JP2011030488A - Traveling-type working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traveling-type working machine to stop a spraying of dusting powder when a clutch is disconnected, thereby preventing careless omission of stop operation of the feed mechanism and reducing wasteful spraying of the powder by installing a clutch pedal switch to stop the feed mechanism of the spraying device in the case of disconnecting the clutch. <P>SOLUTION: The traveling-type working machine is provided with a traveling body 3 having a clutch 2 to connect and disconnect power transmission to a traveling system and a spraying device 6 attached to the traveling body 3 and spraying the dusting powder H in a tank 4 to a field F by driving a motor M of the delivery mechanism 5. The traveling body 3 is provided with a main switch 7 to start or stop the delivery mechanism 5 and the clutch pedal switch 8 to stop the delivery mechanism 5 in the case of disconnecting operation of the clutch 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a traveling work machine having a spraying device.

DESCRIPTION OF RELATED ART Conventionally, the mobile agricultural machine provided with the working machine interlock | cooperated with the engine mounted in the traveling machine body and the fertilizer application apparatus which performs fertilization work (fertilizer spreading) is known.
This mobile agricultural machine branches the power transmission path from the engine into a traveling system transmission path that transmits power to the traveling unit and a working machine system transmission path that transmits power to the work equipment. It is comprised so that the motive power to a fertilizer may be taken out from a path | route (refer patent document 1).

JP-A-10-295130

  The conventional mobile farming machine has a structure in which the transmission path of the traveling system can be cut off by setting the transmission gear to the neutral position and the power to the fertilizer is extracted from the upstream side of the transmission gear. It is possible to perform fertilization work even if it is in the middle, and if you forget to stop the fertilizer application, fertilizer is sprayed on the same place while the mobile farm machine is stopped, and the fertilizer is wasted There's a problem.

  In view of such a point, the present invention stops the forgetting operation of the feeding mechanism by stopping the feeding of the spraying agent by the clutch disengagement operation that is always performed when the vehicle is stopped during work, thereby reducing the waste of the spraying agent. It is an object of the present invention to provide a traveling work machine that can be used.

In order to solve the above-mentioned problems, the ground working device according to the present invention employs the following technical means.
First, a traveling body 3 having a clutch 2 for connecting and disconnecting traveling system power, and a spraying agent H attached to the traveling body 3 and spraying agent H from a tank 4 to a field F by driving a motor M of a feeding mechanism 5. A traveling work machine having a spraying device 6 that performs the above operation, the traveling body 3 includes a main switch 7 that activates or stops the feeding mechanism 5 and a clutch that stops the feeding mechanism 5 when the clutch 2 is disconnected. A pedal switch 8 is provided.

Secondly, the spraying device 6 is mounted on a rotary tiller 9 that is mounted on the rear part of the traveling body 3 so as to be movable up and down, and stops the feeding mechanism 5 when the rotary tiller 9 is raised. A rising interlock switch 10 is provided.
Third, the feeding mechanism 5 is configured to be driven when the main switch 7, the clutch pedal switch 8, and the ascending interlock switch 10 are closed.

  Due to these features, by providing the clutch pedal switch 8 that stops the feeding mechanism 5 of the spraying device 6 when the clutch 2 is operated to be disconnected on the traveling body 3, the clutch 2 is always disconnected when the traveling work machine 1 is stopped. Since the operation and the stop of the feeding mechanism 5 are linked, it is possible to eliminate forgetting to stop the feeding mechanism 5 of the spray agent H when the traveling work machine 1 is stopped, and to reduce wasteful spraying when the traveling work machine 1 is stopped.

  Moreover, by installing the spreading device 6 on the rotary tiller 9 that is mounted on the rear part of the traveling body 3 so as to be movable up and down, and providing the ascending interlock switch 10 that stops the feeding mechanism 5 when the rotary tiller 9 is raised, Even when the rotary tiller 9 is raised during turning of the traveling work machine 1, it is possible to eliminate the forgetting to stop the feeding mechanism 5, and it is possible to save the spray agent H by eliminating spraying during turning. .

