JPS5930003Y2 - concrete crusher - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an apparatus for peeling and crushing concrete 1 to concrete 1 of a paved road surface from a roadbed.

Concrete 1/Concrete 1-1 when repairing the paved road surface
・The roadbed is broken into small pieces and removed from the roadbed. Conventionally, the equipment used to perform this work was, for example,
As disclosed in Japanese Patent No. 4882, it has a structure in which the concrete roadbed is grasped and the concrete roadbed is broken into small chunks by raising the bar itself.

In order to increase the efficiency of breaking and crushing concrete rivers and roadbeds, instead of forcing the tip of the breaking member into the underside of the concrete roadbed that is in close contact with the roadbed each time breaking and breaking,
First, strain the tip of the crushing member onto the underside of the concrete roadbed, and hook the tip of the crushing member onto the concrete 1 ~ roadbed for approximately 50 minutes.
The concrete roadbed is then lowered onto the roadbed again to form a gap between the lower surface of the concrete roadbed and the roadbed, and the concrete roadbed is removed from the tip of the crushed member at the time of breaking and crushing. After making it easy to insert into the lower surface, only the breaking and crushing work is performed continuously.

However, since a force of at least 10 tons or more is required to pull up the concrete roadbed, it is difficult for small, lightweight machines to float due to the reaction force when pulling up the concrete roadbed and carry out peeling work on the concrete roadbed. It had the disadvantage that it could not be done.

The present invention eliminates the drawbacks of the conventional device by improving the above-mentioned conventional device, and makes it possible to carry out peeling and crushing of concrete roadbeds even with a lightweight and small machine.The following is an explanation of an embodiment of the present invention based on the drawings. Then, reference numeral 1 denotes a crushing member which is pivotally attached to the tip of an arm that is swingably supported on an elevating and rotating boom attached to the traveling vehicle body, and which is rotatably operated in the vertical direction by a hydraulic cylinder. A rocker beam 2 is rotatably supported in the vertical direction by a pin 3 on the member 1, and the rocker beam 2 is supported by a hydraulic cylinder 4 whose one end is pivotally supported on the crushing member 1.
By operating these simultaneously, rocks, concrete 'J-1-roadbed, etc. are removed between the tip claw part 5 of the crushing member 1 and the claw part 6 at the tip of the clamping surface formed on the opposite side of the crushing member of the rocker beam 2. The t-3 is similar to the conventional crushing device described above in that it clamps an object to be crushed and crushes the object by bending the object, but in the present invention, the opposite clamping surface of the crushing member By providing a corner 7 protruding from the rear end of the machine, it is possible to peel off concrete 1, roadbed, etc. at the corner 7 and pull it up without causing the machine to float, even in a lightweight and small aircraft. be.

In addition, 8 is an arm that is pivotally supported to the elevation and rotation boom attached to the traveling vehicle body so that it can be swung, and 9 is an arm that rotates the crushing member 1 that is pivotally supported at the tip of the arm in the vertical direction via a lever 10 and a rod 11. 12 is a concrete roadbed.

Therefore, first, the hydraulic cylinder 4 is extended, that is, the claws 5 and 6 are brought close to each other as shown in FIG. When inserted, the bottom surface of the crushing member 1, that is, the bottom surface near the claw portion 5, is grounded.

Next, when the hydraulic cylinder 4 is contracted, the rocker beam 2 rotates counterclockwise around the pin 3, and the concrete roadbed 12 is separated from the roadbed at the corner 7 and pulled up to the position shown by the two-dot chain line.

At this time, since the reaction force at the time of raising can be received by the grounded bottom surface portion of the crushing member 1, there is no possibility that the arm 8 will be loaded with an excessive reaction force.

Then, by lowering the concrete roadbed onto the roadbed again and forming a gap between the lower surface of the concrete roadbed and the roadbed, the tip of the crushing member 1 can be easily and quickly inserted into the lower surface of the concrete roadbed during breaking and crushing. As a result, the efficiency of the breaking and crushing work is significantly improved.

As described above, in the present invention, the rocker beam is rotatably pivoted to the crushing member, and the rocker beam has a protruding corner, so when the bottom of the crushing member is brought into contact with the ground and the corner is used to pull up the concrete roadbed, the reaction force is generated. is stopped at the ground contact bottom of the crushing member, and almost no peeling reaction force is applied to the arm 8, so a floating moment due to the reaction force is applied to the machine to which the arm is attached during concrete subgrade pulling work. Therefore, it is possible to easily carry out lifting and peeling work of concrete roadbed even with a light and small machine, and it is possible to smoothly and efficiently break and break the concrete roadbed using a light and small machine. It has an excellent effect in that it can be carried out.

[Brief explanation of the drawing]

FIG. 1 is an enlarged front view of main parts of an embodiment of the present invention. 1... Crushing member, 2... Rocker beam, 4... Hydraulic cylinder, 7... Corner part,
8...Arm.

Claims (1)

[Scope of utility model registration request] A crushing member that is pivoted to the tip of an arm that is swingably supported on an elevating and rotating boom attached to the traveling vehicle body and that is rotated vertically by a hydraulic cylinder; A clamping surface for pinching and holding the concrete roadbed between the crushing member and the crushing member is formed on the opposite side of the crushing member at the end, and a corner part for peeling the concrete 1 to the roadbed from the roadbed is formed at the back tip of the clamping surface. A concrete 1 to roadbed peeling and crushing device comprising a protruding rocker beam and a hydraulic cylinder attached to the crushing member to rotate the rocker beam vertically with respect to the crushing member.