CN208203943U - Tracked vehicle gearbox and caterpillar band harvester - Google Patents
Tracked vehicle gearbox and caterpillar band harvester Download PDFInfo
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- CN208203943U CN208203943U CN201820302540.9U CN201820302540U CN208203943U CN 208203943 U CN208203943 U CN 208203943U CN 201820302540 U CN201820302540 U CN 201820302540U CN 208203943 U CN208203943 U CN 208203943U
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Abstract
The utility model provides a kind of tracked vehicle gearbox and caterpillar band harvester, it is related to technical field of agricultural machinery, including input shaft, the first output shaft, the second output shaft, successively the first transmission mechanism, driven by craspedodrome mechanism and the box of tricks, successively the second transmission mechanism, steering driving mechanism, third transmission mechanism and the turnover mechanism, the 4th transmission mechanism that are sequentially connected that are sequentially connected；Input shaft is sequentially connected with the first transmission mechanism and the second transmission mechanism respectively；Box of tricks includes the first differential assembly and the second differential assembly；First differential assembly and the second differential assembly are sequentially connected with the first output shaft and the second output shaft respectively；Steering driving mechanism is sequentially connected by the 4th transmission mechanism and the second differential assembly, so that the driving wheel of box of tricks driving two sides crawler belt turns on the contrary.The utility model realizes when endless-track vehicle turns to while driving two sides crawler belt, can give full play to the maximum driving force of two sides crawler belt, and steering power is big, and trafficability is high.
Description
Technical field
The utility model relates to technical field of agricultural machinery, gather in more particularly, to a kind of tracked vehicle gearbox and crawler belt
Machine.
Background technique
Currently, the gearbox of domestic crawler type corn mowing machine generallys use single power transmission, steering mode is using unilateral
Crawler belt power cut or one side brake realize that large radius turns to or one side brake turns to.
For gearbox using single power flow transmission, the mechanical secondary speed change of third gear is generally arranged in gearbox, realizes vehicle point not same district
Steering cluth is arranged in the variable speed of section, gearbox jackshaft two sides, by the combination and the steering cluth knot that control dental inlay
It closes, realizes the dynamic Control and braking to two sides drive sprocket.Prior art transmits power, speed change using single power flow
One side drive wheel is braked when case turns to, side drive wheel sprocket wheel, and driving force is small.
Utility model content
The purpose of this utility model is to provide a kind of tracked vehicle gearbox and caterpillar band harvesters, can effectively avoid receipts
Remaining components in cutting mill, and can be realized when endless-track vehicle turns to while driving two sides crawler belt, two sides crawler belt can be given full play to
Maximum driving force, steering power is big, and trafficability is high；Improve the steering circle control range and control precision of endless-track vehicle；
And crawler belt is small to the shearing work of soil in steering procedure, is not likely to produce mud, small to the destruction on ground.
To achieve the above object, the utility model the following technical schemes are provided:
In a first aspect, the utility model provides a kind of tracked vehicle gearbox, comprising: input shaft, the first transmission mechanism,
Two transmission mechanisms, driven by craspedodrome mechanism, steering driving mechanism, gear, box of tricks, the first output shaft, the second output shaft,
Third transmission mechanism, the 4th transmission mechanism and turnover mechanism；
The driven by craspedodrome mechanism is sequentially connected by first transmission mechanism and the input shaft, and the straight trip is driven
Motivation structure is sequentially connected by the gear and the box of tricks；
The box of tricks includes the first differential assembly and the second differential assembly；First output shaft with it is described first poor
Fast component transmission connection, second output shaft and second differential assembly are sequentially connected, and first output shaft and institute
It states the second output shaft to be sequentially connected with the driving wheel of two sides crawler belt respectively, for driving the movement of endless-track vehicle two sides crawler belt；
The steering driving mechanism is sequentially connected by second transmission mechanism and the input shaft, and the steering is driven
Motivation structure is sequentially connected with the third transmission mechanism and the 4th transmission mechanism respectively；And the third transmission mechanism passes through
The turnover mechanism and first differential assembly are sequentially connected, and the 4th transmission mechanism and second differential assembly are driven
Connection, so that the driving wheel of box of tricks driving two sides crawler belt turns on the contrary.
