A multi-power hybrid braking device and braking system

Abstract

This utility model discloses a multi-power hybrid braking device and system. The multi-power hybrid braking device includes a main housing, a drive assembly, a movable threaded tube, a first movable push rod, and a pneumatic assembly. The main housing has a first cavity and a second cavity. The drive assembly is located in the first cavity and includes a drive motor and an output threaded tube connected to it. The movable threaded tube is engaged with the output threaded tube. The first movable push rod is slidably connected inside the movable threaded tube, with one end extending outside the tube. The pneumatic assembly includes a rubber bladder, an outer shell, a second movable push rod, and a reset elastic element. The rubber bladder, the second cavity, and the outer shell respectively enclose the first air chamber and the second air chamber. One end of the second movable push rod is fixed to the rubber bladder, and the other end extends into the movable threaded tube. In use, when the second air chamber is inflated, the second movable push rod pushes the first movable push rod; when the first air chamber is inflated, the second movable push rod releases the first movable push rod, thereby completing the braking and releasing actions.

Description

Technical Field

[0001] This utility model relates to the field of automotive braking technology, specifically to a multi-power hybrid braking device and braking system. Background Technology

[0002] Currently, most braking devices on the market employ a single power drive method. Among them, electric motor braking is widely used in various equipment due to its advantages such as high control precision, fast response speed, and ease of automation. Electric motor braking typically uses a drive motor to drive a transmission mechanism to output braking force, which in turn pushes the brake caliper and other actuators to achieve precise braking. It is suitable for scenarios with high braking precision requirements.

[0003] However, in actual operation, motor braking devices are highly susceptible to braking failure due to unexpected factors such as motor malfunction, circuit failure, power supply interruption, or transmission mechanism jamming. When motor braking fails, if there is no effective backup braking mechanism, the equipment will be unable to brake in time, which may lead to serious safety accidents such as equipment collision, damage, and loss of operational control. Especially in critical areas such as heavy-duty equipment and rail transit vehicles, the losses caused by such accidents are often incalculable. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a multi-power hybrid braking device and braking system, which aims to solve the technical problem that the existing braking system cannot effectively brake when the motor fails or the power supply is interrupted.

[0005] To address the aforementioned technical problems, in a first aspect, this application provides a multi-power hybrid braking device, comprising:

[0006] The main housing has a first cavity and a second cavity formed therein;

[0007] A drive assembly, which is disposed in the first cavity, includes a drive motor and an output threaded pipe that is drively connected to the drive motor.

[0008] A movable threaded tube, which is engaged with the output threaded tube;

[0009] The first movable push rod is slidably connected inside the movable threaded tube, and one end extends out of the outside of the movable threaded tube;

[0010] A pneumatic assembly, comprising a rubber bladder, an outer shell, a second movable push rod, and a reset elastic element, wherein the rubber bladder and the second cavity enclose a first air chamber, and the rubber bladder and the outer shell enclose a second air chamber, wherein one end of the second movable push rod is fixedly connected to the rubber bladder, and the other end extends into the movable threaded tube;

[0011] The main housing has a first vent on its inner wall, which is connected to the first air chamber; the outer housing has a second vent on its inner wall, which is connected to the second air chamber.

[0012] In one possible implementation, the drive assembly further includes a speed reducer, through which the drive motor is connected to the output threaded tube.

[0013] In one possible implementation, the pneumatic assembly further includes a fastener, through which the rubber bladder is pressed between the main housing and the outer housing.

[0014] In one possible implementation, the reset elastic element includes a first reset spring and a second reset spring, wherein the first reset spring is disposed in the first air chamber and the second reset spring is disposed in the second air chamber.

[0015] In one possible implementation, the end of the second movable push rod near the rubber bladder is located at the first abutment, the inner wall of the second cavity is provided with a second abutment, and the two ends of the first return spring abut against the first abutment and the second abutment respectively.

[0016] In one possible implementation, the end of the rubber bladder away from the first air chamber is provided with an abutment, the inner wall of the outer shell is provided with a third abutment, and the two ends of the second return spring abut against the abutment and the third abutment, respectively.

[0017] In one possible implementation, a seal is also included, which is disposed at the end of the movable threaded tube.

