CN204681916U

CN204681916U - The transmission device of combine

Info

Publication number: CN204681916U
Application number: CN201520016643.5U
Authority: CN
Inventors: 姜永善; 金寿经; 全昌焕; 李官好
Original assignee: Produce Enterprise Of Toyo Co Ltd
Current assignee: Produce Enterprise Of Toyo Co Ltd
Priority date: 2014-09-01
Filing date: 2015-01-09
Publication date: 2015-10-07
Anticipated expiration: 2025-01-09
Also published as: KR101669333B1; KR20160027568A

Abstract

The utility model discloses a kind of transmission device of combine, comprise and extract device, for the running gear that makes the sheller unit by extracting the paddy stalk threshing that device extracts and walk by the driving force of engine for what extract crop.Also comprise: main drive shaft (112), one end receives the driving force of the output shaft (102A) of engine by band mechanism (112B); Threshing power shaft (142A), one end receives power by band mechanism (142B) from the other end of main drive shaft (112); And extracting power shaft (120A), one end is by receiving power with the band mechanism (120B) being with mechanism (142B) to be together connected in parallel in threshing power shaft.Wherein, bevel gear mechanism (145) next threshing axle (146) transmitting rotary power to sheller unit of the other end by being located at the inside of gear-box (144) of threshing power shaft (142A).

Description

The transmission device of combine

Technical field

The utility model relates to the transmission device of full-feeding combine harvester, relates in more detail and effectively to each several part transferring power of output needing engine, and can regulate the transmission device of the combine of the revolution of each several part according to threshing object.

Background technology

Usually, combine can be divided into full feed type and half-feed combine harvester.Wherein, full-feeding combine harvester is called as ordinary combine harvester, and the inside exactly to sheller unit provides the whole paddy stalks extracted, with what can be consisted of the mode of the threshing process acquisition grain in sheller unit inside.Further, half-feed combine harvester refers to, the inside to sheller unit only supplies a part for the paddy stalk extracted, realizes the combine of the form of threshing thus.

First, based on Fig. 1 to Fig. 3, full-feeding combine harvester in the past disclosed in No. 2010-239980th, Japanese Unexamined Patent Publication is described.As shown in the figure, common full-feeding combine harvester is walked by a pair cterpillar drive 1 of the bottom being arranged at body frame 4, and execution extracts object, isolates the threshing course of grain from the paddy stalk extracted.And this combine has extracting device 10 and extracting device 10 by described, the sheller unit 5 of threshing from the paddy stalk extracted of the front being positioned at direction of travel.

Extracted the paddy stalk that device 10 extracts supplied to sheller unit 5 by feeder 11 by described.And described in extract device 10 with can by being arranged at the hydraulic cylinder of the bottom of feeder 11, centered by a bit, the mode along above-below direction movement is formed, and duty is depended in this position moved up and down extracting device 10.And, described in extract device 10 by separating constant interval and the pair of right and left nearside divider 15 that arranges in front, be separated the crop that will extract and the crop that can not extract.

In described a pair nearside divider 15, the crop of side inflow is while be pulled to rear by the rake dialing-grain unit 17 rotated, and is extracted by extracting sword 16.The paddy stalk extracted like this is transferred to the front side of feeder 11 by extracting auger 18, and is supplied to the sheller unit 5 at the rear being positioned at described feeder conveyer 11a by the feeder conveyer 11a of the inside being arranged at described feeder 11.Further, owing to being provided with cylindric threshing barrel 5a (with reference to Fig. 3) in the inside of described sheller unit 5, thus performing the rotation by threshing barrel 5a, in the paddy stalk of supply, isolate the threshing course of grain.

The grain be separated in this sheller unit 5 is transferred to cereal tank 6 by not shown conveying worm.Further, arrange at described cereal tank 6 be used for externally taking out of the cereal that stores like this take out of mechanism, because this part is the part had nothing to do with the application, therefore omit detailed description thereof.The walking of combine as above, to extract and threshing realizes by handling the manipulation device being arranged at the various levers of driver's seat 2 periphery etc.

Further, known with reference to Fig. 3, combine has the engine 20 as power source, this engine 20, such as, is usually arranged at the bottom of driver's seat 2.The output shaft 20a of described engine 20 is passed to the power shaft 22a of walking speed change gear 22 by band mechanism 21, the power of the output shaft 22b of walking speed change gear 22 inputs to walking speed changer 23.Further, be passed to a pair running gear 1 of left and right by described speed changer 23, combine can be walked.This walking speed change gear 22 is made up of hydrostatic stepless speed change device usually.Further, in this manual, so-called band mechanism be used as comprising as transmission of power key element band and be wound with this band and use the concept of the pulley of the revolving force being with transmitter shaft.

Walking class transmission of power can be called by from described engine 20 to the transmission of power of walking speed change gear 22.Afterwards, the operation class transmission of power extracting device 10 and sheller unit 5 etc. in described engine 20 is observed.Power in described engine 20 is passed to one end of the blower drive shaft 26 of sheller unit 5 by band mechanism 25.Further, the other end of blower drive shaft 26 is connected with the driving shaft of the second conveying worm 29 with the first conveying worm 28 of sheller unit 5 by band mechanism 27.Wherein, the first conveying worm 28 is for being transferred to cereal tank 6, second conveying worm 29 for again supplying the hay and grain that mix in the threshing course of sheller unit 5 to sheller unit 5 by the grain of the threshing course through sheller unit 5.

Further, by band mechanism 31, the power being arranged at described band mechanism 27 is taken out the sorting unit driving shaft 32 that axle 30 is passed to sheller unit 5.Wherein, the sorting unit of sheller unit 5 means the grain and hay that receive by sheller unit 5 threshing, and by rectilinear motion and the rotary motion of an end device of sorting grain, now, utilize the motion of sorting unit as above and only sub-elect grain at the wind that fan blower occurs.The fan blower that this sorting wind occurs drives by described blower drive shaft 26.

Arrange another band mechanism 35 at described blower drive shaft 26, this band mechanism 35 is for extracting device 10 transferring power.Described band mechanism 35 transmits the power in blower drive shaft 26 to transmission of power shell power shaft 37.Described shell power shaft 37 in the inside of transmission of power shell 36, by bevel gear 43a, 43c to threshing axle 38 transferring power.Further, described threshing axle 38 can rotate by making threshing barrel 5a the threshing performed paddy stalk.And, the driving force of described shell power shaft 37 by rotate forward clutch 40 or by transmission of power shell 36 extract output shaft 39 and reversing clutch 41 be passed to extract device 10 extract power shaft 42.

