JPS619205A - 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 relates to a harvesting machine that harvests and bundles crops such as cereals and threshes them.

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 base meanderes and does not clear the crop rows correctly, it may result in uncut residue or crop loss due to the crops falling over. do. Furthermore, if the cutting blade operates at the edge of a field or along a bank where there are no crops, the cutting blade will not be able to scrape up mud, weeds, etc.

Therefore, many harvesting machines of this type are equipped with a direction sensor and a reaping sensor at the front end of the machine base to detect meandering of the machine base and the presence or absence of crops. Among these, the direction sensor is rotatably mounted near the weeding body, and is mechanically or electrically connected to the left and right side clutches. When the machine moves to one side, the direction sensor detects the crop row on the left side and rotates, 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. It is. In addition, the reaping sensor is rotatably mounted near the weeding body and is mechanically or electrically connected to the reaping latch. The system detects this and connects the reaping latch, and disconnects the reaping latch when there is no crop present.

However, in conventional harvesters, the coupling mechanism between the direction sensor and the side clutch is provided separately on the left and right sides, which not only has a large number of irons and a complicated structure, but also causes problems such as straw waste, etc. The problem was that if something got stuck and malfunctioned, work had to be interrupted to remove it.

The present invention was made in view of the above points, and the present invention connects the direction sensor and the connecting/disconnecting members of the left and right side clutches by a link mechanism and one connecting member, and rotates the direction sensor in the forward and reverse directions. By configuring the left and right side clutches to be selectively disengaged when the vehicle is moving, the structure of the direction control device is simplified, and the device is prevented from getting caught in straw, etc., thereby eliminating malfunctions. The purpose is to provide a harvesting machine that is measured. 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 flat 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 latch box, and the fifth cape is a side view of the binder to which this is applied. Similarly, cross-sectional view, 1. '・, 'Figure 6 is a plan view of the vicinity of the side clutch release/removal mechanism, and Figure 7 is a side view of the same. It is made up of. Of these, the drive wheel 2 is equipped with wheels 6 on a running drive shaft 5 that is supported by a frame and a transmission case 4, and from the 7th frame, a nodule 7 that is U-shaped in plan view is diagonally rearward. It is extended towards. Reference numeral 8 denotes an engine fixed on a base 9 projecting rearward from the frame, and a fuel tank 10 is attached to this. @$*ft(DA″1) inside conduction case 5
1112 &0iat[Km1Mfi? In
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Ru. Further, the input shaft 12 and the travel drive shaft 5 are drivingly connected by a transmission device within the transmission case 4 . Reference numeral 13 designates a running two-way lever that connects and disconnects a running latch in the clutch box 14, and 15 represents a reaping latch lever that manually connects and disconnects a reaping latch, which will be described later. Further, an upper bracket 17 having a pin 16 at its tip and a lower bracket 18 having a notch 18a 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. A string holder 21 stores a binding string 22 and 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 the connection between its input shaft and the output shaft 24 of the transmission case 4 is detachable. Drive connection is provided by a rotational transmission device. That is, the output shaft 24, which is inserted into the transmission case 4 and is drivingly connected to the input shaft 12, has its protruding end pivotally supported by an output gear box 25 fixed to the transmission case 4.
The two PTO shafts shown in FIG. 5 are six-motion connected via a clutch mechanism housed in the output gear box 25 and a rotation transmission mechanism. The PTO shaft 2 has a 66-square head and projects obliquely forward from the output gearbox 25, and when the reaping latch lever 15 is operated, the clutch mechanism in the output gearbox is connected/disconnected. , configured to rotate and stop. On the other hand, from the transmission box 23 on the reaper 3 side, a reaping latch box 2B in which the reaping latch mechanism 2T is housed, and a bearing box 30 in which a rotation transmission mechanism (not shown) having a ball bearing 29 is housed diagonally backward. Protruding and reaping latch box 2
An input shaft 31 of the reaping latch mechanism 2T having a hexagonal head protrudes from the rear end of B. 32 is a connecting pipe,
It is formed of tubes 32m and 32b having hexagonal holes and a shaft 32e that integrally connects them.Both shafts 26 and 31 are driven and connected in the state shown in FIG. By moving the shaft in the opposite direction, the connection between the shafts 26 and 31 is severed. 33 is the reaping latch mechanism 27
The output shaft is supported by a ball bearing 2QVc, and is drivingly connected to a transmission device in a transmission box 23 via a rotation transmission mechanism in a bearing box 30. With this configuration, when the reaping latch mechanism 27 is connected, the rotation of the PTO shaft 26 is transmitted to the transmission device in the transmission box 23, but the structure of the reaping latch mechanism 27 and its connection/disconnection mechanism will be described later. .

A reaping machine 3 having such a drive unit has a reaping frame 1
At the lower end of 9, a pre-reaping frame 34 is provided which intersects perpendicularly to form an inverted T-shape, and from now on, three dividing rods 35 are extended forward along the ground. At the front ends of the grass rods 35, grass cutting bodies 36 are fixed, respectively, 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 is supported by a pipe 38 and is driven from the transmission box 23 side via a transmission shaft passing through the lifting pipe 38. Further, reference numeral 39 indicates the root portion of the culm which is shaped like a clipper and is mulched with a cutting blade supported perpendicularly to the weeding rod 35, driven from the transmission box 23 side, and erected by the lifting device 31. Furthermore, 40 is configured to cut the rotary raking body 42 after cutting by the cutting blade 39.
This is a horizontal conveyance device that conveys the scraped culm while leaning against the culm guide 43 to a binding device (not shown) located on the back side of the paper in FIG. It is also rotationally driven from the transmission box 23 side. The axis of the rotary raking body 42 is pivotally supported at the center by a bracket 45 whose rear side projects from a support plate 44 fixed to the weeding rod 35.

Next, a device that automatically connects and disconnects the reaping latch machine @27 depending on the presence or absence of a culm, and a device that automatically corrects the meandering of the machine stand and moves the machine straight ahead 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. A sensor shaft 48 is rotatably supported at the upper and lower ends of the bearing 47, which has an outer ring fixed in the case at its tip. The arm 49 and the diamond-shaped direction sensor 50 are each fixed by welding or the like, and the arm 49 is configured to rotate together with the sensor shaft 48 when the direction sensor 50 rotates. Also,
Between the roller bearing 47 and the direction sensor 50, another roller bearing 51 has an inner ring fitted and fixed to the sensor shaft 4B, and a case in which the rotatable outer ring is fitted and fixed. The reaping sensor 52 and the pin 53 are fixed by welding or the like, and when the reaping sensor 52 rotates, the reaping sensor 52 rotates integrally around the sensor shaft 4B. The reaping sensor 52 extends in the parallel direction of the culms 54A, 54B, 54C, etc. planted in the field, and rotates clockwise in FIG. 2 by coming into contact with the culms 54B. is configured to do so. A reaping latch rod 55, one end of which is pivotally connected to a pin 53 integral with the reaping sensor 52, extends in the direction of the reaping latch box 28, and is attached to the free end of a lever 5T fixed to a thick shaft 56 at its lower end. The other end is inserted into the section. 5B is a buffer spring located between the lever 51 and the washer l and interposed on the reaping latch quad 55. As shown in FIG. 5, it is fixed to the output shaft 33 of the reaping latch mechanism 27. The clutch disc 60 is pivotally supported by the reaping latch box 28, and the input shaft 31 is supported by the clutch disc 6.
It is pivotally supported on the inner circumference of 0. Reference numeral 61 denotes a clutch pulley that is slidably but non-rotatably fitted to the sptein-processed portion of the input shaft 31, and has a clutch surface 61a on its end surface that engages with a clutch surface 60a provided on the end surface of the clutch disc 60. Also, the clutch pulley 61
A roller 63 at the free end of the shifter 62 fixed to the thick shaft 56 is engaged in the groove. When the machine moves forward and the reaping sensor 52 contacts the culms 54A and 54B and rotates clockwise in FIG. 80m, 61a are engaged, input shaft 310 rotation is output shaft 3
3 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.
By coming into contact with each of these, it is configured to rotate clockwise or counterclockwise in FIG. 2, respectively. One end of a wire 65 passing through the vibro 4 whose one end is supported by the bracket 46 is fixed to the arm 49 which is integrated with the direction sensor 50. It is extended toward case 4. Inside the conduction case 4, the entire structure is shown in Figure 6.
A side clutch device shown at 6 is provided. That is, the running drive shaft 5 has a running drive shaft (right) 5A and a running drive shaft (a) for each of the left and right wheels 6.
5B, which are supported by bearings 67 of the transmission case 4 and extend close to each other in the center of the transmission case 4. A clutch gear 69 that meshes with a gear 68 that is drivingly connected to the input shaft 12 on the upper part of the transmission case 4 is rotatably supported at opposing ends of both shafts 5A and 5B, with movement in the axial direction being restricted. Clutch surfaces 69a and 69b are formed on both sides thereof, respectively. On both shafts 5A, 5B, clutch surfaces 69m, 6
A clutch pulley 70.71, which has clutch surfaces 70a and 71a on its end faces that engage with clutch 9b, is positioned between the clutch gear 69 and the bearing 6T and is fitted in a slidable but non-rotatable manner via a bezel key or the like. By sliding these clutch pulleys 70 and 71, the two faces 69a
, 69b, 70a, and 71a are engaged to connect and disconnect the clutches so that the traveling drive shafts 5A and 5B stop rotating separately. Therefore, the clutch connection/disconnection mechanism using the direction sensor 50 will be explained. Conduction box 4
Above the connecting lever T2, which is rotatably attached to the side,
A lever 73 with a wire support is integrally formed via a cylindrical boss, while a force direction sensor 50
A wire 65 extending from the pipe γ4 passes through a pipe γ4 whose one end is fixed to the conduction box 4 side, and a rod 75 is fixed to the tip of the wire 65. The rod 75 is inserted into the free end of the wire support lever T3, and a pair of absorption springs 76 and 77 are interposed on both sides of this insertion portion. Reference numeral 7B denotes a lever that is rotatably pivoted near the connecting lever T2 and engages with one end of the connecting lever T2 by a pin T9, and is rotated counterclockwise when the connecting lever 72 rotates clockwise in the figure. It is configured to rotate to.

