JPS63247203A - Garbage scraping-out controller for garbage wagon - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a garbage removal control device for a garbage collection vehicle.

(Prior art) Conventionally, a garbage disposal box equipped with a loading panel at the rear opening of the garbage storage box is connected in a tiltable manner, and after the garbage disposal box is tilted,
Japanese Patent Publication No. 58-10322 discloses a device in which the loading panel is inverted so that the garbage caught between the tip of the loading panel and the bottom of the garbage dumping box is discharged by gravity.

(Problem to be Solved by the Invention) However, in such a garbage collection vehicle, after the garbage input box is opened, the loading panel is inverted to open the opening, but the bottom of the garbage input box cannot be opened. The remaining garbage will not fall down reliably, and in that case, the garbage disposal box will have to be closed, the garbage will be loaded into the garbage storage box using the loading panel, and the discharge operation will have to be carried out again. It was extremely complicated.

The present invention has been made in view of the above points, and an object thereof is to provide a garbage collection vehicle in which the garbage processing device can be operated reliably for only one cycle even when the garbage input box is tilted.

(Means for Solving the Problems) The present invention provides a garbage disposal device that includes a garbage storage box mounted on a vehicle body, and a push plate and a rotary plate connected to the rear opening of the garbage storage box. In the garbage collection vehicle, the garbage collection vehicle is comprised of a garbage input box equipped with a garbage input box, and a lifting cylinder for tilting the garbage input box, and the garbage processing device is controlled via an electro-hydraulic control device, the electric-hydraulic control device The system includes a loading switch and a scraping switch that start the garbage processing equipment, an electric contact that detects the rocking limit position of the pushing plate, and a scraping stop position of the rotary plate, with slightly different operating timings. At least two electrical contacts are provided, and the garbage disposal device is started through the loading switch when the garbage input box is connected, and through the scraping switch when the garbage input box is tilted, and the scraping switch When the dust treatment apparatus is operated, one cycle of operation of the dust treatment apparatus is controlled to be stopped via one of the electrical contacts that detects the scraping stop position of the rotary plate.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.
Reference numeral 1 denotes a garbage collection vehicle, in which a garbage storage box 3 is placed on a vehicle frame 2, and the garbage storage box 3 is pivoted by a dump cylinder 4 installed between the vehicle frame 2 and the garbage storage box 3. It can be tilted freely around the part.

A garbage input box 7 is connected to the rear opening 3a of the garbage storage box 3, and is connected to the garbage input box 7, which is pivotally mounted 6 above the rear opening 3a. 7
In addition to being able to open and close as appropriate around the pivot 6 by an elevating cylinder 14 installed between the container and the container, an input port 8 is opened at the rear thereof, and a garbage processing device 9 is installed inside the container. .

The garbage processing device 9 includes a pushing plate 10, a rotating plate 11,
It consists of a push cylinder 12, which is a hydraulic actuator for driving them, and a hydraulic motor 13 (see Fig. 2), and as is well known in the art, the garbage input box 7 is stored by the cooperative action of the push plate 10 and the rotary plate 11. The garbage dumped in the section 18 is loaded into the garbage storage box 3.

On the other hand, a lashing cylinder 15 whose one end is pivotally supported is disposed at the rear of the rear surface of the garbage storage box 3, and the other end is connected to a lashing mold 16 which is pivotally supported at the bottom of the garbage storage box 3, and is normally secured. A lashing mold 16 is engaged with a U port h17 fixed to the front surface of the garbage input box 7 via the cylinder 15, and the garbage input box 7 is secured to the garbage storage box 3.

Next, the hydraulic circuit will be explained with reference to FIG.

P is the hydraulic pump, T is the oil reservoir, ■1 is the electromagnetic control valve that controls the dump cylinder 4, v2 is the push cylinder 1
2, v3 is an electromagnetic control valve that controls the hydraulic motor 13, v4 is an electromagnetic control valve that controls the lifting cylinder 14 and the securing cylinder 15, and these electromagnetic control valves Vl, V2, V3. V4 is solenoid S for spool operation.

Lc, 5OLd, 5OLe, 5OLf, SOL
g.

