Brake detection device

Abstract

The utility model relates to a kind of brake detection devices, comprising: cabinet, test circuit is arranged in the cabinet, after external alternating current supply is connected through the circuit breaker, through the normally open contact of relay one KM1 and the input end connection of the voltage regulator, it is also connected with the input end of the direct current power module, the output end of the voltage regulator is connected with the input end of the rectifier bridge stack TD, the output end of the rectifier bridge stack TD is connected with the output line after the normally open contact of relay two KM2;The switch feedback lamp is connected with the output end of the external microswitch SQ and the direct current power module in series connection;Control circuit controls relay and is connected with the output end of the direct current power module.The utility model can be used for periodically detecting the key performance parameters of elevator traction machine brake, such as current, voltage, action frequency etc., to ensure that it meets safety standards.Its application scenarios cover elevator manufacturing, installation and commissioning, routine maintenance and troubleshooting etc.

Description

Technical Field

[0001] This utility model relates to the field of elevator safety technology, and in particular to a brake detection device. Background Technology

[0002] Elevators are becoming increasingly integral to our lives, ubiquitous in residential buildings, hotels, shopping malls, and other modern facilities, serving as an indispensable part of modern development. Elevators are not merely transportation tools; their reliability and safety performance are paramount. The elevator traction mechanism brake is a core component ensuring safe elevator operation, and its reliability directly impacts passenger safety. Statistics show that over 60% of major elevator accidents, such as overshooting or bottoming out, are related to brake failure. With the increasing prevalence of high-rise buildings and the rising frequency of elevator operation, higher demands are placed on the intelligence, real-time performance, and accuracy of brake detection equipment. Utility Model Content

[0003] The present invention aims to address the shortcomings of the prior art by providing a brake detection device.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A brake testing device, comprising: a housing, wherein a test circuit is provided inside the housing, the test circuit comprising: a circuit breaker, a voltage regulator, a rectifier bridge TD, a time relay KT, a DC power supply module, relay one KM1, relay two KM2, output line one, output line two, a switch feedback lamp, a switch one SA1, a switch two SA2, and a switch three SA3; an external AC power supply, after passing through the circuit breaker, is connected to the input terminal of the voltage regulator through the normally open contact of relay one KM1, and is also connected to the input terminal of the DC power supply module; the output terminal of the voltage regulator is connected to the input terminal of the rectifier bridge TD; the positive terminal of the output terminal of the rectifier bridge TD is connected to the output line one SA3 through the normally open contact of relay two KM2. The negative terminal of the rectifier bridge TD is connected to the output line 112; the switch feedback lamp is connected in series with the external micro switch SQ and connected to the output terminal of the DC power module; the switching switch SA1 is connected in series with the control coil of the relay KM1 and connected to the output terminal of the DC power module; the normally closed terminal of the switching switch SA2 is connected in series with the control coils of the switching switch SA3 and the relay KM2 and connected to the output terminal of the DC power module; the normally open terminal of the switching switch SA2 is connected in series with the normally open terminal of the time relay KT and the control coil of the relay KM2 and connected to the output terminal of the DC power module; the normally open terminal of the switching switch SA2 is also connected in series with the time relay KT and connected to the output terminal of the DC power module.

[0005] Furthermore, it also includes: a counting display panel, wherein the control signal terminal of the counting display panel is connected to both ends of the normally open contact of the relay KM2, and the power supply terminal is connected to the output terminal of the DC power module.

[0006] Furthermore, it also includes: a current display meter and a voltage display meter; the measurement signal terminal of the current display meter is connected to the negative terminal of the output terminal of the rectifier bridge TD and the second output line, respectively; the measurement signal terminal of the voltage display meter is connected to the first output line and the second output line, respectively; the power supply terminals of the current display meter and the voltage display meter are both connected to the output terminal of the DC power module.

[0007] Furthermore, it also includes: an AC power indicator and a DC power indicator; the AC power indicator is connected to an external AC power source after passing through the normally open contact of the relay KM1 and the circuit breaker; the DC power indicator is connected to the output terminal of the rectifier bridge TD after passing through the normally open contact of the relay KM2.

[0008] Furthermore, it also includes: fuses, the external AC power supply is connected to the DC power module and the normally open contact of the relay KM1 through fuses FU1 and FU2 respectively, and the normally open contact of the relay KM2 is connected to the output line through fuse FU3.

[0009] The beneficial effects of this invention are: it can be used to periodically test key performance parameters of elevator traction mechanism brakes, such as current, voltage, and number of actuations, to ensure they meet safety standards. Its applications cover elevator manufacturing, installation and commissioning, daily maintenance, and troubleshooting. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 The circuit schematic for the test circuit;

[0012] In the diagram: 1-Box; 2-Circuit breaker; 3-Voltage regulator; 4-Time relay KT; 5-DC power supply module; 6-Switch feedback indicator; 7-Changeover switch one SA1; 8-Changeover switch two SA2; 9-Changeover switch three SA3; 10-Counting display panel; 11-Current display meter; 12-Voltage display meter; 13-AC power indicator; 14-DC power indicator; 112-Output line two; 113-Output line one;

[0013] The accompanying drawings in this utility model are all schematic diagrams and their sizes do not represent actual dimensions.

[0014] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] like Figures 1-2 As shown, a brake testing device includes: a housing 1; a test circuit is installed inside the housing 1, the test circuit including: a circuit breaker 2, a voltage regulator 3, a rectifier bridge TD, a time relay KT4, a DC power supply module 5, a first relay KM1, a second relay KM2, an output line 113, an output line 112, a switch feedback lamp 6, a first switch SA17, a second switch SA28, and a third switch SA39; an external AC power supply, after passing through the circuit breaker 2, is connected to the input terminal of the voltage regulator 3 through the normally open contact of the first relay KM1, and is also connected to the input terminal of the DC power supply module 5; the output terminal of the voltage regulator 3 is connected to the input terminal of the rectifier bridge TD; the positive terminal of the output terminal of the rectifier bridge TD is connected to the output line 113 through the normally open contact of the second relay KM2; the rectifier bridge TD... The negative terminal of the output of the current bridge rectifier TD is connected to the output line 112; the switch feedback lamp 6 is connected in series with the external micro switch SQ and is connected to the output of the DC power module 5; the switching switch SA17 is connected in series with the control coil of the relay KM1 and is connected to the output of the DC power module 5; the normally closed terminal of the switching switch SA28 is connected in series with the control coils of the switching switch SA39 and the relay KM2 and is connected to the output of the DC power module 5; the normally open terminal of the switching switch SA28 is connected in series with the normally open terminal of the time relay KT4 and the control coil of the relay KM2 and is connected to the output of the DC power module 5; the normally open terminal of the switching switch SA28 is also connected in series with the time relay KT4 and is connected to the output of the DC power module 5.

[0017] Specifically, connect output line 113 to 104A+ of the traction machine brake, connect output line 112 to 104A- of the traction machine brake, connect the wire of tube P24 to P24 of the traction machine brake, and connect the wire of tube 31 to BK1 of the traction machine brake, thus connecting the external micro switch SQ on the traction machine brake to the circuit; connect the external AC power supply, the circuit breaker 2 is model DPN-16A+ELE, close the circuit breaker 2, at this time the traction machine brake is in the holding state, the external micro switch SQ is in the closed state, and the switch feedback light 6 is lit; the relays KM1 and KM2 are model NC8-12M / 4DC24V, at this time switch SA17 is turned to the connected state, the control coil of relay KM1 is energized, and the relay... When the normally open stationary contact of electrical switch KM1 closes, the circuit is connected. Switch SA28 is normally closed by default, in manual mode. Switching switch SA39 to the connected state energizes the control coil of relay KM2, closing its normally open stationary contact and connecting the circuit. When the voltage regulator 3 is adjusted to approximately 110V, the traction machine brake's holding state is released, the external microswitch SQ is open, and the switch feedback light 6 is off. Switching switch SA28 to the normally open position enters automatic mode, energizing time relay KT4. The normally open terminal of time relay KT4 automatically connects and disconnects according to the preset time, effectively automatically outputting or shutting off the power to relay KM2. Observing the switch feedback light 6 shows whether the traction machine brake has correctly entered the holding state.

[0018] It also includes a counting display panel 10, the control signal terminal of which is connected to both ends of the normally open contact of the relay KM2, and the power supply terminal is connected to the output terminal of the DC power module 5.

[0019] Specifically, the counting display panel 10 is model NJJ5-JHE DC24V. When the time relay KT4 is powered on, it automatically outputs or shuts off the power supply of relay KM2 according to the preset time. The counting display panel 10 records the number of times the normally open contact of relay KM2 is closed.

[0020] It also includes: a current display meter 11 and a voltage display meter 12; the measurement signal terminal of the current display meter 12 is connected to the negative terminal of the output terminal of the rectifier bridge TD and the second output line 112, respectively; the measurement signal terminal of the voltage display meter 12 is connected to the first output line 113 and the second output line 112, respectively; the power supply terminals of the current display meter 11 and the voltage display meter 12 are both connected to the output terminal of the DC power module 6.

[0021] Specifically, after connecting the external AC power supply and closing the circuit breaker 2, the current display meter 11 and the voltage display meter 12 will light up but the value will be zero. Switch 1 SA17 is turned to the connected state, switch 2 SA28 is in the manual state, and switch 3 SA39 is turned to the connected state. Adjust the voltage regulator 3, and the current display meter 11 and the voltage display meter 12 will display the value for easy observation and recording.

[0022] It also includes: an AC power indicator light 13 and a DC power indicator light 14; the AC power indicator light 13 is connected to an external AC power source after passing through the normally open contact of the relay KM1 and the circuit breaker 2; the DC power indicator light 11 is connected to the output terminal of the rectifier bridge TD after passing through the normally open contact of the relay KM2.

[0023] Specifically, when switch 1 SA17 is turned to the ON state, the AC power indicator light 13 (red) will light up; when switch 2 SA28 is in the manual state; and when switch 3 SA39 is turned to the ON state, the DC power indicator light 14 (red) will light up, which is used to check whether the test circuit is operating normally.

