CN206555374U - Preposition transmission case, tractor and operation tractor - Google Patents
Preposition transmission case, tractor and operation tractor Download PDFInfo
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- CN206555374U CN206555374U CN201720221846.7U CN201720221846U CN206555374U CN 206555374 U CN206555374 U CN 206555374U CN 201720221846 U CN201720221846 U CN 201720221846U CN 206555374 U CN206555374 U CN 206555374U
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Abstract
The utility model is related to working truck construction applications, it is intended to which solving the problem of existing tractor work section transmission structure design is difficult, there is provided a kind of preposition transmission case, tractor and operation tractor.Preposition transmission case includes transmission case body, is rotatably assorted in the power input shaft of transmission case body, is rotatably assorted spaced reciprocally in transmission case body with power input shaft and the power output shaft with relative clutch end and connection end and including being arranged in power output shaft and can realize the importation of mutual clutch and the hydraulic clutch of output par, c.Importation is connected in power input shaft；Output par, c be connected in power output shaft and can be driven in the presence of hydraulic coupling pressing importation realize transmission engagement, or after hydraulic coupling is lost disengage importation realize transmission separation.The beneficial effects of the utility model are that the design of Working mechanism drive mechanism is simple, the clutch for clutch control of Working mechanism power and easy to operate.
Description
Technical field
The utility model is related to working truck construction applications, in particular to a kind of preposition transmission case.The utility model
Further relate to a kind of tractor for possessing the preposition transmission case.
Background technology
Set in the gearbox of the fabricated structure used on big-and-middle-sized four-wheel drive tractor traditional at present, its gearbox
There are running gear transmission mechanism, back axle differential, central transmission and arrestment mechanism, PTO system transmission mechanism and its manipulation device, make
The gearbox maximizes, weight and manufacturing cost increase, and manufacturing complication, and maintenance activity etc. becomes numerous and diverse.Constrain and drag
The development of machine drawing, also have impact on its application.Only one group of PTO system transmission mechanism in gearbox, it is not direct by slowing down
Into the final gearbox of tractor rear end, then by providing power, drive mechanism difficult design after speed change for agricultural machinery and implement.
Utility model content
The utility model aims to provide a kind of preposition transmission case, to solve tractor work section transmission of the prior art
The problem of structure design is difficult.
Another object of the present utility model is to provide a kind of tractor for possessing above-mentioned preposition transmission case.
A further object of the present utility model is to provide a kind of operation tractor for possessing above-mentioned preposition transmission case.
What embodiment of the present utility model was realized in：
A kind of preposition transmission case, it includes：
Transmission case body；
Power input shaft, is rotatably assorted in transmission case body；
Power output shaft, is rotatably assorted in transmission case body spaced reciprocally with power input shaft, and with relative power
Output end and connection end；
Hydraulic clutch, including be arranged in power output shaft and the importation and output section of mutual clutch can be realized
Point；Importation is connected in power input shaft；Output par, c is connected in power output shaft and can be in hydraulic coupling
Act on underdrive pressing importation and realize transmission engagement, or importation is disengaged after hydraulic coupling is lost and realize transmission separation.
In one embodiment of the present utility model：
Swivel joint, swivel joint includes relatively rotating the shell and connecting shaft of connection；Connecting shaft is fixed on power
The connection end of output shaft, shell is provided with hydraulic oil port；
Hydraulic channel, including be arranged at the first passage of connecting shaft and be arranged at power output shaft and connect first passage
Second channel；
First passage connects hydraulic oil port, the hydraulic cavities for being used to provide hydraulic coupling of second channel connection hydraulic clutch
Room.
In one embodiment of the present utility model：
Shell includes being additionally provided with compressing member in the accommodating chamber of one end open, accommodating chamber, and compressing member one end elasticity is resisted against appearance
Receive the bottom of chamber, other end sealing is pressed in the corresponding one end end face of connecting shaft；
The outer peripheral face of one end of connecting shaft is rotatably assorted in the side face of accommodating chamber by bearing.
