CN202880384U - Scraper conveyor protection device and scraper conveyor - Google Patents
Scraper conveyor protection device and scraper conveyor Download PDFInfo
- Publication number
- CN202880384U CN202880384U CN2012202762684U CN201220276268U CN202880384U CN 202880384 U CN202880384 U CN 202880384U CN 2012202762684 U CN2012202762684 U CN 2012202762684U CN 201220276268 U CN201220276268 U CN 201220276268U CN 202880384 U CN202880384 U CN 202880384U
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- control unit
- tail motor
- motor
- cooling water
- water outlet
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Abstract
The utility model provides a scraper conveyor protection device and a scraper conveyor, the protection device includes a pressure sensor, a first control unit and a latching switch, wherein the pressure sensor can be arranged at the position of a cooling water outlet of a tail motor in the scraper conveyer. The first control unit is connected with the pressure sensor; the latching switch is in a series connection with a control switch of the scraper conveyor and is in connection with the first control unit. The protection device judges whether the cooling structure of the tail motor in the scraper conveyer has a failure or not by monitoring the pressure of the cooling water outlet of the tail motor in the scraper conveyer. When the cooling structure of the tail motor doesn't work, the protective device enables the scraper conveyor to stop working by the latching switch locking the control switch of the scraper conveyor, and avoids that the continuous operation of the tail motor and a head motor produces damage to the tail motor and the head motor when the cooling structure of the tail motor doesn't work, and thereby providing a guarantee for the safe operation of the tail motor and the head motor.
Description
Technical field
The utility model Electrical Control Technology relates to a kind of protector of scraper conveyer and slat conveyer.
Background technology
Slat conveyer is the visual plant in the mineral mining, and slat conveyer is arranged at the driving surface of underground ore exploitation, is used for the mineral that transportation goes out from working face mining.
Slat conveyer mainly comprises head motor, tail motor and scraper chain etc., and scraper chain is comprised of the scraper plate of chain and certain intervals distance, is arranged between head motor and the tail motor.When the exploitation mineral, the tail motor is arranged on the upper crossheading of driving surface, the head motor is arranged at the lower crossheading of driving surface, and by head motor and the running of tail driven by motor scraper chain, thereby the mineral of exploiting out are unloaded to lower crossheading from upper crossheading passing by the scraper chain drive.
Because head motor and tail motor need long-play, cause easily two electric machine temperature rises to go beyond the limit, for avoiding reducing the service life of two motors because electric machine temperature rise transfinites, guarantee the long-term normal operation of motor, usually at head motor and tail motor internal water-cooling structure is set, this cooling structure comprises motor cooling water inlet and cooling water outlet, cooling pump by outer setting provides cooling water source, cooling water source flows into from the cooling import, flow out from the cooling outlet, by the mobile reduction electric machine temperature rise of cooling water expansion tank.
In the prior art, the device that motor cooling is detected is not set, therefore, can't judge whether et out of order of motor cooling, and because the working environment of slat conveyer is poor, particularly the tail motor is arranged at the return side of driving surface, ventilation condition is poor, it is more to produce dust during the exploitation mineral, if the cooling structure that cools off for the tail motor breaks down, the tail motor is not easy to distribute through the amount of heat that produces that works long hours, and is easy to cause the tail electrical fault.
The utility model content
The utility model provides a kind of protector of scraper conveyer; when avoiding in slat conveyer tail motor cooling et out of order; continue operation tail motor and head motor it is caused damage, for the safe operation of tail motor and head motor provides safeguard.
This fender guard comprises:
Pressure sensor for detection of the cooling water outlet place current pressure value of tail motor in the slat conveyer, be used for described current pressure value greater than the first preset pressure threshold value or described current pressure value less than the second preset pressure threshold status under output locking energizing signal the first control unit and be used for receiving described locking energizing signal after disconnect so that the out-of-work latch switch of slat conveyer, wherein
Described pressure sensor can be arranged at the cooling water outlet place of tail motor in the slat conveyer, described the first control unit links to each other with described pressure sensor, and described latch switch links to each other with the master cock series connection of slat conveyer and with described the first control unit.
