CN204199265U - A kind of inclined ship lifts relay drives electrical control gear - Google Patents
A kind of inclined ship lifts relay drives electrical control gear Download PDFInfo
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- CN204199265U CN204199265U CN201420562708.1U CN201420562708U CN204199265U CN 204199265 U CN204199265 U CN 204199265U CN 201420562708 U CN201420562708 U CN 201420562708U CN 204199265 U CN204199265 U CN 204199265U
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Abstract
The utility model discloses a kind of inclined ship lifts relay and drive electrical control gear, comprise hoist engine principal and subordinate gear unit, friction pulley principal and subordinate gear unit, PLC, four position switch, PLC comprises hoist engine velocity measuring module, friction pulley velocity measuring module, control signal module and ship reception chamber position detecting module, hoist engine velocity measuring module is connected with hoist engine main transmission unit, elevator owner, be connected from gear unit, friction pulley velocity measuring module is connected with friction pulley main transmission unit, friction pulley master, be connected from gear unit, control signal module and hoist engine main transmission unit, friction pulley principal and subordinate gear unit is connected, ship reception chamber position detecting module is connected with each position switch.The utility model can solve inclined ship lifts hoist engine and friction pulley relay driving coordinates problem closely, makes ship reception chamber smoothly go over hump, and ensures ship lift safe operation, can be widely used on inclined ship lifts.
Description
Technical field
The utility model relates to inclined ship lifts relay and drives electrical control system, particularly relates to a kind of inclined ship lifts relay and drives electrical control gear.
Background technology
Inclined ship lifts generally adopt water form under ship reception chamber, have and do not need to arrange head bay and tail-bay compared with vertical ship lift, can reduce native stone excavation and concrete placings engineering quantity in a large number, the feature of saving construction investment.At present, the inclined ship lifts that China is built are with small-sized in the majority.
The mode that inclined ship lifts ship reception chamber crosses hump mainly contains: utilize ship reception chamber to run inertia and cross hump, adopt hydraulic pushing machine pushing tow to cross hump, adopt friction pulley to drive several modes such as hump (being called for short: rubbed hump).Small-sized inclined ship lifts generally adopt ship reception chamber operation inertia to cross the mode of hump.In contrast, it is more simple and practical that rubbed hump crosses hump than hydraulic pushing machine pushing tow, be applicable to medium-sized inclined ship lifts, but because rubbed hump relay drives each parts of process entails jointly to coordinate, be connected tight, control and regulation required precision is high, becomes a difficult problem of its electrical control gear design.
Rubbed hump formula inclined ship lifts are primarily of the composition such as elevator driving mechanism (being called for short: hoist engine), friction wheel driving mechanism (being called for short: friction pulley), ship reception chamber, orbit.Ship reception chamber carrying vessel, drives through hoist engine and friction pulley relay and does lifting operation and cross hump.Ship reception chamber running orbit be upper (lower) trip ramp, hump, under (on) trip ramp.To pole a boat railway carriage or compartment oblique unwheeling two ends in outside high and low wheel is set respectively, the track space of upstream and downstream ramp is different, and oblique unwheeling switches tracks naturally when hump section is run, and makes ship reception chamber total travel maintenance level run.
Ship reception chamber is driven by hoist engine when running on upstream and downstream ramp, is driven by friction pulley at hump interlude.In hump the initial segment, ship reception chamber is driven to transfer to gradually by hoist engine and is driven by friction pulley, and at hump terminate section, ship reception chamber is driven by friction pulley and transfers to by hoist engine unidirectional driving gradually, and namely ship reception chamber is crossed hump operation and completed driving by hoist engine and friction pulley relay.
The main feature of this ship lift is: ship reception chamber need be filled with water and carry a ship and cross dam (wet fortune mode), thus must ensure that the water body in ship reception chamber is steady, avoid because water wave causes boats and ships to rock and produces excessive mooring force, to guarantee the safety of boats and ships in ship reception chamber.Can whether the process that ship reception chamber crosses hump be steady, be the key guaranteeing this type ship lift safe operation, and it depends on that the relay of hoist engine and friction pulley drives the cooperation of process whether tight.
In order to obtain the steady performance crossing hump of ship reception chamber, when crossing hump, following condition must be met:
1. when ship reception chamber is sailed to the summit section of putting down by side upward slope, reduce speed now from hoist engine, to when transferring friction drive device driving to, the speed of service of ship reception chamber should remain unchanged.
2. when crossing hump center, the haulage cable of hoist engine should have the lax of appropriateness: if without lax, ship reception chamber will in hump cardiac standstill, traveling can not be continued and cross hump center (dead point); If relaxed length is inadequate, then can before hoist engine oppositely accelerates to normal speed, haulage cable is tensioning, ship reception chamber unexpected deceleration in the summit section of putting down can be made even to pause on the one hand, and cause ship railway carriage or compartment water fluctuation, friction pulley will skid on the other hand, causes friction driving roller to clash into friction track; If but it is excessively lax, then after hoist engine oppositely accelerates to normal speed, wire rope still has one section of relaxed length, like this, when ship reception chamber drives towards opposite side ramp descending by the summit section of putting down, ship reception chamber is by unfettered, thus initiation is greatly impacted, this is breakneck, and the more harm of steel wire rope looseness is larger.
3. after friction pulley contacts with friction track, in whole friction-driven section, the linear velocity of friction pulley should remain unchanged, and namely the electric drive system of friction pulley should have harder mechanical property.
4., during friction-driven, the deceleration of hoist engine and reverse accelerator, situation the most suitable is that maintenance subtracts, acceleration amplitude is constant.
Utility model content
The purpose of this utility model is the operation characteristic rising ship for rubbed hump formula inclined-plane, a kind of inclined ship lifts relay is provided to drive electrical control gear, inclined ship lifts hoist engine and friction pulley relay can be solved drive and coordinate problem closely, make ship reception chamber smoothly go over hump, and ensure ship lift safe operation.
A kind of inclined ship lifts relay that the utility model provides drives electrical control gear, comprise hoist engine main transmission unit, hoist engine is from gear unit, friction pulley main transmission unit, friction pulley is from gear unit, PLC (Programmable Logic Controller, programmable logic controller (PLC)), primary importance switch, second place switch, three position switch and the 4th position switch, described PLC comprises hoist engine velocity measuring module, friction pulley velocity measuring module, control signal module and ship reception chamber position detecting module, the signal input part of described hoist engine velocity measuring module is connected with the signal output part of hoist engine main transmission unit, the signal output part of described hoist engine main transmission unit is connected with the signal input part of hoist engine from gear unit, the signal input part of described friction pulley velocity measuring module is connected with the signal output part of friction pulley main transmission unit, the signal input part of described friction pulley main transmission unit is connected with the signal output part of friction pulley from gear unit, the signal output part of described control signal module respectively with hoist engine main transmission unit, friction pulley main transmission unit is connected with the signal input part of friction pulley from gear unit, the signal input part of described ship reception chamber position detecting module respectively with primary importance switch, second place switch, three position switch is connected with the signal output part of the 4th position switch.
In technique scheme, described hoist engine main transmission unit comprises position ring and first hoist speed ring, described hoist engine comprises second hoist speed ring from gear unit, described position ring comprises hoist engine rate generator, location comparison device, position control and hoist engine velocity addition device, described first hoist speed ring and second hoist speed ring include hoist engine speed regulator, torque controller, hoist engine current regulator, hoist engine ac-dc-ac frequency converter, winder motor and hoist engine velocity sensor, described first hoist speed ring also comprises hoist engine First Speed comparator, described second hoist speed ring also comprises hoist engine third speed comparator, the signal input part of described hoist engine rate generator is connected with the signal input part of location comparison device with the signal output part of control signal module respectively with signal output part, the described signal output part of location comparison device is connected with the signal input part of position control, the signal output part of described position control is connected with the signal input part of hoist engine velocity addition device, the signal output part of described hoist engine velocity addition device is connected with the signal input part of hoist engine First Speed comparator, the signal output part of described hoist engine First Speed comparator is connected with the signal input part of hoist engine speed regulator, the described signal output part of hoist engine speed regulator is connected with the signal input part of torque controller, the signal output part of described torque controller is connected with the signal input part of hoist engine current regulator, the signal output part of described hoist engine current regulator is connected with the signal input part of hoist engine ac-dc-ac frequency converter, the described signal output part of hoist engine ac-dc-ac frequency converter is connected with the signal input part of winder motor, the non-drive axle of described winder motor is provided with hoist engine velocity sensor, the signal output part of described hoist engine velocity sensor is connected with the signal input part of hoist engine velocity measuring module with the signal input part of hoist engine First Speed comparator respectively, the signal output part of described hoist engine velocity addition device is connected with the signal input part of hoist engine third speed comparator, the signal output part of described hoist engine third speed comparator is connected with the signal input part of hoist engine speed regulator, the described signal output part of hoist engine speed regulator is connected with the signal input part of torque controller, the signal output part of described torque controller is connected with the signal input part of hoist engine current regulator, the signal output part of described hoist engine current regulator is connected with the signal input part of hoist engine ac-dc-ac frequency converter, the described signal output part of hoist engine ac-dc-ac frequency converter is connected with the signal input part of winder motor, the non-drive axle of described winder motor is provided with hoist engine velocity sensor, the signal output part of described hoist engine velocity sensor is connected with the signal input part of hoist engine third speed comparator respectively.
In technique scheme, described first hoist speed ring and second hoist speed ring also comprise feed forward of acceleration unit, the signal output part of the feed forward of acceleration unit in described first hoist speed ring is connected with the signal input part of the torque controller in first hoist speed ring, and the signal output part of the feed forward of acceleration unit in described second hoist speed ring is connected with the signal input part of the torque controller in second hoist speed ring.
In technique scheme, described first hoist speed ring and second hoist speed ring also comprise damping compensation unit, pre-torque unit, Friction Compensation unit, torque comparator and system status parameters arithmetic element, in described first hoist speed ring, the signal input part of described torque controller respectively with damping compensation unit, pre-torque unit is connected with the signal output part of Friction Compensation unit, the signal input part of described system status parameters arithmetic element is connected with the signal output part of hoist engine velocity sensor, the signal output part of described system status parameters arithmetic element is connected with the signal input part of torque comparator, the signal output part of described torque comparator is connected with the signal input part of damping compensation unit, the signal output part of described hoist engine velocity sensor is connected with the signal input part of torque comparator with Friction Compensation unit respectively, in described second hoist speed ring, the signal input part of described torque controller respectively with damping compensation unit, pre-torque unit is connected with the signal output part of Friction Compensation unit, the signal input part of described system status parameters arithmetic element is connected with the signal output part of hoist engine velocity sensor, the signal output part of described system status parameters arithmetic element is connected with the signal input part of torque comparator, the signal output part of described torque comparator is connected with the signal input part of damping compensation unit, the signal output part of described hoist engine velocity sensor is connected with the signal input part of torque comparator with Friction Compensation unit respectively.
In technique scheme, described first hoist speed ring and second hoist speed ring also comprise hoist engine torque amplitude limit unit; In described first hoist speed ring, the signal input part of described hoist engine torque amplitude limit unit is connected with the signal input part of hoist engine current regulator with the signal output part of torque controller respectively with signal output part; In described second hoist speed ring, the signal input part of described hoist engine torque amplitude limit unit is connected with the signal input part of hoist engine current regulator with the signal output part of torque controller respectively with signal output part.
In technique scheme, described second hoist speed ring also comprises hoist engine second speed comparator and velocity feed forward unit, the signal input part of described hoist engine second speed comparator respectively with first hoist speed ring and second hoist speed ring separately belonging to the signal output part of hoist engine speed regulator be connected, the signal output part of described hoist engine second speed comparator is connected with the signal input part of velocity feed forward unit, and the signal output part of described velocity feed forward unit is connected with the signal input part of hoist engine third speed comparator.
In technique scheme, described PLC also comprises ship reception chamber stroke detection module, described first hoist speed ring and second hoist speed ring include stroke sensor, the signal output part of the stroke sensor in described first hoist speed ring is connected with the signal input part of location comparison device, and the signal output part of the stroke sensor in second hoist speed ring is connected with the signal input part of ship reception chamber stroke detection module.
In technique scheme, described friction pulley main transmission unit comprises the first friction pulley speed ring, described friction pulley comprises the second friction pulley speed ring from gear unit, described first friction pulley speed ring and the second friction pulley speed ring include friction pulley current regulator, friction pulley ac-dc-ac frequency converter, friction pulley motor and friction pulley velocity sensor, described first friction pulley speed ring also comprises the first friction pulley rate generator, first friction pulley speed comparator and the first friction pulley speed regulator, described second friction pulley speed ring also comprises the second friction pulley rate generator, second friction pulley speed comparator and the second friction pulley speed regulator, in described first friction pulley speed ring, the signal input part of described first friction pulley rate generator is connected with the signal input part of the first friction pulley speed comparator with the signal output part of control signal module respectively with signal output part, the signal output part of described first friction pulley speed comparator is connected with the signal input part of the first friction pulley speed regulator, the signal output part of described first friction pulley speed regulator is connected with the signal input part of friction pulley current regulator, the signal output part of described friction pulley current regulator is connected with the signal input part of friction pulley ac-dc-ac frequency converter, the signal output part of described friction pulley ac-dc-ac frequency converter is connected with the signal input part of friction pulley motor, the non-drive axle of described friction pulley motor is provided with friction pulley velocity sensor, the signal output part of described friction pulley velocity sensor is connected with the signal input part of friction pulley velocity measuring module with the signal input part of the first friction pulley speed comparator respectively, in described second friction pulley speed ring, the signal input part of the second friction pulley rate generator is connected with the signal input part of the second friction pulley speed comparator with the signal output part of control signal module respectively with signal output part, the signal output part of described second friction pulley speed comparator is connected with the signal input part of the second friction pulley speed regulator, the signal output part of described second friction pulley speed regulator is connected with the signal input part of friction pulley current regulator, the signal output part of described friction pulley current regulator is connected with the signal input part of friction pulley ac-dc-ac frequency converter, the signal output part of described friction pulley ac-dc-ac frequency converter is connected with the signal input part of friction pulley motor, the non-drive axle of described friction pulley motor is provided with friction pulley velocity sensor, the signal output part of described friction pulley velocity sensor is connected with the signal input part of the second friction pulley speed comparator respectively.
