JPH08209735A - Vibration roller device of construction machinery - Google Patents

Abstract

PURPOSE: To make it possible to display the sufficient effect of compaction when levelling work is carried out by providing a vibration roller to a lower traveling body or the front end of a working attachment through a bearing arm. CONSTITUTION: An upper swiveling body 7 is provided to the upper part of a lower traveling body 5, and a working attachment 8 equipped with an arm 10 is provided to the front section of the upper swiveling body 7. In a construction machinery, a bearing arm 20 is extended to a frame fixed section 17 of the lower traveling body 5 so that it is capable of moving up and down with a dozer cylinder 22. Then, a vibration roller 26 is mounted to the front end of the bearing arm 20. If levelling work is carried out, and when a vibrator 27 of the vibration roller 26 is vibrated, the effect of compaction to the ground G is sufficiently displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating roller device mounted on construction machines such as hydraulic excavators and work vehicles.

[0002]

2. Description of the Related Art FIG. 14 is a side view of a hydraulic excavator (shown in phantom line) equipped with a compression roller device disclosed in Japanese Utility Model Laid-Open No. 6-35349. In the hydraulic excavator shown in FIG. 14, the bracket 2 provided on the dozer blade 1 supports the roller 3, and the roller 3 and the rear part of the crawler 4 wound around the lower traveling body support the front and rear of the hydraulic excavator.
The hydraulic excavator is run through the crawlers 4, and both the rollers 3 and the rear part of the crawlers 4 suppress the ground surface G.

[0003]

In one embodiment of the prior art shown in FIG. 14, since the dozer blade is provided with a simple cylindrical crushing roller, the compaction ability of the ground is very small. Therefore, since only the rear part of the crawler is grounded as a means for causing a part of the weight of the hydraulic excavator to act on the roller, running workability is not good. Further, for example, when backfilling a deep groove for burying an electric wire pipe, a gas pipe, etc., it is difficult to successively compact with a roller. Further, in another example of a conventional power shovel with a vibrating roller, which is not shown, since the vibrating roller is connected to the rear end of the upper swing body, it is difficult for the driver in the cab to see the vibrating roller. It was difficult to carry out ground leveling work. It is an object of the present invention to provide a vibration roller device for a hydraulic excavator that can solve the above problems.

[0004]

According to the present invention, there is provided a construction machine having an upper revolving structure provided on an upper portion of a lower traveling structure, and a work attachment having an arm attached to a front portion of the upper revolving structure. A vibration roller was attached to the. As a means for attaching the vibrating roller of the first embodiment, a supporting arm was extended from the lower traveling body, and the vibrating roller was attached to the tip of the supporting arm. Further, in a construction machine in which a supporting arm is extended vertically rotatably on one side of the lower traveling body as a mounting means of the vibrating roller according to the second embodiment, and a dozer blade is mounted on a tip portion of the supporting arm. ,
The vibrating roller is attached to the tip of the support arm by replacing it with a dozer blade. Further, in a construction machine as a third embodiment mounting means of the vibrating roller, a supporting arm is provided rotatably up and down on one of the front and rear sides of the lower traveling body, and a dozer blade is mounted at the tip of the supporting arm. , A supporting arm is provided on the other side of the front and rear of the lower traveling body so as to be vertically rotatable, and a vibrating roller is attached to the tip of the supporting arm, and at least one of the vibrating roller and the dozer blade is used. I did it. Further, in a construction machine in which a vibrating roller as a fourth embodiment mounting means is provided with a supporting arm extending rotatably up and down on one of the front and rear sides of a lower traveling body, and a dozer blade being mounted at the tip of the supporting arm. A bracket was fixed to the dozer blade, and a vibration roller was attached to the bracket.

Further, in the present invention, in the construction machine in which the upper revolving structure is provided on the upper part of the lower traveling structure, and the work attachment having the arm is attached to the front part of the upper revolving structure, the vibrating roller is provided at the tip of the work attachment. Installed. Further, as an embodiment mounting means for the vibrating roller, a supporting arm is connected to the tip of the work attachment so as to be vertically rotatable, and the vibrating roller is mounted to the tip of the supporting arm.