Wherein, described transmission of power shell 36 has the bevel gear mechanism 43 be made up of three bevel gears 43a, 43b, 43c.Described bevel gear mechanism 43 by be arranged at described shell power shaft 37 end bevel gear 43a, be arranged at the medial end extracting output shaft 39, and along the bevel gear 43b of the direction transferring power contrary with described bevel gear 43a and form for the bevel gear 43c of the centre of the transferring power that is meshed with described bevel gear 43a and bevel gear 43b respectively.It can thus be appreciated that described bevel gear mechanism 43, by while the horizontal shell power shaft 37 of (with the direction that direction of travel is perpendicular) and the threshing axle 38 phase interlock of direction of travel, makes shell power shaft 37 and extracts output shaft 39 phase interlock.

Described rotating forward clutch 40 is made up of belt tension clutch, to be wound in shell power shaft 37 and to extract between output shaft 42 that locking band mechanism 40a switches to tense situation and relaxed state according to the draw ring body 40c by tensioning members 40b, be converted to power delivery status and power off state.This rotating forward clutch 40 can be power delivery status and power off state based on manipulation, by extracting power shaft 42, transmits the driving force of shell power shaft 37 along forward direction.

And, reversing clutch 41 is made up of belt tension clutch, to extract output shaft 39 and the band mechanism 41a extracted between power shaft 42 can switch to tense situation and relaxed state according to the draw ring body 41c by tensioning members 41b, switch to power delivery status and dissengaged positions.This reversing clutch 41 can be power delivery status and dissengaged positions based on manipulation, by extracting power shaft 42, extracts the power of output shaft 39 along reverse direction transmission.

Further, the conveyer driving shaft that power shaft 42 is also used as to drive feeder conveyer 11a is extracted described in.This power shaft 42 that extracts is by chain 44 and the driving shaft 45 phase interlock extracting sword 16.This driving shaft 45 utilizes chain 47,49 and band 50 to carry out interlock and extracts the driving shaft 46 of auger 18 and the driving shaft 48 of rake dialing-grain unit 17.

If the driving force of forward direction is passed to extract power shaft 42, then extract device 10 with feeder conveyer 11a, extract auger 18, extract the mode that sword 16 and rake dialing-grain unit 17 can perform common work for the treatment of or foldback work and drive along forward direction.Further, if the transmission of power of reverse direction is to extracting power shaft 42, then extracts the feeder conveyer 11a of device 10, extract auger 18, extract sword 16 and rake dialing-grain unit 17 rotates with the direction contrary with common work direction of rotation.

Based on the power transmission structure as above of conventional art, point out following shortcoming.Such as, the transmission of power in engine 20 is to blower shaft 26, and described power is dispensed to by described blower shaft 26 and extracts device 10 and sheller unit 5 etc.But the whole driving shafts extracted in device 10 and sheller unit 5 comprising blower shaft 26 have in fact fixing revolution.Therefore, by band mechanism from needing the blower shaft 26 with required revolution to extracting device 10 and sheller unit 5 transferring power, in order to regulate the driving shaft extracting device 10 and sheller unit 5 with fixing revolution, the size etc. of the pulley being used in each driving shaft individually should be designed.In actual design, consider this point, there is the change according to specification, the shortcoming of all parts should be redesigned.Further, in fact according to technology in the past, this point means that the compatibility of the parts forming transmission device is not enough, therefore, there is the change according to specification and designs the shortcoming complicated.

Further, according to combine in the past as above, exist and be difficult to the shortcoming being applicable to various crop.Full-feeding combine harvester can gather in the crops various crop, such as, barley and Soybean and Other Crops, and according to object crop, the driving shaft of each several part needs different revolutions.Such as, when gathering in the crops soybean, when compared with the situation of results barley, wheat or rape etc., the driving shaft for extracting can have identical revolution, but should have different revolutions for the driving shaft of threshing.But, according to combine in the past as above, exist and be difficult to the shortcoming adjusting revolution as above.

According to conventional art, after the output to blower shaft delivery engine, the mode of distributing to each several part at blower shaft is formed, and in fact, is difficult to the revolution adjusting blower shaft.In the actual act of combine, size according to the sorting wind supplied from fan blower takes sorting grain in separator plate, and this exists suitable difference on effect, especially, according to walking and the handling situations of combine, be difficult to avoid according to the loss of the grain of the size of sorting wind.But, in conventional art as above, there is the shortcoming being difficult to the revolution regulating this blower shaft.

Utility model content

The utility model, for solving problem as above, its object is to, and provides and is easy to from causing to each several part distributed power, and is easy to the combine regulating revolution.

An object more of the present utility model is, provides and according to the kind of the object crop that will gather in the crops, can be easy to the combine of the revolution regulating each several part, be especially, can be easy to the revolution regulating threshing barrel.

Further, another object of the present utility model is, provides the revolution being easy to regulate fan blower, thus can be easier to regulate the combine for the sorting peak of sorting.

Of the present utility model also have an object to be, formed in the mode realizing the distribution of more effective power that extracts in device that can drive at the power based on engine.

Another object of the present utility model is, effectively can perform the follow-up management forming and extract the repairing of the structure member of device and replacement etc.

Another object of the present utility model is, provides and is easy to from engine to each several part distributed power and is convenient to control revolution, effectively to perform the transmission device to the transmission of power extracting device.

In order to solve problem as above, the utility model comprises extracting device for what extract crop, for the sheller unit that makes to extract the paddy stalk threshing that device extracts by described and the transmission device of the combine of running gear of walking by the driving force of engine, the transmission device of described combine comprises: main drive shaft, one end of described main drive shaft is by being with the driving force of the output shaft of authorities engine, threshing power shaft, one end of described threshing power shaft receives power by band mechanism from the other end of described main drive shaft, and extract power shaft, the described end extracting power shaft by with the described band authorities power being with mechanism to be together connected in parallel in described threshing power shaft.The bevel gear mechanism next threshing axle transmitting rotary power to sheller unit of the other end by being located at the inside of gear-box of described threshing power shaft.

