JP2004244950A - Vibrating roller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a unfastened area performing no rolling by a rolling wheel in a vibrating roller. <P>SOLUTION: This vibrating roller R has a traveling machine body 10, and the rolling wheel 12 supported in front of the traveling machine body via a machine body frame 20, and arranges a blade 40 in the width direction in front of the rolling wheel. The machine body frame has a pair of side members (side plates 21L and 21R) projecting from a front end part of the rolling wheel, and a width directional member (a cross member 25) horizontally arranged in a tip part of the respective side members. The blade is constituted to be supported by the width directional member in a state of not projecting from both side side members. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a vibrating roller with a blade used for compaction work such as ground and embankment.
[0002]
[Prior art]
As shown in FIG. 5, when burying the sewer pipe K, the buried trench M is excavated, the sewage pipe K is disposed inside the buried trench M, backfilled with earth and sand, and then buried. Rolling is performed while leveling the upper surface of the groove M with a blade. At that time, at the time of the leveling operation and the rolling operation (hereinafter sometimes referred to as “rolling operation or the like”), a vibratory roller R ′ for earthwork having a blade 40 ′ mounted on the front surface is used.
[0003]
For example, as shown in FIG. 6, a conventional vibration roller R 'is provided with a traveling machine body 10' having a pair of left and right driving wheels 11 'and a rolling bearing wheel 12' in front of the traveling machine body 10 '. A body frame 20 ′ having a square shape in plan view is provided, and the traveling body 10 ′ and the body frame 20 ′ are articulated by a connecting portion 15 ′.
[0004]
The body frame 20 'includes a pair of left and right side plates 21L' and 21R 'for supporting the rolling wheel 12' from both sides, and a cross member 25 'connecting the side plates 21L' and 21R '. Have. Then, a blade support arm 35 'for supporting the blade 40' extends from the outer surface of the left and right side plates 21L ', 21R' near the rear end face of the rolling wheel 12 'forward of the rolling wheel 12'. The blade 40 'is attached to the blade support arm 35' on both sides so as to be orthogonal to the tip of the blade support arm 35 '(see Non-Patent Document 1).
[0005]
[Non-patent document 1]
Sakai Heavy Industries, Ltd., “SV200 Series Vibrating Roller” pamphlet, issued on June 2, 1988.
[Problems to be solved by the invention]
However, in the vibration roller R ', since the blade support arm 35' is attached to the outer side surface of the left and right side plates 21L 'and 21R', the blade support arm 35 'extends in the vehicle width direction of the rolling wheel 12'. The blade 40 'protrudes by the width (the reference character h in FIG. 5 indicates the protruding width), and an untightened area (hereinafter, referred to as "rolling work") is formed at both ends of the rolling wheel 12'. This causes a problem that an unfastened region is generated in a wide range.
In particular, when performing the rolling work or the like of the buried groove M, usually, the work is performed in a state where there is no extra space on the side where the excavated earth and sand are deposited on both sides of the buried groove M, so that the remaining tightening is performed as much as possible. It was requested to reduce the area.
[0007]
SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-described problem, and has as its object to reduce as much as possible the remaining area in a vibrating roller with a blade.
[0008]
[Means for Solving the Problems]
In order to solve the above problem, a vibration roller of the present invention includes a traveling body, and a rolling wheel supported via a body frame in front of the traveling body, and a width direction in front of the rolling wheel. A vibrating roller provided with a blade, wherein the body frame has a pair of side members protruding from a front end of the rolling wheel, and a width laterally provided at a tip end of each side member. A direction member, and the blade is supported by the width direction member via an arm member so as to fit within the body frame without protruding from the side members on both sides in a front view. It is characterized by.
Here, the front means the traveling direction side (for example, the left direction in FIG. 1) when the driver of the vibration roller performs the normal operation.
[0009]
The present invention, in the conventional vibrating roller, it is difficult to attach the blade to the inner surface of the side member constituting the body frame due to the presence of the rolling wheel, and it is also possible to attach the blade to the lower surface of the side member, Considering that the curve clearance of the vehicle becomes smaller and the minimum ground clearance cannot be secured, a configuration in which the width direction member constituting a part of the body frame supports a blade having substantially the same dimension as the interval between the side members on both sides is provided. Accordingly, the blade and the arm member for supporting the blade are prevented from protruding in the vehicle width direction outside the side member of the body frame.
