JPH0154482B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibrating roller that efficiently compacts roads, etc.

[Conventional technology]

Conventionally, vibration mechanisms for vibrating rollers to improve compaction efficiency have been developed by attaching an eccentric load to a rotating shaft provided on the rolling wheel along the rotation center line of the rolling wheel, and by rotating the rotating shaft. It is well known to vibrate the rolling wheels vertically with respect to the ground contact portion. However, since the vibrating roller that vibrates vertically transmits the vertical vibration through the ground, it has the disadvantage of generating vibration pollution when installed in residential areas or near facilities that are sensitive to ground vibration.

Therefore, the present applicant filed the original patent application No. 58-61408.
In the above, a rotating shaft of an eccentric mass is rotatably provided in the rolling wheel so that the center line of rotation of the rotating shaft is located on a straight line in a direction whose component is a straight line parallel to the radial direction of the rolling wheel, The eccentric position of each eccentric mass with respect to the axis of the rotating shaft is determined and rotated in the direction of the vibration-generating drive shaft of the rolling wheel, and the ground-contacting part of the rolling wheel is vibrated in a substantially horizontal plane, so that it can move up and down depending on the characteristics of the ground. The present invention discloses a vibration mechanism for a vibrating roller that does not generate vibration pollution because it has a high vibration damping efficiency compared to vibrations.

[Problem that the invention seeks to solve]

However, conventional vibrating rollers that vibrate up and down have excellent compaction performance in relatively deep areas such as lower roadbeds, so they are highly efficient for road construction, etc. away from facilities that dislike ground vibration. It has a wide range of utility as a machine.
In other words, the range of use of conventional vibrating rollers that vibrate vertically is limited depending on the construction environment, and in particular in residential areas or near facilities where ground vibration is averse, it is recommended to use static compaction rollers (smooth rollers such as macadam rollers) or vibrating rollers. In the past, construction was carried out to weaken vibrations and minimize vibration pollution. As a result, construction efficiency is poor, and there are economic burden problems such as the need to own machinery suited to the construction environment.

The present invention was devised in view of the above points, and by switching the selection means to select and use vertical vibration and horizontal vibration that does not cause vibration pollution with one machine, construction efficiency is high and the construction environment is improved. To provide an economical vibrating roller whose range of use is not limited by.

[Means for solving problems and their effects]

In order to solve the above problems, the present invention has the following means.

A vibrating roller having at least two rolling wheels, a rolling wheel having a vibration mechanism that causes vertical vibration, a rolling wheel having a vibration mechanism that causes almost horizontal vibration, and a vibration driving shaft provided in each vibration mechanism. The hydraulic motors are equipped with hydraulic motors that rotate the hydraulic motors individually, and clutches that control the hydraulic motors by supplying and cutting off the pressure oil in the hydraulic circuit that drives each hydraulic motor. a vibration driving shaft having a rotation center line on the rotation center line;
It has an eccentric element attached to each vibration generating drive shaft, and each vibration mechanism that causes horizontal vibration has a rotation center line on a straight line perpendicular to the rotation center line of the rolling wheel, and has an eccentric element attached to each outer end. A vibrating roller comprising a plurality of rotating shafts having eccentric masses and a vibration driving shaft that drives an inner end of each rotating shaft.

By adopting the above configuration, compaction work can be performed using both horizontal vibration and vertical vibration by operating the clutch and switching the hydraulic motor on one machine, making it possible to perform compaction work using both horizontal vibration and vertical vibration, making it possible to perform compaction work using both horizontal vibration and vertical vibration. It is possible to deal with both with one machine.

〔Example〕

An embodiment of the present invention will be described below based on the drawings. Figure 1 is a side view of the vibrating roller of the present invention, Figure 2 is a side view of the vibrating roller of the present invention;
The figure is a sectional view of a rolling wheel showing an example of a vibration mechanism that causes vertical vibration, Figure 3 is a sectional view of a rolling wheel showing an example of a vibration mechanism that causes horizontal vibration, and Figure 4 is an explanatory view in the direction of the arrow in Figure 3. , Fig. 5 is an explanatory view of Fig. 3 in the direction of arrows, Fig. 6
The figure is a hydraulic circuit diagram showing an example of the selection means.

As shown in FIGS. 1 to 3 and 6, the vibrating roller 1 of the present invention has a vibrating mechanism 3 for causing vertical vibration on the front wheel 2 of the rolling wheels, and a vibrating mechanism 5 for causing horizontal vibration on the rear wheel 4. Both vibrations are selected and used by a selection means (clutch 24, etc.) linked to a lever or the like in the cockpit 6. In addition, 7 is the prime mover,
It is a vehicle platform equipped with running equipment, steering equipment, etc.
8 is a frame.