Aforesaid protector of scraper conveyer wherein, also comprises:
Be used for generating after receiving described locking energizing signal the annunciator of alerting signal, described annunciator links to each other with described the first control unit.
Aforesaid protector of scraper conveyer wherein, also comprises:
For detection of the flow sensor of the present flow rate value at the cooling water outlet place of tail motor in the slat conveyer be used in described current pressure value greater than the first preset pressure threshold value and described present flow rate value greater than the first preset flow threshold value, or described current pressure value is less than the second preset pressure threshold value and described present flow rate value the second control unit less than output locking energizing signal under the second preset flow threshold status, wherein
Described flow sensor can be arranged at the cooling water outlet place of tail motor in the slat conveyer, and described the second control unit links to each other with described flow sensor with described pressure sensor respectively.
Aforesaid protector of scraper conveyer, wherein,
Described annunciator comprises relay, loud speaker and power supply, wherein, the input end of described relay links to each other with described the second control unit with described the first control unit respectively, the mouth open contact of described relay and described loud speaker and electric power generating composition series loop.
The utility model also provides a kind of slat conveyer, comprises the tail motor, wherein, also comprises the fender guard that the utility model provides, and pressure sensor is arranged at the cooling water outlet place of described tail motor in the described fender guard.
Aforesaid slat conveyer; wherein; described fender guard also comprises flow sensor and the second control unit, and described flow sensor is arranged at the cooling water outlet place of described tail motor, and described the second control unit links to each other with described flow sensor with described pressure sensor respectively.
The protector of scraper conveyer that the utility model provides; by the monitoring to the cooling water outlet place pressure of tail motor in the slat conveyer; whether the cooling structure of judging the tail motor et out of order; when the cooling structure et out of order of tail motor; master cock by latch switch locking slat conveyer; slat conveyer is quit work; at this moment; tail motor and head motor are all out of service (because the running state of tail motor and head motor is synchronous; or work simultaneously or simultaneously out of service); avoid when tail motor cooling et out of order; continue operation tail motor and head motor it is caused damage, for the safe operation of tail motor and head motor provides safeguard, and; avoid occuring industrial accident, improve the safety of mineral mining operation.
Description of drawings
The structural representation of the protector of scraper conveyer that Fig. 1 provides for the utility model embodiment;
The structural representation of the protector of scraper conveyer that Fig. 2 provides for another embodiment of the utility model.
The specific embodiment
The utility model embodiment provides a kind of protector of scraper conveyer; the structural representation of the protector of scraper conveyer that Fig. 1 provides for the utility model embodiment; as shown in Figure 1, this fender guard comprises pressure sensor 10, the first control unit 11 and latch switch 12.
The first control unit 11 links to each other with described pressure sensor 10, be used for described current pressure value greater than the first preset pressure threshold value or described current pressure value less than the second preset pressure threshold status under output locking energizing signal;
Latch switch 12 links to each other with master cock 50 series connection of slat conveyer and with described the first control unit 11, is used for disconnecting so that slat conveyer quits work after receiving described locking energizing signal.
Slat conveyer is the visual plant in the mineral mining, and slat conveyer is arranged at the driving surface of underground ore exploitation, is used for the mineral that transportation goes out from working face mining.
Slat conveyer mainly comprises head motor, tail motor and scraper chain etc., head motor and tail motor internal arrange water-cooling structure, this cooling structure comprises motor cooling water inlet and cooling water outlet, cooling pump by outer setting provides cooling water source, cooling water source flows into from the cooling import, flow out from the cooling outlet, by the mobile reduction electric machine temperature rise of cooling water expansion tank.
Because the head motor is arranged at the inlet side of driving surface, working environment is relatively better, and the tail motor is arranged at the return side of driving surface, and working environment is very poor, and, the temperature of surrounding environment is higher, the heat that produces during the operation of tail motor is not easy to distribute, and by the accumulation of practical experience, the cooling structure of tail motor is easy to break down as can be known, easily to causing motor infringement, and the probability of head motor cooling et out of order is very little.
