CN215444149U - Disc brake oil leakage alarm device of non-contact elevator hydraulic braking system - Google Patents
Disc brake oil leakage alarm device of non-contact elevator hydraulic braking system Download PDFInfo
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- CN215444149U CN215444149U CN202120837646.0U CN202120837646U CN215444149U CN 215444149 U CN215444149 U CN 215444149U CN 202120837646 U CN202120837646 U CN 202120837646U CN 215444149 U CN215444149 U CN 215444149U
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- braking system
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Abstract
The utility model relates to a disc brake oil leakage alarm device of a non-contact type elevator hydraulic braking system, which comprises an alternating current power supply, wherein the alternating current power supply is connected with the input end of a transformer through a manual knob switch; the output end of the transformer is connected with the input end of the rectifying module, and the anode of the output end of the rectifying module is connected with the anode of the light-emitting diode; the positive electrode of the output end of the rectification module is connected with the base electrode of the triode through the intermediate relay coil; the emitter of the triode is connected with the negative electrode of the output end of the rectification module; an oil receiving cup is arranged below the disc brake; the non-contact liquid sensor is arranged on the outer wall of the oil receiving cup. The disc brake oil leakage alarm device of the non-contact type elevator hydraulic braking system has the advantages of simple structure, sensitivity, reliability, convenience in maintenance and low cost, realizes 24-hour monitoring of the hydraulic oil leakage condition caused by the sealing damage of the disc brake of the hydraulic braking system, effectively avoids various safety accidents caused by the braking failure of the braking system due to the oil leakage of the disc brake, and improves the safety of the mine hoisting system.
Description
Technical Field
The utility model relates to a mine safety alarm device, in particular to a disc brake oil leakage alarm device of a non-contact type elevator hydraulic braking system.
Background
At present, a hydraulic braking system is adopted in a plurality of domestic mines in vertical shaft lifting, a disc brake is a core component which directly provides braking torque for a hoist in the hydraulic braking system, hydraulic oil can be repeatedly charged and discharged into the disc brake by a hydraulic braking device in daily production so as to obtain the braking torque with different requirements, and the internal mechanism of the disc brake usually has higher action frequency in a working period. If the internal structure or the sealing element of the disc brake is damaged to cause oil leakage of a disc brake, and workers cannot timely find and take effective measures to stop the disc brake, serious lifting accidents can be caused.
In domestic coal mines, no professional disc brake oil leakage detection device of a brake device is provided, safety accidents caused by oil leakage of the disc brake are avoided by generally adopting a method of patrolling by personnel, the method of finding problems by patrolling by the personnel alone cannot realize full coverage of the patrolling within 24 hours, and the service skills and the work responsibility centers of the patrolling personnel who find the problems cannot be guaranteed, so that a large safety management hole exists.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the disc brake oil leakage alarm device of the non-contact type elevator hydraulic braking system, which has the advantages of simple structure, sensitive and reliable action, convenient maintenance and low cost and realizes the 24-hour monitoring of the sealing condition of the disc brake of the hydraulic braking system.
The technical scheme adopted by the utility model is as follows:
a non-contact type oil leakage alarm device for a disc brake of a hydraulic brake system of a hoist,
the device comprises an alternating current power supply, wherein the alternating current power supply is connected with the input end of a transformer through a manual knob switch;
the output end of the transformer 2 is connected with the input end of the rectifier module 3;
the positive electrode of the output end of the rectification module is connected with the negative electrode of the output end of the rectification module through a resistance-capacitance filtering device;
the positive electrode of the output end of the rectifying module is connected with the positive electrode of the light-emitting diode;
the positive electrode of the output end of the rectification module is connected with one end of the coil of the intermediate relay KM;
the cathode of the light-emitting diode is connected with the other end of the coil of the intermediate relay KM;
the cathode of the light emitting diode is connected with the base electrode of the triode;
the emitter of the triode is connected with the negative electrode of the output end of the rectification module;
the triode collector is connected with the IC end (control end) of the non-contact liquid sensor;
the positive electrode of the output end of the rectification module is connected with the positive electrode of the non-contact liquid sensor;
the negative electrode of the output end of the rectification module is connected with the negative electrode of the non-contact liquid sensor;
the sound and light alarm device is connected with an alternating current power supply through a manual knob switch;
the normally open contact of the intermediate relay is connected with an alternating current power supply through a manual knob switch;
an oil receiving cup is arranged below the disc brake.
