CN214315118U - Pressure controller protection circuit of dragveyer rises and tightly installs - Google Patents
Pressure controller protection circuit of dragveyer rises and tightly installs Download PDFInfo
- Publication number
- CN214315118U CN214315118U CN202022783047.3U CN202022783047U CN214315118U CN 214315118 U CN214315118 U CN 214315118U CN 202022783047 U CN202022783047 U CN 202022783047U CN 214315118 U CN214315118 U CN 214315118U
- Authority
- CN
- China
- Prior art keywords
- circuit
- relay
- pressure
- automatic
- series
- 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.)
- Withdrawn - After Issue
Links
- 239000002893 slag Substances 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Electric Cable Installation (AREA)
Abstract
The embodiment of the utility model discloses a pressure controller protection circuit of a tension device of a slag conveyor, which comprises a motor wiring circuit used for connecting a three-phase asynchronous motor; the motor control circuit is connected with the motor wiring circuit and controls the operation of the motor; the manual retraction circuit is used for controlling the manual retraction of the tensioning device of the slag conveyor; the load pressure loss circuit is provided with a pressure loss controller, and when the pressure is lower than a set value, the tension valve is controlled to be opened; the tensioning valve circuit is connected with a tensioning valve; the high-voltage circuit is connected with a pressure controller for stopping the energy accumulator from filling liquid, and when the pressure reaches a set pressure value, the high-voltage circuit controls the energy accumulator to stop filling liquid; the automatic stop circuit controls the system to stop automatically; the system automatic pressure maintaining circuit is provided with an energy storage liquid filling pressure controller for controlling and maintaining the pressure of the energy storage device; the automatic tensioning circuit is provided with an automatic tensioning pressure controller and an automatic control tensioning valve. Adopt the utility model discloses, avoided pressure controller to frequently overflow and start, realized the long-term steady operation of system.
Description
Technical Field
The utility model relates to a control circuit of dragveyer especially relates to a dragveyer rises and tightly installs pressure controller protection circuit.
Background
The hydraulic tensioning system for the chain of the slag conveyor is one of hydraulic schemes specially designed for tensioning control of the chain of a wet-type slag conveyor, can meet the requirement of chain tensioning action, but in actual operation, it is often found that after the tensioning force is set to be lower than the set value, an outlet hydraulic control one-way valve of an energy accumulator cannot be opened, the tensioning pressure cannot be kept, the effect of dynamically tensioning the chain is lost, the abrasion and falling risks of the chain are increased, the system can normally operate for a period of time after the pressure controller is replaced, the hidden danger of equipment is serious, the replacement is troublesome, the oil pressure needs to be unloaded, a tensioning device is mechanically locked, the workload is high, and the consumed spare part amount is large.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a dragveyer rises and tightly installs pressure controller protection circuit, include: the automatic tension control system comprises a motor wiring circuit, a motor control circuit, a load no-voltage circuit, a tension valve, a pressure retaining valve control circuit, a high-voltage circuit, an automatic stop circuit, a system automatic pressure retaining circuit and an automatic tension circuit.
The motor wiring circuit is connected with a three-phase asynchronous motor.
The motor control circuit is connected with the motor wiring circuit and controls the three asynchronous motors to operate.
The load no-voltage circuit is connected with the manual retraction circuit, and when the pressure of the energy accumulator is lower than a set value, the load no-voltage circuit controls the energy accumulator to be charged.
The tensioning valve circuit comprises a normally closed switch of an intermediate relay KA7 and a control reversing valve YV1 which are connected in series.
The pressure retaining valve circuit is provided with two reversing valves YV3 connected in parallel and is connected in series with a normally closed switch of the motor contactor KM 1.
The high-voltage circuit is connected with the pressure retaining valve circuit, and when the pressure of the energy accumulator is too high and is a set value, the high-voltage circuit controls the energy accumulator to stop charging.
The automatic stop circuit is connected in parallel with the system automatic pressure maintaining circuit and comprises a system stop button SB2 and a normally open switch of a relay KA2 which are connected in series.
The automatic pressure maintaining circuit of the system is connected with the automatic stopping circuit.
The automatic tensioning circuit is connected with the automatic pressure maintaining circuit of the system and is used for automatically controlling the tensioning valve to adjust the tensioning pressure.
The pressure controller protection circuit of the tension device of the slag conveyor further comprises an operation fault and voltage loss indicating circuit, wherein the operation fault and voltage loss indicating circuit comprises a power source indicating small lamp (XD1), an operation indicating small lamp XD2, a fault indicating small lamp XD3 and a voltage loss indicating small lamp XD 4. The power supply small lamp XD1 indicates the power supply running condition, the running indication small lamp XD2 indicates the running condition, the fault indication small lamp XD3 indicates whether the circuit is in fault, and the voltage loss indication small lamp XD4 indicates whether the accumulator is in voltage loss.
The pressure controller protection circuit of the tension device of the slag conveyor further comprises a manual retraction circuit, wherein the manual retraction circuit comprises a manual retraction button SB3 and a reversing valve retraction YV2 which are connected in series, and a relay KA5 is connected in parallel.
The load voltage-loss circuit comprises a reset button SB4, a pressure low-low controller SP3 and a relay KA1 which are connected in series, and a time-delay normally-open switch of a time relay KT1 and a normally-open switch of the relay KA1 are connected in series respectively.
The pressure controller protection circuit of the dragveyer tensioning device further comprises a fault circuit, the fault circuit is provided with a breaker QF, and when a fault occurs, the breaker QF controls three-phase asynchronous electric power to stop.
The automatic pressure maintaining circuit of system contains system start button SB1 and is established ties there are relay KA 5's normally closed switch, relay KA 4's normally closed switch and relay KA2, and the parallel connection has relay KA 6's normally closed switch and relay KA3 simultaneously, still the parallel connection is provided with the normally open switch of accumulator liquid filling pressure controller SP1 and relay KA3 on the automatic pressure maintaining circuit of system.
The automatic tight circuit that rises contains and is equipped with time relay KT1, time relay KT1 with the normally open switch of the reversing valve relay KA7 that rises establishes ties to parallelly connected with the automatic pressure controller SP4 that rises, the automatic pressure controller SP4 that rises simultaneously and the normally open switch series connection of auxiliary relay KA7 and relay KA 1.
Implement the embodiment of the utility model provides a, following beneficial effect has: compared with the prior art, a loop is added to protect the automatic tensioning controller SP4, an intermediate relay loop is added, the automatic tensioning pressure controller SP4 starts the intermediate relay KA7 firstly, the intermediate relay KA7 starts the control reversing valve YV1 in an oil way again, frequent overload starting of the pressure controller SP4 is avoided, the stability of system operation is greatly improved, faults are reduced, workload is reduced, consumption of spare parts is reduced, and meanwhile, the automatic tensioning control system has the advantages of being capable of achieving online maintenance, avoiding system shutdown, and reducing risk risks of chain abrasion and falling.
Drawings
Fig. 1 is a control circuit diagram of the tension device of the slag conveyor of the utility model;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a control circuit of a tension device of a slag conveyor is disclosed, which comprises: the system comprises a motor wiring circuit 101, a motor control circuit 102, an operation fault voltage loss indication 103, a manual retraction circuit 104, a load voltage loss circuit 105, a fault circuit 106, a tension valve circuit 107, a pressure retaining valve circuit 108, a high-voltage circuit 109, an automatic stop circuit 110, a system automatic pressure retaining circuit 111 and an automatic tension circuit 112.
The motor wiring circuit 101 is connected with a three-phase asynchronous motor.
The motor control circuit 102 is connected with the motor wiring circuit 101 to control the operation of the three asynchronous motors, and comprises a normally closed switch of a relay KA4, a normally open switch of a relay KA3 and an alternating current contactor KM1 which are connected in series, and is also provided with a normally open switch of a relay KA5 which is connected in parallel.
The operation fault and voltage loss indicating circuit 103, the operation fault and voltage loss indicating circuit 103 includes a power supply indicating circuit: the power supply indicating small lamp XD1 is used for indicating the power supply state; the operation indicating circuit: a normally open switch and a small operation indicator lamp XD2 which comprise an alternating current contactor KM1 connected in series and are used for indicating the operation state of the motor; the fault indication circuit comprises: a normally open switch and a fault indication small lamp XD3 which comprise a relay KA4 connected in series and are used for indicating whether the system has a fault or not; voltage loss indicating circuit: a normally open switch containing a series connected relay KA1 and a small loss of voltage indicator light XD4 for indicating whether the accumulator is lost voltage.
The load voltage-loss circuit comprises a reset button SB4, a pressure low-low controller SP3 and a relay KA1 which are connected in series, and a time-delay normally-open switch of a time relay KT1 and a normally-open switch of the relay KA1 are connected in series respectively.
The fault circuit 106 is provided with a breaker QF and a relay KA4 which are connected in series, a normally open switch of the relay KA4 is connected with the fault indication small lamp XD3 in series, when a fault occurs, the breaker QF controls the motor to stop, and meanwhile the relay KA4 controls the fault indication small lamp XD3 to light.
The tension valve circuit 107 is characterized in that the tension valve circuit 107 comprises a normally closed switch of an intermediate relay KA7 and a control reversing valve YV1 which are connected in series.
The pressure retaining valve circuit 108 is provided with two reversing valves YV3 connected in parallel and connected in series with a normally open switch of the motor contactor KM 1.
The high-voltage circuit 109 comprises a stop accumulator charging pressure controller SP2 and a relay KA6 which are connected in series, and a normally closed switch of the relay KA6 is arranged in the system automatic pressure maintaining circuit and is connected in series with the relay KA 3.
The automatic stop circuit 110 is connected in parallel to the system automatic pressure maintaining circuit 111, which includes a system stop button SB2 and a normally open switch of a relay KA2 connected in series.
The automatic pressurize circuit 111 of system contains system start button SB1 and is established ties there are relay KA 5's normally closed switch, relay KA 4's normally closed switch and relay KA2, and parallel connection has relay KA 6's normally closed switch and relay KA3 simultaneously, 111 still contains the normally open switch of the relay KA2 of series connection setting and the normally open switch that the parallel connection is provided with energy storage ware liquid filling pressure controller SP1, relay KA3 on the automatic pressurize circuit of system.
The automatic tensioning circuit 112 comprises a normally closed switch of a relay connected in series, an automatic tensioning pressure controller SP4 and an intermediate relay KA7, and is connected with a time relay KT1 in parallel, and the time relay is connected with the normally closed switch of the intermediate relay in series. The time relay control delays closing the low pressure controller SP 3.
The working principle is as follows:
when the accumulator is in a liquid charging state, namely the pressure of the pressure controller SP1 is lower than a set value, the KA3 is connected, the KM1 is connected, the hydraulic oil pump is started, the reversing valve YV3 is opened, the accumulator is charged through the one-way valve, when the pressure of the pressure controller SP2 reaches the set value, the KA6 is connected, the oil pump is stopped, the reversing valve YV3 is closed, and the accumulator is stopped from being charged.
When the pressure of the pressure controller SP4 is lower than a set value, the KA7 is connected, the reversing valve YV1 is opened, oil enters the oil cylinder through the one-way valve, and the tensioning pressure is increased.
The automatic tensioning and locking loop is added, when the pressure of the energy accumulator is too low and the pressure of the pressure controller SP3 is lower than a set value, the relay KA1 is switched on, the relay KA7 is switched off, the locking is automatically tensioned, and the tensioning valve is opened in the locking mode. When the pressure of the energy accumulator is normal, and the pressure of the pressure controller SP1 is lower than a set value, the time relay KT1 is started, if the continuous starting time reaches 30 seconds (can be adjusted according to actual conditions), the situation that the continuous charging time of the tension device is too long is judged, the device is abnormal and cannot normally operate is judged, so that the KT1 delay contact is switched on, the relay KA1 is switched on, the automatic tension is locked, and the tension valve is locked and opened.
In order to protect the controller SP4, an intermediate relay loop is added, the pressure controller SP4 starts the intermediate relay KA7 firstly, the intermediate relay KA7 starts the control reversing valve YV1 in an oil way, and frequent overload starting of the pressure controller SP4 is avoided.
The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a dragveyer rises pressure controller protection circuit who tightly installs which characterized in that, this circuit includes: the system comprises a motor wiring circuit (101), a motor control circuit (102), a load voltage-loss circuit (105), a tension valve circuit (107), a pressure retaining valve circuit (108), a high-voltage circuit (109), an automatic stop circuit (110), a system automatic pressure retaining circuit (111) and an automatic tension circuit (112);
the three-phase power supply of the motor wiring circuit (101) is connected with a three-phase asynchronous motor through a switch QF with overload protection and a contactor KM 1;
the motor control circuit (102) controls a power supply to be connected with the motor wiring circuit through an isolation transformer by a three-phase power supply, and controls the three-phase asynchronous motor to operate through KA3, KA5 and KM 1;
the load voltage-loss circuit (105) is connected with the manual retraction circuit, and comprises a reset button SB4, a low-pressure controller SP3 and a relay KA1 which are connected in series, and a time-delay normally-open switch of a time relay KT1 and a normally-open switch of the relay KA1 are connected in series respectively;
the tensioning valve circuit (107) comprises a normally closed switch of an intermediate relay KA7 and a control reversing valve YV1 which are connected in series;
the pressure retaining valve circuit (108) is provided with two connected reversing valves YV3 and is connected in series with a normally closed switch of the motor contactor KM 1;
the high-pressure circuit (109) is connected with the pressure retaining valve circuit, and the high-pressure circuit comprises a stop accumulator charging pressure controller SP2 and a relay KA6 which are connected in series;
the automatic stop circuit (110) is connected in parallel with the system automatic pressure maintaining circuit, and comprises a system stop button SB2 and a normally open switch of a relay KA2 which are connected in series;
the system automatic pressure maintaining circuit (111) is connected with the automatic stopping circuit;
the automatic tensioning circuit (112) is connected with the automatic pressure maintaining circuit of the system, and the automatic tensioning circuit controls the automatic tensioning of the chain of the slag conveyor.
2. The pressure controller protection circuit of the tension device of the slag conveyor as claimed in claim 1, wherein the protection circuit further comprises an operation failure and voltage loss indicating circuit (103), the operation failure and voltage loss indicating circuit (103) comprises a power supply indicating circuit: the power supply indicating small lamp XD1 is used for indicating the power supply state; the operation indicating circuit: a normally open switch and a small operation indicator lamp XD2 which comprise an alternating current contactor KM1 connected in series and are used for indicating the operation state of the motor; the fault indication circuit comprises: a normally open switch and a fault indication small lamp XD3 which comprise a relay KA4 connected in series and are used for indicating whether the system has a fault or not; voltage loss indicating circuit: a normally open switch containing a series connected relay KA1 and a small loss of voltage indicator light XD4 for indicating whether the accumulator is lost voltage.
3. The pressure controller protection circuit of the tensioning device of the slag conveyor according to claim 1, wherein the protection circuit further comprises a manual retraction circuit (104), the manual retraction circuit (104) comprises a manual retraction button SB3 and a reversing valve retraction YV2 which are connected in series, and is connected in parallel with a relay KA5, a normally open switch of the relay KA5 is connected in parallel with the motor control circuit, and a normally closed switch of the relay KA5 is connected in series with a system start button SB1, a normally closed switch of the relay KA4 and a relay KA 2.
4. The pressure controller protection circuit of the tension device of the slag conveyor as claimed in claim 1, characterized in that the protection circuit further comprises a fault circuit (106), the fault circuit (106) is provided with a breaker QF and a relay KA4 which are connected in series, a normally open switch of the relay KA4 is connected in series with a fault indication small lamp XD3, when a fault occurs, the breaker QF controls the motor to stop, and the relay KA4 controls the fault indication small lamp XD3 to light.
5. The pressure controller protection circuit of the tensioning device of the slag conveyor according to claim 1, characterized in that the system automatic pressure maintaining circuit (111) comprises a system starting button SB1 and is connected in series with a normally closed switch of a relay KA5, a normally closed switch of a relay KA4 and a relay KA2, and is connected in parallel with a normally closed switch of a relay KA6 and a relay KA3, and the system automatic pressure maintaining circuit is also connected in parallel with a normally open switch of an accumulator charging pressure controller and a relay KA 3.
6. The pressure controller protection circuit of the tensioning device of the slag conveyor as claimed in claim 1, characterized in that the automatic tensioning circuit (112) comprises a time relay KT1, the time relay KT1 is connected in series with the normally open switch of the tensioning reversing valve relay KA7 and in parallel with the automatic tensioning pressure controller SP4, and the automatic tensioning pressure controller SP4 is connected in series with the normally open switches of the intermediate relay KA7 and the relay KA 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022783047.3U CN214315118U (en) | 2020-11-26 | 2020-11-26 | Pressure controller protection circuit of dragveyer rises and tightly installs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022783047.3U CN214315118U (en) | 2020-11-26 | 2020-11-26 | Pressure controller protection circuit of dragveyer rises and tightly installs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214315118U true CN214315118U (en) | 2021-09-28 |
Family
ID=77844123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022783047.3U Withdrawn - After Issue CN214315118U (en) | 2020-11-26 | 2020-11-26 | Pressure controller protection circuit of dragveyer rises and tightly installs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214315118U (en) |
-
2020
- 2020-11-26 CN CN202022783047.3U patent/CN214315118U/en not_active Withdrawn - After Issue
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102251980B (en) | Subway tunnel fan control system | |
| CN110474595B (en) | Switching control circuit and starting-up and switching control method for main oil pump of blower | |
| CN214315118U (en) | Pressure controller protection circuit of dragveyer rises and tightly installs | |
| CN102709116B (en) | Alternating-current contactor in low-voltage alternating-current control circuit and control method of alternating-current contactor | |
| JP2007135364A (en) | Power conditioner device | |
| CN101355340B (en) | Control method for automatically switching standby power of synchronous motor | |
| CN202182052U (en) | Fan control system of underground railway tunnel | |
| CN113669243B (en) | Control system and method for high-pressure oil jacking device of pumped storage unit | |
| CN216052719U (en) | High-pressure oil jacking control device for generator of hydropower station | |
| CN101572501B (en) | Monitoring circuit | |
| CN212033802U (en) | Energy storage system | |
| CN110601346B (en) | Comprehensive motor protection controller with anti-interference function | |
| CN207277443U (en) | Pressurized tank ultra-low pressure starting device | |
| CN211557187U (en) | Intelligent safety monitoring system | |
| CN204633646U (en) | A kind of disintegrating machine threephase asynchronous machine soft starting device | |
| CN204559446U (en) | A kind of wind generating set yaw control circuit | |
| CN113864171A (en) | Control method of high-pressure oil jacking system of hydropower station generator | |
| CN218886460U (en) | Temporary water supply control circuit for cities and towns | |
| CN202872456U (en) | Control device enabling automatic switching on of mains electricity supply after UPS failure in ingot casting production process | |
| CN210629086U (en) | Low-voltage protection control device for AC motor in continuous and stable operation in power failure | |
| CN218598342U (en) | Anti-shaking electricity power-off circuit for oil pump motor of oil station | |
| CN218713538U (en) | Intelligent constant-pressure water supply system | |
| CN209510747U (en) | A kind of bending moment safety arrestment pressure regulation fluid path | |
| CN211569821U (en) | Variable frequency driving device of hydraulic car handling equipment | |
| CN220085281U (en) | Anti-blocking monitoring system of feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210928 Effective date of abandoning: 20240104 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210928 Effective date of abandoning: 20240104 |