Further, the driven by craspedodrome mechanism includes the first hydraulic pump and the first hydraulic motor；First hydraulic pump
It is sequentially connected with the transmission mechanism, for adjusting the revolving speed of first hydraulic motor.
Further, the gear include variable-speed shaft and the low-speed gear being successively set on the variable-speed shaft,
Selector fork and high gear, the selector fork are used to adjust the position of the low-speed gear and the high gear so that institute
The output shaft for stating low-speed gear or the high gear and first hydraulic motor is sequentially connected.
Further, the gear further includes the first brake axle, first brake axle and the low-speed gear and
The high gear is sequentially connected by gear pair, and first brake axle and the box of tricks are sequentially connected；Described
One brake axle is equipped with the first brake for stopping brake.
Further, the box of tricks further include sun wheel shaft, the central gear that is installed in the sun wheel shaft；Institute
It states the first differential assembly and second differential assembly is symmetricly set on the two sides of the central gear, the box of tricks passes through
The central gear and first brake axle are sequentially connected.
Further, first differential assembly and/or second differential assembly include and the sun wheel shaft gear teeth
Multiple planetary gears of engagement, the gear ring and planet carrier engaged with the planetary gear, multiple planetary gears are evenly arranged on the row
In carrier；The ring gear against rotation is installed on the planet carrier；
Planet carrier in first output shaft and first differential assembly is sequentially connected；
Planet carrier in second output shaft and second differential assembly is sequentially connected.
Further, the steering driving mechanism includes the second hydraulic pump and the second hydraulic motor；Second hydraulic pump
It is sequentially connected with the transmission mechanism, for adjusting the revolving speed of second hydraulic motor.
Further, the tracked vehicle gearbox further includes the second brake axle；
Second brake axle is equipped with the second brake for braking in a turn；
Second brake axle and the steering driving mechanism transmission connection, and second brake axle respectively with it is described
Third transmission mechanism and the transmission connection of the 4th transmission mechanism.
Further, the tracked vehicle gearbox further includes the 5th transmission mechanism；Second brake axle passes through described
5th transmission mechanism is sequentially connected with the third transmission mechanism and the 4th transmission mechanism respectively.
Second aspect, the utility model also provide a kind of caterpillar band harvester, the driving wheel including engine and two sides crawler belt,
It further include tracked vehicle gearbox described in any one of first aspect, in the engine and the tracked vehicle gearbox
Input shaft transmission connection；The driving wheel of two sides crawler belt respectively with the first output shaft and in the tracked vehicle gearbox
The transmission connection of two output shafts.
Tracked vehicle gearbox and caterpillar band harvester provided by the utility model have the advantages that
The utility model first aspect provides a kind of tracked vehicle gearbox, comprising: input shaft, the first transmission mechanism,
Two transmission mechanisms, driven by craspedodrome mechanism, steering driving mechanism, gear, box of tricks, the first output shaft, the second output shaft,
Third transmission mechanism, the 4th transmission mechanism and turnover mechanism；Driven by craspedodrome mechanism is driven by the first transmission mechanism and input shaft
Connection, and driven by craspedodrome mechanism is sequentially connected by gear and box of tricks；Box of tricks include the first differential assembly and
Second differential assembly；First output shaft and the first differential assembly are sequentially connected, and the second output shaft and the transmission of the second differential assembly connect
It connects, and the first output shaft and the second output shaft are sequentially connected with the driving wheel of two sides crawler belt respectively, for driving endless-track vehicle two
The movement of side crawler belt；Steering driving mechanism is sequentially connected by the second transmission mechanism and input shaft, and steering driving mechanism is distinguished
It is sequentially connected with third transmission mechanism and the 4th transmission mechanism；And third transmission mechanism passes through turnover mechanism and the first differential assembly
Transmission connection, the 4th transmission mechanism and the second differential assembly are sequentially connected, so that the driving wheel of box of tricks driving two sides crawler belt
It turns to opposite.
