CN103787178B - Dual Drive elevating mechanism - Google Patents
Dual Drive elevating mechanism Download PDFInfo
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- CN103787178B CN103787178B CN201410044057.1A CN201410044057A CN103787178B CN 103787178 B CN103787178 B CN 103787178B CN 201410044057 A CN201410044057 A CN 201410044057A CN 103787178 B CN103787178 B CN 103787178B
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Abstract
The invention discloses a kind of Dual Drive elevating mechanism, it includes machine power simultaneously and drives elevating mechanism and hydraulic power to drive elevating mechanism two to overlap power drive elevating mechanism, and its two sets power drive elevating mechanism can work alone respectively, it is also possible to work simultaneously.A kind of Dual Drive elevating mechanism provided by the invention, a set of driving elevating mechanism of any of which breaks down, and other set drives elevating mechanism can enter main driving condition at once, it is achieved the continuous operation of elevating mechanism.Meanwhile, in Dual Drive elevating mechanism, any a set of driving elevating mechanism is main driving when being operated, and other set drives elevating mechanism automatically as safety guard, elevating mechanism will to be protected, and improves reliability and the safety of elevating mechanism work.
Description
Technical field
The present invention relates to a kind of Dual Drive elevating mechanism, be specifically related to a kind of mechanical-hydraulic Dual Drive elevating mechanism, belong to electric and field of electromechanical technology.
Background technology
At present, elevating mechanism is widely used in the fields such as lifting, loading, transport, and common elevating mechanism has driving, elevator etc..Mainly it is made up of lifting motor, reductor, cable wire, reel etc..Its basic functional principle is: by controlling the direction of rotation of lifting motor, drives the positive and negative rotation of reel, it is achieved the reel folding and unfolding to cable wire, completes the lifting promoting thing.But for certain some important occasion, such as the lifting of visual plant, it is necessary to more consideration safety and reliabilities, so, once elevating mechanism breaks down, must there is more safety precautions on the one hand, it is prevented that promote quickly falling of thing, damage and promote thing；Allow for fixing a breakdown rapidly on the other hand, or the second set elevating mechanism can be started, it is ensured that elevating mechanism can normal and continuous operation.
For certain some more special occasion, for ensureing that elevating mechanism can normal and continuous operation, and improving reliability and the safety of elevating mechanism work, it is within the contemplation of the invention that provide the technical scheme of a set of double dynamical driving elevating mechanism, the reliably working for elevating mechanism provides safeguard.
Summary of the invention
In order to improve reliability and the safety of elevating mechanism work, the present invention provides a kind of Dual Drive elevating mechanism, and it includes machine power simultaneously and drives elevating mechanism and hydraulic power to drive elevating mechanism two to overlap power drive elevating mechanism.
In order to reach object above, technical scheme is as follows:
A kind of Dual Drive elevating mechanism, including: fixed frame and elevator platform, and include machine power jacking system and hydraulic power jacking system；
Described machine power jacking system includes lifting motor, reductor, gear, tooth bar；Described lifting motor is with brake unit；Described lifting motor is arranged on motor mount, and described motor mount is fixed on elevator platform；The left end of described lifting motor is provided with reductor, and the output shaft of described reductor is connected with gear, and the rotary motion of described lifting motor can pass to gear by reductor after being slowed down, and drives gear to rotate；Described tooth bar is arranged on the fixed frame left column of fixed frame, and engages each other with gear；Slow down by the rotary motion of the lifting motor that is arranged on elevator platform and by reductor, drive gear to rotate, it is achieved gear up and down motion in tooth bar vertical direction, it is achieved the lifting action of elevator platform；
