CN205634525U - Mining hoist redution gear on -line monitoring device - Google Patents
Mining hoist redution gear on -line monitoring device Download PDFInfo
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- CN205634525U CN205634525U CN201620477416.7U CN201620477416U CN205634525U CN 205634525 U CN205634525 U CN 205634525U CN 201620477416 U CN201620477416 U CN 201620477416U CN 205634525 U CN205634525 U CN 205634525U
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- circuit
- sensor
- decelerator
- microcontroller
- mining elevator
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- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a mining hoist redution gear on -line monitoring device, including data monitoring terminal and the 2nd wireless communication module, data monitoring terminal includes microcontroller, data memory and the 2nd wireless communication module, microcontroller's input termination has AD converting circuit, key input circuit, a weighing sensor and a temperature sensor, oil pressure sensor and lubricating oil viscosity sensor, AD converting circuit's input termination has gaseous monitoring module and vibration monitoring module, gaseous monitoring module includes gas sensor and the first signal amplifier circuit, vibration monitoring module includes vibration sensor and the 2nd signal amplification circuit, microcontroller's output termination has relay protection module and audio alert circuit. The utility model discloses simple structure, gas strength, vibration amount, oil pressure and lubricating oil viscosity isoparametric among the hoist redution gear operating temperature that real -time supervision is mining, the operational environment make things convenient for the staff to master mining lifting machine retarder in working state.
Description
Technical field
This utility model belongs to mining equipment monitoring technical field, is specifically related to a kind of mining elevator decelerator and supervises online
Survey device.
Background technology
Underground coal mine geographical environment is complicated, and elevator is just particularly important status under mine, and decelerator is to carry
An indispensable part in the machine of liter, it may be said that not having decelerator, coal mine lifting system to will be unable to launch, whole operation system will
Can paralyse, therefore decelerator importance in lifting system is self-evident.Decelerator is as the important work of underground coal mine
Making equipment, its safety and stability plays significant role to the operation in whole colliery, affects the economic benefit in colliery, therefore
Monitoring to mining elevator decelerator has very important meaning.The working condition of underground coal mine is relatively severe, mining carries
Rise machine decelerator to be easier to break down, so needing hoist redution gear duty is monitored in real time；It addition, slow down
Lubricating status in device, i.e. oil body are also the key factors that decelerator is in safe operation, if decelerator is negative
Lotus is big and lubricating oil viscosity is low, and decelerator oil film under the effect of load can rupture, and causes the dry friction between reducer gear, as
Really the conference of the load of decelerator little lubricating oil viscosity increases the additional drag of transmission, and dissipating of affecting decelerator friction generates heat
Send out.Therefore, nowadays lack a kind of simple in construction, low cost, mining elevator decelerator on-Line Monitor Device reasonable in design,
By arranging temperature sensor, gas sensor, vibrating sensor, oil pressure sensor and lubricating oil viscosity sensor, supervise in real time
The Monitoring Data such as survey operating temperature, gas concentration, vibratory output, oil pressure and lubricating oil viscosity residing for hoist redution gear, pass through
Button inputting circuits and voice alarm circuit are set, Monitoring Data every to hoist redution gear can set threshold value, to exceeding threshold
The Monitoring Data of value carries out audio alert, by arranging the first wireless communication module and the second wireless communication module, and can be to carrying
The duty rising machine decelerator remotely monitors, it is to avoid staff carries out collection in worksite data, reduces danger coefficient, protects
Card mining elevator safe and stable operation.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of mining
Hoist redution gear on-Line Monitor Device, it designs simple in construction, it is achieved convenient, and functional reliability is high, it is achieved to mine lift
The isoparametric real-time prison of gas concentration, vibratory output, oil pressure and lubricating oil viscosity in machine decelerator operating temperature, working environment
Survey, facilitate staff to grasp mining elevator retarder in working state, practical, it is simple to promote the use of.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of mining elevator decelerator exists
Line monitoring device, it is characterised in that: include data monitoring terminal and the second wireless communication module being connected with Surveillance center, described
Data monitoring terminal includes microcontroller and the data storage connected with microcontroller and the first wireless communication module, described
The input of microcontroller is connected to A/D change-over circuit, for the button inputting circuits of parameter setting, for monitoring mining elevator
The temperature sensor of decelerator operating temperature, for monitoring oil pressure sensor and the use of mining elevator reducer gear case oil pressure
In the lubricating oil viscosity sensor of monitoring mining elevator reducer gear case lubricating oil viscosity, described A/D change-over circuit defeated
Entering to be terminated with gas-monitoring module and vibration monitoring module, described gas-monitoring module includes gas sensor and and gas sensing
The first signal amplification circuit that device outfan connects, described vibration monitoring module includes vibrating sensor and defeated with vibrating sensor
Go out the secondary signal amplifying circuit that connects of end, the outfan of described first signal amplification circuit and secondary signal amplifying circuit defeated
Going out the end input all with A/D change-over circuit to connect, the outfan of described microcontroller is connected to relay protection module and voice
Warning circuit, described relay protection module includes optical coupling isolation circuit and the relay connected with optical coupling isolation circuit outfan
Trip circuit, the input of described optical coupling isolation circuit connects with the outfan of microcontroller；
Described Surveillance center includes host computer, and described microcontroller passes through the first wireless communication module and the second radio communication
Module and host computer carry out two-way communication.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described temperature sensor is temperature
Degree sensor DS18B20, described A/D change-over circuit includes A/D conversion chip ADC0832.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described gas sensor is MQ-
2 gas sensors, described first signal amplification circuit includes amplifier LM833.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described vibrating sensor is
MLC-9268 vibrating sensor, described first signal amplification circuit includes amplifier LM358.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described oil pressure sensor includes
PTG503H oil pressure sensor.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described lubricating oil viscosity senses
Device includes FWS-2 lubricating oil viscosity sensor.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described first radio communication mold
Block and the second wireless communication module are ZigBee wireless communication module.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described voice alarm circuit bag
Include chips W T588D.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described optical coupling isolation circuit bag
Including chip TLP521, the 1st pin of described chip TLP521 connects through resistance R4 and 5V power output end, described chip TLP521
The 2nd pin divide two-way, a road connects through the negative electrode of resistance R6 with commutation diode D1, and another road connects with microcontroller；Institute
The anode stating commutation diode D1 connects with 5V power output end, and the 3rd pin of described chip TLP521 is through resistance R5 Yu 12V electricity
Source output terminal connects；Described relay trip circuit includes that audion Q1 and relay K 1, the base stage of described audion Q1 divide two
Road, a road connects with the 4th pin of chip TLP521, and another road is through resistance R7 ground connection；The colelctor electrode of described audion Q1 divides two
Road, a road connects with the anode of commutation diode D2, and another road connects with one end of the coil of relay K 1, described rectification two pole
The other end of the negative electrode of pipe D2 and the coil of relay K 1 all connects with 12V power output end.
Above-mentioned a kind of mining elevator decelerator on-Line Monitor Device, it is characterised in that: described microcontroller includes list
Sheet machine or ARM microcontroller.
This utility model compared with prior art has the advantage that
1, this utility model is by arranging temperature sensor, gas sensor, vibrating sensor, oil pressure sensor and lubrication
Oil viscosity sensor, gas concentration in Real-time Collection hoist redution gear operating temperature, working environment, vibratory output, oil pressure and
The Monitoring Data such as lubricating oil viscosity, it is to avoid mining elevator decelerator temperature is too high, the blocking of venthole, occur high vibration,
Oil pressure exception or lubricating oil viscosity are the most up to standard, it is ensured that mining elevator decelerator safe and stable operation, and circuit is simple, it is simple to promote
Use.
