JPS633296Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a driving wheel of a transport vehicle.

Conventionally, the drive axle of a transport vehicle was attached to the end of an axle case that was connected horizontally to the differential mechanism, so the height of the differential mechanism from the ground was low. When driving, there was a problem in that the lower surface of the differential mechanism easily touched the ridges. Therefore, in order to eliminate the above-mentioned drawbacks, it is possible to increase the height of the differential mechanism from the ground by installing the axle case diagonally, but it is also possible to support the drive wheels from the differential mechanism through the axle case that is connected to the differential mechanism. However, there was a problem in that the structure could not absorb the vibrations of the car body well.

The object of the present invention is to increase the height of the differential mechanism from the ground while being able to absorb vehicle body vibrations well.

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, it is provided with a pair of left and right front wheels 1a, 1b and rear wheels 2a, 2b, and a driving cabin 3 is provided in the front part, and an engine 4 and a differential for the rear wheels are provided. It is directly connected to the drive mechanism 5 and interlocked with the front wheel differential mechanism 6 through a rotary shaft 7, and includes a transmission connection/disconnection mechanism (not shown) for the front wheels 1a and 1b and a power take-off shaft for an attachment (not shown) that protrudes front and rear. A rear engine four-wheel drive type transport vehicle is constructed by attaching a cargo platform 9 located behind the driving cabin 3 to a vehicle body equipped with a driving unit at the rear including a transmission transmission 8 (external) and the like. It has been done.

The front wheels 1a, 1b are attached based on the structure shown in FIGS. 2 to 4.

That is, the rising portions of a pair of left and right bent pipes are connected to each other by a single bent pipe, and the shapes of both ends 10a, 10a when viewed in the vertical direction of the vehicle body are bifurcated, and the shape of the entire vehicle body as viewed in the longitudinal direction is changed. The wheel mounting member 10 is formed into a bent shape in which both end portions 10a, 10a are horizontal or almost horizontal, and the intermediate portion 10b is located at a higher level than both end portions 10a, 10a.
The rising portions 10c, 10c connected to both ends of the 0b are arranged so as to fit between the pair of left and right vehicle body frames 11a, 11b, and both end portions 10a, 10
Both vehicle body frames 11a, 11b are connected by leaf springs 13 connected to each a by U bolts 12.
The left wheel 1a or the right wheel 1b is connected to both ends 10a, 10a of the wheel mounting member 10 so as to be freely raised and lowered, and is connected to the left wheel 1a or the right wheel 1b via a kingpin connector 14 and an axle support 15 with a kingpin connected thereto. is attached to be able to swing freely around the king pin 16. Then, the differential mechanism 6 is inserted between the two upright portions 10c, 10c when viewed in the longitudinal direction of the vehicle body, and the two vehicle body frames 11
A, 11b are connected by bolts to a horizontal frame 17 which is constructed and connected, and on each of the left and right sides of the differential mechanism 6, a pair of front and rear end portions 10a, 10a and rising portions 10c, 1 are provided, when viewed in the vertical direction of the vehicle body.
0c, and the end portion 10a and the rising portion 10c when viewed in the longitudinal direction of the vehicle body.
By means of a rotating shaft 19 which is arranged so as to overlap with each other, passes through the kingpin connector 14, and is further provided with a universal joint 18 on both ends.
An output shaft (not shown) of the differential mechanism 6 and an axle (not shown) are interlocked and connected.

Also, when installing the rear wheels 2a and 2b, the second
As shown in the figure and FIG.
A or 2b attached to the bent pipe wheel mounting member 21 is attached to the vehicle body frame 11 by a leaf spring 31 connected to both ends thereof with U bolts 22.
a, 11b so as to be movable up and down, and on each of the left and right sides of the differential mechanism 5, the output shaft (not shown) and the axle (not shown) of the differential mechanism 5 are connected to each other, and a universal joint 24 is provided at both ends. They are interlocked and connected by a rotary shaft 25 which is arranged in the same direction as shown in FIG.

