JP3469427B2 - Handling depth transfer device in combine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handling depth transporting device for transporting grain culm caused by a grain culm raising device between a scraping device and a threshing unit, and more particularly to a handling depth transporting device above the scraping device. By pulling up to the position and extending the carrier integrally,
The present invention relates to a handling depth transfer device in a combine that can smoothly transfer cut culms.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 9, a harvesting and threshing operation of combine harvesters has been carried out by using a grain culm raising device a, a cutting blade device b, a scraping device c, and a handle as shown in FIG. The pretreatment section e equipped with the depth transfer device d is erected, and when the machine body is running, the grain culm raised by the grain culm raising device a is cut by the cutting blade device b, and then the harvested grain is cut. It is configured to transfer the culm from the scraping device c to the grain culm supply chain f via the handling depth transfer device d, and to supply the cut grain culm to the subsequent threshing section.

Of the constituent devices of the pretreatment section,
The handling depth transfer device d, which automatically adjusts the handling depth according to the culm length of the cut grain culm and transfers the culm, extends along the tip end side transporting portion h formed by winding the transport tine g and a guide rail (not shown). The stocker side transfer parts j formed by winding the transfer chains i are arranged vertically apart from each other and arranged side by side, and the transfer area on the right side in the plan view of FIG. It is arranged in a slanted shape toward the front of the harvesting culm, and the handling depth conveying device d is moved up and down by the automatic adjustment of the handling depth according to the culm length of the mowing grain culm, and via the conveying chain k of the scraping device c. The stock side of the harvested culm to be transported is the transport start end position X of the handling depth transport device d.
When it is transported to, the stock side of the harvested grain culm is sandwiched and transferred by the transport chain i of the stocker side transport unit j, and the tip side of the harvested grain culm is transferred to the transport tine of the tip side transport unit h. g of the harvested grain culm, and while the harvested grain culm is being transported, the harvested grain culm is gradually transformed into an inclined posture that approaches the horizontal state between the root side and the tip side, and the harvested grain culm is cut in the subsequent grain culm supply chain f. It is designed to transfer grain culms.

However, in the conventional continuous transfer structure from the scraping device c to the handling depth conveying device d, the tip end side of the cut culm is continuously transferred between the scraping device c and the handling depth conveying device d. Since the scraping conveyors m and n are fixed independently of the handling depth conveying device d, the positional relationship between the tip of the cut grain culm and the scraping conveyors m and n changes depending on the length of the culm. Conveyance disorder easily occurs due to the change of the culm posture, and in order to eliminate this, the scraping conveyors m and n are provided in a plurality of stages (m1, m2, n1, n2) to secure the scraping operation that follows the culm length. In that case, there is a drawback that the weight of the entire pretreatment section is unavoidably increased and the manufacturing cost is increased due to the increase in the number of constituent parts.

Therefore, a configuration has been proposed in which the tip end side transport portion h and the stocker side transport portion j on the transport start end side of the handling depth transport device d are extended forward as they are. When h is extended while maintaining a required vertical distance between the stocker side transport section j, there has been a problem that it is not possible to appropriately deal with a cut culm having a short culm length.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation and was devised in order to solve the problems of the prior art. By extending the scraping carrier that is located in front of and moving up and down together with the scraping carrier, it is possible to adjust the handling depth without the need for the complicated structure of arranging the scraping body in multiple stages as in the conventional case. Vertically moving handling depth The scraping conveyor along with the main body of the conveyor moves up and down to prevent culms from being pulled out and to prevent conveyance disturbances, etc., and to smoothly transfer the ears of the harvested grain culms while maintaining a stable culm posture. The present invention is intended to provide a handling depth transfer device in a combine that can be used.

