JPS6120479Y2 - - Google Patents

Description

[Detailed description of the invention] This invention switches the switching valve by pushing up and pulling down a single operating lever, and undried paddy is stretched and circulated to the main body of the dryer, or dried paddy is sent to the grain lifting machine. At the same time, when the dried paddy is reliably switched and supplied to the grain lifting machine, the operation lever is moved back and forth after a time lag, the grain lifting machine is started to operate, and the dried paddy is transferred to an appropriate place. The present invention relates to a transmission switching device for a drying grain lifting machine that reliably prevents undried paddy from being accidentally discharged outside due to an operator's erroneous operation, and at the same time reduces wear and tear on the grain lifting machine and simplifies the entire device.

Conventionally, a horizontal gutter for filling and circulation and a communication pipe for collection were connected in a continuous manner to the supply gutter of the elevator attached to one side of the dryer main body, and these horizontal gutter or communication pipes were connected to the left and right sides of the switching valve. It is connected or shut off by rotational operation, and the clutch device is immediately operated in response to the switching operation of the switching valve to put the grain lifting machine in an inoperable state during tensioning and circulation operations. A transmission switching device for a grain raising machine for a dryer capable of intermittent operation of power so as to be in an operating state during collection of grains is well known and was described before the present application, for example, in Japanese Utility Model Publication No. 1254/1983.

By the way, in the case of the above-mentioned conventional device of this kind,
What is the switching operation of the switching valve and the intermittent operation of the grain lifting machine?2
This was done at the same time by alternately lowering the tow string, so when the tow string was mistakenly pulled to the side where the switching valve was in the dry paddy collection state during undried paddy tensioning and circulation work, In addition to the drawback that a serious error occurs in that the undried paddy is immediately discharged to the outside by the grain lifting machine that is in operation, there is also the problem that the entire apparatus becomes expensive due to the use of a clutch device.

Therefore, in this invention, the switching valve is equipped with a single operating rod that can be moved up, down, and back and forth freely, and the other end of the operating rod connected in the middle of the operating rod is used to tension and loosen the transmission belt. It is connected to the actuating piece extending from the pivot portion of the sliding rod that performs the operation, and a bullet is stretched across the sliding rod and the actuating piece, so that the switching operation of the switching valve and the operating operation of the grain lifting machine are controlled. In addition to preventing erroneous operation accidents caused by workers by preventing these operations from occurring at the same time, undried paddy can be stretched and circulated into the dryer main body by pushing up and down a single operating rod and moving back and forth, or drying. The above-mentioned problems have been solved by providing a transmission switching device for a grain lifting machine for a dryer, which has the purpose of accurately accomplishing paddy collection work with a simplified configuration.

In view of the above, and in order to achieve the above object, the present invention has a structure in which the supply gutter of the elevator attached to one side of the dryer body is covered with a horizontal gutter for circulation and the communication pipe for collection are connected to each other. The horizontal gutter or communication pipe can be connected or disconnected by the left and right rotation of the switching valve, and the conveyor screw shaft suspended horizontally in the horizontal gutter and the lifting machine can be connected to each other. The rotating shaft is connected by a power transmission belt that is tensioned and relaxed by the sliding movement of the sliding rod. A single operating rod is installed to connect the elevator and the communication pipe in a communicating manner, and the other end of the operating rod connected in the middle of the operating rod is connected to an operating piece extending from the pivot portion of the sliding rod. This is a transmission switching device for a grain lifting machine for a dryer, characterized in that the operation of the grain lifting machine is intermittent by the back and forth movement of the operating rod, and a bullet is stretched across the sliding rod and the operating piece. be.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus of the present invention will be described with reference to a preferred embodiment shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a dryer main body that can perform circulation drying by blowing drying air on paddy flowing vertically;
An elevator 2 is attached to return the paddy discharged from the lower part of the dryer to the upper part of the dryer main body 1. Elevator 2
The lower end of the supply gutter 3 provided at the head of the dryer is connected to the supply start end of a horizontal gutter 4 installed horizontally at the top of the dryer main body 1, and a carry-in screw shaft 5 is rotatably installed inside the horizontal gutter 4. It is suspended horizontally. A communication window 6 is opened at the bottom of the horizontal gutter 4 on the supply start end side.
A grain lifting machine 7 is connected to the communication window 6 via a communication pipe 9 having a switching valve 8 which can be rotated left and right. Therefore, when the communication window 6 is closed by the switching valve 8, the undried paddy supplied from the elevator 2 is carried into the dryer main body 1 through the horizontal gutter 4, or a circulation drying operation is carried out. When the communication window 6 is opened by the rotation of the switching valve 6 and the switching valve 8, dried paddy is switched and supplied from the elevator 2 to the grain lifting machine 7 via the communication pipe 9. The grain lifting machine 7 attached to one side of the dryer main body 1 has a receiving trough 1 to which the lower end of the communication pipe 9 is open-connected.
0 and a flip-up main body 11 that rotatably houses a flip-up impeller 13 fixed to a flip-up rotating shaft 12.
and are connected in a continuous manner. The carry-in screw shaft 5 and the flip-up rotation shaft 12 are pivotally connected at one end, and a tension pulley 15 is attached to the other end.
The grain lifting machine 7 is brought into a lower operating state or an operating state by being transmission-connected by a transmission belt 16 that is tensioned or relaxed by the pressing and separating action of the floating sliding rod 14.