Further, according to the present invention, a support arm rotatably provided at the tip of the work attachment or a support cylinder rotatably provided at the frame fixing portion of the lower traveling body can be vertically rotated. A switching valve is provided in a supply / discharge pipe line that communicates with the hydraulic cylinder control direction switching so that the bottom side oil chamber and the rod side oil chamber of the hydraulic cylinder can be short-circuited and switched. Further, in the present invention, a plurality of protrusions for increasing the compaction degree are provided on the outer peripheral surface of the vibrating roller at predetermined intervals in the circumferential direction and the left-right direction.

[0007]

In the present invention, the supporting arm is extended to the lower traveling body as the first embodiment mounting means of the vibrating roller to the lower traveling body, and the vibrating roller is attached to the tip of the supporting arm. Therefore, by running the construction machine, it is possible to sufficiently exert the compaction effect of the vibration roller on the ground. Further, as a means for mounting the vibrating roller in the second embodiment,
Since the vibrating roller can be replaced with respect to the support arm to which the dozer blade is attached, it is possible to select and attach the required one of the above two to the existing support arm and perform the work. Also, the third of the vibrating roller
As a mounting means of the embodiment, in a construction machine in which a supporting arm is rotatably extended vertically on one side of the lower traveling body, and a dozer blade is attached to the tip of the supporting arm, When the vibrating roller is attached to the tip of the support arm extending from the other side, the dozer blade can be used for leveling and the vibrating roller can be used for compaction. Further, as a vibrating roller mounting means of the fourth embodiment in which a bracket is fixedly mounted on a dozer blade and the vibrating roller is mounted to the bracket, the supporting arm absorbs the vibration when the vibrating roller is used. Vibration is almost not transmitted to the construction machine body.
Further, when the lower traveling body is made to travel while the vibrating roller is being pulled, leveling by the dozer blade and compaction by the vibrating roller can be performed at the same time. When the ground leveling work is not necessary, the dozer cylinder can be operated to cut the ground of the blade for the dozer, and the vibrating roller can be used for independent hardening. Further, the vibrating roller can be easily attached to and detached from the dozer blade depending on the necessity of compaction work.

Further, in the present invention, the vibrating roller is attached to the arm tip portion of the work attachment mounted on the front portion of the upper swing body as the vibrating roller attaching means of the fifth embodiment. As a result, the work attachment can be operated to carry out the backfill compaction work of the deep grooves for burying such as electric conduits and gas pipes. If the support arm connecting the vibrating roller to the arm tip is not operated by the bucket cylinder of the work attachment, the support arm absorbs the vibration when the vibrating roller is used. Vibration is almost not transmitted to the construction machine body. Further, depending on whether or not the compaction work or the excavation work is necessary, a required one can be selected from the vibrating roller and the bucket, and the replacement can be easily performed. In the sixth embodiment of the vibrating roller, in which the vibrating roller is attached to the arm tip of the work attachment, the bucket cylinder mounted on the arm is expanded and contracted to move the vibrating roller up and down with respect to the arm tip. The directional position can be adjusted. In both of the above-mentioned mounting means, the supporting arm is prevented from projecting to the side end surface portion of the vibrating roller, so that when the deep groove bottom portion is compacted, it can be sufficiently compacted to the corner portion of the deep groove bottom portion. . Further, according to the present invention, the supply / discharge pipe communicating with the support arm connected to the arm tip portion of the work attachment or the hydraulic cylinder control direction switching valve for vertically adjusting the support arm connected to the frame fixing portion of the lower traveling body. A switching valve was provided in the passage so that the switching valve could be switched to the oil chamber short circuit position. As a result, when the switching valve is switched to the oil chamber short circuit position, the supply / discharge circuit of the hydraulic cylinder becomes a free circuit.
Therefore, the vibration of the vibrating roller is absorbed by the support arm, and the vibration can be prevented from being transmitted to the construction machine body. Further, in the vibrating roller according to the present invention, a plurality of protrusions are provided so as to project at predetermined intervals in the circumferential direction and the lateral direction of the outer peripheral surface of the vibrating roller.
As a result, when the compacting operation is performed, the above-mentioned projection portion is hard to be embedded in the ground, and the ground can be compacted deeply, which is effective when the groove is backfilled.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a first embodiment of the present invention. In the figure, 5 is a lower traveling body of the hydraulic excavator, 6 is a pair of crawlers wound around the lower traveling body 5, 7 is an upper revolving body provided above the lower traveling body 5, and 8 is an upper revolving body. A work attachment attached to the front part of the body 7,
9 is a boom of the work attachment 8, 10 is an arm, 1
1 is a bucket which is a work tool for excavation, 12 is an idler link, 13 is a push rod, 14 is a boom cylinder,
15 is an arm cylinder, 16 is a bucket cylinder, 17
The frame fixing portion of the lower traveling body 5, 18 is a supporting arm fixed to the frame fixing portion 17, 21 is a dozer cylinder mounting bracket fixed to the supporting arm 20, 22 is a dozer cylinder, and 23, 24 and 25 are respectively coupled. Pins for
Reference numeral 26 is a vibrating roller, 27 is an exciter (not shown in detail) provided inside the vibrating roller 26, 28 is a roller shaft, and G is the ground. Next, the configuration and operation of the vibrating roller device according to the first embodiment of the present invention will be described with reference to FIG. In the present invention, the support arm 20 is extended to the frame fixing portion 17 of the lower traveling body 5 so as to be vertically rotatable by the dozer cylinder 22, and the vibrating roller 26 is attached to the tip end of the support arm 20. As a result, the vibrator 27 of the vibrating roller 26 is vibrated when the hydraulic excavator is run for leveling work, so that the compaction effect on the ground G can be sufficiently exerted.