Tracked vehicle gearbox provided by the utility model, it is compact-sized, it is applied to harvester, effectively adapts in harvester
Installation space, avoid the position of other components from limiting.Power is distributed to the first transmission mechanism and by transmission input shaft
Two transmission mechanisms, the first driving mechanism independently drive driven by craspedodrome mechanism, and the second transmission mechanism independently drives steering driving mechanism.
Gearbox input speed is switched to high speed and two gears of low speed by driven by craspedodrome mechanism and gear.Gear is by power
Box of tricks is passed to, power is transferred to the first differential assembly and the second differential assembly respectively, and the first differential assembly passes power
It is handed to the first output shaft, power is transferred to the second output shaft by the second differential assembly, and therefore, driven by craspedodrome mechanism is after speed change
Power pass through box of tricks driving the left and right sides the first output shaft and the second output shaft.Steering driving mechanism transmits power
To third transmission mechanism and the 4th transmission mechanism, third transmission mechanism is sequentially connected by turnover mechanism and the first differential assembly,
4th transmission mechanism is connect with the second differential assembly direct-drive.The power of steering driving mechanism passes through turnover mechanism speed one
It causes, be transferred to box of tricks, the first differential assembly and the second differential assembly in the opposite direction with different steering output, and will move
Power is exported to the first output shaft of two sides and the second output shaft, so that left and right sides crawler belt side advance side be made to retreat, is realized and is turned
To.Tracked vehicle gearbox provided by the utility model can effectively avoid remaining components in harvester and carry out
Two sides crawler belt is driven simultaneously when band Vehicular turn, the maximum driving force of two sides crawler belt can be given full play to, steering power is big, and vehicle is logical
The property crossed is high；Improve the steering circle control range and control precision of endless-track vehicle；And shearing of the crawler belt to soil in steering procedure
Operation is small, is not likely to produce mud, small to the destruction on ground.
The caterpillar band harvester that the utility model second aspect provides is provided with the crawler belt of the utility model first aspect offer
Vehicle gear box, so that all are beneficial to effect possessed by the tracked vehicle gearbox provided with the utility model first aspect
Fruit.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram one of tracked vehicle gearbox provided by the embodiment of the utility model；
Fig. 2 is the schematic diagram two of tracked vehicle gearbox provided by the embodiment of the utility model；
Fig. 3 is sectional view along A-A in Fig. 1；
Fig. 4 is the enlarged drawing in Fig. 3 at C；
Fig. 5 is B-B direction cross-sectional view in Fig. 2；
Fig. 6 is the transmission schematic diagram of tracked vehicle gearbox provided by the embodiment of the utility model；
Fig. 7 is that box of tricks two sides provided in an embodiment of the present invention planet carrier exports rotational speed omegaplanetCarrierAbout steering
The curve graph of HST discharge capacity；
Fig. 8 is endless-track vehicle turning radius provided in an embodiment of the present invention about the curve graph for turning to HST discharge capacity.
Icon: 1- input shaft；The first transmission mechanism of 2-；The second transmission mechanism of 3-；4- driven by craspedodrome mechanism；5- turns to driving
Mechanism；The first output shaft of 6-；The second output shaft of 7-；8- third transmission mechanism；The 4th transmission mechanism of 9-；10- turnover mechanism；11-
Variable-speed shaft；12- low-speed gear；13- high gear；14- selector fork；15- shift sleeve；The first brake axle of 16-；17-
One brake；18- sun wheel shaft；19- central gear；The first differential assembly of 20-；The second differential assembly of 21-；22- second is braked
Axis；23- second brake；The 5th transmission mechanism of 24-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Please refer to Fig. 1-Fig. 8, below in conjunction with attached drawing to tracked vehicle gearbox provided by the embodiment of the utility model and
Caterpillar band harvester elaborates.
