JPH0551047U - Grain tank automatic tilting device in combine - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a combine in which a grain tank is tiltably supported, and when the grain tank is discharged from the grain tank, the grain tank is adjusted according to the amount of grains accommodated therein. It is an object of the present invention to automatically perform the tilting outward and the tilting back toward the thresher. [Composition] A threshing device and a grain tank to which a discharging device is attached are provided together on a machine stand having a traveling device, and the grain tank can be tilted up and down by an elevating drive device. In the combine in which the grains to be pumped by are put into the grain tank, the decrease sensing means for sensing that the number of grains stored in the grain tank has decreased and the remaining amount of the stored grains has decreased. When the decrease sensor detects that the number of stored grains has decreased, the lower sensor is provided to detect the decrease of the number of contained grains, the grain tank is tilted outward, and the lower sensor detects that the grains are not detected. An automatic tilting device for grain tanks in a combine that is configured to lower when converted to a non-detection state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a combine grain tank automatic tilting device in which a grain tank is tiltably arranged on a machine base.

[0002]

[Prior Art]

 Conventionally, there is already known a combiner in which a threshing device and a grain tank are provided side by side on a machine platform having a traveling device, and the grain tank can be vertically tilted by a lifting drive device such as a hydraulic cylinder. ..

[0003]

[Problems to be solved by the device]

 In the known combine, when the grain in the grain tank is discharged, the driver operates the switch provided on the operation panel with an empirical feeling while observing the grain discharge state. Since the grain was discharged by tilting the tank, the operation period was too early and the lifting drive was overloaded, and the discharge efficiency was reduced because it was too late and the discharge status was monitored during discharge work. However, I had to operate the switches while doing so, which was extremely troublesome. In addition, after the grain was discharged, it was necessary to operate the switch to return the grain tank to the accepting state.

[0004]

[Means for Solving the Problems]

 The present invention is provided with a grain tank having a threshing device and a discharging device attached on a machine base having a traveling device, and the grain tank is vertically tiltable by an elevating drive device. In a combine in which grains fed by a cylinder are put into a grain tank, the decrease sensing means for sensing that the number of grains stored in the grain tank has decreased, and the remaining amount of stored grains becomes small. A lower sensor is installed to detect the fact that the lowering sensor drives the lifting drive device to raise the lowering sensor when the reduction sensor detects that the number of stored grains has decreased, and the lower tank sensor tilts outward. The above problem was solved by making the grain tank automatically tilt when the number of grains in the grain tank becomes small by configuring so that the grain lowering operation is performed when the grain detection state is changed to the non-detection state.

[0005]

[Action]

 When performing mowing threshing work, the elevating drive device is lowered to support the grain tank in the machine frame, and the grain is thrown into the grain tank from the lifting cylinder of the threshing device and a full sensor is detected. When the alarm goes off in the state, the machine is brought close to the carrier and the discharge port of the discharge device is faced to the loading platform to discharge the grain. At that time, when the decrease sensing means detects that the number of grains in the grain tank has decreased, the raising drive device automatically raises and tilts the grain tank to move the stored grains to one of the grain tanks. While continuing to discharge grains while collecting from the side, the amount of stored grains further decreases and the lower sensor changes from the ON state to the OF state, the raising / lowering drive device automatically lowers due to the detection signal. , The grain tank returns to its original, almost horizontal, receiving position.

[0006]

【Example】

 The present invention will be described in more detail with reference to the embodiments shown in the drawings. In addition to the threshing device 3 and the grain tank 5 being provided on the machine base 2 having the traveling device 1, the grain tank 5 is provided on the support frame 6. The single-acting hydraulic cylinder 8 which is erected and rotatably supported by the same axis as the discharge spiral 7 at the lower outer side, and which operates by switching the electromagnetic valve, is used to move the grain tank 5 in a substantially horizontal position as a lifting drive device. Tilted between the receiving position and the outwardly tilted grain discharging state, the fried cylinder 10 of the threshing device 3 and the fried spiral shaft installed therein are divided into upper and lower parts at the bottom plate portion of the grain tank 5. The split portion of the fried grain spiral shaft is disengaged by a joint when the grain tank 5 is rotated up and down, and the discharge cylinder connected to the transfer end of the discharge spiral 7 includes a standing cylinder 11 and a movable cylinder 12. Threshing device In front of, it is equipped with a processing device 4 before comprising a cutting device 4a and culms conveying device 4b vertically movably. Reference numeral 9 is an engine, 9a is a radiator, and 14 is a cabin.

Further, a lower limit detection sensor 13 for detecting that the grain tank 5 has descended to a lower limit is attached to the outer side of the upper end of the lower cylinder of the divided portion of the fried grain cylinder 10, and near the base of the movable cylinder 12. Is provided with an auger storage switch 15 which is turned on when the horizontal rotation angle of the movable cylinder 12 is 0, that is, when the movable cylinder 12 is in the retracted position when viewed from above. A raising manual switch 18 and a lowering manual switch 19 and a discharging lever 16 with a discharging switch 16a provided in a clutch are provided. The lower limit detection sensor 13, the auger storing switch 15, the tank raising manual switch 18, An auger discharge swing limit switch that is turned on when the tank lowering manual switch 19, the discharge switch 16a, and the movable cylinder 12 are swung outward by about 90 degrees, The auger zone limit switch 17 that the movable cylinder 12 is turned on in the range of about 180 degrees behind the grain tank 5 and the full sensor SW provided near the upper part of the grain tank 5₁ , And the lower sensor SW attached to the lower part of the grain tank₃ Is input to a control device 20 composed of a microcomputer, and the control unit 20 processes the data by a horn for alarm, a lamp, and a solenoid valve SV for raising a solenoid valve attached to the hydraulic cylinder 8.₁ Or SV₂ , A motor M for horizontally rotating the movable cylinder 12, and a solenoid SV of a solenoid valve attached to a hydraulic cylinder 21 for vertically rotating the movable cylinder 12.₃ , SV _Four Etc. (partly omitted in the drawing).

