JPS5840113Y2 - compaction equipment - Google Patents

Description

[Detailed description of the invention] This invention is a compaction device that is attached to a mobile cart such as a hydraulic excavator to perform compaction, tamping, piling, etc. The present invention relates to a compaction device that can be oriented in a desired direction.

Conventionally, compaction equipment has been used that includes a hydraulic motor, an eccentric pendulum connected to the hydraulic motor, and a base plate that vibrates with the eccentric pendulum. When compacting (or tamping) a long and narrow trench 1 in which materials have been buried, or when piling sheet piles, etc. in a certain direction, make sure that the direction of the compaction device 2 is always parallel or almost parallel to the trench or sheet pile. The work required time and effort as the mobile cart had to be moved.

Furthermore, if the site is small and there is no space to move the mobile trolley, there is a drawback that the work becomes difficult.

Note that 4 is a boom and 5 is a road.

The present invention was devised in view of the above points, and the lower part of the compaction device is constructed so that it can be freely rotated by a hydraulic cylinder. It is an object of the present invention to provide a compaction device in which the compaction device 2 can be rotated to any position.

Hereinafter, the configuration of the present invention will be explained based on embodiments shown in the drawings.

In Figures 2 to 4, 10 is the arm 1 of the mobile trolley.
1. A central bracket 12 is connected to the top bracket 10, and a hydraulic motor 13, an eccentric pendulum (not shown) connected to the hydraulic motor, and an eccentric pendulum (not shown) connected to the hydraulic motor A lower bracket 15 including a base plate 14 that vibrates with a pendulum is connected via a vibration-proof rubber 16 or an elastic member such as a spring.

In the device configured in this way, as shown in FIG.
A rotating body 22 having a circular hole 21 in the center of the lower surface is rotatably fitted into the circular hole 20.

A plate-shaped body 23 wider than the circular hole is disposed above the circular hole 20, and the plate-shaped body 23 and the rotating body 22 are integrally connected by a guide bolt 24 having a threaded portion connected with a pin. At the same time, the lower flange 25 of the rotating body 22 and the upper plate 18 of the central bracket are integrally connected by bolts 26, and the piston rod 28 of the hydraulic cylinder 27 is located at a distance from the center of the plate-shaped body 23. By connecting and operating the hydraulic cylinder 27, the plate-shaped body 23, the rotating body 22, the central bracket 12, and the lower bracket 1
5 are configured to rotate together.

In addition, the inner peripheral edge of the bottom plate 17 of the top bracket and the plate-shaped body 23
A washer 31 is inserted so that a slight gap 30 is created between the plate-shaped body 23 and the rotating body 22, and the bottom plate 17 and the upper plate 18 of the central bracket A washer 32 is fitted between them, and a sleeve 33 is fitted between the bottom plate 17 and the rotating body 22 between these washers 31 and 32.

The washers 31, 32 and sleeve 33 are made of a slightly elastic member such as nylon or urethane, and absorb the vibrations of the rotating body 22, the plate-shaped body 23, and the upper plate 18 of the central bracket. It is configured for easy movement.

On the other hand, a piston 34 is slidably fitted into the round hole 21 of the rotating body 22.
A piston rod 35 is inserted into the central hole of the plate body 23 and the lower end of the piston rod 35 is fastened with a set nut 36 to connect the piston 34, the rotating body 22, and the plate body 23. , only the piston 34 and the rotating body 22 are slidably connected around the piston rod 35.

37 is a locking pin), 38, 40, and 41 are seal backings.

Further, a hydraulic motor 13 for operating the eccentric pendulum is installed in a space 42 formed by the upper end of the piston 34 and the rotating body 22.
A hydraulic passage 43 communicating with is connected.

This hydraulic passage 43 is provided inside the rotating body 22.

Further, the shoulder portion of the piston 34 has a notched peripheral portion so that it can easily receive hydraulic pressure.

Note that 44 is a link, 45 is a lock pin, 46 is an arm pin, 47 is a link pin, 48 is a bolt for fixing the arm pin, and 50 is a bolt for fixing the link pin.

Bushes 51 and 52 are fitted between the arm pin 46 and the top bracket 10 and between the link pin 47 and the top bracket 10, respectively, and the upper parts of the arm pin fixing bolt 48 and the link pin fixing bolt 50 are respectively fitted. Bracket collars 53 and 54 are provided at the bottom and at the bottom, respectively.

