Disc surface and in-surface brake with forced ventilation cooling function

Abstract

The present application relates to a disc surface and along surface brake with forced ventilation heat dissipation function, a two-way ventilation system is installed on the brake disc, the brake disc is provided with a plurality of ventilation holes communicated with the two-way ventilation system, each ventilation hole discharges air under the action of centrifugal force in the process of brake disc rotation, the two-way ventilation system rotates synchronously with the brake disc when the brake disc rotates uniformly and accelerates, the two-way ventilation system has an air outlet, when the brake disc decelerates, the two-way ventilation system and the brake disc generate a speed difference, and then the two-way ventilation system draws air from the ventilation hole to the air outlet, thereby dissipating heat, the along surface brake trigger device realizes the switching of the trigger state under the push of the airflow, the along surface brake trigger device is connected with the along surface brake, the along surface brake trigger device pushes the along surface brake to brake when being in the trigger state, and the along surface brake trigger device controls the along surface brake to release pressure when being in the disconnected state, so that the brake disc temperature can be quickly reduced and sufficient braking torque can be generated.

Description

Technical Field

[0001] This invention relates to the field of brake technology, and in particular to a disc and edge brake with forced ventilation and heat dissipation function. Background Technology

[0002] The brakes used in current automobiles are generally divided into two types: drum brakes and disc brakes. Drum brakes have high braking force, but their mechanism is complex. Due to their enclosed structure, heat dissipation is difficult, which can easily cause the brake pads to overheat and reduce braking force. Disc brakes have stable braking force, but their braking force is small.

[0003] The existing automobile suspension system includes an axle and an axle head. The axle head rotates inside the axle and is mounted on the axle. The end face of the axle head is used to mount the brake disc and wheel hub. The brake disc and brake pads are prone to overheating after frequent braking, resulting in a reduction in braking force. In order to increase the braking force, a brake pump is often added, which increases the cost. There is a need for a brake that can quickly reduce the temperature of the brake disc and generate sufficient braking torque. Summary of the Invention

[0004] To overcome the technical defects of the existing technology, the present invention provides a disc and edge brake with forced ventilation and heat dissipation function, which can quickly reduce the temperature of the brake disc and generate sufficient braking torque.

[0005] The technical solution adopted in this invention is:

[0006] A disc brake with forced ventilation and heat dissipation function is mounted on the axle and axle head. A brake disc is fixedly mounted on the axle head. The brake includes a brake bracket, a caliper brake, a two-way ventilation system, a surface brake triggering device, and a surface brake. The brake bracket is fixed to the axle. The brake disc has a braking surface. The surface brake is mounted on the brake bracket and rubs against the braking surface. The caliper brake is mounted on the brake bracket and rubs against the end face of the brake disc. The two-way ventilation system is mounted on the brake disc. The brake disc has several ventilation holes communicating with the two-way ventilation system. Each ventilation hole discharges air during brake disc rotation. During uniform and accelerated rotation, the bidirectional ventilation system rotates synchronously with the brake disc. The bidirectional ventilation system has an air outlet. When the brake disc decelerates, a speed difference is generated between the bidirectional ventilation system and the brake disc, which causes the bidirectional ventilation system to draw outside air from the ventilation holes to the air outlet. The surface brake triggering device is installed inside the air outlet. The surface brake triggering device has a triggered state and a disconnected state. The surface brake triggering device switches between triggered and disconnected states under the impetus of airflow. The surface brake triggering device is connected to the surface brake. When the surface brake triggering device is in the triggered state, it pushes the surface brake to brake. When the surface brake triggering device is in the disconnected state, it controls the surface brake to release pressure.

[0007] Preferably, the surface brake includes a braking device and a surface brake drive module. The surface brake drive module is mounted on a brake bracket and includes an output end. The output end is connected to the braking device in a transmission manner. The braking device is mounted on the brake bracket and rubs against the braking surface. The surface brake drive module is connected to a surface brake triggering device.

[0008] Preferably, the brake disc includes a first brake pad and a second brake pad, with the first brake pad and the second brake pad forming a channel for airflow. Both the first brake pad and the second brake pad are provided with ventilation holes, and when the brake disc rotates, the air in each ventilation hole is discharged under centrifugal force.

[0009] Preferably, the first brake pad and the second brake pad are installed using countersunk screws.

[0010] Preferably, the bidirectional ventilation system includes an overrunning clutch, an inertial rotating block, and a suction fan. The inertial rotating block is rotatably mounted on the brake disc. The overrunning clutch is used to limit the rotational speed of the inertial rotating block to be no less than the rotational speed of the brake disc. The brake disc is provided with a fan cavity. The suction fan is mounted on the inertial rotating block. When the rotational speed of the inertial rotating block is faster than that of the brake disc, the suction fan draws outside air from the ventilation hole to the air outlet.

[0011] Preferably, the bidirectional ventilation system further includes a bearing, and the inertial rotating block is rotatably mounted on the brake disc via the bearing.

[0012] Preferably, the surface braking triggering device includes a two-position two-way valve and a trigger switch. The trigger switch is installed inside the air outlet and has a trigger state and an open state. The airflow in the air outlet blows the trigger switch to switch the two-position two-way valve. The two-position two-way valve is connected to the surface braking drive module.

[0013] Preferably, the surface braking drive module is a hydraulic cylinder or a pneumatic cylinder.

[0014] The beneficial effects of this invention are:

[0015] The brake system includes a brake bracket, a caliper brake, a two-way ventilation system, a surface brake triggering device, and a surface brake. The brake bracket is fixed to the axle, and the brake disc has a braking surface. The surface brake is mounted on the brake bracket and rubs against the braking surface. The caliper brake is mounted on the brake bracket and rubs against the end face of the brake disc. The caliper brake is used to brake the end face.

[0016] A two-way ventilation system is installed on the brake disc, which has several ventilation holes communicating with the system. During brake disc rotation, each ventilation hole discharges air under centrifugal force. When the brake disc rotates at a constant speed and accelerates, the two-way ventilation system rotates synchronously with it. The system has an air outlet. When the brake disc decelerates, a speed difference exists between the two-way ventilation system and the brake disc, causing the system to draw outside air from the ventilation holes to the air outlet, thus achieving heat dissipation. A surface brake triggering device is installed inside the air outlet and has trigger and disconnect states. The triggering device switches between triggering states under the impetus of airflow. The surface brake triggering device is connected to the surface brake. When the surface brake triggering device is in the triggered state, it pushes the surface brake to brake. When the surface brake triggering device is in the disengaged state, it controls the surface brake to release pressure. Because the bidirectional ventilation system controls the surface brake triggering device to change from the disengaged state to the triggered state during braking, the surface brake is braked. This achieves automatic braking of the surface brake after the caliper brake is braked, and it can still ensure sufficient ventilation performance of the brake disc during braking, which can quickly reduce the temperature of the brake disc and generate sufficient braking torque. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Fig. 2 This is a cross-sectional view of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Brake disc; 11. Ventilation hole; 12. First brake pad; 13. Second brake pad; 14. Passage;

[0021] 2. Brake bracket;

[0022] 3. Caliper brake; 4. Two-way ventilation system; 41. Air outlet; 42. Overrunning clutch; 43. Inertia slewing block; 44. Suction fan; 45. Bearing;

[0023] 5. Surface braking triggering device;

[0024] 6. Surface brake; 61. Braking device; 62. Surface brake drive module. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Example 1

[0027] like Figs. 1-2 As shown, this embodiment provides a disc brake with forced ventilation and heat dissipation function. The disc brake 6 with forced ventilation and heat dissipation function is installed on the axle and the axle head. The axle head is fixedly mounted with a brake disc 1. The brake includes a brake bracket 2, a caliper brake 3, a bidirectional ventilation system 4, an edge brake triggering device 5, and an edge brake 6. The brake bracket 2 is fixedly mounted on the axle. The brake disc 1 has a braking edge. The edge brake 6 is installed on the brake bracket 2 and rubs against the braking edge. The caliper brake 3 is installed on the brake bracket 2 and rubs against the end face of the brake disc 1. The caliper brake 3 is used to brake the end face.

