JP5936665B2 - Rolling roller and method for removing tire from rolling roller - Google Patents

Description

  The present invention relates to a self-propelled rolling roller provided with a vibrating tire roller and a method for removing a tire from the rolling roller.

  As one of the rolling rollers, there is a self-propelled boarding type rolling roller in which at least one of a front wheel and a rear wheel is constituted by a vibrating tire roller. Examples of conventional rolling rollers are described in Patent Documents 1 and 2. . Here, the “vibrating tire roller” refers to an assembly around the tire including a tire and a vibration mechanism that vibrates the tire. The vibration tire roller described in Patent Document 1 does not have a structure that can make a difference between the tire on the left side of the vehicle body and the tire on the right side of the vehicle body with respect to traveling, and thus there is a risk of roughening the surface to be pressed in the rolling operation on a curve. Moreover, since the dimension from the outer side surface of the tire located on the outermost side to the tire support member located on the side of the vehicle body, the so-called side overhang, is large, there is a problem in that the surrounding rolling cannot be performed in the structure.

  On the other hand, Patent Document 2 describes a technique in which a tire support member is disposed between adjacent tires of a vibrating tire roller, and a tire driving motor is attached to the tire support member. According to the technique of Patent Document 2, the left and right tires can be differentiated, and the tire support member is disposed between the tires, thereby eliminating the need to provide the tire support member outside the outermost tire. The side overhang can be reduced. Accordingly, there is an advantage that the outermost tire can be brought close to the structure and rolled.

JP-A-9-31912 JP 2003-184022 A

  However, the technique of Patent Document 2 has a structure in which a vibration motor for driving the vibration shaft of the vibration tire roller is located outward from the disk wheel of the outermost tire. In this structure, a bracket for supporting the vibration motor must be provided so as to hang from the side of the vehicle body so as to receive a rotational reaction force when the vibration motor is driven. Since the bracket does not have a function of supporting the tire, the bracket does not need a large shape like the tire support member. However, since the member is always present outside the outermost tire, for example, when exchanging the tire for maintenance or the like, it is necessary to remove the bracket from the vehicle body.

  The present invention was created in order to solve such problems, and the outermost tire can be easily attached without arranging a bracket for supporting motors outside the outermost tire of the vibrating tire roller. It is an object of the present invention to provide a method for removing a tire from a detachable rolling roller and a rolling roller from which an intermediate tire can be easily removed.

In order to solve the above-described problems, the present invention provides a compaction roller having a vibrating tire roller in which at least one of a front wheel or a rear wheel includes at least three tires arranged coaxially in the vehicle width direction. The tire roller has a built-in vibration shaft and a vibrator case provided to be rotatable integrally with the intermediate tire. The tire roller shaft is pivotally supported so as to be rotatable from both sides. A pair of brackets mounted between the intermediate tire and the left and right outer tires, and one of the brackets attached to be positioned between the one bracket and the intermediate tire. A vibration motor for rotating the shaft, and a mounting portion mounted on each bracket in such a direction that the fixed portion is positioned closer to the intermediate tire and the output portion is positioned closer to the outer tire. Wherein the output section comprises a pair of traction motor that is connected to the outer tire, the.

According to the present invention, since one outer tire and the other outer tire of the vibration tire roller are independently driven by the respective driving motors, differential rotation is possible, and the vehicle body can be turned at the time of turning construction. Road scratches can be reduced.
Also, because the structure for mounting the motor for driving the vibration tire roller and the bracket for mounting the motor for vibration is located between the intermediate tire and the outer tire, a bracket for supporting each motor is arranged outside the outer tire. There is no need to do. Therefore, the side overhang is eliminated, and the outer tire can be rolled to the edge of the structure.
In addition, since the traveling motor is attached to the bracket so that the fixed portion is located closer to the intermediate tire and the output portion is located closer to the outer tire, and the output portion is connected to the outer tire, a simple bolt The outer tire can be attached and removed by attaching / detaching.

Further, the present invention is configured to include a bearing, an inner cylinder member fitted into the inner ring of the bearing, and an outer cylinder member fitted to the outer ring of the bearing, and each of the pair of brackets includes a first one. A pair of bearing units that are detachably attached by bolts, wherein both ends of the exciter case are detachably attached to inner cylindrical members of the pair of bearing units by second bolts, and the intermediate tire is The machine case is detachably attached with a third bolt.

  According to the present invention, it is possible to easily remove and attach the intermediate tire by attaching and detaching the first bolt to the third bolt, and to obtain a rolling vehicle having a vibration tire roller excellent in maintainability of the intermediate tire.

  In addition, the present invention includes a pair of front and rear connecting members that connect the front ends and the rear ends of the pair of brackets.

  According to the present invention, the relative backlash and vibration between the exciter case and the member (bearing unit) that rotatably supports both sides of the exciter case can be prevented by the connecting member spanned between the pair of brackets. It is possible to prevent them and increase their overall rigidity, thereby suppressing vibration variation between the intermediate tire and the left and right outer tires.

  The present invention further includes a pair of front and rear connection support members that connect the front ends and rear ends of the pair of brackets via the vibration isolation member, and a steering yoke is stretched over the pair of connection support members. It is characterized by being.