2, this utility model is by arranging button inputting circuits and voice alarm circuit, can prison every to hoist redution gear
Survey data setting threshold value, the Monitoring Data exceeding threshold value is carried out audio alert, remind staff to get rid of, prevent mining
Hoist redution gear infringement is just keeped in repair, and makes mining elevator stop production, affects the economic benefit in colliery.
3, this utility model is by arranging relay protection module, including optical coupling isolation circuit and relay trip circuit,
When the vibratory output of vibrating sensor detection exceedes the vibratory output threshold value set in advance, control relay by optical coupling isolation circuit
Trip circuit works, and the very first time cuts off the power supply of mining elevator, reduces accident scope.
4, this utility model is by arranging the first wireless communication module and the second wireless communication module, Monitoring Data is uploaded
To Surveillance center, it is achieved the long-range monitoring to the duty of hoist redution gear, it is to avoid staff carries out collection in worksite number
According to, reducing danger coefficient, circuit is reliable and stable, it is simple to monitoring.
In sum, this utility model design simple in construction, it is achieved convenient, functional reliability is high, it is achieved to mine lift
The isoparametric real-time prison of gas concentration, vibratory output, oil pressure and lubricating oil viscosity in machine decelerator operating temperature, working environment
Survey, facilitate staff to grasp mining elevator retarder in working state, practical, it is simple to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is the circuit connecting relation schematic diagram of this utility model optical coupling isolation circuit and relay trip circuit.
Description of reference numerals:
1 microcontroller；2 temperature sensors；3 gas sensors；
4 first signal amplification circuits；5 vibrating sensors；6 secondary signal amplifying circuits；
7 A/D change-over circuits；8 oil pressure sensors；9 lubricating oil viscosity sensors；
10 button inputting circuits；11 data storages；12 optical coupling isolation circuits；
13 relay trip circuits；14 voice alarm circuit；15 first wireless communication modules；
16 second wireless communication modules；17 host computers.
Detailed description of the invention
As it is shown in figure 1, this utility model includes data monitoring terminal and the second radio communication mold being connected with Surveillance center
Block 16, described data monitoring terminal includes that microcontroller 1 and the data storage 11 and first connected with microcontroller 1 are wireless
Communication module 15, the input of described microcontroller 1 is connected to A/D change-over circuit 7, the button inputting circuits arranged for parameter
10, for monitoring the temperature sensor 2 of mining elevator decelerator operating temperature, for monitoring mining elevator reducer gear
The oil pressure sensor 8 of case oil pressure and for monitoring the lubricating oil viscosity sensing of mining elevator reducer gear case lubricating oil viscosity
Device 9, the input of described A/D change-over circuit 7 is connected to gas-monitoring module and vibration monitoring module, described gas-monitoring module bag
Include gas sensor 3 and the first signal amplification circuit 4 connected with gas sensor 3 outfan, described vibration monitoring module bag
Including vibrating sensor 5 and the secondary signal amplifying circuit 6 connected with vibrating sensor 5 outfan, described first signal amplifies electricity
The outfan on road 4 and the outfan of secondary signal amplifying circuit 6 all inputs with A/D change-over circuit 7 connect, described microcontroller
The outfan of device 1 is connected to relay protection module and voice alarm circuit 14, and described relay protection module includes light-coupled isolation
Circuit 12 and the relay trip circuit 13 connected with optical coupling isolation circuit 12 outfan, the input of described optical coupling isolation circuit 12
End connects with the outfan of microcontroller 1；
Described Surveillance center includes host computer 17, and described microcontroller 1 is by the first wireless communication module 15 and the second nothing
Line communication module 16 and host computer 17 carry out two-way communication.
In the present embodiment, described temperature sensor 2 is temperature sensor DS18B20, and described A/D change-over circuit 7 includes A/D
Conversion chip ADC0832.
In the present embodiment, described gas sensor 3 is MQ-2 gas sensor, and described first signal amplification circuit 4 includes
Amplifier LM833.
In the present embodiment, described vibrating sensor 5 is MLC-9268 vibrating sensor, described secondary signal amplifying circuit 6
Including amplifier LM358.
In the present embodiment, described oil pressure sensor 8 includes PTG503H oil pressure sensor.
In the present embodiment, described lubricating oil viscosity sensor 9 includes FWS-2 lubricating oil viscosity sensor.
In the present embodiment, described first wireless communication module 15 and the second wireless communication module 16 are ZigBee channel radio
Letter module.
In the present embodiment, described voice alarm circuit 14 includes chips W T588D.
As in figure 2 it is shown, in the present embodiment, described optical coupling isolation circuit 12 includes chip TLP521, described chip TLP521
The 1st pin connect through resistance R4 and 5V power output end, the 2nd pin of described chip TLP521 divides two-way, and a road is through resistance
R6 connects with the negative electrode of commutation diode D1, and another road connects with microcontroller 1；The anode of described commutation diode D1 and 5V electricity
Source output terminal connects, and the 3rd pin of described chip TLP521 connects through resistance R5 and 12V power output end；Described relay is jumped
Lock circuit 13 includes that audion Q1 and relay K 1, the base stage of described audion Q1 divide two-way, a road and the 4th of chip TLP521
Pin connects, and another road is through resistance R7 ground connection；The colelctor electrode of described audion Q1 divides two-way, a road and the sun of commutation diode D2
Pole connects, and another road connects with one end of the coil of relay K 1, the negative electrode of described commutation diode D2 and the line of relay K 1
The other end of circle all connects with 12V power output end.
Time actually used, the normally-closed contact of described relay K 1 is serially connected in the current supply circuit of mining elevator.
In the present embodiment, described microcontroller 1 includes single-chip microcomputer or ARM microcontroller.
When this utility model uses, preset temperature threshold, gas concentration threshold, vibration by button inputting circuits 10
Amount threshold value, oil pressure threshold value and lubricating oil viscosity threshold value, the operating temperature of mining elevator decelerator is monitored in temperature sensor 2 in real time
And the temperature value collected is sent to microcontroller 1, microcontroller 1 is by the temperature value received and predetermined temperature threshold
Value compares, and when the temperature value that temperature sensor 2 collects is more than temperature threshold, microcontroller 1 controls audio alert electricity
Road 14 sends voice message, reminds staff；Gas sensor 3 is monitored in mining elevator decelerator working environment in real time
The gas concentration signal collected also is sent into the first signal amplification circuit 4, at the first signal amplification circuit 4 by gas concentration
Sending after reason to A/D change-over circuit 7, shaking of mining elevator decelerator rated load operation monitored in real time by vibrating sensor 5
The vibratory output signal collected also is sent to secondary signal amplifying circuit 6, after secondary signal amplifying circuit 6 processes by momentum
Sending to A/D change-over circuit 7, A/D change-over circuit 7 receives gas concentration signal and the vibrating sensing of gas sensor 3 output
The vibratory output signal of device 5 output, completes the analogue signal conversion to digital signal, and by the digital gas concentration sum after conversion
Word vibratory output sends to microcontroller 1, and the gas concentration received is entered by microcontroller 1 with gas concentration threshold set in advance
Row compares, and the digital vibratory output received is compared by microcontroller 1 with vibratory output threshold value set in advance, works as gas sensing
When the gas concentration that device 3 collects is more than gas concentration threshold, microcontroller 1 controls voice alarm circuit 14 and works, sends language
Sound is pointed out, and reminds staff to note investigating mining elevator decelerator venthole with or without blocking；When vibrating sensor 5 detects
Vibratory output more than vibratory output threshold value set in advance time, microcontroller 1 controls relay by optical coupling isolation circuit 12 and trips
Circuit 13 works, and normally closed electric shock of relay in relay trip circuit 13 disconnects, and disconnects the current supply circuit of mining elevator, ore deposit
Quit work with elevator, the expansion of Accident prevention；Oil pressure sensor 8 is monitored the oil pressure of mining elevator decelerator in real time and incites somebody to action
The oil pressure collected sends to microcontroller 1, and the oil pressure received is compared by microcontroller 1 with oil pressure threshold value set in advance
Relatively, when the oil pressure that oil pressure sensor 8 collects does not meets oil pressure threshold range, microcontroller 1 controls voice alarm circuit 14
Work, sends voice message, to staff's prompting message, it is ensured that the oil pressure of mining elevator decelerator is in OK range,
Ensure that mining elevator decelerator normally works；Lubricating oil viscosity sensor 9 is monitored in real time in mining elevator decelerator and is lubricated
The lubricating oil viscosity collected also is sent to microcontroller 1 by oil viscosity, microcontroller 1 by the lubricating oil viscosity that receives with pre-
The lubricating oil viscosity threshold value first set compares, and the lubricating oil viscosity collected when lubricating oil viscosity sensor 9 does not meets profit
During oil viscosity threshold range, microcontroller 1 controls voice alarm circuit 14 and works, and sends voice message, carries to staff
The information of waking up, it is ensured that the lubricating oil viscosity threshold value of mining elevator decelerator is in OK range, it is ensured that mining elevator decelerator
Normal work；
It addition, microcontroller 1 is by the operating temperature of mining elevator decelerator received, gas concentration, numeral vibration
The Monitoring Data such as amount, oil pressure and lubricating oil viscosity are stored in data storage 11, also by the first wireless communication module 15
Host computer 17 is sent into, easily remote to hoist redution gear duty of general work personnel with the second wireless communication module 16
Range monitoring, it is to avoid staff carries out collection in worksite data, reduces danger coefficient, ensures that mining elevator is transported the most safely simultaneously
OK, practical.
The above, be only preferred embodiment of the present utility model, not impose any restrictions this utility model, every
Any simple modification, change and equivalent structure change above example made according to this utility model technical spirit, the most still
Belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. a mining elevator decelerator on-Line Monitor Device, it is characterised in that: include data monitoring terminal and with monitoring in
The heart connect the second wireless communication module (16), described data monitoring terminal include microcontroller (1) and with microcontroller (1)
The data storage (11) connected and the first wireless communication module (15), the input of described microcontroller (1) is connected to A/D conversion
Circuit (7), the button inputting circuits (10) arranged for parameter, for monitoring the temperature of mining elevator decelerator operating temperature
Sensor (2), for monitoring the oil pressure sensor (8) of mining elevator reducer gear case oil pressure and be used for monitoring mine lift
The lubricating oil viscosity sensor (9) of machine reducer gear case lubricating oil viscosity, the input of described A/D change-over circuit (7) is connected to
Gas-monitoring module and vibration monitoring module, described gas-monitoring module include gas sensor (3) and with gas sensor (3)
The first signal amplification circuit (4) that outfan connects, described vibration monitoring module includes vibrating sensor (5) and and vibrating sensing
The secondary signal amplifying circuit (6) that device (5) outfan connects, the outfan of described first signal amplification circuit (4) and the second letter
The outfan of number amplifying circuit (6) all inputs with A/D change-over circuit (7) connect, the output termination of described microcontroller (1)
Have relay protection module and voice alarm circuit (14), described relay protection module include optical coupling isolation circuit (12) and with
The relay trip circuit (13) that optical coupling isolation circuit (12) outfan connects, the input of described optical coupling isolation circuit (12) with
The outfan of microcontroller (1) connects；
Described Surveillance center includes host computer (17), and described microcontroller (1) passes through the first wireless communication module (15) and second
Wireless communication module (16) and host computer (17) carry out two-way communication.
2. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1, it is characterised in that: described temperature
Sensor (2) is temperature sensor DS18B20, and described A/D change-over circuit (7) includes A/D conversion chip ADC0832.
3. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Gas sensor (3) is MQ-2 gas sensor, and described first signal amplification circuit (4) includes amplifier LM833.
4. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Vibrating sensor (5) is MLC-9268 vibrating sensor, and described secondary signal amplifying circuit (6) includes amplifier LM358.
5. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Oil pressure sensor (8) includes PTG503H oil pressure sensor.
6. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Lubricating oil viscosity sensor (9) includes FWS-2 lubricating oil viscosity sensor.
7. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
First wireless communication module (15) and the second wireless communication module (16) are ZigBee wireless communication module.
8. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Voice alarm circuit (14) includes chips W T588D.
9. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Optical coupling isolation circuit (12) includes chip TLP521, and the 1st pin of described chip TLP521 is through resistance R4 and 5V power output end
Connecting, the 2nd pin of described chip TLP521 divides two-way, and a road connects through the negative electrode of resistance R6 with commutation diode D1, another
Road connects with microcontroller (1)；The anode of described commutation diode D1 connects with 5V power output end, described chip TLP521's
3rd pin connects through resistance R5 and 12V power output end；Described relay trip circuit (13) includes audion Q1 and relay
K1, the base stage of described audion Q1 divides two-way, and a road connects with the 4th pin of chip TLP521, and another road is through resistance R7 ground connection；
The colelctor electrode of described audion Q1 divides two-way, and a road connects with the anode of commutation diode D2, another road and the line of relay K 1
Circle one end connect, the other end of the negative electrode of described commutation diode D2 and the coil of relay K 1 all with 12V power output end
Connect.
10. according to a kind of mining elevator decelerator on-Line Monitor Device described in claim 1 or 2, it is characterised in that: described
Microcontroller (1) includes single-chip microcomputer or ARM microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477416.7U CN205634525U (en) | 2016-05-23 | 2016-05-23 | Mining hoist redution gear on -line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620477416.7U CN205634525U (en) | 2016-05-23 | 2016-05-23 | Mining hoist redution gear on -line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205634525U true CN205634525U (en) | 2016-10-12 |
Family
ID=57054621
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620477416.7U Expired - Fee Related CN205634525U (en) | 2016-05-23 | 2016-05-23 | Mining hoist redution gear on -line monitoring device |
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| CN (1) | CN205634525U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906867A (en) * | 2017-03-29 | 2017-06-30 | 深圳市源畅通科技有限公司 | A kind of excavator control system with automatic early-warning function |
| CN107830159A (en) * | 2017-10-16 | 2018-03-23 | 江西海峰重工科技有限责任公司 | A kind of detection supervising device for mine vehicle back axle |
| CN108147250A (en) * | 2018-01-05 | 2018-06-12 | 南通大学 | A kind of frictional mine hoist rigid cage guide fault location system |
| CN109589156A (en) * | 2018-10-31 | 2019-04-09 | 杭州市第人民医院 | A kind of vibration liver pincers |
| CN111811245A (en) * | 2020-07-17 | 2020-10-23 | 蚌埠学院 | Drying device for meat products |
-
2016
- 2016-05-23 CN CN201620477416.7U patent/CN205634525U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906867A (en) * | 2017-03-29 | 2017-06-30 | 深圳市源畅通科技有限公司 | A kind of excavator control system with automatic early-warning function |
| CN107830159A (en) * | 2017-10-16 | 2018-03-23 | 江西海峰重工科技有限责任公司 | A kind of detection supervising device for mine vehicle back axle |
| CN108147250A (en) * | 2018-01-05 | 2018-06-12 | 南通大学 | A kind of frictional mine hoist rigid cage guide fault location system |
| CN109589156A (en) * | 2018-10-31 | 2019-04-09 | 杭州市第人民医院 | A kind of vibration liver pincers |
| CN111811245A (en) * | 2020-07-17 | 2020-10-23 | 蚌埠学院 | Drying device for meat products |
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| Date | Code | Title | Description |
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| 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: 20161012 Termination date: 20170523 |