JPH04356125A - Balance controller of combine - Google Patents

Abstract

PURPOSE:To improve straight drive performance and running performance by subjecting a grain discharge anger to turning control so as to always an equal load be applied to a lateral running device of combine. CONSTITUTION:In a combine provided with a grain storage device 2 having a grain discharge auger 1 and lateral running devices 3 and 3, a turning means 4 for turning the grain discharge auger 1 is provided in the grain discharge auger 1 and, simultaneously, load detection means 5 and 5 for detecting a load applied to the lateral running devices 3 and 3 is provided in the above-mentioned lateral running devices 3 and 3. An engaging means 6 for operating the above- mentioned turning means 4 based on detection result of the load detection means 5 and 5 is provided in these lateral running devices 3 and 3 to constitute the objective balance controller of combine.

Description

[Detailed description of the invention]

0001

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

0002

2. Description of the Related Art Conventionally, in a combine harvester, a vehicle body is composed of a steering section, a threshing section, a grain storage device, etc., and left and right traveling devices are provided below the vehicle body. The threshing section and the grain storage device are usually arranged side by side in the left-right direction, and the grain storage device is provided with a grain discharge auger that is rotatable.

[0003] Furthermore, there is a vehicle in which the left and right traveling devices are raised and lowered relative to the vehicle body, thereby making it possible to adjust the left and right inclination of the vehicle body, that is, to enable rolling.

0004

SUMMARY OF THE INVENTION In the conventional combine harvester mentioned above, the grain storage device is provided offset to one side of the vehicle body. Then, as the combine operation is performed and harvested grains are introduced into the grain storage device, the weight of the grain storage device increases.

[0005] For this reason, the left-right weight balance of the vehicle body changes greatly during combine harvesting work, and the loads applied to the left and right traveling devices also change greatly. If the load applied to the running gear differs greatly between the left and right sides, it will greatly impede running performance such as straight-line performance, especially in wet fields, resulting in a significant drop in work efficiency.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention takes the following technical means. That is, in a combine harvester equipped with a grain storage device 2 having a grain discharge auger 1 and left and right traveling devices 3, 3,
The grain discharge auger 1 is provided with a turning means 4 for rotating the grain discharge auger 1, and the left and right traveling devices 3
, 3 are provided with load detection means 5, 5 for detecting the load applied to the left and right traveling devices 3, 3, and a linking means 6 for operating the turning means 4 based on the detection results of the load detection means 5, 5. This is a structure of a balance control device for a combine harvester, which is characterized in that it is provided with a.

[0007]

[Operations and Effects of the Invention] In this invention, when the weight balance between the left and right sides of the vehicle body changes due to an increase in the amount of grains in the grain storage device 2, etc., the load applied to the left and right traveling devices 3, 3 changes. Focusing on this, first, the load applied to the left and right traveling devices 3, 3 is detected by the load detecting means 5, 5. Then, based on this detection result, the connecting means 6
The turning means 4 of the auger 1 is operated to turn the grain discharge auger 1. This focuses on the fact that the weight balance between the left and right sides of the vehicle body can be corrected by moving the weight of the grain discharging auger 1 itself from side to side as the grain discharging auger 1 turns. By this rotation of the grain discharging auger 1, the grain discharging auger 1 is rotated to a position where the load detecting means 5, 5 detect a predetermined appropriate balance load.

[0008] As a result, stable running performance can always be maintained even in wet fields, etc., and work efficiency can be improved. Furthermore, if the present invention is applied to a vehicle having a so-called rolling function, in which the left and right traveling devices 3, 3 can be independently raised and lowered relative to the vehicle body to adjust the left and right inclination of the vehicle body, the horizontal posture of the vehicle body can be adjusted. While maintaining this, the shared load between the left and right traveling devices can be equally distributed, resulting in a dramatic improvement in wet field traveling performance.