  Further, the driving mechanism 1 can be driven when the main switch 7, the clutch pedal switch 8, and the lift interlock switch 10 are closed, so that the traveling work machine 1 can be stopped without operating the main switch 7. When the clutch 2 is disengaged, or when the traveling work machine 1 is turned, the feeding mechanism 5 is stopped only by raising the rotary tiller 9, so that erroneous operation can be eliminated and waste of the spray agent H can be eliminated.

According to the present invention, by providing a switch for stopping the feeding mechanism of the spraying device when the traveling system clutch is disengaged, when the traveling work machine is stopped, the forgetting operation of the feeding mechanism is forgotten, and the spraying agent is wasted. It can be omitted.
In addition, when the vehicle travels again after the traveling system clutch is disengaged, the feeding mechanism is automatically driven, and it is possible to prevent a region where the spraying agent is not sprayed from occurring.

The side view of the traveling working machine which concerns on this invention. The figure which shows the circuit (closed state) of the feeding mechanism in the spreading device of a traveling working machine. The side view which showed the principal part of the clutch pedal switch. The perspective view which showed the principal part of the raise interlocking switch at the time of a rotary tiller raise.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a traveling work machine 1 according to the present invention.
The traveling work machine 1 includes a tractor 3 as a traveling body, a rotary cultivator 9 with a ridge former attached to the rear portion of the tractor 3, and a spraying device 6 mounted on the rotary cultivator 9. ing.

The tractor 3 includes a two-shaft, four-wheeled vehicle body 21, and the vehicle body 21 is connected to the engine housing 22 mounted on the front portion, a clutch housing 23 connected to the rear portion of the engine 22, and the clutch housing 23. Mission case 25 is provided. The engine 22, the battery B, and the like are covered with an openable / closable bonnet 24.
On a floor 27 formed on the upper surface of the vehicle body 21, a standing steering post 28, and pedals such as a clutch pedal 29, an accelerator pedal, and a brake pedal positioned on the left and right of the steering post 28, A driver seat 30 and the like disposed behind the steering post 28 are provided.

The clutch housing 23 accommodates the clutch 2 that cuts off and connects the traveling system power from the engine 22 to the transmission. The clutch pedal 29 is connected to the clutch pedal 29 below the floor 27 and on the side of the clutch housing 23. A clutch operation unit 31 is provided to be operated by stepping on.
As shown in FIG. 3, the clutch operating portion 31 includes the clutch pedal 29 whose base end is pivotably supported, a clutch arm 26 fixed to the base end of the clutch pedal 29, A clutch rod 32 having one end connected to the clutch arm 26; a clutch lever 33 having one end connected to the other end of the clutch rod 32 and the other end pivotally supported by the clutch housing 23 via a clutch shaft 34; A clutch release fork (not shown) mounted on the clutch shaft 34 in the clutch housing 23 is provided. The clutch pedal 29 is urged upward by a spring 29 a that connects the base end portion and the vehicle body 21.

  In a state where the clutch pedal 29 is biased upward, the clutch operation unit 31 transmits (connects) the power from the engine 22 to the transmission and depresses the clutch pedal 29 (see the phantom line in FIG. 3). At this time, the traveling system power is cut off via the clutch rod 32, the clutch lever 33, the clutch shaft 34, and the clutch release fork.

An operation piece 35 is attached to the clutch lever 33. The operation piece 35 swings integrally with the clutch lever 33 when the clutch pedal 29 is depressed, and is an automatic return contact type push-type switch. The push button 36a of the device 36 is disposed at a position where the push button 36a is pushed.
The operation piece 35 is a substantially L-shaped plate-like body, and includes a base portion 35a that is fixed in a sandwiched manner in the middle portion of the clutch lever 33, and a portion (contact portion) 35b that is a bent front end of the base portion 35a. Have. The contact portion 35b is formed by being bent obliquely with respect to the longitudinal direction of the base portion 35a so as to face the push button 36a of the switch device 36 when the clutch pedal 29 is depressed.