Therefore; the fender guard of present embodiment; cooling water outlet place at the tail motor arranges pressure sensor; by pressure sensor the pressure in this exit is monitored; obtain the current pressure value at cooling water outlet place; and can send to the first control unit; the first control unit should current force value and the first preset pressure threshold value and the second preset pressure threshold value compare; when judging this current force value greater than the first preset pressure threshold value or this current force value during less than the second preset pressure threshold value, output locking energizing signal.
The first above-mentioned preset pressure threshold value is the upper pressure limit value at the cooling water outlet place of outflow tail motor, the second preset pressure threshold value is the low pressure limit value at the cooling water outlet place of outflow tail motor, the range of pressure at cooling water outlet place when this upper limit force value and the normal operation of threshold pression value representation tail motor cooling, if the pressure of cooling water outlet may occur to stop up or other faults greater than this higher limit explanation tail motor cooling, if cooling water outlet pressure less than this lower limit explanation tail motor cooling insufficient water may occur, cooling structure leaks or other faults.
Therefore, if the first control unit is judged this current force value greater than the first preset pressure threshold value or this current force value during less than the second preset pressure threshold value, tail motor cooling et out of order is described, output locking energizing signal, latch switch disconnects so that slat conveyer quits work after receiving the locking energizing signal.
As shown from the above technical solution; the protector of scraper conveyer that the utility model embodiment provides; by the monitoring to the cooling water outlet place pressure of tail motor in the slat conveyer; whether the cooling structure of judging the tail motor et out of order; when the cooling structure et out of order of tail motor; master cock by latch switch locking slat conveyer; slat conveyer is quit work; at this moment; tail motor and head motor are all out of service (because the running state of tail motor and head motor is synchronous; or work simultaneously or simultaneously out of service); avoid when tail motor cooling et out of order; continuing operation tail motor and head motor causes damage to it; for the safe operation of tail motor and head motor provides safeguard; and, avoid occuring industrial accident, improve the safety of mineral mining operation.
Each parts can have various ways and structure in the above-mentioned fender guard; for example; pressure sensor can be resistance strain gage formula pressure sensor, semiconductor strain chip pressure sensor, piezoresistive pressure sensor, inductance pressure transducer or capacitive pressure sensor etc., and the first control unit can be Programmable Logic Controller, micro controller system or the industrial computer etc. that comprise the dependent program instruction.
This latch switch can be the switch in the prior art, can be the various structures form, for example, can be a relay, the input end of relay links to each other with the first control unit, the mouth normally closed contact is connected with the master cock of slat conveyer, when the first control unit output locking energizing signal, the normally closed contact of relay disconnects, because this normally closed contact is connected with the master cock of slat conveyer, only have when the master cock of the normally closed contact of relay and slat conveyer is closed simultaneously, slat conveyer just brings into operation, when the normally closed contact of relay disconnects, no matter the master cock of slat conveyer is opened or closure, slat conveyer all will quit work.
The structural representation of the protector of scraper conveyer that Fig. 2 provides for another embodiment of the utility model, on the basis of above-described embodiment, further, as shown in Figure 2, this protector of scraper conveyer also comprises annunciator 13.
Described annunciator 13 links to each other with described the first control unit 11, is used for generating alerting signal after receiving described locking energizing signal.
Annunciator is for generation of alerting signal, can be by this alerting signal prompting staff tail motor cooling et out of order, so that the staff takes corresponding counter-measure, in time this tail motor is checked or maintenance etc., and be convenient in time find fault.
And as shown in Figure 2, this protector of scraper conveyer can also comprise flow sensor 14 and the second control unit 15.
Described flow sensor 14 can be arranged at the cooling water outlet place of tail motor in the slat conveyer;
Described the second control unit 15 links to each other with flow sensor 14 with described pressure sensor 10 respectively, be used in described current pressure value greater than the first preset pressure threshold value and described present flow rate value greater than the first preset flow threshold value, or described current pressure value less than the second preset pressure threshold value and described present flow rate value less than output locking energizing signal under the second preset flow threshold status.
This second control is single can be for Programmable Logic Controller, micro controller system, industrial computer or the corresponding hardware circuit etc. that comprise the dependent program instruction, to realize above-mentioned comparison and the function of output signal.