An operating rod 17 is attached to the rotating shaft 23 of the switching valve 8 via a link rod 18, and an elastic member is connected to the link rod 18 and the communicating pipe 9 located further from the rotating shaft 8 with respect to the link rod 18. The machine 19 is tensioned, and the switching valve 8 is rotated by pushing up the operating rod 17 to open the communication window 6, and the communicating window 6 is opened by the switching valve 8 by pulling the operating rod 17 down. Operation rod 1
The other end of the actuating rod 20, whose proximal end is slidably connected along the operating rod 17 in the middle of the sliding rod 17, is pivotally connected to the actuating piece 21 extending from the pivot portion of the sliding rod 14, and the sliding rod 14 and the actuating piece are connected. 21 are connected by the bullet 22, and the sliding rod 1 is moved by moving the operating rod 17 back and forth.
4 is the tension pulley 1 with the pulling elasticity of the bullet 22.
5 is brought into pressure contact with the transmission belt 16 or separated from the transmission belt 16 to interrupt or interrupt power transmission as needed.

Next, its effect will be explained.

Now, when one operating rod 17 is pulled down as shown in FIG. 3, the switching valve 8 is rotated counterclockwise about the rotating shaft 23, accurately closing the communication window 6, and the transmission belt 16 is rotated. Shion pulley 1
5 is not pressed, only the conveying screw shaft 5 is driven and rotated. If the elevator 2 is operated under such conditions to supply paddy from the supply gutter 3 to the horizontal gutter 4, the paddy will be conveyed through the horizontal gutter 4 by the conveying screw shaft 5, and will be transferred to the dryer main body 1 one after another. Once a predetermined amount of paddy has been filled, the dryer body 1 is set to a dry state, and the paddy flowing down the dryer is exposed to drying air to dry it somewhat, and the dried paddy is is returned to the dryer main body 1 via the elevator 2, the supply gutter 3 and the horizontal gutter 4, thereby achieving a circulating drying operation. Therefore, when the paddy is dried to a predetermined moisture content by the above-described operation, the blowing of the drying air is stopped. Therefore, when you want to collect and carry out the dried paddy outside the dryer main body 1 using the grain lifting machine 7, first push up the operating rod 17 as shown in FIG. The supply gutter 3 and the communication pipe 9 are opened to be in communication with each other.

Next, if the dried paddy inside the dryer main body 1 is supplied toward the communication window 6 by the elevator 2, the dried paddy will be transferred to the horizontal gutter 4.
The grains are dropped from the communication window 6 through the communication pipe 9 into the receiving trough 10 of the grain lifting machine 7 without being transferred to the container. Therefore, once it is confirmed that the dried paddy has been reliably supplied into the grain lifting machine 7, the operating rod 17 is moved in the direction of the arrow in FIG. 4, and the operating piece 21 is pulled by the operating rod 20 and rotated. , tension pulley 1 due to the pulling elasticity of the bullet 22
5 is brought into pressure contact with the transmission belt 16 and tensioned, power is transmitted to the flip-up rotary shaft 12 to rotate the flip-up impeller 13, and dry rice can be collected and transferred to an appropriate location. Therefore, there is a time difference between the switching operation of the switching valve 8 and the operation start operation of the grain frying machine 7, so that the transfer direction can be confirmed sufficiently. By intermittent operation of the grain lifting machine 7 at the same time as the operation, there is no possibility that undried paddy is supplied to the grain lifting machine 7 and discharged from the machine due to an operator's erroneous operation.

