JPS62175303A - Operation 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 (Field of Industrial Application) The present invention relates to an operation control device for a garbage collection vehicle.

(Prior Art) Generally, a garbage collection vehicle is known in which a garbage input box, which is equipped with a garbage loading device inside, is connected in a tiltable manner to a rear opening of the garbage storage box.

In such a garbage collection vehicle, the above-mentioned garbage pushing device is configured to be operable by a start switch provided on the garbage input box only when the garbage input box is connected to the garbage storage box.

(Problems to be Solved by the Present Invention) By the way, the start switch of the garbage pushing device is cut off from the power supply by switching the changeover switch to the discharge operation side, and even if the above-mentioned start switch is operated during garbage discharge, The garbage pushing device was inoperable.

Therefore, even if you try to scrape out the garbage remaining in the storage chamber of the garbage input box that is in the tilted state when discharging garbage, it will not be possible to scrape out the garbage, so after returning the YA garbage input box to the connected state, the garbage pushing device will be activated The waste had to be collected in a garbage storage box and then discharged again, making the work complicated.

The present invention has been made in view of the above-mentioned points, and provides an operation control device for a garbage collection vehicle that is capable of operating a garbage pushing device even when discharging garbage.

(Means for Solving the Problems) The present invention includes a garbage storage box mounted on a vehicle frame, and a garbage inlet that is connected to the rear opening of the garbage storage box so as to be tiltable and is equipped with a garbage pushing device inside. The box is equipped with a plurality of hydraulic actuators that actuate the garbage pushing device, and a control device that sequentially operates the plurality of hydraulic actuators, and the control device has contacts corresponding to garbage loading or discharging operations. a start switch that is connected to the loading operation side of the changeover switch and operates the garbage pushing device; and a scraping switch that is connected to the discharge operation side of the 1111 changeover switch that operates the garbage pushing device. In addition, the starting switch is disposed in the garbage input box, and the scraping switch is disposed in the driver's cab of the garbage collection vehicle.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. An open garbage input box 2 is connected to its upper end by a pivot 4, and the garbage input box 2 can be tilted relative to the garbage storage box 1 via a tilting cylinder (not shown).

The garbage input box 2 has an input port 5 opened at the lower part of the back surface thereof, and a garbage storage chamber 6 formed in the lower part thereof.

Inside the garbage input box 2, there is a garbage pushing device A that compresses and crushes the garbage and pushes it into the garbage storage box l.
is equipped with.

The configuration of this garbage pushing device A will be explained below.
Guide groove members 7 made of groove-shaped steel are installed on both side walls of the garbage disposal box 2 to serve as reinforcing frames and are inclined from the front upper end to the rear lower part, and the above-mentioned pivot 4 is attached to the upper end of the guide groove members 7. It is pivoted.

On the other hand, a sliding plate 8 extending over its entire width is accommodated in the garbage input box 2, and guide rollers 9 are pivotally attached to the upper and lower sides of both side edges of the sliding plate 8. It is fitted slidably along the inner wall of the groove member 7.

A pivot shaft 1 is attached to the upper rear surface of the sliding plate 8 via a bracket.
6 is pivotally supported, and this pivot 16 is connected to the guide groove member 7.
It extends along the back surface and extends beyond the notch 10 formed in the side wall of the garbage disposal box 2 so as to match the sliding distance of the sliding plate 8 from the inside of the disposal box 2.

A first telescopic cylinder 11 provided on the outside of the garbage input box 2 is installed between the pivot shaft 16 protruding outward beyond the side wall of the garbage input box 2 and the lower part of the garbage input box 2 in the direction of inclination of the guide groove member 7. connected along and offset above the
The sliding plate 8 is moved by the telescopic operation of the first telescopic cylinder 11.
can be slid back and forth along the guide groove member 7.

Note that one end of a second telescopic cylinder 15, which will be described later, is also pivotally connected to a pivot 16 that is pivotally connected to the upper rear surface of the sliding plate 8.

Further, at the lower end of the sliding plate 8, a pushing plate 12 extending over the entire width of the garbage input box 2 is pivoted 13 so as to be swingable back and forth, and the tip of the pushing plate 12 is bent forward. There is.

A second telescoping cylinder 15 is connected between the protruding piece 14 protruding from the back surface of the pushing plate 12 and the inner side of a pivot 16 pivotally attached to the upper part of the back surface of the sliding plate 8. The pushing plate 12 can be swung back and forth around the shaft support 13 by the expansion and contraction operation.

Furthermore, a discharge plate 17 that can be moved forward and backward by a discharge cylinder (not shown) is disposed within the garbage storage box l.

Next, the hydraulic circuit will be explained with reference to FIG. 2. P is the hydraulic pump, T is the oil reservoir, Vl is the electromagnetic control valve of the first telescopic cylinder 11, v2 is the electromagnetic control valve of the second telescopic cylinder 15, and the electromagnetic control valve is Valve vl is solenoid 5OLc
, 5OLd, and the solenoid control valve v2 is the solenoid 5OLa.
, 5OLb, respectively.

Further, to explain the electric circuit diagram of the present invention with reference to FIG. 3, SWl is a changeover switch for selecting garbage loading work or garbage discharging work, SW2 is a start switch for garbage pushing device A, and SW3 is a garbage pushing device when discharging garbage. SW4 is a tilting switch that tilts and moves the garbage input box 2 upside down; SW5 is a discharge switch that advances and retreats the discharge plate 17; SW6 is a single cycle operation or continuous cycle operation of the garbage pushing device A. The selection switches SW7 and SW8 are stop switches that stop the operation of the garbage pushing device A.

Among these various switches, on the driver's cab side of the garbage collection vehicle are a changeover switch SWt, a scraping switch SW3, a tilting switch SW4, an ejection switch SW5, a stop F switch SW
On the other hand, on the garbage input box 2 side, in addition to a start switch SW2, a selection switch SW6, and a stop switch SW7, there are also a sliding plate 8 and a pushing plate 12 that constitute the garbage pushing device A, although not shown in detail. A single operating switch is provided.

Further, LSI is an electric contact that detects the upper limit position of the sliding plate 8, LS2 is an electric contact that detects the lower limit position of the sliding plate 8, and LS4 is an electric contact that detects the forward swing limit position of the pushing plate 12. , LS3 is an electrical contact that detects the backward swing limit position, and LS5 is an electrical contact that detects that the garbage input box 2 is tilted at a certain angle or more with respect to the garbage storage box l. It consists of a limit switch.

Among these electrical contacts (limit switches), LSI,
The LS2 is disposed between the garbage input box 2 and the sliding plate 8, and a limit switch is disposed on one side thereof, and an operating body of the limit switch is disposed on the other side, and switching control is performed.

In addition, limit switch LS3. LS4 is disposed on the back surface of the sliding plate 8, and is configured to guide the back and forth swinging of the push plate 12 through a link mechanism to control switching of its contacts.

Further, the LS5 is disposed in the garbage input box 2, and is switched and operated by a cam fixed to the pivot shaft 4.

Also, CRI, CR2, CR3, CR4, CR5, CR
6 is a relay, which has contacts cr1, cr2 . c.
r3. cr4. cr5. It has cr6.

Next, the operation process of the embodiment of the present invention will be explained with reference to FIGS. 1a to 1d. The solid line a in FIG. The first and second telescoping cylinders 11.15 are both extended, the sliding plate 8 is in the ascending position and actuating the limit switch LSI, and the pushing plate 12 is in the forward swinging position and actuating the limit switch LS4. It's working.

In this state, pour the garbage from the input port 5 into the storage chamber 6 of the garbage input box 2.
When the changeover switch SWI is turned to the t position shown in Fig. 3 and the switch SW2 is activated, the relays CRI and CR2 are self-held, and the solenoid 5OLb is energized. Switch the solenoid control valve V2 to the left position.

As a result, only the second telescopic cylinder 15 is retracted from the pushing completed state shown by the solid line a in FIG.

When the push plate 12 reaches the limit reversal position, the limit switch L
S3 is brought into contact, causing relay CR3 to self-hold and at the same time releasing the self-holding of relay CR2.

Therefore, at the same time the solenoid control valve v2 is returned to the neutral position, the solenoid 5OLd is energized to switch the solenoid control valve Vl to the left position.

As a result, the first telescopic cylinder 11 is retracted from the inverted state shown by the dashed line in FIG. descends in parallel while maintaining a nearly horizontal position (jrf),
The garbage can be crushed between the pushing plate 12 and the circular arc surface of the bottom of the input box 2.

When the push plate 12 reaches the lowering limit position, the limit switch L
Since S2 is activated, the self-holding of the relay CR3 is released at the same time as the relay CR4 is self-holding.

Therefore, current is applied to the solenoid 5OLa, and at the same time, the solenoid control valve V1 is returned to the neutral position, and the solenoid control valve v2 is switched to the right position.

As a result, the second telescopic cylinder 15 extends from the state where the crushing of the garbage is completed as shown by the dashed line C in FIG. rotates clockwise until it becomes almost vertical and enters the compression stroke.
2 and the flat surface of the bottom of the input box 2.

At that time, due to the action of the link mechanism, the limit switch LS
4 is switched, and at the same time, relay CR5 becomes self-holding, the self-holding of relay CR4 is released.

For this reason, after returning the solenoid control valve v2 to the neutral position, the solenoid 5OLc is energized, thereby switching the solenoid control valve Vl to the right position.

As a result, the first telescopic cylinder 11 expands from the compression end state shown in button vid in Figure 1, and the pushing plate 12 rises in parallel while maintaining its front surface in a substantially vertical state, and is compressed in the previous stroke. Garbage can be pushed into the garbage storage box l.

When the above-mentioned pushing process is completed, the state returns to the state shown by the solid line a in FIG. 1, and one cycle of reversing, crushing, compression, and pushing is completed.

Note that when the selection switch SW6 is in the l-cycle operating position shown in FIG. 3, the b contact CR5 is released by the operation of the relay CR5 during the push-in stroke, and the limit switch LSI is switched when the push-in stroke is completed. The self-holding of the relay CRI is released and the operation of the dust pushing device A is stopped.

On the other hand, the selection switch SW6 is in the lower position in FIG.

That is, when in the continuous cycle operating position, the self-holding of the relay CRI is continued via the selection switch SW6, and the self-holding of the relay CRI is maintained by the stop switch S.
Unless canceled by W7 or the like, the garbage collection operation by the garbage pushing device A will continue.

When the garbage storage box 1 becomes full in this manner, the garbage discharge operation begins.

That is, after moving the garbage collection vehicle to a garbage disposal site, etc., the changeover switch SWl is switched to the downward position, and the tilting switch SW4 and the discharge switch SW5 are sequentially operated to tilt the garbage input box 2 and release the discharge plate 17. can be moved rearward and the garbage in the garbage storage box l can be discharged to the treatment plant.

By the way, during the above-mentioned discharge operation, the tilt switch S
In the opening operation of the garbage disposal box W4, a current is supplied to the solenoid 5QLb through the relay contact cr2, so that the second telescopic cylinder 15 is first contracted.

That is, first, the push plate 12 is reversed in the direction away from the garbage, thereby removing the reaction force from the garbage, and the push plate 12 reaches the reversal limit position, causing the limit switch LS3 to move.Furthermore, the tilting switch By continuing to operate SW4, a tilting cylinder (not shown) is then extended to release the lashing device, and then the garbage input box 2 is tilted at a certain angle with respect to the garbage storage box 1.

When the garbage input box 2 is tilted at a set angle with respect to the garbage storage box l, the limit switch LS5 is switched by a dog or the like (not shown).

Since the discharging operation is started by reversing the pushing plate 12 in this way, it is easy to release the binding of the garbage input box 2 to the garbage storage box 2, and the garbage can be removed between the garbage pushing device and the garbage input box. This is to prevent the dust from getting caught, but if some of the dust remains in the dust throwing box 2, the scraping switch SW3 can be operated.

That is, when the garbage disposal box 2 is in the tilted state, the push plate 12 is in the inverted state, the limit switch LS3 is switched, and assuming that the push plate 12 is in the raised position, the limit switch LSI is It has been switched.

Therefore, when the scraping switch SW3 is operated, the relay CR6 is self-held, and at the same time, current flows through the limit switch LS3 to the relay CR3 and energizes the solenoid 5OLd.

As a result, the contraction operation of the first telescopic cylinder 11, or in other words, the lowering of the pushing plate 12 is started.

Hereinafter, as described above, the crushing, compression, and pushing operations of the garbage pushing device A are performed sequentially, and the relay contact cr
2 is released and the limit switch LS3 is further switched, thereby scraping out the dust until the self-holding of the relay CR6 is released.

Although the garbage pushing device of this embodiment has been shown in which the pushing plate slides up and down and at the same time swings back and forth, it is not limited to this embodiment.

(Effects of the Invention) As described above, in the present invention, when the scraping switch is operated even when discharging garbage, the garbage pushing device can be operated, so when garbage remains in the storage chamber of the garbage input box, the garbage can be removed. The garbage can be reliably discharged, and the discharge work can be carried out smoothly.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is a cross-sectional side view showing a garbage collection vehicle of the device of the present invention, FIG. 2 is a hydraulic circuit diagram, FIG. 3 is an electric circuit diagram, and FIG. FIG. 4 is a side view showing the mounting positions of electrical contacts and switches shown in the electrical circuit diagram of FIG. 3;

Claims (1)

[Claims] (1) In a garbage collection vehicle comprising a garbage storage box mounted on a vehicle frame and a garbage input box that is tiltably connected to the rear opening of the garbage storage box and is equipped with a garbage pushing device inside, A plurality of hydraulic actuators that actuate the pushing device and a control device that sequentially actuate the plurality of hydraulic actuators are provided, and the control device includes a changeover switch that changes a contact point in response to a garbage loading operation or a garbage discharge operation, and a control device that sequentially operates the plurality of hydraulic actuators. A start switch that is connected to the loading operation side of the changeover switch and operates the garbage pushing device; and a scraping switch that is connected to the discharge operation side of the changeover switch and operates the garbage pushing device; is installed in the garbage input box, and the scraping switch is installed in the driver's cab of the garbage collection vehicle, so that the garbage pushing device can be selectively activated from the garbage input box or the driver's seat when loading or discharging garbage. An operation control device for a garbage collection vehicle, characterized in that it is operable.