JP3461795B2 - Hopper device in asphalt finisher - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper device for an asphalt finisher capable of adjusting a hopper width.

[0002]

2. Description of the Related Art A small-scale asphalt finisher as shown in FIG. 3 needs to be adjusted to the vehicle width size of a dump truck for carrying a composite material which comes into contact with a roller 2 pivotally supported at the front end of a paving machine vehicle 1. A hopper device 3 provided on the front side of the paving machine vehicle 1 in order to cope with construction at the site.
The width of the hopper can be changed.

For example, the hopper device 3 shown in FIG. 3 is a folding type, and is supported on both sides of the bar conveyor 4 via a bar conveyor 4 which conveys the mixture in the hopper to the rear of the paving machine vehicle. Each of the side plates 6 is rotatably supported by a shaft 5, and the outermost side plate 6 is attached to a hinge part 7 at the lower end thereof.
After being folded inward with respect to the fulcrum, the bottom plate 8 which can be rotated upward together with the side plate 6 is erected with another hinge 9 as a fulcrum, and these are used as new side plates.

In such a foldable hopper device 3, it is necessary to make the height dimension H of the side plate portion 6 smaller than the width dimension W of the bottom plate portion 8, and the hopper height is limited.

Further, as shown by the solid line, the surface of the side plate portion 6 which is inside when folded and is soiled with the mixture is reversed to the outside when expanded as shown by the chain double-dashed line. It is not preferable.

Further, although the work of folding and unfolding is done manually by the operator, such work is labor-intensive, and the hands are not caught in such work. It takes time because it is a careful work.

In addition, the portion where the side plate portion 6 and the bottom plate portion 8 are connected by the hinge portion 7 can be formed in an arc cross section or the like because the side plate portion 6 and the bottom plate portion 8 need to be flatly folded. No, the hopper shape is limited, and it is difficult to weave a box-shaped design.

[0008]

As described above, in the hopper device 3 of the conventional asphalt finisher, in connection with folding the side plate portion 6 and the bottom plate portion 8, much labor and time are required for adjusting the hopper width. There are various problems, such as being expensive.

The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the problems such as the labor and time required for adjusting the hopper width.

[0010]

According to the invention described in claim 1 , a first hopper constituent member and a first hopper constituent member are provided.
The second hopper slidably provided in the hopper width direction with respect to
And the second hopper to the first hopper component.
An actuator for moving Tsu path component, and a guide rail for guiding the sliding of the first hopper component and a second fitted to each other on the lower surface of the hopper component second hopper component Asphalt finisher equipped
In a hopper device, and the actuator
Second hopper component to first hopper component
The hopper width can be easily changed by moving the to the hopper width direction.
Adjusted to, this time, by providing a guide rail on the lower surface of each hopper component, while smoothly guided by the guide rail the movement of the second hopper component, to flatten the upper surface of each hopper component To be able to

[0011] The invention described in claim 2, the guide of the first hopper component and a second hopper structure member in the hopper device of the asphalt finisher of claim 1, wherein, being relatively moved and adjusted by an actuator The stopper is provided so as to be inserted into the rail, and the stopper reliably prevents the movement of the second hopper constituent member after the movement of the first hopper constituent member is adjusted by the actuator.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. The same parts as those of the conventional asphalt finisher are designated by the same reference numerals.

As shown in FIG. 2, it is necessary to match the vehicle width size of the dump truck for carrying a composite material which comes into contact with the roller 2 pivotally supported at the front end of the paving machine vehicle 1, and this corresponds to the construction on a narrow site. For this purpose, a slide type hopper device 10 capable of changing the hopper width on the front side of the paving machine vehicle 10 is provided.
Is provided.

The slide type hopper device 10 is provided symmetrically via a bar conveyor 4 which conveys the mixed material in the hopper to the rear of the paving machine vehicle, and the left and right parts are similarly moved.

FIG. 1A shows only one side of the hopper device 10. In the hopper device 10, the second hopper component 12 is slidable in the hopper width direction with respect to the first hopper component 11. It is provided in.

