JP2000136527A - Self-advancing soil improving machine and operating method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by performing inspection and maintenance of each equipment such as a material soil conveyor, an improving material feeder and a mixer individually by remote operation in a required place. SOLUTION: At the time of inspection and maintenance, a radio control switch 14 is turned on and an operating mode change-over switch 13 is changed over to a maintenance mode. Then a contact 13b is turned on, and relays RYA- RYD of a remote control circuit 33A are excited to turn off contacts A1, B1, C1, D1 and to turn off contacts A2, B2, C2, D2. When a first switch of a remote control panel is turned on, a first contact CH1 of a receiver 32 is turned on, and an input current flows from a controller 34 through a contact A2 to rotate an improving material feeder normally. When second, third and fourth switches of the remote control panel are turned on, the improving material feeder is reversely rotated respectively in the same way, and a material soil conveyor is rotated normally and reversely. Each equipment can therefore be operated individually in a position where the interior of the equipment is visible, so that inspection and maintenance can be easily performed by one person.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled soil improvement machine for mixing soil left over from a construction site or the like with a soil improvement agent on the spot to improve the quality of the soil, and a method of operating the same.

[0002]

2. Description of the Related Art A conventional self-propelled soil conditioner will be described with reference to a self-propelled soil conditioner shown in FIG. Body frame 1
A raw soil hopper 2 for storing the raw soil is installed at the rear end of "a", and a scraping rotor 3 is installed at an outlet portion in the raw soil hopper. An improving agent hopper 4 for storing an improving agent is installed in front of the raw material soil hopper 2, and an improving agent feeder 5 is installed in the improving agent hopper 4. Below the raw material soil hopper 2 and the improver hopper 4, a raw material soil conveyor 6 is installed on both sides, and in front of the raw material soil conveyor 6, a raw material soil and a modifier are mixed to produce an improved soil. Machine 7 is installed. In addition, a discharge conveyor 11 for improved soil discharged from the mixer 7 from below to the front of the mixer 7 is provided. Also,
At the front end of the body frame 1a, an in-vehicle operation panel 12 is installed at a position where the operator can operate the above-mentioned devices from the ground. The on-board operation panel 12 includes an operation mode changeover switch for switching between a running mode and a work mode for performing soil improvement work, a full stop switch for completely stopping the self-propelled soil improvement machine, an interlock start switch for each device, and an interlock stop. In addition to the switches, switches for independent operation of each device such as a forward / reverse switch for the raw material conveyor, a forward / reverse switch for the scraping rotor, and a forward / reverse switch for the improver feeder are provided. In the work machine mode, the operator operates the switches on the in-vehicle operation panel 12 from the ground to operate the respective devices.

[0003]

However, in the conventional self-propelled soil improvement machine, when checking and maintenance such as cleaning and elimination of clogging, the material soil conveyor 6, the improver feeder 5, and the mixer 7 are used. It is necessary to operate while watching the movement of each device. However, when operating alone, a position where the operating state of the raw material soil conveyor 6 and the improving agent feeder 5 and the like can be well confirmed, for example, between the upper portion of the raw material soil hopper 2 and the improving agent hopper 4 and the vehicle-mounted operation panel 12. Therefore, the operation is troublesome and the workability is poor. Also, in order to improve the operability, one person must signal at a position where the movement of the equipment can be seen, and the other person must operate the in-vehicle operation panel on the ground. There was a problem of reduced efficiency.

The present invention, which focuses on the above-mentioned problems of the prior art, enables a self-propelled soil improvement machine which can easily inspect and maintain a self-propelled soil improvement machine by one person and improves the efficiency of soil improvement work. It is intended to provide an operation method thereof.

[0005]

In order to achieve the above object, a method of operating a self-propelled soil improvement machine according to a first aspect of the present invention is directed to a method of operating a soil material for transferring a material soil of a material soil hopper. A conveyer, an improver feeder for supplying the improver of the improver hopper, and a mixer for crushing and mixing the raw soil conveyed by the raw soil conveyor and the improver supplied from the improver feeder to obtain the improved soil. In the method of operating a self-propelled soil improvement device having a vehicle mounted on a vehicle body, when inspecting and maintaining each device, each device is independently remotely controlled at a necessary place.

According to the first invention, at the time of inspection and maintenance such as cleaning of each device of the self-propelled soil improvement machine, elimination of clogging, etc., on the side of the device requiring inspection and maintenance, for example, a raw material soil hopper, By remotely controlling each device alone at a position where the inside of the improver hopper can be seen, reciprocating operation between the vehicle-mounted operation panel and each device is not required, and inspection and maintenance can be easily performed even by one person. Therefore, inspection and maintenance work efficiency is greatly improved.

