JPS619204A - Harvester - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention is based on the method of threshing crops such as grains, which are harvested and tied together.
This relates to a harvesting machine.

Harvesting work using a harvesting machine that harvests and bundles crops such as rice, wheat, and other grains, beans, and grasses involves threshing and threshing. This is guided to the cutting position by the cutting blade and harvested, and if the machine meandered and did not clear the crop rows correctly, uncut residue would be created and the crops would fall over, resulting in loss.) do. Furthermore, when the cutting blade operates at the edge of a field where there are no crops or on the edge of a bank, it is difficult for the cutting blade to scrape mud, weeds, etc.

Therefore, many persimmon harvesters are equipped with a direction sensor and a reaping sensor at the front end of the machine base to detect the meandering of the machine base and the presence or absence of crops. It is rotatably pivoted near the weeding body and is mechanically or electrically connected to the left and right side clutches.When the direction of movement of the machine is shifted to the left, for example, the direction sensor is activated. The machine rotates by detecting the crop row on the left side, and by disengaging the opposite side clutch on the right side, the machine rotates slightly to the right and corrects the direction of movement of the machine. In addition, the reaping sensor is rotatably mounted near the weeding body and mechanically or electrically connected to the reaping clutch. The system detects this and connects the reaping clutch, and disconnects the reaping clutch when no crops are present.

However, in conventional harvesters, the direction sensor and the reaping sensor are installed separately in the front and back, so the detection of the sensor on the rear side is delayed, resulting in the correct steering of the machine and the start of reaping. The drawback was that it was not carried out.

The present invention has been made in view of the above points, and by rotatably supporting the direction sensor and the reaping sensor on the same axis, both sensors simultaneously detect the crop. The purpose of the present invention is to provide a harvesting machine that normalizes the steering of the harvester and the start of harvesting. Embodiments of the present invention will be described in detail below with reference to the drawings.

This example shows an example in which the present invention is applied to a binder.
The figure is a side view of a binder to which this is applied, Figure 2 is a plan view of the vicinity of the direction sensor and reaping sensor, Figure 3 is a side view of the same, Figure 4 is a side view of the vicinity of the reaping clutch box, and Figure 5 is a side view of the vicinity of the reaping clutch box. is also a sectional view. In the figure, a binder 1 is composed of a drive wheel 2 and a reaping machine 3 that is detachably attached to the drive wheel 2. Of these, the drive vehicle 2 is equipped with wheels 6 on a traveling drive shaft 5 that is pivotally supported by a frame and a transmission case 4, and a handle T that is U-shaped in plan view extends diagonally backward from the frame. It has been extended towards. 8 is an engine fixed on a base 9 that projects rearward from the frame, and a fuel tank 10 is attached to this.The output shaft of the engine 8 is connected to a belt stretched within a belt case 11. The input shaft 12 of the transmission device in the transmission case 5 by
A driving connection is made between the two. Further, the input shaft 12 and the running drive shaft 5 are drivingly connected by a transmission device within the transmission case 4. 13 is a running latch lever that connects and disconnects a running latch in the clutch box 14, and 15 is a reaping clutch lever that manually connects and disconnects a reaping clutch to be described later. Further, an upper bracket 17 having a pin 16 at its tip and a lower bracket 18 having a notch 18m at its tip are fixed to the clutch box 14 and the transmission case 4, respectively.

On the other hand, the reaping machine 3 is entirely supported by a reaping frame 19, and the upper hooked part of the reaping frame 19 is connected to a pin 16.
The hook is configured to be detachable from the drive wheel 2 by engaging the pin/20 at the lower end with the notch 18&. 021 is a string holder for storing the binding string 22 It is fixed to the upper end of the reaping frame 19. A transmission box 23 in which a transmission device is housed projects horizontally from the lower end of the reaping frame 19, and its input shaft and output shaft 24 of the transmission case 4 are connected to each other.
A removable rotation transmission device drives and connects the two. In other words, the input shaft 1 inside the conduction case 4
The output shaft 24 is drivingly connected to the transmission case 4, and its protruding end is pivotally supported by an output gearbox 25 fixed to the transmission case 4. PT shown in FIG. 5 via the transmission mechanism.
Six motions are connected on two O-axes. The PTO shaft has a 66-square head on two shafts and projects diagonally forward from the output gear box 25, and is connected and disconnected by a clutch mechanism in the output gear box by operating the reaping clutch lever 15. It is configured to rotate and stop.

