CN115529931A - Harvesting device and harvester - Google Patents

Abstract

The invention provides a harvesting device and a harvester capable of restraining the enlargement of a driving part. The harvesting device (200) is disposed on the front side of the harvester (100) in the traveling direction. The harvesting device (200) is provided with a cutting part (16), a conveying device (14), a driving part (18), a No. 1 supporting member (260) and a supporting frame (13). The cutting section (16) has a rotary blade (241). The rotating blade (241) cuts the stem of the crop by rotation. The conveying device (14) is disposed above the cutting section (16). The conveying device (14) conveys the crop whose stem is cut by the rotating blade (241). The drive unit (18) drives the cutting unit (16) and the transport device (14). The 1 st support member (260) supports the end portion of the cut-off portion (16) on the front side in the direction of travel. The support frame (13) supports the conveyor (14) and supports the 1 st support member (260). The rear end of the cutting section (16) in the advancing direction is supported by a drive section (18).

Description

Harvesting device and harvester

Technical Field

The invention relates to a harvesting device and a harvester.

Background

A harvester that harvests a crop while traveling in a traveling direction is known (for example, see patent document 1). Patent document 1 discloses a corn harvester. The corn harvester of patent document 1 includes a pre-harvesting treatment device. The corn harvester performs a corn harvesting operation by driving the traveling machine body in a state where the pre-harvesting treatment device is set to a lowered operation posture. Specifically, corn, which is a part of a corn plant where seeds are connected in a rod-like manner and clustered, is harvested.

The pre-harvest treatment apparatus of patent document 1 includes a horizontal conveying auger, a harvested material locking and conveying device, a harvesting roller, and a drive box. The drive box drives the reaping object clamping and conveying device and the reaping roller. The harvesting roller is arranged below the harvested material clamping and conveying device. The harvesting roller rotates to tear the corn from the stalk of the corn plant body for harvesting. The reaping object clamping and conveying device conveys the corn reaped by the reaping roller to the transverse conveying auger.

In the pre-harvest treatment apparatus of patent document 1, a harvesting roller and a harvested material locking and conveying device are supported by a drive box. In other words, the harvesting roller and the harvested material stopping and conveying device are supported by the boom.

Documents of the prior art

Patent literature

Patent document 1: japanese patent laid-open publication No. 2013-126388

Disclosure of Invention

However, in a structure in which a harvesting roller (a cutting unit that cuts the stem of a crop) and a harvested material locking and conveying device (a conveying device) are supported by a cantilever by a drive box (a driving unit) as in the pre-harvesting treatment device (harvesting device) of patent document 1, it is necessary to increase the strength of the drive box. Therefore, the drive case becomes large.

The present invention has been made in view of the above problems, and an object thereof is to provide a harvesting device and a harvester that can suppress an increase in size of a driving portion.

In the present invention, the harvesting device is provided on the front side in the traveling direction of the harvester that harvests the crop while traveling in the traveling direction. The cutting device comprises a cutting part, a conveying device, a driving part, a No. 1 supporting component and a supporting frame. The cutting portion has a rotary blade. The rotating blade rotates to cut the stem of the crop. The conveying device is disposed above the cutting section. The transportation device transports the crop whose stem has been cut by the rotary blade. The driving unit drives the cutting unit and the conveying device. The 1 st support member supports an end portion of the cutting portion on the front side in the advancing direction. The support frame supports the transport device and supports the 1 st support member. An end portion of the cutting portion on the rear side in the advancing direction is supported by the driving portion.

In the present invention, a harvester includes the harvesting device and the threshing device. The threshing device threshes the crops cut by the cutting device.

According to the harvesting device and the harvester of the present invention, the drive portion can be prevented from being enlarged.

Drawings

Fig. 1 is a side view showing a harvester according to an embodiment of the present invention.

Fig. 2 is a perspective view of the harvesting device according to the embodiment of the present invention.

Fig. 3 is a perspective view of the cutting device with the 1 st to 4 th cover members removed.

Fig. 4 is a perspective view of the cutting device with the 1 st to 4 th cover members and the 1 st to 3 rd conveying devices removed.

Fig. 5 is a perspective view showing the cutting section and the drive case.

Fig. 6 is a right side view of the cutting device with the 1 st to 4 th cover members removed.

Fig. 7 is an enlarged perspective view showing a part of the configuration of the harvesting device according to the embodiment of the present invention.

Fig. 8 is a plan view showing the transport apparatus.

Fig. 9 is a perspective view showing a part of the configuration of the harvesting device according to the embodiment of the present invention.

Fig. 10 is another perspective view showing an enlarged part of the structure of the harvesting device according to the embodiment of the present invention.

Fig. 11 is a further perspective view showing an enlarged part of the configuration of the harvesting device according to the embodiment of the present invention.

Description of the reference numerals

2 \ 8230and a main body frame; 2A 8230and front frame; 6 \ 8230and a cover component; 6 a\8230anda 1 st cover component; 6b 8230and a 2 nd cover component; 6c 8230and a 3 rd cover component; 6 d\8230a4 th cover component; 9 \ 8230a cover support member (No. 2 support member); 9a 82301 st cover support member; 9b 8230a 2 nd cover support member; 9c 8230a 3 rd cover support member; 9d 82304 th cover support member; 13 \ 8230and a supporting frame; 13a 82301 st support frame; 13b 8230and 2 nd support frame; 14 \ 8230and a conveying device; 14 a\8230aNo. 1 conveying device; 14b 8230and 2 nd conveying device; 14c 8230and a 3 rd conveying device; 16 \ 8230a cutting part; 16a 8230, the 1 st cutting part; 16b 8230and 2 nd cutting part; 16c 8230and 3 rd cutting part; 18 \ 8230and a driving box (driving part); 18a 8230, drive case 1; 18b 8230and 2 nd drive box; 18 c\8230anda 3 rd driving box; 28 \ 8230and mounting parts; 100\8230aharvester; 141 \ 8230a No. 1 conveying mechanism; 142, 8230and 2 nd conveying mechanism; 145, 8230and a reinforcing member; 161 8230the No. 1 rotating blade; 162\8230the2 nd rotary blade part; 200 \ 8230and a cutting device; 241, 8230a cutting body (a rotary blade); 260, 8230and a support member (No. 1 support member); 303\ 8230and threshing device.