The switch device 36 is fixed to the side wall of the clutch housing 23 with a bolt or the like, and when the clutch pedal 29 is not depressed and the push button 36a is not depressed, the motor in the feeding mechanism 5 of the spraying device 6 described later. The circuit C of the motor M is closed, and the circuit C of the motor M is opened when the push button 36a is pushed.
The operation piece 35 and the switch device 36 described above constitute a clutch pedal switch 8 that stops the feeding mechanism 5 of the spraying device 6 when the clutch 2 is depressed (that is, when the clutch 2 is turned off).

The operation piece 35 and the switch device 36 in the clutch pedal switch 8 may be retrofitted to the existing clutch operation unit 31 (clutch lever 33 or the like) or the clutch housing 23.
As shown in FIG. 1, the tractor 3 has a pair of left and right fenders 37 provided on the left and right outer sides of the driver seat 30, and a lops 38 erected on the rear side of the driver seat 30.

A main switch 7 in the spraying device 6 is provided on the upper surface of the middle part of the right fender 37. The main switch 7 includes an on / off lever 7a for starting or stopping the feeding mechanism 5 of the spraying device 6, and an adjustment knob 7b for adjusting the spraying amount of the spraying agent H per unit time.
When the on / off lever 7a is tilted to the entrance side, the circuit C of the motor M of the feeding mechanism 5 described later is held in the closed state, and when the on / off lever 7a is tilted to the cut side, the circuit C of the motor M is held in the open state.

The LOPs 38 includes a pair of left and right support columns 39L and 39R, and a lateral beam 40 that connects the left and right support columns 39L and 39R. Further, a chain 68 of the ascending interlock switch 10 to be described later is wound around the left column portion 39L of the lops 38.
A rotary machine frame 42 is mounted on the rear part of the vehicle body 21 of the tractor 3 so as to be movable up and down via a link mechanism 41. A rotary cultivator (center drive system) 9 supported by the rotary machine frame 42 is connected to a rotary machine frame 42. It has a cultivating part 43, a ridge forming device 44 and a spraying device 6. The rotary cultivator 9 may be a side drive type.

The rotary machine frame 42 includes a pair of left and right support arms 46 extending from the central gear case 45 to the left and right sides, a spreader frame 47 extending upward from the left and right support arms 46, and the gear case 45. And a transmission case 48 having an upper portion connected to the lower end side.
Under the transmission case 48, a claw shaft 50 having a plurality of cultivating claws (claw claw type) 49 for cultivating the field F is provided so as to be rotatable around the left and right axial centers to form a rotary cultivating portion 43. .

In the rotary tiller 43, the driving force from the PTO shaft of the tractor 3 is transmitted to the claw shaft 50 via a transmission mechanism provided in the gear case 45 and the transmission case 48. When the claw shaft 50 rotates in the direction of arrow A in FIG. 1, the tilling claw 49 plows and reverses the soil and crushes the soil.
An arc-shaped tilling cover 51 is attached to the rotary machine frame 42 in a side view covering the upper side of the rotary tilling portion 43, and a pair of left and right brackets 52 extending rearward are provided on the upper surface of the tilling cover 51. A support frame 53 is fixed to the extended portion, and a hook forming device 44 for forming the hook U is attached to the support frame 53 and the tillage cover 51.

The support frame 53 includes a tool bar 54 disposed in the left-right direction at the rear ends of the left and right brackets 52, and an attachment body 56 for a spreader 55 provided in the middle of the tool bar 54 in the left-right direction.
The toolbar 54 is configured by a square pipe or the like, and is connected to the rear ends of the left and right brackets 52 by welding or the like.

On the lower side of the support frame 53, a pair of left and right guide plates 57 for guiding the soil released backward from the rotary tiller 43 to the center in the left-right direction, and extending from the inner edges of the left and right guide plates 57 to the rear A wrinkle former 44 is provided.
The guide plate 57 is formed by arranging two plate-like bodies in a substantially C shape in plan view, forming a ridge forming port between the left and right guide plates 57, and removing the soil released backward. They are gathered to the center and guided to the back cage 44.

