JPS61146928A - Excavating bucket - Google Patents

Abstract

PURPOSE:To enable an excavating bucket to be used as a roller-compacting plate, by a method wherein an exciter comprising an electric motor and an eccentric plate is mounted in the vicinity of a pivotally-secured bracket at the back side of the bucket. CONSTITUTION:A bucket 1 is formed with plates on the both sides and a bottom plate, and a pair of brackets 5 for pivotally-securing to a boom and an arm are mounted in a protruding manner to the outer upper surface of the bottom plate. An exciter is located to the upper surface of the bottom plate. The exciter includes an electric motor 7, a rotary shaft 11 rotated through the driving of the motor 7, and an eccentric plate 12 secured to the shaft 11. This enables the excavating bucket 1 to be used for roller-compaction as it is.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an excavation bucket for excavating and transporting earth and sand in civil engineering construction work.

[Conventional technology]

BACKGROUND ART Conventionally, in the field of civil engineering construction machinery, there have been various specialized machines mainly for the purpose of excavation, foundation work, slope compaction work, etc., and the machines according to the purpose are brought to the site to perform construction work.

This dedicated excavator for excavation work has an excavation bucket that excavates and transports earth and sand pivotally attached to the boom tip of a vehicle such as a power shovel, and moves up and down in a substantially vertical plane by the operation of a hydraulic cylinder placed on the boom. It is configured to rotate.

[Problem that the invention seeks to solve]

However, in cases such as bank protection construction, which requires a slope extrusion process after excavation work, the excavation machine and compaction equipment must be transported to the site, which increases the cost of transporting the machine.

Under these circumstances, it would be efficient to add a compaction function to an excavator and replace it with a dedicated excavator, but conventional methods have not been able to solve this problem.

An object of the present invention is to add a rolling function to an excavator so that it can be used as a general-purpose machine with excellent workability.

[Means for solving problems]

The configuration of the present invention is to apply a reciprocating vibration force to the back side of the bucket's body in the direction in which the bucket swings with respect to the excavating bucket, which is pivotably attached to the tip of the boom of a civil engineering construction machine. It is equipped with an excitation device.

〔Example〕

The present invention will be described below based on embodiments shown in the drawings.

FIG. 1 is a perspective view of the excavation bucket according to the present invention attached to the tip of the poom of a power shovel as an example of a construction machine.
can operate in various ways to perform normal excavation work.

FIG. 2 is a cutaway side view of the bucket l, and FIG. 3 is a cutaway plan view. In the figure, a bucket 1 is for use on rice fields or slopes, the inside of which functions as a filling part 2 for earth and sand, and a flat pressing plate 3 is arranged on the lower surface. Also, on the back is a pivot bin D for pivoting to the tip of boom A and link C.
A pivot portion 5 is formed which has an opening 4 through which it is inserted.

Reference numeral 6 denotes a casing for covering a hollow portion formed on the back side of the main body of the bucket 1 and for housing the excitation device of the present invention, and a motor 7 operated by hydraulic pressure, pneumatic pressure, or electric power is fixed in the center of the casing. An excitation shaft 11 supported by a bearing 10 is connected to the output shaft 8 via a coupling 9.

Reference numeral 12 denotes an eccentric plate that is eccentrically fixed to the excitation shaft 11, and the eccentricity 2 relative to the excitation shaft 11 is set to an appropriate value such as weight.
bucket 1 by exciting vibrations by rotating it at high speed.
This allows vibration to be applied to the entire structure.

The direction of the reciprocating vibration load on the bucket 1 by this excitation device can be made to match the direction of the swing of the bucket I by the cylinder B by arranging the excitation shaft 11 substantially parallel to the axis of the pivot pin D with the poom A. Can be done. And the excitation axis 11
If the direction of rotation is clockwise in FIG. 2, the tip side of the bucket 1 will vibrate back and forth up and down, allowing the pressing plate 3 to press out the required surface.

In the above configuration, in addition to soil excavation and transportation work using the bucket 1, in the case of bank protection work, etc., the excitation device can be driven as is to perform slope extrusion work without replacing the bucket 1 with a compaction bucket. It can be carried out.

Due to the operation of this excitation device, the entire bucket 1 undergoes minute reciprocating vibrations with the pivot point with the tip of the boom A as the center of oscillation, as described above. If the work is carried out with the pressing plate 3 placed on the upper surface, intermittent vibrations are applied in the direction of earth pressure in addition to the rolling blade by the poom A, so that efficient pressing work is possible.

In this way, pressure due to vibration is applied to the work surface, so
It is possible to reduce the rolling edge caused by the pool A. In this case, the output of the motor 7 for rotating the excitation shaft 11 only needs to be small, so the overall power required for the extrusion work can be reduced, and fuel consumption can be reduced.

In addition to arranging the excitation device inside the casing 6, it is also possible to provide it on the back outside of the bucket l as shown in FIG. In this case, it is preferable to use a cylindrical casing in order to minimize the capacity so as not to interfere with normal excavation work.

Even when the excitation device is attached to the outside of the bucket 1 in this way, it is a matter of course that the excitation shaft 11 and the axis of the pivot pin D with the poom A are arranged in parallel.

Furthermore, in addition to being attached to field or slope buckets, the exciter of the present invention can also be installed on excavation buckets with teeth at the tip of the bucket 1, skeleton buckets for collecting river gravel, etc., and the vibrations can be used for various tasks. can be added. For example, in the case of exclusive use for excavation, when supplying the scooped earth and sand to a truck or the like, the vibration of the bucket 1 can quickly remove the earth and sand adhering to the inner surface of the bucket l, thereby improving work efficiency.

〔Effect of the invention〕

According to the present invention, the present invention can be applied not only to excavation work using a bucket but also to extrusion work, so the versatility is improved (1).The power required for extrusion can also be reduced, so there is an effect that power costs can be reduced.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an excavation bucket according to the present invention attached to the tip of the boom, Fig. 2 is a partially cutaway side view of the bucket, Fig. 3 is a front view with main parts cut away, and Fig. 4 is an excitation It is a perspective view when a device is arranged outside a bucket. ti) Bucket (2) Filling section (3) Pressing plate (4) Opening (5) Pivoting section (6) Casing (7) Motor (8) Output shaft (9) Coupling αΦ Bearing (11) Excitation shaft (12 ) Eccentric plate (A) Boom (D) Pivot pin Zenimushi kujin Kutsuryanagi Yo 7th Figure 1 agent Masu Tegori (and 1 other person) Figure 2 Ditch 3 Figure 4 Procedure amendment book 1977 Patent Application No. 267896 2, Bucket showing the name of the invention 3, Relationship with the person making the amendment Patent applicant address 4, agent 6, contents of the amendment Figure 2

Claims (1)

[Claims] 1. In an excavation bucket that is pivotably attached to the tip of the boom of a civil engineering construction machine, an excitation device is installed on the back side of the excavation bucket's main body to apply a reciprocating vibration force to the main body in the direction of the bucket's swing. A digging bucket featuring: