JPS599130B2 - soil spreading vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sprayer that sprays the grass on a lawn at a golf course or the like.

Conventional top soil spreading vehicles of this type cannot load top soil directly from the dump trunk to the top soil loading section of the top spreading vehicle, and require a large loading platform equipped with a conveyor or a shovel loader. It had the disadvantage of being necessary.

The present invention was made in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a top soil spreading vehicle that can directly load top soil from a dump truck onto a top loading section.

The top scattering vehicle according to the present invention achieves the above-mentioned object by making the vehicle body and, by extension, the top soil loading section movable up and down.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

In Figures 1 to 8, a soil spreading vehicle 40 and a vehicle body frame 5 are shown.
A pair of left and right support shafts 67 that protrude in the width direction of the vehicle body frame 5 are rotatably supported on both left and right sides of the vehicle body frame 5. rotating arm 6
The middle parts of 6 are fixed to each other.

A vehicle body frame 5 is attached to one end of the pair of rotating arms 66, respectively.
An axle 7 extending in the width direction is rotatably supported,
Transfer wheels 8 are fixed to these axles 7, respectively.

The tip portions of a pair of left and right first hydraulic cylinders 630 are rotatably coupled to the other ends of the pair of rotating arms 66 via coupling shafts 69 extending in the horizontal direction. .

The rear end of the main body of the first hydraulic cylinder 63 is rotatably coupled to the vehicle body 5 via a coupling shaft 65 extending in the horizontal direction.

Note that, contrary to this embodiment, the front end of the first hydraulic cylinder 63 is directed toward the vehicle body frame 5, and the rear end of the main body of the first hydraulic cylinder 630 is directed toward the rotating arm 66. They may be rotatably connected to each other.

At the front end 6 of the vehicle body frame 5, one end of the pair of upper and lower frame-shaped link bodies 3 is connected to a pair of upper and lower coupling shafts 7 extending in the horizontal direction.
6, each is rotatably supported.

Further, the other end of the link body 3 has a pair of upper and lower connecting shafts 7.
5, and is rotatably supported at the rear end of the connecting body 74.

Here, the vehicle body frame 5, the pair of link bodies 3, and the connecting body T4 constitute a four-bar rotational chain in which a line segment connecting their four coupling axes 75, 76 forms a parallelogram.

Reference numeral 1 denotes a traction drive vehicle such as a tractor that pulls the primary scattering vehicle 4 , and a connecting portion 72 provided at the rear end portion 2 of this traction vehicle 1 has a connecting body 74 of the primary scattering vehicle 4 . The front end portions are rotatably connected via a pin 73 inserted in the vertical direction.

The upper one of the pair of upper and lower link bodies 3 includes:
A projecting edge 71 is fixed to the projecting edge 71, and the tip of the rond of the second hydraulic cylinder 62 is rotatably connected to the projecting edge 71 via a connecting shaft 70 extending in the width direction of the vehicle body frame 5. There is.

The rear end of the main body of the second hydraulic cylinder 62 is rotatably coupled to the front end and near the top of the vehicle body frame 5 via a coupling shaft 64 extending in the width direction of the vehicle body frame 5.

Note that, contrary to this embodiment, the tip of the second hydraulic cylinder 620 is rotated toward the vehicle body frame 5, and the rear end of the main body of the second hydraulic cylinder 62 is rotated toward the flange 71. They may be connected freely.

Side frame plates 19 are attached to both left and right sides of the vehicle body frame 5, and these side frame plates 19 and the vehicle body frame 5 constitute a top layer loading section 11.

Note that a top soil distribution port (not shown) is opened at the rear end of the top soil loading section 11.

A front drive wheel axle 13' and a rear drive wheel axle 12' are rotatably supported at the front and rear ends of the side frame plate 19, respectively.

A front drive wheel 13 is fixed to the front drive wheel axle 13', and a rear drive wheel 12 is fixed to the rear drive wheel axle 12'.

A belt 52 is wound around the front drive wheel 13 and the rear drive wheel 12.

Here, the front drive wheel 13, the rear drive wheel 12, and the belt 52 constitute a belt conveyor 14,
This belt conveyor 14 is located at the bottom of the top layer loading section 11.

An upper beater rotation shaft 48 and a lower beater rotation shaft 49 extending in the width direction of the vehicle body frame 5 are rotatably supported on the side frame plate 19, respectively.

An upper beater 16 having a blade plate 16' is fixed to the upper beater rotating shaft 48, and a lower beater 17 having a blade plate 17' is fixed to the lower beater rotating shaft 49.

The upper beater 16 and the lower beater 17 are substantially in contact with the rear end 15 of the belt conveyor 14.

And between the upper beater 16 and the lower beater 17,
A suitable small gap is provided.

The rear drive wheel 12, upper beater 16, and lower beater 11 are driven by a drive source (not shown) on the traction drive vehicle 1 via a power transmission mechanism described below.

As clearly shown in FIG. 3, the front end 6 of the vehicle body frame 5
A drive shaft 29 is supported so as to be rotatable and extend in the longitudinal direction of the vehicle body frame 5, and this drive shaft 29 is connected to a drive source on the traction drive vehicle 1 via a universal joint 90. .

As clearly shown in FIG. 5, a pulley 30 is fixed to the drive shaft 29.

Further, an interlocking shaft 36 is supported on the vehicle body frame 5 so as to be rotatable and extend in the longitudinal direction of the vehicle body frame 5, and pulleys 31 and 32 are fixed to both ends of the interlocking shaft 36. .

A belt 34 is wound around the pulleys 30 and 31.

A bevel gear mechanism 37 is attached near the rear end of the vehicle body frame 5, and a pulley 33 is fixed to an input shaft of the bevel gear mechanism 37.

This pulley 33 and the pulley 32 have
A belt 35 is wrapped around it.

A pulley 40 is fixed to one output shaft of the bevel gear mechanism 3T, and a belt 4 is attached to this pulley 40 and a pulley 41 fixed to the lower beater rotating shaft 49.
4 is wrapped around it.

The other output shaft of the bevel gear mechanism 37 is connected to the input shaft of a reducer 38 attached near the rear end of the vehicle body frame 5 via a connecting shaft 39.

A pulley 42 and a pulley 50 are fixed to the output shaft of the reduction gear 38, and a belt 5 is attached to the pulley 50 and the pulley 53 fixed to the rear drive wheel shaft 12'.
1 is wrapped around it.

On the other hand, a pulley 43 is fixed to the shaft of a gear 46 that is rotatably supported near the rear end of the vehicle body frame 5.
A belt 45 is wound around the pulley 43 and pulley 42.

The gear 46 is meshed with a gear 47 fixed to the upper beater rotating shaft 48.

(Note that the number of teeth on gear 46 is greater than the number of teeth on gear 47).

As shown in FIG. 3, a support shaft 22 is provided at the upper end of the side frame plate 19 and near the rear end thereof via a bearing 21, and is rotatable in the width direction of the vehicle body frame 5. A base 24 of a swing arm frame 55 is fixed to the support shaft 22 .

An upper feed control plate 23 is fixed to the swing arm frame 55, and the tip of the control frame plate 23 faces the belt 52 of the belt conveyor 14 with a gap therebetween.

Furthermore, a projecting edge 56 is fixed near the tip of the control frame plate 23.

This projecting edge 56 has a connecting shaft 5 extending in the width direction of the vehicle body frame 5.
A base 58 of a rotating arm 59 is rotatably connected via 7.

On the other hand, a female threaded body 27 is rotatably supported at the upper end and near the rear end of the side frame plate 19 via a support shaft (not shown) extending in the width direction of the vehicle body frame 5. A male thread cut on the upper end side of the control stick 28 is screwed into the female threaded body 21.

The lower end portion 60 of the control stick 28 is connected to a rotating arm 59 so as to be rotatable and relatively immovable in the axial direction.
is supported by

A control handle 61 is fixed to the upper end of the control stick 28.

As clearly shown in FIG. 3, a support sleeve 82 is fixed to the front end portion 6 of the vehicle body frame 5.
2, a hanging support rod 10 is supported so as to be movable up and down.

A ground contact support ring 9 is rotatably supported at the lower end of the hanging support rod 10.

The hanging support rod 10 can be locked to the support sleeve 82 by a lock pin 83 at the upper and lower limit positions relative to the support sleeve 82 (
(See Figure 4).

Next, the operation of this embodiment will be explained.

At the time of actual dispersion, as shown in FIG. 6, both the first hydraulic cylinder 63 and the second hydraulic cylinder 620 are fully extended, and the rotating arm 66 is rotated most clockwise in the figure. On the other hand, the two cylinder bodies 3 extend in the longitudinal direction of the vehicle body frame 5 (that is, the vehicle body frame 5
(extending parallel to).

In this state, the vehicle body frame 5 is raised from the ground (turf surface) to a height convenient for the later-described spraying work.

On the other hand, when loading top soil into the top soil loading section 11, the rods of the first hydraulic cylinder 63 and the second hydraulic cylinder 62 are retracted from the state shown in FIG.

Then, the rotating arm 66 is rotated counterclockwise in the figure about the support shaft 67, and the two link bodies 3 are respectively rotated clockwise in the figure about the coupling shaft 15.

As a result, the body frame 5 descends and passes through the state shown in FIG.
As shown in FIG. 8, the bottom of the vehicle body frame 5 is in contact with the ground.

Therefore, the top soil can be dropped and loaded directly from the dump trunk onto the filler loading section 11 without requiring a large loading platform equipped with a conveyor or a shovel loader as in the prior art.