[0009]

[Embodiment] An embodiment of the present invention will be described below. The vehicle body 7 of the combine is configured by mounting a full culm input type threshing device 9, a grain storage device 2 having a grain discharge auger 1, a control section 10, a drive source 11, etc. above the chassis 8, A reaping device 12 is provided in front of the vehicle body 7 so as to be movable up and down.

Furthermore, left and right endless belt type traveling devices 3, 3 are provided below the vehicle body 7. The left and right traveling devices 3, 3
The left and right rolling wheel frames 15, which support the 14 groups of rolling wheels by the expansion and contraction operations of the left and right rolling cylinders 13, 13,
A rolling means 16 is provided for raising and lowering the rolling means 15 with respect to the vehicle body 7 simultaneously or independently to adjust the left and right inclination of the vehicle body 7. The rolling means 16 is operated by an output from a controller 17 provided on the vehicle body 7, and on the input side of the controller 17 are a horizontal sensor 18 attached to the vehicle body 7 and a manual adjustment switch 19. , an automatic horizontal control start switch 20 is connected, and on the output side of the controller 17, switching valve solenoids 21, 21 for operating the left and right rolling cylinders 13, 13, and an unloading valve solenoid 22 are connected. Connecting.

Furthermore, the left and right rolling cylinders 13
, 13 have a structure in which an impact hydraulic pressure absorption chamber 23 is provided. The rolling cylinders 13, 13 receive the weight of the vehicle body 7, and a pushing force is always applied to the pistons. When riding over unevenness on the running surface, the pushing force of the piston may become shockingly large, which may damage the running device 3 itself or cause the vehicle body 7 to shake violently. However, by providing the impact hydraulic pressure absorption chamber 23 in the rolling cylinders 13, 13, the above-mentioned impact force is absorbed, and stable running without damage to the traveling device 3 is possible. A load detection means 5 is provided in the hydraulic chambers of the left and right rolling cylinders 13, 13.
, 5 are provided as pressure sensors 24, 24.

Further, the grain discharge auger 1 provided in the grain storage device 2 is configured to be able to pivot by the telescopic operation of a pivoting hydraulic cylinder 26 having a stroke sensor 25. 27 is a hydraulic cylinder for lifting and lowering. The pressure sensors 24, 24 and the stroke sensor 25 are connected to the input side of the controller 17, and the solenoid 28 for operating the swing hydraulic cylinder 26 is connected to the output side of the controller 17. This is the linking means 6.

With the above configuration, when the detected values from the left and right pressure sensors 24, 24 are different, the controller 17 sends the An output is applied to the solenoid 28 to cause the swinging hydraulic cylinder 26 to expand and contract, causing the grain discharge auger 1 to swing. This series of operations is such that, for example, when the load on the right traveling device 3 is greater than the load on the left traveling device 3, the grain discharge auger 1 is turned to the left. That is, the vehicle body 7
The grain discharge auger 1 is rotated in the direction opposite to the direction in which the center of gravity changes.

[Brief explanation of drawings]

FIG. 1 is a plan view of a combine harvester according to an embodiment of the present invention.

FIG. 2 is a side view of a combine harvester in an embodiment of the present invention.

FIG. 3 is a sectional view of essential parts in an embodiment of the present invention.

FIG. 4 is a sectional view of essential parts in an embodiment of the present invention.

FIG. 5 is a hydraulic circuit diagram of essential parts in an embodiment of the present invention.

FIG. 6 is a control block diagram in one embodiment of the present invention.

[Explanation of symbols]

1 Grain discharge auger 2 Grain storage device 3. Traveling device 4 Swivel means 5 Load detection means 6. Connection means

Claims (1)

[Claims] 1. In a combine harvester equipped with a grain storage device 2 having a grain discharge auger 1 and left and right traveling devices 3, 3, the grain discharge auger 1 has a grain discharge auger 1. 1, and the left and right traveling devices 3, 3 are provided with load detecting means 5, 5 for detecting the load applied to the left and right traveling devices 3, 3, and the load detecting means 5
, 5. A balance control device for a combine harvester, characterized in that a linking means 6 is provided for operating the turning means 4 based on the detection results of the combine harvester.