JPH07163227A - Reaping section of combine - Google Patents

Abstract

PURPOSE:To facilitate works such as the attachment, maintenance, etc., of a rice straw-reaping member. CONSTITUTION:In the reaping section of a combine, a hydraulic motor 31 for driving the second reaping blades is disposed in a reaping section on the opposite side of a carrying elevator 13 on whose other side an operation seat is placed, and a hydraulic controller 33 having hydraulic valves, etc., which are connected to a position-controlling cylinder and the hydraulic motor 31 for driving the second reaping blades to control the cylinder and the motor, is disposed in the reaping section near to the hydraulic motor 31 for driving the second blades.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester.

[0002]

2. Description of the Related Art In the publicly known Japanese Utility Model Publication No. 63-4621, there is provided a traveling device provided at a lower position of an equipment frame,
Threshing device provided at an upper position on one side of the machine frame, a Glen tank provided at an upper position on the other side of the machine frame, a control section provided on the front side of the Glen tank, and a front side of the control section. It consists of a mowing unit provided at a position and a transport elevator which is located on the side of the control unit and connects the mowing unit and the threshing device. The mowing unit scrapes the grain culms of the field. It describes a combine provided with a reel, a first cutting blade for cutting tips, and a retractable second cutting blade for cutting roots.

[0003]

In the above-mentioned known example, the cylinder of the second cutting blade is shown, but the specific mounting structure is not described.

[0004]

SUMMARY OF THE INVENTION The present invention facilitates mounting and maintenance.

[0005]

Therefore, according to the present invention, a traveling device 2 provided at a lower position of a machine body frame 1, a threshing device 3 provided at an upper position of one side 4 of the machine body frame 1, The Glen tank 5 provided at the upper position on the other side 6 of the machine frame 1, the control unit 7 provided at the front side of the Glen tank 5, the mowing unit 8 provided at the front position of the control unit 7, and the control unit The transfer reel 13 is located on the side of the part 7 and connects the mowing part 8 and the threshing device 3 to the mowing part 8. The mowing part 8 has a position adjustable scraping reel for scraping grain culms in the field. 15, the first cutting blade 20 for cutting the tips,
In the combine provided with the second cutting blade 25 which is operated by the second cutting blade driving hydraulic motor 31 for root cutting, the second cutting blade driving hydraulic motor 31 is provided in the transport elevator 1
3 is provided in the cutting section 8 on the side opposite to the control section 7, and the position adjusting cylinder and the second cutting blade driving hydraulic pressure are provided in the cutting section 8 near the second cutting blade driving hydraulic motor 31. The combine harvester is provided with a hydraulic control unit 33 having a hydraulic valve and the like connected to and controlling the motor 31.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. FIG. 1 and FIG. 2 are schematic views of a combine, 1 is a machine frame, 2 is a traveling device provided at a lower position of the machine frame 1,
Reference numeral 3 denotes a threshing device provided on one of the left and right sides of the upper position of the body frame 1, and 5 denotes the other side 6 which is a side portion of the threshing device 3.
The gren tank is provided on the front side of the glen tank 5, the control section having a driver's seat and the like is provided on the front side of the glen tank 5, and the mowing section 8 is a mowing section provided at the front position of the machine body frame 1. The reaping unit 8 forms a reaping unit frame 12 with the left and right side walls 9, the rear wall 10 and the bottom wall 11, and the rear wall 1 of the reaping unit frame 12 is formed.
0 and the threshing device 3 are connected by a transport elevator 13. A grass body 14 is provided at the frontmost position of the side wall 9, and a take-up reel 15 is provided above the grass body 14.
The take-up reel 15 is attached to the tips of a pair of left and right attachment arms 16 so that the front and rear positions can be adjusted, and the base portion of the attachment arms 16 is rotatably attached to the cutting unit frame 12 side. Therefore,
The take-up reel 15 can be adjusted in the front-rear direction and the height. 17
Is a front-back position adjusting cylinder, and 18 is a height adjusting cylinder.

