JP2569378Y2 - Automatic paddy tank lifting device in combine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an automatic paddy tank lifting and lowering device in a combine which automatically discharges paddy discharged into a paddy tank during a harvesting and threshing operation and which is sequentially accumulated by raising the paddy tank itself. More particularly, the present invention relates to an automatic paddy tank elevating device in a combine that can adjust a delay control time until the paddy tank is automatically raised, depending on the amount of paddy accumulated.

[0002]

2. Description of the Related Art In general, in a combine configured to release threshed paddy from a fryer into a paddy tank for storage, the paddy is transferred from the paddy tank to another storage container before the paddy is full and overflows. In recent years, it has been known that after moving the discharge auger to the rice discharge position by operating the rice discharge switch, the paddy tank is automatically raised after a certain period of time to discharge the rice. ing. However, those having the above structure, regardless of the rice full state or other paddy of state of the discharge, because the predetermined delay time later and without rice tank does not increase, particularly in the case paddy small amount It takes a considerable amount of time from the start of the ascent of the paddy tank until the discharge of the paddy actually starts, and workers who dislike the length of the waiting time often remove the paddy tank by operating a manual switch. However, there is a drawback that the advantage of automatically raising the paddy tank cannot be fully utilized and the efficiency of the paddy discharge operation cannot be sufficiently improved.

[0003]

[Problem to be Solved by the Invention] The present invention has been made in view of the above-mentioned situation, and is intended to automatically raise paddy tanks.
The operation delay time required for the paddy tank in the paddy tank is large.
Is automatically changed according to the detection decision
The waiting time for paddy discharge required when the amount is small
The purpose of the present invention is to provide a paddy tank automatic elevating and lowering device in a combine which can perform a smooth paddy discharging operation and can improve the efficiency of the operation.

[0004]

Means for Solving the Problems In order to solve the above problems, the technical means adopted in the present invention is to automatically discharge the paddy stored in the paddy tank by the raising operation of the paddy tank. In the combined combine, a plurality of sensors for detecting the amount of stored paddy are provided at predetermined intervals in the vertical direction in the paddy tank, and a detection signal of each sensor is sent to a lifting / lowering mechanism of the paddy tank via a delay timer circuit. In addition, the delay timer circuit gradually increases the amount of delay time of the detection signal for each detection from the lower sensor to the upper sensor.
It is characterized by being configured to increase control.

[0005]

Therefore, according to the present invention, as the harvesting and threshing work progresses, the paddy after threshing and sorting is sequentially stored in the paddy tank, and when discharging the paddy, the paddy tank is stored in accordance with the stored paddy amount. Since the rise time of the rice is automatically controlled, the smooth paddy discharge operation can be efficiently performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described in detail with reference to an embodiment shown in the drawings. 1 to 7, reference numeral 1 denotes a combine, and the combine 1 is a crawler traveling device 2.
At the front part of the machine body frame 3 provided with a stalk, a pre-processing part 6 composed of a grain cultivated body 4, a weeding body 5 and the like is mounted to be able to move up and down freely, and behind it, driving operation parts 7a and 7b are provided. A driver's seat 8 provided at the front and side portions is provided. In addition, a paddy tank 9 is provided on one side of the rear portion of the driver's seat 8 and a threshing unit 10 is provided on the other side of the paddy tank 9. After being lifted and transported by the spiral 10a and stored in the paddy tank 9, it is discharged from the discharge port 13a of the discharge auger 13 through the horizontal feed spiral 11 and the vertical feed spiral 12 disposed at the bottom of the paddy tank 9. Is done.

A lifting mechanism 14 is provided with a hydraulic cylinder 14a for vertically tilting the paddy tank 9 about the axis of the horizontal feed spiral 11 as a rotation fulcrum. The lifting mechanism 14 is provided in the operation section 7b. Switch 15a of paddy tank 9
And expand / contract operation by the on / off operation of the down switch 15b, while rotating the paddy tank 9 toward the side of the aircraft,
Raising and lowering switches 15a, 15b for the paddy tank
An auger operation lever 16 is provided in the vicinity of the position shown in FIG.
As shown in the figure, the turning range A and the turning range B respectively controlled by the turning limit switches 17, 18 and the auger discharging zone switch 19 disposed at the turning base end of the discharge auger 13.
Within the range of the discharge auger 1 by the motor gear mechanism 13b.
3 is controlled to move. Reference numeral 20 denotes a grain discharging lever, and the tilting operation of the lever 20 closes a grain discharging lever switch 20a.
1 and the vertical feed spiral 12 are configured to rotate and transport the stored paddy to the discharge auger 13. In addition, 15c is a timer switch for starting a delay timer circuit (not shown), 15d is a manual operation lever for raising and lowering the paddy tank 9, and sensors SW1, SW2, and SW3 described later are not shown by closing the timer switch 15c. The paddle tank 9 is connected to the delay timer circuit, and the paddle tank 9 can be moved up and down by operating the manual operation lever 15d regardless of the activation of the timer switch 15c.

