Harvesting Machine

Abstract

To address the desire for a harvesting machine preventing planted grain culms from being easily caught by an outer periphery part of a reel frame, when a raking reel rakes the planted grain culms.SOLUTION: A harvesting machine comprises a raking reel 10 for raking planted grain culms. The raking reel 10 includes a rotary shaft 17 being rotatable around a rotation axis X2 extending along a horizontal direction of a machine body, left / right reel frames 18 supported by the rotary shaft 17 and integrally rotatable with the rotary shaft 17 around the rotation axis X2, a plurality of tine support members 19 provided at intervals apart around the rotation axis X2 across the outer periphery part of the left reel frame 18 and the outer periphery part of the right reel frame 18, and a plurality of tines 20 provided at the plurality of tine support members 19 respectively at intervals apart in the rotation axis X2 direction and raking the planted grain culms. The outer peripheral shape of the reel frames 18 is formed in a circular shape.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a harvester. [Background technology]

[0002] Conventionally, a known harvester is, for example, the harvester described in Patent Document 1. The harvester described in Patent Document 1 is equipped with a raking reel (referred to as "raking reel

[10] " in the document) that raks in planted culms. The raking reel is provided with a rotating shaft (reel shaft

[15] in the literature) that can rotate around a rotation axis (reel shaft core [P] in the literature) that extends along the left-right direction of the machine body, left and right reel frames (side plates

[14] in the literature) that are supported by the rotating shaft and can rotate integrally with the rotating shaft around the rotation axis, a number of tine support members (tine support bar

[17] in the literature) that are spaced apart around the rotation axis from the outer periphery of the left reel frame to the outer periphery of the right reel frame, and a number of tines (tines

[18] in the literature) that are spaced apart on each of the tine support members in the direction of the rotation axis and act to rave into the planted stalks. The reel frame is provided with a number of arms (arms

[142] in the literature) that extend radially from its center. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-112977 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the harvester described in Patent Document 1, the outer periphery of the reel frame (referred to in the document as "the tip [142a] of the arm

[142] ") is angular. Therefore, when the reel is raking in the planted culms, the planted culms are likely to get caught on the outer periphery of the reel frame.

[0005] In view of the above situation, there is a demand for a harvester in which the planted culms are less likely to get caught on the outer periphery of the reel frame when the raking reel rakes in the planted culms. [Means for solving the problem]

[0006] The present invention is characterized in that the harvester is provided with a raking reel for raking in planted stalks, the raking reel having a rotating shaft rotatable about a rotation axis extending along the left-right direction of the machine body, left and right reel frames supported by the rotating shaft and rotatable integrally with the rotating shaft about the rotation axis, a plurality of tine support members provided at intervals around the rotation axis across an outer periphery of the left reel frame and an outer periphery of the right reel frame, and a plurality of tines provided at intervals in the direction of the rotation axis on each of the plurality of tine support members for raking in the planted stalks, the outer periphery of the reel frame being formed into a circular shape. The reel frame is constructed from a disk-shaped member, and a bent portion is formed on the outer periphery of the reel frame, which is annular around the entire outer periphery of the reel frame and bent toward the rotational axis direction, and a flange portion is formed on a portion of the outer periphery of the reel frame radially outward from the bent portion, which is annular around the entire outer periphery of the reel frame and extends along the rotational axis direction, and the bent portion and the flange portion form a recess that is annular around the entire outer periphery of the reel frame and is open toward the rotational axis direction in a cross-sectional view.

[0007] According to this characteristic configuration, the outer periphery of the reel frame is formed in a circular shape, so that the outer periphery of the reel frame is not angular. As a result, when the raking reel raks the planted culms, the planted culms are less likely to get caught on the outer periphery of the reel frame.

[0008] In addition, since the outer periphery of the reel frame is formed in a circular shape, the support members for supporting the lateral ends of the tine support members can be provided at any location on the outer periphery of the reel frame, allowing the reel frame to be used for multiple pulling reels with different numbers of tine support members.

[0009]

[0010] According to this characteristic configuration, the weight of the reel frame can be reduced by using a thin disc-shaped member.

[0011]

[0012] According to this characteristic configuration, the bent portion acts as a rib, thereby improving the strength of the reel frame.

[0013] Furthermore, in the present invention, it is preferable that support members for supporting lateral ends of the tine support members are provided at each of the locations on the outer periphery of the reel frame corresponding to the multiple tine support members, and that the support members are supported by the bent portions.

[0014] According to this feature, the lateral end of the tine support member is supported by the bent portion via the support member, whereby the tine support member can be securely supported by the bent portion.