The first hopper component 11 is rotatably supported at its inner end side by a spindle 13 on the vehicle body of the paving machine vehicle 1 and is provided between the vehicle body and a hydraulic cylinder (not shown). It is rotated in the up and down direction.

That is, the first hopper component 11 is supported on the vehicle body at both left and right sides of the bar conveyor 4 via the bar conveyor 4 for conveying the mixture in the hopper to the rear of the paving machine vehicle. Each is rotatably supported by 13. This shaft support structure is similar to the conventional asphalt finisher shown in FIG.

The first hopper constituent member 11 has a hinge at a front end portion, which is a side for receiving a mixture from a dump truck, with respect to a bottom plate portion 14 rotatably supported on the vehicle body by the support shaft 13. The front plate portion 16 is rotatably attached by the portion 15 and the bottom plate portion
This front plate portion 16 is locked in a horizontal state by a support member 17 welded to the lower surface of 14 and projected forward from the bottom plate portion 14. A back plate portion 18 is provided at the rear end of the bottom plate portion 14.

The second hopper constituting member 12 is provided with a bottom plate portion 21 slidably laid on the upper surface of the bottom plate portion 14 of the first hopper constituting member 11, and the first end portion of the bottom plate portion 21 is provided at the first end. Similarly to the hopper component 11, the front plate 23 is rotatably attached by the hinge 22 and is locked on the upper surface of the front plate 16 of the first hopper component 11. Further, a side plate portion 24 is integrally provided on one side portion of the bottom plate portion 21, and a back end portion of the first hopper component 11 inside the back plate portion 18 is provided at a rear end portion of the bottom plate portion 21. The plate portion 25 is integrally provided.

Further, the first hopper constituent member 11 and the second hopper constituent member 11
On the lower surfaces of the bottom plate portions 14 and 21 of the hopper component 12, the guide rails 31 and 32 which are fitted to each other and guide the sliding of the second hopper component 12 are parallel to each other in the width direction of the hopper. It is installed in.

Guide rail 31 of first hopper component 11
Has a concave cross section and is welded directly to the lower surface of the bottom plate portion 14 of the first hopper component 11.

On the other hand, the guide rail 32 of the second hopper component 12 is formed in a concave cross section, and the lower surface of the bottom plate portion 21 of the second hopper component 12 via the mounting plate 33 welded to the end face. It is welded to.

As shown in FIG. 1B, the bottom plate portion 21 of the second hopper component 12 and the guide rail 32 below the bottom plate portion 21.
An insertion gap 34 for inserting the bottom plate portion 14 of the first hopper component 11 is provided between and.

The guide rail 32 located below the bottom plate 14 of the first hopper component 11 via the insertion gap 34.
Also has a function of preventing the bottom plate portion 21 of the second hopper component 12 from rising.

Further, the bottom plate portion of the first hopper constituent member 11
Between the bottom plate portion 21 of the second hopper component 12 and the second
An actuator 35 is provided which moves the bottom plate portion 21 of the hopper component 12 by the guide rails 31 and 32.

That is, as shown in FIG.
This actuator 35 uses an electric cylinder powered by electricity or a hydraulic cylinder powered by hydraulic pressure, and the actuator body 36 is connected to the first hopper component 11
While being pivotally supported on the lower surface of the bottom plate portion 14 of the second hopper through the bracket 37, the tip of the operating rod portion 38 protruding from the actuator main body portion 36 is mounted on the lower surface of the bottom plate portion 21 of the second hopper component 12 through the bracket 39. To connect.

As the actuator, a feed screw mechanism or a pinion rack mechanism rotated by an electric motor or a hydraulic motor may be used to move the second hopper component 12.

As shown in FIGS. 1 (a) and 1 (b), the guide rail 31 of the first hopper component 11 is provided with one stopper insertion hole 41, and further the second hopper component. The guide rail 32 of the member 12 has a plurality of stopper insertion holes.
42 has been drilled.

A stopper insertion hole 41 formed in the guide rail 31 of the first hopper component 11 and a plurality of stopper insertion holes 42 formed in the guide rail 32 of the second hopper component 12 are formed. The movement amount of the second hopper constituent member 12 is adjusted by the actuator 35 so that one of them is aligned, and the pin-shaped stopper 43 is inserted into these stopper insertion holes 41, 42.

