JPH0958537A - Low car height carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a total car height, to increase a lowest ground height, and to improve running ability by a method wherein the high part side of a dog leg type main frame is mounted on a running frame having right and left crawlers, an engine is arranged on the upper surface of the low part side, and a table for carriage is arranged on the upper surface of the high part side. SOLUTION: In a workshop, such as an underground construction site, limited by height, a low car height carrier to carry materials is provided with the right and left crawlers 3 of the running frame 2 of a lower running body. An engine 11 and a hydraulic pump are disposed sideways at the rear end part on the low part side of a dogleg type main frame 5 mounted on the running frame 2 in such a manner that the crawler 3 has width enough to allow containing thereof. A fuel tank 15 and a battery 17 are disposed on the low part side of the main frame 5 and in front of the engine 11 and a table 25 for carriage is mounted in front of the upper part of the running frame 2. This constitution ensures a total car height in such a manner to be lower than that of a conventional type and a lowest ground height h1 in such a manner to be higher than that of a conventional type.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low vehicle height transporter for transporting materials and the like in a work site such as a building construction or an underground construction site where height is restricted.

[0002]

2. Description of the Related Art PCs for building construction and underground construction sites
Most of the work involves transporting heavy materials such as beams, PC boards, and steel frames to the installation site. It is impossible to manually transport such a heavy material, and a transport machine is required. Moreover,
Since the height is often restricted at the work site as described above, a low vehicle height transporter having a low vehicle height is required.

As such a low vehicle height carrier, for example, there is one provided with a crawler type undercarriage proposed by Japanese Patent Application No. 6-062539. 14 and 15 are a side view and a front view, respectively, of the low vehicle height transporter,
A description will be given based on FIGS. 14 and 15. Undercarriage 60
Crawler belts 62, 62 mounted on the left and right of the traveling frame 61 of
Engine room 63 that accommodates an engine, a hydraulic pump, and the like between the front and rear ends of the traveling frame 61.
Is provided, and a tank cover 64 accommodating a hydraulic oil tank, a fuel tank, and the like is provided on the other end side in the front-rear direction.

On the upper part of the substantially central portion of the traveling frame 61,
A carrying table 65 is rotatably mounted so as to overlap the engine room 63 and the tank cover 64. The turning hydraulic motor 66 is attached to the traveling frame 61, and only the turning pinion 67 provided on the rotating shaft of the turning hydraulic motor 66 projects upward from the traveling frame 61.
The inner teeth provided on the lower inner cylinder side of the carrying table 65 meshes with the turning pinion 67, and the turning hydraulic motor 66 turns so that the carrying table 65 turns with respect to the lower traveling body 60. To do. Further, since the carrier is operated by the remote control device, no driver's seat is provided.

Therefore, the table 65 for carrying from the ground is used.
The height to the upper surface of the vehicle, that is, the total vehicle height H2, is lower than that of a normal material transporter, and it can be effectively used in work sites with height restrictions such as building construction and underground construction sites.

[0006]

However, the following problems have been pointed out in the above configuration. (1) In order to keep the total vehicle height H2 as low as possible, it is necessary to lower the upper surfaces of the engine room 63, the tank cover 64, and the like. Accordingly, the minimum ground clearance h2 shown in FIGS. 14 and 15 must be lowered. In this case, when traveling on a soft ground, the engine room 63 and the tank cover 6 are required.
The bottom surface of No. 4 is easily grounded, which may hinder traveling. Therefore, the heights of the upper surfaces of the engine room 63 and the tank cover 64 are restricted, and the height H2 to the upper surface of the carrying table 65 arranged above the engine room 63 cannot be lowered too much.

(2) Since there is little space below the transportation table and in front of the traveling frame 61, if an attachment such as a blade for earth pushing is mounted, the entire vehicle height H2
In addition, a large modification of the traveling frame 61 is required for mounting. (3) Since the transport table 65 is disposed above the engine room 63 and the tank cover 64, the maintainability is not so good and improvement is desired.

The present invention has been made by paying attention to the above-mentioned problems, and it is possible to make the whole vehicle height low and the minimum ground clearance high, and even if an attachment such as a blade for pushing earth or a lifting device is attached to the whole vehicle. It is an object of the present invention to provide a low vehicle height carrier which can be easily mounted without affecting the height and has good maintainability of the engine and tanks.

