CN106495043A - Derrick crane mechanism driving system safety guard and method - Google Patents
Derrick crane mechanism driving system safety guard and method Download PDFInfo
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- CN106495043A CN106495043A CN201611253106.8A CN201611253106A CN106495043A CN 106495043 A CN106495043 A CN 106495043A CN 201611253106 A CN201611253106 A CN 201611253106A CN 106495043 A CN106495043 A CN 106495043A
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- driving system
- mechanism driving
- derrick crane
- crane mechanism
- signal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
A kind of a kind of the present invention relates to derrick crane mechanism driving system safety guard, and derrick crane mechanism driving system method for security protection.The present invention carries out real-time detection, monitoring by the input to derrick crane mechanism driving system, outfan, finds the derrick crane mechanism driving system failure in time, for example；Drive shafts fracture, travelling gear damage, speed end motor rotation blockage, encoder fault, the component damage of operator input signal in speed end motor and terminal reel system of connections etc., timely automated sending cuts off the instructions such as input signal, immediately braking, operating room warning, it is to avoid cause bigger security incident and personal injury.
Description
Technical field
A kind of a kind of the present invention relates to derrick crane mechanism driving system safety guard, and derrick crane machine
Structure drive system method for security protection.
Background technology
It is well known that the various run action of derrick crane, are completed by each train of mechanism.In prior art, have
Many various safety guards and supervising device with regard to derrick crane, but much device is both for over burdening, is out of the line
The aspect such as journey or violation operation is monitored and protects.There is travelling gear in a certain mechanism driving system of derrick crane
During broken teeth, drive shafts fracture, the input and output speed serious mechanism driving system failure such as asynchronous, operator people is but only depended on
For judging and being controlled, and such failure more maximum probability is that certain a flash in mechanism's running or in running occurs
Between, operator has little time to react at all, it is impossible to makes correct effectively judgement in time and controls, causes then serious safe thing
Therefore, injure personal safety.
Content of the invention
The technical problem to be solved is：A kind of derrick crane mechanism driving system safeguard protection dress is provided
Put, and a kind of derrick crane mechanism driving system method for security protection, in derrick crane mechanism galvanization, can be right
Derrick crane mechanism driving system carries out real-time monitoring and judgement, stops in time driving when breaking down, and sends automatically system
Dynamic instruction, interrupts the improper motion of load, it is to avoid cause serious security incident.
For solving above-mentioned technical problem the technical solution adopted in the present invention it is：Derrick crane mechanism driving system safety
Protection device, including rate signal detection means, signal processing apparatus, central controller, mechanism's brake unit；Rate signal is examined
Surveying device includes low speed end speed V1 detection means and speed end speed V2 detection means, is respectively used to gather derrick crane machine
The low speed end speed V1 signal and speed end speed V2 signal of structure drive system；Rate signal detection means and signal processing apparatus
Input is electrically connected, and the outfan of signal processing apparatus is electrically connected with the signal input part of central controller；Central authorities' control
Device includes that timing unit, arithmetic element, comparing unit, performance element, the performance element of central controller are electrically connected in mechanism
Brake unit；Mechanism's brake unit includes high speed end braking device and low speed end braking device.
It is further：Also include operating run signal V0 output device, operation run signal V0 output device and signal
Processing meanss input is electrically connected.
It is further：Also include that operating room alarm device, operating room alarm device are electrically connected in central controller
Performance element.
It is further：Derrick crane mechanism driving system include reel, for drive reel angle gearing speed-reducer,
For connecting the first power transmission shaft of reel and angle gearing speed-reducer, angle gearing speed-reducer is subtracted with roller gear by second driving shaft
Fast device connection, cylinder gear speed reducer coordinate shaft coupling to be connected with frequency conversion motor by the 3rd power transmission shaft.
It is further：Central controller is provided with the first timing time T1 control units, after timing T1, by judging relation
Formula V 2 ＜ K1*V1* (1-X1) and V2 ＞ K1*V1* (1+X1) are compared judgement, and wherein V2 is derrick crane mechanism driving system
System speed end speed, V1 is derrick crane mechanism driving system low speed end speed, and K1 is to derrick crane mechanism driving system
System carries out the fixed constant that correlation computations and many experiments draw, X1 is the tolerance value for setting；
When the calculated relationship of V2 and V1 meets judgement relational expression V2 ＜ K1*V1* (1-X1), the V2 ＞ K1*V1* (1+ for setting
X1 in) during any one, the performance element of central controller sends instruction, automatically cuts off derrick crane mechanism driving system
Input signal, low speed end and speed end are braked simultaneously, if being provided with operating room alarm device, operating room automatic alarm；
When the calculated relationship of V2 and V1 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2
With V1 zeros datas, rate signal data V2 and V1 is resurveyed, treat that next timing time is arrived, compare again, judge.