Described hydraulic power jacking system includes under hydraulic system, oil cylinder, cylinder upper end lid, oil cylinder lower union joint, oil cylinder mounting seat, upper pin on mounting seat, lower bearing pin, oil cylinder；On described oil cylinder, mounting seat is arranged on the fixed frame crossbeam of fixed frame, and described cylinder upper end lid is formed hinged by upper pin with mounting seat on oil cylinder；Under described oil cylinder, mounting seat is arranged on elevator platform, and described oil cylinder lower union joint top is connected with cylinder piston rod by screw thread, and described oil cylinder lower union joint bottom is formed hinged by lower bearing pin with mounting seat under oil cylinder；Described hydraulic system includes fuel tank, oil filter, oil pump, balancing overflow valve, overflow valve, solenoid directional control valve, hydraulic control one-way valve and some pipelines；Described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, pipeline nine；It is connected by pipeline two between described fuel tank and oil filter, is connected by pipeline three between described oil filter and oil pump, be connected by pipeline four between described oil pump and solenoid directional control valve, be connected by pipeline five between described solenoid directional control valve and hydraulic control one-way valve；nullDescribed oil cylinder includes cylinder tube、Cylinder upper end lid、Piston、Piston rod、Bottom end cover，Piston and piston rod are connected with each other，There is in described oil cylinder cylinder upper cavity oil and oil cylinder cavity of resorption，Described cylinder upper end lid offers oil through one、Hydraulic fluid port on oil through two and oil cylinder，Described cylinder upper cavity oil is by the oil through one on cylinder upper end lid、Oil through two、On oil cylinder, hydraulic fluid port is connected with the pipeline six of hydraulic system，Described bottom end cover offers oil through three、Hydraulic fluid port under oil through four and oil cylinder，The upper end of described oil through three is provided with plug，Described plug offers plug mesopore，The inside of oil through three is provided with check valve and holds chamber，Described check valve holds intracavity and is provided with check valve，Described check valve can hold intracavity at it and move up and down，Described check valve holds the inwall in chamber and forms spool annular chamber with it，The inside of described check valve offers spool mesopore，The sidewall of described check valve offers some spool side openings，The lower end of described check valve has the spool conical surface，Spring is installed between plug and check valve，The spool conical surface of described spring handle check valve lower end is pressed on valve seat，The lower end of described check valve is further opened with damping hole，Under described oil cylinder, the fluid of intracavity can pass through plug mesopore when discharging、Spool mesopore、Damping hole、Oil through three、Oil through four、Under oil cylinder, hydraulic fluid port is connected with the pipeline nine of hydraulic system,Between described balancing overflow valve and pipeline nine, pipeline one is set，Pipeline seven is set between described hydraulic control one-way valve and pipeline six，Pipeline eight is set between described hydraulic control one-way valve and pipeline nine；The pressure oil of described hydraulic system can pass through hydraulic fluid port, oil through four, oil through three under pipeline nine, oil cylinder, arrive check valve lower end, overcome the active force of spring, the spool conical surface is pushed away valve seat, and pressure oil enters intracavity under oil cylinder again through spool annular chamber, spool side opening, spool mesopore, plug mesopore；Described hydraulic system provides high-voltage oil liquid to oil cylinder, respectively enter cylinder upper cavity oil and the oil cylinder cavity of resorption of oil cylinder, piston driving piston rod can be driven, and moved up and down by mounting seat under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder and elevator platform, it is achieved the lifting action of elevator platform.
Lifting motor can be realized braking by dead electricity by the brake unit of above-mentioned lifting motor, and electric to lifting motor realization releasing braking by obtaining, the brake unit of lifting motor has two kinds of mode of operations: independent working mode and co-ordination pattern；
Independent working mode: in lifting motor no power state, the brake unit of lifting motor can realize working independently, and namely passes through dead electricity and lifting motor is realized braking, electric to lifting motor realization releasing braking by obtaining；
Co-ordination pattern: the brake unit of lifting motor and lifting motor is energized simultaneously, brake unit releases braking, and lifting motor rotates；The brake unit of lifting motor and lifting motor is dead electricity simultaneously, lifting motor stall, and lifting motor is realized braking by brake unit.
Can guider between above-mentioned fixed frame and elevator platform.
Above-mentioned lifting motor is common electric machine or servomotor.
Balancing overflow valve and hydraulic control one-way valve in above-mentioned hydraulic system play balanced action, it is possible to the gravity of balance lifting frame.
The Median Function of the solenoid directional control valve in above-mentioned hydraulic system is " H " type.
Provide the benefit that: a kind of Dual Drive elevating mechanism provided by the invention, it includes machine power simultaneously and drives elevating mechanism and hydraulic power to drive elevating mechanism two to overlap power drive elevating mechanism, its two sets power drive elevating mechanism can work alone respectively, it is also possible to work simultaneously.