Next, FIG. 2 is a side view of the essential part of a hydraulic excavator equipped with a vibrating roller device according to a second embodiment of the present invention. In the figure, the same reference numerals are given to those using the same components as the hydraulic excavator having the vibration roller device of the first embodiment shown in FIG. 29 is a dozer support arm for mounting a dozer blade (described later),
Reference numeral 21a denotes a dozer cylinder mounting bracket fixed to the dozer support arm 29, 30 denotes a vibrating roller support arm, 31 denotes a base bracket of the vibrating roller support arm 30, and 32 denotes a tip portion of the dozer support arm 29. It is a removable pin that connects the base bracket 31 of the vibrating roller support arm 30. The pin holes 58 and 59 are pin holes used when the dozer blade is mounted. FIG. 3 is a plan view of an essential part seen from AA in FIG.
FIG. 4 is a plan view of relevant parts showing a state in which the vibrating roller 26 in FIG. 3 is replaced with the dozer blade 33.
In the figure, 34 is a base bracket of the dozer blade 33. Next, the configuration and operation of the vibrating roller device according to the second embodiment of the present invention will be described with reference to FIGS. In the present invention, as shown in FIG. 4, the base bracket 31 of the vibrating roller support arm 30 can be replaced with the tip of the dozer support arm 29 to which the dozer blade 33 is attached. As a result, a desired one of the vibrating roller 26 and the dozer blade 33 can be selected and attached to the existing dozer support arm 29 of the lower traveling body 5 to perform the work.

Next, FIG. 5 is a side view of a partially cutaway essential part of a hydraulic excavator equipped with a vibrating roller device according to a third embodiment of the present invention. In the figure, the same reference numerals are given to those using the same components as the hydraulic excavator having the vibration roller device of the first embodiment shown in FIG. 5a is an undercarriage,
Reference numeral 35 denotes a dozer blade provided for the frame fixing portion 17a of the lower traveling body 5a, 36 denotes a support arm,
37 is a dozer cylinder. Next, the configuration and operation of the vibrating roller device according to the third embodiment of the present invention will be described with reference to FIG. In the present invention, the support arm 20 is attached to the frame fixing portion 17a of the lower traveling body 5a to which the dozer blade 35 is attached and the frame fixing portion 17 on the opposite side in the front-rear direction from the hydraulic cylinder (the same as the dozer cylinder 22 in FIG. 1). Was used), and the vibrating roller 26 was attached to the tip of the support arm 20. As a result, the dozer blade 35 is used for leveling, and the vibrating roller 2
The compaction work can be carried out at 6.

Next, FIG. 6 is a partial cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a fourth embodiment of the present invention. In the figure, the same reference numerals are given to those using the same components as the hydraulic excavator having the vibration roller device of the first embodiment shown in FIG. 5b is an undercarriage,
35 'is a dozer blade provided for the frame fixing portion 17b of the lower traveling body 5b, 36' is a support arm, 37 'is a dozer cylinder, 38 is a dozer blade, and a bracket fixed to the upper part of 35'. , 39 is a support arm, 26 is a vibrating roller, 40 is a detachable pin connecting the base end of the support arm 39 to the bracket 38, and an arrow R indicates the backward direction of the lower traveling body 5b. Next, the configuration and operation of the vibrating roller device according to the fourth embodiment of the present invention will be described with reference to FIG. In the present invention, the bracket 38 is fixed to the upper portion of the dozer blade 35 ', and the vibrating roller 26 is attached to the bracket 38 via the support arm 39. As a result, when the vibration roller 26 is used, the support arm 39 absorbs the vibration, and the vibration is hardly transmitted to the hydraulic excavator body. When the lower traveling body 5b is run while the vibrating roller 26 is pulled, leveling by the dozer blade 35 'and compaction by the vibrating roller 26 can be performed at the same time. When the ground leveling work is not required, the dozer cylinder 37 'can be operated to cut the ground of the dozer blade 35', and the vibrating roller 26 can be used for independent compaction. Further, the vibrating roller 26 can be easily attached to and detached from the dozer blade 35 'by inserting and removing the pin 40 depending on the necessity of compaction work.

Next, FIG. 7 is a partially cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a fifth embodiment of the present invention. In the drawing, the same reference numerals are given to those using the same constituent elements as the hydraulic excavator in the first embodiment shown in FIG. 1 and the third embodiment shown in FIG. Reference numeral 41 is a support arm, 42 is a vibrating roller, 43 is a roller shaft of the vibrating roller 42, and 44 is a pin that detachably fits the support arm 41 to the tip of the arm 10. FIG. 8 is a plan view of an essential part viewed from B of FIG. FIG. 9 is a modification diagram of the support arm 44 and the vibrating roller 42 in FIG. In the figure, 41 'is a support arm, 42' is a vibrating roller, and 43 '.
Is the roller shaft of the vibrating roller 42 ', and 44' is the support arm 4
The pin 1'is detachably fitted to the tip of the arm 10. Next, the configuration and operation of the vibrating roller device according to the fifth embodiment of the present invention will be described with reference to FIGS. In the present invention, the arm 10 of the work attachment 8 of the hydraulic excavator is
A base end portion of a support arm 41 is connected to the tip end portion by a pin 44 so as to be vertically rotatable, and a plurality of vibrating rollers 42 are attached to the tip end portion of the support arm 41. As a result, the work attachment 8 can be operated to perform the backfill compaction work of the deep grooves for burying, such as electric conduits and gas pipes. Further, as shown in FIG. 7, the tip end portion of the push rod 13 is not connected so that the bucket cylinder 16 is not acted on the support arm 41. 41 is absorbed, and almost no vibration is transmitted to the hydraulic excavator body. Further, depending on whether or not the compaction work or the excavation work is necessary, the vibration roller 42
A desired one can be selected from the buckets (shown in FIG. 7) and the bucket 11 (shown in FIG. 1) for easy replacement. Further, since the vibrating rollers 42 and 42 are arranged so as not to project the portion of the support arm 41 on the outer side end surface portion thereof,
When compacting the deep groove bottom portion (not shown), it is possible to sufficiently compact the corners of the deep groove bottom portion.
Although not shown in FIGS. 7 to 9, if the supporting arm is projected to the outer side end surface portion of the vibrating roller (for example, the supporting arm 30 shown in FIG. 3), the vibrating roller is formed. Can be manufactured at low cost.