  The scissors molding machine 44 has a top plate 58 that extends substantially rearward from the scissor molding port, and a pair of left and right side plates 59 that are attached to the left and right ends of the top plate 58 in a substantially C shape in the rear view. The top plate 58 and the left and right side plates 59 are provided so as to be along the edge of the bowl forming port. That is, the soil cultivated by the rotary cultivating portion 43 is formed into a ridge U having a substantially trapezoidal cross section by passing through the ridge forming device 44. The top plate 58 is formed with an insertion hole 58a through which the spreader 55 is inserted.

On the other hand, on both the left and right sides of the rod forming device 44, gauge wheels 60 that roll on the left and right sides of the rod U and determine the tilling depth of the rotary tiller 43 are disposed.
The left and right gauge wheels 60 are supported by a support frame body 61 that is swingably attached to a middle portion of the left and right support arms 46, and spans the support frame body 61 and the top mast above the gear case 45. A height adjusting unit for adjusting the height of the wheel 60 is provided.

  As shown in FIG. 1, the spraying device 6 includes the above-described sprayer frame 47, a pair of left and right tanks 4 that are supported by the sprayer frame 47 and store the spray agent H, and the left and right tanks 4. The left and right feeding mechanisms 5 that are respectively attached to the lower ends and feed the spraying agent H, the guide hoses 62 that guide the spraying agent H fed from the feeding mechanisms 5 downward, and the guide hoses 62 The right and left spraying tools 55 for spraying the spraying agent H behind the rotary tiller 43 and in the basket U, and the automatic return contact type pulling type switch box 63 for stopping the feeding mechanism 5 are provided.

In addition, the spray agent H is a granular, powdery fertilizer, seed, or the like. Further, spraying refers to fertilizer application, seed sowing (dispersal seeding, row seeding, spot sowing, etc.), and the like.
The spreader frame 47 includes a pair of left and right support columns 64 that can be adjusted in height, a horizontal beam member 65 that extends between the upper ends of the left and right support columns 64, and a tank mounting frame 66 that is fixed to the horizontal beam member 65. Have.

Each support column 64 is supported by a swinging bracket 64a provided on the upper surface of a middle portion in the left-right direction of each support arm 46 so as to be rotatable about the left-right axis.
A link connecting portion 65a to which the connecting rod 41a of the link mechanism 41 is connected is provided at a substantially central portion in the left-right direction of the cross beam member 65, and the swinging of the left and right support columns 64 is restricted, and the rotary tiller Even when 9 is moved up and down, the level of the tank 4 can be adjusted by adjusting the length of the connecting rod 41a. In addition, the switch box 63 is attached to the cross beam member 65 at a midway portion in the left-right direction and slightly to the left from the center.

As shown in FIG. 4 (in a state where the rotary tiller 9 is raised), the switch box 63 has a pull pin 63a that can move to the vertical positions X and Y on the front surface of the lower end portion, and the tip of the pull pin 63a. Further, the chain 68 is connected to the chain 68 wound around the base end portion of the left column portion 39 </ b> L of the lops 38 via the coil spring 67.
The pull pin 63a is urged downward, and is arranged so as to be pulled up to the coil spring 67 to the upper position X (see the phantom line) when the rotary tiller 9 is lowered to the field F.

One end (rear end) of the coil spring 67 is connected to the pull pin 63a of the switch box 63, and the chain 68 is connected to the other end (front end).
The middle part of the chain 68 is wound around the base end part of the left column part 39 </ b> L of the LOSS 38, and one end is connected to the other end (front end) of the coil spring 67. The other end of the chain 68 is a stop ring 68 a that can be connected to one end or a middle part of the chain 68, and the stop position can be adjusted according to the distance between the switch box 63 and the lops 38.

  Therefore, when the rotary tiller 9 is lowered by adjusting the stop position of the chain 68, the chain 68 and the coil spring 67 are tensioned, and the pull pin 63a of the switch box 63 is moved to the upper position X (the virtual position in FIG. 4). When the rotary tiller 9 is raised, the tension of the chain 68 and the coil spring 67 is loosened, and the pulling pin 63a of the switch box 63 is set to the lower position (see the solid line in FIG. 4) Y. It becomes possible.

