JPH1175484A - Pretreating apparatus in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pretreating apparatus in a combine harvester capable of smoothly carrying out taking over feed of reaped grain culms by integrally extending raking carrying body until the upper position of a raking device. SOLUTION: Driving force is branched and transmitted to a raking device located on left outermost side in the advancing direction of a machine body through a transmission pipe 25 crossing over the upper part of carrying area of a carrying part on the ear tip side of a threshing depth carrying device 10 and clamping rails 31 and 33 which face to each carrying area of a carrying part 20 on ear tip side and carrying part on the plant foot side are each supported through a detachable supporting member 29 in a transmission gear case part 28 provided in mid-course of the transmission pipe 25. The ear tip sensor 35 for detecting presence of reaped grain culms in the state faced on the inside of the carrying area of carrying part on the ear tip side is detachably attached to the supporting member 29.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment device for transporting cereal stems caused by a cereal stem raising device from a raking device to a threshing unit, and more particularly to a pretreatment device above a raking device. The present invention relates to a pre-processing device for a combine that can extend a scraping carrier integrally and smoothly carry out harvested grain culm.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a harvesting and threshing operation of a combine is carried out by using a grain stem raising device a, a cutting blade device b, a scraping device c and a handling device at a front portion of an airframe provided with a crawler traveling device. A pre-processing unit e equipped with a depth transfer device d is erected, and during traveling of the machine body, the root of the cereal stem caused by the cereal stem raising device a is cut by the cutting blade device b, and then the cut grain is cut. The culm is transferred from the scraping device c to the grain culm supply chain f via the handling depth conveying device d, and the harvested grain culm is supplied to the subsequent threshing unit.

[0003] Of the constituent devices of the pre-processing unit,
The handling depth transport device d that automatically adjusts the handling depth according to the culm length of the harvested grain culm and continuously transfers the spout is provided along a tip-side transport portion h formed by winding a transport tine g and a guide rail (not shown). The stock-side transport sections j formed by winding the transport chain i are arranged side by side in the vertical direction, and the transport area on the right side in the plan view of FIG. It is arranged in an inclined manner toward, and the vertical movement of the handling depth transport device d is performed by automatic adjustment of the handling depth according to the culm length of the harvested grain culm, via the transport chain k of the scraping device c. The root side of the harvested grain culm to be transported is the transport starting end position X of the handling depth transport device d
When the harvested grain culm is conveyed, the root side of the harvested grain culm is pinched and transferred by the transport chain i of the root side transport section j, and the spike side of the harvested grain culm is moved to the transport tine of the ear tip side transport section h. g, and during the transport of the harvested culm, the harvested culm is transformed into an inclined posture gradually approaching a horizontal state between the base of the stock and the tip side, and is then harvested on the subsequent culm supply chain f. The culm is to be transferred.

However, in the conventional transfer configuration from the scraping device c to the handling depth transfer device d, the spike tip side of the harvested grain culm is transferred from the scraping device c to the handling depth transfer device d. Since the raking carriers m and n are fixed independently of the handling depth transporting device d, the positional relationship between the tip of the harvested grain culm and the raking carriers m and n changes depending on the length of the culm length. Conveyance disturbance due to a change in the posture of the culm is likely to occur, and in order to eliminate this, a plurality of stages (m1, m2, n1, n2) of squeezing conveyance bodies are provided to secure the squeezing operation following the culm length. In this case, there is a disadvantage that the weight of the entire pre-processing section is inevitably increased, and the manufacturing cost is increased due to an increase in the number of components.

In order to solve this problem, there has been proposed a construction in which the tip-side transport section h and the stock-side transport section j on the transport start end side of the above-described handling depth transport apparatus d are directly extended forward. When extending while maintaining a required vertical distance between the h and the stock side transporting section j, there is a problem that it is not possible to appropriately cope with a cut culm having a short culm length.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned situation to solve the conventional problems, and an object of the present invention is to remove a scraped body as in the prior art. By moving the raking carrier up and down together with the handling depth transport device body that moves up and down by adjusting the handling depth without the need for complicated arrangements arranged in multiple stages, the culm is pulled out to prevent pulling out of the culm and disturbing transport, etc. While being able to smoothly transfer while maintaining the tip side of the grain culm in a stable culm posture, a clamping rail facing each transport area of the tip side transport section and the stock side transport section of the handling depth transport device, The spike sensor that detects the presence or absence of a harvested grain culm in the conveying area of the spike-side conveying unit is raked and conveyed without separately preparing a dedicated support pipe that is bent across the conveying path of the handling depth conveying device. Transmission gear case of transmission pipe that supplies driving force to the body Can be detachably attached by using, it is intended to provide a pre-processing device in the combine that can improve the workability of the exploded and adjustment work.