In technique scheme, described second friction pulley speed ring also comprises speed tracing comparator and friction pulley velocity addition device, the signal input part of described friction pulley velocity addition device is connected with the signal input part of the second friction pulley speed comparator with the signal output part of the second friction pulley rate generator respectively with signal output part, the signal input part of described speed tracing comparator respectively with the first friction pulley speed ring and the second friction pulley speed ring separately belonging to the signal output part of friction pulley velocity sensor be connected, the signal output part of described speed tracing comparator is connected with the signal input part of friction pulley velocity addition device.
In technique scheme, described first friction pulley speed ring and the second friction pulley speed ring include friction pulley torque amplitude limit unit; In described first friction pulley speed ring, the signal input part of described friction pulley torque amplitude limit unit is connected with the signal input part of friction pulley current regulator with the signal output part of the first friction pulley speed regulator respectively with signal output part; In described second friction pulley speed ring, the signal input part of described friction pulley torque amplitude limit unit is connected with the signal input part of friction pulley current regulator with the signal output part of the second friction pulley speed regulator respectively with signal output part.
Operating principle of the present utility model is as follows: run from upstream toward downstream (being called for short: ship reception chamber is descending) for inclined ship lifts ship reception chamber, upstream ramp road is driven by hoist engine, and wire rope is walked around fixed pulley traction ship reception chamber upward slope and run.
When collision block knocks the 4th position switch, friction pulley starts, and ship reception chamber continues to go up a slope and runs, and friction track starts contact friction wheel, and ship reception chamber is driven jointly by hoist engine and friction pulley.
When collision block knocks second place switch, hoist engine slows down, and ship reception chamber is driven by friction pulley and continues to run by normal speed, and wire rope eases out a segment length gradually, for ship reception chamber crosses hump center preparatory condition.
When ship reception chamber move to its cross central line overlap with hump center line time, hoist engine speed is kept to zero and oppositely accelerates immediately, ship reception chamber crosses hump center, wire rope tightens up gradually, and when wire rope tightens up completely, hoist engine also just in time accelerates to reverse normal speed, ship reception chamber is driven by friction pulley and transfers hoist engine driving gradually to simultaneously, after friction track departs from friction pulley, ship reception chamber transfers to hoist engine to drive completely, and wire rope is walked around fixed pulley traction ship reception chamber descending and run until run whole stroke.
The up program of ship reception chamber is identical with descending, and in up process, collision block successively knocks three position switch and primary importance switch, completes relay and crosses hump.Negative (just) acceleration etc. when hump is crossed according to the speed of service of the installation site of the physical dimension of the length of the hump section of putting down, tiltedly unwheeling and friction pulley, collision block, hoist engine and friction pulley, hoist engine in the position (installation site of second place switch and primary importance switch) of relay point is determined.
The inclined ship lifts relay of the utility model design drives electrical control gear, comprises hoist engine electric drive system, friction pulley electric drive system and PLC.
(1) hoist engine electric drive system
Two winder motors employing mechanical axis of hoist engine are synchronous, load balancing control mode is run, and its electric drive system is made up of from gear unit hoist engine main transmission unit and hoist engine.Described hoist engine main transmission unit comprises position ring, first hoist speed ring, described hoist engine comprises second hoist speed ring from gear unit, described first hoist speed ring and second hoist speed ring include hoist engine speed regulator, torque controller, hoist engine current regulator, hoist engine ac-dc-ac frequency converter, the signal output part of described hoist engine speed regulator is connected with the signal input part of hoist engine current regulator, the signal output part of described hoist engine current regulator is connected with the signal input part of hoist engine ac-dc-ac frequency converter, described hoist engine ac-dc-ac frequency converter is connected with winder motor, the non-drive axle of described winder motor is provided with hoist engine velocity sensor and stroke sensor, the signal output part of the stroke sensor of described hoist engine main transmission unit is connected with described location comparison device signal input part, the signal output part of the hoist engine velocity sensor of described hoist engine main transmission unit is connected with the signal input part of hoist engine First Speed comparator, the signal input part of described hoist engine First Speed comparator is connected with the signal output part of hoist engine velocity addition device, the signal output part of described hoist engine First Speed comparator is connected with the signal input part of described hoist engine speed regulator.Described position ring also comprises hoist engine rate generator, location comparison device, position control and hoist engine velocity addition device, the signal input part of the signal output part link position comparator of described hoist engine rate generator, the signal input part of the signal output part link position adjuster of described location comparison device, the signal output part of described position control connects the signal input part of hoist engine velocity addition device, and the signal input part of described hoist engine rate generator connects the control signal module of PLC.Be connected with torque controller between the signal output part of described hoist engine speed regulator and the signal input part of hoist engine current regulator, the signal input part of described torque controller is connected with feed forward of acceleration unit, Friction Compensation unit, pre-torque unit and damping compensation unit; The signal output part of described hoist engine velocity sensor is also connected with system status parameters arithmetic element, the signal output part of described system status parameters arithmetic element and the signal output part of hoist engine velocity sensor are all connected to the signal input part of torque comparator, and the signal output part of described torque comparator connects the signal input part of described damping compensation unit.Described hoist engine also comprises velocity feed forward unit from gear unit, hoist engine second speed comparator and hoist engine third speed comparator, described two hoist engine speed regulator signal output parts are all connected with the signal input part of hoist engine second speed comparator, the signal output part of hoist engine second speed comparator is connected with the signal input part of velocity feed forward unit, the signal output part of described velocity feed forward unit is connected with the signal input part of hoist engine third speed comparator, hoist engine torque amplitude limit unit is connected with between the signal output part of described torque controller and the signal input part of hoist engine current regulator.
