Locomotive floating disc brake

Abstract

The utility model provides a locomotive floating disc brake, it is mainly including: one outside disc frame surrounds one inside disc outside periphery, and the outside disc is equipped with a plurality of fixed hole's positioning lug and is embedded in the inside disc is equipped with a plurality of positioning recess, a plurality of perforated buffer sheet is stacked in each positioning lug axial one side, and each buffer sheet both sides are equipped with an extension piece and are inserted between the positioning lug both sides and the positioning recess, a fixed assembly includes a plurality of components and a plurality of fasteners, each component is threaded through each perforation and each fixed hole and is combined with each fastener, and the outside disc and the inside disc are stopped between the head of the component and the fastener, and the wear rate when acting is reduced by each buffer sheet as the buffer between each positioning lug and each positioning recess.

Description

Technical Field

[0001] This utility model relates to a disc brake disc structure, and more particularly to a locomotive floating disc brake disc for locomotives. Background Technology

[0002] Motorcycle disc brakes can be divided into fixed and floating types. Fixed disc brakes are prone to brake force loss because the friction during braking generates heat, causing the metal material to expand and deform. Floating disc brakes, on the other hand, have a separate inner and outer disc design with a gap between them. This gap allows for expansion during braking and also allows the outer disc to move axially during braking, improving the uneven force applied by the brake piston.

[0003] The main structure of a common floating brake disc, as described in Taiwan Patent No. M529090, mainly consists of an inner fixed disc with multiple outward-facing combination grooves on its outer periphery, which are connected to an outer ring disc by multiple clamping components. The inner edge of the outer ring disc has multiple connecting ribs protruding into each combination groove. Each clamping component has a limiting piece and a clamping piece that clamp together. The limiting piece has a through hole at each end, and the clamping piece has a through hole at each end. The outer ring disc is connected and fixed by two fasteners passing through the through holes and the through holes and through the inner fixed disc.

[0004] However, when braking, the outer ring disc will float axially relative to the inner fixed disc, causing each connecting rib to impact the middle section of each limiting plate and each clamping plate. Since the two ends of each limiting plate and each clamping plate are fixed by the fastener, the middle section of each limiting plate and each clamping plate is prone to deformation due to impact after long-term use. In addition, the periphery of each connecting rib and each combined groove will also collide with each other and cause wear, thereby shortening the service life of the outer ring disc and the inner fixed disc. There is a real need for improvement. Utility Model Content

[0005] In view of the above-mentioned shortcomings, the main purpose of this utility model is to provide a structure that reduces the wear of floating disc brakes and extends their service life.

[0006] To achieve the above objectives, the technical means adopted by this utility model is a floating disc brake for motorcycles, which mainly includes:

[0007] An outer disc has a hollow interior forming a receiving space. Multiple positioning protrusions are arranged at equal intervals along the inner periphery of the outer disc facing the receiving space, and each positioning protrusion has a fixing hole.

[0008] An inner disc is disposed in the accommodating space. The outer periphery of the inner disc is provided with a plurality of positioning grooves arranged at equal intervals, and each positioning protrusion is correspondingly embedded in each positioning groove.

[0009] Multiple buffer plates are stacked on one side of each positioning protrusion. Each buffer plate has an axial through hole corresponding to the positioning hole, and each buffer plate has an extension plate on both sides inserted between the positioning protrusion and the positioning groove.

[0010] A fixing component includes multiple assemblies and multiple fasteners. Each assembly has a head and a rod portion, the rod portion passing through the through hole and the fixing hole. The fastener is assembled on the section of the rod portion that protrudes from the outer disc, such that the head and the fastener are respectively stopped on both sides of the outer disc and the inner disc in the axial direction.

[0011] In one embodiment, the fixing component further includes a plurality of baffles, each baffle being disposed between each fastener and the outer disc, and stopping on one side of the outer disc and the inner disc, each baffle having a through hole for each rod to pass through.

[0012] In one embodiment, a radial gap is formed between the periphery of each positioning protrusion and the periphery of each positioning groove, and an axial gap is formed between the axial side of each positioning protrusion and the bottom surface of each buffer sheet.

[0013] In one embodiment, the outer disc has a plurality of teeth protruding from its inner periphery at intervals.

[0014] In one embodiment, each of the positioning protrusions has a neck and an enlarged portion, the fixing hole is disposed in the enlarged portion, the width of the neck and the groove width of each of the positioning grooves are less than the maximum width of the enlarged portion, and the groove width of each of the positioning grooves is slightly greater than the width of the neck.

[0015] In one embodiment, each of the positioning grooves has a countersunk hole on one axial side, and the head of the assembly is accommodated in the countersunk hole.

