JPS6147250B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roadbed peeling and crushing device that can very effectively peel off a roadbed and can efficiently dismantle the roadbed by breaking or crushing it.

Conventionally, breakers have been used exclusively to dismantle roadbeds made of asphalt, concrete, etc., but when they are used, they make a lot of noise and cause pollution. For this reason, recently, a bucket-shaped roadbed stripping device has been developed that makes no noise during roadbed stripping. It is true that the roadbed can be peeled off without noise if this is used, but it still requires a large hydraulic drive force and is often peeled off in the form of large chunks of roadbed, such as several tatami mats. It was bulky to load, and had the disadvantage of being extremely inefficient as it could not carry a large amount of cargo. Therefore, in reality, the large block of roadbed is often broken down into smaller pieces using breakers and the like before being loaded. In addition, recently there are roadbed crushing devices that crush the roadbed with scissor-like devices.
This not only required a large amount of hydraulic driving force, but also had drawbacks such as being difficult to dismantle in small pieces.

Therefore, the present invention fixes the bases of two arc-shaped side claws to the outer casing, arranges an arc-shaped central claw between the two side claws, and pivotally supports the base of the center claw on the outer casing. By making the central pawl swingable by a hydraulic cylinder and by forming the lower surface of the central pawl as a sharp point, or by fixing an arcuate plate between the lower surfaces of the two side pawls, This eliminates the above-mentioned drawbacks, as it is possible to peel off the road very well, and also to break or crush the roadbed for efficient disassembly.

The structure will be explained with reference to the drawings.

Reference numeral 1 denotes an outer casing, which has a substantially right triangular shape or an inverted L shape when viewed from the side, and is hollow inside. An opening 2 is provided below the front side of the outer casing 1 (on the right side in FIG. 5, etc.). Reference numeral 3 denotes a side claw, which has a semicircular shape of approximately 1/2 when viewed from the side, and a wedge-shaped claw portion 3a is provided at the tip thereof. The bases of the claws 3, 3 on both sides are inserted into the opening 2 and fixed to the side wall of the outer casing 1. That is, the bases of the two side claws 3, 3 are fixed to both side walls of the outer casing 1 at an appropriate interval. More specifically, the base of the side claw 3 is fixed to a collar inserted into a shaft rod 4 fixed to two openings of the outer casing 1, and the collar is fixed to both side walls of the outer casing 1. . The upper surface of the side claw 3 (inner surface side of the arcuate portion) may be formed as a sharp-pointed portion 3b (see FIGS. 1 to 3, etc.), or the upper surface of the side claw 3 (inner surface side of the arcuate portion (inner surface side of the part) may be formed flat (see Fig. 8). Side claws 3, 3 in which the sharp points 3b, 3b are formed
When viewed as a cross section, both outer surfaces become vertical surfaces and sharpened portions 3b, 3b are formed (the first
2, etc.), or both inner surfaces thereof are vertical surfaces to form sharpened portions 3b, 3b (see FIG. 3). Reference numeral 5 denotes a central claw, which has a semicircular shape of approximately 1/2 when viewed from the side, and has a wedge-shaped claw portion 5a at its tip, and the lower surface of the central claw 5 (the outer surface side of the arcuate portion) has a sharp point. It is formed as a sharp-pointed portion 5b. The base of the central pawl 5 is inserted into the opening 2 and is pivotally supported by the shaft 4, so that the central pawl 5 is configured to be swingable. More specifically, the base of the central pawl 5 is fixed to a collar 5c that is loosely inserted into the shaft rod 4. One end (lower end) of the swing arm 6 is fixed to the collar 5c.
That is, one end of the swing arm 6 is fixed to the base of the central claw 5. 7 is a hydraulic cylinder, outer casing 1
A cylinder rod 8 is built in, the rear side of which is pivotally supported by the outer casing 1, and the front side is provided with a cylinder rod 8 that moves forward and backward as appropriate by hydraulic pressure, and the tip of the cylinder rod 8 is connected to the other end (upper end ), and as the cylinder rod 8 slides back and forth, the center claw 5 swings via the swing arm 6. When the central pawl 5 is closed (see the solid line position in Figures 1 and 2, the solid line position in Figure 3, the dotted line position in Figures 5 and 6, etc.), the side pawls 3, 3 and the central pawl 5 When viewed as a cross section at an appropriate location, the central claw 5 is configured to bite into the interior of the claws 3, 3 on both sides (solid line in Figure 2).
(See Figure 3 solid line position, etc.) An arcuate plate 9 is fixed between the lower surfaces (outer surface side of the arcuate portion) of the claws 3, 3 on both sides (see FIGS. 1, 2, etc.). Further, the arc plate 9 may not be provided (see FIGS. 3 and 8).

In the figure, 10 is the shovel loader main body, 11 is the arm, 12 is the sub-arm, 13 is the mounting plate, and its outer casing 1
is fixed to. 14, 15, and 16 are first, second, and third hydraulic cylinders.

Next, the effects will be explained.