It is equipped with 5OLh, 5OLa, and 5OLj.

The electromagnetic control valves Vl, V2. V3. Among V4, the aforementioned electromagnetic control valves Vl, V2. V3 is arranged in series with the discharge pipe of the hydraulic pump P, while the electromagnetic control valve Vl
, V2. V3 is arranged in parallel with electromagnetic control valve V4.

V5. V6 is an electromagnetic on-off valve normally energized to a position that prevents contraction of the lifting cylinder 14 and allows expansion of the lifting cylinder 14, and spool operating solenoids 5OLk, SQ
It is equipped with L l.

Next, the electric circuit will be explained with reference to FIGS. 3 and 4.

B is a power source such as a battery, BZI, BZ2 is a buzzer,
SWl is a selection switch for selecting loading or discharging work, SW2 is a stop switch for loading work provided on the input rotary pull, SW3 is a start switch for loading work, S
W4, SWI 1 is a stop switch during loading operation placed on the left and right sides of the input port 8 of the garbage input box 7, SW5 is a buzzer B
ZI communication switch, SW6 is a reversing switch that independently reverses the rotary plate 11, SW7 is a push switch that independently pushes the push plate 10, SW8 is a scraping switch that starts the garbage processing device 9 when discharging garbage, SW9 5WIO is a dump switch that causes the garbage storage box 2 to tilt and operate; 5Wll is an open/close switch that opens and closes the garbage input box 7; SWI 2 , SWI 3 is a safety switch, 5W1, that disables evacuation work from the driver's seat.
Reference numeral 4 denotes a reversing switch for independently reversing the push plate 10.

Among these switch groups, the stop switch SW2 is provided at the input rotary pull, and the start switch SW3, stop switch SW4, SWI1, communication switch SW5, reverse switch SW6, push switch SW7, and reverse switch SWI4 are installed at the input rotary pull. Arranged near the port 8, there are a selection switch SWI, an open/close switch 5W11, a type switch 5WIO1, an inlet switch SW8, and a stop switch S.
W9 is located inside the driver's seat and is a safety switch SWI 2.
, SWI 3 is provided at the rear of the garbage storage box 3.

Next, LSI is an electrical contact that operates at the forward limit position of the pushing plate 10, LS2 is an electrical contact that operates at the backward limit position of the pushing plate 10, and LS3a and LS3b are electrical contacts that operate when the rotating plate 11 is at a predetermined angle from its lifting stop position. LS4 is an electrical contact that operates continuously while the garbage storage box 3 is in the running position (clockwise direction in the drawing);
S5 is an electric contact that operates when the garbage input box 7 is tilted at a predetermined angle, LS6 is an electric contact that operates when the garbage input box 7 is opened, and LS7 is an electric contact that operates when a power extraction device (not shown) is operated. LS8LS9 are electrical contacts that operate when a safety rod (not shown) is set in the working position.

R1, R2, R3, R4, R5, R6, R7゜R8, R
9 is a relay with contacts rl, r2 . r3゜r4. r5. r
6. r7. r8. It is equipped with r9.

Further, regarding the electrical contacts LS3a and LS3b that detect the scraping stop position of the rotary plate 11 described above, the electrical contact LS3b is arranged to be connected and disconnected slightly earlier than the electrical contact LS3a by a cam.

Next, to explain the operation, in the push-in completed state shown in FIG.
has been switched to the lower position in FIG.

First, when a power take-off device (not shown) is operated, electric contact LS7 is closed and relay R7 is energized.

Excitation of relay R7 continues to energize the subsequent circuits via its a contact r7.

Here, after switching the selection switch SWl to the upper position, dumping the garbage into the garbage disposal box 7 from the input port 8 and operating the starting switch SW3 to suppress, current flows to the relay R1, and its a contact r1 and b contact Relay R1 is self-held via r4 and b contacts r6.

The current also flows to relay R5 via the current contact LSI, and energizes the solenoid SOLg via its a contact r5.
At this time, since the electrical contact LS3a has been switched downward, the relay R5 is self-held via the a contact r5.

As a result, the electromagnetic control valve v3 is switched to the upper position, the hydraulic upper motor 13 is activated, and the rotary plate 11 starts rotating normally.

