A vehicle driving brake device with auxiliary braking function

Abstract

The present invention discloses a vehicle driving brake device with auxiliary braking function. The present invention is provided with an electromagnetic winding and a brake disc, so that when the temperature of the brake disc is too high, resulting in a decrease in the braking ability of the vehicle, the electromagnetic winding can provide auxiliary braking to avoid brake failure and vehicle accidents. The provided driving motor and lead screw enable the distance between the electromagnetic winding and the brake disc to be adjusted, thereby facilitating the control of the auxiliary braking ability of the electromagnetic winding on the brake disc, enhancing the controllability of the auxiliary braking, and ensuring the safety of the auxiliary braking. The provided anti-lock braking mechanism can actively use the anti-lock braking mechanism to achieve tire braking when the vehicle tire is locked, thereby improving the controllability of the vehicle, avoiding vehicle rollover, causing traffic accidents and driver injuries. Compared with traditional brake systems, the present invention has the excellent effects of strong braking ability and high braking safety.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle braking devices, and in particular to a vehicle running braking device with an auxiliary braking function. Background Art

[0002] The vehicle braking device refers to a series of special devices that apply a certain force to the wheels of a car, thereby forcing it to brake to a certain extent. The functions of the vehicle braking device are: to force the moving car to slow down or even stop according to the driver's requirements; to make the stopped car park stably under various road conditions (including on a slope); and to keep the speed of the car driving downhill stable. The traditional vehicle braking device is composed of a brake disc and a brake pad. When the vehicle brakes, the brake pad clamps the brake disc and brakes the vehicle through friction. However, this braking method can easily cause the temperature of the brake disc to rise, resulting in the failure of the brake device, and then the vehicle cannot brake, resulting in a traffic accident. At the same time, the traditional vehicle braking device does not have a wheel anti-lock system. When the vehicle is driving at high speed, the brakes are suddenly applied, causing the wheels to be locked by the brake pads, resulting in the vehicle losing control and causing an accident, and even causing the vehicle to roll over and cause injuries or death. Therefore, the emergence of a vehicle driving brake device with auxiliary braking function, certain anti-tire locking braking performance and high braking safety is imminent. Summary of the invention

[0003] The object of the present invention is to provide a vehicle driving brake device with auxiliary braking function, including wheel fixing bolts, brake discs, temperature sensors, electromagnetic windings, lead screws, motor fixing frames, drive motors, fixing frames, brake pads and tire mounting frames, one end face of the tire mounting frame is evenly fixed with wheel fixing bolts, and the other end face is frictionally connected to the brake disc through an anti-lock mechanism, the temperature sensor is close to one side of the brake disc, and the temperature sensor is electrically connected to the vehicle central control system, the brake pads are arranged at the edge of the brake disc, and the brake pads are electrically connected to the vehicle central control system The electromagnetic winding is arranged on the side of the brake pad without a temperature sensor, the fixing frame is fixed on the vehicle frame, the drive motor is fixed on the motor fixing frame, the motor fixing frame is fixed on the fixing frame, the lead screw is embedded in the fixing frame, and the lead screw is rotatably connected to the fixing frame, one end of the lead screw is fixedly connected to the output shaft of the drive motor, the other end of the lead screw penetrates the electromagnetic winding and is rotatably connected to the tire mounting frame, the electromagnetic winding is fixed on the fixing frame, and the electromagnetic winding is slidably connected to the fixing frame, and the electromagnetic winding and the drive motor are both electrically connected to the vehicle central control system.

[0004] Furthermore, the brake disc is in the shape of a flat disc, a tire mounting frame mounting hole is provided in the center of the brake disc, a temperature sensor is provided near the front side of the brake disc, and a plurality of fan-shaped grooves are evenly provided on the rear side of the brake disc, and fan-shaped metal sheets are fixed in the plurality of fan-shaped grooves, and the fan-shaped metal sheets are made of copper-aluminum alloy material.

