JPS623487Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to making the body of a concrete crusher so that it can be installed upside down.

Normally, a concrete crusher performs work by attaching two brackets at the rear, like a bucket of a hydraulic excavator, to the end of the arm of a hydraulic work vehicle and the end of a push rod. However, if there is an obstacle in front of the concrete to be crushed due to work conditions, the loader must be reinstalled so that it faces forward, like a loader bucket. It was impossible.

This invention solves the above problem by attaching a separate bracket to the fuselage, in addition to the conventional bracket, on the opposite side of the attachment point to the arm.

By attaching a third bracket to the fuselage, it becomes possible to use a different mounting method in which the fuselage is reversed than the conventional mounting method, making it possible to mount the fuselage facing forward, which was previously difficult, and to avoid obstacles in front. It is now possible to excavate foundation objects, which was difficult with conventional mounting methods due to the presence of objects, and the work range can be expanded.

Hereinafter, embodiments of the present invention will be described based on the drawings.

Reference numeral 1 denotes an anvil, which is formed into an L-shape, and has the rear end of a rocker beam 2 rotatably supported at its intermediate portion by a pin 3. is attached so that the rocker beam 2 can be rotated. Reference numeral 5 denotes a cutter, which is removably tied to the upper end of a support 6 which is raised and fixed to the inside of the middle part of the anvil 1. The support body 6 is curved and inclined toward the front part of the anvil 1 from the attachment part of the cutter 5. Similarly, a support 7 is fixed to the inside of the rocker beam 2, and a cutter 8 is removably connected to the upper end of the support 7 at a position corresponding to the cutter 5 of the anvil 1. Support 6
It is curved and inclined in the same way as the rocker beam 2, and its tip has two teeth 9 removably fixed to the front part of the rocker beam 2.
It is at the same height as. The teeth 9 are used to crush concrete in cooperation with the front part A of the anvil 1, but while the front part of the anvil 1 is flat, the teeth 9 are wedge-shaped and sharp to reduce stress during crushing. is concentrated so that it can be crushed powerfully. At the rear of the anvil 1 are a pair of upper and lower brackets 10, 11.
The tip of the arm 12 is rotatably supported on the bracket 11, and the tip of the push rod 13 is rotatably supported on the bracket 10. A hydraulic cylinder 14 attached to the arm 12 moves the anvil 1 up and down via the push rod 13. It is designed so that it can be rotated. A bracket 15 connects the tip of the push rod 13 when the anvil 1 is turned in the opposite direction, and is provided on the opposite side of the bracket 10 with the bracket 11 in the center. In addition, 16 is a boom, 17 is a hydraulic cylinder for arm operation, and 18
is lever.

The present invention is constructed as described above, and normally, as shown in FIGS. 1 and 3, the tip of the arm 12 is connected to the bracket 11, the tip of the push rod 13 is connected to the bracket 10, and the anvil 1 is directed toward the front. Work is carried out in the same conditions as back-up and back-up. Figure 3 shows the work being carried out under normal conditions with the anvil 1 attached to the arm. Then, use the back part C of the anvil 1 as a fulcrum and apply a moment to it to excavate the concrete foundation, or operate the hydraulic cylinder 4 to move the anvil 1 between the front part A of the anvil 1 and the teeth 9 of the rocker beam 2. Grip the edges of the concrete foundation and crush it by biting. If you work with the anvil 1 facing down in this way, it will be very convenient to use the back part C as a fulcrum and give a moment to it.
As shown in Figure 4, if there is a side wall in front of the concrete foundation, the work cannot be done using the normal installation method. Therefore, in this case, the method of mounting the aircraft will be changed. In other words, move bracket 11 to arm 1.
Place bracket 15 on the tip of push rod 1.
Connect each to the tip of 3. Although the direction corresponding to the concrete foundation B is opposite, the anvil 1 is on the lower side and can apply a moment using the back part C as a fulcrum, so its operating state is the same as in the previous case. However, in this case, the hydraulic cylinder is contracted to provide a moment, whereas it is extended to provide a moment as in the case described above. In other words, as opposed to sending pressure oil to the head side of the hydraulic cylinder described above, pressure oil is sent to the rod side, and the operating force is slightly reduced. The distance between the tip of the bracket 13 and the connection point of the bracket 15 is increased to compensate for the decrease in operating force.

As described above, the present invention is a crusher that crushes reinforced concrete by operating a rocker beam pivotally attached to an anvil with a hydraulic cylinder. There is an extra part installed so that it can be installed even when the work is done, so even if there is an obstacle in front of the work and it is difficult to work with a normal backhoe type installation.
Since it is possible to install the anvil facing in the opposite direction, the work can be carried out without any problems and the work range can be expanded.

[Brief explanation of the drawing]

FIGS. 1 and 2 are front views of an embodiment of the present invention, and FIGS. 3 and 4 are front views during actual operation. 1...anvil, 2...Rotzker beam, 4...
...Hydraulic cylinder, 10...Bracket, 11...
Bracket, 12... Arm, 13... Bush rod, 14... Hydraulic cylinder, 15... Bracket.

Claims (1)

[Scope of utility model registration request] In a crusher consisting of an anvil, a rocker beam pivotally connected to the anvil, and a hydraulic cylinder that operates the rocker beam, the bracket for attaching the machine body to the arm of the work equipment can be attached even when the machine body is reversed in the front-back direction. , a reversible concrete crusher consisting of two brackets installed on opposite sides of a bracket for connecting an arm.