[0007]

In order to solve the above-mentioned problems, the first technical means adopted by the present invention comprises an ear tip side conveying section and a stocker side conveying section which are arranged side by side in a vertical position. When the handling depth conveying device is mounted on a combine, which is tilted forward in the machine body traveling direction and tilted in the machine body width direction with the end of the conveying side as a fulcrum, is swung in front of the handling depth conveying device. The device is arranged in a forward inclination , and the scraping carrier for scraping the tip end side of the harvested grain culm is a tip side of the handling depth carrier device.
Located in the upper part of the vehicle and in front of the aircraft
Face the upper side of the scraping device,
When it is extended in parallel with the handling depth transfer device in parallel when viewed from the front of the body
In both cases, the stocker side transfer area of the above-mentioned handling depth transfer device
Scratch on the right side of the machine body in the lower part of the transport area
A series of units extending in front of the machine , which are brought close to the stocker side carrier area, are continuously connected with the carrier start end area of the tip side carrier section inclined in the machine width direction and the carrier end area of the scraping carrier. Characterized by the formation of a transport path,

As a second technical means, the right side of the aircraft in the traveling direction
Depth of the handling device from the scraping carrier located on the side
It is characterized in that a series of conveyance areas reaching the front side conveyance section are formed in a substantially straight line shape.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1 and FIG. 2, reference numeral 1 is a combine for three-row cutting, in which a pretreatment unit 4 is installed on the front portion of a machine body 3 equipped with a crawler traveling device 2, and a grain culm is raised in the pretreatment unit 4. A device 5 is provided, and dividers 7, 7, ... Are provided at the front ends of the pretreatment unit frames 6, 6, ... Forming the pretreatment unit 4.

A reciprocating type cutting blade device 8 is provided on the lower surface of the rear portion of the pretreatment frames 6, 6 ..., and raises the culm culled by the dividers 7, 7 ,. Device 5
After cutting, the cutting blade device 8 cuts the stock of the grain culm,
Next, the harvested grain culm is continuously transferred to the grain culm supply chain 11 via the scraping devices 9a, 9b, 9c and the handling depth transfer device 10 which are juxtaposed in the pre-treatment section frames 6, 6 ... , Is supplied to a threshing unit (not shown).

The scraping devices 9a, 9b and 9c are shown in FIG.
, The drive pulley 13 coaxially supported by the star wheels 12, 12 mounted on the pretreatment frame 6, 6, and the driven pulley 14 positioned in front of the drive pulley 13.
, And a conveyor belt 16 having a plurality of scraping tines 15 projecting from each other at predetermined intervals, and a conveyor chain wound under the drive pulley 13 coaxially therewith. 17a and 17b are extended to the conveyance start end position X of the handling depth conveyance device 10, and the tip side and the stock side of the cut culm cut by the cutting blade device 8 are conveyed by the conveyor belt 16 and the conveyor chain 17.
It is configured to be continuously transferred to the handling depth transfer device 10 via a and 17b.

Further, the handling depth conveying device 10 has a tip side conveying section 20 formed by winding the conveying tines 18 around a belt body 19 which is obliquely provided at a predetermined interval, and conveys along a guide rail (not shown). The stocker side transport parts 22 formed by winding the chain 21 are arranged side by side at upper and lower positions, respectively.
And the pivot point of the upper and lower motion and laid on turning the proximal end of the transmission pipe 23 located in the conveying end side, with has a Jikuka arrangement inclined forwardly inclined to using merge body width direction in the traveling direction of the machine body 3 As shown in FIG. 4, the tip of the handling depth transfer device 10 faces the upper surface of the scraping device 9a located in front of the scraping device 9a on the right side in the traveling direction of the machine , and the scraping device 9a and the machine body are aligned.
The scraping carrier 24 parallel to each other in a plan view is positioned above the tip side carrier unit 20 and integrally extends toward the front of the machine body to the handling depth carrier device 10, and extends in the machine body width direction. A series of transport routes B forming a substantially straight transport region toward the front of the machine body 3 is formed by the continuous transport of the transport start end region of the inclined tip side transport unit 20 and the transport end region of the scraping transport body 24. ing.