According to embodiment of the present utility model, described second band mechanism comprises the driving shaft pulley being installed on described main drive shaft, the threshing axle pulley being installed on described threshing power shaft and winding and is engaging in the band of described driving shaft pulley and threshing axle pulley.And, described driving shaft pulley or threshing axle pulley are made up of shaft sleeve part and sheave portion respectively, described shaft sleeve part is pressed into the end in main drive shaft or threshing power shaft, described sheave portion can install and remove sheave portion in described shaft sleeve part by multiple bolt, by being separated the sheave portion of driving shaft pulley or threshing axle pulley from shaft sleeve part and combining with the sheave portion of other specifications, the revolution of threshing power shaft can be changed thus.

According to embodiment of the present utility model, the utility model also comprises compensating unit, and described compensating unit is used for changing with the revolution of described threshing power shaft the revolution changing accordingly again and extract power shaft.

Wherein, according to the embodiment for compensating unit, form extracting power shaft pulley and by be wound around and the sheave portion of locking band and the shaft sleeve part be pressed in extracting power shaft are formed, described sheave portion can being replaced of described 3rd band mechanism.

According to embodiment of the present utility model, described compensating unit is made up of revolution adjustment pulley, and described revolution adjustment pulley can be installed and removed in forming the described outside extracting power shaft pulley of being with mechanism by bolt.

Also comprise with the band mechanism being with the mode of mechanism's parallel connection to be connected with main drive shaft with described and be with mechanism, by described band mechanism, blower shaft being driven, by band, mechanism makes swing shelf drive shaft.

Further, according to an embodiment more of the present utility model, also comprise and the described walking Lei Dai mechanism being with mechanism to be together connected in parallel with the output shaft of engine, by described band mechanism to stepless speed change device and running gear transferring power.

In the utility model, the blower shaft pulley being installed on blower shaft is made up of infinitely variable speeds pulley, can more be convenient to thus perform the control to the revolution of fan blower.

According to another embodiment of the present utility model, also comprise: extract sword power shaft, receive power from the described power shaft that extracts, and extract sword by transmission mechanism driving, described transmission mechanism comprises the switching mechanism being arranged at end; First asessory shaft, is connected with auger driving shaft (124A) by link chain mechanism, and described auger driving shaft is connected with the auger that extracts extracting device; Dialing-grain unit driving shaft, drives rake dialing-grain unit for receiving power from described auger driving shaft; And link chain mechanism, described in the described driving force extracting power shaft being together passed to, extract sword driving shaft and the first asessory shaft.

In embodiment as above, described link chain mechanism (120C) by be arranged at extract power shaft sprocket wheel (120s), be arranged at described in extract the sprocket wheel (126s) of sword driving shaft, the sprocket wheel (126As) being arranged at described first asessory shaft (126Aa) and a chain simultaneously hanging over described three sprocket wheels is formed.

Also have an embodiment according to of the present utility model, also comprise: the second asessory shaft, by band, mechanism receives power from described auger driving shaft, and band mechanism, for connecting described second asessory shaft and described dialing-grain unit driving shaft; The pulley being arranged at described dialing-grain unit driving shaft is made up of secondary pulley.

According to the utility model with structure as above, divide from the output shaft of engine and be used in walking and the power of operation, and to main drive shaft draw for extract and sheller unit operation class power after, distribute to each device.Therefore, without the need to conventional art by having the blower shaft of required revolution, utilize independent main drive shaft, thus, that design attitude by main drive shaft and power distribute, and are convenient to distributed power, extract and revolution that sheller unit etc. is required to have.The convenience that power as above distributes suitably can design according to the setting position of main drive shaft and revolution etc. to be reached.

Further, according to the utility model, when gathering in the crops the crop of xenogenesis, the revolution that each crop is applicable to can be provided.Such as, compared with the situation of results barley, when gathering in the crops soybean, can be used in the revolution changing sheller unit, the driving shaft as extracted device can be compensated for as original revolution etc., is more easy to regulate revolution according to the object crop that will gather in the crops.Therefore, it is possible to provide the combine effectively can gathering in the crops various crop.

And, according to the utility model, can expect to act as following advantage, the revolution of fan blower can be adjusted to optimum state, as mentioned above, the revolution that suitably can control fan blower is controlled being used for sub-electing as best by the sorting wind of the grain of sheller unit threshing in fact, thus threshing efficiency can be made to maximize.

Further, according to the utility model, following advantage can be expected, can know and can adopt from extracting power shaft to extracting the parallel connection type transferring structure of sword power shaft and the first asessory shaft transferring power simultaneously as the power transmission structure making to extract device and drive.Therefore, compared with the structure in the past with tandem type power transmission structure, the power loss in power transmission process can be minimized, and can together realize evenly power distribute.Further, adopt parallel connection type power transmission structure as above, thus carry out more easily maintaining the management afterwards of each several part and guarantee.

Because the transmission of leading to the power extracting device is as above transmitted from the main drive shaft of engine transferring power through the threshing power shaft of sheller unit in fact, therefore, finally can expect effectively to perform overall transmission of power, and then more successfully can carry out power distribution and revolution adjustment.

Further, according to the utility model, can expect following effect, form by secondary pulley the pulley receiving the dialing-grain unit driving shaft of power from the most downstream side extracted device, thus, ease of assembly and follow-up management extract the power transmission structure of device in fact.

Accompanying drawing explanation

Fig. 1 is the unitary side view of the combine according to conventional art.

Fig. 2 is the overall vertical view of the combine according to conventional art.

Fig. 3 is the integral power transmission system figure of the combine according to conventional art.

Fig. 4 be illustrate according in the combine of conventional art for making to extract the illustration figure that power shaft carries out rotating forward, reversing.

Fig. 5 is the illustration stereogram of the outward appearance illustrated according to combine of the present utility model.

Fig. 6 is the power transmission structure figure of the power transmission structure illustrated according to combine of the present utility model.

Fig. 7 is the illustration figure of the structure of the main driving axis illustrating threshing of the present utility model and extract device.

Fig. 8 is the structure chart of the important part that power transmission structure of the present utility model is shown.

Fig. 9 is the decomposing state stereogram illustrating interchangeable pulley of the present utility model.

Figure 10 is the section illustration figure illustrating interchangeable pulley of the present utility model.

Figure 11 is the structure of main driving axis illustrating threshing of the present utility model and extract device, is to replace the illustration figure of the state of each pulley to change threshing and extract the revolution of device.

Figure 12 illustrates the enlarged drawing extracting the power transmission structure of device of the present utility model.

Figure 13 is the section illustration figure of the exemplary architecture that switching mechanism of the present utility model is shown.

Figure 14 is the illustration figure extracting the work of sword that switching mechanism of the present utility model and link rod are shown.

