JP2908310B2 - Driving device for rolling machine having tire rolling wheel and tire roller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device for a compacting machine for compacting a road surface such as a road.

[0002]

2. Description of the Related Art Conventionally, when compacting a road surface in pavement work of a road or the like, a rolling machine is generally used. There is a tire roller provided with a tire rolling wheel. The rolling wheel (tire) of this tire roller is
It is driven by a driving device provided in the tire roller body, and all the rolling wheels including the driven rolling wheel run on the road surface to be compacted, and are compacted by the weight of the tire roller. is there.

[0003] As a prior art of this type of driving device for a rolling machine, there is one disclosed in Japanese Utility Model Laid-Open Publication No. 6-49505. This driving device forms a rear wheel as shown in FIG. The axle of the tire rolling wheel t is divided into right and left sides with respect to the center line in the vehicle width direction, and the bracket 52 extends downward from the chassis 51 side to an intermediate portion between the left tire rolling wheel t and the right tire rolling wheel t. A hydraulic motor 54 is provided on a motor mounting frame 53 attached to the bracket 52, and the left tire rolling wheel t or the right tire rolling wheel t is mounted on an output shaft of these hydraulic motors 54, that is, an axle. The left rolling wheel t and the right rolling wheel t are separately driven so as to generate a differential between the left and right rolling wheels when turning to perform uniform rolling. is there.

However, the above-described drive device has a structure in which each of the right and left tire rolling wheels t and the hydraulic motor 54 are supported by the bracket 52 provided between the left and right tire rolling wheels t and the right or left tire rolling wheels t. Focusing on the rolling wheels, the cantilever structure is provided by a bracket 52 provided at the center, and the distance between the supporting portion and the tire rolling wheel at the side end is long. Moment acts. Accordingly, the structure for supporting the chassis 51 is disadvantageous in strength. Therefore, in order to provide the bracket 52 with sufficient strength,
The structure at the center of the chassis 51 must also have a structure with sufficient strength. For this reason, each member is large and the structure is complicated, so that a large amount of labor and time are required for manufacturing and the like, and the productivity is also reduced.

Further, since the motor mounting frame 53 provided at the tip of the bracket 52 functions as a strength member for supporting the tire rolling wheel t, the motor mounting frame 53 has a sufficient strength. It is also necessary to In addition, since the motor mounting frame 53 functions as a strength member, an opening for inspection or the like may not be provided at an arbitrary place. In this case, the motor mounting frame 53 is provided inside the motor mounting frame 53. Maintenance and inspection of the provided hydraulic motor 54 becomes very difficult.

Further, since the outer and inner tire rolling wheels t are mounted coaxially as shown in FIG. 6, when the inner tire rolling wheel t is removed, the outer tire rolling wheel t must be removed. The pressure wheel t must also be removed, so that replacing only the inner tire rolling wheel t requires a great deal of time and effort.

In the case of this type of tire roller, since only the rear wheels are driven and the front wheels are not driven as driven wheels, as shown in FIG. The rolling wheel t smoothly rolls down the front asphalt or the like by rolling it down, and the front wheel rolling wheel t serving as a driven wheel has a front asphalt or the like as shown in FIG. 5 (b). Since rolling is performed in a state of being partially lifted (pushed up), smooth and smooth rolling cannot be performed. For this reason, when paving with asphalt or the like, inefficient and difficult work of intruding from the rear wheel side and performing rolling compaction in a reverse state is inevitable.

The present invention has been made in view of the above-mentioned problems, and it is a first object of the present invention to provide a driving device for a rolling machine having a tire rolling wheel capable of stably supporting a traveling motor together with the tire rolling wheel. It is a second object of the present invention to provide a tire roller capable of performing a smooth and smooth rolling operation by advancing during rolling operation.

[0009]

According to a first aspect of the present invention, there is provided a driving device for a rolling machine having a tire rolling wheel.
In a driving device for a rolling machine having tire rolling wheels on the left and right with respect to the center line in the vehicle width direction, a supporting member for separately supporting the left and right tire rolling wheels is provided on the rolling machine, respectively. A traveling motor having an output shaft on the left and right sides is attached to the support member, and a tire rolling wheel is attached to each of the left and right output shafts of the traveling motor.
Install a parking brake on the output shaft where the tire rolling wheels are mounted,
Open the parking brake release opening with the outer tire pressure wheel
It is provided on the eel .

