Elevator running state detection and safety guarantee device based on temperature vibration

Abstract

The utility model discloses an elevator running state detection and safety guarantee device based on temperature vibration, and relates to the technical field of elevators, the elevator running state detection and safety guarantee device comprises an elevator shaft and a machine room located at the top of the elevator shaft, a guide rail support is arranged in the elevator shaft, a car frame is movably installed in the guide rail support, and a car body is arranged in the middle of the car frame. A bearing beam is arranged at the top of the guide rail support, and a traction machine is fixedly installed at the top of the bearing beam. According to the brake state monitoring device, the temperature measuring assembly is arranged, especially the non-contact temperature sensor and the thermocouple are used for monitoring the temperature of the surface of the brake disc and the temperature of the brake pad of the band-type brake respectively, so that state monitoring of a brake system is indirectly achieved, and when the temperature of any part of the brake pad or the brake disc is abnormally high, the brake pad or the brake disc is not damaged. If yes, the brake system may have a friction condition, so that the temperature is abnormal, and a maintainer can maintain the brake system in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field especially relates to a kind of based on temperature vibration's elevator operating state detection and safety assurance device. BACKGROUND

[0002] In modern high-rise building, elevator as important vertical traffic tool, has brought great convenience for people's life and work.Elevator is mainly composed of car, traction system, control system, safety device etc..Among them, traction system is connected by steel wire rope with car and counterweight, and is driven by motor to rotate traction sheave, realizes the up and down operation of car.Safety device includes speed governor, safety tongs, buffer etc., for ensuring the safety of passengers when elevator fails.Elevator's normal operation cannot do without reliable braking system, and band brake as the key component of braking system, plays a vital role.Band brake usually adopts electromagnetic or mechanical structure, and realizes the braking of car by the friction of brake shoe and brake wheel.In the process of elevator operation, band brake needs to act in time and accurately according to the instruction of control system, to ensure the safe stop and stationary state of elevator.

[0003] Elevator can be affected by various external forces in the process of operation, such as car sway, guide rail unevenness etc..These external forces can cause the contact state between brake shoe and brake wheel of band brake to change, thereby causing eccentric wear.Band brake eccentric wear will cause the contact area between brake shoe and brake wheel to decrease, thereby reducing braking friction force.This will make the braking performance of elevator decline, and brake distance prolong, increase the risk of elevator top or squat bottom accident when stopping.Eccentric wear will make some parts of band brake bear excessive pressure and friction force, thereby accelerating the wear and damage of these parts.Therefore, the state of band brake needs to be monitored to ensure the safety of elevator. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of based on temperature vibration's elevator operating state detection and safety assurance device, realize the monitoring of the state of elevator, ensure elevator safety.

[0005] In order to achieve the above object, the utility model provides a kind of based on temperature and vibration's elevator operating state detection and safety guarantee device, including elevator shaft and the machine room located at the top of elevator shaft, the guide rail support is equipped in the elevator shaft, the car frame is movably installed in the guide rail support, the middle part of the car frame is equipped with car body, the top of the guide rail support is equipped with bearing beam, the top of the bearing beam is fixedly installed with traction machine, the traction machine includes double-shaft extension motor, one output of the double-shaft extension motor is equipped with speed reducer, the output of the speed reducer is equipped with roller, the roller is lifted by winding cable control car frame, the ground of the machine room is equipped with access hole;Another output of the double-shaft extension motor is equipped with brake disc, the side of the brake disc is equipped with band brake;The top of the bearing beam is equipped with shock-absorbing seat, temperature measuring component is equipped on the shock-absorbing seat, the temperature measuring component includes magnetic base, the magnetic base is fixed on the surface of shock-absorbing seat by magnetic attraction, the side of the magnetic base is equipped with switch knob, the top of the magnetic base is equipped with adjusting bracket, one end of the adjusting bracket is movably connected with mounting bracket, non-contact temperature sensor is equipped on the mounting bracket.

[0006] In some embodiments, the brake pad side of the band brake is provided with a temperature measuring hole, a thermocouple is arranged in the temperature measuring hole, and the non-contact temperature sensor faces the surface of the brake disc.

[0007] In some embodiments, the shock-absorbing seat includes a mounting plate and an I-beam, the mounting plate is located at the top of the I-beam, a first shock-absorbing pad is arranged between the mounting plate and the I-beam, the mounting plate and the I-beam are connected by first bolts, and a spring is arranged between the nut of the first bolt and the mounting plate.

[0008] In some embodiments, a gateway box and a vibration acceleration sensor are further included, the vibration acceleration sensor is arranged at the top center of the car frame, the gateway box is arranged at the top of the shock-absorbing seat, and the vibration acceleration sensor is electrically connected with the gateway box.

[0009] In some embodiments, the vibration acceleration sensor includes a mounting shell, the mounting shell is a stainless steel cylinder, a second mounting base is arranged at the bottom of the mounting shell, the second mounting base is fixedly installed at the top of the car frame, and a transmission antenna is arranged at the side of the mounting shell.

[0010] In some embodiments, the gateway box includes a mounting box, a receiving antenna electrically connected with the transmission antenna is arranged at the side of the mounting box, and a through slot for the receiving antenna to pass through is formed in the top of the mounting plate.

[0011] In some embodiments, a first mounting base is arranged at the bottom of the mounting box, the side of the first mounting base is fixedly installed at the top of the shock-absorbing seat by second bolts, and a second shock-absorbing pad is arranged between the first mounting base and the shock-absorbing seat.

[0012] Compared with related technologies, the elevator operation status detection and safety assurance device based on temperature vibration provided by this utility model has the following beneficial effects:

[0013] This utility model provides an elevator operation status detection and safety assurance device based on temperature vibration. By setting up temperature measuring components, especially using non-contact temperature sensors and thermocouples, the surface of the brake disc and the brake pads of the brake are monitored to indirectly monitor the status of the braking system. When the temperature of any component of the brake pads or brake disc is abnormally high, the braking system may have friction, which will lead to abnormal temperature, so that maintenance personnel can maintain the braking system in a timely manner.

[0014] This utility model provides an elevator operation status detection and safety assurance device based on temperature vibration. A first damping pad is set between the I-beam and the mounting plate in the damping seat, and is fixed with a first bolt with a spring to improve the damping effect. 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 schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model;

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

[0019] Figure 5 This is a schematic diagram of the structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of this utility model.

[0021] Numbered in the diagram: 1. Elevator shaft; 2. Machine room; 3. Guide rail support; 4. Car frame; 5. Car body; 6. Load-bearing beam; 7. Traction machine; 8. Reducer; 9. Roller; 10. Inspection port; 11. Vibration damping seat; 12. Gateway box; 13. Display; 14. Temperature measuring component; 15. Vibration acceleration sensor; 71. Brake disc; 72. Holding brake; 111. Mounting plate; 112. I-beam; 113. First vibration damping pad; 114. 115. Spring; 116. First bolt; 121. Through slot; 122. Mounting box; 123. First mounting base; 124. Second shock absorber; 125. Receiving antenna; 141. Magnetic base; 142. Switch knob; 143. Adjustment bracket; 144. Mounting bracket; 145. Non-contact temperature sensor; 146. Thermocouple; 151. Mounting housing; 152. Second mounting base; 153. Transmission antenna. Detailed Implementation

[0022] Example 1

[0023] This embodiment provides an elevator operation status detection and safety assurance device based on temperature vibration, such as... Figures 1-6 As shown, this utility model includes an elevator shaft 1 and a machine room 2 located at the top of the elevator shaft 1. A guide rail support 3 is provided in the elevator shaft 1, and a car frame 4 is movably installed in the guide rail support 3. A car body 5 is located in the middle of the car frame 4. A load-bearing beam 6 is provided at the top of the guide rail support 3, and a traction machine 7 is fixedly installed at the top of the load-bearing beam 6. The traction machine 7 includes a dual-shaft extension motor, a reducer 8 is provided at one output end of the dual-shaft extension motor, and a roller 9 is provided at the output end of the reducer 8. The roller 9 controls the lifting and lowering of the car frame 4 by winding a cable. An inspection port 10 is provided on the floor of the machine room 2; the dual-shaft extension... Another output end of the motor is equipped with a brake disc 71, and a brake 72 is provided on the side of the brake disc 71. A shock absorber 11 is provided on the top of the load-bearing beam 6, and a temperature measuring component 14 is provided on the shock absorber 11. The temperature measuring component 14 includes a magnetic base 141, which is magnetically fixed to the surface of the shock absorber 11. A switch knob 142 is provided on the side of the magnetic base 141, and an adjustment bracket 143 is provided on the top of the magnetic base 141. One end of the adjustment bracket 143 is movably connected to a mounting bracket 144, which is equipped with a non-contact temperature sensor 145. A temperature measuring hole is provided on the side of the brake pad of the brake 72, and a thermocouple 146 is provided in the temperature measuring hole. The non-contact temperature sensor 145 faces the surface of the brake disc 71.

