JP2002219901A - Mobile disassembling and conveying apparatus for large- sized construction equipment vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a body, which is difficult to convey at an assembly process, mobile at the time of conveyance by assembling the body so as to be deliverable as it is without need for a traction carriage. SOLUTION: This apparatus includes traveling wheels 10 detachably fitted to a sprocket 3 for driving a crawler belt provided at the rear outside of the body 1 of crawler belt traveling type construction equipment, and a front traveling carriage 20 in a caster type detachably mounted on the front lower part of the body 1 for supporting the front part of the body. The traveling wheel 10 is engaged with the teeth of the sprocket 3 to be supported, and a tread is formed out of elastic material. The front part traveling carriage 20 is provided with the traveling wheels (casters 30) at both end pats of a mounted wheel supporting frame 25 so as to swing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled disassembly / conveyance apparatus which is mainly used for disassembling and moving a large construction machine for transportation, and more particularly to a self-propelled disassembly / conveyance apparatus such as a large bulldozer. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled disassembly and transport device for a large construction machine vehicle configured to be capable of self-propelling by mounting wheels in place of the crawler track in a form capable of being transported.

[0002]

2. Description of the Related Art Conventionally, a crawler-carrying type vehicle such as a bulldozer has a large construction machine, such as a bulldozer. Can not do it. Therefore, it is difficult to ship the vehicle as a completed vehicle from the manufacturing factory and transport it to the destination. In addition, especially in a large vehicle model, its own weight is very large, so that it is difficult to move the premises even in a manufacturing factory. For this reason, in a manufacturing plant, various parts and devices are assembled, assembled once as a completed vehicle, then disassembled into a transportable state, and shipped. In particular, since the main body, which is heavy in weight, is difficult to move, the main body is handled such that it is mounted on a traveling vehicle, towed by a towing vehicle, and transferred to a shipping location.

[0003]

SUMMARY OF THE INVENTION
In the case of a large model, it is necessary to assemble the vehicle once in a manufacturing plant as a completed vehicle and then disassemble it into a package that can be transported for shipment. In addition, there is a risk that the product may be damaged during the disassembly, and the work must be performed with care, so that there is a problem that the construction cost increases.

Further, in order to move the heavy main body in the work process, a separate traveling carriage is required, and the operation of placing the main body to be transferred on the traveling carriage and towing by a towing vehicle must be performed. If the number of vehicles handled at the manufacturing plant is small, this type of transportation using trolleys can be used.However, when the number of target vehicles increases, the number of trolleys is insufficient due to the time required for loading and unloading. And
There is a problem that it is not possible to move between the processes in a timely manner, which hinders work efficiency.

[0005] In particular, a crawler traveling type working vehicle cannot be moved unless the crawler belt is attached to the traveling carriage as described above.
Therefore, the shortage of traveling carts for movement causes not only an assembling operation but also a very inconvenient shipping operation at the time of shipping. For this reason, it is conceivable to attach a temporary transport wheel for transport to the crawler belt driven sprocket of the main body during the assembly process so that transport can be performed without preparing a separate cart, but traveling with a heavy main body If this is done, the iron wheels will damage the pavement road surface, so it is necessary to lay an iron plate on the running path and run over it, which causes a problem that slipping cannot be performed smoothly. In addition, the traveling wheels must also be arranged at the front of the main body in conjunction with the rear support using the temporary transport wheels utilizing the sprocket, which is structurally unresolved and is regarded as impractical. I have.

Japanese Patent Laid-Open Publication No. Hei 6-78005 discloses a prior art in which an outer periphery of a wheel is covered with an elastic material to protect a road surface only when the traveling wheel travels on a general road. . This prior art is a protective cover for front and rear wheels mounted on a working vehicle for performing rolling work by an iron wheel such as a trash compactor, and covers a number of protrusions formed on the outer peripheral surface of the iron wheel in a circle. A cover made of a plurality of elastic bodies divided in the circumferential direction is detachably attached. And this iron ring protection cover is formed at the center of the tread surface with a space between a number of ridges provided on the iron ring, with a mounting plate provided on the inner periphery of the elastic body divided into a plurality in the circumferential direction. It is described that the outer ring is covered with a split ring made of an elastic material to protect the road surface from being damaged by a ridge.

