CN213638912U

CN213638912U - Harvester

Info

Publication number: CN213638912U
Application number: CN202022338377.1U
Authority: CN
Inventors: 齐藤崇; 井上嘉晃
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-09
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses hope can enough prevent that crops from convoluteing on helical drum, can realize the high efficiency of reaping the operation again. The utility model discloses a harvester has horizontal transfer auger (29) in the portion of reaping (8) of reaping the crop, and horizontal transfer auger (29) receives rotary drive with the state that spanes left and right sides lateral wall (26, 27), transfers crops along organism width direction to entry (9a) transport of crops handling device (9), has in horizontal transfer auger (29): a cylindrical spiral drum (36); and a plurality of dial-in bodies (37) which move in and out with the rotation of the spiral roller (36), rotate together with the spiral roller (36), dial in the crops to the rear of the machine body, and have more than 5 dial-in bodies (37a) with different phases in the circumferential direction at the part of the transverse transfer rotary pusher (29) corresponding to the inlet (9a) of the crop carrying device (9).

Description

Harvester

Technical Field

The utility model relates to a combine harvester, a corn harvester and other harvesters.

Background

The harvester has a harvesting part for harvesting crops, and a transverse transfer auger is arranged in the harvesting part. The transverse transfer auger has a plunging body that advances and retreats relative to the spiral drum as the spiral drum rotates, and rotates together with the spiral drum to plup crop into the inlet of the crop conveying device. Conventionally, a spiral drum has 4 pick-up bodies in a state of different phases in a circumferential direction.

Recently, in order to achieve high efficiency of harvesting work, a higher traveling speed for harvesting work is required. As the traveling speed increases, the amount of processing per unit time of the dial-in body needs to be increased. Here, it is conceivable to increase the rotation speed of the spiral drum, but if the rotation speed of the spiral drum is increased, the agricultural product may be wound around and accumulated on the outer periphery of the spiral drum.

SUMMERY OF THE UTILITY MODEL

(problem to be solved by the utility model)

Here, it is desired to achieve high efficiency of harvesting work while preventing crops from being wound around the helical drum.

(means for solving the problems)

The utility model discloses a harvester's characterized in that has: a harvesting part for harvesting crops; and a crop carrying device for carrying the harvested crop to the rear side of the machine body, wherein the harvesting part comprises: a harvesting portion frame having left and right side walls; and a lateral transfer auger that is rotationally driven in a state of being stretched over the left and right side walls, transfers crops in a machine width direction, and conveys the crops to an inlet of the crop conveying device, the lateral transfer auger including: a cylindrical spiral drum having a spiral blade for transporting a crop on an outer circumferential portion thereof and rotating around a horizontal axis; and a plurality of plunging bodies which advance and retreat relative to the spiral roller along with the rotation of the spiral roller and rotate together with the spiral roller to plup the crops to the rear of the machine body, wherein the transverse transfer auger has more than 5 plunging bodies with different phases in the circumferential direction at a part corresponding to the inlet of the crop carrying device.

According to the utility model, the dial-in body rotating together with the spiral roller has more than 5 states with different phases in the circumferential direction. That is, the plunging body plays a plunging role on crops more than 5 times in the process of one rotation of the spiral drum. As a result, even if the rotation speed of the screw drum is the same as that of the conventional one, the amount of the crop poking treatment by the poking body is increased.

Therefore, the crop can be prevented from being wound on the spiral drum without increasing the speed of the spiral drum, and the crop poking-in processing amount of the poking-in body can be increased, thereby realizing high efficiency of harvesting operation.

Preferably, the horizontal transfer auger according to the present invention includes 2 adjacent combinations of the plunging bodies, which are located at the same position in the circumferential direction, and the combinations are located at 5 or more positions different in the circumferential direction of the spiral drum.

With this configuration, the dial-in processing capability of the dial-in body can be further increased.

In the present invention, it is preferable that the spiral drum includes, on an inner peripheral side thereof: a support shaft that supports an inner end of the dial-in body; a holding portion that is externally fitted and supported to the support shaft and supports an inner peripheral end portion of the dial-in body; and a tightening tool that is tightened along an axial direction of the support shaft in a state where the dial-in body is held by the holding portion, and fixes the dial-in body to the holding portion, the tightening tools of the holding portions adjacent in the axial direction being overlapped with each other in the axial direction.

According to this configuration, the inner end of the dial-in body is supported by the support shaft via the holding portion, and the tip end protrudes outward from the spiral drum. One end side of the holding part is externally fitted and supported on the support shaft, and the other end side holds the dial-in body. The held portion is tightened by a tightening tool to fix the dial-in body.

