CN1788849A - Ball grinder bush protector - Google Patents
Ball grinder bush protector Download PDFInfo
- Publication number
- CN1788849A CN1788849A CN 200410104241 CN200410104241A CN1788849A CN 1788849 A CN1788849 A CN 1788849A CN 200410104241 CN200410104241 CN 200410104241 CN 200410104241 A CN200410104241 A CN 200410104241A CN 1788849 A CN1788849 A CN 1788849A
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- CN
- China
- Prior art keywords
- oil
- protector
- temperature
- grinding machine
- bearing shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The protector consists of a sensor unit and an electric controller. The protector has the following four functions: 1. no lubricant oil protection to stop the grinder while sending out phonetic and light warning in case of no lubricant oil in the running grinder bearing bush; 2. lubricant oil pre-warning temperature warning to send out phonetic and light warning in case of bearing bush lubricating oil reaching the pre-warning temperature; 3. water-containing lubricant oil warning to send out phonetic and light warning in case of lubricant oil containing water; and 4. lubricant oil dangerous temperature warning to stop the grinder while sending out phonetic and light warning in case of bearing bush lubricating oil reaching the dangerous temperature.
Description
Ball mill (to call grinding machine in the following text) is widely used in cement plant, ore deposit factory, refractory factory, thermal power plant.It is raw material, the grog that grinds cement; The breeze of ore deposit factory; The coal cinder powder of thermal power plant; The main large-scale production equipment of powdereds such as the material of refractory material.The bearing shell of grinding machine mostly adopts the babbit material to make at present; its performance is good; but price height; molten point is low; molten point is low to be its deadly defect; and great majority use the factories and miness of grinding machine to introduce the hot-air seasoning material in grinding material; therefore the temperature control of supply of bearing shell lubricating oil and oil is the important step of grinding machine safety in production; in case bearing shell oil starvation or oil temperature be too high all can be made bearing shell can not get lubrication protection and even burns out; grinding machine is sneaked into water at few oil of grinding Chang Fashengyin in service or oil; ashes etc. make deterioration of oil; make oily temperature rise; bearing shell can not get good lubrication protection so that burn out bearing shell and stop the mill, cause several thousand yuan at least of economic losses, units up to ten thousand at most; the indirect loss that stops production is just bigger, has designed ball grinder bush protector (calling protector in the following text) in order to address this problem us.
The composition of protector, function and operation principle
One, this protector is made up of sensing device and electric controller (being the protector body)
Sensing device is formed (accompanying drawing 6) by oil float, temperature sensor, mercoid switch, electric contact mercury-in-glass thermometer, oil box.
Electric controller is formed (accompanying drawing one) by power switch, wiring board, loudspeaker, signal lamp, box body etc.
Two, four of protector big functions
1, the oil starvation of bearing shell protection:
Grinding machine operation, bearing shell are when oil-free lubrication, and this protector instantaneous trip stops mill, and sends sound and light alarm.
The oil supply system of bearing shell is introduced oil in the oil box of sensing device during the grinding machine starting; fill spillway after several seconds to axle; guarantee axle; lubricating of bearing shell; oil float floats on pasta when oil in the box is full; connect float and shoulder the bar mercoid switch action of end in addition; make electric controller keep connecting the control loop power supply of grinding machine; guarantee its normal starting operation; in case when not having oil or fuel delivery and being less than the oil drain quantity of oil box bottom outage; pasta descends, and oil float sinks mercoid switch is set back, and protector cuts off the control power supply of grinding machine; stop mill and send sound and light alarm, thereby make bearing shell obtain the lubricated protection of oil starvation.
2, bearing shell lubricating oil gives alert temperature alarming:
Give alert temperature when (referring to surpass normal working temperature) when the temperature of bearing shell lubricating oil rises to, protector sends sound, light is reported to the police.
In the sensing device box temperature sensor is housed; can turn temperature indicating graduation dish; adjust to set give alert temperature number (as: 50 ℃), when the oil temperature rises when arriving this temperature (50 ℃), the electric contact of temperature sensor is connected; make the warning circuit work of protector; send sound and light alarm, alert operator will in time be checked reason, takes measures; fix a breakdown, guarantee the bearing shell safe operation.
Report to the police when 3, lubricating oil is moisture:
Impure when lubricated oil, contain moisture content or cooling water and omit when infiltrating lubricating oil, this protector sends sound and light alarm.
Two probes in parallel with the temperature sensor electric contact are housed in the sensing device oil box, and when oil contained moisture content, its effect was the same with temperature sensor.Make alarm circuit work, send sound and light alarm.