These bushings 51.52 and bracket collar 5
3.54 is constructed of a slightly elastic member such as nylon or urethane, similar to the washers 31.32 and sleeve 33 described above, so as to be able to absorb vibrations.

In the compaction device configured as described above, when the hydraulic motor 13 is operated, the hydraulic power source of this hydraulic motor is connected to the hydraulic passage 43, so that the hydraulic pressure is always applied to the upper surface of the piston 34 in the rotary body 22. This piston 3 acts on
4, and at the same time the piston rod 35 pushes down the plate-shaped body 23.
is pulled downward to eliminate the gap 30 between the lower surface of the plate-shaped body and the upper surface of the rotating body, and the plate-shaped body 23 is pulled up against the washer 3 on the upper side.
Press 1.

Therefore, vibrations transmitted from the lower part of the device are absorbed, and noise generation is prevented.

Next, another embodiment of the compaction device of the present invention will be described based on FIG. 5.

This compaction device has a circular hole 20 bored in the center of the bottom plate 17 of the top bracket 10 and the center of the upper plate 18 of the central bracket, and a cylindrical body or a rotating body made of a cylindrical body is inserted into the circular hole. 55 is rotatably fitted, a plate-like body 23 wider than this circular hole is placed above this circular hole 20, and this plate-like body 23 and rotating body 55 are connected via bolts 56, 57, and 58. At the same time, the rotating body 55 and the central bracket are integrally connected, and the piston rod 28 of the hydraulic cylinder 27 is connected at a position apart from the center of the plate-like body 23.
are connected by a lock pin 45, and this hydraulic cylinder 2
By operating 7, the plate-shaped body 23, the rotating body 55,
The central bracket and the lower bracket are configured to rotate as a unit.

Note that the link 44 extends perpendicularly to the piston rod 28, and the plate-like body 23 is
It is fixed at

Further, as in the case of the embodiment shown in FIG.
5. The plate-shaped body 23 and the upper plate 18 of the central bracket are configured to absorb vibrations and to be easy to rotate.

Since the compaction device of the present invention is configured as described above, the lower bracket equipped with the hydraulic motor, eccentric pendulum, base plate, etc. can be freely rotated by operating the hydraulic cylinder. This has the effect of improving workability.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing the state in which the compaction device is used;
Fig. 2 is a partially sectional front view showing an embodiment of the compaction device of the present invention, Fig. 3 is an enlarged detailed plan view of the same, Fig. 4 is an enlarged sectional detail view of the same main part, and Fig. 5 is the present invention. FIG. 3 is a cross-sectional view of main parts showing another embodiment of the compaction device of FIG. 1...Groove, 2...Compaction device, 3...
...Mobile trolley, 4...Boom, 5...
...Road, 10...Top bracket, 12.
...Central bracket, 13...Hydraulic motor, 14...Base plate, 15...
・・Lower bracket, 16 ・・・Vibration isolation rubber, 20
...Circular hole, 21...Round hole, 22...
...Rotating body, 23...Plate-shaped body, 24...
...Guide bolt, 27...Hydraulic cylinder, 3
0...Gap, 31.32...Washer, 33...Sleeve, 34...Piston, 35...Piston rod, 36...・・・・・・
・Set nuts, 42... Space, 43...
...Hydraulic passage, 46...Arm pin, 47...
... Link pin, 51, 52 ... Fish, 53.54 ... Racket collar, 55
...Rotating body.

Claims (1)

[Scope of utility model registration request] A central bracket is connected to a top bracket for attachment to an arm of a mobile trolley, and the central bracket includes a lower bracket having a hydraulic motor, an eccentric pendulum connected to the hydraulic motor, and a base plate vibrated by the eccentric pendulum. In the compaction device, a circular hole is bored in the center of the bottom plate of the top bracket and the center of the top plate of the center bracket, and a cylindrical body or a cylindrical body is formed in the circular hole. A rotary body is rotatably fitted, a plate-like body wider than the circular hole is arranged above the circular hole, and the plate-like body and the rotary body are integrally connected, and the rotary body and the center portion are connected together. The plate-shaped body, rotating body, center bracket, and lower bracket can be integrated by connecting the bracket together with the plate-shaped body, connecting a hydraulic cylinder at a position apart from the center of the plate-shaped body, and operating this hydraulic cylinder. A compaction device characterized in that the compaction device is configured to rotate as shown in FIG.