JPS5830990B2 - crushing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a crushing device attached to the end of a drive arm of a construction machine, etc., which increases the crushing force and crushes the object alternately and repeatedly. The present invention relates to a crushing device equipped with a mechanism that further applies crushing force.

Generally, this type of equipment is used when crushing and dismantling buildings made of reinforced concrete or the like.

However, since the conventional device consists only of two arms that perform the crushing operation and a hydraulic cylinder that opens and closes the side arms, the crushing force of the two arms is generated by the hydraulic pressure. This method relies only on the oil pressure of the cylinder and has a problem with the magnitude of the crushing force, and moreover, it is a method that applies continuous crushing force to the object to be crushed at once, that is, a method that applies static crushing force. Therefore, an effective crushing action could not be obtained.

In addition, because the work range depends on the work range of the drive arm of the construction machine, due to the structure of the drive arm, it is impossible to work in a tilted state at an angle to the rotational direction, that is, the horizontal line. Met.

In view of the above-mentioned drawbacks of conventional devices, the present invention improves and eliminates them.

Generally, when compressing an object, it is better to apply force in a shaking motion to the object to be crushed than to apply force to the object all at once. widely known.

The present invention applies force alternately from opposite directions to each of the two opposing arms that perform this rocking motion, that is, the crushing operation, and adds the above-mentioned force to the force generated by the hydraulic pressure of the hydraulic cylinder. It is an object of the present invention to provide a crushing device that can increase crushing force and repeatedly apply shaking force to objects to be crushed from opposite directions alternately.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the structure of the present invention shown in the drawings will be described in detail as follows.

FIG. 1 is a diagram showing a crushing device 3 according to the present invention attached to the tip of a drive arm 2 of a construction machine 1.
The configuration is shown in Figure 2.

In the drawing, 4 and 4' are arms for crushing the object to be crushed A, and these arms 4 and 4' are attached to respective support parts 4a and 4a' located approximately in the center thereof. , respectively, are pivotally connected to pivots 6° 6' provided in parallel to the holding part 5 made of two substrates, and an arm interference means 7, which will be described later, is provided between the two pivots 6° 6' in the holding part 5. It's built in.

Reference numeral 9 denotes a hydraulic cylinder for preventing the arms 4, 4' from opening and closing, and its both ends are connected to the rear ends 8, 9 of the arms 4, 4'.
It is connected to 8'.

10 is a rotation mechanism, and this rotation mechanism 10 rotates the holding portion 5. That is, the crushing unit is driven to rotate.

13 is a swing cylinder installed on the drive arm 2;
The operation of this swing cylinder 13 is similar to the conventional case, in which the vertical angle of the crushing device 3 is changed around the mounting shaft 11a of the swing base plate 11, and the arm 4 is a feature of the present invention.
, 4', and is also a constituent member of the mechanism for slightly swinging and increasing the force.

The mechanism for slightly oscillating the arm and increasing its force is composed of the oscillating cylinder 13, the oscillating base plate 11, the holding section 5, and the arm interference means 7.

The arm interference means 7 is constructed as shown in FIG.

In FIG. 3, the ends of the arms 4, 4' are on the left side of the drawing.

Reference numeral 14 denotes a connecting member integrally fixed to the support portion 4a of the arm 4 (see Fig. 2), and 15 refers to the support portion 43' of the arm 4' (see Fig. 2).
These two connecting members 14 and 15 are connected to a sliding member 17 and a connecting member 15 rotatably attached to the sliding member 17. With this structure, the arms 4 and 4' (see FIG. 2) interfere with each other in their respective opening and closing operations.

The sliding member 17 is inserted into the notch 16 of the connecting member 14 in the direction indicated by the arrow f1. It is fitted so that it can slide in the f2 direction, and 19 and 20 are members that enable the sliding movement.

For example, when the arms 4, 4' perform a closing operation, that is, a crushing operation, the sliding member 17 slides in the direction of the arrow f1 while
The connecting members 14 and 15 rotate by the same angle around the support shafts 6 and 6', respectively, and move to the position shown by the dashed line.

That is, as described above, the arms 4 and 4' interfere with each other in their movements via the arm interference means 7.

Due to the action of the arm interference means 7 constructed in this manner, the arm 4.4', which is a feature of the present invention, can perform repeated pinching operations.

Next, the force increase and repeated pinching operation of the arms 4, 4' will be explained with reference to FIG.

First, when performing a closing operation, rod 1 of the swing cylinder 13
3a is slightly protruded in the direction of arrow a1.

Then, since the crushing device 3 is pushed forward by the rod 13a via the connecting shaft 11b of the swing base plate 11, the crushing device 3 moves along the arrow b with the mounting shaft 11a as a fulcrum.
Receives rotational force in one direction.

However, since the object to be crushed A exists between the arms 4 and 4', the arm 4 is strongly pressed against the object to be crushed A, and as a result, the arm 4 moves in the same way as closing the arm 4.

