CN211948648U - Emergency auxiliary steering interlocking control device for safety braking of underground carry scraper - Google Patents
Emergency auxiliary steering interlocking control device for safety braking of underground carry scraper Download PDFInfo
- Publication number
- CN211948648U CN211948648U CN201922231798.1U CN201922231798U CN211948648U CN 211948648 U CN211948648 U CN 211948648U CN 201922231798 U CN201922231798 U CN 201922231798U CN 211948648 U CN211948648 U CN 211948648U
- Authority
- CN
- China
- Prior art keywords
- relay
- power supply
- contact
- control
- normally open
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
The utility model relates to an urgent supplementary interlocking control device that turns to of underground carry scraper safety braking, including power supply module, start locking circuit, parking brake circuit and the urgent braking circuit that turns to, power supply module's both ends are parallelly connected with starter and generator. The utility model discloses a judge the operating condition of engine, the operating position of the closure/disconnection of power master switch, second time relay and seventh relay come control solenoid valve Y4's circular telegram and outage, make braking circuit's pressure unload when solenoid valve Y4 got the electricity, thereby guarantee that underground scraper shuts down and closes power master switch back vehicle and realize the automatic braking function, can make vehicle automatic braking and can remove the vehicle to safe region after the abnormal flame-out simultaneously again, rely on the power of vehicle self to realize the supplementary device that turns to of vehicle at the trailer in-process. After the engine is normally stopped and the power main switch is turned off, the high-voltage equipment of the hydraulic system is released, and the vehicle is automatically braked.
Description
Technical Field
The utility model relates to a mining machinery braking technical field especially relates to an underground scraper safety braking's urgent supplementary steering interlock control device.
Background
At present, underground mining operation belongs to high-risk industry, and provides new requirements for safe work in the face of increasingly complex working conditions. With the rapid development of modern industrial and scientific technology, various production equipment safety control systems for mine production are continuously perfected, not only on the continuous perfection of the performance of the equipment, but also on the safety control function of the equipment.
The existing underground scraper has the following disadvantages: 1. after the vehicle is shut down and the power master switch is turned off, the accumulator can be charged for a little long time after the engine is restarted. 2. When the engine is abnormally flamed, the steering wheel is operated to prevent the vehicle from turning, and when the scraper vehicle is controlled to carry out scraping, if the vehicle slides in neutral gear or is abnormally flamed, the scraper vehicle cannot be effectively prevented from sliding downwards, so that the scraper vehicle is easy to directly rush down to cause danger.
SUMMERY OF THE UTILITY MODEL
The purpose of the present invention is to solve at least one of the technical drawbacks.
Therefore, the utility model aims to provide a safety device which can not only realize the low-pressure safety state of the energy accumulator high-voltage equipment after the main switch is shut down and turned off, but also ensure the automatic braking of the vehicle; the emergency auxiliary steering interlocking control device for the safety brake of the underground carry scraper realizes the emergency auxiliary steering function through the motor pump when the engine is abnormally shut down.
The utility model relates to an emergency auxiliary steering interlocking control device for safety braking of an underground carry scraper, which comprises a power supply assembly, a starting locking circuit, a parking braking circuit and an emergency steering braking circuit, wherein both ends of the power supply assembly are connected with a starter and a generator in parallel,
the emergency steering brake circuit comprises a second relay, a fourth relay, a fifth relay, a sixth relay, a seventh relay, a first time relay, a second time relay and a third time relay,
the control coil of the seventh relay is connected with the control coil of the second time relay in parallel and is respectively connected with the parking brake circuit,
one end of a normally open contact of the fifth relay and one end of a control contact of the first time relay are respectively connected with the positive polarity end of the power supply assembly through a third circuit breaker, the other end of the normally open contact of the fifth relay is sequentially connected with a normally open contact of the fourth relay and a control coil of the first time relay in series, two ends of the normally open contact of the fifth relay are also connected with two ends of the normally open contact of the sixth relay in parallel, the control coil of the first time relay is connected with a control coil of the sixth relay in parallel, the other end of the control contact of the first time relay is sequentially connected with the normally closed contact of the second relay and the electromagnetic valve in series,
one end of the normally closed contact of the second relay is also connected with the control contact of the second time relay and one end of the normally closed contact of the seventh relay in sequence,
one end of a control contact of the third time relay is sequentially connected with a normally open contact of a control button and one end of a fourth circuit breaker in series, the other end of the fourth circuit breaker is connected with a positive polarity end of the power supply assembly, the control contact of the third time relay is connected with a control coil of an eighth relay in series and then is connected with the control coil of the third time relay in parallel,
one end of a normally open contact of the eighth relay is sequentially connected with the DC motor and the negative pole end of the power supply assembly, and the other end of the normally closed contact of the seventh relay and the other end of the normally open contact of the eighth relay are respectively connected with the positive pole end of the storage battery.