In one embodiment of the present utility model：
The inner peripheral surface of output par, c is provided with annular groove, and the both sides of annular groove are respectively equipped with the inner peripheral surface for being sealed in output par, c
Sealing ring between power output shaft outer peripheral face；
The blind hole of axis extension of the second channel including the end face from the connection end of power output shaft along power output shaft, and
Radially extending and connect annular groove and the radial passage of blind hole along power output shaft.
In one embodiment of the present utility model：
Importation includes driving disc spacing pressing and the multiple spaced active friction plates being arranged in driving disc spacing pressing；Active friction
Piece is set along driving disc spacing pressing is axially slidable, and driving disc spacing pressing and active friction plate coordinate in circumferentially transmission；
Output par, c includes the follower that circumferential transmission is matched with power output shaft, the periphery of follower be arranged with it is some from
Movable friction plate, driven friction disk is set along follower is axially slidable, and follower and driven friction disk are matched somebody with somebody in circumferentially transmission
Close；
Each active friction plate and the cross arrangement successively of each driven friction disk；
Output par, c is provided with being sliding combined with cunning in the sliding cavity of active friction plate and driven friction disk, sliding cavity
Surrounded on the inside of block, sliding block and sliding cavity for accommodating hydraulic oil and providing the hydraulic chamber of hydraulic coupling；Hydraulic chamber's connected ring
Shape groove；
From the hydraulic coupling of hydraulic channel input hydraulic pressure chamber sliding block can be promoted to slide to promote active friction plate and driven
Friction plate compresses realize couple drive vertically, and from hydraulic chamber, unloading hydraulic coupling can be such that sliding block unclamps to disconnect active friction
The couple drive of piece and driven friction disk.
In one embodiment of the present utility model：
Follower also includes return spring；
Return spring supports sliding block to the bottom of sliding cavity, makes sliding block be intended to the basal sliding to sliding cavity to unclamp master
Pressing between movable friction plate and driven friction disk.
In one embodiment of the present utility model, preposition transmission case also includes：
Jackshaft, setting is relatively fixed with transmission case body；
Duplicate gear, is rotatably connected at jackshaft；
The importation that power input shaft passes through duplicate gear drive connection hydraulic clutch.
In one embodiment of the present utility model：
Duplicate gear includes larger the first sub- gear and less second sub- gear；It is fixed on the active of power input shaft
Gear engagement the first sub- gear of connection, is rotatably assorted in driven gear engagement the second sub- gear of connection of power output shaft.It is driven
The importation of the connected hydraulic clutch of gear.
A kind of tractor, it includes foregoing preposition transmission case, and the driving engine of tractor connects preposition transmission case
Power input shaft, and power input shaft can be driven to rotate；The clutch end of power output shaft is used for connection operation mechanism simultaneously
Drive Working mechanism running.
A kind of operation tractor, it includes Working mechanism and foregoing preposition transmission case, and the engine of operation tractor is passed
The power input shaft of the dynamic preposition transmission case of connection, and power input shaft can be driven to rotate；The clutch end of power output shaft
Drive connection Working mechanism simultaneously drives Working mechanism to operate；The front end of the vehicle frame of operation tractor is additionally provided with preposition frame, preposition
Frame is located at engine front；Preposition transmission case is fixed on preposition frame, and the engine of operation tractor is driven by universal drive shaft
Connect power input shaft.
The preposition transmission case that the utility model embodiment is provided, which is used to realize, can drive to clutch the power of tractor
Front end, simple with the design of Working mechanism drive mechanism to realize the Working mechanism of connection and driving front end, Working mechanism power
Clutch for clutch control and beneficial effect easy to operate.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the three-dimensional view of the tractor in the utility model embodiment one；
Fig. 2 is the view at Fig. 1 the first visual angle；
Fig. 3 is the view at Fig. 1 the second visual angle；
Fig. 4 is the view at Fig. 1 the 3rd visual angle；
Fig. 5 is engine in Fig. 1 and the schematic diagram of transmission case attachment structure；
Fig. 6 is the structural representation of the preposition transmission case in figure the utility model embodiment one；
Fig. 7 is Fig. 6 sectional view；
Fig. 8 is the structural representation of the hydraulic clutch in Fig. 5；
Fig. 9 is the structural representation of the swivel joint in Fig. 5；
Figure 10 is the operation tractor structure view in the utility model embodiment two.
