Brake device of driver

Abstract

The brake device comprises a support and a brake mechanism, a motor is connected with the support, a main shaft is connected to the support in a rotating mode, the main shaft is connected with an output shaft of the motor, a brake drum is arranged on the main shaft in a sleeved mode, the brake mechanism comprises a brake plate and a stay wire, the brake plate is arranged on the support in a rotating mode, and the stay wire is arranged on the support. A brake pad is arranged in the middle of the brake plate and surrounds the outer side of the brake drum, the pull wire is connected with the brake plate and sleeved with a spring, and the two ends of the spring abut against the pull wire and the support respectively. The utility model provides a braking device of a driving machine. A pure mechanical transmission mode is adopted for braking a motor.

Description

Technical Field

[0001] The utility model relates to the field of motor supporting devices, in particular to a braking device of a driving machine. Background Art

[0002] Self-driving cars are intelligent cars that use computer systems to control the operation of on-board equipment to achieve unmanned driving or assisted driving. Self-driving cars rely on the coordinated cooperation of computer systems, visual computing, radar, monitoring devices and global positioning systems, allowing the computer system to automatically and safely operate the vehicle without active driver operation.

[0003] Compared with traditional fuel engines, electric motors can be controlled more precisely through computer systems, achieving highly intelligent management of vehicle speed, steering, and other aspects. Therefore, most existing self-driving cars use electric motors as their drive.

[0004] However, the motors of the aforementioned self-driving cars are controlled by computer systems, and it is very easy for the driver to make mistakes or hackers to invade the computer system, causing the car to lose control. Therefore, it is necessary to install a purely mechanical braking device on the motor to prevent the car from losing control. Utility Model Content

[0005] The purpose of the utility model is to provide a braking device for a driving machine, which adopts a purely mechanical transmission method to brake the motor.

[0006] The technical solution adopted by the braking device of a driving machine disclosed in the utility model is:

[0007] It includes a bracket and a brake mechanism, the motor is connected to the bracket, the bracket is rotatably connected to a main shaft, the main shaft is connected to the output shaft of the motor, a brake drum is sleeved on the main shaft, the brake mechanism includes a brake plate and a pull wire, the brake plate is rotatably set on the bracket, a brake pad is provided in the middle of the brake plate, the brake pad surrounds the outside of the brake drum, the pull wire is connected to the brake plate, a spring is sleeved on the pull wire, and the two ends of the spring respectively touch the pull wire and the bracket.

[0008] As a preferred solution, the upper cover of the bracket is provided with a protective cover, the main shaft is rotatably connected to the protective cover, the brake drum is located in the protective cover, the brake plate is rotatably connected to the protective cover, the pull wire passes through the protective cover, and one end of the spring touches the inner wall of the protective cover.

[0009] As a preferred solution, there are two brake plates, which are symmetrical to each other. A connector extends from the pull wire, and the connector is rotatably connected to the brake plate.

[0010] As a preferred solution, the brake plate consists of a first plate and a second plate, the first plate is rotatably connected to the protective cover, the brake pad is located on the first plate, the first plate is rotatably connected to the second plate, and the connector is rotatably connected to the second plate.

[0011] As a preferred solution, an extension edge is provided on the outer side of the brake drum, and the extension edge is located between the brake plate and the bracket.

[0012] As a preferred solution, an inertia wheel is rotatably connected to the bracket, the main shaft passes through the inertia wheel, an annular groove is provided on the inertia wheel, an electromagnetic coil is provided on the bracket, the electromagnetic coil is located in the annular groove, a clutch disc is provided in the brake drum, and the inertia wheel is located between the clutch disc and the electromagnetic coil.

[0013] As a preferred solution, a through groove is passed through the annular groove, and the through groove is close to the clutch disc.

[0014] As a preferred solution, the clutch disc includes a connecting disc and a contact disc, the connecting disc is connected to the brake drum, a plurality of spring sheets are provided on the connecting disc, the spring sheets are connected to the contact disc, and the inertia wheel is located between the contact disc and the electromagnetic coil.

[0015] As a preferred solution, a coupling is further included, with both ends of the coupling being sleeved on the output shaft and the main shaft of the motor respectively.

[0016] The beneficial effects of the brake device of a driving machine disclosed in the utility model are:

[0017] When the driver needs to pause the motor, he pulls the wire to rotate the brake plate, causing the brake pads on the brake plate to contact the brake drum. The friction between the brake pads and the brake drum is used to pause the rotation of the main shaft and the motor output shaft in turn. Since this solution uses mechanical transmission to brake the motor and is independent of the external car's computer system, when the motor cannot be stopped through the external car's computer system, this solution can be used to forcibly pause the rotation of the motor's output shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a braking device of a driving machine.

[0019] Figure 2 The utility model is a schematic diagram of the installation of a coupling of a braking device of a driving machine.

