaced to the different effective output gear of gear can with the gear input gear engagement of each effectively output gear, respectively
Gear input gear is used to be connected to vehicle to run driving wheel by the gear transmission mechanism of different drive ratios；Its feature exists
In, it is provided between the power input shaft and speed change wheel shaft and rotates forward transmission mechanism and reversing driving, rotating forward transmission mechanism
Output end be connected with speed change wheel shaft and be used to driving speed change wheel shaft to rotate forward, the output end and speed change wheel shaft phase of reversing driving
Connect and be used to drive speed change wheel shaft reverse turn；Rotating switching control dress is additionally provided with the casing of power input shaft position
Put, the rotating switching control, which can control, rotates forward transmission mechanism and the respective input of reversing driving and power
Input shaft switching is connected.
2. the manual transmission especially suitable for agricultural machinery as claimed in claim 1, it is characterised in that rotationally pacify on casing
It is used to be connected with vehicle to run driving wheel with right half output shaft equipped with left half output shaft, left half output shaft and right half output shaft
Left and right face and it is coaxially set and parallel with power input shaft, each gear transmission mechanism output end and one are rotatably provided in
On casing and the steering clutch support shaft parallel with power input shaft is connected, each on the left and right halfbody for turning to clutch support shaft
From by a pair of of engagement output active steering gears and export driven tooth sector respectively with left half output shaft and right partly output
Axle is connected.
3. the manual transmission especially suitable for agricultural machinery as claimed in claim 2, it is characterised in that gear transmission mechanism includes
One gear gear transmission mechanism, two gear gear transmission mechanisms, three gear gear transmission mechanisms and four gear gear transmission mechanisms, a gear
Gear transmission mechanism includes one one gear driven gear, what a gear driven gear be arranged in parallel installed in one and power input shaft
On gear power transmission shaft, it is fixedly installed in three-level driving gear and the steering clutch support shaft and is fixedly installed on gear power transmission shaft
Three-level driven gear engaged transmission；Two gear gear transmission mechanisms include one two gear driven gear, two gear driven gear installations
On the gear power transmission shaft；Three gear gear transmission mechanisms include three gears being rotatably sleeved on speed change wheel shaft actively
Gear, three gear driving gears are provided with ring gear and external tooth, the external tooth of three gear driving gears and one three gear driven gear engagement,
Three gear driven gears are arranged on the gear power transmission shaft；Four gear gear transmission mechanisms are rotatably sleeved on speed change including one
Four gear driving gears on wheel shaft, four gear driving gears are provided with ring gear and external tooth, and four keep off the external tooth of driving gears and one
Four gear driven gear engagements, four gear driven gears are arranged on the gear power transmission shaft；The change-speed gearing be with two not
With the four-speed gear duplicate gear of external tooth, the external tooth of four-speed gear duplicate gear minor diameter is used for and a gear driven gear and three
Keep off the ring gear engaged transmission of driving gear, the external tooth of four-speed gear duplicate gear major diameter be used for and two gear driven gears and
The ring gear engaged transmission of four gear driving gears.
4. the manual transmission especially suitable for agricultural machinery as claimed in claim 1, it is characterised in that the rotating forward transmission mechanism
It is arranged on including a rotating forward driving gear for being rotatably sleeved on power input shaft one end and one on speed change wheel shaft just
Turn driven gear, rotate forward driving gear and rotate forward driven gear engaged transmission；The reversing driving includes one rotatably
Ground is set in the reversion driving gear of the power input shaft other end, in addition to parallel with power input shaft is reversed gear installed in one
One in support shaft reverse gear duplicate gear and a driven gear that reverses gear being arranged on speed change wheel shaft, duplex of reversing gear
Gear is used for and inverted driving gear with two external tooths arranged side by side and the driven gear that reverses gear engages.
5. the manual transmission especially suitable for agricultural machinery as claimed in claim 4, it is characterised in that the rotating switching control
Device processed, including one section of clutch-plate construction section being formed on power input shaft, coaxial sleeve is provided with some on clutch-plate construction section
The clutch-plate of uniform intervals arrangement vertically, it is coaxial on the outside of clutch-plate to be socketed with the cylindrical movable clutch-plate in an inner chamber
Mounting cup, clutch-plate include staggeredly spaced fixed clutch-plate and movable clutch-plate, the fixed inner installation connection of clutch-plate
On the clutch-plate construction section of power input shaft, movable clutch-plate outer end installation is connected to movable clutch-plate installation cover inner surface；
Movable clutch-plate mounting cup left and right ends end face each stretches out formed with a connecting cylinder, and connecting cylinder outer end end face is bumps
Connected structure；The input for rotating forward transmission mechanism is the rotating forward driving tooth for being rotatably sleeved on power input shaft one end
Wheel, the input of reversing driving invert driving gear to be rotatably sleeved on the power input shaft other end, rotated forward actively
One end end face each faced on gear and reversion driving gear is provided with concave-convex fit structure；The fixed clutch-plate and work
Dynamic clutch-plate is in when being spaced apart state, the concavo-convex grafting fit structure of connecting cylinder outer end end face and rotates forward driving gear
And the concave-convex fit structure of reversion driving gear end face is in released state, at the fixed clutch-plate and movable clutch-plate
When bonding state is adjacent to, the concavo-convex grafting fit structure and rotating forward driving gear of connecting cylinder outer end end face or reversion master
The concave-convex fit structure of moving gear end face is in castellated mated condition；Rotating switching control also includes being arranged on casing
On switching control unit, the switching control unit be used for control movable clutch-plate mounting cup vertically left and right translate and realize
The switching of left and right bonding position state between fixed clutch-plate and movable clutch-plate.