Icon：001- operation tractors；010- tractors；1- transmission case bodies；The preposition transmission cases of 100-；11- hydraulic clutch
Device；11.1- followers；11.2- driven friction disks；11.3- driving disc spacing pressings；11.4- active friction plates；11.5- sliding blocks；11.6- is returned
Position spring；11.7- push rods；11.8- end blocks；12- swivel joints；12.1- connecting shafts；12.2- shells；12.3- hydraulic oil ports；
12.4- passages；12.5- compressing members；18- duplicate gears；The sub- gears of 18.1- first；The sub- gears of 18.2- second；19- keys；20-
Driven gear；24- power output shafts；25- protective covers；3- bearings；4- oil seal seats；5- oil sealings；6- power input shafts；6.1- actively
Gear；9- jackshafts；B1- importations；B2- output par, cs；D0- power intakes；D1- clutch ends；D2- connection ends；
F1- sealing rings；J1- Working mechanisms；K0- hydraulic channels；K1- first passages；K2- second channels；K3- annular grooves；K4- blind holes；
K5- radial passages；K6- blow vents；Q1- hydraulic chamber；Q2- accommodating chambers；Q3- sliding cavities；R1- vehicle frames；The preposition framves of R2-；R3- is sent out
Motivation；R4- universal drive shafts；R5- traveling components.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, if occur term " " center ", " on ", " under ", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " interior ", " outer " are based on orientation shown in the drawings or position
Relation, or the orientation usually put when using of the utility model product or position relationship, are for only for ease of description this reality
Described with new with simplified, rather than indicate or imply that the device or element of meaning must be with specific orientation, with specific
Azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.If in addition, occurring in description of the present utility model
Term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
If being not offered as requiring part in addition, occurring the term such as term " level ", " vertical " in description of the present utility model
Abswolute level or pendency, but can be slightly tilted.As " level " only refers to its direction with respect to more level for " vertical ",
It is not to represent that the structure must be fully horizontal, but can be slightly tilted.
Embodiment one
Fig. 1 is the three-dimensional view of the tractor 010 in the utility model embodiment；Fig. 2 is regarding for Fig. 1 the first visual angle
Figure；Fig. 3 is the view at Fig. 1 the second visual angle；Fig. 4 is the view at Fig. 1 the 3rd visual angle, and four figures show this with different view respectively
The structure of tractor 010 in embodiment.
Please referring especially to Fig. 1 (coordinate referring to Fig. 2, Fig. 3, Fig. 4), the tractor 010 in the present embodiment include by vehicle frame R1,
The traveling structure of the compositions such as engine R3, traveling component R5, in addition to preposition transmission case 100.The engine R3 mono- of tractor 010
Aspect drive connection traveling component R5, to drive the walking movement of tractor 010, another aspect engine R3 drive connections are preposition to be passed
The power input shaft 6 of dynamic case 100, and power input shaft 6 can be driven to rotate.The clutch end D1 of power output shaft 24 is used for
Connection operation mechanism simultaneously drives Working mechanism to operate.Working mechanism at this can be for the mechanism of snow removing, for gathering in agriculture
The mechanism of crop and the mechanism for other operations.Preferably, vehicle frame R1 front end is additionally provided with preposition frame R2, preposition frame R2
In front of engine R3.Preposition transmission case 100 is fixed on preposition frame R2.
Wherein, Fig. 5 is referred to, the connection between engine R3 and preposition transmission case 100 is：Pass through a universal drive shaft R4
Connect engine R3 output shaft facing forward and the power input shaft 6 of preposition transmission case 100.Before engine R3 can drive when operating
Put transmission case 100 and be connected to the Working mechanism progress operation of preposition transmission case 100.Preferably, the power of preposition transmission case 100
The clutch end D1 of output shaft 24 is set forward, with the setting for facilitating it to be connected between Working mechanism.
