JPS6143664Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a traveling bogie device that has the functions of a crawler type traveling device and a rubber tire type traveling device.

As conventional traveling devices, traveling truck devices equipped with crawlers and traveling truck devices equipped with rubber tires are often used.

However, the above-mentioned traveling bogie device equipped with the crawler-type traveling device damages the pavement surface when traveling on an asphalt-paved road, especially when changing the direction of travel. Traveling bogie devices can move easily on well-maintained running roads, but they each have their own problems, such as tires sinking in and making it impossible to run on rough or soft ground. Also, Publication No. 54412 of 1984 or Publication No. 54412 of 1983-
As shown in Publication No. 366334, a traveling bogie device is equipped with both a crawler-type traveling device and wheels, and is capable of switching between traveling by crawlers and wheels by adjusting the height position of the wheels up and down with respect to the crawler. However, in this method, the structure for adjusting the vertical position of the wheels is very complicated, and when traveling on wheels, a very large load of the entire traveling bogie device is applied to the vertical position adjustment mechanism. Since the vertical position adjustment mechanism must be constructed to be robust, there is a problem that the weight and cost of the device increases.

The present invention was developed to solve the above problems of the conventional system at once, and it uses a driving shaft and a driven shaft that are integrally provided in each of the driving tumbler and the driven tumbler, each of which has a crawler track between their outer peripheries. A rubber tire is provided that projects outwardly and is detachably attached to the protruding portion of each shaft, and has a size such that its lower surface protrudes further downward than the lower surface of the footwear at the driving tumbler and driven tumbler positions. The present invention relates to a characteristic traveling bogie device.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the front end portions of the traveling truck frames 2 provided on the left and right sides of the traveling truck 1 are bifurcated in the left-right direction, and bearings 3 are provided at the tips of the two forks. 3', the driven shaft 4 is rotatably supported, and the rear end of each of the traveling bogie frames 2 is bifurcated in the left-right direction, and a bearing 5 is provided on the outer side of the two prongs. A reducer 7 having a hydraulic motor 6 is fixed to the bifurcated inner member, and a drive shaft 8 protruding from the reducer 7 is supported by the bearing 5.

Next, the drive tumbler 9 is locked with a key 10 between the bearing 5 of the drive shaft 8 and the reducer 7, and the driven tumbler 9 is locked between the bearings 3 and 3' of the driven shaft 4.
1 is locked with a key 12, and an endless shoe body 13 is provided between the driving tumbler 9 and the driven tumbler 11.

Furthermore, the outer ends of the driving shaft 8 and the driven shaft 4 are provided to protrude further outward than the bearings 5 and 3, and a boss 14 is provided with a key 15 secured to the respective protruding portion, and A rubber tire 116 is attached and detached with bolts 17. At this time, the outer diameter of the rubber tire 16 is set to a size such that its lower portion protrudes below the ground contact surface of the crawler belt 13 by a required amount. In the figure, reference numeral 18 denotes a soil removal plate device attached to the traveling truck frame 2.

Further, a rotation body is placed on the traveling trolley 1, and the rotation body includes a drive source section 19, an operation section 20,
It is equipped with an excavation work section 21 and the like.

According to the traveling bogie device having the above configuration, since the rubber tires 16 have a size that projects below the crawler belt 13 by a required amount, the rubber tires 16 receive the full load on hard flat ground, and therefore the drive tumbler 9, Since the driven tumbler 11 and the footwear 13 are far from the ground, even if the left and right hydraulic motors are driven at the same speed to drive straight on a paved road, the driving speed of the left and right hydraulic motors is changed to change the direction. Even if the conversion is performed, the pavement surface etc. will not be damaged. Further, if the running road surface is not flat, part of the load may be received by the rubber tires 16, and the remaining load may be received by the tumblers 9, 11 and the footwear 13. Also, if the running surface is soft ground, the load may be Most of the damage can be received by the tumblers 9, 11 and the crawler belt 13, so it is possible to travel according to the condition of the road surface without any adjustment. Furthermore, when the rubber tires 16 are not required, the bolts 17 can be loosened, the rubber tires 16 can be removed from the traveling carriage 1, and the rubber tires 16 can be used in the same condition as a conventional crawler type traveling carriage.

It should be noted that the present invention is not limited to the above-described embodiments, and the shapes of the constituent parts are not limited to those shown in the drawings, and it is of course possible to make various changes without departing from the gist of the present invention. .

According to the above-mentioned traveling trolley device of the present invention, since the rubber tires are provided that protrude a required amount below the footwear, the rubber tires support the entire load on a flat and well-equipped running road, allowing the vehicle to travel easily. Moreover, when running or changing direction, the road surface is made of rubber tires, so there is no damage to the running road surface, and when running or working on rough or soft ground, crawler-type running is possible. This prevents the vehicle from acting in the same way as a trolley and becoming unable to travel, making it possible to travel according to the condition of the road surface without the need for any adjustments. By being able to be installed and removed coaxially with the main unit, the structure is simplified, maintenance and inspection are easy, and it can be carried out at low cost.

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing an embodiment of the present invention;
Figure 2 is a view from the direction of Figure 1, Figure 3 is an enlarged explanatory diagram showing one side of the traveling truck when Figure 1 is viewed from the direction, Figure 4 is a view from Figure 1 when viewed from the direction. It is an enlarged explanatory view showing one side of a traveling truck. 1 is a traveling platform, 2 is a traveling platform frame, 3, 3'
is a bearing, 4 is a driven shaft, 5 is a bearing, 6 is a hydraulic motor, 7 is a reducer, 8 is a drive shaft, 9 is a drive tumbler, 11 is a driven tumbler, 13 is a shoe body, 14 is a boss, 16 is a rubber tire, 17 indicates a bolt.

Claims (1)

[Scope of utility model registration request] The drive tumbler and the driven tumbler, each of which is equipped with a crawler track between their outer peripheries, have a driving shaft and a driven shaft provided integrally with each other, and are provided so as to project outwardly, and the driving tumbler and the driven tumbler are connected to the projecting portions of the respective shafts. A traveling bogie device comprising a rubber tire having a size such that its lower part protrudes further downward than the lower surface of the crawler track at the tumbler position.