With this configuration, the rolling wheel width (compacting width) and the blade width can be matched as much as possible, so that it is possible to achieve a reduction in the unpressed area as much as possible.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the vibration roller R according to the present invention will be described in detail with reference to the drawings. In the following description, the front-back direction corresponds to the left-right direction in FIG. 1, and the left-right direction refers to the direction as viewed from the rear side of the vibrating roller R (lower upper direction in FIG. 2). Corresponding.
[0011]
[Schematic configuration of vibration roller]
As shown in FIGS. 1 to 4, the vibration roller R of the present invention is a tamping roller, and includes a traveling machine body 10 having a pair of left and right driving wheels 11 on the rear side, and a rolling wheel on the front side of the traveling machine body 10. The vehicle body 10 is provided with a body frame 20 having a U-shape in plan view and the traveling body 10 and the body frame 20 are articulated by a connecting portion 15.
[0012]
A driver's seat 13 is provided on the upper part of the traveling body 10, and by operating a steering handle 14 of the driver's seat 13, the traveling body 10 and the body frame 20 turn to each other in the left and right direction, and When there is unevenness in the direction, the traveling body 10 and the body frame 20 are rotatable about the horizontal machine axis so as to follow the unevenness.
Further, the rolling wheel 12 has a plurality of tamping feet 12b projecting radially around the outer periphery of the iron wheel drum 12a, and a vibration mechanism (see FIG. 1) for vibrating the iron wheel drum 12a with respect to the rolling surface. (Not shown).
[0013]
[Airframe]
The body frame 20 includes a pair of left and right side plates 21L and 21R (side members) protruding from the front end and the rear end of the rolling wheel 12 in order to support the rolling wheel 12 from both sides. Each of the side plates 21L and 21R has a cross member 25 (widthwise member) and a rear plate 23, which are provided laterally in the width direction orthogonal to each other at the front end and the rear end.
[0014]
The side plates 21L and 21R have a modified pentagonal shape in which a trapezoidal front portion and a rectangular portion other than the trapezoidal portion are combined, and have a forward upward slope. An upper cover 24 is provided on the upper surfaces of the side plates 21L and 21R, through which a plurality of hydraulic hoses 53 and the like for supplying hydraulic oil to the hydraulic cylinder 50 are inserted.
Further, a connecting portion 15 for connecting the traveling body 10 and the body frame 20 is provided at a central portion in the width direction of the rear plate 23.
[0015]
As shown in FIGS. 3 and 4, the cross member 25 includes an upper plate 26U and a lower plate 26L, and left and right end plates 27L and 27R attached to both ends of the upper plate 26U and the lower plate 26L. The end plates 27L, 27R have the same orientation as the end plates 27L, 27R, and are formed from rib plates 28 attached at predetermined intervals in the width direction. It is fastened to the front end by a bolt 29 (FIG. 1).
[0016]
The upper plate 26U has a slightly upward slant toward the rear at the front ends of the left and right side plates 21L and 21R, and is attached so that the rear end thereof coincides with the upper surface of each of the side plates 21L and 21R. . The lower plate 26L is attached so as not to protrude from the lower surfaces of the left and right side plates 21L and 21R, and to be substantially parallel to the inclination of the lower surfaces.
A hydraulic cylinder support member 33 having a U-shape in plan view and having a closed upper surface is provided on the upper surface at the center of the upper plate 26U such that the opening is located on the front surface.
[0017]
An arm support bracket 31 for attaching the blade support arm 35 is attached to the lower surface of both ends in the width direction of the lower plate 26L. The arm support bracket 31 is a member having a mountain shape in a side view and having a predetermined width having end plates 31a at both ends, and a pin insertion hole 31b is formed in each end plate 31a.
Note that the arm support bracket 31 is mounted such that the lowermost ends thereof substantially coincide with the lower surfaces of the left and right side plates 21L and 21R so that the minimum ground clearance of the vehicle can be secured.
In addition, on the upper surface of the lower plate 26L, a plurality of attached matter removing members 34 are provided at predetermined intervals in the width direction in a state of being close to the surface of the iron wheel drum of the rolling wheel 12 toward the rear.
[0018]
[blade]
The blade 40 has a substantially arcuate shape when viewed from the side, and has substantially the same dimension as the distance between the side plates 21L and 21R so as to fit within the body frame 20 without protruding from the left and right side plates 21L and 21R when viewed from the front. , An end plate 42 attached to the rear surface of both ends in the width direction of the blade body 41, and a substantially rectangular ground plate fastened to the bottom surface of the end plate 42. 43 and a cylinder mounting bracket 45 attached to a rear surface of a central portion of the blade body 41 in the width direction.
