JPH047692Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention includes a planting clutch interposed in the transmission system to the plurality of planting claw drive mechanisms, and interlocks with each of the planting claw drive mechanisms. The present invention relates to a rice transplanter equipped with a powder feeding device for feeding powder and granular material to the side of a planned planting area.

[Conventional technology]

This type of rice transplanter is equipped with a device that detects when the flow rate of powder or granular material per unit time on the downstream side of each of the feed rolls has decreased to a set value or less, and a device that detects when the flow state detection device detects the The facility is equipped with an alarm device that activates when

[Problem that the invention attempts to solve]

In the case of such a conventional machine, the occurrence of a clogging phenomenon in the dispensing section of each strip of the powder dispensing device can be reliably and quickly detected by an alarm device that operates based on the detection operation of the fluid state detecting device. However, the following problems still existed.

In other words, when changing the number of planting rows at the edge of a ridge, etc., the feeding roll of the powder feeding device corresponding to the planting stop row is stopped, so even if the entire plant is in a normal state, the planting will be stopped. There was a problem that the alarm device malfunctioned based on the detection operation of the flow state detection device of the row, and there was also a problem that the alarm device malfunctioned every time the planting clutch was disengaged.

An object of the present invention is to enable accurate detection of only the clogging phenomenon of the powder and granular material feeding device.

[Means for solving problems]

The characteristic configuration of the rice transplanter according to the present invention includes a first detection device that detects that the planting clutch is in the engaged state, and a first detection device that detects that each feeding section of the powder and granular material feeding device is in the powder and granular material feeding state. and a third detection device that detects that the flow rate of the powder or granular material per unit time on the downstream side of each of the feeding parts has decreased to a set value or less, and The present invention is provided with a device for preventing an abnormality in the supply of powder or granular material, such as an alarm device or an engine stop device, which is activated when the third detection device corresponding to the detection device is detected, and its functions and effects are as follows. .

[Effect]

In a state where the first detection device detects that the planting clutch is in the engaged state and the second detection device detects that the feeding portion is in the feeding state, the second detection device corresponds to the second detection device. Only when the third detection device detects a clogging phenomenon of powder or granular material, a device for preventing abnormality in powder supply, such as an alarm device or an engine stop device, is activated based on the detection operation. In order to change the planting stop row, the powder and granular material delivery unit corresponding to the planting stop row is stopped,
Alternatively, even if the planting clutch is disengaged to make a turn at the edge of a ridge, the alarm system will not malfunction as in the past.

[Effect of idea]

Therefore, it is possible to accurately detect only the clogging phenomenon of the powder feeding device, thereby avoiding unnecessary work interruptions due to malfunctions of alarm devices, etc., which are used to prevent abnormalities in powder and granular material supply. As a result, we were able to improve work efficiency.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

A is a traveling aircraft equipped with an engine E, a transmission case M, and front and rear wheels 1 and 2. B is a four-row seedling planting device that is connected to the rear of the traveling body A via a link mechanism 3 so that it can be driven up and down. It is equipped with two grounded floats 5, a drive mechanism 7 for forcing four rows of planting claws 6 to move in forced circulation between the seedling take-out port of the seedling stand 4 and the mud surface, and a planting case 8. The transmission system from the planting case M to the planting claw drive mechanism 7 includes a planting clutch 9 that drives and stops all the planting claw drive mechanisms 7 at the same time, and a planting claw drive mechanism 7, 7 in units of two rows. A row clutch 1 for individually driving and stopping the driving of the
0 is interposed.

C is an example of a granular material dispensing device and is a fertilizer dispensing device installed in the seedling planting device A. This is a fertilizer dispensing device that is installed in the four discharge cylindrical portions 11a formed on the lower side of the fertilizer storage tank 11. A drive rotating shaft 13, 1 with a hexagonal cross-section is installed, extending over two feeding cases 12, 12 corresponding to the row clutches 10, 10.
A feeding roll 14 having recesses 14a, 14a for measuring and storing fertilizers formed at appropriate intervals in the circumferential direction on the outer circumferential surface of each of the feeding rolls 14 is fitted and fixed to each of the feeding rolls 3 and 3. A pair of brushes 15 that are in sliding contact are provided on the feeding case 12 so that their mounting positions can be adjusted freely.

Further, a plate-shaped bracket 17 in a vertical direction attached to the support fitting 16 of the grounding float 5 is connected to the feeding case 12 through a hose 18, and seedlings are removed by the planting claws 6 as the aircraft advances. A trencher 19 forms a fertilizer supply groove at a position corresponding to the lateral side of the planned planting area, and a trencher 19 removes foreign matter such as straw waste and grass that exists in front of the trencher 19. A plate-shaped contaminant removal member 2 that is pushed into and guided into the
0, as well as a backfilling member 21 that refills the groove after fertilizer supply, and the drive rotation shaft 13
and the swinging arm 7a of the planting claw drive mechanism 7 are interlocked and connected via the link mechanism 22, and by reciprocating the feeding roll 14 within a certain angle, the recesses 14a, 14a of the feeding roll 14 are or 14
b, the fertilizer stored in 14b is transferred to the furrower 19
The structure is such that the liquid is supplied downstream into the groove formed by.