The embodiment of the utility model first aspect provides a kind of tracked vehicle gearbox, comprising: input shaft 1, first
Transmission mechanism 2, the second transmission mechanism 3, driven by craspedodrome mechanism 4, steering driving mechanism 5, box of tricks, the first output shaft 6, second
Output shaft 7, third transmission mechanism 8, the 4th transmission mechanism 9 and turnover mechanism 10；Driven by craspedodrome mechanism 4 passes through the first transmission mechanism
2 are sequentially connected with input shaft 1, and driven by craspedodrome mechanism 4 and box of tricks are sequentially connected；Box of tricks includes the first differential assembly
20 and second differential assembly 21；First output shaft 6 and the first differential assembly 20 are sequentially connected, the second output shaft 7 and the second differential
Component 21 is sequentially connected, and the first output shaft 6 and the second output shaft 7 are sequentially connected with the driving wheel of two sides crawler belt respectively, are used for
Drive the movement of endless-track vehicle two sides crawler belt；Steering driving mechanism 5 is sequentially connected by the second transmission mechanism 3 with input shaft 1, and
Steering driving mechanism 5 is sequentially connected with third transmission mechanism 8 and the 4th transmission mechanism 9 respectively；And third transmission mechanism 8 is by turning over
Rotation mechanism 10 and the first differential assembly 20 are sequentially connected, and the 4th transmission mechanism 9 and the second differential assembly 21 are sequentially connected, so that
It is opposite that box of tricks drives the driving wheel of two sides crawler belt to turn to.
The tracked vehicle gearbox that the embodiments of the present invention provide, it is compact-sized, it is applied to harvester, effectively adapts to
Installation space in harvester avoids the position of other components from limiting.Power is distributed to the first transmission by transmission input shaft 1
Mechanism 2 and the second transmission mechanism 3, the first driving mechanism independently drive driven by craspedodrome mechanism 4, the independent driving of the second transmission mechanism 3
Steering driving mechanism 5.Gearbox input speed is switched to high speed and two shelves of low speed by driven by craspedodrome mechanism 4 and gear
Position.Gear imparts power to box of tricks, and power is transferred to the first differential assembly 20 and the second differential assembly 21 respectively,
Power is transferred to the first output shaft 6 by the first differential assembly 20, and power is transferred to the second output shaft 7 by the second differential assembly 21,
Therefore, the first output shaft 6 and second that power of the driven by craspedodrome mechanism 4 after speed change passes through the box of tricks driving left and right sides
Output shaft 7.Power is transferred to third transmission mechanism 8 and the 4th transmission mechanism 9 by steering driving mechanism 5, and third transmission mechanism 8 is logical
It crosses turnover mechanism 10 and the first differential assembly 20 is sequentially connected, the 4th transmission mechanism 9 and 21 direct-drive of the second differential assembly connect
It connects.The power of steering driving mechanism 5 is consistent by 10 speed of turnover mechanism, is transferred to box of tricks in the opposite direction, and first is poor
Fast component 20 and the second differential assembly 21 are exported with different steerings, and output power to the first output shaft of two sides 6 and second
Output shaft 7 is realized and is turned to so that left and right sides crawler belt side advance side be made to retreat.What the embodiments of the present invention provided
Tracked vehicle gearbox can be avoided effectively when remaining components and endless-track vehicle turn in harvester while be driven
Dynamic two sides crawler belt, can give full play to the maximum driving force of two sides crawler belt, and steering power is big, and trafficability is high；Improve creeper truck
Steering circle control range and control precision；And crawler belt is small to the shearing work of soil in steering procedure, is not likely to produce silt
Mud is small to the destruction on ground.
In the optional scheme of the present embodiment, further, driven by craspedodrome mechanism 4 includes that the first hydraulic pump and first are hydraulic
Motor；First hydraulic pump and transmission mechanism are sequentially connected, for adjusting the revolving speed of the first hydraulic motor；First hydraulic motor it is defeated
Shaft and gear are sequentially connected.
In at least one embodiment, gearbox is driven by engine power by belt pulley.The input of gearbox
Power is distributed to the first transmission mechanism 2 by gear mechanism by axis 1, and the first of the independent driving straight trip of the first transmission mechanism 2 is hydraulic
Pump, the first hydraulic pump are specifically as follows hydraulic continuously variable transmission, and the first hydraulic pump drives the first hydraulic motor, and by adjusting the
The discharge capacity of one hydraulic pump realizes the stepless changing of motor speed output.The output shaft and gear of first hydraulic motor pass through tooth
Wheel engaged transmission.
In at least one embodiment, driven by craspedodrome mechanism 4 can also be electrical motor driven.