When this rotary plate 11 rotates through a predetermined angle, electrical contact LS3
Since a returns upward, the current flows through electrical contacts LS3a, b
It flows to relay R3 via contact r4, and flows to relay R2 via electrical contact LS2.

Therefore, the flow flows to the solenoid SOLg via the a contact r3 to continue the forward rotation of the rotary plate 11, and at the same time, the flow flows to the solenoid 5OLf via the a contact r2 to switch the electromagnetic control valve V2 to the lower position and push the push cylinder 12. is operated to contract, and the push plate 10 is operated to retreat (reverse).

At this time, by reversing the push plate 10, the electrical contact LSI
Since the current is switched upward, the current supply to the relay R5 is cut off together with the upward switching of the electrical contact L33a.

Then, when the push plate 10 reaches the retraction limit position, the electric contact LS2 is switched to cut off the power to the relay R2,
The a contact r2 is opened, and the excitation of the solenoid 5OLf is cut off.

Therefore, the electromagnetic control valve v2 returns to the neutral position and stops the reversing operation of the pusher plate IO.

However, since the relay R3 continues to be energized, the forward rotation of the rotary plate 11 continues, and the garbage dumped in the storage section 18 of the garbage input box 7 is scraped up and
When it rotates and reaches the scraping stop position, the electric contact LS3a is switched downward.

As a result, the relay R3 is de-energized, so the electromagnetic control valve v3 returns to the neutral position, and the forward rotation of the rotary plate 11 is stopped.

At the same time, it flows to relay R4 via electrical contacts LSI, LS3a, and b contact r5, and self-holds relay R4 via its a contact r4, and flows to solenoid 5OLe, switching electromagnetic control valve v2 to the upper position.

Therefore, the pushing cylinder 12 is operated to extend, and the pushing plate 10
moves forward (pushing) to push the garbage on the rotary plate 11 into the garbage storage box 3.

After this, when the push plate 10 reaches the forward limit position, the electric contact LSI switches downward and the current to the relay R'1 is cut off, thereby opening the a contact r1 and cutting off the subsequent current flow. As a result, the electromagnetic control valve V2 is returned to the neutral position and the pushing operation of the pushing plate 10 is stopped. Here, one cycle of garbage loading by the garbage processing device 9 is completed.

Once the garbage has been loaded into the garbage storage box 3 as described above, the vehicle travels to a designated treatment site and discharges the garbage there.

For this discharge, first, the selection switch SWl is placed in the lower position, and the opening/closing switch SWI1 is placed in the upper position.

As a result, the current flows to the buzzer BZ2 to issue an alarm, and also directly to the solenoid 5OLa and the reversing switch 5W.
14, flows to solenoid 5OLf via b contact r2,
The electromagnetic control valve V2 is switched to the lower position, and the electromagnetic control valve v4 is switched to the upper position.

In this case, the pushing cylinder 12, which has a light load, first operates to contract, and the pushing plate 10 retreats.

When the pushing cylinder 12 is fully compressed and the pushing plate 10 reaches the retraction limit position, the lashing cylinder 15 with a light load is then extended, and the lashing claw 16 rotates clockwise to move the U port 1.
Withdrawal from 7. Therefore, the binding of the garbage input box 7 to the garbage storage box 3 is released.

When all the lashing cylinders 15 are closed, the pressure oil is turned off by the electromagnetic on-off valve V5.
．． As a result of being supplied to the piston back pressure side oil chamber of the lifting cylinder 14 through V6 and extending the lifting cylinder 14, the pivot 6
The garbage input box 7 is opened to the garbage storage box 3 centering on the part.

Then, when the garbage input box 7 opens at a certain angle, the electrical contact L
Since S5 is switched, after this dump switch swto
When the solenoid 5OLc is switched to the upper position, a current flows through the solenoid 5OLc, the electromagnetic control valve V1 is switched to the upper position, the dump cylinder 4 is extended, the garbage storage box 2 is tilted, and the garbage is discharged.

After the dust has been discharged, switch the dump switch 5WlO to the downward position to energize the solenoid 5QLd.
Since the electromagnetic control valve vl is switched to the lower position, the dump cylinder 4 is contracted and the garbage storage box 3 is laid down.

