CN107763116A - Ratchet of clutch, ratchet separation test system and its method of testing when gas turbine starts - Google Patents

Ratchet of clutch, ratchet separation test system and its method of testing when gas turbine starts Download PDF

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Publication number
CN107763116A
CN107763116A CN201711184126.9A CN201711184126A CN107763116A CN 107763116 A CN107763116 A CN 107763116A CN 201711184126 A CN201711184126 A CN 201711184126A CN 107763116 A CN107763116 A CN 107763116A
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CN
China
Prior art keywords
ratchet
clutch
state
rotating speed
signal
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Application number
CN201711184126.9A
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Chinese (zh)
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CN107763116B (en
Inventor
夏光
杨猛
张洋
高军
郑友
闫瑞琦
郭东云
滑杨莹
汪韶杰
孙保群
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Hefei University of Technology
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Hefei University of Technology
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Priority to CN201711184126.9A priority Critical patent/CN107763116B/en
Publication of CN107763116A publication Critical patent/CN107763116A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/064—Control of electrically or electromagnetically actuated clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10443—Clutch type
    • F16D2500/10462—Dog-type clutch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/11—Application
    • F16D2500/1107—Vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3041—Signal inputs from the clutch from the input shaft
    • F16D2500/30415—Speed of the input shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3042—Signal inputs from the clutch from the output shaft
    • F16D2500/30426—Speed of the output shaft

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Turbines (AREA)

Abstract

The present invention discloses ratchet of clutch when a kind of gas turbine starts, ratchet separation test system and its method of testing, including sensor assembly, Signal-regulated kinase, fixed reception module, servo-actuated wireless transmitter module and ratchet, ratchet released state judge module；Signal-regulated kinase includes frequency signal conditioning module and switching signal conditioning module；By carrying out signal condition and collection acquisition ratchet, ratchet released state judge module desired signal to sensor signal, enter rows ratchet, ratchet released state judges.The present invention can effectively identify gas turbine starting clutch ratchet, ratchet separation and engagement state, provide starting control foundation for the smooth starting of gas turbine, while also provide basis for estimation for the reliability and service life judgement of gas turbine starting clutch.

Description

Ratchet of clutch, ratchet separation test system and its test when gas turbine starts Method
Technical field
The invention belongs to for ratchet of clutch, ratchet separation technical field of measurement and test, specifically a kind of gas turbine Starting clutch ratchet, ratchet separation test system and its method of testing.
Background technology
Need to provide by starting device when gas turbine starts and start power, by starting motor with rotation, treat combustion gas After turbine accelerates to steady-working state, separation clutch, which just interrupts, starts motor power, and starting device just disengages, gas turbine Engine starting system transmission sketch is as shown in Figure 1.
When starting gas turbine, after the power for starting motor input is carried out rotating speed, torque transfer by starting casing, through clutch Device is delivered to the rotation of gas turbine drives combustion gas wheel shaft；Start ignition start when combustion gas wheel shaft reaches starting speed, with turn Speed rise, it is necessary to separate clutch to interrupt motor power when gas turbine enters steady-working state, and clutch separation turns Speed needs to be strict controlled in certain range of speeds, can be with stable operation to ensure that gas turbine is completed to start.
Power transmission in starting system realized with separating clutch by three pairs of ratchets, ratchet, all ratchets all with When separating just the transmission of starting motor power can interrupted ratchet completely；It is required that when not up to separation lower rotation speed limit, any ratchet is not Obtain and separated with ratchet, the number of pawls reduction of participation transmission, stress can otherwise rapidly deteriorated and even results in failure, seriously Influence the functional reliability of clutch；Equally, during the separation rotating speed upper limit is ramped up by separation lower rotation speed limit, institute There is ratchet to be totally separated, be otherwise more than ratchet rotating speed in hub shell rotating speed, can cause the frequent ricochet of ratchet and with the ratchet gear teeth Friction, have a strong impact on the service life of clutch；Therefore, it is necessary to by being surveyed to the released state of ratchet of clutch, ratchet Examination, to ensure its Performance And Reliability.