It is further：Central controller is provided with the second timing time T2 control units, after timing T2, by judging relation
Formula V 2 ＜ K2*V0* (1-X2) and V2 ＞ K2*V0* (1+X2) are compared judgement, and wherein V2 is derrick crane mechanism driving system
System speed end speed, V0 is derrick crane mechanism driving system operatio run signal, and K2 is to derrick crane mechanism driving
System carries out the fixed constant that correlation computations and many experiments draw, X2 is the tolerance value for setting；
When the calculated relationship of V2 and V0 meets judgement relational expression V2 ＜ K2*V0* (1-X2), the V2 ＞ K2*V0* (1+ for setting
X2 in) during any one, the performance element of central controller sends instruction, automatically cuts off derrick crane mechanism driving system
Input signal, speed end braking, low speed end braking after several seconds of time delay, if being provided with operating room alarm device, operating room automatic alarm；
When the calculated relationship of V2 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2
With V0 zeros datas, rate signal data V2 and V0 is resurveyed, treat that next timing time is arrived, compare again, judge.
It is further：Central controller is provided with the 3rd timing time T3 control units, after timing T3, by judging relation
Formula V 1 ＜ K3*V0* (1-X3) and V1 ＞ K3*V0* (1+X3) are compared judgement, and wherein V1 is derrick crane mechanism driving system
System low speed end speed, V0 is derrick crane mechanism driving system operatio run signal, and K3 is to derrick crane mechanism driving
System carries out the fixed constant that correlation computations and many experiments draw, X3 is the tolerance value for setting；
When the calculated relationship of V1 and V0 meets judgement relational expression V1 ＜ K3*V0* (1-X3), the V1 ＞ K3*V0* (1+ for setting
X3 in) during any one, the performance element of central controller sends instruction, automatically cuts off derrick crane mechanism driving system
Input signal, speed end braking, low speed end braking after several seconds of time delay, if being provided with operating room alarm device, operating room automatic alarm；
When the calculated relationship of V1 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V1
With V0 zeros datas, rate signal data V1 and V0 is resurveyed, treat that next timing time is arrived, compare again, judge.
For derrick crane mechanism driving system method for security protection, step is：
Step one, gathers low speed end speed V1 signal and speed end speed V2 of derrick crane mechanism driving system respectively
Signal；
Step 2, the low speed end speed V1 signal of derrick crane mechanism driving system, speed end speed V2 signal are passed
Deliver to signal processing apparatus to be processed；
Step 3, by signal processing means processes after signal be sent to central controller；
Step 4, central controller (50) are provided with the first timing time T1 control units, after timing T1, by judging relation
Formula V 2 ＜ K1*V1* (1-X1) and V2 ＞ K1*V1* (1+X1) are compared judgement, and wherein V2 is derrick crane mechanism driving system
System speed end speed, V1 is derrick crane mechanism driving system low speed end speed, and K1 is to derrick crane mechanism driving system
System carries out the fixed constant that correlation computations and many experiments draw, X1 is the tolerance value for setting；
When the calculated relationship of V2 and V1 meets judgement relational expression V2 ＜ K1*V1* (1-X1), the V2 ＞ K1*V1* (1+ for setting
X1 in) during any one, the performance element of central controller sends instruction, automatically cuts off derrick crane mechanism driving system
Input signal, low speed end and speed end are braked simultaneously, if being provided with operating room alarm device, operating room automatic alarm；
When the calculated relationship of V2 and V1 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2
With V1 zeros datas, rate signal data V2 and V1 is resurveyed, treat that next timing time is arrived, compare again, judge.
