JPH0720162Y2 - Rolling compaction device for soil compaction - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a compaction device for soil compaction that is detachably attached to the tip of a bending and stretching arm of a civil engineering vehicle having a bending and stretching arm. Is.

[Conventional technology]

Conventionally, roller-type roller compactors have been widely used as roller compactors for civil engineering work, but since the work efficiency is low ,. A structure in which an engine is mounted on the upper side of the rolling plate, the rotational force from this engine is converted into reciprocating motion through a crank motion mechanism, and vertical rolling vibration is applied to the rolling plate to compact the ground surface. Remove the bucket from the tip of the bending and stretching arm of the shovel car, and attach the rolling compaction device for soil compaction to it in a detachable manner.The compaction device is driven above the rolling plate by an eccentric weight driven by a hydraulic motor. Which is configured to generate vibration on the compaction plate ,. The vibration force of the damping hammer attached to the excavating machine is transmitted to the rolling compaction plate via the first transmission member and the second transmission member to vibrate, and bolts / nuts, lock pins, springs, etc. are used to connect the rolling compaction plates. New technologies have been proposed and developed.

[Problems to be solved by the device]

However, in the above conventional technique, In the case of, the structure is complicated, the operation is difficult, and the maintenance and repair are not easy.

． Even in case of above. There was a problem similar to the case.

． In the case of, the bolts, nuts, lock pins, springs, etc. are prone to fatigue and breakage due to violent vibrations, resulting in poor durability. In addition, the rolling plate has vibration force through the first transmission member and the second transmission member. However, there is a problem that the transmission efficiency of the vibration force is poor, the weight is heavy and the workability and work efficiency are poor, and it is not suitable for the rolling work on the slope.

The present invention has been made to solve the above-mentioned problems, and it reduces fatigue and breakage due to vibration, improves durability, is lightweight, and improves workability, and is a compacting device for soil compaction. The purpose is to provide.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a compaction device for soil compaction, which is detachably attached to a tip end of a bending arm 1a of a civil engineering vehicle 1 having a bending arm 1a. Is a casing 1 having a built-in cushion portion 4 formed by laminating a breaker body 2, a chisel 3, a skin plate 5, a synthetic resin plate 6, and a rubber plate 7 on the upper surfaces of the rolling plates 14 and 16.
1, the safety plate 15 and the like are attached by mooring ropes 12 and shackles 13, and the rolling plates 14, 16 are made of high-tensile steel or austenitic manganese steel material, and the rolling plates 14, 16 and the casing 11 are Are connected by bolts and nuts 10 made of the same material as the rolling plates 14 and 16.

[Action]

With the above structure, the vibration of the breaker body is transmitted to the compaction plate through the chisel and the cushion portion, and the soil is efficiently and uniformly compacted. Further, the rolling device has a simple structure and is light in weight, can be easily attached to and detached from the bending / extending arm, has good operability, and has improved durability.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 is an excavation vehicle such as a power shovel for civil engineering, in which the shovel at the tip of the bending / extending arm 1a is removed, and the compaction device according to the present invention is detachably attached thereto.

As shown in FIG. 2 and FIG. 3 (a) and (b), the rolling device is provided with a hydraulic breaker 2 on the upper part thereof.
On the other hand, the upper part of the chisel 3 is connected by inserting the knock pin 8 into the knock pin hole 9. Dowel pin hole 9
The diameter of the is slightly larger than the diameter of the knock pin 8 and is inserted into the knock pin hole 9 with a slight gap so that the vibration force of the chisel 3 is not directly transmitted to the knock pin 8. A cushion portion 4 in which a skin plate 5, a synthetic resin plate 6, and a rubber plate 7 are laminated is provided in a lower portion of the chisel 3 in a casing 11. Below the casing 11, rolling plates 16 and 14 made of a material of high tensile strength steel or austenitic manganese steel having excellent fatigue resistance are provided.

