JP2000130479A - Disc brake device for railroad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disc brake device for a railroad for fitting brake assemblies to a caliper frame by one man work in a site for assembling the device for the railroad. SOLUTION: The bogie frame and calipers of a conventional disc brake device for a railroad are integrated to be adopted as a caliper frame 3, and brake assemblies composed of a cylinder assembly 4, a torque receiving member 5, and a frictional pad 6 are bolted to the frame 3 by a bolt 7a, in a site for assembling a disc brake device 1 for the rail road.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway disc brake device for reducing heavy work when assembling a heavy railway disc brake device and improving safety.

[0002]

2. Description of the Related Art A brake assembly including a caliper, a cylinder assembly, a torque receiving member and a friction pad of a railway disk brake device weighs 60 to 80 kg, which is about 20 times as much as that for a passenger car and is very heavy. FIG. 7 is a front view of a conventional railway disc brake device 50 in which the brake assembly 51 is mounted on a bogie frame 52. The brake assembly 51 includes a caliper 53, a cylinder assembly 54, a torque receiving member 55, and a friction pad 56. The cylinder assembly 54 and the torque receiving member 55 are attached to the caliper 53 with bolts 57a and 57b, respectively. Have been. The friction pad 56
Is mounted on a pin 58 press-fitted into the torque receiving member 55.

[0003]

The above-mentioned brake assembly 5
When 1 is attached to the bogie frame 52 with the bolts 57c, since it weighs 60 to 80 kg, a hoist or the like must be used, and a qualified person for slinging work is required, and it takes several people for safety. I had to work with care.

In addition, not only during the mounting operation, but also in assembling, packing, loading, transporting, and unloading the brake assembly 51, it requires a large amount of labor and cost due to its heavy weight.

[0005] Therefore, the present invention is to reduce the weight by changing the configuration of the railway disc brake device, to install the brake assembly, and to assemble and pack the brake assembly.
Provided is a railroad disc brake device capable of reducing operations such as loading, transporting, and unloading, improving safety, and reducing costs.

[0006]

SUMMARY OF THE INVENTION A conventional brake assembly comprises a caliper, a cylinder assembly, a torque receiving member and a friction pad, of which the caliper is the heaviest. Therefore, in order to reduce the weight of the brake assembly, the heavy caliper is integrated with the bogie frame. (Hereinafter, an integrated part is called a caliper frame.)

[0007] A cylinder assembly,
To install the torque receiving member and friction pad,
The following two means are provided for the mounting method. (1) A cylinder in which a torque receiving member and a friction pad are mounted on a cylinder assembly mounting seat of a caliper frame.
Attach Assy. (2) Attach the cylinder assembly, the torque receiving member and the friction pad to the cylinder assembly mounting seat and the torque receiving member mounting seat of the caliper frame, respectively.

With the above two methods, since the brake assembly and each part to be mounted are light, it is possible to work alone by observing Article 7 of the Labor Standards Rules.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of a railway disc brake device 1 according to a first embodiment of the present invention, and FIG. 2 is a side view thereof.

A bogie frame and a caliper of a conventional railroad disc brake device are integrated into a caliper frame 3. A cylinder assembly mounting seat 13 is provided on the outer surface of the lower end of the bifurcated portion of the caliper frame 3 straddling the disk 9. At the site where the railway disc brake device 1 is assembled, the cylinder assembly 4, the torque receiving member 5 and the friction pad 6 are mounted on the cylinder assembly mounting seat 13.
Is assembled with bolts 7a.
In the brake assembly 2, the torque receiving member 5 is mounted on the torque receiving member mounting seat 14 provided on the cylinder assembly 4 with bolts 7 b, and the friction pad 6 is assembled with the pin 8 pressed into the torque receiving member 5. It is attached.

In this manner, the weight of each of the cylinder assembly 4, the torque receiving member 5, and the friction pad 6 is about 7, 1.6 kg, and the total weight is about 14 kg.
Therefore, 20k regulated by Article 7 of the Labor Standards Regulations
g or less, which is sufficient for one-person work.

FIG. 3 is a front view of a railway disc brake device 1 according to a second embodiment of the present invention, and FIG. 4 is a side view thereof.

In the second embodiment, similarly to the first embodiment, the bogie frame and the caliper are integrated into a caliper frame 3.
In the second embodiment, the forked portion of the caliper frame 3 straddling the disk 9 is extended to the rear surface of the cylinder assembly 4 and a cylinder assembly mounting seat 13 is provided on the inner surface of the forked portion. Then, the brake assembly 2 including the cylinder assembly 4, the torque receiving member 5, and the friction pad 6 is mounted on the cylinder assembly mounting seat 13 with the bolt 7a. The brake assembly 2 is, like the first embodiment, mounted on the torque receiving member mounting seat 14 provided on the cylinder assembly 4 with the torque receiving member 5 with bolts 7b.
A friction pad 6 is attached to the pin 8 pressed into the torque receiving member 5.
Is assembled.

The features of the first and second embodiments will be described. As shown in FIG. 2, the first embodiment has a shorter axial dimension of the disc brake than the second embodiment shown in FIG. This is a great advantage in the layout design of the brake,
The degree of freedom in design is great in terms of avoiding interference with other parts around the brake, and the space can be used effectively. In the first embodiment, when the hydraulic pressure is applied, the reaction force of the hydraulic pressure is reduced by the bolt 7.
In this case, since a bending moment is received by the cylinder assembly 4 and the bending moment is supported by the bolt 7a as a fulcrum, the cylinder assembly 4 requires a large-sized bolt and a large bending rigidity. In contrast, the second embodiment is
The reaction force of the hydraulic pressure is not applied to the bolt 7a, and no bending moment is applied to the cylinder assembly 4. Therefore, in the second embodiment, the size of the bolt 7a can be reduced, and the weight of the cylinder assembly 4 can be reduced. That is, the first embodiment is superior in terms of brake mounting layout design, and the second embodiment can be lighter in terms of weight.

As described above, the mounting bolt 7 of the second embodiment
The weight of the cylinder assembly 4 including a is about 6.5 kg, which is about 0.5 kg lighter than the first embodiment.
Therefore, the total weight of the brake assembly 2 of the second embodiment is about 13.5 kg, and the mounting work is facilitated by the reduced weight.

Next, the operation of the first and second embodiments will be described. The brake fluid pressure supplied from a hose (not shown) connected to the base 12 is supplied to the cylinder assemblies 4 on both sides of the disk 9 by the pipe 10 via the three-way valve 11. A piston (not shown) advances by the supplied braking fluid pressure, and the friction pad 6 presses the rotating disk 9 to brake.

The braking torque of the friction pad 6 is applied to the pin 8 pressed into the torque receiving member 5 and finally received by the caliper frame 3 via the cylinder assembly 4. The friction pad 6 can be replaced by loosening the bolt 7b and removing one of the torque receiving members 5 to shift the friction pad 6 in the disk rotation direction.

FIG. 5 is a front view of a railway disc brake device 1 according to a third embodiment of the present invention, and FIG. 6 is a side view thereof. As in the first and second embodiments, the bogie frame and the caliper of the conventional railway disc brake device are integrated into a caliper frame 3. A cylinder / assembly mounting seat 13 is provided on the outer surface of the forked portion of the caliper frame 3 straddling the disk 9, and a torque receiving member mounting seat 14 is provided on the side surface of the forked portion. At the site where the railway disc brake device 1 is assembled, the cylinder assembly 4 is mounted on the cylinder assembly mounting seat 13 of the caliper frame 3 with the bolt 7a, and the torque receiving member 5 is mounted on the torque receiving member mounting seat 14.
Then, the friction pad 6 is attached with the bolt 7b. The friction pad 6 is attached to the pin 8 press-fitted into the torque receiving member 5.

In the third embodiment, since the torque receiving member mounting seat 14 is provided on the caliper frame 3, the cylinder assembly 4 is lighter than the first and second embodiments, and its weight is about 5 kg. became. (The cylinders of the first and second embodiments
(The weight of Assy 4 is 7kg and 6.5kg respectively)

The operation of mounting the cylinder assembly 4, the torque receiving member 5, and the friction pad 6 to the caliper frame 3 of the third embodiment is divided into two operations. The weight of the cylinder assembly 4 is about 5 kg. Since the weight of the torque receiving member 5 and the friction pad 6 is 7 kg, the work is further facilitated. (The weight of the brake assembly 2 of the first and second embodiments is
They are 14 kg and 13.5 kg respectively. The operation of the third embodiment and the method of replacing the friction pad 5 are the same as those of the first and second embodiments.

[0021]

By integrating the bogie frame and caliper of the conventional disc brake device for railways, other lightweight brake assemblies or each part can be mounted by one person without using a hoist, etc. Disc brake device can be assembled. Further, the weight reduction reduces the work of assembling, packing, loading, transporting, and unloading brake assemblies, thereby improving safety and reducing costs.

[Brief description of the drawings]

FIG. 1 is a front view of a railway disc brake device according to a first embodiment of the present invention.

FIG. 2 is a side view of the railway disc brake device according to the first embodiment of the present invention.

FIG. 3 is a front view of a railway disc brake device according to a second embodiment of the present invention.

FIG. 4 is a side view of a railway disc brake device according to a second embodiment of the present invention.

FIG. 5 is a front view of a railway disc brake device according to a third embodiment of the present invention.

FIG. 6 is a side view of a railway disc brake device according to a third embodiment of the present invention.

FIG. 7 is a front view of a conventional railway disc brake device.

[Explanation of Codes] Railroad disc brake device 2. Brake assembly 3. Caliper frame 4. 4. Cylinder assembly Torque receiving member 6. Friction pad 7a. Bolt 7b. Bolt 8. Pin 9. Disk 10. Tube 11. Three-way valve 12. Base 13. 13. Cylinder assembly mounting seat Torque receiving member mounting seat

Continued on the front page F term (reference) 3J058 AA43 AA48 AA53 AA66 AA74 AA77 AA84 AA87 BA61 BA64 BA68 BA70 CC03 CC25 CC33 CC78 FA21

Claims (2)

[Claims] 1. A railway disc brake device comprising a bogie frame, a caliper, a cylinder assembly, a torque receiving member and a friction pad, wherein the bogie frame and the caliper are integrated into a caliper frame, and the caliper frame is A disc brake device for railways, wherein a cylinder assembly in which a torque receiving member and a friction pad are assembled is attached to the provided cylinder assembly mounting seat. 2. In a railway disc brake device comprising a bogie frame, a caliper, a cylinder assembly, a torque receiving member, and a friction pad, the bogie frame and the caliper are integrated into a caliper frame, and the caliper frame is attached to the bogie frame. A disc brake device for railways, wherein a cylinder assembly and a torque receiving member are mounted together with a friction pad on the provided cylinder assembly mounting seat and torque receiving member mounting seat.