[0009]

In order to achieve the above object, a low vehicle height transporter according to the present invention is provided with right and left crawler tracks 3,3.
And a traveling frame 2 that connects the left and right crawler belts 3 and 3 at approximately the center of the left and right crawler belts 3 and 3, and a crank-type main frame 5 that fits within the width of the left and right crawler belts 3 and 3. Also, the high side of the crank type main frame 5 is attached to the substantially central portion of the traveling frame 2, and the engine 1 is attached to the upper surface of the other lower side of the crank type main frame 5.
1, a fuel tank 15, hydraulic equipments 12, 14 and the like are provided, and a bolt hole for attaching either a fixed transport table 25 or an attachment is provided on the upper surface of the main frame 5 on the high side.

In the low vehicle height transporter, it is desirable that the fixed transport table 25 or the attachment transport table 21 is arranged so as not to overlap the engine 11 in the vertical direction.

In the low vehicle height transport machine, a fixed transport table 25 or a rotatable transport table 34 may be provided on the upper surface of the crank type main frame 5 on the high side.

In the low vehicle height transporter, a lift device 35 that can be raised and lowered may be provided on the upper surface of the crank type main frame 5 on the high side.

In the low vehicle height transporter, the crawler belts 3, 3 of the traveling frame 2 are arranged in the longitudinal direction on the side opposite to the lower side of the crank type main frame 5 and within the width of the left and right crawler belts 3, 3. The arm 41 of the blade 40 for up-and-down earth, the plate elevating cylinder 42, and the like may be provided.

In the low vehicle height carrier, a detachable fork claw 50 may be attached to the earth pressing blade 40.

[0015]

The main frame is of a crank type, one high side of the main frame is attached to the upper surface of the lower traveling body at substantially the center, and the other lower side of the main frame has an engine and a fuel tank on the upper side. And hydraulic equipment, etc. shall be installed together in one place. Also, a fixed transportation table or the like can be attached to the upper surface of the main frame on the high side. As a result, an empty space can be secured on one end side in the front-rear direction of the traveling frame, and it becomes easy to mount an attachment such as a blade for earth pressing without major modification of the traveling frame.

Further, the engine can be arranged so that the carrying table and the engine do not overlap each other in the vertical direction. As a result, the minimum ground clearance, which is easily affected by the height of the bottom surface of the engine, can be increased to a predetermined value or higher. Moreover, the height to the upper surface of the transport table, that is, the total vehicle height can be reduced without being affected by the minimum ground clearance. In addition, the maintainability of the engine can be improved.

A fixed transportation table or a rotatable transportation table is attached to the upper surface of the crank type main frame on the high side. Therefore, it is easy to provide a fixed transportation table, a turning table, or the like without making a large modification of the traveling frame and reducing the total vehicle height.

Since a lift device that can be lifted and lowered is attached to the upper surface of the crank type main frame on the high side, it is easy to provide an elevating table without a large modification of the traveling frame and with a reduced overall vehicle height. is there.

Further, since the arm of the blade for raising and lowering the blade and the cylinder for raising and lowering the blade are provided in the empty space below the carrying table on one end side in the front-rear direction of the traveling frame, the traveling frame is not remodeled. To
In addition, it is easy to provide a blade for pushing earth that can be raised and lowered by reducing the overall vehicle height.

Since the detachable fork claw is attached to the soil pressing blade, the fork claw can be similarly easily provided with a reduced overall vehicle height.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a low vehicle height carrier according to the present invention will be described below with reference to FIGS.

1, FIG. 2, FIG. 3 and FIG. 4 are a side view, a plan view, a front view and a plan configuration view showing the arrangement of each device, showing a low vehicle height carrier of the first embodiment, respectively. The crawler belts 3 are attached to the left and right of the traveling frame 2 of the lower traveling body 1. A radiator 10, an engine 11 and a hydraulic pump 12 are arranged laterally at the rear end of the lower side of the crank type main frame 5 attached to the traveling frame 2 so as to fit within the width of the crawler belts 3, 3. Has been done. The radiator 10, engine 11, and hydraulic pump 12 are covered by an engine hood 13.

On the lower side of the crank type main frame 5 and in front of the engine 11, a hydraulic oil tank 14, a fuel tank 15, a remote control controller 16 and a battery 1 are provided.
7 and the like are provided. These are covered by the tank cover 18. In this embodiment, the traveling frame 2
A fixed transport table 25 is attached to the front of the upper part of the table. That is, the fixed transport table 25 is the one on which the transport table 21 is mounted via the table base frame 20, and does not have functions such as turning and lifting. Since this transporter is operated by a remote control device like the conventional one, no cab is provided.