The explanation of Reference numeral:

100: framework

102: engine

110: running gear

112: main drive shaft

120: extract device

120A: extract power shaft

122: rake dialing-grain unit

122A: dialing-grain unit driving shaft

124: extract auger

124A: auger driving shaft

126: extract sword

126A: extract sword driving shaft

128: extract framework

130: feeder

140: sheller unit

142: threshing barrel

142A: threshing power shaft

150: fan blower

160: cereal tank

169: swing shelf

Embodiment

Below, based on embodiment shown in the drawings, the utility model is described in detail.Fig. 5 is for illustrating the stereogram of the surface structure according to full-feeding combine harvester of the present utility model (hereinafter referred to as combine), and Fig. 6 is the key diagram of the power transmission structure illustrated according to combine of the present utility model.First, based on Fig. 5 and Fig. 6, the power transmission structure of the entirety of combine of the present utility model is observed.

As shown in the figure, combine of the present utility model has and extracts device 120, sheller unit 140 and cereal tank 160, the described device 120 that extracts is for extracting crop from milpa, described sheller unit 140 is for making in the described paddy stalk threshing extracting device 120 and extract, and described cereal tank 160 is for storing the grain by sheller unit 140 threshing.And a pair cterpillar drive 110 of walking based on the driving force in engine is supported by framework 100.Each device itself as above is in fact substantially identical with device in the past, thus detailed.Further, with reference to the power transmission structure shown in Fig. 6, the explanation about transmission of power is carried out to the part relevant to each device.

Known with reference to Fig. 6, the power occurred at the engine 102 supported by framework 100 is supplied to walking class and operation class by output shaft 102A.To the transmission of the power of walking class from output shaft 102A by band mechanism 102B, and be passed to walking speed change gear 106 via stepless speed change device 104.And, to the transmission of power of operation class from output shaft 102A after the first band mechanism 112B is passed to main drive shaft 112, be passed to from described main drive shaft 112 and extract device 120 and sheller unit 140 etc.

In the present embodiment, the power in described engine 102 is dispensed to through main drive shaft 112 and extracts device 120 and sheller unit 140.Like this, be arranged at suitable position by by main drive shaft 112, can not only easily to the transmission of various piece distributed power as described below, the revolution that can also be content with very little needed for various piece.Further, in the illustrated embodiment in which, consider the size of power transmitted, by described band mechanism 112B with a pair band and a pair band winding and the form of a pair locking pulley formed.

First, observe the power transmission structure leading to sheller unit 140, the power in described engine 102 is passed to an end of main drive shaft 112 by band mechanism 112B.Further, the second band mechanism 142B is provided with in the other end of described main drive shaft 112.Wherein, described second band mechanism 142B is for rotating at sheller unit 140, while to threshing barrel 142 transferring power performing in fact threshing.Therefore, the power in main drive shaft 112 is passed to threshing power shaft 142A by described band mechanism 142B.Described threshing power shaft 142A is by the bevel gear mechanism 145 of the inside of gear-box 144, and transmission of power direction makes the threshing axle 146 at the center being arranged at threshing barrel 142 rotate after changing generation 90 degree.

Afterwards, observe and lead to from described threshing power shaft 142A the transmission of power extracting device 120.Described threshing power shaft 142A by band mechanism 120B with extract power shaft 120A and be connected.The described power shaft 120A that extracts is arranged to connect and extracts the inside of the feeder 130 of device 120 and sheller unit 140, described in extract the conveyer of paddy stalk of power shaft 120A for driving the inside being arranged at described feeder 130 to transfer to extract.Therefore, if described in extract power shaft 120A and work, then the paddy stalk extracted is transferred to the inside of sheller unit 140 from extracting device 120.

Further, described in extract power shaft 120A by being arranged at the link chain mechanism 120C of the other end, and extract sword driving shaft 126A and be connected to fetch and realize transmission of power.Described extract sword driving shaft 126A for drive cut off crop bottom extract sword 126, below, describe and lead to from the described sword driving shaft 126A that extracts the transmission mechanism 200 extracting sword 126.Wherein, so-called link chain mechanism 120C use be comprise for transferring power chain and be arranged at driving shaft and driven shaft respectively, and the meaning of the sprocket wheel combined with chain, this is equal to the concept of mechanism of being with mentioned above.

As shown in figure 12, power shaft 120A is extracted by a link chain mechanism 120C, simultaneously to extracting sword driving shaft 126A and the first asessory shaft 126Aa transferring power described in.That is, the chain C1 forming link chain mechanism 120C refer to hang over simultaneously be arranged at described in extract power shaft 120A, extract sprocket wheel 120s, 126As, 126s of sword driving shaft 126A and the first asessory shaft 126Aa.

According to power transmission structure as above, the described driving force extracted in power shaft 120A is passed in the lump and extracts sword driving shaft 126A and the first asessory shaft 126Aa, this can regard as have in fact with the identical meaning of parallel way transferring power.That is, known from extracting power shaft 120A simultaneously to extracting sword driving shaft 126A and the first asessory shaft 126Aa distributed power, this structure is different from the structure in the past of transferring power in a series arrangement.As reference, structure in the past from extracting power shaft to extracting sword driving shaft transferring power, and utilizes independent link chain mechanism to deliver power from extracting sword driving axial auger driving shaft by independent link chain mechanism.

And, according to power transmission structure of the present utility model as above, known link chain mechanism 120C is made up of sprocket wheel 120s, sprocket wheel 126s, sprocket wheel 126As and the chain C1 (structural element of link chain mechanism 120C) that hangs over this three sprocket wheels 120s, 126s, 126As simultaneously in fact.Therefore, it is possible to realize distributing from extracting power shaft 120A to the effective power extracting sword power shaft 126A, auger driving shaft 124A and dialing-grain unit driving shaft 122A.

And, according to power distribution structure in the past, owing to being the power distribution of series system, thus, if at some component malfunction, then need to decompose overall structure place under repair wait management in also there is inconvenient shortcoming, but in the utility model, owing to being in fact that the power of parallel way distributes, thus can also expect only to repair the managerial convenience of the part of raw fault etc.And consider main drive shaft 112 transferring power rotated from the driving force by engine 102, the known power transmission structure extracting device 120 as above can realize power stable on the whole and distribute.