[0005] Furthermore, the electromagnetic winding includes a power supply, a negative terminal, a positive terminal, a winding coil, a limiting connecting rod, a movable fixing sleeve and an iron core, the iron core is a circular ring, the winding coil is wound on the iron core, the negative terminal and the positive terminal are respectively fixedly connected to the two ends of the winding coil, the negative terminal and the positive terminal are arranged on the power supply, the power supply is electrically connected to the vehicle central control system, the movable fixing sleeve is arranged at the center of the iron core, and limiting connecting rods are respectively provided at both ends of the movable fixing sleeve, the two limiting connecting rods are respectively fixedly connected to the winding coil, and a threaded hole is provided in the center of the movable fixing sleeve.

[0006] Furthermore, the screw includes a screw body and a connecting head, the cross-section of the connecting head is T-shaped, the connecting head is fixed to the end of the screw body, the connecting head is embedded in the tire mounting frame, and the connecting head is rotatably connected to the tire mounting frame, the end of the screw body is rotatably connected to the tire mounting frame through the connecting head, the head end of the screw body is fixedly connected to the output shaft of the drive motor, the outer side wall of the screw body is provided with a thread, and the thread of the outer side wall of the screw body is threadedly matched with the central threaded hole of the movable fixed sleeve.

[0007] Furthermore, the fixing frame includes a bottom plate, a limit groove plate and a vertical plate, the bottom plate is a flat plate placed horizontally, the vertical plate is vertically fixed at the center position of the upper end surface of the bottom plate, the vertical plate and the bottom plate are combined to form a combination with a T-shaped cross-section, a motor fixing frame is fixed on the upper end surface of the bottom plate, and the motor fixing frame is located on one side of the vertical plate, a bearing hole is provided in the center of the vertical plate, and limit groove plates are symmetrically fixed on both sides of the bearing hole, the limit groove plates are located on a side surface of the vertical plate away from the motor fixing frame, two limit groove plates are provided with grooves along the horizontal direction of the limit groove plates, a limit connecting rod is provided in the groove, and the limit connecting rod is slidably matched with the groove, the central bearing hole of the vertical plate is matched with the output shaft of the driving motor, and the output shaft of the driving motor is rotatably connected to the central bearing hole of the vertical plate.

[0008] Furthermore, the anti-lock braking mechanism includes a friction disc and an extrusion spring, the friction disc is arranged in a tire mounting frame mounting through hole in the center of the brake disc, and the friction disc is tightly fitted with an inner side wall of the tire mounting frame mounting through hole in the center of the brake disc, one end of a tire mounting frame non-wheel fixing bolt is provided in the tire mounting frame mounting through hole, the extrusion spring is arranged in the tire mounting frame mounting through hole, one end of the extrusion spring is fixedly connected to the friction disc, and the other end of the extrusion spring is fixedly connected to the outer side wall of the tire mounting frame, and the extrusion spring can be replaced with a spring of corresponding strength according to actual conditions.

[0009] Further, the vehicle driving brake device also includes a braking system, which includes: a vehicle central control module, a temperature detection module, a brake pad driving module, a driving motor module and a power supply module, the vehicle central control module is unidirectionally connected to the brake pad driving module, the temperature detection module is unidirectionally connected to the vehicle central control module, and the vehicle central control module is unidirectionally connected to the driving motor module and the power supply module;

[0010] The vehicle central control module is used to control the operation of the brake pad drive module, the drive motor module and the power supply module, and at the same time receive the temperature signal transmitted by the temperature detection module;

[0011] The brake pad driving module is used to drive the brake pad to brake the wheel;

[0012] The temperature detection module is used to detect the temperature of the brake disc and transmit the temperature data to the vehicle central control module;

[0013] The drive motor module is used to drive the drive motor to rotate forward and reverse;

[0014] The power supply module of the power supply is used to supply power to the power supply.

