Pulley brake device

Abstract

The utility model discloses a pulley brake device which comprises a frame, a brake structure and a steering structure, and the brake structure is fixedly arranged in the frame and located on the center line of the right end. When a user wants to brake, the user pulls the handle rightwards, the induction metal ring and the magnetic sheet generate the magnetic eddy current effect, the speed reduction effect is generated, the user continues to pull the handle, the brake disc makes contact with the brake block, the tackle is braked, and when the speed of the tackle is too high, the steering structure is fixed to the tackle frame and located on the center line of the left end of the tackle frame. When the speed sensor detects that the speed reaches a specified value, the control module can control the induction metal ring and the magnetic sheet to approach each other to decelerate the main shaft, and when the speed further exceeds a certain value, the control module can directly control the brake block and the brake disc to make contact to conduct forced braking. And in addition, intelligent speed control braking can be achieved, and the safety of the vehicle is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake device technical field, concretely is a kind of pulley brake device. BACKGROUND

[0002] In the vehicle operation process, the braking effect of vehicle has important influence to vehicle performance, and the braking of vehicle is generally realized by the friction between brake shoe and wheel, for example, user pulls brake cable, drives brake shoe and wheel to adhere, to brake wheel.

[0003] The existing brake device is braked by pulling brake block, and force is inevitably lost during pulling, so that the braking effect is not ideal, and brake block is seriously worn after a period of use, so it needs to be replaced frequently, and the cost is very high. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of pulley brake device to solve the problems of poor braking effect and serious brake block wear.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of pulley brake device, comprising:

[0006] Frame;

[0007] Braking structure, which is fixedly arranged in the frame and located on the left end center line;

[0008] Steering structure, which is fixedly arranged in the frame and located on the right end center line;

[0009] The braking structure comprises: a pair of structurally identical slide rails, a pair of structurally identical slide blocks, a pair of structurally identical angle irons, a pair of structurally identical pull plates, a pair of structurally identical telescopic rods, a pair of structurally identical first seat bearings, a main shaft, a pair of structurally identical rear wheels, a pair of structurally identical drive rods, a control module, a detection tooth disc, a speed sensor, a pair of structurally identical brake discs, a pair of structurally identical induction metal rings, a pair of structurally identical brake blocks and a pair of structurally identical magnetic sheets.

[0010] A pair of slide rails are fixedly mounted on the inner wall of the frame, symmetrically positioned on both sides of the center line at the right end of the frame. A pair of sliders are movably mounted on the pair of slide rails, each located at the center. A pair of angle irons are fixedly mounted on the front and rear walls of the pair of sliders, each located at the center. One end of each pair of pull plates is fixedly mounted on the front and rear walls of the pair of angle irons, each located on the center line at the left end. One end of each pair of telescopic rods is rotatably mounted on the other end of the pair of pull plates, and the other end is rotatably mounted on the steering structure. A pair of first bearings with mounting brackets are fixedly mounted on the lower walls of the pair of angle irons, each located at the center. One end of the main shaft movably passes through one of the first bearings with mounting brackets, and the other end movably passes through the other first bearing with mounting brackets. A pair of rear wheels are fixedly mounted on both ends of the main shaft, located on both sides of the center line at the front and rear of the frame. The components are symmetrically arranged. One end of each pair of drive rods is fixedly mounted on the frame, and the other end is fixedly mounted on the front and rear walls of the pull plate. The control module is fixedly mounted on the upper wall of one of the angle irons and located at the center. The detection gear is fixedly mounted on one end of the main shaft. The speed sensor is fixedly mounted on the lower wall of one of the angle irons and opposite to the edge of the detection gear. A pair of brake discs are fixedly mounted on both ends of the main shaft and are symmetrically located on the front and rear sides of the frame centerline. A pair of sensing metal rings are fixedly mounted on one end of the pair of brake discs and are symmetrically located on the front and rear sides of the frame centerline. A pair of brake blocks are fixedly mounted on the lower wall of the frame and are symmetrically located on the front and rear sides of the left centerline. A pair of magnetic plates are fixedly mounted on the left wall of the pair of brake blocks and are symmetrically located on the front and rear sides of the frame centerline.

