A comprehensive monitoring sensor for brake time of a hoist brake

Abstract

This utility model discloses a comprehensive monitoring sensor for the braking time of a start-stop mechanism brake, relating to the field of brake monitoring technology. The sensor includes an acceleration sensor, a high-voltage detection device, a brake wheel accessory, and a fixing device. The brake wheel accessory includes a mounting frame and a permanent magnet. The fixing device includes a mounting base, with a base fixedly connected to its upper surface. A top cover is positioned directly above the base, and a connecting buckle is provided at the connection between the base and the top cover. Both the base and the top cover contain PCB boards. The outer surface of the PCB boards contains a microcontroller, parallel-input / serial-output IC chips, a Hall effect ring array sensor, and electrical connection pads. This utility model achieves integrated monitoring of brake action time, braking time, running time, brake wheel speed, number of braking cycles, and brake anomalies.

Description

Technical Field

[0001] This utility model relates to the field of brake monitoring technology, specifically a comprehensive monitoring sensor for the braking time of a start-stop mechanism brake. Background Technology

[0002] In water conservancy and hydropower projects, gate hoists are key equipment, and the performance of their brakes directly affects the safety and operational efficiency of the equipment. SL41-2018 "Design Specification for Gate Hoists in Water Conservancy and Hydropower Projects" clearly stipulates strict requirements for parameters such as brake holding time and braking deceleration.

[0003] However, in practical engineering applications, existing technologies still have significant shortcomings in monitoring key parameters such as brake action time, braking time, and operating status. Traditional monitoring methods usually rely on manual detection or a single sensor, resulting in incomplete parameter monitoring. Existing technologies cannot simultaneously acquire multi-dimensional data such as brake action time, brake wheel speed, and number of braking cycles, making it difficult to comprehensively evaluate brake performance. Furthermore, existing monitoring technologies have poor real-time performance, manual detection is lagging, and a single sensor cannot achieve real-time data transmission and online analysis, making it difficult to meet the needs of automated control. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a comprehensive monitoring sensor for the braking time of a start-stop mechanism brake, thereby solving the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a comprehensive monitoring sensor for the braking time of a start-stop mechanism brake, comprising an acceleration sensor, a high-voltage detection device, a brake wheel accessory, and a fixing device. The brake wheel accessory includes a fixing frame and a permanent magnet. The fixing device includes a mounting base, on the upper surface of which a base is fixedly connected. A top cover is provided directly above the base. A connecting buckle is provided at the connection between the base and the top cover. Both the base and the top cover have PCB boards inside. The outer surface of the PCB board has a microcontroller, a parallel-input / serial-output IC chip, a Hall effect ring array sensor, and electrical connection pads.

[0006] Preferably, the outer surface of the accelerometer and the interior of the high-voltage detection device are provided with wires, and a junction box is fixedly connected to the outer surface of the base.

[0007] Preferably, the acceleration sensor and the high-voltage detection device are electrically connected to the junction box via wires, and the junction box is electrically connected to the PCB board.

[0008] Preferably, the PCB board is configured as a semi-circle, and the PCB board is adapted to the cavity inside the top cover and the base.

[0009] Preferably, the microcontroller and the parallel-in / serial-out IC chip are located on the same side of the PCB board, and the Hall ring array sensor and the electrical connection pads are located on the side of the PCB board away from the microcontroller and the parallel-in / serial-out IC chip.

[0010] Preferably, the outer surfaces of the base and the top cover are provided with observation scales, and the Hall ring array sensor is located on the side of the PCB board close to the observation scales.

[0011] Beneficial effects

[0012] This utility model provides a comprehensive monitoring sensor for the braking time of a start-stop mechanism brake. It has the following advantages:

[0013] 1. This integrated monitoring sensor for the braking time of the start-stop mechanism brake utilizes an acceleration sensor to detect changes in acceleration during brake arm movement, thereby determining the timing of brake arm movement. A high-voltage detection device identifies the power-on / power-off timing of the actuator based on the presence or absence of voltage input. A Hall effect ring array sensor on the PCB board detects the presence or absence of a magnetic field, determining the specific position and movement of the permanent magnet mounted on the brake wheel within the ring array. Through the coordinated operation of the acceleration sensor, high-voltage detection device, and Hall effect ring array sensor, integrated monitoring of brake action time, braking time, running time, brake wheel speed, number of braking cycles, and brake anomalies is achieved, enabling real-time online monitoring of multiple important brake parameters.

[0014] 2. The integrated monitoring sensor for braking time of the opening and closing mechanism, through the design of a semi-circular PCB board and a ring-shaped fixing device, optimizes the magnetic field detection range and reduces the installation complexity, thereby improving the stability and ease of maintenance of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a first-person perspective exploded view of the overall structure of this utility model;

[0017] Figure 3 This is a second-view exploded structural diagram of the entire utility model;

[0018] Figure 4 This is a schematic diagram of the PCB board structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall installation of this utility model.