Detailed Description

Embodiments of a harvesting device and a harvester according to the present invention will be described below with reference to the drawings (fig. 1 to 11). However, the present invention is not limited to the following embodiments, and can be implemented in various forms without departing from the scope of the present invention. Note that description of parts overlapping description may be appropriately omitted. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated.

In the present specification, the front-back direction, the left-right direction, and the up-down direction are sometimes denoted for easy understanding. In the present specification, the side on which the harvesting device 200 is disposed with respect to the main body 300 is the front side (see fig. 1), and the opposite side is the rear side. The side of the main body 300 on which the running gear 301 is disposed is the lower side, and the opposite side is the upper side (see fig. 1). The right hand side of the operator sitting in the driver seat 351 is the right side, and the opposite side is the left side (see fig. 1). However, the front-back direction, the left-right direction, and the up-down direction are defined herein for convenience of description only, and it is not intended to limit the orientation of the harvesting device and the harvester of the present invention in use and assembly by the definition of these directions.

First, a harvester 100 (combine harvester) according to the present embodiment will be described with reference to fig. 1. Fig. 1 is a side view showing a harvester 100 according to the present embodiment. The harvester 100 harvests corn while traveling in the direction of travel. Specifically, the harvester 100 harvests the corn fruits while advancing to the front side. Corn is one example of a crop. The fruit of maize is a part where the seeds of maize are connected in a rod-like manner to form clusters.

As shown in fig. 1, the harvester 100 includes a harvesting device 200 and a main body 300. The harvesting device 200 is provided on the front side of the main body 300. In other words, the harvesting device 200 is provided on the front side in the traveling direction of the harvester 100. The harvesting device 200 harvests corn (crops). More specifically, the harvesting device 200 harvests the fruit of corn.

The main body 300 includes a traveling device 301, a conveying conveyor 302, a threshing device 303, a sorting device 304, and a steering unit 305. The main body 300 further includes a power unit (not shown) and a grain tank (not shown).

The power plant includes an engine. The engine is, for example, a diesel engine. The engine converts thermal energy obtained by burning fuel into kinetic energy (power). Further, the power plant may comprise an electric motor. The power plant may include only one of the engine and the electric motor, or may include both the engine and the electric motor.

The travel device 301 causes the harvester 100 to travel. The traveling device 301 is driven based on power (kinetic energy) generated by the power device. The traveling device 301 may include, for example, a pair of left and right traveling crawler devices. The pair of left and right crawler belts drive the harvester 100 in the front-rear direction. Further, the pair of right and left crawler belts turn the harvester 100 in the right and left direction.

The conveyer 302 conveys the corn cut by the cutting device 200 to the threshing device 303. The conveying conveyor 302 is driven based on power (kinetic energy) generated by a power device.

The threshing device 303 performs a threshing process of threshing the corn. The threshing device 303 is driven based on power (kinetic energy) generated by the power device. The threshing device 303 includes, for example, a threshing cylinder 303a and a receiving net 303b. The threshing cylinder 303a performs threshing processing by rotating. The receiving net 303b is disposed below the threshing cylinder 303a and receives grains dropped from the threshing cylinder 303 a. The receiving net 303b allows the threshed objects dropped from the threshing cylinder 303a to drop toward the screening device 304. The threshed matter includes grains, leaves, core and other foreign matter.

The screening device 304 is disposed below the threshing device 303. The screening device 304 screens the threshed product falling from the threshing device 303 into grains and inclusions. The screening device 304 is driven based on the power (kinetic energy) generated by the power device. The grains screened by the screening apparatus 304 are fed into a grain tank. The foreign matter screened by the screening device 304 is discharged to the outside of the harvester 100.

The steering unit 305 includes operating elements such as a driver seat 351 and a steering wheel 352. The operator sits on the driver seat 351. The steering wheel 352 is operated by an operator to change the traveling direction. The operating elements include a shift lever, a clutch lever, switches, and the like, in addition to the steering wheel 352.

Next, the harvesting device 200 according to the present embodiment will be described with reference to fig. 2. Fig. 2 is a perspective view of the harvesting device 200 according to the present embodiment. As shown in fig. 2, the harvesting device 200 includes a main body frame 2, a lateral transfer auger 4 (lateral transfer screw), 1 st to 4 th cover members 6a to 6d, and 1 st to 4 th seedling separators 7a to 7d. The main body frame 2 has a crop input opening 8.

The transverse conveying auger 4 extends along the left and right direction. The horizontal conveyance auger 4 is rotatably supported by the main body frame 2. The crop input opening 8 of the main body frame 2 is positioned behind the transverse conveying auger 4. The transverse conveying auger 4 conveys the corn fruits to the crop throwing opening 8. As a result, the corn fruit is thrown into the crop throwing opening 8. The corn fruits put into the crop input opening 8 are conveyed to the threshing device 303 by the conveyor 302 described with reference to fig. 1.

The 1 st cover member 6a to the 4 th cover member 6d are supported by the main body frame 2. Specifically, the 1 st to 4 th cover members 6a to 6d are fixed to the main body frame 2. The 1 st cover member 6a to the 4 th cover member 6d protrude forward from the main body frame 2. The 1 st to 4 th cover members 6a to 6d cover the 1 st to 3 rd transport devices 14a to 14c described later with reference to fig. 3 from above.

The 1 st cover member 6a to the 4 th cover member 6d are arranged in this order from right to left. The 1 st cover member 6a and the 2 nd cover member 6b are adjacent to each other with a gap therebetween in the left-right direction. The 2 nd cover member 6b and the 3 rd cover member 6c are adjacent to each other with a gap therebetween in the left-right direction. The 3 rd cover member 6c and the 4 th cover member 6d are adjacent to each other with a gap therebetween in the left-right direction. As a result, the 1 st stalk introducing port 10a is formed between the 1 st cover member 6a and the 2 nd cover member 6b. Similarly, a 2 nd stalk introducing port 10b is formed between the 2 nd cover member 6b and the 3 rd cover member 6c. A 3 rd stalk introducing port 10c is formed between the 3 rd cover member 6c and the 4 th cover member 6d.