It is further：
In step 2, operation run signal V0 is simultaneously transferred to signal processing apparatus and is processed；
After step 3, central controller (50) is provided with the second timing time T2 control units and the 3rd timing time T3
Control unit, after timing T2, by judging that relational expression V2 ＜ K2*V0* (1-X2) and V2 ＞ K2*V0* (1+X2) be compared judgement,
Wherein V2 is derrick crane mechanism driving system high-speed end speed, and V0 is derrick crane mechanism driving system operatio operation letter
Number, K2 is to carry out the fixed constant that correlation computations and many experiments draw to derrick crane mechanism driving system, and X2 is to set
Fixed tolerance value；
When the calculated relationship of V2 and V0 meets judgement relational expression V2 ＜ K2*V0* (1-X2), the V2 ＞ K2*V0* (1+ for setting
X2 in) during any one, the performance element of central controller sends instruction, automatically cuts off derrick crane mechanism driving system
Input signal, speed end braking, low speed end braking after several seconds of time delay, if being provided with operating room alarm device, operating room automatic alarm；
When the calculated relationship of V2 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2
With V0 zeros datas, rate signal data V2 and V0 is resurveyed, treat that next timing time is arrived, compare again, judge.
After timing T3, by judging that relational expression V1 ＜ K3*V0* (1-X3) and V1 ＞ K3*V0* (1+X3) be compared judgement,
Wherein V1 is derrick crane mechanism driving system low speed end speed, and V0 is derrick crane mechanism driving system operatio operation letter
Number, K3 is to carry out the fixed constant that correlation computations and many experiments draw to derrick crane mechanism driving system, and X3 is to set
Fixed tolerance value；
When the calculated relationship of V1 and V0 meets judgement relational expression V1 ＜ K3*V0* (1-X3), the V1 ＞ K3*V0* (1+ for setting
X3 in) during any one, the performance element of central controller sends instruction, automatically cuts off derrick crane mechanism driving system
Input signal, speed end braking, low speed end braking after several seconds of time delay, if being provided with operating room alarm device, operating room automatic alarm；
When the calculated relationship of V1 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V1
With V0 zeros datas, rate signal data V1 and V0 is resurveyed, treat that next timing time is arrived, compare again, judge.
It is further：Timing time T1 ＜ T2 ＜ T3.
The invention has the beneficial effects as follows：Carried out in real time by the input to derrick crane mechanism driving system, outfan
Detection, monitoring, find the derrick crane mechanism driving system failure, for example in time；Speed end motor and terminal reel connection structure
Drive shafts fracture in system, travelling gear damage, speed end motor rotation blockage, encoder fault, the components and parts of operator input signal
Damage etc., timely automated sending cuts off the instructions such as input signal, immediately braking, operating room warning, it is to avoid cause bigger safety
Accident and personal injury.
Description of the drawings
Fig. 1 is derrick crane mechanism driving system safety guard structural representation of the present invention；
Fig. 2 is derrick crane mechanism driving system method for security protection schematic flow sheet of the present invention；
Fig. 3 is that the preferred embodiments of the present invention derrick crane mechanism driving system and safety guard are constituted and illustrated
Figure；
Labelling in figure：10- derrick crane mechanism driving systems, 11- reels, the first power transmission shafts of 12-, the transmission of 13- angles subtract
Fast device, 14- second driving shafts, 15- cylinder gear speed reducers, the 3rd power transmission shafts of 16-, 17- shaft couplings, 18- frequency conversion motors, 20-
Rate signal detection means, 21- low speed end speed V1 detection means, 22- speed end speed V2 detection means, 30- operation operations
Signal V0 output devices, 40- signal processing apparatus, 50- central controllers, 60- mechanisms brake unit, 61- low speed end braking dress
Put, 62- high speed end braking devices, 70- operating room alarm devices.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in FIG. 1 to 3, derrick crane mechanism driving system safety guard, including rate signal detection dress
Put 20, signal processing apparatus 40, central controller 50, mechanism's brake unit 60；Rate signal detection means 20 includes low speed end
Speed V1 detection means 21 and speed end speed V2 detection means 22, are respectively used to gather derrick crane mechanism driving system 10
Low speed end speed V1 signal and speed end speed V2 signal, be respectively arranged in the derrick crane mechanism driving system during enforcement
The low speed end of system 10 and speed end；Rate signal detection means 20, operation run signal V0 output device 30 are and signal processing
40 input of device is electrically connected, and the outfan of signal processing apparatus 40 is electrically connected with the signal input part of central controller 50
Connect；Central controller 50 includes timing unit, arithmetic element, comparing unit, performance element, the performance element of central controller 50
It is electrically connected in mechanism's brake unit 60；Mechanism's brake unit 60 includes high speed end braking device 62 and low speed end braking device
61.Mechanism's brake unit 60 is used for the control instruction for receiving central controller 50, and mechanism is braked.