[0028] A bidirectional ventilation system 4 is installed on the brake disc 1. The brake disc 1 has several ventilation holes 11 that communicate with the bidirectional ventilation system 4. During the rotation of the brake disc 1, each ventilation hole 11 discharges air under the action of centrifugal force. When the brake disc 1 rotates at a constant speed and accelerates, the bidirectional ventilation system 4 rotates synchronously with the brake disc 1. The bidirectional ventilation system 4 has an air outlet 41. When the brake disc 1 decelerates, a speed difference is generated between the bidirectional ventilation system 4 and the brake disc 1, which causes the bidirectional ventilation system 4 to draw outside air from the ventilation holes 11 to the air outlet 41, thereby achieving heat dissipation. A surface brake triggering device 5 is installed inside the air outlet 41. The surface brake triggering device 5 has a trigger state and an off state. In the open state, the surface brake triggering device 5 switches between triggering states under the impetus of airflow. The surface brake triggering device 5 is connected to the surface brake 6. When the surface brake triggering device 5 is in the triggering state, it pushes the surface brake 6 to brake. When the surface brake triggering device 5 is in the open state, it controls the surface brake 6 to release pressure. Since the bidirectional ventilation system 4 controls the surface brake triggering device 5 to change from the open state to the triggering state during braking, the surface brake 6 is braked, realizing the automatic braking of the surface brake 6 after the caliper brake 3 is braked. Moreover, it can still ensure sufficient ventilation performance of the brake disc 1 during braking, which can quickly reduce the temperature of the brake disc 1 and generate sufficient braking torque.

[0029] The surface brake 6 includes a braking device 61 and a surface brake drive module 62. The surface brake drive module 62 is mounted on the brake bracket 2 and includes an output end that is connected to the braking device 61. The braking device 61 is mounted on the brake bracket 2 and rubs against the braking surface. The surface brake drive module 62 is connected to the surface brake triggering device 5, which controls the surface brake drive module 62 to achieve braking and release.

[0030] The brake disc 1 includes a first brake pad 12 and a second brake pad 13. The first brake pad 12 and the second brake pad 13 form a channel 14 for airflow. Both the first brake pad 12 and the second brake pad 13 have ventilation holes 11. When the brake disc 1 rotates, the air in the ventilation holes 11 is discharged under centrifugal force. The first brake pad 12 and the second brake pad 13 are slotted on adjacent sides. In this way, the first brake pad 12 and the second brake pad 13 can form a channel 14 for airflow when they are put together. The first brake pad 12 and the second brake pad 13 are installed by countersunk screws.

[0031] The bidirectional ventilation system 4 includes an overrunning clutch 42, an inertial rotating block 43, a bearing 45, and a suction fan 44. The inertial rotating block 43 is rotatably mounted on the brake disc 1 via the bearing 45. The overrunning clutch 42 is used to limit the rotational speed of the inertial rotating block 43 to be no less than the rotational speed of the brake disc 1. That is, when the vehicle is at a constant speed or accelerating, the overrunning clutch 42 will cause the inertial rotating block 43 to rotate synchronously with the brake disc 1. The brake disc 1 is provided with a fan cavity, and the suction fan 44 is mounted on the inertial rotating block 43. The suction fan 44 rotates synchronously with the inertial rotating block 43. When the rotational speed of block 43 is faster than that of brake disc 1, it draws outside air from ventilation hole 11 to air outlet 41. When the vehicle brakes and decelerates, due to inertia, the inertial rotation of block 43 will continue to rotate at the original speed, which makes the fan continue to rotate. As the rotational speed of brake disc 1 gradually decreases, the air that was originally thrown out from ventilation hole 11 during normal driving is now drawn by the fan from the direction of ventilation hole 11 to the direction of air outlet 41. Due to the action of caliper brake 3, brake pads seal several ventilation holes 11, causing the fan cavity to generate negative pressure due to the Venturi principle, which increases the flow velocity in each ventilation hole 11 and enhances the heat dissipation efficiency.

