KR101629616B1

KR101629616B1 - Assembly for automatic cover of dump truck

Info

Publication number: KR101629616B1
Application number: KR1020150145529A
Authority: KR
Inventors: 김도근
Original assignee: 유한회사 강성산업개발; 유한회사 대성환경
Priority date: 2015-10-19
Filing date: 2015-10-19
Publication date: 2016-06-17

Abstract

In the present invention, the one-side lid is composed of a first lid and a second lid, and the first lid is directly connected to the rotation drive shaft of the motor to rotate, and the second lid is connected to the first lid by a chain The first lid includes a first lid shaft which is directly coupled to the rotary drive shaft of the motor and is coupled to and supported by a bearing fixedly installed at a side of the loading side of the dump truck at regular intervals, And the other end is constituted by a first lid connecting rod which is arranged in parallel with the first lid shaft at a predetermined interval to constitute a second lid shaft bearing of the second lid and a second lid connecting rod which is formed by the first lid shaft and the first connecting rod, A panel coupled to the upper portion of the body; The second lid includes a second lid shaft inserted and supported by a second lid shaft bearing of the first lid linkage formed at regular intervals, a second lid shaft which is strong on the second lid shaft on the one side and strong on the transverse linkage on the other side, And a panel coupled to an upper part of the squeegee body formed by the second lid shaft, the transverse linkage and the second lid linkage, and the second lid linkage is provided on the second lid shaft to interlock with the rotational movement of the first lid. And an elastic joint cover attached to a joint connecting the first cover and the second cover, wherein a chain connecting the fixed sprocket and the rotary sprocket coupled to the first cover shaft is coupled, The panel is composed of a carbon fiber-reinforced plastic sheet and a reinforcing rim surrounding the rim, and is attached to the upper part of each link by a piece.

Description

ASSEMBLY FOR AUTOMATIC COVER OF DUMP TRUCK [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic lid for covering an upper portion of a dump truck to prevent dust or the like from being blown while traveling, and a lid structure for a dump truck which is improved in lightness and hermeticity by replacing a conventional cloth.

When aggregate is loaded on a dump truck, it is blown away by the wind in the running, which causes environmental problems and poses a threat to traffic safety.

Conventionally, in order to prevent this, a lid has to be attached to a dump truck including a cargo truck. Various types of lids are installed and operated for this purpose.

As shown in FIG. 1, the automatic opening / closing apparatus for a two-stage folding lid for a lorry loading box according to the Utility Model Registration No. 20-0264863 is disclosed in Japanese Laid-Open Patent Application No. 10-1109116. The drive shaft 1 made of a rod is rotatably supported by several hinges 1a and a motor 10 serving as a power source is connected to the front of the drive shaft 1 The intermediate shaft 2 is axially rotatably supported by left and right outer frame members 4 and 4a on the driving shaft 1 and a sprocket 8 is provided on the front side of the intermediate shaft 2 And a fixed shaft 3 constituting an outer lid of the lid is provided on the outer side of the intermediate shaft 2 so as to be rotatable with a spindle 7 of the drive shaft 1 by several external parts And the drive shaft 1 and the intermediate shaft 2 are connected to each other as a pair of left and right flat- A vertical pole 5 made of a flat iron type is connected between the wall fixing bars 4 and 4a and the outer wall fixing bars 4 and 4a. One side of the vertical pole 5 is fitted with an intermediate shaft 2, And the other end of the fixed shaft tube 5b welded integrally with the drive shaft 1 in a state in which the drive shaft 1 is fitted is welded and fixed to the fixed shaft tube 5b.

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Such a structure has the convenience of automatic opening of the lid by a switch operation, but the shielding function of the lid is made by a package composed of cloth attached to the frame, and the package is connected in a bundled form The following problems have been encountered.

First, although the fabric made of cloth is lightweight, it tears easily when it is loaded with aggregates and has a short life span.

Second, the gap formed at the connection between the frame and the package causes the discharge of the non-product during driving.

Third, in the structure in which the lid is folded in two stages, the lid constituting one lid is divided into the first lid and the second lid 2. Therefore, when the lid is partially damaged, the whole part must be replaced, Some of the vehicles run in a state of being damaged, so that there is a problem that the purpose of preventing the shattering can not be achieved.

It is an object of the present invention to solve the problems of the conventional cover structure for a dump truck as described above and to provide a light and strong cover panel structure which can replace an existing bag constituting the cover, And to provide a cover structure for a dump truck that minimizes the maintenance cost through partial replacement when some damage is caused.