The stopper 43 is a metallic rod material, and a grip portion 44 to be gripped by an operator is integrally formed by bending one end thereof endlessly.

Next, the operation of this embodiment will be described.

First, the stopper 43 inserted into each of the guide rails 31 and 32 is removed, and the actuator 35 guides the bottom plate portion 21 of the second hopper constituent member 12 to the bottom plate portion 14 of the first hopper constituent member 11. The hopper width can be easily adjusted by moving with the guide of the rails 31 and 32.

For example, as shown in FIG. 1, when the hopper width is maximized by maximally pushing out the actuating rod portion 38 of the actuator 35, it is easier to supply the mixture material than a large-sized mixture material dump truck. Can be received.

Further, the operating rod portion 38 of the actuator 35
By shrinking the hopper, the width of the hopper can be reduced, enabling construction on a narrow site.

At this time, the two guide rails 31, 32 are
The bottom plate portion 14 of the first hopper component 11 is guided so that the bottom plate portion 21 of the second hopper component 12 can move smoothly while maintaining the parallel state and in close contact.

Further, the first hopper constituent member 11 and the second hopper
By providing the guide rails 31 and 32 on the lower surfaces of the bottom plate portions 14 and 21 of the hopper constituent members 12, respectively, the hopper constituent members 11 and 12 are provided.
Since the upper surface of the composite material can be made flat and there is no obstacle to the composite material put into the interior, it is possible to prevent the composite material from being caught.

When the amount of movement of the second hopper component 12 with respect to the first hopper component 11 is determined, the stopper 43 is inserted through the stopper insertion holes 41 and 42 of the guide rails 31 and 32, respectively. The stopper 43 surely prevents the movement of the hopper constituent member 12.

Such a slide type hopper device 10 is
Since the heights of the back plate portion 18, the side plate portion 24, and the back plate portion 25 can be freely set, there is no limit to the height of the hopper as in the folding hopper device, and the inner surface soiled with the mix material In addition, there is no external problem of flipping over to the outside, and the actuator 35 allows the hopper width to be easily adjusted in a stepless manner, which does not require effort or time to adjust the hopper width, and the hopper shape can be arbitrarily formed. For example, it is also possible to form an arc shape from the bottom plate portion 21 to the side plate portion 24.

[0039]

According to the invention described in claim 1 , the actuator is
The second hopper with respect to the first hopper constituent member by the eta
By moving the components in the hopper width direction, the hopper width
Staff can be adjusted easily, and it takes effort and time to adjust the hopper width.
Various types of folding hopper devices
The problems of can be improved. At this time, by providing guide rails on the lower surfaces of the first hopper constituent member and the second hopper constituent member, the movement of the second hopper constituent member can be smoothly guided by the guide rails and the upper surface of each hopper constituent member. Can be flattened, and the catching of the mixture can be prevented.

According to the second aspect of the invention, the stopper can surely prevent the movement of the second hopper constituent member after the actuator is moved and adjusted with respect to the first hopper constituent member.

[Brief description of drawings]

FIG. 1A is a perspective view showing an embodiment of a hopper device for an asphalt finisher according to the present invention,
(B) is a sectional view of a guide rail installation portion of this hopper device, and (c) is a sectional view of an actuator installation portion of this hopper device.

FIG. 2 is a front view of the above asphalt finisher.

FIG. 3 is a front view of a conventional asphalt finisher.

[Explanation of symbols]

11 First hopper component 12 Second hopper components 31, 32 Guide rail 35 actuator 43 Stopper

Claims (2)

(57) [Claims] 1. A first hopper constituent member and a first hopper constituent member slidable in the hopper width direction.
The second hopper component provided on the first hopper and the second hopper component with respect to the first hopper component.
And a guide rail that is provided on the lower surfaces of the first hopper component and the second hopper component and that are engaged with each other to guide sliding of the second hopper component. Tosu
Hopper device in the Rua scan Middelfart finisher. Wherein the asphalt according to claim 1, characterized by including a stopper which is inserted into the guide rails of the first hopper component and a second hopper components which are relatively moved and adjusted by an actuator Hopper device in finisher.