With this configuration, the left and right tire rolling wheels are separately supported by the support members with respect to the center line in the vehicle width direction, and the running motors of the traveling motors disposed on the respective support members are separately supported. Tire rolling wheels are attached to the left and right output shafts, respectively. As a result, the left and right tire rolling圧輪can be supported in a balanced and bending small structural mechanics advantageous conditions of the moment, yet with inspection and maintenance is facilitated construction, also, a hydraulic system failure, etc. Ki
The parking brake is released even if the
It has an excellent construction because it can be easily
Will be successful.

Further, according to the pneumatic tire roller according to the invention of the claims 5, wherein the front wheels which is disposed the tire rolling圧輪to the left and right with respect to the vehicle width direction of the center line, integrally rotate around the kingpin In the tire roller configured to have a steering function, a support member for separately supporting the left and right tire rolling wheels is provided, and at least one of the support members has an output shaft on the left and right. A motor is mounted, and tire rolling wheels are respectively attached to the left and right output shafts of the traveling motor, and the outer side of the traveling motor is mounted .
Install a parking brake on the output shaft where the tire rolling wheels are mounted,
Open the parking brake release opening with the outer tire pressure wheel
It is characterized in that the front wheels are provided as drive wheels by being provided on the wheels.

With this configuration, the front wheel of the tire roller can be used as a drive wheel. Therefore, even when the asphalt or the like is rolled, the roll is smoothly and smoothly rolled in the forward state without the above-described inconvenience. It becomes possible. Therefore, since the operator can perform the rolling work by moving forward, the working efficiency is greatly improved, and the operator is also released from the work in an unreasonable posture.
In addition, if the hydraulic system stops due to a failure etc.
Release the parking brake from outside the body of the compaction machine.
This is an excellent configuration in that it can be easily performed.

[0013]

According to a first aspect of the present invention, there is provided a driving device for a rolling machine equipped with a tire rolling wheel, wherein a service brake is provided on one output shaft of a traveling motor. If a parking brake is provided on the other output shaft, and the parking brake and the service brake are integrally formed with the traveling motor, the traveling motor, the parking brake, and the service brake can be formed compactly. The space for inspection and maintenance between the tires is increased, making inspection and maintenance easier.

[0014]

[0015] In the driving device of the compaction machine equipped with a tire rolling圧輪of claim 1 or 2, wherein, as in the driving apparatus according to claim 3, facing to the left and right with respect to the vehicle width direction of the center line The distance (L ₂ ) between the inner side surface of one tire rolling wheel and the end face of the mounting portion of the other tire rolling wheel of both inner tire rolling wheels is determined by the width dimension (L ₁ ) of the tire rolling wheel. ), The inner tire rolling wheel can be removed from the center of the rolling machine, and the inner tire rolling wheel can be replaced very easily and quickly.

Further, in a driving device for a rolling machine equipped with a tire rolling wheel according to any one of claims 1 to 3 , a traveling motor is provided as in the driving device according to claim 4 . When constituted by a hydraulic motor having a piston that operates in the radial direction, the dimension of the traveling motor in the output shaft direction can be made as small as possible. As a result, the traveling motor can be arranged between adjacent narrow tire rolling wheels. Can be easily arranged.

Further, in the tire roller according to the fifth aspect , like the tire roller according to the sixth aspect, a support member for separately supporting the left and right tire rolling wheels on the chassis side is provided, and the support member is provided on the support member. A traveling motor having an output shaft on the left and right is attached to each, and on each of the left and right output shafts of the traveling motor,
The same operation and effect as those of the first aspect of the invention can be obtained if the driving device to which the tire pressure wheels are attached and the brake device is provided on at least one output shaft side is a driving device for the rear wheels. In addition, since the vehicle is also driven by the front wheels, the traveling motor attached to the rear wheels, which was conventionally the only driving wheel, can be made smaller, which facilitates inspection and maintenance of the rear wheels. Needless to say, since the front wheels may be small-sized traveling motors, there is no problem as in the case where the front wheels are constituted by driven wheels.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the first aspect of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a driving device of a rolling machine (tire roller) provided with a tire rolling wheel according to the first invention of the present application. As shown in FIG. Brackets 2 as support members are provided on the left and right at symmetrical positions with respect to the direction center line C, and the casings 3c of the traveling motors 3 are respectively supported by the brackets 2 provided on the left and right.

The traveling motor 3 supported by the left bracket 2 will be described as an example. This traveling motor 3 has left and right output shafts 3a and 3b, that is, the output shaft 3
In this example, a parking brake 4 (negative brake) is provided on the outer output shaft 3a, and a wheel 5 of a tire rolling wheel T is provided outside the parking brake 4 in this example. Is provided. A release opening 5a for manually releasing the parking brake is provided in the wheel 5 of the outer tire pressure wheel T. From the opening 5a, for example, a bolt is screwed into the parking brake 4 so that the parking brake 4 is released. Is configured to be released.

A service brake 6 is provided on the output shaft 3b inside the traveling motor 3, and a tire rolling wheel T is provided inside the service brake 6.
In this example, the end face of the wheel locking bolt 5b fixing the wheel 5 of the inner tire rolling wheel T to the inner output shaft 3b, and the inner tire rolling wheel T supported by the bracket 2 on the right side of the center line C. Distance L ₂ between the inner side of
It is configured to be wider than the width L ₁ of the tire rolling圧輪T, thereby being a dimensional relationship such that it can be removed inside the tire rolling圧輪T from the central portion.

The traveling motors 3 provided on the brackets 2 on both sides are preferably hydraulic motors. If the motors are hydraulic motors, the left and right motors 3 as shown in the hydraulic circuit diagram of FIG.
Is configured as a parallel circuit with respect to the pump 7, so that the road surface resistance of the tire rolling wheel T on the inner wheel side (the side that becomes the inner wheel when the vehicle turns relative to the center line C) during turning of the rolling machine increases, and the wheel rotates. Is slower, more pressure oil flows from the pump 7 to the hydraulic motor 3 on the outer wheel side (the side that becomes the outer wheel when the vehicle turns with respect to the center line C), and the tire rolling wheel T on the outer wheel rotates faster. A so-called differential function is exhibited to enable smooth turning.

Further, by using a hydraulic motor having a type in which a piston operates in a radial direction, the size of the traveling motor 3 in the output axis direction can be greatly reduced as compared with a conventional type in which a piston operates in an axial direction. Therefore, it is possible to easily secure a space for installing the traveling motor 3 even between narrow tire pressure wheels T such as tire rollers. Furthermore, if the traveling motor 3 is made compact,
Maintenance and inspection can be easily performed by effectively utilizing the space between the tire rolling wheels T.

In this embodiment, the service brake 6 is provided on the output shaft 3b inside the traveling motor 3, and the parking brake 4 is provided on the outside output shaft 3a.
The service motor 6 and the service brake 6 are formed integrally with the travel motor 3, so that the travel motor 3 and both brakes 4, 6 are formed more compact as a whole. In addition,
In the figure, G indicates a road surface (rolling surface).

According to the driving device for a rolling machine configured as described above, the tire rolling wheel can be driven by the following operation.

That is, the tire rolling wheels T provided on the left and right with respect to the center line C are directly driven by the traveling motor 3 attached to the separate brackets 2 provided on the left and right of the chassis 1, and are driven by the driving machine 3. Even at the time of turning, the left and right independent running motors 3 exhibit a differential function, so that a smooth compacting operation can be performed.

At this time, the left and right tire rolling wheels T with respect to the center line C are separately supported on the chassis 1 by the respective brackets 2, and the tire rolling wheels T are respectively provided on the outside and inside of each of the brackets 2. Since they are provided so as to face each other, the bending moment from each tire rolling wheel T acting on the bracket 2 is also reduced, and a load is applied to the bracket 2 symmetrically. The strength as a strength member for supporting can be set low, and a stable supporting structure can be obtained.

In this type of compacting machine, the parking brake 4 having a so-called fail-safe function of releasing the brake by applying hydraulic pressure is provided, so that the hydraulic system stops due to a failure or the like. In this case, the hydraulic pressure cannot be applied, and the release of the parking brake 4 is troublesome.

However, if the rolling machine according to the present embodiment is configured as described above, even in such a case, if it becomes necessary to move the compacting machine, the tire rolling wheel from the outside of the vehicle may be used. Release opening 5 provided in wheel 5 of T
The parking brake 4 can be released by, for example, screwing a bolt from a.

In this embodiment, the parking brake 4 and the service brake 6 are provided on the rear wheel.
For example, the parking brake 4 may be provided on the front wheel and the service brake 6 may be provided on the rear wheel, or the reverse configuration may be adopted.

In the embodiment described above, the traveling motor 3
Are fixed from the inside of the bracket 2, but if the traveling motor 3 is fixed from the outside of the bracket 2, maintenance and inspection of the traveling motor 3 can be performed more easily.

