JPS6243889B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a powder discharge device for a powder transport vehicle.

In general, a powder transport vehicle that transports powder and granular materials such as feed has a screw conveyor installed in the longitudinal direction of the bottom of a storage tank mounted on the chassis to form a transfer section. A conveyance means is connected to the end, and the conveyance means includes a screw conveyor housed in a vertical conveyance cylinder that communicates with the transfer section, and a screw conveyor housed in a discharge tube that communicates with the vertical conveyance cylinder in a freely undulating manner. The screw conveyor is configured to rotate the powder and granular material contained in the storage tank in the normal direction and discharge it to a silo or the like from the opening at the tip of the discharge tube (1983). −32950
(see publication).

In this type of powder transport vehicle, all screw conveyors are operated and stopped by a control lever provided at the rear of the tank. Therefore, when one worker puts feed (powder and granules) into a silo, it is necessary to climb the silo to monitor the feed being put into the silo, and on the other hand, it is necessary to climb up the silo to monitor the feed being put into the silo. In order to grasp this and stop the rotation of the screw conveyor, it is necessary to get off the silo and operate the control lever.

In addition, when aligning the discharge port at the tip of the discharge tube and the input port of the silo, the exact position cannot be determined from the control lever installed at the rear of the tank, so the silo and powder transport vehicle must be moved back and forth. There was a problem that caused me to have to do it.

In this way, the operator has to go back and forth between two separated positions each time, that is, between the upper part of the silo and the rear part of the powder transport vehicle, which poses a problem in that the work is very cumbersome.

The present invention has been made in view of this point, and includes operating means provided at the rear of a powder storage tank and at the tip of a conveyance means for transporting and discharging powder from the inside of the powder storage tank to the outside. It is an object of the present invention to provide a discharging device for a powder and granular material transport vehicle in which at least the above-mentioned transport means can be started, stopped, and raised or lowered by the operation means, thereby reducing the labor of the operator.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings.

In FIG. 1, numeral 1 denotes a powder transport vehicle, which transports various kinds of feed and the like. A powder storage tank 3 is mounted on the chassis 2, and the lower part thereof has an inverted triangular cross section with both side surfaces slanting inward.A screw conveyor 4 is provided in the longitudinal direction at the bottom of the tank 3 to form a transfer section. 5 are configured. A conveyance means 6 is provided behind the powder storage tank 3, and the conveyance means 6 is provided with a vertical conveyance cylinder 7 communicating with the transfer section 5, and a screw conveyor 8 is installed inside the conveyance means 6. Further, a base end portion of a discharge tube 9 is provided in the upper part of the vertical conveyance tube 7 so as to be freely undulating and communicated therewith, and a screw conveyor 10 is installed therein. A undulation cylinder 11 is provided between the vertical conveyance cylinder 7 and the discharge cylinder 9, and a bellows-shaped lead-out cylinder 12 is provided in communication with the tip of the discharge cylinder 9, and the lead-out cylinder 12 is foldable. It is configured.

13 is a lifting lever for raising and lowering the discharge pipe 9;
Reference numeral 4 denotes a discharge lever for rotating the screw conveyors 4, 8, and 10 to discharge the feed in the storage tank 3, each of which is disposed at a rear position of the powder storage tank 3 and constitutes one operating means. There is. 1
Reference numeral 5 denotes an open/close switch provided at the tip of the discharge tube 9 to stop the rotation of the screw conveyors 4, 8, and 10, and constitutes the other operating means.

Note that 16 is a silo into which feed is fed.

FIG. 2 shows a hydraulic circuit used in the apparatus of the present invention. 22, 20, 21 are hydraulic motors for rotationally driving the screw conveyors 4, 8, 10; 23 is a solenoid operating valve for switching forward/reverse rotation of the hydraulic motor 20; 24 is the hydraulic motor 21;
25 is a solenoid operating valve for the hydraulic motor 22, and these operating valves are equipped with a switching solenoid and a manual switching discharge lever 14.
On the other hand, the hydraulic motor 20 for the screw conveyor of the vertical conveying cylinder 7 and the hydraulic motor 21 for the screw conveyor of the discharge cylinder 9 are connected to the solenoid operating valves 23 and 24, respectively.
0 is connected to the screw conveyor hydraulic motor 22 of the transfer section 5 via a solenoid operating valve 25, and the pressure oil supply sides of the solenoid operating valves 23 and 24 are connected to oil pumps 26 and 27.
Furthermore, 28 is a solenoid operating valve for controlling expansion and contraction of the undulating cylinder 11, and is connected to the oil pump 26 via the solenoid operating valve 23.

Note that 23a and 24a are solenoid operated valves 2.
3 and 24 are normal rotation parts, 23b and 24b are the same stop parts,
25a is the normal rotation part of the solenoid operating valve 25, 25b
is the same stop portion, and is interlocked by selecting the ejection position and the stop position of the ejection lever 14.