During enforcement, low speed end speed V1 detection means 21 and speed end speed V2 detection means 22 gather tower lifting respectively
The low speed end speed V1 signal and speed end speed V2 signal of machine mechanism driving system 10；Derrick crane mechanism driving system 10
Low speed end speed V1 signal, speed end speed V2 signal is sent to signal processing apparatus 40 and processed；Signal processing apparatus
Signal after 40 process is sent to central controller 50；Central controller 50 is provided with the first timing time T1 control units, in meter
When T1 after, by judging that relational expression V2 ＜ K1*V1* (1-X1) and V2 ＞ K1*V1* (1+X1) be compared judgement, wherein V2 is tower
10 speed end speed of formula Mechanism of crane drive system, V1 are 10 low speed end speed of derrick crane mechanism driving system, and K1 is
The fixed constant that correlation computations and many experiments draw is carried out to derrick crane mechanism driving system 10, and X1 is permitting for setting
Perhaps deviation；When the calculated relationship of V2 and V1 meets judgement relational expression V2 ＜ K1*V1* (1-X1), the V2 ＞ K1*V1* (1+ for setting
X1 in) during any one, the performance element of central controller 50 sends instruction, automatically cuts off derrick crane mechanism driving system
10 input signal, low speed end and speed end are braked simultaneously.Preferably, also include that operating room alarm device 70, operating room are reported to the police
Device 70 is electrically connected in the performance element of central controller 50.During derrick crane mechanism driving system jam, central authorities
Controller 50 sends operating room alarm command, acousto-optic report while cut-out input signal, the instruction such as braking immediately is sent automatically
Alert, operator's very first time can be pointed out to find failure, and processed in time.When the calculated relationship of V2 and V1 is unsatisfactory for setting
Judgement relational expression when, normally execute down-stream, while to V2 and V1 zeros datas, resurvey rate signal data V2 with
V1, treats that next timing time is arrived, compares again, judges.
Specifically, rate signal detection means 20 can be rotary encoder, proximity switch, photoswitch or other can be with
For surveying the sensor device of rotating speed, install at each detection at least a set of.Signal processing apparatus 40 are examined according to the rate signal
The difference of device 20 is surveyed, can be code device signal transducer, analog quantity spread module, converter or other convertible speed
The device of degree signal supervisory instrument detection signal.Central controller 50 can be PLC programmable logic controller (PLC)s, converter, control
Circuit board processed or other there is timing, computing, compare, judge and send the controller of execute instruction program function.Preferably, originally
In embodiment, rate signal detection means 20 selects rotary encoder, central controller 50 to select PLC Programmable logical controllers
Device.
Derrick crane mechanism driving system 10 can be derrick crane raising, one or more mechanism of luffing.Excellent
Selection of land, derrick crane mechanism driving system 10 include reel 11, are used for driving the angle gearing speed-reducer 13 of reel 11, are used for connecting
The first power transmission shaft 12 of reel 11 and angle gearing speed-reducer 13 is connect, angle gearing speed-reducer 13 is by second driving shaft 14 and Cylinder Gear
Wheel decelerator 15 connects, and cylinder gear speed reducer 15 coordinates shaft coupling 17 to be connected with frequency conversion motor 18 by the 3rd power transmission shaft 16.
Preferably, also include operating run signal V0 output device 30, operation run signal V0 output device 30 and signal
40 input of processing meanss is electrically connected.Correspondingly, signal processing apparatus 40 are believed to operation operation using analog quantity spread module
Number V0 is changed.
After derrick crane power supply is started, operator sends operation and speed by operating run signal V0 output device 30
Degree instruction, drives frequency conversion motor 18 to rotate after control loop, and frequency conversion motor 18 passes through 16 band of shaft coupling 17 and the 3rd power transmission shaft
Dynamic cylinder gear speed reducer 15 runs, and cylinder gear speed reducer 15 is transmitted by the power of internal gear, then is driven by second
Axle 14 drives angle gearing speed-reducer 13 to operate, and angle gearing speed-reducer 13 is rotated with movable reel 11 by the first power transmission shaft 12, realizes
The normal operation of mechanism.The speed of service of the size of operation run signal V0, corresponding change frequency conversion motor 18 and reel 11 is adjusted,
In one timing of input, export also certain.
