Brake disc with cooling structure

Abstract

The brake disc with the cooling structure comprises an annular disc body, an annular air groove is formed in the inner circumference of the annular disc body, air outlet grooves which are evenly distributed in the circumferential direction are formed in the outer circumferential wall of the annular disc body, ventilation holes are formed in the disc face of the annular disc body, and the ventilation holes and the air outlet grooves are communicated with an inner cavity of the annular air groove. A coaxial positioning lantern ring is detachably connected into the annular disc body, a rotating sleeve is arranged outside the positioning lantern ring in a sleeving mode, air plates evenly distributed in the circumferential direction are fixedly connected to the outer circumferential wall of the rotating sleeve, and the free ends of the air plates are opposite to the annular air grooves. According to the utility model, the coaxial rotating sleeve is connected in the annular disc body through the positioning lantern ring, then the periphery of the rotating sleeve is fixedly connected with a circle of air plate, and one end of the air plate is opposite to the annular air groove formed in the annular disc body, so that when the annular disc body rotates annularly, the rotating sleeve is in a static or low-speed free rotation state; therefore, the air plates can passively push airflow to blow to the annular air grooves, heat dissipation inside the annular disc body is accelerated, the heat dissipation performance is further improved, and cooling of the brake disc is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake disc, specifically to a brake disc with cooling structure. BACKGROUND

[0002] Generally, a vehicle is stopped by a brake, wherein the brake generates a braking force by utilizing a disc to rotate together with a wheel and causing a friction member to contact the disc on both sides of the disc to generate a friction force. On the other hand, since a high output of an engine is required, and the weight of the vehicle is increased according to the upgrading of the vehicle, the load of the brake is increased during braking, and thus excessive heat is caused by the friction between the brake disc and the friction member. Therefore, thermal deformation of the disc and deterioration of the friction member occur, and as a result, noise, vibration, and harshness (NVH) performance and braking feeling are reduced due to the deformation of the disc and the gradual failure of the friction member. In order to reduce the thermal deformation of the disc, a conventional brake obtains a suitable thermal performance by increasing the size of the disc.

[0003] The utility model with disclosure number CN206320209U proposes a brake disc with double cooling structure, the disc brake with double self-cooling structure involved inhibits thermal deformation and can include a brake disc with double cooling structure, the brake disc includes: a plurality of blades, the blade is arranged between two disc plates and is formed integrally with the brake disc; and a cooling channel and an air passage, the cooling channel and the air passage are formed between the two disc plates to allow air to flow through the cooling channel and the air passage, wherein each of the cooling channels is formed between a plurality of blades, the air passage is formed to be located more inwardly than the plurality of blades with respect to the radial direction of the two disc plates, and the cooling channel and the air passage are in fluid communication with each other. The brake disc can ensure the cooling performance of the disc by configuring the self-cooling structure of the disc to inhibit thermal deformation caused by excessive friction heat during vehicle braking, while reducing the cost and weight of the vehicle compared with the prior art.

[0004] However, the above-mentioned prior art reduces the cost and weight, but the heat dissipation performance is still insufficient, that is, the heat dissipation performance still has room for improvement. Specifically, when the brake disc rotates and brakes, it is in a passive ventilation and heat dissipation state due to its disc shape. During use, there is air flow around the heat dissipation disc, but the amount of internal air flow is low, which leads to low heat dissipation efficiency inside the heat dissipation disc.

[0005] Therefore, the utility model provides a brake disc with cooling structure. SUMMARY

[0006] The utility model aims at solving the problems in the prior art and provides a brake disc with a cooling structure, which has the advantages of further improving the ventilation and heat dissipation performance and is more convenient to manufacture.

[0007] In order to achieve the above object, the utility model is through the following technical scheme to realize: a brake disc with a cooling structure, which comprises an annular disc body, an annular air groove is formed in the inner periphery of the annular disc body, and a plurality of air outlet grooves are uniformly distributed on the outer peripheral wall thereof, a plurality of ventilation holes are formed in the disc surface of the annular disc body, the ventilation holes and the air outlet grooves are in communication with the inner cavity of the annular air groove, a positioning sleeve ring coaxial with the annular disc body is detachably connected in the annular disc body, a rotating sleeve is sleeved on the outside of the positioning sleeve ring, a plurality of air plates are uniformly distributed on the outer peripheral wall of the rotating sleeve, and the free ends of the air plates are opposite to the annular air groove.

[0008] Further, the outer peripheral wall of the positioning sleeve ring is fixedly connected with a positioning plate close to one end, the positioning plate is connected with one side in the annular air groove through bolts, and one side of the positioning plate is fixedly connected with a push plate located at the mouth of the annular air groove.

[0009] Further, the number of the positioning plates is two, and the two positioning plates are uniformly distributed in the circumferential direction of the positioning sleeve ring, one end of the positioning plate is provided with a connecting hole, and one side of the annular disc body is provided with a positioning hole in communication with the annular air groove and opposite to the connecting hole.

[0010] Further, a waist-shaped air passing hole is formed in the positioning plate.

[0011] Further, a bearing is arranged between the rotating sleeve and the positioning sleeve ring.

[0012] Further, the cross section of the air plate is S-shaped.

[0013] Further, a plurality of uniformly distributed heat dissipation holes are formed in the plate surface of the air plate.

[0014] The utility model has the advantages of the following:

[0015] In the utility model, the rotating sleeve coaxial with the annular disc body is connected in the annular disc body through the positioning sleeve ring, then a ring of air plates is fixedly connected on the outer periphery of the rotating sleeve, and one end of the air plate is opposite to the annular air groove formed in the annular disc body, so that when the annular disc body rotates, the rotating sleeve is in a state of static or low-speed free rotation, the air plate is passively pushed to blow air to the annular air groove, the heat dissipation performance of the annular disc body is further improved, and the cooling of the brake disc is accelerated.

[0016] In the utility model, the positioning sleeve ring and the annular air chute are detachably connected through bolts, the cooling structure formed by the sleeve, the positioning ring and the air plate can be separately manufactured, and then is assembled into a complete brake disc, so that the utility model has the advantages of simple manufacture. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the brake disc with the cooling structure of the utility model;

[0018] Figure 2 It is Figure 1 It is a schematic view of the bottom;

[0019] Figure 3 It is a schematic view of the annular disc body and the positioning sleeve ring of the utility model after being separated.

[0020] In the drawing: 1, annular disc body; 11, annular air chute; 12, air outlet chute; 13, ventilation hole; 14, positioning hole; 2, positioning sleeve ring; 21, positioning plate; 211, connecting hole; 212, waist-shaped air passage; 213, push plate; 3, sleeve; 4, air plate; 41, heat dissipation hole; 5, bolt; 6, bearing. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] Please refer to Figures 1 to 3 The utility model provides a technical scheme: a brake disc with a cooling structure, including annular disc body 1, the inner periphery of annular disc body 1 is provided with annular air chute 11 and its outer peripheral wall is provided with the air outlet chute 12 that is evenly distributed in the circumference, the disc surface of this annular disc body 1 is provided with ventilation hole 13, ventilation hole 13 and air outlet chute 12 all and the inner chamber of annular air chute 11 are communicated, wherein, the mouth of annular air chute 11 is provided with a plurality of installation tables, is provided with mounting hole on the installation table, when using, annular disc body 1 is installed on the wheel hub of car through mounting hole.

[0023] In this technical solution, a coaxial positioning collar 2 is detachably connected inside the annular disc 1. The inner cavity of the positioning collar 2 has a clearance function. A rotating sleeve 3 is sleeved on the outside of the positioning collar 2. In a preferred implementation, a bearing 6 is provided between the rotating sleeve 3 and the positioning collar 2, thereby greatly reducing the rotational resistance between the rotating sleeve 3 and the positioning collar 2. A circumferentially evenly distributed air plate 4 is fixedly connected to the outer peripheral wall of the rotating sleeve 3. The free end of the air plate 4 is opposite to the annular air groove 11. When the annular disc 1 rotates at high speed, the rotating sleeve 3 is approximately stationary or at a low speed due to the action of the bearing 6. At this time, the rotation of the annular disc 1 will increase the airflow speed between it and the air plate 4, and this part of the airflow will enter the annular air groove 11. With the cooperation of the ventilation hole 13 and the air outlet groove 12, the heat dissipation of the annular disc 1 will be further accelerated, and the cooling speed will be improved.