[0020] In the diagram: 1. Accelerometer; 2. High-voltage detection device; 3. Brake wheel accessory; 301. Fixing frame; 302. Permanent magnet; 4. Fixing device; 401. Mounting base; 402. Base; 403. Junction box; 404. Top cover; 405. Connecting buckle; 406. PCB board; 4061. Microcontroller; 4062. Parallel input / serial output IC chip; 4063. Hall effect ring array sensor; 4064. Electrical connection pad; 407. Observation scale; 5. Wire. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] like Figure 1-5 As shown, this utility model provides a comprehensive monitoring sensor for the braking time of a start-stop mechanism brake, including an acceleration sensor 1, a high-voltage detection device 2, a brake wheel accessory device 3, and a fixing device 4. The brake wheel accessory device 3 includes a fixing frame 301 and a permanent magnet 302. The fixing device 4 includes a mounting base 401, with a base 402 fixedly connected to the upper surface of the mounting base 401. A top cover 404 is provided directly above the base 402. A connecting buckle 405 is provided at the connection between the base 402 and the top cover 404. A PCB board 406 is provided inside both the base 402 and the top cover 404. A microcontroller 4061, a parallel-input serial-output IC chip 4062, a Hall ring array sensor 4063, and electrical connection pads 4064 are provided on the outer surface of the PCB board 406. The permanent magnet 302 is axially magnetized. The acceleration sensor 1 is used to detect the acceleration change when the brake arm moves, and then determine the time node when the brake arm moves.

[0024] Specifically, wires 5 are provided on the outer surface of the accelerometer 1 and inside the high-voltage detection device 2. A junction box 403 is fixedly connected to the outer surface of the base 402. The accelerometer 1 and the high-voltage detection device 2 are electrically connected to the junction box 403 via wires 5. The junction box 403 is electrically connected to the PCB board 406. The high-voltage detection device 2 consists of a shell and a circuit board. One end is electrically connected to the actuator power supply of the brake via wire 5, and the other end enters the junction box 403 of the fixed device 4 via wire 5 and is electrically connected to the PCB board 406 of the fixed device 4. The high-voltage detection device 2 can determine the power-on / power-off time of the actuator by whether there is voltage input. The PCB board 406 is set as a semi-circle. The PCB board 406 is connected to the top cover. The cavity inside the base 404 and the top cover 402 is adapted to each other. The microcontroller 4061 and the parallel-input serial-output IC chip 4062 are located on the same side of the PCB board 406. The Hall ring array sensor 4063 and the electrical connection pad 4064 are located on the side of the PCB board 406 away from the microcontroller 4061 and the parallel-input serial-output IC chip 4062. The outer surface of the base 402 and the top cover 404 is provided with observation scale 407. The Hall ring array sensor 4063 is located on the side of the PCB board 406 close to the observation scale 407. The Hall ring array sensor 4063 on the PCB board 406 can determine the specific position and movement of the permanent magnet 302 installed on the brake wheel in the ring array by detecting whether there is a magnetic field.

[0025] The working principle and beneficial effects of the above embodiments.

[0026] When assembling this device, two semi-circular PCB boards 406 are respectively installed into the annular cavities of the upper cover 404 and the base 402. The side of the PCB board 406 with the Hall ring array sensor 4063 is close to the sensing surface of the upper cover 404 or the base 402. The electrical connectors of the two semi-circular PCB boards 406 are led out by cables for later use. The accelerometer 1 is connected to the wire 5 for later use. The two ends of the high-voltage detection device 2 are respectively connected to the wire 5 for high-voltage detection and the wire 5 for low-voltage communication for later use. The permanent magnet 302 is pressed into the fixing frame 301 according to the predetermined magnetic pole direction.

[0027] When installing this device onto the brake, after measuring and calculating the installation position, install the base 402 into the fixed position via the mounting bracket 401, ensuring that the center of the arc of the base 402 is concentric with the axis of the brake shaft and that the sensing surface of the base 402 maintains a gap of approximately 10mm with the edge of the brake wheel. The brake wheel accessory 3 is then bonded tightly to the inner diameter of the brake wheel. During bonding, the position should be adjusted so that the permanent magnet 302 and the sensing surface of the base 402 maintain a relatively close distance without interference. The upper cover 404 is then installed onto the base 402. The upper cover 404 and the arc of the base 402 should form a ring, and the sensing surface of the upper cover 404 should be on the same plane as the sensing surface of the base 402. After installation, connect the two ends using two connecting buckles 405. Place the cable leading from the PCB board 406 inside the upper cover 404 and the cable leading from the PCB board 406 inside the base 402 into the junction box 403 and make an electrical connection. Magnetically install the acceleration sensor 1 onto the brake arm and lead the wire 5 connected to the acceleration sensor 1 into the junction box 403 on the base 402 for electrical connection. Make an electrical connection between the wire 5 of the high-voltage detection device 2 used for high-voltage detection and the high-voltage power of the actuator. Lead the wire 5 of the high-voltage detection device 2 used for low-voltage communication into the junction box 403 on the base 402 for electrical connection. Lead out the power supply and upper computer communication wires from the electrical connection box of the base 402.

