CN104495586A - Pneumatic telescopic elevator - Google Patents
Pneumatic telescopic elevator Download PDFInfo
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- CN104495586A CN104495586A CN201410778528.1A CN201410778528A CN104495586A CN 104495586 A CN104495586 A CN 104495586A CN 201410778528 A CN201410778528 A CN 201410778528A CN 104495586 A CN104495586 A CN 104495586A
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- variable
- weight
- valve
- cylinder
- lifting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/0423—Driving gear ; Details thereof, e.g. seals actuated pneumatically or hydraulically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a pneumatic telescopic elevator, which comprises a variable-weight car, a variable-weight counterweight, automatic balance equipment, a compressed air system and a cylinder traction device; the cylinder traction device comprises a first cylinder and a safety gear pull rod assembly; the first cylinder comprises a first piston rod; the first piston rod is connected with the safety gear pull rod assembly; the variable-weight car and the variable-weight counterweight are connected through the automatic balance equipment; the variable-weight car is provided with a first liquid-gas exchanger; the variable-weight counterweight is provided with a second liquid-gas exchanger; the first liquid-gas exchanger and the second liquid-gas exchanger are communicated; the first liquid-gas exchanger, the second liquid-gas exchanger, the automatic balance equipment and the first cylinder are respectively connected with the compressed air system. The pneumatic telescopic elevator disclosed by the invention has the characteristics that the structure is simplified, the production cost is reduced, the operation during working is stable, the energy consumption is greatly reduced, the energy is saved, and the environment is protected.
Description
Technical field
The invention belongs to a kind of elevator on villa, especially relate to a kind of pneumatic extension elevator.
Background technology
The weight of traditional elevator car itself and counterweight are all changeless, therefore, when car manned more time, the overall weight of car is larger; Manned fewer, overall weight is less.The weight of lift car entirety differs larger with the weight of counterweight, and the positive and negative drive torque of elevator is larger, and energy consumption is larger.Meanwhile, drive the car of elevator to move up and down by towing machine, structure is more complicated, adds manufacturing cost.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic extension elevator, at least one in can solving the problem.
According to an aspect of the present invention, provide a kind of pneumatic extension elevator, comprise variable-weight car, variable-weight counterweight, automatic balance device, compressed air system and cylinder drag device, cylinder drag device comprises the first cylinder and safety tongs rod assembly, first cylinder comprises first piston bar, safety tongs rod assembly is fixed on variable-weight car, first piston bar is connected with safety tongs rod assembly, variable-weight car is connected by automatic balance device with variable-weight counterweight, automatic balance device keeps the balance of variable-weight car and variable-weight counterweight, variable-weight car is provided with the first liquid gas converter, variable-weight counterweight is provided with the second liquid gas converter, first liquid gas converter is connected by liquid pipe with the second liquid gas converter, first liquid gas converter, second liquid gas converter, automatic balance device is all connected with compressed air system with the first cylinder.
The invention has the beneficial effects as follows: directly by the first piston bar in the first cylinder stretch out and retraction pulls steel rope, variable-weight car is driven to move up and down again, instead of and existingly to be driven by towing machine, simplify integral structure and the manufacturing cost of pneumatic extension elevator, pneumatic extension elevator in use, the change of heavy amount is contained according to variable-weight car, compressed air system input compressed-air to the first liquid gas converter or the second liquid gas converter, the liquid of the first liquid gas converter and the second liquid gas converter is circulated, change the weight of corresponding variable-weight car and variable-weight counterweight, when ensureing that the load-carrying of variable-weight car increases or reduces, the corresponding minimizing of weight of the first liquid gas converter or increase, make the balance that the overall weight of the overall weight of variable-weight car and variable-weight counterweight keeps new, reduce the drive torque of pneumatic extension elevator, greatly reduce energy consumption, be provided with stationarity when automatic balance device can ensure that pneumatic extension elevator runs simultaneously.
In some embodiments, cylinder drag device also comprises the first pulley, second pulley, velocity limiter and land wheel, first pulley is fixedly connected with first piston bar, first pulley is fixedly connected with the second pulley, land wheel is fixed on pit, velocity limiter is arranged on the first cylinder, first piston bar is connected by steel rope with safety tongs rod assembly, steel rope comprises the first steel rope and the second steel rope, one end of first steel rope is fixed on safety tongs rod assembly, the other end walks around velocity limiter successively, first pulley, be fixed in the fag end combination of machine room after velocity limiter, one end of second steel rope is fixed on safety tongs rod assembly, the other end is fixed on after walking around land wheel and the second pulley in the fag end combination of pit.Thus, drive the first pulley and the second pulley to move by the telescopic moving of first piston bar, thus drive corresponding first steel rope and the second steel rope to pull, complete moving up and down of variable-weight car, convenient control.
In some embodiments, first liquid gas converter can comprise the first air chamber, first liquid chamber and the first diaphragm plate, first liquid chamber and the first air chamber lay respectively at the both sides of the first diaphragm plate, and the material of the first diaphragm plate is soft material, and the first diaphragm plate is that rugosity is arranged.Thus, be provided with the first liquid gas converter, can according to the change of the content liquid in first liquid chamber, change the weight of whole first liquid gas converter, thus achieve the weight changing whole variable-weight car, therefore, when the load-carrying weight of variable-weight car reduces, the weight of the first liquid gas converter increases; Otherwise the weight of the first liquid gas converter reduces.Thus ensure that the balance of variable-weight car and variable-weight counterweight, reduce the drive torque of elevator, reduce energy consumption.
In some embodiments, second liquid gas converter comprises the second air chamber, second liquid chamber and the second diaphragm plate, second liquid chamber and the second air chamber lay respectively at the both sides of the second diaphragm plate, the material of the second diaphragm plate is soft material, second diaphragm plate is that rugosity is arranged, second air chamber is connected with the first air chamber, and second liquid chamber is connected with first liquid chamber.Thus, the same with the first liquid gas converter can along with the change of variable-weight car weight, the overall weight of the second liquid gas converter also carries out corresponding change, ensure that the balance of variable-weight car and variable-weight counterweight, reduces the drive torque of elevator, reduce energy consumption.
In some embodiments, compressed air system can comprise air compression station, speed regulation device, apparatus for controlling of lifting and change counterweight electromagnetic valve, speed regulation device, apparatus for controlling of lifting are all connected with air compression station with change counterweight electromagnetic valve, apparatus for controlling of lifting is connected with speed regulation device, first air chamber is connected with air compression station by becoming counterweight electromagnetic valve with the second air chamber, and apparatus for controlling of lifting is connected with automatic balance device.Thus, the running velocity that speed regulation device conveniently can control whole variable-weight car is provided with; Be provided with operation or stopping that apparatus for controlling of lifting can control variable-weight car; Be provided with become that counterweight electromagnetic valve can control air compression station and the first liquid gas converter and the second liquid gas converter be communicated with situation.
In some embodiments, speed regulation device can comprise speed regulation throttle valve, speed governing electromagnetic valve, speed governing cylinder and governor valve, speed regulation throttle valve, speed governing electromagnetic valve, speed governing cylinder are connected successively with governor valve, and governor valve is all connected with apparatus for controlling of lifting with air compression station.Thus, running velocity, precise control and the convenience of variable-weight car can be regulated by the circulation controlling each parts in speed regulation device.
In some embodiments, apparatus for controlling of lifting can comprise meter in valve and lifting electromagnetic valve, the two ends of meter in valve connect air compression station and lifting electromagnetic valve respectively, lifting electromagnetic valve is connected with governor valve, and apparatus for controlling of lifting is connected with automatic balance device by lifting electromagnetic valve.Thus, the suction quantity that meter in valve can control to be elevated electromagnetic valve is provided with; What be provided with that lifting electromagnetic valve can control air compression station and automatic balance device is communicated with situation, realizes operation and the braking of pneumatic extension elevator, ensures the safety of operation.
In some embodiments, automatic balance device can comprise load-bearing stop mechanism, equalizing gear and shuttle valve, equalizing gear is for supporting load-bearing stop mechanism, load-bearing stop mechanism comprises BOGEY WHEEL and drg, BOGEY WHEEL is for supporting variable-weight car and variable-weight counterweight, and drg is connected with lifting electromagnetic valve by shuttle valve.Thus, be provided with equalizing gear and can keep the steady of variable-weight car and variable-weight counterweight, make the operation up and down of variable-weight car held stationary.