The switch box 63 closes the circuit C of the motor M in the feeding mechanism 5 of the spraying device 6, which will be described later, at the upper position X where the chain 68 and the coil spring 67 are pulled by the pull pin 63a. In the lower position Y, the open state is set.
These switch box 63, coil spring 67, chain 68, and lops 38 constitute the ascending interlocking switch 10.

The tank 4 is attached to the tank mounting frame 66 one on each of the left and right sides, and tapers downward and has a discharge outlet at the center of the lower part. Therefore, the granular or powdery spray H in the tank 4 gathers in the lower center and is sent to the feeding mechanism 5 from the outlet.
The feeding mechanism 5 includes a casing 5 a provided at the lower end of the tank 4, a feeding roll 69 that is rotatably supported inside the casing 5 a, and a motor M that rotates the feeding roll 69.

The feeding roll 69 is a cylindrical body that can rotate around the left and right axes at a predetermined rotational speed, and a plurality of spraying concave portions 69a for feeding the spraying agent H are provided on the circumferential surface at predetermined intervals along the circumferential direction. Is formed. Further, by adjusting the rotation speed of the motor M that rotates the feeding roll 69, the feeding amount of the spraying agent H per unit time can be adjusted.
FIG. 2 shows a circuit C of the motor M of the feeding mechanism 5.

  The circuit C includes a battery B that supplies current to the motor M, the clutch pedal switch 8, the main switch 7, and the lift interlock switch 10 described above, the motor M of the feeding roll 69, and the ground G. The clutch pedal switch 8, the main switch 7, and the lift interlock switch 10 are connected in series, and current is supplied to the motor M only when the clutch pedal switch 8, the main switch 7, and the lift interlock switch 10 are closed. Then, the feeding mechanism 5 is driven to feed out the spray H.

  The delivered spray H is supplied to the left and right sprayers 55 through the guide hose 62. As shown in FIG. 1, the spreading tool 55 is connected to the lower end of the cylindrical portion 55 a that supplies the spraying agent H from the guide hose 62 downward, and is inserted into the basket U. And a nozzle portion 55b having a rear opening shape. The spreader 55 is attached to the upper portion of the cylindrical portion 55a so as to be adjustable in height by the mounting body 56 of the toolbar 54 described above, and can spread the spraying agent H to a predetermined depth in the basket U.

A usage mode of the traveling work machine 1 according to the present invention will be described.
First, the rotary cultivator 9 lowered to the field F is pulled by the tractor 3 and the field F is cultivated by the rotary tiller 43.
Next, the cultivated soil is gathered in the center by the guide plate 57 at the rear of the rotary cultivating section 43, and at the same time, the culvert U is formed (raised) by passing through the culvert former 44, The spraying agent H is sprayed from the spraying tool 55 in the mold U.

Further, when it is confirmed whether spraying is normally performed during the uprighting in the field F, the tractor 3 (the traveling work machine 1) is stopped.
At this time, the operator performs a clutch disengagement operation (that is, depresses the clutch pedal 29), disengages the clutch 2, and the traveling work machine 1 stops. However, by depressing the clutch pedal 29, the clutch lever 33 and the clutch lever 33 are integrated. The swinging operating piece 35 pushes the push button 36a of the switch device 36, and the circuit C of the motor M of the feeding mechanism 5 is necessarily opened. Therefore, the current supply from the battery B to the motor M is cut off, and the feeding of the spray agent H is stopped.

Thus, the clutch 2 is disengaged and the feed mechanism 5 is stopped when the traveling work machine 1 is stopped without the troublesome operation of tilting the on / off lever 7a of the main switch 7 to the cut side every time the spraying is confirmed. Therefore, it is possible to eliminate forgetting to stop the feeding mechanism 5 when the traveling work machine 1 stops, and to reduce the spraying waste of the spray agent H.
When the traveling work machine 1 departs from the vehicle, the clutch pedal 29 must be removed from the clutch pedal 29 (with the clutch 2 engaged) to start traveling. The activation of the mechanism 5 is interlocked, and the activation operation of the feeding mechanism 5 is not forgotten, so that it is possible to prevent a region where the spray agent H is not sprayed from occurring.

