CN103754737B - Dual Drive elevating mechanism - Google Patents
Dual Drive elevating mechanism Download PDFInfo
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- CN103754737B CN103754737B CN201410043029.8A CN201410043029A CN103754737B CN 103754737 B CN103754737 B CN 103754737B CN 201410043029 A CN201410043029 A CN 201410043029A CN 103754737 B CN103754737 B CN 103754737B
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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 and 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 downside pin with mounting seat under oil cylinder；Described hydraulic system includes fuel tank, balancing overflow valve, overflow valve, oil filter, oil pump, 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, it is connected by pipeline one between described fuel tank and oil filter, it is connected by pipeline two between described oil filter and oil pump, it is connected by pipeline three between described oil pump and solenoid directional control valve, the oil-in of described overflow valve and pipeline tee joint, and be connected with the oil-out of oil pump by pipeline three, the oil-out of overflow valve is connected with fuel tank；It is connected by pipeline four and pipeline five between described solenoid directional control valve and hydraulic control one-way valve；Described 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 air, 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 damping hole, oil cylinder cavity of resorption passes through damping hole, oil through three, oil through four, under oil cylinder, hydraulic fluid port is connected with one end of the pipeline six of hydraulic system, the other end of pipeline six is connected with hydraulic control one-way valve；Between described balancing overflow valve and pipeline six, pipeline seven is set；When described hydraulic system passes through the right position of solenoid directional control valve to oil cylinder cavity of resorption offer hydraulic oil, the gravity of elevator platform can be overcome, drive piston driving piston rod, and drive elevator platform to move upward by mounting seat under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, it is achieved the enhancing action of elevator platform；Described hydraulic system by the left position of solenoid directional control valve, control port from pipeline five to hydraulic control one-way valve provide hydraulic oil time, hydraulic control one-way valve is reversely opened, the gravity of elevator platform forms oil pressure at oil cylinder cavity of resorption, under oil cylinder the fluid of intracavity can by hydraulic fluid port under damping hole, oil through three, oil through four, oil cylinder, pipeline six, hydraulic control one-way valve, solenoid directional control valve left position return to fuel tank, effect due to damping hole, elevator platform realizes slowly decline under the effect of gravity and damping force, it is achieved the down maneuver 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 described 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.
Between above-mentioned fixed frame and elevator platform, guider is set.
Above-mentioned damping hole can be arranged on bottom end cover from oil cylinder cavity of resorption to oil cylinder under any position on hydraulic fluid port access.
Above-mentioned lifting motor is common electric machine or servomotor.
Balancing overflow valve in above-mentioned hydraulic system and hydraulic control one-way valve are when hydraulic system quits work, it is possible to play balanced action, 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 and gear 6, tooth bar 7 and forms；Described 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, balancing overflow valve 30, overflow valve 31, oil filter 32, oil pump 33, solenoid directional control valve 34, hydraulic control one-way valve 35 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.It is connected by pipeline 1 between fuel tank 29 with oil filter 32, it is connected by pipeline 2 37 between oil filter 32 with oil pump 33, it is connected by pipeline 3 38 between oil pump 33 with solenoid directional control valve 34, the oil-in of overflow valve 31 connects with pipeline 3 38, and be connected by the oil-out of pipeline 3 38 with oil pump 33, the oil-out of overflow valve 31 is connected with fuel tank 29；It is connected by pipeline 4 39 and pipeline 5 40 between solenoid directional control valve 34 with hydraulic control one-way valve 35.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 air，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 damping hole 20，Oil cylinder cavity of resorption 28 is by damping hole 20、Oil through 3 21、Oil through 4 22、Under oil cylinder, hydraulic fluid port 23 is connected with one end of the pipeline 6 41 of hydraulic system；The other end of pipeline 6 41 is connected with hydraulic control one-way valve 35；Pipeline 7 42 is set between balancing overflow valve 30 and pipeline 6 41.Hydraulic system by the right position of solenoid directional control valve 34 to oil cylinder cavity of resorption 28 hydraulic oil is provided time, the gravity of elevator platform 2 can be overcome, piston 13 is driven to drive piston rod 14, and drive elevator platform 2 to move upward by mounting seat 17 under piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, oil cylinder, it is achieved the enhancing action of elevator platform 2；The hydraulic system left position by solenoid directional control valve 34, control port from pipeline 5 40 to hydraulic control one-way valve 35 provide hydraulic oil time, hydraulic control one-way valve 35 is reversely opened, the gravity of elevator platform 2 forms oil pressure at oil cylinder cavity of resorption 28, fluid in oil cylinder cavity of resorption 28 can pass through damping hole 20, oil through 3 21, oil through 4 22, hydraulic fluid port 23 under oil cylinder, pipeline 6 41, hydraulic control one-way valve 35, the left position of solenoid directional control valve 34 returns to fuel tank 29, effect due to damping hole 20, elevator platform 2 realizes slowly decline under the effect of gravity and damping force, realize the down maneuver of elevator platform 2.