As shown in FIG. 2, a vibration mechanism 3 that generates vertical vibration is attached to the front wheel 2 of the rolling wheels. That is,
Axles 9, 9 are provided on the left and right sides of the frame 8,
Suspension rubber 10 is provided within the axle 9, 9.
Mounting bodies 11, 11 are fixed via 10. On the other hand, side plates 12, 12 are provided inside the rolling wheels, and wheel axles 13, 13 are formed at the center of the side plates 12, 12. The wheel axles 13, 13 are pivotally supported by the mounting bodies 11, 11 via bearings 14, 14, 14, 14. A hydraulic motor 15 for excitation that rotates in forward and reverse directions is fixed to the mounting body 11 on the right side, and the hydraulic motor 15
The left and right wheelset 1 is connected to the output shaft of the
A vibration generating drive shaft 17 is provided within 3 and 13 and is supported by bearings 16, 16, 16. An eccentric element 18 is attached to the vibration driving shaft 17. Note that 30 is a drive motor that drives the rolling wheels.

In this way, when the vibration generating drive shaft 17 is provided concentrically with the rotation center line of the rolling wheels, and the eccentric element 18 is attached to the drive shaft 17 and the hydraulic motor 15 is rotated, the ground contact portion of the rolling wheels vibrates in the vertical direction. do.

On the other hand, as shown in FIG. 3, a vibration mechanism 5 that generates horizontal vibration is attached to the rear wheel 4 of the rolling wheels. Note that the configuration up to the hydraulic motors 15, 15a is generally the same as that for the above-mentioned vertical vibration, so the same reference numerals are given to the members having the same configuration, and a description thereof will be omitted.

Hydraulic motor 15 fixed to right mounting body 11
The output shaft of a is connected to an excitation drive shaft 17a penetrated inside the side plate 12 via a coupling ring, and a drive bevel gear 19 is attached to the tip of the excitation drive shaft 17a. Bearings 16a, 16
It is pivoted on a. On the side surface of the side plate 12, there are bearings 21,
It is pivotally supported via 21, 21, 21. A driven bevel gear 22 is provided at the inner end of each rotating shaft 20a, 20b.
a, 22b are fixed, and the driven bevel gears 22a, 2
2b meshes with the drive bevel gear 19 of the vibration driving shaft 17a. Furthermore, eccentric masses 23a, 23b are attached to the outer ends of each rotating shaft 20a, 20b. The mutual relationship between the eccentric masses 23a and 23b is such that they are eccentric in the same direction in the axial direction of the rolling wheel, and are 180 degrees opposite to each other on the radius of the rolling wheel.

With this configuration, when the rotating shafts 20a, 20b are rotated by the hydraulic motor 15a, the outer circumferential end of the eccentric mass 23a is moved in the order of C, D, E, and F around the rotation center line B in FIG. The outer peripheral end of the eccentric mass 23b rotates around the rotation center line B in the order of positions C, F, E, and D.
When the outer peripheral end of the eccentric mass 23a passes through position C during this rotation, the outer peripheral end of the eccentric mass 23b also passes through position C.
4, centrifugal force acts on the rolling wheels in the direction from B to C in FIG. Similarly, when the outer peripheral end of the eccentric mass 23a passes through the position E during rotation, the outer peripheral end of the eccentric mass 23b also passes through the position E, so that a centrifugal force in the direction from B to E acts on the rolling wheels. Furthermore, when the outer circumferential end of the eccentric mass 23a passes through position D during rotation, the outer circumferential end of the eccentric mass 23b passes through position F, so that a force that causes the rolling wheel to rotate in the G direction acts on it in FIG. . Similarly, when the outer peripheral end of the eccentric mass 23a passes through position F during rotation, the outer peripheral end of eccentric mass 23b passes through position D, so a force to rotate in the H direction (opposite to the G direction) acts on the rolling wheel. do.

When the eccentric masses 23a and 23b rotate in this way, a radial force that continuously changes direction on the horizontal plane tilts the rolling wheel and acts on the ground contact part of the rolling wheel, so that the ground contact part moves around the circumference on the horizontal plane. It vibrates in a circular or cyclical manner.

Next, a case where the clutch 24 is used as an example of the selection means will be explained based on FIG. 6.

