Self-checking automobile brake clearance automatic adjustment arm

Abstract

The invention discloses a self-checking automobile brake clearance automatic adjustment arm, comprising a shell, a cover plate, a worm gear, a sensing mechanism, and a sensing receiving mechanism. The cover plate is fixedly connected to the shell by bolts, and the worm gear can be rotatably connected in the shell and is located at the lower part of the cover plate. The invention has a reasonable structure and is easy to use. By arranging a sensing mechanism with a sensor 1 and an sensing receiving mechanism with a sensing switch 1 on the adjustment arm, after the automobile shoe is worn, the sensing mechanism triggers the sensing receiving mechanism under the drive of a turbine, and sends out an alarm to remind the driver and passengers to replace the shoe, thereby avoiding driving safety caused by excessive shoe wear; through the sensing switch 2 arranged on the cover plate and the sensing switch 2 arranged on the adjustment arm positioning plate, after the adjustment arm fails, the sensing switch 2 is triggered by the sensing switch 2 to send out an alarm to remind the driver and passengers to replace the adjustment arm, thereby avoiding driving safety caused by failure of the adjustment arm.

Description

Technical Field

[0001] The invention relates to an automatic brake clearance adjusting arm for automobiles, in particular to a self-checking automatic brake clearance adjusting arm for automobiles which can self-check shoe wear and failure. Background Art

[0002] The automobile brake clearance automatic adjuster is a clearance compensation device suitable for wheeled automobile brakes. Its function is to adjust the brake clearance of the automobile brake to keep the clearance relatively stable, thereby ensuring the optimal braking force of the brake. my country's traditional automobile brake clearance automatic adjuster can only keep the brake clearance relatively stable, but it will have a great impact on driving safety due to excessive wear of the shoe or failure of the adjuster arm itself. Therefore, designing a self-checking automobile brake clearance automatic adjuster is an urgent problem that technical personnel in related fields need to solve. Summary of the invention

[0003] In order to solve the above technical problems, the technical solution provided by the present invention is: a self-checking automobile brake clearance automatic adjustment arm, comprising a shell, a cover plate, a worm gear, a sensing mechanism, and an sensing receiving mechanism. The cover plate is fixedly connected to the shell by bolts, and the worm gear is rotatably connected in the shell and is located at the lower part of the cover plate. A sensing mechanism adapted to the shape of the worm gear is provided on one side surface of the worm gear, a sensor 1 is provided on the top of the sensing mechanism, and a locking bevel iron and a locking nut are provided on the bottom so that the sensing mechanism is fixedly connected to the worm gear. The sensing receiving mechanism is fixed on the cover plate and fixedly connected to the shell by bolts. A sensing switch 1 corresponding to the sensor 1 is provided on the sensing receiving mechanism, and the bottom of the sensing receiving mechanism is an arc-shaped arc adapted to the shape of the sensing mechanism. In the initial state, an angle is provided between the sensor 1 on the sensing mechanism and the sensing switch 1. After the automobile shoe is worn, the sensing mechanism can rotate and contact the sensing switch 1 under the drive of the worm gear.

[0004] As an improvement, a cover plate and an adjustment arm positioning plate are provided on the side surface of the shell away from the sensing mechanism, the cover plate is fixedly connected to the shell by bolts, the adjustment arm positioning plate is arranged on the shell and movably connected to the shell, the cover plate is provided with a second sensing switch, the adjustment arm positioning plate is provided with a second sensor, and an initial angle is provided between the second sensor and the second sensing switch.

[0005] As an improvement, the induction mechanism is ring-shaped.

[0006] As an improvement, the induction receiving mechanism is provided with an induction switch installation slot, the induction switch 1 is arranged in the induction switch installation slot, and the induction switch 1 is also provided with a signal transmission line, and the signal transmission line extends from the upper part of the induction switch installation slot.

[0007] As an improvement, mounting holes are respectively provided at both ends of the induction receiver.

[0008] As an improvement, the induction switch 1 and the induction switch 2 are provided with an SMC magnetically controlled switch circuit, and the SMC magnetically controlled switch circuit is wiredly connected to a magnetically controlled signal acquisition unit, a signal distribution output unit, and a signal alarm output unit in sequence, and the magnetically controlled signal acquisition unit and the signal distribution output unit are wiredly connected to a human-machine interface data detection system.

