JP4230262B2 - Vehicle brake control - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a brake element for a vehicle brake that can improve the braking performance of a friction brake used in a railway vehicle.
[0002]
[Prior art]
FIG. 6 is a view showing a conventional vehicle brake control (No. 1), FIG. 6 (a) is a sectional view of the vehicle brake control, and FIG. 6 (b) is a front view of the vehicle brake control. FIG. It is shown in the following Patent Document 1.
[0003]
In these drawings, reference numeral 101 denotes a restrictor, 102 denotes a back metal, 103 denotes a restrictor body, 104 denotes a ceramic block, and 105 denotes a friction surface.
[0004]
In this conventional example, the ceramic block 104 is embedded in the main body 103 of the brake and a part of the ceramic block 104 is exposed to the friction surface 105. The ceramic block 104 comes off from the ceramic block 104 by contact with the wheel (not shown). Ceramic particles are supplied to the friction surface 105.
[0005]
FIG. 7 is a view showing a conventional vehicle brake control (part 2), FIG. 7 (a) is a sectional view of the vehicle brake control, and FIG. 7 (b) is a front view of the vehicle brake control. FIG. It is shown in the following Patent Document 2.
[0006]
In these figures, 201 is a cast iron type control, 202 is a back metal, 203 is a control body, 204 is an embedded block (a sintered body of ceramic particles and a metal binder), and 205 is a friction surface.
[0007]
In this conventional example, the embedding block 204 for the restrictor is embedded while exposing a part thereof on the friction surface 205 of the cast iron-based restrictor 201. The embedded block 204 is made of a sintered body of ceramic particles and a metal binder.
[0008]
Further, as another vehicle brake brake, a cast iron brake main body having a braking friction surface, a brake made of a material harder than the brake main body, and a plurality of gaps are formed substantially uniformly. A block and a back metal that is positioned behind the brake block and casts around the main body of the brake control body, and the brake block has the one surface exposed to the brake friction surface of the control wheel body. A rolling stock brake for a railway vehicle is disclosed that is integrated with the main body of the brake control by casting the whole including the gap of the above (Patent Documents 3 and 4 below).
[0009]
[Patent Document 1]
Japanese Patent No. 30041157 (pages 2 to 3 in FIG. 1)
[0010]
[Patent Document 2]
Japanese Patent Laid-Open No. 9-112612 (pages 2 to 3 in FIG. 1)
[0011]
[Patent Document 3]
Japanese Patent No. 2873569 (pages 2 and 3)
[0012]
[Patent Document 4]
Japanese Patent No. 3261478 (FIG. 2 on page 2)
[0013]
[Problems to be solved by the invention]
However, the above-described conventional alloy-based cast iron brake has a high-phosphorus cast iron block compounded with a sintered or ceramic material on both ends, and a cast iron-based intermediate block that generates a weld piece therebetween. There was no hybrid. In addition, there is no control device in which plate-like blocks are alternately arranged to make cross-section streaks contact in the wheel rotation direction. Therefore, the conventional general control cannot satisfy both high adhesive strength and stabilization of friction characteristics. On the other hand, ordinary cast iron-based and conventional high-phosphorus cast iron-based control elements have high adhesion, but have problems of adhesion of a weld piece and wear amount.
[0014]
In view of the above situation, the present invention ensures the effect of increased adhesive force, which is an advantage of a cast iron type control device, and friction characteristics, which is an advantage of a high phosphorus cast iron block combined with a sintered block or a ceramic material. An object of the present invention is to provide a brake element for a vehicle brake that can stabilize the vehicle.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides
[1] A back metal (12) having a cast iron intermediate block (13) fixed on the back metal (12) and generating a weld piece at the center, and composited with ceramic materials on both sides phosphorus cast iron block or sintering system block (14A, 14B, 15A, 15B) in a vehicle brake system Waco having a hybrid structure in which a composite with the ceramic material than the cast iron intermediate block (13) A vertical groove is formed in the sliding direction of the tread surface between the high-phosphorous cast iron block or sintered block (14A, 14B, 15A, 15B) , and a cast iron type control element (16A, 16B ) is formed in the vertical groove. ) To form a five-block hybrid structure, forming a uniform line on the wheel tread, and ensuring both an increased adhesion effect and a reduction in rolling noise .
[0016]
[2] The vehicle brake brake according to [1], wherein the cast iron-based intermediate block (13) for generating the weld piece and the high-phosphorus cast iron block or sintered block (14A, 14B ) combined with a ceramic material , 15A, 15B) between and having a transverse groove that is orthogonal to the sliding direction of the tread surface (17A, 17B).
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
[0018]
FIG. 1 is a view showing a vehicle brake control and a wheel showing a reference example of the present invention, FIG. 2 is a configuration diagram of a vehicle brake control showing a reference example of the present invention, and FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A, FIG. 2C is a cross-sectional view taken along line BB in FIG. 2A, and FIG. It is a perspective view of a rotator.
[0019]
In these drawings, 1 is a brake brake for a vehicle brake, 2 is a back metal, 3 is a cast iron intermediate block for generating a weld piece, 4A and 5A are high phosphorus cast iron blocks (high phosphorus cast iron SiC composited with a ceramic material). 4B and 5B are sintered blocks, 6A and 6B are longitudinal grooves formed in the sliding direction of the tread surface, 7A and 7B are transverse grooves orthogonal to the sliding direction of the tread surface, and 10 is for vehicle brakes. The wheel brake 1 is a wheel pressed by an external force F.
[0020]
As described above, the vehicle brake brake 1 according to this reference example is an alloy-based brake, which is a high-phosphorus cast iron block (high-phosphorus cast iron SiC ceramics) 4A, 5A or sintered. This is a three-block hybrid structure in which a cast iron intermediate block 3 is formed between the system blocks 4B and 5B. The blocks 4A, 4B, 5A and 5B other than the cast iron intermediate block 3 have a tread surface. Longitudinal grooves 6A and 6B are formed in the sliding direction.
[0021]
By comprising in this way, the adhesive force between a rail and a wheel tread is the high iron cast iron type | system | group block 4A, 5A compounded with the cast iron type | system | group intermediate block 3> ceramic material which produces a weld piece> sintering type | system | group block 4B, 5B, and the frictional force between the wheel tread and the brake brake brake is as follows. Sintered blocks 4B, 5B> High phosphorus cast iron blocks 4A, 5A composited with ceramic material> Cast iron intermediate block that produces weld pieces There is a relationship of three.
[0022]
Further, the formation of the longitudinal grooves 6A and 6B makes it possible to form a uniform line on the wheel tread surface, and it is possible to achieve both securing of a thickening effect and reduction of rolling noise.
[0023]
Here, the area of the intermediate block 3 is preferably 10% or more and 50% of the entire area of the brake brake brake 1 and the width of the longitudinal grooves 6A and 6B is preferably 2 mm or more and 20 mm or less. .
[0024]
FIG. 4 is a block diagram of a brake brake for a vehicle according to an embodiment of the present invention, FIG. 4 (a) is a front view thereof, FIG. 4 (b) is a cross-sectional view taken along line AA in FIG. FIG. 4C is a cross-sectional view taken along line BB in FIG. 2A, and FIG. 5 is a perspective view of the vehicle brake brake gear.
[0025]
In these drawings, 11 is a brake brake for a vehicle, 12 is a back metal, 13 is a cast iron intermediate block for generating weld pieces, 14A, 14B, 15A and 15B are high phosphorus cast iron blocks combined with ceramic materials ( Alternatively, a sintered block may be used), 16A and 16B are cast iron type control elements formed in the sliding direction of the tread, and 17A and 17B are transverse grooves orthogonal to the sliding direction of the tread.
[0026]
Thus, the vehicle brake brake 11 of this embodiment is an alloy-based brake, and is a high phosphorus cast iron block (or a sintered block) 14A, 14B, 15A, which is composited with a ceramic material. 15B is a three-block hybrid structure in which a cast iron-based intermediate block 13 is disposed between the blocks 15A, and blocks 14A, 14B, 15A, 15B other than the cast iron-based intermediate block 13 have cast iron-based control elements in the sliding direction of the tread surface. 16A and 16B.
[0027]
With this configuration, a high phosphorus cast iron block (or a sintered block) 14A composited with a ceramic material can be secured while ensuring the effect of increased adhesive strength, which is an advantage of a cast iron control wheel that produces weld pieces. , 14B, 15A, 15B, the friction characteristics can be stabilized.
[0028]
Further, the formation of the cast iron type control element pieces 16A and 16B formed in the sliding direction of the tread can form uniform lines on the tread of the wheel, thereby ensuring both the increased adhesion effect and the reduction of rolling noise. be able to.
[0029]
Further, these configurations can be applied as a thickened tread polisher or tread cleaner in addition to the wheel tread control.
[0030]
Further, it is possible to reduce the sharing of increased adhesion and large capacity disc brakes in the 350 km / h class Shinkansen.
[0031]
In addition, this invention is not limited to the said Example, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.
[0032]
【The invention's effect】
As described above in detail, according to the present invention, the following effects can be obtained.
[0033]
(A) It is possible to secure the effect of the increased adhesive force, which is an advantage of the cast iron type control device, and to stabilize the friction characteristics, which is an advantage of the high phosphorus cast iron system and the sintered system block combined with the ceramic material.
[0034]
(B) By forming a uniform line on the wheel tread, it is possible to achieve both securing of a thickening effect and reduction of rolling noise.
[Brief description of the drawings]
FIG. 1 is a view showing a brake brake device and wheels for a vehicle brake according to a reference example of the present invention.
FIG. 2 is a configuration diagram of a brake brake for a vehicle brake showing a reference example of the present invention.
FIG. 3 is a perspective view of a vehicle brake restrictor showing a reference example of the present invention.
FIG. 4 is a configuration diagram of a brake brake device for a vehicle according to an embodiment of the present invention.
FIG. 5 is a perspective view of a vehicle brake control device showing an embodiment of the present invention.
FIG. 6 is a view showing a conventional vehicle brake brake brake (No. 1).
FIG. 7 is a diagram showing a conventional vehicle brake brake brake (No. 2).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,11 Vehicle brake control device 2,12 Back metal 3,13 Cast iron-based intermediate block 4A, 5A for producing weld pieces High-phosphorus cast iron block 4B, 5B Sintered block 6A, 6B Longitudinal grooves 7A, 7B, 17A, 17B Cross grooves perpendicular to the sliding direction of the tread surface 10 Wheels 14A, 14B, 15A, 15B High-phosphorus cast iron block or sintered with ceramic material Cast block 16A, 16B Cast iron type control element formed in the sliding direction of the tread

Claims (2)

A high-phosphorus cast iron system having a back metal (12) and a cast iron-based intermediate block (13) fixed on the back metal (12) and generating a weld piece at the center, and composited with ceramic materials on both sides thereof block or sintering system block (14A, 14B, 15A, 15B) in a vehicle brake system Waco having a hybrid structure in which a high phosphorus complexed with the ceramic material than the cast iron intermediate block (13) A vertical groove is formed in the sliding direction of the tread between the cast iron block or sintered block (14A, 14B, 15A, 15B) , and a cast iron type control element (16A, 16B) is formed in the vertical groove. to five blocks of the hybrid structure and without, to form a uniform streaks in wheel tread, regulations wheel vehicle brakes, characterized in that to achieve both reduction of securing the rolling noise of increasing adhesive effect . 2. The brake element for a vehicle brake according to claim 1, wherein the cast iron-based intermediate block (13) for generating the weld piece and the high-phosphorus cast iron block or sintered block (14A, 14B, 15A, 15B ) combined with a ceramic material. ) for a vehicle brake system, characterized in that it has a cross groove perpendicular to the sliding direction of the tread surface (17A, 17B) between Waco.

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