CN202575827U - Warning device for mine winch and mine winch - Google Patents
Warning device for mine winch and mine winch Download PDFInfo
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- CN202575827U CN202575827U CN 201220172146 CN201220172146U CN202575827U CN 202575827 U CN202575827 U CN 202575827U CN 201220172146 CN201220172146 CN 201220172146 CN 201220172146 U CN201220172146 U CN 201220172146U CN 202575827 U CN202575827 U CN 202575827U
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- 238000005065 mining Methods 0.000 claims abstract description 31
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 42
- 239000011707 mineral Substances 0.000 abstract description 42
- 238000004519 manufacturing process Methods 0.000 abstract description 6
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- 230000001133 acceleration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 238000009833 condensation Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a warning device for a mine winch and the mine winch. The warning device comprises a timing signal collector, a timer, a current sensor, a current comparator and a warning unit, wherein the timing signal collector is connected with a gate control switch of a skip in the winch and connected with a timer, the current sensor is connected with an armature current input end of a motor in the winch, the current comparator is connected with the current sensor, and the warning unit is connected with the current comparator. The warning device can generate warning signals when the skip in the winch is unloaded incompletely, so that workers can remind winch operators to take corresponding responding measures timely, and further safety production accidents is avoided, and the safety of mineral mining operation is improved.
Description
Technical Field
The utility model relates to an alarm control technique especially relates to a mining winch alarm device and mining winch.
Background
In mineral mining, a hoisting device is provided, the mined minerals are hoisted to the ground from a main mining well by the hoisting device, and a multi-rope friction type winch is widely used in mineral mining as a hoisting device.
The friction-type winch of restricting more includes main drum, rope, motor and skip etc. links to each other with main drum by the pivot of motor, and the rope twines on main drum, and the skip is connected respectively at the both ends of rope, and the skip is used for loading the mineral that treats the promotion.
In the existing winch control system, the main roller is driven to rotate towards different directions by controlling the rotation direction of the motor rotating shaft, so that skip buckets connected to two ends of a rope move towards different directions, and the two skip buckets are alternately lifted to the ground or lowered to the underground from the underground.
And because the skip is connected respectively at the both ends of rope, marks as main skip and vice skip that colludes respectively, the motion direction of two skips is opposite, and when main skip that colludes rose, vice skip must descend. When the main skip is located underground and loaded with minerals, the auxiliary skip is located on the ground to unload the minerals loaded in the skip, then the main roller is driven to rotate through the motor rotating shaft, so that the main skip loaded with the minerals is lifted to the ground, and meanwhile, the auxiliary skip unloaded with the minerals is lowered to the underground; when the main skip bucket finishes the mineral unloading on the ground and the auxiliary skip bucket loads the minerals underground, at the moment, the rotating shaft of the control motor reversely rotates to drive the main roller to reversely rotate, the main skip bucket is lowered underground, and the auxiliary skip bucket is lifted to the ground. The above process is repeated to continually lift the mined material from the main well to the surface.
However, when unloading minerals, since mined minerals may be relatively wet or contain a large amount of moisture, when such minerals are loaded in a skip and lifted to the surface, the unloading may be incomplete because the temperature is high downhole, and in case of winter, the temperature of the surface is low, so that a part of the minerals loaded in the skip is likely to be frozen in the skip or the viscosity of the loaded material is high due to condensation of water vapor, so that the part of the minerals is not easily unloaded.
If this skip that should be unloaded mineral has most mineral because above-mentioned reason not unloaded, transfers this skip to and continues to load mineral in the skip after the pit, causes skip overload very easily, if promote the skip that overloads through hoisting device this moment, the rope slipping accident takes place easily, or causes hoisting device out of control and takes place other major production accidents.
SUMMERY OF THE UTILITY MODEL
An aspect of the utility model is to provide a mining winch alarm device, this alarm device, include:
the timing signal collector is used for generating a timing signal when a gate control switch of a skip in the winch is in an open state; the timer is used for starting timing after receiving the timing starting signal and generating a collecting signal after preset time; the current sensor is used for collecting the armature input current value of the motor in the winch under the state of receiving the collecting signal; the current comparator is used for outputting an alarm trigger signal when the input current value is smaller than a preset current value, and the alarm is used for generating an alarm signal after receiving the alarm trigger signal; wherein,
the timing signal collector is connected with a gate control switch of a skip bucket in the winch, the timing signal collector is connected with the timer, the current sensor is connected with an armature current input end of a motor in the winch, the current comparator is connected with the current sensor, and the alarm is connected with the current comparator.