In the optional scheme of the present embodiment, further, tracked vehicle gearbox further includes gear, gear
Including variable-speed shaft 11 and the low-speed gear being successively set on variable-speed shaft 11 12, selector fork 14 and high gear 13, shift
Shift fork 14 is used to adjust the position of low-speed gear 12 and high gear 13 so that low-speed gear 12 or high gear 13 and first
The output shaft of hydraulic motor is sequentially connected.
In at least one embodiment, the first hydraulic motor output shaft drives variable-speed shaft 11, variable-speed shaft by gear structure
There is the low-speed gear 12 and high gear 13 for realizing gearbox shifting on 11, manipulate shift sleeve 15 using selector fork 14
Gearbox input speed is switched to two gears of low speed and high speed.
In the optional scheme of the present embodiment, further, gear further includes the first brake axle 16, the first brake axle
16 are sequentially connected with low-speed gear 12 and high gear 13 by gear pair, and the first brake axle 16 connects with box of tricks transmission
It connects；First brake axle 16 is equipped with the first brake 17 for stopping brake.From low-speed gear 12 and high gear 13
Power passes to the first brake axle 16 by gear mechanism, and the first brake axle 16 is equipped with the first brake for stopping brake
17.In at least one embodiment, the first brake 17 is multi-sheet wet-type brake.
In the optional scheme of the present embodiment, further, box of tricks further includes sun wheel shaft 18, is installed on the sun
Central gear 19 on wheel shaft 18；First differential assembly 20 and the second differential assembly 21 are symmetricly set on the two of central gear 19
Side, box of tricks are sequentially connected by central gear 19 and the first brake axle 16.The power of first brake axle 16 passes through central tooth
Wheel 19 imparts power to sun wheel shaft 18, and the driving of sun wheel shaft 18 configures symmetrical first differential assembly 20 and second
Differential assembly 21.
In the optional scheme of the present embodiment, further, the first differential assembly 20 and/or the second differential assembly 21 include
With multiple planetary gears of 18 gear teeth meshing of sun wheel shaft, the gear ring and planet carrier that engage with planetary gear, multiple planetary gears are evenly distributed with
On planet carrier；Ring gear against rotation is installed on planet carrier；Planet carrier in first output shaft 6 and the first differential assembly 20, which is driven, to be connected
It connects；Planet carrier transmission connection in second output shaft 7 and the second differential assembly 21.
In at least one embodiment, the first differential assembly 20 is identical with 21 structure of the second differential assembly.Left and right first is poor
Fast component 20 and the second differential assembly 21 respectively include the multiple planetary gears and planetary gear with 18 gear teeth meshing of sun wheel shaft
Multiple planetary gears are uniformly configured planet carrier on the same circumference by the gear ring of engagement.Gear ring is rotatably secured on planet carrier.
Planet carrier passes through the end driving gear of spline and left and right, and end driving gear is engaged with end driven gear.Therefore, the first liquid
Power of the pressure motor after speed change is by the first differential assembly 20 of the left and right sides and the second differential assembly 21 to both-side ends
Driven gear is transmitted with equidirectional same rotating speed, drives the first output shaft 6 and the second output shaft 7 of the left and right sides.
In the optional scheme of the present embodiment, further, steering driving mechanism 5 includes that the second hydraulic pump and second are hydraulic
Motor；Second hydraulic pump and transmission mechanism are sequentially connected, for adjusting the revolving speed of the second hydraulic motor.
In at least one embodiment, gearbox is driven by engine power by belt pulley.The input of gearbox
Power is distributed to the second transmission mechanism 3 by gear mechanism by axis 1, and the second of the independent driving steering of the second transmission mechanism 3 is hydraulic
Pump, the second hydraulic pump are specifically as follows hydraulic continuously variable transmission, and the second hydraulic pump drives the second hydraulic motor, and by adjusting the
The discharge capacity of two hydraulic pumps realizes the stepless changing of motor speed output.
In at least one embodiment, steering driving mechanism 5 can also be electrical motor driven.