[0015] Furthermore, the specific working steps of the braking system are as follows:

[0016] 1) The vehicle central control module transmits the braking command to the brake pad drive module;

[0017] 2) The brake pad driving module drives the brake pad to brake the wheel;

[0018] 3) At this time, the temperature detection module detects the temperature of the brake disc. When the temperature exceeds the preset value, the temperature detection module sends a brake temperature exceeding standard information to the vehicle central control module;

[0019] 4) The vehicle central control module receives the brake temperature exceeding standard information transmitted by the temperature detection module, and controls the power supply module and the drive motor module to start;

[0020] 5) The power supply module supplies power to the power supply, and the power supply supplies power to the winding coil, generating an electromagnetic effect in the iron core;

[0021] 6) The drive motor module supplies power to the drive motor, and the drive motor starts to rotate forward and reverse, thereby controlling the distance between the electromagnetic winding and the fan-shaped metal sheet, thereby changing the number of magnetic field lines generated by the fan-shaped metal sheet cutting the electromagnetic winding, and then generating anti-magnetic fields of different intensities to assist in braking the wheels.

[0022] Further, the working steps and principles of the present invention are:

[0023] 1) The brake pad performs braking operation, and the temperature sensor monitors the temperature of the brake disc;

[0024] 2) When the brake disc exceeds the preset value of the temperature sensor, the temperature sensor transmits the brake temperature exceeding the limit information to the vehicle central control module;

[0025] 3) The vehicle central control module controls the power supply module to supply power to the power supply, and the power supply supplies power to the winding coil, generating an electromagnetic effect in the iron core;

[0026] 4) The fan-shaped metal sheet rotates with the tire, cutting the magnetic flux lines generated by the electromagnetic winding, thereby generating eddy currents inside the fan-shaped metal sheet, and then generating a reverse magnetic field to resist the movement;

[0027] 5) The drive motor module supplies power to the drive motor, and the drive motor starts to rotate forward and reverse, causing the lead screw to start to rotate forward and reverse;

[0028] 6) The lead screw and the movable fixed sleeve rotate relative to each other, thereby controlling the electromagnetic winding to move back and forth along the lead screw, thereby controlling the distance between the electromagnetic winding and the fan-shaped metal sheet, thereby changing the number of magnetic field lines generated by the fan-shaped metal sheet cutting the electromagnetic winding, thereby generating anti-magnetic fields of different strengths to assist in braking the wheels;

[0029] 7) When the tire is locked, sliding friction is generated between the tire and the ground. At this time, the sliding friction is greater than the static friction between the friction disc and the brake disc, causing the friction disc to rotate inside the brake disc, and then causing the tire mounting frame to rotate relative to the brake disc. When the tire mounting frame rotates, the sliding friction between the tire and the ground disappears, causing the friction disc to remain stationary inside the brake disc. At this time, the tire mounting frame and the brake disc are relatively stationary.

[0030] 8) Repeat step 7). When the brake pad locks the brake disc, the tire is always in an alternating state between rotation and stillness, forming a braking effect.

[0031] The beneficial effects of the present invention are as follows: the present invention is provided with an electromagnetic winding and a brake disc, so that when the temperature of the brake disc is too high, resulting in a decrease in the braking ability of the vehicle, the electromagnetic winding can provide auxiliary braking to avoid brake failure and vehicle accidents. The provided drive motor and lead screw enable the distance between the electromagnetic winding and the brake disc to be adjusted, thereby facilitating the control of the auxiliary braking ability of the electromagnetic winding on the brake disc, enhancing the controllability of the auxiliary braking, and ensuring the safety of the auxiliary braking. The provided anti-lock braking mechanism can actively use the anti-lock braking mechanism to achieve tire braking when the vehicle tires are locked, thereby improving the controllability of the vehicle and avoiding vehicle rollover, resulting in traffic accidents and injuries to the driver. Compared with traditional brake systems, the present invention has the excellent effects of strong braking ability and high braking safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0033] Figure 1 It is a schematic diagram of the overall structure of a vehicle driving brake device with auxiliary braking function according to the present invention from a first angle;