The first above-mentioned preset flow threshold value is the flow higher limit at the cooling water outlet place of outflow tail motor, the second preset pressure threshold value is the flux lower limit value at the cooling water outlet place of outflow tail motor, the flow range when this higher limit and lower limit represent the normal operation of tail motor cooling.
By detecting the force value at the cooling water outlet place of tail motor in the slat conveyer, whether the cooling structure that can judge the tail motor et out of order.But, only can't judge by the current pressure value and not be that cooling structure breaks down, but still may move the fault that impacts to motor, or judge inaccurate situation, for example, if the cooling structure of motor is normal, (or stopping up appears in the inner somewhere of cooling structure and cooling inflow point flow is greater than normal discharge, and cooling inflow point flow is far longer than normal discharge), at this moment, the pressure at coolant outlet place still may be in normal range, namely the current pressure value at coolant outlet place is less than the upper pressure limit value, greater than the low pressure limit value, and the flow value at coolant outlet place will be greater than the flow higher limit, still, in this case, because the cooling water flow of cooling inflow point is excessive, can the inner structure of motor be impacted, continues the long-time running meeting motor is caused damage.
Therefore, in the present embodiment, further, flow sensor and the second control unit are set, detect the present flow rate value at the cooling water outlet place of tail motor by flow sensor, the second control unit compares the current pressure value at cooling water outlet place and the first preset pressure threshold value and the second preset pressure threshold value, and, the present flow rate value at cooling water outlet place and the first preset flow threshold value and the second preset flow threshold value are compared, only have when judge the current pressure value greater than the first preset pressure threshold value and present flow rate value greater than the first preset flow threshold value, or the current pressure value less than the second preset pressure threshold value and present flow rate value less than under the second preset flow threshold status, just export the locking energizing signal.
As shown from the above technical solution, the scheme of present embodiment can be judged the fault that operation impacts to the tail motor more accurately, further the reliability service of tail motor is given security.
The annunciator of fender guard can adopt structure as shown in Figure 2 in above-described embodiment; annunciator 13 comprises relay 131, loud speaker 132 and power supply 133; wherein; the input end 1311 of described relay 131 links to each other with described the second control unit 15 with described the first control unit 11 respectively, and the mouth open contact 1312 of described relay 131 consists of series loop with described loud speaker 132 and power supply 133.
The input end of above-mentioned annunciator repeat circuit can receive the locking energizing signal of the first control unit or the transmission of the second control unit, this locking energizing signal can be voltage or current signal, after the input end of relay receives this signal, the mouth open contact is closed, thereby plugged is connected with loud speaker, loud speaker is sounded, and this sound is alerting signal.
Present embodiment only provides a kind of version of annunciator, and certainly, annunciator also can be other structures, and it is described to be not limited to present embodiment.For example, can be a loud speaker, the sound that sends by loud speaker is as alerting signal; Also can be with a light-emitting diode as annunciator, the light that sends by light-emitting diode is as alerting signal.
The utility model embodiment also provides a kind of slat conveyer, comprises the tail motor, also comprises the fender guard that the utility model embodiment provides, and pressure sensor is arranged at the cooling water outlet place of described tail motor in the described fender guard.
The slat conveyer that the utility model embodiment provides; by the fender guard that adopts the utility model embodiment to provide; by the monitoring to the cooling water outlet place pressure of tail motor in the slat conveyer; whether the cooling structure of judging the tail motor et out of order; when the cooling structure et out of order of tail motor; master cock by latch switch locking slat conveyer; slat conveyer is quit work; at this moment; tail motor and head motor are all out of service (because the running state of tail motor and head motor is synchronous; or work simultaneously or simultaneously out of service); avoid when tail motor cooling et out of order; continuing operation tail motor and head motor causes damage to it; for the safe operation of tail motor and head motor provides safeguard; and, avoid occuring industrial accident, improve the safety of mineral mining operation.
On the basis of above-described embodiment; further; the fender guard that adopts in this slat conveyer can also comprise flow sensor and the second control unit; described flow sensor is arranged at the cooling water outlet place of described tail motor, and described the second control unit links to each other with flow sensor with described pressure sensor respectively.
Slat conveyer in this enforcement, purpose and effect that flow sensor further is set at fender guard have description in the above-described embodiments, just repeat no more herein.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a protector of scraper conveyer is characterized in that, comprising:
Pressure sensor for detection of the cooling water outlet place current pressure value of tail motor in the slat conveyer, be used for described current pressure value greater than the first preset pressure threshold value or described current pressure value less than the second preset pressure threshold status under output locking energizing signal the first control unit and be used for receiving described locking energizing signal after disconnect so that the out-of-work latch switch of slat conveyer, wherein
Described pressure sensor can be arranged at the cooling water outlet place of tail motor in the slat conveyer, described the first control unit links to each other with described pressure sensor, and described latch switch links to each other with the master cock series connection of slat conveyer and with described the first control unit.
2. protector of scraper conveyer according to claim 1 is characterized in that, also comprises:
Be used for generating after receiving described locking energizing signal the annunciator of alerting signal, described annunciator links to each other with described the first control unit.
3. protector of scraper conveyer according to claim 2 is characterized in that, also comprises:
For detection of the flow sensor of the present flow rate value at the cooling water outlet place of tail motor in the slat conveyer be used in described current pressure value greater than the first preset pressure threshold value and described present flow rate value greater than the first preset flow threshold value, or described current pressure value is less than the second preset pressure threshold value and described present flow rate value the second control unit less than output locking energizing signal under the second preset flow threshold status, wherein
Described flow sensor can be arranged at the cooling water outlet place of tail motor in the slat conveyer, and described the second control unit links to each other with described flow sensor with described pressure sensor respectively.
4. protector of scraper conveyer according to claim 3 is characterized in that:
Described annunciator comprises relay, loud speaker and power supply, wherein, the input end of described relay links to each other with described the second control unit with described the first control unit respectively, the mouth open contact of described relay and described loud speaker and electric power generating composition series loop.
5. a slat conveyer comprises the tail motor, it is characterized in that, also comprises the arbitrary described fender guard of claim 1-4, and pressure sensor is arranged at the cooling water outlet place of described tail motor in the described fender guard.
6. slat conveyer according to claim 5; it is characterized in that; described fender guard also comprises flow sensor and the second control unit; described flow sensor is arranged at the cooling water outlet place of described tail motor, and described the second control unit links to each other with described flow sensor with described pressure sensor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202762684U CN202880384U (en) | 2012-06-12 | 2012-06-12 | Scraper conveyor protection device and scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202762684U CN202880384U (en) | 2012-06-12 | 2012-06-12 | Scraper conveyor protection device and scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202880384U true CN202880384U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202762684U Expired - Fee Related CN202880384U (en) | 2012-06-12 | 2012-06-12 | Scraper conveyor protection device and scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202880384U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444223A (en) * | 2014-12-04 | 2015-03-25 | 成都智科立信科技有限公司 | Industrial mining scraper conveyor device based on internet of things |
| CN107786042A (en) * | 2017-09-30 | 2018-03-09 | 枣庄矿业集团新安煤业有限公司 | Motor cooling water protection device |
| CN111007892A (en) * | 2019-11-28 | 2020-04-14 | 徐州中翰矿山设备制造有限公司 | Temperature measurement and cooling control system for mining equipment |
| CN114560256A (en) * | 2022-02-28 | 2022-05-31 | 国能神东煤炭集团有限责任公司 | Scraper conveyor fault detection method and system and storage medium |
-
2012
- 2012-06-12 CN CN2012202762684U patent/CN202880384U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444223A (en) * | 2014-12-04 | 2015-03-25 | 成都智科立信科技有限公司 | Industrial mining scraper conveyor device based on internet of things |
| CN107786042A (en) * | 2017-09-30 | 2018-03-09 | 枣庄矿业集团新安煤业有限公司 | Motor cooling water protection device |
| CN111007892A (en) * | 2019-11-28 | 2020-04-14 | 徐州中翰矿山设备制造有限公司 | Temperature measurement and cooling control system for mining equipment |
| CN114560256A (en) * | 2022-02-28 | 2022-05-31 | 国能神东煤炭集团有限责任公司 | Scraper conveyor fault detection method and system and storage medium |
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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 |
Granted publication date: 20130417 Termination date: 20150612 |
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| EXPY | Termination of patent right or utility model |