[0015] Furthermore, in the present invention, it is preferable that the reel frame be formed in a concave shape so as to be positioned to one side in the direction of the rotation axis as it approaches the center of the reel frame from the outer periphery of the reel frame.

[0016] According to this characteristic configuration, the strength of the reel frame can be improved by the shape of the reel frame being generally recessed toward one side in the direction of the rotation axis.

[0017] Furthermore, in the present invention, it is preferable that the reel frame is formed in a concave shape so that it is located toward the left and right center of the take-in reel in the direction of the rotation axis as it approaches the center of the reel frame from the outer periphery of the reel frame.

[0018] According to this characteristic configuration, the reel frame is not formed in a shape that bulges outward in the direction of the rotation axis. This makes it possible to prevent the take-in reel from becoming large in the direction of the rotation axis even if the reel frame is formed in a shape that is generally recessed on one side in the direction of the rotation axis.

[0019] Furthermore, in the present invention, it is preferable that the reel frame is formed with an opening that opens toward the direction of the rotation axis.

[0020] According to this characteristic configuration, the opening can reduce the weight of the reel frame. Also, the operator can visually check the working status (for example, the status of row alignment) through the opening.

[0021] The present invention is characterized in that the harvester is provided with a raking reel for raking in planted stalks, the raking reel having a rotating shaft rotatable about a rotation axis extending along the left-right direction of the machine body, left and right reel frames supported by the rotating shaft and rotatable integrally with the rotating shaft about the rotation axis, a plurality of tine support members provided at intervals around the rotation axis across the outer periphery of the left reel frame and the outer periphery of the right reel frame, and a plurality of tines provided at intervals in the direction of the rotation axis on each of the plurality of tine support members for raking in the planted stalks, the outer periphery of the reel frame being formed in a circular shape, The reel frame includes an annular outer peripheral frame constituting an outer peripheral portion of the reel frame, a support portion provided in a center portion of the reel frame and supported by the rotating shaft, and a plurality of legs provided at intervals around the rotating shaft center between the outer peripheral frame and the support portion. The outer peripheral frame is formed of a channel-shaped member and is open toward the radially outward side of the reel frame.

[0022] According to this characteristic configuration, the outer periphery of the reel frame is formed in a circular shape, so that the outer periphery of the reel frame is not angular. As a result, when the raking reel raks the planted culms, the planted culms are less likely to get caught on the outer periphery of the reel frame. In addition, since the outer periphery of the reel frame is formed in a circular shape, the support members for supporting the lateral ends of the tine support members can be provided at any location on the outer periphery of the reel frame, allowing the reel frame to be used for multiple pulling reels with different numbers of tine support members. According to this characteristic configuration, an opening is provided between adjacent legs between the outer frame and the support. This allows the weight of the reel frame to be reduced by the opening. In addition, the operator can visually check the working status (for example, the status of row alignment) through the opening.

[0023] Furthermore, in the present invention, it is preferable that the legs are connected to the outer periphery frame.

[0024] According to this characteristic configuration, the legs and the outer peripheral frame are integrated together, which can improve the strength of the reel frame.

[0025] Furthermore, in the present invention, it is preferable that support members for supporting the lateral ends of the tine support members are provided at each of the locations on the outer periphery of the reel frame corresponding to the multiple tine support members, and that the support members are provided on a line in the extension direction of the legs when viewed from the side.

[0026] According to this feature, the tine support member is positioned on a line in the extension direction of the leg portion in a side view, so that the load acting on the tine support member can be firmly received by the leg portion.

[0027] Furthermore, in the present invention, it is preferable that the support member is provided at a connection point between the outer peripheral frame and the leg portion.

[0028] According to this feature, the lateral ends of the tine support members are supported at the joints between the outer frame and the legs via the support members, so that the tine support members can be firmly supported by the joints between the outer frame and the legs, which are the highly rigid parts of the reel frame. [Brief description of the drawings]

[0029] [Figure 1] FIG. [Diagram 2] FIG. 2 is a plan view showing the front of the combine harvester. [Diagram 3] FIG. [Figure 4] 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 4 is a view taken along the arrow V in FIG. [Figure 6] FIG. 11 is a left side view showing a pulling reel according to another embodiment. [Figure 7] FIG. 7 is a view taken along the arrow VII in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] An embodiment of the present invention will be described with reference to the drawings. In the following description, the direction of the arrow F is the "front side of the aircraft body," the direction of the arrow B is the "rear side of the aircraft body," the direction of the arrow L is the "left side of the aircraft body," and the direction of the arrow R is the "right side of the aircraft body."