Next, FIG. 10 is a side view of the essential parts of a hydraulic excavator equipped with a vibrating roller device according to a sixth embodiment of the present invention.
In the figure, the same reference numerals are given to those using the same constituent elements as the hydraulic excavator having the vibrating roller device of the fifth embodiment shown in FIG. 7. In the vibrating roller device according to the sixth embodiment of the present invention, as shown in FIG.
The base end portion of the support arm 45 is connected to the tip end portion of the arm 10 by a pin 44 so as to be vertically rotatable, and the tip end portion of the push rod 13 is connected to the intermediate portion of the support arm 45 in the front-rear direction by a pin 46. The vibrating roller 42 was attached to the tip of the support arm 45. As a result, the bucket cylinder 16 mounted on the arm 10 is expanded and contracted to adjust the vertical position of the vibrating roller 42 with respect to the tip of the arm 10 via the push rod 13 and the support arm 45.

Next, FIG. 11 shows a hydraulic cylinder (a bucket cylinder 16 shown in FIG. 10, a dozer cylinder 22 shown in FIGS. 1, 2 and 5, etc.) for vertically rotating a support arm for mounting a vibration roller. (Hereinafter, the bucket cylinder 16 in FIG. 10 will be described as a representative). In the figure, 47 is a directional control valve for controlling a bucket cylinder, 48 is a directional control valve which is switched by a vibration roller rotation signal, 49 is a solenoid of the directional control valve 48, 50 is a manually operated switch provided in an electric circuit of the solenoid 49, 5
1 is a main pump. Next, the configuration and operation of the hydraulic circuit according to the vibrating roller device of the present invention will be described with reference to FIG. In the present invention, the supply / discharge circuit (52-52 ′, 5) that connects the bucket cylinder 16 that adjusts the support arm 45 for vertical rotation and the bucket cylinder control direction switching valve 47.
3-53 '), the switching valve 48 that enables short-circuit switching between the bottom side oil chamber 54 and the rod side oil chamber 55 of the bucket cylinder 16
Is provided and configured. As a result, when the switch 50 is turned on as required when performing the compacting work using the vibrating roller 42, the solenoid 49 is energized and the switching valve 48 switches from the supply / discharge opening position (b) to the oil chamber short-circuit position (a). . As a result, when the vibrating roller 42 is used, the supply / discharge circuit on the bucket cylinder 16 side becomes a free circuit. Therefore, the support arm 45 of the vibrating roller 42 is in a state of being absorbed, so that the vibration can be prevented from being transmitted. Although not shown, it is possible to provide a means for detecting the vibration of the vibrating roller and automatically switch the switching valve 48 based on a signal from the detecting means.

Next, FIG. 12 shows a vibrating roller according to the present invention (vibrating roller 42 shown in FIG. 7 and vibrating roller 2 shown in FIG. 1).
6 and the like are described above) Other Embodiments Vibrating roller 5
It is a front view showing 6. In the figure, reference numeral 57 denotes a plurality of protrusions provided on the outer peripheral surface of the vibrating roller 56. FIG.
3 is a side view seen from C of FIG. Next, the configuration and operation of the vibrating roller 56 according to the present invention will be described with reference to FIGS. In the present invention, the plurality of protrusions 57
Of the vibrating roller 56 are provided so as to project at predetermined intervals k and l in the circumferential direction and the lateral direction of the outer peripheral surface of the vibrating roller 56. As a result, the above-mentioned projection 57 is embedded in the ground and the ground can be deeply compacted, which is effective when the groove is backfilled.

[0017]

