JP3253922B2 - Rotary plate drive unit and rotary plate drive unit for garbage truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating plate driving device and a rotating plate driving unit for a so-called packing box type refuse collection vehicle.

[0002]

2. Description of the Related Art Heretofore, this type of packing box type garbage truck has a rotating plate provided in a garbage charging box mounted on a traveling vehicle and a driving means for rotating the rotating plate. In some cases, both sides of a rotating shaft that supports the rotating plate are supported by the trash input box via bearings.

As means for pivotally supporting both sides of a rotating shaft for supporting the rotating plate, both sides of a rotating shaft 80 are supported by bearings 82 attached to a dust bin 81 as shown in FIG. One of the rotating shafts 80 is externally fitted with a sprocket 85 as transmission means for transmitting the driving force of the driving means 83 via an intermediate transmission mechanism 90. A tip of the rotating shaft 80 projecting from the sprocket 85 is supported by a bearing 88 held by a frame 87.

[0004]

In the above-mentioned conventional garbage truck, the rotating plate is rotated upward to scrape up the trash put in the trash insertion box. I do. However, the rotation axis 80
One of the two is that the reaction force is applied to the inside and outside of the sprocket 85.
Since the bearings 82 and 88 respectively receive the bearings, an excessive force acts on both the bearings 82 and 88 and the respective bearing mounting portions, which causes a reduction in the life of the bearings and the like and causes damage. Further, bearings 8 are provided on both sides of the sprocket 85.
Since the shaft is supported at 2,88, the same problem as described above was caused due to the tension of the chain.

Further, one of the rotating shafts 80 is connected to a plurality of bearings 8.
Supporting the bearings at 2 and 88 requires a bearing 88 and a frame 87 for holding the bearing 88, which is a factor that increases the number of parts.

Accordingly, the present invention has been made to solve such a problem, and the free end of the rotary shaft supporting the rotary plate with respect to the transmitting means without being supported by a bearing is used. By this, it is possible to prevent an inadvertent excessive force from being applied to the bearing and the bearing mounting portion that support the rotary shaft when loading dust, and also to reduce the number of parts such as bearings. As an issue.

[0007]

Means for Solving the Problems In order to solve the above problems,
The rotary plate driving device for a refuse collection vehicle according to the present invention is provided with a drive unit 18 for driving the rotary plate 22 in the dust bin 2 mounted on the traveling vehicle D, and a rotary shaft for supporting the rotary plate 22. In a rotary plate driving device for a refuse collection vehicle, in which the driving force of the driving device 18 is transmitted to at least one of the rotating shafts 21, the driving force is transmitted to at least one of the rotating shafts 21. 29 is provided outside the bearing 24, and the free end of the rotary shaft 21 on the tip side of the transmission means 29 is provided.

Further, it is possible to prevent an excessive force generated when the inside and outside positions of the transmission means 29 are supported by bearings on the one side of the rotary shaft 21 having the transmission means when dust is loaded.
In addition, since a bearing or the like that supports the outside of the transmission means in the rotating shaft 21 is not required, the number of parts can be reduced.

Further, the transmission means 29 is made of a sprocket, and the driving means 18 and the intermediate transmission means 2
And the drive unit body 11 is provided integrally with the drive unit body 11, the drive unit body 11 is removably provided on the dust input box 2, and the intermediate transmission unit 26 is connected to the sprocket 19 of the drive unit 18 by a chain. A first sprocket 30 connected via a shaft 33 and a second sprocket 31 connected to the sprocket 29 via a chain 35 are provided on a support shaft 28. Is also preferably located inside.
In such a case, even if the support structure of the sprocket of the rotating shaft is a cantilever structure, the sprocket can be brought closer to the bearing side, and the sprocket can be held firmly.

A rotating plate drive unit of the refuse collection vehicle is provided with a driving means for rotating a rotative plate 22 mounted on the traveling vehicle D and pivotally supported in a refuse input box 2 having a refuse input port 3 at the rear. 18 and an intermediate transmission means 26 for transmitting the driving force of the driving means 18 to the rotary plate 22 side, wherein the driving means 18 and the intermediate transmission means 26 are integrated with the driving device main body 11. And the drive device main body 11 is provided detachably on the refuse input box 2.

