CN203359895U - Brake performance detecting device of building hoist brake - Google Patents
Brake performance detecting device of building hoist brake Download PDFInfo
- Publication number
- CN203359895U CN203359895U CN 201320342192 CN201320342192U CN203359895U CN 203359895 U CN203359895 U CN 203359895U CN 201320342192 CN201320342192 CN 201320342192 CN 201320342192 U CN201320342192 U CN 201320342192U CN 203359895 U CN203359895 U CN 203359895U
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- brake
- motor
- frequency converter
- rotation detector
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Abstract
The utility model discloses a brake performance detecting device of a building hoist brake. The brake performance detecting device is mainly composed of a frequency converter, a rotation detector, a comparing and controlling circuit, a motor M, a motor brake drive circuit and a brake switch K. The brake switch K is in a normally open state, a light reflecting sheet of the rotation detector is installed on a driving shaft of the motor M, and the output end of the rotation detector is connected with the input end of the comparing and controlling circuit. The output of the comparing and controlling circuit is divided into two paths, one path is connected with the frequency converter, and the other path is connected with the brake switch K. The output end of the frequency converter is connected with the motor M, the brake switch K is connected with the motor brake drive circuit in series, and the motor brake drive circuit is installed on a brake piece and is used for controlling the motion of the brake piece. The brake performance of the motor of a building hoist can be automatically and regularly detected. When detecting that the brake performance reduces, the brake performance detecting device gives an alarm signal immediately and locks a building lifting system, and the safety of the system is ensured.
Description
Technical field
The utility model relates to a kind of detecting device, especially a kind of building hoist braking performance detector of brake.
Background technology
In the operational process of building construction hoist, when elevator stops moving, need the motor of a braking force to elevator, it is promptly stopped operating, with the accuracy of guaranteeing the elevator operation and equipment personnel's safety.The deceleration and stopping performance of motor stop mechanism needs artificial regularly detection at present, and artificial regular testing amount is large, the cycle long, poor reliability, this brings larger hidden danger to the safe in operation of machine, therefore needs a kind of detecting device of motor deceleration and stopping performance of self-timing.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of building hoist braking performance detector of brake, with realization, automatically periodically the motor deceleration and stopping performance of building hoist is detected, when deceleration and stopping performance being detected, descend, send immediately alerting signal, and locking construction jacking system, guaranteed the safety of system.
The utility model solves the problems of the technologies described above with following technical scheme:
A kind of building hoist braking performance detector of brake of the utility model, it is mainly by frequency converter, show and warning circuit, rotation detector, comparison and control circuit, motor M, motor brake driving circuit and brake switch K form, brake switch K is normally open, the Reflector of rotation detector is arranged on the axle drive shaft of motor M, the mouth of rotation detector connects the input end compared with control circuit, relatively with the output of control circuit, divide two tunnels, one tunnel connects frequency converter, another road connects brake switch K, the output of frequency converter is connecting motor M and demonstration and warning circuit respectively, brake switch K and motor brake driving circuit are connected in series, and the motor brake driving circuit is arranged on brake shoe for controlling the brake plate action.
When powering on each time of application system, this device will detect once, thereby realization is automatically periodically detected the motor deceleration and stopping performance of building hoist, when deceleration and stopping performance being detected, descend, send immediately alerting signal, and the locking jacking system, guaranteed the safety of system.The utility model has met actual demand.
The accompanying drawing explanation
Fig. 1 is the utility model schematic circuit diagram.
In figure: 1---frequency converter, 2---micro controller system comparison and control circuit, 3---rotation detector, 4---the motor brake driving circuit, 5---show and warning circuit M---motor, K---braking master cock.
The specific embodiment
As shown in drawings, a kind of building hoist braking performance detector of brake of the utility model is by frequency converter 1, show and warning circuit 5, rotation detector 3, relatively with control circuit 2, motor M, motor brake driving circuit 4 and brake switch K form, brake switch K is normally open, rotation detector 4 is prior art products, its Reflector is arranged on the axle drive shaft of motor M, the mouth of rotation detector 4 connects the input end compared with control circuit 2, relatively with the output of control circuit 2, divide two tunnels, one road is connected to frequency converter 1, another road connects brake switch K, the three phasevoltage output UVW end connecting motor M of frequency converter, another mouth of frequency converter 1 connects and shows and warning circuit 5, brake switch K and motor brake driving circuit 4 are connected in series, motor brake driving circuit 4 is mounted on brake shoe for controlling the action of brake plate.
Brake switch K is normally open, motor brake driving circuit 4 dead electricity when brake switch K opens, and motor M is in braking mode; When brake switch K is closed, motor brake driving circuit 4 must be electric, and control the action of brake plate, makes motor M without drag; When frequency converter has output three-phase voltage U VW, motor can rotate, and sends alerting signal and demonstration information through showing with warning circuit 5 simultaneously.
Give motor M mono-rotating torque by frequency converter 1 under braking mode, rotation detector detects the rotary state of motor, when motor being detected, rotates, and frequency converter sends alerting signal and demonstration information through showing with warning circuit 5, and the locking jacking system.
Working process is: system this device when electrifying startup enters the testing state, relatively with control circuit 2, controlling brake switch K opens, motor brake driving circuit 4 dead electricity, motor M is in braking mode, it is electric that while frequency converter 1 output three-phase voltage U VW obtains motor, as lock torque now is greater than revolution moment, motor can't rotate, rotation detector 3 send comparison and control circuit 2 by the motor rotation signal detected, no-output now, the deceleration and stopping performance that motor braking mechanism is described is satisfactory, frequency converter stops exporting turn signal, start to enter normal working.Send comparison and control circuit and work as rotation detector by the motor rotation signal detected, output is now arranged, illustrate that lock torque is less than rotating torque, the stop mechanism deceleration and stopping performance is undesirable, and by this signal by relatively with control circuit, delivering to frequency converter, the frequency converter warning of sounding reflects this alarm message on display panel, locking output simultaneously, wait pending fault to get rid of.
Claims (1)
1. a building hoist braking performance detector of brake, it is characterized in that, it is mainly by frequency converter, show and warning circuit, rotation detector, comparison and control circuit, motor M, motor brake driving circuit and brake switch K form, brake switch K is normally open, the Reflector of rotation detector is arranged on the axle drive shaft of motor M, the mouth of rotation detector connects the input end compared with control circuit, relatively with the output of control circuit, divide two tunnels, one tunnel connects frequency converter, another road connects brake switch K, the output of frequency converter is connecting motor M and demonstration and warning circuit respectively, brake switch K and motor brake driving circuit are connected in series, and the motor brake driving circuit is arranged on brake shoe for controlling the brake plate action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320342192 CN203359895U (en) | 2013-06-14 | 2013-06-14 | Brake performance detecting device of building hoist brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320342192 CN203359895U (en) | 2013-06-14 | 2013-06-14 | Brake performance detecting device of building hoist brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203359895U true CN203359895U (en) | 2013-12-25 |
Family
ID=49807688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320342192 Expired - Fee Related CN203359895U (en) | 2013-06-14 | 2013-06-14 | Brake performance detecting device of building hoist brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203359895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084146A (en) * | 2015-09-01 | 2015-11-25 | 深圳市英威腾电气股份有限公司 | Brake detection method and system of construction lifter frequency converter |
-
2013
- 2013-06-14 CN CN 201320342192 patent/CN203359895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084146A (en) * | 2015-09-01 | 2015-11-25 | 深圳市英威腾电气股份有限公司 | Brake detection method and system of construction lifter frequency converter |
| CN105084146B (en) * | 2015-09-01 | 2017-05-24 | 深圳市英威腾电气股份有限公司 | Brake detection method and system of construction lifter frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160614 |