The other end of the lever 78 and a sickle 80 pivotally connected near the clutch pulley 70 are connected by a rod 81, and a rod 282 pivotally connected to the other end of the shifter 80 engaged with the groove. When the shifter 80 is rotated counterclockwise by the transmission from the coupling lever 72 side), the clutch surfaces 69a and 70a are disengaged and the right clutch is disengaged. Note that the clutch is connected by a clutch spring (not shown).

On the other hand, one end of a shifter 85, which is pivoted near the clutch pulley 11 on the left side, is pivoted to the other end of the rod 84, which is coupled to the other end of the connecting lever 72 by the pin 83 and the long hole 84m. 2, which is pivotally connected to the other end of the shifter 85.
86 is '0' which is engaged with the groove of the clutch pulley 71.
Then, the shifter 85 rotates counterclockwise due to the transmission from the coupling lever 72 side, so that the clutch surfaces 69b, 71
& is disengaged and the left clutch is disengaged. Note that the clutch is connected by a clutch spring (not shown). Further, even if the connecting lever 72 is rotated clockwise to disconnect the right clutch, the rod 84 remains stationary due to the relationship with the elongated hole 84, and the left clutch remains connected by the clutch spring.

In this embodiment, the boss that integrates the connecting lever 72 and the wire support lever 73 is divided into upper and lower parts that engage in a clutch-like manner and are biased in the engagement direction by a compression coil spring 87. . By pushing down the operating lever 8B, the movement transmission between the levers 72 and 73 is cut off.

The reaping operation using the binder configured as above will be explained. After starting the engine 8, the operator operates the running latch lever 13 to make the machine run, and while gripping the handle 7, follows the machine base. As the machine advances, the shell culm 54A of the field is seen.

54B is the adjacent weeding rod 3 that is separated by the weeding rod 36.
At this time, as shown in FIG.
As the machine moves forward while making contact with the BK, the reaping setter 5
2 rotates clockwise in the figure and pulls the reaping latch rod 55. Therefore, the lever 57 and shifter 62 rotate via the buffer spring 58 and the clutch surfaces 60a and 61a engage, so the rotation of the PTO shaft 26 on the driving wheel 2 side is transmitted to the output shaft 33 on the reaper 3 side. , each device of the reaper 3 rotates.