[0016] Therefore, this utility model uses the buffer plate as a buffer between the outer disc and the inner disc, reducing the wear rate during operation and extending the service life of the product. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the present invention.

[0018] Figure 2 This is an exploded view of the present invention.

[0019] Figure 3 This is an exploded view of the present invention.

[0020] Figure 4 This is a three-dimensional schematic diagram of the present invention.

[0021] Figure 5 for Figure 1 A cross-sectional view along line AA.

[0022] Figure 6 for Figure 1 A cross-sectional view along line BB.

[0023] The diagram is marked as follows:

[0024] 1. External disc

[0025] 11. Storage space

[0026] 12. Positioning bump

[0027] 121. Neck

[0028] 122. Enlarged section

[0029] 13. Fixing holes

[0030] 14. Teeth

[0031] 2. Inner disc

[0032] 21. Positioning groove

[0033] 22. Countersunk hole

[0034] 3. Buffer sheet

[0035] 31. Perforation

[0036] 32. Extension film

[0037] 4. Fixing components

[0038] 41. Assemblies

[0039] 42. Fasteners

[0040] 43. Baffle

[0041] 411. Head

[0042] 412. Pole section

[0043] 413. Fastener slot

[0044] 431. Through-hole

[0045] D1, D2, D3. Outer diameter

[0046] G1. Radial clearance

[0047] G2. Axial clearance

[0048] t1, t2. Thickness

[0049] W1, W2. Width

[0050] W3. Spacing

[0051] Y. Radial

[0052] Z. Axial axis Detailed Implementation

[0053] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. Identical elements will be described using the same reference numerals.

[0054] Please see Figures 1 to 6 This utility model discloses a floating disc brake for motorcycles, which mainly includes: an outer disc 1, an inner disc 2, multiple buffer plates 3, and a fixing component 4. The outer disc 1 is disc-shaped, with a hollow interior forming an accommodating space 11. An axial direction Z and a radial direction Y are defined according to the axis and diameter of the outer disc 1. Multiple positioning protrusions 12 are arranged at equal intervals on the inner periphery of the outer disc 1 facing the accommodating space 11, and each positioning protrusion 12 is provided with a fixing hole 13. In this embodiment, each positioning protrusion 12 has a neck 121 and an enlarged portion 122. The neck 121 extends from the inner periphery of the outer disc 1, and the enlarged portion 122 is circular, such that the width W1 of the neck 121 is smaller than the outer diameter D1 of the enlarged portion 122, and the fixing hole 13 is provided in the enlarged portion 122. This utility model does not limit the shape of the enlarged portion 122; the illustration uses a circular shape as an example, but this is not a limitation. Furthermore, in order to improve the heat dissipation rate of the outer disk 1, a plurality of teeth 14 are protruding on the inner periphery of the outer disk 1 in a spaced manner, thereby increasing the heat dissipation area through each of the teeth.

[0055] The inner disc 2 is disposed in the accommodating space 11. The outer periphery of the inner disc 2 is provided with a plurality of equally spaced positioning grooves 21. Each positioning groove 21 has a countersunk hole 22 on one side of the Z-axis. The shape of each positioning groove 21 matches each positioning protrusion 12, so that each positioning protrusion 12 can be correspondingly embedded in each positioning groove 21. The groove width W2 of each positioning groove 21 is smaller than the outer diameter D1 of the enlarged part 122. The groove width W2 of each positioning groove 21 is slightly larger than the width W1 of the neck 121, so that a radial gap G1 is formed between the periphery of each positioning protrusion 12 and the periphery of each positioning groove 21. In addition, the thickness t1 of the positioning protrusion 12 is smaller than the thickness t2 of the inner disc 2.

[0056] Each buffer piece 3 is stacked on one side of the positioning protrusion 12 along the Z-axis and accommodated in the positioning groove 21. Each buffer piece 3 has a through hole 31 along the Z-axis corresponding to the fixing hole 13, and an extension piece 32 is provided on both sides of each buffer piece 3 and inserted between the two sides of the positioning protrusion 12 and the positioning groove 21, thus forming a buffer within the radial gap G1. Furthermore, an axial gap G2 is formed between one side of the positioning protrusion 12 along the Z-axis and the bottom surface of each buffer piece 3.

[0057] The fixing assembly 4 includes multiple assemblies 41, multiple fasteners 42, and multiple baffles 43. Each assembly 41 has a head 411 and a rod portion 412. The outer diameter D2 of the head 411 is larger than the outer diameter D3 of the rod portion 412, and the outer edge of the rod portion 412 is provided with a fastener groove 413. Each baffle 43 is provided with a through hole 431 corresponding to the fixing hole 13. The rod portion 412 passes through the through hole 31, and the fastener... The fixed hole 13 and the through hole 431 are provided. The fastener 42 is assembled in the fastener groove 413 of the rod portion 412 protruding from the outer disc 1 section. The baffle 43 is provided between the fastener 42 and the outer disc 1, so that the head 411 is accommodated in the countersunk hole 22. The head 411 and the baffle 43 respectively stop on the axial Z sides of the outer disc 1 and the inner disc 2, thereby connecting and fixing the outer disc 1 and the inner disc 2.

[0058] During assembly of the floating disc brake of this utility model, the inner disc 2 is positioned at the axial center of the outer disc 1 in the accommodating space 11, and each positioning protrusion 12 is embedded in each positioning groove 21. Then, the extension 32 of each buffer plate 3 is inserted into the radial gap G1 from the direction of each countersunk hole 22, so that each buffer plate 3 is stacked on one side of each positioning protrusion 12. Then, the rod portion 412 of each assembly 41 passes through each through hole 31 and each fixing hole 13 from the direction of each countersunk hole 22, so that each head 411 is accommodated in each countersunk hole 22. At the same time, each baffle 43 is fitted into the section of each rod portion 412 protruding from the outer disc 1 through each through hole 431, and each fastener 42 is fastened to each fastener groove 413, thereby connecting and fixing the outer disc 1 and the inner disc 2.

[0059] See also Figure 5 and Figure 6 After assembly, the radial gap G1 between the periphery of each positioning protrusion 12 and the periphery of each positioning groove 21 is buffered by each extension piece 32, and the axial gap G2 is also buffered by each buffer piece 3. The baffle 43 and the fastener 42 have a preset distance W3 to serve as axial floating space.

[0060] Therefore, when the motorcycle brakes, the outer disc 1 will float relative to the inner disc 2 to each of the radial gaps G1 and each of the axial gaps G2, allowing the brake caliper (not shown in the figure) to make fine adjustments when clamping. Each buffer plate 3 serves as a buffer medium between each of the positioning protrusions 12 and each of the positioning grooves 21, which can reduce the collision wear between each of the positioning protrusions 12 and each of the positioning grooves 21.

[0061] It is worth mentioning that the arrangement of each buffer plate 3 can reduce the amount of floating during braking. Furthermore, when the outer disc 1 floats, each positioning protrusion 12 is constrained by each rod portion 412, which can reduce the problem of excessive radial Y-wave floating causing swaying. Therefore, by arranging each buffer plate 3, this invention reduces the wear rate during braking and reduces swaying, thereby extending the product's service life.

[0062] The above embodiments are merely illustrative of the effects of this utility model and are not intended to limit it. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model should be as set forth in the following claims.

Claims

1. A floating disc brake for locomotives, characterized in that, include: An outer disc has a hollow interior forming an accommodating space, and defines an axial direction and a radial direction. The inner periphery of the outer disc has multiple equidistant positioning protrusions arranged towards the accommodating space, and each positioning protrusion has a fixing hole. An inner disc is provided in the accommodating space. The outer periphery of the inner disc is provided with a plurality of positioning grooves arranged at equal intervals, and each positioning protrusion is correspondingly embedded in each positioning groove. Multiple buffer plates are stacked on one axial side of each positioning protrusion. Each buffer plate has an axial through hole corresponding to the fixing hole, and each buffer plate has an extension plate on both sides inserted between the positioning protrusion and the positioning groove. A fixing component includes multiple assemblies and multiple fasteners. Each assembly has a head and a rod portion, the rod portion passing through the through hole and the fixing hole. The fastener is assembled on the section of the rod portion that protrudes from the outer disc, such that the head and the fastener are respectively stopped on the axial sides of the outer disc and the inner disc.

2. The locomotive floating disc brake according to claim 1, characterized in that, The fixing component also includes multiple baffles, each baffle being disposed between each fastener and the outer disc, and stopping on one side of the outer disc and the inner disc, each baffle having a through hole for each rod to pass through.

3. The locomotive floating disc brake according to claim 1, characterized in that, A radial gap is formed between the periphery of each positioning protrusion and the periphery of each positioning groove, and an axial gap is formed between the axial side of each positioning protrusion and the bottom surface of each buffer piece.

4. The locomotive floating disc brake according to claim 1, characterized in that, The outer disc has multiple teeth arranged at intervals protruding from its inner periphery.

5. The locomotive floating disc brake according to claim 1, characterized in that, Each of the positioning protrusions has a neck and an enlarged portion. The fixing hole is provided in the enlarged portion. The width of the neck and the groove width of each positioning groove are less than the maximum width of the enlarged portion, and the groove width of each positioning groove is greater than the width of the neck.

6. The locomotive floating disc brake according to claim 1, characterized in that, Each positioning groove has a countersunk hole on one axial side, and the head of the assembly is accommodated in the countersunk hole.

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