At the front edge of the bottom wall 11 located below the take-up reel 15, the first cutting blade 2 for cutting the tip side of the grain culm.
0 is set. The first cutting blade 20 has a well-known configuration, and is constituted by a so-called left and right hair clipper sliding blade and a fixed blade. A left and right auger 21 is axially mounted behind the first cutting blade 20. The mowing unit 8 is configured to move up and down together with the transport elevator 13 with respect to the machine body about the upper rotary shaft 22 of the transport elevator 13, so that the height of the first cutting blade 20 can be changed, and the cutting height can be adjusted. Do. Two
3 is a vertical moving cylinder for the reaper. A second cutting blade 25, which will be described in detail below, is provided between the rear surface of the rear wall 10 of the cutting unit frame 12 of the cutting unit 8 and the front end of the traveling device 2.
The second cutting blade 25 cuts from the root side the grain culm remaining in the field after the first cutting blade 20 has cut off the tips. The second cutting blade 25 is attached to a second cutting blade mounting frame 26 in the left-right direction, and the second cutting blade mounting frame 26 is
The lower part of the supporting rod 27 in the vertical direction is attached to the left and right sides thereof, and the tips of the arms 28 are axially attached to the upper and lower parts of the supporting rod 27, respectively, and the supporting rod 27 and the arm 28 constitute a vertical link 29. 10 and second cutting blade mounting frame 2
A second cutting blade up / down cylinder 30 is provided between the two. Reference numeral 31 is a second cutting blade driving hydraulic motor that operates the second cutting blade 25.

Then, the rear wall 10 of the reaping section frame 12
On the side opposite to the control part 7, the cylinders for adjusting the position of the take-up reel 15 such as the front-rear position adjusting cylinder 17 and the height adjusting cylinder 18 and the second cutting blade up and down for the second cutting blade 25. A hydraulic control unit 33 including a hydraulic valve for operating the hydraulic pressure of the cylinder 30, the second cutting blade driving hydraulic motor 31 for operating the second cutting blade 25, and the like is provided.
Is connected to the front-rear position adjusting cylinder 17 and the like by a hydraulic pipe 34, and a one-touch coupler 36 is provided at the other end of a connection hose 35, one end of which is connected to a hydraulic control unit 33, and the one-touch coupler 36 is provided on the machine body frame 1 side. Connect the connection hose connected to the hydraulic circuit. That is, the control unit 7 is provided on either the left or right side of the machine body frame 1, the transport elevator 13 is located on the side of the control unit 7, and the tip of the transport elevator 13 is positioned at the rear wall 1 of the cutting unit frame 12.
Since it is attached to No. 0, the hydraulic pressure control unit 33 is provided on the side opposite to the control unit 7 (one side 4 in the embodiment) so that maintenance can be easily performed. The second cutting blade driving hydraulic motor 31 is also arranged in the vicinity of the hydraulic control unit 33 to facilitate piping.

The bottom plate 3 of the transfer elevator 13
As shown in FIG. 5, when the mowing unit 8 is at the lower position,
The front part of the bottom plate 38 with respect to the middle part is formed to have a steep lower slope on the front side, and the rear part is formed to have a gentle slope. When the reaper 8 is moved upward when turning the machine body, the transport elevator 1
The rear side of the bottom plate 38 of No. 3 is configured to be steeply inclined toward the threshing device 3, and when the cutting unit 8 is moved up to the standby position for turning or the like, the transport elevator 1
The reaper 8 is moved upward until the rear side of the bottom plate 38 of No. 3 is steeply inclined. That is, a chain 55 is provided in the transport elevator 13, and slats 56 are provided at predetermined intervals on the chain 55. The slats 56 are made of metal in order to strengthen the transport force, and the upper surface of the bottom plate 38 and the slats 56 are formed. Since a gap is formed between the lower edge and the lower edge so that the lower edge does not come into contact with the lower edge, the grain culm conveyed by the slat 56 acts like a brush during the work to supply the grain shredded to the threshing device 3. , When the reaper 8 is moved up, there is no grain culm moving in the transport elevator 13, so the grains are returned to the reaper 8, so when the reaper 8 is moved up, the bottom plate 38 The grain is made to flow down to the threshing device 3 by steeply inclining. FIG. 8 shows slats 5.
6 is another embodiment.