When mowing threshing work is performed and the full switch SW ₁ is turned on and an alarm is issued by the alarm, the work is interrupted and the machine is brought close to a truck parked on the road to operate. The movable lever 12 of the discharge auger is raised by the hydraulic cylinder 21 up to a predetermined angle by operating the operation lever of the section, and then horizontally swung so that its discharge port is parked on the road. When facing and rotating the discharging lever 16 provided on the threshing device 3 side to the discharging position within the range where the auger rotation zone switch is ON, the discharging switch 16a arranged at that position is turned ON. This detection signal is input to a control unit 20 composed of a microcomputer arranged in the vicinity of the operating section, and the control unit 20 sets an internal timer, and the lifting spiral and the grain in the discharge auger are set. Discharge helix 7 disposed on the bottom exterior of the tank 5 is discharged grain in grain tank 5 rotates.

When the discharge switch 16a is turned on, the timer in the control unit 20 is set, and by the time the set time elapses, the outer upper part of the grain tank 5 becomes a space, and the volume of this space is the grain tank. 5 is slightly larger than the amount of kernels stored in the part on the threshing device 3, and the lower sensor SW ₃ detects the kernels after the time set by the timer has elapsed. In the ON state, the energizing solenoid SV ₁ of the hydraulic cylinder 8 is energized, so that the grain tank 5 is pushed up by the hydraulic cylinder 8 and tilts outward, whereby it is stored above the threshing device 3. The grains that have been removed flow down to the top of the discharge spiral and are further discharged. In this way, when the amount of stored grains becomes small, the lower sensor SW ₃ is turned off from the on state, and the lowering solenoid SV ₄ of the solenoid valve is energized by the input of the detection signal, so that the hydraulic cylinder 8 is contracted. Then, along with this, the grain tank 5 is rotated downward until the lower limit detection switch 13 becomes ON, and the grain tank 5 returns to the grain receiving state.

[0010] Next will be described. Other embodiments, providing a reduced sensing an alternative intermediate sensor SW ₂ in the timer between the full sensor SW ₁ and the lower sensor SW _3, during grain discharge, grain When the space above the outer part of the tank 5 is equal to the amount of grains stored in the portion of the grain tank 5 mounted on the threshing device 3, the intermediate sensor SW ₂ is operated. The ON state is converted to the OFF state, whereby the solenoid SV ₃ for the solenoid valve of the hydraulic cylinder 8 is energized, and the grain tank 5 is tilted upward to be housed in the upper portion of the threshing device 3 as in the above-described embodiment. The grain that had been discharged flows outward and is discharged, and when the grain amount further decreases and the lower sensor SW ₄ switches from the ON state to the OFF state, the solenoid SV ₄ is energized and the grain tank 5 detects the lower limit. Su Pitch 13 is lowered pivoted to turned ON.

[0011]

[Effect of the device]

In the present invention, a threshing device 3 and a grain tank 5 to which a discharging device is attached are provided on a machine base 2 having a traveling device 1, and the grain tank 5 can be vertically tilted by a lifting drive device. In a combine in which grains fed by the fried barrel 10 of the threshing device 3 are put into the grain tank 5, a reduction sensing means for sensing that the number of grains stored in the grain tank 5 has decreased. And a lower sensor for detecting that the remaining amount of the stored grains is low, and when the decrease sensing means detects that the stored grains have decreased, the lowering sensor is activated to operate the grain tank. It is configured to tilt outwards and to lower when the lower sensor changes from the grain detection state to the non-detection state. Therefore, when discharging the grain in the grain tank 5, the discharge operation is performed by the grain tank. If the number of grains in 5 decreases, Les senses, a grain tank 5 by the sensing signal which can automatically pivotally raised, and when the grain kernels tank 5 decreases the lower Sensor SW ₃ senses it, this The detection signal causes the grain tank 5 to automatically rotate downward to return to the state of accepting grains, and in the end, the grain tank 5 automatically moves up and down in response to a change in the amount of stored grains during grain discharge. It can be rotated, the operation is simplified and the grain can be discharged with high efficiency.

[Brief description of drawings]

FIG. 1 is a side 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 control block diagram.

FIG. 5 is a grain tank elevating / lowering flowchart.

FIG. 6 is a grain tank ascending / descending flowchart.

[Explanation of symbols]

1 Traveling Device 2 Machine 3 Threshing Device 5 Grain Tank 8 Hydraulic Cylinder 10 Lifting Cylinder 12 Movable Cylinder 13 Lower Limit Sensor 20 Control Unit SW ₂ Intermediate Sensor SW ₃ Lower Sensor

Claims (1)

[Scope of utility model registration request] 1. A threshing device 3 and a grain tank 5 to which a discharging device is attached are provided together on a machine base 2 having a traveling device 1, and the grain tank 5 can be vertically tilted by a lifting drive device. In a combine in which grains fed by the fried barrel 10 of the threshing device 3 are put into the grain tank 5, a reduction sensing means for sensing that the number of grains stored in the grain tank 5 has decreased, and A lower sensor is provided to detect that the remaining amount of the stored grains is low, and the elevating and lowering drive device is operated to raise when the decrease sensing means detects that the stored grains are decreased, and the grain tank 5 is moved outward. A grain tank automatic tilting device for a combine, wherein the grain tank is tilted down, and when the lower sensor is changed from a grain detection state to a non-detection state, it is lowered.