[0007]

In order to solve the above-mentioned problems, a first technical means adopted by the present invention is to dispose a tip-side transport unit and a stock-source-side transport unit in a vertically spaced position. A plurality of scraping devices for scraping the culm portion of the harvested grain culm are arranged side by side in the machine width direction in front of the handling depth transfer device, and the scraping device located on the outermost left side in the machine advancing direction among the scraping devices. Facing the upper surface of the harvesting device, and a combine that integrally extends a raking carrier that rakes the tip side of the harvested grain culm, and is supplied to the stock-side transport section of the handling depth transport device. The driving force is branched and transmitted to the raking transporting body facing the upper surface of the leftmost outermost raking device via a transmission pipe straddling the transport area above the tip-side transporting section, and is provided in the middle of the transmission pipe. Nipping rails that face the transport areas of the tip-side transport section and the stock-side transport section in the transmission gear case section It is characterized in that it is supported via a detachable support member, and as a second technical means, the support member detects the presence or absence of a harvested grain culm facing the transport area of the tip side transport section. The tip sensor is detachably attached.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a triple-harvest combine, in which a pretreatment device 4 is erected at a front portion of an airframe 3 having a crawler traveling device 2, and a grain stalk is raised by the pretreatment device 4. The device 5 is provided, and dividers 7, 7,... Are provided at the leading ends of the preprocessing unit frames 6, 6,.

A reciprocating type cutting blade device 8 is disposed on the rear lower surface of the pretreatment unit frames 6, 6,..., And raises the cereal culm weeded by the dividers 7, 7,. Device 5
After raising in the, the cutting root of the grain stem is cut by the cutting blade device 8,
Next, the harvested grain culm is transferred to the grain culm supply chain 11 via the raking devices 9a, 9b, 9c and the handling depth transport device 10 which are juxtaposed with the pre-processing unit frames 6, 6,. Are supplied to a threshing unit (not shown).

The scraping devices 9a, 9b, 9c are connected to the star wheels 12, 1 mounted on the pre-processing unit frames 6, 6,.
Are provided at predetermined intervals between a drive pulley 13 which is supported coaxially with the driven pulley 13 and a driven pulley 14 which is positioned and supported in front of the driven pulley 13. The transport chains 17a, 17 which are wound coaxially below the drive pulley 13 while winding the transport belt 16
b is extended to the transfer start end position X of the handling depth transfer device 10,
The spike side and the root side of the harvested grain culm cut by the cutting blade device 8 are transferred to the handling depth transport device 10 via the transport belt 16 and the transport chains 17a and 17b.

Further, the handling depth transport device 10 follows a tip side transport portion 20 formed by winding a transport tine 18 around a belt body 19 that is inclined at a predetermined interval, and a holding rail 33 described later. The stock-side transfer units 22 formed by winding the transfer chain 21 are vertically spaced apart from each other and are arranged side by side, and the vertical rotation fulcrum is the rotation base of the transmission pipe 23 located at the transfer end side. At the end, an axle structure is provided that is inclined forward in the traveling direction of the fuselage 3 and inclined in the width direction of the fuselage. A scraping transporting body 24 facing the upper surface of the apparatus 9a and being parallel thereto is located above the tip-side transporting section 20 and is integrally extended therefrom, and is transported by the tip-side transporting section 20 inclined in the machine body width direction. Connection between the start end area and the transfer end area of the scraping transfer body 24 , A series of transport path B are formed to form a transport zone of a substantially straight line toward the body 3 forwardly.

Further, the central and right rake devices 9b,
As shown in FIG. 3 to FIG. 5, the scraping transport body 24 ′ which holds the same forward tilting posture in the machine body traveling direction in side view as shown in FIGS. The driving force, which is provided at the distal end of the transmission pipe 25 and is supplied from the transmission pipe 23 to the stock-side transport unit 22 of the handling-depth transport device 10, is transmitted through a transmission shaft 26 inserted into the transmission pipe 25. It is configured to branch and supply to the transporting body 24 ′.

The transmission pipe 25 is connected to the transmission gear case 2 by connecting the plurality of hollow pipes 25a, 25b, 25c.
7 and 28, the hollow pipe 25 is formed in a curved shape that straddles above the handling depth transfer device 10.
A mounting bracket 30 in which a downwardly extending pipe-shaped support member 29 is integrally welded is detachably screwed to a side surface of a transmission gear case 28 provided between b and 25c. In the middle of the lower end side of the support member 29, a holding rail 31 facing a transfer area formed by the transfer tines 18 of the tip-side transfer unit 20 is mounted via an extension bracket 32, The holding rail 33 facing the transfer area formed by the transfer chain 21 of the transfer section 22 is supported by the support member 29.
Are supported by a support mechanism 34 provided at the lowermost end of the camera.

Further, a tip sensor 35 for detecting the presence or absence of a harvested grain culm facing the inside of the transport area of the tip side transport section 20 is attached to the mounting bracket 30 through a mounting knob 35 'so as to be adjustable in position and detachable. When one or both of the upper and lower detection rods 35a, 35b forming the same abut on the tip of the harvested grain culm, the culm length of the harvested grain culm is detected, and the handling depth transport device 10 It is configured to automatically adjust the handling depth of the.

Since the present invention is configured as described above,
When cutting and threshing operations are performed, the culms culled by each divider 7 are raised by the cereal stalk raising device 5 and the cutting blade device 8 is used to cut the root of the cereal culm. The harvested grain culm is handed over to the grain culm supply chain 11 via the handling depth transfer device 10 and is supplied to a threshing unit (not shown). In such grain culm cutting and threshing operations, the scraping devices 9a to 9c are used. The harvested grain culm that has been scraped is conveyed in the direction indicated by the thick arrow in FIG. 2 with the spike tip side and the root side supported by the scraping tine 15 and the transfer chains 17a and 17b, respectively. Then, while the stock root side is held between the transport chains 17a and 17b, the tip side of the harvested grain culm is moved into each of the scraped transport bodies 24, 24.
′, At this time, the raked transfer bodies 24 and 24 ′ are adjusted by the handling depth adjustment of the handling device 10, which is linked to the detection of the culm length by the tip sensor 35.
It moves up and down integrally and is set in advance to a tip position corresponding to the length of the culm length of the harvested grain culm, and the tip side of the harvested grain culm can be held at a transport position suitable for the culm length.

Next, the harvested cereal culm that has joined at the transport start end position X of the handling depth transport device 10 is moved from the tip side to the tip side transport unit 20.
Is transferred to the transfer chain 21 of the stock-side transfer unit 2 and the harvested culm gradually approaches a horizontal state between the stock side and the tip side during the transfer. The cut culm is transferred to the subsequent culm supply chain 11 while being transformed into the inclined posture.

Accordingly, the scraping transport bodies 24 and 24 'move up and down integrally with the vertical movement of the handling depth transport device 10 in the handling depth adjustment of the handling depth transport device 10, so that the tip side of It does not require a complicated structure in which the scraping conveyance body is arranged in a plurality of stages, prevents the pulling out of the culm, prevents the turbulence of the conveyance, etc., and smoothly transfers the harvested corn culm while maintaining the tip side of the harvested grain culm in a stable culm posture. be able to.

In the operation of transporting the harvested culm in the pretreatment device 4, in the present invention, in particular, the tip-side transport unit 20 is used.
Rail 3 facing each transport area of the stock-side transport section 22
1 and 33 are respectively supported on a transmission gear case 28 provided in the middle of the transmission pipe 25 via a support member 29, so that a dedicated support bent over the transport path of the handling depth transport device 10 is provided. Without preparing a separate pipe,
Each of the holding rails 31 and 33 can be detachably mounted, and the workability of disassembly and assembly and adjustment work can be improved.

