JPH05316869A - Combine - Google Patents

Abstract

PURPOSE:To prevent further sinking of traveling device on one side due to increase in inclined load and keep straight traveling property by controlling outside extension of an incremental part provided in a grain storage device. CONSTITUTION:The objective combine is equipped with an incremental part 3 of grain storage device 2 carried on lateral sides of car base 1 and constructed so as to be able to automatically extend according to grain storage amount, lateral rolling devices 8 and 8 capable of horizontally keeping the car base 1 by lifting and lowering lateral traveling devices 7 and 7 independently to the car base 1 and a control means 10 for controlling extension operation of the incremental part 3 when detected result of rolling amount detecting means 9 for detecting the difference of operating amounts of the lateral rolling derives 8 and 8 exceeds a prescribed value.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a grain storage device for combine harvesters has been mounted on one side of the chassis and on the outside in order to increase the storage capacity during work under the limitation of the width of the vehicle under the Road Traffic Law. An increasing part that can be expanded and contracted is provided. Then, there is a structure in which the increasing portion is expanded / contracted by a driving device such as an electric motor or a hydraulic cylinder. When a grain sensor is provided at a plurality of height positions in the grain storage device to configure a grain storage amount detection means, and the grain storage amount detection means detects a grain storage amount of a predetermined amount or more. In some cases, there is provided a connecting means for operating the drive device to automatically expand the increasing portion.

[0003] There is also a rolling device in which the left and right traveling devices are independently moved up and down with respect to the combine chassis to adjust the lateral inclination of the chassis. this is,
If one of the left and right traveling devices sinks more than the other in wetlands, etc., activate the left and right rolling devices to push down the traveling device on the side (low side) of the subsidence with respect to the chassis. And the side with a small subsidence (high side)
By raising the traveling device of the same amount by the same amount (that is, operating the left and right rolling devices by the same amount in the opposite direction), the chassis is maintained in the horizontal posture. by this,
The work efficiency of the threshing / sorting device mounted on the chassis can be properly maintained. It should be noted that a device that automatically operates the rolling device based on the detection result of the tilt sensor that detects the tilt of the chassis has already been commercialized.

[0004]

As described above, the grain storage device of the combine is mounted on the left and right sides of the chassis. Therefore, as the grains are filled in the grain storage device, the load on the traveling device on the grain storage device mounting side is significantly increased. Further, in the above-mentioned one in which the increasing portion of the grain storage device is automatically expanded outward, the expanding operation of the increasing portion is performed by the grain storage amount detecting means detecting a grain storage amount of a predetermined amount or more. Sometimes it is inevitable. Therefore, the weight balance of the chassis is further biased toward the grain storage device side, and the load on the traveling device on this side is further increased.

As a result, the traveling device on the grain storage device mounting side will sink more than the other traveling device. Even if this state is within the range where the chassis can be maintained horizontally by the operation of the rolling device,
The traveling device impaired the straightness and the work efficiency was extremely reduced. Further, if the subsidence of the traveling device is extremely large, the aircraft will be in a state in which it cannot travel, which is a serious situation. Further, when the rolling device is operated to the operating limit and the chassis cannot be maintained horizontally, not only the obstacles in traveling as described above, but also the reduction of the sorting efficiency of the threshing sorting device mounted on the chassis, etc. It also had an adverse effect on the function of the work equipment.

[0006]

In order to solve the above-mentioned problems, the present invention takes the following technical means.
That is, the grain storage device 2 mounted on one left and right side of the chassis 1, the increasing portion 3 that can be expanded outward from the grain storage device 2, and the drive device 4 that expands and operates the increasing portion 3. Based on the grain storage amount detecting means 5 for detecting the grain storage amount in the grain storage device 2 and the detection result of the grain storage amount detecting means 5, the drive device 4 is driven to increase the increasing portion. And a rolling means 8 for adjusting the lateral inclination of the chassis 1 by independently raising and lowering the left and right traveling devices 7, 7 with respect to the chassis 1. , 8 and rolling amount detecting means 9 for detecting the difference between the operating amounts of the left and right rolling devices 8, 8 are provided, and the detected value of the rolling amount detecting means 9 is a predetermined value. Checking means 1 for restricting the operation of the drive device 4 when it exceeds
This is a combine configuration characterized in that 0 is provided.

