CN102145866A - Device for monitoring working clearance of disc brake - Google Patents
Device for monitoring working clearance of disc brake Download PDFInfo
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- CN102145866A CN102145866A CN2011100555815A CN201110055581A CN102145866A CN 102145866 A CN102145866 A CN 102145866A CN 2011100555815 A CN2011100555815 A CN 2011100555815A CN 201110055581 A CN201110055581 A CN 201110055581A CN 102145866 A CN102145866 A CN 102145866A
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Abstract
The invention discloses a device for monitoring the working clearance of a disc brake. The device comprises a plurality of displacement sensors, an intelligent data acquisition unit, a communication interface and a host computer, wherein the displacement sensors are used for sensing a brake clearance signal between a disc brake shoe and a brake disc and outputting continuous signals; and the intelligent data acquisition unit is connected with the displacement sensors and is used for acquiring the brake clearance signal, transmitting the brake clearance signal to the host computer through the communication interface and processing data in the host computer. By adopting the device for monitoring the working clearance of the disc brake, the brake clearance serving as an important parameter can be monitored mainly, disc brake clearances of a main ground well winch, an auxiliary ground well winch and an underground inclined drift winch can be detected in real time, quantitative reliable data are given, and sound and light alarm signals can be transmitted immediately in case of ultra-limit or failure to remind a winch driver of being careful.
Description
Technical field
The present invention relates to the mining machinery field, especially a kind of dish brake working clearance monitoring device.
Background technology
The winch in colliery mainly divides ground major and minor well winch, inclined gallery, down-hole winch, and the main shaft winch is mainly used to promote coal, and the auxiliary shaft winch is mainly used to promote personnel in the pit, material, and the main effect of down-hole winch has the fortune people, and haul is also arranged.Brake system of winch mainly comprises dish brake, Hydraulic Station and associated ping thereof and valve member, and it is the important component part of coalmine winch elevator system, is the key link that guarantees security improvement.Wherein moving time of the sky of the working clearance of dish brake and brake disc, brake shoe, pipeline oil pressure are three principal parameters of reflection brake system working condition, and method of inspection and the numerical value change of analyzing three parameters play an important role to the safe reliability of passing judgment on brake system." safety regulations in coal mine " regulation: the winch bont must be installed the brake clearance fender guard, energy auto alarm or outage automatically when the brake clearance surpasses specified value; The brake shoe and the gap between the brake disc of disc type brake should be not more than 2mm.
The drg of mine hoist is the important component part that guarantees the mine hoist safety operation.Because plate disc brake has advantages such as quality is little, action is fast, highly sensitive, the lock torque adjustability is good, has obtained widespread use in recent years in gig.But owing to design, the more existing problems in working service aspect, the grave accident that causes because of brake troubles both at home and abroad has many in recent years.
Most mines have all been installed the brake clearance protection switch (using the limit switch of machinery again, also useful simply near switch) that transfinites, and effect is when the brake clearance surpasses setting value 2mm, device meeting alarm.This fender guard obviously can't provide the dish brake gap width of winch when moving to hoistman; and the protection of this class device is too simple; mostly together with each protection switch series connection (normally closed) of a plurality of lock heads on the winch or (often opening) in parallel; in case fender guard works, hoistman is again by checking the on-the-spot excessive clearance that could judge which lock one by one.
Hoistman is when periodic inspection winch equipment, because colliery scene is mostly installed the protection switch that transfinites of two formulas at present, when adjusting the dish brake gap; generally adopt plug paper method; rough definite brake clearance distance only depends on people's eyes to observe adjustment sometimes, lacks reliable believable True Data.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of dish brake working clearance monitoring device at the deficiencies in the prior art.Adopt following technical scheme:
A kind of dish brake working clearance monitoring device comprises some displacement pickups, intelligent data acquisition unit, communication interface, main frame; Described displacement pickup is used to respond to the brake clearance signal of dish type brake shoe and brake disc, described displacement pickup output continuous signal, described intelligent collector connects described displacement pickup, be used to gather described brake clearance signal, and described brake clearance signal passed to described main frame by described communication interface, carry out data handing at described main frame.
Described dish brake working clearance monitoring device, described intelligent data acquisition unit comprises sensor detection circuit.
Described dish brake working clearance monitoring device, described sensor detection circuit is AD converter TLC1543.
