Brake disc capable of preventing edge of disc body from cracking

Abstract

The utility model discloses a brake disc capable of preventing the edge of a disc body from cracking, which comprises a carbon-ceramic brake disc, the outer side wall of the carbon-ceramic brake disc is coated with an anti-oxidation layer, the edge of the carbon-ceramic brake disc is provided with a composite chamfering mechanism, the side wall of the carbon-ceramic brake disc is provided with an abdicating hole, the side wall of the carbon-ceramic brake disc is provided with a sliding groove, and a locking mechanism is arranged in the sliding groove. The locking mechanism comprises a sliding rod, an anti-skid sleeve and a positioning hole, the sliding rod is installed in the sliding groove in a sliding mode, the anti-skid sleeve is connected to the outer side of the end, located in the sliding groove, of the sliding rod in a sleeving mode, and the anti-skid sleeve can be attached to the inner side wall of the sliding groove. When the carbon-ceramic brake disc is connected with the wheel, the wheels can push the sliding rods towards the interiors of the sliding grooves, so that the sliding rods are inserted into the positioning holes, the connection between the carbon-ceramic brake disc and the external wheel mounting shaft is reinforced, and the condition that the carbon-ceramic brake disc shakes or shakes is avoided.

Description

TECHNICAL FIELD

[0001] The patent relates to the technical field of brake discs, in particular to a brake disc with edge anti-cracking disc body. BACKGROUND

[0002] The carbon ceramic brake disc is a high-performance braking component with carbon fiber reinforced ceramic matrix composite as the core, which becomes the standard in the fields of aerospace, racing, high-end cars, etc. due to its lightweight, high-temperature resistance, high wear resistance and other characteristics.

[0003] At present, the hole provided on the brake disc for penetrating the screw rod on the wheel shaft has a certain space for easy installation. At the same time, the brake disc is only positioned by a positioning screw, and then fixed by the clamping of the wheel after the wheel is installed. If the positioning screw is broken or loose, the brake disc will shake due to radial movement during braking. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the patent is to provide a brake disc with edge anti-cracking disc body to solve the problems raised in the background technology.

[0005] To achieve the above purpose, the patent provides the following technical solution: a brake disc with edge anti-cracking disc body, comprising a carbon ceramic brake disc, the outer side wall of the carbon ceramic brake disc is coated with an oxidation-resistant layer, and a composite chamfer mechanism is provided at the edge of the carbon ceramic brake disc.

[0006] The side wall of the carbon ceramic brake disc is provided with a clearance hole, and the screw rod on the external wheel mounting shaft can penetrate the side wall of the carbon ceramic brake disc through the clearance hole. The side wall of the carbon ceramic brake disc is provided with a sliding groove, and a locking mechanism is installed in the sliding groove. The locking mechanism can be attached to the external wheel mounting shaft. The locking mechanism includes a sliding rod, an anti-skid sleeve and a positioning hole. The sliding rod is slidingly installed in the sliding groove. An anti-skid sleeve is attached to the outer side of one end of the sliding rod in the sliding groove. The anti-skid sleeve can be attached to the inner side wall of the sliding groove. The side wall of the external wheel mounting shaft is provided with a positioning hole, and the sliding rod can be inserted and installed in the positioning hole.

[0007] Preferably, the composite chamfer mechanism includes a first chamfer section and a second chamfer section. The first chamfer section is a C-shaped chamfer, and the second chamfer section is an R-shaped chamfer. The second chamfer section is smoothly connected to the first chamfer section.

[0008] Preferably, the carbon ceramic brake disc is attached to the outer side of the external wheel mounting shaft. The side wall of the carbon ceramic brake disc is provided with a through hole, and a positioning bolt is inserted and installed in the through hole. The positioning bolt can be screwed into the screw hole on the side wall of the external wheel mounting shaft.

[0009] Preferably, the side wall of the carbon ceramic brake disc is provided with a heat dissipation hole.

[0010] Preferably, the included angle between the first chamfer section and the side wall of the carbon ceramic brake disc is 30°, and the radius of the second chamfer section is 1mm.

[0011] Preferably, the inner side wall of the carbon ceramic brake disc and the outer side wall of the external wheel mounting shaft are both provided with a key groove, and a connecting key is inserted and mounted in the key groove.