Fig. 6 is the structural representation of the preposition transmission case 100 in the utility model embodiment；Fig. 7 is Fig. 6 sectional view.
The preposition transmission case 100 referred in Fig. 6, Fig. 7, the present embodiment includes transmission case body 1, power input shaft 6, power output shaft
24th, hydraulic clutch 11 and swivel joint 12.
Fig. 7 is referred to, power input shaft 6 is rotatably assorted in transmission case body 1；Power output shaft 24 and the phase of power input shaft 6
Mutual compartment of terrain is rotatably assorted in transmission case body 1, and with relative clutch end D1 and connection end D2.Hydraulic clutch 11 is wrapped
Include and be arranged in power output shaft 24 and can realize the importation B1 and output par, c B2 of mutual clutch.Importation B1 is driven
It is connected to power input shaft 6；Output par, c B2 is connected in power output shaft 24 and can be driven in the presence of hydraulic coupling
Press importation B1 and realize transmission engagement, or importation B1 is disengaged after hydraulic coupling is lost and realize transmission separation.Alternatively,
Output par, c B2 passes through the drive connection power output shaft 24 of key 19.
Continuing with referring to Fig. 7, in an embodiment of the utility model embodiment, preposition transmission case 100 also includes
The jackshaft 9 of setting is relatively fixed with transmission case body 1 and is rotatably connected at the duplicate gear 18 of jackshaft 9.Duplicate gear
18 include larger the first sub- gear 18.1 and less second sub- gear 18.2；It is fixed on the driving gear of power input shaft 6
6.1 engagement the first sub- gears 18.1 of connection, are rotatably assorted in engagement the second sub- tooth of connection of driven gear 20 of power output shaft 24
Wheel 18.2.Hydraulic clutch 11 can be connected to clutch between driven gear 20 and power output shaft 24, so that power is defeated
Enter importation B1 of the axle 6 by the drive connection hydraulic clutch 11 of duplicate gear 18.Alternatively, one end of jackshaft 9 and biography
Rotary spacing is set between dynamic casing 1, and axial limiting is carried out by the back-up ring of axial direction, so that jackshaft 9 and the phase of transmission case body 1
To standing；Duplicate gear 18 is rotatably assorted in jackshaft 9 by needle bearing.
Transmitted by the setting of jackshaft 9 and the power of duplicate gear 18, it is convenient to which motivation of adjustment input shaft 6 is set
Gearratio between power output shaft 24.
The power intake D0 of previous power input shaft 6, the clutch end D1 of power output shaft 24 and power output
The connection end D2 of axle 24 is respectively provided with certain radial undulation, to avoid the oil leak in transmission process, in above-mentioned three ends part
Sealing setting is not carried out with oil sealing 5 and oil seal seat 4.
Fig. 8 is the detailed view of the hydraulic clutch 11 in Fig. 7.Refer in Fig. 8 (coordinating referring to Fig. 7), the present embodiment
Hydraulic clutch 11 output par, c B2 inner peripheral surface be provided with annular groove K3, annular groove K3 both sides be respectively equipped be sealed in it is defeated
The sealing ring F1 gone out between part B2 inner peripheral surface and the outer peripheral face of power output shaft 24.Second channel K2 is included from power output shaft
The blind hole K4 of axis extension of the 24 connection end D2 end face along power output shaft 24, and radially extending along power output shaft 24
And connect annular groove K3 and blind hole K4 radial passage K5.
The importation B1 of hydraulic clutch 11 in the present embodiment includes driving disc spacing pressing 11.3 and is arranged at driving disc spacing pressing 11.3
In multiple spaced active friction plates 11.4；Active friction plate 11.4 is set along driving disc spacing pressing 11.3 is axially slidable, and
And driving disc spacing pressing 11.3 and active friction plate 11.4 coordinate in circumferentially transmission.
