JP2813068B2 - Bogie device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie device for a railway vehicle.

[0002]

2. Description of the Related Art FIG. 3 shows, for example, JREA 1990 Vol 33, No.
3 shows a conventional bogie device for a railway vehicle shown on page 45 of FIG. 3, wherein 1 is a wheel, 2 is a bearing, 3 is a bogie frame,
Reference numeral 4 denotes a propulsion connection mechanism with the vehicle. FIG. 4 is a view of FIG. 3 viewed from below, and 5 indicates an axle. Although the bogie does not include a drive motor, this bogie is the most common bogie bogie as an example showing the structure of the bogie.

Next, the operation will be described. Propelled by the rotational force of a drive motor attached to the bogie device, the vehicle is propelled or braked via a connection mechanism with the vehicle. In other words, propulsion is performed by rotating the motor in that direction, and braking is performed while the vehicle is running by using the motor as a generator to electrically generate heat from the generated energy to a resistor, or by rotating the rotating axle with hydraulic pressure or the like. By doing
The braking force is obtained, and the vehicle is decelerated with this energy.

[0004]

In the conventional bogie device,
When accelerating the vehicle due to its structure, the 2
A phenomenon occurs in which the leading shaft of the wheel of the shaft rises due to the reaction force from the wheel tread surface for propulsion. If high acceleration or high deceleration is performed and the running speed is controlled to reduce the running time in the running section, the raised shaft will spin or glide between the rail and the wheels, reducing the propulsion and braking forces. There was a problem of drastic reduction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a bogie that realizes a high-speed electric vehicle by preventing idling or gliding on wheel treads even at high acceleration and high deceleration. The aim is to obtain a device.

[0006]

A bogie device according to the present invention is provided with a drive unit for moving the position of a propulsion connection mechanism mounted on the bogie forward and backward during acceleration and deceleration, respectively. is there.

[0007]

The bogie device according to the present invention is provided with a propulsion connection mechanism that moves back and forth on the underframe with respect to the traveling direction. In the case of acceleration, the bogie device is moved forward from the center of the bogie, and in the case of braking, it is moved rearward. Thereby, the load applied to each axis of the bogie device is changed, so that it is difficult to spin the wheels or slide on the rail surface.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In FIG. 1, 1 is a wheel, 2 is a bearing, 3 is a bogie frame,
Reference numeral 4 denotes a propulsion connection mechanism mounted on the bogie frame. Next, FIG. 2 shows the details of the propulsion connection mechanism 4, 3 is a part of a bogie frame, 41 is a shaft portion that transmits propulsion force by receiving a vehicle load,
42 is a spring that receives a vehicle load, 43 is a bearing that moves in the front-rear direction, 44a and 44b are hydraulic cylinders, 45
Reference numerals a and 45b denote pressing plates for transmitting the force of the hydraulic cylinder to the shaft 41, and reference numerals 46a and 46b denote hydraulic supply units.

Next, the operation will be described. When the vehicle is accelerated for traveling, a hydraulic pressure is applied to the hydraulic pressure supply unit 46b to move the shaft 41 forward to shift the vehicle load from the center of the bogie device in the traveling direction. In this case, the acceleration of the vehicle is determined by an operation called a notch handling that normally commands powering, and the hydraulic pressure is supplied to the hydraulic pressure supply unit 46b. When deceleration by the brake is performed, hydraulic pressure is applied to the other hydraulic pressure supply portion 46a to move the shaft portion 41 rearward, thereby transferring the vehicle load to the rear portion of the bogie.

Next, the relationship between the propulsion connection mechanism 4 and the axle load will be described.
Will be described. The body weight is supported by the bogie
It is distributed to two axes in the bogie. FIG. 5 acts on the bogie frame 3
47 is the force, and 47 is the body mass F supported by one truck
B, 48a are the body weight sharing forces Fb ₁ , 48 on the bogie front shaft.
b is the body mass sharing force Fb ₂ in the axial post within the truck. On a trolley
These FB, Fb ₁ , and Fb ₂ that act are both forces and moments.
Since it is necessary to balance, Fb ₁ = (l ₃ /
l ₁ ) FB, Fb ₂ = (l ₂ / l ₁ ) FB Follow
To move the shaft 41, whose body weight acts on the bogie, back and forth.
Change l ₂ and l ₃ in FIG.
And the sharing forces Fb ₁ , Fb ₂ of each shaft supporting the vehicle mass
It can be changed.

In the above embodiment, the shaft receiving the vehicle load is driven by the hydraulic mechanism. However, this mechanism may use a mechanical method or an electromagnetic method.

[0012]

As described above, according to the present invention, by moving the propulsion connection mechanism attached to the bogie frame back and forth,
The load applied to the two axes works to prevent the wheels from sliding,
This has the effect of realizing high-performance running.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of the present invention.

FIG. 2 is a configuration diagram showing details of a connection mechanism.

FIG. 3 is a side view showing a conventional hogie bogie device.

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is an explanatory diagram showing a force acting on a bogie frame.

[Explanation of symbols]

1 wheel, 2 bearings, 3 bogie frame, 4 propulsion connection mechanism, 5 axles .

Claims (1)

(57) [Claims] 1. A front and rear axles with wheels at each end, the platform moves the axle bogie frame which is supported through the bearings, respectively, back and forth parallel to the advance direction of the vehicle is installed in the bogie frame
A bogie device comprising a propulsion connection mechanism for changing the axle weight distribution of the front and rear axles in the vehicle frame, and displacing the propulsion connection mechanism forward when the vehicle is accelerating and backward when the vehicle is decelerating.