JP2004016111A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester facilitating the maintenance of a reaping device and a reaping pretreatment device. <P>SOLUTION: This combine harvester has the following structure. A transverse transmission cylinder 24 is supported on a pair of left and right support stands 25a and 25b, a reaping support frame 22 is extended forward from the cylinder 24 to support the reaping device 9 for reaping planted grain culms, either one of the support stands 25a and 25b is provided with a turning support 72 functioning to turn the reaping device 9 sideways of the machine body, and a reaping vertical cylinder 26 for vertically moving the reaping device 9 is set up between the reaping support frame 22 and the support stands 25. With this structure, the reaping device 9 can be turned sideways of the machine body, and in this condition, the maintenance of the reaping device 9 can be carried out easily. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an agricultural combine for performing cereal harvesting work in a field.
[0002]
[Prior art]
As shown in FIG. 1, the combine 1 has a traveling device 3 having a pair of left and right traveling crawlers traveling on a soil surface below the body frame 2, and a weeding tool 5 at the front end of the body frame 2. A cutting device 9 including a case 6, a cutting blade 7 for cutting the planted grain culm, etc .; a stock-side transfer device, a tip-side transfer device for nipping and transporting the grain stalk cut by the cutting blade 7 to the rear; A pre-cutting device 10 including a depth adjusting device, a stock transfer device and the like is provided. Above the body frame 2, a threshing device 11 is mounted, and the threshing device 11 has a cereal stalk supply / transport device 12 having a feed chain for taking over and transporting the culm transported from the pre-cutting device 10. Is provided. A grain tank 14 for temporarily storing the grains threshed and sorted by the threshing device 11 is placed on the body frame 2.
[0003]
The threshing device 11 has a rotating handling cylinder, threshes grains from grain culms supplied and conveyed by a feed chain by the handling teeth of the handling cylinder, separates branch shoots, dust, and the like, and provides a shaking provided at the lower portion of the handling cylinder. Grains are sorted by the action of a moving shelf, a Karamin blower, a sieve, or the like, and the sorted grains are temporarily stored in the Glen tank 14.
[0004]
A discharge auger 15 composed of a vertical auger 15a and a horizontal auger 15b is provided at the rear of the Glen tank 14, so that the grains temporarily stored in the Glen tank 14 can be discharged to the outside of the combine 1.
[0005]
The traveling, harvesting, threshing, grain discharging operation, etc. of the combine 1 are performed by an operator who operates the driver's seat 16 on the body frame 2 of the combine 1 by operating the operating device of the driver's seat 16.
[0006]
[Problems to be solved by the invention]
For maintenance of the cutting device 9 and the pre-cutting device 10 including the weeding tool 5, the raising case 6, the cutting blade 7, etc., it was necessary to remove these devices from the combine 1 main body and perform the work. However, the various devices for mowing are made of a combination of relatively complicated parts, and a large amount of labor is required for the work of removing the combine from the main body of the combine 1, so that there are many demands for making the work easy. is there.
Therefore, an object of the present invention is to provide a combine that facilitates maintenance of a reaper and a pre-cutting device.
[0007]
[Means for Solving the Problems]
The above object of the present invention is solved by the following constitution.
According to the first aspect of the present invention, the lateral power transmission tube 24 is supported by a pair of left and right support bases 25a and 25b, and the cutting support frame 22 is extended forward from the horizontal power transmission tube 24 to cut the planted grain culm. In the combine supporting and supporting the device 9, a rotation fulcrum 72 for rotating the reaping device 9 to the side of the body is provided on one of the support frames 25 a and 25 b, and is provided between the reaping support frame 22 and the support frame 25. This is a combine provided with a cutting vertical cylinder 26 for moving the cutting device 9 up and down.
[0008]
According to the first aspect of the present invention, the reaper 9 can be turned to the side of the body without removing the reaping vertical cylinder 26, and the reaper 9 can be turned to the side of the body. Maintenance of the reaper 9 can be easily performed. Further, when rotating the reaper 9 to the side of the machine body, it is only necessary to remove one of the pair of support bases 25a and 25b from the horizontal transmission tube 24.