[0009] As an improvement, the magnetic control signal acquisition unit, the signal distribution output unit and the human-machine interface data detection system communicate with each other via the MODBUS485 protocol.

[0010] As an improvement, the signal alarm output unit is wired to a buzzer alarm device.

[0011] As an improvement, the SMC magnetically controlled switch circuit includes a loop consisting of a switch main circuit, a load and a DC12-24V power supply, and also includes a light-emitting diode and a transistor connected to the switch main circuit, and a diode connected to both ends of the DC12-24V power supply.

[0012] After adopting the above structure, the present invention has the following advantages: the present invention has a reasonable structure and is easy to use. By arranging a sensing mechanism with a sensor 1 and a sensing receiving mechanism with a sensing switch 1 on the adjusting arm, after the automobile shoe is worn, the sensing mechanism triggers the sensing receiving mechanism under the drive of the worm gear, and sends out an alarm to remind the driver and passengers to replace the shoe, thereby avoiding driving safety caused by excessive wear of the shoe; through the sensing switch 2 set on the cover plate and the sensing switch 2 set on the adjusting arm positioning plate, after the adjusting arm fails, the sensing switch 2 is triggered by the sensor 2 to send out an alarm to remind the driver and passengers to replace the adjusting arm, thereby avoiding driving safety caused by failure of the adjusting arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The invention is a structural schematic diagram of a self-checking automobile brake clearance automatic adjusting arm.

[0014] Figure 2 The invention discloses a schematic diagram of the arrangement structure of a sensing mechanism and a sensing receiving mechanism in a self-checking automobile brake clearance automatic adjustment arm.

[0015] Figure 3 The invention discloses a schematic structural diagram of a sensing mechanism in a self-checking automobile brake clearance automatic adjustment arm.

[0016] Figure 4 The invention discloses a schematic structural diagram of an inductive receiving mechanism in a self-checking automobile brake clearance automatic adjusting arm.

[0017] Figure 5 The present invention is a schematic diagram of the arrangement structure of the induction switch 2 and the induction sensor 2 in the self-checking automobile brake clearance automatic adjustment arm.

[0018] Figure 6 The invention discloses a circuit structure diagram of a self-checking automobile brake clearance automatic adjustment arm.

[0019] Figure 7 The invention discloses a structural schematic diagram of a self-checking automobile brake clearance automatic adjustment arm SMC magnetically controlled switch circuit.

[0020] As shown in the figure: 1. Cover plate, 2. Shell, 3. Bolt, 4. Worm gear, 5. Sensing mechanism, 5.1. Locking bevel iron, 5.2. Locking nut, 6. Sensing receiving mechanism, 6.1. Sensing switch mounting slot, 6.2. Mounting hole, 7. Worm, 8. Sensor 1, 9. Sensing switch 1, 9.1. Signal transmission line, 10. Adjustment arm positioning plate, 11. Sensing switch 2, 12. Sensor 2. DETAILED DESCRIPTION

[0021] Combined with Figures 1 to 7 , a self-checking automobile brake clearance automatic adjustment arm comprises a housing 2, a cover plate 1, a worm wheel 4, a sensing mechanism 5, and a sensing receiving mechanism 6. The cover plate 1 is fixedly connected to the housing 2 by bolts 3, the worm wheel 4 is rotatably connected to the housing 2 and is located at the lower part of the cover plate 1, and a sensing mechanism 5 adapted to the shape of the worm wheel is provided on one side surface of the worm wheel 4, a sensor 8 is provided on the top of the sensing mechanism, and a locking inclined iron 5.1 and a locking nut 5.2 are provided on the bottom so that the sensing mechanism 5 is fixedly connected to the worm wheel 4, the sensing receiving mechanism 6 is fixed on the cover plate 1 and fixedly connected to the housing 2 by bolts 3, a sensing switch 9 corresponding to the sensor 8 is provided on the sensing receiving mechanism 6, and the bottom of the sensing receiving mechanism 6 is an arc-shaped arc adapted to the shape of the sensing mechanism 5. In the initial state, an angle is set between the sensor 8 on the sensing mechanism 5 and the sensing switch 9, and the sensing mechanism 5 can rotate and contact the sensing switch 9 under the drive of the worm wheel 4 after the automobile shoe is worn.