Afterwards, the part relevant to rake dialing-grain unit 122 extracted in the power transmission structure of device 120 is observed.As mentioned above, the dialing-grain unit driving shaft 122A making rake dialing-grain unit 122 rotate receives power by band mechanism 122Ab from the second asessory shaft 124Aa.As shown in (a) part of Figure 12, described band mechanism 122Ab by be arranged at dialing-grain unit driving shaft 122A pulley 122Am, be arranged at the second asessory shaft 124Aa pulley 122An and hang over described band between pulley 122Am, 122An and form.

According to preferred embodiment of the present utility model, form by secondary pulley the pulley 122Am being arranged at described dialing-grain unit driving shaft 122A.That is, described pulley 122Am can regulate the secondary pulley of two of revolution sheave portion to form by being provided with diameter difference.The structure of pulley 122Am as above is in fact for regulating the revolution of rake dialing-grain unit 122.Observe the power transmission structure extracting device 120 of the present utility model, known described dialing-grain unit driving shaft 122A is arranged in fact the most downstream of transmission of power.

That is, described dialing-grain unit driving shaft 122A can be regarded as after without the need to there is the structure of transferring power.Form the pulley 122Am being arranged at dialing-grain unit driving shaft 122A as above by secondary pulley, thus the advantage being convenient to assembling and follow-up management can be expected.Described rake dialing-grain unit 122 should change revolution according to target crop, and in order to change this revolution, in technology in the past, changes rotating speed by the structure before transmission of power to described dialing-grain unit driving shaft 122A.

But, according to structure in the past as above, need to be suitable for secondary pulley at the mid portion of power transmission structure, be so not only not easy to assembling, and also can be very inconvenient when repairing and replacement etc.In the utility model, form the pulley 122Am being arranged at the dialing-grain unit driving shaft 122A driving rake dialing-grain unit 122 by secondary pulley, thus be easy to change rotating speed, and also can expect advantage as above in follow-up management.

Further, extracting sword driving shaft 126A need to for driving the auger driving shaft 124A transferring power extracting auger 124, described in extract the paddy stalk of auger 124 for cutting off to the accumulated inside of described feeder 130.The described auger 124 that extracts can be equivalent to perform in the inside extracting framework 128 for a pair of separation constant interval the process pulled by rake dialing-grain unit 122, and is extracted the function of the paddy stalk that sword 126 cuts off to the intake section gathering of feeder 130.

As mentioned above, in the illustrated embodiment, extract sword driving shaft 126A and the first asessory shaft 126Aa and receive power by a link chain mechanism 120C from extracting power shaft 120A, then, described first asessory shaft 126Aa passes through link chain mechanism 124Ac to auger driving shaft 124A transferring power.Except this embodiment, extract the transmission of power that sword driving shaft 126A leads to auger driving shaft 124A can carry out other embodiments from described.

The power of described auger driving shaft 124A should be passed to dialing-grain unit driving shaft 122A, and in the illustrated embodiment, the power leading to auger driving shaft 124A is passed to the second asessory shaft 124Aa by link chain mechanism 124Ad, then, by being with mechanism 122Ab from the second asessory shaft 124Aa to dialing-grain unit driving shaft 122A transferring power.The driving extracting device 120 with transmission mechanism as above is observed with reference to Fig. 6.

By transmission mechanism as above, the driving force in engine 102 makes to extract power shaft 120A respectively, extract sword driving shaft 126A, auger driving shaft 124A and dialing-grain unit driving shaft 122A rotates.According to the walking of combine, the crop entering the inner side of the nearside divider 129 being arranged at the front end extracting framework 128 is pulled by rake dialing-grain unit 122, and is extracted sword 126 and cut off.The paddy stalk cut off like this is transferred to the entrance of feeder 130 by extracting auger 124, and enters sheller unit 140 by the conveyer of the inside being arranged at feeder 130.

Afterwards, the transmission of power of leading to other parts from described main drive shaft 112 is observed.Described main drive shaft 112 is by being with mechanism 154 to blower shaft 152 transferring power.The fan blower 150 being arranged at described blower shaft 152, by threshing barrel 142, provides sorting wind to the swing shelf 169 for sub-electing the hay be blended in the grain of threshing.

Known, the band mechanism 154 to described blower shaft 152 transferring power is together arranged in parallel in main drive shaft 112 with the described mechanism 142B that is with in fact.That is, supplying power by being divided into parallel connection at main drive shaft 112, the burden based on the load be connected in series can be reduced to greatest extent, while consider that suitable power distributes.

Described band mechanism 154 comprises the blower shaft pulley 153 be connected with blower shaft 152, and in fact, the rotating speed of described blower shaft pulley 153 determines the intensity of the wind occurred at fan blower 150.The Grain seed sorting device affected in fact in the swing shelf 169 terminated after threshing in the intensity of the sorting wind of described fan blower 150 generation is well known fact.In the utility model, in order to suitably regulate the rotating speed of described fan blower 150 to control the intensity of sorting wind, and form described blower shaft pulley 153 by belt electrodeless variable-speed pulley.

Belt electrodeless variable-speed pulley is for utilizing buncher (CVT, Continuously Variable Transmission) principle, the interval according to adjustable pulley can be equivalent to, determine the position (radial position) of the V band hung between described pulley, and according to the position of the band determined like this, regulate the revolution of blower shaft 152.Though the structure of this electrodeless variable-speed pulley itself is known, in the utility model, by this belt electrodeless variable-speed pulley is applicable to blower shaft 152, is easy to the revolution regulating fan blower 150, based on this, the intensity of sorting wind can be regulated.

Further, be provided with in parallel and the described Ge Dai mechanism 156 being with mechanism 154 different at described main drive shaft 112.Described band mechanism 156 is for spiral rotary rotating shaft 172 transferring power to the first spiral transferred unit 170.Wherein, the first spiral transferred unit 170, for having transferred the grain of threshing to cereal tank 160, is made up of the horizontal component 170A arranged along horizontal direction and the vertical component 170B vertically arranged.Horizontal component 170A and the vertical component 170B of the first spiral transferred unit 170 as above have the rotating shaft that each helical blade is arranged at lateral surface.This first spiral transferred unit 170 is called conveying worm in technology in the past, is in fact the technology being applicable to present combine, thus omits detailed description.

Owing to being provided with spiral blade at this rotating shaft, thus grain is transferred to cereal tank 160 by the rotation of rotating shaft by spiral vane.Rotating shaft is here spiral rotary rotating shaft 172 as above.Further, spiral rotary rotating shaft 172B is also provided with at vertical component 170B.By band, mechanism 156 receives the spiral rotary rotating shaft 172 of power and the spiral rotary rotating shaft 172B of vertical component 170B to be formed by the mode of bevel gear mechanism 170C transferring power from described main drive shaft 112.

Wherein, the power in described main drive shaft 112 is by spiral rotary rotating shaft 192 transferring power of a Ge Dai mechanism 156 to the spiral rotary rotating shaft 172 of the first spiral transferred unit, asessory shaft 166 and the second spiral transferred unit.

Described asessory shaft 166 is by being with mechanism 164 to swing shelf driving shaft 162 transferring power.By described driving shaft 162, swing shelf 169 and perform at the rotary motion of rear end part and rectilinear motion, while the hay etc. be contained in grain can be sub-elected simultaneously.

By described band mechanism 156, the spiral rotary rotating shaft 192 of transmission of power to the second spiral transferred unit 190 of main drive shaft 112.Wherein, the second spiral transferred unit 190 can transfer cereal again to described swing shelf 169, can perform to be arranged at the rear side bottom of swing shelf 169 process again isolating hay from the cereal mixed with hay completely.This second spiral transferred unit 190 is made up of the horizontal component 190A arranged along horizontal direction and the vertical component 190B vertically arranged.Horizontal component 190A and the vertical component 190B of the second spiral transferred unit 190 as above are made up of the rotating shaft being provided with helical blade, identical with the structure of the first spiral transferred unit 170 as above in fact.

Further, be provided with output mechanism 186 at the opposite side of the output shaft 102A of engine 102, described output mechanism 186 utilizes the transmission of power by being with mechanism 182, for externally discharging cereal from described cereal tank 160.As mentioned above, because the structure for externally discharging cereal from described cereal tank 160 does not have direct relation with the utility model in fact, thus omit the description.

Afterwards, observe by link chain mechanism 120C from extract sword driving shaft 126A receive power extract sword transmission mechanism 200.Now main use extract sword 126 and usually can extract sword for hairclipper formula.That is, extract sword described in by jagged fixing fixed blade and the top being arranged at described fixed blade, and the mobile sword of indentation is formed.This mobile sword, by driving mechanism, performs along left and right directions and comes and goes between rectilinear motion constant region, thus cut off crop between fixed blade.This structure extracting sword itself is known structure is natural.

Further, the sword transmission mechanism 200 that extracts that will be suitable in the utility model in fact also can for known.Also utilize in Japanese Patent the 4241723rd and thisly extract sword transmission mechanism 200, the structure of himself can be known, therefore, extracts sword transmission mechanism 200 described in observing simply.

As shown in Figure 12 to Figure 14, extract sword transmission mechanism 200 comprise be arranged at described in extract the outboard end of sword driving shaft 126A switching mechanism 202 with while be connected with described switching mechanism 202, along the link rod 204 that the fore-and-aft direction consistent with direction of travel is arranged.Described switching mechanism 202 is the device of the circular motion repeatedly rotary motion extracting sword driving shaft 126A being converted to link rod 204.Therefore, described link rod 204 is converted to circular motion in constant angle (part circular motion repeatedly) by switching mechanism 202.Further, the left and right directions that the circular motion repeatedly of the part of this link rod 204 is converted to connecting portion 206 moves repeatedly, and thus, by connecting portion 206, the some of sword 126 that extract of hairclipper formula carries out straight line back and forth movement along left and right directions.

This switching mechanism 202 itself is also known, but observes its exemplary architecture simply.Shown in as exemplary in Figure 13 and Figure 14, in rotation switching mechanism 202, at the angled head 271 be connected with the end extracting sword driving shaft 126A, to arrange interval and the mode that can rotate installs the inclination axle sleeve 272 that can rotate along the surrounding of sloping shaft center f, and by yoke 273, link rod 204 is connected with a pair strong point pin 272a of diagonal position of the periphery being arranged at this inclination axle sleeve 272.If described in extract sword driving shaft 126A and rotate, then make the sloping shaft center f of described inclination axle sleeve 272 work along positive reverse direction, and make to carry out back and forth movement with the link rod 204 be connected with the mode of inclination axle sleeve 272 phase interlock by strong point pin 272a and yoke 273 along predetermined angular.

This link rod 204 can be a power transmission shaft, and the swing arm 275 being arranged at its front end is connected in the mode by contacting link rod 275a phase interlock with the mobile sword extracting sword 116 as above, by the back and forth movement of link rod 204, the mobile sword 212a extracting sword carries out back and forth movement with constant interval stroke.The structure of the swing arm 275 in Figure 14 and contact link rod 275a can be called the straight line back and forth movement switching mechanism 205 formed in Figure 12.

As mentioned above, the sword transmission mechanism 200 that extracts comprising switching mechanism 202 grade as above is also known.Further, apparently, this use is novel is not limited to embodiment as above.Such as, the rotary motion extracting sword driving shaft 126A described in can also adopt and drive by crank or cam mechanism etc. the structure in the past extracting sword 126.

As mentioned above, the sword transmission mechanism 200 that extracts comprising switching mechanism 202 grade as above is also known.Further, apparently, this use is novel is not limited to embodiment as above.Such as, the above-mentioned rotary motion extracting sword driving shaft 126A can also adopt and drive by crank or cam mechanism etc. the structure in the past extracting sword 126.

Afterwards, the structure for changing the speed forming each axle of the present utility model is observed.Various crop can be gathered in the crops with combine, such as, other crops such as barley or soybean.Like this, when the crop of intending to gather in the crops is different, in fact, the rotating speed of each axle should change as above, but the revolution changing engine is not enough to change described rotating speed.Therefore, there is at the utility model the structure that can be easier to the revolution changing each axle.

As mentioned above, when in order to gather in the crops different crops carry out speed change time, should be considered to most important can be the rotating speed of threshing barrel 142 of sheller unit 140.Such as, extract power shaft 120A and control in the mode with constant revolution, to this, the revolution of threshing axle 146 should change.Such as, when gathering in the crops soybean, even if extract power shaft 120A there is the revolution identical with barley, but the revolution different from the situation of barley should be had for the threshing power shaft 142A of threshing bucket 142.

Further, preferably, the change of the revolution of what is called threshing axle 146 that threshing barrel 142 is rotated can be that the revolution of threshing power shaft 142A changes.Therefore, in the embodiment shown in fig. 8, observe when leading to the transmission of power of threshing power shaft 142A from main drive shaft 112, and for changing the structure of speed when leading to from described threshing power shaft 142A the transmission of power extracting power shaft 120A.