  Here, if an abnormality is found in the spraying condition as a result of the confirmation, and the operator gets off the traveling work machine 1, the clutch switch can be operated by turning off the main switch 7 and holding the circuit C of the motor M when the traveling working machine 1 gets off. Even if the foot is removed from 29, the spray H is not delivered. In addition, after improving the spraying condition, the main switch 7 may be turned on while riding the traveling work machine 1 and depressing the clutch pedal 29.

In the present embodiment, the circuit C of the motor M is opened only when the clutch pedal 29 is depressed, and the feeding of the spray H is stopped. However, the push button 36a of the switch device 36 is depressed by depressing the clutch pedal 29. The circuit C may be configured to be in an open state from when it is pressed until the traveling work machine 1 leaves again.
Further, when the single work rod U is set up and the traveling work machine 1 is turned in the field F, the rotary tiller 9 is raised. At this time, the tension is loosened in the chain 68 and the coil spring 67, and the pulled pulling pin 63a is lowered to the lower position Y (see the phantom line in FIG. 2), and the circuit C of the motor M of the feeding mechanism 5 is inevitably made. Open state. Therefore, the current supply from the battery B to the motor M is cut off, and the feeding of the spray agent H is stopped.

Therefore, even when the rotary tiller 9 is raised for turning, it is possible to eliminate forgetting to stop the feeding mechanism 5 without tilting the on / off lever 7a of the main switch 7 to the cutting side. Waste of H can be reduced.
In addition, this invention is not limited to embodiment mentioned above. Each configuration of the traveling work machine 1 or the like, or the overall structure, shape, dimensions, and the like can be appropriately changed in accordance with the spirit of the present invention.

The clutch 2 may be used not only for connection / disconnection of traveling system power but also for connection / disconnection of PTO system power.
The traveling body 3 may be a rice transplanter, a transplanter or the like instead of a tractor.
The spraying device 6 may spray the spraying agent H from the lower end of the opening of the guide hose 62 on the surface of the farm field F in front of the rotary tillage unit 43 without using the spraying tool 55.

The clutch pedal switch 8 and the lift interlocking switch 10 do not have to be an automatic return contact type switch, but may be a limit switch as long as the feeding mechanism 5 is stopped when the clutch 2 is disengaged or when the rotary tiller 9 is lifted. Or a contactless switch.
The switch box 63 of the ascending interlocking switch 10 may be attached slightly to the right from the center in the midway portion in the left-right direction of the cross beam member 65, and the chain 68 may be wound around the right column portion 39 </ b> R of the lops 38.

  The circuit C does not have the ascending interlock switch 10 and may be a circuit in which the main switch 7 and the clutch pedal switch 8 are connected in series.

1 traveling work machine 2 clutch 3 traveling body (tractor)
4 Tank 5 Feeding mechanism 6 Spraying device 7 Main switch 8 Clutch pedal switch 9 Rotary tiller 10 Ascending interlock switch H Spray agent M Motor F Field

Claims (3)

A traveling body (3) having a clutch (2) for connecting / disconnecting traveling system power, and a motor (5) attached to the traveling body (3) and supplying the spraying agent (H) from the tank (4) ( A traveling working machine having a spraying device (6) for driving M) and spraying on the field (F),
The traveling body (3) includes a main switch (7) for starting or stopping the feeding mechanism (5) and a clutch pedal switch (8) for stopping the feeding mechanism (5) when the clutch (2) is disconnected. A traveling work machine characterized by comprising:   The spraying device (6) is mounted on a rotary cultivator (9) mounted on the rear part of the traveling body (3) so as to be movable up and down. When the rotary cultivator (9) is raised, the feeding mechanism is provided. The traveling work machine according to claim 1, further comprising a lift interlocking switch (10) for stopping (5).   The feeding mechanism (5) is configured to be driven when the main switch (7), the clutch pedal switch (8), and the lift interlocking switch (10) are closed. The traveling work machine according to claim 2.

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