In the optional scheme of the present embodiment, further, tracked vehicle gearbox further includes the second brake axle 22；Second
Brake axle 22 is equipped with the second brake 23 for braking in a turn；What the second brake axle 22 was sequentially connected with steering driving mechanism 5,
And second brake axle 22 be sequentially connected respectively with third transmission mechanism 8 and the 4th transmission mechanism 9.Second brake axle 22 and the second horse
The output axis connection reached, the power from steering driving mechanism 5 pass to the second brake axle 22, and the second brake axle 22, which is equipped with, to be used
In the second brake 23 of braking in a turn.In at least one embodiment, second brake 23 is multi-sheet wet-type brake.
In the optional scheme of the present embodiment, further, tracked vehicle gearbox further includes the 5th transmission mechanism 24；The
Two brake axles 22 are sequentially connected with third transmission mechanism 8 and the 4th transmission mechanism 9 respectively by the 5th transmission mechanism 24.
In at least one embodiment, the 5th transmission mechanism 24 is intermediate gear mechanism, and turnover mechanism 10 is turning gear.
The power of second hydraulic motor output shaft passes through the 5th transmission mechanism 24, third transmission mechanism 8, the 4th transmission mechanism 9 and overturning
10 speed of mechanism is consistent, is transferred to the gear ring of the first differential assembly 20 and the second differential assembly 21 in the opposite direction.
First differential assembly 20 is with the second differential assembly 21 since sun gear input speed is identical, and gear ring input speed is not
Together, left and right planet carrier exports at different rates, and outputs power to two side drive wheels by end gear mechanism, to make
Left and right sides crawler belt generates speed difference, realizes that two sides crawler belt is turned to the radius of turning circle set.
19 rotational speed omega of central gear in box of trickssun, planet carrier rotational speed omegaplanetCarrierWith gear ring rotational speed omegaRing's
Movement relation can be indicated with formula 1:
Wherein, k is planetary mechanism characteristic parameter, k=-ZRing/ZSun；
ZRing: the gear ring number of teeth；
ZSun: the sun gear number of teeth.
In steering procedure, in the case where engine output revolving speed is constant, by vehicle control mechanism, increases and turn to second
Hydraulic pump, that is, driving mechanism (turning to HST, HydroStaticTransmission, the abbreviation of hydrostatic transmission) variable pump
While discharge capacity, the first hydraulic pump, that is, driven by craspedodrome mechanism (straight trip HST) variable pumpage is reduced, turns the second hydraulic motor i.e.
It is improved to hydraulic motor output speed, the i.e. straight trip hydraulic motor output speed of the first hydraulic motor reduces, two skidding of box of tricks
Carrier exports rotational speed omegaplanetCarrierIt can be calculated by formula 1, as shown in Figure 7.
Two side drive wheels export rotational speed omegaOutputIt can be by ωplanetCarrierPass through box of tricks to output shaft gear transmission ratio
It calculates.
According to the dynamic radius r of driving wheel, the travel speed V of left and right sides crawler beltL、VRIt can be calculated respectively by formula 2:
V=ωOutput× r formula 2
Since left and right track gage B is given value, Vehicular turn radius R can be calculated according to formula 3:
In steering procedure, according to two sides crawler belt travel speed VL、VRVariation, Vehicular turn radius R change such as Fig. 8 institute
Show.
As can be seen that gradually increasing with HST discharge capacity is turned to from Fig. 7 and Fig. 8, straight trip HST discharge capacity is gradually reduced, vehicle
Turning radius is gradually reduced, final to realize that turning radius is 0 pivot stud, whole process turning radius step-less adjustment.
In at least one embodiment, the second brake 23 being connected with the second hydraulic motor uses and suppresses compression type multi-disc
Wet brake, in vehicle straight trip, friction plate brakes left and right gear ring by spring compression, to guarantee to carry out in left and right
Vehicle can reliably keep straight on when band operating condition difference, and when steering, the second hydraulic motor output torque overcomes second brake 23
Pressing force of the spring separates brake strip, so that speed is consistent, drives left and right gear ring in the opposite direction, realizes and turns to.
The form of control stick can also be used in steering wheel operating in above scheme.