The method of operating a self-propelled soil improvement machine according to a second aspect of the present invention is the method according to the first aspect, wherein the remote operation performed independently includes forward rotation and reverse rotation of the raw material soil conveyor and forward rotation of the improver feeder. It is characterized by at least one of the reversals.

[0008] According to the second aspect of the present invention, the normal rotation / reverse rotation of the raw material soil conveyor or the normal rotation / reverse rotation of the improving agent feeder, which particularly requires much inspection and maintenance such as cleaning and removal of soil clogging,
Inspection and maintenance are facilitated by remotely controlling at least one of them. Therefore, the inspection and maintenance work efficiency of the self-propelled soil improvement machine is greatly improved.

The self-propelled soil improvement machine according to the third invention of the present application comprises a raw material soil conveyor for transporting the raw material soil of the raw material soil hopper, an improver feeder for supplying the improver of the improver hopper, and a raw material soil conveyor. In a self-propelled soil improvement machine equipped with a mixer on the vehicle body that crushes and mixes the conveyed raw soil and the improver supplied from the improver feeder to make the improved soil, the inspection and maintenance of each equipment It is characterized by including remote control means for enabling remote control of each device independently at a necessary place.

According to the third aspect of the present invention, the remote control means can be used to remotely control the self-propelled soil improvement machine independently at a location required for inspection and maintenance of the equipment, for example, at a position of a raw material soil hopper or an improving agent hopper. Since it becomes possible, reciprocating operation between the in-vehicle operation panel and each device becomes unnecessary, and inspection and maintenance can be easily performed even by one person. Therefore, the inspection and maintenance work efficiency of each device of the self-propelled soil improvement machine is greatly improved.

The self-propelled soil improvement machine according to a fourth aspect of the present invention is the self-propelled soil improvement machine according to the third aspect, wherein a maintenance mode in which inspection and maintenance of each device can be performed, and a work mode in which soil improvement operation of each device can be performed. An operation mode switching means for switching is provided, and the remote operation means can be remotely operated between a maintenance mode and a work mode.

According to the fourth aspect of the invention, in addition to the functions and effects of the third aspect of the invention, the same remote control panel is used for both the work mode and the maintenance mode, so that the circuit is shared and the number of parts is reduced. In addition, cost, size, and weight can be reduced. Also,
In the work mode, the operator of the self-propelled soil conditioner can operate each device at a remote place, for example, a position other than the on-board operation panel, and the operator of the loader can remotely control each device of the self-propelled soil conditioner. Therefore, even if the operator of the self-propelled soil improvement machine is not present, each device of the self-propelled soil improvement machine can be remotely controlled. For this reason, the soil improvement work efficiency is improved. Further, erroneous operation between the modes can be prevented by switching between the maintenance mode and the work mode.

The method for operating a self-propelled soil improvement machine according to a fifth aspect of the present invention is the method according to the third or fourth aspect, wherein the remote control means transmits and receives signals by radio control.

According to the fifth aspect, since the remote control means transmits and receives signals by radio control, cable processing is not required as compared with the case of wired communication. Thereby, the electric wire does not get entangled in the middle and the operability can be further improved because the electric wire can be easily moved with the remote control means.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a self-propelled soil improvement machine 10 according to the present invention.
FIG. 1 is a side view showing one embodiment of the present invention, and the following devices are installed on a body frame 1a of a tracked vehicle 1 to constitute a self-propelled soil improvement machine 10. At the rear end of the vehicle body frame 1a, a raw soil hopper 2 for storing raw soil to be improved in soil quality is installed. An opening is provided in the lower part of the raw material soil hopper 2 in the front-rear direction of the vehicle, and a scraping rotor 3 is installed in the vicinity of an inner end of the opening so as to be rotatable around a horizontal axis in the left-right direction. . An improving agent hopper 4 for storing an improving agent is provided in front of the raw material soil hopper 2. Below both the raw material soil hopper 2 and the improving agent hopper 4, a raw material soil conveyor 6 for transporting the raw material soil of the raw material soil hopper 2 to the front of the vehicle is installed. An improving agent feeder 5 that supplies an improving agent from the improving agent hopper 4 to the raw material soil on the raw material conveyor 6 is provided on a bottom portion of the improving agent hopper 4. A mixing machine 7 having a rotatable cutting blade and a hammer therein in front of the raw material soil conveyor 6.
Is installed. The mixer 7 crushes and mixes the raw material soil and the improving agent to produce improved soil, and discharges the soil through the lower opening. A boarding floor 8 and an engine room 9 are installed in front of the mixer 7 in order.
Below this, a discharge conveyor 11 for transporting the improved soil discharged from the mixer 7 to the front side of the vehicle is installed. The scraping rotor 3, the improving agent feeder 5, the raw material soil conveyor 6, the mixer 7, and the discharge conveyor 11 are driven by a hydraulic motor (details will be described later).