During enforcement, central controller (50) is provided with the second timing time T2 control units, after timing T2, by judging relation
Formula V 2 ＜ K2*V0* (1-X2) and V2 ＞ K2*V0* (1+X2) are compared judgement, and wherein V2 is derrick crane mechanism driving system
Unite 10 speed end speed, V0 is that derrick crane mechanism driving system 10 operates run signal, and K2 is to derrick crane mechanism
Drive system 10 carries out the fixed constant that correlation computations and many experiments draw, X2 is the tolerance value for setting；When V2 with
Any one in judgement relational expression V2 ＜ K2*V0* (1-X2) of the calculated relationship satisfaction setting of V0, V2 ＞ K2*V0* (1+X2)
When, the performance element of central controller 50 sends instruction, automatically cut off derrick crane mechanism driving system 10 input signal,
Speed end is braked, low speed end braking after several seconds of time delay, if being provided with operating room alarm device 70, operating room automatic alarm；When V2 with
When the calculated relationship of V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2 and V0 zeros datas, weight
New picking rate signal data V2 and V0, treat that next timing time is arrived, compare again, judge.
Central controller 50 is provided with the 3rd timing time T3 control units, after timing T3, by judging relational expression V1 ＜ K3*
V0* (1-X3) and V1 ＞ K3*V0* (1+X3) are compared judgement, and wherein V1 is 10 low speed of derrick crane mechanism driving system
End speed, V0 are that derrick crane mechanism driving system 10 operates run signal, and K3 is to derrick crane mechanism driving system
10 carry out the fixed constant that correlation computations and many experiments draw, X3 is the tolerance value for setting；Calculating as V1 and V0
In judgement relational expression V1 ＜ K3*V0* (1-X3) of relation satisfaction setting, V1 ＞ K3*V0* (1+X3) during any one, central authorities' control
The performance element of device processed 50 sends instruction, automatically cuts off input signal, the speed end system of derrick crane mechanism driving system 10
Dynamic, low speed end braking after several seconds of time delay, if being provided with operating room alarm device 70, operating room automatic alarm；Calculating as V1 and V0
When relation is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V1 and V0 zeros datas, resurveying speed
Degree signal data V1 and V0, treat that next timing time is arrived, compare again, judge.
In conjunction with two kinds of multilevel iudge controls of V2 and V0, V1 and V0, can preferably to derrick crane mechanism driving system
10 input, outfan carry out real-time detection, monitoring, in time the failure of discovery derrick crane mechanism driving system 10, and and
Shi Zidong sends control instruction, it is to avoid cause bigger security incident and personal injury.
For derrick crane mechanism driving system method for security protection, preferred implementation is：
Step one, gathers low speed end speed V1 signal and the speed end speed of derrick crane mechanism driving system 10 respectively
V2 signals；
Step 2, by the low speed end speed V1 signal of derrick crane mechanism driving system 10, speed end speed V2 signal,
Operation run signal V0 is sent to signal processing apparatus 40 and is processed；
Step 3, the signal after signal processing apparatus 40 are processed are sent to central controller 50；
Step 4, central controller 50 are provided with the first timing time T1 control units, after timing T1, by judging relational expression
V2 ＜ K1*V1* (1-X1) and V2 ＞ K1*V1* (1+X1) are compared judgement, and wherein V2 is derrick crane mechanism driving system
10 speed end speed, V1 are 10 low speed end speed of derrick crane mechanism driving system, and K1 is to derrick crane mechanism driving
System 10 carries out the fixed constant that correlation computations and many experiments draw, X1 is the tolerance value for setting；
When the calculated relationship of V2 and V1 meets judgement relational expression V2 ＜ K1*V1* (1-X1), the V2 ＞ K1*V1* (1+ for setting
X1 in) during any one, the performance element of central controller 50 sends instruction, automatically cuts off derrick crane mechanism driving system
10 input signal, low speed end and speed end are braked simultaneously, if being provided with operating room alarm device 70, operating room automatic alarm；
When the calculated relationship of V2 and V1 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2
With V1 zeros datas, rate signal data V2 and V1 is resurveyed, treat that next timing time is arrived, compare again, judge.