A kind of Dual Drive elevating mechanism provided by the invention, a set of driving elevating mechanism of any of which breaks down, and other set drives elevating mechanism can enter main driving condition at once, it is achieved the continuous operation of elevating mechanism.Meanwhile, in Dual Drive elevating mechanism, any a set of driving elevating mechanism is main driving when being operated, and other set drives elevating mechanism automatically as safety guard, elevating mechanism will to be protected, and improves reliability and the safety of elevating mechanism work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As it is shown in figure 1, a kind of Dual Drive elevating mechanism, including: fixed frame 1 and elevator platform 2, and include machine power jacking system and hydraulic power jacking system；
Machine power jacking system includes lifting motor 3, reductor 5, gear 6, tooth bar 7；Lifting motor 3 is with brake unit (accompanying drawing unreacted is out), the brake unit of lifting motor 3 can be passed through dead electricity and lifting motor 3 is realized braking, electric to lifting motor 3 realization releasing braking by obtaining, the brake unit of lifting motor 3 has two kinds of mode of operations: independent working mode and co-ordination pattern.Independent working mode: in lifting motor 3 no power state, the brake unit of lifting motor 3 can realize working independently, and namely passes through dead electricity and lifting motor 3 is realized braking, electric to lifting motor 3 realization releasing braking by obtaining.Co-ordination pattern: the brake unit of lifting motor 3 and lifting motor 3 is energized simultaneously, brake unit releases braking, and lifting motor 3 rotates；The brake unit of lifting motor 3 and lifting motor 3 is dead electricity simultaneously, lifting motor 3 stall, and lifting motor 3 is realized braking by brake unit.Lifting motor 3 is arranged on motor mount 4, and motor mount 4 is fixed on elevator platform 2.
The left end of lifting motor 3 is provided with reductor 5, and the output shaft of reductor 5 is connected with gear 6, and the rotary motion of lifting motor 3 can be passed through to pass to gear 6 after reductor 5 slows down, and drives gear 6 to rotate.Tooth bar 7 is arranged on the fixed frame left column 8 of fixed frame 1, and engages each other with gear 6.Slow down by the rotary motion of the lifting motor 3 that is arranged on elevator platform 2 and by reductor 5, drive gear 6 to rotate, it is achieved the gear 6 up and down motion in tooth bar 7 vertical direction, it is achieved the lifting action of elevator platform 2.
Hydraulic power jacking system includes under hydraulic system, oil cylinder, cylinder upper end lid 12, oil cylinder lower union joint 16, oil cylinder mounting seat 10, upper pin 11 on mounting seat 17, lower bearing pin 18, oil cylinder.On oil cylinder, mounting seat 10 is arranged on the fixed frame crossbeam 9 of fixed frame 1, and cylinder upper end lid 12 is formed hinged by upper pin 11 with mounting seat 10 on oil cylinder.Under oil cylinder, mounting seat 17 is arranged on elevator platform 2, and oil cylinder lower union joint 16 top is connected with cylinder piston rod 14 by screw thread, and oil cylinder lower union joint 16 bottom is formed hinged by lower bearing pin 18 with mounting seat 17 under oil cylinder.Hydraulic system includes fuel tank 29, oil filter 33, oil pump 34, balancing overflow valve 30 and overflow valve 32, solenoid directional control valve 35, hydraulic control one-way valve 36 and some pipelines.Pipeline is pipeline 1, pipeline 2 37, pipeline 3 38, pipeline 4 39, pipeline 5 40, pipeline 6 41, pipeline 7 42, pipeline 8 43, pipeline 9 44.It is connected by pipeline 2 37 between fuel tank 29 with oil filter 33, it is connected by pipeline 3 38 between oil filter 33 with oil pump 34, it is connected by pipeline 4 39 between oil pump 34 with solenoid directional control valve 35, is connected by pipeline 5 40 between solenoid directional control valve 35 with hydraulic control one-way valve 36.nullOil cylinder includes cylinder tube、Cylinder upper end lid 12、Piston 13、Piston rod 14、Bottom end cover 15，Piston 13 and piston rod 14 are connected with each other，There is in oil cylinder cylinder upper cavity oil 27 and oil cylinder cavity of resorption 28，Cylinder upper end lid 12 offers oil through 1、Hydraulic fluid port 26 on oil through 2 25 and oil cylinder，Cylinder upper cavity oil 27 is by the oil through 1 on cylinder upper end lid 12、Oil through 2 25、On oil cylinder, hydraulic fluid port 26 is connected with the pipeline 6 41 of hydraulic system，Bottom end cover 15 offers oil through 3 21、Hydraulic fluid port 23 under oil through 4 22 and oil cylinder，The upper end of oil through 3 21 is provided with plug 19，Plug 19 offers plug mesopore 19-1，The inside of oil through 3 21 is provided with check valve and holds chamber，Check valve holds intracavity and is provided with check valve 20，Check valve 20 can hold intracavity at it and move up and down，Check valve 20 holds the inwall in chamber and forms spool annular chamber 20-2 with it，The inside of check valve 20 offers spool mesopore 20-1，The sidewall of check valve 20 offers some spool side opening 20-3，The lower end of check valve 20 has spool conical surface 20-4，Spring 19-2 is installed between plug 19 and check valve 20，Spring 19-2 is pressed in the spool conical surface 20-4 of check valve 20 lower end on valve seat 20-5，The lower end of check valve 20 is further opened with damping hole 20-6，Fluid in oil cylinder cavity of resorption 28 can pass through plug mesopore 19-1 when discharging、Spool mesopore 20-1、Damping hole 20-6、Oil through 3 21、Oil through 4 22、Under oil cylinder, hydraulic fluid port 23 is connected with the pipeline 9 44 of hydraulic system,Pipeline 1 is set between balancing overflow valve 30 and pipeline 9 44，Pipeline 7 42 is set between hydraulic control one-way valve 36 and pipeline 6 41，Pipeline eight is set between hydraulic control one-way valve and pipeline nine；The pressure oil of hydraulic system can pass through hydraulic fluid port 23, oil through 4 22, oil through 3 21 under pipeline 9 44, oil cylinder, arrive check valve 20 lower end, overcome the active force of spring 19-2, spool conical surface 20-4 is pushed away valve seat 20-5, and pressure oil enters in oil cylinder cavity of resorption 28 again through spool annular chamber 20-2, spool side opening 20-3, spool mesopore 20-1, plug mesopore 19-1.Hydraulic system provides high-voltage oil liquid to oil cylinder, respectively enter cylinder upper cavity oil 27 and the oil cylinder cavity of resorption 28 of oil cylinder, piston 13 can be driven to drive piston rod 14, and moved up and down by mounting seat 17 under piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, oil cylinder and elevator platform 2, it is achieved the lifting action of elevator platform 2.
Guider can be set between fixed frame 1 and elevator platform 2；Lifting motor 3 can be common electric machine, it is also possible to be servomotor；Balancing overflow valve 30 and hydraulic control one-way valve 36 in hydraulic system play balanced action, it is possible to the gravity of balance lifting frame.The Median Function of the solenoid directional control valve 35 in hydraulic system is " H " type.
A kind of Dual Drive elevating mechanism provided by the invention, the machine power that it comprises drives elevating mechanism and hydraulic power to drive elevating mechanism can work alone respectively, it is also possible to work simultaneously.
Machine power drives the principle that works alone of elevating mechanism:
(1), by drive installation lifting motor 3 on elevator platform 2 produce rotary motion, and slow down by reductor 5, drive gear 6 to rotate, it is achieved the gear 6 up and down motion in tooth bar 7 vertical direction, it is achieved the lifting action of elevator platform 2.By changing the rotary motion direction of lifting motor 3, it is possible to realize lifting and the down maneuver of elevator platform 2 respectively.When lifting motor 3 works, the brake unit of lifting motor 3 is in "on" position, releases and lifting motor 3 is braked.
(2), lifting motor 3 is when quitting work, and the brake unit of lifting motor 3 is in off-position, it is achieved the braking to lifting motor 3.
Hydraulic power drives the principle that works alone of elevating mechanism:
null(1)、Hydraulic power drives the lifting state of elevating mechanism: solenoid directional control valve 35 is in right position duty，The oil-in of oil pump 34 passes through oil filter 33 oil suction from fuel tank 29，The hydraulic oil of oil pump 34 oil-out passes through pipeline 4 39、The right position of solenoid directional control valve 35、Pipeline 5 40、Hydraulic control one-way valve 36、Pipeline 8 43、Pipeline 9 44、Hydraulic fluid port 23 under oil cylinder、Oil through 4 22、Oil through 3 21，Arrive check valve 20 lower end，Overcome the active force of spring 19-2，Spool conical surface 20-4 is pushed away valve seat 20-5，Pressure oil is again through spool annular chamber 20-2、Spool side opening 20-3、Spool mesopore 20-1、Plug mesopore 19-1 enters oil cylinder cavity of resorption 28，Oil pressure acts on piston 13，Form lifting force，By piston rod 14、Oil cylinder lower union joint 16、Lower bearing pin 18、Mounting seat 17 under oil cylinder，Overcome the gravity of elevator platform 2，Realize the enhancing action to elevator platform 2，The hydraulic oil of cylinder upper cavity oil 27 passes through oil through 1、Oil through 2 25、Hydraulic fluid port 26 on oil cylinder、Pipeline 6 41、The right position of solenoid directional control valve 35 returns to fuel tank 29.
null(2)、Hydraulic power drives the decline state of elevating mechanism: solenoid directional control valve 35 is in left position duty，The oil-in of oil pump 34 passes through oil filter 33 oil suction from fuel tank 29，The hydraulic oil of oil pump 34 oil-out passes through pipeline 4 39、The left position of solenoid directional control valve 35、Pipeline 6 41、Hydraulic fluid port 26 on oil cylinder、Oil through 2 25、Oil through 1 enters cylinder upper cavity oil 27，Oil pressure acts on piston 13，Produce downward thrust，And by piston rod 14、Oil cylinder lower union joint 16、Lower bearing pin 18、Mounting seat 17 under oil cylinder，Together with the gravity of elevator platform 2，Overcome the counteracting force that oil cylinder cavity of resorption 28 oil pressure produces，Realize the down maneuver to elevator platform 2，The hydraulic oil of oil cylinder cavity of resorption 28 passes through plug mesopore 19-1、Spool mesopore 20-1、Damping hole 20-6、Oil through 3 21、Oil through 4 22、Hydraulic fluid port 23 under oil cylinder、Pipeline 9 44、Pipeline 8 43、Hydraulic control one-way valve 36、Pipeline 5 40、The left position of solenoid directional control valve 35 returns to fuel tank 29.
(3), hydraulic power drives the halted state of elevating mechanism: solenoid directional control valve 35 is in middle position duty, if oil pump 34 does not quit work, the oil-in of oil pump 34 passes through oil filter 33 oil suction from fuel tank 29, the fluid of oil pump 34 oil-out passes through pipeline 4 39, in solenoid directional control valve 35, position returns to fuel tank 29, the gravity of elevator platform is by mounting seat 17 under oil cylinder, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14 acts on piston 13, the fluid of oil cylinder cavity of resorption 28 is at balancing overflow valve 30, under the combined effect of hydraulic control one-way valve 36, it is sealed, cannot flow, oil cylinder cavity of resorption 28 forms corresponding oil pressure, the gravity of balance lifting frame 2, elevator platform 2 is made to be in halted state.
During with machine power driving elevating mechanism for main driving, hydraulic power drives the operation principle of elevating mechanism:
Oil pump 34 is in the state of quitting work, and solenoid directional control valve 35 is in middle position duty.
(1), the lifting state of elevating mechanism 2: the brake unit of lifting motor 3 is in "on" position, release and lifting motor 3 is braked, lifting motor 3 rotates forward, gear 6 is driven to rotate forward by reductor 5, gear 6 and tooth bar 7 engage each other, overcome the gravity of elevator platform 2, it is achieved the enhancing action of elevator platform 2.nullWhile elevator platform 2 promotes，By mounting seat 17 under oil cylinder、Lower bearing pin 18、Oil cylinder lower union joint 16、Piston rod 14 drives piston 13 to move upward，Now，Oil cylinder cavity of resorption 28 is by plug mesopore 19-1、Spool mesopore 20-1、Spool side opening 20-3、Spool annular chamber 20-2，Check valve 20 upper end forms negative pressure，Overcome the active force of spring 19-2，Spool conical surface 20-4 is pushed away valve seat 20-5，Then through oil through 3 21、Oil through 4 22、Hydraulic fluid port 23 under oil cylinder、Pipeline 9 44、Pipeline 8 43、Hydraulic control one-way valve 36、Pipeline 5 40、In solenoid directional control valve 35, fluid is drawn from fuel tank 29 in position，The hydraulic oil of cylinder upper cavity oil 27 passes through oil through 1、Oil through 2 25、Hydraulic fluid port 26 on oil cylinder、Pipeline 6 41、In solenoid directional control valve 35, position returns to fuel tank 29，Oil cylinder is in servo-actuated state.