Output par, c B2 includes the follower 11.1 that circumferential transmission is matched with power output shaft 24, the periphery of follower 11.1
Some driven friction disks 11.2 are arranged with, driven friction disk 11.2 is set along follower 11.1 is axially slidable, and follower
11.1 and driven friction disk 11.2 circumferentially transmission coordinate.Each active friction plate 11.4 and each driven friction disk 11.2 are successively
Cross arrangement.Output par, c B2 is provided with the sliding cavity Q3 of active friction plate 11.4 and driven friction disk 11.2, sliding cavity Q3
In be sliding combined with sliding block 11.5, surrounded on the inside of sliding block 11.5 and sliding cavity Q3 for accommodating hydraulic oil and providing hydraulic coupling
Hydraulic chamber Q1；Hydraulic chamber Q1 connection annular grooves K3.
From hydraulic channel K0 input hydraulic pressure chambers Q1 hydraulic coupling sliding block 11.5 can be promoted to slide to promote active friction
Piece 11.4 and driven friction disk 11.2 compress realize couple drive vertically, can make sliding block from hydraulic chamber Q1 unloadings hydraulic coupling
11.5 unclamp to disconnect the couple drive of active friction plate 11.4 and driven friction disk 11.2.Alternatively, follower 11.1 is also wrapped
Include return spring 11.6；Sliding block 11.5 is supported in the bottom of from return spring 11.6 to sliding cavity Q3, sliding block 11.5 is intended to cunning
Chamber Q3 basal sliding is moved to unclamp the pressing between active friction plate 11.4 and driven friction disk 11.2.Return spring 11.6
Set-up mode can not slotted in sliding block 11.5 and the output par, c B2 relative with sliding block 11.5, the two of return spring 11.6
End is respectively arranged in groove to realize support of the direction realization to sliding block 11.5 from follower 11.1 to sliding block 11.5.To realize
Space relative with hydraulic chamber Q1 sliding cavity Q3 can keep atmospheric pressure, and blow vent is provided with the madial wall of follower 11.1
K6。
To realize promotion of the sliding block 11.5 to active friction plate 11.4 and driven friction disk 11.2, one end connection is additionally provided with
Sliding block 11.5, the direction of the other end towards active friction plate 11.4 and driven friction disk 11.2 passes sliding cavity Q3 and just active is being rubbed
The push rod 11.7 of pad 11.4 and driven friction disk 11.2.Preferably, the end of push rod 11.7 is also associated with end block 11.8, is used for
Directly contact active friction plate 11.4 or driven friction disk 11.2.Push rod 11.7, end block 11.8 can be connected by screw in sliding block
11.5。
For convenience of the installation of sliding block 11.5, follower 11.1 is arranged to isolating construction, and a part has groove, another part
It is detachably connected and cover the groove.
Fig. 9 is the structural representation of the swivel joint 12 in the utility model embodiment.Fig. 9 is referred to, this practicality is new
Swivel joint 12 in type embodiment includes relatively rotating the shell 12.2 and connecting shaft 12.1 of connection.Shell 12.2 includes one
Compressing member 12.5 is additionally provided with the accommodating chamber Q2 of end opening, accommodating chamber Q2, one end elasticity of compressing member 12.5 is resisted against accommodating chamber Q2
Bottom, the other end sealing be pressed in the corresponding one end end face of connecting shaft 12.1.The outer peripheral face of one end of connecting shaft 12.1 passes through
Bearing 3 is rotatably assorted in accommodating chamber Q2 side face.
Connecting shaft 12.1 is fixed on the connection end D2 of power output shaft 24, and shell 12.2 is provided with hydraulic oil port 12.3.It please match somebody with somebody
Close referring to Fig. 7, connecting shaft 12.1 is provided with first passage K1, what power output shaft 24 was provided with connection first passage K1 second leads to
Road K2.First passage K1 connect hydraulic oil port 12.3, second channel K2 connection hydraulic clutch 11 be used for hydraulic coupling is provided
Hydraulic chamber Q1.First passage K1 connects composition hydraulic channel K0 with second channel K2.Therefore hydraulic channel K0 connects hydraulic oil
12.3 and hydraulic chamber Q1 of mouth.