FIG. 5 is a side sectional view of the present transporter, and FIG. 6 is a plan view showing a portion where the main frame 5 is attached to the traveling frame 2, which will be described in detail below with reference to FIGS. 5 and 6.
A crank-shaped main frame 5, which is seen from the side, is attached to the upper portion 4 of the traveling frame 2 at the substantially central portion thereof. The main frame 5 is the left and right crank plates 6,
6, a left and right crank plates 6, 6, a connecting plate 7 for connecting the front portions of the crank plates 6, and an engine frame 8 fixed to the rear ends of the left and right crank plates 6, 6 on the lower side.

The connecting plate 7 of the main frame 5 has two
The bolts 9, 9 are fastened to the upper surface 4 of the traveling frame 2 and temporarily fixed. The lower surface plate 22 of the table base frame 20 is mounted on the connecting plate 7, and a cutout portion 23 is provided in a portion of the lower surface plate 22 aligned with the bolt 9. After the temporary fixing of the connecting plate 7, the table base frame 20 and the connecting plate 7 are fastened together and attached to the upper surface 4 of the traveling frame 2 by a plurality of bolts 24. Table base frame 2
A transport table 21 is attached to the upper part of 0.
At this time, when viewed from the side, the table base frame 20
The mounting center is shifted forward so that the mounting surface of the carrying table 21 is closer to the front than the lower plate 22.

As described above, the engine 11 is mounted sideways on the engine frame 8 at the rear end on the lower side of the main frame 5, and the fuel tank 15, the controller 16 and the battery 17 are mounted in front of it. The controller 16 controls remote control and the like.

As shown in FIG. 4, the center of the carrying table 21 is located forward by L from the center of the lower traveling body 1, and the carrying table 21, the engine 11, the hydraulic oil tank 14, the fuel tank 15 and The controller 16 and the like are arranged so as not to overlap in the vertical direction. Therefore, the height from the ground surface to the upper surface of the transport table 21, that is, the total vehicle height H1 is lower than the total vehicle height H2 of the conventional transporter. In addition, the distance from the ground surface shown in FIGS. 3 and 5 to the lower side of the crank plate 6 and the lower surface of the engine frame 8, that is, the minimum ground clearance h1, is determined by the above-mentioned transport table 21, the engine 11, and the hydraulic oil tank 14. It is possible to make room in the height direction by avoiding the vertical overlap with the above. Therefore, the minimum ground clearance h1 can be made higher than the minimum ground clearance h2 of the conventional carrier, and a sufficient height is secured so as not to hinder traveling in wetlands.

Further, since the transportation table 21 is not provided above the engine 11, the hydraulic oil tank 14, the controller 16 and the like, the maintainability from above is good. In addition, heavy objects such as the engine 11 are concentrated behind the crawler belt 3,
Since the transport table 21 is arranged in front of the center of the crawler belt 3, the balance in the front-rear direction becomes good when the transport material is loaded.

Next, a second embodiment will be described with reference to FIGS. 7 and 8. 7 and 8 are a side view and a plan view, respectively, showing a low vehicle height carrier of the second embodiment. The present embodiment is an example in which a rotatable transport table 34 is provided on the upper surface of the crank-shaped main frame 5 on the high side. That is, the table base frame 30 and the crank-type main frame 5 are fastened together and attached to the upper surface of the traveling frame 2 substantially in the center, as in the first embodiment. The main frame 5 is the same as that of the first embodiment. On the upper surface of the table base frame 30, a carrying table 21 is rotatably mounted via a turning circle 31. Inside the turning circle 31, internal teeth (not shown) are provided. A swivel motor 33 is mounted on the table base frame 30, and a pinion (not shown) that meshes with the internal teeth of the swivel circle 31 is attached to the rotary shaft of the swivel motor 33. By the turning of the turning motor 33, the turning circle 31 is driven and turned through the pinion and the internal teeth.

The center of the turning circle 31 is closer to the front by L than the center of the lower traveling body 1, and the locus of the maximum turning radius R of the carrying table 21 during turning is the engine hood 13.
It does not interfere with etc. Also at this time, as in the first embodiment, the carrying table 21 and the engine 1
1, the hydraulic oil tank 14, the fuel tank 15, the controller 16 and the like are arranged so as not to overlap in the vertical direction. Therefore, the total vehicle height H1 is the same as the conventional total vehicle height H2.
It can be made lower, and the minimum ground clearance h1 is the conventional minimum ground clearance h2.
Can be higher.