(2) friction pulley electric drive system
Two friction pulley motor of friction pulley adopt electrical control speed sync mode to run, and its electric drive system is made up of from gear unit friction pulley main transmission unit and friction pulley.Described friction pulley main transmission unit comprises the first friction pulley speed ring, described friction pulley comprises the second friction pulley speed ring from gear unit, described first friction pulley speed ring, second friction pulley speed ring includes friction pulley current regulator, friction pulley ac-dc-ac frequency converter, friction pulley motor and friction pulley velocity sensor, described first friction pulley speed ring also comprises the first friction pulley rate generator, first friction pulley speed comparator and the first friction pulley speed regulator, described second friction pulley speed ring also comprises the second friction pulley rate generator, second friction pulley speed comparator and the second friction pulley speed regulator, the signal output part of described first friction pulley speed regulator is connected with the signal input part of friction pulley current regulator in the first friction pulley speed ring, the signal output part of described second friction pulley speed regulator is connected with the signal input part of friction pulley current regulator in the second friction pulley speed ring, the signal output part of described friction pulley current regulator is connected with the signal input part of friction pulley ac-dc-ac frequency converter, described friction pulley ac-dc-ac frequency converter is connected with friction pulley motor, the non-drive axle of described friction pulley motor is provided with friction pulley velocity sensor, in described first friction pulley speed ring, the signal output part of friction pulley velocity sensor is connected with the signal input part of the first friction pulley speed comparator, in described second friction pulley speed ring, the signal output part of friction pulley velocity sensor is connected with the signal input part of the second friction pulley speed comparator, the signal input part of described first friction pulley speed comparator is connected with the signal output part of the first friction pulley rate generator, the signal output part of described first friction pulley speed comparator is connected with the signal input part of described first friction pulley speed regulator, the control signal model calling of the signal input part that described first friction pulley speed occurs and PLC, described friction pulley also comprises speed tracing comparator and friction pulley velocity addition device from gear unit, described friction pulley main transmission unit and friction pulley from gear unit separately belonging to the signal output part of friction pulley velocity sensor be all connected with the signal input part of speed tracing comparator, the signal output part of described speed tracing comparator is all connected with the signal input part of friction pulley velocity addition device with the signal output part of the second friction pulley rate generator, the signal output part of described friction pulley velocity addition device is connected with the signal input part of the second friction pulley speed comparator, friction pulley torque amplitude limit unit is connected with between the signal output part of described friction pulley speed regulator and the signal input part of friction pulley current regulator.
(3) transmission control station
Transmission control station adopts programmable logic controller (PLC) (PLC) to do master devices, described PLC and adopt network to carry out Signal transmissions between hoist engine electric drive system and friction pulley electric drive system ac-dc-ac frequency converter separately, described PLC and four overlaps position switch and adopts cable to be connected.PLC gathers each run signal of ship lift, automatically sends control instruction according to the operation stroke of ship reception chamber and position, the opening of cooperation control hoist engine and friction pulley, stops and relay running.
The speed of service curve of hoist engine and friction pulley is produced by preset parameter by the rate generator of each ac-dc-ac frequency converter respectively; The relay of the unlatching of friction pulley, hoist engine and friction pulley is all controlled by four cover position switch.
Fig. 3 reflects ship reception chamber and crosses hump and connect power-actuated major parameter and choose:
V
1=V
2, namely ship reception chamber remains unchanged on ramp and in the speed of service of the hump section of putting down;
T
1=t
2, when crossing hump center, the length S=1/2V that the haulage cable of hoist engine is lax
1t
1;
V
2for constant speed, namely friction pulley linear velocity remains unchanged;
A
2=a
3, namely the deceleration of hoist engine and backward acceleration constant and equal.
The relay of the utility model inclined ship lifts drives electrical control gear, has following beneficial effect: can solve inclined ship lifts hoist engine and friction pulley relay and drive and coordinate problem closely, make ship reception chamber smoothly go over hump, and ensure ship lift safe operation.Technical solutions of the utility model have been used successfully in the test process of the medium-sized inclined ship lifts of 300t level, and actual motion is good, safe and reliable, meets engineering design and service requirement, is particularly useful for middle-size and small-size inclined ship lifts.
Accompanying drawing explanation
Fig. 1 is the structural representation of inclined ship lifts mechanical actuation device;
44-primary importance switch; 45-second place switch; 46-the three position switch; 47-the four position switch; 48-collision block; 49-fixed pulley; 50-fixed pulley; 51-fixed pulley; 52-wire rope; 53-friction track; 54-friction pulley; 55-ship reception chamber; 56-tiltedly unwheeling.
Fig. 2 is the structural representation that the relay of the utility model inclined ship lifts drives electrical control gear;
(1) hoist engine electric drive system
1-hoist engine main transmission unit; 2-hoist engine is from gear unit; 5-position ring; 6.1-first hoist speed ring; 6.2-second hoist speed ring; 8-hoist engine rate generator; 9-position control; 10-hoist engine speed regulator; 11-torque controller; 12-feed forward of acceleration unit; 13-hoist engine torque amplitude limit unit; 14-hoist engine current regulator; 15-system status parameters arithmetic element; 16-damping compensation unit; 17-pre-torque unit; 18-Friction Compensation unit; 19-hoist engine First Speed comparator; 20-hoist engine velocity addition device; 21-location comparison device; 22-torque comparator; 23-hoist engine second speed comparator; 24-hoist engine third speed comparator; 25-velocity feed forward unit; 26-hoist engine ac-dc-ac frequency converter; 27-winder motor; 28-hoist engine velocity sensor; 29-stroke sensor;
(2) friction pulley electric drive system
3-friction pulley main transmission unit; 4-friction pulley is from gear unit; 7.1-the first friction pulley speed ring; 7.2-the second friction pulley speed ring; 31-the first friction pulley rate generator; 32-the first friction pulley speed regulator; 33-friction pulley torque amplitude limit unit; 34-friction pulley current regulator; 35-the first friction pulley speed comparator; 36-speed tracing comparator; 37-the second friction pulley rate generator; 38-friction pulley velocity addition device; 39-the second friction pulley speed regulator; 40-the second friction pulley speed comparator; 41-friction pulley ac-dc-ac frequency converter; 42-friction pulley motor; 43-friction pulley velocity sensor;
(3) transmission control station
30-PLC; 30.1-hoist engine velocity measuring module; 30.2-friction pulley velocity measuring module; 30.3-control signal module; 30.4-ship reception chamber position detecting module; 30.5-ship reception chamber stroke detection module.
Fig. 3 is that the relay of the utility model inclined ship lifts drives electrical control gear relay to drive speed of service figure.
V
1-hoist engine the speed of service; V
2the linear velocity of-friction pulley; t
1-hoist engine reduces to the time of 0 from normal speed; t
2-hoist engine is added to the time of normal speed from 0; a
1-hoist engine starts acceleration during startup optimization; a
2hump negative acceleration crossed by-hoist engine; a
3hump backward acceleration crossed by-hoist engine.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model.
See Fig. 1, run (being called for short: ship reception chamber 55 is descending), upstream ramp road is driven by hoist engine for inclined ship lifts ship reception chamber 55 from upstream toward downstream, wire rope 52 is walked around fixed pulley 49,50 and is drawn the operation of ship reception chamber 55 upward slope.
When collision block 48 knocks the 4th position switch 47, friction pulley 54 starts, and ship reception chamber 55 continues to go up a slope and runs, and friction track 53 starts contact friction wheel 54, and ship reception chamber 55 is driven jointly by hoist engine and friction pulley 54.
When collision block 48 knocks second place switch 45, hoist engine slows down, and ship reception chamber 55 is driven by friction pulley 54 and continues to run by normal speed, and wire rope 52 eases out a segment length gradually, for ship reception chamber 55 crosses hump center preparatory condition.
When ship reception chamber 55 move to its cross central line overlap with hump center line time, hoist engine speed is kept to zero and oppositely accelerates immediately, ship reception chamber 55 crosses hump center, wire rope 52 tightens up gradually, when wire rope 52 tightens up completely, hoist engine also just in time accelerates to reverse normal speed, ship reception chamber 55 is driven by friction pulley 54 and transfers hoist engine driving gradually to simultaneously, after friction track 53 departs from friction pulley 54, ship reception chamber 55 transfers to hoist engine to drive completely, and wire rope 52 is walked around fixed pulley 49,51 and drawn the operation of ship reception chamber 55 descending until run whole stroke.