[0011] Preferably, the telescopic rod is a telescopic structure to prevent the braking structure from moving and interfering with driving.

[0012] Preferably, the drive rod is a mechanism that can be driven to extend or retract by electric, pneumatic, or hydraulic means.

[0013] Preferably, the control module is connected to a speed sensor and a drive rod, and can detect the signal from the speed sensor and control the drive rod.

[0014] Preferably, the brake disc has a stepped cylindrical structure, and the difference between its large and small diameters is greater than the wall thickness of the sensing metal ring.

[0015] Preferably, the right wall of the brake block is arc-shaped and has a stepped structure, with the difference in step height being less than the thickness of the magnetic sheet.

[0016] Preferably, the brake disc and brake pads have the same thickness and are flush at the front and rear.

[0017] Preferably, the sensing metal ring is a metal that can generate magnetic eddy current effects in the magnetic sheet, and the sensing metal ring and the magnetic sheet can be interchanged in material without affecting the deceleration effect.

[0018] Preferably, the steering structure includes: a pair of identical second bearings with mounting brackets, a rotary drum, a handle, a wheel frame, and a hub motor;

[0019] A pair of second seated bearings are fixedly mounted on the upper wall of the frame, and are symmetrically located on the front and rear sides of the right end center line. A rotating rod with the same structure is provided at the center of the front and rear walls of the rotating cylinder. The pair of rotating rods are movably inserted through the pair of second seated bearings, and one end of the rotating cylinder is connected to a pair of pull rods. One end of the handle is movably inserted into the rotating cylinder, and the other end extends out of the rotating cylinder. The wheel frame is fixedly mounted on the lower wall of the handle and is located at the center. The hub motor is rotatably mounted on one end of the wheel frame.

[0020] Preferably, one end of the handle is a stepped cylindrical structure, and its minimum diameter is consistent with the inner diameter of the rotating cylinder.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This trolley braking device provides power for the frame to move forward through a hub motor. When the frame moves forward normally, the rear wheel exerts a rightward force on the main shaft, causing the slider to move to the right on the slide rail. At this time, the brake disc and the sensing metal ring are away from the brake block and the magnetic plate, and do not interfere with each other, allowing for normal forward movement. When braking is desired, the handle is pulled to the right, causing the sensing metal ring and the magnetic plate to approach each other. The sensing metal ring and the magnetic plate generate a magnetic eddy current effect, which decelerates the main shaft. When the handle is pulled further, the brake disc contacts the brake block, producing a braking effect. At this time, the sensing metal ring and the magnetic plate... When the distance is closest, the deceleration effect is also strongest. When the vehicle speed is too high and the driver does not brake, the speed sensor detects that the speed of the detection gear has reached the specified value. The control module will control the drive rod to extend, so that the sensing metal ring and the magnetic plate come closer to each other, decelerating the main shaft. When the speed further exceeds a certain value, the control module will directly control the brake pads to contact the brake disc for forced braking, ensuring the safety of the driver. The above structure reduces the vehicle speed when the brake pads brake, thereby reducing the wear of the brake pads. It can also intelligently control speed and brake, which not only saves vehicle costs but also greatly improves safety. Attached Figure Description

[0022] Fig. 1 This is a schematic diagram of the installation structure of this utility model;

[0023] Fig. 2 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0024] Fig. 3 This is a schematic diagram of the braking structure of this utility model.

[0025] In the diagram: 1. Frame, 2. Braking structure, 21. Slide rail, 22. Slider, 23. Angle iron, 24. Pull plate, 25. Telescopic rod, 26. First bearing seat, 27. Main shaft, 28. Rear wheel, 29. Drive rod, 210. Control module, 211. Detection gear, 212. Speed ​​sensor, 213. Brake disc, 214. Sensing metal ring, 215. Brake block, 216. Magnetic sheet, 3. Steering structure, 31. Second bearing seat, 32. Rotary drum, 33. Handle, 34. Wheel frame, 35. Hub motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figs. 1-3 This utility model provides a technical solution: a sled brake device, comprising: a frame 1;

[0028] Braking structure 2 is fixedly installed inside the frame 1 and located on the center line of the left end;

[0029] Steering structure 3 is fixedly installed inside the frame 1 and located on the center line of the right end;

[0030] Braking structure 2 includes: a pair of identical slide rails 21, a pair of identical sliders 22, a pair of identical angle irons 23, a pair of identical pull plates 24, a pair of identical telescopic rods 25, a pair of identical first bearings with seats 26, a main shaft 27, a pair of identical rear wheels 28, a pair of identical drive rods 29, a control module 210, a detection gear 211, a speed sensor 212, a pair of identical brake discs 213, a pair of identical sensing metal rings 214, a pair of identical brake blocks 215, and a pair of identical magnetic sheets 216.