[0024] In this embodiment, the dual-shaft extension motor of the traction machine 7 starts, and the torque is increased by the reducer 8, which drives the roller 9 to wind the cable to lift the car frame 4 and the car body 5. The temperature monitoring components 14, specifically using non-contact temperature sensors 145 and thermocouples 146, monitor the temperature of the surface of the brake disc 71 and the brake pads of the brake 72, respectively, to indirectly monitor the status of the braking system. If any component of the brake pads or brake disc 71 experiences abnormally high temperatures, the braking system may be experiencing friction, leading to abnormal temperatures, requiring maintenance personnel to repair the braking system.

[0025] When the switch on the base of the temperature measuring component 14 is switched to OFF, the magnet stops adhering, making disassembly convenient; when switched to ON, the magnet firmly adheres to the shock-absorbing base 11, ensuring the stability of the device. The non-contact temperature sensor 145 is then secured to the brake disc 71 via the adjustable bracket 143.

[0026] Example 2

[0027] Based on Example 1, such as Figure 3 As shown, the shock absorber seat 11 in this embodiment includes a mounting plate 111 and an I-beam 112. The mounting plate 111 is located on top of the I-beam 112. A first shock absorber pad 113 is provided between the mounting plate 111 and the I-beam 112. The mounting plate 111 and the I-beam 112 are connected by a first bolt 115. A spring 114 is provided between the nut of the first bolt 115 and the mounting plate 111.

[0028] In this embodiment, during elevator operation, vibrations such as those caused by the traction machine 7 or unevenness of the guide rails can lead to low-frequency vibrations in the load-bearing beam 6, which can affect the operation of components such as the temperature measuring component 14 through the shock absorber 11. Therefore, a first shock absorber pad 113 is provided between the I-beam 112 and the mounting plate 111 in the shock absorber 11, and it is fixed with a first bolt 115 with a spring 114 to improve the shock absorption effect.

[0029] Example 3

[0030] Based on Example 1, such as Figures 1-6As shown, this embodiment also includes a gateway box 12 and a vibration acceleration sensor 15. The vibration acceleration sensor 15 is disposed at the top center of the car frame 4, and the gateway box 12 is disposed on the top of the shock absorber seat 11. The vibration acceleration sensor 15 is electrically connected to the gateway box 12. The vibration acceleration sensor 15 includes a mounting housing 151, which is a stainless steel cylinder. A second mounting base 152 is provided at the bottom of the mounting housing 151. The second mounting base 152 is fixedly mounted on the top of the car frame 4. A transmission antenna 153 is provided on the side of the mounting housing 151. The gateway box 12 includes a mounting box 121. A receiving antenna 125 electrically connected to the transmission antenna 153 is provided on the side of the mounting box 121. A through slot 116 is provided on the top of the mounting plate 111 for the receiving antenna 125 to pass through.

[0031] In this embodiment, the vibration acceleration sensor 15 is installed in the center of the elevator car top, using a stainless steel cylindrical shell to effectively protect the internal circuit board and ensure stable operation in humid and dark environments. The choice of stainless steel is not only due to its excellent corrosion resistance but also its good electromagnetic shielding effect, ensuring the sensor's high reliability. A small circular hole is provided on the cylindrical shell for mounting the transmission antenna 153 to ensure signal strength for data transmission. This design significantly improves the wireless signal transmission capability, ensuring the stability and reliability of data transmission. Through these optimizations, the mounting device is not only structurally more robust but also functionally more complete, effectively enhancing the safety of elevator operation and the accuracy of monitoring. The receiving antenna 125 faces the bottom of the elevator shaft 1, opposite the transmission antenna 153, improving transmission performance. Furthermore, the through-slot 116 prevents interference from the mounting plate 111 on signal transmission.

[0032] Example 4

[0033] Based on Example 3, such as Figure 3 As shown, the bottom of the mounting box 121 in this embodiment is provided with a first mounting base 122. The side of the first mounting base 122 is fixedly mounted on the top of the shock absorber 11 by a second bolt 123. A second shock absorber pad 124 is provided between the first mounting base 122 and the shock absorber 11.

[0034] In this embodiment, the added second shock-absorbing pad 124 further enhances the shock absorption effect, ensuring the operational stability of the electronic components in the mounting box 121.

[0035] Example 5

[0036] Based on Example 1, such as Figure 1As shown, this embodiment also includes a display 13, which is electrically connected to the mounting box 121, the non-contact temperature sensor 145 and the thermocouple 146. The display 13 has a display screen on its front side, and a running indicator light, a stop indicator light and an alarm indicator light on its front side.

[0037] In this embodiment, the temperature measuring component 14 and the gateway box 12 respectively send the measured temperature data and vibration acceleration data to the display 13 for display, providing maintenance personnel with comprehensive and intuitive elevator operating status information. The display 13 is equipped with three prominent indicator lights: a running indicator light, a stop indicator light, and an alarm indicator light. These indicator lights emit corresponding signals in different elevator operating states to help maintenance personnel quickly identify the current working status. The running indicator light illuminates when the elevator is running normally, indicating that the system is in a stable working state; the stop indicator light illuminates when the elevator stops running or enters maintenance mode, prompting maintenance personnel that it is safe to perform inspections or repairs; and the alarm indicator light flashes immediately when abnormal temperature or vibration data is detected, issuing a warning signal to remind maintenance personnel to take timely measures to prevent potential faults from occurring.

[0038] Working principle: The temperature monitoring components 14, particularly the non-contact temperature sensor 145 and thermocouple 146, monitor the surface of the brake disc 71 and the brake pads of the brake 72, indirectly monitoring the status of the braking system. If any component of the brake pads or brake disc 71 experiences abnormally high temperatures, it indicates potential friction issues within the braking system, leading to the abnormal temperature. This allows maintenance personnel to promptly perform maintenance on the braking system. A first damping pad 113 is placed between the I-beam 112 and the mounting plate 111 in the shock absorber 11, and secured with a first bolt 115 containing a spring 114, enhancing the damping effect.

Claims

1. A device for detecting and ensuring the safety of elevator operation based on temperature vibration, characterized in that, The system includes an elevator shaft and a machine room located at the top of the elevator shaft. The elevator shaft is equipped with a guide rail support, and a car frame is movably installed in the guide rail support. The car body is located in the middle of the car frame. A load-bearing beam is located at the top of the guide rail support, and a traction machine is fixedly installed at the top of the load-bearing beam. The traction machine includes a dual-shaft extension motor. A reducer is provided at one output end of the dual-shaft extension motor, and a roller is provided at the output end of the reducer. The roller controls the lifting and lowering of the car frame by winding a cable. An inspection port is provided on the floor of the machine room. The other output end of the dual-shaft extension motor is equipped with a brake disc, and a holding brake is provided on the side of the brake disc; The top of the load-bearing beam is provided with a shock-absorbing seat, and the shock-absorbing seat is provided with a temperature measuring component. The temperature measuring component includes a magnetic seat, which is fixed to the surface of the shock-absorbing seat by magnetic attraction. The side of the magnetic seat is provided with a switch knob, and the top of the magnetic seat is provided with an adjustment bracket. One end of the adjustment bracket is movably connected to a mounting bracket, and a non-contact temperature sensor is provided on the mounting bracket.

2. The elevator operation status detection and safety assurance device based on temperature vibration according to claim 1, characterized in that, The brake pads of the brake are provided with a temperature measuring hole on the side, and a thermocouple is provided in the temperature measuring hole. The non-contact temperature sensor faces the surface of the brake disc.

3. The elevator operation status detection and safety assurance device based on temperature vibration according to claim 1, characterized in that, The shock absorber includes a mounting plate and an I-beam. The mounting plate is located on top of the I-beam. A first shock absorber pad is provided between the mounting plate and the I-beam. The mounting plate and the I-beam are connected by a first bolt. A spring is provided between the nut of the first bolt and the mounting plate.

4. The elevator operation status detection and safety assurance device based on temperature vibration according to claim 3, characterized in that, It also includes a gateway box and a vibration acceleration sensor. The vibration acceleration sensor is located at the top center of the car frame, and the gateway box is located on top of the shock absorber. The vibration acceleration sensor is electrically connected to the gateway box.

5. The elevator operation status detection and safety assurance device based on temperature vibration according to claim 4, characterized in that, The vibration acceleration sensor includes a mounting housing, which is a stainless steel cylinder. A second mounting base is provided at the bottom of the mounting housing, and the second mounting base is fixedly installed on the top of the car frame. A transmission antenna is provided on the side of the mounting housing.

6. The elevator operation status detection and safety assurance device based on temperature vibration according to claim 5, characterized in that, The gateway box includes a mounting box, the side of which is provided with a receiving antenna electrically connected to the transmitting antenna, and the top of the mounting plate is provided with a through slot for the receiving antenna to pass through.

7. The elevator operation status detection and safety assurance device based on temperature vibration according to claim 6, characterized in that, The bottom of the mounting box is provided with a first mounting base, and the side of the first mounting base is fixedly mounted on the top of the shock absorber by a second bolt. A second shock absorber pad is provided between the first mounting base and the shock absorber.

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