Step 5, central controller 50 are provided with the second timing time T2 control units, after timing T2, by judging relational expression V2
＜ K2*V0* (1-X2) and V2 ＞ K2*V0* (1+X2) are compared judgement, and wherein V2 is derrick crane mechanism driving system 10
Speed end speed, V0 are that derrick crane mechanism driving system 10 operates run signal, and K2 is to derrick crane mechanism driving
System 10 carries out the fixed constant that correlation computations and many experiments draw, X2 is the tolerance value for setting；
When the calculated relationship of V2 and V0 meets judgement relational expression V2 ＜ K2*V0* (1-X2), the V2 ＞ K2*V0* (1+ for setting
X2 in) during any one, the performance element of central controller 50 sends instruction, automatically cuts off derrick crane mechanism driving system
10 input signal, speed end braking, low speed end braking after several seconds of time delay, if being provided with operating room alarm device 70, operating room from
Dynamic warning；
When the calculated relationship of V2 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2
With V0 zeros datas, rate signal data V2 and V0 is resurveyed, treat that next timing time is arrived, compare again, judge.
Step 6, central controller 50 are provided with the 3rd timing time T3 control units, after timing T3, by judging relational expression V1
＜ K3*V0* (1-X3) and V1 ＞ K3*V0* (1+X3) are compared judgement, and wherein V1 is derrick crane mechanism driving system 10
Low speed end speed, V0 are that derrick crane mechanism driving system 10 operates run signal, and K3 is to derrick crane mechanism driving
System 10 carries out the fixed constant that correlation computations and many experiments draw, X3 is the tolerance value for setting；
When the calculated relationship of V1 and V0 meets judgement relational expression V1 ＜ K3*V0* (1-X3), the V1 ＞ K3*V0* (1+ for setting
X3 in) during any one, the performance element of central controller 50 sends instruction, automatically cuts off derrick crane mechanism driving system
10 input signal, speed end braking, low speed end braking after several seconds of time delay, if being provided with operating room alarm device 70, operating room from
Dynamic warning；
When the calculated relationship of V1 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V1
With V0 zeros datas, rate signal data V1 and V0 is resurveyed, treat that next timing time is arrived, compare again, judge.
Wherein timing time T1 ＜ T2 ＜ T3, T1, T2, T3 are opened after being powered operation from derrick crane mechanism driving system 10
Beginning timing；In the present embodiment, according to selected variable frequency hoisting mechanism characteristic, set timing time and be respectively：T1=1s, T2=
8s, T3=9s, while the value of K1, K2, K3 and X1, X2, X3 need to be determined through calculating and many experiments, to realize to tower lifting
The real-time monitoring of machine mechanism driving system 10 and protection, it is ensured that mechanism's safe operation.
Claims (10)
1. derrick crane mechanism driving system safety guard, it is characterised in that：Including rate signal detection means (20),
Signal processing apparatus (40), central controller (50), mechanism's brake unit (60), operating room alarm device (70)；Rate signal
Detection means (20) includes low speed end speed V1 detection means (21) and speed end speed V2 detection means (22), is respectively used to adopt
The low speed end speed V1 signal and speed end speed V2 signal of collection derrick crane mechanism driving system (10)；Rate signal is detected
Device (20) is electrically connected with signal processing apparatus (40) input, the outfan and central controller of signal processing apparatus (40)
(50) signal input part electrical connection；Central controller (50) includes timing unit, arithmetic element, comparing unit, executes list
Unit, the performance element of central controller (50) are electrically connected in mechanism's brake unit (60)；Mechanism's brake unit (60) includes height
Fast end braking device (62) and low speed end braking device (61).
2. derrick crane mechanism driving system safety guard as claimed in claim 1, it is characterised in that：Also include grasping
Make run signal V0 output device (30), operation run signal V0 output device (30) and signal processing apparatus (40) input electricity
Gas connects.
3. derrick crane mechanism driving system safety guard as claimed in claim 1, it is characterised in that：Also include grasping
Make room alarm device (70), operating room alarm device (70) is electrically connected in the performance element of central controller (50).
