CN208747522U - For promoting the intelligent winding plant of descending mechanism - Google Patents
For promoting the intelligent winding plant of descending mechanism Download PDFInfo
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- CN208747522U CN208747522U CN201821220384.8U CN201821220384U CN208747522U CN 208747522 U CN208747522 U CN 208747522U CN 201821220384 U CN201821220384 U CN 201821220384U CN 208747522 U CN208747522 U CN 208747522U
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Abstract
The utility model discloses a kind of for promoting the intelligent winding plant of descending mechanism comprising: reel winds the wirerope for promoting load vehicle thereon；With the power mechanism of the input axis connection of reel；Furthermore, further includes: be arranged on the output shaft of the reel and be used to provide the spot-type disc brake of brake force for the reel of rotation；The information collection element of the movement speed and location information for acquiring load vehicle of the shaft end of reel output shaft is set；It is used to provide the hydraulic system of hydraulic oil with what multiple hydraulic oil ports of spot-type disc brake were respectively communicated with；The charge oil pressure of hydraulic system is adjusted with the information for acquiring according to information collection element that hydraulic system and information collection element are separately connected to adjust the control system of the braking moment of spot-type disc brake.The device of the utility model, spot-type disc brake directly brake reel output shaft, and braking moment is big and adjustable, are suitable for the braking to big load, improve the deceleration to load vehicle and braking effect.
Description
Technical field
The utility model relates to field of mechanical technique, in particular to a kind of intelligent elevator for promoting descending mechanism fills
It sets.
Background technique
In the prior art, when carrying out collision experiment to the big load vehicle of weight, frequently with system as shown in Figure 1 along tiltedly
Slope is promoted and release descending mechanism comprising: driving unit 200, fixed pulley 206 and wirerope 201 with wirerope 201
The release device 207 of end connection, the load vehicle 202 being detachably connected with release device 207, the setting rolling of 202 bottom of load vehicle
Wheel 203, the release device for connecting load vehicle and wirerope is lever release device.Wherein, using hoist engine as driving unit,
When reel rotates, the load vehicle 202 that load is T is promoted or declined along track slope 204 by wirerope.
Descending mechanism such as load vehicle is promoted frequently with steel wire rope winch as shown in Figure 2 in the prior art comprising: bottom
Seat 107 ', passes through drum-type shaft coupling 103 ' and the output axis connection of motor 101 ' at the motor 101 ' being mounted on pedestal 107 '
The reel 106 ' of the output axis connection of speed reducer 104 ' and speed reducer 104 ' and the normally closed braking being mounted on shaft coupling 103 '
Device 102 '.
It is had a characteristic that using structure shown in Fig. 2 since normally engaged brake 102 ' generallys use drum brake
After brake release power stops working, still has braking function, after the debugging of tripping spring installation length is fixed, spring force is solid
Fixed constant (i.e. the braking moment of brake is fixed and invariable).Therefore, make to brake according to the control mode of the prior art
There are following hidden danger for device braking: slowing down if (1) slowing down using electric braking, after power-off or failure, dependence is normally closed
Brake is implemented braking, is maintained, and can not achieve buffering friction catch: as brake torque is larger, it may appear that the shape of unexpected locking
State impacts damaging property of system, as brake torque is insufficient, in fact it could happen that the case where can not braking.(2) if it is normally closed
Formula brake breaks down, then brake cannot discharge, and causes promotion descending mechanism that cannot move, and maintenance needs the regular hour,
It cannot be guaranteed that disposable complete movement.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides a kind of for promoting the intelligent elevator of descending mechanism
Device.
It is provided by the utility model for promoting the intelligent elevator of descending mechanism for the above-mentioned purpose for realizing the utility model
Device, comprising: reel winds the wirerope for promoting load vehicle thereon；With the input axis connection of reel for driving volume
The power mechanism of cylinder rotation；Furthermore, further includes: be arranged on the output shaft of the reel and be used to provide system for the reel of rotation
The spot-type disc brake of power；The movement speed and location information for being used to acquire load vehicle of the shaft end of reel output shaft are set
Information collection element；It is used to provide the hydraulic pressure system of hydraulic oil with what multiple hydraulic oil ports of spot-type disc brake were respectively communicated with
System；Hydraulic pressure system is adjusted with the information for acquiring according to information collection element that hydraulic system and information collection element are separately connected
The charge oil pressure of system is to adjust the control system of the braking moment of spot-type disc brake.
Wherein, the information collection element is encoder.
Wherein, the spot-type disc brake is brake open in usual.
Wherein, the hydraulic system includes total oil feed line and is respectively connected with total oil feed line and multiple hydraulic oil ports logical
Multiple points of oil feed lines, provide hydraulic oil respectively to multiple hydraulic oil ports by multiple points of oil feed lines.
Preferably, the hydraulic system divide on oil feed line be provided with corresponding hydraulic oil port be connected for controlling
System divides the solenoid directional control valve of oil feed line on-off.
Further, the hydraulic system divide on oil feed line be additionally provided with connect with solenoid directional control valve for adjusting
Divide the proportional pressure-reducing valve of the charge oil pressure of oil feed line.