The non-contact liquid sensor is arranged on the outer wall of the oil receiving cup.
The distance between the oil receiving cup and the disc brake is based on the condition that the disc brake action is not influenced.
The oil receiving cup is fixed with the disc brake through a connecting device.
Compared with the prior art, the utility model has the beneficial effects that:
the disc brake oil leakage alarm device of the non-contact type elevator hydraulic brake system has the advantages of simple structure, sensitive and reliable action, convenient maintenance and low cost, realizes 24-hour monitoring of the sealing condition of the disc brake of the hydraulic brake system, effectively avoids various safety accidents caused by brake failure due to oil leakage of the disc brake of the brake system on the basis of reducing the patrol pressure of field workers, and greatly improves the safety of the mine hoisting system.
Drawings
Fig. 1 is a schematic structural diagram of a disc brake oil leakage alarm device of a non-contact type elevator hydraulic braking system.
In the drawings, the main parts are illustrated by symbols:
in the figure:
1. manual knob switch 2 and transformer
3. Rectifier module 4 and acousto-optic alarm device
5. Resistance-capacitance filtering device 6 and intermediate relay KM normally open contact
7. Light-emitting diode 8 and intermediate relay KM
9. NPN type triode 10 and non-contact liquid sensor
11. An oil receiving cup 12 and a disc brake.
Detailed Description
The utility model is described in detail below with reference to the figures and examples:
as shown in the attached figure 1, the disc brake oil leakage alarm device of the non-contact type elevator hydraulic braking system,
the device comprises an alternating current power supply, wherein the alternating current power supply is connected with the input end of a transformer 2 through a manual knob switch 1;
the output end of the transformer 2 is connected with the input end of the rectifier module 3;
the positive electrode of the output end of the rectification module 3 is connected with the negative electrode of the output end of the rectification module 3 through the resistance-capacitance filtering device 5;
the positive electrode of the output end of the rectification module is connected with the positive electrode of the light-emitting diode 7;
the positive electrode of the output end of the rectification module is connected with one end of an intermediate relay KM coil 8;
the cathode of the light-emitting diode is connected with the other end of the intermediate relay KM coil 8;
the cathode of the light emitting diode 7 is connected with the base electrode of the triode 9;
the emitter of the triode is connected with the negative electrode of the output end of the rectification module 3;
the triode collector is connected with the IC terminal (control terminal) of the non-contact liquid sensor 10;
the positive electrode of the output end of the rectification module is connected with the positive electrode of the non-contact liquid sensor;
the negative electrode of the output end of the rectification module is connected with the negative electrode of the non-contact liquid sensor;
the sound and light alarm device 4 is connected with an alternating current power supply through a manual knob switch;
the normally open contact 6 of the intermediate relay is connected with an alternating current power supply through a manual knob switch;
an oil receiving cup 11 is arranged below the disc brake 12.
The non-contact liquid sensor is arranged on the outer wall of the oil receiving cup 11.
The distance between the oil receiving cup 11 and the disc brake 12 is not to influence the disc brake action.
The oil receiving cup 11 is hung below the disc brake 12 through a fixing device.
The non-contact liquid sensor is fixed on the outer wall of the oil receiving cup 11 by an adhesive tape, and the height of the non-contact liquid sensor in the oil receiving cup 11 is adjusted by moving the sensor.
The disc brake oil leakage alarm device of the non-contact type elevator hydraulic brake system has the advantages of simple structure, sensitive and reliable action, convenient maintenance and low cost, realizes 24-hour monitoring of the sealing condition of the disc brake of the hydraulic brake system, effectively avoids various safety accidents caused by brake failure due to oil leakage of the disc brake of the brake system on the basis of reducing the patrol pressure of field workers, and greatly improves the safety of the mine hoisting system.