[0007]

[Advantageous Effects of the Invention] Grain stalks are harvested while the combine traveling devices 7 and 7 are driven to travel, and the harvested grain culms are threshed by the threshing device mounted on the chassis 1 and harvested. The grain is loaded and stored in the grain storage device 2 mounted on one side of the chassis 1. At the early stage of the work, the grain storage amount in the grain storage device 2 is small, and therefore the increasing unit 3 is not expanded.

Further, when the chassis 1 is inclined due to the subsidence of the left and right traveling devices 7, 7 or the inclination of the farm scene during work traveling, the left and right sides are manually operated or automatically output by inclination detection. The rolling devices 8, 8 are operated in opposite directions to each other or are operated in different amounts in the same direction, so that the chassis 1 is always maintained in a horizontal posture. The difference between the operating amounts of the rolling devices 8 and 8 is detected by the rolling amount detecting means 9.

During operation, the grain storage amount in the grain storage device 2 temporarily increases, and when the grain storage amount detecting means 5 detects that the grain storage amount reaches a predetermined amount, the connecting means is connected. 6
The drive device 4 is actuated by this, and the increasing portion 3 is expanded outward. As a result, the capacity of the grain storage device 2 is increased, and work traveling can be continued. Further, when the grain storage amount increases, the weight of the grain storage device 2 increases, and the traveling device 7 on the side on which the grain storage device 2 is mounted is
The weight of the traveling device 7 is larger than that of the other traveling device 7, and the vehicle easily sinks.

In such a work traveling, the grain storage device 2 among the left and right traveling devices 7, 7 is selected depending on the field conditions or the like.
When the traveling device 7 on the mounting side sinks more than the other, the left and right rolling devices 8, 8 described above are largely operated in the horizontal direction of the chassis 1. This rolling amount is detected by the rolling amount detecting means 9, and when this detected value exceeds a predetermined value, the restraining means 10 regulates the operation of the drive device 4, and the increasing portion 3 Prevent it from expanding.

As a result, it is possible to limit the deviation of the weight of the undercarriage 1 toward the side on which the grain storage device 2 is mounted. As a result, the subsidence of the traveling device 7 on this side is suppressed to a small level, and the traveling performance such as the straightness of the machine body is improved. Can be maintained. Contrary to the above, the traveling device 7 on the side opposite to the side on which the grain storage device 2 is mounted among the traveling devices 7, 7 on the left and right depending on field conditions or the like.
The rolling operation described above is carried out even when the submersion amount is larger than the other, but at this time, the operation of the drive unit 4 is not restricted by the restraining means 10, and the increasing portion 3 is in an expandable state. ..

Further, even when the chassis 1 is not inclined due to field conditions or the like, and therefore the rolling devices 8 and 8 are not operated, the operation of the drive device 4 is not restricted by the restraint means 10 and the amount of increase is increased. The part 3 is expandable by the connecting means 6. As described above, the work efficiency can be appropriately maintained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described by taking a combine as an example. The vehicle body 11 of the combine is provided with the chassis 1 above the left and right running devices 7, 7 of the endless track type, the grain storage device 2 is provided on one side of the upper left and right sides of the chassis 1, and the threshing device 12 is provided on the other side. It is mounted and configured by providing a control unit 10 and the like in front of the grain storage device 2. Further, a cutting device 13 is provided in front of the threshing device 12 so as to be able to move up and down.