Rubber stopper 26 shown in FIGS. 3 and 5
In this case, the wheel mounting member 10 or 21 is attached to the vehicle body frame 1.
This is to prevent collision with 1a and 11b. Further, 27 shown in FIG. 3 is a shock absorber. 28 shown in FIG. 2 is the engine 4
29 is an engine cooling radiator, and 30 is an engine muffler.

In summary, the structure of the wheel attachment part of a transport vehicle according to the present invention has a member 10 for attaching wheels 1a and 1b at both ends, respectively, with both ends 10a and 10a being horizontal or almost horizontal, and the middle part being horizontal or almost horizontal. The portion 10b is located at a higher level than the both end portions 10a, 10a, and the intermediate portion 10b and the both end portions 10a, 10a are the rising portion 10c,
The wheel mounting member 10 is connected to a pair of left and right vehicle body frames 1 through a bent shape.
The intermediate portion 10b and the rising portions 10c connected to both ends of the intermediate portion 10b are arranged between the intermediate portion 1a and 11b, and are connected to the vehicle body frames 11a and 11b via shock absorbers 27, 27, so that the left and right wheels 1a and 1b Differential mechanism 6 for
is placed in the space below the intermediate portion 10b located at a high level between the rising portions 10c, and further,
The rising portion 10c and both end portions 10a, 10a
is formed into a bifurcated shape that is open on the outer side of the vehicle body and is curved in a U-shape at the rising upper end, and has a rotating shaft 19 that interlocks and connects the differential mechanism 6 and the wheels 1a, 1b. , is characterized in that it is arranged in such a manner that it overlaps when viewed in the longitudinal direction of the vehicle body through the forked portions of the rising portion 10c and both end portions 10a.

That is, since a wheel mounting member separate from the differential mechanism is provided and connected to the pair of left and right vehicle body frames via the shock absorber, vibrations of the vehicle body can be absorbed via the shock absorber. Since the intermediate portion of the wheel mounting member is curved upward when viewed in the longitudinal direction of the vehicle body, and the differential mechanism is disposed within the curved portion, the height of the differential mechanism from the ground can be increased. The U-shaped bifurcated portions at both ends of the wheel mounting member protect the rotating shaft that interlocks and connects the differential mechanism and the wheels, in the same way as the axle case, to avoid contact with other objects.

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 show an embodiment of the structure of the wheel mounting part of a transport vehicle according to the present invention, in which FIG. 1 is a side view of the transport vehicle, FIG. 2 is a plan view of the traveling device, and FIG. 3 is a front view of the front wheel mounting part. FIG. 4 is a cross-sectional view taken along the - arrow in FIG. 3, and FIG. 5 is a rear view of the rear wheel mounting portion. 1a, 1b...wheels, 6...differential mechanism, 10...
...Wheel mounting member, 10a...End part, 10b...Middle part, 10c...Rising part, 11a, 11b...
Vehicle frame, 19...rotating shaft, 27...shock absorber.

Claims (1)

[Scope of utility model registration request] When viewed in the longitudinal direction of the vehicle, there are wheels 1 on each end side.
The member 10 to which a and 1b are attached is attached to both ends 10 thereof.
a, 10a are each horizontal or approximately horizontal, intermediate portion 10b is located at a higher level than both ends 10a, 10a, and intermediate portion 10b and both ends 10a, 10a are connected via rising portions 10c, 10c. The wheel mounting member 10 is connected to a pair of left and right vehicle body frames 11a, 1.
The intermediate portion 10b and the rising portions 10c connected to both ends thereof are arranged between the intermediate portion 10b and the rising portions 10c connected to both ends thereof, and are connected to the vehicle body frames 11a, 11b via shock absorbers 27, 27, so as to provide a difference between the left and right wheels 1a, 1b. The moving mechanism 6 is connected to the intermediate portion 1 located at a high level between the rising portions 10c.
furthermore, the rising portion 10c and both end portions 10a, 10a are formed into a bifurcated shape that is open on the outer side of the vehicle body and is curved in a U-shape at the upper end of the rising portion; A rotating shaft 19 that interlocks and connects the differential mechanism 6 and the wheels 1a and 1b is arranged so as to wrap around the rising portion 10c and the bifurcated portions of both ends 10a when viewed in the longitudinal direction of the vehicle body. The structure of the wheel attachment part of a transport vehicle.