[0018] In one possible implementation, the first movable push rod has a force-receiving part at one end of the movable threaded tube, and the diameter of the force-receiving part is larger than the diameter of other parts of the first movable push rod.

[0019] In one possible implementation, a sensor assembly is also included, comprising a rotating gear, a transmission rod fixedly connected to the rotating gear, and an angle sensor. The rotating gear is engaged with the movable threaded tube, and the angle sensor is located at the end of the transmission rod for detecting the rotation angle of the transmission rod.

[0020] Secondly, this application also provides a braking system, including a multi-power hybrid braking device as described in the first aspect and a brake caliper, the brake caliper including a caliper seat and a movable caliper slidably connected to the caliper seat, the first movable push rod being used to push the movable caliper to achieve braking.

[0021] Compared to existing technologies, the multi-power hybrid braking device of this utility model includes a main housing, a drive assembly, a movable threaded tube, a first movable push rod, and a pneumatic assembly. The main housing has a first cavity and a second cavity formed inside. The drive assembly is located in the first cavity and includes a drive motor and an output threaded tube connected to it. The movable threaded tube is engaged with the output threaded tube. The first movable push rod is slidably connected inside the movable threaded tube, with one end extending outside the tube. The pneumatic assembly includes a rubber bladder, an outer shell, a second movable push rod, and a reset elastic element. The rubber bladder, the second cavity, and the outer shell respectively enclose the first and second air chambers. One end of the second movable push rod is fixed to the rubber bladder, and the other end extends into the movable threaded tube. In actual use, when the second air chamber is inflated, the second movable push rod pushes the first movable push rod; when the first air chamber is inflated, the second movable push rod releases the first movable push rod, thereby completing the braking and releasing actions. The braking device of this application combines the mechanical transmission power driven by the drive motor with the pneumatic power driven by air pressure, forming a multi-power braking mode. When the drive motor fails and cannot transmit power, the second air chamber can be filled with air, and the air pressure can be used to push the second movable push rod to push the first movable push rod to achieve braking. This avoids brake failure due to the failure of a single power source and greatly improves the safety redundancy of the braking system. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of a multi-power hybrid braking device in one embodiment of this application;

[0023] Figure 2 This is a three-dimensional structural diagram of a multi-power hybrid braking device in one embodiment of this application. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; 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 connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] As shown in Figures 1-2, this application provides a multi-power hybrid braking device, including a main housing 100, a drive assembly 200, a movable threaded tube 300, a first movable push rod 400, and a pneumatic assembly 500.

[0028] The main housing 100 serves as the basic mounting carrier for the braking device, and its interior contains two independent cavities: a first cavity 110 and a second cavity 120. These two cavities provide independent mounting spaces for the drive assembly and the pneumatic assembly, respectively, ensuring that the operation of each component does not interfere with each other.

[0029] The drive assembly 200 is disposed within the first cavity 110 and includes a drive motor 210 and an output threaded pipe 220 that is driveably connected to the drive motor 210. The drive motor 210 serves as an electric drive source, converting electrical energy into mechanical energy and transmitting power through the output threaded pipe 220 to provide electric drive support for braking actions.

[0030] In one embodiment, the drive assembly 200 further includes a reducer 230. The drive motor 210 is connected to the output threaded pipe 220 via the reducer 230. The reducer 230 can adjust the output speed and torque, thereby improving the power output stability and adaptability of the drive assembly 200.

[0031] For example, the output shaft of the drive motor 210 is connected to the reducer 230, and the output end of the reducer 230 is connected to the output threaded tube 220. The transmission connection can be a gear connection. In this way, the output speed of the output threaded tube 220 can be adjusted by the reducer 230.

[0032] In this application, the movable threaded tube 300 and the output threaded tube 220 are engaged to achieve threaded transmission. The first movable push rod 400 is slidably connected inside the movable threaded tube 300, and one end extends out of the movable threaded tube 300. The extended end is used to connect with the braking actuator to transmit thrust.

[0033] In one possible implementation, the first movable push rod 400 has a force-receiving part 410 at one end of the movable threaded tube 300. The diameter of the force-receiving part 410 is larger than the diameter of other parts of the first movable push rod 400, which can increase the force-receiving area, make the thrust transmission smoother, and avoid local stress concentration.

[0034] In one possible implementation, the braking device of this application further includes a seal 600. The seal 600 is disposed at the end of the movable threaded tube 300 and is used to enhance the sealing performance of the connection between the movable threaded tube 300 and related components, preventing dust, moisture and other impurities from entering and affecting the transmission accuracy.

[0035] The pneumatic component 500 is the core of the pneumatic drive, including a rubber bladder 510, an outer shell 520, a second movable push rod 530, and a reset elastic element. The rubber bladder 510 and the second cavity 120 enclose a first air chamber 540, and the rubber bladder 510 and the outer shell 520 enclose a second air chamber 550. One end of the second movable push rod 530 is fixedly connected to the rubber bladder 510, and the other end extends into the movable threaded tube 300, which can cooperate with the first movable push rod 400 to form a thrust transmission engagement.

[0036] In one possible implementation, the pneumatic assembly 500 further includes a fastener 560. The rubber bladder 510 is pressed between the main housing 100 and the outer housing 520 by the fastener 560, thereby achieving a secure installation of the rubber bladder 510 and ensuring the sealing reliability of the first air chamber 550 and the second air chamber 560.

[0037] In one possible implementation, the reset elastic element includes a first reset spring 570 and a second reset spring 580. The first reset spring 570 is located in the first air chamber 540, and the second reset spring 580 is located in the second air chamber 550. The dual reset spring structure can improve the reset response speed and reset accuracy of the second movable push rod 530.

[0038] In the corresponding installation structure, the second movable push rod 530 has a first abutment part 531 at the end near the rubber bladder 510, and the inner wall of the second cavity 120 has a second abutment part 121. The two ends of the first return spring 570 abut against the first abutment part 531 and the second abutment part 121 respectively. The rubber bladder 510 has an abutment member 590 at the end away from the first air chamber 540, and the inner wall of the outer shell 520 has a third abutment part 521. The two ends of the second return spring 580 abut against the abutment member 590 and the third abutment part 521 respectively.

[0039] In one possible implementation, the inner wall of the main housing 100 is provided with a first vent 130, which communicates with the first air chamber 550 to enable the inflation and deflation of the first air chamber 540; the inner wall of the outer housing 520 is provided with a second vent 522, which communicates with the second air chamber 550 to enable the inflation and deflation of the second air chamber 550.

[0040] In one embodiment, the braking device of this application further includes a sensor assembly 700. The sensor assembly 700 includes a rotating gear 710, a transmission rod 720 fixedly connected to the rotating gear 710, and an angle sensor 730. The rotating gear 710 is meshed with a movable threaded tube 300, and the angle sensor 730 is located at the end of the transmission rod 720. By detecting the rotation angle of the transmission rod 720, the angle sensor 730 can indirectly obtain the displacement information of the movable threaded tube 300, providing data support for brake stroke monitoring.

[0041] The braking process of the multi-power hybrid braking device in this application is as follows:

[0042] Electric braking process: When an electric braking signal is received, the drive motor 210 starts to run, and the power is transmitted through the output threaded tube 220 to the meshing movable threaded tube 300, converting the rotational motion into the linear motion of the movable threaded tube 300, which in turn pushes the first movable push rod 400 to extend outward, thereby realizing electric driving braking.

[0043] Pneumatic braking process: When air is injected into the second air chamber 550, the second movable push rod 530 is subjected to the first direction (such as...). Figure 1 The pneumatic thrust (in the X1 direction) applies a thrust to the first movable push rod 400, pushing it to extend and achieve pneumatic braking; when inflating the first air chamber 540, the second movable push rod 530 is subjected to a second direction (such as... Figure 1 The air pressure thrust (in the X2 direction) moves away from the first movable push rod 400, releasing the first movable push rod 400 and releasing the brake.

[0044] Reset process: When the brake is released, the elastic force of the first reset spring 570 and the second reset spring 580, in conjunction with the air pressure adjustment, drives the second movable push rod 530 and the rubber bladder 510 to return to their initial positions.