[0031] [Overall configuration of the combine] 1 and 2 show a whole-culm input combine harvester (corresponding to the "harvest machine" of the present invention). This combine harvester is equipped with a traveling body 1. The traveling body 1 is equipped with a crawler traveling device 2 and a body frame 3 supported by the crawler traveling device 2. A reaping unit 4 that harvests planted culms is provided in front of the traveling body 1. A threshing device 5 that threshes all culms of the harvested culms is provided behind the reaping unit 4.

[0032] A grain storage tank 6 that stores grains obtained by threshing with the threshing device 5 is provided to the right of the threshing device 5. A driver's section 7 is provided in front of the grain storage tank 6. The driver's section 7 is equipped with a driver's seat 8. A grain discharge device 9 that discharges grains in the grain storage tank 6 is connected to the grain storage tank 6.

[0033] The harvesting section 4 is equipped with a raking reel 10 that rakes in the planted culms, a cutting blade 11 that cuts the planted culms, a raking auger 12 that rakes in the harvested culms, a feeder 13 that transports the harvested culms toward the threshing device 5, left and right weed splitting tools 14 that split the planted culms, and a harvesting frame 15 that supports these.

[0034] [Sweeping reel] As shown in Figures 1 to 3, the take-up reel 10 is provided with left and right support arms 16, a rotating shaft 17, left and right reel frames 18, a plurality of tine support members 19, a plurality of tines 20, and a tine position maintaining mechanism 21.

[0035] The left and right support arms 16 are supported at the rear of the cutting frame 15 so as to be vertically swingable about a swing axis X1 extending along the left-right direction of the machine body. Left and right cylinders 22 are provided for driving the left and right support arms 16 to swing vertically.

[0036] The rotating shaft 17 is provided between the tip of the left support arm 16 and the tip of the right support arm 16 so as to be rotatable about a rotation axis X2 extending along the left-right direction of the machine body. A belt transmission mechanism (not shown) that transmits power to the rotating shaft 17 is linked to the right end of the rotating shaft 17. When power is transmitted to the rotating shaft 17 by the belt transmission mechanism, the pick-up reel 10 rotates about the rotation axis X2.

[0037] The reel frames 18 are supported by the rotating shaft 17 so as to be rotatable integrally with the rotating shaft 17 about the rotation axis X2. The left reel frame 18 is provided on the left end of the rotating shaft 17. The right reel frame 18 is provided on the right end of the rotating shaft 17. The left reel frame 18 and the right reel frame 18 are configured symmetrically with respect to each other.

[0038] In this embodiment, five tine support members 19 are provided. The five tine support members 19 are provided at equal intervals around the rotation axis X2 from the outer periphery of the left reel frame 18 to the outer periphery of the right reel frame 18. The tine support members 19 are made of round pipes.

[0039] The tines 20 are for raking in the planted stalks. The tines 20 are provided on each of the five tine support members 19 at intervals in the direction of the rotation axis X2, with the tines extending downward from the tine support member 19. The tines 20 are provided in a position extending downward from the tine support member 19. The tines 20 include outer tines 20A provided on both lateral ends of the tine support member 19, and inner tines 20B located between the left and right outer tines 20A. The outer tines 20A are made of a round bar material having an outer diameter larger than that of the inner tines 20B. The adjacent inner tines 20B are integrally formed from a single round bar material.

[0040] The tine position maintaining mechanism 21 is for maintaining the tines 20 in a position in which they extend downward from the tine support member 19. The tine position maintaining mechanism 21 is provided laterally adjacent (to the right of) the right reel frame 18.

[0041] [Reel frame] 3 and 4, the reel frame 18 is made of a disk-shaped member. That is, the outer periphery of the reel frame 18 is formed in a circular shape. The outer periphery of the reel frame 18 is formed with a bent portion 18a that is annular around the entire periphery of the reel frame 18 and bent toward the rotation axis X2.

[0042] A flange portion 18b is formed on the outermost edge of the outer periphery of the reel frame 18. The flange portion 18b is formed in an annular shape around the entire outer periphery of the reel frame 18. In other words, the flange portion 18b is located radially outward of the reel frame 18 with respect to the bent portion 18a. The portion of the outer periphery of the reel frame 18 that is located between the bent portion 18a and the flange portion 18b is formed in an annular shape around the entire periphery.