  According to the present invention, a rolling roller having a steering yoke type self-propelled vibrating tire roller can be easily realized.

  Further, the present invention is characterized in that the pair of coupling support members and the steering yoke are connected via a bearing so that the tire can swing in accordance with the unevenness of the surface to be pressed. .

  According to the present invention, since the vibrating tire roller swings in accordance with the unevenness on the surface to be pressed, uniform static pressure and dynamic pressure can be applied to the surface to be pressed from each tire, and the vibration tire roller is compacted. A powerful effect can be uniformly exerted on the surface to be pressed.

In the present invention, at least one of the front wheel or the rear wheel has a vibrating tire roller composed of at least three tires arranged coaxially in the vehicle width direction, and the vibrating tire roller has an excitation shaft. A built-in exciter case that can rotate integrally with the intermediate tire, a pair of brackets that are attached to the vehicle body frame via vibration isolation members and positioned between the intermediate tire and the left and right outer tires, and a bearing And an inner cylinder member fitted into the inner ring of the bearing, and an outer cylinder member fitted to the outer ring of the bearing, each being detachably attached to the pair of brackets by a first bolt. A pair of bearing units that rotatably support the exciter case from both sides, a vibration motor that is attached to one of the brackets and rotates the excitation shaft, and the brackets. A pair of travel motors, each of which is attached in a direction in which the fixed portion is positioned closer to the intermediate tire and the output portion is positioned closer to the outer tire, and the output portion is connected to the outer tire. In the rolling roller, both ends of the case are detachably attached to inner cylinder members of the pair of bearing units by a second bolt, and the intermediate tire is detachably attached to the exciter case by a third bolt. A method of removing the intermediate tire, wherein (1) one bracket of the pair of brackets is separated from the vehicle body frame and the first bolt is removed to remove the one bracket from the pair of bearing units. (2) removing the second bolt to remove the one bearing unit from the bearing unit. A step of removing from the one end of the exciter case while the receiver, the inner cylinder member, and the outer cylinder member are assembled, and (3) a state in which the third bolt is removed and the bracket is attached to the other bracket. The step of removing the intermediate tire from one end side of the exciter case is performed in that order.

  According to the present invention, the removal of the intermediate tire can be easily performed without requiring the disassembly of the vibration mechanism such as the vibrator case or the disassembly of the bearing unit. Therefore, the removal method is excellent in maintainability of the intermediate tire.

  According to the present invention, it is possible to easily attach and detach the outermost tire without disposing the bracket for supporting the motors outside the outermost tire of the vibration tire roller.

It is a side view of an articulated rolling roller provided with a vibrating tire roller. It is a plane sectional view around the tire in a 1st embodiment of the present invention. It is a side view around the tire in a 1st embodiment of the present invention. It is a plane sectional view around the tire in a 2nd embodiment of the present invention. It is a side view (a driver's seat etc. are omitted) of a steering yoke type rolling pressure roller provided with a vibration tire roller. It is a plane sectional view around the tire in a 3rd embodiment of the present invention. It is a side view around a tire in a 3rd embodiment of the present invention. It is a general | schematic hydraulic circuit figure regarding the motor for driving | running | working.

  Hereinafter, three embodiments of the present invention will be described. In the present specification, the term “vibrating tire roller” refers to an assembly around a tire including a tire and a vibration mechanism that vibrates the tire, and the entire vehicle is referred to as a “rolling roller”. To do.

“First Embodiment”
In FIG. 1, a rolling roller R has a front vehicle body 1 and a rear vehicle body 2 connected in an articulated manner by a connecting portion 3, and a cylinder (not shown) expands and contracts by operation of a steering handle in a driver's seat. Thus, the front vehicle body 1 turns around the center pin 4 with respect to the rear vehicle body 2. The front vehicle body 1 includes a plurality (three in this embodiment) of tires T arranged coaxially in the vehicle width direction as vibration tire rollers on the front wheel side, and the rear vehicle body 2 is a vehicle as vibration tire rollers on the rear wheel side. A plurality of tires T (four in this embodiment) are provided coaxially in the width direction. The tires T for the front wheels and the rear wheels are arranged at equal intervals in the vehicle width direction or in a state close thereto. This embodiment and the second and third embodiments to be described later are forms in which the present invention is applied to a vibrating tire roller on the front wheel side. However, depending on the specifications of the rolling roller, the present invention is also applied to the vibrating tire roller on the rear wheel side. Is possible. Hereinafter, of the three tires T of the front wheels, a tire located on one outer side is referred to as a first outer tire T1, a tire located in the middle is referred to as an intermediate tire T2, and a tire located on the other outer side is referred to as a second outer tire T3. And

  Further, in the following description, with respect to the insertion direction of each bolt, the case of inserting from the outer side in the vehicle width direction toward the tire width center side of the intermediate tire T2 is expressed as “inward”, and the opposite direction is “outward”. It expresses. Further, regarding the side surfaces of each member, the side surface facing the tire width center side of the intermediate tire T2 is expressed as “inner side surface”, and the opposite side surface is expressed as “outer side surface”.

  As shown in FIG. 2, the vibration tire roller of the rolling roller R includes a vibration generator case 6 that includes a vibration shaft 5 and is provided so as to be integrally rotatable with the intermediate tire T <b> 2. A pair of brackets 9 that are rotatably supported and attached to the vehicle body frames 7A and 7B via vibration-proof members 8 and positioned between the intermediate tire T2, the first outer tire T1, and the second outer tire T3, 10, a vibration motor 11 that is attached to one of the brackets 9, 10 and rotates the excitation shaft 5, and each bracket 9, 10 has a fixed portion 12 positioned near the intermediate tire T 2, and an output portion 13 is attached in a direction closer to the outer tire (first outer tire T1 or second outer tire T3), and the output unit 13 is an outer tire (first outer tire T1 or second outer tire T3). It is configured to include a pair of traveling motors 14 and 15 are connected.

  Vertical plate-like body frames 7A, 7A, 7B, 7B are suspended and fixed to the front body 1 so as to extend along the vehicle front-rear direction. The body frames 7A and 7A are positioned in front of the first outer tire T1 and the second outer tire T3, respectively, and the body frames 7B and 7B are positioned behind the first outer tire T1 and the second outer tire T3, respectively. Anti-vibration members 8 are respectively mounted vertically between the bracket 9 and the body frames 7A and 7B on the bracket 9 side and between the bracket 10 and the body frames 7A and 7B on the bracket 10 side. The anti-vibration member 8 includes an intermediate portion made of a rubber member having a substantially columnar shape and attachment portions bonded to both sides of the intermediate portion.

  The bracket 9 is a horizontally-long rectangular plate member that is positioned between the first outer tire T1 and the intermediate tire T2 and is perpendicular to the vehicle longitudinal direction as shown in FIG. The vibration isolating member 8 is attached to the front and rear ends of the bracket 9 with bolts. The bracket 10 is positioned between the second outer tire T3 and the intermediate tire T2 by being connected to the vehicle body frames 7A and 7B via the vibration isolation member 8 in a symmetrical arrangement structure with the bracket 9. The mass of the rolling roller R closer to the front vehicle body 1 than the vibration isolating member 8 is “sprung mass”, and the mass of the rolling roller R closer to the tire than the vibration isolating member 8 is “unsprung mass”. .

  A cylindrical travel motor mounting portion 19 is fixed to the outer surface of the center portion of the bracket 9 in the vehicle longitudinal direction by welding or the like so as to be coaxial with the tire shaft. An annular flange portion 20 protrudes radially inward from the tip of the traveling motor mounting portion 19. The traveling motor 14 is fastened and fixed by a bolt 21 inserted outward after the mounting flange of the fixing portion 12 is applied to the outer surface of the flange portion 20. The bracket 9 is formed with a through hole 22 for avoiding interference with the fixing portion 12 and for inserting the bolt 21.

  The output unit 13 rotates with respect to the fixed unit 12 at the boundary 23. The output portion 13 is fastened and fixed by a bolt 26 whose mounting flange is applied to the adapter 25 and inserted outward. The disc wheel DW1 of the first outer tire T1 is located on the outer side in the vehicle width direction from the center of the tire width, and an adapter 25 is attached to the inner surface of the disc portion of the disc wheel DW1 by a bolt 24 inserted inward. Fastened and fixed. As described above, the first outer tire T1 becomes a drive wheel driven by the traveling motor 14. The mounting structure of the traveling motor 15 with respect to the bracket 10 is bilaterally symmetric with the mounting structure of the traveling motor 14 with respect to the bracket 9 described above, whereby the second outer tire T3 is a drive wheel driven by the traveling motor 15. Become. The traveling motors 14 and 15 are hydraulic motors or the like, and are radial piston motors in this embodiment.

  The exciter case 6 is connected and fixed so as to close the cylindrical barrel portion 6A which is arranged coaxially with the tire shaft and has openings at both ends, and the opening portion of the barrel portion 6A near the first outer tire T1. A disc-shaped first lid portion 6B in which a hole into which the bearing 29 is inserted is formed at the center, a flange portion 6C attached to an opening portion of the cylindrical body portion 6A near the second outer tire T3, and a flange portion 6C. And a disc-shaped second lid portion 6D, which is attached so as to close the opening of the cylindrical body portion 6A near the second outer tire T3 and has a hole into which the bearing 30 is fitted at the center. Configured. The cylinder body portion 6A, the first lid portion 6B, and the flange portion 6C are integrally fixed to each other by welding. The second lid portion 6D is fastened and fixed to the flange portion 6C by a bolt 27 inserted inward.

  The disc wheel DW2 of the intermediate tire T2 is located closer to the first outer tire T1 than the center of the tire width. The first lid portion 6B is fastened and fixed to the inner side surface of the disc portion of the disc wheel DW2 by a bolt 28 inserted inward. Thereby, the vibrator case 6 is disposed so as to be accommodated in the internal space of the intermediate tire T2, and rotates integrally with the intermediate tire T2.

  The exciter shaft 5 is disposed coaxially with the tire shaft inside the exciter case 6, one end is supported on the first lid 6 </ b> B via a bearing 29, and the other end is provided via a bearing 30. 2 is supported by the lid portion 6D. The excitation shaft 5 is configured to rotate forward or reverse by bi-directional rotation of the vibration motor 11 assuming that one direction of rotation is normal.