In some embodiments, equalizing gear can comprise floating part, the first elastic component, the second elastic component, the first travel switch and the second travel switch, first travel switch is corresponding with the first elastic component, second travel switch is corresponding with the second elastic component, first travel switch and the second travel switch are all connected with change counterweight electromagnetic valve, first elastic component and the second elastic component lay respectively at the opposite end of floating part, and load-bearing stop mechanism is located on floating part.Thus, the first travel switch or the second travel switch can be made to connect by the swing of floating part, control to become counterweight electromagnetic valve and connect different ends, thus make the corresponding increase of the weight of variable-weight car and variable-weight counterweight or reduction, reach new balance.
In some embodiments, pneumatic extension elevator can also comprise hydraulic control one-way valve, and the first liquid gas converter is connected by hydraulic control one-way valve with the second liquid gas converter.Thus, be provided with when hydraulic control one-way valve can ensure that in the first liquid gas converter and the second liquid gas converter, hydraulic pressure increases and open hydraulic control one-way valve, make one end that flow direction hydraulic pressure is low.
Accompanying drawing explanation
The structural representation of a kind of embodiment of Fig. 1 pneumatic extension of the present invention elevator;
Fig. 2 is the structural representation at another visual angle of pneumatic extension elevator of the present invention;
Fig. 3 is the structural representation of the automatic balance device in pneumatic extension elevator of the present invention;
Fig. 4 is the structural representation of variable-weight counterweight in pneumatic extension elevator of the present invention;
Fig. 5 is the principle of work schematic diagram that in pneumatic extension elevator of the present invention, air compression system is connected with each parts;
Fig. 6 is the structural representation of the first pulley in pneumatic extension elevator of the present invention and the second pulley;
Fig. 7 is the structural representation that the pneumatic drag device in pneumatic extension elevator of the present invention is connected with variable-weight car;
Fig. 8 is the structural representation of the safety tongs rod assembly in pneumatic extension elevator of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
With reference to Fig. 1, Fig. 2 and Fig. 7: pneumatic extension elevator, comprise variable-weight car 1, variable-weight counterweight 2, automatic balance device 3, compressed air system 4 and cylinder drag device 9, cylinder drag device 9 comprises the first cylinder 91 and safety tongs rod assembly 92, first cylinder 91 comprises first piston bar 911, safety tongs rod assembly 92 is fixed on variable-weight car 1, first piston bar 911 is connected by steel rope 10 with safety tongs rod assembly 92, variable-weight car 1 is connected by automatic balance device 3 with variable-weight counterweight 2, automatic balance device 3 keeps the balance of variable-weight car 1 and variable-weight counterweight 2.Variable-weight car 1 is provided with the first liquid gas converter 5, first liquid gas converter 5 and is bolted connection in the bottom of variable-weight car 1; The support body of variable-weight counterweight 2 is provided with the second liquid gas converter 6; First liquid gas converter 5 is connected with the second liquid gas converter 6, and the first liquid gas converter 5, second liquid gas converter 6, automatic balance device 3 are all connected with compressed air system 4 with the first cylinder 91.
As shown in Figure 7 and Figure 8, wherein, safety tongs rod assembly 92 comprises pull bar 921, first Compress Spring 922, second Compress Spring 923, arm-tie 924 and safety tongs, pull bar 921 is connected with safety tongs, pull bar 921 is hinged with variable-weight car 1, arm-tie 924 and pull bar 921 are bolted to connection, and the first Compress Spring 922 abuts against with the relative both sides of pull bar 921 respectively with the second Compress Spring 923, and steel rope 10 is fixed on arm-tie 924.When pull bar 921 swings, drive safety tongs work, ensure that the moving velocity of this telescopic pneumatic elevator is in rated range by safety tongs, ensure the safety of running.
As shown in Fig. 2, Fig. 6 and Fig. 7, cylinder drag device 9 also comprises the first pulley 93, second pulley 94, velocity limiter 95 and land wheel 96, first pulley 93 is fixedly connected with first piston bar 911, first pulley 93 and the second pulley 94 are all fixed on connecting panel, first pulley 93 is fixedly connected with by connecting panel with the second pulley 94, land wheel 96 is fixed on pit, and velocity limiter 95 is mounted by means of bolts on the first cylinder 91.Steel rope 10 comprises the first steel rope 101 and the second steel rope 102, one end of first steel rope 101 is fixed on safety tongs rod assembly 92, the other end is fixed in the fag end combination 20 of machine room after walking around velocity limiter 95, first pulley 93, velocity limiter 95 successively, one end of second steel rope 102 is fixed on safety tongs rod assembly 92, and the other end is fixed on after walking around land wheel 96 and the second pulley 94 in the fag end combination 30 of pit.
As shown in Fig. 1, Fig. 7 and Fig. 8, one end of first steel rope 101 is fixed on one end of arm-tie 924, one end of second steel rope 102 is fixed on the other end of arm-tie 924, when the first steel rope 101 or the second steel rope 102 pull, under the effect of pulling force, pull pull bar 921 to swing, make pull bar 921 compress the first Compress Spring 922 or the second Compress Spring 923.
When the pressurized air in compressed air system 4 enters into the relative side with first piston bar 911 of the first cylinder 91, it is extrapolated that air pressure promotes first piston bar 911, first piston bar 911 promotes the first pulley 93, the stressed variable-weight car 1 that pulls of first steel rope 101 moves up, and is moved down by automatic balance device 3 variable-weight counterweight 2; Otherwise, when pressurized air enters into the same side of the first piston bar 911 of the first cylinder 91, air pressure promotes first piston bar 911 and retracts, and the second pulley 94 drives the second steel rope 102 stressed, and pulling variable-weight car 1 to move down, variable-weight counterweight 2 moves up.
As shown in Figure 2 and Figure 5, first liquid gas converter 5 comprises the first air chamber 51, first liquid chamber 52 and the first diaphragm plate 53, first liquid chamber 52 and the first air chamber 51 lay respectively at the both sides of the first diaphragm plate 53, the material of the first diaphragm plate 53 is soft material, and the first diaphragm plate 53 is arranged in rugosity.Wherein, first diaphragm plate 53 is diaphragm of rubber plate, when passing through pressurized air in the first air chamber 51, under gas pressure, the first diaphragm plate 53 is to first liquid chamber 52 1 side compression, thus the volume in first liquid chamber 52 reduces, liquid in first liquid chamber 52 flows out first liquid chamber 52, thus makes the weight saving of the first liquid gas converter 5, achieves the weight reducing whole variable-weight car 1.
As shown in Figure 4 and Figure 5, second liquid gas converter 6 comprises the second air chamber 61, second liquid chamber 62 and the second diaphragm plate 63, second liquid chamber 62 and the second air chamber 61 lay respectively at the both sides of the second diaphragm plate 63, the material of the second diaphragm plate 63 is soft material, second diaphragm plate 63 is arranged in rugosity, second air chamber 61 is connected with the first air chamber 51, and second liquid chamber 62 is connected by liquid pipe with first liquid chamber 52.Second diaphragm plate 63 is diaphragm of rubber plate, second liquid gas converter 6 is identical with the first liquid gas converter 5 principle of work, when gas compression first diaphragm plate 53 of the first air chamber 51, liquid stream in first liquid chamber 52 is to second liquid chamber 62, the weight of variable-weight car 1 is reduced, and the weight of variable-weight counterweight 2 increases.
The material of the first diaphragm plate 53 and the second diaphragm plate 63 is soft material, thus the pressurized air that can be passed into by compressed air system 4 is compressed both thus made the liquid in corresponding fluid chamber discharge, realize the weight being changed variable-weight car 1 and variable-weight counterweight 2 by air pressure.
Compressed air system 4 comprises air compression station 41, speed regulation device 42, apparatus for controlling of lifting 43 and becomes counterweight electromagnetic valve 44, speed regulation device 42, apparatus for controlling of lifting 43 are all connected with air compression station 41 with change counterweight electromagnetic valve 44, apparatus for controlling of lifting 43 is connected with speed regulation device 42, first air chamber 51 is connected with air compression station 41 by becoming counterweight electromagnetic valve 44 with the second air chamber 61, and apparatus for controlling of lifting 43 is connected with automatic balance device 3.When change counterweight electromagnetic valve 44 and the first air chamber 51 are connected, air compression station 41 is carried in pressurized air to the first air chamber 51, compresses the first diaphragm plate 53; When change counterweight electromagnetic valve 44 and the second air chamber 61 are connected, air compression station 41 is carried in pressurized air to the second air chamber 61, compresses the second diaphragm plate 63; Thus, the on-state by becoming counterweight electromagnetic valve 44 can control the changes in weight of the first liquid gas converter 5 and the second liquid gas converter 6.
