JPH084844Y2 - Grain discharging device in grain tank of combine harvester - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention has a threshing device and a grain tank mounted on a machine base, and the grain in the grain tank is lifted by a discharge cylinder. The present invention relates to a discharge cylinder operating device in a grain tank of a combine for sending and discharging.

(B) Conventional technology Conventionally, a threshing device and a grain tank are mounted on a machine base having a traveling device, and a grain is provided by providing a discharge tube close to the grain tank and having an upper part capable of undulating and turning. A combine harvester for pumping and discharging grains in a grain tank is already known.

(C) Problems to be solved by the invention With the known combine, when the grains in the grain tank are discharged and loaded onto the bed of the truck and loaded, the driver seated in the driver's seat tilts the discharge cylinder. Or, while turning, the other operator sent a signal to the operator of the combine while observing the state of grain accumulation on the loading platform, which caused the discharge tube to turn, but Since it is separated from the loading platform, it is difficult to accurately recognize the distance between the tip of the discharge cylinder and the component member of the truck, and it is difficult to operate as instructed above, so that the discharge cylinder collides with the truck and There were problems that the discharge gutter, etc. at the tip might be damaged, and that it could turn unexpectedly and be dangerous.

(D) Means for Solving the Problems In the present invention, the threshing device 1 and the grain tank 7 are mounted on a machine base 2 having a traveling device, and the grains in the grain tank 7 are In the combine for lifting and discharging by the undulating and swiveling discharge tube 8, the operation members 21, 22 are arranged in the longitudinal direction of both side surfaces of the discharge tube 8 near the front end side.
And sensing means for detecting that the operating members 21 and 22 are operated, respectively, and the discharge cylinder 8 is connected to the turning drive device so as to turn in the operating direction of the operating members 21 and 22. Solved the problem.

(E) Action When the harvesting threshing work is performed by the combine and the grain tank is full, the machine is brought close to a truck parked on the road, etc., and the upper part of the discharge cylinder is tilted upward and horizontally swung. The discharge gutter faces the truck bed and the grains are pumped and discharged.

Then, the truck driver or other worker installs the grains in the entire area of the truck bed in a substantially uniform manner, and the opposite side to the side to be swung, which is provided in the longitudinal direction of both side surfaces near the front end side of the discharge tube. When the operation member located on the side is pressed toward the discharge tube, the sensing means on that side enters the detection state, whereby the discharge tube turns in the operating direction of the operation member, and when the operation member turns to the desired position, the operation is performed. It stops when the members are released.

Also, when the completion time of the above operation is delayed, or when the driver of the combine is turning the discharge cylinder at the driver's seat, when the operation lever comes into contact with the truck, the sensor on that side detects it. In this state, the discharge cylinder turns in the opposite direction, and when it leaves the truck, the turning is stopped.

(F) Embodiment An embodiment of the present invention will be described with reference to the drawings. 1 is a threshing device mounted on one side of a machine base 2 having a traveling device, and in front of the throwing device 3 and grain culm transport. A pretreatment device including a device 4 is mounted so as to be able to move up and down, and on the other side of the machine base 2, an operation panel 5, a driver's seat 6, and a grain tank 7 are provided in order from the front.

Further, at the rear of the grain tank 7, a discharge tube 8 whose lower part communicates with the lower rear end of the grain tank 7 is erected, and the discharge tube 8 is provided with a discharge gutter 20 at its front end, and at the same time, threshing is performed. It is possible to vertically tilt and horizontally swivel in a portion substantially corresponding to the upper surface of the device 1, the hydraulic cylinder 10 tilts the discharge cylinder 8 vertically about a horizontal transmission shaft 11, and the motor 12 causes the gear 12 to rotate.
3, 14 and pins 17 on the outer circumference of sprocket 15 and holding cylinder 16
・ The upper part of the discharge cylinder 8 is horizontally swung to and fro through the chain 18 stretched in the direction.

A pair of left and right operations are provided near the front end of the discharge tube 8 toward the discharge gutter 20 such that the gripping portions face each other along the longitudinal direction of both side surfaces of the discharge tube 8 in plan view. The levers 21 and 22 that are members are pivotally supported so that they can be horizontally tilted, and sensing switches 23 and 24 that are sensing means are attached near the lever pivotal support portion of the discharge cylinder 8, respectively, and inside the levers 21 and 22 near the base portion. Is a projection 2 that abuts the sensing switches 23 and 24.
A munitions machine 2 which is provided with 5, 26 and which holds the projections 25, 26 at positions slightly apart from the detection switches 23, 24 at the bases of the levers 21, 22.
7,27 are attached.

The detection results of the sensing switches 23, 24 are input to the microcomputer 28 for automatic control of the combine, and the microcomputer 28
28 controls the motor 12 so that it rotates either forward or backward according to the detection result.