The mining winch alarm device as described above, further comprising:
and the locking switch is used for being disconnected under the condition of receiving the alarm trigger signal so as to prevent the gate of the skip from being automatically opened, is connected with the gate control switch of the skip in series and is connected with the current comparator.
The mining winch alarm device comprises a relay, a loudspeaker and a power supply, wherein,
the input end of the relay is connected with the current comparator, and the normally open contact at the output end of the relay, the loudspeaker and the power supply form a series loop.
The utility model discloses another aspect still provides a mining winch, including skip and motor, still includes the utility model provides an alarm device, the gate control switch of timing signal collector and skip among the alarm device links to each other, among the alarm device current sensor with the armature current input of motor links to each other.
The utility model provides a mine winch alarm device, which judges whether the skip enters a uniform speed operation stage when being lowered through a timer, so as to generate a collection signal to control the current sensor to collect the armature input current value of the motor when the skip runs at a constant speed, comparing the armature input current value of the motor with a preset current value through a current comparator to judge whether the skip is incompletely unloaded or not, when the acquired input current value is smaller than the preset current value, the condition that the skip is not completely unloaded is indicated, at the moment, the current comparator outputs an alarm trigger signal, the alarm receives the alarm trigger signal and then generates an alarm signal, the condition of incomplete uninstallation takes place for the suggestion staff skip to the staff in time reminds the staff of operation winch to take corresponding counter-measure, avoids the emergence of incident, improves the security of mineral exploitation operation.
Drawings
Fig. 1 is a schematic structural diagram of a mining winch alarm device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mining winch alarm device according to another embodiment of the present invention.
Detailed Description
The embodiment of the utility model provides a mining winch alarm device, figure 1 does the utility model provides a mining winch alarm device's that provides structural schematic diagram, as shown in figure 1, this alarm device specifically includes timing signal collector 10, time-recorder 11, current sensor 12, current comparator 13 and alarm 14.
The timing signal collector 10 is connected with a gate control switch 30 of a skip in the winch and used for generating a timing starting signal when the gate control switch of the skip is in an open state;
the timer 11 is connected with the timing signal collector 10 and used for starting timing after receiving the timing starting signal and generating a collecting signal after a preset time;
the current sensor 12 is connected with an armature current input end 31 of the motor in the winch and is used for collecting an armature input current value of the motor in the winch under the state of receiving the collecting signal;
the current comparator 13 is connected with the current sensor 12 and is used for outputting an alarm trigger signal when the input current value is smaller than a preset current value;
and the alarm 14 is connected with the current comparator 13 and used for generating an alarm signal after receiving the alarm trigger signal.
The mining winch is a common lifting device used in mineral mining, mined minerals can be lifted to the ground from a main mining well through the winch, the mining winch generally comprises a skip and a motor, the skip is used for loading the minerals, the motor is used for providing torque for the lifting skip, the skip which is loaded with the minerals is lifted to the ground, and the skip is lowered to the underground after the minerals are unloaded.
The working process of the mining winch is described below by taking a multi-rope friction type winch as an example.
In the working process of the mining winch, the main roller is driven to rotate towards different directions by controlling the rotation direction of the motor rotating shaft in the winch, so that the skips connected to two ends of the rope move towards different directions, and the two skips (respectively marked as the first skip and the second skip) are alternately lifted to the ground from the underground or lowered to the underground.
In the working process of the winch, the motor outputs electromagnetic torque, lifting power is provided for the skip through the electromagnetic torque, the size of the motor output electromagnetic torque is equal to the weight of the skip needing to be lifted to the ground minus the weight difference of the skip needing to be lowered, the armature input current value of the motor is in direct proportion to the electromagnetic torque output by the motor, namely the larger the electromagnetic torque output by the motor is, the larger the armature input current of the motor is.
Under the general condition, after the first skip that will load mineral promotes ground, transfer the second skip that is empty to the pit simultaneously, then open the gate control switch of the gate skip of skip, the gate of skip is opened, unloads the mineral in the first skip completely, also is that the mineral can not stay in this first skip, loads the mineral in the second skip simultaneously, transfers first skip to the pit again, promotes the second skip to ground.
However, when the first skip loaded with minerals is lifted to the ground, and the unloading is incomplete, that is, when the remaining part or most of the minerals in the first skip are lifted to the ground, if the first skip is lowered at this time, and the second skip loaded with minerals is lifted to the ground at the same time, because there are some minerals in the first skip, the magnitude of the output electromagnetic torque of the motor at this time is equal to the weight of the second skip minus the weight of the first skip, that is, the weight difference between the two, and the armature input current value of the motor is proportional to the electromagnetic torque output by the motor, so that the output electromagnetic torque of the motor is reduced compared with the normal case, and the armature input current value of the motor is smaller than the armature input current value of the motor under the normal case.
However, in the operation process of the winch, the two skips usually enter into constant speed operation after a short period of time of deceleration and acceleration, the armature input current value of the motor changes greatly in the deceleration and acceleration operation stage of the beginning stage of the two skips, and the armature input current value of the motor keeps a stable value after entering into the constant speed stage.
The working principle of the alarm device is as follows:
after the skip that will load mineral promotes to ground, when the uninstallation mineral, need open the gate of skip, consequently, link to each other timing signal collector and the gate control switch of skip, when the gate control switch of skip is opened, gather through timing signal collector and begin timing signal, the timer begins the timing after receiving this start timing signal, and generate the signal of gathering after the time of predetermineeing, this time of predetermineeing is for opening to the time that the skip got into the uniform velocity operation stage from the skip, then begin to gather the armature input current value of motor through current sensor, that is to say, the input current value that current sensor gathered is the current value that the skip got into the uniform velocity operation stage.
Secondly, comparing the acquired input current value with a preset current value through a current comparator, and outputting an alarm trigger signal when the input current value is smaller than the preset current value. The size of the preset current value is determined according to the size of the armature input current of the motor when the winch normally operates, namely, the armature input current value of the motor is determined when the skip is completely unloaded and the skip is lowered to the underground constant-speed operation stage. And, because the more mineral is detained in the skip, the smaller the armature input current value of the motor that gathers, consequently, can set up according to actual conditions and predetermine the current value, should predetermine the current value and can be less than the certain proportion of the armature input current value of motor under the normal condition, that is to say, when only detaining few part of mineral in the skip, it is little to the operation influence of winch, also can not take place the safety in production accident, still can regard winch normal operating, do not handle this kind of condition.
If the input current value of collection is less than preset current value, explain the skip and take place the condition of incomplete uninstallation, at this moment, a current comparator output alarm trigger signal, alarm signal is generated after this alarm trigger signal is received to the alarm to the unusual operational aspect takes place for the suggestion staff winch this moment, also is the condition that the skip took place incomplete uninstallation, so that the staff in time reminds the staff of operation winch to take corresponding counter-measure, avoid taking place the safety in production accident, improve the security of mineral exploitation operation.
For example, if the worker finds that the skip is early, the worker should operate and control the winch to stop lowering the skip, drive the winch to the unloading position and unload the skip again; if the delay is found, the underground loading station can be immediately informed, and the condition of the winch at the moment can be noticed, so that the vigilance of underground operators can be aroused, and the occurrence of safety production accidents can be avoided.
It should be noted that the working principle of the alarm device is described only by taking the multi-rope friction type winch as an example, and the alarm device is not only applicable to the mining winch with the structure, but also applicable to winches with other structures, as long as the working principle of the winch is the same as the principle.
Each part in the alarm device can have various forms and structures, for example, the timing signal collector can be a programmable controller containing related program instructions, a gate control switch of the skip bucket is connected with one port in the programmable controller, the programmable controller can collect the state of the port, when the gate control switch is opened, the state of the port can be set to be 0, at the moment, the programmable controller can generate a starting timing signal and send the starting timing signal to the timer, and the timer can start timing.
The timer can be an electronic type or an electromagnetic type timer, and the current sensor can be a current Hall sensor or an electromagnetic type sensor.