The tightening tool is tightened from both sides in the axial direction, and therefore, projects in the axial direction from a portion where the support shaft is fitted and supported. However, since the tightening pieces of the adjacent holding portions overlap each other in the axial direction, even when the support shaft supports the plurality of plunging bodies, the holding portions can be disposed in a state of being as close to each other as possible in the axial direction.

In the present invention, it is preferable that the outer fitting support of the holding portion is narrower in width in the axial direction at a base end side portion of the support shaft than a portion of the holding portion that is tightened by the tightening tool.

According to this configuration, the width of the portion of the outer fitting support on the base end side of the support shaft is reduced, and therefore, even if the plurality of holding portions are arranged in the axial direction, the holding portions can be arranged in a compact manner in the axial direction.

In the present invention, it is preferable that the lateral transfer auger includes a dial-in body having a tip end turning locus when viewed from the side of the body of a tip end portion of the dial-in body that rotates in accordance with rotation of the spiral drum, the dial-in body being provided on an end portion side of one side in the left-right direction of the lateral transfer auger, the tip end turning locus being different from a tip end turning locus of the dial-in body corresponding to an entrance of the crop transporting device.

At the end portion side in the left-right direction of the horizontal transfer auger, the crop may be near the side wall of the harvesting portion and stagnated. Here, in order to easily exert the plunging action on the crops, the stagnation can be prevented by making the tip turning locus different.

In the present invention, it is preferable that the number of the plunging bodies corresponding to the entrance of the crop transporting device is larger than the number of the plunging bodies located on the end portion side.

According to this configuration, the crop is moved laterally and concentrated at a position corresponding to the inlet of the crop conveying device, as compared with the end portion side position, and thus the amount is large. Here, by increasing the number of dial-in bodies, dial-in processing can be performed efficiently.

In the present invention, it is preferable that the insertion body corresponding to the entrance of the crop transporting apparatus has 6 insertion bodies in a state different in phase for every 60 degrees in the circumferential direction of the spiral drum.

According to this configuration, since the number of the plunging bodies is 6 in a state where the phases are different at equal intervals in the circumferential direction, the plunging process is efficient.

In the present invention, it is preferable that the number of the dial-in bodies located on one end side in the left-right direction of the lateral transfer auger is 4 in a state where the phase is different for every 90 degrees in the circumferential direction of the spiral drum.

According to this configuration, the amount of crop is not large at the end portion side, and therefore, the dial-in process can be performed a small number of times per 1 week.

Drawings

Fig. 1 is a top view of a harvesting section.

Fig. 2 is a sectional view taken along line II-II of fig. 1.

Fig. 3 is a sectional view taken along line III-III of fig. 1.

Fig. 4 is a cross sectional top view of the cross shifting bolt pusher.

Description of the reference numerals

8: harvesting part

9: crop carrying device

9 a: inlet port

22: harvesting part frame

26. 27: side wall

29: transverse transfer auger conveyor

36: spiral roller

37. 37a, 37 b: poking-in body

48: supporting axle

50: holding part

50 a: base end side part

50 b: tightening part

54: and (5) screwing the fastening piece.

Detailed Description

Next, a case where an embodiment of a harvester according to the present invention is applied to a general-type combine harvester as an example of the harvester will be described with reference to the drawings. In the following description, the direction of arrow "F" is "front side of the body" (see fig. 2 and 3), the direction of arrow "B" is "rear side of the body" (see fig. 2 and 3), the direction of arrow "L" is "left side of the body" (see fig. 1 and 4), and the direction of arrow "R" is "right side of the body" (see fig. 1 and 4).

As shown in fig. 1 to 3, a harvesting unit 8 for harvesting standing grain stalks as an example of crops is provided in a front portion of a body of the combine harvester. A conveyor 9 serving as a crop conveying device for conveying the harvested grain stalks to the rear side of the machine body is provided at the rear part of the harvesting part 8. A rotary reel 11 for pulling in the standing crop backward is provided above the harvesting unit 8.

The rotary reel 11 has: a drive shaft 14 extending in the left-right direction and supported by the left and right support arms 12; a left reel frame 15 and a right reel frame 15; a plurality of support rods 16 extending in the left-right direction; and a plurality of tines 17 extending downward.

The harvesting unit 8 includes a harvesting unit frame 22 formed of a frame structure supporting the entire harvesting unit 8. The harvesting section frame 22 includes a back plate 24 forming a back surface, a carrying table 25 forming a bottom surface, left and

right side walls

26 and 27 forming left and right side surfaces, and the like, in a frame 23 to which an angled pipe, an L-shaped member having an L-shaped cross section, and the like are connected.

There is also a clipper-type harvesting apparatus 28 along the front end of the carry table 25 and across the left and

right side walls

26, 27. A transverse transfer auger 29 for intensively transferring the harvested straws to the middle side in the width direction of the machine body is erected so as to straddle the left and

right side walls

26, 27.