[0045] Based on this, the multi-power hybrid braking device of this application can achieve braking independently through electric drive or pneumatic drive, or work together to improve the braking effect. In the event of a failure of a single power source, the other power source can ensure normal braking function and improve the reliability of the braking system.

[0046] This application also provides a braking system, including the multi-power hybrid braking device as described above and a brake caliper (not shown in the figure). The brake caliper includes a caliper seat and a movable caliper slidably connected to the caliper seat. The first movable push rod 400 of the multi-power hybrid braking device is used to push the movable caliper, so that the movable caliper engages with the fixed caliper on the caliper seat, clamping the brake disc to achieve braking.

[0047] Obviously, the above are only preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-power hybrid braking device, characterized in that, include: The main housing (100) has a first cavity (110) and a second cavity (120) formed therein. A drive assembly (200) is disposed in the first cavity (110) and includes a drive motor (210) and an output threaded pipe (220) that is driven and connected to the drive motor (210). A movable threaded tube (300) is engaged with the output threaded tube (220); The first movable push rod (400) is slidably connected inside the movable threaded tube (300), and one end extends out of the movable threaded tube (300); A pneumatic assembly (500) includes a rubber bladder (510), an outer shell (520), a second movable push rod (530), and a reset elastic element. The rubber bladder (510) and the second cavity (120) enclose a first air chamber (540), and the rubber bladder (510) and the outer shell (520) enclose a second air chamber (550). One end of the second movable push rod (530) is fixedly connected to the rubber bladder (510), and the other end extends into the movable threaded tube (300). The inner wall of the main housing (100) is provided with a first air hole (130), which is connected to the first air chamber (540); the inner wall of the outer housing (520) is provided with a second air hole (522), which is connected to the second air chamber (550).

2. The multi-power hybrid braking device as described in claim 1, characterized in that, The drive assembly (200) also includes a reducer (230), and the drive motor (210) is connected to the output threaded pipe (220) via the reducer (230).

3. The multi-power hybrid braking device as described in claim 1, characterized in that, The pneumatic assembly (500) also includes a fastener (560), and the rubber bladder (510) is pressed between the main housing (100) and the outer housing (520) by the fastener (560).

4. The multi-power hybrid braking device as described in claim 1, characterized in that, The reset elastic element includes a first reset spring (570) and a second reset spring (580), the first reset spring (570) being disposed in the first air chamber (540) and the second reset spring (580) being disposed in the second air chamber (550).

5. The multi-power hybrid braking device as described in claim 4, characterized in that, The second movable push rod (530) is located at one end near the rubber bladder (510) at the first abutment (531), and the inner wall of the second cavity (120) is provided with a second abutment (121). The two ends of the first return spring (570) abut against the first abutment (531) and the second abutment (121) respectively.

6. The multi-power hybrid braking device as described in claim 4, characterized in that, The rubber bladder (510) has an abutment (590) at one end away from the first air chamber (540), and the inner wall of the outer shell (520) has a third abutment (521). The two ends of the second return spring (580) abut against the abutment (590) and the third abutment (521) respectively.

7. The multi-power hybrid braking device as described in claim 1, characterized in that, It also includes a seal (600) disposed at the end of the movable threaded tube (300).

8. The multi-power hybrid braking device as described in claim 1, characterized in that, The first movable push rod (400) has a force-receiving part (410) at one end of the movable threaded tube (300), and the diameter of the force-receiving part (410) is larger than the diameter of other parts of the first movable push rod (400).

9. The multi-power hybrid braking device as described in claim 1, characterized in that, It also includes a sensor assembly (700), which includes a rotating gear (710), a transmission rod (720) fixedly connected to the rotating gear (710), and an angle sensor (730). The rotating gear (710) is meshed with the movable threaded tube (300), and the angle sensor (730) is located at the end of the transmission rod (720) for detecting the rotation angle of the transmission rod (720).

10. A braking system, characterized in that, The device includes a multi-power hybrid braking device as described in any one of claims 1-9 and a brake caliper, wherein the brake caliper includes a caliper seat and a movable caliper slidably connected to the caliper seat, and the first movable push rod (400) is used to push the movable caliper to achieve braking.

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