  An eccentric weight 31 is attached to the excitation shaft 5. The eccentric weight 31 is an eccentric weight capable of variable amplitude, for example. A pair of fixed eccentric weights 31 </ b> A are fixed to the excitation shaft 5, and a movable eccentric weight 31 </ b> B is rotatably mounted on the excitation shaft 5 between the pair of fixed eccentric weights 31 </ b> A. A stopper 31C is provided between the fixed eccentric weights 31A and 31A so as to contact the movable eccentric weight 31B and restrict the rotation of the movable eccentric weight 31B. When the excitation shaft 5 rotates in the forward direction, the stopper 31C rotates while pressing one end side of the movable eccentric weight 31B. In this state, the directions of displacement of the fixed eccentric weight 31A and the movable eccentric weight 31B coincide. Therefore, the vibration force acts to be synthesized, resulting in a large vibration force. In addition, since the eccentric moment is increased, the vibration has a high amplitude. When the excitation shaft 5 rotates in the reverse direction, the stopper 31C rotates while pressing the other end of the movable eccentric weight 31B. In this state, the directions of the displacement of the fixed eccentric weight 31A and the movable eccentric weight 31B are reversed. , Since the vibration force acts so as to cancel each other, it becomes a small vibration force, resulting in low amplitude vibration

  The exciter case 6 is configured to be pivotally supported by the brackets 9 and 10 on both sides as described above. In this embodiment, the exciter case 6 is attached to the brackets 9 and 9 via the bearing units 32 and 33. 10 is pivotally supported. The bearing unit 32 includes a pair of bearings 34, 34, an inner cylinder member 35 fitted in each inner ring of the pair of bearings 34, 34, and an outer cylinder member fitted outside each outer ring of the pair of bearings 34, 34. 36, an inner plate member 37 that closes the side portion of the bearing 34 near the intermediate tire T2, and an outer plate member 38 that closes the side portion of the bearing 34 near the first outer tire T1.

  The inner cylinder member 35 is formed as a flange portion having an end facing the intermediate tire T2 projecting in the radially inward direction, and this flange portion is applied to the outer surface of the first lid portion 6B. It is fastened and fixed by bolts 39 inserted in the direction. An end cover 40 for covering one end of the vibration shaft 5 and the bearing 29 is fastened and fixed to the flange portion of the inner cylinder member 35 by bolts 41 inserted inward.

  The outer plate member 38 is applied to an end portion of the inner cylinder member 35 facing the first outer tire T1, and is fastened and fixed by a bolt 42 inserted inward. The outer peripheral surface of the outer plate member 38 is in sliding contact with the inner peripheral surface of the outer cylinder member 36 with an O-ring interposed. The inner plate member 37 is applied to an end portion of the outer cylinder member 36 that faces the intermediate tire T2, and is fastened and fixed by a bolt 43 that is inserted outward. The inner peripheral surface of the inner plate member 37 is in sliding contact with the outer peripheral surface of the inner cylinder member 35 with an O-ring interposed. The disc-shaped plate 44 is applied to an end portion of the outer cylinder member 36 that faces the first outer tire T1, and is fastened and fixed by a bolt 45 that is inserted inwardly. The bolt head of the bolt 45 fits in a counterbore formed in the plate 44. The plate 44 is fastened and fixed by a bolt 46 which is applied to the inner surface of the bracket 9 and inserted inward.

  The bearing unit 33 is substantially symmetrical to the bearing unit 32, and includes a pair of bearings 34, 34, an inner cylinder member 35 ′ fitted in each inner ring of the pair of bearings 34, 34, and a pair of bearings 34. , 34, an outer cylinder member 36 fitted on the outer ring, an inner plate member 37 that closes the side portion of the bearing 34 near the intermediate tire T2, and an outer plate that closes the side portion of the bearing 34 near the second outer tire T3. And a member 38 '. An end portion of the inner cylinder member 35 ′ facing the intermediate tire T <b> 2 is applied to the outer surface of the second lid portion 6 </ b> D and is fastened and fixed by a bolt 47 inserted outward.

  A disk-like plate 48 is applied to the end of the outer cylinder member 36 that faces the second outer tire T3, and is fastened and fixed by bolts 45 that are inserted inward. The plate 48 is fastened and fixed by a bolt 46 that is applied to the inner surface of the bracket 10 and inserted inward. Unlike the plate 44, a cylindrical vibration motor mounting portion 49 is fixed to the inner surface of the plate 48 by welding or the like so as to be coaxial with the tire shaft. The vibration motor mounting portion 49 is accommodated in the inner cylinder member 35 ′ of the bearing unit 33. Whereas the outer plate member 38 on the bearing unit 32 side is a disk-shaped member without holes, the outer plate member 38 ′ on the bearing unit 33 side has a hole through which the vibration motor mounting portion 49 is inserted. It is a ring-shaped member.