Preferably, start locking circuit and include key switch, brake button, keep off position switch and first relay, the positive polarity end of power supply module is connected with the current input end of key switch through first circuit breaker, the third output of key switch establishes ties brake button's normally open contact, keeps off position switch, the normally open contact of first relay in proper order, the normally closed contact of first relay with the control end of starter is connected, the third output of key switch further with start off-load solenoid valve and be connected, the first normally closed contact of first output and emergency stop button of key switch, disconnected area switch, flame-out solenoid valve establish ties in proper order.
In any one of the above embodiments, preferably, the third output terminal of the key switch is further connected to the control coil of the fifth relay, and the first output terminal of the key switch is further connected to the control coil of the fourth relay.
In any of the above embodiments, preferably, the control terminal of the generator is connected to the control coil of the third relay and the control coil of the second relay, respectively.
In any of the above schemes, preferably, the parking brake circuit includes a pressure switch and a brake solenoid valve, the positive polarity end of the power supply assembly is connected in series with the second normally closed contact of the emergency stop button, the normally closed contact of the brake button, the normally open contact of the third relay, the pressure switch and the brake solenoid valve in sequence through a third circuit breaker, and the brake solenoid valve is further connected with the negative polarity end of the power supply assembly.
In any one of the above aspects, preferably, one end of the control coil of the seventh relay is connected to one end of the second normally closed contact of the emergency stop button.
In any of the above embodiments, preferably, a second circuit breaker is provided between the positive polarity side of the power supply module and the generator.
In any of the above schemes, preferably, the power supply assembly includes a battery, a main power switch and a fuse, and the battery, the main power switch and the fuse are connected in series in sequence.
Compared with the prior art, the utility model has the advantages and beneficial effects do:
1. after the engine is stopped, the power-on time of the electromagnetic valve Y4 is controlled by the disconnection state of the main power switch and the power-off delay time of the second time relay, so that the high-voltage equipment is subjected to pressure relief, the high-voltage equipment of the hydraulic system is ensured to be in a low-voltage safety state, and the condition that the charging time of the energy accumulator is slightly long after the engine is restarted after the engine is stopped is avoided.
2. Whether a coil of the electromagnetic valve Y4 is electrified or not is controlled through the on/off state of a main switch of the power supply, a time relay and the interlocking relation of control contacts of the relay, so that the safety braking function of the vehicle after the vehicle is stopped and the abnormal flameout of an engine are realized, a storage battery is used as the power supply, a power source is provided for a hydraulic pump by controlling the on/off state of a direct-current motor, the safety braking and the auxiliary steering control device of the underground scraper are realized, and the safety of an operator and others is ensured.
The emergency auxiliary steering interlock control device for safety braking of the underground carry scraper of the present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a circuit schematic diagram of a starting locking circuit in the emergency auxiliary steering interlocking control device for the safety braking of the underground carry scraper;
FIG. 2 is a schematic circuit diagram of a parking brake circuit in the emergency auxiliary steering interlock control device for safety braking of the underground carry scraper of the present invention;
fig. 3 is a schematic circuit diagram of an emergency steering brake circuit in the emergency auxiliary steering interlocking control device for the safety brake of the underground carry scraper.