Further, it is located above the carrying area of the scraping devices 9b and 9c on the center and the left side in the traveling direction of the machine body shown in FIG.
A support pipe 25 extending downwardly through the upper surface of the handling depth transfer device 10 is provided with a transfer carrier 24 ′ that holds the same forward tilted posture in the machine body traveling direction as the side view of the transfer carrier 24. Is disposed at the tip of the transfer pipe 23, and the driving force supplied from the transmission pipe 23 to the stocker side transfer portion 22 of the handling depth transfer device 10 is scraped through the support pipe 25 and the transfer body 24 '.
It is configured to branch supply to.

FIG. 5 shows a driving structure of the scraping carrier 24, in which 26 is a starting end roller for winding the carrying tip of the tip side carrying part 20, and 27 is the starting end roller 2.
Reference numeral 6 is a support shaft, and 28 is a joint portion for transmitting the rotational power of the support shaft 27 to the input shaft 29 on the scraping conveyance body 4 side.

That is, an input sprocket 30 is pivotally supported on the input shaft 29 on the side of the scraping carrier 24, and a drive chain 33 is wound between the input sprocket 30 and an intermediate sprocket 32 pivotally supported by an intermediate shaft 31. In addition, a drive sprocket 37 formed by winding a chain 36 having a scraping tine 35 protruding from the driven roller 34 is axially supported by a shaft portion 31a extending below the intermediate shaft 31. When the tip side of the harvested grain culm is continuously transferred in association with the conveyance drive of the handling depth transfer device 10, as shown in FIG. 6, the handling depth transfer device 10 is inclined in the machine width direction. In addition, the scraping device 9a and the scraping carrier 24 are kept parallel to each other in the machine width direction, and the forward tilt angle is larger than the forward tilting posture angle of the scraping device 9a. The conveying end of the scraping device 9a It can be contact, especially reaper culms it becomes possible to smoothly perform transfer when it is short culm. Reference numeral 38 is a cover body that covers the upper surface of the scraping carrier 24, and 39 is a tip-end rest plate integrally formed on the side surface of the cover body 38 on the carrying region side of the scraping carrier 24.

Since the present invention is constructed as described above,
When performing cutting and threshing work, the grain culm sown by each divider 7 is raised by the grain culvert raising device 5, and the cutting blade device 8 cuts the grain culm stock source, and then the scraping device 9, The harvested grain culm is taken over to the grain culm supply chain 11 via the handling depth transfer device 10 and supplied to the threshing unit (not shown). In the harvesting and threshing work of such grain culm, the scraping devices 9a to 9c are used. The scraped cut culm is conveyed in the direction indicated by the thick arrow in FIG. 3, with its tip end side and plant base side being supported by the scraping tine 15 and the transfer chains 17a, 17b, respectively. Then, while the stocker side is sandwiched between the transfer chains 17a and 17b, the tip end side of the cut grain culm is the scraping transfer body 24, 24.
‘′ Is continuously fed at the transport start end position. At this time, the scraping transport bodies 24, 24 ′ are integrally moved up and down by adjusting the handling depth of the handling depth transport device 10 with the transport end side as a fulcrum. The tip end side of the cut grain culm can be held at the conveying position adapted to the culm length by moving in advance and set to the tip position according to the length of the culm length of the cut grain culm.

Next, the cutting culms that have merged at the conveying start end position X of the handling depth conveying device 10 have their tips on the side of the tips 20.
The stock tines are successively transferred to the stock tines 18 of the stock tin side carrying section 2 while the stock tines are gradually brought closer to the horizontal state between the stock tin side and the tip side during the carrying. The harvested grain culm is transferred to the succeeding grain culm supply chain 11 while being transformed into the inclined posture.