However, since the iron ring cover is structured such that a plurality of iron ring covers made of an elastic material are attached using a centering formed at the center in the width direction of the iron ring, the work for attaching and detaching the iron ring is performed. Is awkward. In addition, in the mounted state, the iron ring cover is supported by the centering and the tips of a number of ridges formed on the peripheral surface. Therefore, in such a structure, the weight of the running body is large. And the load will be greatly affected by the ridge and centering, and will be affected. It is effective, and it is difficult to apply it to a large crawler traveling type construction machine. In addition to this, in a track-type traveling large construction machine, traveling wheels cannot be temporarily assembled only by using a sprocket in a main body portion, as compared with a wheel traveling type such as the trash compactor, and in other cases, There is a problem that it is necessary to separately attach the running wheels, and a countermeasure must be taken.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem. A main body, which is difficult to be transported in an assembling process, is assembled into a state in which the main body can be shipped as it is without the need for a tow truck. It is an object of the present invention to provide a self-propelled disassembly / transport device for a large construction machine vehicle that can be self-propelled at the time of transfer.

[0009]

In order to achieve the above-mentioned object, a self-propelled disassembly / conveyance device for a large construction machine vehicle according to the present invention is provided outside a rear portion of a main body of a crawler traveling construction machine. A traveling wheel removably fitted to the crawler belt driving sprocket, and a caster-type front traveling cart detachably attached to a lower front part of the main body and supporting the front part of the main body, The running wheels are meshed with the teeth of the sprocket, and the treads are formed of an elastic material so as to be integrally supported.The running wheels of the front running truck are swingable at both ends of the mounting support frame. It is characterized by being attached.

In the present invention, after assembling the target construction machine into a drivable state by assembling the parts of each part within a range that can be transported to the main body in the assembling process, the projecting parts protrude from both sides of the rear part of the main body. A running wheel having an outer periphery (tread surface) formed of an elastic material is mounted on the provided crawler belt driving sprocket so as to mesh with the sprocket teeth so as to cover the outside. In this way, when the driving sprocket is rotated by a built-in driving machine, the vehicle can run on its own by the running wheels. In addition, the support frame of the front traveling carriage is detachably attached to the front lower part of the main body to support the front half of the main body, and the left and right traveling wheels of the front traveling carriage and the traveling wheels on both sides of the rear part are used. When the drive unit is driven and the sprocket is rotated, the running wheels rotate together and can run on their own, and the running wheels of the front running truck can swing freely, so the rear running By driving the wheels in the running direction, the vehicle can change direction and run freely.

According to the present invention, if a traveling wheel is mounted on a sprocket instead of a crawler belt and a traveling cart is attached to a lower front portion of the main body, if a combination position of a device such as a working machine with respect to the main body can be confirmed. , Can be moved from the assembly line to the next work position without assembling it into a completed car, or to the shipping location after the inspection is completed, which saves labor for assembling and disassembling,
There is an effect that cost can be reduced. In addition, the self-propelled running as described above eliminates the need for a conventional mobile trolley or a towing vehicle, and thus has many advantages such as improvement in work efficiency.

The running wheel is provided with an engaging portion meshing with the teeth of the sprocket on the drive shaft on the inner periphery, and an outer wheel wider than the tooth width is formed on the outer peripheral side of the engaging portion. The outer peripheral portion of the sprocket is formed of an elastic material, and is attached and detached by bolting from outside of a side plate integrally provided so as to cover one side surface of the engaging portion provided on the inner periphery of the outer ring so as to sandwich the tooth portion of the sprocket. Preferably, it is configured to be mounted as possible (second invention).

According to the second aspect of the present invention, the running wheel is fitted to the sprocket assembled in the assembling process so that the engaging portion is fitted to the tooth portion from the outer surface, and the running wheel is interposed via the side plate. The sprocket can be mounted by fastening the side portions with bolts so as to sandwich the teeth of the sprocket. In this way, the running wheel can be mounted so as to cover the sprocket, so if the running wheel is grounded on the road surface for movement, a tread made of elastic material is formed on the peripheral surface of the outer ring, and the outer ring is The entire circumference of the sprocket is integrally supported by the engaging portion that meshes with the tooth portion and engages with the tooth bottom. It has shared treads and a tread made of elastic material, so it can run without slipping. Also, it does not hurt the road surface. When removing the traveling wheel at the shipping place, the fastening bolt is removed, and the load on the traveling wheel is removed, and the traveling portion is moved in the axial direction as it is to remove the engaging portion from the tooth portion of the sprocket. ) Has the advantage that it can be easily removed without damaging it.