Described dish brake working clearance monitoring device, described sensor detection circuit is multi-channel data selector CD4051.
Described dish brake working clearance monitoring device, described intelligent data acquisition unit comprises automatic reset circuit.
Described dish brake working clearance monitoring device, described intelligent data acquisition unit comprises display circuit.
Described dish brake working clearance monitoring device, described intelligent data acquisition unit comprises communication circuit, and described communication circuit links to each other with described communication interface, and host computer is finished communication link.
Described dish brake working clearance monitoring device, described intelligent data acquisition unit comprise storage and zeroing circuit.
Described dish brake working clearance monitoring device, described intelligent data acquisition unit comprises sound light alarming circuit.
Dish brake working clearance monitoring device of the present invention is primarily aimed at this important parameters of brake clearance, can be to the major and minor well winch in ground, the dish brake gap of inclined gallery, down-hole winch is detected in real time, provide quantitative authentic data, if any transfiniting or fault, can send the sound and light alarm signal at once, the prompting hoistman is taken care.
Description of drawings
Fig. 1 is a dish brake working clearance monitoring device functional block diagram of the present invention;
Fig. 2 is the functional block diagram of intelligent data acquisition unit of the present invention;
Fig. 3 is the functional block diagram of the automatic reset circuit of intelligent data acquisition unit of the present invention;
Fig. 4 is the functional block diagram of the display circuit of intelligent data acquisition unit of the present invention;
Fig. 5 is an intelligent data acquisition unit scm software diagram of circuit of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
As shown in Figure 1, dish brake working clearance monitoring device adopts primary and secondary structure, main frame is common computing machine or industrial computer, slave is an intelligent data acquisition unit, slave is gathered multichannel brake clearance signal at the scene and is dealt with back keeping in, and the quantity of intelligent data acquisition unit is determined according to dish brake quantity and installation site on the winch at scene.Most major and minor well winch has left and right 2 brake discs, therefore generally is provided with 2 intelligent data acquisition units.Exchange data using RS-485 bus between intelligent data acquisition unit and the ground-based computer, because the serial port of computing machine is a rs-232 standard, and must also will install the 232-485 level translator additional between the computing machine, promptly graphic communication interface (including power circuit) therefore.
The intelligent data acquisition unit main functional modules as shown in Figure 2, its control core be the MCS-51 series monolithic, it is every displacement pickup of cycle checkout constantly, and delivers to VK63 type intelligent liquid crystal display, also can connect bit machine and show at a distance.
Sensor detection circuit can connect 8 inductance fm displacement pickups or straight line resistor-type displacement pickup or eddy current displacement sensor at most.The output result of 3 kinds of sensors is different, and employed sensor detection circuit is also different.The frequency signal of inductance fm displacement pickup output enters multi-channel data selector CD4051, then the voltage signal of two kinds of sensor outputs then directly inserts AD converter TLC1543, patrol survey by Single-chip Controlling, the data of surveying adopt different processing methods to carry out data handing respectively according to different sensor type, various displacement pickups are all exported continuous signal, realize monitoring in real time.
The elasticity feeler lever of tangent displacement sensor well contacts with brake shoe, and make feeler lever that 3～5 millimeters amount of compression be arranged, with guarantee the brake shoe band-type brake, when declutching action feeler lever back and forth pine contract, the pine back and forth of feeler lever is compiled the amount of movement that has reflected brake shoe, thereby change out the gap of brake shoe and brake disc, i.e. the brake clearance data of appellation traditionally.Generally be directly installed on the brake shoe during installation of non-contact displacement transducer, when the dish-type brake shoe is held brake disc tightly, inductive head plane and brake disc are generally reserved the operation of returning to zero behind 2～3mm gap, when declutching, the displacement pickup inductive head moves with brake shoe is outer, record the value of remembering when the gap deducts former the zeroing, be the brake clearance data of current position.
Automatic reset circuit is to design for the functional reliability that prevents single chip microcomputer halt, raising instrument.It is made up of reset circuit of SCM, diode and oscillator.(can adjust) positive pulse of output between inciting somebody to action during the oscillator normal operation at regular intervals and give reset circuit, allow micro controller system reset.Micro controller system does not need reset signal when normal operation, only just need positive pulse of its output when single chip microcomputer halt.Utilize the zero clearing pin of oscillator, constantly go out a quenching pulse during micro controller system normal operation and give oscillator, making oscillator output complete is low level.Circuit structure is shown in 3.