[0034] Figure 2 It is a second angle schematic diagram of the overall structure of a vehicle driving brake device with auxiliary braking function according to the present invention;

[0035] Figure 3 It is a structural schematic diagram of the front side of a brake disc of a vehicle driving brake device with auxiliary braking function according to the present invention;

[0036] Figure 4 It is a structural schematic diagram of the rear side of a brake disc of a vehicle driving brake device with auxiliary braking function according to the present invention;

[0037] Figure 5 It is a structural schematic diagram of an electromagnetic winding of a vehicle travel brake device with auxiliary braking function according to the present invention;

[0038] Figure 6 It is a structural schematic diagram of a lead screw of a vehicle travel brake device with auxiliary braking function according to the present invention;

[0039] Figure 7 It is a structural schematic diagram of a fixing frame of a vehicle travel brake device with auxiliary braking function according to the present invention;

[0040] Figure 8 It is a structural schematic diagram of an anti-lock mechanism of a vehicle driving brake device with auxiliary braking function according to the present invention;

[0041] Fig. 9 It is a module diagram of a braking system of a vehicle travel braking device with an auxiliary braking function according to the present invention. DETAILED DESCRIPTION

[0042] See also Figure 1-9 As shown, a vehicle driving brake device with auxiliary braking function includes a wheel fixing bolt 1, a brake disc 2, a temperature sensor 3, an electromagnetic winding 4, a lead screw 5, a motor fixing frame 6, a driving motor 7, a fixing frame 8, a brake pad 9 and a tire mounting frame 10. The wheel fixing bolts 1 are evenly fixed on one end surface of the tire mounting frame 10, and the other end surface is frictionally connected with the brake disc 2 through an anti-lock mechanism 11. The temperature sensor 3 is close to one side of the brake disc 2, and the temperature sensor 3 is electrically connected to the vehicle central control system. The brake pad 9 is arranged at the edge of the brake disc 2, and the brake pad 9 is connected to the vehicle central control system. Electrically connected, the electromagnetic winding 4 is arranged on the side of the brake pad 9 without the temperature sensor 3, the fixing frame 8 is fixed on the frame, the drive motor 7 is fixed on the motor fixing frame 6, the motor fixing frame 6 is fixed on the fixing frame 8, the screw 5 is embedded in the fixing frame 8, and the screw 5 is rotatably connected to the fixing frame 8, one end of the screw 5 is fixedly connected to the output shaft of the drive motor 7, and the other end of the screw 5 penetrates the electromagnetic winding 4 and is rotatably connected to the tire mounting frame 10, the electromagnetic winding 4 is fixed on the fixing frame 8, and the electromagnetic winding 4 is slidably connected to the fixing frame 8, and the electromagnetic winding 4 and the drive motor 7 are both electrically connected to the vehicle central control system.

[0043] like Figure 3-4 As shown, the brake disc 2 is a flat disc, a tire mounting frame mounting through hole is provided in the center of the brake disc 2, a temperature sensor 3 is provided near the front side of the brake disc 2, and a plurality of fan-shaped grooves are evenly provided on the rear side of the brake disc 2. Fan-shaped metal sheets 12 are fixed in the plurality of fan-shaped grooves, and the fan-shaped metal sheets 12 are made of copper-aluminum alloy material.

[0044] like Figure 5 As shown, the electromagnetic winding 4 includes a power supply 41, a negative terminal 42, a positive terminal 43, a winding coil 44, a limiting connecting rod 45, a movable fixing sleeve 46 and an iron core 47. The iron core 47 is annular, and the winding coil 44 is wound on the iron core 47. The negative terminal 42 and the positive terminal 43 are respectively fixedly connected to the two ends of the winding coil 44. The negative terminal 42 and the positive terminal 43 are arranged on the power supply 41, and the power supply 41 is electrically connected to the vehicle central control system. The movable fixing sleeve 46 is arranged at the center of the iron core 47, and limiting connecting rods 45 are respectively provided at both ends of the movable fixing sleeve 46. The two limiting connecting rods 45 are respectively fixedly connected to the winding coil 44, and a threaded hole is provided in the center of the movable fixing sleeve 46.

[0045] like Figure 6As shown, the screw 5 includes a screw body 51 and a connecting head 52. The cross-section of the connecting head 52 is T-shaped. The connecting head 52 is fixed to the end of the screw body 51. The connecting head 52 is embedded in the tire mounting frame 10, and the connecting head 52 is rotatably connected to the tire mounting frame 10. The end of the screw body 51 is rotatably connected to the tire mounting frame 10 through the connecting head 52. The head end of the screw body 51 is fixedly connected to the output shaft of the driving motor 7. A thread is provided on the outer wall of the screw body 51. The thread on the outer wall of the screw body 51 is threadedly connected to the central threaded hole of the movable fixing sleeve 46.

[0046] like Figure 7 As shown, the fixing frame 8 includes a bottom plate 81, a limiting groove plate 82 and a vertical plate 83. The bottom plate 81 is a flat plate placed horizontally, and the vertical plate 83 is vertically fixed at the center position of the upper end surface of the bottom plate 81. The vertical plate 83 and the bottom plate 81 are combined to form a combination with a T-shaped cross-section. A motor fixing frame 6 is fixed on the upper end surface of the bottom plate 81, and the motor fixing frame 6 is located on one side of the vertical plate 83. A bearing hole is provided in the center of the vertical plate 83, and limiting groove plates 82 are symmetrically fixed on both sides of the bearing hole. The limiting groove plates 82 are located on a side surface of the vertical plate 83 away from the motor fixing frame 6. The two limiting groove plates 82 are provided with grooves along the horizontal direction of the limiting groove plates 82, and a limiting connecting rod 45 is provided in the groove, and the limiting connecting rod 45 is slidably matched with the groove. The central bearing hole of the vertical plate 83 is matched with the output shaft of the drive motor 7, and the output shaft of the drive motor 7 is rotatably connected to the central bearing hole of the vertical plate 83.

[0047] like Figure 8 As shown, the anti-lock mechanism 11 includes a friction disc 111 and an extrusion spring 112. The friction disc 111 is arranged in the tire mounting frame mounting through hole at the center of the brake disc 2, and the friction disc 111 is tightly fitted with the inner side wall of the tire mounting frame mounting through hole at the center of the brake disc 2. One end of the tire mounting frame 10 non-wheel fixing bolt 1 is arranged in the tire mounting frame mounting through hole, and the extrusion spring 112 is arranged in the tire mounting frame mounting through hole. One end of the extrusion spring 112 is fixedly connected to the friction disc 111, and the other end of the extrusion spring 112 is fixedly connected to the outer side wall of the tire mounting frame 10. The extrusion spring 112 can be replaced with a spring of corresponding strength according to actual conditions.

[0048] like Fig. 9 As shown, the vehicle driving brake device also includes a braking system, which includes: a vehicle central control module, a temperature detection module, a brake pad driving module, a driving motor module and a power supply module, the vehicle central control module is unidirectionally connected to the brake pad driving module, the temperature detection module is unidirectionally connected to the vehicle central control module, and the vehicle central control module is unidirectionally connected to the driving motor module and the power supply module;

[0049] The vehicle central control module is used to control the operation of the brake pad drive module, the drive motor module and the power supply module, and at the same time receive the temperature signal transmitted by the temperature detection module;

[0050] The brake pad driving module is used to drive the brake pad 9 to brake the wheel;

[0051] The temperature detection module is used to detect the temperature of the brake disc 2 and transmit the temperature data to the vehicle central control module;

[0052] The driving motor module is used to drive the driving motor 7 to rotate forward and reverse;

[0053] The power supply module is used to supply power to the power supply 41 .

[0054] The specific working steps of the braking system are as follows:

[0055] 1) The vehicle central control module transmits the braking command to the brake pad drive module;

[0056] 2) The brake pad driving module drives the brake pad 9 to brake the wheel;

[0057] 3) At this time, the temperature detection module detects the temperature of the brake disc 2. When the temperature exceeds the preset value, the temperature detection module sends a brake temperature exceeding standard information to the vehicle central control module;

[0058] 4) The vehicle central control module receives the brake temperature exceeding standard information transmitted by the temperature detection module, and controls the power supply module and the drive motor module to start;

[0059] 5) The power supply module supplies power to the power supply 41, and the power supply 41 supplies power to the winding coil 44, generating an electromagnetic effect in the iron core 47;

[0060] 6) The drive motor module supplies power to the drive motor 7, and the drive motor 7 starts to rotate forward and reverse, thereby controlling the distance between the electromagnetic winding 4 and the fan-shaped metal sheet 12, thereby changing the number of magnetic field lines generated by the fan-shaped metal sheet 12 cutting the electromagnetic winding 4, and then generating anti-magnetic fields of different intensities to assist in braking the wheels.

[0061] Working steps and principles of the present invention:

[0062] 1) The brake pad 9 performs a braking operation, and the temperature sensor 3 monitors the temperature of the brake disc 2;

[0063] 2) When the brake disc 2 exceeds the preset value of the temperature sensor 3, the temperature sensor 3 transmits the brake temperature exceeding the limit information to the vehicle central control module;

[0064] 3) The vehicle central control module controls the power supply module to supply power to the power supply 41, and the power supply 41 supplies power to the winding coil 44, and an electromagnetic effect is generated in the iron core 47;

[0065] 4) The fan-shaped metal sheet 12 rotates with the tire, cutting the magnetic flux lines generated by the electromagnetic winding 4, thereby generating eddy currents inside the fan-shaped metal sheet 12, and then generating a reverse magnetic field to resist the movement;

[0066] 5) The drive motor module supplies power to the drive motor 7, and the drive motor 7 starts to rotate forward and reverse, causing the lead screw 5 to start to rotate forward and reverse;

[0067] 6) The lead screw 5 and the movable fixed sleeve 46 rotate relative to each other, thereby controlling the electromagnetic winding 4 to move back and forth along the lead screw 5, thereby controlling the distance between the electromagnetic winding 4 and the fan-shaped metal sheet 12, thereby changing the number of magnetic field lines of force generated by the fan-shaped metal sheet 12 cutting the electromagnetic winding 4, thereby generating anti-magnetic fields of different strengths to assist in braking the wheels;

[0068] 7) When the tire is locked, sliding friction is generated between the tire and the ground, causing the friction disc 111 to rotate inside the brake disc 2, thereby causing the tire mounting frame 10 to rotate relative to the brake disc 2. When the tire mounting frame 10 rotates, the sliding friction between the tire and the ground disappears, causing the friction disc 111 to remain stationary inside the brake disc 2. At this time, the tire mounting frame 10 and the brake disc 2 are relatively stationary.

[0069] 8) Repeat step 7), when the brake pad 9 locks the brake disc 2, the tire is always in a state of rotation and a state of rest, forming a braking effect.

[0070] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A vehicle driving brake device with auxiliary braking function, comprising a wheel fixing bolt (1), a brake disc (2), a temperature sensor (3), an electromagnetic winding (4), a lead screw (5), a motor fixing frame (6), a drive motor (7), a fixing frame (8), a brake pad (9) and a tire mounting frame (10), characterized in that: The tire mounting frame (10) has a wheel fixing bolt (1) evenly fixed on one end surface, and the other end surface is frictionally connected to the brake disc (2) through an anti-lock mechanism (11). The temperature sensor (3) is close to one side of the brake disc (2), and the temperature sensor (3) is electrically connected to the vehicle central control system. The brake pad (9) is arranged at the edge of the brake disc (2), and the brake pad (9) is electrically connected to the vehicle central control system. The electromagnetic winding (4) is arranged on the side of the brake pad (9) without the temperature sensor (3). The fixing frame (8) is fixed on the vehicle frame, and the drive motor (7) is fixed on the electric The motor mounting frame (6) is fixed on the mounting frame (8), the lead screw (5) is embedded in the mounting frame (8), and the lead screw (5) is rotatably connected to the mounting frame (8), one end of the lead screw (5) is fixedly connected to the output shaft of the driving motor (7), the other end of the lead screw (5) penetrates the electromagnetic winding (4) and is rotatably connected to the tire mounting frame (10), the electromagnetic winding (4) is fixed on the mounting frame (8), and the electromagnetic winding (4) is slidably connected to the mounting frame (8), and the electromagnetic winding (4) and the driving motor (7) are both electrically connected to the vehicle central control system; The brake disc (2) is in the shape of a flat disc, a tire mounting frame mounting through hole is provided at the center of the brake disc (2), a temperature sensor (3) is provided near the front side of the brake disc (2), a plurality of fan-shaped grooves are evenly provided on the rear side of the brake disc (2), and fan-shaped metal sheets (12) are fixed in the plurality of fan-shaped grooves, and the fan-shaped metal sheets (12) are made of a copper-aluminum alloy material; The electromagnetic winding (4) comprises a power supply (41), a negative terminal (42), a positive terminal (43), a winding coil (44), a limiting connecting rod (45), a movable fixing sleeve (46) and an iron core (47); the iron core (47) is annular; the winding coil (44) is wound on the iron core (47); the negative terminal (42) and the positive terminal (43) are respectively fixedly connected to the two ends of the winding coil (44); the negative terminal (42) and the positive terminal (43) are arranged on the power supply (41); the power supply (41) is electrically connected to the vehicle central control system; the movable fixing sleeve (46) is arranged at the center of the iron core (47); and limiting connecting rods (45) are respectively arranged at the two ends of the movable fixing sleeve (46); the two limiting connecting rods (45) are respectively fixedly connected to the winding coil (44); and a threaded hole is arranged at the center of the movable fixing sleeve (46); The vehicle driving brake device also includes a braking system, which includes: a vehicle central control module, a temperature detection module, a brake pad driving module, a driving motor module and a power supply module, wherein the vehicle central control module is unidirectionally connected to the brake pad driving module, the temperature detection module is unidirectionally connected to the vehicle central control module, and the vehicle central control module is unidirectionally connected to the driving motor module and the power supply module respectively; The vehicle central control module is used to control the operation of the brake pad drive module, the drive motor module and the power supply module, and at the same time receives the temperature signal transmitted by the temperature detection module. The drive motor module is used to drive the drive motor (7) to rotate forward and reverse; the power supply module is used to supply power to the power supply (41), and the brake pad drive module is used to drive the brake pad (9) to brake the wheel; During braking, the temperature detection module is used to monitor the temperature of the brake disc (2) and transmit the temperature data to the vehicle central control module; when the temperature of the brake disc (2) exceeds a preset temperature value, the temperature detection module transmits the information that the brake temperature exceeds the standard to the vehicle central control module, and the vehicle central control module controls the power supply, and the power supply (41) supplies power to the winding coil (44), an electromagnetic effect is generated in the iron core (47), and the brake disc (2) cuts the magnetic flux lines to generate auxiliary braking force. A fan-shaped metal sheet (12) is provided on the rear side of the brake disc (2) to rotate with the tire and cut the magnetic flux lines generated by the electromagnetic winding, thereby generating eddy currents inside the fan-shaped metal sheet (12), and then generating an anti-magnetic field to resist the movement, and the lead screw (5) controls the distance between the electromagnetic winding (4) and the fan-shaped metal sheet (12).