Next, a second embodiment of the present invention will be described with reference to FIG. That is, this embodiment is an example in which the above-described drive device is provided on the front wheels. FIG. 3 is a plan sectional view showing a configuration of a front wheel portion of a rolling machine (tire roller) in which a drive device similar to that of FIG. In FIG.
Is a support member for supporting the front wheels so as to be steerable. In this embodiment, the support member has a U-shape in plan view. A traveling motor 13 composed of a hydraulic motor is disposed at a U-shaped tip of the support member 12. The traveling motor 13 is basically the same as the traveling motor 3 in FIG. In other words, it is constituted by a hydraulic motor of a type in which a piston operates in a radial direction. However, this 2
The traveling motor 13 on the right side in FIG. 3 among the traveling motors 13 is a traveling motor having only the output shaft 13a. However, if the front wheel F has four tire rolling wheels T
Needless to say, in the case of a tire roller of the type provided with the above, the right running motor 13 also has a type provided with output shafts on the left and right sides.

The output shaft 1 of the traveling motor 13
Each of the traveling motors 13 is integrally formed with a parking brake 4 and a service brake 6. Also in this embodiment, the parking brake 4 is manually released from the left side of the traveling motor 13, and the parking brake 4 is located on the right side of the traveling motor 13. Each of them is arranged and configured to be easily released by simply screwing a bolt or the like from the outside of the vehicle. Therefore, the release openings 5a are formed in the wheels 5 of the tire pressure wheels T at both ends.

A connecting member 12A for connecting to the chassis 1 is integrally formed on the U-shaped back side of the supporting member 12, and a portion of the connecting member 12A at a middle portion in the longitudinal direction is provided with: An insertion hole 12b for a king pin 18 serving as a rotation center of steering is formed. By inserting the king pin 18 into the insertion hole 12b, the support member 12 is configured to be rotatable about the king pin 18 with respect to the chassis 1 side. You. The rotation is performed by pivotally connecting the tip of the rod 19a of the hydraulic cylinder 19 for steering to the connection hole 12a formed at the end of the connection member 12A.
By the expansion and contraction operation of the hydraulic cylinder 19, the connecting member 12A rotates (oscillates) about the king pin 18 and can be steered. The hydraulic cylinder 19 is operated by the operator in the driver's seat to operate the hydraulic pump 7 (FIG. 3) via a switching valve 20 for steering.
Or see FIG. 2) to selectively supply pressure oil in a desired direction, and as a result, steering can be performed in any direction to the left or right. The traveling motor 13 is configured to be supplied with pressure oil from the pump 7 side by a flexible hydraulic hose (not shown) from the chassis 1 side.

Then, as shown in FIG. 4 (b), the rear wheel R of the rolling machine in which the front wheel F can be driven can be moved to the position shown in FIG.
It is desirable that a drive device having a configuration as shown in FIG. 1 be provided in order to obtain the above-described effects (as described in the description of the embodiment of FIG. 1), but FIG.
, A non-hydraulic chain drive type driving device D may be provided.

When the front wheel F is provided with a driving device as in this embodiment, when the asphalt or the like is rolled, the portion to be rolled by the front wheel is also smooth as shown in FIG. 5 (a). In addition, it is possible to perform flat rolling.

As a result, the operator does not need to operate the compacting machine in the reverse state as in the prior art, so that the workability can be greatly improved, the operation time can be reduced, and the operator can operate the vehicle in an unreasonable posture. You will be released from.

[0037]

According to the first aspect of the present invention, since the configuration is as described above, the following effects can be obtained.

[0038] That is, according to the compacting machine drive apparatus having a tire rolling圧輪according to claim 1, with good balance supporting the tire rolling圧輪right and left, the travel motor from the tire rolling圧輪Since the bending moment transmitted to the support member via the support member can be minimized, the strength member of the tire rolling wheel can be simplified to improve the workability at the time of manufacturing, and even if the hydraulic system or the like breaks down, Both sides of
It is possible to easily release the parking brake from the
You.

In particular, according to the second aspect, since the traveling motor and the brake are integrally formed, the traveling motor and the brake can be formed compact.

[0040]

In particular, according to the third aspect, maintenance, inspection, and replacement of the inner tire rolling wheel can be performed easily and in a short time.

In particular, according to the fourth aspect, the traveling motor can be easily provided even between narrow tire rolling wheels by minimizing the axial dimension of the traveling motor, and as a result, maintenance and inspection of the traveling motor can be achieved. Can be easily performed.

