JP4713409B2 - Waste loading device and waste collection vehicle equipped with the same - Google Patents

Description

  The present invention relates to a dust loading device for a dust collection vehicle and a dust collection vehicle including the same.

  Conventionally, a dust throwing box connected to the rear opening of the dust containing box, a guide groove member provided on both side walls of the dust throwing box and inclined from the upper front to the lower rear, along the guide groove member 2. Description of the Related Art There is known a dust loading device for a garbage truck that includes a sliding plate that is slidable in the vertical direction and a pushing plate that is provided on the sliding plate so as to be swingable in the front-rear direction.

  For example, as in Patent Document 1, a first support shaft inserted into a boss portion provided at both ends of a sliding plate, and a first roller that is rotatably provided around the first support shaft and abuts against a guide groove member A shaft insertion hole provided in a direction orthogonal to the axial center direction of the first support shaft on the distal end side of the first support shaft, a second support shaft fitted in the shaft insertion hole, 2. Description of the Related Art There is known a dust loading device for a dust collection vehicle including a second roller that is rotatably provided around a second support shaft and that abuts against a guide groove member. With this configuration, the longitudinal load and the lateral load accompanying the dust loading are rationally supported. Further, the first roller is pressed by a snap ring so as not to come off from the tip of the first support shaft.

In Patent Document 2, the shaft support fixed to the slider is slidably supported on the guide rail side of the slider, and the adjusting bolt is tightened to slide the sliding member into the groove of the guide rail without any gap. I try to let them. An oil supply passage for supplying oil to the bearing and the sliding member is formed inside the support shaft.
JP 59-114202 A (FIG. 4) JP-A-8-113308 (FIG. 1)

  However, in the dust loading device of the conventional garbage collection vehicle of Patent Document 1, the sliding plate is frequently slid up and down during the dust collection operation, so the first roller, the second roller, There was a problem that wear and seizure occurred in the vicinity.

  In such a case, it can be considered that the first roller, the second roller, and the periphery thereof are refueled. However, in the oiling path as in Patent Document 2, the first support shaft, the second support shaft, the first roller, The second roller could not be refueled at the same time, and there was a risk that some of the refueling could not be achieved. If the sliding plate is slid frequently in the vertical direction without sufficient lubrication, the parts where the lubrication cannot reach may be damaged due to wear or seizure. Parts that have been disassembled and worn have to be replaced, and the repair work is extremely complicated. In addition, when it is not possible to refuel at the same time, it is necessary to provide another refueling port, which increases the processing cost and makes the refueling operation complicated.

  The present invention has been made in view of the above points, and an object of the present invention is to prevent wear and seizure of the first roller, the second roller, and their surroundings on the sliding plate, and save labor of maintenance. There is.

  In order to achieve the above object, in the present invention, oil is supplied to the first support shaft, the second support shaft, the first roller, and the second roller simultaneously.

Specifically, in the first invention, a dust throwing box connected to the rear opening of the dust containing box,
Guide groove members provided on both side walls of the dust throwing box, and inclined from the upper front to the lower rear;
A sliding plate slidable in the vertical direction along the guide groove member;
A pressing plate provided on the sliding plate so as to be swingable in the front-rear direction;
A first support shaft inserted into a boss provided at both ends of the sliding plate;
A first roller rotatably provided around the first support shaft and in contact with the guide groove member;
A shaft insertion hole provided in a direction orthogonal to the axial center direction of the first support shaft on the tip side of the first support shaft;
A second support shaft fitted in the shaft insertion hole;
The present invention is directed to a dust loading device for a dust collection vehicle including a second roller that is rotatably provided around the second support shaft and is in contact with the guide groove member.