  The second lid portion 6 </ b> D of the exciter case 6 is configured to be in sliding contact with the outer peripheral surface of the tip of the vibration motor mounting portion 49 with an O-ring interposed. At the tip of the vibration motor mounting portion 49, an annular flange portion 50 is projected in the radially inward direction. The vibration motor 11 is fastened and fixed by a bolt 51 inserted inward after its mounting flange is applied to the outer surface of the flange portion 50. The output shaft 11A of the vibration motor 11 is connected to the other end of the vibration generating shaft 5 so as to be integrally rotatable by spline coupling. The vibration motor 11 is, for example, a hydraulic motor. The plate 48 is formed with a through hole 52 for avoiding interference with the vibration motor 11 and for inserting the bolt 51.

  As described above, the vibrator case 6 is rotatably supported by the brackets 9 and 10 via the bearing units 32 and 33, and the intermediate tire T2 rotates integrally with the vibrator case 6 as a driven wheel.

  FIG. 8 shows a schematic hydraulic circuit relating to the traveling motors 14 and 15 for allowing the first outer tire T1 and the second outer tire T3 to rotate independently of each other, that is, to make them differential. The rear wheel side is configured to be differentially configured so that the right two tires T and the left two tires T are independently rotated by the traveling motors 53 and 54, respectively. The pair of traveling motors 53 and 54 on the rear wheel side and the pair of traveling motors 14 and 15 on the front wheel side are connected in parallel to a hydraulic pump P coupled to an engine E mounted on the vehicle body. . The hydraulic pump P is a pump having a function of switching the flow direction of the pressure oil in the closed circuit, and the rotation direction of each of the traveling motors 14, 15, 53, 54 by switching the flow of the pressure oil to the U1 direction or the U2 direction. And the rolling roller R is moved forward or backward.

  In the flow path 111 connected to one port Pa of the hydraulic pump P, the port P1 of the traveling motor 53, the port P3 of the traveling motor 54 via the branching portion 112, and the traveling portion via the branching portion 113 are provided. The port P5 of the motor 14 and the port P7 of the traveling motor 15 are connected. In the flow path 114 connected to the other port Pb of the hydraulic pump P, the port P2 of the traveling motor 53, the port P4 of the traveling motor 54 via the branching portion 115, and the traveling portion via the branching portion 116 are provided. The port P6 of the motor 14 and the port P8 of the traveling motor 15 are connected.

  As described above, the pair of left and right traveling motors 14 and 15 on the front wheel side and the pair of left and right traveling motors 53 and 54 on the rear wheel side are connected in parallel to the hydraulic pump P. Even if a rotation difference occurs between the first outer tire T1 and the second outer tire T3 of the front wheels or between the two tires T on the right side and the two tires T on the left side with the steering of R, The amount of pressure oil commensurate with the difference in rotation is supplied to each traveling motor 14, 15, 53, 54, and each tire rotates in a differential manner.

"Action"
When the left and right traveling motors 14 and 15 are driven, the first outer tire T1 and the second outer tire T3 connected to each output unit 13 travel and rotate as driving wheels. The intermediate tire T2 travels and rotates as a driven wheel when the exciter case 6 is rotatably supported by the brackets 9 and 10 via the bearing units 32 and 33. The brackets 9 and 10 have a function of transmitting a load from the sprung mass side to the tire side.

  When the vibration motor 11 is driven, the vibration generating shaft 5 connected to the output shaft 11 </ b> A rotates in the forward direction or the reverse direction, and a vibration force is generated on the vibration generating shaft 5 by the eccentric action of the eccentric weight 31. The vibration force is transmitted to the intermediate tire T2 through the bearings 29 and 30 and the exciter case 6, and further transmitted to the first outer tire T1 through the bearing unit 32, the bracket 9 and the traveling motor 14, and the bearing unit 33, It is transmitted to the second outer tire T3 through the bracket 10 and the traveling motor 15. As a result, all tires vibrate on the unsprung mass side of the vibration isolation member 8.

"Tire assembly and removal procedures"
An example of a procedure for assembling / removing each tire will be described. It is assumed that the brackets 9 and 10 are already attached to the vehicle body frames 7A and 7B via the vibration isolation member 8.

<< Assembly around the intermediate tire T2 >>
(1) On the bearing unit 33 side, the inner cylinder member 35 and the outer cylinder member 36 are fitted to the bearings 34, 34 so that preload is applied to the bearings 34, 34, and the inner cylinder member 35 and the outer plate member 38 is fastened and fixed with bolts 42, and the outer cylinder member 36 and the inner plate member 37 are fastened and fixed with bolts 43 to assemble the bearing unit 33. On the bearing unit 32 side, the inner cylinder member 35 and the outer cylinder member 36 are fitted to the bearings 34, 34, and the outer cylinder member 36 and the inner plate member 37 are only fastened and fixed by the bolts 43. The outer plate member 38 is not yet fastened to the member 35.

(2) The assembled bearing unit 33 and the second lid portion 6D of the vibrator case 6 are fastened and fixed with bolts 47. The bolt 27 is previously passed through the second lid portion 6D.
(3) One end of the vibration shaft 5 is fitted to the bearing 29 attached to the first lid portion 6B of the vibration generator case 6. Next, the flange portion 6 </ b> C and the second lid portion 6 </ b> D of the vibrator case 6 are fastened and fixed with bolts 27. Next, the bearing 30 is attached to the second lid portion 6 </ b> D while being fitted to the other end of the excitation shaft 5.

(4) The plate 48 in a state where the vibration motor 11 is fastened and fixed to the flange portion 50 of the vibration motor mounting portion 49 with the bolt 51 is fastened and fixed to the outer cylinder member 36 of the bearing unit 33 with the bolt 45. At this time, the output shaft 11 </ b> A of the vibration motor 11 is splined to the other end of the excitation shaft 5.
(5) The intermediate tire T <b> 2 is fastened and fixed to the first lid portion 6 </ b> B of the vibrator case 6 with the bolts 28.

(6) The first lid portion 6B of the vibrator case 6 and the inner cylinder member 35 of the bearing unit 32 assembled in (1) are fastened and fixed with bolts 39.
(7) The end cover 40 is fastened and fixed to the first lid portion 6B with bolts 41.
(8) The outer plate member 38 is fastened and fixed to the inner cylinder member 35 of the bearing unit 32 with bolts 42.
(9) The plate 44 is fastened and fixed to the outer cylinder member 36 of the bearing unit 32 with bolts 45.

  As described above, a pair of bearings that obstruct both sides of the intermediate tire T2, the vibrator case 6, the vibrator shaft 5, the vibration motor 11, and the vibrator case 6 before being attached to the brackets 9 and 10. The assembly of the intermediate tire assembly TA in which all the (bearings 34 of the bearing units 32 and 33) are assembled is completed. Then, after the traveling motors 14 and 15 are fastened and fixed to the flange portions 20 of the respective traveling motor mounting portions 19 of the brackets 9 and 10 with bolts 21, the plates 44 and 48 of the intermediate tire assembly TA are respectively bracketed with the bolts 46. By fastening to 9, 10, the attachment of the intermediate tire T2 to the brackets 9, 10 is completed.

<< Removal of intermediate tire T2 >>
Next, an example of a procedure for removing the intermediate tire T2 for the purpose of maintenance or replacement will be described.
(1) Remove the bolt 24 and remove the first outer tire T1 from the adapter 25.
(2) After the vibration isolator 8 is separated from the right body frames 7A and 7B, that is, after the bracket 9 is separated from the body frames 7A and 7B, the bracket 9 is removed by removing the bolts 46. Note that the traveling motor 14 is still attached to the removed bracket 9.

(3) Remove the bolt 45 and remove the plate 44 from the outer cylinder member 36 of the bearing unit 32. Next, the bolt 42 is removed, and the outer plate member 38 is removed from the inner cylinder member 35 of the bearing unit 32. Next, the bolt 41 is removed and the end cover 40 is removed from the inner cylinder member 35 of the bearing unit 32.
(4) Remove the bolt 39 and remove the bearing unit 32 from the first lid portion 6B of the shaker case 6. The removed bearing unit 32 remains assembled without the bearing 34, the inner cylinder member 35, and the outer cylinder member 36 being disassembled.
(5) Remove the bolt 28 and move the intermediate tire T2 to the right to remove it from the vibrator case 6. The exciter case 6 remains attached to the bracket 10 via the bearing unit 33, and when removing the intermediate tire T2, it is not necessary to disassemble the vibration mechanism or the like or to remove the bearing unit 33 at all. The attachment of the intermediate tire T2 may be performed in the reverse procedure.

As can be seen from the specific procedure for removing the intermediate tire T2, the method for removing the intermediate tire T2 according to the present invention includes:
(1) One bracket 9 out of the pair of brackets 9 and 10 is separated from the vehicle body frames 7A and 7B, and the first bolt (corresponding to the bolt 46) is removed, whereby the bracket 9 is removed from the pair of bearing units 32 and 33 Removing from one of the bearing units 32,
(2) By removing the second bolt (corresponding to the bolt 39), the bearing unit 32 remains in the state in which the bearing 34, the inner cylinder member 35, and the outer cylinder member 36 are assembled. Removing from one end,
(3) A step of removing the intermediate tire T2 from one end side of the shaker case 6 attached to the other bracket 10 by removing the third bolt (corresponding to the bolt 28).
In that order.
According to this removal method, the removal of the intermediate tire T2 or the attachment of the intermediate tire T2, which is the reverse process thereof, can be easily performed without the need to disassemble the vibration mechanism such as the shaker case 6 or the bearing units 32 and 33. Since it can be performed, the removal method is excellent in maintainability of the intermediate tire T2.

<< Assembly / Removal of First Outer Tire T1 and Second Outer Tire T3 >>
Driving motors 14 and 15 are fastened and fixed to the brackets 9 and 10 with bolts 21, and adapters 25 are fastened and fixed to the output portions 13 with bolts 26. Then, the first outer tire T1 and the second outer tire T3 are assembled to the brackets 9 and 10 only by fastening the bolts 24 to the respective adapters 25 for the first outer tire T1 and the second outer tire T3. . When removing the first outer tire T1 and the second outer tire T3, it is only necessary to remove the bolts 26.

As described above, according to the present invention, one first outer tire T1 and the other second outer tire T3 are independently driven by the traveling motors 14 and 15, respectively, so that differential rotation is possible. In addition, it is possible to reduce drag on the road surface when the vehicle is turning.
A bracket 9 for attaching the traveling motor 14 is located between the intermediate tire T2 and the first outer tire T1, and a bracket 10 for attaching the traveling motor 15 and the vibration motor 11 is the intermediate tire T2 and the second outer tire T3. Therefore, there is no need to dispose any brackets for supporting the motors on the outer sides of the first outer tire T1 and the second outer tire T3. Accordingly, the side overhang is eliminated, and the first outer tire T1 and the second outer tire T3 can be rolled to the edge of the structure.

  Also, when rolling on curbs or walls, drivers tend to work at the last minute so that they can roll to every corner of the road surface. Work while pressing against the wall. Therefore, the side surface of the tire located on the outermost side is easily damaged, and the replacement frequency of the tire tends to be particularly high. In the present invention, there are no brackets, motors and the like that prevent the first outer tire T1 and the second outer tire T3 from being attached and removed, and the traveling motors 14, 15 are fixed to the brackets 9, 10, respectively. Is positioned closer to the intermediate tire T2 and the output portion 13 is mounted in a direction closer to the first outer tire T1, the second outer tire T3, and each output portion 13 is connected to the first outer tire T1 and the second outer tire T3. Therefore, as described above, the first outer tire T1 and the second outer tire T3 can be easily attached / detached only by attaching / detaching the bolt 24. Therefore, the rolling roller R is excellent in maintainability of the outermost tire that is frequently replaced.

“Second Embodiment”
A second embodiment will be described with reference to FIG. In the second embodiment, a pair of front and rear connecting members 61 and 62 that connect the front ends and rear ends of the brackets 9 and 10 are provided. Since the other configuration is the same as that of the first embodiment, the same reference numerals are given or the reference numerals are omitted, and the description thereof is omitted.

  The connecting member 61 that connects the front ends of the brackets 9 and 10 is a vertical plate member that extends in the vehicle width direction in front of the intermediate tire T2, and the connecting member 62 that connects the rear ends of the brackets 9 and 10 is an intermediate member. It consists of a vertical plate member extending in the vehicle width direction behind the tire T2. Vertical plate-like mounting seats 63 extending in the vehicle longitudinal direction are fixed to the left and right ends of the connecting members 61 and 62 by welding or the like, and the mounting seats 63 are applied to the inner side surfaces of the brackets 9 and 10. Then, it is fastened and fixed by a bolt 64 inserted outward.

  The intermediate tire assembly TA applies vibration to the intermediate tire T2 and also transmits vibration to the first outer tire T1 and the second outer tire T3. If the vibrator case 6 at the center of the intermediate tire assembly TA and the bearing units 32 and 33 on both sides do not vibrate together, the intermediate tire T2, the first outer tire T1, and the second outer tire T3 The vibration behavior will be different between them, and the compaction quality will vary in the vehicle width direction of the rolling roller R. In the present embodiment, the connecting members 61 and 62 are spanned between the brackets 9 and 10 to prevent relative vibration between the exciter case 6 and the bearing units 32 and 33, thereby improving the overall rigidity. The variation in vibrations between the intermediate tire T2, the first outer tire T1, and the second outer tire T3 can be suppressed.

“Third Embodiment”
A third embodiment will be described with reference to FIGS. In the first and second embodiments, the rolling roller R is a vehicle in which the front vehicle body 1 and the rear vehicle body 2 are connected in an articulated manner. As shown in FIG. 5, it is a form of a vehicle of a type called a steering yoke type having a body 71 of an integral rigid frame and a steering yoke 72 on the front wheel. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected or a code | symbol is abbreviate | omitted and the description is abbreviate | omitted.
In the present embodiment, the “body frame” refers to the vehicle body 71.

  As shown in FIG. 7, the steering yoke 72 includes a vehicle body mounting plate portion 72A that extends in the vehicle front-rear direction when viewed from the side, and a vertical shape after extending downward from the front and rear of the vehicle body mounting plate portion 72A. And a pair of front and rear tire mounting plate portions 72 </ b> B extending in the shape. The steering yoke 72 is attached to the vehicle body 71 via a slewing bearing 73, an outer case 73A of the slewing bearing 73 is fastened and fixed to the lower portion of the vehicle body 71 by a bolt 74, and the inner case 73B is a vehicle body mounting plate portion of the steering yoke 72. The bolts 75 are fastened and fixed to 72A. When the cylinder (not shown) expands and contracts by operating the steering handle of the driver's seat, the steering yoke 72 turns about the center of the turning bearing 73 as the axis.

  As shown in FIGS. 6 and 7, a slewing bearing 76 having an inner case 77 and an outer case 78 is attached to the rear surface of the front tire mounting plate portion 72B and the front surface of the rear tire mounting plate portion 72B. An inner case 77 is fastened and fixed to the tire mounting plate portion 72B by bolts 79. On the other hand, on the tire side, one surface of the vibration isolation member 8 is attached to each inner side surface of the front and rear ends of the brackets 9 and 10. The other surfaces of the vibration isolator 8 attached to the front ends of the brackets 9 and 10 are connected by a vertical plate-like connection support member 80 extending in the vehicle width direction. The other surfaces of the vibration isolation member 8 attached to the end are connected to each other by a vertical plate-like connection support member 81 extending in the vehicle width direction. A vertical plate-like mounting seat 82 extending in the vehicle front-rear direction is fixed to each end of the connection support members 80 and 81 by welding or the like, and this mounting seat 82 is fastened and fixed to the other surface of the vibration isolating member 8 with bolts. Is done. The connection support members 80 and 81 are positioned in front of and behind the intermediate tire T2, respectively. The outer case 78 of the slewing bearing 76 is fastened and fixed to the coupling support members 80 and 81 by bolts 83, respectively.