Then, the hydraulic breaker 2 and the rolling plate 14 are attached to the mooring rope.
12 and shackle 13 connect and also casing
The connecting plate provided on the outer periphery of 11 and the rolling plate 14 are bolts made of a material of high tensile strength steel or austenitic manganese steel.
Connected by nut 10. Reference numeral 15 is a safety plate provided on the outer periphery of the casing 11 so that the rolling plate 14 does not separate from the casing 11 and fall due to fatigue and breakage due to vibration.

In the compaction device for soil compaction having such a structure, the vehicle 1 is moved to a place where compaction work is performed, and the lower surface of the compaction plate 14 of the compaction device is compacted by the bending / extending arm 1a on the soil soil 17 to be compacted. The vibrating plate 14 is vibrated by driving the chisel 3 and the soil 17 is compacted by rolling. This rolling operation can be easily performed not only on horizontal soil but also on inclined soil.

The rolling device can be easily attached to and detached from the bending / extending arm 1a by inserting / removing a bolt / nut or a pin into / from a mounting hole provided in the upper portion of the hydraulic breaker 2. Also, chisel 3
Since the vibration force from is transmitted to the compaction plate 14 via the cushion portion 4, the compaction plate 14 performs compaction action on the soil 17 with a substantially uniform force. Rolling plate with the greatest impact force when rolling
Since 14, 16 and bolts / nuts 10 are made of high-strength steel or austenitic manga steel, they have less fatigue and fracture and have excellent durability.

Next, FIG. 4 shows a comparison of the work amount when the soil is compacted by the conventional 4-ton roller compactor with the embodiment of the present invention, but the present invention is superior. it is obvious.

Further, in FIG. 5, in order to compare fatigue resistance, high tensile steel (material: HT-60) or austenitic manganese steel A
The results of comparative measurement of fatigue / rupture time due to vibration in actual work between the present invention using (material: SCMnH2) and the conventional ordinary steel B (material: SC30) are shown.
As is clear from this graph, the present invention is superior in fatigue resistance.

[Effect of device]

As described above, according to the compaction device for soil compaction of the present invention, the following effects can be obtained.

(I). Easy to move to the destination, the soil can be uniformly compacted not only on flat land but also on sloped land.
The structure of the device is simple and lightweight, and it is easy to maintain / repair and attach / detach to / from the bending / stretching arm, and the operability is good.

(B). Since the cushion portion is provided between the chisel and the rolling plate, a uniform force is applied to the rolling plate to uniformly roll the soil, noise is reduced, and durability of the rolling plate is improved.

(C). The durability of the rolling plate and bolts and nuts is improved, which in turn improves the durability of the rolling device as a whole.

[Brief description of drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention, FIG. 2 is a perspective view of a compaction device, FIG. 3 (a) is the same plan view, and FIG. 3 (b) is the same side view. 4 and 5 are graphs comparing the present invention with a conventional example. 1 ... Vehicle, 1a ... Bending / extending arm, 2 ... Breaker, 3 ...
... Chisel, 4 ... Cushion part, 5 ... Leather plate, 6 ... Synthetic oil and fat plate, 7 ... Rubber plate, 8 ... Knock pin, 9 ...
Dowel pin hole, 10 …… Bolt / nut, 11 …… Casing, 12 …… Mooring rope, 13 …… Shackle, 14,16 ……
Rolling plate, 15 …… Safety plate.

Claims (1)

[Scope of utility model registration request] 1. A compaction device for soil compaction, which is detachably attached to a tip end of a bending and stretching arm (1a) of a civil engineering vehicle (1) having a bending and stretching arm (1a). Is a cushion part formed by laminating the breaker body (2), the chisel (3), the skin plate (5), the synthetic resin plate (6), and the rubber plate (7) on the upper surface of the rolling plate (14, 16). A casing (11) containing (4), a safety plate (15), etc. are attached by a mooring rope (12) and a shackle (13), and the rolling plates (14, 16) are made of high tensile steel or austenitic manganese steel. This rolling compaction plate (14, 16) and the casing (11) are made of
A bolt made of the same material as 6). A compaction device for soil compaction characterized by being connected by a nut (10).