Then, the dust loading device comprises a first support shaft on SL, the second support shaft, and oil supply means for supplying oil simultaneously to the first and second rollers,
The refueling means is
A first oil supply path provided inside the first support shaft and extending from the base end side of the first support shaft to the shaft insertion hole;
A second oil supply path provided in the second support shaft and extending in the axial direction of the second support shaft;
A first branch path that branches off from the second oil supply path and takes the lubricating oil flowing from the first oil supply path into the second oil supply path;
A second branch path branched from the second oil supply path and supplying oil to the second roller;
A third oil supply passage communicating with the bottom of the shaft insertion hole and supplying oil to the first roller;
The first branch passage communicates with a lubricating groove that is recessed in the circumferential direction on the outer periphery of the second support shaft .

With the above structure, by supplying oil means, the first support shaft, second support shaft, the oil is supplied simultaneously to the first roller and the second roller, the fueling operation is very easy, the first roller, second Wear and seizure of the roller and its surroundings are reliably prevented . In addition , when the first oil supply passage is supplied, the lubricating oil reaches the shaft insertion hole from the first oil supply passage, and the first insertion passage passes through the first branch passage from the lubricating groove on the outer periphery of the second support shaft . The oil is taken into the second oil supply passage, proceeds in the axial direction of the second support shaft, and is supplied to the first roller through the third oil supply passage. The lubricating oil in the second oil supply passage is further supplied to the second roller through the second branch passage. In this way, the oil supply means supplies the first support shaft, the second support shaft, the first roller, and the second roller at the same time, so that the oil supply operation is easy and the sliding plate frequently slides up and down. Even in this case, the first roller, the second roller and the periphery thereof are not worn or seized .

In 2nd invention, it is set as the structure provided with the refuse loading apparatus of Claim 1 .

  According to the above configuration, the refueling operation is extremely easy, and wear and seizure of the first roller, the second roller, and their surroundings are prevented, so that a garbage collection vehicle that does not require maintenance work can be obtained.

As described above, according to the present invention, by a sheet oil means, the first support shaft, second support shaft, and so simultaneously fueling the first roller and the second roller. For this reason, it is possible to prevent rattling of the sliding plate and to make the lubrication work very easy, and to prevent wear and seizure of the first roller, the second roller and their surroundings on the sliding plate, thereby reducing the maintenance work. It can be omitted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a dust loading device of a garbage truck. FIG. 2 is a rear view showing the dust loading device of the garbage truck. 3 is a cross-sectional view taken along line III-III in FIG.

  1 and 2, a dust container 3 is mounted on a vehicle body 2 of the garbage truck 1. The rear opening 4 of the dust container 3 is provided with a dust container 6 (indicated by a two-dot chain line only in FIG. 1) pivotally supported by an input box support pin 5 above. The dust box 6 is configured to be rotatable about the input box support pin 5 by a rotating cylinder (not shown) provided between the dust container 3 and the dust box 6.

  A throw-in port (not shown) is opened at the rear part of the dust throw-in box 6, and a dust loading device 20 is provided in the inside. The dust loading device 20 is for compressing the dust thrown into the dust throwing box 6 through the filling port and loading it into the dust container 3.

  As shown in FIG. 3, guide groove members 8 made of channel steel are also laid on both side walls of the dust throwing box 6 from the front upper part toward the rear lower part also serving as a reinforcing frame. The guide groove member 8 is made of channel steel having a flat bottom surface 8a and side surfaces 8b erected vertically from both ends of the bottom surface 8a. A sliding plate 9 is accommodated in the dust throwing box 6 so as to extend to its full width. First and second rollers 10 and 11 (shown in FIG. 3) are rotatably provided above and below both side edges of the sliding plate 9. The first and second rollers 10 and 11 are slidably fitted along the inner wall of the guide groove member 8.

  The sliding plate support shaft 12 is inserted into the support portions 18 provided at the left and right ends of the upper portion of the back surface of the sliding plate 9. The sliding plate support shaft 12 matches the sliding distance of the sliding plate 9 and exceeds the sliding opening (not shown) formed in the side wall of the dust throwing box 6 so as to be outside the inside of the dust throwing box 6. It is arranged to protrude.

  Sliding provided between the sliding plate support shaft 12 projecting outward from the side wall of the dust input box 6 and the lower part of the dust input box 6 along the inclination direction of the guide groove member 8 outside the dust input box 6. A cylinder 13 is connected. The sliding plate 9 is reciprocated up and down along the guide groove member 8 by the expansion and contraction operation of the sliding cylinder 13.

  At the lower end of the sliding plate 9, a pushing plate 15 that extends to the full width of the dust throwing box 6 is supported so as to be swingable back and forth. The tip of the pushing plate 15 is slightly bent toward the front. A swing cylinder 14 is connected between a connecting portion 15a projecting from the back surface of the push plate 15 and a slide plate support shaft 12 provided at the upper back of the slide plate 9. The pushing plate 15 is swung back and forth by an expansion / contraction operation 14.

  Although not shown, a discharge plate formed in the dust storage box 3 having a size substantially the same as the horizontal width and vertical height of the dust storage box 3 is slidably disposed in the front-rear direction. It slides back and forth in the dust container 3.

  Next, the structure of the sliding portion of the sliding plate 9 will be described in detail.

  As shown in FIG. 3, cylindrical boss portions 21 are respectively provided at both ends of the sliding plate 9. A columnar first support shaft 22 extending in the horizontal direction is inserted into each boss portion 21. The first roller 10 is rotatably provided around the first support shaft 22. The first roller 10 is in contact with the side surface 8 b of the guide groove member 8. As shown in FIG. 8, a first bearing 10 a is fitted to the first roller 10 so as not to rotate with respect to the first roller 10. For example, the first bearing 10a is a sliding bearing.

  As shown in FIG. 4, a shaft insertion hole 24 is formed on the distal end side of the first support shaft 22 in a direction orthogonal to the axial direction of the first support shaft 22. The shaft insertion hole 24 extends from the outer periphery of the distal end of the first support shaft 22 to the vicinity of the opposite outer periphery, and the bottom 24a is tapered. A second roller storage hole 25 having a substantially rectangular cross section for storing the second roller 11 is formed at the tip of the first support shaft 22. A collar portion 26 is welded to the outer periphery of the first support shaft 22. The side surface of the flange portion 26 on the outer side in the left-right direction is in contact with the side surface of the first bearing 10a.

  As shown in FIG. 3, the shaft insertion hole 24 is fitted with a second support shaft 27 whose tip is tapered in accordance with the bottom 24 a of the shaft insertion hole 24. The second roller 11 is rotatably provided around the second support shaft 27. The second roller 11 is in contact with the bottom surface 8 a of the guide groove member 8. A second bearing 11 a is fitted to the second roller 11 so as not to rotate with respect to the second roller 11. The 2nd bearing 11a is comprised by the rolling bearing.

  The dust loading device 20 includes a gap adjusting means 30 for attaching the first support shaft 22 to the boss portion 21 so as to be slidable in the axial direction. Specifically, the outer diameter of the first support shaft 22 is formed slightly smaller than the inner diameter of the boss portion 21, and the first support shaft 22 is inserted so as to be slidable in the horizontal direction with respect to the boss portion 21. ing. A disc-shaped lid member 31 is welded to the inside of the boss portion 21 in the left-right direction. The lid member 31 is formed with an adjustment bolt insertion screw hole 33 for screwing the middle of the adjustment bolt 35. On the other hand, an adjustment bolt fixing screw hole 34 for screwing the tip end of the adjustment bolt 35 is formed at the base end of the first support shaft 22. The adjustment bolt 35 is screwed to the adjustment bolt insertion screw hole 33, and the lock nut 32 and the spring are connected with the adjustment bolt 35 passing through the adjustment bolt insertion screw hole 33 to the adjustment bolt fixing screw hole 34. It is fixed by a washer 39. Thus, the 1st support shaft 22 is attached to the appropriate position of the left-right horizontal direction of the boss | hub part 21 by adjusting the fastening condition of the adjustment bolt 35 in this way. A nipple 36 for supplying lubricating oil is attached to the lid member 31 corresponding to the lower first support shaft 22. Between the lid member 31 and the first support shaft 22, a lubricating oil filling space 37 filled with lubricating oil supplied from the nipple 36 is formed. As shown in FIG. 1, with respect to the upper first support shaft 22, a lubrication pipe 38 is provided on the outer side surface of the sliding plate 9, and the lubricating oil filling space 37 is supplied from a nipple 36 provided at the tip thereof. It has become so. For this reason, since the two nipples 36 are provided in the vicinity, the refueling work is facilitated.