An in-vehicle operation panel 12 of a self-propelled soil improvement machine 10 is installed at one of the left and right ends (here, right end side) of the vehicle on the side of the boarding floor 8 at a position where the operator can operate from the ground.
The in-vehicle operation panel 12 includes an operation mode changeover switch 13 for switching between a traveling mode, a work mode, and a maintenance mode, and a radio control switch 14 (both shown in FIG. 3). A full stop switch that stops the equipment entirely, feeder ON (starts sequentially from the equipment downstream of the flow of raw soil and improved soil), OFF (stops sequentially from the equipment upstream of the flow of raw soil and improved soil). A reverse switch, a forward / reverse switch for a material soil conveyor, a forward / reverse switch for a scraping rotor, a forward / reverse switch for an improving agent feeder, and the like are provided. Moreover, while switching the radio control switch 14 of the in-vehicle operation panel 12 to the radio control operation,
When the operation mode changeover switch 13 is switched to the work mode or the maintenance mode, it is possible to perform a soil improvement operation using a remote control panel, which will be described later, or an inspection and maintenance operation such as cleaning and soil clogging. Although the tracked vehicle 1 is described in the present embodiment, the present invention is not limited to this, and the same applies to a wheeled vehicle such as a loader.

The operation of FIG. 1 will be described. Raw soil is loaded on the raw soil hopper 2 from the rear of the self-propelled soil improvement machine 10 by a loader (not shown). The operation mode changeover switch 13 of the in-vehicle operation panel 12 is switched to a work mode, and each switch is activated in order from the equipment on the downstream side of the flow of the raw material soil and the improved soil at the start of the work, and the flow of the raw material soil and the improved soil at the stop of the work. To stop in order from the upstream device.
Then, the raw soil in the raw soil hopper 2 placed on the raw soil conveyor 6 is conveyed forward in cooperation with the scraping rotor 3 and improved in the improver hopper 3 supplied from the improver feeder 5. It is conveyed into the mixer 7 together with the agent. The raw soil and improver conveyed into the mixer 7 are crushed and mixed to form improved soil, and the improved soil discharged from the mixer 7 is discharged out of the self-propelled soil conditioner 10 by the discharge conveyor 11. And reused as backfill material.

FIG. 2 is a view showing one embodiment of a remote control panel (transmitter) 31 constituting the remote control means 30. The remote control panel 31 has four switches of a first switch R1 to a fourth switch R4. Will be arranged. Below the switches R1 to R4, each switch R1 when the operation mode and the maintenance mode are switched by the operation mode changeover switch 13 (see FIG. 3) disposed on the vehicle-mounted operation panel 12 shown in FIG. ~ R
A nameplate 31a for explaining the operation of the self-propelled soil improvement machine 10 corresponding to the operation 4 is attached. That is, the feeder normal rotation / stop / reverse rotation which is frequently used during soil improvement work, and the emergency stop switch which is highly urgent, are controlled by the radio control switch 14 (FIG. 3).
Remote control is also possible by switching the remote control operation to the remote control operation. When any one of the first switch R1 to the fourth switch R4 is pressed, a command signal corresponding to the switch is transmitted to a receiver 32 described later by radio control. As described in each embodiment of the remote control circuits 33A, 33B, and 33C shown in FIG. 3 and FIGS. 5 to 7, even if the same switch is operated, the operation of the self-propelled soil improvement machine 10 differs depending on the work mode and the maintenance mode. Let me
The number of channels is halved to reduce the size and weight of the remote control panel (radio control transmitter) 31 and receiver 32. The remote control means 30 composed of the remote control panel 31, the receiver 32, and the remote control circuit 33 will be described by using a radio control type. However, the present invention is not limited to this. An effect can be obtained.

The control circuit of the self-propelled soil conditioner according to the present invention will be described with reference to FIGS. FIG. 3 is an explanatory diagram of the first embodiment of the remote control circuit. The receiver 32 has first contacts CH1 to fourth contacts CH4 to ON that are turned on in response to ON operations of the first to fourth switches R1 to R4 of the remote control panel 31 shown in FIG.
The contact CH4 is provided. The contact 13a of the operation mode changeover switch 13 is a work mode contact, the contact 13b is a maintenance mode contact, and the contact 13c is a traveling mode (not described) contact.
The coils of the relays RYA to RYD connected in parallel, which constitute the remote control circuit 33A, are connected to the operation mode switch 1
The power supply line Vc is connected in series to a power supply line Vc connected to a power supply unit such as a vehicle-mounted battery via the third contact 13b. Relay R
One end of each of normally closed contacts A1, B1, C1, and D1 of YA to RYD (hereinafter, referred to as b contact) and one end of each of normally open contacts (hereinafter, referred to as a contact) A2, B2, C2, and D2. 34 in parallel. The other ends of the contacts A1 and A2 are connected to one end of a first contact CH1 of the receiver 32, and the other ends of the contacts B1 and B2 are connected to one end of a second contact CH2 of the receiver 32.
And the other end of C2 is connected to one end of a third contact CH3 of the receiver 32, and the other end of the contacts D1 and D2 is connected to one end of a fourth contact CH4 of the receiver 32. The other ends of the contacts CH1 to CH4 of the receiver 32 are grounded. Further, the controller 34 is connected to a solenoid unit of each operation valve of a hydraulic circuit unit that drives each device. Solenoid 2 of first operation valve 22
2a, 22b and solenoids 24a,
24b, and solenoids 26a and 26b of the third operation valve 26
Is connected to the controller.

FIG. 4 is a diagram showing an example of the hydraulic drive circuit 20 of the self-propelled soil conditioner 10 shown in FIG. Here, the first hydraulic motor 23 for driving the improving agent feeder 5 according to the present invention, the second hydraulic motor 25 for driving the scraping rotor 3, and the third hydraulic motor 27 for driving the raw material soil conveyor 6 will be described. I do. Other discharge motors and hydraulic motors for driving the mixer 7 are not directly related to the present invention, and are therefore omitted. The hydraulic pump 21 driven by the engine installed in the engine room 9 has the first operation valve 2
2 is connected to a first hydraulic motor 23 for driving the improver feeder 5 via a second operating valve 24, and is connected to a second hydraulic motor 25 for driving the scraping rotor 3 via a second operating valve 24. It is connected to a third hydraulic motor 27 that drives the raw material soil conveyor 6 via the feeder. Further, the controller 34 controls the first operation valves 22 to of the respective hydraulic motors that drive the respective devices.
It is connected to the solenoid part of the third operation valve 26. Note that the discharge pipe of the hydraulic pump 21 is connected to the safety valve 28 to protect the hydraulic drive circuit 20.

The operation of FIG. 4 will be described. When the solenoid 22a of the first operation valve 22 is excited, the position becomes the a position, and the improving agent feeder 5 rotates forward (rotation in the conveying direction), and the solenoid 22b
Is excited to the position b and the improver feeder 5 is reversed. When both the solenoids 22a and 22b are demagnetized, the position becomes the position c and the improving agent feeder 5 stops. Similarly, when the solenoid 24a of the second operation valve 24 is excited, the position becomes the position a and the scraping rotor 3 rotates forward (rotation in the conveying direction). When the solenoid 24b is excited, the position becomes the position b and the scraping rotor 3 rotates in the reverse direction. , 24b are demagnetized to the position c and the scraping rotor 3 stops. Also, the third operation valve 2
When the solenoid 26a of the solenoid 6 is excited, the raw material soil conveyor 6 comes to the position a and rotates forward (rotation in the conveying direction).
When the magnet 6b is excited, the material soil conveyor 6 comes to the position b and rotates in the reverse direction. When both the solenoids 26a and 26b are demagnetized, the material soil conveyor 6 comes to the position c and stops.

The controller 34 is configured as follows. When an input current flows to the controller 34 via the contacts A1 and CH1, the solenoid 24a of the second operation valve 24
When the input current flows through the contacts B1 and CH2, the solenoids 24a and 24b of the second operation valve 24 and the third operation valve 26 are excited.
Without energizing either of the solenoids 26a and 26b,
When the input current flows through the contacts C1 and CH3, the second
When the solenoid 24b of the operation valve 24 and the solenoid 26b of the third operation valve 26 are excited and an input current flows through the contacts D1 and CH4, a stop signal of all the working machines of the traveling soil improvement machine 10 is output. Further, the controller 34 excites the solenoid 22a of the first operation valve 22 when the input current flows through the contact A2, and excites the solenoid 22b of the first operation valve 22 when the input current flows through the contact B2, When the input current flows through the contact C2, the solenoid 26a of the third operation valve 26 is excited, and when the input current flows through the contact D2, the solenoid 26b of the third operation valve 26 is excited.