[0024] The specific structure for the detachable connection between the annular disc 1 and the positioning collar 2 is that a positioning plate 21 is fixedly connected to one end of the outer peripheral wall of the positioning collar 2. The positioning plate 21 is connected to one side of the annular air groove 11 by bolts 5. In specific implementation, it is preferred that there are two positioning plates 21 and they are evenly distributed around the positioning collar 2. This arrangement can improve the reliability of the connection between the positioning collar 2 and the annular disc 1 and reduce the installation difficulty. One end of the positioning plate 21 is provided with a connecting hole 211, and one side of the annular disc 1 is provided with a positioning hole 14 that communicates with the annular air groove 11 and is opposite to the connecting hole 211. The positioning plate 21 and the annular disc 1 are fastened together by bolts 5 through the positioning hole 14 and the connecting hole 211.

[0025] Furthermore, a lever 213 located at the opening of the annular air duct 11 is fixedly connected to one side of the positioning plate 21. When the annular disc 1 rotates, it can drive the lever 213 to stir the air, thereby accelerating the airflow around the outer periphery of the rotating sleeve 3.

[0026] The positioning plate 21 has a waist-shaped air passage 212. The waist-shaped air passage 212 can reduce weight and accelerate ventilation and heat dissipation.

[0027] In this embodiment, the cross-section of the air deflector 4 is S-shaped. This design allows the airflow passing through the annular disc 1 to accelerate the rotation of the air deflector 4 during vehicle movement, which in turn drives the rotating sleeve 3 to rotate. The accelerated rotation of the rotating sleeve 3 further increases the airflow speed within the annular air groove 11, thereby further improving the cooling speed. In use, evenly distributed heat dissipation holes 41 are provided on the surface of the air deflector 4. The design of the heat dissipation holes 41 not only reduces weight but also accelerates the dissipation of heat absorbed by the air deflector 4 itself.

[0028] Working principle: in use, the process of car running, annular disc body 1 is in the rotating state, the rotating state will be under the action of the surrounding airflow, rotating sleeve 3 will drive the wind plate 4 to push the airflow of annular air chute 11 mouth, so that the airflow accelerates through annular air chute 11, that is, in the non-braking state, the brake disc is in the state of improving the speed of the airflow inside and outside, when the annular disc body 1 is braked, the airflow generated by the wind plate 4 will accelerate the part of the heat to be quickly discharged, greatly improving the efficiency of heat dissipation, when.

[0029] 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 combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A brake disc with cooling structure, comprising a ring-shaped disc body (1), an annular air channel (11) is formed in the inner periphery of the ring-shaped disc body (1), and a plurality of air outlet channels (12) are formed in the outer periphery wall of the ring-shaped disc body (1) and are uniformly distributed in the circumferential direction, and a plurality of ventilation holes (13) are formed in the disc surface of the ring-shaped disc body (1), the ventilation holes (13) and the air outlet channels (12) are both in communication with the inner cavity of the annular air channel (11), characterized in that, The annular disc body (1) is detachably connected with coaxial positioning sleeve ring (2), the outer sleeve of positioning sleeve ring (2) is provided with rotating sleeve (3), the outer peripheral wall of rotating sleeve (3) is fixedly connected with the wind plate (4) that is evenly distributed in circumference, the free end of wind plate (4) is opposite to annular air groove (11).

2. The brake disc with cooling structure according to claim 1, characterized in that: The outer peripheral wall of positioning sleeve ring (2) is fixedly connected with the positioning plate (21) near one end, the positioning plate (21) and one side in annular air groove (11) are connected by bolt (5), one side of positioning plate (21) is fixedly connected with the handle plate (213) located at the mouth of annular air groove (11).

3. A brake disc with cooling structure according to claim 2, characterized in that: The number of positioning plate (21) is two and evenly distributed in circumference relative to positioning sleeve ring (2), one end of positioning plate (21) is provided with connecting hole (211), one side of annular disc body (1) is provided with positioning hole (14) that is communicated with annular air groove (11) and opposite to connecting hole (211).

4. The brake disc with cooling structure according to claim 3, characterized in that: Waist type air hole (212) is formed in positioning plate (21).

5. The brake disc with cooling structure according to claim 1, characterized in that: Bearing (6) is arranged between rotating sleeve (3) and positioning sleeve ring (2).

6. The brake disc with cooling structure according to claim 1, characterized in that: The cross section of wind plate (4) is S type.

7. A brake disc with cooling structure according to claim 6, characterized in that: Uniformly distributed heat dissipation holes (41) are formed in the plate surface of wind plate (4).

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