[0022] As a preferred implementation scheme of this embodiment, a cover plate 1 and an adjustment arm positioning plate 10 are provided on the side surface of the shell 2 away from the sensing mechanism 5, the cover plate 1 is fixedly connected to the shell 2 by bolts 3, the adjustment arm positioning plate 10 is arranged on the shell 2 and movably connected to the shell 2, the cover plate 1 is provided with a sensing switch 2 11, the adjusting arm positioning plate 10 is provided with a sensor 2 12, and an initial angle is set between the sensor 2 12 and the sensing switch 2 11.

[0023] As a preferred implementation scheme of this embodiment, the sensing mechanism 5 is ring-shaped.

[0024] As a preferred implementation scheme of this embodiment, the induction receiving mechanism 6 is provided with an induction switch installation groove 6.1, the induction switch 9 is arranged in the induction switch installation groove 6.1, and the induction switch 9 is also provided with a signal transmission line 9.1, and the signal transmission line 9.1 extends from the upper part of the induction switch installation groove 6.1.

[0025] As a preferred implementation scheme of this embodiment, both ends of the induction receiver 6 are respectively provided with mounting holes 6.2.

[0026] As a preferred implementation scheme of this embodiment, the induction switch 1 9 and the induction switch 2 11 are provided with SMC magnetically controlled switch circuits, and the SMC magnetically controlled switch circuits are wired to the magnetically controlled signal acquisition unit, the signal distribution output unit, and the signal alarm output unit in sequence, and the magnetically controlled signal acquisition unit and the signal distribution output unit are wired to the human-machine interface data detection system.

[0027] As a preferred implementation scheme of this embodiment, the magnetic control signal acquisition unit, signal distribution output unit and human-machine interface data detection system communicate through MODBUS485 protocol, and the control chip of the magnetic control signal acquisition unit, signal distribution output unit and human-machine interface data detection system adopts STM32F microcontroller.

[0028] As a preferred implementation scheme of this embodiment, the signal alarm output unit is wired to a buzzer alarm device.

[0029] As a preferred implementation scheme of this embodiment, the SMC magnetically controlled switch circuit includes a loop consisting of a switch main circuit, a load and a DC12-24V power supply, and also includes a light-emitting diode and a transistor connected to the switch main circuit, and a diode connected to both ends of the DC12-24V power supply.

[0030] Combined with Figures 1 to 7 The sensing mechanism 5 with the sensor 8 can be fixed on the worm wheel 4 at any radial direction through the locking nut 5.2. When the self-checking automobile brake clearance automatic adjustment arm of the device is installed on the vehicle, the position of the sensing mechanism 5 is adjusted and fixed through the locking nut 5.2. The position of the sensing mechanism 5 is just triggered by the sensing receiving mechanism 6 after the wear of the automobile shoe. In actual use, since the adjustment arm is installed on the vehicle, according to the continuous wear of the automobile shoe, the worm wheel 4 will drive the sensing mechanism 5 to rotate continuously in a fixed direction. When the sensing mechanism 5 triggers the sensing receiving mechanism 6, the sensing receiving mechanism 6 is connected to the buzzer alarm device through the SMC magnetic control switch circuit, the magnetic control signal acquisition unit, the signal distribution output unit, and the signal alarm output unit to sound an alarm, and the human-machine interface data detection system sends a diagram to remind the driver and passengers to replace the shoe, thereby ensuring the driving safety affected by the excessive wear of the shoe.

[0031] Among them, the control chips of the magnetic control signal acquisition unit, signal distribution output unit and signal alarm output unit adopt STM32F single-chip microcomputer and the signal acquisition circuit, signal distribution circuit and alarm circuit connected to the STM32F single-chip microcomputer. The human-machine interface data detection system is arranged in the vehicle, and the human-machine interface data detection system is also controlled by STM32F single-chip microcomputer.

[0032] Combined with Figure 5 The induction switch 11 is installed on the cover plate 1 through the mounting hole. The mounting hole is located at the position where the induction switch 11 is triggered by the induction switch 12 after the self-checking automobile brake clearance adjustment arm of the device fails. After the self-checking automobile brake clearance adjustment arm of the device is installed on the vehicle, when it works normally, there is an angle "A" between the induction switch 11 on the positioning plate 12 and the cover plate 1. The angle "A" will swing back and forth within the appropriate brake clearance range. When the self-checking automobile brake clearance adjustment arm of the device fails, the angle "A" will gradually decrease. When the brake clearance exceeds the designed maximum value, the induction switch 11 will be triggered by the induction switch 12 to issue an alarm or a diagram to remind the driver and passengers to replace the adjustment arm, thereby ensuring the driving safety affected by the failure of the adjustment arm.

[0033] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. The self-checking automobile brake clearance automatic adjustment arm is characterized by: It includes a shell, a cover plate, a worm gear, a sensing mechanism, and a sensing receiving mechanism. The cover plate is fixedly connected to the shell by bolts. The worm gear is rotatably connected to the shell and is located at the lower part of the cover plate. A sensing mechanism adapted to the shape of the worm gear is provided on one side of the worm gear. A sensor 1 is provided on the top of the sensing mechanism, and a locking bevel iron and a locking nut are provided on the bottom to fix the sensing mechanism to the worm gear. The sensing receiving mechanism is fixed on the cover plate and fixedly connected to the shell by bolts. A sensing switch 1 corresponding to the sensor 1 is provided on the sensing receiving mechanism. The bottom of the sensing receiving mechanism is an arc shape adapted to the shape of the sensing mechanism. In the initial state, an angle is provided between the sensor 1 on the sensing mechanism and the sensing switch 1. After the automobile shoe is worn, the sensing mechanism can rotate and contact the sensing switch 1 under the drive of the worm gear; A cover plate and an adjustment arm positioning plate are provided on one side of the housing away from the sensing mechanism. The adjustment arm positioning plate is arranged on the housing and movably connected to the housing. A second sensing switch is provided on the cover plate. A second sensor is provided on the adjustment arm positioning plate. An initial angle is provided between the second sensor and the second sensing switch. The induction mechanism is annular; The induction receiving mechanism is provided with an induction switch installation slot, the induction switch 1 is arranged in the induction switch installation slot, the induction switch 1 is also provided with a signal transmission line, and the signal transmission line extends from the upper part of the induction switch installation slot; The two ends of the induction receiving mechanism are respectively provided with mounting holes; The first induction switch and the second induction switch are provided with an SMC magnetic control switch circuit, and the SMC magnetic control switch circuit is sequentially connected to a magnetic control signal acquisition unit, a signal distribution output unit, and a signal alarm output unit by wires, and the magnetic control signal acquisition unit and the signal distribution output unit are connected to a human-machine interface data detection system by wires; By arranging a sensing mechanism with a sensor 1 and a sensing receiving mechanism with a sensing switch 1 on the adjusting arm, after the shoe of the automobile is worn, the sensing mechanism is driven by the worm gear to trigger the sensing receiving mechanism, and an alarm is issued to remind the driver and passengers to replace the shoe, thereby avoiding driving safety caused by over-wear of the shoe; through the sensing switch 2 arranged on the cover plate and the sensor 2 arranged on the adjusting arm positioning plate, after the adjusting arm fails, the sensor 2 triggers the sensing switch 2 to issue an alarm to remind the driver and passengers to replace the adjusting arm, thereby avoiding driving safety caused by failure of the adjusting arm.

2. The self-checking automobile brake clearance automatic adjustment arm according to claim 1 is characterized in that: The magnetic control signal acquisition unit, the signal distribution output unit and the human-machine interface data detection system communicate with each other through the MODBUS485 protocol.

3. The self-checking automobile brake clearance automatic adjustment arm according to claim 1 is characterized in that: The signal alarm output unit is wiredly connected to a buzzer alarm device.

4. The self-checking automobile brake clearance automatic adjustment arm according to claim 1 is characterized in that: The SMC magnetically controlled switch circuit includes a loop consisting of a switch main circuit, a load and a DC12-24V power supply, and also includes a light-emitting diode and a triode connected to the switch main circuit, and a diode connected to both ends of the DC12-24V power supply.

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