The present invention relates to a structure in which a lid of a left-right symmetrical type is capable of covering a loading box of a dump truck, the one lid comprising a first lid and a second lid, The second lid is connected to the first lid by a chain so as to be interlocked with the first lid. The first lid is directly connected to the rotary drive shaft of the motor and is fixed to the side of the loading side of the dump truck at regular intervals A first lid shaft which is coupled to and supported by a bearing, one side of which is fixed to the first lid shaft, and the other side of which is a second lid shaft bearing of the second lid, And a panel coupled to an upper part of the squeegee body formed by the first cover shaft and the first linkage; The second lid includes a second lid shaft inserted and supported by a second lid shaft bearing of the first lid linkage formed at regular intervals, a second lid shaft which is strong on the second lid shaft on the one side and strong on the transverse linkage on the other side, And a panel coupled to an upper part of the squeegee body formed by the second lid shaft, the transverse linkage and the second lid linkage, and the second lid linkage is provided on the second lid shaft to interlock with the rotational movement of the first lid. And an elastic joint cover attached to a joint connecting the first cover and the second cover, wherein a chain connecting the fixed sprocket and the rotary sprocket coupled to the first cover shaft is coupled, The panel is composed of a carbon fiber-reinforced plastic sheet and a reinforcing rim surrounding the rim, and is attached to the upper part of each link by a piece.

Further, the present invention is characterized in that the elastic rubber sheet is pressed and formed inside the carbon fiber-reinforced plastic sheet in constituting the panel.

The present invention relates to a panel structure in which a panel made of a light and strong carbon fiber reinforced plastic sheet is used as a lid, a connection structure in which adhesion with a panel is enhanced, and a structure in which a joint cover is covered, thereby enhancing tightness and effectively preventing occurrence of artefacts The durability can be improved, and the maintenance cost can be reduced by replacing the panel unit in case of partial damage.

In addition, the resilient rubber sheet is press-formed inside the carbon fiber-reinforced plastic sheet of the panel, so that the impact due to the direct contact between the carbon fiber-reinforced plastic sheet and the load can be reliably absorbed to enhance the durability.

Figure 1 shows the structure of a dump truck lid automatic lid device
FIG. 2 is a view showing the structure of the automatic lid of the dump truck loading box according to the present invention.
Fig. 3 is a schematic view of the coupling structure of the automatic lid loading device
Fig. 4 is a view showing an embodiment of a panel according to the present invention
Fig. 5 is a perspective view of the coupling structure of the panel according to the present invention

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 illustrate a structure of a dump truck loading lid automatic lid apparatus according to the present invention. The present invention is a structure in which a lid of a left-right symmetrical type can cover a loading box of a dump truck, The first lid is directly connected to the rotary drive shaft 31 of the motor 30 and rotates while the second lid 20 is connected to the chain 40 so as to be interlocked with the drive shaft. To a two-stage automatic lid structure for a dump truck,

The first lid 10 is directly connected to the rotary drive shaft 31 of the motor 30 and is coupled to the first lid shaft 10 And the other side constitutes a second lid shaft bearing 12b of the second lid 20. The first lid 11 and the second lid 20 are fixed to the first lid shaft 11 at predetermined intervals, And a panel 13 coupled to an upper part of the squeegee body formed by the first cover shaft 11 and the first linkage 12. The first cover shaft 12,

The second lid 20 includes a second lid shaft 21 inserted into and supported by the second lid shaft bearing 12b of the first lid link 12 formed at regular intervals and one end of the second lid shaft 21 And the other end is connected to the second lid shaft 22 at a predetermined interval by being juxtaposed to the second lid shaft 23. The second lid connecting rod 22 is connected to the second lid shaft 21 and the transverse link 23, And a panel 24 coupled to an upper part of the squeegee body formed by the connecting rod 22. The fixed sprocket is coupled to the second cover shaft so as to be interlocked with the rotation motion of the first cover, A chain (40) connecting the kit is engaged.

And an elastic joint cover attached to a joint portion connecting the first lid 10 and the second lid 20. [

The first lid shaft 11 is inserted into the bearing 50 while performing the main frame function of the first lid and rotatably provided. The first lid shaft 11 is connected to the drive shaft 31 of the motor 30 at the connection portion and rotates.

One end of the first cover connecting rod 12 is a fixed portion 12a which is fastened to the first cover shaft 11 and the other end is a second lid shaft bearing 12 of the second lid 20.

In the illustrated embodiment, the fixing portion 12a and the second lid shaft bearing 12 are formed in a left-right shape in the form of a hub, and the first lid shaft is inserted and fixed in the fixing portion 12a, The cover shaft bearing 12 is joined in a treatment structure so that it can freely rotate in a state in which the second cover shaft is inserted. The body portion connecting the fixing portion 12a and the second lid shaft bearing 12 is formed at the tangential position of both hubs and the second lid shaft bearing 12 is formed in a stepped shape in the shape of " The first cover and the second cover panel, which will be described later, can be configured to have the same standard, and the cover connecting rods 12 and 22 can be supported by the support body It is possible to perform the two-stage joint motion of the first lid and the second lid even when the panels are combined.