[0020] Figure 3 This is a cross-sectional view of a bracket of a braking device of a driving machine of the utility model.

[0021] Figure 4 The utility model is a schematic diagram of the installation of a brake mechanism of a brake device of a driving machine.

[0022] Figure 5 This is a cross-sectional view of a protective cover of a braking device of a driving machine of the utility model.

[0023] Figure 6 The utility model is a cross-sectional view of a bracket, a brake drum, a clutch disc and an inertia wheel of a brake device of a driving machine.

[0024] Figure 7 The utility model is a schematic diagram of the installation of a clutch disc of a brake device of a driving machine.

[0025] Figure 8 The utility model is a cross-sectional view of a bracket and an inertia wheel of a braking device of a driving machine. DETAILED DESCRIPTION

[0026] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0027] Please refer to Figure 1 and Figure 2 .

[0028] The utility model discloses a brake device for a driving machine, comprising a motor 1, a bracket 2, a coupling 3 and a brake mechanism 4;

[0029] In this embodiment, the motor 1 is preferably a dual-shaft motor 1, one of the output shafts of the motor 1 is connected to the transmission mechanism of the external vehicle, and the motor 1 is connected to one end of the bracket 2; the other end of the bracket 2 is rotatably connected to the main shaft 22. In this embodiment, the main shaft 22 and the other output shaft of the motor 1 are preferably located on the same axis.

[0030] The two ends of the coupling 3 are respectively sleeved on the other output shaft of the motor 1 and one end of the main shaft 22, and the main shaft 22 is connected to the other output shaft of the motor 1 through the coupling 3. The coupling 3 consists of a first claw plate 31, a buffer pad 33 and a second claw plate 32; the first claw plate 31 is sleeved on the other output shaft of the motor 1 and fixedly connected thereto, and a plurality of first claws arranged at intervals are extended on the first claw plate 31, and a plurality of first claws are arranged around the center of the first claw plate 31; the second claw plate 32 is sleeved on one end of the main shaft 22 and fixedly connected thereto, and a plurality of second claws arranged at intervals are extended on the second claw plate 32, and a plurality of second claws are arranged around the center of the second claw plate 32, and the first claw is stuck between two adjacent second claws, and the buffer pad 33 is placed between the first claw plate 31 and the second claw plate 32; when the motor 1 drives the main shaft 22 to rotate through the coupling 3, the buffer pad 33 prevents the vibration generated by the main shaft 22 from being transmitted to the output shaft of the motor 1 through the coupling 3, thereby achieving the effect of isolating vibration and buffering.

[0031] Please refer to Figure 3-Figure 5 .

[0032] A first bearing 211 is embedded in the other end of the bracket 2. The outer ring of the first bearing 211 is fixedly connected to the bracket 2. The inner ring of the first bearing 211 is sleeved on the outside of the main shaft 22 and fixedly connected thereto. The main shaft 22 is rotatably connected to the bracket 2 through the first bearing 211. A first retaining spring is clamped on the outside of the main shaft 22, and the first retaining spring contacts the first bearing 211.

[0033] A protective cover 23 is provided on the upper cover of the bracket 2, and the main shaft 22 is rotatably connected to the protective cover 23. A second bearing 231 is embedded in the protective cover 23, and the outer ring of the second bearing 231 is fixedly connected to the protective cover 23. The inner ring of the second bearing 231 is sleeved on the outside of the main shaft 22 and fixedly connected thereto. The main shaft 22 is rotatably connected to the protective cover 23 through the second bearing 231. A second retaining spring is clamped on the outside of the main shaft 22, and the second retaining spring touches the protective cover 23. The protective cover 23 and the bracket 2 are limited between the first retaining spring and the second retaining spring to prevent the main shaft 22 from detaching from the protective cover 23 and the bracket 2.

[0034] Please refer to Figure 4-Figure 6 .

[0035] A brake drum 221 is sleeved on the main shaft 22, and the axis of the brake drum 221 is located on the same axis as the main shaft 22; two third retaining springs are sleeved on the outer side of the main shaft 22, and the brake drum 221 is limited between the two third retaining springs, and the brake drum 221 is located in the protective cover 23; this device does not need to adopt a ventilation and heat dissipation design, because this device only performs emergency braking in a short time and will not generate a lot of heat. Even if the brake drum 221 generates heat, it can dissipate heat by itself to reduce its own temperature.

[0036] The brake mechanism 4 is placed in the protective cover 23. The brake mechanism 4 includes a brake plate 41 and a pull wire 42. The brake plate 41 is rotatably arranged in the protective cover 23 on the bracket 2. The brake plate 41 is rotatably connected to the inner wall of the protective cover 23.