[0043] The reel frame 18 is formed in a recessed shape so as to be located on one side of the direction of the rotation axis X2 as it approaches the center of the reel frame 18 from the outer periphery of the reel frame 18. In this embodiment, the reel frame 18 is formed in a recessed shape so as to be located on the left-right center side of the pull-in reel 10 in the direction of the rotation axis X2 as it approaches the center of the reel frame 18 from the outer periphery of the reel frame 18. A support portion 18c supported by the rotation shaft 17 is provided in the center of the reel frame 18.

[0044] The above-mentioned recessed portion (recess) 18d of the reel frame 18 is formed in a portion of the reel frame 18 that spans the bent portion 18a and the support portion 18c. In a cross-sectional view (see FIG. 4), the recess 18d is formed in a shape that inclines from the outer periphery of the reel frame 18 toward the center of the reel frame 18 so as to be positioned toward the left-right center of the pull-in reel 10 in the direction of the rotation axis X2 as it approaches the center of the reel frame 18. The end of the recess 18d on the center (support portion 18c) side of the reel frame 18 is formed in a shape that protrudes laterally outward in the direction of the rotation axis X2. The protruding portion is formed in a ring shape that spans the entire circumference, and is connected to the outer periphery of the support portion 18c from the inside laterally.

[0045] The recess 18d has an opening 18e that opens toward the rotation axis X2. In this embodiment, two openings 18e are formed and are arranged symmetrically with respect to the rotation axis X2. The openings 18e are formed in a circular shape. As shown in Figs. 1 and 2, the operator can visually check the working status (for example, the status of row alignment by the left grass dividing tool 14) from the operator's section 7 through the openings 18e of the left reel frame 18.

[0046] 3 and 5, support members 23 that support horizontal ends of the tine support members 19 are provided at locations on the outer periphery of the reel frame 18 that correspond to the five tine support members 19. Mounting members 24 to which the support members 23 are attached are provided on the outer periphery of the reel frame 18. The mounting members 24 are supported by the bent portions 18a. The support members 23 are fixed to the mounting members 24 by bolts 25, and are supported by the bent portions 18a via the mounting members 24.

[0047] [Another embodiment] (1) In the above embodiment, the "reel frame" according to the present invention is constituted by reel frame 18. However, the "reel frame" according to the present invention is not limited to reel frame 18. For example, the "reel frame" according to the present invention may be constituted by reel frame 26.

[0048] 6 and 7, the reel frame 26 includes an annular outer periphery frame 27 constituting the outer periphery of the reel frame 26, a support portion 28 provided in the center of the reel frame 26 and supported by the rotation shaft 17, and a plurality of legs 29 (five in this embodiment) provided at intervals around the rotation axis X2 across the outer periphery frame 27 and the support portion 28. The outer periphery frame 27 is formed of a groove-shaped member that opens toward the outside in the radial direction of the reel frame 26. The support portion 28 is formed of a member that is circular in side view.

[0049] The leg portion 29 is connected to the outer peripheral frame 27. The leg portion 29 is configured by a pair of plate portions 29a provided at an interval around the rotation axis X2. Here, in adjacent legs 29, a plate portion 29a (hereinafter referred to as a "first plate portion 29a") facing the other leg portion 29 in one leg portion 29 and a plate portion 29a (hereinafter referred to as a "second plate portion 29a") facing the one leg portion 29 in the other leg portion 29 are connected by a connecting portion 29b. That is, the first plate portion 29a, the second plate portion 29a, and the connecting portion 29b are integrally configured by a substantially V-shaped steel strip.

[0050] Support members 23 that support lateral ends of the tine support members 19 are provided at locations on the outer periphery frame 27 corresponding to the five tine support members 19. The outer periphery frame 27 is provided with mounting members 24 to which the support members 23 are attached. The support members 23 are provided on line L that is a line in the extension direction of the legs 29 in a side view and passes through the rotation axis X2. Specifically, the support members 23 are provided at the connection points between the outer periphery frame 27 and the legs 29.

[0051] The number of legs 29 is not limited to five, so long as there is more than one. That is, two, three, four, six or more legs 29 may be provided. Furthermore, the outer peripheral frame 27 is not limited to the groove-shaped member described above. For example, the outer peripheral frame 27 may be made of a round pipe.

[0052] (2) In the above embodiment, five tine support members 19 are provided. However, the number of tine support members 19 is not limited to five. For example, six, seven, eight or more tine support members 19 may be provided.

[0053] (3) In the above embodiment, the bent portion 18a is formed on the outer periphery of the reel frame 18. However, the bent portion 18a does not have to be formed on the outer periphery of the reel frame 18.