Speed regulation device 42 comprises speed regulation throttle valve 421, speed governing electromagnetic valve 422, speed governing cylinder 423 and governor valve 424, speed regulation throttle valve 421, speed governing electromagnetic valve 422, speed governing cylinder 423 are connected successively with governor valve 424, and governor valve 424 is all connected with apparatus for controlling of lifting 43 with air compression station 41.Wherein, be provided with spring and speed-regulating piston in speed governing cylinder 423, this spring lays respectively at the relative both sides of speed-regulating piston with the induction opening that speed governing cylinder 423 is offered, when making pressurized air enter speed governing cylinder 423, this spring is compressed, and the opening of governor valve 424 is increased.
Apparatus for controlling of lifting 43 comprises meter in valve 431 and lifting electromagnetic valve 432, the two ends of meter in valve 431 connect air compression station 41 and lifting electromagnetic valve 432 respectively, lifting electromagnetic valve 432 is connected with governor valve 424, and apparatus for controlling of lifting 43 is connected with automatic balance device 3 by lifting electromagnetic valve 432.By the uninterrupted regulating the openings of sizes of meter in valve 431 to control the gas that compressed air station 41 enters, thus control the size that automatic balance device 3 controls the running velocity of variable-weight car 1.
Be provided with meter in valve 431 for controlling the command speed of pneumatic extension elevator, the large then rising or falling speed of opening amount of meter in valve 431 is fast, otherwise rising or falling speed is slow.
As shown in Fig. 1, Fig. 3 and Fig. 5, automatic balance device 3 comprises load-bearing stop mechanism 31, equalizing gear 32 and shuttle valve 33, equalizing gear 32 is for supporting load-bearing stop mechanism 31, load-bearing stop mechanism 31 comprises BOGEY WHEEL 311 and drg 312, corresponding with output shaft on the housing that drg 312 is arranged on load carrier 31, can clamp or unclamp its output shaft, BOGEY WHEEL 311 with for supporting variable-weight car 1 and variable-weight counterweight 2, drg 312 by shuttle valve 33 be elevated electromagnetic valve 432 and be connected.Variable-weight car 1 and variable-weight counterweight 2 lay respectively at the both sides of the BOGEY WHEEL 311 in load-bearing stop mechanism 31, and controlled the service direction of variable-weight car 1 by the rotating of BOGEY WHEEL 311, being provided with drg 312 can brake BOGEY WHEEL 311.
Wherein, drg 312 comprises Compress Spring 313, piston 314, cylinder body 315 and brake shoe brake cheek, and piston 314 and Compress Spring 313 are positioned at cylinder body 315, and brake shoe brake cheek and Compress Spring 313 lay respectively at the both sides of piston 314, cylinder body 315 offers induction opening, and induction opening is positioned at side, brake shoe brake cheek place.BOGEY WHEEL 311 is when braking, and brake shoe brake cheek clamps the output shaft of BOGEY WHEEL 311 under the effect of the bounce of Compress Spring 313, finally achieves the braking of variable-weight car 1; When needing brake off, the pressurized air in air compression station 41 enters cylinder body, and gas pressure is on piston 314, and promote piston 314 and move, Compress Spring 313 compresses, and brake shoe brake cheek leaves the output shaft of BOGEY WHEEL 311, brake off.
Equalizing gear 32 comprises floating part 321, first elastic component 322, second elastic component 323, first travel switch 324 and the second travel switch 325, first travel switch 324 is corresponding with the first elastic component 322, namely when the first elastic component 322 is compressed into the first travel switch 324 place, first travel switch 324 closes, when the first elastic component 322 leaves the first travel switch 324, the first travel switch 324 disconnects.Second travel switch 325 is corresponding with the second elastic component 323, namely when the second elastic component 323 is compressed into the second travel switch 325 place, second travel switch 325 closes, and when the second elastic component 323 leaves the second travel switch 325, the second travel switch 325 disconnects.
First travel switch 324 and the second travel switch 325 are all connected with change counterweight electromagnetic valve 44, first elastic component 322 and the second elastic component 323 are arranged on the opposite end of floating part 321 respectively, and the bottom of the traction sheave in load-bearing stop mechanism 31 is bolted on floating part 321.The conveniently installation of load-bearing stop mechanism 31, is welded with stay bearing plate on the top of floating part 321, and the first elastic component 322 and the second elastic component 323 are positioned at the below at stay bearing plate two ends, and variable-weight car 1 and variable-weight counterweight 2 lay respectively at the both sides of stay bearing plate.Wherein floating part 321 is roller, when the weight overbalance of the variable-weight car 1 of load-bearing stop mechanism 31 both sides and variable-weight counterweight 2, under the application force of load-bearing stop mechanism 31, floating part 321 drives stay bearing plate to weight comparatively lopsidedness, compresses corresponding first elastic component 322 or the second elastic component 323.
Pneumatic extension elevator also comprises hydraulic control one-way valve 7, and the first liquid gas converter 5 is connected by hydraulic control one-way valve 7 with the second liquid gas converter 6.
In order to the stability keeping pneumatic extension elevator to run hourly velocity adjustment further, pneumatic extension elevator also comprises reducing valve 8, speed regulation throttle valve 421 is connected with air compression station 41 by reducing valve 8, be provided with reducing valve 8 when making load variations, speed control pressure remains unchanged substantially, ensure that the stability of speed governing.
Pneumatic extension elevator of the present invention is after stopping, and variable-weight car 1 and variable-weight counterweight 2 are in state of equilibrium.After having people to enter variable-weight car 1, the overall weight of variable-weight car 1 increases, and under the application force of variable-weight car 1, floating part 321 is to lopsidedness; Now, first elastic component 322 is compressed and is contacted with the first travel switch 324, first travel switch 324 is closed, thus the one end making change counterweight electromagnetic valve 44 be connected with the first air chamber 51 is energized, the pressurized air in air compression station 41 enters in the first air chamber 51 through becoming counterweight electromagnetic valve 44.After pressurized air enters the first air chamber 51, under gas pressure, the first diaphragm plate 53 is compressed, liquid in first liquid chamber 52 is forced out, the liquid extruded enters in second liquid chamber 62 through oil pipe, the weight of the first liquid gas converter 5 is reduced, and the weight of the second liquid gas converter 6 increases.Meanwhile, when the liquid in second liquid chamber 62 increases, the second diaphragm plate 63 is to the second air chamber 61 1 side compression under hydraulic action, and the gas in the second air chamber 61 is forced out.Along with the increase of the load-carrying of variable-weight car 1, liquid in first liquid chamber 52 flow in second liquid chamber 62 gradually, the overall weight of the overall weight of variable-weight car 1 and variable-weight counterweight 2 is tended to balance gradually, until variable-weight car 1 and variable-weight counterweight 2 reach new balance.Close the railway carriage or compartment door of variable-weight car 1, after variable-weight car 1 and variable-weight counterweight 2 reach balance, first elastic component 322 leaves the first travel switch 324, first travel switch 324 disconnects, thus the compression control in air compression station 41 stops entering in the first air chamber 51, start the first cylinder 91, variable-weight car 1 runs.Thus, after variable-weight car 1 and variable-weight counterweight 2 reach new balance, decrease the weight difference of BOGEY WHEEL 311 both sides, decrease propulsive effort and the energy consumption of the first cylinder 91.
In like manner, when the load-carrying of variable-weight car 1 reduces, floating part 321 tilts to opposite side, second elastic component 323 contacts the second travel switch 325, second travel switch 325 closes, and one end that change counterweight electromagnetic valve 44 is connected with the second air chamber 61 is energized, and pressurized air enters the second air chamber 61.Under compressed-air actuated effect, the second diaphragm plate 63 is compressed, and the liquid in second liquid chamber 62 is pressed out to first liquid chamber 52, thus the weight of the second liquid gas converter 6 is reduced, and the weight of the first liquid gas converter 5 increases.Meanwhile, along with the increase of liquid in first liquid chamber 52, the first diaphragm plate 53 is to the first air chamber 51 1 side compression under hydraulic action, and the gas in the first air chamber 51 is forced out.Finally make the balance that the overall weight of the overall weight of variable-weight car 1 and variable-weight counterweight 2 reaches new, the second elastic component 323 leaves the second travel switch 325, second travel switch 325 and disconnects, and pressurized air stops entering the second air chamber 61.Close railway carriage or compartment and start the first cylinder 91 behind the door, variable-weight car 1 runs.