23 is an example of a first detection device that detects that the planting clutch 9 is in the engaged state, and is a switch that is turned ON when the operating lever 25 of the planting clutch 9 is operated to the clutch engaged position. .

24 is an example of a second detection device that detects that each delivery roll 14 is in a driving state, and is a switch that detects the reciprocating drive of the drive rotation shaft 13.

26 is an example of a third detection device that detects that the flow rate of fertilizer per unit time on the downstream side of each delivery roll 14 has decreased to a set value or less, in other words, that clogging has occurred; Said hose 18
This is a pressure sensing sensor installed flush with the inner surface of the The pressure sensor 26 is of a type that senses, for example, intermittent pressure changes and converts them into electrical signals, and determines that a blockage has occurred when the intermittent pressure changes stop.

The pressure sensing sensor 26 also includes a rod-shaped sensing tool 2 that protrudes into the hose 18 in a substantially perpendicular manner.
6a are arranged in series. In this case, the falling fertilizer collides with the sensing device 26a, and the impact force is transmitted to the pressure sensing surface via the sensing device 26a.
Sensitive sensing becomes possible.

In addition, 27 in the figure indicates both the switches 24 and 25.
This is an example of a device for preventing abnormality in powder supply that operates based on the clogging detection signal of the pressure sensor 26 corresponding to the feeding roll 14 that is in the driving state only when both are ON. This is a warning device. Further, 14b is a seed measuring/accommodating recess used when the fertilizer dispensing device C is used as a seed dispensing device for direct sowing of paddy fields, and in this case, the dispensing roll 14 is used by being reversed by 180 degrees.

28 is a fertilizer storage tank mounted on the front part of the traveling body A. The front fertilizer storage tank 28 and the rear storage tank 11 are connected to each other via a transport device 29, and a drive mechanism 30 for the transport device 29 is provided in the front storage tank 28.

[Another example]

When changing the number of planting rows, the row clutch 10 was cut in the above embodiment, but in a type of rice transplanter that does not have such a row clutch 10, the planting claw 6 corresponding to the planting stop row is not driven. While holding the placed seedlings in place outside the claw movement trajectory, the pair of left and right roll portions 14A and 14B constituting the feed roll 14 are moved relatively close to each other, as shown in FIG. The discharge cylinder part 11a of
By closing the opening of this feed roll 1
The feeding of fertilizer according to step 4 may be substantially stopped.

Further, although an alarm device was used in the above-mentioned embodiment as the powder supply abnormality prevention device 27, an engine stop device or the like may be used instead.

Further, in the above-mentioned embodiments, a case has been described in which fertilizer is used as the powder, but a growth promoter or the like may be used in place of this.

Furthermore, in the above embodiment, the third detection device 26
Although a pressure sensor is used as the pressure sensor, other passage detection sensors may be used, or a sensor that detects the flow rate of the powder or granular material per unit time may be used.

[Brief explanation of drawings]

The drawings show an embodiment of the rice transplanter according to the present invention, in which FIG. 1 is an electric circuit diagram, FIG. 2 is a side view of the seedling planting device, and FIG. 3 is a side view of the entire rice transplanter. 7... Planting claw drive mechanism, 9... Planting clutch,
10... Row clutch, 14... Feeding part, 24,2
5, 26...Detection device, 27...Device for preventing abnormality in supply of powder and granular material, C...Device for feeding powder and granular material.

Claims (1)

[Claims for Utility Model Registration] 1. A planting clutch 9 is interposed in the transmission system to the plurality of planting claw drive mechanisms 7, and a planting clutch 9 is interposed in the transmission system to the plural planting claw drive mechanisms 7, and the planting claw drive mechanism 7 is interlocked with the planting claw drive mechanism 7 to connect the planting claw drive mechanism 7 to the side of the planned planting location. In a rice transplanter equipped with a powder feeding device C on the side for feeding powder and granular material, a first rice transplanter detects that the planting clutch 9 is in an engaged state.
a detection device 24, a second detection device 25 for detecting that each feeding section 14 of the powder/granular material feeding device C is in a powder/grain material feeding state, and each of the feeding sections 1;
A third detecting device detects that the flow rate of the powder/granular material per unit time on the downstream side of No. 4 has decreased below a set value.
A detection device 26 is provided, the first detection device 24 and the second detection device 25 are in the detection operation state, and a third detection device 26 corresponding to the second detection device 25 is provided.
A rice transplanter equipped with a powder supply abnormality prevention device 27 such as an alarm device or an engine stop device that is activated when the detection device 26 detects it. 2 The transmission system is a planting claw drive mechanism 7 for each required row.
A rice transplanter according to claim 1, which is equipped with a row clutch 10 for individually driving and stopping the rice transplanter. 3. The rice transplanter according to any one of claims 1 to 2, wherein the granular material is a granular fertilizer.