JPH0521626U - Grain transfer device for combine harvester - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention prevents the ears from being delayed in transportation, hanging or being entangled during lateral feeding when the harvested culms are long culms. [Structure] A pretreatment device including a mowing device 3 and a grain culm transporting device 5 is attached to a front part of a machine body on which the threshing device 1 is mounted, and the mowing device 3 is slid backward from a grass body 6 and its rear part. Harvesting machine composed of a grain culm raising body 7 that has risen to the side, a cutting blade, and a horizontal conveying device 17 including a plurality of horizontal feed bands that horizontally feed the cut grain culm toward the conveyance start end of the grain culm conveying device 5. A grain culm transfer device in a combine, in which an upper horizontal feed band of the horizontal conveyance device 17 is supported so as to be vertically adjustable according to the culm length of the cut grain culm.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is to raise a grain culm planted in a field, mow it, laterally feed the trimmed grain culm, and feed the grain culm to a threshing device by a grain culm transporting device. The present invention relates to a transfer device.

[0002]

[Prior Art]

 Conventionally, a mowing device is provided at the front of the machine body, a grain culm raising body and a cutting blade are arranged at the back of the grass body of the reaping device, and the grain culm raised by the grain culm raising body is cut by the cutting blade, This is horizontally fed by a horizontal transport device consisting of a plurality of horizontal feed bands vertically spaced, and then transferred to a grain culm transport device that also functions as a handling depth adjusting device, and is transported by the grain culm transport device. A combine harvester in which the sent grain culms are threshed by a threshing device is already known.

[0003]

[Problems to be solved by the device]

 In the known combine harvester, the horizontal feed belts of the horizontal conveyors were all configured to rotate at a fixed position.Therefore, when the grain culm is long culm, the ear side is curved and a transfer delay occurs, causing lodging. In the case of a flexible grain culm, the ear side hangs down, and in any case, the transfer to the grain culm transport device becomes unsuccessful, and the ears side is delayed in transportation, and there are many broke and pulling of culm during threshing. However, there were problems such as clogging at the transfer section.

[0004]

[Means for Solving the Problems]

 According to the present invention, a pretreatment device consisting of a mowing device and a grain culm transporting device is attached to the front part of a machine base equipped with a threshing device, and the mowing device is installed diagonally rearward from a grass body and its rear part. A harvester composed of a raised grain culm raising body, a cutting blade, and a horizontal conveying device composed of a plurality of horizontal feed bands that horizontally feed the cut grain culm toward the starting end of the grain culm conveying device. If the grain culm is a long culm by supporting the upper transverse feed band of the horizontal conveyor described above so that it can be adjusted vertically depending on the culm length of the harvested grain culm, move the upper horizontal feed band upwards, If the culm has a normal culm length or a short culm, it is possible to move the culm downward to solve the above problems.

[0005]

【Example】

 The present invention will be described in more detail with reference to the embodiments shown in the drawings. A cabin in which a threshing device 1 is mounted on one side of a machine base having a traveling device, and on the other side, an operation panel and a driver's seat are sequentially surrounded from the front. 2. A grain tank and an engine are provided, and in front of the threshing device 1, while the grain harvesting device 3 and the harvested grain culm are sandwiched and transported, the grain depth is adjusted and the grain culm conveying device 5 is supplied to the threshing device 1. The cutting device 3 comprises a cutting blade 4, a weeding body 6 ..., a grain culm raising body 7 ..., a star wheel-shaped scraping wheel 8 ... 9, stock source take-in chain 10, stem part take-in belt belt 11, ear side take-in chain 12 with tines, and stock-source traverse chain 13 with transfer end bent backwards From the middle horizontal feed chain 15 and the upper horizontal feed chain 16 with tines The grain culm transporting device 5 is composed of a stock holding device 5a and a spike-side transporting device 5b with guide rails spaced from each other on the transporting surface. The handle depth is adjusted by tilting up and down around the rear part, and it automatically tilts up and down according to the detection result of the culm length detector (not shown).