Hereinafter, when the 1 st stalk introduction port 10a to the 3 rd stalk introduction port 10c are not described differently, the 1 st stalk introduction port 10a to the 3 rd stalk introduction port 10c may be referred to as "stalk introduction port 10".

The 1 st to 4 th seedling dividing bodies 7a to 7d are connected to the tips of the 1 st to 4 th cover members 6a to 6d, respectively. The 1 st to 4 th seedling dividing bodies 7a to 7d are utilized to divide the seedlings of the ear stalks (stalks of the corn) which are not cut from the 3 ridges according to the ridges. As a result, 1 row of uncut cornstalks (stalks of corn) were introduced into the 1 st stalk introducing port 10a to the 3 rd stalk introducing port 10c, respectively.

Next, the harvesting device 200 according to the present embodiment will be described with reference to fig. 3. Fig. 3 is a perspective view of the harvesting device 200 after the 1 st to 4 th cover members 6a to 6d are removed. As shown in fig. 3, the harvesting device 200 further includes a drive unit 12 and the 1 st to 3 rd conveying devices 14a to 14c.

The drive unit 12 is disposed on the right side surface of the main body frame 2 and supported by the main body frame 2. The drive unit 12 rotates the lateral conveying auger 4. The drive unit 12 is driven based on power (kinetic energy) generated by the power device of the main body 300 described with reference to fig. 1. As will be described later with reference to fig. 5, the driving unit 12 drives the 1 st to 3 rd conveying devices 14a to 14c and the 1 st to 3 rd cutting units 16a to 16c in addition to the lateral conveyance auger 4.

The 1 st to 3 rd conveying devices 14a to 14c protrude forward from the main body frame 2. The 1 st to 3 rd conveyance devices 14a to 14c are arranged in order from right to left. The 1 st to 3 rd conveyors 14a to 14c convey the corn fruits to the rear side. The transverse conveying auger 4 is positioned behind the 1 st conveying device 14a to the 3 rd conveying device 14c. The transverse conveying auger 4 conveys the corn fruits conveyed by the 1 st conveying device 14a to the 3 rd conveying device 14c to the crop input opening 8. Hereinafter, when the 1 st to 3 rd transport devices 14a to 14c need not be described separately, the 1 st to 3 rd transport devices 14a to 14c may be referred to as "transport device 14".

Next, the conveyance device 14 will be further described with reference to fig. 3. As shown in fig. 3, the conveying device 14 includes a 1 st conveying mechanism 141 and a 2 nd conveying mechanism 142. The 1 st conveyance mechanism 141 and the 2 nd conveyance mechanism 142 constitute 1 unit. The 1 st conveyance mechanism 141 and the 2 nd conveyance mechanism 142 protrude forward from the main body frame 2. The 1 st conveyance mechanism 141 and the 2 nd conveyance mechanism 142 are arranged in order from right to left. The 1 st transport mechanism 141 and the 2 nd transport mechanism 142 are adjacent to each other with a gap therebetween in the left-right direction. The gap between the 1 st conveying mechanism 141 and the 2 nd conveying mechanism 142 corresponds to the stalk introducing port 10. The 1 st conveying mechanism 141 and the 2 nd conveying mechanism 142 convey the corn fruit backward.

Next, the harvesting device 200 according to the present embodiment will be described with reference to fig. 4. Fig. 4 is a perspective view of the harvesting device 200 after the 1 st to 4 th cover members 6a to 6d and the 1 st to 3 rd transport devices 14a to 14c are removed. As shown in fig. 4, the harvesting device 200 further includes the 1 st to 3 rd cutting units 16a to 16c and the 1 st to 3 rd drive boxes 18a to 18c. The 1 st to 3 rd drive boxes 18a to 18c are examples of "drive portions", respectively.

The 1 st to 3 rd drive boxes 18a to 18c are supported by the main body frame 2. Specifically, the 1 st to 3 rd driving boxes 18a to 18c are fixed to the main body frame 2. The 1 st to 3 rd drive cassettes 18a to 18c are arranged in order from right to left.

The 1 st to 3 rd cutting portions 16a to 16c protrude forward from the main body frame 2. The 1 st to 3 rd cutting portions 16a to 16c are arranged in order from right to left. Specifically, the end portion of the 1 st cutting portion 16a on the rear side in the traveling direction is supported by the 1 st drive case 18 a. The end portion of the 2 nd cutting portion 16b on the rear side in the traveling direction is supported by the 2 nd drive case 18 b. The end portion of the 3 rd cutting portion 16c on the rear side in the traveling direction is supported by the 3 rd drive case 18c. The 1 st to 3 rd cutting portions 16a to 16c project forward from the 1 st to 3 rd drive cases 18a to 18c, respectively.

The 1 st to 3 rd cutting parts 16a to 16c cut the corn stalks (stalks of corn plants), respectively. The 1 st to 3 rd conveying devices 14a to 14c described with reference to fig. 3 are disposed above the 1 st to 3 rd cutting portions 16a to 16c, respectively, and convey the corn (the corn plant body obtained by cutting the stalks) whose stalks are cut by the 1 st to 3 rd cutting portions 16a to 16 c.

Hereinafter, when the 1 st to 3 rd cutting portions 16a to 16c are not described separately, the 1 st to 3 rd cutting portions 16a to 16c may be referred to as "cutting portions 16". In addition, when it is not necessary to separately describe the 1 st drive box 18a to the 3 rd drive box 18c, the 1 st drive box 18a to the 3 rd drive box 18c may be referred to as "drive boxes 18".

Next, the cutting unit 16 and the drive box 18 will be further described with reference to fig. 4. As shown in fig. 4, the cutting section 16 includes a 1 st rotary blade 161 and a 2 nd rotary blade 162. The 1 st and 2 nd rotary blade parts 161 and 162 constitute 1 unit. The drive box 18 supports the end portions of the 1 st and 2 nd rotary blades 161 and 162 on the rear side in the traveling direction. The 1 st rotary blade 161 and the 2 nd rotary blade 162 project forward from the drive case 18. The 1 st rotary blade 161 and the 2 nd rotary blade 162 are arranged in this order from right to left. The 1 st rotary blade 161 and the 2 nd rotary blade 162 are adjacent to each other with a gap therebetween in the left-right direction. The gap between the 1 st rotary blade 161 and the 2 nd rotary blade 162 corresponds to the stalk introducing port 10.

The drive box 18 drives the cutting section 16. Specifically, the drive box 18 rotates the 1 st and 2 nd rotary blades 161 and 162. The 1 st rotary blade 161 and the 2 nd rotary blade 162 rotate to cut the corn stalks (stalks of the corn plant) introduced into the gap (stalk introduction port 10) between the 1 st rotary blade 161 and the 2 nd rotary blade 162.

The drive box 18 also drives the transport device 14 (the 1 st transport mechanism 141 and the 2 nd transport mechanism 142) described with reference to fig. 3. The drive box 18 drives the conveyor 14 to convey the corn whose stem has been cut by the cutting unit 16 by the conveyor 14.

Next, the cutting unit 16 will be further described with reference to fig. 5. Fig. 5 is a perspective view showing the cutting unit 16 and the drive case 18. As shown in fig. 5, the 1 st rotary blade part 161 includes a 1 st rotary body 221 and a plurality of cutters 241. The 2 nd rotary blade 162 includes the 2 nd rotary body 222 and a plurality of cutters 241. The cutting members 241 are examples of rotary blades.

The 1 st rotating body 221 and the 2 nd rotating body 222 are connected to the drive box 18 at their rear ends in the traveling direction, and are supported by the drive box 18. The 1 st rotor 221 and the 2 nd rotor 222 extend forward from the drive box 18. The 1 st rotating body 221 has an approximately cylindrical shape. Similarly, the 2 nd rotation body 222 has an approximately cylindrical shape.

The drive box 18 rotates the 1 st rotor 221 and the 2 nd rotor 222 in opposite directions to each other. Specifically, the drive box 18 rotates the 1 st rotating body 221 in the 1 st rotation direction R1 around the 1 st rotation axis AX 1. The 1 st rotation axis AX1 is an imaginary axis extending in the front-rear direction (traveling direction), and passes through the center of the 1 st rotating body 221. In the present embodiment, the 1 st rotation direction R1 is clockwise when viewed from the front. Further, the drive box 18 rotates the 2 nd rotating body 222 in the 2 nd rotating direction R2 around the 2 nd rotation axis AX 2. The 2 nd rotation axis AX2 is an imaginary axis extending in the front-rear direction (traveling direction), and passes through the center of the 2 nd rotating body 222. In the present embodiment, the 2 nd rotation direction R2 is counterclockwise as viewed from the front.

A plurality of cutters 241 are disposed on the outer circumferential surface of the 1 st rotating body 221. In the present embodiment, the cutter 241 is disposed at a position 4 on the outer peripheral surface of the 1 st rotating body 221 in the circumferential direction of the 1 st rotation axis AX 1. Similarly, a cutter 241 is disposed at a position 4 on the outer peripheral surface of the 2 nd rotating body 222 along the circumferential direction of the 2 nd rotation axis AX 2. The 1 st rotating body 221 rotates in the 1 st rotation direction R1, and the 2 nd rotating body 222 rotates in the 2 nd rotation direction R2, whereby the corn stalks (stalks of the corn plant material) introduced into the gap (stalk inlet 10) between the 1 st rotating blade 161 and the 2 nd rotating blade 162 are cut by the cutter 241 of the 1 st rotating body 221 and the cutter 241 of the 2 nd rotating body 222.

Next, the harvesting device 200 according to the present embodiment will be further described with reference to fig. 5. As shown in fig. 5, the harvesting device 200 further includes an input shaft 20a, a 1 st relay shaft 20b, and a 2 nd relay shaft 20c.

The input shaft 20a is a shaft member extending in a direction orthogonal to the traveling direction. In the present embodiment, the input shaft 20a extends in the left-right direction. The input shaft 20a is rotatably supported by the main body frame 2 described with reference to fig. 2. One end of the input shaft 20a is connected to the drive unit 12 described with reference to fig. 3. The other end of the input shaft 20a is connected to the 1 st drive case 18 a. The 1 st drive case 18a rotatably supports the input shaft 20a.

The drive unit 12 described with reference to fig. 3 rotates the input shaft 20a in the 3 rd rotation direction R3 around the 3 rd rotation axis AX 3. The 3 rd rotation axis AX3 is an imaginary axis extending in the left-right direction and passes through the center of the input shaft 20a. In the present embodiment, the 3 rd rotation direction R3 is clockwise when viewed from the right side.

The 1 st relay shaft 20b is a shaft member extending in a direction orthogonal to the traveling direction. In the present embodiment, the 1 st relay shaft 20b extends in the left-right direction. One end of the 1 st relay shaft 20b is rotatably supported by the 1 st drive case 18 a. The other end of the 1 st relay shaft 20b is rotatably supported by the 2 nd drive case 18 b. The 1 st drive case 18a and the 2 nd drive case 18b support the 1 st relay shaft 20b such that the 3 rd rotation axis AX3 passes through the center of the 1 st relay shaft 20 b.

The 2 nd relay shaft 20c is a shaft member extending in a direction orthogonal to the traveling direction. In the present embodiment, the 2 nd relay shaft 20c extends in the left-right direction. One end of the 2 nd relay shaft 20c is rotatably supported by the 2 nd drive case 18 b. The other end of the 2 nd relay shaft 20c is rotatably supported by the 3 rd drive case 18c. The 2 nd drive case 18b and the 3 rd drive case 18c support the 2 nd relay shaft 20c such that the 3 rd rotation axis AX3 passes through the center of the 2 nd relay shaft 20c.

The 1 st drive case 18a rotates the 1 st and 2 nd rotary blades 161 and 162 connected to the 1 st drive case 18a based on the rotation of the input shaft 20a. Further, the 1 st drive case 18a rotates the 1 st relay shaft 20b in the 3 rd rotation direction R3 around the 3 rd rotation axis AX3 based on the rotation of the input shaft 20a.

The 2 nd drive box 18b rotates the 1 st and 2 nd rotary blades 161 and 162 connected to the 2 nd drive box 18b based on the rotation of the 1 st relay shaft 20 b. Further, the 2 nd drive case 18b rotates the 2 nd relay shaft 20c in the 3 rd rotation direction R3 around the 3 rd rotation axis AX3 based on the rotation of the 1 st relay shaft 20 b.

The 3 rd drive box 18 rotates the 1 st and 2 nd rotary blades 161 and 162 connected to the 3 rd drive box 18c based on the rotation of the 2 nd relay shaft 20c.

Next, the 1 st drive box 18a will be further described with reference to fig. 5. As shown in fig. 5, the 1 st drive case 18a has a case member 181, a 1 st output shaft 182, and a 2 nd output shaft 183. The 1 st drive box 18a further includes a drive force transmission mechanism (not shown).

The driving force transmission mechanism is housed inside the case member 181. The driving force transmission mechanism transmits the rotational force of the input shaft 20a to the 1 st rotary blade 161, the 2 nd rotary blade 162, the 1 st relay shaft 20b, the 1 st output shaft 182, and the 2 nd output shaft 183. As a result, the 1 st rotary blade 161, the 2 nd rotary blade 162, the 1 st relay shaft 20b, the 1 st output shaft 182, and the 2 nd output shaft 183 rotate according to the rotation of the input shaft 20a. The driving force transmission mechanism may have a plurality of bevel gears, for example.

The 1 st output shaft 182 and the 2 nd output shaft 183 extend in the vertical direction. The 1 st output shaft 182 and the 2 nd output shaft 183 project upward from the upper surface of the case member 181. The 1 st output shaft 182 and the 2 nd output shaft 183 are rotatably supported by the case member 181. The 1 st output shaft 182 and the 2 nd output shaft 183 are connected to the 1 st transport mechanism 141 and the 2 nd transport mechanism 142 of the 1 st transport device 14a described with reference to fig. 3, respectively. The 1 st output shaft 182 rotates to drive the 1 st transport mechanism 141. The 2 nd output shaft 183 rotates to drive the 2 nd conveyance mechanism 142.

Specifically, the driving force transmission mechanism of the 1 st drive case 18a rotates the 1 st output shaft 182 in the 4 th rotation direction R4 about the 4 th rotation axis AX 4. The 4 th rotation axis AX4 is an imaginary axis extending in the vertical direction and passes through the center of the 1 st output shaft 182. In the present embodiment, the 4 th rotation direction R4 is counterclockwise when viewed from above. Further, the drive force transmission mechanism of the 1 st drive case 18a rotates the 2 nd output shaft 183 in the 5 th rotation direction R5 around the 5 th rotation axis AX 5. The 5 th rotation axis AX5 is a virtual axis extending in the vertical direction, and passes through the center of the 2 nd output shaft 183. In the present embodiment, the 5 th rotation direction R5 is clockwise when viewed from above.

The 2 nd drive box 18b and the 3 rd drive box 18c have the same configuration as the 1 st drive box 18a, and therefore, the description thereof is omitted.

Next, the harvesting device 200 according to the present embodiment will be further described with reference to fig. 5. As shown in fig. 5, the harvesting device 200 further includes a support member 260. The support member 260 is an example of the 1 st support member. The support member 260 supports the end portion of the cutting section 16 on the front side in the advancing direction.

In detail, the supporting member 260 includes 3 supporting members 261 and 3 supporting members 262. The 3 support members 261 rotatably support the end portions of the 31 st rotary blade parts 161 on the front side in the traveling direction. More specifically, 3 support members 261 rotatably support the end portions of 31 st rotating bodies 221 on the front side in the traveling direction. Similarly, the 3 support members 262 rotatably support the end portions of the 32 nd rotary blade portions 162 on the forward side in the traveling direction. More specifically, each of the 3 support members 262 rotatably supports the end portion of the 32 nd rotating body 222 on the front side in the traveling direction.

Here, the driving unit 12 will be described with reference to fig. 6. Fig. 6 is a right side view of the harvesting device 200 with the 1 st to 4 th cover members 6a to 6d removed. As shown in fig. 6, the driving unit 12 includes 1 st to 4 th sprockets 121 to 124, 1 st to 3 rd tension pulleys 125 to 127, 1 st and 2 nd drive chain members 128a and 128b, and a rotating shaft 129.

First sprocket 121 is disposed between main body frame 2 and third sprocket 123, and is fixed to rotation shaft 129. The rotation shaft 129 is rotatably supported by the main body frame 2. The rotation shaft 129 is a shaft member extending in a direction orthogonal to the traveling direction. In the present embodiment, the rotation shaft 129 extends in the left-right direction.

As shown in fig. 6, the lateral transfer auger 4 described with reference to fig. 2 has a drive shaft 41. The drive shaft 41 is a shaft member extending in a direction orthogonal to the traveling direction. In the present embodiment, the drive shaft 41 extends in the left-right direction. The drive shaft 41 is rotatably supported by the main body frame 2. The 2 nd sprocket 122 is fixed to the drive shaft 41.

The 1 st drive chain member 128a is mounted on the 1 st sprocket 121 and the 2 nd sprocket 122 and supported by the 1 st sprocket 121 and the 2 nd sprocket 122. The 1 st drive chain member 128a rotates so that the drive force is transmitted from the 1 st drive chain member 128a to the drive shaft 41 via the 2 nd sprocket 122, thereby rotating the drive shaft 41. As a result, the horizontal conveyance auger 4 is rotated. Further, the drive unit 12 may have a drive pulley instead of the 1 st sprocket 121. Likewise, the drive unit 12 may have a drive pulley instead of the 2 nd sprocket 122.

The 1 st tension pulley 125 is a tension adjusting member that adjusts the tension of the 1 st drive chain member 128 a. Specifically, the 1 st tension pulley 125 is rotatably supported by the main body frame 2. The 1 st tension pulley 125 is adjustable in vertical position within a range in which it can contact the 1 st drive chain member 128 a. The tension of the 1 st drive chain member 128a can be adjusted by adjusting the vertical position of the 1 st tension pulley 125. Further, the drive unit 12 may have a belt member instead of the 1 st drive chain member 128 a.