However, the left and right traveling devices 7, 7 are provided so as to be able to move up and down independently of the chassis 1 by the left and right rolling devices 8. The rolling device 8 is
A pitching frame 14 having a frame structure, a rolling wheel frame 16 having a group of rolling wheels 15 axially attached thereto, a pair of front and rear rolling arms 17, 17, a rolling cylinder 18, and a connecting rod 19. It consists of. The pitching frame 14
Has a front end thereof pivotally attached to the chassis 1 side so as to be vertically rotatable, and a rear end thereof is connected to the chassis 1 side with a pitching link 20. The central bent portions of the rolling arms 17 and 17 are axially attached to the front and rear two positions of the pitching frame 14, respectively, and the lower end portions of the rolling arms 17 and 17 are attached to the lower rolling wheels. The frame 16 is attached to the front and rear at two places. Also,
The upper ends of the rolling arms 17 are connected by the connecting rod 19. Further, the tip of the piston of the rolling cylinder 18 is connected to the upper part of the rolling arm 17 on the rear side, and the rolling cylinder 1
The cylinder side of 8 is pivotally attached to the upper part of the pitching frame 14. The rolling cylinder 18 is also provided with a stroke sensor 21 for detecting the amount of expansion and contraction. The left and right stroke sensors 21 and 21 are rolling amount detecting means 9.

With the above construction, when the rolling cylinder 18 is extended, the rolling arm 17 on the rear side and the rolling arm 17 on the front side connected to it by the connecting rod 19 rotate. As a result, the pitching frame 14 and the rolling wheel frame 16 are expanded / contracted while keeping the relative angle constant (here, always parallel). Further, the above configuration is common to both the left and right rolling devices 8 and 8.

The rolling cylinders 18 and 1 are
The expansion and contraction of 8 is performed by the output from the horizontal control controller 23 to the rolling valves 37, 37 based on the chassis inclination detection result of the inclination sensor 22 installed on the chassis 1, and the stroke sensor 21 is used. Feedback control is performed. In addition, the grain storage device 2 has an increasing portion 3
To provide. The increasing portion 3 is composed of a plate body having a quadrangular shape in a side view, an inverted triangular shape in a front view, and a U-shaped cross section, and a lower end portion thereof is attached to a shaft 24 of a lower side edge portion of a side surface opening portion of the grain storage device 2, and It can be opened and closed and expanded and contracted outward. The increasing portion 3 is substantially flush with the side surface of the grain storage device 2 in the closed state, and constitutes a space communicating with the grain storage device 2 in the open state to increase the storage capacity. Then, one ends of rack rods 25, 25 are pivotally attached to the front and rear outer sides of the upper end of the increasing portion 3, and pinion gears meshing with the rack rods 25, 25 are provided on the upper and lower side walls of the grain storage device 2. An electric motor for driving 26, 26 by an interlocking shaft 36.
Attach the tab 27. This is the drive device 4 for expanding and contracting the increasing portion 3. By driving the electric motor 27, the rack rods 25, 25 move, and by this,
The increasing portion 3 opens and closes and expands and contracts around the shaft 24.

A grain sensor 28 is attached to a lower position of the inner wall surface of the grain storage device 2. This is the grain storage amount detecting means 5. The combine work is performed, and the grain storage device 2 is filled with the grains, and the accumulation height is the above-mentioned grain sansa 2
When reaching the 8th position, the grain sensor 28 (grain storage amount detecting means 5) detects this. Then, based on the detection result from the grain sensor 28, the increasing controller 29
From this, an operation command in the increasing direction is issued to the electric motor 27, whereby the increasing portion 3 is expanded outward.
This is the connecting means 6.

However, when the traveling device 7 on the grain storage device 2 mounting side sinks more than the other during work traveling, when the inclination sensor 22 detects the inclination of the chassis 1, the horizontal control controller 23 detects the inclination. By the output of, the rolling cylinder 18 on the largely depressed side is extended and the other rolling cylinder 18 is contracted. This output is
The tilt sensor 22 continues until it detects that the chassis 1 is horizontal, and then stops. And in this state,
The amount of ring is detected by the rolling amount detecting means 9, and the detection result is input to the increasing controller 29. When the detection result exceeds the predetermined value, the operation command in the increasing direction from the increasing controller 29 is set not to be output. This is the restraint means 1
It is 0.

On the contrary to the above, when the traveling device 7 on the threshing device 12 mounting side sinks more than the other, the chassis 1 is leveled, but at this time, the check means 10 is used.
Does not operate, and the operation output in the increasing direction from the increasing controller 29 is possible. That is, the increasing unit 3 can be expanded by the output from the increasing controller 29 based on the detection result of the grain storage amount detecting means 5.

Further, when neither the left or right traveling device 7, 7 sinks, or the sinking amount is the same amount, the rolling device 8 does not operate, and therefore, the rolling amount detecting means 9 Does not detect the rolling amount. Again,
The restraint means 10 does not operate, and the increasing portion 3 is expandable. In addition, during the work with the increasing portion 3 expanded,
When the rolling amount detecting means 9 detects a rolling amount equal to or more than a predetermined value, the increasing controller 29 outputs an output in the decreasing direction, the electric motor 27 reversely rotates, and The increasing portion 3 may be linked so as to be reduced, that is, to be operated in a direction to be stored in the grain storage device 2 side.

Further, a threshing switch 30 and a mowing switch 31 for detecting whether or not the threshing device 12 and the mowing device 13 are in a drivable clutch connection state are provided, and the traveling devices 7 and 7 are driven. The mission 32 is provided with a traveling speed sensor 33 that detects the traveling speed of the airframe. Then, both the threshing switch 30 and the mowing switch 31 detect the clutch connection state, the grain sensor 28 detects a grain storage amount of a predetermined amount or more, and the traveling speed sensor 33 indicates that there is a vehicle speed pulse. When detected, the output from the increasing controller 29 may cause the increasing portion 3 to perform an expansion operation. In this configuration, both the threshing switch 30 and the mowing switch 31 detect a clutch disengaged state, the grain sensor 28 detects a grain storage amount of a predetermined amount or less, and the traveling speed sensor 33 has a vehicle speed pulse. When it is detected, the increase controller 3 is reduced by the output from the increase controller 29, that is, it is operated in the direction to store the increase portion 3 on the grain storage device 2 side.

Further, the grain hoisting route of the first grain hoisting device 34 for feeding grains to the grain storing device 2 or the grain storing device 2
The grain flow rate sensor 35 may be provided at the grain input port.
When the grain sensor 28 detects a grain storage amount of a predetermined amount or more, and the grain flow rate sensor 35 detects a grain flow amount of a predetermined amount or more, from the increasing controller 29. It is preferable to set so that the output in the reducing direction (the storing direction) of the increasing section 3 is not output. As a result, it is possible to prevent deformation and damage of the increasing portion 3 that occurs when the increasing portion 3 is contracted (stored) while a large amount of grains are stored.

The electric motor 27 is a manual switch 3
It is configured such that it can be operated with priority over automatic operation by eight operations.

[Brief description of drawings]

FIG. 1 is a schematic front view for explaining the operation in one embodiment of the present invention.

FIG. 2 is a front view showing a grain storage device according to an embodiment of the present invention in a cutaway manner.

FIG. 3 is a plan view showing a grain storage device according to an embodiment of the present invention in a cutaway manner.

FIG. 4 is a side view of the combine in the embodiment of the present invention.

FIG. 5 is a plan view of a combine according to an embodiment of the present invention.

FIG. 6 is a partial control block circuit diagram according to an embodiment of the present invention.

FIG. 7 is a control block circuit diagram of essential parts in an embodiment of the present invention.

FIG. 8 is a control block circuit diagram according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 2 Grain storage device 3 Increasing unit 4 Driving device 5 Grain storage amount detecting means 6 Connecting means 7 Traveling device 8 Rolling device 9 Rolling amount detecting means 10 Checking means

Claims (1)

[Claims] 1. A grain storage device (2) mounted on one side of the chassis (1), a weight increasing unit (3) expandable outward from the grain storage unit (2), and a drive device for expanding the weight increasing unit (3). 4 and
Based on the grain storage amount detecting means 5 for detecting the grain storage amount in the grain storage device 2 and the detection result of the grain storage amount detecting means 5, the drive device 4 is driven to increase the increasing portion. 3 is provided with a connecting means 6 for expanding and operating the chassis 1
With respect to the left and right traveling devices 7 and 7, the left and right rolling devices 8 and 8 capable of adjusting the left and right inclination of the chassis 1 independently and the actuation of the left and right rolling devices 8 and 8. And a rolling amount detecting means 9 for detecting a difference in amount,
Further, the combine is provided with a restraint means 10 for regulating the operation of the drive device 4 when the detection value of the rolling amount detection means 9 exceeds a predetermined value.