JPS6326979Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to frame structures for various types of dump trucks.

Conventionally, in configuring the above-mentioned frame structure, as shown in FIG.
However, in order to meet the needs of users, when preparing multiple vehicle models with different lengths of the dump bed 6, the dump bed 6 may be installed directly.
It is necessary to manufacture a plurality of types of frame units U according to the front and rear lengths of the frame, which poses problems in terms of work efficiency and cost in frame manufacture.

In view of the above-mentioned conventional circumstances, the purpose of this invention is to improve the work efficiency and cost of frame production by making an extremely simple and rational improvement of the frame structure to manufacture multiple vehicle models with different front and rear lengths of dump beds. The point is to make it advantageous in terms of aspects, etc.

The characteristic structure of the present invention is that a pair of left and right truck frames are arranged in parallel along the front and back direction, and a main frame of the frame unit to which the engine and the passenger driving section are attached, as well as supporting columns arranged in the front and rear respectively. , and the frame provided with the pivot portion of the dump bed are integrated and fixedly installed across the pillars, and the functions and effects thereof are as follows.

In other words, the frame with the pivot portion of the dump bed and the main frame of the frame unit are integrated and fixed to the pillars between the pillars arranged in front and rear of the pair of left and right truck frames. For example, the front-to-back length of the frame or main frame can be adjusted to accommodate the manufacture of multiple vehicle models with different lengths of dump beds, boarding/driving sections, or driving sections. Different types are manufactured individually depending on the type, and then, depending on the vehicle type, a frame equipped with a pivot part of the dump bed and a main frame of the frame unit are integrated as the support for the truck frame. The desired type of dump truck can be manufactured simply by assembling the dump truck into the vehicle.
Manufacturing can be simplified, resulting in extremely high overall work efficiency, low costs, and easy inventory management of parts.

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

As shown in FIG. 1, a self-propelled vehicle body has a crawler type traveling device, and a driving part 7 and a driving part 8 arranged in parallel on the left and right at the rear. The loaded platform 6 is attached to a cylinder 9 so as to be able to swing up and down about the axis on the front end side, thereby constructing a transport vehicle capable of dumping the platform.

In configuring the self-propelled vehicle body, FIGS.
As shown in the figure, a pair of left and right track frames 4
A frame 5a that connects their front ends to each other and a frame 5b that connects their rear ends to each other are constructed and connected to each of the connecting frames 5a and 4b, and a pair of left and right square pipes are installed on each of the connecting frames 5a and 5b. A pair of left and right square pipe main frames 1a, 1b are installed in the longitudinal direction of the vehicle body.
The left and right main frames 1a and 1b are arranged on the outer sides of the left and right pillars 2a and 2b of the vehicle body, and the left main frame 1a is placed between it and the front and rear pillars 2a and 2a located on the left side of the vehicle body. The upper ends of the front and rear struts 2a, 2a are connected by square pipes 10a in the longitudinal direction of the vehicle body, which are arranged at The square pipe 10a and the main frame 1a
are connected in an overlapping state, and the right main frame 1b is arranged between it and the above-mentioned pillars 2b, 2b located on the right side of the vehicle body, and the main frame 1b is connected to the vehicle body inner lateral side surface and both the front and rear pillars 2b. ，
The front and rear struts 2b, 2
The square pipe 10b and the main frame 1b are connected to each other in an overlapping state at their upper ends, and a pair of left and right square pipe body front and rear subframes 11a, 11b are connected to the left and right main frame 1.
The subframes 11a, 11b are distributed and arranged on the left and right sides of the rear end side of a, 1b, and the subframes 11a, 11b
The one on the left side 11a is connected to three connecting frames 12a in the lateral direction of the vehicle body, which are arranged in parallel in the longitudinal direction.
Three connecting frames 12 are connected to the left main frame 1a by 13a and 14a, and the right sub-frame 11b is arranged in parallel in the front-rear direction.
b, 13b, 14b to the right main frame 1
b, and a traveling device, a driving unit 7, a driving unit 8, and a loading platform 6 are attached as follows.

That is, both main frames 1a, 1b, both subframes 11a, 11b, and each connected frame 12a, 12b, 13a, 13b, 14a, 1
A driving section 7 and a driving section 8 are mounted on a frame unit U constituted by 4b.

As for the traveling device, the left and right crawler belts 3a and 3b are respectively arranged so that the inside part of the vehicle body on the upper side of the winding is between the main frame 1a or 1b, the connecting square pipe 10a or 10b and the connecting frames 5a and 5b. The crawler driving wheel 18, the crawler tensioning wheel 19, and the crawler ground side provided on the truck frame 4a or 4b are arranged so as to fit between the truck frames 5a and 5b. It is wound around each of the guide wheel body 20 and the guide wheel body 21 for the upper side of the crawler.

Regarding the loading platform 6, a pair of left and right loading platform longitudinal frames 16a, 16b attached to the back side of the loading platform bottom plate 6a, located inside the vehicle body from the lateral outer edge of the loading platform 6, and a cushion material 17 are used. The loading platform 6 in the running state is connected to the left and right square pipes 10.
a, 10b, and the lower front end of the loading platform 6 is supported by the left and right square pipes 10.
A, 10b are pivotally connected to the front ends thereof by brackets 15 attached thereto.

In other words, the bracket 15 for connecting the loading platform 6 is attached to the square pipes 10a and 10b, which are frame members different from the constituent members of the frame unit U for mounting the driving part 7 and the driving part 8, as described above. Therefore, it is possible to improve the traveling vehicle body due to a change in the longitudinal length of the loading platform 6 by simply improving the square pipes 10a and 10b, and the frame unit U portion can be shared regardless of the longitudinal length of the loading platform 6. It is structured as follows.

Further, frames 22, 23, 24 in the figure are for connecting the middle portions or front and rear ends of the left and right connecting square pipes 10a, 10b, and the bracket 25 is for connecting the cylinders 9. It is.

In addition, in carrying out the present invention, the driving part 7,
The specific structure of the frame unit U on which the driving unit 8 is mounted can be changed in various ways, and the frame unit U of the frame members 10a and 10b equipped with the pivot connection part 15 to the loading platform 6 can be changed. It is also possible to make various improvements to the connecting structure.

The present invention is intended for various types of dump trucks such as front dump type and rear dump type.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the frame structure of a dump truck according to the present invention and a conventional example, in which Fig. 1 is an overall side view, Fig. 2 is a plan view showing the frame structure, and Fig. 3 is a - line in Fig. 2. The sectional view, FIG. 4, is a diagram corresponding to FIG. 2 showing a conventional structure. 1a, 1b...main frame, 2a, 2b...
...Struts, 4a, 4b...Truck frame, 6...
... Dump loading platform, 7... Engine, 8... Boarding and driving section, 10a, 10b... Frame, U... Frame unit.

Claims (1)

[Scope of utility model registration request] The main frame unit U has struts 2a and 2b arranged in the front and rear, respectively, erected on a pair of left and right truck frames 4a and 4b arranged in parallel along the front and rear direction, and also has an engine 7 and a passenger driving section 8 attached thereto. Frames 1a, 1b and dump platform 6
A frame structure of a dump truck, in which frames 10a and 10b each having a pivot portion 15 are integrated and fixedly installed between the pillars 2a and 2b.