As shown in Figure 8, band mechanism 142B for connecting main drive shaft 112 and threshing power shaft 142A comprises and is arranged at main drive shaft 112, and the driving shaft pulley 112P worked as drive pulley, is arranged at threshing power shaft 142A and act as the threshing power shaft pulley 142P of follow-up pulley and winding and engaging in the band B between described driving shaft pulley 112P and threshing power shaft pulley 142P.Because described main drive shaft 112 has the fixing revolution because of the output in engine 102, therefore in order to change the revolution of threshing power shaft 142A, need to replace at least one in described driving shaft pulley 112P or threshing power shaft pulley 142P.That is, change the size of some pulleys, thus the revolution of threshing power shaft 142A can be regulated.

But, in reality not preferably, usually, can perform in the combine of the state of work after completing, be separated pulley self from rotating shaft and replace pulley.Therefore, in the utility model employing structure as shown in FIG. 9 and 10.Wherein, in the utility model, the structure of pulley as shown in FIG. 9 and 10 can be applicable to arbitrary place of driving shaft pulley 112P as above or threshing power shaft pulley 142P, especially can be applicable to any pulley forming band mechanism of the present utility model.And, in Fig. 9 and Figure 10, be described using the example being applicable to the threshing power shaft pulley 142P being arranged on threshing power shaft 142A as typical pulley of the present utility model.

When described threshing power shaft 142A actual installation is in combine, so that described threshing power shaft 142A can be supported in the mode of the internal rotating of gear casing C.Be provided with threshing power shaft pulley 142P in the outboard end of described threshing power shaft 142A, be provided with bevel gear mechanism 145 as above in the other end of threshing power shaft 142A, described bevel gear mechanism 145 is arranged at the inside of gear casing C.Known, the both ends of described threshing power shaft 142A are supported in the mode can selected by multiple bearing Be.

And, according to the utility model, as shown in Figure 9, described threshing power shaft pulley 142P is made up of sheave portion 142Pa and shaft sleeve part 142Pb, described shaft sleeve part 142Pb is to be pressed into the end in the threshing power shaft 142A given prominence to laterally from gear casing C, and the mode together rotated with threshing power shaft 142A is formed.Described sheave portion 142Pa, by multiple bolt B o, combines with described shaft sleeve part 142Pb in the mode that can install and remove.In the illustrated embodiment, known multiple bolt B o, by being formed at the through hole O of the inner flange F of sheave portion 142Pa, being combined with the fastener hole L screw of the side forming in shaft sleeve part 142Pb, making described sheave portion 142Pa be fixed on shaft sleeve part 142Pb.

According to structure as above, the described bolt B o of known decomposition, thus sheave portion 142Pa can be replaced simply.Therefore, it is possible to know and can be easy to replace the different sheave portion 142Pa of specification, such as, if replace with the less sheave portion of diameter, then the rotating speed of threshing power shaft 142A can accelerate, if replace with the larger sheave portion of diameter, then the rotating speed of threshing power shaft 142A can be slack-off.As mentioned above, according to the utility model, by replacing threshing power shaft pulley 142P, regulating the revolution of threshing power shaft 142A, result, can regulate in the mode making the revolution of threshing barrel 142 be suitable for object.

Here, referring again to Fig. 8, as mentioned above, if threshing power shaft pulley 142P is replaced, then can be replaced the pulley also comprising the auxiliary pulley pp be shown in broken lines.Further, as described below, this auxiliary pulley pp is for regulating the revolution extracting power shaft 120A.Further, by the replacement of threshing axle pulley 142P as above, threshing power shaft 142A is the state that revolution is conditioned.

That is, this state is the state of the revolution only regulating threshing power shaft 142A.As mentioned above, if results object changes, then should regulate the revolution of threshing power shaft 142A, but preferably, the revolution extracting power shaft 120A maintains revolution originally.Therefore, revolution should be revised with the revolution extracting power shaft 120A corresponding to the mode of the change of the revolution of threshing power shaft 142A.Such as, suppose because replacing threshing power shaft pulley 142P and the revolution of threshing power shaft 142A decreases about 10, the revolution extracting power shaft 120A also reduces about 10 thereupon, therefore, should extract the rotation of power shaft 120A described in the revolution before deceleration compensates.

Wherein, can most conveniently regulate by described threshing power shaft 142A be connected with band mechanism 120B extract the revolution of power shaft 120A can for replace be arranged at extract power shaft 120A extract power shaft pulley (threshing power shaft pulley).Therefore, with extract described in being arranged at power shaft 120A extract mode that power shaft pulley 120P also has a structure identical with threshing power shaft pulley 142A as above formed described in extract power shaft pulley 120P, thus can be easy to regulate the revolution extracting power shaft 120A.

As other structures for regulating the revolution extracting power shaft 120A, the pulley that power shaft 120A arranges different size can also be extracted in advance described, and according to object crop, the band of band mechanism 120B is hung over the pulley of different size, regulate the revolution extracting power shaft 120A thus.That is, mean in formation from the pulley of the band mechanism 120B of described threshing power shaft 142A transmission of drive force, form by the step block exporting different revolution the pulley being arranged at and extracting power shaft 120A, thus the revolution extracting power shaft 120A can be regulated.

Further, as another embodiment for extracting the revolution of power shaft 120A described in regulating, as shown in Figure 8, the revolution adjustment pulley 120Pa by multiple bolt B o mounting or dismounting is set in the original side extracting power shaft pulley 120A.That is, as mentioned above, if the speed of threshing power shaft 142A changes, then in order to change the speed extracting power shaft 120A correspondingly, and extra revolution adjustment pulley 120Pa is installed in the outside extracting power shaft pulley 120A.Now, described revolution adjustment pulley 120Pa is can be formed by the mode of bolt B o mounting or dismounting.Further, if be connected with described revolution adjustment pulley 120Pa auxiliary pulley pp as above with band, then the revolution extracting power shaft 120A can be regulated in fact.

Here, the preferred embodiment being used for threshing power shaft 142A as above and the revolution that extracts power shaft 120A being converted to respectively the revolution corresponding with crop is observed.Such as, Fig. 7 illustrates the transmission of power of barley as the situation of object, and Figure 11 illustrates that object crop becomes the transmission of power of the situation of soybean.With reference to this Fig. 7, Figure 11 and Fig. 8, observe preferred embodiment.