Display circuit need show a plurality of brake clearances data, so selected the colored intelligent liquid crystal display of 15 row * 20 row VK63, it has that volume is little, low in energy consumption, radiationless, the life-span is long, ultra-thin, vibrationproof, characteristics such as explosion-proof, the inner industrial grade CPU that adopts, configuration secondary character library, accept control command data by serial ports or ternary data bus, in real time explicit user various curves to display, figure and Chinese and western language font.Be connected as shown in Figure 4 with micro controller system.
Need to prove that in actual field, intelligent data acquisition unit is not mostly selected this display circuit for use, show that therefore, the display circuit of this intelligent data acquisition unit is a selectable unit (SU) but all data are all focused on the host computer.
Communication circuit is to carry out data exchange between intelligent data acquisition unit and the computing machine in order to realize.Generally when not connecing the VK63 telltale, use, can be used as data acquisition extension set on the spot, by this communication circuit link to each other with communication interface with host computer finish communication link.
Storage is to preserve data with the function of zeroing circuit, does not lose under the situation of instrument power down, mainly preserves the numeral at zero point.What is called numeral at zero point just is meant that after instrument installs the initial distance of displacement pickup and brake disc by the button zero-setting button, is about to current initial distance value and preserves, and the numeral of telltale demonstration after this is the clearance distance of dish brake and brake disc.
Sound light alarming circuit is a radical function of intelligent data acquisition unit.Sound and light alarm is in 8 displacement measuring points, sends when wherein (greater than 2mm) transfinited in any gap, and when instrument has alarm sound, be which measuring point actually, then will be by light indication and the demonstration numerical value of observing each point.During warning, cooresponding indicator lamp shiny red, normal bright green.When being returned to safety distance with interior (less than 2mm) up to the gap of transfiniting, the sound and light alarm indication just removes.
The radical function of communication interface is that the communication standard of finishing up-computer is converted to the RS485 signal from RS232, and the up-downgoing of designation data is indicated in the process of data communication, simultaneously, structure for simplified system, the power supply of giving site intelligent data trap, on-the-spot all sensor is all from the output of this communication interface, like this, and the connecting cable of this communication interface and site intelligent data trap, form by four-core, be respectively A, B signal wire (SW) and 2 lines of DC12V power supply of RS-485.
Intelligent data acquisition unit can be with Liquid Crystal Display (LCD), also can not be with.Generally be placed on during installation near the dish brake, the brake disc both sides, and computing machine is placed on hoist house.All brake clearance data all are presented on the same screen, by operations such as keyboard or mouse return to zero, also can show functions such as each point data and curves.
The design of intelligent data acquisition unit scm software can be adopted assembly language or C language compilation.Except that automatic monitoring sensor can also with the host computer real-time Communication for Power, for improving the micro controller system work efficiency, the survey sensor frequency, with compunication all be set to interrupt mode, the timer/counter 1 of micro controller system is made Baud rate generator, timer/counter 0 works in mode 3, can carry out the internal reference frequency again regularly to outside sensor frequency counting, serial port works in mode 3, i.e. the multi-computer communication state.The main program workflow as shown in Figure 5.
The system software radical function:
● show every brake clearance in real time, report to the police during greater than 2.0mm (can adjust);
● the deposit of data self-timing, the deposit time gap can be provided with arbitrarily in 1 minute～4 hours;
● can at any time sensor be returned to zero according to actual conditions;
● the real-time curve function can be observed the real-time continuous situation of change of brake clearance;
● can set display frames such as 8 points, 12 points, 16 points, 24 points, at any time at 32 according to on-the-spot needs.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve the protection domain that sharp conversion all should belong to claims of the present invention.
Claims (9)
1. a dish brake working clearance monitoring device is characterized in that, comprises some displacement pickups, intelligent data acquisition unit, communication interface, main frame; Described displacement pickup is used to respond to the brake clearance signal of dish type brake shoe and brake disc, described displacement pickup output continuous signal, described intelligent collector connects described displacement pickup, be used to gather described brake clearance signal, and described brake clearance signal passed to described main frame by described communication interface, carry out data handing at described main frame.
2. dish brake working clearance monitoring device according to claim 1 is characterized in that described intelligent data acquisition unit comprises sensor detection circuit.