The current comparator can be realized by adopting the existing comparison circuit, one input end of the comparison circuit can be connected with the current sensor, the other input end of the comparison circuit is connected with a reference current source, the current of the reference current source is the preset current value, the current comparator can compare the armature input current value of the motor acquired by the current sensor with the reference current, and when the input current value is smaller than the preset current value, an electric signal can be output and can be used as an alarm trigger signal.
The alarm is used for generating an alarm signal, and can also be in various forms, for example, the alarm can be a loudspeaker, and the sound emitted by the loudspeaker is used as the alarm signal; or a light emitting diode can be used as an alarm, and light emitted by the light emitting diode is used as an alarm signal; the alarm can also be a loudspeaker and an electric lamp which are connected in series, and the sound emitted by the loudspeaker and the light emitted by the electric lamp are simultaneously used as alarm signals.
According to the technical scheme, the alarm device judges whether the skip enters a constant-speed operation stage or not when the skip is lowered through the timer, so as to generate a collection signal to control the current sensor to collect the armature input current value of the motor when the skip runs at a constant speed, comparing the armature input current value of the motor with a preset current value through a current comparator to judge whether the skip is incompletely unloaded or not, when the acquired input current value is smaller than the preset current value, the condition that the skip is not completely unloaded is indicated, at the moment, the current comparator outputs an alarm trigger signal, the alarm receives the alarm trigger signal and then generates an alarm signal, the condition of incomplete uninstallation takes place for the suggestion staff skip to the staff in time reminds the staff of operation winch to take corresponding counter-measure, avoids the emergence of incident, improves the security of mineral exploitation operation.
Fig. 2 is a schematic structural diagram of a mining winch alarm device according to another embodiment of the present invention, and on the basis of the above-mentioned embodiment, as shown in fig. 2, further, the mining winch alarm device further includes a locking switch 15, where the locking switch 15 is connected in series with a gate control switch 31 of the skip, and is connected to the current comparator 13, and is configured to disconnect the skip when receiving the alarm trigger signal state, so that the gate of the skip cannot be automatically opened.
In this embodiment, when the condition of incomplete uninstallation takes place for the skip, through the control switch of shutting switch locking gate, the gate that makes the skip can't be opened automatically, avoids repeatedly loading mineral in to the skip, avoids extravagant manpower and time, can improve the production efficiency of mineral exploitation operation.
This latching switch can be the switch among the prior art, can be multiple structural style, for example, can be a relay, the input current comparator of relay links to each other, output normal close contact and the gate control switch of skip are established ties, when current comparator output alarm trigger signal, the normal close contact disconnection of relay, because this normal close contact establishes ties with the gate control switch of skip, consequently, no matter the gate control switch of skip opens or is closed, the gate of skip all can't open automatically, only when the normal close contact of relay is closed, the gate control switch that could pass through winch control procedure automatic control skip is closed, thereby the gate of control skip is opened automatically.
As shown in fig. 2, the alarm 14 of the alarm device in this embodiment includes a relay 141, a speaker 142, and a power source 143, wherein an input 1411 of the relay 141 is connected to the current comparator 13, and a normally open contact 1412 of an output of the relay 141, the speaker 142, and the power source 143 form a series circuit.
The input end of the relay of the alarm can receive an alarm trigger signal transmitted by the current comparator, the alarm trigger signal can be a voltage signal or a current signal, and after the input end of the relay receives the signal, the normally open contact of the output end is closed, so that the power supply is connected with the loudspeaker, the loudspeaker makes a sound, and the sound is the alarm signal.
The present embodiment provides only a structural form of the alarm, and of course, the alarm may also have other structures, and is not limited to the embodiment.
The embodiment of the utility model provides a still provide a mining winch, including skip and motor, still include the utility model provides an alarm device, the gate control switch of timing signal collector and skip among the alarm device links to each other, timing signal current sensor with the armature current input of motor links to each other in the alarm device.