[0031] A pair of slide rails 21 are fixedly mounted on the inner wall of the frame 1, and are symmetrically located on the front and rear sides of the center line of the right end of the frame 1. A pair of sliders 22 are movably mounted on the pair of slide rails 21, and are located at the center. A pair of angle irons 23 are fixedly mounted on the front and rear walls of the pair of sliders 22, and are located at the center. One end of a pair of pull plates 24 is fixedly mounted on the front and rear walls of the pair of angle irons 23, and is located on the center line of the left end. One end of a pair of telescopic rods 25 is rotatably mounted on the other end of the pair of pull plates 24, and the other end is rotatably mounted on the steering structure 3. A pair of first bearings 26 are fixedly mounted on the lower walls of the pair of angle irons 23, and are located at the center. One end of a main shaft 27 is movably passed through one of the first bearings 26, and the other end is movably passed through the other first bearing 26. A pair of rear wheels 28 are fixedly mounted on both ends of the main shaft 27, and are symmetrically located on the front and rear sides of the center line of the frame 1. The system comprises a pair of drive rods 29, one end of which is fixedly mounted on the frame 1, and the other end of which is fixedly mounted on the front and rear walls of the pull plate 24. The control module 210 is fixedly mounted on the upper wall of one of the angle irons 23 and located at the center. The detection gear 211 is fixedly mounted on one end of the main shaft 27. The speed sensor 212 is fixedly mounted on the lower wall of one of the angle irons 23 and is opposite to the edge of the detection gear 211. A pair of brake discs 213 are fixedly mounted on both ends of the main shaft 27 and are symmetrically located on the front and rear sides of the center line of the frame 1. A pair of sensing metal rings 214 are fixedly mounted on one end of the pair of brake discs 213 and are symmetrically located on the front and rear sides of the center line of the frame 1. A pair of brake blocks 215 are fixedly mounted on the lower wall of the frame 1 and are symmetrically located on the front and rear sides of the center line of the left end. A pair of magnetic plates 216 are fixedly mounted on the left wall of the pair of brake blocks 215 and are symmetrically located on the front and rear sides of the center line of the frame 1.

[0032] As a preferred option, the telescopic rod 25 is further designed to be telescopic to prevent the movement of the braking structure 2 from interfering with driving.

[0033] As a preferred option, the drive rod 29 is further designed to be a mechanism that can be driven to extend or retract by means of electricity, pneumatics, or hydraulics.

[0034] As a preferred embodiment, the control module 210 is connected to the speed sensor 212 and the drive rod 29, and can detect the signal from the speed sensor 212 and control the drive rod 29.

[0035] As a preferred option, the brake disc 213 is further designed as a stepped cylindrical structure, and the difference between its diameter and the size of the disc is greater than the wall thickness of the sensing metal ring 214.

[0036] As a preferred option, the right wall of the brake block 215 is arc-shaped and has a stepped structure, with the difference in step height being less than the thickness of the magnetic sheet 216.

[0037] As a preferred option, the brake disc 213 and the brake pad 215 have the same thickness and are flush at the front and rear.

[0038] As a preferred option, the sensing metal ring 214 is a metal that can generate magnetic eddy current effect in the magnetic sheet 216, and the materials of the sensing metal ring 214 and the magnetic sheet 216 can be interchanged without affecting the deceleration effect.