The running wheel according to the first or second aspect of the invention has an outer dimension approximately matching the tooth bottom of the sprocket teeth to be engaged with the inner peripheral side of the outer ring portion formed of a metal plate to a required diameter. A cylindrical member slightly longer than the tooth width
One of the ring-shaped side plates is disposed so as to match the pitch of the tooth portions and is integrally welded to the outer ring portion and the ring-shaped side plate to form an engaging portion, and penetrates the inside of the cylindrical member. It is preferable that a bolt hole for fastening is provided on the sprocket, and the engaging portion is fitted to the teeth from the side surface of the sprocket to be attached (third invention). In this way, the running wheel can be fitted from the outside onto the attached sprocket, and can be integrated by engaging all the teeth of the sprocket during running. The sprocket can be rotated, and the tubular members of the engaging portions are fitted to the tooth bottoms, so that the load at the time of contact with the ground can be received by the entire sprocket and the vehicle can travel smoothly.

[0015] In the first invention or the second invention,
In the running wheel, a ring-shaped side plate is integrally disposed on a coaxial line at an intermediate position in a width direction on an inner peripheral surface of an outer ring, and engagement portions that mesh with sprocket teeth of different pitches on both sides of the ring-shaped side plate. It is preferable that the ring-shaped side plate and the presser foot are provided so as to be detachably mounted by fastening bolts with the teeth of the sprocket sandwiched therebetween (a fourth invention). In this way, it is possible to prepare a corresponding running wheel for a model having a predetermined sprocket, and select and use both sides thereof to correspond to a model having a sprocket with a different pitch, The storage space when not in use can be reduced, the management can be facilitated, and the economy can be improved.

[0016] It is preferable that one side wall of the tire is attached to the outer wheel of the running wheel so that the sidewall can be fixed to the metal outer wheel portion (fifth invention). According to this configuration, the tire can be mounted on the outside of the metal outer ring portion having the engagement portion by using a tire for an industrial vehicle, and a running wheel utilizing the cushioning property of the tire can be obtained. The traveling of a certain body can be made more effective.

Further, in the first invention to the fourth invention, it is preferable that a plurality of block-shaped rut pieces made of an elastic material are attached to the outer ring of the running wheel at a required pitch (a sixth invention). ). This has the advantage that the resistance to the road surface during traveling can be reduced and the steering operation is facilitated. In addition, there is an advantage that a new one can be individually replaced when damaged.

The front traveling carriage has a main frame detachably attached to a lower front part of the main body, and a required length pivotally supported at a central portion by the main frame and capable of swinging right and left, and having axes at both ends. It comprises a wheel support frame provided with bearings formed in the up-down direction, and a pair of left and right running wheels which are mounted on the bearings at both ends of the wheel support frame and are attached to the bearings so as to swing freely. 7th invention). By configuring the front traveling cart in this manner, when the main frame is attached to the lower front part of the main body, the front half of the main body is supported, and the traveling wheel is mounted on the rear sprocket and travels. Since the wheel supporting frame is pivotally supported by the main frame at the center in the width direction of the road surface, the traveling wheels correspond to the inclination. Since the running wheels can swing freely, the running wheels can change their direction according to the load at the time of running, and can travel and move freely on the road surface. Then, when it is used up, it can be easily removed when the connection with the main body is cut off, so that there is an advantage that it can be used repeatedly for another transported machine.

Further, in the present invention, it is preferable that auxiliary wheels are provided on the main frame of the front traveling vehicle so that the wheels float from the support position when not in use by replacing the fixing pins. Eighth invention). In this way, when the front traveling cart is not mounted on the assembly main body, the front traveling cart can be stored in a stable posture with the traveling wheels by setting the auxiliary wheels upright so as to be in contact with the ground. There is an effect that can be. In addition, when moving the device at the time of use, a stable posture is maintained and handling is convenient.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific embodiment of a self-propelled disassembly / transport device for a large construction machine vehicle according to the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing an embodiment of a self-propelled disassembly and transport apparatus for a large construction machine vehicle according to the present invention. FIG. 2 is a plan view showing a part of FIG.
FIG. 3 is a front view of the rear running wheel, FIG. 4 is a longitudinal sectional view taken along the line AA in FIG. 3, FIG. 5 is a plan view of FIG. 3, and FIG. The respective partially cut-away sectional views are shown. 7 is a front view of the front traveling vehicle, FIG. 8 is a plan view of the front traveling vehicle, and FIG. 9 is a right side view of FIG.