The up program of ship reception chamber 55 is identical with descending, and in up process, collision block 48 successively knocks three position switch 46 and primary importance switch 44, completes relay and crosses hump.Negative (just) acceleration etc. when hump is crossed according to the speed of service of the installation site of the physical dimension of the length of the hump section of putting down, tiltedly unwheeling 56 and friction pulley 54, collision block 48, hoist engine and friction pulley 54, hoist engine in the position (installation site of second place switch 45 and primary importance switch 44) of relay point is determined.
See Fig. 2, the inclined ship lifts relay of the utility model design drives electrical control gear, comprises hoist engine electric drive system, friction pulley electric drive system, PLC30, primary importance switch 44, second place switch 45, three position switch 46 and the 4th position switch 47.
Wherein, hoist engine electric drive system comprises hoist engine main transmission unit 1 and hoist engine from gear unit 2, friction pulley electric drive system comprises friction pulley main transmission unit 3 and friction pulley from gear unit 4, described PLC30 comprises hoist engine velocity measuring module 30.1, friction pulley velocity measuring module 30.2, control signal module 30.3, ship reception chamber position detecting module 30.4 and ship reception chamber stroke detection module 30.5, the signal input part of described hoist engine velocity measuring module 30.1 is connected with the signal output part of hoist engine main transmission unit 1, the signal output part of described hoist engine main transmission unit 1 is connected with the signal input part of hoist engine from gear unit 2, the signal input part of described friction pulley velocity measuring module 30.2 is connected with the signal output part of friction pulley main transmission unit 3, the signal input part of described friction pulley main transmission unit 3 is connected with the signal output part of friction pulley from gear unit 4, the signal output part of described control signal module 30.3 respectively with hoist engine main transmission unit 1, friction pulley main transmission unit 3 is connected with the signal input part of friction pulley from gear unit 4, the signal input part of described ship reception chamber position detecting module 30.4 respectively with primary importance switch 44, second place switch 45, three position switch 46 is connected with the signal output part of the 4th position switch 47, the signal input part of described ship reception chamber stroke detection module 30.5 is connected with the signal output part of hoist engine from gear unit 2.
(1) hoist engine electric drive system
The two motors employing mechanical axis of hoist engine is synchronous, load balancing control mode is run, and its electric drive system comprises hoist engine main transmission unit 1, hoist engine from gear unit 2, adopts network to connect between two gear units.Hoist engine main transmission unit 1 comprises position ring 5, first hoist speed ring 6.1, and hoist engine comprises second hoist speed ring 6.2 from gear unit 2.Described first hoist speed ring 6.1 and second hoist speed ring 6.2 include hoist engine speed regulator 10, torque controller 11, hoist engine current regulator 14, hoist engine ac-dc-ac frequency converter 26, the signal output part of described hoist engine speed regulator 10 is connected with the signal input part of hoist engine current regulator 14, the signal output part of described hoist engine current regulator 14 is connected with the signal input part of hoist engine ac-dc-ac frequency converter 26, described hoist engine ac-dc-ac frequency converter 26 is connected with winder motor 27, the non-drive axle of described winder motor 27 is provided with hoist engine velocity sensor 28 and stroke sensor 29, the signal output part of the stroke sensor 29 of described hoist engine main transmission unit 1 is connected with location comparison device 21 signal input part, hoist engine is connected from the signal output part of the stroke sensor 29 of gear unit 2 with the signal input part of ship reception chamber stroke detection module 30.5.The signal output part of the hoist engine velocity sensor 28 of described hoist engine main transmission unit 1 is connected with the signal input part of hoist engine First Speed comparator 19, the signal input part of described hoist engine First Speed comparator 19 is connected with the signal output part of hoist engine velocity addition device 20, and the signal output part of hoist engine First Speed comparator 19 is connected with the signal input part of hoist engine speed regulator 10.Described position ring 5 also comprises hoist engine rate generator 8, location comparison device 21, position control 9 and hoist engine velocity addition device 20, the signal input part of the signal output part link position comparator 21 of described hoist engine rate generator 8, the signal input part of the signal output part link position adjuster 9 of described location comparison device 21, the signal output part of described position control 9 connects the signal input part of hoist engine velocity addition device 20, and the signal input part of described hoist engine rate generator 8 connects the control signal module 30.3 of PLC30.Torque controller 11 is connected with between the signal output part of described hoist engine speed regulator 10 and the signal input part of described hoist engine current regulator 14, the signal input part of described torque controller 11 is connected with feed forward of acceleration unit 12, Friction Compensation unit 18, pre-torque unit 17 and damping compensation unit 16, the signal output part of described hoist engine velocity sensor 28 is also connected with system status parameters arithmetic element 15, the signal output part of described system status parameters arithmetic element 15 and the signal output part of hoist engine velocity sensor 28 are all connected to the signal input part of torque comparator 22, the signal output part of described torque comparator 22 connects the signal input part of damping compensation unit 16.Described hoist engine also comprises velocity feed forward unit 25, described hoist engine second speed comparator 23, described hoist engine third speed comparator 24 from gear unit 2, described two hoist engine speed regulator 10 signal output parts are connected with the signal input part of hoist engine second speed comparator 23, the signal output part of hoist engine second speed comparator 23 is connected with the signal input part of velocity feed forward unit 25, and the signal output part of described velocity feed forward unit 25 is connected with the signal input part of hoist engine third speed comparator 24.Hoist engine torque amplitude limit unit 13 is connected with between the signal output part of described torque controller 11 and the signal input part of hoist engine current regulator 14.
(2) friction pulley electric drive system
The two motors of friction pulley adopts electrical control speed sync mode to run, and its electric drive system comprises friction pulley main transmission unit 3 and friction pulley from gear unit 4, and friction pulley main transmission unit 3 and friction pulley adopt network to connect between gear unit 4.Friction pulley main transmission unit 3 comprises the first friction pulley speed ring 7.1, friction pulley comprises the second friction pulley speed ring 7.2 from gear unit 4, described first friction pulley speed ring 7.1 comprises the first friction pulley rate generator 31, first friction pulley speed comparator 35 and the first friction pulley speed regulator 32, described second friction pulley speed ring 7.2 comprises the second friction pulley rate generator 37, second friction pulley speed comparator 40 and the second friction pulley speed regulator 39, described first friction pulley speed ring 7.1 and the second friction pulley speed ring 7.2 include friction pulley current regulator 34, friction pulley ac-dc-ac frequency converter 41, friction pulley motor 42 and friction pulley velocity sensor 43, the signal output part of the first friction pulley speed regulator 32 is connected with the signal input part of friction pulley current regulator 34, the signal output part of friction pulley current regulator 34 is connected with the signal input part of friction pulley ac-dc-ac frequency converter 41, friction pulley ac-dc-ac frequency converter 41 is connected with friction pulley motor 42, the non-drive axle of ac variable-frequency electric motor 42 is provided with friction pulley velocity sensor 43, the signal output part of friction pulley velocity sensor 43 is all connected with the signal input part of the first friction pulley speed comparator 35 with the signal output part of the first friction pulley rate generator 31, the signal output part of the first friction pulley speed comparator 35 is connected with the signal input part of the first friction pulley speed regulator 32, the signal input part of the first friction pulley rate generator 31 is connected with control signal module 30.3 signal output part of the PLC30 as transmission control station.Friction pulley also comprises speed tracing comparator 36 and friction pulley velocity addition device 38 from gear unit 4, friction pulley main transmission unit 3 and friction pulley are all connected with the signal input part of speed tracing comparator 36 from the signal output part of the respective friction pulley velocity sensor 43 of gear unit 4, the signal output part of speed tracing comparator 36 is all connected with the signal input part of friction pulley velocity addition device 38 with the signal output part of the second friction pulley rate generator 37, and the signal output part of friction pulley velocity addition device 38 is connected with the signal input part of the second friction pulley speed comparator 40.In described first friction pulley speed ring 7.1, between the signal output part of the first friction pulley speed regulator 32 and the signal input part of friction pulley current regulator 34, be connected with friction pulley torque amplitude limit unit 33.In described second friction pulley speed ring 7.2, between the signal output part of the second friction pulley speed regulator 39 and the signal input part of friction pulley current regulator 34, be connected with friction pulley torque amplitude limit unit 33.
(3) transmission control station
Transmission control station adopts programmable logic controller (PLC) PLC30 to do master devices, and PLC30 comprises hoist engine velocity measuring module 30.1, friction pulley velocity measuring module 30.2, control signal module 30.3, ship reception chamber position detecting module 30.4 and ship reception chamber stroke detection module 30.5.PLC30 and adopt network to carry out Signal transmissions between hoist engine electric drive system and friction pulley electric drive system ac-dc-ac frequency converter separately, PLC30 and four overlaps position switch and all adopts cable to be connected.Described PLC30 gathers each run signal of ship lift, sends control instruction according to the operation stroke of ship reception chamber 55 and position, the opening of cooperation control hoist engine and friction pulley 54, to stop and relay drives running.Position switch in Fig. 1 and Fig. 2 comprises primary importance switch 44, second place switch 45, three position switch 46 and the 4th position switch 47.
See Fig. 3, parameter choose: choose V
1=V
2(namely ship reception chamber 55 remains unchanged on ramp and in the speed of service of the hump section of putting down); t
1=t
2(when crossing hump center, the length S=1/2V that the wire rope 52 that hoist engine is used as traction relaxes
1t
1); a
2=a
3(i.e. the deceleration of hoist engine and backward acceleration constant and equal).V
2for constant speed, namely friction pulley 54 linear velocity remains unchanged; t
1corresponding hoist engine deceleration point, i.e. the mounting points of second place switch 45; t
2corresponding hoist engine oppositely accelerates to that of normal speed.
When the utility model " inclined ship lifts relay drives electrical control gear " works, be described with ship reception chamber 55 times behaviors example composition graphs 2, when inclined ship lifts relay drives electrical control gear to run, given speed curve signal is sent by the hoist engine rate generator 8 of the hoist engine main transmission unit 1 of hoist engine electric drive system, after position control 9 regulates, give hoist engine main transmission unit 1 and the hoist engine hoist engine speed regulator 10 from gear unit 2 respectively, hoist engine speed regulator 10 output signal of hoist engine main transmission unit 1 is given torque controller 11 and is carried out computing, signal after calculation process delivers to hoist engine ac-dc-ac frequency converter 26, regulate the size of hoist engine ac-dc-ac frequency converter 26 output voltage and frequency, hoist engine drives ship reception chamber 55 to run on ramp by given speed curve, when being arranged on the collision block 48 on oblique unwheeling 56 leg and knocking the 4th position switch 47, PLC30 sends control signal, friction pulley 54 starts, given speed curve signal is sent respectively to the first friction pulley speed regulator 32 and the second friction pulley speed regulator 39 from the second friction pulley rate generator 37 of gear unit 4 by the first friction pulley rate generator 31 of friction pulley main transmission unit 3 and friction pulley, first friction pulley speed regulator 32 and the second friction pulley speed regulator 39 output signal respectively to be given each self-corresponding friction pulley current regulator 34 and carries out computing, signal after calculation process delivers to corresponding friction pulley ac-dc-ac frequency converter 41, regulate the size of friction pulley ac-dc-ac frequency converter 41 output voltage and frequency, make friction pulley 54 by given speed curve motion, ship reception chamber 55 continues to run, and when contact friction takes turns 54 to friction track 53 gradually, ship reception chamber 55 is driven jointly by hoist engine and friction pulley 54, when collision block 48 knocks second place switch 45, PLC30 sends control signal, and hoist engine reduces speed now, and drive ship reception chamber 55 to continue to run by normal speed by friction pulley 54, wire rope 52 eases out a segment length gradually, when its cross central line of ship reception chamber 55 overlaps with hump center line, hoist engine speed is kept to zero and oppositely accelerates immediately, and wire rope 52 tightens up gradually, and when tightening up completely to wire rope 52, hoist engine reaches normal speed, now ship reception chamber 55 is driven by friction pulley 54 and transfers hoist engine driving gradually to, and after friction track 53 departs from friction pulley 54, ship reception chamber 55 is driven by hoist engine, until ship reception chamber 55 runs whole stroke.
Wherein the position adjustments process of hoist engine electric drive system is: the signal feedback that the stroke sensor 29 on the winder motor 27 of hoist engine main transmission unit 1 detects is to the signal input part of position comparator 21, with the real-time speed regulating ship reception chamber 55 to run, reach accurate positioning control.
Wherein the load balancing process of hoist engine electric drive system is: hoist engine main transmission unit 1 and hoist engine compared from the output signal of the hoist engine speed regulator 10 of gear unit 2 and ask poor, then a part for difference signal is fed back to hoist engine to regulate from the hoist engine speed regulator 10 of gear unit 2, make hoist engine main transmission unit 1 have identical slope with hoist engine from the mechanical property of gear unit 2, distribute with the load balancing realized between two gear units.
Wherein the synchronous velocity control adjustment process of friction pulley electric drive system is: friction pulley main transmission unit 3 and friction pulley are incorporated into the signal input part of speed tracing comparator 36 from the signal that the friction pulley velocity sensor 43 of gear unit 4 detects, compare after asking difference and a part for difference signal is delivered to the friction pulley velocity addition device 38 of friction pulley from gear unit 4, the speed of dynamically following the tracks of friction pulley main transmission unit 3 from the speed of gear unit 4 by the second friction pulley speed comparator 40 and the second friction pulley speed regulator 39 pairs of friction pulleys regulates, reach speed sync to run.
Wherein, hoist engine main transmission unit 1 and hoist engine all adopt hoist engine torque amplitude limit unit 13 to prevent electromotor overload from gear unit 2, and friction pulley main transmission unit 3 and friction pulley all adopt friction pulley torque amplitude limit unit 33 to prevent electromotor overload from gear unit 4.