Wherein, total oil feed line of the hydraulic system is main oil sources, is provided on pipeline for adjusting total fuel feed pump
The pressure on road simultaneously makes the constant electromagnetic relief valve of pressure set up, the oil pump being connected with fuel tank and for driving operation of oil pump
Motor.
Further, the hydraulic system further includes in parallel with the main oil sources for mentioning after main oil sources runs out of steam
For the emergency oil sources of stand-by power.
Preferably, the emergency oil sources includes multiple points of emergency lines of connection corresponding with the multiple point of oil feed line,
Each emergency line is divided to include for providing the accumulator and pressure switch of emergency pressure oil.
Wherein, the control system includes programmable logic controller (PLC) PLC and human-computer interaction circle with PLC two-way communication
Face, wherein the control signal of PLC and encoder, the frequency converter being connect with the driving motor of power mechanism and the hydraulic pressure system
The pressure switch of system connects, the control output end of PLC and electromagnetic relief valve, proportional pressure-reducing valve, the electromagnetic switch of hydraulic system
Valve, motor connection.
Compared with prior art, the intelligent winding plant for promoting descending mechanism of the utility model has following excellent
Point:
1, the intelligent winding plant of the utility model, spot-type disc brake directly brake reel output shaft, brake force
Square is big, is suitable for the braking to big load, and the deceleration to reel and load vehicle and braking effect is greatly improved.
2, the intelligent winding plant of the utility model, since spot-type disc brake is mounted on power output end, both made reel,
Other elements such as motor break down, and braking purpose can also be realized by spot-type disc brake, improves and promotes release big load
Security performance.
3, the intelligent winding plant of the utility model, spot-type disc brake are clipper disk brake open in usual, can be mended automatically
The abrasion of brake liner is repaid, compensation performance is reliable, is the automatic repairing of hydraulic system energy of its fuel feeding, improves brake
Functional reliability and service life.
4, the intelligent winding plant of the utility model, control system pass through electromagnetic relief valve, proportional pressure-reducing valve, electromagnetic switch
Valve carries out quantization adjusting to braking moment of the spot-type disc brake in working condition, may be implemented to impact velocity and distance
Accurate control, reduces workload, guarantees stopping power.
The utility model is described in detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the schematic diagram for the intelligent winding plant that the prior art is used to be promoted descending mechanism；
Fig. 2 is the structure chart for the intelligent winding plant that the prior art is used to be promoted descending mechanism；
Fig. 3 is the main view of the utility model embodiment intelligence winding plant；
Fig. 4 is the top view of intelligence winding plant shown in Fig. 3；
Fig. 5 is the main view of the utility model embodiment spot-type disc brake；
Fig. 6 is the K-K direction view of spot-type disc brake shown in Fig. 5；
Fig. 7 is the perspective view of spot-type disc brake shown in Fig. 5；
Fig. 8 is the control principle drawing of the intelligent winding plant for promoting descending mechanism of the utility model embodiment；
Fig. 9 is the hydraulic schematic diagram of the hydraulic system of the utility model embodiment.
Specific embodiment
As shown in Figure 3, Figure 4, the respectively main view and top view of the utility model embodiment intelligence winding plant, by scheming
3, Fig. 4 is it is found that provided by the embodiment of the utility model for promoting the intelligent winding plant of descending mechanism, comprising: reel 105,
The wirerope for promoting load vehicle is wound thereon；With the input axis connection of reel 105 for driving the dynamic of the rotation of reel 105
Force mechanisms；Furthermore, further includes: the reel 105 for being rotation being arranged on the output shaft of reel 105 provides the pincers of brake force
Disk brake 106；Be arranged in the shaft end of 105 output shaft of reel for acquiring the movement speed and location information of load vehicle
Information collection element 107；It is used to provide the hydraulic of hydraulic oil with what multiple hydraulic oil ports of spot-type disc brake 106 were respectively communicated with
System；The information tune for being acquired according to information collection element 107 being separately connected with hydraulic system and information collection element 107
The charge oil pressure of hydraulic system is saved to adjust the control system of the braking moment of spot-type disc brake 106.It should be noted that
The descending mechanism of the present embodiment is only by taking the load vehicle with big load as an example, further, it is also possible to using other with big load
Mechanism, such as spacecraft, metallurgical equipment.
Specifically, the one ends wound of the wirerope of the present embodiment intelligence winding plant is on reel 105, wirerope it is another
It holds for being directly connected to be hoisted and release load vehicle, will pass through the winding or releasing that the rotation of reel drives wirerope
Winding achievees the purpose that promotion or release load vehicle.
Use as shown in Figure 1 by the way of connecting the wirerope other end with load vehicle always, with the prior art
The method of release device release load vehicle is compared, and after carrying out release test, the present embodiment is not required to reconnect wirerope and carry
Lotus vehicle, and due to the effect of load car weight power, so that disorder cable phenomenon will not occur on reel for wirerope after release, thus pole
It is big to reduce operation element amount.It wherein, can be by the way of being fixedly connected, such as in load vehicle when load vehicle being connect with wirerope
Connecting pin be arranged latch closure, by the direct binding and fixing of the other end of wirerope on latch closure；Alternatively, can also be direct by wirerope
Binding is on the bottom beam of load vehicle；It is of course also possible to use other connection structures of the prior art.
Wherein, the present embodiment drives reel 105 to rotate by power mechanism, which includes: support 108；Installation
Motor 101 on support 108, the motor 101 are the driving motor with frequency converter；The output shaft of one end and motor 101
It connects, the shaft coupling 102 of the input axis connection of its other end and speed reducer 103；The output shaft of its input shaft and speed reducer 104 connects
The reel 105 connect.Spot-type disc brake 106 is mounted on the output shaft of reel 105, as shown in Figure 5-Figure 7, is had and is mounted on volume
Brake disc 1061, the brake caliper anchor plate 1063 of installation on the disc brake rotor on the output shaft of cylinder, are mounted on caliper installation
Multiple calipers 1062 on bracket, caliper 1062 have the hydraulic oil port for entering for hydraulic oil.
Wherein, the spot-type disc brake 106 of the present embodiment is brake open in usual, and spot-type disc brake is mounted on reel
On output shaft, structure and the prior art can refer to the mounting means of reel, details are not described herein.When the reel of rotation needs
When braking, braking moment can be directly provided by spot-type disc brake, reel is made to stop rotating.Since the present embodiment passes through reel
Rotate and upgrade with big load load vehicle (load vehicle be be similar to spacecraft weight object), according to existing skill
The scheme of art being mounted on normally closed brake such as drum brake on the transmission shaft between motor and speed reducer, can not provide
Big braking moment, and braking moment is unadjustable, can not accurately brake, and installed on reel output shaft often using the present embodiment
The scheme of open type spot-type disc brake can directly brake reel, and braking moment is big, is suitable for the braking of big load, and
And braking moment is adjustable, and the deceleration to reel and braking effect is greatly improved.Also, since spot-type disc brake is mounted on power
Output end had both made other elements such as reel, motor break down, and braking purpose can also be realized by spot-type disc brake, is improved
Promote the security performance of release big load.In addition, release system when clipper disk brake open in usual provides brake force, oil-break in fuel feeding
Power, so as to the abrasion of automatic compensation brake brake rim, compensation performance is reliable, is that the hydraulic system of its fuel feeding can be certainly
Dynamic repairing, improves functional reliability and service life.
Wherein, the braking moment of caliper disc brake disc is calculated using following formula:
The braking moment of brake disc=brake force x brake disc radius (formula 1)
Brake force is calculated using following formula:
Brake force=hydraulic cylinder piston thrust x coefficient of friction (formula 2)
Piston thrust is calculated using following formula:
Piston thrust=piston area x hydraulic fluid pressure (formula 3)
Wherein, above (formula 1)-(formula 3) is existing formula, is no longer related to parameter to formula herein and is described in detail.
Hydraulic fluid pressure is the basic original for determining brake torque size it can be seen from (formula 1)-(formula 3)
Cause.
In order to realize the conveying of each hydraulic oil port from the spot-type disc brake to the course of work hydraulic fluid pressure
It adjusts with control, to realize accurate adjusting of the brake to mobile target braking force, the present embodiment uses information collection element
107 acquisition load vehicles movement speed and location information, so as to by collected information with preset speed compared with stroke value
Compared with, and according to the braking moment of comparison result adjusting spot-type disc brake.Wherein, information collection element uses encoder, assembling
When, encoder can be mounted on to the shaft end of reel output shaft.
Encoder can use rotary encoder, such as photoelectric rotary coder, by photoelectric conversion, by rotary shaft
The mechanical quantities such as angular displacement, angular speed be converted into corresponding electric pulse with digital output to control system PLC (such as Fig. 8 institute
Show), PLC determines the movement speed and stroke of load vehicle according to the information of acquisition, and according to determining movement speed and stroke pair
The hydraulic system being connected with multiple hydraulic oil ports of spot-type disc brake is controlled, so as to hydraulic system to each hydraulic
The charge oil pressure of hydraulic fluid port is adjusted, and adjusts spot-type disc brake to the purpose of the brake force of braking target to realize.Wherein,
Angular speed of reel rotary shaft etc. is detected by encoder to obtain the movement speed and stroke of the load vehicle interlocked with reel
It is obtained using prior art formula.
It should be noted that encoder also can choose peace other than it can choose the shaft end for being mounted on reel output shaft
Mounted in the shaft end of motor output shaft.Wherein, it is selectively mounted to the shaft end of reel output shaft, measurement is more direct, does not need speed ratio
Conversion, but encoder needs to select lifting class heavy type encoder, has certain protecting against shock performance.Encoder is defeated mounted in motor
The shaft end of shaft, impact is small, but needs to be converted according to speed reducer speed ratio, and there are the wind that error amplification, progress are not high enough
Danger.Therefore, encoder is mounted on the shaft end of reel output shaft by the present embodiment.Wherein, as shown in figure 8, the control of the present embodiment
System includes programmable logic controller (PLC) PLC and the human-computer interaction interface with PLC two-way communication, wherein the control signal of PLC
With encoder, the frequency converter being connect with the driving motor of power mechanism and for providing the hydraulic of hydraulic oil for spot-type disc brake
The pressure switch of system connects, and the control output end of PLC and other components of hydraulic system connect.