In short, the present invention connects the supply gutter 3 of the elevator 2 attached to one side of the dryer main body 1 with the horizontal gutter 4 for filling and circulation and the communication pipe 9 for collection, respectively, and connects these horizontal gutter 4. Alternatively, the communication pipe 9 can be connected or disconnected by the left and right rotation operation of the switching valve 8, and can also be connected to the transfer screw shaft 5 horizontally suspended in the horizontal gutter 4 and the flip-up rotation shaft of the grain lifting machine 7. 12 is a transmission belt 16 that is tensioned and relaxed by the sliding movement of the sliding rod 14, and is connected for transmission.The switching valve 8 has a rotary shaft 23 that connects the elevator 2 and the horizontal gutter 4 in communication with each other by pulling down. In addition, a single operating rod 17 is installed which connects the elevator 2 and the communication pipe 9 by pushing up, and the other end of the operating rod 20 connected in the middle of the operating rod 17 is connected to the pivot point of the sliding rod 14. The operation of the grain lifting machine 7 is connected to the extended operating piece 21, and the operation of the grain lifting machine 7 is intermittent by the movement of the operating rod 17 back and forth.
, so when one operating rod 17 is pulled down, the switching valve 8 switches between the elevator 2 and the horizontal gutter 4.
When the operating rod 17 is pushed up, the elevator 2 and the grain lifting machine 7 are brought into communication, so that the undried paddy can be easily loaded and circulated. When collecting dry paddy using the grain lifting machine 7, the operation of the grain lifting machine 7 is performed intermittently by moving the single operating rod 17 back and forth. Can be done. Therefore, the switching operation of the switching valve 8 and the grain lifting machine 7
Since the intermittent operation of the paddy can be done in a timely manner, even if the operator makes a mistake when loading undried paddy and starting the circulation work, this makes it easy to check the direction of paddy supply and ensure speedy operation. Of course, it is possible to correct malfunctions and ensure that proper feeding operations are carried out accurately. It is possible to easily prevent dried paddy from being discharged outside the dryer main body 1, and as a result, work safety can be further improved, and the overall structure of the device is simpler and cheaper, and there is no occurrence of breakdowns. It has the effect of making it possible.

[Brief explanation of the drawing]

The drawings show an embodiment of the device of the present invention, in which Fig. 1 is an overall front view, Fig. 2 is an enlarged side view of the main part with a part cut away and partially broken, and Fig. 3 is an enlarged side view of the main part with a part cut away.
The figure is an enlarged front view of a partially broken main part during tensioning and circulation work, and FIG. 4 is an enlarged front view of a partially broken main part during dry paddy discharge work. 1... Dryer body, 2... Elevator, 3... Supply gutter, 4... Horizontal gutter, 5... Conveyance screw shaft, 7
... Grain frying machine, 8 ... Switching valve, 9 ... Communication pipe, 12
...Flip-up rotating shaft, 14...Sliding rod, 16...
Transmission belt, 17... operating rod, 20... operating rod,
21... Actuation piece, 22... Bullet machine.

Claims (1)

[Scope of utility model registration request] A horizontal gutter for filling and circulation and a communication pipe for collection are connected to the supply gutter of the elevator attached to one side of the dryer body in a continuous manner, and these horizontal gutter or communication pipes are operated by the left and right rotation of the switching valve. The conveying screw shaft suspended horizontally in the horizontal gutter and the flip-up rotating shaft of the grain lifting machine are connected or disconnected by a transmission belt that is tensioned and relaxed by the sliding movement of the sliding rod. In the transmission-connected type, the rotary shaft of the switching valve is equipped with a single operating rod that connects the elevator and the horizontal gutter by pulling down, and connects the elevator and the communication pipe by pushing up. The other end of the operating lever connected midway through the operating lever is connected to an operating piece extending from the pivot portion of the sliding lever, and the operation of the grain lifting machine is intermittent by the forward and backward movement of the operating lever. 1. A transmission switching device for a grain lifting machine for a dryer, characterized in that a bullet is stretched across the and the operating piece.