In the above combine, when the grain threshing work is performed and the grain tank 7 is full, the driver brings the machine closer to the truck parked on the road and operates the hydraulic lever to extend the hydraulic cylinder 10. When operated, the upper part of the discharge cylinder 8 tilts upward around the transmission shaft 11, and when the switch lever on the operation panel 5 is then operated to the left or right, the motor 12 rotates to one side. Turns to the left or right, and the discharge gutter 20 at its front end faces the truck bed.

Therefore, when the discharge lever provided in the vicinity of the control section is operated, the transfer spiral installed on the bottom of the grain tank 7 and the lifting spiral in the discharge cylinder 8 rotate, and when the shutter on the transfer spiral is opened, The grains in the grain tank 7 are pumped and discharged, and then fed from the discharge gutter 20 to the loading platform.

Then, when the operator boarding the operator's seat 6 of the combine turns and adjusts the discharge tube 8 by the switch lever of the operation panel 5 in order to load the lifted grains on the respective parts on the bed substantially evenly, the discharge is performed. When the tip of the cylinder 8 tries to collide with the truck, the lever 21 abuts against an obstacle such as the truck and rotates in the direction of arrow A, as shown in FIG. Is detected, the microcomputer
28 outputs a signal to the control circuit of the motor 12 to rotate the discharge cylinder 8 in the A direction, so that the discharge cylinder 8 also rotates in the A direction,
This turning causes the lever 21 to return and rotate away from the obstacle, and the motor 12 is stopped when the sensing switch 23 enters a non-detection state.

When the lever 22 on the other side is pushed in the direction of arrow B by the obstacle and the sensing switch 24 is in the detection state, the discharge cylinder 8 also turns in the direction of B, and the lever 22 separates from the obstacle as in the case described above. Then, the motor 12 is stopped, so that the discharge cylinder 8 is not damaged.

Although the (electric) motor 12 is illustrated as an example of the swing drive device in the above-described embodiment, it may be a hydraulic cylinder controlled by a solenoid valve or another.

(G) Effect of the Invention As described above, the present invention mounts the threshing device 1 and the grain tank 7 on the machine base 2 having the traveling device, and the upper portion of the grain in the grain tank 7 is undulated. And in a combine configured to be discharged and discharged by the discharge tube 8 which can be turned,
Operation members 21 and 22 in the longitudinal direction of both side surfaces near the front end side of the discharge tube 8 and a sensing means 2 for detecting that they are operated
3 and 24 are provided respectively, and the sensing means 23 and 24 are connected to the swivel drive device 12 so that the discharge cylinder 8 swivels in the operating direction of the operating members 21 and 22, so that the grains in the grain tank 7 are When the driver's seat 6 is swung to change the discharge position while being discharged and loaded by the discharge cylinder 8 on the loading platform of a truck or the like, if the discharge cylinder 8 does not collide with an obstacle, the rotation is performed. Immediately before the collision regardless of the direction, either one of the operation members 21 (or 22) is operated by contacting the obstacle, and the sensing means 23, 24 are in the detection state, whereby the turning drive device 12 Rotates the discharge tube 8 in the operating direction of the operating members 21, 22, that is, in the direction away from the obstacle,
When 21,22 moves away from the obstacle, the swing drive 12 stops,
Moreover, the operating members 21 and 22 can detect an obstacle in a wide range in the longitudinal direction of both side surface portions near the front end side of the discharge cylinder 8,
It is possible to favorably prevent damage to the discharge tube 8.

Further, when the operation members 21 and 22 installed as described above change the discharge position of the discharge tube 8 while watching the grain loading state on the loading platform, the operation members 21 and 22 are moved in a direction in which the discharge tube 8 is moved. Can be easily pushed from the nearest position, and by this operation the discharge tube 8 is swung in the same direction as the pushing direction, and when it moves to the desired position, it is stopped by letting go of the hand. Even at the upper position, the discharge position of the discharge tube 8 can be easily and easily changed and adjusted.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a plan view of an essential part, FIG. 2 is a perspective view of a combine, and FIG. 3 is a sectional view of a vertically tilting and swiveling drive part of a discharge cylinder. is there. 1 ... Threshing device, 2 ... Machine stand, 5 ... Operation panel, 6 ... Driver's seat 7 ... Grain tank, 8 ... Discharge cylinder, 12 ... Motor (swing drive device) 21,22 ... Lever (operating member) 23,24 …… Sensing switch (sensing means)

Claims (1)

[Scope of utility model registration request] 1. A threshing device 1 and a grain tank 7 are mounted on a machine base 2 having a traveling device, and the grain in the grain tank 7 can be undulated and swiveled at its upper portion. In the combine designed to be lifted and discharged by the operation members 21 and 22 in the longitudinal direction of both side surface portions of the discharge tube 8 near the front end side.
And sensing means for detecting that the operating members 21 and 22 are operated, respectively, and the discharge cylinder 8 is connected to the turning drive device so as to turn in the operating direction of the operating members 21 and 22. Grain discharging device in grain tank of combine harvester.