Wherein, the present embodiment for for the hydraulic system that spot-type disc brake provides hydraulic oil include total oil feed line with
Multiple points of logical oil feed lines are respectively connected with total oil feed line and multiple hydraulic oil ports, by multiple points of oil feed lines to multiple
Hydraulic oil port provides hydraulic oil respectively.In addition, hydraulic system further includes in parallel with main oil sources for running out of steam in main oil sources
The emergency oil sources of stand-by power is provided afterwards.
When design, spot-type disc brake can use multiple calipers 1062, and each caliper 1062 is hydraulic with one
Hydraulic fluid port, and the hydraulic oil port of each caliper is connected with a point of oil feed line of hydraulic system.Due to spot-type disc brake
With multiple calipers, PLC can be realized by controlling one or more brakings in multiple calipers to the big of braking target
Braking moment and braking by grades.
Wherein, spot-type disc brake can use 2 or 4 or more calipers, and the present embodiment is only using 4 systems
Hydraulic system is illustrated for dynamic pincers, but needs to illustrate, those skilled in the art can be according to the load condition for promoting load vehicle
It is appropriate to increase caliper quantity, and hydraulic system according to the present embodiment carries out the hydraulic system with other quantity calipers
Extension.
Specifically, as shown in figure 9, total oil feed line is used as the main oil sources to spot-type disc brake offer power,
The electromagnetic relief valve 13 and fuel tank for being provided with the pressure for adjusting total oil feed line on its pipeline and keeping the pressure set up constant
The oil pump 7 being connected and the motor 6 for driving oil pump 7 to work；Wherein, electromagnetic relief valve 13 and motor 6 are with control respectively
System PLC's controls the control output end of electromagnetic relief valve action command and for exporting control motor action instruction for exporting
Control output end connection.Preferably, the present embodiment PLC passes through collection electric machine soft starting, soft stop, light-load energy saving and a variety of protection function
Motor 6 can be started in the soft activator of one.
The present embodiment hydraulic system divide on oil feed line be provided with corresponding hydraulic oil port be connected for controlling
System divide oil feed line on-off solenoid directional control valve 16, connect with solenoid directional control valve 16 be used for adjust divide oil feed line for oil pressure
The control for exporting control 16 action command of solenoid directional control valve of the proportional pressure-reducing valve 15 of power, solenoid directional control valve 16 and PLC is defeated
Outlet connection, proportional pressure-reducing valve 15 are connect with the control output end for exporting PID regulating command of PLC.
The fuel tank for storing hydraulic oil passes through hydraulic oil port of two total oil feed lines on four calipers with brake
Four points of oil feed line fuel feeding of connection, a total oil feed line are the straight-through pipeline that ball valve 14 is arranged on it, a total confession
Oil pipe line is the working line that multiple element is arranged thereon.Wherein, the ball valve 14 of straight pipe road can use manual ball valve,
Electrical ball valve can be used, it is preferred that the ball valve 14 uses manual ball valve, uses when as system overhaul.And the present embodiment
Other ball valves 14 can use electrical ball valve.Pipeline is led directly to as spare duct, that is, the ball valve 14 of straight pipe road is often in will
The state that straight-through pipeline disconnects, and working line is in normal operating condition.
Wherein, on working line, from fuel tank to be used for to the hydraulic oil port of each caliper conveying hydraulic oil liquid
Following components are disposed on four points of oil feed lines that cylinder pressure 19 is connected: being set respectively on the fuel tank of storage hydraulic oil
Fluid level indicator 1, air cleaner 2, electric contact thermometer 3, oil absorption filter 4 are set, pump 7 passes through shock-absorbing connection 5 and fuel tank
Oil outlet connection, pump 7 rotate under the driving of motor 6, and the oil outlet of pump 7 is connect with hose 8, to pump in 7 absorption fuel tanks
Hydraulic oil after by hose 8 to the hydraulic oil port of caliper pump.Wherein, check valve 9 is set on hose 8, in hose 8
It is arranged and the high-pressure mini hose 11 tapped with hose 8 is respectively set at two forward and backward positions of check valve 9, and at every
Pressure gauge 10 and pressure sensor 12 are set on high-pressure mini hose 11, passing through check valve 9 to detect the hydraulic oil in hose 8
Oil pressure at forward and backward position.In addition, also setting up electromagnetic relief valve 13 at the position before check valve 9 in hose 8.
Ball valve 14, check valve 9 are also set gradually on hose 8 after check valve 9, ball valve 14 uses electrical ball valve.Hose 8 will
Hydraulic oil through check valve 9 feeds to four hydraulic cylinders 17 by four points of oil feed lines respectively.
Wherein, every is divided on oil feed line the oil for being disposed with proportional pressure-reducing valve 15, detection after proportional pressure-reducing valve 15
The solenoid directional control valve 17 that pressure sensor 12, its pressure oil port P of pressure are connected to the oil inlet A of proportional pressure-reducing valve 15, electromagnetism changes
It is connected to the oil transportation mouth of valve 17 by hose 18 with the oil inlet of hydraulic cylinder 19, which is the system of spot-type disc brake
The hydraulic cylinder of dynamic pincers.In addition, also setting up pressure gauge 18 on hose 8.