(2), the decline state of elevating mechanism 2: the brake unit of lifting motor 3 is in "on" position, releasing and lifting motor 3 is braked, lifting motor 3 rotates backward, and drives gear 6 to rotate backward by reductor 5, gear 6 and tooth bar 7 engage each other, it is achieved the down maneuver of elevator platform 2.While elevator platform 2 declines, driving piston 13 to move downward by mounting seat under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, the hydraulic oil of oil cylinder cavity of resorption 28 returns to fuel tank 29 by hydraulic fluid port 23, pipeline 9 44, pipeline 1, balancing overflow valve 30 under plug mesopore 19-1, spool mesopore 20-1, damping hole 20-6, oil through 3 21, oil through 4 22, oil cylinder；Cylinder upper cavity oil 27 draws fluid by position in hydraulic fluid port 26, pipeline 6 41, solenoid directional control valve 35 on oil through 1, oil through 2 25, oil cylinder from fuel tank 29, and oil cylinder is in servo-actuated state.
(3), the halted state of elevating mechanism 2: lifting motor 3 is in power down mode, and the brake unit of lifting motor 3 is in power down mode, and lifting motor 3 is braked, gear 6 stall, elevator platform 2 stop motion.Once, the brake unit of lifting motor 3 breaks down, it is impossible to realize lifting motor 3 is braked, and hydraulic power drives elevating mechanism to play a protective role.Owing to the brake unit of lifting motor 3 breaks down, cannot realize lifting motor 3 is braked, the gravity of elevator platform 2 acts on piston 13 by mounting seat 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14 under oil cylinder, the fluid of oil cylinder cavity of resorption 28 balancing overflow valve 30, hydraulic control one-way valve 36 combined effect under, being sealed, it is impossible to flowing, oil cylinder cavity of resorption 28 forms corresponding oil pressure, the gravity of balance lifting frame 2, makes elevator platform 2 be in halted state.If balancing overflow valve 30 or hydraulic control one-way valve 36 also break down, then elevator platform 2 moves down under gravity, the fluid of oil cylinder cavity of resorption 28 is flowed out by the damping hole 20-6 of check valve 20 lower end, owing to the damping hole 20-6 fluid that can oil cylinder cavity of resorption 28 be flowed out produces damping action, the rate of outflow of limit for tonnage oil cylinder cavity of resorption 28 fluid, be equivalent to the decrease speed limiting piston 13 and piston rod 14, even if namely ensureing that elevator platform 2 is nonserviceabled, also move down only in very low speed, until elevator platform 2 contacts ground, or stroke covered by oil cylinder, till piston 13 is adjacent to oil cylinder bottom end cover 15, avoid elevator platform 2 rapid decrease to be formed to impact, produce loss.
During with hydraulic power driving elevating mechanism for main driving, machine power drives the state of elevating mechanism:
(1), hydraulic power drive elevating mechanism elevator platform 2 to be promoted and during down maneuver, lifting motor 3 is in power down mode, and the brake unit of lifting motor 3 is in "on" position, releases the braking to lifting motor 3, and lifting motor 3 is in servo-actuated state.
(2), hydraulic power drive elevating mechanism when quitting work, lifting motor 3 is in power down mode, and the brake unit of lifting motor 3 is in power down mode, the realization of lifting motor 3 is braked, elevator platform 2 is played a protective role.
Provide the benefit that: a kind of Dual Drive elevating mechanism provided by the invention, it includes machine power simultaneously and drives elevating mechanism and hydraulic power to drive elevating mechanism two to overlap power drive elevating mechanism, its two sets power drive elevating mechanism can work alone respectively, it is also possible to work simultaneously.