In use, into hydraulic chamber Q1 hydraulic oil can be passed through from hydraulic oil port 12.3 by hydraulic channel K0, to provide
Hydraulic coupling for driving the transmission engagement of hydraulic clutch 11.And it is defeated even in power due to the presence of swivel joint 12
When shaft 24 is rotated, hydraulic channel K0 still can realize sealing and connect hydraulic chamber Q1, to realize to hydraulic clutch 11
The control of clutch.Shell 12.2 is additionally provided with passage 12.4, for excluding the gas inside shell 12.2.
For convenience of connecting, the internal thread being connected with external pipeline is provided at hydraulic oil port 12.3.
In addition, wouldn't be in use, can be set up defences in the clutch end D1 overcoats of power output shaft 24 in preposition transmission case 100
Shield 25, to protect clutch end D1.
Embodiment two
Figure 10 is the structural representation of the operation tractor 001 in the utility model embodiment two.Refer to Figure 10, this reality
The operation tractor 001 applied in example one includes the preposition transmission case 100 described in Working mechanism J1 and embodiment one, and operation is dragged
The power input shaft 6 of the preposition transmission case 100 of engine R3 drive connections of machine drawing 001, and 6 turns of power input shaft can be driven
It is dynamic.The clutch end D1 drive connection Working mechanism J1 of power output shaft 24 simultaneously drive Working mechanism J1 to operate.
Operation tractor 001 in the present embodiment is is additionally arranged operation on the basis of the tractor 010 in embodiment one
Mechanism J1, with the work machine for the operation for realizing the front end of tractor 010.
Preferably, the vehicle frame R1 of operation tractor 001 front end is additionally provided with preposition frame R2, and preposition frame R2 is located at engine
In front of R3.Preposition transmission case 100 is fixed on preposition frame R2, and the engine R3 of operation tractor 001 is passed by universal drive shaft R4
Dynamic connection power input shaft 6.
On the one hand preposition frame R2 can be used for installing preposition transmission case 100, on the other hand available for installing and support working rig
Structure J1.In use, Working mechanism J1 base is fixedly attached to above preposition frame R2, then passed by drive mechanism by preposition
The drive connection Working mechanism of power output shaft 24 J1 of dynamic case 100 input, realizes driving Working mechanism J1 operating.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of preposition transmission case, it is characterised in that including：
Transmission case body；
Power input shaft, is rotatably assorted in the transmission case body；
Power output shaft, is rotatably assorted in the transmission case body spaced reciprocally with the power input shaft, and with relative
Clutch end and connection end；
Hydraulic clutch, including be arranged in the power output shaft and the importation and output section of mutual clutch can be realized
Point；The importation is connected in the power input shaft；The output par, c is connected in the power output shaft
And the pressing importation can be driven in the presence of hydraulic coupling realizes transmission engagement, or disengage after hydraulic coupling is lost institute
State importation and realize transmission separation.
2. preposition transmission case according to claim 1, it is characterised in that also include：
Swivel joint, the swivel joint includes relatively rotating the shell and connecting shaft of connection；The connecting shaft is fixed on
The connection end of the power output shaft, the shell is provided with hydraulic oil port；
Hydraulic channel, including be arranged at the first passage of the connecting shaft and be arranged at the power output shaft and connect described
The second channel of one passage；
The first passage connects the hydraulic oil port, and the second channel connects the described for providing of the hydraulic clutch
The hydraulic chamber of hydraulic coupling.
3. preposition transmission case according to claim 2, it is characterised in that：
The shell includes being additionally provided with compressing member in the accommodating chamber of one end open, the accommodating chamber, compressing member one end elasticity
It is resisted against the bottom of the accommodating chamber, other end sealing is pressed in the corresponding one end end face of the connecting shaft；
The outer peripheral face of one end of the connecting shaft is rotatably assorted in the side face of the accommodating chamber by bearing.
4. preposition transmission case according to claim 2, it is characterised in that：
The inner peripheral surface of the output par, c is provided with annular groove, and the both sides of the annular groove, which are respectively equipped with, is sealed in the output par, c
Inner peripheral surface and the power output shaft outer peripheral face between sealing ring；
Axis of the second channel including the end face from the connection end of the power output shaft along the power output shaft extends
Blind hole, and along the radial passage for radially extending and connecting the annular groove and the blind hole of the power output shaft.