2. A vehicle driving brake device with auxiliary braking function according to claim 1, characterized in that: The lead screw (5) comprises a lead screw body (51) and a connecting head (52), wherein the cross section of the connecting head (52) is T-shaped, the connecting head (52) is fixed to the end of the lead screw body (51), the connecting head (52) is embedded in the tire mounting frame (10), and the connecting head (52) is rotatably connected to the tire mounting frame (10), the end of the lead screw body (51) is rotatably connected to the tire mounting frame (10) through the connecting head (52), the head end of the lead screw body (51) is fixedly connected to the output shaft of the driving motor (7), the outer wall of the lead screw body (51) is provided with a thread, and the thread of the outer wall of the lead screw body (51) is threadedly matched with the central threaded hole of the movable fixing sleeve (46).

3. A vehicle driving brake device with auxiliary braking function according to claim 1, characterized in that: The fixing frame (8) comprises a bottom plate (81), a limiting groove plate (82) and a vertical plate (83); the bottom plate (81) is a flat plate placed horizontally; the vertical plate (83) is vertically fixed at a central position on an upper end surface of the bottom plate (81); the vertical plate (83) and the bottom plate (81) are combined to form a combined body with a T-shaped cross section; a motor fixing frame (6) is fixed on the upper end surface of the bottom plate (81), and the motor fixing frame (6) is located on one side of the vertical plate (83); a bearing hole is provided at the center of the vertical plate (83); the bearing hole The two sides are symmetrically fixed with limit groove plates (82), the limit groove plates (82) are located on a side surface of the vertical plate (83) away from the motor fixing frame (6), the two limit groove plates (82) are provided with grooves along the horizontal direction of the limit groove plates (82), the grooves are provided with limit connecting rods (45), and the limit connecting rods (45) are slidably matched with the grooves, the central bearing hole of the vertical plate (83) is matched with the output shaft of the drive motor (7), and the output shaft of the drive motor (7) is rotatably connected with the central bearing hole of the vertical plate (83).

4. A vehicle driving brake device with auxiliary braking function according to claim 1, characterized in that: The anti-lock mechanism (11) comprises a friction disc (111) and a compression spring (112); the friction disc (111) is arranged in a tire mounting frame mounting through hole at the center of the brake disc (2); the friction disc (111) is tightly fitted with the inner side wall of the tire mounting frame mounting through hole at the center of the brake disc (2); one end of a tire mounting frame (10) non-wheel fixing bolt (1) is arranged in the tire mounting frame mounting through hole; the compression spring (112) is arranged in the tire mounting frame mounting through hole; one end of the compression spring (112) is fixedly connected to the friction disc (111); and the other end of the compression spring (112) is fixedly connected to the outer side wall of the tire mounting frame (10).

5. The vehicle driving brake device with auxiliary braking function according to claim 1, characterized in that: The specific working steps of the braking system are as follows: 1) The vehicle central control module transmits the braking command to the brake pad drive module; 2) The brake pad driving module drives the brake pad (9) to brake the wheel; 3) At this time, the temperature detection module detects the temperature of the brake disc (2). When the temperature exceeds a preset value, the temperature detection module sends a brake temperature exceeding standard information to the vehicle central control module; 4) The vehicle central control module receives the brake temperature exceeding standard information transmitted by the temperature detection module, and controls the power supply module and the drive motor module to start; 5) The power supply module supplies power to the power supply (41), and the power supply (41) supplies power to the winding coil (44), thereby generating an electromagnetic effect in the iron core (47); 6) The drive motor module supplies power to the drive motor (7), and the drive motor (7) starts to rotate forward and reverse, thereby controlling the distance between the electromagnetic winding (4) and the fan-shaped metal sheet (12), thereby changing the number of magnetic field lines of force generated by the fan-shaped metal sheet (12) cutting the electromagnetic winding (4), and then generating reverse magnetic fields of different strengths to assist in braking the wheels.

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