JPS6332167Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a compaction device that is attached to a power shovel working machine and performs compaction work.

As a conventional device of this kind, for example, Utility Model No. 55-150861
The one described in Publication No. 1982-24963 is publicly known. The device described in the above publication has a vibrating work machine attached to the tip of a backhoe and is used for tasks such as tamping and piling, but since the vibrating work machine can only rotate forward and backward, For example, it is not possible to compact a sloped surface that slopes from side to side, which limits the work range, and because the structure uses a hydraulic motor to rotate an eccentric rotor to generate vibrations, it is not possible to obtain strong compaction force. There was a problem.

This idea was made with the aim of improving this problem.The main body can be rotated in front, back, left and right directions, making it possible to compact slopes that slope in any direction, and also uses a powerful hydraulic breaker as the vibration source. It is an object of the present invention to provide a compaction device with a relatively simple configuration that can provide compaction force.

An embodiment of this invention will be described in detail below with reference to the drawings. In the figure, reference numeral 1 denotes a power swivel, and an upper rotating body 3 is rotatably provided on a track-type suspension 2. A working machine 4 is attached to the front part of the upper revolving body 3. The work equipment 4 consists of a boom 6 that can be raised and lowered by a boom cylinder 5, and an arm 8 that is pivotally connected to the tip of the boom 6 and can be rotated by an arm cylinder 7. 10 is installed. Main body 1 above
0, the bracket 11 protruding from the back is the pin 12
Mounting plate 13 pivotally attached to the tip of arm 8 by
The upper proximal end of the bracket 11 is pivotally attached to the arm 8, and the tip of the piston rod 14a is pivotally attached to the upper end of a lever 15 provided on the tip side of the arm 8 so as to be able to rise and fall freely. It is connected to the tip of the piston rod 14a of the cylinder 14 via a link 16, so that it can be rotated in the front-rear direction about the pin 12 by the working machine cylinder 14. A pivot shaft 18 protruding from the back surface of the rotating body 17 is rotatably supported on the mounting plate 13. The revolving body 17 is located on the front side of the mounting plate 13, and the tip of an operating rod 19 protruding from the lower part of the back side protrudes toward the back side of the mounting plate 13 through a long hole 13a bored in the mounting plate 13. has been done. The elongated hole 13a has an arc shape centered on the pivot shaft 18, and the tip of the piston rod 20a of the rotating cylinder 20 is pivotally attached to the tip of the operating rod 19 protruding from the elongated hole 13a. The swing cylinder 20 is rotatably supported by a support shaft 22 on a bracket 21 protruding from the mounting plate 13, and the swing cylinder 20 supports the swing shaft 18.
The rotating body 17 can be rotated within a certain range around the center.

On the other hand, two pairs of brackets 23 are vertically spaced apart from each other and project from the front surface of the revolving body 17, and a vibration generator formed by a hydraulic breaker is attached to the lower end side of a guide pin 24 inserted into a pin hole 23a of these brackets 23. A pin hole 26a of a bracket 26 protruding from the machine 25 is inserted. Each bracket 2 above
A compression spring 27 inserted through the guide pin 24 is interposed between 3 and 26, and elastically supports the exciter 25 via each compression spring 27. A retaining pin 28 is inserted.

Further, a pressure plate 30 is attached via a ball joint 29 to the tip of a piston rod 25a projecting from the lower end of the vibrator 25. The expansion plate 30 has a substantially square shape, the periphery of which is bent diagonally upward, and the ball receiving portion 29a of the ball joint 29 is fixed to the center of the upper surface, and the ball receiving portion 29a is fixed to the ball receiving portion 29a. A ball 29b fixed to the tip of the piston rod 25a of the vibrator 25 is rotatably supported. Further, retaining rings 31 are protruded from the corners of the upper surface of the expansion plate 30, and these retaining rings 31 and the bracket 26 of the vibration exciter 25 are connected to each other.
Four holding springs 32 are stretched between them, and the expansion pressure plate 30 is held horizontally by these holding springs 32.

This invention has been described in detail above, so that, for example, when compacting a slope, the power shovel 1 is stopped at a position where it is easy to work, and then the work machine cylinder 14 is used to pin the spreading pressure plate 30 parallel to the slope to be compacted. The mounting plate 13 is rotated around the rotation axis 12, or the rotating body 17 is rotated around the rotation axis 18 using the rotation cylinder 20. In this state, while pressing the rolling pressure plate 30 against the slope, the vibration exciter 25 is operated to perform compaction.Since the rolling pressure plate 30 can be rotated in any direction according to the unevenness of the slope, the rolling pressure plate 30 can be pressed against the slope. Compaction can be done easily. Furthermore, by using the vibration exciter 25 as a hydraulic breaker, a strong compaction force can be obtained, so compaction work can be performed efficiently in a short time, and the main body 10 is Since the posture of the robot can be changed arbitrarily, it can easily handle slopes in any direction. Moreover, since the angle of the rolling pressure plate 30 can be changed freely, there is no need to accurately adjust the angle of the rolling pressure plate 30 to the inclined surface, and this has the effect that compaction work can be performed without any skill required. It also has.

[Brief explanation of the drawing]

The drawings show one embodiment of this device, with FIG. 1 being an overall schematic view and FIG. 2 being an enlarged side view of the device.
FIG. 3 is a rear view of the same, and FIG. 4 is a perspective view showing the working state. 1 is a power swivel, 4 is a work machine, 13 is a mounting plate, 14 is a work machine cylinder, 17 is a revolving body, 20
25 is a rotating cylinder, 25 is an exciter, 29 is a ball joint, 30 is an expansion plate, and 32 is a holding spring.

Claims (1)

[Claims for Utility Model Registration] (1) A mounting plate 13 rotatable by a work machine cylinder 14 is attached to the end of the arm of the work machine 4 attached to the upper revolving structure of the power swivel 1, and the front surface of this mounting plate 13 is , a revolving body 17 which can be freely rotated by a revolving cylinder 20 is provided, and this revolving body 1
At the same time, an excitation machine 25 is attached to the excitation machine 7, and an expansion pressure plate 30 is rotatably attached to the tip of the excitation machine 25 via a ball joint 29, and a tension frame is provided between the expansion pressure plate 30 and the excitation machine 25. A compaction device in which a spreading pressure plate 30 is held in a horizontal state by a holding spring 32. (2) The compaction device according to claim 1, in which the exciter 25 is a hydraulic breaker.