[0009]
According to the second aspect of the present invention, a reinforcing frame 70 is provided between the lateral transmission cylinder 24 and the mowing support frame 22, and one end of the mowing vertical cylinder 26 whose base is supported by the rotation fulcrum 72 of the mowing device 9 is connected to one end of the mowing vertical cylinder 26. The combine according to claim 1, wherein the combine is attached to the reinforcing frame 70.
[0010]
According to the second aspect of the present invention, in addition to the operation of the first aspect of the invention, the cutting vertical cylinder 26 can be attached to the turning fulcrum 72 side of the cutting device 9 so as to be biased, and the horizontal transmission cylinder is provided. The strength of the mowing support frame 22 and the mowing support frame 22 can be reinforced by mounting the mowing vertical cylinder 26.
[0011]
【The invention's effect】
According to the first aspect of the invention, the maintenance of the reaper 9 can be easily performed in a state where the reaper 9 is rotated to the side of the machine body without removing the reaper upper / lower cylinder 26.
According to the second aspect of the invention, in addition to the effects of the first aspect, the strength of the transmission cylinder 24 and the reaping support frame 22 can be reinforced by mounting the reaping upper and lower cylinders 26.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a combine according to an embodiment of the present invention. FIG. 2 is a side view of a main part of the combine mainly showing a pre-cutting treatment device 10 and a supporting device thereof, and FIG. It is a principal part perspective view of the combine centering on the center, FIG. 4 is a principal part plan view of the combiner centering on the reaping device part, and FIG. 5 is a principal part plan view of the combiner when the reaping device part is opened. FIG. 6 is a front view of the main part of the combine when the mowing device is removed.
[0013]
The combine 1 according to the embodiment of the present invention has a schematic configuration as described with reference to FIG. 1. 17 and the scraping device 4, the stalks are raked into the pre-cutting device 10, the cutting blade 7 is used to cut the vicinity of the root of the cereal culm, and the culled culm is subjected to the pre-cutting treatment by the stock-side transfer device 18 and the tip-side transfer device 19. It is transported into the device 10. These pre-cutting devices 10 are mounted on a cutting frame 21, the cutting frame 21 is mounted on the tip of a cutting support frame 22, a horizontal transmission tube 24 is provided at the base of the cutting support frame 22, and the horizontal transmission tube 24 is connected to the body frame. It is rotatably mounted on a pair of support bases 25 (25a, 25b) provided on two sides. Therefore, the mowing pre-processing device 10 is moved up and down by the mowing vertical cylinder 26 around the horizontal transmission cylinder 24.
[0014]
The starting end of the handling depth adjusting device 27 faces the end of the grain culm conveying path conveyed by the respective conveying devices, and the ending portion of the handling depth adjusting device 27 supplies grain culms to the threshing device 11. Facing the lower part of the starting end of the stock side transfer carrier device 29 to be transferred to the grain stem supply and transfer device 12, and the handling depth adjusting device 27 sets the position where the grain stem is transferred to the stock side transfer device 29 to the grain culm. Of the hull of the threshing apparatus 11 is adjusted by a handling depth adjusting actuator (not shown).
[0015]
Further, not only the handling depth is adjusted by the handling depth adjusting device 27, but also the stock source side transfer device 29 is such that the guide roller 29a of the transfer chain is moved relative to the grain culm supply transfer device 12. By moving so as to separate in the direction of the culm, the handling depth can be adjusted and supplied to the threshing device 11 in cooperation with the handling depth adjusting device 27.
[0016]
The grain culm supply / transportation device 12 includes a main supply / transportation device 32 located at a side portion of the threshing device 11, a start end of the main supply / transportation device 32, and an end side of the stock side transfer / transportation device 29. It is configured separately from the provided auxiliary transport device 33. In this case, the main supply / conveyance device 32 is configured to pinch and convey the cereal stem by the pinching rod 34 and the feed chain 36, and the pinching rod 34 is provided on the upper cover 35 (FIG. 1) of the threshing device 11. The upper cover 35 is retracted from the feed chain 36 by the upward rotation of the upper cover 35. The feed chain 36 is wound around a front passive wheel 39, a rear passive wheel 40, and an intermediate wheel 41 provided before and after a driving wheel support frame 38 in the front-rear direction.
[0017]
The auxiliary transport device 33 further faces the vicinity of the terminal end of the stock-side transfer device 29 and is located in front of the main supply transport device 32 on the same straight line as the main supply transport device 32 in plan view. The transfer device (outside) 43 is in parallel with the main supply transfer device 32 but not on the same straight line, and has a terminal end portion of the auxiliary transfer device (outside) 43 and a start end portion of the main supply transfer device 32. And an auxiliary transport device (inner) 44 that superposes each of them.
[0018]
The auxiliary transport device 33 is configured to have the same transport speed as the stock source transfer device 29 and to change the speed in synchronization with the traveling speed of the combine 1. That is, the rotation transmitted to the pre-cutting device 10 is synchronized (synchronized) with the change in the traveling speed by the traveling device 3, and the stock transfer side transfer device 29 is also synchronized with the rotation transmitted to the pre-cutting device 10 (synchronized). As a result, the grain stalk transport speeds of the pre-cutting treatment device 10, the stock-side transfer device 29, and the auxiliary transport device 33 become substantially the same.
[0019]
The auxiliary transfer device (outer) 43 is provided with a front gear (outer) 46 on the front side of a driving wheel support frame (outer) 45, a rear gear (outer) 47 on the rear side, and a front gear (outer) 46 on the rear side. A chain (outside) 48 is wrapped around the side gear (outside) 47. A front gear (inner) 50 of the auxiliary transfer device (inner) 44 is fixed to an inner portion of a mounting shaft 49 (FIG. 4) of the rear gear (outer) 47, and the front gear (inner) 50 and the front gear are fixed. The chain (inside) 52 is wound around a rear gear (inside) 51 provided behind the (inside) 50 to constitute the auxiliary transfer device (inside) 44.
[0020]
The auxiliary transfer device (outside) 43 is formed long, the auxiliary transfer device (inside) 44 is formed short, and the auxiliary transfer device (inside) 44 is positioned inside the auxiliary transfer device (outside) 43. ) 43 is linearly arranged in front of the main supply / conveyance device 32. The end of the auxiliary transfer device (inner) 44 and the start end of the main supply transfer device 32 are substantially overlapped in a side view.
[0021]
In addition, the operation end area of the end portion of the transport lug 19a of the tip side transfer device 19 and the operation end area of the end portion of the guide roller 29a of the stock side transfer device 29 substantially overlap each other, and The position of the front gear (outside) 46 of the auxiliary transfer device (outside) 43 can be moved up and down so as to come to the position indicated by the solid line in FIG. 3 for the short culm and to the position indicated by the dotted line in FIG.
[0022]
As described above, the grain culm supply / transportation device 12 is divided into a main supply / transportation device 32 and an auxiliary transportation device 33, and the driving wheel support frame 38 of the rear main supply / transportation device 32 has a front end turned around the support frame 25a. The thruster 11 is fixed to the rear end of the support frame 55 supported by the moving shaft 54 and is rotatably provided around the rotating shaft 54 so that the side of the threshing device 11 can be opened.
[0023]
The rotation (working speed) of the harvesting pre-processing device 10 is changed in synchronization with the traveling speed of the combine 1, and the stock transfer side transfer device 29 is also changed in accordance with the speed, and the auxiliary transfer device 33 is adjusted accordingly. The auxiliary transport device 33 is left on the fuselage side, and the main supply transport device 32 is moved so that the side of the threshing device 11 is opened. It is configured to facilitate opening.
[0024]
As shown in FIG. 3 and the like, power is input to the rotation shaft of the rear gear (inner) 51 of the auxiliary transfer device (inner) 44 from the input shaft 62 via a gear group in the gear box 60. An input pulley 64 is provided on an input shaft 62 protruding from the gear box 60. The input pulley 64 is driven by a belt 66 wound around an output pulley 65 of the horizontal transmission cylinder 24.
[0025]
The output pulley 65 is provided coaxially with a cutting unit input pulley 67 provided at one end of the horizontal transmission cylinder 24, and a driving force is transmitted from the gearbox 60 to the cutting unit input pulley 67 in synchronization with the traveling speed. The driving force is transmitted to the auxiliary transport device (inner) 44 and the auxiliary transport device (outer) 43 by the output pulley 65.
