阅读说明：本技术 执行机构控制系统 (Control system of actuating mechanism ) 是由 曹启振 周燕红 张军 于 2019-09-12 设计创作，主要内容包括：本发明公开了一种执行机构控制系统,控制器正常工作时其脉冲信号输出端输出第一周期脉冲信号,故障时其脉冲信号输出端输出第二周期脉冲信号或者输出低电平；备用控制电路包括备用控制继电器及延时释放继电器；备用控制继电器的线圈、常开触点及延时释放继电器的常开触点串接在控制电源正负端之间；当控制端为高电平时延时释放继电器的触点闭合,当其控制端由高电平变为低电平,延时释放继电器的触点迟延断开；延时释放继电器的控制端接控制器的脉冲信号输出端；备用控制继电器的常开触点并且串联在控制器的主控信号输出端同执行机构的控制端之间。本发明能监控控制器的故障状态,并能在控制器故障时立即切断控制器对执行机构的控制。(The invention discloses a kind of control system of actuating mechanism, its pulse signal output end exports period 1 pulse signal when controller works normally, its pulse signal output end output second round pulse signal or output low level when failure；Standby control circuit includes spare control relay and delay release relay；The normally opened contact of the spare coil for controlling relay, normally opened contact and the release relay that is delayed is serially connected between control power supply positive and negative terminal；The contact closure of delay release relay when control terminal is high level, when its control terminal becomes low level from high level, the contact for the release relay that is delayed delays disconnecting；The pulse signal output end of the control termination controller of delay release relay；It is spare control relay normally opened contact and be connected on the master signal output end of controller between the control terminal of executing agency.The malfunction of energy monitoring controller of the present invention, and control of the controller to executing agency can be cut off immediately in controller failure.)

1. a kind of control system of actuating mechanism, which is characterized in that it includes controller (9) and standby control circuit；

The controller (9) has pulse signal output end and master signal output end；

The controller (9), when its normal work, pulse signal output end exports period 1 pulse signal；When its event When barrier, pulse signal output end exports second round pulse signal or output low level；

Standby control circuit includes spare control relay and delay release relay (3)；

The coil (11) of spare control relay, the normally opened contact (12) of spare control relay and delay release relay (3) Contact be serially connected in control power supply (5) positive and negative terminal between；

The delay release relay (3), contact be normally opened contact, when its control terminal be high level when its contact closure, when Its control terminal becomes low level from high level, its contact disconnects after delaying setting time T0；

The control of delay release relay (3) terminates the pulse signal output end of the controller；

The cycle T 1 of the period 1 pulse signal is less than the setting time T0, the period of the second round pulse signal T2 is greater than the setting time T0；

The normally opened contact (12) of the spare control relay and the same execution of master signal output end for being connected on controller (9) Between the control terminal of mechanism (7).

2. control system of actuating mechanism according to claim 1, which is characterized in that

Standby control circuit further includes reset button (2)；

The reset button (2) is normally opened button, is connected in parallel on normally opened contact (12) both ends of spare control relay.

3. control system of actuating mechanism according to claim 1, which is characterized in that

The cycle T 1 of period 1 pulse signal is 260ms~340ms, and the setting time T0 is 360ms~440ms, described The cycle T 2 of second round pulse signal is 500ms or more.

4. control system of actuating mechanism according to claim 1, which is characterized in that

The executing agency is power switch tube or relay.

5. control system of actuating mechanism according to claim 4, which is characterized in that

The executing agency is connect in the safety return circuit of elevator or is connect in the carriage driving circuit of elevator.

6. control system of actuating mechanism according to claim 1, which is characterized in that

The executing agency (7) is solenoid valve.

7. control system of actuating mechanism according to claim 6, which is characterized in that

The solenoid valve connects in the fuel supply circuit of gas turbine, is used as fuel shut-off valve.

8. control system of actuating mechanism according to claim 1, which is characterized in that

The standby control circuit further includes local scram button (81)；

The local scram button (81) is the same as the coil (11) of spare control relay, the normally opened contact of spare control relay (12) and the contact of delay release relay (3) is serially connected between control power supply (5) positive and negative terminal.

9. control system of actuating mechanism according to claim 8, which is characterized in that

The local scram button (81), delay release relay (3), reset button (2), spare control relay are installed in In local control panel.

10. control system of actuating mechanism according to claim 1, which is characterized in that

The standby control circuit further includes long-range scram button (82)；

The long-range scram button (82) is the same as local scram button (81), the coil (11) of spare control relay, spare control The normally opened contact (12) of relay and the contact of delay release relay (3) are serially connected between control power supply (5) positive and negative terminal.

11. control system of actuating mechanism according to claim 10, which is characterized in that

The long-range scram button (82) is mounted on remote control room.

12. control system of actuating mechanism according to claim 8, which is characterized in that

The standby control circuit further includes temperature Redundanter schalter (83)；

The temperature Redundanter schalter (83) is normally closed switch, is disconnected when the temperature of designated position is greater than set temperature；

The temperature Redundanter schalter (83) is the same as local scram button (81), the coil (11) of spare control relay, spare control The normally opened contact (12) of relay and the contact of delay release relay (3) are serially connected between control power supply (5) positive and negative terminal.

13. control system of actuating mechanism according to claim 8, which is characterized in that

The executing agency connects in the carriage driving circuit of elevator；

The standby control circuit further includes revolving speed Redundanter schalter (84)；

The revolving speed Redundanter schalter (84) is normally closed switch, is disconnected when the revolving speed of lift car traction machine is greater than setting speed；

The revolving speed Redundanter schalter (84) is the same as local scram button (81), the coil (11) of spare control relay, spare control The normally opened contact (12) of relay and the contact of delay release relay (3) are serially connected between control power supply (5) positive and negative terminal.

14. control system of actuating mechanism according to claim 8, which is characterized in that

The executing agency connects in the fuel supply circuit of gas turbine；

The standby control circuit further includes flow velocity Redundanter schalter；

The flow velocity Redundanter schalter is normally closed switch, is disconnected when the fuel flow rate in fuel supply circuit exceeds setting range；

The flow velocity Redundanter schalter is the same as local scram button (81), the coil (11) of spare control relay, spare control relay The normally opened contact (12) of device and the contact of delay release relay (3) are serially connected between control power supply (5) positive and negative terminal.

Technical field

The present invention relates to automated control technology, in particular to a kind of control system of actuating mechanism.

Background technique

With the development of automatic technology, programmable controller is widely used to industrial control field.Although can compile Cyclelog feasibility with higher, but the occasion high in some safety requirements, such as large rotating machinery equipment, transport Equipment, generating equipment etc. may make equipment out of control if programmable controller breaks down, and equipment loss is caused even to be made At personal safety accident.

As elevator is using more more and more universal, since safety accident is also more and more caused by lift facility failure, electricity Terraced functional safety is gradually taken seriously.The security system of elevator is to realize security control using electrical safety chain, the theft-resistant link chain It is the safety return circuit for being cascaded by safety switch and relay and being formed, any safety switch movement, theft-resistant link chain all will It disconnects, to forbid the operation of driver and brake (brake keeps band-type brake state).Safety switch in above-mentioned theft-resistant link chain It is distributed in each position of elevator, some are in computer room, such as host emergency stop switch, control cabinet emergency stop switch, hall door door lock, limiter of speed electricity Air cock etc.；Some are in carriage, such as car door lock, car top emergency stop switch；Some are in hoistway, pit etc..

With the development of society, the emergency power generation of gas turbine has been widely applied to the every field of industry.Control The system of gas-turbine installation safe operation, usually by sensing element (or measuring cell), intermediate amplifier and executing agency Deng composition.Whether there is feedback loop by control loop, open-loop control system and closed-loop control system can be divided into；By element work Mechanical control system, mechanical-hydraulic formula control system and electrical-fluid pressure type control system can be divided by making principle.They are all Using fuel oil as intermediary is adjusted, the control to engine behavior is realized by changing amount of fuel, keeps it no matter extraneous big How controlled atmosphere section changes, and engine operates in stall margin always with the right side, and maximum T3 temperature limiting line is hereinafter, maximum (top) speed is run Line is in security operation zone more than left and flame-out restraining line.Entire control process is all automatically performed by controller.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of control system of actuating mechanism, the failure shapes of energy monitoring controller State, and control of the controller to executing agency can be cut off immediately in controller failure.

In order to solve the above technical problems, control system of actuating mechanism provided by the invention comprising controller 9 and spare control Circuit processed；

The controller 9 has pulse signal output end and master signal output end；

The controller 9, when its normal work, pulse signal output end exports period 1 pulse signal；When it When failure, pulse signal output end exports second round pulse signal or output low level；

Standby control circuit includes spare control relay and delay release relay 3；

The coil 11 of spare control relay, the normally opened contact 12 of spare control relay and the release relay 3 that is delayed Contact is serially connected between control 5 positive and negative terminal of power supply；

The delay release relay 3, contact be normally opened contact, when its control terminal be high level when its contact closure, When its control terminal becomes low level from high level, its contact is disconnected after delaying setting time T0；

The control of the delay release relay 3 terminates the pulse signal output end of the controller；

The cycle T 1 of the period 1 pulse signal is less than the setting time T0, the second round pulse signal Cycle T 2 is greater than the setting time T0；

The normally opened contact 12 of the spare control relay and the same execution of master signal output end for being connected on controller 9 Between the control terminal of mechanism 7.

Preferably, standby control circuit further includes reset button 2；

The reset button 2 is normally opened button, is connected in parallel on 12 both ends of normally opened contact of spare control relay.

Preferably, the cycle T 1 of period 1 pulse signal be 260ms~340ms, the setting time T0 be 360ms~ 440ms, the cycle T 2 of the second round pulse signal are 500ms or more.

Preferably, the executing agency is power switch tube or relay.

Preferably, the executing agency is connect in the safety return circuit of elevator or is connect in the carriage driving circuit of elevator.

Preferably, the executing agency 7 is solenoid valve.

Preferably, the solenoid valve connects in the fuel supply circuit of gas turbine, it is used as fuel shut-off valve.

Preferably, the standby control circuit further includes local scram button 81；

The local scram button 81 is the same as the coil 11 of spare control relay, the normally opened contact 12 of spare control relay And the contact of delay release relay 3 is serially connected between control 5 positive and negative terminal of power supply.

Preferably, the local scram button 81, delay release relay 3, reset button 2, spare control relay are equal It is mounted in local control panel.

Preferably, the standby control circuit further includes long-range scram button 82；

The long-range scram button 82 with local scram button 81, the coil 11 of spare control relay, spare control after The contact of the normally opened contact 12 of electric appliance and the release relay 3 that is delayed is serially connected between control 5 positive and negative terminal of power supply.

Preferably, the long-range scram button 82 is mounted on remote control room.

Preferably, the standby control circuit further includes temperature Redundanter schalter 83；

The temperature Redundanter schalter 83 is normally closed switch, is disconnected when the temperature of designated position is greater than set temperature；

The temperature Redundanter schalter 83 with local scram button 81, the coil 11 of spare control relay, spare control after The contact of the normally opened contact 12 of electric appliance and the release relay 3 that is delayed is serially connected between control 5 positive and negative terminal of power supply.

Preferably, the executing agency connects in the carriage driving circuit of elevator；

The standby control circuit further includes revolving speed Redundanter schalter 84；

The revolving speed Redundanter schalter 84 is normally closed switch, disconnected when the revolving speed of lift car traction machine is greater than setting speed It opens；

The revolving speed Redundanter schalter 84 with local scram button 81, the coil 11 of spare control relay, spare control after The contact of the normally opened contact 12 of electric appliance and the release relay 3 that is delayed is serially connected between control 5 positive and negative terminal of power supply.

Preferably, the executing agency connects in the fuel supply circuit of gas turbine；

The standby control circuit further includes flow velocity Redundanter schalter；

The flow velocity Redundanter schalter is normally closed switch, disconnected when the fuel flow rate in fuel supply circuit exceeds setting range It opens；

The flow velocity Redundanter schalter is the same as local scram button 81, the coil 11 of spare control relay, spare control relay The contact of the normally opened contact 12 of device and the release relay 3 that is delayed is serially connected between control 5 positive and negative terminal of power supply.；

Control system of actuating mechanism of the invention can be to the control of delay release relay 3 when controller 9 works normally End sends period 1 pulse signal, delays breaking since the cycle T 1 of period 1 pulse signal is less than delay release relay 3 The T0 that fixes time is opened up, in this way when controller 9 operates normally, the normally opened contact of delay release relay 3 can keep attracting state； When 9 failure of controller, due to its pulse signal output end output the period greater than setting time T0 second round pulse signal or Person exports low level, and the normally opened contact of delay release relay 3 disconnects, to reach what whether monitor controller 9 broke down Purpose；Since the normally opened contact of delay release relay 3 disconnects, the coil 11 of spare control relay understands power loss and makes spare control The contact of relay processed disconnects, thus disconnect the master signal output end of controller 9 with the control terminal of executing agency, Ke Yili That is control of the cutting controller 9 to executing agency 7.As it can be seen that the control system of actuating mechanism can be with the failure shape of monitoring controller 9 State, and control of the controller 9 to executing agency 7 can be cut off immediately in 9 failure of controller.

Detailed description of the invention

In order to illustrate more clearly of technical solution of the present invention, the required attached drawing of the present invention is made below simple It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the circuit diagram of one embodiment of control system of actuating mechanism of the invention；

Fig. 2 is the circuit diagram of the standby control circuit of one embodiment of control system of actuating mechanism of the invention.

Description of symbols

9 controllers；2 reset button；3 delay release relays；The coil of 11 spare control relays；12 it is spare control after The normally opened contact of electric appliance；5 control power supplys；7 executing agencies；81 local scram buttons；82 long-range scram buttons；83 temperature redundancies are opened It closes；84 revolving speed Redundanter schalters.

Specific embodiment

Below in conjunction with attached drawing, clear, complete description is carried out to the technical solution in the present invention, it is clear that described Embodiment is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general Logical technical staff all other embodiment obtained without making creative work, belongs to protection of the present invention Range.