Combine

Abstract

To provide a combine for exchanging a grain bag by an assistant operator who stores the harvested grain in a hopper and stands on a rear deck, the combine enabling an assistant operator to safely perform an exchange work of the grain bag.SOLUTION: A combine includes: a hopper 5 for storing grain provided on a lateral side of a thresher device 4 on a machine body frame 1; and a rear deck 23 on which a grain bag K attached to a lower part of the hopper 5 is placed and on which an assistant operator can stand. A handle 25 which can be held by the assistant operator who stands on the rear deck 23 is provided in such a manner that a position can be changed in a vertical direction.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a combine harvester equipped with a hopper that temporarily stores harvested grains while traveling through a farm field. [Background technology]

[0002] The combine harvester, as described in JP 2010-35425 A and JP 2016-21964 A, has a pre-harvesting processing device at the front of a body frame that travels on a traveling device, and the stalks harvested by this pre-harvesting processing device are transported to a threshing device where the grains are threshed and stored in a hopper.When the grains have accumulated in the hopper, the grains are transferred to a grain bag, which is replaced with an empty grain bag, and the full grain bag is left in the field and then collected, forming a harvesting operation form. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-35425 A [Patent Document 2] JP 2016-21964 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned combine harvesters, which store harvested grain in a hopper installed on the side of the threshing device, the work of replacing and installing grain bags attached to the outlet of the hopper is performed by an assistant worker standing on the platform below the hopper, but the narrow platform makes it difficult to work stably while driving to harvest.

[0005] To provide a combine harvester that stores harvested grains in a hopper and enables an assistant worker standing on a loading platform to safely replace grain bags. [Means for solving the problem]

[0006] The above object of the present invention can be achieved by the following technical means.

[0007] The invention of claim 1 is a combine harvester having a hopper 5 for storing grains on the side of the threshing device 4 on the body frame 1, a grain bag K attached to the bottom of the hopper 5, and a loading platform 23 on which the grain bag K can be placed and on which an assistant worker can ride, characterized in that a handle 25 to be held by an assistant worker standing on the loading platform 23 is provided so that its position can be changed up and down.

[0008] The invention of claim 2 is a combine harvester as described in claim 1, characterized in that the handle 25 can be lowered to a position that is easy for an assistant worker in a bent-over position to hold in order to attach or detach the grain bag K to the outlet of the hopper 5.

[0009] The invention of claim 3 is the combine harvester according to claim 2, characterized in that the backrest 26 for supporting the back of an assistant worker and the handle 25 are integrally connected. Effect of the Invention

[0010] In the invention of claim 1, when harvesting grain with a combine harvester, in addition to the combine harvester operator, an assistant worker stands on the loading platform 23 to transfer the grains accumulated in the hopper 5 into grain bags K and unload them into the field. The assistant worker stands on the body of the machine and holds the handle 25 at a high position that is easy to hold, and when bending down to replace the grain bags K, he holds the handle 25 which has been moved to a lower position, so that he can always hold the handle 25 while working on the loading platform 23.

[0011] According to the invention of claim 2, when an assistant worker bends down below the hopper 5 to handle the grain bags K, the handle 25 descends, so that the assistant worker can reach the bags safely.

[0012] According to the invention of claim 3, the backrest 26 and the handle 25 can be simultaneously raised and lowered to positions corresponding to the standing and bending postures of the assistant worker, making the operation simple. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a right side view of the combine harvester according to the embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 2 is a partial right side view of the threshing device and hopper. [Diagram 5] FIG. 2 is a partial front view of the threshing device and hopper. [Figure 6] FIG. 2 is a partial rear view of the threshing device and hopper. [Figure 7] FIG. 2 is a partial plan view of the threshing device and hopper. [Figure 8] A right-side cross-sectional view of the sorting section of the threshing device. [Figure 9] FIG. [Figure 10] FIG. 13 is a partial enlarged rear view of the hopper with a sun visor attached thereto. [Figure 11] FIG. 4 is a partially enlarged rear view of the sun visor and the rest arm connected together. [Figure 12] FIG. 11 is a perspective view of another embodiment of a sun visor and a rest arm. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The combine harvester of the present invention will be described below with reference to the attached drawings. As shown in Figures 1 to 3, a traveling device 2 consisting of a pair of left and right crawlers that travel on the soil surface is provided on the underside of the machine frame 1, a pre-harvesting processing device 3 that harvests grain stalks in the field is provided on the front side of the machine frame 1, a threshing device 4 that threshes and sorts the grain is provided on one side of the upper side of the machine frame 1, a hopper 5 that temporarily stores grains is provided on the side of the threshing device 4 on the machine frame 1, and a control unit 6 on which an operator sits is provided in front of the hopper 5.

[0015] In addition, the lower part of the threshing device 4 and the upper part of the hopper 5 are connected by a threshing device 7 that lifts the threshed grains, and the rear of the threshing device 4 is provided with a straw waste cutting device 8 that cuts the threshed straw.

[0016] As shown in Fig. 5, the control section 6 is formed by two front frames (not shown) whose bases are welded to the aircraft frame 1 and extend upward, and two rear frames 10, 11 whose bases are welded to the aircraft frame 1 and extend upward. In order to increase the rigidity of the control section 6, the upper part of the right rear frame 10 and the upper part of the left rear frame 11 are connected by a first connecting frame 12 that extends in the left-right direction. This suppresses deformation of the rear frames 10, 11 due to external forces generated during driving, etc., and makes it possible to prevent movement of the control section 6 in the left-right and front-back directions.

[0017] In addition, in order to increase the rigidity of the threshing device 4, the upper end of the left rear frame 11 is connected to the right frame body 4A of the threshing device 4. This makes it possible to prevent the threshing device 4 from moving left and right and forward and backward due to external forces generated during travel. In addition, as shown in FIG. 5, it is preferable to curve the upper part of the left rear frame 11 from the control unit 6 toward the threshing device 4 and connect the upper end of the left rear frame 11 to the right frame body 4A of the threshing device 4 via a vibration-proof rubber 13. This suppresses the transmission of vibrations generated by the threshing device 4 to the control unit 6, improving the operating environment at the control unit 6.

[0018] As shown in Fig. 8, the threshing device 4 has a threshing chamber 15 at the top where threshing of stalks is performed, and a sorting chamber 16 below the threshing chamber 15 where sorting of threshed grains is performed. A threshing drum (not shown) having a plurality of threshing teeth and extending in the front-rear direction is provided in the threshing chamber 15, and a threshing net 15A is stretched below the threshing drum. A swaying sorting device 17 is provided at the top of the sorting chamber 16, and a winnower 18A that blows air to the sieve at the front of the swaying sorting device 17, a first receiving trough 18B that collects grains that leak from the swaying sorting device 17, and a second receiving trough 18C that collects second-grade grains with stalks and the like attached that leak from the swaying sorting device 17 are provided in this order from the front side at the bottom of the sorting chamber 16.

[0019] In order to improve harvesting efficiency, it is preferable to provide a discharge prevention plate 15B extending downward at the portion of the threshing net 15A located above the second receiving trough 18C. This allows grains blown backward from the oscillating sorting device 17 by the air blown by the winnower 18A to collide with the discharge prevention plate 15B and fall, and to be collected by the second receiving trough 18C, reducing harvest loss.

[0020] As shown in Figures 4 to 6, two funnel sections, one at the front and one at the back, are formed at the bottom of the hopper 5, and a discharge tube 20 is attached to the bottom end of each funnel section. The discharge tube 20 is equipped with a shutter 21 for opening and closing the discharge outlet, and a bag support rod 22 for suspending a grain bag K. When the shutter 21 is operated to open the discharge outlet, the grains stored in the hopper 5 flow down and are filled into the grain bag K suspended by the bag support rod 22. In addition, a loading platform 23 for carrying the grain bag K suspended by the bag support rod 22 is provided below the hopper 5, and the inside of the loading platform 23 is welded to the machine frame 1.

[0021] <Hopper support structure> Next, the support structure of the hopper 5 will be described. As shown in Figs. 4 to 7, in order to increase the rigidity of the hopper 5, the lower part of the front stay 30 attached to the front frame 5A of the hopper 5 by bolts is welded to the first connecting frame 12 forming the steering section 6, and the lower part of the rear stay 31 attached to the rear frame 5B of the hopper 5 by bolts is welded to the support frame 32 whose base is welded to the machine frame 1 and extends upward, and the input part 33 provided on the upper part of the lifting device 7 is connected to the left frame 5C of the hopper 5 by bolts. The input part 33 communicates the lifting device 7 and the hopper 5, and the grains lifted by the lifting device 7 are fed into the hopper 5 through the input part 33. This makes it possible to prevent the hopper 5 from moving left and right and forward and backward due to external forces generated during travel.

[0022] As shown in Figs. 5 and 7, in order to share parts, it is preferable to provide a second connecting frame 40 on the upper side of the first connecting frame 12 of the steering unit 6, which connects the right part of the first connecting frame 12 and the upper part of the left rear frame 11, and weld the lower part of the front stay 30 of the hopper 5 to the second connecting frame 40. This allows the front stay 30 and the rear stay 31 of the hopper 5 to be shared, and reduces the parts management work during manufacturing. In addition, by connecting the right part of the first connecting frame 12 and the upper part of the left rear frame 11 with the second connecting frame 40, the rigidity of the threshing device 4 and the steering unit 6 can be further increased, and the threshing device 4 and the steering unit 6 can be further prevented from moving in the left-right and front-back directions due to external forces generated during traveling. The second connecting frame 40 extends upward from the right end welded to the right part of the first connecting frame 12, and then curves and extends toward the left rear frame 11.

[0023] As shown in Figs. 6 and 7, in order to increase the rigidity of the support frame 32, it is preferable to dispose the upper end of the support frame 32 offset to the left side of the rear stay 31 of the hopper 5 and connect the upper end of the support frame 32 and the right frame 4A of the threshing device 4 with a third connecting frame 41 extending in the left-right direction. This increases the rigidity of the support frame 32 and ensures that the hopper 5 is supported. Furthermore, in this case, as shown in Fig. 6, the position can be easily adjusted by welding the right end of the rear stay 31 of the hopper 5 to the third connecting frame 41 via a connecting plate 42. Note that the support frame 32 and the third connecting frame 41 can be integrally formed to reduce the number of parts.

[0024] As shown in Figs. 4 and 7, a hopper frame 43 extending in the front-rear direction is provided on the right side of the hopper 5 so that an assistant worker who rides on the loading platform 23 and hangs the grain bag K on the bag support rod 22 can safely work. The front end of the hopper frame 43 is rotatably supported by the front stay 30 of the hopper 5, and the rear end of the hopper frame 43 is rotatably supported by the rear stay 31 of the hopper 5, so that the assistant worker can pull out the frame 43 to the right side of the hopper 5 when hanging the grain bag K on the bag support rod 22. The rigidity of the hopper 5 can be further increased by connecting the front stay 30 and the rear stay 31 of the hopper 5 with the hopper frame 43. Although not shown, it is preferable to provide a retractable auxiliary loading platform on the outer side of the loading platform 23 to further facilitate the assistant worker's work of replacing the grain bag K.

[0025] <Pre-harvesting processing device> Next, the pre-harvesting treatment device 3 will be described. As shown in Figures 1 and 2, the pre-harvesting treatment device 3 is composed of a feeder house 50, an auger device 55, a cutting blade device 60, and a raking device 65. Note that a vertical cutting blade device can also be provided on the left side of the auger device 55 to cut tangled grain stalks above the left side of the auger device 55.

[0026] The feeder house 50 is a device that transports grain stalks of rice, wheat, soybeans, buckwheat, etc. transported by the auger device 55 to the threshing device 4, and is located between the auger device 55 and the threshing device 4.

[0027] The auger device 55 is a device that gathers the grain stalks shoveled in by the shoveling device 65 in front of the inlet and transfers them to the feeder house 50. It is positioned in front of the feeder house 50 and is formed with a width approximately the same as the overall width of the general-purpose combine body.

[0028] The auger device 55 is composed of an auger frame 56, a raking auger 57 that gathers the raked-in grain stalks in front of the inlet, etc. The auger frame 56 is formed into a bucket shape by a pair of left and right side plates, a rear plate that connects the rear faces of both side plates, and a bottom plate that connects the undersides of parts of both side plates to the underside of the rear plate. A grass dividing body that divides the grain stalks in the field is provided at the front ends of both side plates, an inlet is formed on the left side of the rear plate to transport the grain stalks to the feeder house 50, and a cutting blade device 60 that cuts the base of the grain stalks is provided at the front end of the bottom plate.

[0029] The cutting blade device 60 is a device that cuts off the base of the grain stalks that have been raked in by the raking device 65, and is provided at the front end of the bottom plate of the auger frame 56 and slopes gently upward from the front to the rear in side view.

[0030] The raking device 65 is a device that raks fallen grain stalks, short grain stalks such as soybeans and buckwheat, and tall grain stalks such as oilseed rape and rape blossoms into the auger device 55, and is formed to have approximately the same width as the overall width of the auger device 55 and is located above the auger device 55.

[0031] 9 is a rear view of the hopper 5 of the combine harvester as seen from the front of the machine body, with a backrest arm 27 pivoted vertically on a pivot 29 to brackets 28 attached to the front and rear sides of the hopper 5. A handle 25 to be held by an assistant worker is provided on the upper side of the backrest arm 27 near the pivot 29, and a backrest roller 26 for supporting the back of the assistant worker is provided at the tip, and when not in use, the backrest arm 27 is raised up and placed against the side of the hopper 5 to prevent it from protruding to the side. When the backrest arm 27 is raised up, the handle 25 is positioned at a height that allows the assistant worker to easily hold it with his arms out in front while standing on the loading platform 23, and when the backrest arm 27 is extended to the side, it supports the back of the assistant worker who is bending over the loading platform 23 to install and remove grain bags K, preventing them from being shaken off the loading platform 23.

[0032] FIG. 10 shows a configuration in which a sun visor 35 is provided on the hopper 5 to cover the head of the assistant worker. As shown in FIG. 11, the sun visor 35 and the backrest arm 27 are connected by vertical supports 38, 39 so that the sun visor 35 can be pulled out to the side along slide guides 36, 37 provided on the side of the hopper 5.

[0033] It is also possible to connect a flexible hose to the discharge tube 20 of the hopper 5 to discharge grains into the grain bag K, to open and close the shutter 21 of the discharge tube 20 with a foot pedal, to adjust the discharge amount by the pressure on the foot pedal, to lock the open state by pressing deeply on the pedal, and to unlock and close the tube by pressing further on. Furthermore, it is also possible to have one or two assistant workers sit on the threshing device 4 and open and close the shutter 21 of the discharge tube 20 manually with a lever or by pressing with foot. The replacement of the grain bag K is performed by another work vehicle mounted on the loading platform 23.

[0034] FIG. 12 shows a configuration in which the sun visor 35 and the backrest roller 26 wound in a roll on a drawer frame 45 are pulled out onto the loading platform 23, and the rolled up sun visor 35 is unfolded for use as required.

[0035] <Combine Harvester Reference Information> Combine harvesters use diesel engines, which require exhaust gas purification devices. These exhaust gas purification devices collect particulate matter in the exhaust gas with a filter, so the accumulated particulate matter must be incinerated to regenerate the filter. However, this exhaust gas purification device regeneration process stops the machine and heats the engine to high temperatures, so the operator of the combine harvester must be informed of this. For this reason, an engine regeneration indicator lamp is provided near the operator's seat, which turns off when regeneration is not required and flashes when regeneration is required, and when the engine reaches its limit without regeneration, the engine stops and harvesting cannot be performed. For this reason, if the operator activates the parking brake and stops the machine, the engine can be started and the exhaust gas purification device can be regenerated by pressing the regeneration button for a long time, allowing even operators who are inexperienced in operating combine harvesters to operate safely. [Explanation of symbols]

[0036] 1 Aircraft frame 4. Threshing equipment 5. Hopper 23 Cargo Bed 25 Toride 26 Backrest

Claims

1. This combine harvester has a hopper (5) for storing grains on the side of a threshing device (4) on a body frame (1), a grain bag (K) attached to the bottom of the hopper (5), and a loading platform (23) on which the grain bag (K) is placed and on which an assistant worker can ride, and is characterized in that a handle (25) to be held by an assistant worker standing on the loading platform (23) is provided so that its position can be changed up and down.

2. 2. A combine harvester as claimed in claim 1, characterized in that the handle (25) can be lowered to a position that is easy for an assistant worker in a crouched position to hold in order to attach or detach a grain bag (K) to or from the outlet of the hopper (5).

3. 3. The combine harvester according to claim 2, wherein a backrest (26) for supporting the back of an assistant worker and a handle (25) are integrally connected.

Images