[0012] Compared with the prior art, the beneficial effects of the present patent are:

[0013] The device sets a locking mechanism on the carbon ceramic brake disc, so that after the wheel is mounted, the wheel can push the sliding rod into the sliding groove, so that the sliding rod is inserted and mounted in the positioning hole, thereby reinforcing the connection between the carbon ceramic brake disc and the external wheel mounting shaft, and avoiding the shaking or shaking of the carbon ceramic brake disc;

[0014] In addition, the device also sets a connecting key on the carbon ceramic brake disc and the external wheel mounting shaft, which further reinforces the connection between the carbon ceramic brake disc and the external wheel mounting shaft, and ensures the stability of the carbon ceramic brake disc installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure of the present patent is shown in the figure.

[0016] Figure 2 The structure of the present patent is shown in the figure.

[0017] Figure 3 The structure of the present patent is shown in the figure. Figure 2 The structure of the present patent is shown in the figure.

[0018] In the figure: 1 carbon ceramic brake disc, 2 oxidation-resistant layer, 3 composite chamfer mechanism, 31 first chamfer section, 32 second chamfer section, 4 clearance hole, 5 sliding groove, 6 locking mechanism, 61 sliding rod, 62 anti-skid sleeve, 63 positioning hole, 7 through hole, 8 positioning bolt, 9 heat dissipation hole, 10 key groove, 11 connecting key. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present patent will be described clearly and completely below with reference to the drawings in the embodiments of the present patent. Obviously, the described embodiments are only part of the embodiments of the present patent, not all. Based on the embodiments in the present patent, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present patent.

[0020] Please refer to Figures 1-3The patent provides a technical solution: a brake disc for preventing the edge of the disc from cracking, comprising a carbon ceramic brake disc 1, the outer side wall of the carbon ceramic brake disc 1 is coated with an oxidation-resistant layer 2, and a composite chamfer mechanism 3 is arranged at the edge of the carbon ceramic brake disc 1.

[0021] By arranging the oxidation-resistant layer 2 on the outer surface of the carbon ceramic brake disc 1, the high-temperature resistance of the device can be improved, and the composite chamfer mechanism 3 can effectively reduce the initiation of cracks on the interface of the carbon ceramic brake disc 1.

[0022] The side wall of the carbon ceramic brake disc 1 is provided with a clearance hole 4, and the screw rod on the external wheel mounting shaft can pass through the clearance hole 4 to penetrate the side wall of the carbon ceramic brake disc 1. The side wall of the carbon ceramic brake disc 1 is provided with a sliding groove 5, and the sliding groove 5 is provided with a locking mechanism 6. The locking mechanism 6 can be combined with the external wheel mounting shaft. The locking mechanism 6 comprises a sliding rod 61, an anti-skid sleeve 62 and a positioning hole 63. The sliding rod 61 is slidingly installed in the sliding groove 5. The outer side of one end of the sliding rod 61 located in the sliding groove 5 is sleeved with the anti-skid sleeve 62. The anti-skid sleeve 62 can be combined with the inner side wall of the sliding groove 5. The side wall of the external wheel mounting shaft is provided with a positioning hole 63. The sliding rod 61 can be inserted and installed in the positioning hole 63.

[0023] By arranging the locking mechanism 6 on the carbon ceramic brake disc 1, the wheel can push the sliding rod 61 into the sliding groove 5 after the wheel is installed, so that the sliding rod 61 is inserted and installed in the positioning hole 63, thereby reinforcing the connection between the carbon ceramic brake disc 1 and the external wheel mounting shaft, avoiding the shaking or shaking of the carbon ceramic brake disc 1, and affecting the driving safety.

[0024] Specifically, the composite chamfer mechanism 3 comprises a first chamfer section 31 and a second chamfer section 32. The first chamfer section 31 is a C-shaped chamfer, and the second chamfer section 32 is an R-shaped chamfer. The second chamfer section 32 is smoothly connected with the first chamfer section 31.

[0025] The slope design of the C-shaped first chamfer section 31 preferentially disperses the machining stress, and the arc transition of the R-shaped second chamfer section 32 reduces the thermal stress peak value. The two can effectively reduce the initiation of interface cracks.

[0026] Specifically, the carbon ceramic brake disc 1 is sleeved on the outer side of the external wheel mounting shaft. The side wall of the carbon ceramic brake disc 1 is provided with a through hole 7. The positioning bolt 8 is inserted and installed in the through hole 7. The positioning bolt 8 can be screwed into the screw hole on the side wall of the external wheel mounting shaft.

[0027] Specifically, the side wall of the carbon ceramic brake disc 1 is provided with a heat dissipation hole 9.

[0028] By arranging the heat dissipation hole 9, the heat dissipation effect of the device can be improved, and the heat accumulation on the carbon ceramic brake disc 1 can be avoided.