Next, the operation of the first embodiment will be described. When the radio control switch 14 is turned on, the receiver 32
The power supply line Vc connected to the power supply unit is turned on, and transmission / reception with the remote control panel 31 becomes possible. When the operation mode changeover switch 13 is switched to the work mode during the soil improvement work, the contact 13a is turned on, and the remote control circuit 33A deactivates the relays RYA to RYD and the b contacts A1, B1, C1, B1.
D1 turns on, and points a2, B2, C2, and D2 turn off. In this state, for example, the first
When the switch R1 is turned on, the first contact CH of the receiver 32
1 is turned on and the input current flows from the controller 34 via the contact A1, the controller 34
And the raw material soil conveyor 6 are controlled to rotate normally. When the second switch R2 of the remote control panel 31 is turned on, the second contact CH2 of the receiver 32 is turned on, and when an input current flows from the controller 34 via the contact B1, the controller 34 causes the scraping rotor 3 and the material The earth conveyor 6 is stopped and controlled.
When the third switch R3 of the remote control panel 31 is turned on, the third contact CH3 of the receiver 32 is turned on and the controller 34 is turned on.
When the input current flows from the contact C1 through the contact C1, the controller 34 controls the reverse rotation of the scraping rotor 3 and the raw material soil conveyor 6. When the fourth switch R4 of the remote control panel 31 is turned on, the fourth contact CH4 of the receiver 32 is turned on, and when an input current flows from the controller 34 via the contact D1, the controller 34 activates the self-propelled soil conditioner 10 Stops driving of all work machines.

Next, at the time of inspection and maintenance, the radio control switch 1
When the operation mode changeover switch 13 is turned on and the operation mode changeover switch 13 is switched to the maintenance mode, the contact 13b is turned on, and the remote control circuit 33A excites the relays RYA to RYD to turn off the b contacts A1, B1, C1, and D1. Contacts A2, B2,
C2 and D2 are turned on. In this state, when the first switch R1 of the remote control panel 31 is turned on, the first contact CH1 of the receiver 32 is turned on, and the controller 34 contacts the contact A2.
, An input current flows, and the controller 34 controls the improving agent feeder 5 to perform normal rotation (rotation in the improving agent supply direction). When the second switch R2 of the remote control panel 31 is turned on, the second contact CH2 of the receiver 32 is turned on, an input current flows from the controller 34 via the contact B2, and the controller 34 controls the reverse rotation of the improving agent feeder 5. When the third switch R3 of the remote control panel 31 is turned on, the third contact C of the receiver 32 is turned on.
When H3 is turned on, an input current flows from the controller 34 via the contact C3, and the controller 34
(Rotation in the direction of conveying the raw material soil). When the fourth switch R4 of the remote control panel 31 is turned on, the fourth contact CH4 of the receiver 32 is turned on, and the controller 34 contacts the contact D2.
, An input current flows, and the controller 34 controls the reverse rotation of the raw material soil conveyor 6. As described above, the remote control panel 3
The functions of the switches R1 to R4 of 1 are switched as shown in the following table between a work mode (a mode for soil improvement work) and a maintenance mode (a mode for cleaning and checking for soil clogging).

[0025]

[Table 1]

In Table 1, the feeder indicates the interlock between the raw material soil conveyor 6 and the scraping rotor 3. In this manner, a function corresponding to eight channels is provided by a four-channel radio control. That is, it is not necessary to equip the radio control transmitters for the work mode and the maintenance mode, respectively.
Instead of adding a channel to the radio control, it is possible to respond by using a relay or the like in the signal input circuit from the receiver, so that the remote control panel 31 can be reduced in size and weight, thereby improving operability and reducing costs. I do.

A second embodiment of the remote control circuit 33 constituting the remote control means 30 will be described with reference to FIGS. The same components as those in the first embodiment shown in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 5, the relay RYE constituting the remote control circuit 33B is connected in series to the power supply line Vc via the contact 13b of the operation mode changeover switch 13. Relay RY constituting remote control circuit 33B
One end of each of the coils a to RYd is connected in parallel, grounded via a contact b1 of the relay RYE, and the other end is connected to the power supply line Vc via the contacts CH1 to CH4 of the receiver 32, respectively. . Also, the remote control circuit 33
One end of each of the coils of relays RYe to RYh constituting B is connected in parallel, grounded via a contact E2 of relay RYE, and the other end is connected to each contact C of receiver 32.
Power supply line V connected to the power supply via H1 to CH4
c. As shown in FIG. 6, each contact A of a contact corresponding to the coil of each relay RYa to RYh of FIG.
One end of each of the terminals 3 to H3 is connected to the controller 34, and the other end is grounded. The hydraulic drive circuit 20 is the same as in FIG.

The controller 34 is configured as follows. A contact A of relay RYa from controller 34
3, the solenoid 24a of the second operating valve 24 and the solenoid 26a of the third operating valve 26 are excited, and when the input current flows through the a contact B3 of the relay RYb, the second operating valve 24 is excited. When neither the solenoids 24a, 24b of the third operating valve 26 nor the solenoids 26a, 26b of the third operating valve 26 are energized and an input current flows through the a contact C3 of the relay RYc, the solenoid 24b of the second operating valve 24 and the The solenoid 26b of the 3-operation valve 26 is excited, and the relay RY
When the input current flows through the d-contact D3, the operation of all the working machines of the self-propelled soil improvement machine 10 is stopped. When an input current flows through the a contact E3, the solenoid 22a of the first operation valve 22 is excited. When an input current flows through the a contact F3, the solenoid 22b of the first operation valve 22 is excited. When the input current flows through G3, the solenoid 26a of the third operation valve 26 is excited, and when the input current flows through the a contact H3, the solenoid 26b of the third operation valve 26 is excited.
To excite.

The operation of FIGS. 5 and 6 will be described. During the soil improvement work, the operation mode changeover switch 13 is switched to the work mode to turn on the contact 13a, and the radio control switch 1 is turned on.
When 4 is turned on, the relay RYE is demagnetized in the remote control circuit 33B, so that the b contact E1 is turned on and the a contact E2 is turned off. For this reason, when the first switch R1 of the remote control panel 31 is turned on, the first contact CH1 of the receiver 32 is turned on, so that the relay RYa is excited and the contact a is turned on, and the input current flows through the contact a. The controller 34 controls the rotation of the scraping rotor 3 and the raw material soil conveyor 6 in the normal direction. When the second switch R2 of the remote control panel 31 is turned on, the receiver 32
When the second contact CH2 is turned on, the relay RYb is excited and the contact b is turned on. When an input current flows through the contact b, the controller 34 controls the scraping rotor 3 and the raw material soil conveyor 6 to stop. When the third switch R3 of the remote control panel 31 is turned on, the third contact CH3 of the receiver 32 is turned on, so that the relay RYc is excited and the contact c is turned on. When an input current flows through the contact c, the controller 34 is turned on. Controls the reverse rotation of the raw material soil conveyor 6 and the scraping rotor 3. When the fourth switch R4 of the remote control panel 31 is turned on,
Since the fourth contact CH4 of the receiver 32 is turned on, the relay RY
When d is excited and the contact d is turned on and an input current flows through the contact d, the controller 34 controls to stop driving all the working machines of the self-propelled soil conditioner 10.

Next, at the time of inspection and maintenance, the mode changeover switch 13 is switched to the maintenance mode to turn on the contact 13b, and when the radio control switch 14 is turned on, the remote control circuit 33B excites the relay RYE and turns off the b contact E1. Then, the a contact E2 turns on. For this reason, the remote control panel 31
When the first switch R1 of the receiver 32 is turned on, the first contact CH1 of the receiver 32 is turned on, the relay RYe is excited, and the contact E3 is turned on. When an input current flows through the contact E3, the controller 34 sets the improving agent feeder. 5 is controlled to rotate in the normal direction (rotation in the improving agent supply direction). When the second switch R2 of the remote control panel 31 is turned on, the second contact CH2 of the receiver 32 is turned on.
Is turned on, the relay RYf is excited to turn on the contact F3, and when an input current flows through the contact F3, the controller 34 controls the reverse rotation of the improving agent feeder 5. When the third switch R3 of the remote control panel 31 is turned on, the receiver 32
When the third contact CH3 is turned on, RYg is excited and the contact G3 is turned on. When an input current flows through the contact G3, the controller 34 controls the raw soil conveyor 6 to rotate forward (rotation in the raw soil transport direction). I do. When the fourth switch R4 of the remote control panel 31 is turned on, the fourth contact CH4 of the receiver 32 is turned on.
Is turned on, the relay RYh is excited, and the contact H3 is turned on. When an input current flows through the contact H3, the controller 34 controls the reverse rotation of the raw material soil conveyor 6.

A third embodiment of the remote control circuit 33 constituting the remote control means 30 will be described with reference to FIG. The same parts as those in the first embodiment shown in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. One end of the coil of the relay RYQ is connected to the power supply line V via the contact 13b of the operation mode changeover switch 13.
c and connected to the controller 34 (maintenance mode signal M), and the other end is grounded. Relays RYS to RY connected in parallel constituting the remote control circuit 33C
One end of each V coil is connected to each contact CH of the receiver 32.
1 to CH4 and the controller 3
4 is connected. The other ends of the coils of the relays RYS to RYV are connected to each other and
The power supply line Vc is connected via the contact Q of the contact. In addition, the contacts S to a of the respective a contacts of the relays RYS to RYV
One end of V is connected to the controller 34, and the other end is grounded. The hydraulic drive circuit 20 is the same as in FIG.

The controller 34 is configured as follows. When the maintenance mode of the operation mode switch 13 is selected and the contact 13b is turned on, the coil of the relay RYQ is excited, and the maintenance mode signal M is input to the controller 34. When the controller 34 receives the maintenance mode signal M, the controller contacts each of the contacts CH1-C of the receiver 32.
Ignore the signal input via H4. In addition, when the maintenance mode signal M is OFF, when the input current flows through the first contact CH1, the controller 34 sets the second operation valve 24
Solenoid 24a and the solenoid 26 of the third operation valve 26
is excited, and the input current flows through the second contact CH2, neither the solenoids 24a, 24b of the second operation valve 24 nor the solenoids 26a, 26b of the third operation valve 26 are energized, When the input current flows through the third contact CH3, the solenoid 24b of the second operation valve 24 and the solenoid 26b of the third operation valve 26 are excited, and when the input current flows through the fourth contact CH4, the self-propelled motor runs. The operation of all working machines of the type soil improvement machine 10 is stopped. When an input current flows through the contact S, the solenoid 22a of the first operation valve 22 is excited, and when an input current flows through the contact T, the first operation valve 2
When the input current flows through the contact U, the solenoid 26a of the third operating valve 26 is excited. When the input current flows through the contact V, the third operating valve 26 is excited.
Of the solenoid 26b is excited.

The operation of FIG. 7 will be described. When the operation mode changeover switch 13 is switched to the work mode and the work mode contact 13a is turned on during the soil improvement work, the remote control circuit 33
In C, the relay RYQ is demagnetized, the contact Q is turned off, and the maintenance mode signal M is turned off. For this reason, when the radio control switch 14 is turned on and the first switch R1 of the remote control panel 31 is turned on, the first contact CH1 of the receiver 32 is turned on and an input current flows from the controller 34 via the first contact CH1. The controller 34 controls the normal rotation of the scraping rotor 3 and the raw material soil conveyor 6. The second of the remote control panel 31
When the switch R2 is turned on, the second contact CH of the receiver 32
2 is turned on, an input current flows from the controller 34 via the second contact CH2, and the controller 34 controls the scraping rotor 3 and the raw material soil conveyor 6 to stop. Remote control panel 3
1 is turned on, the third switch R3 of the receiver 32 is turned on.
The contact CH3 is turned on, and the controller 34 sends the third contact C
The input current flows through H3, and the controller 34 controls the reverse rotation of the scraping rotor 3 and the raw material soil conveyor 6. When the fourth switch R4 of the remote control panel 31 is turned on, the receiver 3
2 is turned on, an input current flows from the controller 34 via the fourth contact CH4, and the controller 3
Reference numeral 4 denotes stop control of driving of all working machines of the self-propelled soil improvement machine 10.

Next, when the operation mode changeover switch 13 is switched to the maintenance mode and the contact 13b is turned on during inspection and maintenance, the relay RYQ of the remote control circuit 33C is excited and the contact Q is turned on. At this time, the maintenance mode signal M is input from the operation mode changeover switch 13 to the controller 34, and the first contact CH1 to the fourth contact CH4 of the receiver 32 are
Signals input through are ignored. When the radio control switch 14 is turned on and the first switch R1 of the remote control panel 31 is turned on, the first contact CH1 of the receiver 32 is turned on, so that the relay RYS is excited and the contact S is turned on. An input current flows through the controller, and the controller 34 controls the improving agent feeder 5 to rotate in the normal direction (rotation in the improving agent supply direction). When the second switch R2 of the remote control panel 31 is turned on, the relay RYT is excited to turn on the contact T because the second contact CH2 of the receiver 32 is turned on, and an input current flows from the controller 34 via the contact T, The controller 34 controls the reverse rotation of the improver feeder 5. When the third switch R3 of the remote control panel 31 is turned on, the relay RYU is excited and the contact U is turned on because the third contact CH3 of the receiver 32 is turned on, and an input current flows from the controller 34 via the contact U, The controller 34 is a raw soil conveyor 6
(Rotation in the direction of conveying the raw material soil). When the fourth switch R4 of the remote control panel 31 is turned on, the relay RYV is excited and the contact V is turned on because the fourth contact CH4 of the receiver 32 is turned on, and an input current flows from the controller 34 via the contact V, The controller 34 is a raw soil conveyor 6
Is controlled in reverse.

As described above, according to the present invention, at the time of inspection and maintenance such as cleaning of each device of the self-propelled soil improvement machine, elimination of clogging, etc., at the side of the device requiring inspection and maintenance, for example, a raw soil hopper or an improved By remotely controlling each device independently at a position where the inside of the medicine hopper can be seen, reciprocating operation between the vehicle-mounted operation panel and each device becomes unnecessary, and inspection and maintenance can be easily performed even by one person. Therefore, inspection and maintenance work efficiency is greatly improved.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a self-propelled soil improvement machine according to the present invention.

FIG. 2 is a view showing an embodiment of a remote control panel according to the present invention, wherein (A) is a main body and (B) is an operation explanatory view.

FIG. 3 is a diagram showing a first embodiment of a remote control circuit according to the present invention.

FIG. 4 is a diagram showing an example of a hydraulic drive circuit according to the present invention.

FIG. 5 is a diagram showing a second embodiment (first part) of the remote control circuit according to the present invention.

FIG. 6 is a diagram showing a second embodiment (second part) of the remote control circuit according to the present invention.

FIG. 7 is a diagram showing a third embodiment of the remote control circuit according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tracked vehicle, 1a ... Body frame, 2 ... Material hopper, 3 ... Scrape rotor, 4 ... Modifier hopper, 5 ... Modifier feeder, 6 ... Material soil conveyor, 7 ... Mixer, 8 ... Boarding Floor, 9 Engine room, 10 Self-propelled soil improvement machine, 11
Discharge conveyor, 12 ... on-board operation panel, 13 ... operation mode changeover switch, 14, radio control switch, 20 ... hydraulic drive circuit, 21 ... hydraulic pump, 22 ... first operation valve, 23 ... first hydraulic motor, 24 ... second Operating valve, 25: second hydraulic motor, 26: third operating valve, 27: third hydraulic motor, 30 ...
Remote control means, 31 Remote control panel, 32 Receiver, 3
3, 33A, 33B, 33C: remote control circuit, 34: controller, R1: first switch, R2: second switch, R3: third switch, R4: fourth switch.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D040 AB07 CD07 EB04 4D067 DD04 DD06 GA03 GA20 GB03 4G036 AC52 4G037 AA06 AA11 DA30 EA03 4G078 AA02 AB20 BA01 BA09 CA12 DA26 EA20

Claims (5)

[Claims] 1. A raw material soil conveyer that conveys raw material soil of a raw material soil hopper, an improver feeder that supplies an improver of an improver hopper, and a raw material soil conveyed by the raw material soil conveyor and supplied from a improver feeder. In a method of operating a self-propelled soil conditioner equipped with a mixer that disintegrates and mixes the improver to form improved soil on the vehicle body, when checking and servicing each device, each device can be used alone at the required location. An operation method of a self-propelled soil improvement machine characterized by being operated remotely. 2. The method for operating a self-propelled soil improvement machine according to claim 1, wherein the remote operation performed independently is performed on a raw material soil conveyor.
A method for operating a self-propelled soil improvement machine, wherein at least one of forward rotation, reverse rotation and reverse rotation of the improver feeder (5) is performed. 3. A feed soil conveyer for feeding feed soil of a feed soil hopper, an feed feeder for feeding the feed improver of the feed hopper, and a feed soil and feed supplied from feed feed on the feed soil conveyor. A self-propelled soil conditioner equipped on the body with a mixer that disintegrates and mixes the improver to form improved soil.Each device can be remotely operated independently at the points required for inspection and maintenance of each device. A self-propelled soil improvement machine comprising a remote control means (30) for performing the operation. 4. The self-propelled soil improvement machine according to claim 3, wherein the operation mode switching means switches between a maintenance mode in which each device can be inspected and maintained and a work mode in which each device can perform soil improvement work. (13) A self-propelled soil improvement machine characterized in that the remote control means (30) can be remotely controlled between a maintenance mode and a work mode. 5. The self-propelled soil improvement machine according to claim 3, wherein the remote control means (30) transmits and receives signals by radio control.