China's most gas steam turbine starting system is tested the working condition of ratchet, ratchet at present and record typically passes through Artificial observation, this artificial behavior differentiated, judged often produce larger error, and the infringement to clutch is also very big.
The content of the invention
The present invention is to avoid the weak point present in above-mentioned prior art, there is provided clutch when a kind of gas turbine starts Ratchet, ratchet separation test system and its method of testing, to can effectively identify gas turbine starting clutch ratchet, ratchet point From with engagement state, provide starting control foundation for the smooth starting of gas turbine, while be also gas turbine starting clutch Ratchet, the joint reliability of ratchet, cleanliness of disengagement and service life provide basis for estimation.
The present invention adopts the following technical scheme that to solve technical problem：
Include when a kind of gas turbine of the present invention starts the characteristics of ratchet of clutch, ratchet separation test system：Sensor Module, Signal-regulated kinase, fixed reception module, servo-actuated wireless transmitter module and ratchet, ratchet released state judge module；
The Signal-regulated kinase includes：Frequency signal conditioning module and switching signal conditioning module；
The sensor assembly includes：Input shaft rotating speed sensor, OSS, clutch ratchet I switch Sensor, the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III；
The sensor assembly gathers the status signal of clutch when gas turbine starts and is sent to the signal condition Module；
The frequency that the frequency signal conditioning module exports to the input shaft rotating speed sensor and OSS Rate signal is amplified, filter and compare processing after, obtain input shaft rotating speed signal and output shaft tach signal and send to institute State fixed reception module；
The switching signal conditioning module is to the switch sensor of clutch ratchet I, the switch sensing of clutch ratchet II After device and the switching signal of the switch sensor of clutch ratchet III output carry out isolation and amplitude limiting processing, clutch ratchet I is obtained Switching signal, the switching signal of clutch ratchet II and the switching signal of clutch ratchet III are simultaneously sent to servo-actuated wireless transmitter module；
The fixed reception module carries out capture collection to the input shaft rotating speed signal and output shaft tach signal, obtains The frequency of input shaft rotating speed signal and output shaft tach signal, and passed according to the input shaft rotating speed sensor and output rotating speed After the number of teeth of the gear of sensor test obtains the input shaft rotating speed and output rotating speed of clutch, send to the ratchet, ratchet Released state judge module；
The servo-actuated wireless transmitter module to the switching signal of clutch ratchet I, the switching signal of clutch ratchet II and The switching signal of clutch ratchet III carries out I/O collections, obtains the on off state of clutch ratchet I, the on off state of clutch ratchet II After the on off state of clutch ratchet III, send to the ratchet, ratchet released state judge module；
The ratchet, ratchet released state judge module are opened the on off state of clutch ratchet I, clutch ratchet II Off status and the on off state of clutch ratchet III carry out logic judgment, obtain ratchet of clutch, the preliminary clutch state of ratchet, and root Ratchet of clutch, ratchet essence clutch state are determined according to the input shaft rotating speed and output rotating speed of clutch；
The preliminary clutch state of the ratchet of clutch, ratchet includes：Initial gross separation state and initial engagement；It is described first It is open mode that step released state, which refers to clutch ratchet I, clutch ratchet II and clutch ratchet III,；The preliminary joint shape State, which refers to, one in clutch ratchet I, clutch ratchet II and the three of clutch ratchet III and above ratchet is closed mode；
The ratchet of clutch, ratchet essence clutch state include：Substantive released state and substantive engagement state；The reality Matter released state refers to ratchet of clutch, ratchet name clutch state is initial gross separation state, and the input shaft rotating speed of clutch is small In output rotating speed；The substantive engagement state refers to ratchet of clutch, ratchet name clutch state is initial engagement, and from The Clutch input shaft rotating speed of clutch is more than or equal to output rotating speed.
The characteristics of ratchet of clutch, ratchet separate method of testing when a kind of gas turbine of the present invention starts is as follows Carry out：
Step 1, install input shaft rotating speed sensor, output shaft revolution speed sensing additional respectively in the input, output end of clutch Device, the switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II and clutch are installed respectively on the ratchet of clutch The cathode contact of the switch sensor of device ratchet III；Installed respectively on the ratchet of clutch the switch sensor of clutch ratchet I, from The cathode contact of the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III；
The input shaft rotating speed sensor and OSS when step 2, acquisition gas turbine starting clutch The frequency signal of output, and after being amplified, filtering and compare processing, obtain input shaft rotating speed signal and output rotating speed letter Number；
The switch sensor of clutch ratchet I, the switch of clutch ratchet II pass when obtaining gas turbine starting clutch Sensor and the switching signal of the switch sensor of clutch ratchet III output, and isolation is carried out with after amplitude limiting processing, obtain clutch The switching signal of ratchet I, the switching signal of clutch ratchet II and the switching signal of clutch ratchet III；
Step 3, to the input shaft rotating speed signal, output shaft tach signal, the switching signal of clutch ratchet I, clutch The switching signal of ratchet II and the switching signal of clutch ratchet III are acquired processing, obtain input shaft rotating speed, the output of clutch Rotating speed, the on off state of clutch ratchet I, the on off state of clutch ratchet II and the on off state of clutch ratchet III；
Step 4, the on off state of clutch ratchet I, the on off state of clutch ratchet II and the clutch ratchet III are opened Off status carries out logic judgment, obtains ratchet of clutch, the preliminary clutch state of ratchet；
Step 5, obtained according to the input shaft rotating speed of the clutch and output rotating speed ratchet of clutch, ratchet essence from Conjunction state.
Lain also in when gas turbine of the present invention starts the characteristics of ratchet of clutch, ratchet separation method of testing：
The step 4 is to carry out according to the following procedure：
Step 4.1, judge whether the on off state of clutch ratchet I is 1, if, then it represents that the clutch ratchet I is to beat Open state, and perform step 4.2；Otherwise, step 4.5 is performed；
Step 4.2, judge whether the on off state of clutch ratchet II is 1, if, then it represents that the clutch ratchet II is Open mode, and perform step 4.3；Otherwise, step 4.5 is performed；
Step 4.3, judge whether the on off state of clutch ratchet III is 1, if, then it represents that the clutch ratchet III is Open mode, and perform step 4.4；Otherwise, step 4.5 is performed；
Step 4.4, ratchet of clutch, ratchet name clutch state are initial gross separation state；
Step 4.5, ratchet of clutch, ratchet name clutch state are initial engagement.
The step 5 is to carry out according to the following procedure：
Step 5.1, judge whether the ratchet of clutch, ratchet name clutch state are initial gross separation state, if so, then Perform step 5.2；Otherwise, step 5.3 is performed；
Step 5.2, judge whether the input shaft rotating speed of the clutch is less than the output rotating speed of clutch, if being less than, Then ratchet of clutch, ratchet essence clutch state are substantive released state；Otherwise, logic judgment is exited；
Step 5.3, judge whether the input shaft rotating speed of the clutch is more than or equal to the output rotating speed of clutch, if Set up, then ratchet of clutch, ratchet essence clutch state are substantive engagement state；Otherwise, logic judgment is exited.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1st, the present invention has taken into full account polytropy and the complexity of vehicle driving-cycle and driving intention, it is proposed that one kind combustion Gas-turbine starting clutch ratchet, ratchet separation test system and its method of testing, the ratchet for avoid artificial observation, judging with The error of ratchet working condition method, enter rows ratchet, the judgement of ratchet released state by installing sensor additional, combustion gas can be accurately identified Turbine starting clutch ratchet, ratchet separation and engagement state, provide starting control foundation, together for the smooth starting of gas turbine When also judge to provide basis for estimation for reliability and the service life of gas turbine starting clutch.
2nd, servo-actuated wireless transmitter module involved in the present invention by the way of radio communication by the pawl casing after conditioning Sensor signal transmits the validity and reliability for clutch separation and engagement state judge module, improving information transfer, Reduce information transfer time delay, effectively eliminate artificial observation caused by drawback, improve starting clutch ratchet, ratchet The degree of accuracy of separation and engagement state test.
4th, starting clutch ratchet involved in the present invention, ratchet separation test system are used and added respectively at clutch both ends The mode of input shaft and OSS is filled, can accurately judge real-time turn that clutch three separates to ratchet with ratchet Speed, not only judges the released state of ratchet of clutch and ratchet, and can obtain the priority that clutch three separates to ratchet with ratchet Order, also provide basis for estimation for the reliability and service life judgement of gas turbine starting clutch.
Brief description of the drawings
Fig. 1 is that gas turbine engine starting system of the present invention is driven sketch；
Fig. 2 is present system structure application schematic diagram；
Fig. 3 is the switch sensor structural representation of clutch ratchet I of present system.
Embodiment
In the present embodiment, ratchet of clutch, ratchet separation test system, are by sensing when a kind of gas turbine starts Device signal carries out signal condition and collection obtains ratchet, ratchet released state judge module desired signal, enters rows ratchet, ratchet point From condition adjudgement.
Specifically, ratchet of clutch, ratchet separation test system, are to be applied to combustion gas wheel when a kind of gas turbine starts Need to provide by starting device in the starting system of machine, when gas turbine starts and start power, by starting motor with rotation, After gas turbine accelerates to steady-working state, i.e., when clutch rotational speed reaches certain rotating speed, gas turbine ignition start Stable operation, separation clutch, which just interrupts, starts motor power, and starting device just disengages, and the power transmission in starting system is with dividing From being realized by the clutch that is made up of three pairs of clicks.
Refering to Fig. 2, ratchet of clutch, ratchet separation test system include：Sensor assembly, Signal-regulated kinase, fixation Receiving module, servo-actuated wireless transmitter module and ratchet, ratchet released state judge module；
Signal-regulated kinase includes：Frequency signal conditioning module and switching signal conditioning module；
Sensor assembly includes：Input shaft rotating speed sensor, OSS, the switch sensing of clutch ratchet I Device, the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III；Input shaft rotating speed sensor and output shaft turn Fast sensor optional power taking magnetic-type, photo-electric and Hall-type, consider sensor output signal accuracy and cost, input shaft and output Shaft speed transducer is chosen for hall-effect speed sensor, and is separately mounted to the input and output end of clutch；Clutch The switch sensor of ratchet I, the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III can be chosen for electric potential type, Hall-type, the switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III Cathode contact is separately mounted on the ratchet of clutch, the switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II It is separately mounted to the cathode contact of the switch sensor of clutch ratchet III on the ratchet of clutch；
Sensor assembly gathers the status signal of clutch when gas turbine starts and is sent to Signal-regulated kinase；
The frequency signal that frequency signal conditioning module exports to input shaft rotating speed sensor and OSS enters Row amplification, after filtering and comparing processing, obtain input shaft rotating speed signal and output shaft tach signal and send to fixed reception mould Block；
Switching signal conditioning module is to the switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II and clutch After the switching signal of the switch sensor of device ratchet III output carries out isolation and amplitude limiting processing, the switching signal of acquisition clutch ratchet I, The switching signal of clutch ratchet II and the switching signal of clutch ratchet III are simultaneously sent to servo-actuated wireless transmitter module；
Fixed reception module carries out capture collection to input shaft rotating speed signal and output shaft tach signal, obtains input shaft and turns The frequency of fast signal and output shaft tach signal, and the tooth tested according to input shaft rotating speed sensor and OSS After the number of teeth of wheel obtains the input shaft rotating speed and output rotating speed of clutch, send to ratchet, ratchet released state judge module；
Servo-actuated wireless transmitter module is to the switching signal of clutch ratchet I, the switching signal of clutch ratchet II and clutch spine The switching signal of pawl III carries out I/O collections, obtains the on off state of clutch ratchet I, the on off state of clutch ratchet II and clutch After the on off state of ratchet III, send to ratchet, ratchet released state judge module；
Servo-actuated wireless transmitter module is mainly by MCU control unit, data acquisition unit, system timing unit, radio communication Unit forms with LED display unit, and its major function is that the separation signal of three ratchets is gathered by data acquisition unit, simultaneously The accurate timing of Millisecond is carried out by system timing unit, when collecting ratchet separation signal, transmitter module is by ratchet sequence number Packet, which is combined into, with the relative time of timer and is sent in real time by radio frequency communications unit to ratchet, ratchet released state sentences Disconnected module；
Ratchet, ratchet released state judge module mainly by MCU control unit, rotating speed collecting unit, radio frequency communications unit, LCD display unit, LED display unit and host computer communication unit form, and its major function includes connecing by radio frequency communications unit The packet that servo-actuated wireless transmitter module is sent is received, the information such as ratchet sequence number and relative time is extracted, is lighted according to ratchet sequence number Corresponding LED has been received by identify corresponding packet；The input of the clutch sent simultaneously by receiving fixed reception module Rotating speed and output rotating speed, are opened the on off state of clutch ratchet I, the on off state of clutch ratchet II and clutch ratchet III Off status carries out logic judgment, obtains ratchet of clutch, the preliminary clutch state of ratchet, and according to the input shaft rotating speed of clutch and Output rotating speed determines ratchet of clutch, ratchet essence clutch state；And the separation shape of three pairs of ratchets, ratchet is shown by LCD State information；Finally, all information is sent to host computer by serial ports；
The preliminary clutch state of ratchet of clutch, ratchet includes：Initial gross separation state and initial engagement；Initial gross separation shape It is open mode that state, which refers to clutch ratchet I, clutch ratchet II and clutch ratchet III,；Initial engagement refers to clutch spine There is one in pawl I, clutch ratchet II and the three of clutch ratchet III and above ratchet is closed mode；
Ratchet of clutch, ratchet essence clutch state include：Substantive released state and substantive engagement state；Essence separation shape State refers to ratchet of clutch, ratchet name clutch state is initial gross separation state, and the input shaft rotating speed of clutch is less than output shaft Rotating speed；Substantive engagement state refers to ratchet of clutch, ratchet name clutch state is initial engagement, and the input shaft of clutch Rotating speed is more than or equal to output rotating speed.
In the present embodiment, ratchet of clutch, ratchet separation method of testing are as follows when a kind of gas turbine starts Carry out：
Step 1, install input shaft rotating speed sensor, output shaft revolution speed sensing additional respectively in the input, output end of clutch Device, the switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II and clutch are installed respectively on the ratchet of clutch The cathode contact of the switch sensor of device ratchet III；Installed respectively on the ratchet of clutch the switch sensor of clutch ratchet I, from The cathode contact of the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III；
Input shaft rotating speed sensor and OSS output when step 2, acquisition gas turbine starting clutch Frequency signal, and after being amplified, filtering and compare processing, obtain input shaft rotating speed signal and output shaft tach signal；
The switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II when obtaining gas turbine starting clutch The switching signal exported with the switch sensor of clutch ratchet III, and isolation is carried out with after amplitude limiting processing, obtain clutch ratchet I Switching signal, the switching signal of clutch ratchet II and the switching signal of clutch ratchet III；
Step 3, to input shaft rotating speed signal, output shaft tach signal, the switching signal of clutch ratchet I, clutch ratchet II switching signal and the switching signal of clutch ratchet III are acquired processing, obtain the input shaft rotating speed of clutch, output shaft turns Speed, the on off state of clutch ratchet I, the on off state of clutch ratchet II and the on off state of clutch ratchet III；
Step 4, shape is switched to the on off state of clutch ratchet I, the on off state of clutch ratchet II and clutch ratchet III State carries out logic judgment, when the on off state of clutch ratchet I, clutch ratchet II and clutch ratchet III is open mode When, ratchet, the ratchet of clutch are in initial gross separation state；When clutch ratchet I, clutch ratchet II and clutch ratchet III On off state when being closed mode, ratchet, the ratchet of clutch are in initial engagement；Also need to according to clutch volume The size of input shaft rotating speed and output rotating speed is judged, to obtain ratchet of clutch, ratchet essence clutch state, is specifically Carry out as follows：
Step 4.1, judge whether the on off state of clutch ratchet I is 1, if, then it represents that clutch ratchet I is open shape State, and perform step 4.2；Otherwise, step 4.5 is performed；
Step 4.2, judge whether the on off state of clutch ratchet II is 1, if, then it represents that clutch ratchet II is opening State, and perform step 4.3；Otherwise, step 4.5 is performed；
Step 4.3, judge whether the on off state of clutch ratchet III is 1, if, then it represents that clutch ratchet III is opening State, and perform step 4.4；Otherwise, step 4.5 is performed；
Step 4.4, ratchet of clutch, ratchet name clutch state are initial gross separation state；
Step 4.5, ratchet of clutch, ratchet name clutch state are initial engagement.
Step 5, input shaft rotating speed and output rotating speed acquisition ratchet of clutch, ratchet essence clutch shape according to clutch State, specifically carry out as follows：
Step 5.1, judge whether ratchet of clutch, ratchet name clutch state are initial gross separation state, if so, then performing Step 5.2；Otherwise, step 5.3 is performed；
Step 5.2, judge whether the input shaft rotating speed of clutch is less than the output rotating speed of clutch, if being less than, from Clutch ratchet, ratchet essence clutch state are substantive released state；Otherwise, logic judgment is exited；
Step 5.3, judge whether the input shaft rotating speed of clutch is more than or equal to the output rotating speed of clutch, if into Vertical, then ratchet of clutch, ratchet essence clutch state are substantive engagement state；Otherwise, logic judgment is exited.
Embodiment：The ratchet of clutch of the present invention, ratchet separation method of testing are applied to certain type gas turbine and start system On system, steady operation rotating speed when certain type gas turbine starts is to 3160~3360r/min, it is necessary to be provided by starting device Power is started, by starting motor with rotation, after gas turbine accelerates to steady-working state, i.e., clutch rotational speed reaches During 3160~3360r/min, separation clutch, which just interrupts, starts motor power, and starting device just disengages.
In specific implementation, certain type gas turbine starting clutch ratchet, ratchet point are carried out according to the method for testing of the present invention It is specific as follows from state verification：
(1) input shaft rotating speed sensor, OSS, are installed additional respectively in the input, output end of clutch, The switch sensor of clutch ratchet I in the present embodiment uses design as shown in Figure 3, specific as follows：First, by the ground of system Line GND is connected with equipment, because the plant equipment such as clutch are all hardwares, belongs to electric conductor, therefore be all total to system Ground, simultaneously because ratchet, ratchet belong to a part for clutch, also with system altogether.Secondly, respectively after being separated in ratchet Three insulating trips are placed in the position contacted with clutch, and a sheet metal is placed on insulating trip, and the sheet metal connects through enamel-covered wire It is connected to the signal input part of data acquisition module.Its design drawing is as shown in the figure.Signal input part level is defaulted as high level or outstanding Dummy status, when ratchet because the effect of centrifugal force flies out and after contacted with sheet metal, the level of sheet metal will be dragged down, so as to Realize the purpose of detection ratchet separation signal；
(2), obtain current time Clutch input shaft tach signal and output shaft tach signal, clutch ratchet I switch Signal, the switching signal of clutch ratchet II and the switching signal of clutch ratchet III；
(3), to input shaft rotating speed signal, output shaft tach signal, the switching signal of clutch ratchet I, clutch ratchet II Switching signal and the switching signal of clutch ratchet III are acquired processing, obtain input shaft rotating speed, the output rotating speed of clutch Respectively 3300r/min, 3400r/min；Obtain the on off state of clutch ratchet I, the on off state of clutch ratchet II and clutch The on off state of device ratchet III is respectively 1,1 and 1；
(4), to the on off state of clutch ratchet I, the on off state of clutch ratchet II and the on off state of clutch ratchet III Logic judgment is carried out, when the on off state of clutch ratchet I, clutch ratchet II and clutch ratchet III is open mode When, ratchet, the ratchet of clutch are in initial gross separation state；Also need to according to clutch volume input shaft rotating speed and output rotating speed Size judged, to obtain the preliminary clutch state of ratchet of clutch, ratchet；
(5), according to above-mentioned calculating, ratchet of clutch, ratchet name clutch state are initial gross separation state, and clutch Input shaft rotating speed is 3300r/min, less than the output rotating speed 3400r/min of clutch, ratchet of clutch, ratchet essence clutch State is substantive released state.
So far, ratchet of clutch, the ratchet separation test process of certain type gas turbine starting system are completed.

Claims (4)

  1. Ratchet of clutch, ratchet separation test system, its feature include when 1. a kind of gas turbine starts：Sensor assembly, letter Number conditioning module, fixed reception module, servo-actuated wireless transmitter module and ratchet, ratchet released state judge module；
    The Signal-regulated kinase includes：Frequency signal conditioning module and switching signal conditioning module；
    The sensor assembly includes：Input shaft rotating speed sensor, OSS, the switch sensing of clutch ratchet I Device, the switch sensor of clutch ratchet II and the switch sensor of clutch ratchet III；
    The sensor assembly gathers the status signal of clutch when gas turbine starts and is sent to the Signal-regulated kinase；
    The frequency that the frequency signal conditioning module exports to the input shaft rotating speed sensor and OSS is believed After number being amplified, filtering and compare processing, obtain input shaft rotating speed signal and output shaft tach signal and send to described solid Determine receiving module；
    The switching signal conditioning module to the switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II and After the switching signal of the switch sensor of clutch ratchet III output carries out isolation and amplitude limiting processing, obtain clutch ratchet I and switch Signal, the switching signal of clutch ratchet II and the switching signal of clutch ratchet III are simultaneously sent to servo-actuated wireless transmitter module；
    The fixed reception module carries out capture collection to the input shaft rotating speed signal and output shaft tach signal, is inputted The frequency of rotating speed signal and output shaft tach signal, and according to the input shaft rotating speed sensor and OSS After the number of teeth of the gear of test obtains the input shaft rotating speed and output rotating speed of clutch, send to the ratchet, ratchet separation Condition judgment module；
    The servo-actuated wireless transmitter module is to the switching signal of clutch ratchet I, the switching signal of clutch ratchet II and the clutch The switching signal of device ratchet III carries out I/O collections, obtain the on off state of clutch ratchet I, the on off state of clutch ratchet II and from After the on off state of clutch ratchet III, send to the ratchet, ratchet released state judge module；
    The ratchet, ratchet released state judge module switch shape to the on off state of clutch ratchet I, clutch ratchet II State and the on off state of clutch ratchet III carry out logic judgment, obtain ratchet of clutch, the preliminary clutch state of ratchet, and according to from The input shaft rotating speed and output rotating speed of clutch determine ratchet of clutch, ratchet essence clutch state；
    The preliminary clutch state of the ratchet of clutch, ratchet includes：Initial gross separation state and initial engagement；Described preliminary point It is open mode to refer to clutch ratchet I, clutch ratchet II and clutch ratchet III from state；The initial engagement refers to There is one in clutch ratchet I, clutch ratchet II and the three of clutch ratchet III and above ratchet is closed mode；
    The ratchet of clutch, ratchet essence clutch state include：Substantive released state and substantive engagement state；The essence point Refer to ratchet of clutch from state, ratchet name clutch state is initial gross separation state, and the input shaft rotating speed of clutch be less than it is defeated Go out rotating speed；The substantive engagement state refers to ratchet of clutch, ratchet name clutch state is initial engagement, and clutch Clutch input shaft rotating speed be more than or equal to output rotating speed.
  2. Ratchet of clutch, ratchet separation method of testing when 2. a kind of gas turbine starts, it is characterized in that carrying out as follows：
    Step 1, in the input, output end of clutch install input shaft rotating speed sensor, OSS additional respectively, The switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II and clutch spine are installed respectively on the ratchet of clutch The cathode contact of the switch sensor of pawl III；The switch sensor of clutch ratchet I, clutch are installed respectively on the ratchet of clutch The cathode contact of the switch sensor of ratchet II and the switch sensor of clutch ratchet III；
    Step 2, obtain input shaft rotating speed sensor and OSS output during gas turbine starting clutch Frequency signal, and after being amplified, filtering and compare processing, obtain input shaft rotating speed signal and output shaft tach signal；
    The switch sensor of clutch ratchet I, the switch sensor of clutch ratchet II when obtaining gas turbine starting clutch The switching signal exported with the switch sensor of clutch ratchet III, and isolation is carried out with after amplitude limiting processing, obtain clutch ratchet I Switching signal, the switching signal of clutch ratchet II and the switching signal of clutch ratchet III；
    Step 3, to the input shaft rotating speed signal, output shaft tach signal, the switching signal of clutch ratchet I, clutch ratchet II switching signal and the switching signal of clutch ratchet III are acquired processing, obtain the input shaft rotating speed of clutch, output shaft turns Speed, the on off state of clutch ratchet I, the on off state of clutch ratchet II and the on off state of clutch ratchet III；
    Step 4, shape is switched to the on off state of clutch ratchet I, the on off state of clutch ratchet II and clutch ratchet III State carries out logic judgment, obtains ratchet of clutch, the preliminary clutch state of ratchet；
    Step 5, input shaft rotating speed and output rotating speed acquisition ratchet of clutch, ratchet essence clutch shape according to the clutch State.
  3. Ratchet of clutch, ratchet separation method of testing when 3. gas turbine according to claim 2 starts, it is characterized in that institute It is to carry out according to the following procedure to state step 4：
    Step 4.1, judge whether the on off state of clutch ratchet I is 1, if, then it represents that the clutch ratchet I is open shape State, and perform step 4.2；Otherwise, step 4.5 is performed；
    Step 4.2, judge whether the on off state of clutch ratchet II is 1, if, then it represents that the clutch ratchet II is opening State, and perform step 4.3；Otherwise, step 4.5 is performed；
    Step 4.3, judge whether the on off state of clutch ratchet III is 1, if, then it represents that the clutch ratchet III is opening State, and perform step 4.4；Otherwise, step 4.5 is performed；
    Step 4.4, ratchet of clutch, ratchet name clutch state are initial gross separation state；
    Step 4.5, ratchet of clutch, ratchet name clutch state are initial engagement.
  4. 4. gas turbine starting clutch ratchet according to claim 2, ratchet separate method of testing, it is characterized in that described Step 5 is to carry out according to the following procedure：
    Step 5.1, judge whether the ratchet of clutch, ratchet name clutch state are initial gross separation state, if so, then performing Step 5.2；Otherwise, step 5.3 is performed；
    Step 5.2, judge whether the input shaft rotating speed of the clutch is less than the output rotating speed of clutch, if being less than, from Clutch ratchet, ratchet essence clutch state are substantive released state；Otherwise, logic judgment is exited；
    Step 5.3, judge whether the input shaft rotating speed of the clutch is more than or equal to the output rotating speed of clutch, if into Vertical, then ratchet of clutch, ratchet essence clutch state are substantive engagement state；Otherwise, logic judgment is exited.
CN201711184126.9A 2017-11-23 2017-11-23 Ratchet of clutch, pawl separation test macro and its test method when gas turbine starts Active CN107763116B (en)

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