Then, the stock feed transverse feed chain 13 of the transverse conveying device 17 is driven by a shaft 20 standing up from a gear case 18, and an upper shaft 21 for driving the middle and upper transverse feed chains 15, 16 is It is tilted rearward with respect to the shaft 12a of the side scraping chain 12 and is driven by the shaft 20 via a universal joint 22, and the upper shaft 21 is hung by a hexagonal shaft (or spline shaft) 23 and an upper transverse feed chain 16. The sprocket shaft 24 is fixed to the lower end of the sprocket, and is constituted by a cylindrical shaft 25 in which the hexagonal shaft 23 is fitted in an inner hexagonal hole (or inner peripheral spline). The cylindrical cover 26 fixed on the case 15a of No. 15 has a cylindrical cover 27 protruding from the lower surface of the case 16a of the upper feed chain 16 that can be moved up and down. It is fitted. Further, the adjustment plate 28 fixed and raised on the case 16a of the upper transverse feed chain 16 has a vertically long hole, and is hung from a transmission case 30 mounted on the upper part of the grain culm raising body 7. It is fastened to the hanging plate 32 by a bolt 33 so that it can be adjusted up and down.

As shown in FIG. 2 and FIG. 3, the grain culm raising body 7 includes a large number of raising claws 37, which are provided on a drive sprocket 36 axially supported on an upper portion and a rolling wheel 34 axially supported on a lower portion in a raising case 35. It is configured by tensioning a chain 38 having, and the pull-up claw 37 stands up while rotating at the lower part, and the shoe of the base is slidably contacting the guide rail 39 on the side facing the pull-up path. The guide rail 39 rises while maintaining a substantially horizontal protruding posture, and the guide rail 39 is composed of a lower fixed rail 39a and a movable rail 39b whose lower portion overlaps with the guide rail 39, and a plate 40 projecting from the side surface of the movable rail 39b. Is fixed to a rod 44 which is loosely fitted in the holes of the upper and lower receiving plates 41 and 42, and a compression spring 43 is interposed between the upper receiving plate 42 and the plate 40 to urge the rod 44 downward, and the upper end of the rod 44 is transmitted. Case 30 Is connected to one end of a wire 47 which is rotatably supported by a bracket erected on the bracket and a bracket erected on the case of the middle transverse feed chain 16 and hung on the pulleys 45 and 46, and the other end is connected to the upper cylindrical shaft 25. It is connected to a connecting plate 48 protruding from the rear surface.

[0008] In the above combine, when cutting short culms or standard culms, lowering the upper horizontal feed chain 16 causes the grain culms that have been cut and scraped into the middle and horizontal sections of the root and middle sections. It is fed laterally by the feed claws of the feed chain 15 and the stock horizontal feed chain 13, and is conveyed laterally while the proper position is locked by the feed claw of the lower horizontal feed chain 16 on the ear side. At this time, since the rear end of the wire 47 descends and loosens, the movable rail 39b of the grain culm raising body 7 also descends by approximately the same amount, and thereby the grain side is not squeezed and shredded. When cutting the long culm, if the upper transverse feed chain 16 is raised to the position shown by the chain line in FIG. 1 according to the culm length, the movable rail 39b also rises following the height suitable for the long culm. Therefore, the spikes of the long culm are raised to a high position, and in that state, the conveying claws of the upper transverse feed chain 16 take over and transversely feed. Further, if every other one of the conveying pawls of the middle side traverse chain 15 and the upper side traverse chain 16 is made long and short, it is possible to carry out high efficiency cutting and to feed sideways without difficulty when the amount of grain is large.

[0009] Even if the grain culms thus fed laterally are long culms, the ears do not hang down or get entangled. Therefore, the culms are transferred to the ears-side carrier 5b of the grain culm carrier 5 in an orderly manner, The culm length detector (not shown) detects the culm length in the process of being conveyed backward, and the grain culm carrier device 5 tilts up and down based on the detected value, and the handling depth is automatically adjusted to achieve the proper handling depth. In the state, the root part is taken over by the feed chain of the threshing device 1 and the starting ends of the pinching rails, and the ear side is inserted into the handling room from the supply port for threshing.