After starting the first cylinder 91, a end energising of lifting electromagnetic valve 432, pressurized air enters in the cavity of the first cylinder 91 through meter in valve 431 and lifting electromagnetic valve 432, promotes first piston bar 911 protruding, drives variable-weight car 1 to rise.Meanwhile, pressurized air enters in drg 312 through shuttle valve 33, and the brake shoe brake cheek in drg 312 is opened BOGEY WHEEL 311.Otherwise after the b end energising of lifting electromagnetic valve 432, first piston bar 911 is retracted and is driven variable-weight car 1 to decline.
Thus, pneumatic extension elevator of the present invention, by the mutual flowing of both the first liquid gas converter 5 and the second liquid gas converter 6 liquid, realize when the load-carrying of variable-weight car 1 changes, variable-weight car 1 and variable-weight counterweight 2 keep balance, ensure that variable-weight car 1 operationally consumes energy low, substantially reduce output torque, improve the durability of the first cylinder 91, improve service life.
In order to ensure the safety that variable-weight car 1 can operate steadily and use, need to carry out speed governing to it in variable-weight car 1 operational process.When variable-weight car 1 stops, the opening of governor valve 424 is minimum, variable-weight car 1 is in lifting process, and speed governing electromagnetic valve 422 is energized, and the pressurized air of air compression station 41 enters into speed governing cylinder 423 through reducing valve 8, speed regulation throttle valve 421 and speed governing electromagnetic valve 422.Now, spring in speed governing cylinder 423 is compressed, the opening of governor valve 424 increases, namely compressed-air actuated suction quantity increases, thus the pressurized air increase of lifting electromagnetic valve 432 is entered through governor valve 424, the suction quantity of the first cylinder 91 increases, and its faster rotational speed, makes the running velocity of variable-weight car 1 accelerate.Before variable-weight car 1 operation is arrived at a station, speed governing electromagnetic valve 422 power-off, pressurized air stops entering in speed governing cylinder 423, and the pressure gas in speed governing cylinder 423, under the effect of the bounce of spring, is discharged through speed governing electromagnetic valve 422 and speed regulation throttle valve 421; The opening of governor valve 424 reduces simultaneously, and the air entering lifting electromagnetic valve 432 through governor valve 424 reduces, thus the running velocity of variable-weight car 1 slows down, and stops when arriving at a station.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. pneumatic extension elevator, wherein, comprise variable-weight car (1), variable-weight counterweight (2), automatic balance device (3), compressed air system (4) and cylinder drag device (9), described cylinder drag device (9) comprises the first cylinder (91) and safety tongs rod assembly (92), described first cylinder (91) comprises first piston bar (911), described safety tongs rod assembly (92) is fixed on variable-weight car (1), described first piston bar (911) is connected with safety tongs rod assembly (92), described variable-weight car (1) is connected by automatic balance device (3) with variable-weight counterweight (2), described automatic balance device (3) keeps the balance of variable-weight car (1) and variable-weight counterweight (2), described variable-weight car (1) is provided with the first liquid gas converter (5), described variable-weight counterweight (2) is provided with the second liquid gas converter (6), described first liquid gas converter (5) is connected with the second liquid gas converter (6), described first liquid gas converter (5), second liquid gas converter (6), automatic balance device (3) is all connected with compressed air system (4) with the first cylinder (91).
2. pneumatic extension elevator according to claim 1, wherein, described cylinder drag device (9) also comprises the first pulley (93), second pulley (94), velocity limiter (95) and land wheel (96), described first pulley (93) is fixedly connected with first piston bar (911), described first pulley (93) is fixedly connected with the second pulley (94), described land wheel (96) is fixed on pit, described velocity limiter (95) is arranged on the first cylinder (91), described first piston bar (911) is connected by steel rope (10) with safety tongs rod assembly (92), described steel rope (10) comprises the first steel rope (101) and the second steel rope (102), one end of described first steel rope (101) is fixed on safety tongs rod assembly (92), the other end walks around velocity limiter (95) successively, first pulley (93), be fixed on fag end combination (20) of machine room after velocity limiter (95), one end of described second steel rope (102) is fixed on safety tongs rod assembly (92), the other end is fixed on after walking around land wheel (96) and the second pulley (94) on fag end combination (30) of pit.
3. pneumatic extension elevator according to claim 2, wherein, described first liquid gas converter (5) comprises the first air chamber (51), first liquid chamber (52) and the first diaphragm plate (53), described first liquid chamber (52) and the first air chamber (51) lay respectively at the both sides of the first diaphragm plate (53), the material of described first diaphragm plate (53) is soft material, and described first diaphragm plate (53) is arranged in rugosity.
