CN103512590A - Mining hydraulic support state inspection device and measuring method - Google Patents
Mining hydraulic support state inspection device and measuring method Download PDFInfo
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- CN103512590A CN103512590A CN201310451563.8A CN201310451563A CN103512590A CN 103512590 A CN103512590 A CN 103512590A CN 201310451563 A CN201310451563 A CN 201310451563A CN 103512590 A CN103512590 A CN 103512590A
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Abstract
Provided are a mining hydraulic support state inspection device and measuring method. The device comprises a first excitation body, a second excitation body and a sensor. The sensor comprises a first magnetism sensor, a second magnetism sensor and a voltage operation circuit. The first excitation body is arranged on a hydraulic support faceguard. The second excitation body is arranged on a hydraulic support telescopic beam. The sensor is arranged on the lower end face of a hydraulic support top beam. The voltage operation circuit is respectively connected with the first magnetism sensor and the second magnetism sensor. The first magnetism sensor detects the magnetic field intensity of the first excitation body and obtains first voltages. The second magnetism sensor detects the magnetic field intensity of the second excitation body and obtains second voltages. The voltage operation circuit computes corresponding voltage values of a complete withdrawing state and an incomplete withdrawing state of the hydraulic support faceguard and a complete withdrawing state and an incomplete withdrawing state of the telescopic beam according to the first voltages and the second voltages. According to the mining hydraulic support state inspection device and measuring method, the withdrawing states of the hydraulic support faceguard and the telescopic beam are detected at the same time, and device cost is lowered.
Description
Technical field
The present invention relates to mining equipment detection technique field, particularly relate to mine hydraulic bracket condition checkout gear and measuring method.
Background technology
The arrival of new technology revolution, the world starts to enter the information age.In utilizing the process of information, what first will solve will obtain information accurately and reliably exactly, and pick-up unit is main path and the means of obtaining information in nature and production field.Such as, pick-up unit is used in the detection of colliery digging to hydraulic support state.At present, channel of coal mining working surface environment is severe, labour intensity is large, location status automatic identification function for hydraulic support requires more and more higher, and detect for the withdrawal of side protection plate of hydraulic support and extensible canopy position, to realize the critical function that getting working face is unmanned, robotization is mined, avoid coalcutter through mutual interference out-of-date and side protection plate of hydraulic support and extensible canopy, realized the coordinated operation of hydraulic support and coalcutter.As shown in Figure 1, hydraulic support 110 comprises face guard 111, extensible canopy 112 and back timber 113.
In conventional art, for detection of the pick-up unit of the position retracted state of side protection plate of hydraulic support and support extensible canopy (retracted state and not exclusively retracted state completely), be a kind of inductive switch, for detection of external metallization, realize position retracted state and detect.Traditional detection device can only be independent detection a kind of position retracted state wherein.But an equipment cannot be realized the position retracted state that simultaneously detects the face guard of hydraulic support and the extensible canopy of hydraulic support.In the time need to detecting the position retracted state of side protection plate of hydraulic support and extensible canopy simultaneously, two pick-up units need to be installed, when having increased system cost, also increased the installation difficulty of equipment, be unfavorable for the safe handling of product under coal mine.
Summary of the invention
Based on this, be necessary cannot realize for an equipment problem of the position retracted state that simultaneously detects the face guard of hydraulic support and the extensible canopy of hydraulic support, a kind of mine hydraulic bracket condition checkout gear and measuring method are provided.
A condition checkout gear, comprising: the first excitation body, the second excitation body, sensor, and described sensor comprises the first magnetic inductor, the second magnetic inductor, voltage operational circuit;
Described the first excitation body is located on side protection plate of hydraulic support, and the second excitation body is located on Telescopic beam of hydraulic bracket, and described sensor is located at hydraulic support top beam lower surface;
Described voltage operational circuit connects respectively the first magnetic inductor, the second magnetic inductor;
Described the first magnetic inductor detects the magnetic field intensity of the first excitation body, obtain the first voltage, described the second magnetic inductor detects the magnetic field intensity of the second excitation body, obtain second voltage, described voltage operational circuit calculates the complete retracted state of side protection plate of hydraulic support and not exclusively retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and not exclusively magnitude of voltage corresponding to retracted state according to the first voltage and second voltage.