According to such scheme, adopt the alternating current variable frequency transmission device of ABB brand and the PLC30 of Schneider brand and multiple applicable control and regulation measure, form inclined ship lifts relay and drive electrical control gear, be successfully applied in the test of power station, Danjiangkou 300t level inclined ship lifts, actual motion is good, safe and reliable, meet engineering design and service requirement.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
The content be not described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. an inclined ship lifts relay drives electrical control gear, it is characterized in that: comprise hoist engine main transmission unit (1), hoist engine is from gear unit (2), friction pulley main transmission unit (3), friction pulley is from gear unit (4), PLC (30), primary importance switch (44), second place switch (45), three position switch (46) and the 4th position switch (47), described PLC (30) comprises hoist engine velocity measuring module (30.1), friction pulley velocity measuring module (30.2), control signal module (30.3) and ship reception chamber position detecting module (30.4), the signal input part of described hoist engine velocity measuring module (30.1) is connected with the signal output part of hoist engine main transmission unit (1), the signal output part of described hoist engine main transmission unit (1) is connected with the signal input part of hoist engine from gear unit (2), the signal input part of described friction pulley velocity measuring module (30.2) is connected with the signal output part of friction pulley main transmission unit (3), the signal input part of described friction pulley main transmission unit (3) is connected with the signal output part of friction pulley from gear unit (4), the signal output part of described control signal module (30.3) respectively with hoist engine main transmission unit (1), friction pulley main transmission unit (3) is connected with the signal input part of friction pulley from gear unit (4), the signal input part of described ship reception chamber position detecting module (30.4) respectively with primary importance switch (44), second place switch (45), three position switch (46) is connected with the signal output part of the 4th position switch (47).
2. inclined ship lifts relay according to claim 1 drives electrical control gear, it is characterized in that: described hoist engine main transmission unit (1) comprises position ring (5) and first hoist speed ring (6.1), described hoist engine comprises second hoist speed ring (6.2) from gear unit (2), described position ring (5) comprises hoist engine rate generator (8), location comparison device (21), position control (9) and hoist engine velocity addition device (20), described first hoist speed ring (6.1) and second hoist speed ring (6.2) include hoist engine speed regulator (10), torque controller (11), hoist engine current regulator (14), hoist engine ac-dc-ac frequency converter (26), winder motor (27) and hoist engine velocity sensor (28), described first hoist speed ring (6.1) also comprises hoist engine First Speed comparator (19), described second hoist speed ring (6.2) also comprises hoist engine third speed comparator (24), the signal input part of described hoist engine rate generator (8) is connected with the signal input part of location comparison device (21) with the signal output part of control signal module (30.3) respectively with signal output part, the signal output part of described location comparison device (21) is connected with the signal input part of position control (9), the signal output part of described position control (9) is connected with the signal input part of hoist engine velocity addition device (20), the signal output part of described hoist engine velocity addition device (20) is connected with the signal input part of hoist engine First Speed comparator (19), the signal output part of described hoist engine First Speed comparator (19) is connected with the signal input part of hoist engine speed regulator (10), the signal output part of described hoist engine speed regulator (10) is connected with the signal input part of torque controller (11), the signal output part of described torque controller (11) is connected with the signal input part of hoist engine current regulator (14), the signal output part of described hoist engine current regulator (14) is connected with the signal input part of hoist engine ac-dc-ac frequency converter (26), the signal output part of described hoist engine ac-dc-ac frequency converter (26) is connected with the signal input part of winder motor (27), the non-drive axle of described winder motor (27) is provided with hoist engine velocity sensor (28), the signal output part of described hoist engine velocity sensor (28) is connected with the signal input part of hoist engine velocity measuring module (30.1) with the signal input part of hoist engine First Speed comparator (19) respectively, the signal output part of described hoist engine velocity addition device (20) is connected with the signal input part of hoist engine third speed comparator (24), the signal output part of described hoist engine third speed comparator (24) is connected with the signal input part of hoist engine speed regulator (10), the signal output part of described hoist engine speed regulator (10) is connected with the signal input part of torque controller (11), the signal output part of described torque controller (11) is connected with the signal input part of hoist engine current regulator (14), the signal output part of described hoist engine current regulator (14) is connected with the signal input part of hoist engine ac-dc-ac frequency converter (26), the signal output part of described hoist engine ac-dc-ac frequency converter (26) is connected with the signal input part of winder motor (27), the non-drive axle of described winder motor (27) is provided with hoist engine velocity sensor (28), the signal output part of described hoist engine velocity sensor (28) is connected with the signal input part of hoist engine third speed comparator (24) respectively.
3. inclined ship lifts relay according to claim 2 drives electrical control gear, it is characterized in that: described first hoist speed ring (6.1) and second hoist speed ring (6.2) also comprise feed forward of acceleration unit (12), the signal output part of the feed forward of acceleration unit (12) in described first hoist speed ring (6.1) is connected with the signal input part of the torque controller (11) in first hoist speed ring (6.1), the signal output part of the feed forward of acceleration unit (12) in described second hoist speed ring (6.2) is connected with the signal input part of the torque controller (11) in second hoist speed ring (6.2).
4. inclined ship lifts relay according to claim 3 drives electrical control gear, it is characterized in that: described first hoist speed ring (6.1) and second hoist speed ring (6.2) also comprise damping compensation unit (16), pre-torque unit (17), Friction Compensation unit (18), torque comparator (22) and system status parameters arithmetic element (15), in described first hoist speed ring (6.1), the signal input part of described torque controller (11) respectively with damping compensation unit (16), pre-torque unit (17) is connected with the signal output part of Friction Compensation unit (18), the signal input part of described system status parameters arithmetic element (15) is connected with the signal output part of hoist engine velocity sensor (28), the signal output part of described system status parameters arithmetic element (15) is connected with the signal input part of torque comparator (22), the signal output part of described torque comparator (22) is connected with the signal input part of damping compensation unit (16), the signal output part of described hoist engine velocity sensor (28) is connected with the signal input part of torque comparator (22) with Friction Compensation unit (18) respectively, in described second hoist speed ring (6.2), the signal input part of described torque controller (11) respectively with damping compensation unit (16), pre-torque unit (17) is connected with the signal output part of Friction Compensation unit (18), the signal input part of described system status parameters arithmetic element (15) is connected with the signal output part of hoist engine velocity sensor (28), the signal output part of described system status parameters arithmetic element (15) is connected with the signal input part of torque comparator (22), the signal output part of described torque comparator (22) is connected with the signal input part of damping compensation unit (16), the signal output part of described hoist engine velocity sensor (28) is connected with the signal input part of torque comparator (22) with Friction Compensation unit (18) respectively.
5. inclined ship lifts relay according to claim 4 drives electrical control gear, it is characterized in that: described first hoist speed ring (6.1) and second hoist speed ring (6.2) also comprise hoist engine torque amplitude limit unit (13); In described first hoist speed ring (6.1), the signal input part of described hoist engine torque amplitude limit unit (13) is connected with the signal input part of hoist engine current regulator (14) with the signal output part of torque controller (11) respectively with signal output part; In described second hoist speed ring (6.2), the signal input part of described hoist engine torque amplitude limit unit (13) is connected with the signal input part of hoist engine current regulator (14) with the signal output part of torque controller (11) respectively with signal output part.