Guider can be set between fixed frame 1 and elevator platform 2；Damping hole 20 can be arranged on bottom end cover 15 from oil cylinder cavity of resorption 28 to oil cylinder any position on hydraulic fluid port 23 access；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 35 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 34 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:
(1), hydraulic power drives the lifting state of elevating mechanism: solenoid directional control valve 34 is in right position duty, the oil-in of oil pump 33 passes through oil filter 32 oil suction from fuel tank 29, the hydraulic oil of oil pump 33 oil-out passes through pipeline 3 38, the right position of solenoid directional control valve 34, pipeline 4 39, hydraulic control one-way valve 35, pipeline 6 41, hydraulic fluid port 23 under oil cylinder, oil through 4 22, oil through 3 21, damping hole 20 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；
null(2)、Hydraulic power drives the decline state of elevating mechanism: solenoid directional control valve 34 is in left position duty，The oil-in of oil pump 33 passes through oil filter 32 oil suction from fuel tank 29，The hydraulic oil of oil pump 33 oil-out passes through pipeline 3 38、The left position of solenoid directional control valve 34、Pipeline 5 40、Arrive hydraulic control one-way valve 35 control port，Hydraulic control one-way valve 35 is reversely opened，The gravity of elevator platform 2 forms oil pressure in oil cylinder cavity of resorption 28，Fluid in oil cylinder cavity of resorption 28 can pass through damping hole 20、Oil through 3 21、Oil through 4 22、Hydraulic fluid port 23 under oil cylinder、Pipeline 6 41、Hydraulic control one-way valve 35、The left position of solenoid directional control valve 34 returns to fuel tank 29，Damping action due to damping hole 20，Elevator platform 2 realizes slowly decline under the effect of gravity and damping force，Realize the down maneuver of elevator platform 2；
(3), hydraulic power drives the halted state of elevating mechanism: solenoid directional control valve 34 is in middle position duty, if oil pump 33 does not quit work, the oil-in of oil pump 33 passes through oil filter 32 oil suction from fuel tank 29, the fluid of oil pump 33 oil-out passes through pipeline 3 38, in solenoid directional control valve 34, position returns to fuel tank 29, the gravity of elevator platform 2 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 under the combined effect of balancing overflow valve 30 and hydraulic control one-way valve 35, 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 33 is in the state of quitting work, and solenoid directional control valve 34 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.While elevator platform 2 promotes, piston 13 is driven to move upward by mounting seat under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, now, oil cylinder cavity of resorption 28 draws fluid by position in hydraulic fluid port 23, pipeline 6 41, hydraulic control one-way valve 35, pipeline 4 39, solenoid directional control valve 34 under damping hole 20, oil through 3 21, oil through 4 22, oil cylinder from fuel tank 29, and 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, piston 13 is driven 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 7 42, balancing overflow valve 30 under damping hole 20, oil through 3 21, oil through 4 22, oil cylinder, 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 is under the combined effect of balancing overflow valve 30 and hydraulic control one-way valve 35, 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 35 also break down, then elevator platform 2 moves down under gravity, the fluid of oil cylinder cavity of resorption 28 is flowed out by damping hole 20, the fluid that oil cylinder cavity of resorption 28 can be flowed out due to damping hole 20 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 and 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, 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 downside pin with mounting seat under oil cylinder；nullDescribed hydraulic system includes fuel tank、Balancing overflow valve、Overflow valve、Oil filter、Oil pump、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，It is connected by pipeline one between described fuel tank and oil filter，It is connected by pipeline two between described oil filter and oil pump，It is connected by pipeline three between described oil pump and solenoid directional control valve，The oil-in of described overflow valve and pipeline tee joint，And be connected with the oil-out of oil pump by pipeline three，The oil-out of overflow valve is connected with fuel tank，It is connected by pipeline four and pipeline five between described solenoid directional control valve and hydraulic control one-way valve，Described 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 air，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 damping hole，Oil cylinder cavity of resorption passes through damping hole、Oil through three、Oil through four、Under oil cylinder, hydraulic fluid port is connected with one end of the pipeline six of hydraulic system，The other end of pipeline six is connected with hydraulic control one-way valve，Between described balancing overflow valve and pipeline six, pipeline seven is set；When described hydraulic system passes through the right position of solenoid directional control valve to oil cylinder cavity of resorption offer hydraulic oil, overcome the gravity of elevator platform, drive piston driving piston rod, and drive elevator platform to move upward by mounting seat under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, it is achieved the enhancing action of elevator platform；Described hydraulic system by the left position of solenoid directional control valve, control port from pipeline five to hydraulic control one-way valve provide hydraulic oil time, hydraulic control one-way valve is reversely opened, the gravity of elevator platform forms oil pressure at oil cylinder cavity of resorption, under oil cylinder the fluid of intracavity by hydraulic fluid port under damping hole, oil through three, oil through four, oil cylinder, pipeline six, hydraulic control one-way valve, solenoid directional control valve left position return to fuel tank, effect due to damping hole, elevator platform realizes slowly decline under the effect of gravity and damping force, it is achieved the down maneuver 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 described 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 in described hydraulic system and hydraulic control one-way valve, when hydraulic system quits work, 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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| CN201410043029.8A CN103754737B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
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| CN201410043029.8A CN103754737B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
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| CN103754737B true CN103754737B (en) | 2016-07-06 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934732A (en) * | 1973-08-09 | 1976-01-27 | Glass Tubes And Components Limited | Object transfer machine |
| 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 |
| CN201330081Y (en) * | 2008-12-30 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Mechanical synchronous helical elevating piler |
| CN203740825U (en) * | 2014-01-29 | 2014-07-30 | 中交天津航道局有限公司 | Dual-driven lifting mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07315576A (en) * | 1994-05-23 | 1995-12-05 | Chikara Gosei Jushi:Kk | Container stock device |
-
2014
- 2014-01-29 CN CN201410043029.8A patent/CN103754737B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934732A (en) * | 1973-08-09 | 1976-01-27 | Glass Tubes And Components Limited | Object transfer machine |
| 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 |
| CN201330081Y (en) * | 2008-12-30 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Mechanical synchronous helical elevating piler |
| CN203740825U (en) * | 2014-01-29 | 2014-07-30 | 中交天津航道局有限公司 | Dual-driven lifting mechanism |
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