In the present embodiment, a self-propelled disassembly / conveyance device used in an assembly process of a large bulldozer will be described.

In this embodiment, the self-propelled disassembly / conveyance device is assembled from the engine to the rear crawler drive sprocket in the process of assembling the bulldozer main body, and the main body 1 is attached to the cab and left and right track frames. In addition, it is mounted in the middle of assembling, with a running part such as a crawler belt and a work machine such as a blade or a ripper that is assembled to an external shape that fits within the allowable height of the trailer during transportation.

The self-propelled disassembly / conveyance device includes a traveling wheel 10 mounted on left and right crawler belt driving sprockets 3 (hereinafter simply referred to as sprockets 3) incorporated in a rear portion of a frame of a main body 1, and a front lower portion of the main body 1. Front traveling carriage 20 to be mounted
These are configured so that they can be attached to and detached from the main body 1 of the bulldozer that is the object to be transported.

The running wheel 10 has an outer ring 12 made of a steel plate having a required diameter which can be fitted on the outer periphery of the sprocket 3.
The sprocket 3 to be engaged on the inner peripheral side of the outer race 12
A required number of cylindrical members 13 having external dimensions approximately equal to the tooth bottom 3b of the tooth portions 3a and slightly longer than the tooth width are arranged and welded so as to match the pitch of the tooth portions 3a, and are welded. Ring-shaped side plates 1 on both sides of cylindrical member 13
The ring wheel 11 is formed by welding the members 4 and 15 together, and a tire 17 made of an elastic material (referred to as a tire 17 for convenience) is attached to the outer periphery thereof.

The width of the outer ring 12 is determined by the side plates 14 and 15.
Each of them is extended outwardly from the mounting portion of each of them, and is dimensioned to sufficiently withstand the load during traveling. Further, of the ring-shaped side plates, one side plate 15 has an inner diameter larger than the outer diameter of the sprocket 3, and the other side plate 14 has an outer diameter of the reduction gear casing 4 integrally formed with the sprocket 3. The inside diameter of the other side plate 14 is made larger by welding the side end of each tubular member 12 so as to be integrated, and a mounting bolt can be inserted through the inside of each tubular member 12. A bolt hole 16 is provided. As shown in FIG. 4, the side plate 15 on the opposite side (one side) to the side plate 14 is integrally welded with the insertion portion of the mounting bolt opened.

The tire 17 attached to the outer peripheral surface of the outer race 12 is formed by bonding a plate material made of a relatively thick elastic material (for example, rubber material such as beech N or urethane rubber). The tire 17 made of the elastic material is further fixed to the outer race 12 made of a steel plate by a plurality of metal holding members 18 (formed of flat steel or the like) at an appropriate pitch. As illustrated in FIG. 5, the elastic material forming the tire 17 is formed such that the seam 17a is cut into each other to be held down by the holding metal 18a so that the adhesive is not peeled off. I have. You may make it print as needed. In this embodiment, the track frame supporting pivot shaft 5 protruding from the side surface of the main body 1 is provided close to the sprocket 3. It has a structure in which an elastic plate is wound. Therefore, if the position of the pivot shaft 5 is far away from the sprocket 3, or if the structure does not cause any trouble, a tire having another structure can be mounted.

The traveling wheel 10 constructed as described above is shown in FIG.
As shown in the figure, the cylindrical member 13 arranged on the inner peripheral portion thereof
Are fitted to the respective tooth bottoms 3b of the sprocket 3 from the outer surface as shown by the arrow a. In this case, the teeth 3a of the sprocket 3 and the cylindrical member 13 are engaged with each other, so that the mounting bolt 19 is inserted from the outside into the bolt hole 16 provided in the outer side plate 14 on the opposite side (the body side) to wash the washer. By fastening with a nut with the interposition of the sprocket 3
Abuts against the side surface closer to the shaft side than the tooth bottom 3b, the fastening force of the bolt is secured, and the running wheel 10 is integrally mounted on the sprocket 3.