According to the present invention, when the hydraulic excavator performs leveling work on uneven ground, or when backfilling deep grooves, the present invention is applied to the lower traveling body of the hydraulic excavator or the front end of the work attachment. Attach the vibrating roller device of
Cooperative compaction work can be performed by operating the hydraulic excavator. In the vibrating roller device of the first embodiment of the present invention, the supporting arm is extended to the lower traveling body, and the vibrating roller is attached to the tip of the supporting arm. Since the vibrating roller rotates with vibration, the compaction effect of the vibrating roller on the ground can be sufficiently exhibited by running the hydraulic excavator. Further, in the vibrating roller device according to the second embodiment of the present invention, the vibrating roller can be replaced with respect to the support arm to which the dozer blade is attached. You can select and install and work. Further, in the vibrating roller device according to the third embodiment of the present invention, in the hydraulic excavator in which the dozer blade is attached to the tip end portion of the support arm extending from the crawler on one side of the front and rear sides of the lower traveling body, the other side on the opposite side from the above Since the vibrating roller is attached to the tip of the supporting arm extending from the side, the dozer blade can be used for leveling and the vibrating roller for immediate compaction. Further, in the vibrating roller device according to the fourth embodiment of the present invention,
Since the bracket was fixed to the dozer blade and the vibrating roller was attached to the bracket via the support arm, the support arm absorbs the vibration when using the vibrating roller, and Vibration is hardly transmitted. Further, when the lower traveling body is made to travel while the vibrating roller is being pulled, leveling by the dozer blade and compaction by the vibrating roller can be performed at the same time. Alternatively, when excavation work is performed with the position of the vibrating roller on the rear side of the upper swing body, more stable vehicle body stability of the hydraulic excavator can be secured. When the ground leveling work is not required, the dozer cylinder can be operated to ground the dozer blade and the vibrating roller can be used for independent compaction. Further, the vibrating roller can be easily attached to and detached from the dozer blade depending on the necessity of compaction work. Further, in the vibrating roller device according to the fifth embodiment of the present invention, the vibrating roller is attached to the arm tip portion of the work attachment mounted on the front portion of the upper swing body. As a result, the work attachment can be operated to carry out the backfill compaction work of the deep grooves for burying such as electric conduits and gas pipes. Since the bucket cylinder of the work attachment is not acted on the support arm connecting the vibrating roller to the arm tip, the support arm absorbs the vibration when the vibrating roller is used. And the vibration is hardly transmitted to the hydraulic excavator body. Further, depending on whether or not the compaction work or the excavation work is necessary, a required one can be selected from the vibrating roller and the bucket, and the replacement can be easily performed. Further, in the vibrating roller device according to the sixth embodiment of the present invention, the supporting arm is connected to the arm tip of the work attachment so as to be vertically rotatable, and the vibrating roller is attached to the tip of the supporting arm. By expanding and contracting the bucket cylinder that is
The vertical position of the vibrating roller with respect to the tip of the arm can be adjusted. In the vibrating roller device of the fifth and sixth embodiments, the supporting arm can be sufficiently compacted without protruding from the side end surface portion of the vibrating roller. Further, in the present invention, a hydraulic cylinder for vertically adjusting the support arm connected to the arm tip portion of the work attachment or the support arm connected to the frame fixing portion of the lower traveling body, and the hydraulic cylinder control direction switching valve are provided. A switching valve is provided in the communicating supply / discharge pipe line so that the switching valve can be switched to the oil chamber short-circuit position. As a result, when the switching valve is switched to the oil chamber short circuit position, the supply / discharge circuit of the hydraulic cylinder becomes a free circuit. Therefore, the vibration of the vibrating roller is absorbed by the support arm, and the vibration can be prevented from being transmitted to the hydraulic excavator body. Further, in the vibrating roller according to the present invention, a plurality of protrusions are provided so as to project at predetermined intervals in the circumferential direction and the lateral direction of the outer peripheral surface of the vibrating roller. As a result, when the compacting operation is performed, the above-mentioned protruding portion is difficult to be embedded in the ground, and the ground can be compacted deeply, which is effective when the groove is backfilled.
As described above, since the vibrating roller device of the present invention is mounted on the lower traveling body side or the work attachment side of the hydraulic excavator, the driver in the cab always performs a safe and accurate work while visually observing the vibrating roller. be able to.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a first embodiment of the present invention.

FIG. 2 is a partial cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a second embodiment of the present invention.

FIG. 3 is a plan view of relevant parts as seen from AA in FIG.

FIG. 4 is a plan view of relevant parts showing a state in which the vibrating roller in FIG. 3 is replaced with a dozer blade.

FIG. 5 is a partially cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a third embodiment of the present invention.