[0026]
A reaping support frame 22, which also serves as a support mechanism for the reaper 9 and a transmission mechanism for driving force, is fixed to a central portion of the lateral transmission cylinder 24. Both ends of the horizontal transmission cylinder 24 are rotatably supported by bearings, and one end of the reinforcement frame 70 is fixed to the side surface of the reaping support frame 22. The mowing device 9 can be moved up and down by moving.
[0027]
Since the horizontal transmission cylinder 24 and the mowing support frame 22 form a T-shaped frame, and the T-shaped frame is reinforced by the reinforcing frame 70, the strength of the mowing support frame 22 is improved as compared with the related art. Further, by connecting the cutting upper and lower cylinders 26 to the reinforcing frame 70, the cylinders 26 are arranged on the left side of the machine body, so that the maintenance property is good.
[0028]
Since the mowing vertical cylinder 26 is disposed above the crawler traveling device 3, there is no intrusion of mud and water, and the durability is good.
[0029]
Further, the end of the cutting upper and lower cylinder 26 is fixed to a longitudinal axis (rotation fulcrum) 72 provided on the left support frame 25a in the machine traveling direction supporting the horizontal transmission cylinder 24, and the vertical position of the left support frame 25a is fixed. The upper part of the shaft 72 mounting portion is configured to be separable. The support pedestal 25a is divided into a lower part 25a1 and an upper part 25a2 so as to be separable at flanges 25c1 and 25c2, respectively, and the separable components are fixed by bolts 73.
[0030]
Further, the horizontal transmission cylinder 24 is rotatably supported by the support frames 25a and 25b, but can be separated from the support frames 25a and 25b by removing the plates 25a 'and 25b' provided on the support portions.
[0031]
In the present embodiment, the plate 25b 'is detached from the support pedestal 25b, the horizontal transmission cylinder 24 is rotated about the longitudinal axis 72, and the reaping support frame 22 is rotated to rotate the reaping device 9 by about 90 degrees as shown in FIG. (This is sometimes called "open").
[0032]
That is, in order to open the reaper 9, the plate 25 b ′ is detached, the horizontal transmission tube 24 is separated from the support gantry 25 b, the bolt 73 is removed, and the lower portion 25 a 1 and the upper portion 25 a 2 of the support gantry 25 are connected to the flange 25 c 1. This is performed by separating the portion between the portions 25c2 and rotating the mowing support input frame 22 in the direction of arrow A about the vertical axis 72.
[0033]
Since the vertical axis 72 is supported at both ends of the concave portion provided in the middle part of the left support frame 25a, the upper and lower portions of the vertical axis 72 can be firmly held by the support frame 25a. Since the concave portion is provided in the intermediate portion, the cutting vertical cylinder 26 can be rotated while maintaining sufficient strength.
[0034]
Also, as shown in FIG. 6, a front view of the support portion of the mowing device 9, when the mowing device 9 is detached from the body without opening the mowing device 9, the work is performed by removing the mowing device 9 from the separation surface 25c2 of the support base 25a2. Becomes easier.
[0035]
In addition, since the rotation shaft 54 of the main supply / transport device 32 is fixedly supported on the support frame 25a that supports the vertical axis 72, which is the open rotation axis of the mowing device 9, the rotation fulcrum of the main supply / transport device 32 It can be of sufficient strength.
[0036]
In this way, by supporting both the open rotation fulcrum of the mowing device 9 and the rotation fulcrum of the main supply / conveyance device 32 on the support pedestal 25a, the support pedestal 25a is made of a member having sufficiently high strength. Even if a large load is applied to the member, the rotation of the reaper 9 and the main supply / conveyance device 32 can be performed with stable strength.
[0037]
Further, as shown in the perspective view of FIG. 3, when the reaper 9 is opened (in the direction of arrow A), a twin-synchronous configuration in which the sub-supply / conveyance device (outer) 43 is lowered in the direction of arrow B, the reaper is opened when the reaper is opened. The rotation angle of the reaper 9 can be increased without interference between the reaper 9 and the sub-supply / conveyance device (outside) 43.
[0038]
The twin synchro configuration has a configuration in which a bracket 76 attached to the flange 25c2 of the upper support frame 25a2 of the sub-supply / conveyance device (outside) 43 and the driving wheel frame 45 of the sub-supply / conveyance device (outside) 43 are connected by a wire 77. .
[0039]
The rotating cylinder 42 to which the plate 83 supporting the front gear 50 of the auxiliary transport device (inner) 44 and the rotating shaft 81 of the rear gear 47 of the auxiliary transport device (outer) 43 is fixed. A plate 84 fixed to the side opposite to the plate 83 is provided, and a spring 78 is provided between the tip end of the plate 84 and the body frame 2.
[0040]
With the above arrangement, when the reaper 9 is opened in the direction of arrow A, the plate 84 is rotated in the direction of arrow C against the urging force of the spring 78 together with the movement of the sub-supply / conveyance device (outer) 43 in the direction of arrow B. After the work of opening the mowing device 9 is completed, the biasing force when the mowing device 9 is closed as before is obtained, and the mowing device 9 can be easily returned to the original arrangement position.
[Brief description of the drawings]
FIG. 1 is a side view of a combine according to an embodiment of the present invention.
FIG. 2 is a side view of the combine harvesting pre-processing device of FIG. 1 and its supporting device.
FIG. 3 is a perspective view of a main part of the combine harvester shown in FIG.
FIG. 4 is a plan view of a main part of the combine harvester shown in FIG.
FIG. 5 is a plan view of a main part of the combine shown in FIG. 1 when a reaping device is opened.
FIG. 6 is a front view of a main part of the combine shown in FIG. 1 with a reaper unit removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Combine 2 Body frame 3 Traveling device 4 Raising device 5 Weeding tool 6 Raising case 7 Cutting blade 9 Cutting device 10 Cutting pre-processing device 11 Threshing device 12 Grain stalk supply and transport device 14 Glen tank 15 Discharge auger 15a Vertical auger 15b Horizontal Auger 16 Driver's seat 17 Star wheel 18 Stock-side transfer device 19 Ear-side transfer device 19a Transfer lug 21 Cutting frame 22 Cutting support frame 24 Lateral transmission tube 25a, 25b Support stand 25c Flange (separation surface) 25a ', 25b' Plate 26 Cutting vertical cylinder 27 Handling depth adjusting device 29 Stock side transfer device 29a Guide roller 32 Main supply transfer device 33 Auxiliary transfer device 34 Clamping rod 35 Upper cover 36 Feed chain 38 Movement The support frame 39 front driven wheel 40 the rear driven wheel body 41 intermediate wheel 42 rotates cylinder 43 auxiliary feeder (outer) 44 auxiliary feeder (inside)
45 Wheel support frame (outside) 46 Front gear (outside)
47 Rear gear (outer) 48 Chain (outer)
49 Mounting shaft 50 Front gear (inside)
51 Rear gear (inside) 52 Chain (inside)
54 Rotating shaft 55 Support frame 60 Gear box 62 Input shaft 64 Input pulley 65 Output pulley 66 Belt 67 Cutting part input pulley 70 Reinforcement frame 72 Vertical axis (rotation fulcrum)
73 bolt 76 bracket 77 wire 78 spring 81 rotating shaft 83, 84 plate

Claims (2)

In a combine in which the lateral transmission tube 24 is supported by a pair of left and right support frames 25a, 25b, the reaping support frame 22 is extended forward from the lateral transmission tube 24, and the harvesting device 9 for planting grain culm harvesting is supported. ,
A rotation fulcrum 72 for rotating the reaper 9 to the side of the body is provided on one of the support frames 25a and 25b,
A combine having a cutting vertical cylinder 26 for moving the cutting device 9 up and down between the cutting support frame 22 and the support base 25. A reinforcing frame 70 is provided between the lateral transmission cylinder 24 and the reaping support frame 22, and one end of the cutting vertical cylinder 26 whose base is supported by the rotation fulcrum 72 of the reaper 9 is attached to the reinforcing frame 70. The combine according to claim 1, wherein:

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