In addition, during the above-mentioned initial loading, the suspension support rod 10 is held at the upper limit position with respect to the support sleeve 82 by the lock pin 83 so that the ground contact support wheel 9 does not prevent the lowering of the vehicle body frame 5. Lock it in the mantle 82.

Also, during the later-described general spraying operation, the suspension support rod 10 is similarly locked to the support sleeve 82 at the upper limit position with respect to the support sleeve 82 by means of the lock pin 83.

Therefore, in this case, the ground-contact support wheel 9 is suspended from the support sleeve 82 via the suspension support rod 10, and is raised above the lawn surface.

This is done because if the ground-contact support wheels 9 come into contact with the lawn surface during the soil spreading work, there is a risk that the support wheels 9 will damage the lawn surface.

If the scattering vehicle 4 is temporarily stopped, the suspension support rod 10 is fixed to the support sleeve 82 by the lock pin 83.
At the lower limit position, the sleeve 82 is locked and the scattering wheel 4 is maintained in the state shown in FIG.

Here, in this main spreading vehicle, the transfer wheel 8 is not raised or lowered with respect to the body frame 5 directly by the first hydraulic cylinder 63, but by the first hydraulic cylinder 63 via the rotating arm 66. Since the rolling wheels 8 are raised and lowered relative to the vehicle body frame 5, the range of elevation of the vehicle body frame 5 can be expanded relative to the stroke of the first hydraulic cylinder 630.

therefore,. The stroke of the first hydraulic cylinder 630 can be made small, and thus the hydraulic cylinder 63 can be made smaller.

In addition, as described above, since the rolling wheel 8 is raised and lowered with respect to the vehicle body frame 5 by the first hydraulic cylinder 63 via the rotating arm 66, the first hydraulic cylinder 63 is moved upwardly and downwardly. Since there is no need to provide the cylinder 63
Inconveniences such as protruding above the top layer loading section 11 can also be avoided.

Second, since the first hydraulic cylinder 63 and the rotating arm 66 are provided on both the left and right sides of the vehicle body frame 5, the first hydraulic cylinder 63 and the rotating arm 66 do not interfere with the lowering of the vehicle body frame 5. There is nothing that can cause it.

Further, the pair of upper and lower link bodies 3, the connecting body 74, and the vehicle body frame 5 are connected to their four connecting shafts 75, 7, as described above.
Since the line segments connecting 6 constitute a four-node rotation chain forming a parallelogram, even when the top layer loading section 11 is lifted up as shown in Fig. 6, it is lowered as shown in Fig. 8. Since the connecting body 74 connected to the traction drive vehicle 1 always maintains the same posture even when the traction drive vehicle 1 is in the There is no problem in connection.

Next, the top soil dispersion work according to this embodiment will be explained.

Once the current loading is completed as described above, the first hydraulic cylinder 63 and the second hydraulic cylinder 620
Extend the rondo together, and as shown in FIG. 6, the car body 5,
As a result, the upper loading section 11 is in an elevated state.

In such a state, when the drive shaft 29 is driven by the drive source of the traction drive vehicle 1 via the shaft coupling 90 while the traction drive vehicle 1 is towing the soil spreading vehicle 4 and traveling, the driving force is reduced. is transmitted to the input shaft of the bevel gear mechanism 370 via the pulley 30, belt 34, pulley 31, interlocking shaft 36, pulley 32, belt 35, and pulley 33.

The driving force is further applied to this bevel gear mechanism 37.
0 input shaft to the lower beater 16 via one output shaft of the bevel gear mechanism 37, the pulley 40, the belt 44, the pulley 41, and the lower beater rotating shaft 49, and the other output shaft of the bevel gear mechanism 37 , connecting shaft 3
9, reducer '38, pulley 42, belt 45, pulley 43, gears 46, 47, and upper beater rotating shaft 48
is transmitted to the upper beater 17 via the reducer 38.
, the pulley 50, the belt 51, the pulleys 5 and 3, and the rear drive wheel axle 12'.

As a result, in FIGS. 1, 3, and 5 to 8, the lower beater 17 moves clockwise, the upper beater 16 moves counterclockwise, and the upper surface side of the belt 52 of the belt conveyor 14 moves rearward. rotated in each direction.

As a result, the top soil on the belt conveyor 14 in the top soil loading section 11 is conveyed rearward while the conveyance amount is controlled by the top soil delivery control frame plate 23, and the top beater 16 and the bottom beater 16 17, the soil passes between the beaters 16 and 17 and is discharged to the rear of the vehicle body frame 5 from the soil distribution port.

At this time, the upper beater 16 and the lower beater 1
7, the soil clods are finely crushed, so the grains are evenly distributed over the lawn.