A kind of Dual Drive elevating mechanism provided by the invention, a set of driving elevating mechanism of any of which breaks down, and other set drives elevating mechanism can enter main driving condition at once, it is achieved the continuous operation of elevating mechanism.Meanwhile, in Dual Drive elevating mechanism, any a set of driving elevating mechanism is main driving when being operated, and other set drives elevating mechanism automatically as safety guard, elevating mechanism will to be protected, and improves reliability and the safety of elevating mechanism work.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. a Dual Drive elevating mechanism, it is characterised in that including: fixed frame and elevator platform, and include machine power jacking system and hydraulic power jacking system；
Described machine power jacking system includes lifting motor, reductor, gear, tooth bar；Described lifting motor is with brake unit；Described lifting motor is arranged on motor mount, and described motor mount is fixed on elevator platform；The left end of described lifting motor is provided with reductor, and the output shaft of described reductor is connected with gear, and the rotary motion of described lifting motor passes to gear by reductor after being slowed down, and drives gear to rotate；Described tooth bar is arranged on the fixed frame left column of fixed frame, and engages each other with gear；Slow down by the rotary motion of the lifting motor that is arranged on elevator platform and by reductor, drive gear to rotate, it is achieved gear up and down motion in tooth bar vertical direction, it is achieved the lifting action of elevator platform；
Described hydraulic power jacking system includes under hydraulic system, oil cylinder, oil cylinder lower union joint, oil cylinder mounting seat, upper pin on mounting seat, lower bearing pin, oil cylinder；Described oil cylinder includes cylinder tube, cylinder upper end lid, piston, piston rod, bottom end cover, and on described oil cylinder, mounting seat is arranged on the fixed frame crossbeam of fixed frame, and described cylinder upper end lid is formed hinged by upper pin with mounting seat on oil cylinder；Under described oil cylinder, mounting seat is arranged on elevator platform, and described oil cylinder lower union joint top is connected with cylinder piston rod by screw thread, and described oil cylinder lower union joint bottom is formed hinged by lower bearing pin with mounting seat under oil cylinder；Described hydraulic system includes fuel tank, oil filter, oil pump, balancing overflow valve, overflow valve, solenoid directional control valve, hydraulic control one-way valve and some pipelines；Described some pipelines are pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, pipeline nine, it is connected by pipeline two between described fuel tank and oil filter, it is connected by pipeline three between described oil filter and oil pump, it is connected by pipeline four between described oil pump and solenoid directional control valve, is connected by pipeline five between described solenoid directional control valve and hydraulic control one-way valve；nullDescribed piston and piston rod are connected with each other，There is in described oil cylinder cylinder upper cavity oil and oil cylinder cavity of resorption，Described cylinder upper end lid offers oil through one、Hydraulic fluid port on oil through two and oil cylinder，Described cylinder upper cavity oil is by the oil through one on cylinder upper end lid、Oil through two、On oil cylinder, hydraulic fluid port is connected with the pipeline six of hydraulic system，Described bottom end cover offers oil through three、Hydraulic fluid port under oil through four and oil cylinder，The upper end of described oil through three is provided with plug，Described plug offers plug mesopore，The inside of oil through three is provided with check valve and holds chamber，Described check valve holds intracavity and is provided with check valve，Described check valve holds intracavity at it and moves up and down，Described check valve holds the inwall in chamber and forms spool annular chamber with it，The inside of described check valve offers spool mesopore，The sidewall of described check valve offers some spool side openings，The lower end of described check valve has the spool conical surface，Spring is installed between plug and check valve，The spool conical surface of described spring handle check valve lower end is pressed on valve seat，The lower end of described check valve is further opened with damping hole，By plug mesopore when under described oil cylinder, the fluid of intracavity is discharged、Spool mesopore、Damping hole、Oil through three、Oil through four、Under oil cylinder, hydraulic fluid port is connected with the pipeline nine of hydraulic system，Between described balancing overflow valve and pipeline nine, pipeline one is set，Pipeline seven is set between described hydraulic control one-way valve and pipeline six，Pipeline eight is set between described hydraulic control one-way valve and pipeline nine；The pressure oil of described hydraulic system is by hydraulic fluid port, oil through four, oil through three under pipeline nine, oil cylinder, arrive check valve lower end, overcome the active force of spring, the spool conical surface is pushed away valve seat, and pressure oil enters intracavity under oil cylinder again through spool annular chamber, spool side opening, spool mesopore, plug mesopore；Described hydraulic system provides high-voltage oil liquid to oil cylinder, respectively enter cylinder upper cavity oil and the oil cylinder cavity of resorption of oil cylinder, drive piston driving piston rod, and moved up and down by mounting seat under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder and elevator platform, it is achieved the lifting action of elevator platform.
2. Dual Drive elevating mechanism according to claim 1, it is characterized in that: lifting motor is realized braking by dead electricity by the brake unit of described lifting motor, electric to lifting motor realization releasing braking by obtaining, the brake unit of lifting motor has two kinds of mode of operations: independent working mode and co-ordination pattern；
Independent working mode: in lifting motor no power state, the brake unit realization of lifting motor works independently, and namely passes through dead electricity and lifting motor is realized braking, electric to lifting motor realization releasing braking by obtaining；
Co-ordination pattern: the brake unit of lifting motor and lifting motor is energized simultaneously, brake unit releases braking, and lifting motor rotates；The brake unit of lifting motor and lifting motor is dead electricity simultaneously, lifting motor stall, and lifting motor is realized braking by brake unit.
3. Dual Drive elevating mechanism according to claim 1, it is characterised in that: between described fixed frame and elevator platform, guider is set.
4. Dual Drive elevating mechanism according to claim 1, it is characterised in that: described lifting motor is servomotor.
5. Dual Drive elevating mechanism according to claim 1, it is characterised in that: balancing overflow valve and hydraulic control one-way valve in described hydraulic system play balanced action, the gravity of balance lifting frame.
6. Dual Drive elevating mechanism according to claim 1, it is characterised in that: the Median Function of the solenoid directional control valve in described hydraulic system is " H " type.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258632A (en) * | 1998-12-14 | 2000-07-05 | Lg产电株式会社 | Hydraulic elevator system |
| CN1886324A (en) * | 2003-10-01 | 2006-12-27 | 洛格斯革新有限公司 | Lifting device, especially a lift or a lifting platform |
| CN201864489U (en) * | 2010-11-30 | 2011-06-15 | 株洲天桥起重机股份有限公司 | Ladle crane hoisting device |
| CN202808123U (en) * | 2012-08-22 | 2013-03-20 | 中国建筑科学研究院建筑机械化研究分院 | Double-guide-pillar large load capacity hoisting lifting equipment |
| CN103264971A (en) * | 2013-06-18 | 2013-08-28 | 山东丰汇设备技术有限公司 | Expansion driving type hoisting and lifting mechanism |
| CN203740826U (en) * | 2014-01-29 | 2014-07-30 | 中交天津航道局有限公司 | Dual-drive elevator mechanism |
-
2014
- 2014-01-29 CN CN201410044057.1A patent/CN103787178B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258632A (en) * | 1998-12-14 | 2000-07-05 | Lg产电株式会社 | Hydraulic elevator system |
| JP2000219458A (en) * | 1998-12-14 | 2000-08-08 | Lg Industrial Syst Co Ltd | Hydraulic elevator device |
| CN1886324A (en) * | 2003-10-01 | 2006-12-27 | 洛格斯革新有限公司 | Lifting device, especially a lift or a lifting platform |
| CN201864489U (en) * | 2010-11-30 | 2011-06-15 | 株洲天桥起重机股份有限公司 | Ladle crane hoisting device |
| CN202808123U (en) * | 2012-08-22 | 2013-03-20 | 中国建筑科学研究院建筑机械化研究分院 | Double-guide-pillar large load capacity hoisting lifting equipment |
| CN103264971A (en) * | 2013-06-18 | 2013-08-28 | 山东丰汇设备技术有限公司 | Expansion driving type hoisting and lifting mechanism |
| CN203740826U (en) * | 2014-01-29 | 2014-07-30 | 中交天津航道局有限公司 | Dual-drive elevator mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103787178A (en) | 2014-05-14 |
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