  The dust loading device 20 includes an oil supply means 40 for supplying oil to the first support shaft 22, the second support shaft 27, the first roller 10, and the second roller 11 at the same time.

  Specifically, as shown in FIGS. 3 and 4, the oil supply means 40 is provided inside the first support shaft 22, and extends from the base end side of the first support shaft 22 to the shaft insertion hole 24. A first oil supply passage 41 is provided.

  As shown in FIG. 7, the oil supply means 40 includes a second oil supply path 42 that is provided inside the second support shaft 27 and extends in the axial direction of the second support shaft 27. The second oil supply passage 42 passes through the center of the second support shaft 27 in the axial center direction.

  The oil supply means 40 branches from the second oil supply passage 42, and the first oil supply passage 43 takes in the lubricating oil flowing from the first oil supply passage 41 into the second oil supply passage 42, and the second oil supply passage 42. A second branch path 44 that branches and supplies oil to the second roller 11 is provided. That is, a first lubricating groove 48 is formed on the outer periphery of the second support shaft 27 so as to correspond to the first branch path 43. The lubricating oil that flows from the first oil supply passage 41 and fills the first lubricating groove 48 is taken into the second oil supply passage 42. A second lubricating groove 49 is formed on the outer periphery of the second support shaft 27 so as to correspond to the second branch path 44 and the second bearing 11a. Part of the lubricating oil flowing from the second oil supply passage 42 flows into the second lubricating groove 49 via the second branch passage 44, and is supplied to the second bearing 11a. The remaining part of the lubricating oil flowing from the second oil supply passage 42 flows out from the base end side of the second support shaft 27 and is supplied to the first bearing 10a.

  The oil supply means 40 includes a third oil supply passage 45 that communicates with the bottom 24 a of the shaft insertion hole 24 and supplies oil to the first roller 10. That is, the third oil supply passage 45 penetrates from the bottom 24 a of the shaft insertion hole 24 to the outer periphery of the first support shaft 22. The remainder of the lubricating oil flowing from the second oil supply passage 42 flows out from the tip end side of the second support shaft 27 and is supplied to the first bearing 10 a through the third oil supply passage 45.

  Next, the fixing structure of the first roller 10 will be described.

  As shown in FIGS. 5 and 6, a ring groove 60 into which the snap ring 50 is fitted is formed on the outer periphery of the first support shaft 22. A groove portion 54 having a flat bottom surface is formed at a position corresponding to the opening of the third oil supply passage 45.

  As shown in FIG. 3, the first roller 10 is pressed by a snap ring 50 so as not to be detached from the tip of the first support shaft 22. Specifically, the snap ring 50 presses the outer side surface of the first bearing 10a of the first roller 10 via an annular plate 51 as a wear preventing member. When the first bearing 10a is directly pressed by the snap ring 50, the first bearing 10a is damaged by the snap ring 50. Therefore, the annular plate 51 is provided between the snap ring 50 and the first bearing 10a. The inner side surface of the first bearing 10 a is in contact with the flange portion 26 of the first support shaft 22.