When the garbage storage box 3 returns to the traveling position, the electric contact LS4 is switched. And after that, open/close switch 5W1
1 to the lower position, the current flows to the buzzer BZ2 and sounds as described above, and at the same time flows directly to the solenoids 5OLk and 5QLl, causing the electromagnetic on-off valves V5 and V
B to the lower position (in this case, the garbage input box 7 is tilted, and the closing of the electrical contact LS6 causes the relay R to
8 is excited. Therefore, its b contact r8
is open and energization of solenoid SQL j is blocked).

As a result, the oil chamber on the piston back pressure side of the lifting cylinder 14 is operated by the electromagnetic on-off valves V5 and V6, and the electromagnetic control valve v4 in the middle normal position.
Since the lift cylinder 14 is connected to the oil reservoir T through the cylinder 1, the lifting cylinder 14 is contracted by the weight of the garbage input box 7, and the garbage input box 7 is closed.

In this case, the pressure oil from the hydraulic pump P is sent to the lifting cylinder 14.
The oil returns to the oil reservoir T via the electromagnetic control valves v2 to V4 without acting on the oil.

When the garbage input box 7 reaches the connected state with the garbage storage box 3, the electric contact LS6 is opened and the excitation of the relay R8 is cut off. Then, the b contact r8 selection switch SWI,
At the same time, the solenoid SQL j is energized via the a contact r1, and the solenoid 5O is energized via the b contact r8 and the diode.
In order to switch the electromagnetic control valves ■1 and v4 to the lower position by energizing Ld, the pressure oil from the hydraulic pump P is communicated with the piston back pressure side oil chamber of the lashing cylinder 15 and the piston side sleeve chamber of the dump cylinder 4. .

By the way, since the dump cylinder 4 has already fully contracted with the garbage storage box 3 laid down, the pressure oil blocked by the dump cylinder 4 causes the lashing cylinder 15 to contract and the lashing air 16 to be in the connected state. U-bolt 17 of a certain garbage disposal box 7
to engage.

In this way, once the vehicle returns to the running state, it is possible to start the garbage collection work again.

Incidentally, in order to tilt the garbage input box 7 for maintenance, inspection, etc., the selection switch SWI is placed in the lower position and the opening/closing switch SW9 is placed in the upper position, respectively, in the same manner as in the operation during the discharge operation described above.

Then, as described above, the buzzer BZ2 issues an alarm, and the pushing cylinder 12 is sequentially reduced and the lashing cylinder 15 is
, and the elevating cylinder 14 is extended. As a result, the pushing plate 10 is retreated, the lashing wind 16 is rotated, and the garbage input box 7 is tilted in sequence.

When the garbage input box 7 is opened at a certain angle, the electric contact LS5 is switched and the garbage input box 7 is opened.

At this time, if at least one of the safety switches SWI 2 and SWI 3 is switched to the lower position, the operator in the driver's seat can accidentally or unconsciously operate the open/close switch S.
WI 1 to closed side or dump switch 5WIO
Even if the switch is turned to the lower side and the current is turned on, the current will not reach the open/close switch 5.
It is safe because it does not flow to WII and dump switch 5W10.

Then, by switching the safety switch 5W12 or 5W13, the pilot lamp PL2 located in the driver's seat
lights up to notify the operator in the driver's seat.

Further, when the garbage input box 7 is tilted, the electric contact LS6 is brought into contact, and as a result, the relay R8 is energized.

Then, the contact r8, the electrical contact LS8 or LS9
via the buzzer BZ2, which notifies the operator that the garbage disposal box 7 is being tilted.

This alarm continues until electrical contacts LS8 and LS9 are opened.

That is, the sound continues until the right and left safety rods (not shown) are set to the working position (extended position for preventing the garbage disposal box 7 from falling).

In this way, the operator performs inspection work with the safety rod set.

By the way, when the dust accumulated in the storage section 18 cannot be discharged due to the tilting of the dust input box 7 during the dust discharge operation, the scraping switch SW8 may be operated.