On the other hand, from the transmission box 23 on the reaper 3 side, a reaping clutch box 28 in which a reaping clutch mechanism 27 is housed, and a bearing box 30 in which a rotation transmission mechanism (not shown) having a ball bearing 29 is housed diagonally backward. An input shaft 31 of the reaping clutch mechanism 27 having a hexagonal head projects from the rear end of the reaping clutch box 28 . 32 is a connecting pipe, and the pipe 32 has a hexagonal hole.
m, 32b and a shaft 32e that integrally connects them.In the state shown in FIG. 5, both shafts 26 and 31 are drivingly connected, and from this state it is moved to the right in the figure. Otherwise, the connection between the two shafts 26, 31 is broken. 33 is the output shaft of the reaping clutch machine $27, which is supported by a pole bearing 29), and a bearing box 3o.
It is drivingly connected to the transmission device in the transmission box 23 via the rotation transmission mechanism inside. With this configuration, when the reaping clutch mechanism 2T is connected, six rotations on the two PTO shafts are transmitted to the transmission device in the transmission box 23. However, regarding the structure of the reaping clutch mechanism 2T and its connection/disconnection mechanism. This will be explained later.

A reaping machine 3 having such a drive unit has a reaping frame 1
At the lower end of 9, there is a pre-reaping frame 34 that is perpendicular to this so as to form an inverted T shape.From now on, three dividing rods 35 extend forward along the ground. At the front ends of the weeding rods 35 are fixed weeding bodies 36, which plow through the culms of the field as the machine moves forward. Reference numeral 37 denotes a lifting device that is erected one by one between adjacent branching rods 35 to lift up and convey the tips of the fallen culms and erect the culms, and is a lifting device that extends upward from the transmission box 23. The upper end of the conduction box 2 is supported by the pipe 38, and the conduction box 2 is
It is driven from the 3rd side. Further, 39 is a cutting blade formed in the shape of a clipper and supported perpendicularly to the weeding rod 35,
The lifting device 3 is driven from the conduction box 23 side.
The structure is such that the root part of the erected culm is harvested at step 7.

Further, 40 indicates a rotary raking body 4 after cutting by the cutting blade 39.
This is a horizontal conveying device that transports the culm scraped in step 2 to a binding device (not shown) on the back side of the paper in FIG. are both driven by oral transmission from the conduction box 23 side. Note that the shaft of the rotary raking body 42 is pivotally supported at the center by a bracket 45 that projects rearward from a support plate 44 fixed to the weeding rod 35.

Next, a device that automatically connects and disconnects the reaping clutch mechanism 27 depending on the presence or absence of a culm, and a device that automatically corrects the meandering of the machine base and causes the machine base to move straight will be explained. An L-shaped bracket 46 horizontally protrudes forward from the support plate 44 that connects the dividing rod 35 and the pulling device 37 on the uncut culm side, which is the left side in the direction of machine movement. The roller with the outer ring fixed inside the case at the tip is the υ bearing 47.
A sensor shaft 48 is rotatably supported.

An arm 49 and a diamond-shaped direction sensor 50 are fixed to the upper and lower ends of the sensor shaft 48 by welding or the like. When the direction sensor 50 rotates, the arm 49 rotates together with the sensor shaft 48. is configured to do so. Further, between the roller p bearing 47 and the direction sensor 50, another rolling bearing 51 has an inner ring fitted and fixed to the sensor shaft 48, and a case in which the rotatable outer ring is fitted and fixed to the sensor shaft 48. In this case, the reaping center 52 and the pin 53 are fixed by welding or the like, and when the reaping sensor 52 rotates, the shear pin 5
3 are configured to integrally revolve around a sensor shaft 48. That is, the direction sensor 50 and the reaping sensor 52 are rotatably supported around the same axis. The reaping sensor 52 detects the culm 5 planted in the field.
4A, 54B.

54C... Extending in the parallel direction of the shell culm 5
4B, it is configured to rotate clockwise in FIG. 2. A reaping clutch rod 55, whose one end is pivotally connected to a pin 53 integral with the reaping sensor 52-, extends in the direction of the reaping clutch box 28, and controls the play of a lever 57 fixed to a thick shaft 56 at its lower end. The other end is inserted into the end. 5B is lever 57 and washer 59
This is a buffer spring interposed between the reaping clutch rod 55 and the reaping clutch rod 55. As shown in FIG. 5, a clutch disc 6 is fixed to the output shaft 33 of the reaping clutch mechanism 27.
0 is pivotally supported by the reaping clutch box 28, and the input shaft 31 is pivotally supported by the inner peripheral portion of the clutch disc 60. Reference numeral 61 denotes a clutch pulley that is slidably but non-rotatably fitted to the splined portion of the input shaft 31, and a clutch surface 61a that engages with a clutch surface 60a provided on the end surface of the clutch disc 60 is provided on the end surface of the clutch pulley. A roller 63 at the free end of the shifter 62 fixed to the thick shaft 56 is engaged in the groove of the clutch pulley 61. When the machine moves forward and the reaping sensor 52 contacts the culms 54A and 54B and rotates clockwise in FIG. 2, the reaping clutch rod 55 is pulled and the shifter 62 rotates. The shift latch surfaces 60a and 61a mesh with each other, and the rotation of the input shaft 31 is transmitted to the output shaft 33, so that each device of the reaper 3 rotates.

On the other hand, the direction sensor 50 is connected to the culm 54 while the machine is moving straight.
However, if the machine meanders and shifts to the right or left, the machine passes between the culm 54B and the culm 54C.
2, respectively, so as to rotate clockwise or counterclockwise in FIG. 2. One end of a wire 65 passing through the vibro 4, one end of which is supported by the bracket 46, is fixed to the arm 49, which is integrated with the direction sensor 50. It is connected to the side clutch in the transmission case 4 through the transmission case 4. The traveling drive shaft 5 is divided into left and right wheels 6, and a side clutch is attached to each traveling drive shaft 5 through gear engagement, and the direction sensor 50 moves clockwise in FIG. By rotating and pushing the wire 65, the left side clutch is disengaged in the direction of travel, and the left wheel 6 is decelerated or stopped. In addition, the direction sensor 50
By rotating counterclockwise in FIG. 2 and pulling the wire 65, the right side clutch is disengaged and the right wheel 6 is decelerated or stopped.

The reaping operation using the binder configured as above will be explained. The worker started engine 8,
Then, the user operates the running latch lever 13 to make the machine run, and while holding the handle 7, the user follows the machine while walking. As the machine advances, the shell culm 54A of the field is seen.

54Bp Grass rod 3 that is separated by the grass rod 36 and adjacent to it
At this time, as shown in FIG.
As the machine moves forward while contacting the reaping clutch rod 55, the reaping sensor 52 rotates clockwise in the figure.
pull. Therefore, the lever 51 and shifter 62 rotate via the buffer spring 58, and the clutch surfaces 5Qa and 61a engage with each other, so that the rotation of the PTO shaft 26 on the drive vehicle 2 side is reduced to the reaper 3.
It is transmitted to the output shaft 33 on the side, and each device of the reaper 3 rotates.