Next, as shown in FIGS. 7 to 9, the front traveling carriage 20 is detachably mounted on a bracket 6 projecting from the center line of the main body 1 in the lower front part of the main body 1 by connecting pins 7. Main frame 21 and bearings 26, 26 having a central portion pivotally supported by the main frame 21 and having a required length capable of swinging left and right and having axial lines formed at both ends in the vertical direction.
And a pair of left and right running wheels (casters 30) which are mounted on the bearings 26, 26 at both ends of the wheel supporting frame 25 and the mounting shaft 32 is mounted to swing freely. ing.

The main frame 21 is provided on its upper surface with a contact member 22 connected to the main body 1 side by the connecting pin 7 and abutting against a downward slope 1a on the main body side of the connection portion to keep the posture horizontal. A pair of downwardly facing support pieces 23 are provided on the lower surface at required intervals in the front-rear direction and are integrally welded to each other.
Five pivots 23a are provided.

The wheel support frame 25 is formed to have a length longer than at least the width of the main body 1 to be supported, and is bent upward on both left and right sides by a required dimension, and bearings 26, 26 having a vertical axis are provided symmetrically at both ends. Have been. A boss 25a is provided at the center, and a shaft hole is formed through the boss 25a horizontally in the front-rear direction. A pivot shaft 27 is provided in the mounting hole provided in the pivot portion 23a of the main frame 21 and the shaft hole. The wheel support frame 25 is connected so as to be rotatable around the pivot shaft 27 by being inserted. Also, bearings 2 at both left and right ends
The casters 30 are respectively supported by the mounting shafts 32 of the support brackets 31 through the casters 6 and 26. Reference numeral 32 'denotes a stopper for the attachment shaft 32.

At the lower front side of the main frame 21, a mounting plate 28 is provided so as to protrude forward.
In FIG. 8, an auxiliary caster 35 is pivotally attached to an auxiliary caster 35 so as to be rotatable back and forth by connecting a pin 34 at the base as shown in FIG. This auxiliary caster 35
Are supported so that they can move independently when detached from the main body 1 on which the front traveling carriage 20 is mounted. Is made to emerge.
When the auxiliary caster 35 is not used, the mounting portion by the fixing pin 37 provided at the tip of the mounting bracket 36 is rotated rightward in the drawing to dispose the fixing pin hole provided on the mounting plate 28 when not in use. The wheel can be raised by inserting and fixing the fixing pin 37 to 38. In addition, holes 34 ', 37', and 3 provided at a position (right side in the figure) opposite to a mounting portion of the auxiliary caster 35 in the figure.
Reference numeral 8 'is provided so that the auxiliary caster 35 can be used after being replaced at this position.

The traveling wheel 10 and the front traveling vehicle 20 configured as described above are assembled on a target large construction machine assembly line through a process of assembling the respective parts until the main body 1 has an outer shape capable of being transferred. When the transportable state is reached, the running wheels 10 are mounted on the left and right sprockets 3 after performing a required inspection or before the inspection. Further, a front traveling carriage 20 is attached to a lower front part of the main body 1.

As described above, the running wheel 10 is positioned from the outer surface of the sprocket 3 so that the cylindrical member 13 in the engaging portion corresponds to each tooth bottom and is fitted. The running wheel 10 can be externally fitted to the sprocket 3. Therefore, a bolt is inserted from the outside into the bolt hole 16 provided in the ring-shaped side plate 14, and the washer 1 is
When the nut is tightened with the interposition of 9 ', a part of the washer 19' is hung near the center from the tooth bottom of the sprocket 3, and the sprocket 3 can be sandwiched and fixed between the washer 19 'and the outer side plate 14. , Can be installed. In this state, the running wheel 10 is brought into contact with the tooth bottom 3b at the same time that the cylindrical member 13 arranged on the inner side of the outer ring 12 forming the ring wheel 11 meshes with the sprocket 3 and the sprocket 3 and the ring. The wheel 11 is integrated.

The front traveling vehicle 20 is connected to the lower front portion of the main body by the connecting pin 7 as described above, and the contact member 22 comes into contact with the inclined surface. It will be in the state that was done. Therefore, the front part is supported by the front traveling carriage 20, and the rear part is traveling wheels 10
Will be supported by.