The disc brake oil leakage alarm device of the non-contact type elevator hydraulic braking system is powered by 220V alternating current, and when a manual knob switch 1 is closed; 220V alternating current is firstly changed into 24V alternating current through a transformer 2, 24V alternating current is changed into 24V direct current through a rectifying module 3 and a filtering module 5, the 24V direct current is supplied to an intermediate relay 8 and a non-contact type liquid sensor 10, when the non-contact type liquid sensor is electrified, distributed capacitance exists in the sensor, a certain static capacitance exists relatively, and when oil leaks from a disc brake 12 of an elevator, hydraulic oil drops in an oil cup 11 under the action of gravity.
The oil level gradually rises as the hydraulic oil is accumulated and the oil level approaches the sensor, the parasitic capacitance of the hydraulic oil is coupled to the static capacitance of the inductor, so that the final capacitance value of the inductor is increased, the changed capacitance signal is input into the IC end of the non-contact liquid sensor control 10 to be converted into a voltage signal, the voltage signal directly acts on the collector electrode of the NPN type triode 9, when the voltage of the collector electrode is more than the voltage of the base electrode and more than the voltage of the emitter electrode, the NPN type triode is conducted, then the coil loop of the intermediate relay 8 is conducted, the light emitting diode 8 is lighted, the intermediate relay acts, the acousto-optic alarm device 4 with the normally open contact 6 of the intermediate relay acts to send out acousto-optic alarm to finish the alarm action, and a worker arrives at the site and can lock the brake disc with oil leakage rapidly by observing the lighting condition of the diode 8 corresponding to each group of disc brakes, so that the maintenance worker can process the oil leakage in time.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (3)
1. The utility model provides a non-contact lifting machine hydraulic braking system disk brake oil leak alarm device which characterized in that:
the device comprises an alternating current power supply, wherein the alternating current power supply is connected with the input end of a transformer (2) through a manual knob switch (1);
the output end of the transformer (2) is connected with the input end of the rectifier module (3);
the positive electrode of the output end of the rectification module (3) is connected with the negative electrode of the output end of the rectification module (3) through a resistance-capacitance filtering device (5);
the positive electrode of the output end of the rectification module is connected with the positive electrode of the light-emitting diode (7);
the positive electrode of the output end of the rectification module is connected with one end of an intermediate relay KM coil (8);
the cathode of the light-emitting diode is connected with the other end of the intermediate relay KM coil (8);
the cathode of the light-emitting diode (7) is connected with the base of the triode (9);
the emitter of the triode is connected with the negative electrode of the output end of the rectifying module (3);
the triode collector is connected with the IC end (control end) of the non-contact liquid sensor (10);
the positive electrode of the output end of the rectification module is connected with the positive electrode of the non-contact liquid sensor;
the negative electrode of the output end of the rectification module is connected with the negative electrode of the non-contact liquid sensor;
the sound and light alarm device (4) is connected with an alternating current power supply through a manual knob switch;
the normally open contact (6) of the intermediate relay is connected with an alternating current power supply through a manual knob switch;
an oil receiving cup (11) is arranged below the disc-shaped brake (12).
2. The disc brake oil leakage alarm device of the non-contact elevator hydraulic braking system according to claim 1, characterized in that: the oil receiving cup (11) is fixed below the disc brake (12) through a connecting device.
3. The disc brake oil leakage alarm device of the non-contact elevator hydraulic braking system according to claim 1, characterized in that: the non-contact liquid sensor is arranged on the outer wall of the oil receiving cup (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120837646.0U CN215444149U (en) | 2021-04-22 | 2021-04-22 | Disc brake oil leakage alarm device of non-contact elevator hydraulic braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120837646.0U CN215444149U (en) | 2021-04-22 | 2021-04-22 | Disc brake oil leakage alarm device of non-contact elevator hydraulic braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215444149U true CN215444149U (en) | 2022-01-07 |
Family
ID=79705288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120837646.0U Active CN215444149U (en) | 2021-04-22 | 2021-04-22 | Disc brake oil leakage alarm device of non-contact elevator hydraulic braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215444149U (en) |
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2021
- 2021-04-22 CN CN202120837646.0U patent/CN215444149U/en active Active
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