[0039] As a preferred embodiment, the steering structure 3 further includes: a pair of identical second bearings 31, a rotary drum 32, a handle 33, a wheel frame 34, and a hub motor 35;

[0040] A pair of second bearings 31 are fixedly mounted on the upper wall of the frame 1, and are symmetrically located on the front and rear sides of the right end center line. A rotating rod with the same structure is provided at the center of the front and rear walls of the rotating cylinder 32. The pair of rotating rods are movably inserted through the pair of second bearings 31, and one end of the rotating cylinder 32 is connected to a pair of pull rods. One end of the handle 33 is movably inserted into the rotating cylinder 32, and the other end extends out of the rotating cylinder 32. The wheel frame 34 is fixedly mounted on the lower wall of the handle 33 and is located at the center. The hub motor 35 is rotatably mounted on one end of the wheel frame 34.

[0041] As a preferred option, one end of the handle 33 is a stepped cylindrical structure, and its minimum diameter is consistent with the inner diameter of the rotating cylinder 32.

[0042] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0043] Example: According to the instruction manual attached Figs. 1-3It can be seen that the hub motor 35 provides power for the frame 1 to move forward. When the frame 1 moves forward, the rear wheel 28 will give the main shaft 27 a rightward force, causing the slider 22 to move to the right on the slide rail 21. At this time, the brake disc 213 and the sensing metal ring 214 are away from the brake block 215 and the magnetic plate 216, and do not interfere with each other. At this time, normal forward movement is possible. By turning the handle 33, the wheel frame 34 and the hub motor 35 are driven to rotate, and the forward direction can be controlled. When you want to brake, pull the handle 33 to the right. The handle 33 drives the rotating cylinder 32 to rotate in the second bearing 31, and pulls the lever to move to the left. Since the other end of the lever is connected to the pull plate 24, the slider 22 is pulled to the left on the slide rail 21 by the lever. The first bearing 26 installed below the angle iron 23 drives the main shaft 27 to move to the left. At this time, the sensing metal ring 214 and the magnetic plate 216 approach each other. Because the sensing metal ring 214 is under the action of the main shaft 27, it is in a state of continuous motion. During rotation, the sensing metal ring 214 and the magnetic plate 216 generate a magnetic eddy current effect, which decelerates the main shaft 27. When the handle 33 is pulled further, the brake disc 213 and the brake pad 215 come into contact, producing a braking effect. At this time, the distance between the sensing metal ring 214 and the magnetic plate 216 is the closest, and the deceleration effect is the strongest. When the vehicle speed is too high and the driver does not brake, the speed sensor 212 detects that the speed of the detection gear 211 has reached the specified value. The control module 210 will control the drive rod 29 to extend, so that the sensing metal ring 214 and the magnetic plate 216 approach each other, decelerating the main shaft 27. When the speed further exceeds a certain value, the control module 210 will directly control the brake pad 215 to contact the brake disc 213 for forced braking, ensuring the safety of the driver. The above structure reduces the vehicle speed when the brake pad 215 brakes, thereby reducing the wear of the brake pad 215 and enabling intelligent speed control braking.

[0044] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "fixed installation," "detachable installation," "movable connection," "movable through," and "movable set," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sled brake device, comprising: Frame (1); Braking structure (2) is fixedly installed inside the frame (1) and located on the center line of the left end; Steering structure (3) is fixedly installed inside the frame (1) and located on the center line of the right end; The braking structure (2) includes: a pair of identical slide rails (21), a pair of identical sliders (22), a pair of identical angle irons (23), a pair of identical pull plates (24), a pair of identical telescopic rods (25), a pair of identical first bearings (26), a main shaft (27), a pair of identical rear wheels (28), a pair of identical drive rods (29), a control module (210), a detection gear plate (211), a speed sensor (212), a pair of identical brake discs (213), a pair of identical sensing metal rings (214), a pair of identical brake blocks (215), and a pair of identical magnetic sheets (216). A pair of slide rails (21) are fixedly mounted on the inner wall of the frame (1) and are symmetrically positioned on the front and rear sides of the center line of the right end of the frame (1). A pair of sliders (22) are movably mounted on the pair of slide rails (21) and are located at the center. A pair of angle irons (23) are fixedly mounted on the front and rear walls of the pair of sliders (22) and are located at the center. One end of a pair of pull plates (24) is fixedly mounted on the front and rear walls of the pair of angle irons (23) and is located on the center line of the left end. One end of a pair of telescopic rods (25) is fixedly mounted on the front and rear walls of the pair of angle irons (23). The main shaft (27) is rotatably mounted on the other end of a pair of pull plates (24), and its other end is rotatably mounted on the steering structure (3). A pair of first seated bearings (26) are fixedly mounted on the lower wall of a pair of angle irons (23) and are located at the center. One end of the main shaft (27) is movably inserted through one of the first seated bearings (26), and its other end is movably inserted through the other first seated bearing (26). A pair of rear wheels (28) are fixedly mounted on both ends of the main shaft (27) and are located symmetrically on the front and rear sides of the center line of the frame (1). One end of each of the pair of drive rods (29) is fixedly mounted on the frame (1), and the other end is fixedly mounted on the front and rear walls of the pull plate (24). The control module (210) is fixedly mounted on the upper wall of one of the angle irons (23) and located at the center. The detection gear (211) is fixedly mounted on one end of the main shaft (27). The speed sensor (212) is fixedly mounted on the lower wall of one of the angle irons (23) and opposite to the edge of the detection gear (211). The pair of brake discs (213) are fixedly mounted on the main shaft. (27) At both ends, and respectively located on the front and rear sides of the center line of the frame (1) symmetrically, a pair of induction metal rings (214) are respectively fixedly fitted on one end of a pair of brake discs (213), and respectively located on the front and rear sides of the center line of the frame (1) symmetrically, a pair of brake blocks (215) are respectively fixedly installed on the lower wall of the frame (1), and respectively located on the front and rear sides of the center line of the left end symmetrically, a pair of magnetic pieces (216) are respectively fixedly installed on the left wall of a pair of brake blocks (215), and respectively located on the front and rear sides of the center line of the frame (1) symmetrically.

2. The sled brake device according to claim 1, characterized in that: The telescopic rod (25) is a telescopic structure to prevent the movement of the braking structure (2) from interfering with the driving.

3. The sled brake device according to claim 1, characterized in that: The drive rod (29) is a mechanism that can be driven to extend or retract by electric, pneumatic or hydraulic means.

4. The sled brake device according to claim 1, characterized in that: The control module (210) is connected to a speed sensor (212) and a drive rod (29), and can detect the signal from the speed sensor (212) and control the drive rod (29).

5. A sled brake device according to claim 1, characterized in that: The brake disc (213) has a stepped cylindrical structure, and the difference between its large and small diameters is greater than the wall thickness of the sensing metal ring (214).

6. A sled brake device according to claim 1, characterized in that: The right wall of the brake block (215) is arc-shaped and has a stepped structure, with the step height difference being less than the thickness of the magnetic sheet (216).

7. A sled brake device according to claim 1, characterized in that: The brake disc (213) and the brake pad (215) have the same thickness and are flush at the front and rear.

8. A sled brake device according to claim 1, characterized in that: The sensing metal ring (214) is a metal that can generate magnetic eddy current effect with the magnetic sheet (216), and the materials of the sensing metal ring (214) and the magnetic sheet (216) can be interchanged without affecting the deceleration effect.

9. A sled brake device according to claim 1, characterized in that: The steering structure (3) includes: a pair of identical second bearings (31), a rotary drum (32), a handle (33), a wheel frame (34), and a hub motor (35); A pair of second seated bearings (31) are fixedly mounted on the upper wall of the frame (1) and are symmetrically located on the front and rear sides of the center line of the right end. A rotating rod with the same structure is provided at the center of the front and rear walls of the rotating cylinder (32). The pair of rotating rods are movably inserted through the pair of second seated bearings (31) and one end of the rotating cylinder (32) is connected to a pair of pull rods. One end of the handle (33) is movably inserted into the rotating cylinder (32) and one end of the handle extends out of the rotating cylinder (32). The wheel frame (34) is fixedly mounted on the lower wall of the handle (33) and located at the center. The hub motor (35) is fixedly mounted on one end of the wheel frame (34).

10. A sled brake device according to claim 9, characterized in that: One end of the handle (33) is a stepped cylindrical structure, and its minimum diameter is consistent with the inner diameter of the rotating cylinder (32).

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