, comprise step:
By the first magnetic inductor, detect the magnetic field intensity of the first excitation body, obtain the first voltage, by the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain second voltage;
According to the first voltage and second voltage, calculate the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state;
According to described magnitude of voltage, determine the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete retracted state.
Above-mentioned mine hydraulic bracket condition checkout gear and measuring method, by supporting the use excitation body, magnetic inductor and voltage operational circuit, two excitation bodies are arranged on respectively on the face guard and extensible canopy of hydraulic support, two magnetic inductors are arranged on hydraulic support top beam lower surface.Owing to there being two magnetic inductors, can realize 2 tunnel magnetic induction directions and detect, for detection of the magnetic field intensity of side protection plate of hydraulic support and extensible canopy, export different voltage.Voltage operational circuit is converted to corresponding preset value by the first voltage and second voltage, and calculates the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state.Along with whether regain side protection plate of hydraulic support and support extensible canopy position, voltage operational circuit is exported different magnitudes of voltage, with this, detects the location status of side protection plate of hydraulic support and extensible canopy.The present invention can realize and detect side protection plate of hydraulic support and extensible canopy retracted state simultaneously, reduces installation cost simultaneously, is convenient to install.
Accompanying drawing explanation
Fig. 1 is hydraulic rack structure schematic diagram;
Fig. 2 is the structural representation of mine hydraulic bracket condition checkout gear embodiment of the present invention;
Fig. 3 is the first logic processing circuit structural representation in the embodiment of the present invention;
Fig. 4 is the second logic processing circuit structural representation in the embodiment of the present invention;
Fig. 5 be the first voltage conversion circuit in the embodiment of the present invention, second voltage change-over circuit respectively with voltage operational circuit connection diagram;
Fig. 6 be in application example of the present invention the first magnetic inductor and the second magnetic inductor at the position view of circuit board.
Embodiment
Each embodiment for mine hydraulic bracket condition checkout gear of the present invention and measuring method is described in detail below.
As shown in Figure 2, structural representation for mine hydraulic bracket condition checkout gear embodiment of the present invention, comprise: the first excitation body 210, the second excitation body 220, sensor 230, sensor 230 comprises the first magnetic inductor 231, the second magnetic inductor 232, voltage operational circuit 233.The first excitation body is located on side protection plate of hydraulic support, and the second excitation body is located on Telescopic beam of hydraulic bracket, and sensor is located at hydraulic support top beam lower surface, and voltage operational circuit connects respectively the first magnetic inductor, the second magnetic inductor.The first magnetic inductor detects the magnetic field intensity of the first excitation body, obtains the first voltage.The second magnetic inductor detects the magnetic field intensity of the second excitation body, obtains second voltage.Voltage operational circuit calculates the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state according to the first voltage and second voltage.
Wherein, the position that the first magnetic inductor and the second magnetic inductor are arranged on hydraulic support top beam lower surface is the first excitation body can be detected respectively and the second excitation body is as the criterion.Such as, for fear of influencing each other of the first excitation body and the second excitation body, can the first magnetic inductor and the second magnetic inductor be set to only the magnetic direction along magnetic inductor end face transverse cuts be responded, such as by the magnetic induction part horizontally set of the first magnetic inductor, when side protection plate of hydraulic support is regained, the magnetic induction part of the first magnetic inductor is just in time cut in the magnetic field that the excitation body on face guard produces.The magnetic induction part of the second magnetic inductor is longitudinally arranged, and when Telescopic beam of hydraulic bracket is regained completely, the magnetic induction part of the second magnetic inductor is just in time cut in the magnetic field that the excitation body on extensible canopy produces.Magnitude of voltage refers to the value that can reflect face guard and extensible canopy retracted state, can be a value, reflects the retracted state of face guard and the retracted state of extensible canopy from a value.Also can be two values, represent respectively the retracted state of face guard and the retracted state of extensible canopy.Voltage operational circuit the first voltage and second voltage can be added or subtract each other or other etc. computing circuit, calculate magnitude of voltage corresponding to mine hydraulic bracket state.User can obtain hydraulic support state according to corresponding magnitude of voltage, i.e. the retracted state of face guard and extensible canopy.
