JPS6233544Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a self-propelled, self-extracting combine harvester.
This relates to a drive device for a pre-harvesting processing section that pulls up grain culms to be planted in a field and transports them to a threshing section. By arranging it approximately at the center in the direction of movement, the overall width of the drive mechanism can be made narrower, and safety for the power input section is improved.Furthermore, the pre-reaping processing section can be assembled to the machine body side.・It is designed to be extremely easy to disassemble.

Next, an example of the present invention will be explained with reference to the drawings.
In the figure, 1 is a machine body supported by a pair of running crawlers 2, and a threshing section 4 having a feed chain 3 is mounted on the upper surface of the machine body. Reference numeral 5 denotes a reaping pre-processing section located at the front of the machine body 1, and the pre-processing section 5 includes a pair of left and right weeding bodies 6, a pair of grain culm lifting mechanisms 7,
7. It consists of a reaping mechanism 8, a pair of raking mechanisms 9, 9, a stock conveying mechanism 10, a vertical conveying mechanism 11, and a tip conveying mechanism 12, which are attached to a support frame 13 that moves up and down with respect to the machine body 1. ing.

This support frame 13 is constructed as shown in FIG. That is, a hollow cylindrical case 14 extending perpendicular to the traveling direction of the fuselage 1 is used as the base end, and the cylindrical case 14 is rotatably supported on the fuselage 1 by two bearings 15, 15. A flat L-shaped hollow support rod 16 protruding forward and diagonally downward from
A reaping frame 16' that supports the weeding bodies 6, 6, reaping mechanisms 8, raking mechanisms 9, 9, and stock transfer mechanism 10 is attached to the front surface of the reaping frame 16'. The grain culm pulling mechanisms 7, 7 are installed between the tip of the hollow support rod 17 protruding from the hollow support rod 17, the tip of the hollow support rod 18 extending horizontally from the hollow support rod 17, and the tip of the reaping frame 16'. This support frame 13
A hydraulic cylinder 19 is provided between and the fuselage 1,
The hydraulic cylinder 19 is configured to rotate the entire reaping pretreatment section 5 up and down around 14 positions of the cylindrical frame.

Further, a drive shaft 20 is inserted into the proximal cylindrical case 14, and power is transmitted from the drive shaft 20 to the reaping mechanism 8 via shafts 21, 21 in the hollow support rod 16. While the power is transmitted to the stock transfer mechanism 10 via the screw gear 23, the drive shaft 20
Power is transmitted from there to the grain culm lifting mechanisms 7, 7 via shafts 24, 25 in the hollow support rods 17, 18.

The upper end sprocket 28 of the vertical conveyance mechanism 11 is connected to the outer end of the sleeve 26 which is slidably fitted into one end of the proximal cylindrical case 14 via a gear case 27.
is attached to support the upper end of the vertical conveyance mechanism 11, a threaded cylinder 29 fixed to this gear case 27 is provided parallel to the cylindrical case 14, and the end of the threaded shaft 30 screwed into the threaded cylinder 29 is attached to the cylindrical case. The gear case 27 is connected to a motor 31 attached to the other end of the feed chain 14, and the gear case 27 is reciprocated in the axial direction of the cylindrical case 14 by the forward and reverse rotation of the motor 31. The vertical conveyance mechanism 1 is configured so that the length of the grain culm can be adjusted by changing the position, that is, the handling depth in the threshing section can be adjusted depending on the length of the grain culm.
1 receives power from the drive shaft 20 via a hollow shaft 32 that is slidably spline-engaged with the drive shaft 20 and shafts 33, 34, and 35 inside the gear case 27.

The cylindrical case 14 has bearings 15 and 1.
A transmission case 37 having an input shaft 36 between 5 and 5.
is provided to transmit power from the input shaft 36 to the drive shaft 20 via a gear train 39 with a safety clutch 38, and to the input shaft 36, power from an engine 40 mounted on the fuselage 1 is connected to an output shaft 41 on the fuselage 1. Accordingly, a belt transmission mechanism 42 which also serves as a clutch is disposed between the transmission case 37 and one of the bearings 15,
43 to transmit power.

In addition, both the belt transmission mechanisms 42 and 43 include main drive pulleys 44 and 45 on the output shaft 41 and input shaft 36.
It consists of upper driven pulleys 46, 47 and V-belts 48, 49 wound between these pulleys, and an arm 50 protruding from the mission case 37 has a hollow shaft 51 and a shaft 52 inserted into the hollow shaft 51 at the tip.
are provided rotatably, and tension pulleys 53 and 54 are provided at one end of the hollow shaft 51 and the shaft 52, respectively, in contact with both the V-belts 48 and 49, while the hollow shaft 5
1 and the other end of the shaft 52, levers 55, 56 are fixed respectively, and springs 57, 58 are mounted between one end of both the levers 55, 56 and the transmission case 37, so that the tension pulley 53, 54 to V belt 4
8 and 49, and the other ends of both levers 55 and 56 are connected via wires 62 and 63 to operating levers 60 and 61 provided on an operating column 59 of the combine harvester, respectively. By operating 61, the tension in both V-belts 48 and 49 can be loosened simultaneously to cut off power transmission, or one of the V-belts 48 and 49 can be loosened.
It is configured to tension the belt and transmit power to the input shaft 36.