Therefore, since the scraping conveyors 24 and 24 'move up and down integrally in tandem with the vertical movement of the handling depth adjusting device 10 for adjusting the handling depth of the handling device 10, as in the prior art. Without scraping the culms and disturbing the transportation, the harvested grain culms are transferred smoothly while maintaining the stable culm posture on the tip side without the need for a complicated structure in which the scraping carrier is arranged in multiple stages. be able to.

In addition, as shown in FIG.
In FIG. 4, the tip side transport area Y parallel to the scraping device 9a on the right side in the machine width direction in the traveling direction is relatively displaced with respect to the tip side transport area Z of the handling depth carrier device 10 inclined in the machine width direction. Since the scraping tines 35 and the transport tines 18 forming the respective transport areas Y and Z do not interfere with each other, the harvested grain culm culm can be continuously transferred from the scraping transport body 24. The transporting tines 18 that face each other can surely carry out the feeding, and further the scraping transporting body 24 parallel to the scraping device 9a.
Has a forward tilt angle that is larger than the forward tilt posture angle of the scraping device 9a, so that the transport start end of the scraping carrier 24 and the transport end of the scraping device 9a can be brought close to each other, and especially the harvested culm is short. If it is a culm, it can be delivered smoothly.

Incidentally, FIG. 7 shows the above-mentioned scraping device 9a.
9c and a transfer chain 1 which constitutes the handling depth transfer device 10.
7a, 17b, and 21 show a chain roller mounting structure provided in the bent portion at the winding position,
40 is a chain roller of the bent portion, 41 is a chain roller 40
Slip-off prevention cover for the front and back surfaces of, and 42 for the chain roller 4.
Reference numeral 0 denotes a pivot shaft, 43 is an opening formed in each of the slip-off prevention covers 41, 41, and a rotation direction (arrow) toward the front and back surfaces of the chain roller 40 inside the opening 43. An anti-winding plate 45 having an inclined surface 44 facing the front side is fixed, and the inclined surface of the anti-winding plate 45 is for winding cuttings, straws, etc., which are wound around the chain roller 40 by the transport operation of the transport chains 17a, 17b, 21. By guiding it to 44, it is possible to prevent winding around the chain roller 40, prevent wear of the bearing of the chain roller 40 and the transport chain, and ensure a smooth transport operation without transport failure.

In FIG. 8, instead of the winding prevention plate 45 fixed to the inside of the opening 43, a predetermined portion of the slip-off preventing covers 41, 41 is cut out, and this is bent inward to bend the chain roller 4.
The inclined surfaces 44 'facing the direction of rotation (arrow) toward the front and back of 0 are integrally formed. With this configuration, it is possible to prevent winding around the chain roller 40 with a simple structure without separately providing the winding prevention plate 45.

[0022]

In summary, according to the present invention, the handling depth transporting device in which the tip side transporting section and the stocker side transporting section are arranged side by side at the upper and lower positions, is advanced with the transporting end side as a fulcrum. In a combine that is tilted forward and tilted in the machine width direction, a scraping device is arranged in a forward tilt in front of the handling depth transfer device , and the tip side of the harvested culm is located. The scraping carrier that scrapes the
Located on the upper side and in front of it, the right side of the aircraft
Facing the upper surface of the scraping device of the
It is common to extend in parallel with the handling depth transfer device in parallel when viewed from the front.
In addition, the stocker side transfer area of the above-mentioned handling depth transfer device
At the lower part of the transport area,
In proximity to the strain base side conveyance zone of the location, in communication passage between the conveying end area of the transfer start region and the take-carrier of the tip-side conveying portion inclined in the machine body transverse direction, a series extending forward fuselage Since the transfer path is formed, by the scraping transfer body which is located in front of the transfer start end of the handling depth transfer device and moves up and down integrally therewith,
Unlike the conventional case, the tip side of the harvested grain culm is held in a stable culm posture without the need for a complicated configuration of arranging the scraping carrier on the tip side in multiple stages and preventing the culm from being pulled out and the transport being disturbed. However, the transfer area of the scraping transfer body parallel to the machine width direction is offset relative to the transfer area of the handling depth transfer device that is inclined in the machine width direction, and the transfer is continued. Therefore, the tine on the handling depth side of the cutting device, which directly faces the culm of the cutting grain culm, surely acts on the tine of the cutting grain culm without any interference between the tines forming each transporting area, and the scraping carrier and the scraping are performed. The respective transfer areas of the device can be close to each other, and the cut culm can be delivered in an orderly manner at the transfer start end of the handling depth transfer device. Since the scraping carrier itself, which is interposed between the scraping device and the handling depth transport device, does not interfere with the transport area formed by each device, the stocker side transport of each device located below it The parts can be arranged close to each other, and the deep handling performance for short culm can be improved. Also, how to proceed the aircraft
From the scraping conveyor located on the right side to the handling depth conveyor
Since the series of transportation areas to the tip side transportation section of the plant are made in a substantially straight line, it is possible to arrange the transport chain that transports the stocker side in a substantially straight line, and transport from the scraping device to the handling depth transport device. It is possible to carry out smooth handling depth conveyance by eliminating unnecessary friction and conveyance disturbance in the route leading to the start end. It has a useful new effect such as.