The conveyor 9 has a conveying belt 31 inside a conveyance box 30 formed in a substantially rectangular tubular shape. The conveying belt 31 includes a pair of left and right conveying chains 34 and a plurality of locking members 35 connected to the cross frame.

Next, the lateral transfer auger 29 will be described.

The lateral transfer auger 29 includes: a transverse cylindrical spiral roller 36; and a rod-shaped poking-in body 37 which moves in and out of the spiral drum 36 with the rotation of the spiral drum 36, rotates together with the spiral drum 36, and pokes in the harvested rice straw backward.

The spiral drum 36 is formed in a cylindrical shape with a large diameter. A spiral blade 38 for transporting grain stalks is provided on the outer periphery of the spiral drum 36. The helical drum 36 rotates about the transverse axis in a counterclockwise direction in fig. 2 and 3. The helical blades 38 are provided on the left and right sides of the area facing the inlet 9a of the conveyor 9.

As shown in fig. 1, a plurality of pick-up bodies 37 are provided at a portion of the lateral transfer auger 29 corresponding to the entrance 9a of the conveyor 9 and at an end portion of the lateral transfer auger 29 on the right side, which is one side in the left-right direction.

The portion of the lateral transfer auger 29 corresponding to the entrance 9a of the conveyor 9 has 5 or more dial-in bodies 37 in a state of different phases in the circumferential direction. That is, 6 plunging bodies 37 (hereinafter, referred to as inlet side plunging bodies 37a) provided in the area facing the inlet 9a of the conveyor 9 are provided in a state of being different in phase by 60 degrees in the circumferential direction with respect to the spiral roller 36. Further, the entrance-side insertion body 37a includes 2 insertion bodies 37 adjacent to each other at the same phase position in the circumferential direction as 1 group, and the combination includes 5 or more groups, specifically, 6 groups, or 12 groups in total, which are different from each other in the circumferential direction.

The number of the tuckers 37 (hereinafter, referred to as end tuckers 37b) provided at the right end portion of the lateral transfer auger 29 is 4 in a state where the phases are different from each other by 90 degrees in the circumferential direction with respect to the screw cylinder 36.

As shown in fig. 4, the spiral drum 36 is rotatably supported by the left and

right side walls

26, 27 via left and

right center shafts

43, 44. Inside the spiral drum, a first eccentric support shaft 48 and a second eccentric support shaft 58 as support shafts are provided at positions eccentric to the axial center P1 of the

central shafts

43 and 44. The spiral drum rotates around the axial center P1 of the

central shafts

43, 44, and the first eccentric support shaft 48 and the second eccentric support shaft 58 can be maintained at the same position when viewed from the side even when the spiral drum 36 rotates.

An inlet side insertion body 37a is supported on an outer peripheral portion of the first eccentric support shaft 48 via a holding portion 50. The inlet side insertion body 37a is supported so as to be rotatable about a lateral axis P2 of the first eccentric support shaft 48. The base end side portion 50a of the holding portion 50 is fitted to the first eccentric support shaft 48, and the holding portion 50 is supported to be relatively rotatable. The holding portion 50 holds the inner peripheral end of the inlet side insertion body 37a at an extension portion extending radially outward from the base end side portion 50 a.

A recessed portion 52 into which the inner end portion of the inlet-side dial-in body 37a is inserted is formed in an extended portion of the holding portion 50 so as to extend in the radial direction. In a state where the inlet side insertion body 37a is inserted into the recessed portion 52, a tightening tool 54 made of a bolt and a nut is attached to the holding portion 50 and the inlet side insertion body 37a in a state where the holding portion 50 and the inlet side insertion body 37a are inserted through the axial direction of the first eccentric support shaft 48.

The inlet side insertion body 37a is fixed to the holding portion 50 by attaching and tightening the tightening tool 54. The portion to be tightened by the tightening object 54 corresponds to the tightening target portion 50 b.

As shown in fig. 4, the proximal end portion 50a of the holding portion 50 is narrower in width in the axial direction than the portion 50b to be tightened of the tightening tool 54. The holding portions 50 are disposed in a state of being close to each other in the axial direction, and the adjacent tightening pieces 54 are overlapped with each other in the axial direction.

When the right central shaft 43 of the traverse auger 29 is rotationally driven and the screw drum 36 is rotated counterclockwise about the axial center P1 of the central shaft 43 in fig. 3, the inlet side drawer 37a follows the axial center P2 of the first eccentric support shaft 48. The end-side engaging body 37b rotates around the axial center P3 of the second eccentric support shaft 58. Therefore, as shown in fig. 2 and 3, the distal end turning trajectories Q of the distal end portions of the inlet side insertion body 37a and the end side insertion body 37b are different from each other when viewed from the side of the body.