6. the manual transmission especially suitable for agricultural machinery as claimed in claim 5, it is characterised in that on the power input shaft
Clutch-plate construction section be more than the enlarged diameter sections of other positions for one section of diameter.
7. the manual transmission especially suitable for agricultural machinery as claimed in claim 5, it is characterised in that rotating switching control fills
Putting also includes clutch disengaging spring, and the clutch disengaging spring acts axially on movable clutch-plate along power input shaft and installed
Cover between the output end of switching control unit and transmit left and right bonding position between the fixed clutch-plate of control and movable clutch-plate
The active force of state switching.
8. the manual transmission especially suitable for agricultural machinery as claimed in claim 7, it is characterised in that the clutch separation bullet
Spring is be symmetrical set two to reverse gear outside support shaft in the helical spring of compressive state and being set in, two clutches point
There are a spring push-plate, movable clutch-plate installation from the ground sheathed setting that can also be slid axially in the support shaft of reversing gear between spring
Cover side, which has to the support direction of principal axis that reverses gear, extends the spring mountings to be formed, and support shaft of reversing gear is set through spring mountings,
At left and right sides of spring push-plate each between spring mountings formed with a spring installation cavity and for installing clutch separation
Spring；Spring push-plate is connected away from the side in power input shaft direction with switching control unit.
9. the manual transmission especially suitable for agricultural machinery as claimed in claim 8, it is characterised in that in clutch-plate vertically
Movable sleeve is gone back on the power input shaft at both ends and is connected to a main clutch push-plate, main clutch push-plate is arranged on movable clutch-plate mounting cup
Inside, main clutch push-plate outer end has extends the clutch-plate to be formed compression force section toward clutch-plate direction vertically；The power
Also each it is socketed positioned at clutch-plate both ends on input shaft and is provided with a push-plate abutting cylinder, the company at movable clutch-plate mounting cup both ends
Connect cylinder is actively socketed on push-plate and abutted outside cylinder, and push-plate abuts cylinder and is used in the second half stroke of clutch switching control and main clutch
The inner outside of push-plate offsets, and the clutch-plate of winner's clutch push-plate outer end is compressed force section and clutch-plate force is compressed.
10. the manual transmission especially suitable for agricultural machinery as claimed in claim 8, it is characterised in that the switching control machine
Structure, including a clutch sector control arm of box outer surface is arranged on, clutch sector control arm passes through horizontally disposed rotating shaft
It is installed in rotation on casing, clutch sector control arm lower end is connected with the gear control arm extended lateral out, clutch
Fan-shaped control arm upper surface is integrally curved and upper surface on there is the engaging tooth arcuately set；Switching control unit also includes
One be installed in rotation on casing clutch for clutch control rotation gear, clutch for clutch control rotation gear vertically installation and downside and from
The engaging tooth engagement of hinge shape control arm, the inner of clutch for clutch control rotation gear vertically extend to box house and at inner end
Prejudicially evagination is provided with clutch for clutch control output section in face, and switching control unit also includes the spring push-plate, spring push-plate and work
The side of dynamic clutch-plate mounting cup opposite direction is provided with a vertical chute, and the clutch for clutch control rotation gear is inner eccentric
The clutch for clutch control output section of setting coordinates in chute in which can slide vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720494068.9U CN206708343U (en) | 2017-05-05 | 2017-05-05 | Manual transmission especially suitable for agricultural machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720494068.9U CN206708343U (en) | 2017-05-05 | 2017-05-05 | Manual transmission especially suitable for agricultural machinery |
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| Publication Number | Publication Date |
|---|---|
| CN206708343U true CN206708343U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720494068.9U Active CN206708343U (en) | 2017-05-05 | 2017-05-05 | Manual transmission especially suitable for agricultural machinery |
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| CN (1) | CN206708343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023647A (en) * | 2017-05-05 | 2017-08-08 | 杨书琼 | A kind of manual transmission |
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2017
- 2017-05-05 CN CN201720494068.9U patent/CN206708343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023647A (en) * | 2017-05-05 | 2017-08-08 | 杨书琼 | A kind of manual transmission |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Yunping Inventor before: Yang Shuqiong |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180323 Address after: 401329 the Jiulongpo District of Chongqing Municipality Gu Zhen Han Road Patentee after: CHONGQING YUXIN PINRUI ELECTRONIC CO., LTD. Address before: 401329 Chongqing Jiulongpo Baishiyi town of Bailong Road No. 25 building 6 1 unit 5-1 Patentee before: Yang Shuqiong |