[0024] It also includes: fuses, wherein the external AC power supply is connected to the DC power module 5 and the normally open contact of the relay KM1 via fuses FU1 and FU2 respectively, and the normally open contact of the relay KM2 is connected to the output line 113 via fuse FU3. The fuses further protect the circuit.

[0025] The operating principle of this utility model is as follows: Connect output line 113 to 104A+ of the traction machine brake, connect output line 112 to 104A- of the traction machine brake, and connect the external micro switch SQ on the traction machine brake to the circuit; connect the external AC power supply, close the circuit breaker 2. At this time, the traction machine brake is in the holding state, the external micro switch SQ is in the closed state, the current display meter 11 and the voltage display meter 12 will light up but the value will be zero, and the switch feedback light 6 will light up; at this time, switch one SA17 is switched to the connected state, the AC power indicator light 13 will light up red, and switch two SA28 will remain in the default state. In manual mode, switch switch 3 SA39 to the ON position. The DC power indicator 14 will light up red. Adjust the voltage regulator 3 until the traction machine brake is released from its holding state. The switch feedback light 6 will turn off. Record the values ​​of the current display 11 and the voltage display 12. Switch switch 2 SA28 to automatic mode. The time relay KT4 will be energized, automatically outputting or shutting off the power to relay 2 KM2. Observe the switch feedback light 6 to see if the traction machine brake has correctly entered the holding state. The counter display panel 10 records the number of times the normally open contact of relay 2 KM2 has closed, confirming the reliable number of times the holding action has been performed.

[0026] When the voltage regulator is adjusted to around 110V, the traction machine brake is released, the external micro switch SQ is in the open state, and the switch feedback light 6 is off. Switch the second switch SA28 to the normally open position to enter the automatic state. The time relay KT4 is energized, and the normally open position of the time relay KT4 automatically turns on and off according to the preset time of the time relay KT4, which is equivalent to automatically outputting or turning off the power supply of the second relay KM2. Observe the switch feedback light 6 to see whether the traction machine brake has correctly entered the brake state.

[0027] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A brake detection device, characterized in that, include: The enclosure (1) contains a test circuit, which includes: a circuit breaker (2), a voltage regulator (3), a rectifier bridge TD, a time relay KT (4), a DC power supply module (5), a relay KM1, a relay KM2, an output line 1 (113), an output line 2 (112), a switch feedback lamp (6), a switching switch SA1 (7), a switching switch SA2 (8), and a switching switch SA3 (9). An external AC power supply is connected to the circuit breaker (2) and then to the input terminal of the voltage regulator (3) via the normally open contact of the relay KM1. It is also connected to the input terminal of the DC power supply module (5). The output terminal of the voltage regulator (3) is connected to the input terminal of the rectifier bridge TD. The positive terminal of the output terminal of the rectifier bridge TD is connected to the output line 1 (113) via the normally open contact of the relay KM2. The rectifier bridge TD... The negative terminal of the output of D is connected to the output line two (112); the switch feedback lamp (6) is connected in series with the external micro switch SQ and connected to the output terminal of the DC power module (5); the switching switch one SA1 (7) is connected in series with the control coil of the relay one KM1 and connected to the output terminal of the DC power module (5); the normally closed terminal of the switching switch two SA2 (8) is connected in series with the control coil of the switching switch three SA3 (9) and the relay two KM2 and connected to the output terminal of the DC power module (5); the normally open terminal of the switching switch two SA2 (8) is connected in series with the normally open terminal of the time relay KT (4) and the control coil of the relay two KM2 and connected to the output terminal of the DC power module (5); the normally open terminal of the switching switch two SA2 (8) is also connected in series with the time relay KT (4) and connected to the output terminal of the DC power module (5).

2. The brake detection device according to claim 1, characterized in that, It also includes a counting display panel (10), the control signal terminal of the counting display panel (10) is connected to both ends of the normally open contact of the relay KM2, and the power supply terminal is connected to the output terminal of the DC power module (5).

3. The brake detection device according to claim 2, characterized in that, Also includes: The current display meter (11) and voltage display meter (12) are provided. The measurement signal terminal of the current display meter (12) is connected to the negative terminal of the output terminal of the rectifier bridge TD and the second output line (112), respectively. The measurement signal terminal of the voltage display meter (12) is connected to the first output line (113) and the second output line (112), respectively. The power supply terminals of the current display meter (11) and the voltage display meter (12) are both connected to the output terminal of the DC power module (6).

4. The brake detection device according to claim 1, characterized in that, Also includes: AC power indicator (13) and DC power indicator (14); the AC power indicator (13) is connected to an external AC power source after passing through the normally open contact of the relay KM1 and the circuit breaker (2); the DC power indicator (11) is connected to the output terminal of the rectifier bridge TD through the normally open contact of the relay KM2.

5. The brake detection device according to claim 1, characterized in that, Also includes: The external AC power supply is connected to the DC power module (5) and the normally open contact of the relay KM1 through fuses FU1 and FU2 respectively. The normally open contact of the relay KM2 is connected to the output line (113) through fuse FU3.

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