The rotary plate drive unit and the like are assembled by integrally mounting the rotary plate drive unit on the traveling vehicle. In addition, in the case of the maintenance, since the rotary plate drive unit can be integrally removed, the assembly and the maintenance can be performed easily and quickly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 4, the refuse collection vehicle according to the present embodiment is mounted on a traveling vehicle D and has a refuse storage box 1 having an opening 1a at the rear, and an opening 1a of the refuse storage box 1 that can be opened and closed. A dust input box 2 having a dust input port 3 at the rear.

The refuse storage box 1 is a substantially rectangular box having a rear opening 1a formed obliquely. The dust storage box 1 is configured to be dumped with its front ascending centered on the horizontal axis 1b by a dump cylinder D1 provided between the dust storage box 1 and the traveling vehicle D.

The upper part of the dust box 2 is pivotally connected to the dust box 1 so as to be rotatable about a horizontal axis 1C. Frames 2a of the dust box 2 are attached to both sides of the dust box 1. Connected to the open / close cylinder 9.

As shown in FIG. 3, the dust box 2 has a pair of left and right side walls 2b, a fixed cover 2c for closing the upper portions of the both side walls 2b, a lower wall 2d curved in a downwardly convex shape, and It has a movable cover 2e pivotally connected to the fixed cover 2c at the top to open and close the slot 3.

Further, a dust pushing device 5 is provided in the dust throwing box 2, and the dust pushing device 5 is a rotating plate which can be rotated forward or backward by a drive unit 10 in order to scrape up the dust. The rotary plate 22 is composed of a push plate 40 for feeding the dust scraped up by the rotary plate 22 into the dust container 1.

As shown in FIGS. 1 and 2, the rotary plate 22 is rotatably connected to a rotary shaft 21 having both ends supported on both side walls 2b of the dust container 2. That is, both side walls 2
b, a bearing block 24 having a built-in bearing 23 is fixed via a mounting body 44, and
Is supported. One of the rotating shafts 21 projects outward from the bearing block 24, and a sprocket 29 is integrally formed with the projecting portion 21 a so that the sprocket 29 rotates integrally.
It is externally fitted and fixed by a fixing tool 47. It is preferable that the sprocket 29 is brought as close to the bearing block 24 as possible.

The drive unit 10 is provided with a hydraulic motor 18 as drive means operated by hydraulic pressure from a hydraulic pump driven by a vehicle engine. The hydraulic motor 18 is mounted on a motor bracket 14, and the motor bracket 14 is fixed to a front portion of the drive device frame 15 via fixing means 17 such as bolts.
The bolt 17 is inserted into a long hole 17a formed in the motor bracket 14 in the front-rear direction so that the movement of the motor bracket 14 in the front-rear direction can be adjusted. A small sprocket 19 is externally fitted and fixed to the drive shaft 18a of the hydraulic motor 18 so as to rotate integrally.

A flange portion 15a is formed on the upper and lower edges of the drive device frame 15 over the entire length in the front-rear direction.
Long holes 32 in the front-rear direction are formed on both sides in the front-rear direction of each flange portion 15a. A bolt 20 is inserted into each slot 32, and the drive device frame 15 is removably attached to both side walls 2 b of the dust bin 2 by the bolt 20, and the rotary shaft 2 extends along the slot 32.
1 can be moved and adjusted in the front-rear direction.

An intermediate transmission mechanism 26 as an intermediate transmission means is provided between the hydraulic motor 18 and the rotating shaft 21. That is, the intermediate shaft 28 is rotatably mounted on the drive device frame 15 and the support frame 25 attached to the drive device frame 15 via bearing blocks 27, respectively.
And a pair of large and small sprockets 3
0 and 31 are externally fitted and fixed so as to rotate integrally.

The small sprocket 31 as the second sprocket is connected to the large sprocket 30 as the first sprocket.
A chain 33 is wound between the large sprocket 30 and the sprocket 19 on the hydraulic motor 18 side. In addition, small sprocket 3
A chain 35 is wound between the shaft 1 and the sprocket 29 on the rotating shaft 21 side. The support frame 25
Has a front wall 25a and a rear wall 25b. The support frame 25, the motor bracket 14 and the drive device frame 15 constitute the drive device main body 11.

At the rear end of the drive device frame 15, a positioning bolt 37 projects rearward, and the bolt 37 is inserted through a stay 38 fixed to the side wall 2b of the refuse input box 2. Then, the nut 39 is screwed into the bolt 37 so as to be positioned on both sides of the stay 38, and the drive device frame 15 is positioned.
5 can be provided with tension.
In addition, the positioning bolt 37 and the nut 39
First tension applying means is configured.

A positioning bolt 45 projects rearward from the rear end of the motor bracket 14, and the bolt 45 is inserted through the front wall 25 a of the support frame 25. Further, the nut 46 is screwed into the bolt 45 so as to be located before and after the front wall 25a, and
, The tension can be applied to the chain 33. The positioning bolt 45 and the nut 46 constitute second tension applying means. The drive unit 1
0 and the sprocket 29, etc.
Coated with

As shown in FIG. 3, the pushing plate 40 is pivotally attached to a pivot 41 fixed to both side walls 2b of the dust box 2, and a pushing cylinder pivotally attached to both side walls 2b. 4
3, so as to be able to swing back and forth. And
The rotating plate 22 and the pushing plate 40 are configured so that their mutual movements are linked to each other. When the rotating plate 22 scrapes up dust and rotates to a certain angle, the rotation stops, and the pushing plate 40 swings forward. The dust on the rotary plate 22 is sent to the dust storage box 1. Incidentally, 52 is a shielding plate.

The refuse collection vehicle according to the present embodiment has the above-described configuration. Hereinafter, a method of using the refuse collection vehicle according to the present embodiment will be described.

When performing the work of collecting dust, the dust is put into the dust input box 2 through the dust input port 3. The dust input from the dust input port 3 falls below the dust input box 2. When the hydraulic motor 18 is operated, the sprocket 19 rotates together with the drive shaft 18a. Therefore,
The driving force of the chain 33, large and small sprocket 30,
The speed is reduced to a predetermined speed and transmitted to the rotating shaft 21 through the 31, the chain 35 and the sprocket 29.

Since the rotating shaft 21 rotates the rotating plate 22 upward (forward rotation), dust is scraped up by the rotating plate 22 and sent into the dust storage box 1 by the pushing plate 40. At this time, the reaction force at the time of scraping up the dust acts on the rotating shaft 21 via the rotating plate 22, but one of the rotating shafts 21 has a free end on the tip end side with respect to the sprocket 29, so that both the bearings 24. With the fulcrum as a fulcrum, the tip side of the rotating shaft 21 swings freely, and the tip side of the rotating shaft 21 hardly receives excessive force generated when the inner and outer positions of the sprocket 29 are supported by bearings.

As a result, it is possible to prevent the life of the bearing 24 and the part holding the bearing 24 on the dust bin 2 from being shortened or damaged. Also, the rotating shaft 21
, The tension of the chain 35 acts on the sprocket 29, but the rotation shaft 21 is hardly subjected to an excessive force due to the tension.

When the chains are loosened, the chains are retightened, and when maintenance such as replacement of parts is performed, the bolts 2 that fix the drive unit frame 15 are used.
The drive units 10 are detached by loosening the respective 0s.
Then, after removing the link constituting the chain 35 and adjusting the length, the first tension applying means is operated to tension the chain 35, and the second tension applying means is operated to drive the drive unit 10. Or the chain 33 on the side.

Such maintenance can be performed by integrally attaching and detaching the drive unit 10, and in the present embodiment, on the outer side of the sprocket 29 of the rotating shaft 21, obstacles such as a bearing and a frame holding the bearing are provided. Because there is no
Maintenance is easy and quick.

The present invention is not limited to the above embodiment. For example, a chain and a sprocket are used as means for transmitting the power of the driving means 18 to the rotating shaft 21, but a pulley having irregularities in the circumferential direction is used. It is also possible to employ a timing belt. The rotating shaft 21 may be a single unit inserted through the rotating plate 22 or may be separate units protruding from both sides of the rotating plate 22.

In the refuse collection vehicle, the refuse storage box 1 and the refuse input box 2 may be integrated, and the refuse storage box 1 may not be a dump type.

[0033]

As described above, in the refuse collection vehicle according to the present invention, at least one of the rotating shafts is provided with a transmitting means for transmitting the driving force of the driving means outside the bearing. In addition, since the distal end side of the rotating shaft with respect to the transmitting means is a free end, an excessive force is applied to one side having the transmitting means of the rotating shaft due to a reaction force acting on the rotating plate when dust is loaded. Can be prevented, and the life and breakage of the bearing and the portion holding the bearing can be prevented. Further, a bearing outside the transmission means and a frame provided with the bearing as in the related art are not required, and the number of parts can be reduced.

Further, the transmission means comprises a sprocket, and the driving means comprises a driving means and an intermediate transmission means provided integrally with the driving device main body, and the driving device main body is mounted on the refuse input box. The intermediate transmission means, which is detachably provided, includes a first sprocket connected to a sprocket of the driving means via a chain, and a second sprocket connected to the sprocket via a chain, provided on a support shaft. When the second sprocket is located inside the first sprocket, even if the support structure of the sprocket is a cantilever structure, the sprocket can be brought closer to the bearing side, and the sprocket is firmly Can be held.

A driving means for rotating a rotary plate mounted on a traveling vehicle and supported by a dust input box having a dust input port on the rear side, and a driving force of the driving means transmitted to the rotary plate side. In the rotary plate drive unit provided with the intermediate transmission means, the drive means and the intermediate transmission means are provided integrally with the drive device main body, and the drive device main body is provided detachably on the trash input box. Therefore, the rotary plate drive unit can be integrally attached to and detached from the traveling vehicle, and there is an advantage that maintenance such as replacement and inspection of parts can be performed easily and quickly.

[Brief description of the drawings]

FIG. 1 is a front view of a rotary plate driving device including a partial cross section according to an embodiment of the present invention.

FIG. 2 is a side view including a partial cross section of the embodiment.

FIG. 3 is an enlarged side view of a main part including a cross section of the same part.

FIG. 4 is a side view of the refuse collection vehicle.

FIG. 5 is an enlarged sectional view of a main part showing a conventional example.

[Explanation of symbols]

D: traveling vehicle, 1: refuse storage box, 2: refuse input box, 11
... Driving device body, 18 ... Hydraulic motor (drive means), 19
... Sprocket, 21 ... Rotating shaft, 22 ... Rotating plate, 24 ...
Bearings, 29: sprocket (transmission means), 26: intermediate transmission mechanism (intermediate transmission means), 35: chain

Claims (3)

(57) [Claims] 1. A driving means (18) for rotating a rotating plate (22) in a dust bin (2) mounted on a traveling vehicle (D) is provided, and a rotation supporting the rotating plate (22) is provided. In a rotary plate driving device for a garbage truck, wherein a shaft (21) is supported by the trash box (2) via a bearing (24), at least one of the rotary shafts (21) includes the driving means ( Transmission means (29) to which the driving force of (18) is transmitted
A rotating plate drive of the refuse collection vehicle, wherein a free end is provided outside the bearing (24) with respect to the transmission means (29) in the rotating shaft (21). apparatus. 2. The transmission means (29) is composed of a sprocket, and the driving means (18) and the intermediate transmission means (26) are provided integrally with the driving device body (11). The apparatus main body (11) is detachably provided in the trash insertion box (2), and is provided with the intermediate transmission means (2).
6) is a sprocket (19) of the driving means (18).
A first sprocket (30) connected to the sprocket via a chain (33) and a second sprocket (31) connected to the sprocket (29) via a chain (35).
The rotary plate driving device for a refuse collection vehicle according to claim 1, wherein the second sprocket (31) is located inside the first sprocket (30). 3. A drive means (18) for rotating a rotary plate (22) mounted on a traveling vehicle (D) and supported by a dust input box (2) having a dust input port (3) at the rear. )
A rotating plate drive unit comprising: a driving force of the driving means (18); and an intermediate transmitting means (26) for transmitting the driving force of the driving means (18) to the rotating plate (22). And a drive unit body (11) is provided integrally with the drive unit body (11), and the drive unit body (11) is detachably provided on the dust bin (2). unit.