[0037] Furthermore, in this embodiment, preferably, there are two brake plates 41, and the two brake plates 41 are symmetrical to each other. The brake plates 41 are located on the outside of the brake drum 221. The brake plates 41 are composed of a first plate 411 and a second plate 412. One end of the first plate 411 is rotatably connected to the inner wall of the protective cover 23. A brake pad 413 is provided in the middle of the brake plate 41. The brake pad 413 is located on the first plate 411 and surrounds the outside of the brake drum 221. In this embodiment, the distance between the brake pad 413 and the brake drum 221 is preferably 2 mm. The two brake pads 413 are respectively located above and below the brake drum 221. The other end of the first plate 411 is rotatably connected to one end of the second plate 412. The combination of the first plate 411 and the second plate 412 can increase the deformation amplitude of the brake plate 41, so that the brake pad 413 can contact the outside of the brake drum 221.

[0038] Furthermore, one end of the pull wire 42 passes through the protective cover 23, and a connector 421 extends from the other end of the pull wire 42. The pull wire 42 is connected to the brake plate 41 through the connector 421, and the connector 421 is rotatably connected to the other end of the second plate 412. The outer side of the pull wire 42 is fixedly connected to the limit plate, and a spring 422 is sleeved on the pull wire 42. One end of the spring 422 touches the inner wall of the protective cover 23, and the other end of the spring 422 touches the limit plate.

[0039] When the driver wants to stop the motor 1, he pulls the wire 42 to drive the brake plate 41 to rotate, and the brake plates 41 located above and below the brake drum 221 are pressed against the brake drum 221, so that the brake pads 413 contact the outer side of the brake drum 221, thereby stopping the rotation of the brake drum 221, the main shaft 22 and the output shaft of the motor 1; by controlling the tension of the wire 42, the braking force of the brake mechanism 4 is controlled; after the wire 42 loses tension, the spring 422 pushes the wire 42 to reset, and the wire 42 drives the brake plate 41 to reset, so that the brake pads 413 on the brake plate 41 are away from the brake drum 221.

[0040] Please refer to Figure 6-Figure 8 .

[0041] The bracket 2 is rotatably connected to an inertia wheel 24. The main shaft 22 passes through the inertia wheel 24. The axis of the inertia wheel 24 and the main shaft 22 are located on the same axis. The other end of the bracket 2 is sleeved with a third bearing 242. The inner ring of the third bearing 242 is fixedly connected to the bracket 2. The inertia wheel 24 is sleeved on the outer ring of the third bearing 242 and is fixedly connected thereto. The inertia wheel 24 is rotatably connected to the bracket 2 via the third bearing 242. An annular groove 241 is formed on the inertia wheel 24. The annular groove 241 can reduce the thickness of a portion of the inertia wheel 24. A through groove is formed at the bottom of the annular groove 241, and the through groove passes through the inertia wheel 24.

[0042] Furthermore, an electromagnetic coil 25 is provided on the bracket 2 . In this embodiment, the electromagnetic coil 25 is preferably annular in shape. The electromagnetic coil 25 is located in the annular groove 241 . The electromagnetic coil 25 is fixedly connected to the bracket 2 by bolts.

[0043] The brake drum 221 is sleeved on the outside of the inertia wheel 24, which can reduce the size of the device and reduce the space occupied by the device outside the car. In addition, the device can be installed with a brake drum 221 of larger diameter to improve the braking effect.

[0044] A clutch disc 5 is provided in the brake drum 221, and the inertia wheel 24 is located between the clutch disc 5 and the electromagnetic coil 25. The clutch disc 5 includes a connecting disc 51 and a contact disc 52. The connecting disc 51 is fixedly connected to the inner wall of the brake drum 221. A plurality of springs 511 are provided on the connecting disc 51. In this embodiment, three springs 511 are preferably arranged at intervals around the center of the connecting disc 51. One end of the spring 511 is fixedly connected to the connecting disc 51, and the other end of the spring 511 is fixedly connected to the contact disc 52 is connected, the inertia wheel 24 is located between the contact plate 52 and the electromagnetic coil 25, and the contact plate 52 of the through groove is close to the clutch plate 5. In this embodiment, the contact plate 52 is preferably made of metal. When current is supplied to the electromagnetic coil 25, the electromagnetic coil 25 attracts the contact plate 52 and moves it to contact the inertia wheel 24. At this time, the contact plate 52 pulls the spring piece 511 to deform. When the electromagnetic coil 25 is powered off, the contact plate 52 loses the adsorption force of the electromagnetic coil 25, and the spring piece 511 pulls the contact plate 52 to move and reset.

[0045] An extended edge 222 is provided on the outer side of the brake drum 221, and the extended edge 222 is located between the brake plate 41 and the bracket 2; the dust generated by the friction between the brake pad 413 and the brake drum 221 can be blocked by the extended edge 222 to approach the inertia wheel 24, thereby preventing the dust from affecting the operation of the clutch disc 5.

[0046] The motor 1 consumes a lot of power when it is just started. At this time, the electromagnetic coil 25 is turned off. When the contact plate 52 loses the attraction of the electromagnetic coil 25, the spring 511 pulls the contact plate 52 to reset. The main shaft 22 will not drive the inertia wheel 24 to rotate synchronously, making it easier for the output shaft of the motor 1 to start, and also reducing the power consumption of the motor 1 when it is just started.

[0047] After the motor 1 is started, the electromagnetic coil 25 starts to operate. The contact plate 52 is attracted by the electromagnetic coil 25 and contacts the inertia wheel 24. The contact plate 52 pulls the spring 511 to deform. The main shaft 22 drives the inertia wheel 24 to rotate synchronously through the brake drum 221 and the clutch plate 5, thereby driving the inertia wheel 24 to rotate.

[0048] After the motor 1 is powered off, current is supplied to the electromagnetic coil 25, causing the electromagnetic coil 25 to attract the contact plate 52 and contact the inertia wheel 24. The rotating inertia wheel 24 utilizes the friction between the contact plate 52 and the inertia wheel 24 to sequentially drive the brake drum 221, the main shaft 22, and the output shaft of the motor 1 to rotate synchronously, thereby increasing the rotational inertia of the output shaft of the motor 1.

[0049] When the external vehicle needs to brake, the electromagnetic coil 25 is turned off, and the spring 511 pulls the contact plate 52 to reset, so that the inertia wheel 24 will not drive the main shaft 22 and the output shaft of the motor 1 to rotate, and the output shaft of the motor 1 can stop rotating more easily.

[0050] The utility model provides a braking device for a driving machine. When the driver needs to pause the operation of the motor, the brake plate is rotated by pulling a pull wire, so that the brake pad on the brake plate contacts the brake drum, and the friction between the brake pad and the brake drum is utilized to pause the rotation of the main shaft and the output shaft of the motor in turn. Since the solution adopts mechanical transmission as the motor brake and is independent of the computer system of the external vehicle, when the operation of the motor cannot be stopped by the computer system of the external vehicle, the rotation of the output shaft of the motor can be forcibly paused by the solution.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A braking device for a driving machine, comprising a motor, characterized in that: It also includes a bracket and a brake mechanism, the motor is connected to the bracket, a main shaft is rotatably connected to the bracket, the main shaft is connected to the output shaft of the motor, and a brake drum is sleeved on the main shaft; The brake mechanism includes a brake plate and a pull wire. The brake plate is rotatably set on the bracket. A brake pad is provided in the middle of the brake plate. The brake pad surrounds the outside of the brake drum. The pull wire is connected to the brake plate. A spring is provided on the pull wire. The two ends of the spring respectively touch the pull wire and the bracket.

2. A braking device for a driving machine according to claim 1, characterized in that: The upper cover of the bracket is provided with a protective cover, the main shaft is rotatably connected to the protective cover, the brake drum is located in the protective cover, the brake plate is rotatably connected to the protective cover, the pull wire passes through the protective cover, and one end of the spring touches the inner wall of the protective cover.

3. A braking device for a driving machine according to claim 2, characterized in that: There are two brake plates, which are symmetrical to each other. A connector extends from the pull wire, and the connector is rotatably connected to the brake plates.

4. A braking device for a driving machine according to claim 3, characterized in that: The brake plate is composed of a first plate and a second plate, the first plate is rotatably connected to the protective cover, the brake pad is located on the first plate, the first plate is rotatably connected to the second plate, and the connector is rotatably connected to the second plate.

5. A braking device for a driving machine as claimed in claim 4, characterized in that: An extension edge is provided on the outer side of the brake drum, and the extension edge is located between the brake plate and the bracket.

6. A braking device for a driving machine as claimed in claim 2, characterized in that: An inertia wheel is rotatably connected to the bracket, the main shaft passes through the inertia wheel, an annular groove is provided on the inertia wheel, an electromagnetic coil is provided on the bracket, the electromagnetic coil is located in the annular groove, a clutch disc is provided in the brake drum, and the inertia wheel is located between the clutch disc and the electromagnetic coil.

7. A braking device for a driving machine according to claim 6, characterized in that: A through groove is passed through the annular groove, and the through groove is close to the clutch disc.

8. A braking device for a driving machine according to claim 7, characterized in that: The clutch disc includes a connecting disc and a contact disc. The connecting disc is connected to the brake drum. A plurality of spring sheets are provided on the connecting disc. The spring sheets are connected to the contact disc. The inertia wheel is located between the contact disc and the electromagnetic coil.

9. A braking device for a driving machine according to claim 8, characterized in that: It also includes a coupling, with two ends of the coupling respectively sleeved on the output shaft and the main shaft of the motor.

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