Vehicle brake drum

Abstract

The utility model discloses a vehicle brake drum which comprises a drum body and a shell, the inner side face of the drum body is used for braking, reinforcing ribs and spiral ribs are arranged on the outer side face of the drum body, a flow guide groove is formed in the inner side face of the drum body, the shell is arranged outside the drum body in a sleeved mode and used for protecting the drum body, and a flow guide plate is arranged on the outer side face of the shell. The drum body is sleeved with the shell, the shell is used for protecting the drum body and can resist corrosion and dissipate heat, the inner side face of the drum body is used for braking, the flow guide groove is formed in the inner side face of the drum body, the flow guide groove and the inner side face of the ring part are arranged at a certain angle, and the flow guide groove is used for guiding air in the drum body to flow and can accelerate air flow. Furthermore, a flow guide plate is arranged outside the shell, a certain angle is formed between the flow guide plate and the outer side face of the shell, and the flow guide plate is used for guiding flow, so that air flow can be accelerated, and heat dissipation is further accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle brakes, in particular to a vehicle brake drum. Background Art

[0002] The brake drum is the main brake component in the vehicle's braking system. When the car brakes, the braking force is generated by the friction between the brake pads and the inner wall of the brake drum. The inner wall of the brake drum and the brake pads will generate heat during the friction process. During the friction process and after the friction stops, different parts of the brake drum will also experience alternating hot and cold conditions. This requires the brake drum to have good heat dissipation. In addition, the brake drum is exposed to the outside, so it also needs to have good corrosion resistance.

[0003] Existing brake drums are generally made of cast iron materials with poor heat dissipation performance. The heat generated by friction inside the brake drum during braking is easy to accumulate together. The internal cavity is relatively closed, and air is difficult to flow, which cannot accelerate the heat dissipation. The heat accumulation can easily damage the brake drum. At the same time, the brake drum is connected to the wheel and generally needs to be exposed to the outside. The water vapor in the air will corrode the cast iron and affect the service life of the brake drum. Utility Model Content

[0004] The purpose of the utility model is to provide a vehicle brake drum to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A vehicle brake drum comprising

[0007] A drum body, wherein the inner side of the drum body is used for braking, the outer side of the drum body is provided with reinforcing ribs and spiral ribs, and the inner side of the drum body is provided with a guide groove;

[0008] The shell is sleeved on the outside of the drum body and is used to protect the drum body. The outer side of the shell is provided with a guide plate.

[0009] As a further solution of the utility model: the drum body includes a drum body end, a drum body transition portion and a drum body ring portion, the drum body end, the drum body transition portion and the drum body ring portion are integrally formed, a plurality of mounting holes b are provided on the drum body end, a plurality of reinforcing ribs are arranged around the drum body transition portion, two hoops are symmetrically arranged on the outer side surface of the drum body ring portion, and a plurality of spiral ribs are provided between the two hoops.

[0010] As a further solution of the utility model: a plurality of guide grooves are arranged around the inner side surface of the drum body ring portion, and the guide grooves are arranged obliquely on the inner side surface of the drum body ring portion.

[0011] As a further solution of the utility model: the two hoops are both sleeved and fixed on the drum body ring portion, and a plurality of spiral ribs are arranged around the outer side of the drum body ring portion corresponding to the middle position of the two hoops, and the two ends of the spiral ribs are respectively connected and fixed to the two hoops, and the spiral ribs are obliquely arranged on the outer side of the drum body ring portion.

[0012] As a further solution of the utility model: a plurality of limiting protrusions are arranged around the outer side surface of the drum body ring portion.

[0013] As a further solution of the utility model: the shell includes a shell end, a shell transition portion and a shell ring portion, the shell end, the shell transition portion and the shell ring portion are integrally formed, and are arranged one-to-one with the drum body end, the drum body transition portion and the drum body ring portion of the drum body, a mounting hole a corresponding to the mounting hole b is opened on the shell end, and a plurality of guide plates are arranged on the shell transition portion and the shell ring portion.

[0014] As a further solution of the utility model: a side of the inner side surface of the shell ring portion corresponding to the side of the hoop is provided with a hoop groove, a side of the inner side surface of the shell ring portion corresponding to the side of the limiting protrusion is provided with a limiting groove, and a side of the inner side surface of the shell transition portion corresponding to the side of the reinforcing rib is provided with a reinforcing rib groove.

[0015] As a further solution of the utility model: the front end of the guide plate is connected to the front end of the drum body transition portion, and the rear end of the guide plate extends to the rear end of the shell ring portion, and the guide plate is obliquely arranged on the shell transition portion and the shell ring portion.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the utility model, the shell is sleeved on the outside of the drum body, the shell is used to protect the drum body, the inner side of the drum body is used for braking, the shell is made of aluminum-titanium alloy with good heat dissipation performance, corrosion resistance, good heat conduction performance and low density, and the drum body is made of cast iron material with strong wear resistance. The shell is sleeved on the outside of the drum body, and the drum body is protected from corrosion by the shell, while absorbing the heat generated by the friction of the drum body due to braking and accelerating the heat dissipation outward through the outer wall of the shell. This design can enhance the corrosion resistance and heat dissipation performance of the drum body. At the same time, the shell is made of aluminum-titanium alloy with low density, which is relatively light and is conducive to the lightweight design and manufacturing of vehicles;

[0018] 2. In the utility model, the hoop sleeve is sleeved on the drum body ring part, which can reinforce the drum body and improve the structural strength of the drum body. At the same time, when the drum body is broken, the hoop sleeve can effectively prevent the fragments from collapsing and splashing, thereby improving the safety of braking. A spiral rib is arranged between the two hoops. The spiral rib is used in conjunction with the hoop sleeve to form a grid-like structure on the drum body ring part, further enhancing the structural strength of the drum body. At the same time, the spiral rib arranged obliquely can be stressed in both the horizontal and longitudinal directions at the same time, thereby improving the effect of improving the structural strength.

[0019] 3. In the utility model, the guide groove is arranged at a certain angle to the inner side surface of the ring portion. In actual manufacturing and use, the corresponding angle can be adjusted according to the diameter of the inner ring of the drum body and the width of the inner ring. The guide groove is used to guide the flow of air inside the drum body and can accelerate the air flow, thereby accelerating the heat dissipation inside the drum body and avoiding damage to the drum body due to excessive temperature. Furthermore, a guide plate is arranged outside the shell, and the guide plate is also arranged at a certain angle to the outer side surface of the shell. The guide plate is used to guide air, which can accelerate the air flow and further accelerate the heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic structural diagram of the utility model from the first perspective.

[0022] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.

[0023] Figure 3 It is a schematic diagram of the structure after the shell and the drum body are separated in the utility model.

[0024] Figure 4 This is a schematic structural diagram of the drum body in the utility model from a first perspective.

[0025] Figure 5 This is a schematic structural diagram of the drum body of the utility model from a second viewing angle.

[0026] Figure 6 This is a schematic structural diagram of the shell in the utility model from the first perspective.

[0027] Figure 7 This is a schematic structural diagram of the shell in the utility model from a second viewing angle.

[0028] Notes on figure numbers: 1-shell, 11-shell end, 12-mounting hole a, 13-shell transition portion, 14-shell ring portion, 15-guide plate, 16-hoop groove, 17-limiting groove, 18-reinforcing rib groove, 2-drum body, 21-drum body end, 22-mounting hole b, 23-drum body transition portion, 24-reinforcing rib, 25-drum body ring portion, 26-hoop, 27-spiral rib, 28-limiting protrusion, 29-guide groove. DETAILED DESCRIPTION

[0029] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0030] Example 1

[0031] See also Figures 1 to 3 In an embodiment of the utility model, a vehicle brake drum includes a shell 1 and a drum body 2. The shell 1 is sleeved on the outside of the drum body 2. The shell is used to protect the drum body, and the inner side of the drum body is used for braking. In this embodiment, the shell is made of an aluminum-titanium alloy with good heat dissipation performance, corrosion resistance, good thermal conductivity and low density. The drum body is made of cast iron material with strong wear resistance. The shell is sleeved on the outside of the drum body, and the drum body is protected from corrosion by the shell. At the same time, the heat generated by the drum body due to braking friction is absorbed and the heat is accelerated to the outside through the outer wall of the shell. This design can enhance the corrosion resistance and heat dissipation performance of the drum body. At the same time, the shell is made of an aluminum-titanium alloy with low density, which is relatively light and is conducive to the lightweight design and manufacturing of vehicles.

[0032] Please refer to 4-5, the drum body 2 includes a drum body end 21, a drum body transition part 23 and a drum body ring part 25, the drum body end 21, the drum body transition part 23 and the drum body ring part 25 are integrally formed, a plurality of mounting holes b22 are provided on the drum body end 21, the mounting holes b22 are used to mount the drum body on the wheel, a plurality of reinforcing ribs 24 are arranged around the drum body transition part 23, the reinforcing ribs 24 are used to improve the structural strength of the drum body, and two hoops 26 are symmetrically arranged on the outer side of the drum body ring part 25;

[0033] The two hoops 26 are both sleeved and fixed on the drum body ring part 25, and a plurality of spiral ribs 27 are arranged around the middle position of the two hoops 26 on the outer side of the drum body ring part 25, and the two ends of the spiral ribs 27 are respectively connected and fixed to the two hoops 26, and the spiral ribs 27 are arranged obliquely on the outer side of the drum body ring part 25. In this embodiment, the hoop 26 is made of aluminum material or iron material, and the hoop is sleeved on the drum body ring part, which can reinforce the drum body and improve the structural strength of the drum body. At the same time, when the drum body is broken, the hoop can effectively prevent the fragments from collapsing and splashing, thereby improving the safety of braking. In this embodiment, spiral ribs are arranged between the two hoops, and the spiral ribs are used in combination with the hoop to form a grid structure on the drum body ring part, further enhancing the structural strength of the drum body. At the same time, the obliquely arranged spiral ribs can be subjected to force in both the horizontal and longitudinal directions at the same time, and the effect of improving the structural strength is better.