[0028] During testing, when the brake changes from closed to open, the brake's action sequence is as follows: the actuator is energized, the actuator actuates (brake arm actuates), the brake wheel begins to rotate, and the brake wheel reaches its rated speed. At this time, when the actuator is energized, the high-voltage detection device 2 transmits the energization information to the microcontroller 4061. The microcontroller 4061 records the energization time and sets it as zero point (T0). When the actuator pushes the brake arm to actuate, the acceleration sensor 1 detects the acceleration of the brake arm in the running direction and transmits the interruption information to the microcontroller 4061. 61. Record the action time, denoted as T1. When the brake wheel starts to rotate, the microprocessor scans and monitors the Hall ring array sensor 4063 in real time and detects the change in the magnetic field position of the permanent magnet 302, which determines that the brake wheel is in action, and this is recorded as T2. The microprocessor also monitors the brake wheel speed and the number of rotations at the same time. Thus, the judgment data that can be obtained when the brake is opened are: the action time of the brake (when it is opened) is: the action time of the brake arm minus the energization time of the brake, i.e., T1-T0; the brake wheel speed is calculated by the microprocessor when the brake wheel is rotating.

[0029] When the brake is in the open-to-close state, the brake action sequence is as follows: the actuator loses power, the actuator actuates (brake arm actuates), the brake wheel begins to decelerate, and the brake wheel comes to a stop. At this time, when the actuator loses power, the high-voltage detection device 2 transmits the power loss information to the microcontroller 4061. The microcontroller 4061 records the power loss time and sets it to zero (t0). When the actuator pushes the brake arm to actuate, the acceleration sensor 1 detects the acceleration of the brake arm in the running direction and transmits the interrupt information to the microcontroller 4061. The microcontroller 4061 records the action time and sets it to t1. When the brake wheel stops, the microprocessor monitors the Hall ring array in real time and detects that the position of the permanent magnet's magnetic field no longer changes, thus determining that the brake wheel is stationary. This is recorded as t2. Therefore, the following judgment data can be obtained when the brake is closed: the brake's action time (when closed) is: brake arm action time minus brake de-energization time, i.e., t1-t0; the brake's braking time is: the time the brake wheel is stationary minus brake de-energization time, i.e., t2-t0; the running time is the brake de-energization time minus brake energization time, i.e., t0-T0; the real-time speed of the brake wheel is calculated by the microprocessor; each cycle from energization to de-energization of the brake is recorded as one brake count; brake anomaly judgment: such as the brake not acting after energization / de-energization, or the brake hook slipping during de-energization, can all be judged through the action logic of energization / de-energization detection, brake arm action, and brake wheel rotation.

[0030] In summary, this device achieves integrated monitoring of brake action time, braking time, running time, brake wheel speed, number of braking cycles, and brake malfunctions, enabling real-time online monitoring of multiple important brake parameters.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] 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 comprehensive monitoring sensor for braking time of a start-stop mechanism brake, comprising an acceleration sensor (1), a high-voltage detection device (2), a brake wheel accessory device (3), and a fixing device (4), characterized in that: The brake wheel accessory (3) includes a fixing frame (301) and a permanent magnet (302). The fixing device (4) includes a mounting base (401). A base (402) is fixedly connected to the upper surface of the mounting base (401). A top cover (404) is provided directly above the base (402). A connecting buckle (405) is provided at the connection between the base (402) and the top cover (404). A PCB board (406) is provided inside both the base (402) and the top cover (404). A microcontroller (4061), a parallel input / serial output IC chip (4062), a Hall ring array sensor (4063), and electrical connection pads (4064) are provided on the outer surface of the PCB board (406).

2. The brake time integrated monitoring sensor of claim 1, wherein: The outer surface of the accelerometer (1) and the interior of the high-voltage detection device (2) are provided with wires (5), and a junction box (403) is fixedly connected to the outer surface of the base (402).

3. The brake time integrated monitoring sensor of claim 2, wherein: The acceleration sensor (1) and the high-voltage detection device (2) are electrically connected to the junction box (403) via wires (5), and the junction box (403) is electrically connected to the PCB board (406).

4. The brake time integrated monitoring sensor of claim 1, wherein: The PCB board (406) is configured as a semi-circle, and the PCB board (406) is adapted to the cavity inside the top cover (404) and the base (402).

5. The brake time integrated monitoring sensor of claim 1, wherein: The microcontroller (4061) and the parallel-in / serial-out IC chip (4062) are located on the same side of the PCB board (406), while the Hall ring array sensor (4063) and the electrical connection pad (4064) are located on the side of the PCB board (406) away from the microcontroller (4061) and the parallel-in / serial-out IC chip (4062).

6. The brake time integrated monitoring sensor of claim 1, wherein: The outer surfaces of the base (402) and the top cover (404) are provided with observation scales (407), and the Hall ring array sensor (4063) is disposed on the side of the PCB board (406) close to the observation scales (407).

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