That is, when the scraping switch SW8 is pushed to the lower position, the relay R6 is energized, and as a result, the relay R6 is self-held via the a contact r6 and the b contact r3.

At the same time, current flows through the electrical contacts LSI, LS3a, and b contact r5 to relay R4, which self-holds relay R4 through its a contact r4 and solenoid 5OLe.
and switches the solenoid control valve 2 to the upper position.

Therefore, the pushing cylinder 12 is operated to extend, and the pushing plate 10
operates forward.

When the pushing plate 10 reaches the forward limit position, the rotating plate 11 rotates forward in the same way as described above, and as the rotating plate 11 rotates normally, the pushing plate 1
Inversion of 0 is performed sequentially.

Then, the push plate 11 reaches the retraction limit position and stops, and then the rotary plate 11 scrapes up the garbage remaining in the garbage input box 7, and when it rotates once and reaches the scraping stop position, the electric contact L
S3b switches before electrical contact LS3a.

By the way, since the relay R3 is energized during normal rotation of the rotary plate 11, its b contact r3 is open. Now that the electrical contact LS3b is opened, the current supply to the relay R6, which was self-held by the contact operation of the scraping switch SW8, is cut off.

As a result, the a-contact r6 is opened and the current flow is prevented from then on, so that the forward rotation of the rotary plate 11 is stopped and one cycle of operation of the garbage processing device 9 by the scraping switch SW8 is surely completed. .

On the other hand, when the garbage processing device 9 is performing scraping work by operating the scraping switch SW8, the dump switch SW8
When the garbage storage box 3 is tilted via to, the electrical contact LS4 is opened.

When the electric contact LS4 is opened, the excitation to the relay R6 that controls the scraping operation is cut off, and as a result, the scraping operation by the garbage processing device 9 is stopped.

That is, when the garbage storage box 3 is in the tilted state, the scraping switch S is
The scraping operation of the garbage processing device 9 using W8 is not possible.

This is because when the garbage storage box 3 is tilted after the garbage input box 7 is opened, the garbage input box 7 relatively lowers and approaches the ground, and as a result, a worker engaged in inspection etc. operates the operation. This is because the garbage disposal device 9 does not pose any danger.

(Effects of the Invention) As described above, in the present invention, even if the garbage input box is in a tilted state, by operating the scraping switch, the garbage processing device consisting of the rotary plate and the push plate can be activated for only one cycle. This allows the dust remaining at the bottom of the input box to be completely discharged, greatly contributing to cleaning work.

Furthermore, since the operation of the garbage disposal device when discharging garbage using the scraping switch is controlled by an electrical contact that is different from the electrical contact that regulates one cycle operation when loading garbage, the garbage treatment device reliably operates in one cycle. It can be terminated by activation.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is a side view of the rear part of the garbage collection vehicle, FIG. 2 is a hydraulic circuit diagram, and FIG.
) (b) is an electrical circuit diagram, and FIG. 4 is a layout diagram of electrical contacts and each switch. 3 fists...garbage storage box, 7.φ.garbage input box, 9...garbage processing device, 10...pushing plate, 11...rotating plate, 1
2... Push cylinder, 13... Hydraulic motor, 14...
... Lifting cylinder, Vl. V2. V3. V4 Φ fist solenoid control valve.

Claims (1)

[Claims] (1) A garbage storage box mounted on the vehicle body, a garbage input box connected to the rear opening of the garbage storage box and equipped with a garbage processing device consisting of a push plate and a rotary plate inside, and the garbage input box. In a garbage collection vehicle comprising a lifting cylinder for tilting a box and controlling the garbage processing device via an electro-hydraulic control device, the electro-hydraulic control device includes:
A loading switch and a scraping switch that start the garbage processing device, an electric contact that detects the rocking limit position of the pushing plate,
The scraping stop position of the rotary plate is detected, and at least two electrical contacts with slightly different activation timings are installed. Each of the garbage treatment devices is started through a switch, and when the garbage treatment device is activated by the scraping switch, one cycle of the garbage treatment device is activated through one electric contact that detects the scraping stop position of the rotary plate. A garbage removal control device for a garbage collection vehicle, characterized in that the device is configured to control the stoppage of the garbage collection vehicle.