29 is a relief valve, and 30 is an oil reservoir. By the way, in order to control the hydraulic circuit, the above-mentioned open/close switch 15 is provided at the tip of the discharge tube 9. , 8 and 10, and the raising and lowering of the discharge tube 9. Specifically, each solenoid operating valve 23,
Each solenoid operating valve 23, 2 is energized to switch the solenoid 24, 25 to its forward rotation portion, and the on/off switch is operated to the stop side.
4 and 25 to their stop portions, the energization to each solenoid is released.

Similarly, the solenoid-operated valve 28 is wired to the solenoid so as to be controlled via an on/off switch.

Note that FIG. 2 shows a hydraulic motor 31 for rotating the vertical conveying cylinder 7, and a normal rotation of the hydraulic motor 31;
Although a solenoid operated valve 32 for reverse control is also described, it may be configured to be manually rotated as in the conventional case.

Next, to explain the operation of the above device, when feeding the feed (powder) in the powder storage tank 3 into the silo 16, first operate the up-and-down lever 13 at the rear operation section to open the operating valve. 28 to the left position, and the ejection cylinder 11 is used to raise and rotate the discharge tube 9 from the traveling storage position, and the conveying means 6 is rotated by a rotation device (not shown) to be guided into the silo 16. The cylinder 12 is made to hang down, and the operation valve 2 is opened.
Return 8 to the center position.

Next, the operating valves 23, 24, 25 are
a, 24a, 25a (at this time, the operating valves 23, 24, 25 are in communication with the oil pumps 26, 27). Therefore, all the screw conveyors 4, 8, and 10 are rotated, and the powder and granular material in the storage tank 3 is charged into the silo 16. Silo 16
While the feed is being put into the silo, an operator usually climbs onto the silo 16 and monitors how the feed is being filled into the silo 16.

When the silo 16 is full, the solenoid operated valves 23 and 2 can be opened by operating the on-off switch 15 as appropriate.
4, 25 are returned to the normal position, the pressure oil of the oil pumps 26, 27 flows to the oil reservoir 30, and normal rotation of all the screw conveyors 4, 8, 10 is stopped.

Note that even if the on-off switch 15 is not used,
Of course, all the screws 4, 8, and 10 can be stopped by the ejection lever 14.

Furthermore, if the opening/closing switch 15 is operated as appropriate from the operating section at the tip of the discharge cylinder 9, the elevating cylinder 11
Since the discharge tube 9 can be operated to extend and contract, the ejection tube 9 can be raised and lowered at the same time.

In addition, if the on/off switch of the solenoid operating valve 32 that controls the hydraulic motor 32 of the conveyance means 6 is installed at the tip of the conveyance means 6, all the screws 4, 8, 10 can be stopped and started, the discharge tube 9 can be raised, etc. It is also possible to lower and rotate the conveying means 6 on top of the silo 16.

As described above, the present invention provides at least operating means for starting, stopping, and raising and lowering the conveying means at the rear position of the powder storage tank mounted on the vehicle chassis and at the tip of the discharge pipe constituting the conveying means. By providing this, at least the above-mentioned conveyance means can be started, stopped, and raised from any position. For example, when feeding feed into a silo, an operator can not only be on the ground but also stand alone while on the silo. This has an excellent effect in that the conveyance means can be started and stopped or raised and lowered with the help of a button, and the discharge work can be carried out efficiently.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the present invention, and Fig. 1 is a side view of a granular material carrier that is feeding feed (powder and granular material) into a silo, and Fig. 2 is a hydraulic circuit diagram of the device of the present invention. It is. DESCRIPTION OF SYMBOLS 1... Powder transport vehicle, 2... Vehicle platform, 3... Powder storage tank, 4, 8, 10... Screw conveyor, 5... Transfer section, 6... Conveying means, 7... Vertical Conveyance tube, 9... Discharge tube, 12... Output tube, 15...
...Opening/closing switch, 20, 21, 22... Hydraulic motor, 23, 24, 25, 28... Solenoid operated valve.

Claims (1)

[Claims] 1. A screw conveyor is provided in the longitudinal direction of the bottom of a powder storage tank mounted on a vehicle chassis to form a transfer section, and a transfer means is connected to the rear end of the transfer section. , the conveying means includes a screw conveyor housed in a vertical conveyance cylinder communicating with the transfer section, and a screw conveyor housed in a discharge cylinder communicating with the vertical conveyance cylinder through an undulating cylinder so as to be able to rise and fall freely. In the powder transport vehicle, which discharges the powder and granules stored in the powder and granule storage tank from the tip of the discharge tube by the screw conveyor driven by a hydraulic motor, the hydraulic motor and the undulating A solenoid operating valve is connected to the cylinder, and an operating means for switching and controlling the solenoid operating valve is disposed at the rear of the powder storage tank and at the tip of the discharge pipe, and A powder discharge device for a powder transport vehicle, characterized in that the operation of at least the hydraulic motor and the undulation cylinder is controlled by operating one of them. 2. A powder discharge device for a powder transport vehicle according to claim 1, wherein the conveying means is rotated by a rotating means.