The embodiment of the utility model provides a mining winch is through adopting the embodiment of the utility model provides an alarm device can take place the condition of incomplete uninstallation at the skip, generates alarm signal to and the staff who reminds the operating winch in time takes corresponding counter-measure, avoids the emergence of incident, improves the security of mineral exploitation operation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. A mining winch alarm device, characterized by comprising:
the timing signal collector is used for generating a timing signal when a gate control switch of a skip in the winch is in an open state; the timer is used for starting timing after receiving the timing starting signal and generating a collecting signal after preset time; the current sensor is used for collecting the armature input current value of the motor in the winch under the state of receiving the collecting signal; the current comparator is used for outputting an alarm trigger signal when the input current value is smaller than a preset current value, and the alarm is used for generating an alarm signal after receiving the alarm trigger signal; the timing signal collector is connected with a gate control switch of a skip bucket in the winch, the timing signal collector is connected with the timer, the current sensor is connected with an armature current input end of a motor in the winch, the current comparator is connected with the current sensor, and the alarm is connected with the current comparator.
2. The mining winch alarm device of claim 1, further comprising:
and the locking switch is used for being disconnected under the condition of receiving the alarm trigger signal so as to prevent the gate of the skip from being automatically opened, is connected with the gate control switch of the skip in series and is connected with the current comparator.
3. The mining winch alarm device according to claim 1 or 2, wherein the alarm comprises a relay, a speaker and a power supply, wherein an input end of the relay is connected with the current comparator, and a normally open contact at an output end of the relay forms a series circuit with the speaker and the power supply.
4. A mining winch comprises a skip and a motor, and is characterized by further comprising an alarm device according to any one of claims 1 to 3, wherein a timing signal collector in the alarm device is connected with a gate control switch of the skip, and a current sensor in the alarm device is connected with an armature current input end of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172146 CN202575827U (en) | 2012-04-20 | 2012-04-20 | Warning device for mine winch and mine winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172146 CN202575827U (en) | 2012-04-20 | 2012-04-20 | Warning device for mine winch and mine winch |
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| CN202575827U true CN202575827U (en) | 2012-12-05 |
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| CN 201220172146 Expired - Fee Related CN202575827U (en) | 2012-04-20 | 2012-04-20 | Warning device for mine winch and mine winch |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106698226A (en) * | 2016-12-07 | 2017-05-24 | 安徽理工大学 | Underground auxiliary transportation inclined shaft dotting signal centralized control system and control method |
| CN108414847A (en) * | 2018-01-05 | 2018-08-17 | 杭州鸿泉物联网技术股份有限公司 | A kind of vehicle roof state identification method and device |
| CN108439119A (en) * | 2018-03-16 | 2018-08-24 | 淮南矿业(集团)有限责任公司 | A kind of control method and device of doube bridge mining elevator |
| CN108661700A (en) * | 2018-04-28 | 2018-10-16 | 淮北矿业（集团）有限责任公司 | A kind of skip bucket canopy tank signal protection device |
| CN110908328A (en) * | 2019-12-11 | 2020-03-24 | 河南永华能源有限公司 | Main well residual coal alarm locking transformation system and method |
| CN115321401A (en) * | 2022-07-26 | 2022-11-11 | 凯盛重工有限公司 | Intelligent endless rope winch electric control system |
-
2012
- 2012-04-20 CN CN 201220172146 patent/CN202575827U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698226A (en) * | 2016-12-07 | 2017-05-24 | 安徽理工大学 | Underground auxiliary transportation inclined shaft dotting signal centralized control system and control method |
| CN108414847A (en) * | 2018-01-05 | 2018-08-17 | 杭州鸿泉物联网技术股份有限公司 | A kind of vehicle roof state identification method and device |
| CN108439119A (en) * | 2018-03-16 | 2018-08-24 | 淮南矿业(集团)有限责任公司 | A kind of control method and device of doube bridge mining elevator |
| CN108439119B (en) * | 2018-03-16 | 2019-08-13 | 淮南矿业(集团)有限责任公司 | A kind of control method and device of doube bridge mining elevator |
| CN108661700A (en) * | 2018-04-28 | 2018-10-16 | 淮北矿业（集团）有限责任公司 | A kind of skip bucket canopy tank signal protection device |
| CN110908328A (en) * | 2019-12-11 | 2020-03-24 | 河南永华能源有限公司 | Main well residual coal alarm locking transformation system and method |
| CN115321401A (en) * | 2022-07-26 | 2022-11-11 | 凯盛重工有限公司 | Intelligent endless rope winch electric control system |
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