The tracked vehicle gearbox that the embodiment of the utility model first aspect provides is applied to caterpillar band harvester, improves
The passability of crawler-type harvester driving force and wet field in steering procedure, steering power are big；Improve turning for caterpillar band harvester
To circle control range and control precision, it can be achieved that the step-less adjustment of harvester radius of turning circle, including no-radius turning, raising turn
To flexibility and farm work working efficiency, crawler belt is small to the shearing work of soil in steering procedure, be not likely to produce mud,
It is small to the destruction in field；Solve the differential locking of two sides crawler belts and parking braking when caterpillar band harvester such as rice machine is kept straight on
Safety problem；Gear box shift structure is simple, and using wheel steering, handling maneuver is comfortable, and steering range is big, and control is accurate；
It solves the endurance issues of transfer gear box steering, improves the service life of gearbox.
The embodiment of the utility model second aspect provides a kind of caterpillar band harvester, including engine and two sides crawler belt
Driving wheel, further includes the tracked vehicle gearbox in the embodiment of first aspect, engine with it is defeated in tracked vehicle gearbox
Enter the transmission connection of axis 1；The driving wheel of two sides crawler belt respectively with the first output shaft 6 and the second output shaft in tracked vehicle gearbox
7 transmission connections.
The caterpillar band harvester that the embodiment of the utility model second aspect provides is provided with the utility model first aspect
The tracked vehicle gearbox that embodiment provides, so that the endless-track vehicle that the embodiment with the utility model first aspect provides becomes
All beneficial effects possessed by fast case.
The tracked vehicle gearbox of the utility model and caterpillar band harvester are illustrated above, still, this is practical new
Type is not limited to above-mentioned specific embodiment, without departing from the scope of the claims, can carry out various deformations
Or change.The various modifications and change that the utility model is included within the scope of the claims.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although utility model is described in detail referring to foregoing embodiments, those skilled in the art should be managed
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills
Art feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution.
Claims (10)
1. a kind of tracked vehicle gearbox characterized by comprising input shaft (1), the first transmission mechanism (2), the second driver
Structure (3), driven by craspedodrome mechanism (4), steering driving mechanism (5), box of tricks, the first output shaft (6), the second output shaft (7),
Three transmission mechanisms (8), the 4th transmission mechanism (9) and turnover mechanism (10)；
The driven by craspedodrome mechanism (4) is sequentially connected by first transmission mechanism (2) and the input shaft (1), and described
Driven by craspedodrome mechanism (4) and the box of tricks are sequentially connected；
The box of tricks includes the first differential assembly (20) and the second differential assembly (21)；First output shaft (6) and institute
The first differential assembly (20) transmission connection is stated, second output shaft (7) and second differential assembly (21) are sequentially connected, and
First output shaft (6) and second output shaft (7) are sequentially connected with the driving wheel of two sides crawler belt respectively, carry out for driving
Movement with vehicle two sides crawler belt；
The steering driving mechanism (5) is sequentially connected by second transmission mechanism (3) and the input shaft (1), and described
Steering driving mechanism (5) is sequentially connected with the third transmission mechanism (8) and the 4th transmission mechanism (9) respectively；And it is described
Third transmission mechanism (8) is sequentially connected by the turnover mechanism (10) and first differential assembly (20), and the described 4th passes
Motivation structure (9) and second differential assembly (21) are sequentially connected, so that the driving wheel of box of tricks driving two sides crawler belt
It turns to opposite.
2. tracked vehicle gearbox according to claim 1, which is characterized in that the driven by craspedodrome mechanism (4) includes the
One hydraulic pump and the first hydraulic motor；First hydraulic pump and the transmission mechanism are sequentially connected, for adjusting described first
The revolving speed of hydraulic motor.
3. tracked vehicle gearbox according to claim 2, which is characterized in that the tracked vehicle gearbox further includes becoming
Fast mechanism, the driven by craspedodrome mechanism (4) are sequentially connected by the gear and the box of tricks；
The gear includes variable-speed shaft (11) and the low-speed gear (12) being successively set on the variable-speed shaft (11), changes
Shift fork (14) and high gear (13) are kept off, the selector fork (14) is for adjusting the low-speed gear (12) and the high speed tooth
Take turns (13) position so that the low-speed gear (12) or the high gear (13) and first hydraulic motor output
Axis transmission connection.
4. tracked vehicle gearbox according to claim 3, which is characterized in that the gear further includes the first braking
Axis (16), first brake axle (16) are connected with the low-speed gear (12) and the high gear (13) by gear auxiliary driving
It connects, and first brake axle (16) and the box of tricks are sequentially connected；First brake axle (16) is equipped with for stopping
The first brake (17) of vehicle braking.
5. tracked vehicle gearbox according to claim 4, which is characterized in that the box of tricks further includes sun wheel shaft
(18), the central gear (19) being installed on the sun wheel shaft (18)；First differential assembly (20) and described second poor
Fast component (21) is symmetricly set on the two sides of the central gear (19), the box of tricks by the central gear (19) with
First brake axle (16) transmission connection.
6. tracked vehicle gearbox according to claim 5, which is characterized in that first differential assembly (20) and/or
Second differential assembly (21) includes nibbling with multiple planetary gears of the sun wheel shaft (18) gear teeth meshing, with the planetary gear
The gear ring and planet carrier of conjunction, multiple planetary gears are evenly arranged on the planet carrier；The ring gear against rotation is installed on the row
Carrier；
Planet carrier in first output shaft (6) and first differential assembly (20) is sequentially connected；
Planet carrier in second output shaft (7) and second differential assembly (21) is sequentially connected.
7. tracked vehicle gearbox according to claim 1, which is characterized in that the steering driving mechanism (5) includes the
Two hydraulic pumps and the second hydraulic motor；Second hydraulic pump and the transmission mechanism are sequentially connected, for adjusting described second
The revolving speed of hydraulic motor.
8. tracked vehicle gearbox according to claim 7, which is characterized in that the tracked vehicle gearbox further includes
Two brake axles (22)；
Second brake axle (22) is equipped with the second brake (23) for braking in a turn；
What second brake axle (22) and the steering driving mechanism (5) were sequentially connected, and second brake axle (22) point
It is not sequentially connected with the third transmission mechanism (8) and the 4th transmission mechanism (9).
9. tracked vehicle gearbox according to claim 8, which is characterized in that the tracked vehicle gearbox further includes
Five transmission mechanisms (24)；Second brake axle (22) by the 5th transmission mechanism (24) respectively with the third driver
Structure (8) and the transmission connection of the 4th transmission mechanism (9).
10. a kind of caterpillar band harvester, the driving wheel including engine and two sides crawler belt, which is characterized in that further include claim 1
To tracked vehicle gearbox described in any one of 9, the input shaft (1) in the engine and the tracked vehicle gearbox is passed
Dynamic connection；The driving wheel of two sides crawler belt respectively with the first output shaft (6) in the tracked vehicle gearbox and second defeated
Shaft (7) transmission connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820302540.9U CN208203943U (en) | 2018-03-05 | 2018-03-05 | Tracked vehicle gearbox and caterpillar band harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820302540.9U CN208203943U (en) | 2018-03-05 | 2018-03-05 | Tracked vehicle gearbox and caterpillar band harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203943U true CN208203943U (en) | 2018-12-07 |
Family
ID=64535189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820302540.9U Active CN208203943U (en) | 2018-03-05 | 2018-03-05 | Tracked vehicle gearbox and caterpillar band harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194604A (en) * | 2018-03-05 | 2018-06-22 | 雷沃重工股份有限公司 | Tracked vehicle gearbox and caterpillar band harvester |
| CN111271427A (en) * | 2020-04-01 | 2020-06-12 | 浙江四方集团公司 | Integral double HST planetary differential steering gearbox |
-
2018
- 2018-03-05 CN CN201820302540.9U patent/CN208203943U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194604A (en) * | 2018-03-05 | 2018-06-22 | 雷沃重工股份有限公司 | Tracked vehicle gearbox and caterpillar band harvester |
| CN108194604B (en) * | 2018-03-05 | 2024-02-20 | 潍柴雷沃智慧农业科技股份有限公司 | Gear box of tracked vehicle and tracked harvester |
| CN111271427A (en) * | 2020-04-01 | 2020-06-12 | 浙江四方集团公司 | Integral double HST planetary differential steering gearbox |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261000 No.192, Beihai South Road, Fangzi District, Weifang City, Shandong Province Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |
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