In this configuration, both belt transmission mechanisms 42, 4
If one of 3 is turned on, the power from the engine 40 is transmitted to the drive shaft 20 via the input shaft 36 and the gear train 39.
7. The pre-processing parts 5, such as the reaping mechanism 8, stock conveyance mechanism 10, and vertical conveyance mechanism 11, are driven all at once, and are stopped by turning off both belt transmission mechanisms 42 and 43. The reaping and threshing work is performed by rotating the preprocessing section 5 downward around its proximal cylindrical case 14 and moving the machine forward in a lowered state. This is done with the section 5 rotated upward and raised.

In summary, the present invention provides a combine harvester in which the support frame of the pre-harvesting treatment section, which consists of a cutting body, a grain culm pulling mechanism, a reaping mechanism, a grain culm conveying mechanism, etc., is attached so as to be movable up and down relative to the body of the combine. The base end of the support frame in the reaping pre-processing section is configured as a hollow cylindrical case extending perpendicularly to the traveling direction of the combine, and the cylindrical case is rotated by at least two bearings relative to the body of the combine. A drive shaft for transmitting power to the reaping pre-processing section is inserted into this cylindrical case, and an input shaft is inserted between the two bearings into the cylindrical case. A transmission case having a shaft is provided, a power transmission section from the input shaft to the drive shaft is provided in the mission case, a safety clutch is provided in the middle of the power transmission section, and a safety clutch is provided in the middle of the power transmission section; Since a belt transmission mechanism from the machine body side of the combine to the transmission case is disposed between the case and one of the bearings, the following functions and effects are achieved.

The base end of the support frame in the reaping pre-processing section is configured as a hollow cylindrical case extending perpendicularly to the traveling direction of the combine, and the cylindrical case is rotatable with respect to the body of the combine by at least two bearings. A drive shaft for transmitting power to the reaping pretreatment section is inserted into this cylindrical case, and an input shaft is inserted between the bearings in this cylindrical case. The cylindrical frame in the reaping pre-processing section is connected to the body side of the combine by providing a transmission case with On the other hand, it can be installed and removed using bearings, and the entire pre-reaping treatment section can be assembled before attaching it to the combine. It is extremely easy to disassemble and attach/separate the pre-reaping treatment section to the combine harvester.

By locating the transmission case in the cylindrical case between the two bearings that pivotally support the cylindrical case, the width of the machine is There is no need to increase the width of the machine body due to an increase in the length dimension in the direction, and the width of the machine body can be reduced.Moreover, the belt transmission mechanism from the combine machine body to the transmission case is
By arranging it between the transmission case and one of the bearings, one of the bearings can also be used as a cover for the belt transmission mechanism, thereby improving safety without complicating the belt cover for the belt transmission mechanism. You can improve your sexuality.

A power transmission section to the reaping pre-processing section is provided in the transmission case, a safety clutch is provided in the middle of this power transmission section, and the power is transmitted from the combine harvester to the input shaft in the transmission case by belt transmission. By configuring it to do so, overload in the pre-reaping treatment section can be escaped by disengaging the safety clutch and slipping the belt, so that the pre-reaping treatment section is not damaged due to overload. It is extremely safe as it can reliably prevent this from happening.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the combine, Fig. 2 is a plan view of the combine, Fig. 3 is an enlarged plan view of the preprocessing section, and Fig. 4 is a drive mechanism of the preprocessing section. FIG. 5 is an enlarged cross-sectional view taken from FIG. 4, and FIG. 6 is a partially cutaway plan view of FIG. DESCRIPTION OF SYMBOLS 1... Machine body, 5... Pre-processing part, 6, 6... Grass division body, 7, 7... Grain culm pulling mechanism, 8... Reaping mechanism,
9, 9... Scraping mechanism, 10... Stock transport mechanism, 1
1... Vertical conveyance mechanism, 13... Support frame, 14
...Cylindrical case, 15,15...Bearing, 20...
Drive shaft, 37...Mission case, 36...Input shaft.

Claims (1)

[Scope of utility model registration request] A support frame for a pre-harvesting treatment unit, which comprises a grass body, a culm raising mechanism, a reaping mechanism, and a culm transport mechanism,
In a combine harvester that is attached to a body of the combine harvester so as to be vertically rotatable, a base end of a support frame in the pre-harvesting processing section is configured as a hollow cylindrical case extending perpendicular to the traveling direction of the combine harvester,
a drive device for a pre-mowing processing section in a combine harvester, characterized in that the cylindrical case is rotatably supported by at least two bearings on the body of the combine harvester, a drive shaft for transmitting power to the pre-mowing processing section is inserted into the cylindrical case, a transmission case having an input shaft is provided in the portion between the two bearings, a power transmission section from the input shaft to the drive shaft is provided within the transmission case, a safety clutch is provided midway through the power transmission section, and a belt transmission mechanism for transmitting power from the body of the combine harvester to the input shaft of the transmission case is disposed between the transmission case and one of the bearings.