Further, according to the second aspect of the present invention, the tire roller can be moved forward to perform the work even when the rolling is performed so as to obtain a smooth and flat finished surface. Not only can you save time,
Tomo When the operator also is released from the work of the unreasonable attitude
Even if the hydraulic system breaks down, parking
Can be easily released.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a tire rolling wheel and a driving device according to an example of the first invention of the present application.

FIG. 2 is a circuit diagram showing a configuration of a main part of a hydraulic circuit for supplying pressure oil to a drive device shown in FIG.

FIG. 3 is a plan sectional view showing a configuration of a front wheel portion of a rolling machine in which a drive device similar to FIG. 1 is provided on a front wheel according to an embodiment of the second invention of the present application.

FIG. 4 is a schematic side view showing an arrangement configuration of a driving device of the compacting machine.

FIG. 5 is a schematic diagram showing a relationship between a tire rolling wheel and an asphalt surface showing a rolling state of asphalt.

FIG. 6 is a longitudinal sectional view showing a relationship between a conventional tire rolling wheel and a driving device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Chassis 2 ... Bracket (support member) 3 ... Traveling motor 3a ... Outer output shaft 3b ... Inner output shaft 4 ... Parking brake 5 ... Wheel 5a ... Opening 5b ... Bolt 6 ... Service brake 7 ... Pump T ... Tire rolling圧輪C ... centerline L ₁ ... tire rolling圧輪width L ₂ ... distance F ... front wheel R ... rear wheel 12 ... support member 13 ... travel motors 13a ... outer output shaft 13b ... inner output shaft 18 ... kingpin

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Takeshi Hirayama 2680, Oka, Inami-cho, Kako-gun, Hyogo Kawasaki Heavy Industries, Ltd. Banshu Plant (56) References JP-A-8-246411 (JP, A) 5-46501 (JP, U) JP-A 6-49505 (JP, U) JP-A 60-404 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E01C 19/26 -19/27

Claims (6)

(57) [Claims] 1. A driving device for a rolling machine having tire rolling wheels on the left and right sides with respect to a center line in a vehicle width direction, wherein a supporting member for separately supporting the left and right tire rolling wheels is provided on the rolling machine. Left and right running motors having output shafts on the left and right sides are respectively attached to the support members, and tire rolling wheels are respectively attached to the left and right output shafts of the running motor , and tires outside the running motors are mounted. On the output shaft where the rolling wheels are mounted
Provide a parking brake and remove the release opening of the parking brake.
A driving device for a rolling machine equipped with a tire rolling wheel, which is provided on the wheel of the tire rolling wheel on the side . 2. A service brake is provided on one output shaft of the traveling motor, and a parking brake is provided on the other output shaft, and the parking brake and the service brake are formed integrally with the traveling motor. A driving device for a rolling machine comprising the tire rolling wheel according to claim 1. 3. The inner tire rolling wheels facing left and right with respect to the center line in the vehicle width direction between the inner side surface of one tire rolling wheel and the end surface of the mounting portion of the other tire rolling wheel. interval (L _2), compacting machine drive apparatus having a tire rolling圧輪according to claim 1 or 2, characterized in that wider than the width of the tire rolling圧輪(L _1). 4. The travel motor is constituted by a hydraulic motor having a piston that operates in a radial direction.
A driving device for a rolling machine comprising the tire rolling wheel according to any one of claims 1 to 3 . 5. A tire roller wherein a front wheel having tire rolling wheels disposed on the left and right sides with respect to a center line in a vehicle width direction rotates integrally around a kingpin to have a steering function. Tire rolling wheels located on the left and right are provided with support members for separately supporting the left and right, and at least one of the support members is provided with
A traveling motor having an output shaft on the left and right is mounted, and tire rolling wheels are mounted on each of the left and right output shafts of the traveling motor, and a tire rolling wheel outside the traveling motor is mounted.
A parking brake is provided on the force axis, and the release opening of the parking brake is provided.
A tire roller, wherein a part is provided on a wheel of an outer tire rolling wheel, and a front wheel is a driving wheel. 6. A support member for supporting left and right tire rolling wheels on the left and right sides of the chassis separately, and a traveling motor having an output shaft on the left and right is attached to the support member. 6. The tire roller according to claim 5 , wherein a driving device having a tire pressure wheel attached to each output shaft and a brake device provided on at least one of the output shafts is used as a rear wheel driving device. .