The second lid shaft 21 is inserted into the second lid shaft bearing 12 while performing the main frame function of the second lid and configured to rotate with the first lid.

The second cover shaft 21, the second cover link 22 and the transverse link 23 constituting the second cover constitute a frame having a grid-like space by being strong, and the rotational power is fixed to the second cover shaft And a chain 40 connecting the sprocket 41 and the rotary sprocket 42 coupled to the first cover shaft.

That is, the first lid shaft connected to the drive shaft rotates in the forward and reverse directions to move the first lid toward the upper portion of the loading box or to the side face to perform the motion of opening and closing the lid. When the rotation of the first lid rotates reversely The loading and unloading operation is performed by interlocking the first lid and the second lid as described above.

The joint cover 60 is provided to block the gap generated during the joint movement of the first and second covers to block the exposure of the inner aggregate. The joint cover 60 is composed of a vinyl or rubber sheet of a tough material, 2 to the reinforcement rim 24b of the panel constituting the lid, thereby providing a function of performing the lid shut-off function without interfering with the joint motion of the first lid and the second lid.

In the present invention, as shown in Fig. 4 and Fig. 5, the panel includes a carbon fiber-reinforced plastic sheet (or a sheet- 24a and a reinforcing rim 24b that surrounds the rim and is attached to the upper portion of each link by a piece 24d.

The carbon fiber-reinforced plastic sheet (24a) is a material reinforced with a carbon fiber sheet as a plastic material, and is advantageous in that it uses a conventional cover without increasing the driving load of the motor and the weight of the vehicle due to its light and tough characteristics.

The carbon fiber-reinforced plastic sheet 24a can be used solely in the form of a laminate of two to three layers of carbon fiber sheets, and the elastic rubber sheet 24c can be pressed inside the carbon fiber-reinforced plastic sheet.

The structure in which the elastic rubber sheet 24c is compressed has a function of efficiently protecting the carbon fiber-reinforced plastic sheet 24a from the impact caused by the fall aggregate in the vibration impact occurring during traveling and the aggregate loading process. That is, the shock caused by the falling objects is liable to be applied to the panel during the stacking process of the aggregate, and the flow of air generated in the running process imposes vibration on the thin plate panel, However, when the elastic rubber sheet 24c is formed by pressing on the inner surface of the elastic rubber sheet 24c, the shock absorption is relieved to enhance the durability.

10: First cover
11: first cover shaft 12: first cover mount
12a: Fixing portion 12b: Second lid shaft bearing 13: Panel
20: Second cover
21: second lid shaft 22: second lid link 23: transverse linkage;
24: Panel
24a: carbon fiber reinforced plastic sheet 24b: reinforcing rim 24c: elastic rubber sheet
30: Motor
31:
40: Chain
41: Fixing sprocket 42: Rotating sprocket
50: Bearing
60: joint cover

Claims

The first lid includes a first lid 10 and a second lid 20. The first lid includes a rotary drive shaft (not shown) of the motor 30, 31, and the second lid 20 is connected by a chain 40 so as to be interlocked with a drive shaft, the two-step automatic lid structure for a dump truck comprising:
The first lid 10 includes a first lid shaft 11 directly connected to the rotary drive shaft 31 of the motor 30 and coupled to the bearing 50 fixedly installed at a predetermined interval on the loading side of the dump truck, One side of the second lid 20 is a fixed portion 12a which is fastened to the first lid shaft 11 and the other side is a second lid shaft bearing 12b of the second lid 20, And a panel 13 coupled to an upper part of the squeegee body formed by the first cover shaft 11 and the first linkage 12 and the panel is made of a carbon fiber reinforced plastic sheet 24a And a reinforcing rim 24b that surrounds the rim and is attached to the upper part of each link by a piece 24d;
The second lid 20 includes a second lid shaft 21 inserted and supported by the second lid shaft bearing 12b of the first lid link 12 formed at regular intervals, And the other side is connected to the second lid shaft 22 at a predetermined interval by being tightly connected to the second lid shaft 23 and the second lid connecting shaft 22 is connected to the second lid shaft 21 and the transverse link 23 and the second lid link 23 22; < / RTI >
A chain (40) connecting a fixed sprocket coupled to the second cover shaft and a rotating sprocket coupled to the first cover shaft to interlock with the rotational movement of the first cover;
And an elastic joint cover attached to a joint portion connecting the first lid (10) and the second lid (20)
Wherein the elastic rubber sheet (24c) is pressed and formed inside the carbon fiber-reinforced plastic sheet (24a) constituting the panel (24).

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