  As shown in FIG. 9, the annular plate 51 is non-rotatably attached to the first support shaft 22 by a rotation preventing means 52. A protrusion 53 having a flat tip protrudes from a part of the inner periphery of the annular plate 51. That is, the rotation preventing means 52 includes a protrusion 53 of the annular plate 51 and a groove 54 provided on the outer periphery of the first support shaft 22 so as to correspond to the protrusion 53, and the protrusion 53 engages with the groove 54. Thus, the annular plate 51 is not rotatable with respect to the first support shaft 22.

-Operation of the dust loading device-
Next, the operation of the garbage loading device 20 of the garbage truck according to the present embodiment will be described.

  The dust loading device 20 configured as described above is configured such that the dust is thrown into the dust throwing box 6 through the throwing port in a state where both the sliding cylinder 13 and the swing cylinder 14 are extended and the sliding plate 9 is in the lift end position. The loading operation is started by turning on a start switch (not shown).

  First, the oscillating cylinder 14 is retracted and the pushing plate 15 is reversed to reach the reverse end position (reverse process). Thereafter, the sliding cylinder 13 is retracted and the sliding plate 9 is lowered, and the pushing plate 15 is shifted to the lowering process.

  Next, when the pressing plate 15 reaches the lowering end position, the swing cylinder 14 is extended to swing the pressing plate 15 forward, and the process proceeds to the compression step.

  When the pushing plate 15 swings to the foremost position, the sliding cylinder 13 is extended and the pushing plate 15 is lifted to move to the ascending process. When the pushing plate 15 reaches the rising end position, a series of steps are performed. End the loading operation.

  Thereby, the dust loading operation | movement which made each cycle of inversion, descent | fall, compression, and a raise 1 cycle can be performed repeatedly.

  At this time, the annular plate 51 tries to rotate along with the rotation of the first roller 10, but the protrusion 53 of the annular plate 51 is engaged with the groove 54 of the first support shaft 22. Even if one roller 10 rotates, the annular plate 51 does not rotate. For this reason, the annular plate 51 is not worn and the sliding plate 9 does not rattle, and it is not necessary to replace the annular plate 51, so that the maintenance work is saved. Further, a wear preventing member having a simple structure can be obtained.

-Inspection work of dust loading device-
Next, the inspection work of the dust loading device 20 of this embodiment will be described.

  In the daily inspection, the clearance adjustment means 30 adjusts the clearance between the second roller 11 and the bottom surface 8a of the guide groove member 8 to prevent the sliding plate 9 from rattling due to the excessive opening, and the guide groove member. 8 Excessive load on the second roller 11 due to strong contact with the inner surface is prevented.

  Further, in the refueling operation, the oil supply means 40 supplies oil to the first support shaft 22, the second support shaft 27, the first roller 10 and the second roller 11 at the same time. Wear and seizure of the first roller 10, the second roller 11, and the periphery thereof are reliably prevented.

  That is, when lubricating oil is supplied to the nipple 36, the lubricating oil filling space 37 is filled with lubricating oil, and the lubricating oil flows from the lubricating oil filling space 37 into the first oil supply path 41. As the lubricating oil, grease is generally used, but it is not particular about it.

  The remaining lubricating oil in the first oil supply passage 41 reaches the shaft insertion hole 24. In the shaft insertion hole 24, the lubricating oil is taken into the second oil supply passage 42 through the first branch passage 43 from the first lubricating groove 48 on the outer periphery of the second support shaft 27.

  Part of the lubricating oil taken into the second oil supply passage 42 flows into the second lubricating groove 49 through the second branch passage 44 and is supplied to the second bearing 11a.

  The remaining part of the lubricating oil taken into the second oil supply passage 42 flows out from the base end side of the second support shaft 27 and is supplied to the first bearing 10a.

  The remainder of the lubricating oil flowing from the second oil supply passage 42 proceeds in the axial direction of the second support shaft 27, flows out from the tip end side thereof, and is supplied to the first bearing 10 a through the third oil supply passage 45.