The demand of Braking system when to solve power electric power-off, system design have the emergency oil sources in parallel with main oil sources, such as
Shown in Fig. 9.And as after main oil sources runs out of steam provide stand-by power emergency oil sources, including with multiple points of oil feed lines pair
The multiple points of emergency lines in parallel that should be connected to, each of which divides emergency line to include that accumulator connecting line and oil return and safety are protected
Pillar road.
Accumulator connecting line is used for the oil inlet of accumulator 20 and the proportional pressure-reducing valve 15 of a corresponding point of oil feed line
Mouth B is connected, and provides emergency pressure oil as the brake block oil cylinder 17 of caliper will pass through point oil feed line comprising accumulator
20, pipeline and the ball valve 14 being arranged in pipeline.
Oil return and safeguard protection pipeline include pressure switch pipeline in parallel, pressure detecting pipeline and in parallel by two
Pipeline is connected with the oil return opening Y of proportional pressure-reducing valve 15 of a corresponding point of oil feed line, the oil return inlet T of solenoid directional control valve 16
Connecting pipeline.
Wherein, pressure switch pipeline includes pressure switch 21, pipeline, the ball valve 14 being arranged in pipeline, the pipeline
Using high-pressure hose 11；Pressure detecting pipeline includes pressure gauge 10, pipeline, the ball valve 14 and overflow valve 19 being arranged on pipeline；
Connecting pipeline includes pipeline and the check valve 9 that is arranged in pipeline.
Further, pressure detecting pipeline further includes the pressure sensor pipeline in parallel with pressure gauge 10, including pressure passes
Sensor 22 and pipeline.Wherein, pass through hose simultaneously between pressure switch 21, pressure gauge 10, pressure sensor 22 and accumulator 20
Connection.
It wherein, is the safety for guaranteeing whole system under power failure state, the present embodiment PLC, proportional pressure-reducing valve 15, electromagnetism change
It is equipped with UPS power supply to the equal core components of valve 16, due to being that control is electric, required UPS power is small, it is easy to accomplish.
After main oil sources runs out of steam electricity, the motor 6 of main oil sources can not start generation pressure oil, can not be a point oil feed line
Fuel feeding can make spot-type disc brake that can not brake.And since PLC, proportional pressure-reducing valve 15, solenoid directional control valve 16 are powered by UPS,
In the case where the main unpowered electricity of oil sources, PLC, proportional pressure-reducing valve 15, solenoid directional control valve 16 still can work.In main oil sources without dynamic
In the case where power, the accumulator 20 that PLC according to circumstances controls multiple points of emergency lines of emergency oil sources works, by multiple accumulators
20 continue to brake spot-type disc brake to each point of oil feed line offer pressure oil, guarantee the safety of whole system.And work as
After power supply system restores electricity, the pressure switch 21 for oil sources of meeting an urgent need provides signal for PLC, and the work of PLC driving motor 6 is accumulation of energy
Device 20 supplements pressure, completes the reservation for pressure of accumulator 20, and after reservation for pressure is to setting value, pressure switch 21 mentions for PLC
Pressure no longer is supplemented to accumulator 20 for signal.At this point, being each point of oil feed line fuel feeding by main oil sources.Wherein, accumulator
Pressure can be detected by pressure sensor, pressure gauge.
Wherein, when spot-type disc brake brakes the reel in rotary course, PLC is fast according to the angle that acquisition reel rotates
The relevant information of degree controls hydraulic system: exporting control instruction to electromagnetic relief valve, will pass through electromagnetic relief valve tune
Save the charge oil pressure of total oil feed line；PID regulating command is exported to one or more of four proportional pressure-reducing valves, will pass through
Proportional pressure-reducing valve adjusts the charge oil pressure of each point of oil feed line；Control instruction is exported to one or more in four solenoid directional control valves
It is a, will pass through the on-off that solenoid directional control valve controls each point of oil feed line, that is, control the hydraulic oil conveyed to corresponding hydraulic cylinder
Pressure；And emergency oil sources and other each element movements are controlled according to the signal of pressure switch.By above-mentioned control, make each hydraulic
The piston of cylinder executes corresponding actions, adjusts the charge oil pressure to corresponding caliper hydraulic oil port, and brake is made to generate corresponding system
Power, to braking target retarding braking, until braking target is moved with command speed and apart from stopping.
The PLC of the present embodiment detects the collected speed signal of encoder and position signal, according to testing result
The motor 6 of hydraulic system, electromagnetic relief valve 13, solenoid directional control valve 16 and proportional pressure-reducing valve 15 are controlled, adjusted by PID
Proportional pressure-reducing valve 15 realizes the real-time control that hydraulic oil is conveyed in pipeline, to accurately control the deceleration of spot-type disc brake
Journey can accomplish accurately to control to braking deceleration, braking time (time of brake operation is braking time), braking distance etc.
System, that is, by controlling the size of braking moment, determine the size and braking distance of braking deceleration.
Due to the present embodiment PLC can proportional pressure-reducing valve 15 to the hydraulic oil port fuel feeding for each caliper respectively into
Row is adjusted, therefore the intelligent control to spot-type disc brake may be implemented, so that four calipers can with independent brake or simultaneously
Braking realizes that the real-time adjusting to brake controls, can be realized big braking moment or braking by grades, keep the effect of braking more
Sample, more controllably.In addition, adjusting the charge oil pressure to four calipers respectively by four proportional pressure-reducing valves, may be implemented to system
Compensation after dynamic device heat fading, it is ensured that the stopping power of brake.
Wherein, PLC is to motor 6, electromagnetic relief valve 13, solenoid directional control valve 16, proportional pressure-reducing valve 15, pressure switch 21 etc.
Acting the circuit controlled can be realized by prior art circuits.
In the following, being described to being promoted using the present embodiment intelligence winding plant with the method for release descending mechanism, the party
Method includes:
By the setting information acquisition elements on the output shaft of intelligent winding plant reel, acquisition passes through the steel wire on reel
The movement speed and location information for the load vehicle that rope is promoted；
By the way that spot-type disc brake is arranged on the output shaft of the reel, brake force is provided for mobile load vehicle；
By by the multiple hydraulic oil ports of spot-type disc brake and with electromagnetic relief valve, proportional pressure-reducing valve and solenoid directional control valve
Hydraulic system be separately connected, provide hydraulic oil for spot-type disc brake；
By the way that hydraulic system, information collection element and control system to be separately connected, so that control system is according to load vehicle
Movement speed and the location information control electromagnetic relief valve of hydraulic system, proportional pressure-reducing valve and solenoid directional control valve in one or
Multiple movements adjust hydraulic system to the charge oil pressure of spot-type disc brake, to adjust spot-type disc brake to load vehicle
Braking moment.
Above-mentioned intelligent winding plant is assembled first: by the one ends wound of wirerope on reel, by the another of wirerope
One end is directly connect with load vehicle, and spot-type disc brake is mounted on reel output shaft, and encoder is mounted on reel output
Each hydraulic oil port of spot-type disc brake is connect by the shaft end of axis with hydraulic system, by hydraulic system, information collection element and control
System processed is separately connected.Wherein, information collection element is above-mentioned encoder, and spot-type disc brake is above-mentioned braking open in usual
Device, control system include above-mentioned PLC and human-computer interaction interface.
When adjusting spot-type disc brake to the braking moment of load vehicle by control system, the PLC of control system according to
The travel information of the collected load vehicle of encoder, controls the on-off of solenoid directional control valve, so that load vehicle is promoted with pre-set velocity
Or release preset strokes.
S01, uphill process: after the PLC of control system receives promotion instruction, according to the collected load vehicle of encoder
Travel information, control the on-off of solenoid directional control valve so that load vehicle with pre-set velocity promoted preset strokes.
S11, when needing to promote the load vehicle at the application position below the slope, the PLC for passing through control system drives
The dynamic frequency converter being connect with the driving motor of power mechanism, to control driving motor starting；
S12, when driving motor starts and its driving force reaches zero-speed holding load, (driving force reaches load when zero-speed is kept
Lotus refers to the weight of load vehicle, and zero-speed holding refers to that transducer drive motor realizes nominal torque under zero velocity), PLC is to more
A solenoid directional control valve for dividing oil feed line instructs, will divide oil feed line to spot-type disc brake fuel feeding by solenoid directional control valve
Oil circuit disconnect so that spot-type disc brake open in usual is by reset spring driving release to the brake force of reel；
S13, after spot-type disc brake release is to the brake force of reel, driving motor increases torque, passes through driving motor
The rotation of zone of action movable reel, make wirerope-winding on reel, load vehicle promoted with the winding of wirerope with default
Speed is lifted up from application position.Wherein, motor characteristic curve is first straight line, linea obliqe posterior rises, straight line, frequency converter give drive again
Dynamic one speed n of motor, corresponding torque M, when detecting turn up less than n, frequency converter increases driving motor speed automatically, until
Torque reaches torque M, and when Motor torque arrival torque M, it is human-computer interaction that reel, which rotates the promotion speed with dynamic loading vehicle,
The default promotion speed of interface setting；
S14, during being lifted up load vehicle, encoder acquires the travel information of load vehicle and by its Real-time Feedback
To PLC, after load vehicle is elevated preset strokes (at the position of the human-computer interaction interface setting i.e. on arrival slope), pass through
PLC control solenoid directional control valve will divide the oil circuit of oil feed line to open, and the hydraulic oil of high pressure, caliper disc are passed through to spot-type disc brake
Four calipers of brake jointly brake reel, while the power supply for cutting off driving motor makes driving motor stop working, from
And load vehicle is made to stop to default raised position.
S02, decline process: after the PLC of control system, which is received, to release order, according to the collected load vehicle of encoder
Travel information, control the on-off of solenoid directional control valve so that load vehicle with pre-set velocity discharge preset strokes.