4. the derrick crane mechanism driving system safety guard as described in any one in claims 1 to 3, its feature
It is：Derrick crane mechanism driving system (10) includes reel (11), for driving the angle gearing speed-reducer of reel (11)
(13), it is used for the first power transmission shaft (12) for connecting reel (11) and angle gearing speed-reducer (13), angle gearing speed-reducer (13) passes through
Second driving shaft (14) is connected with cylinder gear speed reducer (15), and cylinder gear speed reducer (15) is matched somebody with somebody by the 3rd power transmission shaft (16)
Close shaft coupling (17) to be connected with frequency conversion motor (18).
5. the derrick crane mechanism driving system safety guard as described in any one in claims 1 to 3, its feature
It is：Central controller (50) is provided with the first timing time T1 control units, after timing T1, by judging relational expression V2 ＜ K1*
V1* (1-X1) and V2 ＞ K1*V1* (1+X1) are compared judgement, and wherein V2 is that derrick crane mechanism driving system (10) is high
Fast end speed, V1 are derrick crane mechanism driving system (10) low speed end speed, and K1 is to derrick crane mechanism driving system
System (10) carries out the fixed constant that correlation computations and many experiments draw, X1 is the tolerance value for setting；
When in judgement relational expression V2 ＜ K1*V1* (1-X1), V2 ＞ K1*V1* (1+X1) that the calculated relationship satisfaction of V2 and V1 sets
During any one, the performance element of central controller (50) sends instruction, automatically cuts off derrick crane mechanism driving system
(10) input signal, low speed end and speed end are braked simultaneously, if being provided with operating room alarm device (70), operating room is reported automatically
Alert；
When the calculated relationship of V2 and V1 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2 and V1
Zeros data, resurveys rate signal data V2 and V1, treats that next timing time is arrived, compares again, judges.
6. derrick crane mechanism driving system safety guard as claimed in claim 2, it is characterised in that：Central authorities' control
Device (50) is provided with the second timing time T2 control units, after timing T2, by judging relational expression V2 ＜ K2*V0* (1-X2) and V2
＞ K2*V0* (1+X2) are compared judgement, and wherein V2 is derrick crane mechanism driving system (10) speed end speed, and V0 is
Derrick crane mechanism driving system (10) operates run signal, and K2 is to carry out phase to derrick crane mechanism driving system (10)
The fixed constant that calculating and many experiments draw is closed, X2 is the tolerance value for setting；
When in judgement relational expression V2 ＜ K2*V0* (1-X2), V2 ＞ K2*V0* (1+X2) that the calculated relationship satisfaction of V2 and V0 sets
During any one, the performance element of central controller (50) sends instruction, automatically cuts off derrick crane mechanism driving system
(10) low speed end braking after input signal, speed end braking, several seconds of time delay, if being provided with operating room alarm device (70), operation
Room automatic alarm；
When the calculated relationship of V2 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2 and V0
Zeros data, resurveys rate signal data V2 and V0, treats that next timing time is arrived, compares again, judges.
7. derrick crane mechanism driving system safety guard as claimed in claim 2, it is characterised in that：Central authorities' control
Device (50) is provided with the 3rd timing time T3 control units, after timing T3, by judging relational expression V1 ＜ K3*V0* (1-X3) and V1
＞ K3*V0* (1+X3) are compared judgement, and wherein V1 is derrick crane mechanism driving system (10) low speed end speed, and V0 is
Derrick crane mechanism driving system (10) operates run signal, and K3 is to carry out phase to derrick crane mechanism driving system (10)
The fixed constant that calculating and many experiments draw is closed, X3 is the tolerance value for setting；
When in judgement relational expression V1 ＜ K3*V0* (1-X3), V1 ＞ K3*V0* (1+X3) that the calculated relationship satisfaction of V1 and V0 sets
During any one, the performance element of central controller (50) sends instruction, automatically cuts off derrick crane mechanism driving system
(10) low speed end braking after input signal, speed end braking, several seconds of time delay, if being provided with operating room alarm device (70), operation
Room automatic alarm；
When the calculated relationship of V1 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V1 and V0
Zeros data, resurveys rate signal data V1 and V0, treats that next timing time is arrived, compares again, judges.