Therein in an embodiment, when a magnetic induction part being set in a magnetic inductor, when magnetic induction part damage causes situation about cannot work, in magnetic inductor, adopt Redundancy Design, that is: the first magnetic inductor comprises a plurality of magnetic induction parts, the second magnetic inductor comprises a plurality of magnetic induction parts, and each magnetic induction part is connected with voltage operational circuit respectively.Therefore, even while having one or more magnetic induction parts to damage in magnetic inductor, can not affect last judged result yet.Each magnetic induction part is connected with voltage operational circuit respectively, and voltage operational circuit can directly judge according to the magnitude of voltage of each magnetic induction part output in the first magnetic inductor whether face guard is regained.Such as, as long as wherein two magnitudes of voltage meet the demands, face guard is all judged as withdrawal.In like manner, voltage operational circuit can directly judge by the magnitude of voltage of each magnetic induction part output in the second magnetic inductor whether extensible canopy is regained.
Therein in an embodiment, at the first magnetic inductor, comprise a plurality of magnetic induction parts, the second magnetic inductor comprises that under a plurality of magnetic induction part conditions, the first magnetic inductor also comprises the first logic processing circuit, and the second magnetic inductor also comprises the second logic processing circuit.Each magnetic induction part of the first magnetic inductor is connected with the first logic processing circuit respectively, and each magnetic induction part of the second magnetic inductor is connected with the second logic processing circuit respectively, and the first logical circuit is connected with voltage operational circuit respectively with the second logical circuit.The first logic processing circuit carries out logical operation by the voltage of each magnetic induction part output of the first magnetic inductor and obtains the first voltage.The second logic processing circuit carries out logical operation by the voltage of each magnetic induction part output of the second magnetic inductor and obtains second voltage.Wherein, the voltage of the voltage of magnetic induction part output or logic processing circuit output, wherein a kind of form of expression can be level.
The present embodiment is in the first magnetic inductor and the second magnetic inductor, first the voltage that magnetic induction part produces is separately processed, and obtains the first voltage and second voltage.Wherein can carry out different judgements by logic gate.Reduced like this workload of voltage operational circuit.Because the first magnetic inductor is equivalent to a switch, the magnitude of voltage of output is two fixed values, voltage corresponding to incomplete retracted state can also be made as to high level, and the voltage that complete retracted state is corresponding is made as low level.
In another embodiment, can there is no logic processing circuit, the magnetic induction part of the first magnetic inductor detects the magnetic field intensity of the first excitation body, directly obtains the first voltage, the magnetic induction part of the second magnetic inductor detects the magnetic field intensity of the second excitation body, directly obtains second voltage.Voltage operational circuit calculates the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state according to the first voltage and second voltage.
Therein in an embodiment, the first logic processing circuit comprises the first NOR circuit and first or circuit, and the second logic processing circuit comprises the second NOR circuit and second or circuit;
Two magnetic induction parts adjacent in each magnetic induction part of the first magnetic inductor are connected with one of them rejection gate in the first NOR circuit, the first NOR circuit, first or circuit, voltage operational circuit connect successively,
Two magnetic induction parts adjacent in each magnetic induction part of the second magnetic inductor are connected with one of them rejection gate in the second NOR circuit, the second NOR circuit, second or circuit, voltage operational circuit connect successively,
Wherein, the voltage of each magnetic induction part output of the first magnetic inductor is low level or high level, and the voltage of each magnetic induction part output of the second magnetic inductor is low level or high level.
When regain the position of support face guard, the level signal of the first magnetic inductor output is low level " 0 ".If do not regain, the level signal of the first magnetic inductor output is high level " 1 ".When regain the position of extensible canopy, the level signal of the second magnetic inductor output is low level " 0 ".If do not regain, the level signal of the second magnetic inductor output is high level " 1 ".Be the position of support face guard and extensible canopy while regaining, the first NOR circuit/the second NOR circuit output high level " 1 ".If do not regain, the first NOR circuit/the second NOR circuit output low level " 0 ".First or circuit by the level of the first NOR circuit output or after processing, as long as have one in the first NOR circuit for high level, corresponding first or circuit output high level " 1 ", represent that the position of support face guard is regained.Voltage operational circuit can be converted into the magnitude of voltage that face guard retracted state is corresponding.In like manner, second or circuit by the level of the second NOR circuit output or after processing, as long as have one in the second NOR circuit for high level, corresponding second or circuit output high level " 1 ", represent that the position of support extensible canopy is regained.Voltage operational circuit can be converted into the magnitude of voltage that extensible canopy retracted state is corresponding.In this way, magnetic induction part in magnetic inductor is all normal or while only having one to damage, judged result is correctly.
In another embodiment, as shown in Figure 3 and Figure 4, the first logic processing circuit 310 comprises the 3rd or circuit and the first NAND circuit, and the second logic processing circuit 320 comprises the 4th or circuit and the second NAND circuit,
In each magnetic induction part of the first magnetic inductor adjacent two magnetic induction parts with the 3rd or circuit in one of them or door be connected, the 3rd or circuit, the first NAND circuit, voltage operational circuit connect successively,
In each magnetic induction part of the second magnetic inductor adjacent two magnetic induction parts with the 4th or circuit in one of them or door be connected, the 4th or circuit, the second NAND circuit, voltage operational circuit connect successively,
Wherein, the voltage of each magnetic induction part output of the first magnetic inductor is low level or high level, and the voltage of each magnetic induction part output of the second magnetic inductor is low level or high level.
Certainly, can not be also adjacent two magnetic induction part AND OR circuit or door connect, can be between two magnetic induction part and circuit in or be connected.Generally, the level of adjacent two magnetic induction parts output is carried out or process more meaningfully, testing result is more accurate.
In Fig. 3, P1, P2, P3, P4 are the voltage of four magnetic induction part outputs in the first magnetic inductor.D1 is the first voltage after logical operation.In Fig. 4, P5, P6, P7, P8 are the voltage of four magnetic induction part outputs in the second magnetic inductor.D2 is the second voltage after logical operation.
The present embodiment is in utilization or door, as long as the level of two inputs is low level, or a door Output rusults is just low level.Utilize in Sheffer stroke gate, as long as there is one to be input as low level, Output rusults is high level.Due to the characteristic of magnetic induction part, when the magnetic field intensity detecting when magnetic induction part is greater than predetermined threshold value, output low level, when the magnetic field intensity detecting when magnetic induction part is less than or equal to predetermined threshold value, output high level.Wherein, predetermined threshold value can be set as required.Therefore,, when regain the position of support face guard, the level signal of the first magnetic inductor output is low level " 0 ".If do not regain, the level signal of the first magnetic inductor output is high level " 1 ".When regain the position of extensible canopy, the level signal of the second magnetic inductor output is low level " 0 ".If do not regain, the level signal of the second magnetic inductor output is high level " 1 ".
Therefore, the level of adjacent two magnetic induction parts output between two or after processing in each magnetic induction part of the first magnetic inductor, as long as while having two low levels, the 3rd or circuit just understand output low level.Then by the 3rd or each level of circuit output carry out with non-processing after, as long as the 3rd or circuit output in while having a low level, the first NAND circuit will be exported high level.Now the first NAND circuit output high level represents that face guard has withdrawal, if during the first NAND circuit output low level, represents that face guard do not regain.The 4th or circuit and the second NAND circuit in like manner can obtain.This method can realize, and magnetic induction part in magnetic inductor is all normal or while only having one to damage, judged result is correctly.
Therein in an embodiment, voltage operational circuit comprises the first voltage conversion circuit, second voltage change-over circuit and computing circuit, the first voltage conversion circuit is the first predeterminated voltage value by the first voltage transitions receiving, second voltage change-over circuit is converted to the second predeterminated voltage value by the second voltage of reception, and computing circuit is merged into the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state by the first predeterminated voltage value and the second predeterminated voltage value.The first voltage conversion circuit is connected with the first logic processing circuit of the first magnetic inductor, and second voltage change-over circuit is connected with the second logic processing circuit of the second magnetic inductor.For example, as shown in Figure 5, voltage operational circuit 510 comprises the first voltage conversion circuit, second voltage change-over circuit and computing circuit.The first voltage conversion circuit comprises and connects successively the first field effect transistor and the first voltage follower.Second voltage change-over circuit comprises and connects successively the second field effect transistor and second voltage follower.Field effect transistor and connected resistance thereof are that voltage follower is for making voltage signal follow output for the level signal of logical circuit output is converted to default magnitude of voltage, and the first voltage follower is connected with computing circuit respectively with second voltage follower.