[0029] Specifically, the included angle between the first chamfer section 31 and the side wall of the carbon ceramic brake disc 1 is 30°, and the radius of the second chamfer section 32 is 1mm;

[0030] By setting the composite structure composed of the C-shaped first chamfer section 31 and the R-shaped second chamfer section 32 at the edge of the carbon ceramic brake disc 1, and optimizing the chamfer angle, width, radius and depth parameters, the mechanical processing stress and thermal stress are effectively dispersed, the crack propagation of the coating and the carbon ceramic brake disc 1 substrate interface is inhibited, the processing feasibility and high reliability are combined, and the anti-cracking performance and service life of the carbon ceramic brake disc 1 are significantly improved.

[0031] Specifically, the inner side wall of the carbon ceramic brake disc 1 and the outer side wall of the external wheel mounting shaft are both provided with a key groove 10, and a connecting key 11 is inserted and mounted in the key groove 10;

[0032] The connection between the carbon ceramic brake disc 1 and the external wheel mounting shaft is further reinforced by the setting of the connecting key 11, and the stability of the installation of the carbon ceramic brake disc 1 is ensured.

[0033] Working principle: when installing the device, first install the connecting key 11 in the key groove 10 on the mounting shaft, then sleeve the device on the external wheel mounting shaft, and make the upper half of the connecting key 11 inserted into the key groove 10 on the inner wall of the carbon ceramic brake disc 1, then insert the positioning bolt 8 into the through hole 7 and screw it into the screw hole on the side wall of the external wheel mounting shaft to preliminarily position the carbon ceramic brake disc 1, then install the wheel, and the wheel can push the sliding rod 61 into the sliding groove 5, so that the sliding rod 61 is inserted and mounted in the positioning hole 63, thereby reinforcing the connection between the carbon ceramic brake disc 1 and the external wheel mounting shaft, avoiding the shaking or shaking of the carbon ceramic brake disc 1, and affecting the driving safety.

[0034] It is obvious to those skilled in the art that the present patent is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present patent. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present patent is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present patent. Any reference signs in the claims should not be considered as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A brake disc with anti-crack edge, comprising a carbon ceramic brake disc (1), characterized in that: The outer wall of the carbon ceramic brake disc (1) is coated with an anti-oxidation layer (2), and a composite chamfering mechanism (3) is provided at the edge of the carbon ceramic brake disc (1). The carbon-ceramic brake disc (1) has a clearance hole (4) on its side wall. The screw on the external wheel mounting shaft can pass through the clearance hole (4) through the side wall of the carbon-ceramic brake disc (1). The carbon-ceramic brake disc (1) has a sliding groove (5) on its side wall. A locking mechanism (6) is installed in the sliding groove (5). The locking mechanism (6) can fit with the external wheel mounting shaft. The locking mechanism (6) includes a sliding rod (61), an anti-slip sleeve (62), and a positioning hole (63). The sliding rod (61) is slidably installed in the sliding groove (5). An anti-slip sleeve (62) is sleeved on the outer side of one end of the sliding rod (61) located in the sliding groove (5). The anti-slip sleeve (62) can fit with the inner side wall of the sliding groove (5). The side wall of the external wheel mounting shaft has a positioning hole (63). The sliding rod (61) can be inserted into the positioning hole (63).

2. The brake disc with anti-crack edge as described in claim 1, characterized in that: The composite chamfering mechanism (3) includes a first chamfering segment (31) and a second chamfering segment (32). The first chamfering segment (31) is a C-shaped chamfer, and the second chamfering segment (32) is an R-shaped chamfer. The second chamfering segment (32) and the first chamfering segment (31) are smoothly connected.

3. A brake disc with anti-crack edge as described in claim 1, characterized in that: The carbon-ceramic brake disc (1) is fitted onto the outside of the outer wheel mounting axle. The side wall of the carbon-ceramic brake disc (1) has a through hole (7). A positioning bolt (8) is inserted into the through hole (7). The positioning bolt (8) can be screwed into a screw hole installed on the side wall of the outer wheel mounting axle.

4. A brake disc with anti-crack edge as described in claim 1, characterized in that: The carbon-ceramic brake disc (1) has heat dissipation holes (9) on its side wall.

5. A brake disc with anti-crack edge as described in claim 2, characterized in that: The angle between the first chamfered section (31) and the side wall of the carbon ceramic brake disc (1) is 30°, and the radius of the second chamfered section (32) is 1mm.

6. A brake disc with anti-crack edge as described in claim 1, characterized in that: The inner wall of the carbon ceramic brake disc (1) and the outer wall of the outer wheel mounting shaft are both provided with keyways (10), and a connecting key (11) is inserted into the keyway (10).

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