First, in the invention of claim 1, the bases of the two arc-shaped side claws 3, 3 are fixed to the outer casing 1, and the arc-shaped central claw 5 is installed between the two arc-shaped side claws 3, 3.
, the base of the central claw 5 is pivotally supported on the outer casing 1,
By making the central pawl 5 swingable by a hydraulic cylinder 7 and by forming the lower surface of the central pawl 5 as a sharp-pointed portion 5b, firstly, it is possible to remove the roadbed made of asphalt, concrete, etc. extremely well. Secondly, the roadbed can be broken or crushed to enable efficient demolition.

To explain the operation and effect in detail, as shown in FIG. 9, the shovel at the end of the sub arm 12 of the shovel loader is replaced with the roadbed peeling and crushing device of the present invention, and the tips of the claws 3 on both sides and the center claw 5 are aligned. Then, the tip side is pushed into the inner surface of the roadbed made of asphalt, concrete, etc. (see Fig. 5), and then the cylinder rod 8 is moved forward and slid appropriately by the hydraulic drive of the hydraulic cylinder 7, and the swing arm 6 is moved. When the central pawl 5 is rotated counterclockwise in the same figure as shown in FIG. 6, the tip of the central pawl 6 is The roadbed rises and the strong reaction force is used to make it extremely easy to peel off the roadbed. Therefore, the conventional type of peeling device that simply uses the entire peeling device only applies a peeling force that is raised by the second hydraulic cylinder 15, third hydraulic cylinder 16, etc. of the shovel loader, and cannot fully utilize this force. However, in the present invention, since the reaction force of the claws 3, 3 on both sides can be utilized, the roadbed can be easily peeled off even with a small amount of hydraulic pressure.

After peeling off, as shown in Fig. 7, the upper surface sides of the claws 3 on both sides support the lower surface of the roadbed made of asphalt, concrete, etc., and the sharp points on the lower surface side of the center claw 5 When the center pawl 5 is rotated clockwise in the figure as shown in FIG. 7 through the swing arm 6 while being pressed from above the roadbed by the shaped portion 5b, the side pawls 3, 3 and the sharp-pointed portion 5b of the central pawl 5 can easily break or crush the roadbed. To explain this in detail, since the sharp-pointed portion 5b is formed on the lower surface of the central pawl 5, it can be made to bite into the roadbed with a small amount of hydraulic driving force, and it can be easily broken.
The roadbed is supported by the upper surfaces of both side pawls 3, 3, and the force of the sharp portion 5b acts as a concentrated load in the middle of the roadbed. The shearing action caused by the shearing force (force) makes it possible to crush the material very well. As a result, the roadbed stripping and crushing device of the present invention can be used to disassemble it into small pieces, eliminating the need to further dismantle large blocks of roadbed material using a breaker, etc. as in the conventional method, and reducing the bulk and bulk of loading onto dump trucks. can be loaded extremely efficiently.

Next, in the invention of claim 2, in the structure of the invention of claim 1, by fixing the arcuate plate 9 between the lower surfaces of the two side claws 3, 3, the side claws 3, 3 are fixed. , 3 and the arc-shaped plate 9, it is similar to a conventional bucket cart, and it is possible to easily load crushed or crushed roadbed lumps such as concrete into a dump truck, etc. By placing the lumps on the roadbed and swinging the central pawl 5, they can be crushed into even smaller pieces by pressing with the sharpened portions 5b. As described above, the roadbed stripping and crushing apparatus of the present invention can perform a series of operations such as stripping, breaking or crushing, and loading of a roadbed made of concrete, etc., and can perform extremely efficient roadbed stripping and crushing and loading operations.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the present invention, Fig. 2 is an end view taken along the line - - in Fig. 1, and Fig. 3 is a side claw of another embodiment.
FIG. 4 is a partially longitudinal front view of the present invention; FIGS. 5 to 7 are sectional views showing the working state of the present invention; and FIG. 8 is a view of both sides of another embodiment. FIG. 9 is a side view of the present invention attached to a shovel loader. 1... Outer casing, 3... Side claw, 5... Center claw, 5
b...Shaped portion, 7...Hydraulic cylinder, 9...
arcuate plate.

Claims (1)

[Claims] 1. The bases of the two arc-shaped side claws are fixed to the outer casing,
An arc-shaped central pawl is arranged between the pawls on both sides, the base of the central pawl is pivotally supported on the outer casing, the central pawl is made swingable by a hydraulic cylinder, and the lower surface of the central pawl is fitted with a sharp point. A roadbed peeling and crushing device characterized by being formed as a. 2 Fix the bases of the two arc-shaped side claws to the outer casing,
An arc-shaped central pawl is arranged between the pawls on both sides, the base of the central pawl is pivotally supported on the outer casing, the central pawl is made swingable by a hydraulic cylinder, and the lower surface of the central pawl is fitted with a sharp point. A roadbed peeling and crushing device characterized in that an arcuate plate is fixed between the lower surfaces of the two side pawls.