In an embodiment, also comprise the suggestion device being connected with sensor therein, suggestion device is according to magnitude of voltage prompting side protection plate of hydraulic support retracted state and Telescopic beam of hydraulic bracket retracted state.Suggestion device can be display device, and relevant voltage value is shown, and user judges side protection plate of hydraulic support position retracted state and Telescopic beam of hydraulic bracket position retracted state according to magnitude of voltage.Display device can also show side protection plate of hydraulic support position retracted state and Telescopic beam of hydraulic bracket position retracted state according to magnitude of voltage and default magnitude of voltage and retracted state relation table.Can also be by traffic light prompting side protection plate of hydraulic support position retracted state and Telescopic beam of hydraulic bracket position retracted state etc.Certainly, in order to connect suggestion device, sensor also needs to be provided with respective communication interface etc.Communication interface is set and can adopts customary means, do not repeat them here.
In an embodiment, sensor is connected with the controller of hydraulic support therein, and sensor is sent to controller by magnitude of voltage.Wherein, the voltage operational circuit by sensor is sent to controller by magnitude of voltage.Controller can be recognized in real time according to the magnitude of voltage receiving the retracted state of hydraulic pressure face guard and extensible canopy, thereby control the operation of hydraulic support, and steering order is sent to integrated control platform, integrated control platform sends instruction and controls coalcutter operation, thereby avoided coalcutter through mutual interference out-of-date and support face guard and extensible canopy, realized the coordinated operation of hydraulic support and coalcutter.
The present invention also provides a kind of measuring method, comprises step:
By the first magnetic inductor, detect the magnetic field intensity of the first excitation body, obtain the first voltage, by the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain second voltage;
According to the first voltage and second voltage, calculate the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state;
According to magnitude of voltage, determine the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete retracted state.
In an embodiment, by the first magnetic inductor, detect the magnetic field intensity of the first excitation body therein, obtain the first voltage, by the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain second voltage step, comprising:
By each magnetic induction part of the first magnetic inductor, detect the magnetic field intensity of the first excitation body, obtain respectively the first level, each first level is carried out between two or processed, this result is carried out and non-processing, obtain the first voltage, wherein, the first magnetic inductor comprises a plurality of magnetic induction parts;
By each magnetic induction part of the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain respectively second electrical level, each second electrical level is carried out between two or process, this result is carried out and non-processing, obtain second voltage, wherein, the second magnetic inductor comprises a plurality of magnetic induction parts.
Wherein, the first level can comprise high level and low level, and second electrical level can comprise high level and low level.First voltage here and second voltage can be the forms of level.
In a concrete application, comprising: the first excitation body, the second excitation body, sensor, wherein, sensor comprises the first magnetic inductor, the second magnetic inductor, voltage operational circuit.2 excitation bodies are arranged on the face guard and extensible canopy of hydraulic support.Installation of sensors is on the back timber of hydraulic support.Sensor comprises front and side, and sensor front is the opposite of sensor and hydraulic support top beam joint face, and the first side of sensor is sensor and the hithermost side of extensible canopy.Sensor frontal is for detection of the position retracted state of side protection plate of hydraulic support, and sensor the first side surface direction is for detection of Telescopic beam of hydraulic bracket Shang position retracted state.And whether regain completely the face guard of hydraulic support and the position of extensible canopy, can have influence on the magnetic field intensity on sensor Zheng Ce two sides, thereby have influence on the signal output of sensor.
As shown in Figure 6, sensor 600 fronts are provided with the first magnetic inductor 610, and magnetic inductor comprises four magnetic induction parts, and sensor front is provided with the second magnetic inductor 620, and magnetic inductor comprises four magnetic induction parts.The magnetic inductor of sensor is subject to the impact of Surface field intensity, produces 8 level, exports 8 level signal P1～P8.
Logic processing circuit employing or circuit and NAND circuit, level signal P1～P4 that two magnetic inductors are exported respectively, P5～P8 carry out logical OR between two to be processed, and can export 8 level signal OR12, OR23, OR34, OR24, OR56, OR67, OR78, OR68.When if does not regain the position of the face guard of hydraulic support and extensible canopy, the level signal P1～P4 of magnetic induction part output, P5～P8 exports high level " 1 ", and 8 level signals that be attached thereto or circuit output also can be exported high level " 1.If regain, or 8 whole output low levels of level signal " 0 " of circuit output.
The NAND circuit of the first logic processing circuit by or 4 level signals of circuit output carry out and non-processing, and generate level signal D1.The NAND circuit of the second logic processing circuit by or 4 level signals of circuit output carry out and non-processing, and generate level signal D2.As
when if regain support face guard and extensible canopy position, level signal D1, the D2 of logic processing circuit output, output high level " 1 "; If do not regain, the level signal D1, the D2 that export, output low level " 0 ".
The first voltage operational circuit and second voltage computing circuit adopt respectively voltage conversion unit by 2 level signal D1, D2 of logic processing circuit output, be converted to respectively magnitude of voltage Va, Vb, and can be according to the difference of incoming level signal, export different magnitudes of voltage, such as working as D1=" 1 ", Va=V1; During D1=" 0 ", Va=V2; As D2=" 1 ", Vb=V3; D2=" 0 ", Vb=V4.When if there is withdrawal support face guard position, the level signal D1=" 1 " of the first logic processing circuit output, the first voltage conversion circuit output voltage values Va=V1, if does not regain face guard position, the level signal D1=" 0 " of the first logic processing circuit output, the first voltage conversion circuit output voltage values Va=V2; In like manner, when if there is withdrawal support extensible canopy position, the level signal D2=" 1 " of the second logic processing circuit output, second voltage change-over circuit output voltage values Vb=V3, if does not regain extensible canopy position, the level signal D2=" 0 " of the second logic processing circuit output, second voltage change-over circuit output voltage values Vb=V4.Adopt again computing circuit that 2 magnitudes of voltage after the first voltage conversion circuit and the conversion of second voltage change-over circuit are carried out to calculation process, and export final magnitude of voltage Vo, such as Vo=Va+Vb.While having withdrawal as the face guard when hydraulic support and extensible canopy position, the magnitude of voltage of final output is Vo=V1+V3; If there is withdrawal side protection plate of hydraulic support position, and support extensible canopy position is not when regain, and the magnitude of voltage of final output is Vo=V1+V4; If does not regain side protection plate of hydraulic support position, and support extensible canopy position is while having withdrawal, and the magnitude of voltage of final output is Vo=V2+V3; When if does not all regain side protection plate of hydraulic support and extensible canopy position, the magnitude of voltage of final output is Vo=V2+V4.
This mine hydraulic bracket condition checkout gear is connected with hydraulic bracket controller system, the voltage signal of mine hydraulic bracket condition checkout gear output is given to hydraulic bracket controller system, make hydraulic bracket controller the retracted state of support face guard and extensible canopy position can be detected in real time, report and submit to integrated control platform, avoid coalcutter through mutual interference out-of-date and side protection plate of hydraulic support and extensible canopy, realized the coordinated operation of hydraulic support and coalcutter.
Because mine hydraulic bracket condition checkout gear has Redundancy Design effect, even if there is 1 magnetic induction part to damage in magnetic induction unit, every road, also can not affect the performance output of sensor.The present invention program, compares with equal performance product, can greatly reduce function system cost.Can change flexibly according to demand machinery and electric parameter, meet different customer demands.There is the function that simultaneously detects two kinds of hydraulic support position retracted state identifications.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a mine hydraulic bracket condition checkout gear, is characterized in that, comprising: the first excitation body, the second excitation body, sensor, and described sensor comprises the first magnetic inductor, the second magnetic inductor, voltage operational circuit;
Described the first excitation body is located on side protection plate of hydraulic support, and the second excitation body is located on Telescopic beam of hydraulic bracket, and described sensor is located at hydraulic support top beam lower surface;
Described voltage operational circuit connects respectively the first magnetic inductor, the second magnetic inductor;
Described the first magnetic inductor detects the magnetic field intensity of the first excitation body, obtain the first voltage, described the second magnetic inductor detects the magnetic field intensity of the second excitation body, obtain second voltage, described voltage operational circuit calculates the complete retracted state of side protection plate of hydraulic support and not exclusively retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and not exclusively magnitude of voltage corresponding to retracted state according to the first voltage and second voltage.
2. mine hydraulic bracket condition checkout gear according to claim 1, it is characterized in that, described the first magnetic inductor comprises a plurality of magnetic induction parts, and described the second magnetic inductor comprises a plurality of magnetic induction parts, and each magnetic induction part is connected with described voltage operational circuit respectively.
3. mine hydraulic bracket condition checkout gear according to claim 2, is characterized in that, the first magnetic inductor also comprises the first logic processing circuit, and the second magnetic inductor also comprises the second logic processing circuit;
Each magnetic induction part of the first magnetic inductor is connected with described the first logic processing circuit respectively, each magnetic induction part of the second magnetic inductor is connected with described the second logic processing circuit respectively, and described the first logical circuit is connected with described voltage operational circuit respectively with the second logical circuit;
Described the first logic processing circuit carries out logical operation by the voltage of each magnetic induction part output of the first magnetic inductor and obtains the first voltage;
Described the second logic processing circuit carries out logical operation by the voltage of each magnetic induction part output of the second magnetic inductor and obtains second voltage.
4. mine hydraulic bracket condition checkout gear according to claim 3, is characterized in that, described the first logic processing circuit comprises the first NOR circuit and first or circuit, and the second logic processing circuit comprises the second NOR circuit and second or circuit;
Two magnetic induction parts adjacent in each magnetic induction part of described the first magnetic inductor are connected with one of them rejection gate in the first NOR circuit, described the first NOR circuit, described first or circuit, described voltage operational circuit connect successively,
Two magnetic induction parts adjacent in each magnetic induction part of described the second magnetic inductor are connected with one of them rejection gate in the second NOR circuit, described the second NOR circuit, described second or circuit, described voltage operational circuit connect successively,
Wherein, the voltage of each magnetic induction part output of described the first magnetic inductor is low level or high level, and the voltage of each magnetic induction part output of the second magnetic inductor is low level or high level.
5. mine hydraulic bracket condition checkout gear according to claim 3, is characterized in that, described the first logic processing circuit comprises the 3rd or circuit and the first NAND circuit, and described the second logic processing circuit comprises the 4th or circuit and the second NAND circuit,
In each magnetic induction part of described the first magnetic inductor adjacent two magnetic induction parts with the 3rd or circuit in one of them or door be connected, the described the 3rd or circuit, described the first NAND circuit, described voltage operational circuit connect successively,
In each magnetic induction part of described the second magnetic inductor adjacent two magnetic induction parts with the 4th or circuit in one of them or door be connected, the described the 4th or circuit, described the second NAND circuit, described voltage operational circuit connect successively,
Wherein, the voltage of each magnetic induction part output of described the first magnetic inductor is low level or high level, and the voltage of each magnetic induction part output of the second magnetic inductor is low level or high level.
6. according to the mine hydraulic bracket condition checkout gear described in claim 4 or 5, it is characterized in that, described voltage operational circuit comprises the first voltage conversion circuit, second voltage change-over circuit and computing circuit;
The first voltage conversion circuit is the first predeterminated voltage value by the first voltage transitions receiving, second voltage change-over circuit is converted to the second predeterminated voltage value by the second voltage of reception, and described computing circuit is merged into the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state by the first predeterminated voltage value and the second predeterminated voltage value.
7. according to the mine hydraulic bracket condition checkout gear described in claim 1 to 5 any one, it is characterized in that, also comprise the suggestion device being connected with described sensor;
Described suggestion device is pointed out described side protection plate of hydraulic support retracted state and Telescopic beam of hydraulic bracket retracted state according to magnitude of voltage.
8. according to the mine hydraulic bracket condition checkout gear described in claim 1 to 5 any one, it is characterized in that, described sensor is connected with the controller of described hydraulic support, and described sensor is sent to described controller by described magnitude of voltage.
9. the measuring method to the mine hydraulic bracket condition checkout gear of claim 8 any one based on claim 1, is characterized in that, comprises step:
By the first magnetic inductor, detect the magnetic field intensity of the first excitation body, obtain the first voltage, by the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain second voltage;
According to the first voltage and second voltage, calculate the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete magnitude of voltage corresponding to retracted state;
According to described magnitude of voltage, determine the complete retracted state of side protection plate of hydraulic support and incomplete retracted state and the complete retracted state of Telescopic beam of hydraulic bracket and incomplete retracted state.
10. measuring method according to claim 9, is characterized in that, describedly passes through the magnetic field intensity that the first magnetic inductor detects the first excitation body, obtain the first voltage, by the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain second voltage step, comprising:
By each magnetic induction part of the first magnetic inductor, detect the magnetic field intensity of the first excitation body, obtain respectively the first level, each first level is carried out between two or processed, this result is carried out and non-processing, obtain the first voltage, wherein, the first magnetic inductor comprises a plurality of magnetic induction parts;
By each magnetic induction part of the second magnetic inductor, detect the magnetic field intensity of the second excitation body, obtain respectively second electrical level, each second electrical level is carried out between two or process, this result is carried out and non-processing, obtain second voltage, wherein, the second magnetic inductor comprises a plurality of magnetic induction parts.
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