First, preferably, in order to the revolution of threshing power shaft 142A is changed into optimal revolution, and the driving shaft pulley 112P of the main drive shaft 112 and threshing axle pulley 142P of threshing power shaft 142A is together replaced.Comparison diagram 7 and Figure 11 known, the described driving shaft pulley 112P in Figure 11 and threshing axle pulley 142P is replaced.That is, the driving shaft pulley 112P ' of the replacement pulley that uses diameter less, the pulley that the threshing axle pulley 142P ' of replacement uses diameter larger.Therefore, the revolution of threshing power shaft 142P more declines.

And, can know that the outside extracting power shaft pulley 120P extracting power shaft 120A described in being installed on is provided with the extra revolution adjustment pulley 120Pa installed by bolt, band with mechanism 120B hangs over described revolution adjustment pulley 120Pa, compared with original pulley 120P, the diameter of this revolution adjustment pulley 120Pa is little.According to structure as above, extract power shaft 120A described in known to rotate relative to the threshing power shaft 142P changed with low speed with the revolution that the situation of results barley is equal to.

As mentioned above, known in the utility model, optionally replace and be arranged at threshing power shaft 142A respectively, extract the threshing power shaft pulley 142P of power shaft 120A and main drive shaft 112, extract power shaft pulley 120P and driving shaft pulley 112P, thus the revolution of the most applicable target thing can be adjusted to.In the utility model, not replace a pulley, thus the revolution of rotating shaft can be regulated to be of basic technological thought, but with according to intending the object of work in operation class power transmission structure as above, and threshing power shaft and the revolution that extracts power shaft are adjusted to one that relatively best revolution is basic technological thought.

Above; for those skilled in the art; various distortion can be carried out in the category of basic fundamental thought of the present utility model as above, and protection domain of the present utility model claimed scope should explain it is apparent based on appended utility model.

Claims

1. a transmission device for combine, comprises for extracting extracting device, by the described sheller unit extracting the paddy stalk threshing that device extracts and the running gear of walking by the driving force of engine, it is characterized in that for making of crop,

The transmission device of described combine also comprises:

Main drive shaft (112), an end of described main drive shaft (112) receives the driving force of the output shaft (102A) of engine by band mechanism (112B),

Threshing power shaft (142A), an end of described threshing power shaft (142A) receives power by band mechanism (142B) from the other end of described main drive shaft (112), and

Extract power shaft (120A), described in extract an end of power shaft (120A) by receiving power with the described band mechanism (120B) being with mechanism (142B) to be together connected in parallel in described threshing power shaft; Wherein

Bevel gear mechanism (145) next threshing axle (146) transmitting rotary power to sheller unit of the other end by being located at the inside of gear-box (144) of described threshing power shaft (142A).

2. the transmission device of combine according to claim 1, is characterized in that,

Described band mechanism (142B) comprises the driving shaft pulley (112P) being installed on described main drive shaft (112), the threshing axle pulley (142P) being installed on described threshing power shaft (142A) and is wound around and is engaging in the band (B) of described driving shaft pulley and threshing axle pulley;

Described driving shaft pulley or threshing axle pulley are made up of shaft sleeve part and sheave portion respectively, and described shaft sleeve part is pressed into the end in main drive shaft or threshing power shaft, and described sheave portion can install and remove sheave portion in described shaft sleeve part by multiple bolt; And

By being separated the sheave portion of driving shaft pulley or threshing axle pulley from shaft sleeve part and combining with the sheave portion of other specifications, the revolution of threshing power shaft can be changed.

3. the transmission device of combine according to claim 2, is characterized in that, also comprises compensating unit, and described compensating unit is used for changing with the revolution of described threshing power shaft the revolution changing accordingly again and extract power shaft.

4. the transmission device of combine according to claim 3, it is characterized in that, in described compensating unit, what form described band mechanism (120B) extracts power shaft pulley (120P) by be wound around and the sheave portion of locking band and the shaft sleeve part be pressed in extracting power shaft are formed, and replaces described sheave portion.

5. the transmission device of combine according to claim 3, it is characterized in that, described compensating unit is made up of revolution adjustment pulley (120Pa), and described revolution adjustment pulley (120Pa) can be installed and removed in forming the described outside extracting power shaft pulley (120P) of being with mechanism (120B) by bolt.

6. the transmission device of combine according to any one of claim 1 to 5, it is characterized in that, also comprise with the band mechanism (154) be connected with main drive shaft with the described mode being with mechanism (142B) in parallel and be with mechanism (156), by described band mechanism (154), blower shaft (152) is driven, make swing shelf drive shaft by described band mechanism (156).

7. the transmission device of combine according to any one of claim 1 to 5, it is characterized in that, also comprise and the described band mechanism (102B) being with mechanism (112B) to be together connected in parallel with the output shaft of engine, by described band mechanism (102B) to stepless speed change device and running gear transferring power.

8. the transmission device of combine according to claim 6, it is characterized in that, described band mechanism (154) also comprises blower shaft pulley (153), described blower shaft pulley (153) is installed on blower shaft (152), and described blower shaft pulley (153) is made up of belt electrodeless variable-speed pulley.

9. the transmission device of combine according to any one of claim 1 to 5, is characterized in that, also comprises:

Extract sword power shaft (126A), power is received from the described power shaft that extracts, and extracting sword (126) by transmission mechanism (200) driving, described transmission mechanism (200) comprises the switching mechanism (202) being arranged at end;

First asessory shaft (126Aa), is connected with auger driving shaft (124A) by link chain mechanism (124Ac), and described auger driving shaft (124A) is connected with the auger that extracts extracting device;

Dialing-grain unit driving shaft (122A), for receiving power to drive rake dialing-grain unit from described auger driving shaft (124A); And

Link chain mechanism (120C), extracts sword driving shaft (126A) and the first asessory shaft described in the described driving force extracting power shaft (120A) being together passed to.

10. the transmission device of combine according to claim 9, it is characterized in that, described link chain mechanism (120C) by be arranged at extract power shaft sprocket wheel (120s), be arranged at described in extract the sprocket wheel (126s) of sword driving shaft, the sprocket wheel (126As) being arranged at described first asessory shaft (126Aa) and a chain simultaneously hanging over described three sprocket wheels is formed.

The transmission device of 11. combines according to claim 10, is characterized in that, also comprise:

Second asessory shaft (124Aa), receives power by band mechanism (124Ad) from described auger driving shaft; And

Band mechanism (122Ab), for connecting described second asessory shaft and described dialing-grain unit driving shaft (122A); Wherein

The pulley being arranged at described dialing-grain unit driving shaft is made up of secondary pulley.