In this way, each device of the reaper 3 is activated and the machine moves forward, so that the culms 54A, 54B pull up the tips of the culms and are lifted up and conveyed by the device 31 to stand up, and then the root portions are harvested. Cutted culm 54A cut with blade 39
, 54B are released from the device 31 by raising their tip portions, are scraped in the machine width direction by the rotating scraper 42, are conveyed to the binding passage by the horizontal conveyance device 40, are bundled and sent to the field. Then, when the machine is traveling straight, if the direction of movement shifts to the right, for example, the direction sensor 50, which was traveling between the shell culms 54B and 540, shifts to the right, as shown in FIG. culm 5
4B, it rotates clockwise in the figure and pushes the wire 65, so the connecting lever 72 rotates counterclockwise while compressing the absorption spring 76, and moves to the left via the rod 84 and shifter 85. clutch is disengaged. Therefore, the left wheel 6 decelerates or stops together with the traveling drive shaft (3) 5B, and the machine base turns to the left, correcting the shift to the right. After the correction, the direction sensor 50 separates from the culm 54B, and the clutch is reconnected by the elastic force of the clutch spring, and the direction sensor 50 returns to the illustrated attitude along the reverse path, and the machine moves straight. .

Ru. Next, the machine is shifted to the left and the direction sensor 50 is located at the culm 5.
4C and rotates counterclockwise, the connecting lever 72 rotates clockwise while pulling the wire 65 and compressing the absorbing spring 77.
8 is rotated counterclockwise, the right clutch is disengaged via the arad 81 and shifter 80. Therefore, the right wheel 6 decelerates or stops together with the travel drive shaft (right) 5A, and the machine base turns to the right, correcting the leftward deviation. After the correction, the direction sensor 50 separates from the shell culm 54C, and the clutch is reconnected by the elastic force of the clutch spring, and the direction sensor 50 returns to the illustrated attitude along the reverse path, and the machine moves straight. In the above movement, when the connecting lever 72 rotates clockwise, the bottle 83 slides inside the elongated hole 84, so the rod 84 does not move, and the connecting lever 72 rotates counterclockwise. Sometimes, the bin 79 is separated from the lever 78 so that the lever 78 does not rotate. That is, either the left or right clutch is selectively disengaged by pushing and pulling the wire 65, and when one clutch is disengaged, the other clutch is not disengaged. When the culm is weak during reaping work, by pushing down the operating lever 88, the direction sensor 50 to the wire support lever 73 and the rear section are separated, so that the direction sensor 50 can be rotated. This can prevent the light shell culm from being pushed down.

In this case, the machine is steered manually. In addition, the absorption spring 76
．． 77, the clutch acts only when a certain force is applied to the direction sensor 50.

When storing the machine stand 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. The transfer vehicle 2 and the reaper 3 can be easily separated. Further, using the PTo shaft 26 and the connecting pipe 42, a working machine other than the reaper 3, a transporter, etc. can be connected to the drive vehicle 2. In this case, a clutch mechanism is housed in the output gear box 25. As a result, rotation transmission to work equipment, etc. can be connected and disconnected without any problem.

Note that the link mechanism that transmits the rotation of the direction sensor 50 in the forward and reverse directions to the left and right clutches to connect and disconnect them is not limited to the link mechanism shown in this embodiment. The direction sensor 50 and the link mechanism may be connected by a rod or the like instead of the wire 65. Further, although this embodiment shows an example in which the present invention is applied to a binder for rice and other essential uses, it can be similarly applied to a combine harvester, a legume harvester, and the like.

As is clear from the above description, in the harvester according to the present invention, the direction sensor 50 and the connecting/disconnecting members of the left and right side clutches are connected by the link mechanism and the connecting member, and the direction sensor 50 is connected in the forward and reverse directions. The structure is configured so that the left and right side clutches are selectively disconnected when the left and right side clutches are rotated, compared to the conventional system in which the left and right direction sensors and the left and right side clutches were connected separately. As a result, the structure of the entire direction control device is simplified. Also, straw shavings!
This improves multi-directional control performance with fewer malfunctions caused by things getting caught, and improves work efficiency by eliminating work interruptions to remove straw debris.

[Brief explanation of the drawing]

Claims (1)

[Claims] In a harvester equipped with a direction control device that rotates the machine in the cutting direction by selectively disengaging either the left or right side clutch, a direction sensor that can freely rotate horizontally is attached to the front end of the machine. The direction sensor and the connecting/disconnecting members of the left and right side clutches are connected so that when the direction sensor rotates in the forward direction, one side clutch is disengaged, and when the direction sensor rotates in the opposite direction, the other side clutch is disengaged. A harvesting machine characterized in that the two are connected by a link mechanism and one connecting member.