The cylinder mounting bracket 45 is formed as two protruding pieces having a pin insertion hole 45a arranged side by side at a predetermined interval.
[0019]
The blade 40 is fixed to the lower part of the rear surface of the blade body 41 so as to be in contact with the outer surface of each end plate 42 via an elongated blade support arm 35 having an elongated shape. It is rotatably attached to the support bracket 31.
[0020]
Specifically, the tip of the blade support arm 35 is sandwiched between the end plates 31a of the arm support bracket 31, and a pin insertion hole (not shown) provided at the tip of the blade support arm 35. And the pin insertion holes 31b of the end plate 31a are aligned with each other, and the pins 48 are inserted into both holes with the spherical bearings 36 interposed in the pin insertion holes of the blade support arm 35. Is mounted so as to be rotatable with respect to the arm support bracket 31.
[0021]
The hydraulic cylinder support member 33 provided on the upper plate 26U of the cross member 25 is provided with a pin 55 so that the base end 50a of the hydraulic cylinder 50 for adjusting the position of the blade 40 can rotate. Installed. The distal end of a rod 51 of the hydraulic cylinder 50 is capable of extending and contracting forward, and a through hole (not shown) is formed at the distal end of the rod 51.
The distal end of the rod 51 is interposed between the projecting pieces of the cylinder mounting bracket 45 so that the through hole of the rod 51 and each pin insertion hole 45a of the projecting piece are aligned, and the spherical bearing 52 is fitted in the through hole. When the pin 49 is inserted in the interposed state, the tip of the rod 51 of the hydraulic cylinder 50 is attached so as to be rotatable with respect to the cylinder mounting bracket 45.
[0022]
Thus, by adjusting the rod 51 of the hydraulic cylinder 50 to a desired length, the position of the blade 40 such as the height and angle can be adjusted.
[0023]
[Effects]
The vibrating roller R of the present invention is a member constituting a part of the body frame 20, and is provided on the lower plate 26 </ b> L of the cross member 25 laid laterally in the front width direction of the pressure wheel 12 via a blade support arm 35. The blade 40 is supported. Therefore, since it is possible to prevent the blade 40 from protruding in the vehicle width direction outside the side plates 21L and 21R of the body frame 20, the rolling wheel width and the blade width can be matched as much as possible. In addition, the remaining step can reduce the area as much as possible, and it is possible to efficiently perform the rolling work or the like in a state where there is no extra room on the side.
[0024]
As described above, the preferred embodiments of the present invention have been described. However, the present invention is not limited to these embodiments, and the shape and layout of each component can be appropriately changed in design without departing from the spirit thereof. .
In particular, the rolling wheel does not need to have a tamping foot, and can be applied to a type having a traveling mechanism also on the rolling wheel side. In addition, the traveling body can be applied to a type provided with a crawler, in addition to a type traveling by driving wheels.
[0025]
【The invention's effect】
According to the vibration roller of the present invention, since the width of the rolling wheel and the width of the blade can be matched as much as possible, it is possible to reduce the untightened area.
[Brief description of the drawings]
FIG. 1 is a side view of a vibration roller of the present invention.
FIG. 2 is a plan view of the vibration roller of the present invention.
FIG. 3 is an enlarged plan view of a front portion of the vibration roller of the present invention.
FIG. 4 is a sectional view taken along line XX in FIG. 3;
FIG. 5 is a plan view of a conventional vibration roller.
FIG. 6 is a side view of a conventional vibration roller.
[Explanation of symbols]
R Vibration roller 10 Running body 11 Driving wheel 12 Rolling wheel 20 Body frames 21L, 21R Side plates (side members)
23 Rear plate 25 Cross member (widthwise member)
26U Upper plate 26L Lower plate 27L, 27R End plate 31 Arm support bracket 35 Blade support arm 40 Blade 41 Blade body 45 Cylinder mounting bracket 50 Hydraulic cylinder

Claims (1)

A vibration roller including a traveling body and a compaction wheel supported via a body frame in front of the traveling body, and a blade provided in a width direction in front of the compaction wheel,
The body frame has a pair of side members protruding from a front end of the rolling wheel, and a widthwise member laterally provided at a front end of each side member,
The vibration roller according to claim 1, wherein the blade is supported by the width direction member without protruding from the side members on both sides.

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