At this time, the distance between the slide guide 51 provided on the circumferential surface of the screw drum 36 and the first and second

eccentric support shafts

48 and 58 changes depending on the rotational phase, and the respective drawer members 37 rotate while moving in and out of the screw drum 36.

(other embodiments)

(1) In the above embodiment, 6 dial-in bodies are provided in a state of different phases in the circumferential direction, but instead of this configuration, 5 or 7 or more dial-in bodies may be provided in a state of different phases in the circumferential direction.

(2) In the above embodiment, the case where the tightening pieces 54 overlap each other in the axial direction of the support shaft 48 is shown, but instead of this configuration, the tightening pieces 54 may not overlap each other in the axial direction.

(3) In the above embodiment, the base end side portion 50a of the holding portion 50 is narrower than the width of the part 50b to be tightened, but instead of this configuration, the base end side portion 50a may be the same width as the part 50b to be tightened, or the base end side portion 50a may be wider than the part 50b to be tightened.

(4) In the above embodiment, the end side inserting body 37b having the tip end turning locus Q different from that of the inlet side inserting body 37a is provided on the one end side in the left-right direction of the lateral transfer auger 29, but instead of this configuration, the end side inserting body 37b may have the same tip end turning locus Q as that of the inlet side inserting body 37 a.

(5) In the above embodiment, the number of the inlet side insertion bodies 37a is larger than that of the end side insertion bodies 37b, but instead of this configuration, the inlet side insertion bodies 37a may have the same number as that of the end side insertion bodies 37b or may have a smaller number than that of the end side insertion bodies 37 b.

(6) In the above embodiment, the number of the inlet side insertion bodies 37a is 6 in a state different from each other for each 60 degrees phase, and the number of the end side insertion bodies 37b is 4 in a state different from each other for each 90 degrees phase.

(availability in industry)

The utility model discloses can be applicable to harvesters such as combine, corn harvester.

Claims

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

comprising: a harvesting part for harvesting crops; and a crop carrying device for carrying the harvested crops to the rear side of the machine body,

the harvesting part is provided with: a harvesting portion frame having left and right side walls; and a transverse transfer auger, which is rotationally driven in a state of crossing the left and right side walls, transfers crops in the machine body width direction, and transfers the crops to the inlet of the crop transfer device,

the lateral transfer auger comprises: a cylindrical spiral drum having a spiral blade for transporting a crop on an outer circumferential portion thereof and rotating around a horizontal axis; and a plurality of poking-in bodies which are in and out relative to the spiral roller along with the rotation of the spiral roller and rotate together with the spiral roller to poke the crops into the rear part of the machine body,

the transverse transfer auger has at least 5 of the dial-in bodies in a state of different phases in a circumferential direction at a portion corresponding to an inlet of the crop conveying device.

2. A harvester according to claim 1,

the horizontal transfer auger is provided with a combination of 2 adjacent dial-in bodies at the same position in the circumferential direction,

the combination is provided at 5 or more positions different in position in the circumferential direction of the spiral drum.

3. A harvester according to claim 1,

the spiral drum has, on an inner peripheral side thereof: a support shaft that supports an inner end of the dial-in body; a holding portion that is externally fitted and supported to the support shaft and supports an inner peripheral end portion of the dial-in body; and a tightening tool that is tightened along an axial direction of the support shaft in a state where the dial-in body is held by the holding portion, and fixes the dial-in body to the holding portion,

the tightening pieces of the holding portions adjacent in the axial direction overlap with each other in the axial direction.

4. A harvester according to claim 2,

5. A harvester according to claim 3,

the outer fitting support of the holding portion is narrower in width in the axial direction at a base end side portion of the support shaft than at a portion of the holding portion that is tightened by the tightening tool.

6. A harvester according to claim 4,

7. A harvester according to any one of claims 1 to 6,

the transverse transfer auger has a dial-in body provided at one end portion side in the left-right direction of the transverse transfer auger, and a tip end turning locus of a tip end portion of the dial-in body rotating with rotation of the spiral drum as viewed from a side of a body is different from a tip end turning locus of the dial-in body corresponding to an entrance of the crop conveying device.

8. A harvester according to claim 7,

the number of the plunging bodies corresponding to the inlet of the crop conveying device is greater than the number of the plunging bodies positioned on the end portion side.

9. A harvester according to any one of claims 1, 2, 3, 4, 5, 6, 8,

the plunging bodies corresponding to the inlet of the crop carrying device are 6 in a state different for every 60 degrees of phase in the circumferential direction with respect to the helical drum.

10. A harvester according to claim 7,

the number of the plunging bodies located at one end portion side in the left-right direction of the lateral transfer auger is 4 in a state different in phase every 90 degrees in the circumferential direction with respect to the spiral drum.