3. dish brake working clearance monitoring device according to claim 2 is characterized in that described sensor detection circuit is AD converter TLC1543.
4. dish brake working clearance monitoring device according to claim 2 is characterized in that described sensor detection circuit is multi-channel data selector CD4051.
5. dish brake working clearance monitoring device according to claim 1 is characterized in that described intelligent data acquisition unit comprises automatic reset circuit.
6. dish brake working clearance monitoring device according to claim 1 is characterized in that described intelligent data acquisition unit comprises display circuit.
7. dish brake working clearance monitoring device according to claim 1 is characterized in that described intelligent data acquisition unit comprises communication circuit, and described communication circuit links to each other with described communication interface, and host computer is finished communication link.
8. dish brake working clearance monitoring device according to claim 1 is characterized in that, described intelligent data acquisition unit comprises storage and zeroing circuit.
9. dish brake working clearance monitoring device according to claim 1 is characterized in that described intelligent data acquisition unit comprises sound light alarming circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100555815A CN102145866A (en) | 2011-03-09 | 2011-03-09 | Device for monitoring working clearance of disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100555815A CN102145866A (en) | 2011-03-09 | 2011-03-09 | Device for monitoring working clearance of disc brake |
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| CN102145866A true CN102145866A (en) | 2011-08-10 |
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| CN2011100555815A Pending CN102145866A (en) | 2011-03-09 | 2011-03-09 | Device for monitoring working clearance of disc brake |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303800A (en) * | 2011-09-26 | 2012-01-04 | 烟台金建冶金科技有限公司 | Mine hoist disc brake detecting device and detecting method thereof |
| CN103213916A (en) * | 2013-04-15 | 2013-07-24 | 中国矿业大学 | Mine lifter brake shoe clearance monitoring system |
| CN103513590A (en) * | 2013-07-30 | 2014-01-15 | 洛阳翔霏机电科技有限责任公司 | Monitoring terminal for brake gap |
| CN104085751A (en) * | 2014-06-27 | 2014-10-08 | 洛阳中重自动化工程有限责任公司 | Method and device for measuring gradient of lost motion time of disc brake in real time |
| CN112249949A (en) * | 2020-10-16 | 2021-01-22 | 武汉市云竹机电新技术开发有限公司 | Real-time fault alarm method for winch retraction and extension of inclined shaft anti-running vehicle |
| CN113353829A (en) * | 2021-07-13 | 2021-09-07 | 宝石电气设备有限责任公司 | Petroleum drilling machine winch fault edge calculation system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129386Y (en) * | 2007-12-04 | 2008-10-08 | 吴国新 | Hoister brake-shoe performance synthesis detector |
-
2011
- 2011-03-09 CN CN2011100555815A patent/CN102145866A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129386Y (en) * | 2007-12-04 | 2008-10-08 | 吴国新 | Hoister brake-shoe performance synthesis detector |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303800A (en) * | 2011-09-26 | 2012-01-04 | 烟台金建冶金科技有限公司 | Mine hoist disc brake detecting device and detecting method thereof |
| CN103213916A (en) * | 2013-04-15 | 2013-07-24 | 中国矿业大学 | Mine lifter brake shoe clearance monitoring system |
| CN103213916B (en) * | 2013-04-15 | 2016-02-24 | 中国矿业大学 | Mine lifter brake shoe clearance monitored control system |
| CN103513590A (en) * | 2013-07-30 | 2014-01-15 | 洛阳翔霏机电科技有限责任公司 | Monitoring terminal for brake gap |
| CN104085751A (en) * | 2014-06-27 | 2014-10-08 | 洛阳中重自动化工程有限责任公司 | Method and device for measuring gradient of lost motion time of disc brake in real time |
| CN112249949A (en) * | 2020-10-16 | 2021-01-22 | 武汉市云竹机电新技术开发有限公司 | Real-time fault alarm method for winch retraction and extension of inclined shaft anti-running vehicle |
| CN112249949B (en) * | 2020-10-16 | 2022-05-27 | 武汉市云竹机电新技术开发有限公司 | Real-time fault alarm method for winch retraction and extension of inclined shaft anti-running vehicle |
| CN113353829A (en) * | 2021-07-13 | 2021-09-07 | 宝石电气设备有限责任公司 | Petroleum drilling machine winch fault edge calculation system |
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Application publication date: 20110810 |