CN207111085U - A kind of loop control system of development machine eight - Google Patents
A kind of loop control system of development machine eight Download PDFInfo
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- CN207111085U CN207111085U CN201721033171.XU CN201721033171U CN207111085U CN 207111085 U CN207111085 U CN 207111085U CN 201721033171 U CN201721033171 U CN 201721033171U CN 207111085 U CN207111085 U CN 207111085U
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Abstract
The utility model discloses a kind of loop control system of development machine eight, belongs to driving electrical-mechanical system field.The loop control system of a kind of development machine eight of the present utility model, including electric cabinet, electric cabinet is interior to be provided with control transformer, intrinsic safety electric source and PLC and module, and control transformer passes through intrinsic safety electric source and connects PLC and module；External equipment one is provided with outside electric cabinet, the external equipment one includes control box, sensor and pressure transmitter, and control box, sensor and pressure transmitter are connected with PLC and module respectively；Control box includes casing, switch module and display module, and switch module is by Free agreement and PLC and module communication, and display module is by MPI communications protocol and PLC and module communication；External equipment two is additionally provided with outside electric cabinet, the external equipment two includes dedusting fan, jumbolter, standby motor one, second-class eight motors of standby motor, and above-mentioned motor is also connected with PLC and module respectively.Eight loop control system of the present utility model, drivage efficiency is high, safe.
Description
Technical field
A kind of development machine control system is the utility model is related to, more specifically to a kind of circuit controls of development machine eight
System.
Background technology
With the continuous improvement of the level of economic development and people's quality of life, the power demand of enterprises and institutions and resident
Increase therewith, and the current main generation mode in China or coal thermal power generation, therefore the demand of coal is consequently increased.Coal
Ore deposit ensures that the key technology of high and stable yields is exactly extraction technique, and advanced efficient mechanical drivage technology is tunnelling technology
Developing direction, and coal mining realizes the necessary condition of high-yield and high-efficiency.Production of the development machine as current mechanical drivage technology
Thing, whether advanced its is largely effects on coal mining amount, and the control system that advanced development machine has necessarily be unable to do without, and is tunneling
In machine control system, electric cabinet and control box are essential parts.At present, domestic all kinds of development machines are matching used
Development machine largely uses four loops with electric cabinet, i.e. the power supply of Oil pump electrical machinery, cut high/low-speed motor and two fortune motors is returned
Road, and most of electric cabinet uses the form of twin voltage, also has small part Corporation R ＆ D to go out five loops, the i.e. basis in four loops
Upper increase dedusting fan or jumbolter loop, but above electric cabinet can not walk development machine, cutting arm lifting and revolution,
Rear support lifting, shovel board lifting, coal petrography cutting, dedusting, suspension roof support are rolled into one, i.e., can not be by a development machine electric cabinet
Control operation realizes the various actions of tunnelling, meanwhile, increase dedusting, anchor pole motor current supply circuit need individually laying electricity
Cable, excavation cost is improved, extend the tunnelling cycle.In addition, at present domestic development machine all do not set up with electric cabinet it is standby
Use electric motor loop.In tunneling process, if certain loop can not start, and when field technician can not judge reason,
It can only then shut down and reprocess, leverage driving progress, extend the driving cycle, reduce production efficiency.In addition, development machine is used
Illuminating lamp generally upon power-up of the system Chang Liang, but in actual use, staff often because illuminating lamp light too
The operating mode in face or tunnel can not be observed by force, so as to cause the accident, influences driving process.
In addition, in tunneling process, cutting arm internal bearings can produce amount of heat, inner gear of the gear box oil temperature also with
Rise, the viscosity of gear oil also reduces, easily causes seepage, cause cylinder interior pressure inadequate, influence manufacturing schedule therewith.When
During Bearing Temperature, bearing is easily damaged, and causes maintenance cost high, replacing construction length.
Meanwhile the defects of control box that development machine uses is had to a certain degree more at present, as good in interactive function is poor, real-time
It is not strong etc., in order to meet market needs, development machine need a kind of cost is low, reliability is high, it is real-time, intelligent and use,
Safeguard shirtsleeve operation case.
The content of the invention
1. utility model technical problems to be solved
For above mentioned problem existing for development machine control system of the prior art, the utility model provides a kind of development machine
Eight loop control systems, the control system are provided with eight loops, it is possible to increase drivage efficiency, ensure driving progress, and the control system
System reduces the damage of key element, reduces the machine maintenance time, ensure that manufacturing schedule, meanwhile, the control system is controllable
The independent break-make of illuminating lamp before and after system, avoid because illuminating lamp light can not observe by force very much the operating mode of face or tunnel and caused by
Accident, it is safe, in addition, the control box reliability of the control system is high, real-time, it is economical and practical.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the utility model is：
The loop control system of a kind of development machine eight of the present utility model, including electric cabinet, described electric cabinet is interior to be provided with control
Transformer, intrinsic safety electric source and PLC processed and module, described control transformer connect PLC and module by intrinsic safety electric source；Described
External equipment one is provided with outside electric cabinet, described external equipment one includes control box, sensor and pressure transmitter, described
Control box, sensor and pressure transmitter are connected with PLC and module respectively, for PLC and module input signal；Described behaviour
Making case includes casing, switch module and display module, and described switch module and display module are arranged on casing, and described opens
Module is closed to be sent to by RS-485 interfaces with the signal that PLC and module communication and switch module are sent by Free agreement
PLC and module, described display module is using MPI communications protocol and PLC and module communication, to show that the operation of development machine is joined
Number state；External equipment two is additionally provided with outside described electric cabinet, described external equipment two includes Oil pump electrical machinery, cuts high electricity
Machine, section low motor, two fortune motors, dedusting fan, jumbolter, standby motor one and standby motor two, described Oil pump electrical machinery,
Cut high motor, cut low motor, two fortune motors, dedusting fan, jumbolter, standby motor one and standby motor two respectively with PLC
And module is connected, for receiving and performing PLC and module instruction, and to PLC and the respective working state signal of module feedback.
Further, described switch module includes 12 switching control keys, and the switching control key described in 12 includes
10 double-throw self-resetting switch, 1 singly throw self-resetting switch and 1 self-locking reset switch.
Further, the casing of described control box is made up of stainless steel material.
Further, described external equipment two also includes front lamp and rear lighting lamp, described front lamp and
Rear lighting lamp is connected with PLC and module respectively.
Further, described front lamp is connected by the first auxiliary reclay with PLC and module, described rear photograph
Bright lamp is connected by the second auxiliary reclay with PLC and module.
Further, described sensor includes the first oil temperature sensor and the second oil temperature sensor, and described first
Oil temperature sensor is connected by the first security isolation grid with PLC and module, and the second described oil temperature sensor passes through the second safety
Isolated gate is connected with PLC and module.
3. beneficial effect
Using technical scheme provided by the utility model, compared with existing known technology, have the advantages that：
(1) loop control system of a kind of development machine eight of the present utility model, including electric cabinet, the electric cabinet is interior to be provided with eight times
Road, the electric cabinet not only oil supply pump motor, section high motor, section low motor, two fortune motors power supplies, can also give dedusting fan and anchor pole
Rig is powered, without individually to dedusting fan and jumbolter wiring power supply, improving drivage efficiency.
(2) loop control system of a kind of development machine eight of the present utility model, the control system is interior to be provided with control box, the operation
Case is provided with switch module and display module, and switch module is used by Free agreement and PLC and module communication, display module
MPI communications protocol and PLC and module communication, stable performance, reliability is high, and real-time, interactive capability is strong, meanwhile, should
Control box is simple in construction, low cost, easy to operate.
(3) loop control system of a kind of development machine eight of the present utility model, operation box body are made up of stainless steel material, case
Body has good corrosion resistance, effectively extends the service life of control box.
(4) loop control system of a kind of development machine eight of the present utility model, front and rear illuminating lamp can independent break-make, avoid because
Illuminating lamp light can not observe by force very much the operating mode of face or tunnel and cause the accident that security is higher.
(5) loop control system of a kind of development machine eight of the present utility model, can monitor oil temperature oil level in real time, when oil temperature oil
When position is exceeded, system autostop, reduces the damage of key element, reduce maintenance cost.
Brief description of the drawings
Fig. 1 is a kind of loop control system electrical principle block diagram of development machine eight of the present utility model；
Fig. 2 is the control box structure chart in the utility model；
Fig. 3 is the front and rear illuminating lamp break-make schematic diagram in the utility model；
Fig. 4 is that the oil temperature oil level in the utility model protects system diagram；
Fig. 5 is the Oil pump electrical machinery Booting sequence figure in the utility model；
Fig. 6 is to cut high electric motor starting flow chart in the utility model；
Fig. 7 is to cut low electric motor starting flow chart in the utility model；
Fig. 8 is two fortune electric motor starting flow charts in the utility model；
Fig. 9 is the dedusting fan Booting sequence figure in the utility model；
Figure 10 is the jumbolter Booting sequence figure in the utility model；
Figure 11 is the standby electric motor starting flow chart in the utility model；
Figure 12 is the standby two electric motor starting flow charts in the utility model.
Label declaration in schematic diagram：
1st, external equipment one；2nd, external equipment two；3rd, electric cabinet；11st, control box；12nd, the first oil temperature sensor；13rd,
Two oil temperature sensors；14th, pressure transmitter；15th, the first security isolation grid；16th, the second security isolation grid；17th, the 3rd safety every
From grid；21st, front lamp；22nd, rear lighting lamp；23rd, the first auxiliary reclay；24th, the second auxiliary reclay；31st, transformation is controlled
Device；32nd, intrinsic safety electric source；33rd, PLC and module；111st, casing；112nd, switch module；113rd, display module.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
With reference to shown in Fig. 1 and Fig. 2, a kind of loop control system of development machine eight of the present embodiment, including electric cabinet 3, the electricity
Control and control transformer 31, intrinsic safety electric source 32 and PLC and module 33 are provided with case 3, wherein, control transformer 31 passes through intrinsic safety electric source
32 connection PLC and module 33.In addition, the outside of electric cabinet 3 is provided with external equipment 1, the external equipment 1 including control box 11,
Sensor and pressure transmitter 14, the control box 11, sensor and pressure transmitter 14 are connected with PLC and module 33 respectively, use
In to PLC and the input signal of module 33.It should be noted that above-mentioned control box 11 includes casing 111, the and of switch module 112
Display module 113, the switch module 112 and display module 113 are arranged on casing 111, and switch module 112 passes through freedom
Mouth agreement and PLC and the signal that module 33 is communicated and switch module 112 is sent are sent to PLC and module by RS-485 interfaces
33, meanwhile, display module 113 is communicated using MPI communications protocol with PLC and module 33, to show the operational factor of development machine
State.In addition, being additionally provided with external equipment 22 outside electric cabinet 3, the external equipment 22 includes Oil pump electrical machinery, cuts high motor, cuts
Low motor, two fortune motors, dedusting fan, jumbolter, standby motor one and standby motor two, and Oil pump electrical machinery, cut high motor,
Cut low motor, two fortune motors, dedusting fan, jumbolter, standby motor one and standby motor two respectively with PLC and the phase of module 33
Even, respective working state signal is fed back for receiving and performing PLC and module 33 instruction, and to PLC and module 33.Specifically
PLC in ground, the PLC referred at this and module 33 means programmable controller, cuts high motor and refers to cut high-speed electric expreess locomotive, cuts
Low motor refers to cut slowspeed machine, and in eight loops of the present embodiment, Oil pump electrical machinery, section high motor and a section low motor pass through biography
Sensor feeds back its temperature information to PLC and module 33, via PLC and module 33 make it is corresponding judge and to Oil pump electrical machinery, cut height
Motor and a section low motor send instruction.Meanwhile Oil pump electrical machinery, section high motor, section low motor, two fortune motors, dedusting fan, anchor pole
Rig, standby motor one and standby motor two-way cross earth leakage protective device and feed back earth leakage search/lockout information to PLC and module 33, PLC and
Module 33 sends corresponding instruction according to feedack.In addition, to be additionally provided with electric current mutual for eight loop control systems of the present embodiment
Eight motors such as sensor, above-mentioned Oil pump electrical machinery are also by current transformer to PLC and the fed-back current signals of module 33.It is same with this
When, above-mentioned feedack also feeds back to control box 11 via PLC and module 33, and is shown in the display module of control box 11
On 113, operator can be operated according to feedack by switch module 112 and display module 113, its operation information
PLC and module 33 are sent to by control box 11 so as to be operated.
More specifically, shown in hookup 1 and Fig. 2, above-mentioned display module 113 is located at the interposition of the front panel of casing 111
Put, switch module 112 is circumferentially positioned at the periphery of display module 113, and the switch module 112 includes 12 switches and controlled
Key, 12 switching control keys singly throw self-resetting switch and 1 self-locking reset switch including 10 double-throw self-resetting switch, 1, its
In, 10 double-throw self-resetting switch include oil pump, cut high speed, cut low speed, two fortune, blower fan, rig, it is standby one, standby two,
Information up/down is turned over and exited/resets, and it is key that 1, which is singly thrown self-resetting switch, and 1 self-locking reset button switch is pressed for jerk
Button.When pressing a certain switch key in switch module 112, the switch key sends signal and by communication cable to electric cabinet
PLC and module 33 in 3 send corresponding data value, and PLC and module 33 are judged after data value is received and sent corresponding
Action signal controlled motor carry out start-stop.After motor action, PLC and module 33 are according to the situation of its real time execution to behaviour
Make running status value or failure state value that case 11 sends motor, control box 11 is after respective value is received in display module 113
Man-machine interface on show respective picture, it is preferable that the man-machine interface of the present embodiment controls the scientific and technological man-machine boundaries of KC01-43T using dimension
Face, the man-machine interface picture is clear, easy to use.If occurring the situation of maloperation in operation, in controller PLC
Program can be handled, and ignore maloperation, without action, control box 11 shows constant motor.Under operation, if driving
Machine breaks down, and the PLC and module 33 in electric cabinet 3 gather corresponding fault-signal and be sent to control box 11, control box 11
Display module 113 show failure picture, remind operating personnel check fix a breakdown.If user wishes to check the fortune of development machine
Row information, operate on control box 11 on turn over/under open pass, control box 11 will pass through PLC of the communication cable into electric cabinet 3 and
Module 33 sends corresponding data value, and PLC and module 33 are judged after receiving data value, then are carried out data acquisition and will be adopted
Collect data and return to control box 11, in the display screen display operation information of display module 113；Operate again turn over/under open pass can
To carry out page turning, different every terms of information is checked, operation ESC Escape then returns to running status picture.In addition, above-mentioned control box
11 casing 111 is made up of stainless steel material, and casing 111 has good corrosion resistance, effectively extends making for control box 11
With the life-span, meanwhile, casing 111 is provided with communication cable interface, and the signal of switch module 112 is by above-mentioned communication cable interface
RS485 interfaces export.In addition, switch module 112 and display module 113 are all connected to intrinsically safe power supply, and switching molding
Block 112 is powered after being converted to 5V by intrinsically safe power supply 24V.The stable performance of control box 11, reliability is high, real-time,
Interactive capability is strong, meanwhile, the control box is simple in construction, and low cost is easy to operate.
Further, with reference to shown in Fig. 1 and Fig. 3, above-mentioned external equipment 22 also includes front lamp 21 and rear lighting lamp
22, and front lamp 21 and rear lighting lamp 22 are connected with PLC and module 33 respectively, specifically, as shown in figure 3, front lamp 21
It is connected by the first auxiliary reclay 23 with PLC and module 33, rear lighting lamp 22 passes through the second auxiliary reclay 24 and PLC and mould
Block 33 is connected, and PLC and module 33 are connected with control box 11 again, are had two buttons in the control box 11, are represented front lamp respectively
Switch and rear lighting lamp switch, when pressing front lamp switch/rear lighting lamp switch, control box 11 will by Free agreement
Its switching signal is sent to PLC and module 33, and PLC and module 33 are controlled by internal processes to be exported, and controls the first middle relay
The coil of 23/ second auxiliary reclay of device 24 is connected, and then passes through the auxiliary of the auxiliary reclay 24 of the first auxiliary reclay 23/ second
The Chang Liang of 21/ rear lighting lamp of normally opened contact control front lamp 22.Similarly, when pressing front/rear luminous lamp switch again, among first
The auxiliary contact of 23/ second auxiliary reclay of relay 24 disconnect, and the rear lighting lamp 22 of front lamp 21/ extinguishes.Wherein it is preferred to
In the present embodiment, the PLC and PLC in module 33 model S7-300, in the first above-mentioned auxiliary reclay 23 and second
Between PLC of the relay 24 with model S7-300 be connected.Front and rear illuminating lamp in the present embodiment can independent break-make, avoid
Caused the accident because illuminating lamp light can not observe very much the operating mode of face or tunnel by force, security is higher.
Further, with reference to shown in Fig. 1 and Fig. 4, above-mentioned sensor includes the first oil temperature sensor 12, the second oil temperature
Sensor 13 and firedamp sensor, wherein, the first oil temperature sensor 12 is connected by the first security isolation grid 15 and PLC and module 33
Connect, the second oil temperature sensor 13 is connected by the second security isolation grid 16 with PLC and module 33, should as a kind of preferred scheme
Analog input mModule model SM331 in PLC and module 33.First oil temperature sensing is installed near tank bottoms oil-out
Temperature signal is converted to resistance signal by device 12, the first oil temperature sensor 12, and through the first security isolation grid 15, resistance signal is turned
4-20mA standard current signals are changed to, in the Analog input mModule for recently entering model SM331, pass through model S7-
300 PLC internal processes control, when fuel tank oil temperature reaches 75 DEG C, system-down, Oil pump electrical machinery can not be run, and avoid damaging
Hydraulic Elements are so that delay driving process, and when temperature drops to 70 DEG C, Oil pump electrical machinery could normally start.Meanwhile in gear-box
Second oil temperature sensor 13 is installed, for detecting inner gear of the gear box oil oil temperature, its operation principle and fuel tank at the oil filler of upside
As interior first oil temperature sensor 12, temperature signal is first converted into resistance signal, believed resistance through the second security isolation grid 16
4-20mA standard current signal number is converted to, in the Analog input mModule for recently entering model SM331, through model
S7-300 PLC internal processes control, when inner gear of the gear box oil oil temperature reaches 75 DEG C, cut high motor and cut low motor stopping
Operation, after temperature drops to 70 DEG C, cutting high motor and cutting low motor normally to start.In addition, near tank bottoms oil-out
Pressure transmitter 14 is also equipped with, the pressure transmitter 14 is connected by the 3rd security isolation grid 17 with PLC and module 33, the pressure
Fuel injection pressure signal dress is changed to current signal by power transmitter 14, through the 3rd security isolation grid 17, is converted to 4-20mA normalized currents letter
Number, it is also fed in model SM331 Analog input mModule, is controlled by model S7-300 PLC internal processes, when
When hydraulic oil is highly less than fuel tank mid-height in fuel tank, system-down, Oil pump electrical machinery can not equally be run, and only add hydraulic pressure
Oil makes level height exceed more than fuel tank mid-height, and system unblock, Oil pump electrical machinery could start.The oil temperature oil level real-time guard
System reduces the damage of key element, reduces maintenance cost.
In order to more fully understand a kind of loop control system of development machine eight of the present embodiment, in conjunction with Fig. 5 to Figure 12 to this
Each electric motor starting flow of embodiment is briefly described.The failure that the loop control system of development machine eight of the present embodiment can detect
There are too low fuel tank high oil temperature, oil level, gear-box gear oil high oil temperature, gas shutting, total jerk, cut jerk and each electricity
Machine excess temperature, excessively stream, overload, disconnected phase and electric leakage.When motor is faulty, corresponding motor can not start, when total jerk and gas are closed
When lock, fuel tank high oil temperature, oil level are too low, all motors can not be run, when cut jerk and gear-box gear oil oil temperature mistake
Gao Shi, cutting high motor and cutting low motor to start.It is remaining only after Oil pump electrical machinery starts when all motors are changed without
Motor could start, after wherein Oil pump electrical machinery, section high motor, section low motor, a standby motor and standby two motors are both needed to alarm bell early warning
It could start, while cut high motor, cut low motor and jumbolter interlocking.When Oil pump electrical machinery is changed, standby one can only be changed
On motor, and cut high motor and cut low motor and can not change, now only after a standby electric motor starting, remaining motor could be normal
Start, while cut high motor, cut low motor and jumbolter interlocking.When a section high motor/section low motor is changed, can only also change
Onto a standby motor, now cut low motor/section high motor, jumbolter and a standby motor and interlock, after Oil pump electrical machinery starts, then
Start other motors in addition to high motor/section low motor is cut according to actual needs., can only when two, which transport motor/dedusting fan, changes
Change on standby two, first start Oil pump electrical machinery, then start other motors in addition to two fortune motor/dedusting fans according to actual needs.
It when jumbolter motor is changed, can only also change on standby two motors, it is mutual now to cut high motor, section low motor and standby two motors
Lock, after Oil pump electrical machinery starts, then starts other motors in addition to jumbolter motor according to actual needs.The present embodiment adds
Two-way back-up circuit, be the standby electric motor loop of high current all the way, another way is the standby electric motor loop of low current, when Oil pump electrical machinery,
When cutting high motor, section low motor, two fortune motors, dedusting fan, jumbolter failure can not start, standby electric motor loop can be used
Instead of faulty motor loop works, without shutdown maintenance, operating efficiency is improved, ensure that driving progress.Meanwhile standby motor
Loop is alternatively arranged as common loop and used, during in tunneling process, it is necessary to using the equipment that certain supply voltage is 1140V/660V,
It can be powered and used by back-up circuit, it is very convenient.
The loop control system of a kind of development machine eight of the present utility model, the walking of collection control development machine, cutting arm are lifted and returned
Turn, rear support lifting, shovel board lifting, coal petrography cutting, dedusting, suspension roof support, it is vdiverse in function, drivage efficiency height, repair
Cost is low, safe to use.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, in the case where not departing from the utility model and creating objective, without creatively designing
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (6)
1. a kind of loop control system of development machine eight, including electric cabinet (3), it is characterised in that：It is provided with described electric cabinet (3)
Control transformer (31), intrinsic safety electric source (32) and PLC and module (33), described control transformer (31) pass through intrinsic safety electric source
(32) PLC and module (33) are connected；External equipment one (1), described external equipment one are provided with outside described electric cabinet (3)
(1) control box (11), sensor and pressure transmitter (14), described control box (11), sensor and pressure transmitter are included
(14) it is connected respectively with PLC and module (33), for PLC and module (33) input signal；Described control box (11) includes
Casing (111), switch module (112) and display module (113), described switch module (112) and display module (113) installation
On casing (111), described switch module (112) passes through Free agreement and PLC and module (33) communication and switch module
(112) signal sent is sent to PLC and module (33) by RS-485 interfaces, and described display module (113) is led to using MPI
Interrogate agreement to communicate with PLC and module (33), to show the operational factor state of development machine；Outside described electric cabinet (3) also
Provided with external equipment two (2), described external equipment two (2) include Oil pump electrical machinery, cut high motor, cut low motor, two fortune motors,
Dedusting fan, jumbolter, standby motor one and standby motor two, described Oil pump electrical machinery, cut high motor, cut low motor, two
Fortune motor, dedusting fan, jumbolter, standby motor one and standby motor two are connected with PLC and module (33) respectively, for connecing
The instruction of PLC and module (33) is received and performed, and respective working state signal is fed back to PLC and module (33).
A kind of 2. loop control system of development machine eight according to claim 1, it is characterised in that：Described switch module
(112) 12 switching control keys are included, the switching control key described in 12 is singly thrown certainly including 10 double-throw self-resetting switch, 1
Reset switch and 1 self-locking reset switch.
A kind of 3. loop control system of development machine eight according to claim 2, it is characterised in that：Described control box (11)
Casing (111) be made up of stainless steel material.
A kind of 4. loop control system of development machine eight according to claim 3, it is characterised in that：Described external equipment two
(2) also include front lamp (21) and rear lighting lamp (22), described front lamp (21) and rear lighting lamp (22) respectively with PLC
And module (33) connection.
A kind of 5. loop control system of development machine eight according to claim 4, it is characterised in that：Described front lamp
(21) it is connected by the first auxiliary reclay (23) with PLC and module (33), described rear lighting lamp (22) is by among second
Relay (24) is connected with PLC and module (33).
A kind of 6. loop control system of development machine eight according to claim 1 to 5 any one, it is characterised in that：It is described
Sensor include the first oil temperature sensor (12) and the second oil temperature sensor (13), described the first oil temperature sensor (12) is logical
Cross the first security isolation grid (15) to be connected with PLC and module (33), described the second oil temperature sensor (13) passes through the second safety
Isolated gate (16) is connected with PLC and module (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721033171.XU CN207111085U (en) | 2017-08-17 | 2017-08-17 | A kind of loop control system of development machine eight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721033171.XU CN207111085U (en) | 2017-08-17 | 2017-08-17 | A kind of loop control system of development machine eight |
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| Publication Number | Publication Date |
|---|---|
| CN207111085U true CN207111085U (en) | 2018-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030612A (en) * | 2021-02-26 | 2021-06-25 | 兖矿东华重工有限公司 | Safety detection method, system, device and medium for development machine |
| CN114000863A (en) * | 2022-01-05 | 2022-02-01 | 山西天地煤机装备有限公司 | Anti-misoperation method and device for electro-hydraulic control jumbolter |
-
2017
- 2017-08-17 CN CN201721033171.XU patent/CN207111085U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030612A (en) * | 2021-02-26 | 2021-06-25 | 兖矿东华重工有限公司 | Safety detection method, system, device and medium for development machine |
| CN114000863A (en) * | 2022-01-05 | 2022-02-01 | 山西天地煤机装备有限公司 | Anti-misoperation method and device for electro-hydraulic control jumbolter |
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