[Brief description of drawings]

FIG. 1 is a front side view of a combine.

FIG. 2 is a front side view of the combine.

FIG. 3 is a main part plan view showing a grain culm transport path in a pretreatment unit.

FIG. 4 is a plan view of a main part showing the arrangement of a handling depth transfer device and a scraping transfer body.

FIG. 5 is a side sectional view of an essential part showing the interlocking configuration of the handling depth transfer device and the scraping transfer body.

FIG. 6 is an AA showing the arrangement of a scraping carrier and a scraping device.
FIG.

FIG. 7A is a cross-sectional view of essential parts showing a mounted state of a transport chain and a chain roller. (B) is a top view same as the above. (C) is a principal part operation | movement explanatory drawing which shows the positional relationship of the inclined surface of a winding prevention board, and a chain roller.

FIG. 8A is a cross-sectional view of essential parts showing a mounted state of a transport chain and a chain roller. (B) is a top view same as the above. (C) is an explanatory view of a main part showing the positional relationship between the inclined surface of the slip-off preventing cover and the chain roller.

FIG. 9 is a main part plan view showing a conventional grain culm transporting route in the pretreatment unit.

[Explanation of symbols]

1 aircraft 9a Scraping device 10 Handling depth transfer device 20 Tip side transfer section 22 Stock side transport section 24 scraping carrier B transport route

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01D 61/00 A01D 57/00

Claims (2)

(57) [Claims] 1. A handling depth transport device comprising a tip-end transport unit and a stocker-side transport unit which are vertically spaced apart from each other, and which tilts forward in the machine-traveling direction with its transport end side as a pivot. In a combine that is tilted in the width direction and mounted on a shaft, a scraping device is arranged in a forwardly inclined manner in front of the handling depth transfer device .
In front of the scraping carrier that scrapes the tip side of the harvested culm above.
Depth of handling is located on the upper side of the tip side of the transport device and in front of it.
Face the upper surface of the scraping device on the right side in the direction of travel of the machine.
Then, carry in the handling depth in parallel with the scraping device in front view of the machine.
While extending integrally with the feeding device,
At the bottom of the transfer area of the tip side transfer section,
Proximity to the stocker side transport area of the scraping device on the right side of the machine
In this way, by continuously connecting the transport start end region of the tip side transport unit inclined in the machine width direction and the transport end region of the scraping transport body, a series of transport paths extending forward of the machine body are formed. Depth transfer device for combine harvesters. 2. A series of transfer areas extending from the scraping transfer body located on the right side in the traveling direction of the machine body to the tip side transfer section of the handling depth transfer device are substantially straight. Item 1. A handling depth transfer device in a combine according to Item 1.