Note that a force is always applied between the arms 4 and 4' by the hydraulic cylinder 9 in the direction of closing the arms 4 and 4'.
The pressing force exerted by the swing cylinder 13 is added to the pressing force exerted by the hydraulic cylinder 9.

That is, a force increasing effect occurs. The object A to be crushed is crushed by this force increasing action by the arm 4, and when the arm 4 moves to close, the other arm 4' performs a similar closing action by the arm interference means 7, and as a result, both arms 4, 4' Crush the object A to be crushed.

What is the position of the arm interference means 7 in this closed state?

As mentioned above, this is indicated by the dashed line in FIG.

Conversely, from this closed state, the rod 13a of the swing cylinder 13
move back slightly in the direction of arrow a2.

Then, the crushing device 3 moves in the direction of arrow b using the mounting shaft 11a as a fulcrum.
It rotates in two directions, and as a result of this action, the arm 4' is strongly pressed against the object A to be crushed, and the object A to be crushed is crushed by the force-increasing action of this arm 4' and the crushing operation by the other arm 4. .

As described above, the objects A to be crushed are clamped by the arms 4 and 4', and in this state, the rod 13a of the packet cylinder 13 is repeatedly moved in and out to increase the crushing force. , the object to be crushed A is crushed by repeatedly performing a clamping operation and gradually reducing the space between the arms 4 and 4' as the object to be crushed A is destroyed.

To explain the procedure and operation of the crushing and dismantling work using the crushing device 3 equipped with a force-increasing and rocking mechanism according to the present invention, first, the drive arm 2 is operated to determine the position in the vertical and horizontal directions relative to the object A to be crushed. Furthermore, the rotating mechanism 10 provided on the swing base plate 11 is operated to rotate the crushing section of the crushing device 3 to ensure the optimum position and angle for the crushing operation.

Next, the arms 4 and 4' are opened by the hydraulic cylinder 9, and the object A to be crushed is sandwiched between the two arms 4 and 4' as shown in FIG. , 4' are closed while crushing the object A.

At this time, if the material to be crushed A cannot be crushed with only the crushing force of the hydraulic cylinder 9, or the force increasing and shaking mechanism is activated in combination with the crushing force of the hydraulic cylinder 9. The arms 4, 4' are slightly swung by this to carry out the crushing and dismantling work.

The procedure and operation of demolition work using the device according to the present invention have been explained above, but according to the present invention, it is possible to exert an increased crushing force compared to conventional devices of this type having the same hydraulic pressure. First, it has been experimentally confirmed that since it is equipped with a rotating mechanism, it can perform a very wide range of work without being restricted in its working range.

Furthermore, since the basic structure of the crushing device according to the present invention is the same as conventional devices of this type, it can be installed on construction machines of any size by changing the dimensions of the mounting portion.

As explained above, the present invention provides a substrate with two arms that are opened and closed by hydraulic cylinders to perform a crushing operation, and a connecting member that extends in opposite directions is provided on the pivot portion of each arm. A clamping and crushing mechanism in which a notch is provided at the tip of one connecting member, a sliding member is provided at the tip of the other connecting member, and the sliding member is slidably fitted into the notch to constitute arm interference means. and a rocking mechanism mounted on the tip of a drive arm so as to be swingable by a rocking cylinder about a mounting shaft, and a crushing mechanism in which the above-mentioned crushing crushing mechanism is attached to the rocking mechanism via a one-rotation mechanism. The device is useful because it can obtain increased crushing force compared to conventional devices of this type that have the same hydraulic pressure, and its working range is extremely wide.

[Brief explanation of the drawing]

FIG. 1 is a side view of a construction machine equipped with a crushing device according to the present invention, FIG. 2 is a side view of the crushing device, and FIG. 3 is an explanatory diagram of the main parts of the crushing device. 1...- Construction machine, 2... Drive arm,
31. ..., crushing device, 4,4'...arm, 5...holding section, 7...arm interference means, 9...hydraulic cylinder, 10... Rotating mechanism, 11... Rocking board, 13...
Swing cylinder, 14, 15... Connection member, 17
・−・・Sliding member, 18・・・・−・Spindle.

Claims (1)

[Claims] 1. Two arms that are opened and closed by hydraulic cylinders to perform a crushing operation are provided on the board, and a connecting member extending in opposite directions is provided at the pivot portion of each arm, and a notch is provided at the tip of one of the connecting members. , and a sliding member is provided at the tip of the other connecting member, and the sliding member is slidably fitted into the notch to constitute an arm interference means, and a crushing mechanism is provided at the tip of the pivoting arm. 1. A crushing device comprising a rocking mechanism mounted so as to be rockable by a rocking cylinder about a mounting shaft, the crushing device being characterized in that the crushing mechanism is installed on the rocking mechanism via a rotating mechanism.