FIG. 6 is a partially cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a fourth embodiment of the present invention.

FIG. 7 is a partially cutaway side view of a hydraulic excavator equipped with a vibrating roller device according to a fifth embodiment of the present invention.

FIG. 8 is a plan view of an essential part seen from B of FIG.

9 is a modification view of the support arm and the vibrating roller in FIG.

FIG. 10 is a side view of essential parts of a hydraulic excavator equipped with a vibrating roller device according to a sixth embodiment of the present invention.

FIG. 11 is a circuit diagram of essential parts of a hydraulic cylinder for a support arm according to the vibrating roller device of the present invention.

FIG. 12 is a front view showing a vibrating roller according to another embodiment of the present invention.

FIG. 13 is a side view seen from C in FIG.

FIG. 14 is a side view of a hydraulic excavator equipped with a roller device according to an embodiment of the prior art.

[Explanation of symbols]

1,3,35,35 'Blade for dozer 4,6 Crawler 5,5a, 5b Lower traveling body 7 Upper revolving body 8 Work attachment 10 Arm 16 Bucket cylinder 17,17a, 17b Frame fixing part 20,29,30,36 , 36 ', 39, 41, 45
Support arm 22,37 Dozer cylinder 26,42,42 ', 56 Vibratory roller 47 Bucket cylinder control direction switching valve 48 Switching valve 57 Protrusion

Claims (9)

[Claims] 1. An upper revolving structure is provided above the lower traveling structure,
A vibrating roller device for a construction machine, wherein a vibrating roller is attached to the lower traveling body in a construction machine in which a work attachment having an arm is attached to a front portion of the upper swing body. 2. The vibrating roller device for a construction machine according to claim 1, wherein a supporting arm is extended from the lower traveling body, and the vibrating roller is attached to a tip portion of the supporting arm. Shaking roller device for construction machinery. 3. A construction machine in which a support arm is rotatably provided on one of the front and rear sides of a lower traveling body so as to be vertically rotatable, and a dozer blade is attached to the tip of the support arm. In addition, the vibrating roller device for a construction machine is characterized in that the vibrating roller is attached to the blade for a dozer. 4. A construction machine in which a supporting arm is rotatably provided on one side of the front and rear of the lower traveling body so as to be vertically rotatable, and a dozer blade is attached to a tip portion of the supporting arm. A support arm is provided on the other side of the support so as to be rotatable up and down, a vibration roller is attached to the tip of the support arm, and at least one of the vibration roller and the dozer blade is used. Vibrating roller device for construction machinery. 5. A construction machine in which a support arm is provided on one side of the front and rear of a lower traveling body so as to be vertically rotatable, and a dozer blade is attached to a tip portion of the support arm. A vibrating roller device for a construction machine, in which a vibrating roller is fixed to the bracket and a vibrating roller is attached to the bracket. 6. An upper revolving structure is provided above the lower traveling structure,
A vibrating roller device for a construction machine, wherein a vibrating roller is attached to a tip portion of the work attachment in a construction machine in which a work attachment having an arm is attached to a front portion of the upper swing body. 7. A vibrating roller device for a construction machine according to claim 6, wherein a support arm is connected to the tip of the work attachment so as to be vertically rotatable, and the vibrating roller is attached to the tip of the support arm. A vibrating roller device for construction machinery, which is characterized by being attached. 8. A vibration roller device for a construction machine according to claim 1, 2, 3, 6 or 7, wherein a hydraulic cylinder for vertically adjusting a support arm and a directional control valve for controlling the hydraulic cylinder are provided. A vibrating roller device for a construction machine, wherein a switching valve is provided in a supply / discharge pipe line communicating with the oil pressure cylinder so that the bottom side oil chamber and the rod side oil chamber of the hydraulic cylinder can be switched between short-circuited. 9. The vibrating roller device for a construction machine according to claim 1 or 2, wherein a plurality of protrusions for increasing the degree of compaction are provided on the outer peripheral surface of the vibrating roller in the circumferential direction. A vibrating roller device for a construction machine, wherein the vibrating roller device is provided so as to project in the left-right direction at predetermined intervals.