  Thus, the oil supply means 40 supplies oil to the first support shaft 22, the second support shaft 27, the first roller 10 (first bearing 10a) and the second roller 11 (second bearing 11a) at the same time. The refueling operation is easy, and even if the sliding plate 9 frequently slides up and down, the first roller 10, the second roller 11, and the periphery thereof are not worn or seized.

-Effect of the embodiment-
Therefore, according to the dust loading device 20 of the dust collection vehicle and the dust collection vehicle 1 having the same according to the present embodiment, the clearance between the second roller 11 and the inner surface of the guide groove member 8 is adjusted by the clearance adjustment means 30. At the same time, the oil supply means 40 supplies oil to the first support shaft 22, the second support shaft 27, the first roller 10, and the second roller 11 simultaneously. For this reason, it is possible to prevent the sliding plate 9 from rattling and to make the lubrication work very easy, and to prevent wear and seizure of the first roller 10, the second roller 11 and their surroundings on the sliding plate 9, Maintenance work can be saved.

  In addition, the refueling operation is extremely easy, and wear and seizure of the first roller 10, the second roller 11 and their surroundings are prevented, so that it is possible to obtain the garbage collection vehicle 1 that does not require maintenance work.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, although the second bearing 11a is a rolling bearing, it may be a sliding bearing similar to the first bearing 10a, and the first bearing 10a may be a rolling bearing.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

It is a side view which shows the refuse loading apparatus of a refuse collection vehicle. It is a rear view which shows the dust loading apparatus of a garbage collection vehicle. It is the III-III sectional view taken on the line of FIG. It is sectional drawing which shows a 1st support shaft. It is the top view which looked at FIG. 4 from the V direction. It is the side view which looked at FIG. 4 from VI direction. It is sectional drawing which shows a 2nd support shaft. It is sectional drawing which shows a 1st roller. It is a top view which shows the member for abrasion prevention.

DESCRIPTION OF SYMBOLS 1 Dust collection truck 3 Dust container 4 Back opening 6 Dust input box 8 Guide groove member 9 Sliding plate 10 First roller 11 Second roller 15 Push plate 20 Dust loading device 21 Boss portion 22 First support shaft 24 shaft Insertion hole 27 Second support shaft 30 Clearance adjustment means 40 Oil supply means 41 First oil passage 42 Second oil passage 43 First branch path 44 Second branch path 45 Third oil path 50 Snap ring 51 Wear prevention member 52 Anti-rotation Means 53 Projection 54 Groove

Claims (2)

A dust input box connected to the rear opening of the dust storage box;
Guide groove members provided on both side walls of the dust throwing box, and inclined from the upper front to the lower rear;
A sliding plate slidable in the vertical direction along the guide groove member;
A pressing plate provided on the sliding plate so as to be swingable in the front-rear direction;
A first support shaft inserted into a boss provided at both ends of the sliding plate;
A first roller rotatably provided around the first support shaft and in contact with the guide groove member;
A shaft insertion hole provided in a direction orthogonal to the axial center direction of the first support shaft on the tip side of the first support shaft;
A second support shaft fitted in the shaft insertion hole;
A dust loading device for a dust collecting vehicle provided with a second roller rotatably provided around the second support shaft and in contact with the guide groove member ,
With the first support shaft above SL, the second support shaft, and oil supply means for supplying oil simultaneously to the first and second rollers,
The refueling means is
A first oil supply path provided inside the first support shaft and extending from the base end side of the first support shaft to the shaft insertion hole;
A second oil supply path provided in the second support shaft and extending in the axial direction of the second support shaft;
A first branch path that branches off from the second oil supply path and takes the lubricating oil flowing from the first oil supply path into the second oil supply path;
A second branch path branched from the second oil supply path and supplying oil to the second roller;
A third oil supply passage communicating with the bottom of the shaft insertion hole and supplying oil to the first roller;
The dust loading device , wherein the first branch passage communicates with a lubricating groove that is recessed to extend in a circumferential direction on an outer periphery of the second support shaft . A refuse collection vehicle comprising the refuse loading device according to claim 1 .

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