4. pneumatic extension elevator according to claim 3, wherein, described second liquid gas converter (6) comprises the second air chamber (61), second liquid chamber (62) and the second diaphragm plate (63), described second liquid chamber (62) and the second air chamber (61) lay respectively at the both sides of the second diaphragm plate (63), the material of described second diaphragm plate (63) is soft material, described second diaphragm plate (63) is arranged in rugosity, described second air chamber (61) is connected with the first air chamber (51), described second liquid chamber (62) is connected with first liquid chamber (52).
5. the pneumatic extension elevator according to claim 3 or 4, wherein, described compressed air system (4) comprises air compression station (41), speed regulation device (42), apparatus for controlling of lifting (43) and change counterweight electromagnetic valve (44), described speed regulation device (42), apparatus for controlling of lifting (43) is all connected with air compression station (41) with change counterweight electromagnetic valve (44), described apparatus for controlling of lifting (43) is connected with speed regulation device (42), described first air chamber (51) is connected with air compression station (41) by becoming counterweight electromagnetic valve (44) with the second air chamber (61), described apparatus for controlling of lifting (43) is connected with automatic balance device (3).
6. pneumatic extension elevator according to claim 5, wherein, described speed regulation device (42) comprises speed regulation throttle valve (421), speed governing electromagnetic valve (422), speed governing cylinder (423) and governor valve (424), described speed regulation throttle valve (421), speed governing electromagnetic valve (422), speed governing cylinder (423) are connected successively with governor valve (424), and described governor valve (424) is all connected with apparatus for controlling of lifting (43) with air compression station (41).
7. pneumatic extension elevator according to claim 6, wherein, described apparatus for controlling of lifting (43) comprises meter in valve (431) and lifting electromagnetic valve (432), the two ends of described meter in valve (431) connect air compression station (41) and lifting electromagnetic valve (432) respectively, described lifting electromagnetic valve (432) is connected with governor valve (424), and described apparatus for controlling of lifting (43) is connected with automatic balance device (3) by lifting electromagnetic valve (432).
8. pneumatic extension elevator according to claim 7, wherein, described automatic balance device (3) comprises load-bearing stop mechanism (31), equalizing gear (32) and shuttle valve (33), described equalizing gear (32) is for supporting load-bearing stop mechanism (31), described load-bearing stop mechanism (31) comprises BOGEY WHEEL (311) and drg (312), described BOGEY WHEEL (311) is for supporting variable-weight car (1) and variable-weight counterweight (2), described drg (312) is connected with lifting electromagnetic valve (432) by shuttle valve (33).
9. pneumatic extension elevator according to claim 7, wherein, described equalizing gear (32) comprises floating part (321), first elastic component (322), second elastic component (323), first travel switch (324) and the second travel switch (325), described first travel switch (324) is corresponding with the first elastic component (322), described second travel switch (325) is corresponding with the second elastic component (323), described first travel switch (324) and the second travel switch (325) are all connected with change counterweight electromagnetic valve (44), described first elastic component (322) and the second elastic component (323) lay respectively at the opposite end of floating part (321), described load-bearing stop mechanism (31) is located on floating part (321).
10. the pneumatic extension elevator according to any one of claims 1 to 3, wherein, also comprise hydraulic control one-way valve (7), described first liquid gas converter (5) is connected by hydraulic control one-way valve (7) with the second liquid gas converter (6).
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| CN201410778528.1A CN104495586B (en) | 2014-12-12 | 2014-12-12 | Pneumatic telescopic elevator |
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| CN201410778528.1A CN104495586B (en) | 2014-12-12 | 2014-12-12 | Pneumatic telescopic elevator |
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| CN104495586B CN104495586B (en) | 2017-02-01 |
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| CN107032244A (en) * | 2017-05-27 | 2017-08-11 | 中山市金马科技娱乐设备股份有限公司 | A kind of drive mechanism of new driving skid lifting |
| CN111186758A (en) * | 2020-03-04 | 2020-05-22 | 秦皇岛平成科技有限公司 | Self-balancing lifting device and control method thereof |
| CN115030582A (en) * | 2022-05-30 | 2022-09-09 | 青岛黄海学院 | Three-dimensional underground parking device and using method |
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|---|---|
| CN104495586B (en) | 2017-02-01 |
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