5. preposition transmission case according to claim 4, it is characterised in that：
The importation includes driving disc spacing pressing and the multiple spaced active friction plates being arranged in driving disc spacing pressing；The active
Friction plate is set along the driving disc spacing pressing is axially slidable, and the driving disc spacing pressing and the active friction plate are matched somebody with somebody in circumferentially transmission
Close；
The output par, c includes the follower that circumferential transmission is matched with the power output shaft, and the periphery of the follower is arranged
There are some driven friction disks, the driven friction disk is set along the follower is axially slidable, and the follower and institute
Driven friction disk is stated in circumferentially transmission to coordinate；
Each described active friction plate and each driven friction disk cross arrangement successively；
The output par, c is provided with the sliding cavity of the active friction plate and the driven friction disk, the sliding cavity sliding
It is dynamic to be combined with the liquid surrounded on the inside of sliding block, the sliding block and the sliding cavity for accommodating hydraulic oil and providing the hydraulic coupling
Press chamber；The hydraulic chamber connects the annular groove；
The hydraulic coupling for inputting the hydraulic chamber from the hydraulic channel can promote the sliding block to slide to promote the active
Friction plate and the driven friction disk compress realize couple drive vertically, and from the hydraulic chamber, unloading hydraulic coupling can make institute
Sliding block is stated to unclamp to disconnect the couple drive of the active friction plate and the driven friction disk.
6. preposition transmission case according to claim 5, it is characterised in that：
The follower also includes return spring；
The sliding block is supported in the bottom of the return spring to the sliding cavity, the sliding block is intended to the sliding cavity
Basal sliding is to unclamp the pressing between the active friction plate and the driven friction disk.
7. preposition transmission case according to claim 1, it is characterised in that also include：
Jackshaft, setting is relatively fixed with the transmission case body；
Duplicate gear, is rotatably connected at the jackshaft；
The importation that the power input shaft passes through the duplicate gear drive connection hydraulic clutch.
8. preposition transmission case according to claim 7, it is characterised in that：
The duplicate gear includes larger the first sub- gear and less second sub- gear；It is fixed on the power input shaft
The driving gear engagement connection first sub- gear, is rotatably assorted described in being connected in the driven gear engagement of the power output shaft
Second sub- gear；
The driven gear is connected the importation of the hydraulic clutch.
9. a kind of tractor, it is characterised in that：
The tractor includes the preposition transmission case as described in claim any one of 1-8, the driving engine of the tractor
The power input shaft of the preposition transmission case is connected, and the power input shaft can be driven to rotate；
The clutch end of the power output shaft is used for connection operation mechanism and drives the Working mechanism to operate.
10. a kind of operation tractor, it is characterised in that：
The operation tractor includes Working mechanism and the preposition transmission case as described in claim any one of 1-8, the operation
The driving engine of tractor connects the power input shaft of the preposition transmission case, and the power input shaft can be driven to turn
It is dynamic；
The clutch end drive connection Working mechanism of the power output shaft simultaneously drives the Working mechanism to operate；
The front end of the vehicle frame of the operation tractor is additionally provided with preposition frame, and the preposition frame is located at the engine front；
The preposition transmission case is fixed on the preposition frame, and the engine of the operation tractor is driven by universal drive shaft to be connected
Connect the power input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221846.7U CN206555374U (en) | 2017-03-08 | 2017-03-08 | Preposition transmission case, tractor and operation tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221846.7U CN206555374U (en) | 2017-03-08 | 2017-03-08 | Preposition transmission case, tractor and operation tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555374U true CN206555374U (en) | 2017-10-13 |
Family
ID=60362772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720221846.7U Active CN206555374U (en) | 2017-03-08 | 2017-03-08 | Preposition transmission case, tractor and operation tractor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678291A (en) * | 2017-03-08 | 2017-05-17 | 四川川龙拖拉机制造有限公司 | Front transmission box, tractor and operation tractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678291A (en) * | 2017-03-08 | 2017-05-17 | 四川川龙拖拉机制造有限公司 | Front transmission box, tractor and operation tractor |
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