4, bearing shell lubricating oil dangerous temperature protection (setting trip protection):
When the temperature of bearing shell lubricating oil rose to dangerous temperature (promptly surpass and give alert temperature, but the end reaches the temperature that burns out bearing shell), protector made that the grinding machine tripping grinder is concurrently spoken, light is reported to the police.
The electric contact type mercury is housed in the sensing device box; it is highly sensitive; adjustable pin type contact is to the dangerous temperature of setting (as: 55 ℃); when mercury in the mercurial thermometer arrives this temperature (55 ℃) with oily temperature rise; pin type contact and mercury are connected; thereby make the trip protection loop works of protector, cut off grinding machine control power supply, stop grinding machine and send sound and light alarm immediately.
The above-mentioned setting of giving alert temperature and dangerous temperature is by the technological requirement of technical staff according to grinding machine, and the concrete condition of oil supply system is set, and especially dangerous temperature has been set high and do not had protective effect, sets tripping operation low frequently to be unfavorable for production.
Three, 1 type protector circuit working principle (accompanying drawing 2)
This circuit is by electric power loop, timing circuit, and oily temperature is given alert loop, and oily dangerous temperature is reported to the police and is given trip(ping) circuit, and oil starvation and oily dangerous temperature trip(ping) circuit (calling trip(ping) circuit in the following text) are formed.
1, electric power loop:
By zero line N, phase line L
2And by switch QS
1, QS
2Supply with the AC power of protector 220V.QS
2Be the power switch of protector, the power supply of its control trip(ping) circuit and transformer TC, the C of transformer TC secondary side
1, C
2Be filter condenser, diode D
1, D
2Supply power indicator lamp HL (green LED) after the full-wave rectification, timing circuit, oil give alert temperature alarming loop, the dc source that oily dangerous temperature is reported to the police and given trip(ping) circuit etc., diode D
3Supply with the RC integrating circuit in the timing circuit after the halfwave rectifier.The power switch QS of protector
2Be connected in the grinding machine control loop it and interlocking contact KA
1-1.2 equally play the interlocking effect, work as QS
2After the closure, i.e. after the protector work, the grinding machine control loop is connected, grinding machine could start, and works as QS
2Disconnect, grinding machine is with regard to fail to start, or out of service, therefore the random power switch QS of turn-off protection device when the grinding machine starting operation
2, producing in order to avoid stop the mill influence, the interlocking contact KM-2 of grinding machine A.C. contactor makes the timing circuit synchronous initiation of grinding machine and protector.
2, timing circuit:
Every oil supply system of just giving the bearing shell fuel feeding after grind body and rotate in grinding machine starting, is oil starvation at grinding machine by the static several seconds to starting, and trip(ping) circuit will be tripped because of oil starvation, disconnects grinding machine control power supply, grinding machine has been set up timing circuit with regard to fail to start for solving this contradiction spy.
Timing circuit is by RC integration timer, and trigger is carried out electrical equipment and formed.
At the grinding machine prestart, the time closing contact KT-3 that is connected on trip(ping) circuit disconnects, contact KA
1-1.2 connect the grinding machine control loop, so grinding machine can start.When grinding machine starting, contact KM2 on-delay loop, capacitor C begins charging, and a point current potential is pressed exponential increase among the figure, when a point current potential equals or during a little more than b point current potential, trigger is triggered, triode BG
1End BG
2Relay K T adhesive is carried out in conducting, its contact KT-3 closure, and bearing shell did not have the time-delay of oil to this instantaneous time of keeping supplying oil when the grinding machine starting was provided, and made grinding machine energy normal starting.While contact KT-2 closure, time-delay clearing lamp HL
2Green LED is bright, and contact KT-1 closure makes capacitor C discharge, prepares starting time-delay next time.
Adjust to the delay time that sets by the resistance of regulating the adjustable resistance R in the RC integrating circuit, but delay time has been set length, trip(ping) circuit loses the trip protection effect, has stopped after grinding machine starts and set to have lacked at once.Therefore the delay time of setting is slightly larger than grinding machine starting moment bearing shell and keeps supplying the oily needed time and be advisable.This protector is according to the fuel feeding situation of general oil supply system, and delay time is set 14 seconds (being reset and transferred rough being advisable by the technical staff according to actual conditions).
Every the grinding machine prestart to bearing shell for the system of Shan (as: oil pump feed, drive mill after driving oil pump earlier), just provide enough oil at the grinding machine prestart to bearing shell, there is not above-mentioned said phenomenon, so can be without timing circuit, at this moment can be with contact KT-3 short circuit, two interlocking lines on dismantle binding post D, the E.If still use timing circuit also not have harm.
