JPS5846961B2 - compaction roller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compaction roller used for compacting road bases and the like.

Conventionally known compaction rollers are configured in such a way that the drive of the roller itself and the rotation of the vibrating body inside the roller are provided via transmission devices protruding from the sides of the machine from a prime mover located at the top of the machine. .

In this way, driving the rollers and rotating the vibrator through the overhanging transmission device on the side of the vehicle body means that this transmission device itself cannot be moved freely, so the rollers must be moved around the central axis of the vehicle body. The problem is that the rollers cannot be fixed in any direction, and therefore the rollers themselves cannot provide a turning function to the aircraft body.

For this reason, with conventional rollers of this type, a bar bundle is provided protruding from the rear of the machine, and when turning the machine during work, the worker pulls or pushes the bar bundle horizontally against the weight of the machine. As a result, it was necessary to rotate the aircraft.

However, although such a turning operation is not a problem with a small compaction roller whose machine weight is relatively small, it becomes impossible with a large vibrating roller whose machine weight is large.

In view of the above-mentioned circumstances, the present invention has been devised so that even a relatively large vibrating compaction roller can freely rotate one of the front and rear rollers when both the front and rear rollers are provided with driving force by the drive shaft. The purpose of this invention is to provide a compaction roller.

In order to obtain a compaction roller for this purpose, 2, the present invention provides a drive shaft supported by a fixed frame of the rear roller.
Connecting to the roller side plate on the fixed frame side via a universal joint, and connecting the fixed frame and the roller side plate,
A fixed tube provided on the outer periphery of the drive shaft of the fixed frame and a fixed tube provided on the roller side plate so as to be pivotally supported by the drive shaft are configured to rotate via a vertical axis at the same position as the universal joint. Two plates projecting in parallel above the roller from the inner ends of the fixed frame and the movable frame that pivotally supports the side plate on the opposite side of the roller are aligned with the vertical axes of the fixed cylinders. Both ends of the rollers are connected rotatably by a pivot provided on the axis, and the edges of one plate are sandwiched and supported by upper and lower support roller centers protruding from the inside of the frame on the opposite side. The roller is not cantilevered but is supported by frames on both sides so that it can freely rotate relative to the fixed frame.

Next, the present invention will be described in detail based on the illustrated embodiments. In FIGS. 1 and 2, 1 is the fuselage body, 2 is a front wheel roller, 3 is a rear wheel roller, 4 is a prime mover, and 5 is a projecting part at the rear of the fuselage body. It is a steering wheel that has been adjusted.

Left and right frames 61 that support both sides of the front wheel roller 2.
6 □ are supported and connected in parallel via the anti-vibration rubber 9 at the front ends of the fuselage fixing frames 81 and 8 □ on both sides of the engine base 1 of the fuselage 1, so that the lower parts of the front wheel roller 2 and the engine base 7 are The rear wheel rollers 3 and the rear wheel rollers 3 are arranged so as to have an intersecting shape in which the arrangement positions in the front-rear direction are shifted laterally from each other.

A transmission 10 is fixed to and supported by the base 1 in front of the engine base 7.

The front wheel roller 2 is connected to a drive shaft sprocket 11 provided by passing through the side plate 6 located inside one of the fuselage fixing frames 81 in FIG. It is driven by rotation being transmitted through the chain 13.

In addition, the drive shaft sprocket 11 of the front wheel roller 2 has a third
As shown in the figure, a shaft 15 of an eccentric pendulum 14 coaxially passes through the shaft 15, and a vibration output shaft is provided on a pulley 16 provided at the end of the shaft 15 on the same surface as the drive output shaft sprocket 12 in the transmission 10. Vibration is generated by the rotation being transmitted from the pulley 17 via the belt 18.

On the other hand, the rear wheel roller 3 is pivotally supported by a movable frame 19 disposed below one body fixed frame 8□ and a body fixed frame 81 on the opposite side of this frame 8□, as shown in FIG.

That is, a drive shaft 22 pivotally supported by a body fixed frame 82 is connected to a roller side plate 26 on the fixed frame 82 side via a universal joint 21 at an intermediate portion, and is connected to a roller side plate 27 on the other movable frame 19 side and the movable frame. 19 is rotatably supported via a support shaft 24.

Note that in the illustrated embodiment, these roller side plates 26 and 27 are both side plates 2 provided directly on the roller 3.
0 and 23 through vibration isolating rubber 25 so that vibrations are absorbed.

Furthermore, in order to reinforce the support of the roller side plate 26 to the fixed frame 8□ by means other than the drive shaft 22, the fixed frame 8□ and the roller side plate 26 are connected to the fixed frame 8□.
A fixed cylinder 28 protruding from 2 so as to be fitted onto the outer periphery of the drive shaft 22, and a drive shaft 2 connected to the roller side plate 26.
2 and a fixed cylinder 29 provided so as to be pivotally supported.

That is, on the drive shaft 22 on the roller side plate 26 side, with the universal joint 21 as the center, there is a fixed tube 28 on the fixed frame 8□ side.
One end of a fixed cylinder 29 having a diameter smaller than that is rotatably supported, and both fixed cylinders 2B and 29 are coaxially overlapped with each other and are perpendicular to the drive shaft 22 at the portion where the universal joint 21 is located. They are rotatably connected via a vertical shaft 30 oriented in the same direction.

A sprocket 31 is provided at the shaft end of the drive shaft 22 passing through the fixed frame 8□, and as shown in FIG. 3, a drive output shaft sprocket 121 for driving the front wheels of the transmission 10
The drive shaft sprocket 3 is connected to the rear wheel drive drive output shaft sprocket 122 provided on the side opposite to the
1 through the chain 32, the rear wheel roller 3 is driven.

As shown in FIG. 4, on the lower surface of the engine base 7 above the rear wheel roller 3, there is a horizontal fixed plate 33 whose one end is fixed to the fixed frame 8□, and whose other end edge 331 is movable on the opposite side. A similar support plate 34 is provided to protrude from the movable frame 19 in parallel with the fixed plate 33, and both plates 33 and 34 are connected to the rollers. They are mutually supported by a rotating shaft 35 on the same axis as the fixed cylinder vertical axis 30 on the outer periphery of the drive shaft.

Furthermore, a pedestal 36 whose inner side is curved as shown in FIG. 2 is provided on the inner surface of the upper part of the movable frame 19.
As shown in FIG. 4, edges 331 of the fixing plate 33
A pair of support rollers 37 are in contact with the lower surface of the upper and lower support rollers 37 , and one support roller 38 is protruded from the center of the pedestal 36 and in contact with the upper surface of the fixed plate edge 33 .
The fixing plate edge 33□ is sandwiched between the fixing plate 38 and the fixing plate edge 33□.

The steering handle 5 protruding from the rear of the vehicle body is provided with a rotating arm 39 at the lower end of the rod that rotates in the longitudinal direction of the vehicle body by a worm 40 and a worm gear 41, and the lower end of the rotating arm 39 and the movable arm The support shafts 42 protruding from the inner surface of the upper part of the support shafts 19 are connected to each other by connecting rods 43 whose respective connecting portions are rotatable and swingable.

The compaction roller according to the present invention configured as described above,
The driving of the prime mover 4 drives the two-wheel rollers whose rotation is transmitted from the drive output shaft sprockets ``20, 12'' on both sides of the transmission 10 to the drive shaft sprockets If, 13 of the front and rear wheel rollers 2, 3.

The rotation of the front wheel roller 2 is transmitted from the transmission 10 to the eccentric pendulum shaft 15 coaxial with the drive shaft sprocket 11, and vibration is generated.The vibration of the front wheel roller 3 is caused by the left and right frames 6□, which support the roller. 6□ is connected to the fuselage frame 81, 8□ on which the prime mover 4 of the fuselage 1 is mounted via the anti-vibration rubber 9, so the vibration of the front wheel roller 2 is completely absorbed by the anti-vibration rubber 9, and is directly transmitted to the prime mover 4 direction. I can't tell you.

In addition, the rear wheel roller 3 has one side roller side plate 26 connected to the drive shaft 22 in the fixed frame 8 Further, the fixed frame 8□ and the roller side plate 26 are supported by fixed cylinders 2B and 29 provided on the outer periphery of the drive shaft 22 so that the fixed frame 8□ and the roller side plate 26 are rotated by a vertical shaft 30 located at the same position as the universal joint 21. Therefore, by moving the movable frame 19 in the longitudinal direction of the vehicle body via the rear steering handle 5, the rear wheel rollers 3 are driven and can be rotated around the vertical axis 30. It is possible to change the direction of movement freely.

Of course, in relation to the vehicle body 1, the rear wheel roller 3 is attached to the vehicle body fixing frame 8 on the drive shaft 22 side by a connecting vertical shaft 30 between the drive shaft 22 and both fixed tubes 28 and 29 provided on the outer periphery of the shaft.
The movable frame 19 side is supported by the rear steering handle 5 and the connecting rod 43, but with only these support parts, the movable frame 19 cannot be rotated.
Since the supporting force against the fixed frame 82 and the movable frame 19 is weak, a parallel fixed plate 33 and a supporting plate 34 are provided to protrude from the fixed frame 82 and the movable frame 19, respectively, so that the drawing board is aligned with the rotating axis 35 on the same axis as the vertical axis 30 of the fixed cylinder on the outer periphery of the drive shaft 22. By pivotally supporting the movable frame 19 with respect to the body 1, the supporting force of the movable frame 19 with respect to the body 1 is increased.

Furthermore, the edge 3 of the fixed plate 33 is placed inside the upper part of the movable frame 19.
By providing support rollers 37 and 38 that sandwich the movable frame 19, it is possible to suppress vertical movement of the movable frame 19 and prevent unreasonable force from acting on the pivot shaft 35.

Therefore, according to the present invention, when driving force is applied to the rear wheel rollers, it is possible not only to provide the aircraft with a stable turning function for changing course, but also to provide the rear wheel rollers with one frame. It is not supported in a so-called cantilever type, but is supported by both fixed and movable frames on both sides, so it reinforces the support strength of the fixed frame side fixed cylinder vertical shaft 30, which serves as a pivot point, and improves durability. This has the effect that it can be used as a roller.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing an embodiment of a compaction roller according to the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line I-1 in FIG. 1, and FIG. is IV-IV in Figure 1
FIG. In the figure, fuselage, 2: front wheel roller, 3: rear wheel roller, 4: prime mover, 5 steering bundle, 61.6□: front wheel roller frame, 7: engine base, 80,8□: fuselage fixed frame, 9 ': Anti-vibration rubber, 10: Transmission, 12
0.12□: Drive output shaft sprocket, 14: Eccentric pendulum, 19: Movable frame, 21: Universal joint, 22: Drive shaft, 24: Support shaft, 25: Anti-vibration rubber, 26. ．． 27: Roller side plate, 2B, 29: Fixed cylinder, 30: Vertical axis, 33: Fixed plate, 34: Support plate, 35: Swivel axis, 36: Pedestal, 37,
38: Support roller, 39: Rotating arm, 43: Connecting rod.

Claims (1)

[Claims] 1 Fixed frame of rear wheel roller 3 8. A drive shaft 22 which is pivotally supported is connected to the roller side plate 26 on the fixed frame side via a universal joint 21, and the fixed frame 8□ and the roller side plate 26 are provided on the outer periphery of the drive shaft 22 on the fixed frame 8□. A fixed cylinder 2B and a fixed cylinder 2 provided so as to be pivotally supported by a drive shaft 22 connected to a roller side plate 26.
9 is rotatably supported via a vertical shaft 30 at the same position as the universal joint 21, and the roller 3
Support plate 3 protrudes above the roller 3 from the inside of the movable frame 19, which has a side plate 27 on the opposite side pivotally supported by a support shaft 24.
4 and a fixing plate 33 protruding above the roller 3 from the inside of the fixing frame 82. ．． 29
are rotatably connected by a pivot shaft 35 coaxial with the vertical axis 30 of the fixed plate 33, and have upper and lower surfaces of the edge of the fixed plate 33 close to the movable frame 19 protruding inside the movable frame 19. A compaction roller sandwiched and supported by support rollers 37 and 38.