Therefore, the first cutting blade 20 is the take-up reel 15
, But the posture of the grain culm is improved to ensure the mowing work. However, since the second mowing blade 25 mows the grain culm without such assistance, the mowing work may not be performed well,
The larger the height interval between the first cutting blade 20 and the second cutting blade 25, the more difficult the mowing by the second cutting blade 25 becomes. Therefore, when the operating speed of the second cutting blade 25 can be changed, and when the length of the grain stalk that the second cutting blade 25 cuts becomes long, the second cutting blade 25 is proportionally cut. It is configured to increase the operating speed. In the embodiment, the control motor 39 for changing the angle of the swash plate inside the second cutting blade driving hydraulic motor 31 is provided, and the rotation speed of the output shaft of the second cutting blade driving hydraulic motor 31 can be changed, and the cutting unit is provided. Height detection sensor 4 for automatic cutting height control that allows mowing work at a set height of 8
0 is used, and the height of the mowing unit 8 detected by this is set as the height of the first cutting blade 20, and the control motor 39 is operated in correspondence with the height of the first cutting blade 20 to operate the second cutting blade. The drive hydraulic motor 31 is configured to change speed. The height detection sensor 40 is used for the mowing unit 8 or the transportation elevator 1.
It may be provided at a desired position such as 3, but in the embodiment, the angle of the transport elevator 13 with respect to the upper rotary shaft 22 is detected by the potentiometer.

Further, since the height of the second cutting blade 25 can be changed, the height of the second cutting blade 25 is not simply made to correspond to the height of the first cutting blade 20, but the ACH sensor 41 for the second cutting blade 25 (height detecting sensor). ) Is used to detect the interval between the first cutting blade 20 and the second cutting blade 25, and the length of the grain culm to be cut by the second cutting blade 25 is determined based on this interval, and the corresponding Let the second blade 25
It may be configured to change the operating speed of the. 42 is a wobble drive for transmitting the output of the second cutting blade driving hydraulic motor 31 to the second cutting blade 25, 43 is an electromagnetic solenoid valve, 44
Is a motor for driving the discharge auger 45 that conveys the grains in the grain tank 5 to a truck or the like near the field.
12 to 16 show an embodiment in which the second cutting blade 25 is slidable in the left-right direction with respect to the mowing section frame 12, and the second cutting blade mounting frame 26 of the second cutting blade 25 is a vertical link. 29 is slidably mounted on a mounting member 46 provided on a lower portion of a support rod 27 which constitutes 29, and a slide cylinder 47 is provided between the mounting member 46 and the second cutting blade mounting frame 26.
The second cutting blade 25 has the same lateral width as the first cutting blade 20,
Do not mow uncut grain culms that would normally be mowed by the second mowing blade 25 (Fig. 13) due to the inner ring difference in the case of swivel mowing (Fig. 14). I am configuring.

Then, the slide of the second cutting blade 25 is reset by interlocking with the operation of the power steering lever for operating the traveling device 2 so as to move to the right when turning left, and by the backward movement of the switch or the power steering lever. In some cases, it is configured to do so (FIG. 15). FIG. 16 shows an example of the slide controller 48 (FIG. 12). One side 49 is attached to the second cutting blade attachment frame 26 on the moving side, and the other 50 is attached to the attachment member 46 on the fixed side. A switch 51 is provided, and the left and right switches 5 are provided on the other side.
A contact body 52 that contacts one of the two is provided. Figure 1
7 is an embodiment in which the second cutting blade mounting frame 26 of the second cutting blade 25 is constituted by a frame body 53, and the frame body 53 is slid. In FIG. 18, the second cutting blade mounting frame 26 of the second cutting blade 25 is configured by a frame body 53, and the frame body 53 is mounted on the mounting member 46 provided on the up-down link 29.
A plurality of engaging holes (not shown) are formed in each of the holes, and selected ones of the engaging holes and the mounting member 46 are fixed by a pin 54. FIG. 19 shows an embodiment relating to turning on and off of the operation of the second cutting blade 25. 60 is a CPU, 61 is a grain culm presence / absence detection sensor, and 62 is the second cutting blade driving hydraulic motor 3.
A solenoid valve for turning on and off 1 is provided, and when the grain culm presence / absence detection sensor 61 detects that there is no grain culm, the second cutting blade 25 is stopped. The grain culm presence detection sensor 61
In the embodiment, the presence or absence is provided on the bottom plate 38 of the transport elevator 13 and the presence or absence is detected by the pressure of the grain culvert transported in the transport elevator 13, but the front side of the first cutting blade 20 or the first cutting blade 20 and It may be provided at a desired position such as between the second cutting blades 25. Reference numeral 63 denotes a reverse detection sensor, which stops the second cutting blade 25 when moving backward. Further, the second cutting blade 25 is stopped in conjunction with the operation of the HST lever 64 (Fig. 21). Reference numeral 65 is a mission, and 66 is a hydraulic continuously variable transmission (HST).

[0013]

[Operation] Next, the operation will be described. The present invention has the above-described configuration, and when the machine body moves forward, it is weeded by the grass body 14, scrapes the culm by the scraping reel 15, and the first cutting blade 20 cuts only the tip side of the culm and scrapes it. The tip grain culm scraped into the mowing unit frame 12 by the reel 15 is joined by the auger 21 to the attachment portion between the transport elevator 13 and the mowing unit frame 12, and is transported by the transport elevator 13 to be fed to the threshing device 3 and threshing. . Therefore, only the tip side of the grain culm is supplied to the threshing device 3, and the load on the threshing device 3 is reduced. When the aircraft further advances, the first cutting blade 20
Since the second cutting blade 25 is provided on the rear cutting unit frame 12, the second cutting blade 25 cuts the grain culm left uncut in the field by the first cutting blade 20 from the plant side.

Then, the rear wall 10 of the reaping section frame 12
On the side opposite to the control part 7, the cylinders for adjusting the position of the take-up reel 15 such as the front-rear position adjusting cylinder 17 and the height adjusting cylinder 18 and the second cutting blade up and down for the second cutting blade 25. A hydraulic control unit 33 is provided with a hydraulic valve for operating the hydraulic pressure of the cylinder 30, the second cutting blade driving hydraulic motor 31 for operating the second cutting blade 25, and the like. The one-touch coupler 36 is provided at the other end of the connection hose 35, which is connected to the front-rear position adjusting cylinder 17 and the like by the hydraulic pipe 34, and one end of which is connected to the hydraulic control unit 33, and the one-touch coupler 36 is provided with the hydraulic pressure provided on the machine body frame 1 side. Since the connection hose connected to the circuit is connected, the control unit 7 can be installed on either the left or right side of the fuselage frame 1.
Is provided, the transport elevator 13 is located on the side of the control section 7, and the tip of the transport elevator 13 is attached to the rear wall 10 of the mowing section frame 12. Since the hydraulic control unit 33 can be provided, maintenance can be easily performed.

When the reaping section 8 is removed from the transport elevator 13, the reaping section 8 can be removed from the transport elevator 13 by removing it at the one-touch coupler 36 without removing the hydraulic pipe 34 of each cylinder. Work becomes easy. Then, when the reaping unit 8 is moved upward when turning, the bottom plate 38 of the transport elevator 13 is configured such that the slope of the portion on the threshing device 3 side becomes steep. The shredded grains inside are guided by the steep inclination of the bottom plate 38 and all enter the threshing device 3, so loss is prevented. In addition, since the loss can be prevented as described above, since the metal slats 56 are provided in the chain in the transportation elevator 13 with a gap so as not to contact the upper surface of the bottom plate 38, the transportation force of the slats 56 can be reduced. To prevent clogging. Then, since the second cutting blade 25 cuts the grain culm without the assistance of the take-in reel 15,
The first cutting blade 20
Since the operation speed of the second cutting blade 25 can be increased as the height of the second cutting blade becomes higher, the cutting of the long remaining grain culm can be ensured.