3, oil gives alert temperature and oily moisture alarm circuit:
This circuit is by heat detector SAa, and the complementary audio frequency oscillator of straight coupling is formed.
When the temperature rise of bearing shell oil to set give alert temperature the time, the electric contact SAa connection positive potential of the temperature sensor in the sensing device box, signal lamp HL3 red light emitting diodes is bright, triode BG
3, BG
4Enter the amplification region, complementary circuit starting of oscillation, BG
4The signal of output is through R
2, C
2The positive and negative BG that is fed to
3Base stage, form vibration, export an audio signal and gives loudspeaker Y, loudspeaker send the sound warning of audio frequency.
It is in parallel on temperature sensor electric contact SAa,
,
Two probes stretch in the oil box, and when oil has moisture content, moisture content will
,
Two probes are connected, and it is the same with the SAa contact, makes this alarm circuit work.Red eye HL3 is bright, and loudspeaker Y is sent audible alarm.
4, oily dangerous temperature is reported to the police and is given trip(ping) circuit:
This circuit is made up of electric contact type mercurial thermometer, on-off circuit, relay, piezoelectric speaker.Report to the police when giving alert temperature when the temperature of lubricating oil rises to, when oily temperature continued to rise to the dangerous temperature of setting, the electric contact SAb of mercurial thermometer connected positive potential, and danger signal HL4 light emitting diode is bright, simultaneously triode BG
5Satisfy and close conducting, piezoelectric speaker HTD sends audible alarm, relay K A2 adhesive, and contact KA2 closure makes the trip(ping) circuit action, and grinding machine is shut down.During this oily dangerous temperature, we are called and give trip(ping) circuit to make circuit that the trip(ping) circuit tripping operation stops grinding indirectly.Warning function when the trip(ping) circuit tripping operation is also held concurrently in this loop is whenever trip(ping) circuit action, contact KA
1-3Closure, it is the same with the SAb contact, makes it send sound and light alarm.
5, oil starvation and oily dangerous temperature trip(ping) circuit (being trip(ping) circuit): this loop is the actuator that this protector keeps bearing shell, and it is realized by normally closed contact KA1～1.2 of relay K A1.
This loop is mainly by mercoid switch SA, and auxiliary reclay KA1 forms, power turn-on switch QS1 and protector power switch QS2, and power supply is connected in grinding machine controller loop.In grinding machine starting, for sufficient lubricating oil the time, oil float of sensing device box rises and makes mercoid switch SA action oil supply system to bearing shell, and contact SA1 disconnects, SA2 closure, greensignal light SGN bright (SGN has oily indicator lamp when being operation); After starting for 14 seconds, the time closing contact KT-3 closure of timing circuit.Be disconnected to the closure of KT-3 from SA1, make contact KA1～1.2 keep connecting grinding machines control power supplys, guaranteed the normal starting of grinding machine, tripping operation is got ready when also be bearing shell oil starvation in service and oily dangerous temperature simultaneously.When bearing shell was in operation oil starvation, oil float descended, and mercoid switch sets back, and contact SA1 connects trip(ping) circuit, relay K A1 (wiring diagram of accompanying drawing 4JTX type) adhesive, and contact KA1～1.2 disconnect grinding machine control loop power supply, and grinding machine is shut down.In like manner, when oily temperature rise during to the dangerous temperature set, contact KA2 connects trip(ping) circuit, makes it stop grinding.The SA2 contact disconnects when mercury contact SA1 is closed, and operation has oily indicator lamp SGN to go out.Red trip signal lamp SRD is bright when trip(ping) circuit is moved, while contact KA1～3 closures, and it is the same with the SAb electric contact, makes oil give alert temperature alarming loop works, and loudspeaker send warning, and signal lamp HL3 is bright.
Four, 2 (greatly) type ball grinder bush protector electrical schematic (accompanying drawing 3)
Five, installation instructions
1, sensing device is installed in the parallel installation in hollow shaft upper end, reinforces on bearing cage (accompanying drawing 7) these sensing device overall dimensions and determines to make according to grinding machine specification size.Decide according to end spaces on the bearing shell.Because of ball mill varies in size, model difference, fueller are also different.Scraper ring band oil is arranged, oil pump feed is arranged.No matter what fuel system is as long as introduced oil in the box.If fuel supply method oil pump feed, this mercurial thermometer can be installed in (the vertical installation) in the fuel tank.
2, ball grinder bush protector can be placed in the operating room and all can on the desktop.