As each device of the reaper 3 is activated in this way and the machine base moves forward, the culms 54A and 54B are raised by lifting and conveying by the device 3T, and the culms 54A and 54B stand up, and then the root part The cut culm 54A is cut with the cutting blade 39.
, 54B are released from the device 37 by lifting up their tip portions, are scraped in the machine width direction by the rotating scraper 42, are transported to the binding passage by the horizontal conveyance device 40, are bundled, and are discharged to the field. be done
(iThen, while the aircraft was moving straight,
If the direction of travel is shifted to the left, for example, the culm 54B
, 54C, the direction sensor 50 moves to the left, contacts the culm 54CK, and rotates counterclockwise in FIG. 2, so the wire 65 is pulled and the right side clutch is disconnected. , the right wheel 6 decelerates or stops together with the traveling drive shaft 5. Therefore, the machine base turns to the right and the shift to the left is corrected, and after correction, the direction sensor 50
is separated from the shell culm 54C and returned to the illustrated attitude by a spring member (not shown), so the side clutch is connected again and the machine moves straight. Then, the reaping sensor 52 and the direction sensor 5
0 on the same axis, both sensors 52, 5
0 operates at the same timing.

When storing the machine after the reaping work, remove the wire 55 for the direction sensor 50, then push up the connecting pipe 32 to disengage the upper and lower pins 16, 20 and the notch. Therefore, the driving vehicle 2 and the reaping machine 3 can be easily separated. In addition, the PTO shaft 26 and the connecting pipe 32 are used to connect working machines and transport equipment other than the reaper 3 to the driving vehicle 2.
In this case, output gearbox 2
Since the clutch mechanism is housed within 5, transmission of rotation to the work machine etc. can be connected and disconnected without any problem.

FIG. 6 shows another embodiment of the present invention, in which FIG. 6(a) is a plan view of a reaping sensor and a direction sensor, and FIG. 6(b) is a side view of the same. In this embodiment, the reaping sensor 52A and the direction sensor 50A are rotatably provided around the same axis, which is the same as in the previous embodiment. are provided so as to rotate within the same horizontal plane not only around the rotation center but also in the height direction. By doing this, both sensors 50A, 52
If A is placed in a lower position, Ryo7in? Both 5OA and 52A detect the base of the firm culm, so detection is reliable.

FIG. 7 further shows another embodiment of the present invention, and FIG.
) is a plan view of the reaping sensor and direction sensor, FIG. 7(b)
is also a side view. In this embodiment, as in the embodiment shown in FIG. 6, both sensors 50B and 52B are provided to rotate about the same axis and within the same plane. By doing this, if both sensors 50B and 52B are provided at a low position, both sensors 50B and 52B will detect the base of the firm culm, thereby ensuring reliable sensing.

In addition, although each of the above-mentioned embodiments has shown an example in which the present invention is applied to a binder for rice and essential use, it can be similarly applied to a combine reaper, a reaper for legumes, and the like. Further, the reaping clutch device s27 may be provided on the traveling section side, and furthermore, both the sensors 50 and 52 may be electrically connected to the reaping clutch mechanism 27 and the side clutch, respectively. In this case, a hydraulic system may or may not be provided.

As is clear from the above description, in the harvester according to the present invention, the direction sensors 50, 5OA, 50B and the reaping sensors 52, 52A, 52B are rotatably supported on the same axis. In particular, both sensors detect the crop at the same time, and the steering control of the machine and the start of the reaping operation are carried out at the same time, so normal reaping operations can be carried out without leaving any uncut material or crop lodging. 1 I can.

[Brief explanation of drawings]

Figures 1 to 7 show embodiments of the harvesting machine according to the present invention.
The figure is a plan view of the vicinity of the direction sensor and the reaping sensor, FIG. 3 is a side view, FIG. 4 is a side view of the vicinity of the reaping clutch box, FIG. 5 is a sectional view, and FIG. 6(a) is a plan view of a reaping sensor and a direction sensor, FIG. 6(b) is a side view of the same, and FIG. 7 is a further example of another embodiment of the present invention. 7(&) is a plan view of the reaping sensor and the direction sensor, and FIG. 7(b) is a side view of the same. 1...ψ binder, 3...reaper, 27...
Reaping clutch mechanism, 48...1111 sensor shaft, 50.
5OA, 50B... Direction sensor, 52° 52A,
52B...Φ・Reaping sensor, 54A, 54B, 54C
・・・e shell culm〇

Claims (1)

[Claims] A harvester characterized in that a direction sensor connected to a machine steering control device and a reaping sensor connected to a reaping clutch are rotatably supported on the same axis.