When the main body 1 is assembled in such a manner as to be able to run, the drive unit 2 is operated to rotate the sprockets 3, 3, and the running wheels 10, 10 fitted onto the sprocket 3 are fitted. Can rotate and run on its own. Accordingly, if the main body 1 is driven forward, the main body 1 can move on its own, so that the main body 1 can be transferred to a required place and moved to the next step. During this traveling, the tire 17 serving as the outer peripheral tread of the traveling wheel 10 can travel without slipping since the elastic material is wound thereon, and does not damage the road surface due to ground contact. Note that the tire 17 has a holding bracket 18.
Because it is strongly attached to the ring wheel 11, it does not peel off. Then, when the traveling wheel 10 (sprocket) is run, the front traveling vehicle 20 can freely change its direction because the casters 30 are arranged on the left and right, and can be moved to an arbitrary position. Therefore, when the processing in the assembling process is completed, it becomes possible to ship the finished vehicle without assembling,
Since the conventional disassembly work can be omitted and the traveling movement can be performed immediately, it is possible to obtain an effect that the waiting for the work can be eliminated.

In order to remove the disassembly / transportation device from the construction machine main body upon shipment, the main body is hung by a lifting machine to make it into a ground state, or after being mounted on a transport vehicle such as a trailer,
The running wheel 10 can be easily removed by removing all the mounting bolts and pulling out the lateral direction from the sprocket while supporting it with a lifting machine or a forklift. Further, the front traveling cart 20 can be easily separated by pulling out the connection pin 7 with the main body 1 with the auxiliary caster 35 in the used state. In this manner, the disassembled and transported device that has been removed can be forwarded to the next operation step and used again.

Next, FIG. 10 shows another embodiment of the running wheels. 10A is a side view, FIG. 10B is a sectional view taken along the line AA in FIG. 10A, and FIG. 10C is a perspective view of a rut.

The running wheel 10A of this embodiment has basically the same configuration as that of the above-described embodiment, except for the configuration of only the tire portion. Therefore, the same reference numerals are given to the same or similar parts as in the above-described embodiment, and the description is omitted.

The running wheel 10A is a ring wheel 11
Is almost the same as that of the above-described embodiment. Then, rectangular rod-shaped members 18A are integrally provided in the outer peripheral portion of the outer ring 12 at a predetermined pitch in the width direction.
A track piece 17A (block 17A) formed of an elastic material as shown in FIG. 10 (c) is fixed between 8A by bolts. The rod-shaped member 18A serves as a spacer for stably holding the block 17A provided.

According to the running wheel 10A formed in this manner, the block 17A in which the tire portion is formed of an elastic material.
It is structured to be attached at required intervals, so that the contact with the ground contact surface during traveling is more stable with less ground resistance than a tire formed of an elastic plate material as in the above-described embodiment. There is an effect that traveling can be performed. In addition, even if worn, it can be replaced in block units, which is convenient. In addition, the durability of the block can be increased by selecting and forming a material suitable for traveling as a component of the block.
It is effective to use, for example, a retrofitted rubber crawler plate used for the crawler belt for the block 17A.

Further, as shown in FIG. 11, a mounting ring 40 is externally fitted to the outer peripheral portion of the sprocket 3 and attached in the same manner as the ring wheel 11, and a bolt is attached to the mounting ring 40 by a side wall portion 45a. By adopting a structure in which the tire 45 for an industrial vehicle is externally fitted so as to be fastened at 42, the tire can be made similar to a wheel wearing a tire for a general vehicle, and the cushioning property can be improved. Even in the case of such a type, there is no problem as long as the manner of attachment to the sprocket 3 is the same as in the above-described embodiment.

12 (a) to 12 (c) show another embodiment of the traveling wheel, which is a traveling wheel 10C which can be used for a model having sprockets of different pitches using both surfaces. It is.

The running wheel 10C of this embodiment is basically the same as the running wheels 10 and 10A of the above embodiment, but can be used on both sides so that sprockets mounted on the ring wheel can correspond to those having different pitches. An engaging portion is configured. As shown in FIG. 12 (b), a ring-shaped side plate 14 'is integrally fixed to the inner periphery of the outer ring 12' having a required width at a substantially central position in the width direction thereof and integrally with the outer ring 12 '. Cylindrical members 13 ', 1 at different pitches on both sides of
3 "are arranged in the circumferential direction and attached integrally. Each of the outer surfaces of the cylindrical members 13 'and 13" has a ring-shaped inner diameter larger than the outer diameter of the sprocket 3 to be mounted. The side plate 15 'is integrally welded to the outer ring 12' and attached. The cylindrical members 13 ', 1
3 ″ is a sprocket 3 mounted in the same manner as in the above-described embodiment.
Are arranged so as to engage with the respective tooth bottoms.