8. derrick crane mechanism driving system method for security protection, it is characterised in that step is：
Step one, gathers low speed end speed V1 signal and speed end speed V2 of derrick crane mechanism driving system (10) respectively
Signal；
Step 2, the low speed end speed V1 signal of derrick crane mechanism driving system (10), speed end speed V2 signal are passed
Deliver to signal processing apparatus (40) to be processed；
Signal after signal processing apparatus (40) process is sent to central controller (50) by step 3；
Step 4, central controller (50) are provided with the first timing time T1 control units, after timing T1, by judging relational expression V2
＜ K1*V1* (1-X1) and V2 ＞ K1*V1* (1+X1) are compared judgement, and wherein V2 is derrick crane mechanism driving system
(10) speed end speed, V1 are derrick crane mechanism driving system (10) low speed end speed, and K1 is to derrick crane mechanism
Drive system (10) carries out the fixed constant that correlation computations and many experiments draw, X1 is the tolerance value for setting；
When in judgement relational expression V2 ＜ K1*V1* (1-X1), V2 ＞ K1*V1* (1+X1) that the calculated relationship satisfaction of V2 and V1 sets
During any one, the performance element of central controller (50) sends instruction, automatically cuts off derrick crane mechanism driving system
(10) input signal, low speed end and speed end are braked simultaneously, if being provided with operating room alarm device (70), operating room is reported automatically
Alert；
When the calculated relationship of V2 and V1 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2 and V1
Zeros data, resurveys rate signal data V2 and V1, treats that next timing time is arrived, compares again, judges.
9. derrick crane mechanism driving system method for security protection as claimed in claim 8, it is characterised in that：
In step 2, operation run signal V0 is simultaneously transferred to signal processing apparatus (40) and is processed；
After step 3, central controller (50) is provided with the second timing time T2 control units and the 3rd timing time T3 controls
Unit, after timing T2, by judging that relational expression V2 ＜ K2*V0* (1-X2) and V2 ＞ K2*V0* (1+X2) be compared judgement, wherein
V2 is derrick crane mechanism driving system (10) speed end speed, and V0 is derrick crane mechanism driving system (10) operation fortune
Row signal, K2 are often to carry out a fixation that correlation computations and many experiments draw to derrick crane mechanism driving system (10)
Number, X2 are the tolerance value for setting；
When in judgement relational expression V2 ＜ K2*V0* (1-X2), V2 ＞ K2*V0* (1+X2) that the calculated relationship satisfaction of V2 and V0 sets
During any one, the performance element of central controller (50) sends instruction, automatically cuts off derrick crane mechanism driving system
(10) low speed end braking after input signal, speed end braking, several seconds of time delay, if being provided with operating room alarm device (70), operation
Room automatic alarm；
When the calculated relationship of V2 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V2 and V0
Zeros data, resurveys rate signal data V2 and V0, treats that next timing time is arrived, compares again, judges.
After timing T3, by judging that relational expression V1 ＜ K3*V0* (1-X3) and V1 ＞ K3*V0* (1+X3) be compared judgement, wherein
V1 is derrick crane mechanism driving system (10) low speed end speed, and V0 is derrick crane mechanism driving system (10) operation fortune
Row signal, K3 are often to carry out a fixation that correlation computations and many experiments draw to derrick crane mechanism driving system (10)
Number, X3 are the tolerance value for setting；
When in judgement relational expression V1 ＜ K3*V0* (1-X3), V1 ＞ K3*V0* (1+X3) that the calculated relationship satisfaction of V1 and V0 sets
During any one, the performance element of central controller (50) sends instruction, automatically cuts off derrick crane mechanism driving system
(10) low speed end braking after input signal, speed end braking, several seconds of time delay, if being provided with operating room alarm device (70), operation
Room automatic alarm；
When the calculated relationship of V1 and V0 is unsatisfactory for the judgement relational expression for setting, down-stream is executed normally, while to V1 and V0
Zeros data, resurveys rate signal data V1 and V0, treats that next timing time is arrived, compares again, judges.
10. derrick crane mechanism driving system method for security protection as claimed in claim 9, it is characterised in that：During timing
Between T1 ＜ T2 ＜ T3.
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| CN107458841A (en) * | 2017-08-03 | 2017-12-12 | 武汉钢铁有限公司 | A kind of apparatus and method for belt driven rollers fault diagnosis |
| CN111348575A (en) * | 2018-12-24 | 2020-06-30 | 核动力运行研究所 | Falling detection and protection device and method for gear rack transmission lifting mechanism |
| WO2021243981A1 (en) * | 2020-06-04 | 2021-12-09 | 江西中天智能装备股份有限公司 | Electronic limiting device used for tower crane lifting mechanism |
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