FIG. 5 shows another embodiment of the present invention, in which a receiving member 50 having a screw hole is attached to the upper surface of the case of the middle horizontal feed chain 15 and the lower surface of the case of the upper horizontal feed chain 16 is The lower part is equipped with a small motor 52 for rotating and driving a screw rod 51 screwed into the screw hole of the receiving metal 50, and the tip position detector 53 similar to the culm length detector of the handling depth adjusting device is provided on the upper surface. Yes, when the tip position detector 53 issues a short culm detection signal, the small motor 52 rotates in a direction to lower the upper transverse feed chain 16, and when it detects the tip position, it stops and issues a long culm detection signal. Then, the small motor 52 rotates in the reverse direction to raise the upper stage lateral feed chain 16 and the small motor 52 for detecting the tip ends. Further, the detection signal of the tip position detector 53 is also inputted to the handling depth automatic adjusting circuit, so that in the grain culm conveying device 5, the tip of the ears side conveying body 5b is separated from the upper transverse feed chain 16 by a constant interval H. The handling depth is adjusted to face the low position.

FIG. 6 shows a further embodiment, in which the middle-stage transverse feed chain 15 in the above-mentioned embodiment is omitted, and the upper-stage transverse feed chain 16 can be greatly vertically moved and adjusted to be extremely short. It is now possible to laterally feed the proper position on the ear side even from a grain culm to a significantly long culm.

[0012]

[Effect of the device]

 According to the present invention, a pretreatment device comprising a mowing device 3 and a grain culm transporting device 5 is mounted on the front part of a machine frame on which the threshing device 1 is mounted, and the mowing device 3 is slanted from the grass body 6 and its rear part. For this purpose, the grain culm raising body 7 that has stood up to the rear, a cutting blade, and a horizontal conveying device 17 including a plurality of horizontal feed bands that horizontally feed the cut grain culm toward the starting end of the grain culm conveying device 5 are formed. In the harvester, since the upper horizontal feed band of the horizontal transfer device 17 is supported so as to be vertically adjustable according to the culm length of the cut culm, the cut culm having a standard length or less is not tangled or entangled. It is possible to transport the grains to the grain culm transporting device 5 in an orderly manner, and to raise the upper horizontal feed zone for long culms, it is possible to laterally transport the proper position on the tip side. , Orderly feed the grains without delaying the tips, sagging or entanglement It can be passed to the transport device 5.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a front portion of a combine.

FIG. 2 is a front view of the grain culm raising body with a front cover removed.

FIG. 3 is a transverse sectional view of the same.

FIG. 4 is a plan view of a front portion of the combine.

FIG. 5 is a vertical cross-sectional view of another embodiment.

FIG. 6 is a vertical cross-sectional view of still another embodiment.

[Figure 7]

[Explanation of symbols]

 1 Threshing device 3 Harvesting device 5 Grain culm transporting device 7 Grain culm raiser 13 Stock source transverse feed chain 15 Middle stage transverse feed chain 16 Upper stage transverse feed chain 17 Sideways conveying device 21 Upper shaft 37 Pulling claw 39 Guide rail 47 Wire

[Procedure amendment]

[Submission date] September 9, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a front portion of a combine.

FIG. 2 is a front view of the grain culm raising body with a front cover removed.

FIG. 3 is a transverse sectional view of the same.

FIG. 4 is a plan view of a front portion of the combine.

FIG. 5 is a vertical cross-sectional view of another embodiment.

FIG. 6 is a vertical cross-sectional view of still another embodiment.

[Explanation of Codes] 1 Threshing device 3 Mowing device 5 Grain culvert transporting device 7 Grain culvert raising device 13 Stock source transverse feed chain 15 Middle stage transverse feed chain 16 Upper stage transverse feed chain 17 Sideways conveying device 21 Upper shaft 37 Pulling claw 39 Guide rail 47 wires

Claims (1)

[Scope of utility model registration request] 1. A pretreatment device comprising a harvesting device 3 and a grain culm transporting device 5 is attached to a front part of a machine platform on which the threshing device 1 is mounted, and the harvesting device 3 is provided from a grass body 6 and its rear part. It is composed of a grain culm raising body 7 that has risen diagonally rearward, a cutting blade, and a horizontal conveying device 17 including a plurality of horizontal feed bands that horizontally feed the cut grain culm toward the conveyance start end of the grain culm conveying device 5. A grain harvester transfer device in a combine, wherein the harvester is configured to support an upper horizontal feed band of the horizontal transport device 17 so as to be vertically adjustable according to the culm length of the harvested grain culm.