The tip-side transport unit 2 is provided on the support member 29.
Since the tip sensor 35 for detecting the presence or absence of a harvested grain culm facing the inside of the transport area of No. 0 is detachably attached, the tip sensor 35 can be attached using the support member 29 that supports the sandwiching rails 31 and 33 as it is. The configuration around the transport path can be simplified.

[0020]

In short, according to the present invention, the culm portion of the harvested grain culm is squeezed in front of a handling depth conveying device in which the tip side conveying section and the stock side conveying section are juxtaposed in a vertical position. A plurality of raking devices are juxtaposed in the machine width direction, and the raking devices facing the upper surface of the raking device located on the outermost left side in the advancing direction of the fuselage among the raking devices and raking the tip side of the harvested grain culm. This is a combine in which a scraping conveyance body is integrally extended, and the driving force supplied to the stock-side conveyance unit of the above-described handling depth conveyance device is controlled by a scraping device that faces the upper surface of the leftmost outermost scraping device. The branch is transmitted to the carrier via a transmission pipe that straddles the upper part of the transfer area of the head-side transfer part, and the transmission gear case part provided in the middle of the transmission pipe includes a head-side transfer part and a stock-side transfer part. The holding rails facing the transfer area are supported via detachable support members. From the holding rail of the transport unit which forms a threshing depth conveying device,
Detachable mounting using the transmission gear case part of the transmission pipe that supplies the driving force to the squeezing conveyance body without separately preparing a dedicated support pipe bent across the conveyance path of the handling depth conveyance device Thus, the workability of disassembly and assembly and adjustment work can be improved. In addition, since the tip sensor for detecting the presence or absence of a harvested grain culm facing the inside of the transport area of the tip side transport unit is detachably attached to the support member, a tip sensor for detecting the presence or absence of a harvested grain culm is provided. , Without separately preparing a dedicated support pipe curved across the handling depth transfer path, without separately preparing a dedicated support pipe curved across the transfer path of the handling depth transfer device, It can be installed using the support member that supports the holding rail as it is,
The configuration around the tip-side transport path can be simplified, and the number of parts and the weight can be reduced. And so forth, which are useful new effects.

[Brief description of the drawings]

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

FIG. 2 is a main part plan view showing a grain culm transport path in a pretreatment unit.

FIG. 3 is a main part plan view showing an arrangement of a handling depth transfer device and a scraping transfer body.

FIG. 4 is a side view of a main part showing a support member attached to a transmission gear case, and a holding state attached to the holding member and a tip sensor.

FIG. 5 is an enlarged view of a main part showing a mounting state of a mounting bracket to a transmission gear case.

FIG. 6 is a main part plan view showing a conventional cereal culm transport path in the pretreatment device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Combine 3 Body 9a Raising device 9b Raising device 9c Raising device 10 Handling depth transport device 20 Ear side transport portion 22 Stock side transport portion 24 Raised transport body 25 Transmission pipe 28 Transmission gear case 29 Supporting member 31 Holding rail 33 Holding rail 35 Head sensor

Claims (2)

[Claims] 1. A plurality of scraping devices for scraping a culm portion of a harvested grain culm in front of a handling depth transport device in which a tip side transport portion and a stock side transport portion are vertically spaced apart and arranged side by side. A raking carrier that is juxtaposed in the width direction and faces the upper surface of the raking device located on the leftmost side in the advancing direction of the machine among the raking devices, and rakes the spike tip side of the harvested grain culm integrally. An extending combine, wherein the driving force supplied to the stock-side transport unit of the above-described handling depth transport device is transferred to the tip-side transport unit facing the top surface of the left-most outermost scraper by a tip-side transport. Branch transmission via a transmission pipe that straddles the upper part of the transfer area, and a holding rail facing each transfer area of the tip-side transfer part and the stock-side transfer part in a transmission gear case part provided in the middle part of the transmission pipe. Combination characterized in that each is supported via a detachable support member Pre-processing equipment in the factory. 2. The spout sensor according to claim 1, wherein a spike sensor for detecting the presence or absence of a harvested grain culm facing the inside of the conveyance area of the spike side conveyance section is detachably attached to the support member. Pre-processing equipment in combine.