[0054] (4) In the above embodiment, the reel frame 18 is formed in a recessed shape so as to be positioned toward the left and right center of the pull-in reel 10 in the direction of the rotation axis X2 as it approaches the center of the reel frame 18 from the outer periphery of the reel frame 18. However, the reel frame 18 may be formed in a recessed shape so as to be positioned toward the lateral outer side in the direction of the rotation axis X2 as it approaches the center of the reel frame 18 from the outer periphery of the reel frame 18. Alternatively, the reel frame 18 does not have to be formed in a recessed shape so as to be positioned toward one side in the direction of the rotation axis X2 as it approaches the center of the reel frame 18 from the outer periphery of the reel frame 18.

[0055] (5) In the above embodiment, the opening 18e is formed in the reel frame 18. However, the reel frame 18 does not necessarily have to have the opening 18e. [Industrial Applicability]

[0056] The present invention can be used in corn harvesters as well as whole-culm input combines. [Explanation of symbols]

[0057] 10. Sweeping reel 17 Rotation axis 18 Reel Frame 18a Bending section 18b Flange part 18e aperture 19 Tine support member 20 Tyne 23 Support member 26 Reel Frame 27 Periphery frame 28 Support part 29 Legs L line X2 Rotation axis

Claims

1. A harvester having a raking reel for raking in planted culms, The raking reel has a rotating shaft rotatable about a rotation axis extending along the left-right direction of the machine body, left and right reel frames supported by the rotating shaft and rotatable integrally with the rotating shaft about the rotation axis, a plurality of tine support members provided at intervals around the rotation axis across an outer periphery of the left reel frame and an outer periphery of the right reel frame, and a plurality of tines provided at intervals in the direction of the rotation axis on each of the plurality of tine support members and acting to rave into the planted stalks, The outer periphery of the reel frame is formed in a circular shape, The reel frame is formed of a disk-shaped member, a bent portion is formed on an outer periphery of the reel frame, the bent portion being annular about the entire periphery of the reel frame and bent toward the rotation axis center direction, a flange portion is formed in a radially outward portion of the outer periphery of the reel frame relative to the bent portion, the flange portion being annular about the entire periphery of the outer periphery of the reel frame and extending along the direction of the rotation axis, A harvester in which the bent portion and the flange portion form a recess that is annular around the entire outer periphery of the reel frame and that is open in a direction along the rotation axis when viewed in cross-section.

2. a support member for supporting a lateral end of the tine support member is provided at each of the locations of the outer periphery of the reel frame corresponding to the plurality of tine support members; The harvester according to claim 1 , wherein the support member is supported at the bent portion.

3. The harvester according to claim 1 or 2, wherein the reel frame is formed in a concave shape so as to be positioned on one side of the rotation axis direction as it approaches the center of the reel frame from the outer periphery of the reel frame.

4. The harvester according to claim 3, wherein the reel frame is formed in a concave shape so as to be positioned toward the left and right center of the raking reel in the direction of the rotation axis as it approaches the center of the reel frame from the outer periphery of the reel frame.

5. The harvester according to claim 1 , wherein the reel frame is formed with an opening that opens toward the rotation axis center direction.

6. A harvester having a raking reel for raking in planted culms, The raking reel has a rotating shaft rotatable about a rotation axis extending along the left-right direction of the machine body, left and right reel frames supported by the rotating shaft and rotatable integrally with the rotating shaft about the rotation axis, a plurality of tine support members provided at intervals around the rotation axis across an outer periphery of the left reel frame and an outer periphery of the right reel frame, and a plurality of tines provided at intervals in the direction of the rotation axis on each of the plurality of tine support members and acting to rave into the planted stalks, The outer periphery of the reel frame is formed in a circular shape, the reel frame has an annular outer circumferential frame constituting an outer circumferential portion of the reel frame, a support portion provided in a center portion of the reel frame and supported by the rotation shaft, and a plurality of legs provided at intervals around the rotation shaft center across the outer circumferential frame and the support portion, The outer peripheral frame is formed of a channel-shaped member and is open toward the radially outward side of the reel frame.

7. The harvester of claim 6 , wherein the legs are connected to the perimeter frame.

8. a support member for supporting a lateral end of the tine support member is provided at each of the locations of the outer periphery of the reel frame corresponding to the plurality of tine support members; The harvester according to claim 7 , wherein the support member is provided on a line in an extension direction of the leg portion in a side view.

9. The harvester according to claim 8 , wherein the support members are provided at connection points between the outer periphery frame and the legs.

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