Rivet fastening type brake disc

Abstract

The utility model discloses a rivet fastening type brake disc which comprises a disc body and a disc hub, a connecting base is arranged on the front wall of the disc body, and the disc hub is riveted to the end, away from the disc body, of the connecting base through a plurality of sets of riveting nails. According to the utility model, the connecting seat is arranged on the front wall of the disc body, the disc hub is sleeved on the outer wall of the connecting seat, and the disc hub and the connecting seat are riveted together through the plurality of groups of riveting nails, so that the disc hub and the disc body are connected into a whole, the connection safety is greatly improved through the riveting mode of the riveting nails, and when the disc body needs to be replaced, a drill bit is used for drilling off the riveting nails; the multiple sets of reinforcing ribs are arranged in the disc hub, the structural strength of the disc hub can be greatly improved, the splines and the key grooves are formed between the disc hub and the connecting base, the torque borne by riveting nails during braking is greatly reduced through connection of the splines and the key grooves, and the service life is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially rivet fastening type brake disc. BACKGROUND

[0002] Disc brake has become the mainstream of current automobile brake system, because the brake disc of disc brake is exposed in the air, has excellent heat dissipation, when the vehicle is in high speed state and does urgent brake or brakes for many times in short time, can obtain better brake effect, to improve the safety of vehicle.

[0003] Most automobile brake discs are integral structure, namely the disc body and hub of brake disc are integral structure, so there is certain defect, because the disc body in brake disc is friction component, needs to be replaced after long time use due to wear, because the existing brake disc is integral structure, thus needs to replace the whole brake disc, and the maintenance and replacement cost is higher, so more technology proposes split type brake disc, disc body and hub are in split shape, are fixedly connected through screw, but in actual application, although spring washer and other anti-loosening devices are arranged, there is still certain loosening risk in threaded connection under long time use, therefore, the utility model provides a rivet fastening type brake disc to solve the above problems. SUMMARY

[0004] The utility model discloses a rivet fastening type brake disc which is provided to solve the problems in the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a rivet fastening type brake disc, comprising a disc body and a hub, the disc body is provided with a connecting seat on the front wall, the hub is riveted on the end of the connecting seat away from the disc body through a plurality of riveting nails, the hub is composed of a circular ring and a front plate arranged on the front wall of the circular ring, the plurality of riveting nails are arranged between the connecting seat and the circular ring, the plurality of riveting nails are distributed in a circumferential equidistribution manner with the axis of the connecting seat as the center, a supporting structure for enhancing the structural strength of the hub is arranged between the circular ring and the front plate, a connecting reinforcing structure for increasing the interception strength is arranged between the circular ring and the connecting seat, and an auxiliary structure for improving the heat dissipation effect and increasing the brake friction is arranged on the inner wall of the disc body and located at the periphery of the connecting seat.

[0006] Further description of the above technical scheme is as follows:

[0007] The connecting reinforcing structure comprises a plurality of grooves and a plurality of key grooves, the plurality of grooves are arranged on the circumferential outer wall of the circular ring and located at the connecting position of the circular ring and the front cover, the inner side wall of the circular ring is recessed towards the inside of the circular ring through the plurality of grooves to form a spline, the plurality of key grooves are arranged on the connecting seat and located at the end away from the disc body, and the plurality of splines respectively abut against the inner side wall of one group of key grooves.

[0008] As a further description of the above technical solutions:

[0009] The rivet consists of a rivet rod and a first rivet head and a second rivet head arranged at the axial ends of the rivet rod, a plurality of groups of riveting holes are arranged between the circular ring and the connecting seat and the axial center of the riveting holes is perpendicular to the axial center line of the connecting seat, the plurality of groups of riveting holes are circumferentially equidistributed with the axial center of the connecting seat as the center, a first counterbore is arranged at one end of the riveting hole towards the circumferential outer wall of the circular ring, a second counterbore is arranged at one end of the riveting hole towards the inner side wall of the connecting seat, the rivet rod is arranged on the inner side wall of the riveting hole and the first rivet head is arranged in the first counterbore and the second rivet head is arranged in the second counterbore.

[0010] As a further description of the above technical solutions:

[0011] The rivet is any one of a stainless steel rivet and a titanium alloy rivet.

[0012] As a further description of the above technical solutions:

[0013] The support structure comprises a plurality of groups of reinforcing ribs, the plurality of groups of reinforcing ribs are fixedly connected between the rear wall of the front plate and the inner side wall of the circular ring in the hub, and the plurality of groups of reinforcing ribs are circumferentially equidistributed with the axial center line of the hub as the center.

[0014] As a further description of the above technical solutions:

[0015] The auxiliary structure comprises a plurality of groups of heat dissipation holes, the plurality of groups of heat dissipation holes are arranged in the inner wall of the disc body in a front-to-back through manner, and the axial center line of the heat dissipation hole is arranged at an angle with the axial center line of the disc body.

[0016] As a further description of the above technical solutions:

[0017] The inner diameter of the circular ring is consistent with the outer diameter of the connecting seat, and the circular ring is connected to the circumferential outer wall of the connecting seat.

[0018] The utility model has the advantages of the following beneficial effects:

[0019] 1. Compared with the prior art, the rivet fastening type brake disc sets a connecting seat on the front wall of the disc body, sets the hub on the outer wall of the connecting seat, and rivets the hub and the connecting seat together through a plurality of groups of rivets, so that the hub and the disc body are connected as a whole, the connection safety is greatly improved through the riveting form, and when the disc body needs to be replaced, the rivets can be drilled out by using a drill bit.

[0020] 2. Compared with the prior art, the rivet fastening type brake disc is provided with a plurality of groups of reinforcing ribs in the hub, the structural strength of the hub can be greatly improved, a spline and a key groove are arranged between the hub and the connecting seat, the torque borne by the rivets during braking is greatly reduced through the connection of the spline and the key groove, and the service life is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The whole structure schematic view of the rivet fastening type brake disc is provided by the utility model;

[0022] Figure 2 The disc hub back structure schematic view of the rivet fastening type brake disc is provided by the utility model;

[0023] Figure 3 The disc hub internal structure side partial sectional view of the rivet fastening type brake disc is provided by the utility model;

[0024] Figure 4 The disc body structure schematic view of the rivet fastening type brake disc is provided by the utility model;

[0025] Figure 5 The disc hub back structure schematic view of the rivet fastening type brake disc is provided by the utility model; Figure 4 The A-A direction partial sectional view of the rivet fastening type brake disc is provided by the utility model;

[0026] Figure 6 The B-B direction partial sectional view of the rivet fastening type brake disc is provided by the utility model; Figure 4

[0027] Figure 7 The disc hub and connecting seat riveting side partial sectional view when riveting of the rivet fastening type brake disc is provided by the utility model;

[0028] Figure 8 The riveting nail structure schematic view of the rivet fastening type brake disc is provided by the utility model.

[0029] Legend:

[0030] 1, disc body; 2, disc hub; 3, connecting seat; 4, riveting nail; 401, rivet rod; 402, first rivet head; 403, second rivet head; 5, recess; 501, spline; 6, heat dissipation hole; 7, reinforcing rib; 8, riveting hole; 801, first counterbore; 802, second counterbore; 9, keyway. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Refer to Figures 1 to 8 ​The riveted brake disc provided by this utility model includes a disc body 1 and a disc hub 2. A connecting seat 3 is provided on the front wall of the disc body 1. The disc hub 2 is riveted to the end of the connecting seat 3 away from the disc body 1 by multiple sets of rivets 4. The connecting seat 3 and the disc hub 2 are riveted together by multiple sets of rivets 4, so that the disc hub 2 and the disc body 1 form an integral whole. The riveting and fixing method by rivets 4 greatly improves the connection safety.

[0033] To facilitate riveting, the inner diameter of the ring matches the outer diameter of the connecting seat 3. The ring is connected to the outer circumference of the connecting seat 3. The hub 2 consists of the ring and a front plate disposed on the front wall of the ring. Multiple sets of rivets 4 are disposed between the connecting seat 3 and the ring. The multiple sets of rivets 4 are evenly distributed circumferentially with the axis of the connecting seat 3 as the center. Each rivet 4 consists of a rivet rod 401 and a first rivet head 402 and a second rivet head 403 disposed at both ends of the axial direction of the rivet rod 401. Multiple sets of riveting holes 8 are disposed between the ring and the connecting seat 3 with the axis perpendicular to the axis of the connecting seat 3. The multiple sets of rivet holes 8 are evenly distributed circumferentially with the axis of the connecting seat 3 as the center. A first countersunk hole 801 is provided at the end of the rivet hole 8 facing the outer circumference of the ring, and a second countersunk hole 802 is provided at the end of the rivet hole 8 facing the inner side wall of the connecting seat 3. The rivet 401 is set on the inner wall of the rivet hole 8, and the first rivet head 402 is located inside the first countersunk hole 801 and the second rivet head 403 is located inside the second countersunk hole 802. The rivet 4 is either a stainless steel rivet or a titanium alloy rivet. It is an assembly type. The ring of the disc hub 2 is placed on the end of the connecting seat 3 away from the disc body 1. In the initial state, the rivet 4 consists of the rivet 401 and the second rivet head 403. After the rivet 4 is inserted into the rivet hole 8 from the inside of the connecting seat 3, the first rivet head 402 is riveted out at the end of the rivet 401 away from the second rivet head 403 by the equipment. The ring and the connecting seat 3 are riveted and fixed together by the first rivet head 402 and the second rivet head 403. The setting of the first countersunk hole 801 and the second countersunk hole 802 can avoid the first rivet head 402 and the second rivet head 403 being exposed.

[0034] To improve the structural strength of the disc hub 2, a support structure is provided between the ring and the front plate to enhance the structural strength of the disc hub 2. The support structure includes multiple sets of reinforcing ribs 7, which are fixedly connected between the rear wall of the front plate and the inner wall of the ring in the disc hub 2. The multiple sets of reinforcing ribs 7 are evenly distributed in a circle with the center line of the disc hub 2 as the center. By supporting the inner wall of the ring and the rear wall of the front plate with multiple sets of reinforcing ribs 7, the structural strength of the disc hub 2 is effectively improved and the service life of the brake disc is increased.

[0035] To improve the service life of the rivet 4, a connection reinforcement structure for increasing interception strength is provided between the ring and the connecting seat 3. The connection reinforcement structure includes a groove 5 and multiple sets of keyways 9. The multiple sets of grooves 5 are all located on the outer circumference of the ring and at the connection between the ring and the front cover. The inner sidewall of the ring is recessed towards the inside of the ring through the multiple sets of grooves 5 to form splines 501. The multiple sets of keyways 9 are all located on the connecting seat 3 and are all located at the end near the connecting seat 3 away from the disc body 1. The multiple sets of splines 501 abut against the inner sidewall of a set of keyways 9 respectively. The groove 5 on the disc hub 2 is formed by stamping using common stamping equipment. After stamping out the groove 5, the inner sidewall of the disc hub 2 is correspondingly formed with splines 501 protruding towards the inside of the ring. When the disc hub 2 is connected to the disc body 1, the multiple sets of splines 501 are inserted into the inside of a set of keyways 9 respectively, thereby effectively resisting the rotational torque during braking, preventing the rivet rod 401 of the rivet 4 from being subjected to excessive torque and breaking, and effectively improving the service life of the rivet 4.

[0036] To enhance braking performance and heat dissipation, an auxiliary structure is provided on the inner wall of the disc body 1 and around the connecting seat 3 to improve heat dissipation and increase braking friction. The auxiliary structure includes multiple sets of heat dissipation holes 6, which are arranged in a continuous manner on the inner wall of the disc body 1. The axis of the heat dissipation holes 6 is set at an angle to the axis of the disc body 1. The multiple sets of inclined heat dissipation holes 6 allow air to pass through the heat dissipation holes 6 during vehicle operation to remove heat from the disc body 1. At the same time, the heat dissipation holes 6 increase the surface roughness of the disc body 1, effectively improving braking friction.

[0037] Working principle: The connecting seat 3 and the disc hub 2 are riveted together by multiple sets of rivets 4, making the disc hub 2 and the disc body 1 a whole. The riveting and fixing method of the rivets 4 greatly improves the connection safety. During assembly, the ring of the disc hub 2 is placed on the end of the connecting seat 3 away from the disc body 1. The rivet 4 initially consists of a rivet rod 401 and a second rivet head 403. After the rivet 4 is inserted into the riveting hole 8 from inside the connecting seat 3, the first rivet head 402 is riveted out at the end of the rivet rod 401 away from the second rivet head 403 by the equipment. The first rivet head 402 and the second rivet head 403 are riveted and fixed together by the first rivet head 402 and the second rivet head 403. The setting of the first countersunk hole 801 and the second countersunk hole 802 can prevent the first rivet head 402 and the second rivet head 403 from protruding. Rib 7 supports the inner wall of the ring and the rear wall of the front plate, effectively improving the structural strength of the disc hub 2 and increasing the service life of the brake disc. The groove 5 on the disc hub 2 is formed by stamping using common stamping equipment. After stamping out the groove 5, the inner wall of the disc hub 2 forms a spline 501 that protrudes into the ring. When the disc hub 2 is connected to the disc body 1, multiple sets of splines 501 are inserted into a set of keyways 9, thereby effectively resisting the rotational torque during braking and preventing the rivet rod 401 of the rivet 4 from bearing too much torque and breaking, thus effectively increasing the service life of the rivet 4. Multiple sets of inclined heat dissipation holes 6 allow air to pass through the heat dissipation holes 6 to remove the heat from the disc body 1 when the vehicle is in motion. At the same time, the heat dissipation holes 6 increase the surface roughness of the disc body 1, effectively improving the braking friction.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A riveted brake disc, characterized in that: The device includes a disc body (1) and a disc hub (2). The front wall of the disc body (1) is provided with a connecting seat (3). The disc hub (2) is riveted to the end of the connecting seat (3) away from the disc body (1) by multiple sets of rivets (4). The disc hub (2) is composed of a ring and a front plate provided on the front wall of the ring. Multiple sets of rivets (4) are provided between the connecting seat (3) and the ring. Multiple sets of rivets (4) are distributed in a circumferentially evenly around the axis of the connecting seat (3). A support structure for enhancing the structural strength of the disc hub (2) is provided between the ring and the front plate. A connection reinforcement structure for increasing the interception strength is provided between the ring and the connecting seat (3). An auxiliary structure for improving heat dissipation and increasing braking friction is provided on the inner wall of the disc body (1) and outside the connecting seat (3).

2. The riveted brake disc according to claim 1, characterized in that: The connection enhancement structure includes a groove (5) and multiple sets of keyways (9). The multiple sets of grooves (5) are all located on the outer wall of the circumference of the ring and at the connection between the ring and the front cover. The inner wall of the ring is recessed towards the inside of the ring through the multiple sets of grooves (5) to form splines (501). The multiple sets of keyways (9) are all located on the connecting seat (3) and are all located at the end near the connecting seat (3) away from the disk body (1). The multiple sets of splines (501) abut against the inner wall of a set of keyways (9) respectively.

3. The riveted brake disc according to claim 1, characterized in that: The rivet (4) consists of a rivet rod (401) and a first rivet head (402) and a second rivet head (403) located at both ends of the axial direction of the rivet rod (401). Multiple sets of rivet holes (8) with the axis perpendicular to the axis of the connecting seat (3) are provided between the ring and the connecting seat (3). The multiple sets of rivet holes (8) are evenly distributed in a circle with the axis of the connecting seat (3) as the center. A first countersunk hole (801) is provided at one end of the rivet hole (8) facing the outer wall of the ring. A second countersunk hole (802) is provided at one end of the rivet hole (8) facing the inner wall of the connecting seat (3). The rivet rod (401) is located on the inner wall of the rivet hole (8), and the first rivet head (402) is located inside the first countersunk hole (801) and the second rivet head (403) is located inside the second countersunk hole (802).

4. The riveted brake disc according to claim 1, characterized in that: The rivet (4) is either a stainless steel rivet or a titanium alloy rivet.

5. The riveted brake disc according to claim 1, characterized in that: The supporting structure includes multiple sets of reinforcing ribs (7), which are fixedly connected between the rear wall of the front plate and the inner wall of the ring in the hub (2). The multiple sets of reinforcing ribs (7) are evenly distributed in a circle with the hub (2) axis as the center.

6. The riveted brake disc according to claim 1, characterized in that: The auxiliary structure includes multiple sets of heat dissipation holes (6), which are arranged in a through-type manner on the inner wall of the disk body (1). The center line of the heat dissipation hole (6) is set at an angle to the center line of the disk body (1).

7. The riveted brake disc according to claim 1, characterized in that: The inner diameter of the ring matches the outer diameter of the connecting seat (3), and the inner ring is connected to the outer circumference of the connecting seat (3).

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