Further, since the length of the residual grain culm is based on the height detection sensor 40 for automatic cutting height control of the reaper 8, it can be implemented with a simple structure. Further, when the ACH sensor 41 (height detection sensor) for the second cutting blade 25 is used, the first cutting blade 20 works together with the height detection sensor 40.
The distance between the second cutting blade 25 and the second cutting blade 25 can be detected, and if the length of the grain culm to be cut by the second cutting blade 25 is determined based on this distance, the length of the remaining grain culm can be more accurately determined. It is possible to change the operating speed of the second cutting blade 25 by judging. Then, the second cutting blade mounting frame 26 of the second cutting blade 25 is slidably mounted on the mounting member 46 provided at the lower portion of the support rod 27 that constitutes the vertical link 29, and the mounting member 46 and the second cutting blade are attached. Mounting frame 2
A cylinder 47 for sliding is provided between 6 and the second cutting blade 25
Since it is slidable in the left-right direction with respect to the mowing section frame 12, if the second cutting blade 25 is configured to have the same horizontal width as the first cutting blade 20, the inner uncut grain culm is usually caused by the inner ring difference. By sliding the second cutting blade 25 even in the case of cutting, the inner uncut grain culm is not cut, and the residual grain culm is not left uncut during the straightening operation.

Further, in the structure which is interlocked with the operation of the power steering lever for operating the direction of the traveling device 2, the sliding cylinder 47 automatically moves the second cutting blade 25 to the right when the left turning operation is performed, and the slide control section. 48, one switch 51
The contact body 52 comes into contact with the to stop the slide cylinder 47, and the slide cylinder 47 is operated so that the second cutting blade 25 is returned to the original state by the backward operation of the reset switch or the power steering lever, and the other switch is operated. 51
The contact body 52 comes into contact with and the slide cylinder 47 is stopped.

However, when the reaper 8 is moved up above a certain height due to turning or the like, the height detection sensor 40 detects it and the auger 21 and the transfer elevator 13 are not stopped, but the first reaper is cut. Stop the blade 20 and the second cutting blade 25,
The durability of the second cutting blade 25 is improved. Further, when the grain culm presence / absence detection sensor 61 is used instead of the height detection sensor 40, the grain culm presence / absence detection sensor 61 determines that the mowing operation is not performed, and stops the second cutting blade 25. Further, when the turning operation of the power steering lever is detected and the turning operation is detected, the second cutting blade 25 is stopped, and damage caused by the second cutting blade 25 sliding and biting a stone or the like during traveling of ridges, This is prevented by stopping the second cutting blade 25.

[0019]

[Advantageous Effects] The present invention provides a traveling device 2 provided at a lower position of the machine body frame 1, a threshing device 3 provided at one side 4 of the machine body frame 1 and an other side of the machine body frame 1. 6 a Glen tank 5 provided at an upper position, a control section 7 provided at the front side of the Glen tank 5, a cutting section 8 provided at a front position of the control section 7, and a side section of the control section 7. It consists of a transport elevator 13 that connects the mowing unit 8 and the threshing device 3, and the mowing unit 8 includes a take-up reel 15 for adjusting the position for scraping grain culms in a field, and a first cutting unit for tip cutting. In a combine provided with one cutting blade 20 and a second cutting blade 25 for operating a second cutting blade driving hydraulic motor 31 for root cutting, the second cutting blade driving hydraulic motor 31 drives the transport elevator 13 Installed in the cutting section 8 on the opposite side of the control section 7. In addition, a hydraulic pressure having a hydraulic valve and the like connected to the position adjusting cylinder and the second cutting blade driving hydraulic motor 31 and controlling the cutting section 8 near the second cutting blade driving hydraulic motor 31. Since it is a combine harvester provided with the controller 33, the cylinders for adjusting the position of the take-up reel 15 such as the front-rear position adjusting cylinder 17 and the height adjusting cylinder 18 and the second cutting blade 25 are operated. Hydraulic control unit 3 provided with a hydraulic valve for operating the hydraulic pressure of the second cutting blade driving hydraulic motor 31 and the like.
3 can be provided in the mowing part 8 on the opposite side of the control part 7, and not only can maintenance work including attachment and detachment of the mowing part 8 be performed easily, but also the piping can be simplified and the cause of failure can be caused. It is possible to eliminate the cost and reduce the cost.

[Brief description of drawings]

FIG. 1 is an overall side view.

FIG. 2 is a schematic plan view.

FIG. 3 is a side view of the mowing unit.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view showing an operating state.

FIG. 6 is a sectional view of a transfer elevator.

FIG. 7 is a side view of the mounting state.

FIG. 8 is a diagram showing an example of slats.

FIG. 9 is a side view of the mowing unit.

FIG. 10 is a block diagram.

FIG. 11 is a hydraulic circuit diagram.

FIG. 12 is a plan view of the cutting unit.

FIG. 13 is a conventional view of reaping work.

FIG. 14 is an embodiment diagram of the present invention.

FIG. 15 is a block diagram.

FIG. 16 is a plan view.

FIG. 17 is a rear view.

FIG. 18 is a rear view.

FIG. 19 is a block diagram.

FIG. 20 is a side view.

FIG. 21 is a hydraulic circuit diagram.

[Explanation of symbols]

1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ...
One side, 5 ... Glen tank, 6 ... Other side, 7 ... Control section, 8 ...
Mowing part, 9 ... Side wall, 10 ... Rear wall, 11 ... Bottom wall, 12 ... Mowing part frame, 13 ... Conveyor elevator, 14 ... Weeding body, 15 ... Take-up reel, 16 ... Mounting arm, 17 ... Front-rear position adjusting cylinder , 18 ... Cylinder for height adjustment, 20 ...
First cutting blade, 21 ... Auger, 22 ... Upper rotary shaft, 23 ...
Mowing unit vertical movement cylinder, 25 ... Second cutting blade, 26 ... Second cutting blade mounting frame, 27 ... Support rod, 28 ... Arm, 29 ...
Vertical link, 30 ... Second cutting blade vertical cylinder, 31 ...
Hydraulic motor for driving the second cutting blade, 33 ... Hydraulic control unit, 34
... hydraulic pipe, 35 ... connection hose, 36 ... one-touch coupler, 38 ... bottom plate, 39 ... control motor, 40 ... height detection sensor, 41 ... ACH sensor, 42 ... wobble drive, 43 ... electromagnetic solenoid valve, 44 ... for driving Motor, 45 ... Ejecting auger, 46 ... Mounting member, 47
... Slide cylinder, 48 ... Slide controller, 49 ...
One, 50 ... The other, 51 ... Switch, 52 ... Contact body, 5
3 ... Frame body, 54 ... Pin, 55 ... Chain, 56 ... Slat, 60 ... CPU, 61 ... Cereal culm presence detection sensor, 62
… Solenoid valve, 63… Reverse detection sensor, 64…
HST lever, 65 ... Mission, 66 ... Hydraulic continuously variable transmission.

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[Procedure amendment]

[Submission date] June 2, 1994

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[0002]

2. Description of the Related Art In the publicly known Japanese Utility Model Publication No. 63-4621, a traveling device provided at a lower position of a machine frame, a threshing device provided at an upper position of one of the machine frames, and the machine frame. Any one of the above, the Glen tank provided at the upper position on the other side, the control section provided at the front side of the Glen tank, the mowing section provided at the front position of the control section, and the side section of the control section It consists of a transport elevator that connects the mowing unit and the threshing device, the mowing unit, a scraping reel for scraping the grain culms of the field, a first cutting blade for cutting the tips,
A combine is provided with a retractable second cutting blade for root cutting.

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Claims (1)

[Claims] 1. A traveling device 2 provided at a lower position of a machine body frame 1, a threshing device 3 provided at an upper position of one side 4 of the machine body frame 1, and an upper portion 6 of the other side of the machine body frame 1. A Glen tank 5 provided at a position, a control section 7 provided at the front side of the Glen tank 5, a mowing section 8 provided at a front position of the control section 7, and a side section of the control section 7. The harvesting unit 8 includes a transport elevator 13 that connects the threshing device 3 to the threshing device 3. The harvesting unit 8 includes a take-up reel 15 that is positionally adjustable to scrape grain culms in a field, and a first cutting for cutting tips. In the combine provided with the blade 20 and the second cutting blade 25 that is operated by the second cutting blade driving hydraulic motor 31 for root cutting, the second cutting blade driving hydraulic motor 31 sandwiches the transport elevator 13. If it is provided on the mowing section 8 on the opposite side of the control section 7, A hydraulic control having a cutting valve 8 near the second cutting blade driving hydraulic motor 31 and a hydraulic valve for connecting the position adjusting cylinder and the second cutting blade driving hydraulic motor 31 to control them. A combine harvester having a portion 33.