Six, description of drawings:
Accompanying drawing 1: protector (electric controller) structural representation.
Accompanying drawing 2:1 type ball grinder bush protector electrical schematic diagram.
Accompanying drawing 3:2 (greatly) type ball grinder bush protector electrical schematic diagram.
Accompanying drawing 4:JTX type relay wiring figure.
Accompanying drawing 5: sensor tie plug bond figure.
Accompanying drawing 6: sensing device figure.Subordinate list:
| Numbering | Title | Quantity | Part drawing number | Specification | Model |
| 1 | Can | 1 | 1 | ||
| 2 | Oil float | 1 | |||
| 3 | Mercoid switch | 1 | Outsourcing | ||
| 4 | The oil float axle | 1 | Φ4×130mm | ||
| 5 | Support | 1 | |||
| 6 | Sieve silk | 2 | | ||
| 7 | Terminal box | 2 | |||
| 8 | Temperature-sensing element | 1 | Outsourcing | ||
| 9 | The box cover | 1 | |||
| 10 | Open tube | 1 | |||
| 11 | The electric contact mercurial thermometer | 1 | | ||
| 12 | Electric contact mercurial thermometer sleeve pipe | 1 | |||
| 13 | The cover pipe clip | 1 | |||
| 14 | The probe ceramic washer | 4 | | ||
| 15 | Probe sieve bar | 2 | Outsourcing | M4×140mm | |
| 16 | The temperature-sensing element fixed mount | 1 | |||
| 17 | Box cover sieve silk | 2 | M6×10mm | ||
| 18 | Link box sieve silk | 1 | M5×25mm | ||
| 19 | Cover pipe clip sieve silk | 2 | M5×25mm | ||
| 20 | Oil float location sieve silk | 1 | M5×10mm | ||
| 21 | Open tube is sieve silk fixedly | 1 | |||
| 22 | The temperature- | ||||
| 23 | Temperature-sensing element | ||||
| 24 | Temperature-sensing element is sieve silk fixedly | 2 | M5×10mm | ||
| 25 | Temperature-sensing element is sieve silk fixedly | 2 | M5×10mm |
Accompanying drawing 7: sensing device scheme of installation.
Sensing device is installed in grinding machine hollow shaft upper end, is installed in parallel in cover and goes up (the oil groove position of former fuel feeding), and the oil that oil wiper scrapes is directly introduced in the sensing device box.
1, sensing device 2, grinding mill bushing cover
3, angle bar 4 * 30 two (being welded on the axle cover, fixedly sensing device)
4, fixation of sensor screw rod, Luo cap 5, oil wiper
6, band scraper ring 7, axle cover observe cover 8, hollow shaft
9, grinding mill barrel 10, go into feed bin
Accompanying drawing 8: sensing device profile picture.
Accompanying drawing 9: protector profile picture.
Claims (1)
- " ball rub machine bearing shell protector " true new technique of using; It has dependable performance, and applicability is strong, and characteristics such as cost economic have further promoted the resist technology measure of ball grinder bush, and it is novel that this technology belongs to.The principal character of this protector: when the lubricating oil of grinding mill bushing contains moisture content or when surpassing normal allowable temperature, can in time report to the police; When bearing shell oil starvation or oily temperature reach dangerous temperature, can stop mill by instantaneous trip, the safe operation of protection grinding mill bushing.We belong to protection domain at the special application function that this protector had, and can not copy, and protection patents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410104241 CN1788849A (en) | 2004-12-17 | 2004-12-17 | Ball grinder bush protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410104241 CN1788849A (en) | 2004-12-17 | 2004-12-17 | Ball grinder bush protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1788849A true CN1788849A (en) | 2006-06-21 |
Family
ID=36787079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410104241 Pending CN1788849A (en) | 2004-12-17 | 2004-12-17 | Ball grinder bush protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1788849A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345599A (en) * | 2016-08-30 | 2017-01-25 | 西部黄金克拉玛依哈图金矿有限责任公司 | Bearing bush temperature control system |
| CN107036707A (en) * | 2016-02-04 | 2017-08-11 | 烟台东泽电气科技股份有限公司 | A kind of ball mill grinds sound detection device |
-
2004
- 2004-12-17 CN CN 200410104241 patent/CN1788849A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036707A (en) * | 2016-02-04 | 2017-08-11 | 烟台东泽电气科技股份有限公司 | A kind of ball mill grinds sound detection device |
| CN106345599A (en) * | 2016-08-30 | 2017-01-25 | 西部黄金克拉玛依哈图金矿有限责任公司 | Bearing bush temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |