JP2672223B2 - Combine harvester slide structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stem culm raising device and a mowing device which are connected to the front part of a traveling machine body via a mowing main frame so as to be driven up and down by a hydraulic cylinder around a horizontal axis core. The present invention relates to a combine harvester slide structure in which a vertical transport device is configured to be slidable in a lateral direction relative to a traveling machine body, and a vertical transport device is swingably movable around an axis of a transport terminal end portion.

[0002]

2. Description of the Related Art In the above-mentioned combine harvester slide structure, conventionally, as shown in, for example, Japanese Utility Model Laid-Open No. 2-55529, a pulling device and a harvester are provided on a slide support portion formed at the tip of the harvesting main frame. There has been a structure in which a mowing frame supporting a device or the like is slidably engaged in the lateral direction, and a transverse feed screw mechanism is interposed between them to laterally slide the mowing section.

[0003]

According to the above-mentioned structure, in the so-called round-cutting operation mode, the stem-culm raising device and the cutting device are moved as close to the uncut area as possible with respect to the traveling machine body so that the uncut kernels can be removed. To reduce mud pushing by the crawler traveling device
And, in the middle split work mode, the stem-culm raising device and the mowing device are positioned at the lateral center of the traveling machine so as to reduce adverse effects such as pushing down uncut grain culm by the crawler traveling device on both the left and right sides. In consideration of the above, in order to smoothly transfer the grain culm to the threshing feed chain, the starting end portion is made to swing while the end side of the vertical conveying device is fixed in position. However, in the above-mentioned conventional structure, since the horizontal slide drive mechanism of the cutting unit is located at a lower level on the lower side of the conveying path of the cut culm, straw chips and weeds and the like generated with the cutting operation are generated. There is a high possibility that smooth operation may be hindered by entanglement with the slide drive mechanism or mud entering the slide sliding portion, and there is room for improvement. It is an object of the present invention to eliminate the above-mentioned problems and prevent operation inhibition due to intrusion of foreign matter while maintaining smooth lateral feed operation.

[0004]

According to a characteristic construction of the present invention, in the combine harvester slide structure described at the beginning, the elevation swing boss portion of the harvester main frame is slid laterally with respect to the machine body frame. A slide support mechanism for freely supporting the hydraulic cylinder is provided, and the base end side of the hydraulic cylinder is pivotally connected to the machine body frame so as to be relatively swingable about a horizontal axis center and fixed in a lateral position. The other end of the hydraulic cylinder is engaged with the cylinder pressing portion of the cutting main frame so as to be slidable and load-receptive relative to each other, and a cylinder support member for preventing lateral movement at the pressing portion of the hydraulic cylinder is provided on the side. It is supported on the machine frame so that it can swing around the axis and can be fixed in position in the horizontal direction, and the cutting main frame is fed horizontally to this cylinder support member. Lies in that is supporting the drive screw shaft in a state of restricting the movement of the relative rotatable and laterally.

[0005]

The slide support mechanism is provided at the swinging pivot of the cutting main frame which is provided at a high position to adjust the cutting height at the cutting section and raise the cutting section greatly when traveling on the road. Straw chips generated during transport of the culm and weeds near the root of the plant are not entangled. Further, the hydraulic cylinder for raising and lowering drive and the reaping main frame relatively slide laterally to each other, enabling the raising and lowering drive regardless of the lateral slide movement, and thus the sliding contact resistance against the pressing action point of the hydraulic cylinder. A lateral movement force is applied due to this, but this lateral movement force is received and supported by a cylinder support member to prevent damage due to twisting of the hydraulic cylinder, and this cylinder support member also causes a lateral feed drive screw shaft. It receives and supports the lateral drive reaction force against.

[0006]

As a result, the lateral slide operation of the cutting unit is less likely to be hindered by the intrusion of straw debris or weeds, the smooth operating state can be maintained for a long time, and the lateral feed drive at a high position is accompanied. The lateral drive reaction force generated by the
By receiving and supporting with one member, the structure can be simplified by sharing the members. Moreover, since the lifting / lowering drive hydraulic cylinder is provided in a fixed position on the machine body frame side, the hydraulic circuit system such as hydraulic piping can be configured in a fixed state, and the durability of the hydraulic system is not deteriorated. is there.

[0007]

Embodiments will be described below with reference to the drawings. FIG.
Shows the front of the two-row mowing combine. This combine connects a cutting pre-processing unit 2 to the front of a traveling machine equipped with the crawler traveling device 1 so as to be able to move up and down and swing around a horizontal axis X, and a threshing device 3 is mounted on the traveling machine. A boarding operation unit 4 is provided on one side of the pre-cutting processing unit 2.

The pre-cutting processing unit 2 includes a pair of right and left raising devices 5 for raising the planted cereal stalks that have fallen to a standing posture, a clipper-type reaper 6 for cutting the root of the raised cereals, A pair of left and right raking packers 7 for raking and transporting the harvested grain culm toward the center toward the rear in the cutting width direction, the harvested grain culm in the upright posture, while holding the root side of the stock and gradually locking the spike side. It is configured to include a vertical transport device 9 and the like that are transported rearward while changing the attitude to the sideways attitude and delivered to the threshing feed chain 8,
It is configured to be supported by a cutting main frame 12 supported on a machine body frame 11 so as to be swingably driven around the horizontal axis X by a hydraulic cylinder 10.

As shown in FIGS. 3 and 4, a transverse transmission shaft 13 having the same axis as the horizontal axis X and having a hexagonal cross section.
The horizontal transmission shaft 13 is attached to the left and right brackets 14.
And is rotatably supported by the body frame 11. The vertical swinging boss 12a of the mowing main frame 12 is externally rotatable relative to the lateral transmission shaft 13 via a bush 15 so as to be relatively rotatable and relatively slidable along the axis of the lateral transmission shaft 13. The slide support mechanism A is configured by fitting. Power is transmitted from the prime mover via an input pulley 16 attached to one shaft end of the lateral transmission shaft 13 so that torque can be transmitted to the transmission shaft 13 and slide integrally with the vertically oscillating boss 12a. The power is transmitted from the bevel gear 17 externally fitted to the pulling device 5, the reaping device 6, and the scraper packer 7 via the front-rear transmission shaft 18 to the other end of the horizontal transmission shaft 13 so as to be relatively rotatable. A power transmission system is configured to transmit power to the vertical conveyance device 9 via a bevel gear mechanism 20 in a fitted bevel gear case 19.

The raising device 5 and the reaping device 6 are configured to be slidable relative to each other in the lateral direction with respect to the machine body, and the vertical transfer device 9 is provided with a shaft center Y on the transfer end side thereof.
It is constructed so that it can swing around. The cutting main frame 12 is provided near the sideways transmission shaft 13 and the body frame 1
A lateral feed mechanism 28 for laterally driving the device 1 is provided. That is, the cylindrical portion 29, which is interposed between the bevel gear case 19 and the lateral transmission shaft 13 so as to be relatively rotatable via the bearing 41 and fixed in the axial direction, and the support integrally extended from the cylindrical portion 29. only set an arm 3 0, while supported in a state that prevents the movement of the screw shaft 31 to the relatively rotatable and laterally by the support arm 30, with the speed reducer mechanism that is mounted and fixed to the support arm 30 to the screw shaft 31 The electric motor 32 is connected. The screw shaft 31 is internally fitted to a pivot boss portion provided on the support arm 30, and is configured to prevent lateral movement. Then, the top member 33 which is engaged with the screw shaft 31 from both upper and lower sides in a sandwiched state is fixed to the cutting main frame 12, and the screw shaft 31 is rotated by the electric motor 32, so that The reaping main frame 12 is configured to slide in the horizontal direction.

Further, as shown in FIGS. 5 and 6, the lifting drive hydraulic cylinder 10 is pivotally supported at its base end in the body frame 11 so as to be swingable about the horizontal axis and fixed in the lateral position. In addition to the connection, a laterally long receiving support member 34 is attached to the other end side, and a laterally long placing support member 35 is attached to the cylinder pressing action portion of the reaping main frame 12 to receive the receiving. The supporting member 34 and the mounting supporting member 35 are engaged with each other in the lateral direction so as to be slidable relative to each other and capable of receiving a load. One end side of the receiving support member 34 is connected to the support arm 30, and the harvesting main frame 1
The hydraulic cylinder 1 that is generated due to the sliding contact resistance between the mounting support member 35 and the receiving support member 34 accompanying the horizontal sliding of 2
The horizontal support force of 0 is received, and the lower side of the mounting support member 35 is bent to receive the support member 34.
To prevent the cutting pretreatment unit 2 from floating upward due to contact with a field scene. The cylinder
By the portion 29, the support arm 30, and the receiving support member 34.
The lateral movement of the hydraulic cylinder 10 at the pressing action point.
A cylinder support member for blocking is constructed. In addition, as shown in FIG. 2, with the lateral sliding of the reaper as described above,
The vertical conveying device 9 is configured to swing around the axis Y of the output shaft 37 of the bevel gear mechanism 20 by the guide rod 36, and as shown in FIG. The bevel gear case 19 is relatively rotated by a motor type depth adjustment mechanism 39, and is vertically swung around the axis of the lateral transmission shaft 13. With the above configuration, by driving the electric motor 32,
The raising device 5 and the mowing device 6 can be laterally moved together with the mowing main frame 12, and can be vertically moved by the hydraulic cylinder 10 regardless of the lateral movement.

In the claims, reference numerals are provided to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is a plan view showing a horizontal sliding state.

FIG. 3 is a plan view showing a transmission system.

FIG. 4 is a cutaway plan view of a slide support mechanism.

FIG. 5 is a cutaway side view of the slide support mechanism.

FIG. 6 is a cutaway plan view of a slide portion of the hydraulic cylinder.

FIG. 7 is a side view of a handling depth adjusting mechanism.

[Explanation of symbols]

 5 Stem culm raising device 6 Mowing device 9 Vertical transfer device 10 Hydraulic cylinder 11 Machine frame 12 Mowing main frame 12a Elevating rocking boss part 31 Screw shaft 42 Cylinder support member A Slide support mechanism X Horizontal axis core

Claims (1)

(57) [Claims] 1. A stem shoot raising device (5) connected to a front part of a traveling body via a cutting main frame (12) so as to be driven up and down by a hydraulic cylinder (10) around a horizontal axis (X). ) And the mowing device (6) are configured to be slidable in the lateral direction relative to the traveling machine body, and the vertical transport device (9) is configured to be swingably movable around the axis of the transport terminal end. A slide structure for a harvesting part of a combine, comprising: an elevation swing boss (12) of the harvesting main frame (12).
A slide support mechanism (A) is provided to support a) so as to be slidable laterally with respect to the machine body frame (11), and the base end of the hydraulic cylinder (10) is laterally supported on the machine body frame (11). The cutting cylinder main frame (1) is pivotally connected to the hydraulic cylinder (10) while being pivotable relative to each other about the axis and fixed in a lateral position.
The hydraulic cylinder (1) is engaged with the cylinder pressing portion of 1) so as to be relatively slidable and capable of receiving a load.
0) and supports the cylinder support member to prevent lateral movement swingably and laterally fixed position freely in the body frame (11) in the transverse axis (Y) around the pressing action portion of,
Reaper sliding structure combine to the main frame (12) cutting the cylinder support member Aru horizontal feed drive screw shaft (31) supported in a state of restricting the movement of the relative rotatable and laterally.