JPS586763Y2 - Brake device for ultra-high speed vehicles - Google Patents

Description

[Detailed description of the invention] This invention relates to a brake device for an ultra-high-speed vehicle, particularly to the attachment of its brake shoes, and has a guide rail for running when floating, and the brake force is applied by sandwiching the guide rail. It is suitable for the brake equipment to be obtained.

In conventional railway vehicles, the brake devices are often installed on the bogie, and since the wheels run, the braking force is obtained by pressing the brake shoes directly against the wheels, but in this case, the brake shoes are mounted in a cylindrical shape. A bushing and pin combination is used.

Therefore, while vertical rotation is free, horizontal rotation is only possible by the gap between the pin and bush.
This was sufficient for conventional railway vehicles because the lateral movement of the wheels was small.

However, in floating vehicles used at ultra-high speeds, the vehicle pitches, rolls, and yaws significantly due to the unbalance of the floating blades and the susceptibility to wind pressure when traveling while floating, and conventional cylindrical bushings If the brake is installed, these movements cannot be tolerated unless the clearance is extremely increased, which has the disadvantage of causing uneven contact and not being able to obtain sufficient braking force. This is undesirable as it causes an increase in impact load and impact noise.

The purpose of the present invention is to prevent uneven contact of the brake shoes even when pitching, rolling, yawing, etc., as described above, are large.

The main points of this invention are as follows.

(1) By mounting the brake shoe using a combination of a spherical bearing and a pin, the brake shoe can move in all directions, including up, down, left and right.

(2) Due to the use of spherical bearings, the brake shoe can move freely in all directions, but a suitable stopper was installed to prevent it from moving more than necessary.

FIG. 1 shows the installation of a brake shoe used in a conventional railway vehicle.

The brake shoe 1 is connected to the brake cylinder 4 via a cylindrical bush 2.
Since it is attached to the pin 3 connected to the bushing 2, it can freely rotate in the direction A in the figure, but it has the disadvantage that it can only rotate in the direction B by the amount of the gap between the bushing 2 and the pin 3.

5 is the brake shoe suspension.

2 to 4 show an embodiment of the brake device of the present invention that solves these drawbacks.

A brake shoe 1 installed opposite to a guide rail 11 is attached to a pin 3 via a spherical bearing 2, and the pin 3 is connected to a brake cylinder 4 that generates a brake pressing force and a brake anchor 5 that receives frictional force during braking. Supported by

The brake cylinder 4 and the brake anchor 5 are supported by pins 14 and 15, respectively, on brackets 6.7, which are each attached to the frame 8.

Note that the frame 8 is attached to a vehicle body (not shown).

In order to prevent the brake shoe 1 from tilting more than necessary, the brake cylinder 4 is provided with a stopper 10, and this stopper 10 is selected so as to allow a maximum movement determined from the specifications of the vehicle. .

Now, in Figure 4, when the vehicle rolls α0 in the A direction due to the unbalance of the floating blade and the influence of wind pressure (this figure shows the state at the maximum allowable angle, so the brake shoe 1 is in contact with the stopper 10) Considering the case where the brakes are applied,
Since the brake shoe 1 is mounted with a spherical bearing 2, it can be tilted freely by α0 relative to the vehicle. Therefore, the brake shoe 1 contacts the guide rail 11 at right angles, resulting in uniform contact with no uneven contact, and a predetermined braking force can be obtained.

Further, since the brake shoe 1 is not bent by the vertical component force that occurs due to the α0 inclination, the member can be made smaller.

The effects obtained by the present invention are as follows.

(1) It is possible to prevent uneven contact of the brake shoes and ensure a predetermined braking force.

(2) Since the brake shoes do not receive bending loads, the members can be made smaller.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing the installation state of brake shoes used in conventional railway vehicles, Figure 2 is a plan view of the brake device of the present invention applied to an ultra-high-speed floating vehicle, and Figure 3 is a diagram showing how the brake shoes are installed in a conventional railway vehicle. 2 is a vertical sectional view, and FIG. 4 is a vertical sectional view corresponding to FIG. 3 when the brake is activated. 1...brake shoe, 2...spherical bearing, 3
...Pin, 4...Brake cylinder,
5... Brake anchor 11... Guide rail.

Claims (1)

[Scope of utility model registration request] The brake shoes installed oppositely on both sides of the guide rail are attached to pins supported at one end of the brake cylinder and brake anchor, and the other ends of the brake cylinder and brake anchor are supported by pins on brackets attached to the frame respectively. A vehicle brake device for an ultra-high-speed vehicle, characterized in that a spherical bearing is provided between the brake shoe and the pin of the brake shoe mounting part, and a stopper is provided on the brake cylinder to restrict vertical movement of the brake shoe. Brake device.