[0032] The surface braking triggering device includes a two-position two-way valve and a trigger switch. The trigger switch is installed in the air outlet 41 and has a trigger state and an open state. The airflow in the air outlet 41 blows the trigger switch to switch the two-position two-way valve. The two-position two-way valve is connected to the surface braking drive module 62. The surface braking drive module 62 is a hydraulic cylinder or a pneumatic cylinder. The two-position two-way valve controls the action of the surface braking drive module 62 under the action of the trigger switch.

[0033] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A disc-type and surface-mounted brake with forced ventilation and heat dissipation function, mounted on an axle and an axle head, wherein a brake disc is fixedly mounted on the axle head, characterized in that: The brake system includes a brake bracket, a caliper brake, a two-way ventilation system, a surface brake triggering device, and a surface brake. The brake bracket is fixed to the axle. The brake disc has a braking surface. The surface brake is mounted on the brake bracket and rubs against the braking surface. The caliper brake is mounted on the brake bracket and rubs against the end face of the brake disc. The two-way ventilation system is mounted on the brake disc. The brake disc has several ventilation holes communicating with the two-way ventilation system. Each ventilation hole discharges air during brake disc rotation. When the brake disc rotates at a constant speed and accelerates, the two-way ventilation system rotates synchronously with the brake disc. The two-way ventilation system has an air outlet. When the brake disc decelerates, a speed difference is generated between the two-way ventilation system and the brake disc, causing the two-way ventilation system to draw outside air from the ventilation holes to the air outlet. The surface braking triggering device is installed inside the air outlet. The surface braking triggering device has a triggered state and an untriggered state. The surface braking triggering device switches between the triggered and untriggered states under the impetus of airflow. The surface braking triggering device is connected to the surface brake. When the surface braking triggering device is in the triggered state, it pushes the surface brake to brake. When the surface braking triggering device is in the untriggered state, it controls the surface brake to release pressure. The bidirectional ventilation system includes an overrunning clutch, an inertial rotating block, and a suction fan. The inertial rotating block is rotatably mounted on the brake disc. The overrunning clutch is used to limit the rotation speed of the inertial rotating block to be no less than the rotation speed of the brake disc. The brake disc is provided with a fan cavity. The suction fan is mounted on the inertial rotating block. When the rotation speed of the inertial rotating block is faster than that of the brake disc, the suction fan draws outside air from the ventilation hole to the air outlet.

2. The disc and edge brake with forced ventilation and heat dissipation function according to claim 1, characterized in that, The surface brake includes a braking device and a surface brake drive module. The surface brake drive module is mounted on a brake bracket and includes an output end. The output end is connected to the braking device. The braking device is mounted on the brake bracket and rubs against the braking surface. The surface brake drive module is connected to a surface brake triggering device.

3. The disc and edge brake with forced ventilation and heat dissipation function according to claim 1, characterized in that, The brake disc includes a first brake pad and a second brake pad, with the first brake pad and the second brake pad forming a channel for airflow. Both the first brake pad and the second brake pad have ventilation holes, and when the brake disc rotates, the air in each ventilation hole is discharged under centrifugal force.

4. The disc and edge brake with forced ventilation and heat dissipation function according to claim 3, characterized in that, The first brake pad and the second brake pad are installed using countersunk screws.

5. The disc and edge brake with forced ventilation and heat dissipation function according to claim 1, characterized in that, The bidirectional ventilation system also includes bearings, and the inertial rotating block is rotatably mounted on the brake disc via the bearings.

6. The disc and edge brake with forced ventilation and heat dissipation function according to claim 1, characterized in that, The surface braking triggering device includes a two-position two-way valve and a trigger switch. The trigger switch is installed inside the air outlet and has a trigger state and an open state. The airflow in the air outlet blows the trigger switch to switch the two-position two-way valve. The two-position two-way valve is connected to the surface braking drive module.

7. The disc and edge brake with forced ventilation and heat dissipation function according to claim 2, characterized in that, The surface braking drive module is a hydraulic cylinder or a pneumatic cylinder.

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