In the running wheel 10C in this embodiment,
Regarding the arrangement of the tubular members 13 ', 13 "on both sides,
Since the number of teeth of the sprocket 3 to be mounted is the same and the pitch is different, the bolt 19 is connected to each cylindrical member 13 'so that the side plate 14' has a common bolt hole 16 for fastening the bolt at the time of mounting. , 13 ". In the case where the number of teeth of the sprocket 3 is different, a position which can be commonly used on both sides is selected, and a bolt hole is provided at that position.

A rod-shaped member 18 'having a rectangular cross section is attached to the outer peripheral surface of the outer ring 12' at a predetermined pitch in parallel with the axis, and a rut piece 17 'is detachably mounted between the rod-shaped members 18'. Installed. As the track piece 17 ', a retrofitted rubber pad as a shoe plate is mounted. Note that reference numeral 1 in FIG.
Reference numeral 2a denotes a mounting seat for the shoe plate (rear-mounted rubber pad) provided on the peripheral surface of the outer race.

If such a running wheel 10C is employed, the engaging portion on the side corresponding to the driving sprocket of the transported vehicle to be mounted is attached to the teeth of the sprocket 3 in the same manner as in the above embodiment. The cylindrical member 13 "(13 ') is fitted and fitted from the outside so that the cylindrical member 13"(13') meshes. Then, the bolt 19 is inserted from one end of the cylindrical member 13 'into the washer 1.
9 "(a bolt hole is provided in this washer), and the bolt hole 16 of the side plate 14 'is inserted. The screw is screwed into a screw hole of a presser 19' (a washer) arranged on the main body side and tightened. , And the side plate 14 'sandwiches and fixes the teeth of the sprocket 3. In this manner, the traveling wheel 10C can be mounted on the driving sprocket 3. In this state, the traveling wheel 10C is mounted on one side in the width direction of the traveling wheel 10C. Although it will be mounted on one side, it is mounted symmetrically on the left and right sides of the car body,
Side plate 1 to be attached integrally to outer ring 12 'at its center
Since the sprocket 3 is fastened to 4 'by the bolt 19 and the presser foot 19', there is no problem with respect to the load during traveling.

When the running wheel 10C is mounted on a sprocket having a pitch different from that described above, the running wheel 10C is turned to the corresponding side, and fitted to the sprocket in the above-described manner to be mounted. It can correspond to the model vehicle. The front traveling vehicle is used by being mounted as described above.

As described above, the running wheels 10C are provided with the engaging portions so that sprockets of different pitches mounted on both sides can be mounted, so that the running wheels 10C can be adapted to vehicles having different sprockets for the convenience of work. Can be used for two types of vehicles by changing the orientation to suit. Therefore, it can be used rationally without preparing many extra-sized ones. In addition, when the running wheels of various sizes are stored when not in use, the wheels can be shared, so that there is an advantage that the storage space is reduced and the management becomes easy. Of course, since the number of products can be reduced, the economic effect can be enhanced.

When the running wheel 10 (10A or the like) is bolted to the sprocket 3 in the above embodiment, the washer arranged on the main body side is a ring-shaped one having a width suitable for being pinched by a mounting bolt along the side surface of the sprocket. Is more easily handled and workability is improved as compared to individual fastening using washers, when the holding seat pieces (not shown) are used.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a self-propelled disassembly / conveyance apparatus for a large construction machine vehicle according to the present invention.

FIG. 2 is a plan view showing a part of FIG. 1 with a part omitted;

FIG. 3 is a front view of a rear traveling wheel.

FIG. 4 is a partial vertical cross-sectional view taken along the line AA of FIG. 3;

FIG. 5 is a plan view of FIG. 3;

FIG. 6 is a partially cut-away sectional view showing a mode in which a traveling wheel is mounted on a sprocket.

FIG. 7 is a front view of the front traveling bogie.

FIG. 8 is a plan view of the front traveling vehicle.

FIG. 9 is a right side view of FIG. 7;

FIGS. 10A and 10B show another embodiment of the running wheel, in which FIG. 10A is a side view, FIG. 10B is a sectional view taken along the line AA in FIG. 10A, and FIG. It is a perspective view.