[0034] A number of limiting protrusions 28 are arranged around the outer surface of the drum body ring portion 25, and the limiting protrusions 28 are used to position the drum body and the shell. A number of guide grooves 29 are arranged around the inner side surface of the drum body ring portion 25. The guide grooves 29 are arranged obliquely on the inner side surface of the drum body ring portion 25, and the guide grooves and the inner side surface of the ring portion are arranged at a certain angle. In actual manufacturing and use, the corresponding angles can be adjusted according to the diameter of the inner ring of the drum body and the width of the inner ring. The guide grooves are used to guide the flow of air inside the drum body and can accelerate the flow of air, thereby accelerating the heat dissipation inside the drum body and avoiding damage to the drum body due to excessive temperature.

[0035] Example 2

[0036] See also Figures 6-7 On the basis of Example 1, the housing 1 includes a housing end 11, a housing transition portion 13 and a housing ring portion 14, which are integrally formed and arranged one-to-one with the drum body end 21, the drum body transition portion 23 and the drum body ring portion 25 of the drum body 2. A mounting hole a12 corresponding to the mounting hole b22 is opened on the housing end 11, and the mounting hole a12 and the mounting hole b22 are used in conjunction with each other for mounting the brake drum and the wheel;

[0037] A plurality of guide plates 15 are arranged on the shell transition portion 13 and the shell ring portion 14. The guide plates 15 are used to guide air, accelerate air flow, and accelerate heat dissipation. The front end of the guide plate 15 is connected to the front end of the drum body transition portion 23, and the rear end of the guide plate 15 extends to the rear end of the shell ring portion 14. The guide plates 15 are arranged obliquely on the shell transition portion 13 and the shell ring portion 14.

[0038] A hoop groove 16 is provided on the inner side surface of the shell ring portion 14 corresponding to the side of the hoop 26. When the shell is sleeved on the drum body, the hoop 26 is embedded in the hoop groove 16. A limiting groove 17 is provided on the inner side surface of the shell ring portion 14 corresponding to the side of the limiting protrusion 28. The limiting protrusion 28 is used in conjunction with the limiting groove 17 to position the drum body and the shell. The limiting protrusion 28 is embedded in the limiting groove. A reinforcing rib groove 18 is provided on the inner side surface of the shell transition portion 13 corresponding to the side of the reinforcing rib 24. After the shell and the drum body are fixed, the reinforcing rib 24 is embedded in the reinforcing rib groove to ensure that the drum body and the shell are tightly connected, which is beneficial to the heat dissipation of the drum body and improves the structural strength of the drum body.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vehicle brake drum, characterized in that: include A drum body, wherein the inner side of the drum body is used for braking, the outer side of the drum body is provided with reinforcing ribs and spiral ribs, and the inner side of the drum body is provided with a guide groove; The shell is sleeved on the outside of the drum body and is used to protect the drum body. The outer side of the shell is provided with a guide plate.

2. The vehicle brake drum according to claim 1, characterized in that: The drum body includes a drum body end, a drum body transition part and a drum body ring part. The drum body end, the drum body transition part and the drum body ring part are integrally formed. A plurality of mounting holes b are arranged on the drum body end. A plurality of reinforcing ribs are arranged around the drum body transition part. Two hoops are symmetrically arranged on the outer side surface of the drum body ring part, and a plurality of spiral ribs are arranged between the two hoops.

3. The vehicle brake drum according to claim 2, characterized in that: A plurality of guide grooves are arranged around the inner side surface of the drum body ring portion, and the guide grooves are arranged obliquely on the inner side surface of the drum body ring portion.

4. The vehicle brake drum according to claim 3, characterized in that: The two hoops are both sleeved and fixed on the drum body ring portion, and a plurality of spiral ribs are arranged around the outer surface of the drum body ring portion corresponding to the middle position of the two hoops, and the two ends of the spiral ribs are respectively connected and fixed to the two hoops, and the spiral ribs are obliquely arranged on the outer surface of the drum body ring portion.

5. The vehicle brake drum according to claim 4, characterized in that: A plurality of limiting protrusions are arranged around the outer side surface of the drum body ring portion.

6. The vehicle brake drum according to claim 5, characterized in that: The shell includes a shell end, a shell transition portion and a shell ring portion. The shell end, the shell transition portion and the shell ring portion are integrally formed and are arranged one-to-one with the drum body end, the drum body transition portion and the drum body ring portion of the drum body. A mounting hole a corresponding to the mounting hole b is opened on the shell end, and a plurality of guide plates are arranged on the shell transition portion and the shell ring portion.

7. The vehicle brake drum according to claim 6, characterized in that: A hoop groove is provided on the inner side surface of the shell ring portion corresponding to the side of the hoop, a limiting groove is provided on the inner side surface of the shell ring portion corresponding to the side of the limiting protrusion, and a reinforcing rib groove is provided on the inner side surface of the shell transition portion corresponding to the side of the reinforcing rib.

8. The vehicle brake drum according to claim 7, characterized in that: The front end of the guide plate is connected to the front end of the drum transition portion, and the rear end of the guide plate extends to the rear end of the shell ring portion. The guide plate is obliquely arranged on the shell transition portion and the shell ring portion.

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