CN1074894C - Walking system for combine harvester with transversely installed threshing separator - Google Patents

Abstract

A self-propelled combine harvester with a wheel-type traveling speed system and a threshing and separating device. The combine has a wheel-type traveling system and a threshing and separating device installed transversely relative to the traveling direction and working according to an axial flow system.

Description

Self-propelled combine harvester with wheeled travel system and threshing separation device

The invention relates to a self-propelled combine harvester with a wheeled walking system and a threshing and separating device, which is installed transversely and works in an axial flow system, and is equipped with a conveying device underneath which conveys the grain/hull mixture to the conveying bottom of the screening device.

Known a kind of self-propelled combine harvester in the prior art, this has more detailed explanation among the document DE 3738991, it has the threshing separation device that is installed perpendicular to the direction of travel, works by the axial flow system, this combination The harvester stores the straw after passing through the threshing separation device on the side of the combine harvester. However, the described machine has a tracked travel system, which is complex to produce and to use. In addition, DAS 1 222 307 discloses a self-propelled combine harvester, which also has a threshing and separating device that is installed perpendicular to the direction of travel and works by an axial flow system, but is equipped with a wheeled travel system.

According to the arrangement of the walking system and combination in the combine harvester described above, it is impossible to build a small, compact and cost-effective self-propelled combine harvester, which has both a wheeled walking system and a machine with a relative walking direction of Horizontally installed threshing and separating device. For the small, compact self-propelled combine described in DE 3738991, it is not possible to simply install the wheeled travel system in a known position as shown in DAS 1 222 307, because, otherwise, the threshing separation device The length has to be shortened so that it does not become too wide, in addition, the storage of the straw will also be affected. Although the self-propelled combine harvester shown in DAS 1222 307 has a wheeled walking system, its various working mechanisms have become an unfavorable arrangement. Under this structural arrangement, it is impossible to produce a small, compact and cost-effective combination harvester. combine harvester.

The object of the present invention is to create a combine harvester of the type described in more detail at the outset, which can be small and compact on the one hand and which can be equipped with a wheeled travel system on the other hand.

The solution to the object of the present invention is to propose a self-propelled combine harvester with a wheeled walking system and a threshing and separating device. The underside is equipped with a conveying device, which conveys the mixture of grain and chaff to the conveying bottom of the sifting device, wherein, viewed from the direction of travel, the shaft of the front wheel of the self-propelled combine is installed before the threshing and separating device, Mounted in front of and about the lower third of the forward substantially vertical strut of the main frame of the harvester, and between the feed opening and the discharge end of the inclined conveyor tunnel.

In a further development of the invention, at its straw outlet end, the rotor protrudes at least partially above the front wheel, and the box surrounding the rotor and the conveyor below it has a The recess, onto which the front wheel protrudes at least by part of the rotor, is movable along the outer boundary of said box. In order to make full use of the installation space below the threshing and separating device, a shift gearbox for changing the transmission ratio of the drive force supplied to the front axle is mounted below the threshing and separating device. To accommodate the brakes, it is recommended to mount at least one brake disc on one output shaft of the shift gearbox. Furthermore, in order to transmit the driving force from the shift gearbox to the front wheels, the longitudinal distance between the shift gearbox and the shafts of these front wheels is controlled by at least one output shaft and at least two The gears span, and one of these gears is non-rotatably connected to the shaft of a front wheel.

The invention will be described in more detail below according to an embodiment and several schematic diagrams representing said embodiment, wherein:

Fig. 1 is the side view of the combine harvester proposed by the invention, and

Fig. 2 is the plan view of the combine harvester that the invention proposes.

Fig. 1 shows a self-propelled combine harvester 2 with a wheeled travel system comprising front wheels 4, 6 and rear wheels 8, 10 and a threshing and separating device 12 installed transversely and working in an axial flow system. Below the threshing and separating device 12 there is installed a conveying device 14 which conveys the grain/chaff mixture to the conveying bottom of the sifting device. The threshing and separating device 12 and the conveying device 14 are surrounded by a box 16 . During harvesting, the crops to be harvested are cut by the cutting mechanism 18 , are conveyed sideways to the inclined conveyor 20 , and enter the threshing and separating device 12 from the latter. When the threshed grain/husk mixture falls through the sieving opening into the conveying device 14 below it so as to be sent to the cleaning sieve 22 from there, the threshed straw leaves the threshing and separating device 12 through the discharge port 24 and is discharged by the discharge port 24. Outlet comes out, and the straw that threshing falls on the conveyer belt 26, and comes out by its rear end, falls on the ground with the strip long heap form.

In FIG. 2 , the axle 28 of the front wheels is arranged below the inclined conveyor 20 and in front of the foremost substantially vertical strut (not shown in detail) of the main frame of the combine harvester in terms of spatial position. Drive is transmitted from motor 30 to shift gearbox 32 and from there via output shaft 34 to drive case 36 in known manner. The brake device 38 is arranged on an output shaft 34 . In order to arrange the shaft 28 as far forward as possible, gears 40 are placed in the drive box 36, these gears transmit the driving force from the output shaft 34 to the shaft 28 and at the same time straddle the shaft 28 and the self in a cost-effective manner. Distance between bodies of walking combine 2.

In order to achieve, on the one hand, the threshing and separating device 12 as long as possible, and on the other hand, the width of the harvester as narrow as possible, the housing 16 has a recess protruding into the interior of the housing in the area of the shadow surface 42, at least partly protruded by the rotor. The front wheel 4 above it then moves along the outer boundary of the casing. The rotor of the threshing and separating device 12 is mounted high enough that it protrudes above the front wheels 4 over the entire width of the harvester.

Claims (5)

1, self-propelled combine with running gear system and installed threshing separator, installed threshing separator by relative direction of travel for laterally installing and by the axial flow system works, below installed threshing separator, be equipped with conveyer, it is delivered to the mixture of cereal and husk at the bottom of the transmission of screening plant, it is characterized in that, from direction of travel, the axle of self-propelled combine front-wheel is installed in before the installed threshing separator, be installed on the most preceding basic of grain header main frame, and be installed in to tilt to transmit between the charging aperture and its outlet side of passage for before the vertical pillar and under about 1/3rd places of back.

2, by the described self-propelled combine of claim 1, it is characterized in that, at its straw port of export, rotor is projected into the front-wheel top at least in part, the casing that surrounds this rotor and be positioned at the conveyer below it then has a recess that stretches to this box house, and the front-wheel that is projected into its top by the part rotor then moves along the external boundary of described casing at least.

3,, it is characterized in that the shift transmission that the gearratio of front-wheel drive power is carried out conversion is installed under the installed threshing separator by claim 1 or 2 described self-propelled combines.

4, by the described self-propelled combine of claim 3, it is characterized in that, on an output shaft of shift transmission, brake disc is installed at least.

5, by the described self-propelled combine of claim 3, it is characterized in that, for driving force is transferred to front-wheel by shift transmission, fore-and-aft distance between the axle of shift transmission and these front-wheels is reached at least two by at least one output shaft and belongs to an output shaft and pitch wheel leap, and one in these gears is connected with the axle of a front-wheel un-rotatably.

Images