FIG. 11 is a partial sectional view showing another embodiment of the running wheel.

FIG. 12 is a view showing an embodiment of a running wheel applicable to sprockets having different pitches, where (a) is a front view showing two surfaces having different pitches at the same time, and (b) is a partial longitudinal sectional view. And (c) is a sectional view showing a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body of construction machine 3 Drive sprocket 6 Bracket for connection 7 Connection pin 10, 10A, 10B, 10C Running wheel 11 Ring wheel 12, 12 'Outer ring 13, 13', 13 "Cylindrical member 14, 14 ', Reference Signs List 15 side plate 16 bolt hole 17 tire 17A, 17 'rutted piece (block) 18 retainer 18A, 18C square rod-shaped member 19 mounting bolt 19' washer 20 front traveling trolley 21 main frame 22 contact member 25 wheel support frame 26 bearing 27 pivot axis 30 caster 35 auxiliary caster 40 mounting ring 45 tire

Claims (8)

[Claims] 1. A traveling wheel detachably fitted to a crawler driving sprocket provided outside a rear portion of a main body of a crawler traveling construction machine, and a front portion of the main body detachably attached to a lower front portion of the main body. The traveling wheels are formed of an elastic material so that the running wheels are integrally supported by meshing with the teeth of the sprocket. A self-propelled disassembly and transport device for a large construction machine vehicle, wherein the bogie has traveling wheels attached to both ends of the mounting support frame so as to swing. 2. The running wheel is provided with an engaging portion meshing with the teeth of the sprocket on an inner periphery, and an outer ring wider than a tooth width is formed on an outer peripheral side of the engaging portion. The portion is formed of an elastic material, and is detachably attached by bolting from outside the side plate integrally provided so as to cover one side surface of the engaging portion provided on the inner periphery of the outer ring so as to sandwich the tooth portion of the sprocket. The self-propelled disassembly / transport device for a large construction machine vehicle according to claim 1, wherein the self-propelled disassembly / transport device is configured to be mounted. 3. The running wheel has an outer dimension approximately equal to a tooth bottom of a tooth portion of a sprocket to be engaged with an inner peripheral side of an outer ring portion formed of a metal plate to a required diameter, and is slightly longer than its tooth width. A cylindrical member having dimensions is arranged so as to match the pitch of the tooth portions, and is integrally welded to the outer ring portion and the ring-shaped side plate to form an engaging portion, and penetrate the inside of the cylindrical member. 3. The large construction machine vehicle according to claim 1, wherein a bolt hole for fastening is provided in one of the ring-shaped side plates, and the engagement portion is fitted to the teeth from the side surface of the sprocket and attached. A traveling disassembly and transport device. 4. The running wheel has a ring-shaped side plate disposed integrally on a coaxial line at an intermediate position in a width direction on an inner peripheral surface of an outer ring, and sprocket teeth having different pitches are provided on both sides of the ring-shaped side plate. 3. The structure according to claim 1, wherein an engaging portion is provided to be engaged with the ring-shaped side plate and the presser foot so that the sprocket tooth is sandwiched between the ring-shaped side plate and the presser foot.
A self-propelled disassembly / conveyance device for a large construction machine vehicle according to the above item. 5. The self-propelled disassembly of a large construction machine vehicle according to claim 1, wherein one side wall of the tire is attached to an outer wheel of the traveling wheel so as to be able to be fixed to a metal outer wheel portion. Transport device. 6. The large construction machine vehicle according to claim 1, wherein a large number of block-shaped rut pieces made of an elastic material are attached to an outer ring of the running wheel at a required pitch. Self-propelled disassembly and transport device. 7. The front traveling cart has a main frame detachably attached to a lower front portion of the main body, and a main frame pivotally supported at a central portion by the main frame and having a required length capable of swinging left and right at both ends. It is composed of a wheel support frame provided with a bearing whose axis is formed in the vertical direction, and a pair of left and right running wheels which are mounted on both ends of the wheel support frame with the mounting shaft supported by the bearing so as to swing freely. A self-propelled disassembly / transport device for a large construction machine vehicle according to claim 1. 8. The large construction according to claim 7, wherein the main frame of the front traveling bogie is provided with auxiliary wheels for allowing the wheels to float from the support position when not in use by replacing fixing pins. Self-propelled disassembly and transport equipment for mechanical vehicles.