S21, when needing to discharge the load vehicle in default raised position, the PLC for passing through control system drives frequency converter
Control the driving motor starting of power mechanism；
S22, when driving motor starting and its driving force reach zero-speed keep load when, solenoid directional control valve is controlled by PLC
Hydraulic system is disconnected to the oil circuit of spot-type disc brake fuel feeding, so that spot-type disc brake release is to the brake force of reel；
S23, after spot-type disc brake release is to the brake force of reel, rotated by driving motor band movable reel, make to carry
Lotus vehicle accelerates to glide downwards along slope from default raised position under the effect of gravity, at this time band of the reel in load vehicle
It is rotated under dynamic；
S24, downwards release load vehicle during, can since reel is rotated under the drive of load vehicle
The speed and stroke of the release of load vehicle are detected by encoder, and are fed back to PLC, and PLC passes through the load vehicle obtained
Stroke and velocity information control solenoid directional control valve open oil circuit, brake spot-type disc brake to reel, load vehicle is made to slow down.
Wherein, PLC controls solenoid directional control valve by the stroke and velocity information of the load vehicle obtained and opens oil circuit, makes to clamp
Disk brake brakes reel, includes the following steps: the deceleration of load vehicle
During release load vehicle downwards, PLC obtains the present speed that load vehicle is run by encoder；
The present speed for the load vehicle that will acquire by the speed comparison module of PLC is compared with maximum allowable rate of release
Compared with；
If present speed is greater than maximum allowable rate of release, PLC control solenoid directional control valve opens oil circuit, so as to hydraulic
Oil enters the hydraulic oil port of spot-type disc brake, so that spot-type disc brake brakes reel, enables load vehicle slow down, to be no more than
Maximum allowable rate of release, the maximum allowable rate of release are the pre-set velocity value on human-computer interaction interface.
During release load vehicle downwards, PLC is obtained except through encoder outside the present speed of load vehicle, also logical
The current stroke that encoder obtains load vehicle is crossed, the current stroke for the load vehicle that will acquire by stroke comparison module is released with setting
It puts braking distance to compare, if current stroke is greater than setting release braking distance, PLC control solenoid directional control valve beats oil circuit
It opens, being braked with will pass through spot-type disc brake to reel, load vehicle being made to slow down.
Wherein, PLC is changed in addition to the current stroke of load vehicle and present speed information the control electromagnetism obtained according to encoder
Except opening oil circuit to valve, current stroke and present speed information also according to load vehicle send PID regulating command to multiple
Divide multiple proportional pressure-reducing valves of oil feed line, will pass through multiple liquid that multiple proportional pressure-reducing valves adjust spot-type disc brake respectively
The charge oil pressure of press oil port makes load vehicle slow down.
The present embodiment spot-type disc brake is provided with 4 calipers, it is assumed that is caliper A, B, C, D, each caliper can
Individually to adjust charge oil pressure, when braking, can set the brake block of starting respective numbers according to deceleration, to meet braking moment
Demand.Assuming that caliper A can be enabled when needing small braking moment, when needing big braking moment, if caliper A is enlarged to maximum
Oil pressure is still unable to satisfy brake request, then can enable caliper B and carry out Associated brake；If caliper A, B Associated brake are still
It is unable to satisfy brake request, then caliper C, D mutual association is braked.Under normal circumstances, caliper C, D is as warm back-up.
And during making load vehicle run slowly the braking of load vehicle using spot-type disc brake, also pass through encoder
The deceleration and stroke of load vehicle are obtained, if the deceleration of load vehicle is made to be more than default deceleration after spot-type disc brake braking,
Then PLC sends instructions to electromagnetic relief valve, will pass through the charge oil pressure that electromagnetic relief valve increases total oil feed line hydraulic oil, mentions
High braking moment guarantees load vehicle when reaching setting releasing position, and gradual braking is accurate to stop.
When so that load vehicle is slowed down reel braking using spot-type disc brake, the maximum deceleration of load vehicle must not exceed people
The maximum braking deceleration of the mutual interface setting of industry and traffic avoids emergency braking from generating impact failure to system.During decline, pincers
The braking moment of disk brake should be able to make load vehicle in the fortune after running preset strokes (when reaching default position of collision)
Scanning frequency degree reaches maximum allowable rate of release.In general, maximum allowable rate of release preset impact velocity when being impact test.
The present embodiment is according to tribology principle, after spot-type disc brake continuous work, with brake disc surface frictional heat generation,
Temperature increases, and when friction material contacts friction with friction plate, coefficient of friction can be reduced as temperature increases.The present embodiment is to pincers
The hydraulic system of disk brake is controlled, and by adjusting hydraulic fluid pressure, is realized that frictional force does not reduce, is guaranteed effect of slowing down
Fruit, being equivalent to realizes quantitative compensation.In addition, under same release altitude, same load, it can be by adjusting hydraulic system pair
The charge oil pressure of spot-type disc brake reaches different buckles adjustment, compares conducive to all kinds of buckles are carried out.
Compared with prior art, the intelligent winding plant for promoting descending mechanism of the utility model has following excellent
Point:
1, the intelligent winding plant of the utility model, spot-type disc brake directly brake reel output shaft, brake force
Square is big, is suitable for the braking to big load, and the deceleration to reel and load vehicle and braking effect is greatly improved.
2, the intelligent winding plant of the utility model, since spot-type disc brake is mounted on power output end, both made reel,
Other elements such as motor break down, and braking purpose can also be realized by spot-type disc brake, improves and promotes release big load
Security performance.
3, the intelligent winding plant of the utility model, spot-type disc brake are clipper disk brake open in usual, can be mended automatically
The abrasion of brake liner is repaid, compensation performance is reliable, is the automatic repairing of hydraulic system energy of its fuel feeding, improves brake
Functional reliability and service life.
4, the intelligent winding plant of the utility model, control system pass through electromagnetic relief valve, proportional pressure-reducing valve, electromagnetic switch
Valve carries out quantization adjusting to braking moment of the spot-type disc brake in working condition, may be implemented to impact velocity and distance
Accurate control, reduces workload, guarantees stopping power.
Although being explained in detail above to the utility model, the utility model is without being limited thereto, the skill of the art
Art personnel can be modified with principle according to the present utility model, therefore, all according to the various of the principles of the present invention progress
Modification all should be understood as falling into the protection scope of the utility model.
Claims (10)
1. a kind of for promoting the intelligent winding plant of descending mechanism, comprising:
Reel winds the wirerope for promoting load vehicle thereon；
With the power mechanism for driving reel to rotate of the input axis connection of reel；
It is characterized by further comprising:
It is arranged on the output shaft of the reel and is used to provide the spot-type disc brake of brake force for the reel of rotation；
The information collection element of the movement speed and location information for acquiring load vehicle of the shaft end of reel output shaft is set；
It is used to provide the hydraulic system of hydraulic oil with what multiple hydraulic oil ports of spot-type disc brake were respectively communicated with；
It is adjusted with the information for being acquired according to information collection element that hydraulic system and information collection element are separately connected hydraulic
The charge oil pressure of system is to adjust the control system of the braking moment of spot-type disc brake.
2. intelligence winding plant according to claim 1, which is characterized in that the information collection element is encoder.
3. intelligence winding plant according to claim 1, which is characterized in that the spot-type disc brake is braking open in usual
Device.
4. it is according to claim 1 intelligence winding plant, which is characterized in that the hydraulic system include total oil feed line and
Multiple points of logical oil feed lines are respectively connected with total oil feed line and multiple hydraulic oil ports, by multiple points of oil feed lines to multiple
Hydraulic oil port provides hydraulic oil respectively.
5. intelligence winding plant according to claim 4, which is characterized in that dividing on oil feed line for the hydraulic system is set
It is equipped with and is used to control the solenoid directional control valve for dividing oil feed line on-off with what corresponding hydraulic oil port was connected.
6. intelligence winding plant according to claim 5, which is characterized in that the hydraulic system is divided on oil feed line also
It is provided with the proportional pressure-reducing valve for being used to adjust the charge oil pressure for dividing oil feed line connecting with solenoid directional control valve.
7. intelligence winding plant according to claim 6, which is characterized in that based on total oil feed line of the hydraulic system
Oil sources, the electromagnetic relief valve that the pressure for adjusting total oil feed line is provided on pipeline and keeps the pressure set up constant, with
The oil pump that fuel tank is connected and the motor for driving operation of oil pump.
8. intelligence winding plant according to claim 7, which is characterized in that the hydraulic system further includes and the main oil
The source emergency oil sources for the offer stand-by power after main oil sources runs out of steam in parallel.
9. intelligence winding plant according to claim 8, which is characterized in that the emergency oil sources includes and the multiple point
Multiple points of emergency lines of the corresponding connection of oil feed line, each dividing emergency line includes for providing the accumulator of emergency pressure oil
And pressure switch.
10. -9 described in any item intelligent winding plants according to claim 1, which is characterized in that the control system includes can
Programmed logic controller PLC and human-computer interaction interface with PLC two-way communication, wherein the control signal and encoder of PLC,
The frequency converter being connect with the driving motor of power mechanism and the connection of the pressure switch of the hydraulic system, the control output of PLC
End is connect with the electromagnetic relief valve of hydraulic system, proportional pressure-reducing valve, solenoid directional control valve, motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821220384.8U CN208747522U (en) | 2018-07-31 | 2018-07-31 | For promoting the intelligent winding plant of descending mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821220384.8U CN208747522U (en) | 2018-07-31 | 2018-07-31 | For promoting the intelligent winding plant of descending mechanism |
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| CN208747522U true CN208747522U (en) | 2019-04-16 |
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| CN201821220384.8U Expired - Fee Related CN208747522U (en) | 2018-07-31 | 2018-07-31 | For promoting the intelligent winding plant of descending mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747333A (en) * | 2020-07-06 | 2020-10-09 | 徐州淮煤矿山设备制造有限公司 | An external multi-combination winch for disc brakes |
| CN115215242A (en) * | 2022-09-19 | 2022-10-21 | 杭州未名信科科技有限公司 | Winch gradient brake power system of intelligent tower crane and intelligent tower crane |
-
2018
- 2018-07-31 CN CN201821220384.8U patent/CN208747522U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111747333A (en) * | 2020-07-06 | 2020-10-09 | 徐州淮煤矿山设备制造有限公司 | An external multi-combination winch for disc brakes |
| CN115215242A (en) * | 2022-09-19 | 2022-10-21 | 杭州未名信科科技有限公司 | Winch gradient brake power system of intelligent tower crane and intelligent tower crane |
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