The amount of top soil to be spread (the intended thickness of the top soil to be spread on the lawn surface) is determined by the amount of top soil that passes through the lower end 25 of the top soil delivery control frame plate 23, and the amount of top soil that passes through the lower end 25 of the top soil feed control frame plate 23. The upper amount is determined by the spacing between the lower end 25 and the belt 52 of the belt conveyor 14.

When the control stick 28 is rotated by rotating the control handle 61, the control stick 28 moves up and down with respect to the female screw body 27, and as a result, the swinging arm frame 55 and the top soil delivery control frame plate 23 are supported. Since it rotates around the shaft 22,
The lower end portion 25 of the upper feed frame control frame plate 23 and the belt 52
The interval between the two changes.

Therefore, by rotating the control handle 61,
The lower end portion 25 of the upper feed frame control frame plate 23 and the belt 52
It is possible to adjust the distance between the two and, by extension, the amount of top soil applied.

As described above, the top spreading vehicle according to the present invention can (a) lower the top soil loading section during top loading, so top soil can be directly loaded from the dump truck into the top soil loading section.

(mouth) Directly by the first hydraulic cylinder. Rather than raising and lowering the transfer wheel relative to the vehicle body frame, the transfer wheel is raised and lowered relative to the vehicle body frame by the first hydraulic cylinder via the rotating arm. The lifting range of the body frame can be expanded with respect to the stroke.

Therefore, the stroke of the first hydraulic cylinder can be reduced, and the hydraulic cylinder can be downsized.

(Example) As mentioned above, since the transfer wheel is raised and lowered relative to the vehicle frame by the first hydraulic cylinder via the rotating arm, there is no need to provide the first hydraulic cylinder in the vertical direction. Therefore, inconveniences such as the cylinder protruding above the top layer loading section can be avoided.

r-t Since the first hydraulic cylinder and rotating arm are provided on both the left and right sides of the vehicle body frame, the first hydraulic cylinder and rotating arm do not interfere with the lowering of the vehicle body frame. .

(d) As mentioned above, the upper and lower pairs of link bodies, coupling bodies, and vehicle body frames form a four-node rotation chain in which the line segments connecting their four connection axes form a parallelogram. The connecting body connected to the traction drive vehicle always maintains the same posture both when the soil loading section is being lifted up and when it is being lowered. There should be no problem in connecting the traction drive vehicle and the main spreading vehicle.

This provides an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the top soil spreading vehicle according to the present invention, FIG. 2 is a plan view showing the embodiment, FIG. 3 is an enlarged sectional view taken along line I-I in FIG. 4 is an enlarged sectional view taken along the line 1 and 2 in FIG. 3, FIG. 5 is a perspective view showing the power transmission system in the embodiment, and FIGS. 6 to 8 are operation explanations showing the operation of the embodiment. It is a diagram. 1... Traction drive vehicle, 3... Link body,
4...Soil spreading vehicle, 5...Vehicle frame, 7
...Axle, 8...Rolling wheel, 11...
...Soil loading section, 14...Belt conveyor, 16...Upper beater, 17...Lower beater, 62...Second hydraulic pressure Cylinder, 63・
...First hydraulic cylinder, 64, 65...
・Connection shaft, 66-... Rotating arm, 67...
Support shaft, 69, 70...Connection shaft, 74...
・Connection body, 75, 76...Connection shaft.

Claims (1)

[Claims] 1. A vehicle comprising a vehicle body towed by a traction drive vehicle, a top loading section provided on the vehicle body, and means for discharging top soil loaded on the top loading section to the rear of the vehicle body. In the upper scattering vehicle, a pair of left and right rotating arms are respectively disposed on the left and right sides of the vehicle body and are rotatably supported with an intermediate portion on the vehicle body via a support shaft extending in the width direction of the vehicle body; Left and right 1, each of which is rotatably connected to one end of the rotary arm or the cylinder body, and the other to the vehicle body via a connecting shaft extending in the width direction of the vehicle body.
a pair of first hydraulic cylinders, a transfer wheel rotatably supported at the other end of the rotary arm via an axle, and one end of each is attached to the front end of the vehicle body, and a transfer wheel is provided at the front end of the vehicle body in the width direction of the vehicle body. a pair of upper and lower link bodies rotatably connected via an extending connecting shaft; and a pair of upper and lower link bodies rotatably connected to the other ends of these link bodies through respective connecting shafts extending in the width direction of the vehicle body. Further, a connecting body connected to the traction drive vehicle, one of the tip end of the rond or the cylinder main stock part is attached to the upper one of the pair of upper and lower link bodies, and the other is attached to the vehicle body,
a second hydraulic cylinder rotatably coupled via a coupling shaft extending in the width direction of the vehicle body; A top soil spreading vehicle characterized in that line segments connecting the two connecting shafts constitute a four-node rotating chain in the form of a parallelogram.