  As described above, the pair of front and rear ends of the pair of brackets 9 and 10 are connected to each other via the vibration isolation member 8 and the pair of front and rear connection support members 80 and 81 are provided. If the structure is such that the steering yoke 72 is stretched over, the rolling roller R having a steering yoke type self-propelled vibration tire roller can be easily realized.

  Further, the pair of connection support members 80 and 81 and the steering yoke 72 are connected via a bearing (slewing bearing 76) so that the tires T1 to T3 can swing according to the unevenness of the surface to be pressed. With this structure, the vibrating tire roller swings in accordance with the unevenness on the surface to be pressed, so that uniform static pressure and dynamic pressure can be applied to the surface to be pressed from the tires T1 to T3. The strong effect of hardening can be uniformly exerted on the surface to be pressed.

  The preferred embodiment of the present invention has been described above. The present invention can be applied to, for example, a combined type rolling roller in which either the front wheel or the rear wheel is a vibrating tire roller and the other wheel is an iron wheel. Is also applicable.

DESCRIPTION OF SYMBOLS 1 Front vehicle body 2 Rear vehicle body 5 Excitation shaft 6 Exciter case 7A, 7B Body frame 8 Anti-vibration member 9, 10 Bracket 11 Vibration motor 12 Fixed part 13 Output part 14, 15 Traveling motor 32, 33 Bearing unit 34 Bearing 61, 62 Connecting member R Rolling roller T1 First outer tire T2 Intermediate tire T3 Second outer tire

Claims (6)

In the rolling roller having a vibrating tire roller in which at least one of the front wheel or the rear wheel is composed of at least three tires arranged coaxially in the vehicle width direction,
The vibrating tire roller is
An exciter case with a built-in exciter shaft that can rotate integrally with the intermediate tire;
A pair of brackets that pivotally support the exciter case from both sides and are respectively attached to the vehicle body frame via vibration isolation members and positioned between the intermediate tire and the left and right outer tires;
A vibration motor that is attached to one of the brackets so as to be positioned between the one bracket and the intermediate tire and rotates the excitation shaft;
A pair of traveling motors attached to the brackets in a direction in which the fixed portion is positioned closer to the intermediate tire and the output portion is positioned closer to the outer tire, and the output portion is connected to the outer tire;
A rolling roller characterized by comprising: A bearing, an inner cylinder member fitted in the inner ring of the bearing, and an outer cylinder member fitted in the outer ring of the bearing are configured to be detachably attached to the pair of brackets by respective first bolts. A pair of bearing units,
Both ends of the vibrator case are detachably attached to the inner cylindrical members of the pair of bearing units by second bolts,
The rolling roller according to claim 1, wherein the intermediate tire is detachably attached to the vibrator case with a third bolt.   The rolling roller according to claim 1 or 2, comprising a pair of front and rear connecting members that connect front ends and rear ends of the pair of brackets. A pair of front and rear connection support members for connecting front ends and rear ends of the pair of brackets via the vibration isolating member;
The rolling roller according to claim 1 or 2, wherein a steering yoke is stretched over the pair of connection support members.   The pair of connection support members and the steering yoke are connected via a bearing so that the tire can swing in accordance with the unevenness of the surface to be pressed. Rolling roller. At least one of the front wheel or the rear wheel has a vibrating tire roller composed of at least three tires arranged coaxially in the vehicle width direction,
The vibrating tire roller is
An exciter case with a built-in exciter shaft that can rotate integrally with the intermediate tire;
A pair of brackets that are attached to the vehicle body frame via vibration isolation members and located between the intermediate tire and the left and right outer tires;
A bearing, an inner cylinder member fitted in the inner ring of the bearing, and an outer cylinder member fitted in the outer ring of the bearing are configured to be detachably attached to the pair of brackets by respective first bolts. A pair of bearing units that rotatably support the vibrator case from both sides;
A vibration motor attached to one of the brackets and rotating the excitation shaft;
A pair of traveling motors attached to the brackets in a direction in which the fixed portion is positioned closer to the intermediate tire and the output portion is positioned closer to the outer tire, and the output portion is connected to the outer tire;
With
Both ends of the exciter case are detachably attached to the inner cylindrical members of the pair of bearing units by a second bolt, and the intermediate tire is detachably attached to the exciter case by a third bolt. In the rolling roller, a method of removing the intermediate tire,
(1) A step of detaching the one bracket from one of the pair of bearing units by detaching one of the pair of brackets from the body frame and removing the first bolt.
(2) removing the second bolt from one end of the exciter case while the one bearing unit is assembled with the bearing, the inner cylinder member, and the outer cylinder member;
(3) The step of removing the intermediate tire from one end side of the vibrator case that is attached to the other bracket by removing the third bolt,
A method for removing a tire from a rolling roller, wherein the tires are performed in that order.

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