On the other hand, sensors SW1 and SW2 for detecting the presence or absence of the paddy in the paddy tank 9 are provided inside the rear portion of the paddy tank 9.
And SW3 are vertically arranged at predetermined intervals, and the up switch 1 provided in the operation section 7b.
In connection with the start operation of 5a, the control unit (not shown) is configured to set a standby state for the detection of paddy.

In the above-described configuration, in performing the mowing and threshing operation, if the machine is made to enter the raised culm culm, the hull culm cut by the pre-processing unit 6 is threshed by the threshing unit 10 and threshing and sorting is performed. The later paddy is stored in a paddy tank 9 arranged behind the driver's seat 8. Here, a control operation for transferring and discharging the paddy in the paddy tank 9 to the outside via the discharge auger 13 as necessary during the harvesting and threshing operation will be described with reference to FIGS. 9 and 10.

First, when the grain discharge lever 20 is tilted, the grain discharge lever switch 20a is closed, and the horizontal feed spiral 11 and the vertical feed spiral 12 enter a rotation standby state. Next, when the auger operating lever 16 is tilted back and forth and left and right, the discharge auger 13 pivots to the discharge position, and the discharge port 1 is moved toward a predetermined discharge zone by the motor gear mechanism 13b.
3a is rotated, and the rotation stops when the auger discharge zone switch 19 is closed. Thereafter, if the timer switch 15c is in the ON state, the delay timer circuit (not shown) is turned ON and OFF depending on the amount of paddy as shown in FIG.
The delay time t is gradually set to t1, t2, t3 and t4 in response to the sensors SW1 to SW3 that perform F. That is, each delay time t is t1 <t2 <t3 <t
4 and is set, for example, in the paddy tank 9
When the paddy is full within, the maximum delay time t
After 4 hours, the elevating mechanism 14 is activated, the paddy tank 9 is raised by the hydraulic cylinder 14a, and the paddy is discharged from the discharge port 13a of the discharge auger 13 to the outside through the horizontal feed spiral 11 and the vertical feed spiral 12. When the amount of paddy is small enough to be less than the sensing position of the sensor SW1, the minimum delay time t
1, the elevating mechanism 14 is activated and the paddy tank 9 is raised. Similarly, when the paddy amount is an intermediate amount (SW1 is ON and SW2 is OF
(F or SW2 is ON and SW3 is OFF), the elevating mechanism 14 is activated after the delay time of t2 and t3, respectively, and the raising operation of the paddy tank 9 is performed.

Accordingly, the time until actual paddy tank 9 rises from the transition to the discharge control operation by operating the grain discharge lever 20 can be set appropriately according to the paddy amount, as in the prior art The worker gets off the driver's seat 8 and checks the amount of paddy in the paddy tank 9 visually, and the amount of paddy is small.
In such a case , the troublesome work of manually raising the paddy tank 9 is not required, and the labor for paddy discharge work can be significantly reduced, and the work efficiency can be improved.

[0012]

[Effect of the Invention] In short, the present invention relates to a combine configured to automatically discharge the paddy stored in the paddy tank by the raising operation of the paddy tank, and to store the paddy in the vertical direction in the paddy tank. A plurality of sensors for detecting the presence of a predetermined interval, and sends the detection signal of each sensor to the lifting mechanism of the paddy tank via a delay timer circuit,
The delay timer circuit, for each detection of each sensor, from the lower sensor to the sensor of the upper, because the delay time of the detection signal <br/> is configured to control gradual increase, fir tank rises to discharge The operation delay time can be set automatically, and the worker checks the amount of paddy one by one and determines whether to automatically raise the paddy tank or to perform a manual switching operation. In the case, without performing the troublesome operation of raising the paddy tank by manual operation,
The rising time of the paddy tank can be automatically controlled according to the state of paddy in the paddy tank in full or other paddy state .
This has an extremely useful practical effect that the waiting time can be shortened and the efficiency of the paddy discharging operation can be improved.

[0013]

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a perspective view of a main part of a driving operation unit.

FIG. 5 is an enlarged plan view of an auger operation lever.

FIG. 6 is an operation explanatory view of a grain discharge lever.

FIG. 7 is an enlarged view of a main part showing an arrangement of sensors.

FIG. 8 is an operation explanatory view showing a mechanism at a base end portion of the discharge auger.

FIG. 9 is a flowchart showing a control sequence for raising the paddy tank.

FIG. 10 is a control flowchart showing a relationship between a sensor and a delay timer circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 9 Paddy tank 14 Elevating mechanism SW1 sensor SW2 sensor SW3 sensor

Claims (1)

(57) [Scope of request for utility model registration] In a combine configured to automatically discharge the paddy stored in the paddy tank by the raising operation of the paddy tank, a sensor for detecting the amount of paddy stored in the paddy tank in a vertical direction is provided at a predetermined interval. The delay timer circuit is provided, and a detection signal of each sensor is sent to the raising / lowering mechanism of the paddy tank via the delay timer circuit.
For each detection of each sensor leading to the lower level of the sensor from the sensor, rice tank automatic lifting device in combine, characterized by being configured to gradually increase the control delay time of the detection signal.