Next, a third embodiment will be described. FIG. 9 is a side view showing the third embodiment. A pantograph-type lift device 3 as shown in the figure is provided on the upper surface 4 of the traveling frame 2 in the approximate center.
A carrying table 21 is attached via 5. Even in this case, as in the first embodiment, the carrying table 21 is used.
And engine 11, hydraulic oil tank 14, fuel tank 15
Also, they are arranged so as not to vertically overlap with the controller 16 and the like. Therefore, similarly, the total vehicle height H1 can be made lower than the conventional total vehicle height H2, and the minimum ground clearance h1 can be made higher than the conventional minimum ground clearance h2. The lift device 35
When the table 21 for transportation is operated, the table 21 shown in FIG.
It rises like the dotted line.

Next, a fourth embodiment will be described. 10 and 11 are a side view and a plan view showing the fourth embodiment, respectively. In front of the traveling frame 2, between the left and right crawler belts 3, 3, an arm 41 is provided so as to be vertically movable.
The pressing soil blade 40 is fixed to the tip of the arm 41. A blade lifting cylinder 42 is rotatably attached between the traveling frame 2 and the pressing blade 40, and the pressing blade 40 is expanded and contracted by expanding and contracting the blade lifting cylinder 42 shown in FIG. You can move up and down as shown by the dotted line. In this way, in front of the traveling frame 2,
Since there is an empty space below the carrying table 21, the soil pressing blade 40 can be easily mounted.

Next, a fifth embodiment will be described with reference to FIGS. 12 and 13. FIG. 12 is a side view of a low vehicle height carrier showing the fifth embodiment. The pressing soil blade 40 is provided in front of the traveling frame 2 as in the fourth embodiment.
A fork claw 50 for carrying a transportation material or the like is detachably attached to the front of the pressing earth blade 40, and the fork claw 5 is extended by expanding and contracting the blade lifting cylinder 42.
Move 0 up and down like the chain double-dashed line.

FIG. 13 is a view showing an example of a method of engaging the fork claw 50 and the earth pressing blade 40. That is, the plate 51 is fixed to the rear surface of the fork claw 50, and the pressing blade 40 is attached to the lower end of the plate 51.
A hook portion 52 that engages with the blade edge 43 at the lower end of the. A bracket 54 having a pin hole 53 is provided on the upper portion of the plate 51, and a bracket 44 having a pin hole 45 is provided on the upper end of the pressing earth blade 40. Then, the pin hole 53 is adapted to engage with the pin hole 45.

When the fork pawl 50 is attached to the soil press blade 40, the hook portion 52 of the fork pawl 50 is engaged with the blade edge 43 of the soil press blade 40. Next, the pin hole 53 of the bracket 54 of the fork claw 50 is aligned with the pin hole 45 of the bracket 44 of the soil pressing blade 40,
The fork claws 50 are attached to the pressing soil blade 40 by connecting with a pin (not shown).

[0036]

The main frame is of a crank type, one high side of the main frame is attached to the upper surface of the lower traveling body at substantially the center thereof, and the engine is attached to the upper surface of the other lower side of the main frame. The hydraulic equipment, the controller, etc. were placed together in one place. Also, a transportation table and the like can be attached to the upper surface of the main frame on the high side.
As a result, an empty space can be secured at one end side in the front-rear direction of the traveling frame and below the transport table,
It becomes easy to install attachments such as blades for earth pressing without major modification of the traveling frame.

Further, the carrying table can be arranged so that the carrying table and the engine etc. do not overlap in the vertical direction. As a result, the minimum ground clearance can be increased to a predetermined value or higher, and the total vehicle height up to the upper surface of the transport table can be reduced without being affected by the minimum ground clearance. Furthermore, the maintainability of the engine, hydraulic equipment, etc. can be improved.

A fixed transportation table, a rotatable transportation table, a vertically movable transportation table, etc. can be attached to the upper surface of the crank type main frame on the high side. Therefore, it is easy to provide various attachments such as a fixed transportation table, a turning table, and a lifting table without lowering the traveling frame and reducing the total height of the vehicle.

Further, since a movable blade for raising and lowering and a blade lifting cylinder can be provided in the empty space at the front of the traveling frame and below the carrying table, the traveling frame is not remodeled. In addition, it is easy to provide a pressing soil blade that can be raised and lowered by reducing the overall vehicle height. Further, since the detachable fork claw can be attached to the soil pressing blade, the fork claw can be similarly easily provided with a reduced overall vehicle height.

[Brief description of drawings]

FIG. 1 is a side view of a low vehicle height carrier according to a first embodiment of the present invention.

FIG. 2 is a plan view of a low vehicle height carrier according to the first embodiment of the present invention.

FIG. 3 is a front view of the low vehicle height transporter according to the first embodiment of the present invention.

FIG. 4 is a plan configuration diagram showing an arrangement of respective devices of the low vehicle height carrier of the first embodiment.

FIG. 5 is a side sectional view showing the main frame structure of the first embodiment.

FIG. 6 is a plan view showing a joint structure of the traveling frame, the main frame and the table base frame of the first embodiment.

FIG. 7 is a side view of the low vehicle height carrier according to the second embodiment of the present invention.

FIG. 8 is a plan view of a low vehicle height carrier according to a second embodiment of the present invention.

FIG. 9 is a side view of a low vehicle height carrier according to a third embodiment of the present invention.

FIG. 10 is a side view of a low vehicle height carrier according to a fourth embodiment of the present invention.

FIG. 11 is a plan view of a low vehicle height carrier according to a fourth embodiment of the present invention.

FIG. 12 is a side view of a low vehicle height carrier according to a fifth embodiment of the present invention.

FIG. 13 is an explanatory view of the engagement between the fork claw and the soil pressing blade of the fifth embodiment.

FIG. 14 is a side view of a conventional low vehicle height carrier.

FIG. 15 is a front view of a conventional low vehicle height carrier.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lower traveling body, 2 ... Running frame, 3 ... Crawler belt, 4 ... Top part of running frame, 5 ... Main frame, 6 ... Crank plate, 7 ... Connecting plate, 8 ... Engine frame, 9 ... Bolt, 10 ... Radiator , 11 ... engine,
12 ... Hydraulic pump, 13 ... Engine hood, 14 ... Hydraulic oil tank, 15 ... Fuel tank, 16 ... Controller, 1
7 ... Battery, 18 ... Tank cover, 20 ... Table base frame, 21 ... Transport table, 22 ... Bottom plate, 23 ... Notch part, 24 ... Bolt, 25 ... Fixed transport table, 30 ... Table base frame, 31
... Swivel circle, 33 ... Swivel motor, 34 ... Swivelable transport table, 35 ... Lift device, 40 ... Soil blade, 41 ... Arm, 42 ... Blade lifting cylinder, 4
3 ... Blade edge, 44 ... Bracket, 45 ... Pin hole, 50 ... Fork claw, 51 ... Plate, 52 ... Hook part, 53 ...
Pin hole, 54 ... Bracket, 60 ... Lower traveling body, 61 ...
Running frame, 62 ... Crawler track, 63 ... Engine room, 6
4 ... Tank cover, 65 ... Transport table, 66 ... Turning hydraulic motor, 67 ... Turning pinion.

Claims (6)

[Claims] 1. The left and right crawler belts (3, 3) and the left and right crawler belts at the approximate center in the longitudinal direction of the left and right crawler belts (3, 3).
It is equipped with a running frame (2) that connects (3, 3) and a crank type main frame (5) that fits within the width of the left and right crawler belts (3, 3), and this crank type main frame (5 ) Is attached to approximately the center of the traveling frame (2), and the engine (11), fuel tank (15), and hydraulic equipment are attached to the upper surface of the other lower side of the crank-type main frame (5). (12,14) etc. are arranged,
A low vehicle height transport machine characterized in that a bolt hole for mounting either a fixed transport table (25) or an attachment is provided on the upper surface of the main frame (5) on the high side. 2. The fixed transport table (25) or the attachment transport table (21) is arranged so as not to vertically overlap the engine (11). Low vehicle height carrier. 3. A fixed carrying table (25) or a rotatable carrying table (34) is provided on the upper surface of the crank type main frame (5) on the high side. The low vehicle height carrier according to 1 or 2. 4. The low vehicle according to claim 1, 2 or 3, wherein the crank type main frame (5) is provided with a lift device (35) which can be lifted and lowered on the upper surface on the high side. High carrier. 5. The crawler belts (3, 3) of the traveling frame (2), the width of the crawler belts (3, 3) on the side opposite to the lower side of the crank type main frame (5) in the longitudinal direction. 5. The low vehicle height transportation according to claim 1, 2, 3 or 4, wherein an arm (41) of a blade (40) for freely moving up and down, a plate lifting cylinder (42), etc. are provided therein. Machine. 6. The detachable fork claw (50) is attached to the earth pressing blade (40).
Low vehicle height carrier described in.