This clutch 24 is provided in a hydraulic circuit between the vibration hydraulic motors 15, 15a of the front wheels 2 and rear wheels 4 and the hydraulic pumps 25, 25a directly connected to the prime mover E, and connects two switching valves 26, 26a and two. The relief valve 27 and 27a are configured by two relief valves 27 and 27a. In FIG. 6, the switching valve 26a on the rear wheel 4 side, where the vibration mechanism 5 for horizontal vibration is installed, is in the ON state, and the switching valve 26 on the front wheel 2 side, where the vibration mechanism 3 for vertical vibration is installed, is turned OFF. Pressure oil from the hydraulic pump 25a is supplied only to the hydraulic motor 15a on the rear wheel 4 side, and only the horizontal vibration vibration mechanism 5 is operated. Of course, by switching the lever etc. of the clutch 24,
It is also possible to operate only the vibration mechanism 3 of vertical vibration,
It is also possible to operate both vibrations in combination.
The structure of the clutch 24, the number of hydraulic pumps, etc. are not limited to the above example, and various configurations can be used depending on the combination of the hydraulic circuit and the switching valve.

In this way, when the vibration mechanism 3 that causes vertical vibration is installed on the front wheel 2 and the vibration mechanism 5 that generates horizontal vibration is installed on the rear wheel 4, horizontal vibration and vertical vibration can be selected and used by switching the clutch 24 or the like. By using horizontal vibration, it is possible to prevent vibration pollution when constructing in residential areas or near facilities that are sensitive to ground vibration, and to improve work efficiency when constructing roads, etc. that are far from residential areas or facilities that are sensitive to ground vibration. By using good vertical vibration, efficient construction can be performed. In addition, since a single machine can carry out construction using both types of vibration, the problem of economic burden can be solved.

〔Effect of the invention〕

As described above, the present invention exhibits the following excellent effects.

[] A vibrating roller having at least two or more rolling wheels, a rolling wheel having a vibrating mechanism that causes vertical vibration, a rolling wheel having a vibrating mechanism that can generate almost horizontal drive, and a vibration excitation drive provided in each vibrating mechanism. Equipped with a hydraulic motor that rotates the shaft individually and a clutch that controls the hydraulic motors separately by supplying and shutting off the pressure oil in the hydraulic circuit that drives each hydraulic motor, the system can be operated by operating the clutch. Compaction work can be performed by selecting either horizontal vibration or vertical vibration, or by appropriately combining both.

[] As a result of item [], it becomes possible to adapt to different construction environments, such as preventing vibration pollution or performing efficient compaction using a single machine, and an economical vibrating roller. can be provided.

[] By controlling the rotation speed of the hydraulic motor, it is possible to change the excitation force generated by each vibration mechanism, making it possible to perform compaction work with fine texture that matches the properties of the ground. .

[] The adaptability of the vibrating roller can be further expanded by providing three or more rolling wheels and arranging an appropriate number of vibration mechanisms that cause vertical vibration or horizontal vibration in combination with the appropriate rolling wheels.

[Brief explanation of drawings]

Figure 1 is a side view of the vibrating roller, Figure 2 is a sectional view of the front wheel with a vibration mechanism that causes vertical vibration, Figure 3 is a sectional view of the rear wheel with a vibration mechanism that causes horizontal vibration, and Figure 4. is an arrow-view explanatory diagram of Fig. 3,
The figure is an explanatory view taken in the direction of the arrow in FIG. 3, and FIG. 6 is a hydraulic circuit diagram showing an example of the selection means. 2... Front wheel, 3... Vibration mechanism that causes vertical vibration, 4... Rear wheel, 5... Vibration mechanism that causes horizontal vibration, 8... Frame, 10... Suspension rubber, 12... Side plate, 13... ...Wheel axle, 15, 15a
... Hydraulic motor, 17, 17a ... Vibration drive shaft,
18... Eccentric element, 19... Drive bevel gear, 20a,
20b...rotating shaft, 22a, 22b...driven bevel gear, 23a, 23b...eccentric mass, 24...clutch.

Claims (1)

[Claims] 1. A vibrating roller having at least two or more rolling wheels, including: a rolling wheel having a vibration mechanism that causes vertical vibration, a rolling wheel having a vibration mechanism that causes almost horizontal vibration, and each vibration mechanism. It is equipped with a hydraulic motor that individually rotates the vibration drive shaft installed in the hydraulic motor, and a clutch that controls the hydraulic motor by supplying and cutting off the pressure oil in the hydraulic circuit that drives each hydraulic motor, and generates vertical vibration. Each vibration mechanism includes a vibration drive shaft having a rotation center line on the rotation center line of the rolling wheel;
Each vibration mechanism that causes horizontal vibration has an eccentric element attached to each vibration generating drive shaft, and each vibration mechanism that causes horizontal vibration has a rotation center line on a straight line perpendicular to the rotation center line of the rolling wheel, and has an eccentric element attached to each outer end. A vibrating roller comprising: a plurality of rotating shafts having eccentric masses; and a vibration driving shaft connected to the rotating shafts via a gear mechanism provided at the inner end of each rotating shaft.