6. inclined ship lifts relay according to claim 5 drives electrical control gear, it is characterized in that: described second hoist speed ring (6.2) also comprises hoist engine second speed comparator (23) and velocity feed forward unit (25), the signal input part of described hoist engine second speed comparator (23) is connected with the signal output part of the respective affiliated hoist engine speed regulator (10) of first hoist speed ring (6.1) and second hoist speed ring (6.2) respectively, the signal output part of described hoist engine second speed comparator (23) is connected with the signal input part of velocity feed forward unit (25), the signal output part of described velocity feed forward unit (25) is connected with the signal input part of hoist engine third speed comparator (24).
7. inclined ship lifts relay according to claim 6 drives electrical control gear, it is characterized in that: described PLC (30) also comprises ship reception chamber stroke detection module (30.5), described first hoist speed ring (6.1) and second hoist speed ring (6.2) include stroke sensor (29), the signal output part of the stroke sensor (29) in described first hoist speed ring (6.1) is connected with the signal input part of location comparison device (21), the signal output part of the stroke sensor (29) in second hoist speed ring (6.2) is connected with the signal input part of ship reception chamber stroke detection module (30.5).
8. inclined ship lifts relay according to claim 1 drives electrical control gear, it is characterized in that: described friction pulley main transmission unit (3) comprises the first friction pulley speed ring (7.1), described friction pulley comprises the second friction pulley speed ring (7.2) from gear unit (4), described first friction pulley speed ring (7.1) and the second friction pulley speed ring (7.2) include friction pulley current regulator (34), friction pulley ac-dc-ac frequency converter (41), friction pulley motor (42) and friction pulley velocity sensor (43), described first friction pulley speed ring (7.1) also comprises the first friction pulley rate generator (31), first friction pulley speed comparator (35) and the first friction pulley speed regulator (32), described second friction pulley speed ring (7.2) also comprises the second friction pulley rate generator (37), second friction pulley speed comparator (40) and the second friction pulley speed regulator (39), in described first friction pulley speed ring (7.1), the signal input part of described first friction pulley rate generator (31) is connected with the signal input part of the first friction pulley speed comparator (35) with the signal output part of control signal module (30.3) respectively with signal output part, the signal output part of described first friction pulley speed comparator (35) is connected with the signal input part of the first friction pulley speed regulator (32), the signal output part of described first friction pulley speed regulator (32) is connected with the signal input part of friction pulley current regulator (34), the signal output part of described friction pulley current regulator (34) is connected with the signal input part of friction pulley ac-dc-ac frequency converter (41), the signal output part of described friction pulley ac-dc-ac frequency converter (41) is connected with the signal input part of friction pulley motor (42), the non-drive axle of described friction pulley motor (42) is provided with friction pulley velocity sensor (43), the signal output part of described friction pulley velocity sensor (43) is connected with the signal input part of friction pulley velocity measuring module (30.2) with the signal input part of the first friction pulley speed comparator (35) respectively, in described second friction pulley speed ring (7.2), the signal input part of the second friction pulley rate generator (37) is connected with the signal input part of the second friction pulley speed comparator (40) with the signal output part of control signal module (30.3) respectively with signal output part, the signal output part of described second friction pulley speed comparator (40) is connected with the signal input part of the second friction pulley speed regulator (39), the signal output part of described second friction pulley speed regulator (39) is connected with the signal input part of friction pulley current regulator (34), the signal output part of described friction pulley current regulator (34) is connected with the signal input part of friction pulley ac-dc-ac frequency converter (41), the signal output part of described friction pulley ac-dc-ac frequency converter (41) is connected with the signal input part of friction pulley motor (42), the non-drive axle of described friction pulley motor (42) is provided with friction pulley velocity sensor (43), the signal output part of described friction pulley velocity sensor (43) is connected with the signal input part of the second friction pulley speed comparator (40) respectively.
9. inclined ship lifts relay according to claim 8 drives electrical control gear, it is characterized in that: described second friction pulley speed ring (7.2) also comprises speed tracing comparator (36) and friction pulley velocity addition device (38), the signal input part of described friction pulley velocity addition device (38) is connected with the signal input part of the second friction pulley speed comparator (40) with the signal output part of the second friction pulley rate generator (37) respectively with signal output part, the signal input part of described speed tracing comparator (36) is connected with the signal output part of the respective affiliated friction pulley velocity sensor (43) of the first friction pulley speed ring (7.1) and the second friction pulley speed ring (7.2) respectively, the signal output part of described speed tracing comparator (36) is connected with the signal input part of friction pulley velocity addition device (38).
10. inclined ship lifts relay according to claim 9 drives electrical control gear, it is characterized in that: described first friction pulley speed ring (7.1) and the second friction pulley speed ring (7.2) include friction pulley torque amplitude limit unit (33); In described first friction pulley speed ring (7.1), the signal input part of described friction pulley torque amplitude limit unit (33) is connected with the signal input part of friction pulley current regulator (34) with the signal output part of the first friction pulley speed regulator (32) respectively with signal output part; In described second friction pulley speed ring (7.2), the signal input part of described friction pulley torque amplitude limit unit (33) is connected with the signal input part of friction pulley current regulator (34) with the signal output part of the second friction pulley speed regulator (39) respectively with signal output part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562708.1U CN204199265U (en) | 2014-09-26 | 2014-09-26 | A kind of inclined ship lifts relay drives electrical control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562708.1U CN204199265U (en) | 2014-09-26 | 2014-09-26 | A kind of inclined ship lifts relay drives electrical control gear |
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| Publication Number | Publication Date |
|---|---|
| CN204199265U true CN204199265U (en) | 2015-03-11 |
Family
ID=52657240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420562708.1U Withdrawn - After Issue CN204199265U (en) | 2014-09-26 | 2014-09-26 | A kind of inclined ship lifts relay drives electrical control gear |
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| Country | Link |
|---|---|
| CN (1) | CN204199265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278664A (en) * | 2014-09-26 | 2015-01-14 | 长江勘测规划设计研究有限责任公司 | Relay driving type electrical control device of inclined ship lift |
| CN110387864A (en) * | 2019-08-24 | 2019-10-29 | 华北水利水电大学 | A kind of ship reception chamber inclined-plane transportation system |
-
2014
- 2014-09-26 CN CN201420562708.1U patent/CN204199265U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278664A (en) * | 2014-09-26 | 2015-01-14 | 长江勘测规划设计研究有限责任公司 | Relay driving type electrical control device of inclined ship lift |
| CN104278664B (en) * | 2014-09-26 | 2016-07-06 | 长江勘测规划设计研究有限责任公司 | A kind of inclined ship lifts relay drives electrical control gear |
| CN110387864A (en) * | 2019-08-24 | 2019-10-29 | 华北水利水电大学 | A kind of ship reception chamber inclined-plane transportation system |
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