The 3 rd sprocket 123 is fixed to the rotation shaft 129. The 4 th sprocket 124 is fixed to the input shaft 20a described with reference to fig. 5. Second drive chain member 128b is mounted on third sprocket 123 and fourth sprocket 124 and supported by third sprocket 123 and fourth sprocket 124. The 2 nd drive chain member 128b rotates so that the drive force is transmitted from the 2 nd drive chain member 128b to the input shaft 20a via the 4 th sprocket 124, thereby rotating the input shaft 20a. As a result, the cutting unit 16 and the conveying device 14 are driven. Further, the drive unit 12 may have a drive pulley instead of the 3 rd sprocket 123. Likewise, the drive unit 12 may have a drive pulley instead of the 4 th sprocket 124.

The 2 nd tension pulley 126 and the 3 rd tension pulley 127 are tension adjusting members that adjust the tension of the 2 nd drive chain member 128 b. Specifically, the 2 nd tension pulley 126 is fixed to the drive shaft 41 of the lateral transfer auger 4. The 3 rd tension pulley 127 is rotatably supported by the main body frame 2. The 3 rd tension pulley 127 is adjustable in vertical position within a range in which it can contact the 2 nd drive chain member 128 b. The tension of the 2 nd drive chain member 128b can be adjusted by adjusting the vertical position of the 3 rd tension pulley 127. Further, the drive unit 12 may have a belt member instead of the 2 nd drive chain member 128 b.

Next, the harvesting device 200 according to the present embodiment will be further described with reference to fig. 7. Fig. 7 is an enlarged perspective view showing a part of the structure of the harvesting device 200 according to the present embodiment. As shown in fig. 7, the main body frame 2 has a front frame 2A. The harvesting device 200 also has a mounting member 28.

The front frame 2A is an elongated member extending in the left-right direction. In the present embodiment, the front frame 2A has a substantially rectangular parallelepiped shape. As shown in fig. 7, the drive box 18 is supported on the upper surface of the front frame 2A.

The attachment member 28 attaches the connection portion between the cutting portion 16 and the drive case 18 to the main body frame 2. In the present embodiment, the mounting member 28 is a part of the drive case 18. More specifically, the mounting member 28 constitutes a front wall of the box member 181. In other words, the mounting member 28 is provided on the front surface of the box member 181. The mounting member 28 projects downward from the lower surface of the box member 181 and is fixed to the front surface of the front frame 2A. The mounting member 28 is, for example, a metal plate member.

According to the present embodiment, the connection portion between the cutting portion 16 and the drive case 18 is supported by the main body frame 2 via the mounting member 28. Therefore, the load of the support cutoff portion 16 can be dispersed to the main body frame 2. Therefore, the cutting section 16 can be supported without increasing the strength of the drive case 18, as compared with a structure in which the cutting section 16 is supported by only the drive case 18 in a cantilever manner. As a result, the drive case 18 can be prevented from being enlarged.

Next, the 1 st conveying mechanism 141 will be described with reference to fig. 8. Fig. 8 is a plan view showing the transfer device 14. As shown in fig. 8, the 1 st transport mechanism 141 includes the 1 st support body 32, the 2 nd support body 34, the rotary shaft 36, and the endless rotary body 38.

The 1 st support body 32 has an approximately circular outer shape. The 1 st output shaft 182 is connected to the center of the 1 st support body 32. The 1 st output shaft 182 rotates, and the 1 st support body 32 rotates about the 1 st output shaft 182. The 1 st support body 32 may be, for example, a sprocket or a drive pulley.

The second support 34 has a circular outer shape. The rotation shaft 36 extends in the up-down direction. The rotation shaft 36 rotatably supports the center of the 2 nd support body 34. The rotary shaft 36 projects upward from the 1 st support frame 13a described with reference to fig. 9. The 2 nd support body 34 may be, for example, a sprocket or a drive pulley.

The 2 nd support 34 is opposed to the 1 st support 32 in the front-rear direction (traveling direction). Specifically, the 2 nd support member 34 is disposed in front of the 1 st support member 32. The ring rotator 38 is ring-shaped or wheel-shaped. The annular rotating body 38 is mounted on the 1 st support body 32 and the 2 nd support body 34, and supported by the 1 st support body 32 and the 2 nd support body 34. When the 1 st output shaft 182 rotates in the 4 th rotation direction R4 to rotate the 1 st support body 32, the annular rotating body 38 rotates in the 1 st circling direction C1. The 1 st circling direction C1 is counterclockwise when viewed from above. The endless rotary body 38 is, for example, a chain member. Alternatively, the endless rotary body 38 may be a belt member.

As shown in fig. 8, the ring rotator 38 has claw portions 38a protruding outward. The annular rotary body 38 rotates to rotate the claw portion 38a in the 1 st circling direction C1. Therefore, the claw portion 38a travels toward the rear side in the gap between the 1 st conveying mechanism 141 and the 2 nd conveying mechanism 142. As described with reference to fig. 4 and 5, the cutting unit 16 cuts the stem of the corn. The corn with the cut stem is transported to the rear side by the claw portion 38a.

Next, the 2 nd conveying mechanism 142 will be described with reference to fig. 8. As shown in fig. 8, the 2 nd conveying mechanism 142 includes the 1 st support body 32, the 2 nd support body 34, the rotary shaft 36, and the endless rotary body 38, similarly to the 1 st conveying mechanism 141. Since the configuration of the 2 nd conveying mechanism 142 is substantially the same as that of the 1 st conveying mechanism 141, only the configuration different from that of the 1 st conveying mechanism 141 will be described, and the configuration identical to that of the 1 st conveying mechanism 141 will not be described.

The 2 nd transport mechanism 142 has the center of the 1 st support body 32 connected to the 2 nd output shaft 183. The rotary shaft 36 of the 2 nd conveying mechanism 142 protrudes upward from the 2 nd support frame 13b described with reference to fig. 9. When the 2 nd output shaft 183 rotates in the 5 th rotation direction R5, the endless rotary body 38 of the 2 nd transport mechanism 142 rotates in the 2 nd circling direction C2. The 2 nd circulating direction C2 is a clockwise direction when viewed from above. Therefore, the claw portions 38a of the 2 nd conveying mechanism 142 also travel backward in the gap between the 1 st conveying mechanism 141 and the 2 nd conveying mechanism 142, similarly to the claw portions 38a of the 1 st conveying mechanism 141. Thus, the corn with the cut stem is carried to the rear side by the claw portion 38a.

Next, the harvesting device 200 according to the present embodiment will be described with reference to fig. 9. Fig. 9 is a perspective view showing a part of the structure of the harvesting device 200 according to the present embodiment. As shown in fig. 9, the harvesting device 200 further includes a support frame 13. The support frame 13 is disposed below the conveyor 14, and supports the conveyor 14. The end portion of the support frame 13 on the rear side in the traveling direction is supported by the drive box 18. Specifically, the support frame 13 includes 31 st support frames 13a and 32 nd support frames 13b.

The 31 st support frames 13a are disposed below the 31 st transport mechanisms 141, respectively, and support the 31 st transport mechanisms 141, respectively. The end portions of the 31 st support frames 13a on the rear side in the traveling direction are supported by the 3 drive boxes 18 (1 st to 3 rd drive boxes 18a to 18 c), respectively. Specifically, the 1 st support frames 13a are fixed to the corresponding drive boxes 18, respectively. The 1 st support frames 13a extend forward from the corresponding drive boxes 18, respectively.

The 32 nd support frames 13b are disposed below the 32 nd conveying mechanisms 142, respectively, and support the 32 nd conveying mechanisms 142, respectively. The end portions of the 32 nd support frames 13b on the rear side in the traveling direction are supported by the 3 drive cassettes 18 (1 st to 3 rd drive cassettes 18a to 18 c), respectively. Specifically, the 2 nd support frames 13b are fixed to the corresponding drive boxes 18, respectively. The 2 nd support frames 13b extend from the corresponding drive boxes 18 toward the front side, respectively.

Next, the harvesting device 200 according to the present embodiment will be further described with reference to fig. 9. As shown in fig. 9, the harvesting device 200 further includes a reinforcing member 145. The reinforcing member 145 supports the support frame 13 from below. The reinforcing member 145 is, for example, a metal plate member. Specifically, the harvesting device 200 includes 12 reinforcing members 145. Specifically, 2 reinforcing members 145 are provided for 3 first support frames 13a, and 2 reinforcing members 145 are provided for 3 second support frames 13b.

As shown in fig. 9, the reinforcing member 145 is supported by the drive case 18. Specifically, the 1 st drive case 18a supports: 2 reinforcing members 145 for supporting the 1 st supporting frame 13a fixed to the 1 st drive case 18a, and 2 reinforcing members 145 for supporting the 2 nd supporting frame 13b fixed to the 1 st drive case 18 a. Therefore, 4 reinforcing members 145 are fixed to the 1 st drive case 18 a. Similarly, the 2 nd drive case 18b and the 3 rd drive case 18c support the 4 reinforcing members 145, respectively.

As already described, the support frame 13 is supported by the drive case 18. In other words, the drive box 18 supports the transport device 14 via the support frame 13. According to the present embodiment, since the support frame 13 is also supported by the reinforcing member 145, the conveyor 14 can be supported by the support frame 13 without increasing the strength of the drive box 18. As a result, the drive case 18 can be prevented from being enlarged. Further, the reinforcing member 145 can protect the drive case 18.

Further, the reinforcing member 145 has an approximately right triangle shape. Specifically, the vertical width of the reinforcing member 145 decreases toward the front side. By forming the reinforcing member 145 in a substantially right triangle shape, the area of the region where the reinforcing member 145 overlaps the cut portion 16 described with reference to fig. 4 and 5 can be reduced when viewed from the left-right direction. By reducing the area of the region where the reinforcing member 145 overlaps the cut portion 16, the possibility that the reinforcing member 145 will interfere with the cutting of the corn stalk (stalk of the corn plant) can be further reduced.

Next, the harvesting device 200 according to the present embodiment will be further described with reference to fig. 10. Fig. 10 is another perspective view showing an enlarged part of the structure of the harvesting device 200 according to the present embodiment. As shown in fig. 10, the support member 260 is supported by the support frame 13. Therefore, the end portion of the cutting portion 16 on the front side in the advancing direction is supported by the support frame 13 via the support member 260.

Specifically, the support member 261 is supported by the 1 st support frame 13 a. Therefore, the end portion of the 1 st rotary blade 161 on the front side in the traveling direction is supported by the 1 st support frame 13a via the support member 261. Similarly, the support member 262 is supported by the 2 nd support frame 13b. Therefore, the end portion of the 2 nd rotary blade 162 on the forward side in the traveling direction is supported by the 2 nd support frame 13b via the support member 262. In other words, the end portion of the cutting section 16 on the front side in the traveling direction is supported by the 1 st support frame 13a and the 2 nd support frame 13b via the pair of support members 261 and 262.

As described above with reference to fig. 1 to 10, according to the present embodiment, the end portion of the cutting portion 16 on the forward side in the traveling direction is supported by the support frame 13, and the end portion of the cutting portion 16 on the rearward side in the traveling direction is supported by the drive case 18. In other words, the cut portion 16 is supported from both sides. Therefore, the cutting section 16 can be supported without increasing the strength of the drive case 18, as compared with a structure in which the cutting section 16 is supported by a cantilever. As a result, the drive case 18 can be prevented from being enlarged.

Next, the harvesting device 200 according to the present embodiment will be further described with reference to fig. 10 and 11. In the following description, when the 1 st cover member 6a to the 4 th cover member 6d are not described separately, the 1 st cover member 6a to the 4 th cover member 6d may be referred to as "cover members 6". In addition, when it is not necessary to separately describe the 1 st to 4 th carriers 7a to 7d, the 1 st to 4 th carriers 7a to 7d may be referred to as "carriers 7".

As shown in fig. 10, the 1 st support frame 13a includes a 1 st frame body 131a and a 1 st coupling portion 132a. The 2 nd support frame 13b has a 2 nd frame body 131b and a 2 nd coupling part 132b. The 1 st coupling part 132a protrudes rightward from the front end of the 1 st frame body 131 a. The 2 nd coupling part 132b protrudes to the left from the front end of the 2 nd frame body 131 b.

Fig. 11 is another perspective view showing a part of the configuration of the harvesting device 200 according to the present embodiment. As shown in fig. 11, the harvesting device 200 further includes a cover support member 9 and a coupling member 11. The cover support member 9 supports the cover member 6. More specifically, the cover support member 9 supports the cover member 6 and the seedling separator 7. The coupling member 11 couples the cover support member 9 and the support frame 13. As a result, the support frame 13 supports the cover support member 9 via the coupling member 11. In other words, the support frame 13 supports the cover member 6. More specifically, the support frame 13 supports the cover member 6 and the seedling separation body 7. The cover support member 9 is an example of the 2 nd support member.

Specifically, the cover support member 9 includes the 1 st cover support member 9a to the 4 th cover support member 9d. The coupling member 11 includes 1 st to 4 th coupling members 11a to 11d.

The 1 st cover support member 9a supports the 1 st cover member 6a from below. The 1 st cover support member 9a protrudes downward from the 1 st cover member 6a. The 1 st cover support member 9a has its distal end (lower end) connected to the 1 st coupling member 11 a. The 1 st coupling member 11a extends in the left-right direction, and couples the 1 st coupling portion 132a that supports the 1 st support frame 13a of the 1 st transport device 14a to the 1 st cover support member 9 a. As a result, the 1 st cover member 6a is supported by the 1 st support frame 13a that supports the 1 st transport device 14 a.

The 2 nd cover support member 9b supports the 2 nd cover member 6b from below. The 2 nd cover supporting member 9b protrudes downward from the 2 nd cover member 6b. The tip (lower end) of the 2 nd cover support member 9b is connected to the 2 nd coupling member 11 b. The 2 nd connecting member 11b extends in the left-right direction, and connects the 2 nd connecting portion 132b of the 2 nd support frame 13b that supports the 1 st transport device 14a and the 1 st connecting portion 132a of the 1 st support frame 13a that supports the 2 nd transport device 14b to the 2 nd cover support member 9 b. As a result, the 2 nd support frame 13 supporting the 1 st transport device 14a and the 1 st support frame 13a supporting the 2 nd transport device 14b support the 2 nd cover member 6b.

The 3 rd cover support member 9c supports the 3 rd cover member 6c from below. The 3 rd cover supporting member 9c protrudes downward from the 3 rd cover member 6c. The 3 rd cover support member 9c has a distal end (lower end) connected to the 3 rd coupling member 11 c. The 3 rd connecting member 11c extends in the left-right direction, and connects the 2 nd connecting portion 132b that supports the 2 nd support frame 13b of the 2 nd transport device 14b and the 1 st connecting portion 132a that supports the 1 st support frame 13a of the 3 rd transport device 14c to the 3 rd cover support member 9 c. As a result, the 2 nd support frame 13b supporting the 2 nd transport device 14b and the 1 st support frame 13a supporting the 3 rd transport device 14c support the 3 rd cover member 6c.

The 4 th cover supporting member 9d supports the 4 th cover member 6d from below. The 4 th cover supporting member 9d protrudes downward from the 4 th cover member 6d. The 4 th cover support member 9d has a tip (lower end) connected to the 4 th coupling member 11d. The 4 th coupling member 11d extends in the left-right direction, and couples the 2 nd coupling portion 132b that supports the 2 nd support frame 13b of the 3 rd transport device 14c to the 4 th cover support member 9d. As a result, the 2 nd support frame 13b supporting the 3 rd conveying device 14c supports the 4 th cover member 6d.

The embodiments of the present invention have been described above with reference to the drawings (fig. 1 to 11). However, the present invention is not limited to the above embodiment, and can be implemented in various forms without departing from the scope of the invention. The plurality of components disclosed in the above embodiments may be modified as appropriate. For example, any one of all the components described in one embodiment may be added to the components described in another embodiment, or some of all the components described in one embodiment may be deleted from the embodiments.

In order to facilitate understanding of the present invention, the drawings mainly schematically show the respective components, and the thicknesses, lengths, numbers, intervals, and the like of the respective components shown may be different from the actual ones in view of convenience of drawing. The configuration of each component shown in the above embodiments is only an example, and is not particularly limited, and it goes without saying that various modifications can be made within a range that does not substantially depart from the effects of the present invention.

For example, although the embodiment described with reference to fig. 1 to 11 describes a harvester (harvester 100) that harvests corn, the present invention can also be applied to harvesters that harvest crops other than corn.

Industrial applicability of the invention

The present invention is useful for a harvester for harvesting crops and a harvesting device provided in the harvester.

Claims (6)

1. A harvesting device is provided on the front side in the traveling direction of a harvester that harvests a crop while traveling in the traveling direction,

it is characterized in that the preparation method is characterized in that,

the harvesting device is provided with: a cutting unit having a rotary blade that cuts the stem of the crop by rotating;

a conveyor device which is disposed above the cutting section and conveys the crop whose stem has been cut by the rotary blade;

a driving unit that drives the cutting unit and the conveying device,

a 1 st support member that supports an end portion of the cutting portion on the forward side in the advancing direction; and

a support frame that supports the transport device and supports the 1 st support member,

an end portion of the cutting portion on the rear side in the advancing direction is supported by the driving portion.

2. The harvesting device of claim 1,

the driving portion also supports an end portion of the support frame on the traveling direction rear side.

3. The harvesting device of claim 1 or 2,

the harvesting device further comprises: a reinforcing member supporting the support frame from below,

the drive section also supports the reinforcing member.

4. The harvesting device according to any one of claims 1 to 3,

the harvesting device further includes: a main body frame supporting the driving unit; and an attachment member that attaches a connection portion between the cutting portion and the driving portion to the main body frame.

5. The harvesting device of any one of claims 1 to 4,

the harvesting device further includes: a cover member that covers the transport device from above; and a 2 nd support member for supporting the cover member,

the support frame supports the 2 nd support member.

6. A harvester is characterized in that a harvester is provided,

the harvester is provided with: the harvesting device of any one of claims 1 to 5; and a threshing device that threshes the crop harvested by the harvesting device.

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