Detailed Description
The utility model provides an urgent supplementary interlocking control device that turns to of underground carry scraper safety braking, including power supply module, start locking circuit, parking brake circuit and the urgent braking circuit that turns to, power supply module's both ends are parallelly connected to have starter D and generator F.
The power supply assembly comprises a battery GB, a power supply main switch S and a fuse FU1, wherein the battery GB, the power supply main switch S and the fuse FU1 are sequentially connected in series. The starter D and the generator F are circuit loop components of a whole vehicle electrical system, wherein the starter D can start the engine, and the generator F is used for providing electric energy for the whole vehicle after the engine is started.
As shown in fig. 1, the starting locking circuit comprises a key switch SB1, a brake button, a gear switch SQ and a first relay K1, wherein a positive polarity end of a power supply assembly is connected with a current input end of the key switch SB1 through a first breaker QF1, a third output end of the key switch SB1, namely a III-gear position, is sequentially connected in series with a normally open contact SB21 of the brake button, the gear switch SQ and a normally open contact of the first relay K1, a normally closed contact of the first relay K1 is connected with a control end of a starter D, a third output end of the key switch SB1 is further connected with a starting unloading solenoid valve Y2, and a first output end, namely an I-gear position, of the key switch SB1 is sequentially connected in series with a normally closed contact SB31 of the emergency stop button, a strip breaking switch SD and an extinguishing solenoid valve Y1.
In the embodiment, when the key switch SB1 is in the III-gear position, the brake button is in the pressed state, the normally open contact SB21 is closed, the gear switch SQ is in the neutral position, the first relay K1 is electrified and transmits an electric signal to the control end of the generator F, and the generator F is electrified and started successfully. The key switch SB1 returns to the I position after the engine start is successful. The above is the engine start control loop condition.
Further, the third output terminal of the key switch SB1 is also connected to the control coil K51 of the fifth relay, and the first output terminal of the key switch SB1 is also connected to the control coil K41 of the fourth relay.
Further, the control terminal of the generator F is connected to the control coil K31 of the third relay and the control coil K21 of the second relay, respectively.
As shown in fig. 2, the parking brake circuit includes a pressure switch KP1 and a brake solenoid valve Y3, the positive polarity end of the power supply module is connected in series with the second normally closed contact SB32 of the emergency stop button, the normally closed contact SB22 of the brake button, the normally open contact K32 of the third relay, the pressure switch KP1 and the brake solenoid valve Y3 in sequence through a third breaker QF3, and the brake solenoid valve Y3 is further connected with the negative polarity end of the power supply module.
Further, a second circuit breaker QF2 is provided between the positive polarity side of the power module and the generator F.
As shown in fig. 3, the emergency steering brake circuit includes a second relay, a fourth relay, a fifth relay, a sixth relay, a seventh relay, a first time relay, a second time relay and a third time relay, wherein the power-on and power-off time of the first time relay, the second time relay and the third time relay can be set according to specific conditions, preferably, the power-on time of the first time relay is delayed by 60s, the power-off time of the second time relay is delayed by 10s, and the power-off time of the third time relay is delayed by 10 s. It should be noted that the setting of the on/off time is not intended to limit the scope of the present invention, but is only for better explaining the working principle of the present invention.
A control coil K71 of the seventh relay is connected with a control coil KT21 of the second time relay in parallel, one end of a control coil K71 of the seventh relay is connected with one end of a second normally closed contact SB32 of the emergency stop button, one end of a normally open contact K52 of the fifth relay and one end of a control contact KT12 of the first time relay are connected with the other end of a second normally closed contact SB32 of the emergency stop button, the other end of a normally open contact K52 of the fifth relay is connected with a normally open contact K42 of the fourth relay and a control coil KT11 of the first time relay in series in sequence, two ends of a normally open contact K52 of the fifth relay are also connected with two ends of a normally open contact K62 of the sixth relay in parallel, a control coil KT11 of the first time relay is connected with a control coil K61 of the sixth relay in parallel, the other end of the control contact KT12 of the first time relay is connected with a contact K22 of the second relay and an electromagnetic valve Y, when the electromagnetic valve Y4 is electrified, the hydraulic system works, when the electromagnetic valve Y4 is powered off, the hydraulic system does not work, one end of the normally closed contact K22 of the second relay is also sequentially connected with the control contact KT22 of the second time relay and one end of the normally closed contact K72 of the seventh relay, one end of the control contact KT32 of the third time relay is connected with the normally open contact SB4 of the control button, one end of a fourth circuit breaker QF4 is sequentially connected in series, the other end of the fourth circuit breaker QF4 is connected with the positive polarity end of the power supply assembly, a control contact KT32 of the third time relay is connected with a control coil K81 of the eighth relay in series and then connected with a control coil KT31 of the third time relay in parallel, one end of a normally open contact K82 of the eighth relay is sequentially connected with the direct current motor and the negative polarity end of the power supply assembly, and the other end of a normally closed contact K72 of the seventh relay and the other end of a normally open contact K82 of the eighth relay are respectively connected with the positive polarity end of the storage battery.
The utility model discloses a theory of operation: when the underground scraper is used for closing the vehicle power supply main switch S, the control coil K71 of the seventh relay is electrified, the normally closed contact K72 of the seventh relay is disconnected, the electromagnetic valve Y4 is powered off, and the hydraulic system does not work; when normally starting the engine, the control coil K41 of fourth relay is circular telegram, its normally open contact K42 is closed, the control coil K51 of fifth relay is circular telegram, its normally open contact K52 is closed, the control coil KT11 of first time relay gets electric, its normally open time delay closed contact KT12 is closed after 60S of delay, the engine has successfully started this moment, the control coil K21 of second relay gets electric its normally closed contact K22 disconnection, solenoid valve Y4 is in the outage state. Whether the electromagnetic valve Y4 is electrified or not is controlled through the second relay, the seventh relay and the first time relay in an interlocking mode, when the key switch SB1 is used for closing and the engine is not powered off, the electromagnetic valve Y4 is not electrified, the hydraulic system does not work, the pressure of an accumulator brake loop is not relieved, and the problem that the working time is influenced due to the fact that the accumulator is charged for too long time is solved.
After engine normally stalls and shuts down and close the power master switch, the control coil K71 outage of seventh relay, its normally closed contact K72 is closed, the control coil KT11 outage of first time relay, its normally open contact KT12 disconnection, carry out the interlocking, the control coil KT21 outage of second time relay, its normally open time delay disconnection contact 22 disconnection behind the 10S of time delay, give solenoid valve KT Y4 circular telegram, hydraulic system work, unload the pressure of accumulator braking circuit, braking circuit pressure switch KP1 disconnection this moment, thereby braking solenoid valve Y3 outage realizes vehicle braking.
When the engine abnormal flameout condition appeared in the underground carry scraper, key switch SB1 stayed I and kept the state, and the control coil K21 of second relay loses the electricity, and its normally closed contact K22 is closed, and simultaneously, the control coil KT11 of first time relay gets electric, and its normally open contact KT12 is closed, and solenoid valve Y4 gets electric, realizes the vehicle braking. When the vehicle needs to be towed, the key switch SB1 is turned off, the control coils K41/K51 of the fourth relay and the fifth relay are powered off, the normally open contact K42/K52 is disconnected, the control coil KT11 of the first time relay is powered off, the normally open time delay closing contact KT12 of the first time relay is disconnected, the electromagnetic valve Y4 is powered off, the normally open contact SB4 of the control button is used for electrifying the control coil K81 of the eighth relay at the moment, the direct-current motor M works and starts to provide a power source for the hydraulic pump, a driver can steer and tow the vehicle to a maintenance area for maintenance by rotating a steering wheel, the steering time of the vehicle is limited by delaying through the third time relay, the power consumption of a storage battery is saved, the vehicle can be conveniently towed for a long distance, and the safety of operators and other personnel is greatly.
The utility model discloses key switch SB1 stops the engine and succeeds the back, and normally closed contact K72 through the seventh relay breaks off solenoid valve Y4's coil power, then hydraulic system inoperative. Only after normally starting the engine through key switch SB1, when making the engine stall and closing switch S, the control coil K71 of seventh relay cuts off the power supply, and its normally closed contact K72 is closed, and the control coil KT11 of first time relay cuts off the power supply, and its normally open contact KT12 disconnection carries out the interlocking, and second time relay outage time delay 10S makes solenoid valve Y4' S coil electrified, and the vehicle automatic braking function is realized in hydraulic braking return circuit release.
When the engine is abnormally shut down, the control coil K21 of the second relay is powered off to close the normally closed contact K22, the control coil KT11 of the first time relay is powered on, the normally open contact KT12 of the first time relay is closed, the coil of the electromagnetic valve Y4 is powered on, the hydraulic brake circuit is relieved to relieve pressure to realize the automatic braking function of the vehicle, at the moment, if the vehicle needs to be dragged away, the key switch SB1 needs to be closed, the control button is pressed to close the normally open contact SB4 of the eighth relay, the control coil K81 of the eighth relay is powered on, the steering wheel is operated within 10S before the control contact KT32 of the third time relay does not act, the normally open contact K82 of the eighth relay is closed and communicated with the positive pole of the storage battery, the direct-current motor M works to provide a power source for the hydraulic pump to work, the purpose of steering is achieved by controlling the steering wheel to rotate. The embodiment mainly applies the on/off state of a main switch of a power supply, a time relay and the interlocking relation of control contacts of the relay to control whether a coil of the electromagnetic valve Y4 is electrified or not, so that the safety braking function of the vehicle after the vehicle is stopped and the engine is abnormally shut down are realized, a storage battery is used as the power supply, a power source is provided for the hydraulic pump by controlling the on/off state of the direct-current motor, the safety braking and the auxiliary steering control device of the underground carry scraper are realized, and the safety of an operator and others is ensured.
According to the auxiliary steering device, the working state of an engine, the on/off working position of the power main switch S, the second time relay and the seventh relay are artificially judged to control the electrification and the outage of the electromagnetic valve Y4, when the electromagnetic valve Y4 is electrified, the pressure of a brake loop is relieved, the underground scraper is guaranteed to stop, the automatic braking function of a vehicle is realized after the power main switch is turned off, meanwhile, the vehicle can be automatically braked after abnormal flameout and can be moved to a safe area, and the steering of the vehicle is realized by the aid of the power of the vehicle in the towing process. After the engine is normally stopped and the power main switch is turned off, the high-voltage equipment of the hydraulic system is released, and the vehicle is automatically braked. When the engine is abnormally shut down, the direct current motor M is electrified to provide a power source for the steering pump, so that the steering function of the vehicle is ensured. After the engine is shut down, the power-on time of the electromagnetic valve Y4 is controlled through the disconnection state of the power main switch and the second time relay, so that the high-voltage equipment is subjected to pressure relief, and the high-voltage equipment of the hydraulic system is ensured to be in a low-pressure safety state (namely, the energy accumulator is in an incomplete pressure relief state). And secondly, when the engine is abnormally flamed out, the automatic braking of the vehicle can be ensured, and the steering function can be realized when the vehicle is towed in an auxiliary manner.
The utility model discloses can guarantee that underground scraper shuts down the back at normal work, can make the high-tension apparatus of vehicle guarantee to be in the low pressure state, realize vehicle automatic braking function simultaneously. When the engine is abnormally flamed out, the power-on state of a control coil of the relay is controlled through the button, and the scraper steering wheel is operated to enable the vehicle to steer so as to move the equipment to a safe area. The vehicle steering system mainly reflects unsafe factors of the engine, which cannot be predicted by an operator, in a dangerous state, can automatically brake the vehicle and realize the vehicle steering function by operating the steering wheel, thereby effectively preventing dangerous conditions from occurring.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (8)
1. The utility model provides an urgent supplementary interlocking control device that turns to of underground carry scraper safety braking, includes power supply module, starts locking circuit, parking brake circuit and the urgent braking circuit that turns to, the both ends of power supply module are parallelly connected with starter and generator, its characterized in that:
the emergency steering brake circuit comprises a second relay, a fourth relay, a fifth relay, a sixth relay, a seventh relay, a first time relay, a second time relay and a third time relay,
the control coil of the seventh relay is connected with the control coil of the second time relay in parallel and is respectively connected with the parking brake circuit,
one end of a normally open contact of the fifth relay and one end of a control contact of the first time relay are respectively connected with the positive polarity end of the power supply assembly through a third circuit breaker, the other end of the normally open contact of the fifth relay is sequentially connected with a normally open contact of the fourth relay and a control coil of the first time relay in series, two ends of the normally open contact of the fifth relay are also connected with two ends of the normally open contact of the sixth relay in parallel, the control coil of the first time relay is connected with a control coil of the sixth relay in parallel, the other end of the control contact of the first time relay is sequentially connected with the normally closed contact of the second relay and the electromagnetic valve in series,
one end of the normally closed contact of the second relay is also connected with the control contact of the second time relay and one end of the normally closed contact of the seventh relay in sequence,
one end of a control contact of the third time relay is sequentially connected with a normally open contact of a control button and one end of a fourth circuit breaker in series, the other end of the fourth circuit breaker is connected with a positive polarity end of the power supply assembly, the control contact of the third time relay is connected with a control coil of an eighth relay in series and then is connected with the control coil of the third time relay in parallel,
one end of a normally open contact of the eighth relay is sequentially connected with the DC motor and the negative pole end of the power supply assembly, and the other end of the normally closed contact of the seventh relay and the other end of the normally open contact of the eighth relay are respectively connected with the positive pole end of the storage battery.
2. The underground scraper safety braked emergency assist steering interlock control device of claim 1, characterized in that: the starting locking circuit comprises a key switch, a brake button, a gear switch and a first relay, the positive polarity end of the power supply assembly is connected with the current input end of the key switch through a first circuit breaker, the third output end of the key switch is sequentially connected with the normally open contact of the brake button, the normally open contact of the gear switch and the normally open contact of the first relay in series, the normally closed contact of the first relay is connected with the control end of the starter, the third output end of the key switch is further connected with the starting unloading electromagnetic valve, and the first output end of the key switch is sequentially connected with the first normally closed contact of the emergency stop button, the belt breaking switch and the flameout electromagnetic valve in series.
3. The underground scraper safety braked emergency assist steering interlock control device of claim 2, characterized in that: and the third output end of the key switch is also connected with the control coil of the fifth relay, and the first output end of the key switch is also connected with the control coil of the fourth relay.
4. The underground scraper safety braked emergency assist steering interlock control device of claim 3, characterized in that: and the control end of the generator is respectively connected with the control coil of the third relay and the control coil of the second relay.
5. The underground scraper safety braked emergency assist steering interlock control device of claim 4, characterized in that: the parking brake circuit comprises a pressure switch and a brake solenoid valve, wherein the positive polarity end of the power supply assembly is sequentially connected with the second normally closed contact of the emergency stop button, the normally closed contact of the brake button, the normally open contact of the third relay, the pressure switch and the brake solenoid valve in series through a third circuit breaker, and the brake solenoid valve is further connected with the negative polarity end of the power supply assembly.
6. The underground scraper safety braked emergency assist steering interlock control device of claim 5, characterized in that: and one end of a control coil of the seventh relay is connected with one end of a second normally closed contact of the emergency stop button.
7. The underground scraper safety braked emergency assist steering interlock control device of claim 1, characterized in that: and a second circuit breaker is arranged between the positive polarity end of the power supply assembly and the generator.
8. The underground scraper safety braked emergency assist steering interlock control device of claim 1, characterized in that: the power supply assembly comprises a battery, a power supply main switch and a fuse, wherein the battery, the power supply main switch and the fuse are sequentially connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922231798.1U CN211948648U (en) | 2019-12-12 | 2019-12-12 | Emergency auxiliary steering interlocking control device for safety braking of underground carry scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922231798.1U CN211948648U (en) | 2019-12-12 | 2019-12-12 | Emergency auxiliary steering interlocking control device for safety braking of underground carry scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211948648U true CN211948648U (en) | 2020-11-17 |
Family
ID=73175078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922231798.1U Active CN211948648U (en) | 2019-12-12 | 2019-12-12 | Emergency auxiliary steering interlocking control device for safety braking of underground carry scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211948648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681975A (en) * | 2020-12-29 | 2021-04-20 | 安百拓（南京）建筑矿山设备有限公司 | Engineering truck control method and system based on engine and motor starting interlocking |
-
2019
- 2019-12-12 CN CN201922231798.1U patent/CN211948648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681975A (en) * | 2020-12-29 | 2021-04-20 | 安百拓（南京）建筑矿山设备有限公司 | Engineering truck control method and system based on engine and motor starting interlocking |
| CN112681975B (en) * | 2020-12-29 | 2023-08-11 | 安百拓（南京）建筑矿山设备有限公司 | Engineering truck control method and system based on engine and motor starting interlocking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205836557U (en) | The control system of electric motor car emergency cut-off high voltage supply and electric motor car | |
| CN211948648U (en) | Emergency auxiliary steering interlocking control device for safety braking of underground carry scraper | |
| CN110654238B (en) | New energy vehicle electrical system and safe power failure control method | |
| CN102392469B (en) | Electric drive rotation control system, engineering machinery and rotation emergency braking control method | |
| CN108551153B (en) | Charging pile fault recovery control method and system | |
| CN202923409U (en) | Emergency stopping control system of full-electric commercial vehicle | |
| CN104626164A (en) | Motor band-type brake control device of industrial robot | |
| CN103770775A (en) | Equipment protecting device for hybrid power vehicle and working method thereof | |
| CN104810919A (en) | Automatic switching device and method based on standby power supply | |
| CN205818968U (en) | A kind of charging shutdown control circuit for electric vehicle | |
| CN203078325U (en) | Protection system for preventing master contactor of vehicle-mounted motor control system from losing effectiveness | |
| CN113022313B (en) | VCU power-off protection circuit, power-off control method, system and engineering machinery | |
| CN202923541U (en) | Equipment protection device of hybrid electric vehicle | |
| CN203285603U (en) | Starting circuit and traffic safety protection device of diesel scraper | |
| CN107791891A (en) | The powered compatible technique by phase-separating section of locomotive | |
| CN105270181A (en) | Intermediate relay control device, and control method thereof, and high-voltage power-down control method | |
| CN203211288U (en) | System for preventing low-pressure starting | |
| CN202727995U (en) | Electric automobile power output system with high-voltage quick break switch | |
| CN214985202U (en) | Safety protection associated control device for diesel underground scraper | |
| CN214001351U (en) | Range-extended pure electric vehicle safety interlocking loop signal detection loop | |
| CN214363760U (en) | Excavator opens and stops control system | |
| CN205178641U (en) | Unusual power protection devices | |
| CN205344543U (en) | A hybrid vehicle high -pressure interlocking return circuit (HVIL) based on security policy | |
| CN111347891B (en) | Electric automobile, driving device, driving system and power supply control method thereof | |
| CN218489639U (en) | Underground trackless equipment shutdown safety brake control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |