CN103754736A - Double-drive lifting mechanism - Google Patents
Double-drive lifting mechanism Download PDFInfo
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- CN103754736A CN103754736A CN201410043028.3A CN201410043028A CN103754736A CN 103754736 A CN103754736 A CN 103754736A CN 201410043028 A CN201410043028 A CN 201410043028A CN 103754736 A CN103754736 A CN 103754736A
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Abstract
The invention discloses a double-drive lifting mechanism. The double-drive lifting mechanism simultaneously comprises two power drive lifting mechanisms including a mechanical power drive lifting mechanism and a hydraulic power drive lifting mechanism, the two power drive lifting mechanisms can respectively work independently and can also simultaneously work. According to the double-drive lifting mechanism, if one power drive lifting mechanism breaks down, the other power drive lifting mechanism can enter the main driving state immediately, and continuous work of the lifting mechanism is achieved. Meanwhile, according to the double-drive lifting mechanism, when one drive lifting mechanism works as a main drive, the other drive lifting mechanism will automatically serve as a safety protection device to protect the lifting mechanism, and working reliability and working safety of the lifting mechanism are improved.
Description
Technical field
The present invention relates to a kind of Dual Drive lifting mechanism, be specifically related to a kind of mechanical-hydraulic Dual Drive lifting mechanism, belong to electric and mechanical & electrical technology field.
Background technology
At present, lifting mechanism is widely used in the fields such as lifting, loading, transportation, and common lifting mechanism has driving, elevator etc.Mainly contain the compositions such as lifting motor, reductor, cable wire, reel.Its basic functional principle is: by controlling the hand of rotation of lifting motor, drive the positive and negative rotation of reel, realize the folding and unfolding of reel to cable wire, complete promoting the lifting of thing.But for certain some important occasion, as the lifting of visual plant, need more consideration safety and reliabilities, so, once lifting mechanism et out of order must have more safety precautions on the one hand, prevent from promoting falling fast of thing, damage and promote thing; On the other hand must be rapidly trouble-shooting, or can start the second cover lifting mechanism, assurance lifting mechanism can normal and continuous operation.
For certain some more special occasion, for guaranteeing that lifting mechanism can normal and continuous operation, and the reliability and the safety that improve lifting mechanism work, the present invention is desirable to provide the technical scheme of a set of double dynamical driving lifting mechanism, for the reliable operation of lifting mechanism provides safeguard.
Summary of the invention
In order to improve reliability and the safety of lifting mechanism work, the invention provides a kind of Dual Drive lifting mechanism, it includes mechanical power simultaneously and drives lifting mechanism and hydraulic power to drive lifting mechanism two cover power driven lifting mechanisms.
In order to reach above object, technical scheme of the present invention is as follows:
A Dual Drive lifting mechanism, it comprises: fixed frame and elevator platform, and comprise mechanical power jacking system and hydraulic power jacking system;
Described mechanical power jacking system comprises lifting motor, reductor, gear, tooth bar; Described lifting motor is with brake equipment; 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 rotatablely moving of described lifting motor passes to gear after can slowing down by reductor, driven wheel rotation; Described tooth bar is arranged on the fixed frame left column of fixed frame, and intermeshing with gear; By be arranged on lifting motor on elevator platform rotatablely move and by reductor slow down, driven wheel rotates, and realizes the up-and-down movement of gear in tooth bar vertical direction, realizes the lifting action of elevator platform;
Described hydraulic pressure power-driven system comprises under hydraulic efficiency pressure system, oil cylinder, oil cylinder lower union joint, oil cylinder mount pad, upper pin on mount pad, lower bearing pin, oil cylinder, on described oil cylinder, mount pad is arranged on the fixed frame crossbeam of fixed frame, and described oil cylinder upper end cover forms hinged by mount pad on upper pin and oil cylinder, under described oil cylinder, mount pad is arranged on elevator platform, and the top of described oil cylinder lower union joint is connected with cylinder piston rod by screw thread, and oil cylinder lower union joint bottom forms hinged by mount pad under lower bearing pin and oil cylinder, described hydraulic efficiency pressure system comprises fuel tank, oil filter, oil pump, balancing overflow valve, by pass valve, solenoid directional control valve, check valve and some pipelines, described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, described oil cylinder comprises cylinder tube, upper end cover, piston, piston rod, bottom end cover, described piston and piston rod interconnect, in described oil cylinder, there is cylinder upper cavity oil and oil cylinder cavity of resorption, on described upper end cover, offer 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 upper end cover, oil through two, on oil cylinder, the pipeline six of hydraulic fluid port and hydraulic efficiency pressure system is connected, on described bottom end cover, offer 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, on described plug, offer damping hole, described oil cylinder cavity of resorption passes through damping hole, oil through three, oil through four, under oil cylinder, the pipeline of hydraulic fluid port and hydraulic efficiency pressure system is connected, described hydraulic efficiency pressure system provides high-voltage oil liquid to oil cylinder, enter respectively cylinder upper cavity oil and the oil cylinder cavity of resorption of oil cylinder, can driven plunger drive piston rod, and by mount pad and elevator platform up-and-down movement under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, realize the lifting action of elevator platform.
The brake equipment of above-mentioned lifting motor can be realized braking to lifting motor by dead electricity, and by must electricly realizing brake off to lifting motor, the brake equipment of described lifting motor has two kinds of mode of operations: independent working mode and co-ordination pattern;
Independent working mode: at lifting motor no power state, the brake equipment of lifting motor can be realized and working independently, realizes braking by dead electricity to lifting motor, by must electricly realizing brake off to lifting motor;
Co-ordination pattern: the brake equipment of lifting motor and lifting motor is switched on simultaneously, brake equipment brake off, lifting motor rotation; The brake equipment of lifting motor and lifting motor is dead electricity simultaneously, lifting motor stall, and brake equipment is realized braking to lifting motor.
Between above-mentioned fixed frame and elevator platform, guide piece can be set.
Above-mentioned damping hole can be arranged on bottom end cover from oil cylinder cavity of resorption to oil cylinder any position on hydraulic fluid port access.
Above-mentioned lifting motor is common electric machine or servomotor.
Balancing overflow valve and check valve in above-mentioned hydraulic efficiency pressure system play equilibrium activity, gravity that can balance lifting frame.
The Median Function of the solenoid directional control valve in above-mentioned hydraulic efficiency pressure system is " H " type.
Beneficial effect is: a kind of Dual Drive lifting mechanism provided by the invention, it includes mechanical power simultaneously and drives lifting mechanism and hydraulic power to drive lifting mechanism two cover power driven lifting mechanisms, its two covers power driven lifting mechanism can work alone respectively, also can work simultaneously.
A kind of Dual Drive lifting mechanism provided by the invention, any a set of driving lifting mechanism et out of order wherein, a set of driving lifting mechanism can enter main driving condition at once in addition, realizes the continuous working of lifting mechanism.Simultaneously; in Dual Drive lifting mechanism, any a set of driving lifting mechanism is that main driving is while carrying out work; a set of driving lifting mechanism will be automatically as safety guard in addition, and lifting mechanism is protected, and has improved reliability and the safety of lifting mechanism work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of Dual Drive lifting mechanism, comprising: fixed frame 1 and elevator platform 2, and comprise mechanical power jacking system and hydraulic power jacking system;
Mechanical power jacking system comprises lifting motor 3, reductor 5, gear 6, tooth bar 7; Lifting motor 3 is with brake equipment (accompanying drawing unreacted out), the brake equipment of lifting motor 3 can be realized braking to lifting motor 3 by dead electricity, by must electricly realizing brake off to lifting motor 3, the brake equipment of lifting motor 3 has two kinds of mode of operations: independent working mode and co-ordination pattern.Independent working mode: at lifting motor 3 no power states, the brake equipment of lifting motor 3 can be realized and working independently, realizes braking by dead electricity to lifting motor 3, by must electricly realizing brake off to lifting motor 3.Co-ordination pattern: the brake equipment of lifting motor 3 and lifting motor 3 is switched on simultaneously, brake equipment brake off, lifting motor 3 rotations; The brake equipment of lifting motor 3 and lifting motor 3 is dead electricity simultaneously, lifting motor 3 stalls, and brake equipment is realized braking to lifting motor 3.
Hydraulic pressure power-driven system comprises under hydraulic efficiency pressure system, oil cylinder, oil cylinder lower union joint 16, oil cylinder mount pad 10, upper pin 11 on mount pad 17, lower bearing pin 18, oil cylinder.On oil cylinder, mount pad 10 is arranged on the fixed frame crossbeam 9 of fixed frame 1, and oil cylinder upper end cover 12 forms hinged by mount pad on upper pin 11 and oil cylinder 10.Under oil cylinder, mount pad 17 is arranged on elevator platform 2, and oil cylinder lower union joint 16 tops are connected with cylinder piston rod 14 by screw thread, and oil cylinder lower union joint 16 bottoms form hinged by mount pad under lower bearing pin 18 and oil cylinder 17.Hydraulic efficiency pressure system comprises fuel tank 29, oil filter 33, oil pump 34, balancing overflow valve 30, by pass valve 32, solenoid directional control valve 35, check 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, oil cylinder comprises cylinder tube, upper end cover 12, piston 13, piston rod 14, bottom end cover 15, piston 13 and piston rod 14 interconnect, in oil cylinder, there is cylinder upper cavity oil 27 and oil cylinder cavity of resorption 28, on upper end cover 12, offer oil through 1, on oil through 2 25 and oil cylinder, hydraulic fluid port 26, cylinder upper cavity oil 27 is by the oil through 1 on upper end cover 12, oil through 2 25, on oil cylinder, the pipeline 6 41 of hydraulic fluid port 26 and hydraulic efficiency pressure system is connected, on bottom end cover 15, offer oil through 3 21, under oil through 4 22 and oil cylinder, hydraulic fluid port 23, the upper end of oil through 3 21 is provided with plug 19, on plug 19, offer 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, the pipeline 8 43 of hydraulic fluid port 23 and hydraulic efficiency pressure system is connected.Hydraulic efficiency pressure system provides high-voltage oil liquid to oil cylinder, enter respectively cylinder upper cavity oil 27 and the oil cylinder cavity of resorption 28 of oil cylinder, can driven plunger 13 drive piston rod 14, and by mount pad 17 and elevator platform 2 up-and-down movements under piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, oil cylinder, realize the lifting action of elevator platform 2.
Between fixed frame 1 and elevator platform 2, guide piece can be set; 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, can be also servomotor; Balancing overflow valve 30 and check valve 36 in hydraulic efficiency pressure system play equilibrium activity, gravity that can balance lifting frame.The Median Function of the solenoid directional control valve 35 in hydraulic efficiency pressure system is " H " type.
A kind of Dual Drive lifting mechanism provided by the invention, the mechanical power that it comprises drives lifting mechanism and hydraulic power to drive lifting mechanism can work alone respectively, also can work simultaneously.
Mechanical power drives the principle that works alone of lifting mechanism:
(1) lifting motor 3, by drive installation on elevator platform 2 produces and rotatablely moves, and by reductor 5 decelerations, driven wheel 6 rotations, realizes the up-and-down movement of gear 6 in tooth bar 7 vertical direction, realizes the lifting action of elevator platform 2.By changing the direction that rotatablely moves of lifting motor 3, can realize respectively lifting and the down maneuver of elevator platform 2.During lifting motor 3 work, the brake equipment of lifting motor 3, in "on" position, is removed lifting motor 3 brakings.
(2), lifting motor 3 is when quit work, the brake equipment of lifting motor 3, in off-position, is realized the braking to lifting motor 3.
Hydraulic power drives the principle that works alone of lifting mechanism:
(1), hydraulic power drives the lifting state of lifting mechanism: solenoid directional control valve 35 is in right position mode of operation, the oil inlet of oil pump 34 is by oil filter 33 oil suction from fuel tank 29, the high pressure oil of oil pump 34 oil outlets is by pipeline 4 39, the right position of solenoid directional control valve 35, pipeline 5 40, check valve 36, pipeline 7 42, pipeline 8 43, under oil cylinder, hydraulic fluid port 23, oil through 4 22, oil through 3 21, damping hole 20, enter oil cylinder cavity of resorption 28, oil pressure acts on piston 13, form hoisting force, by piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, under oil cylinder, mount pad 17, overcome the gravity of elevator platform 2, the enhancing action of realization to elevator platform 2, the hydraulic oil of cylinder upper cavity oil 27 is by oil through 1, oil through 2 25, on oil cylinder, hydraulic fluid port 26, pipeline 6 41, fuel tank 29 is got back in the right position of solenoid directional control valve 35.
(2), hydraulic power drives the decline state of lifting mechanism: solenoid directional control valve 35 is in left position mode of operation, the oil inlet of oil pump 34 is by oil filter 33 oil suction from fuel tank 29, the high pressure oil of oil pump 34 oil outlets is by pipeline 4 39, the left position of solenoid directional control valve 35, pipeline 6 41, on oil cylinder, hydraulic fluid port 26, oil through 2 25, oil through 1 enters cylinder upper cavity oil 27, oil pressure acts on piston 13, produce downward thrust, now, thrust combined action due to elevator platform 2 gravity and the interior oil pressure formation of cylinder upper cavity oil 27, the inner oil pressure forming of oil cylinder cavity of resorption 28 reaches the operation pressure that balancing overflow valve 30 is set, balancing overflow valve 30 is opened under pressure, the down maneuver of realization to elevator platform 2, the hydraulic oil of 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, pipeline 8 43, pipeline 1, balancing overflow valve 30 is got back to fuel tank 29,
(3), hydraulic power drives the halted state of lifting mechanism: solenoid directional control valve 35 is in meta mode of operation, if oil pump 34 does not quit work, the oil inlet of oil pump 34 is by oil filter 33 oil suction from fuel tank 29, the fluid of oil pump 34 oil outlets is by pipeline 4 39, solenoid directional control valve 35 metas are got back to fuel tank 29, the gravity of elevator platform is by mount pad under oil cylinder 17, 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 action of check valve 36, be closed, cannot flow, oil cylinder cavity of resorption 28 forms corresponding oil pressure, the gravity of balance lifting frame 2, make elevator platform 2 in halted state.
When the mechanical power of take drives lifting mechanism as main driving, hydraulic power drives the principle of work of lifting mechanism:
(1), the lifting state of lifting mechanism 2: the brake equipment of lifting motor 3 is in "on" position, releasing is to lifting motor 3 brakings, lifting motor 3 forward rotation, by reductor 5 driven wheel 6 forward rotation, gear 6 is intermeshing with tooth bar 7, overcome the gravity of elevator platform 2, realize the enhancing action of elevator platform 2.When elevator platform 2 promotes, by mount pad under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, drive piston 13 upward movements, now, oil cylinder cavity of resorption 28 is drawn fluid by hydraulic fluid port 23, pipeline 8 43, check valve 36, pipeline 5 40, solenoid directional control valve 35 metas under damping hole 20, oil through 3 21, oil through 4 22, oil cylinder from fuel tank 29, the hydraulic oil of cylinder upper cavity oil 27 is got back to fuel tank 29 by hydraulic fluid port 26, pipeline 6 41, solenoid directional control valve 35 metas on oil through 1, oil through 2 25, oil cylinder, and oil cylinder is in servo-actuated state.
(2), the decline state of lifting mechanism 2: the brake equipment of lifting motor 3 is in "on" position, releasing is to lifting motor 3 brakings, and lifting motor 3 rotates backward, and by reductor 5 driven wheels 6, rotates backward, gear 6 is intermeshing with tooth bar 7, realizes the down maneuver of elevator platform 2.When elevator platform 2 declines, by mount pad under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, drive piston 13 to move downward, now, due to elevator platform 2 gravity and lifting motor 3 propulsive effort combineds action, the inner oil pressure forming of oil cylinder cavity of resorption 28 reaches the operation pressure that balancing overflow valve 30 is set, balancing overflow valve 30 is opened under pressure, and the hydraulic oil of oil cylinder cavity of resorption 28 is got back to fuel tank 29 by hydraulic fluid port 23, pipeline 8 43, pipeline 1, balancing overflow valve 30 under damping hole 20, oil through 3 21, oil through 4 22, oil cylinder; Cylinder upper cavity oil 27 is drawn fluid by hydraulic fluid port 26, pipeline 6 41, solenoid directional control valve 35 metas 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 lifting mechanism 2: lifting motor 3 is in power down mode, and the brake equipment of lifting motor 3 is in power down mode, to lifting motor 3 brakings, gear 6 stalls, elevator platform 2 stop motions.Once the brake equipment et out of order of lifting motor 3, cannot realize lifting motor 3 brakings, hydraulic power drives lifting mechanism to play a protective role.Brake equipment et out of order due to lifting motor 3, cannot realize lifting motor 3 brakings, the gravity of elevator platform 2 acts on piston 13 by mount pad under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, the fluid of oil cylinder cavity of resorption 28 is under the combined action of balancing overflow valve 30, check valve 36, be closed, cannot flow, oil cylinder cavity of resorption 28 forms corresponding oil pressure, the gravity of balance lifting frame 2, makes elevator platform 2 in halted state.If balancing overflow valve 30 or check valve 36 be et out of order also, elevator platform 2 moves down under the effect of gravity, the fluid of oil cylinder cavity of resorption 28 flows out by damping hole 20, the fluid that can flow out oil cylinder cavity of resorption 28 due to damping hole 20 produces shock damping action, the rate of outflow of limit for tonnage oil cylinder cavity of resorption 28 fluid, be equivalent to limit the descending speed of piston 13 and piston rod 14, even if guaranteeing elevator platform 2 nonserviceables, also can only move down according to very low speed, until elevator platform 2 kiss the earths, or oil cylinder is covered stroke, till piston 13 is adjacent to oil cylinder bottom end cover 15, avoiding elevator platform 2 fast-descendings to form impacts, produce loss.
When the hydraulic power of take drives lifting mechanism as main driving, mechanical power drives the state of lifting mechanism:
(1), hydraulic power drives lifting mechanism to promote elevator platform 2 and during down maneuver, lifting motor 3 is in power down mode, the brake equipment of lifting motor 3, in "on" position, is removed the braking to lifting motor 3, lifting motor 3 is in servo-actuated state.
(2), hydraulic power is while driving lifting mechanism to quit work, lifting motor 3 is in power down mode, the brake equipment of lifting motor 3 is in power down mode, the realization braking to lifting motor 3, plays a protective role to elevator platform 2.
Beneficial effect is: a kind of Dual Drive lifting mechanism provided by the invention, it includes mechanical power simultaneously and drives lifting mechanism and hydraulic power to drive lifting mechanism two cover power driven lifting mechanisms, its two covers power driven lifting mechanism can work alone respectively, also can work simultaneously.
A kind of Dual Drive lifting mechanism provided by the invention, any a set of driving lifting mechanism et out of order wherein, a set of driving lifting mechanism can enter main driving condition at once in addition, realizes the continuous working of lifting mechanism.Simultaneously; in Dual Drive lifting mechanism, any a set of driving lifting mechanism is that main driving is while carrying out work; a set of driving lifting mechanism will be automatically as safety guard in addition, and lifting mechanism is protected, and has improved reliability and the safety of lifting mechanism work.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a Dual Drive lifting mechanism, is characterized in that comprising: fixed frame and elevator platform, and comprise mechanical power jacking system and hydraulic power jacking system;
Described mechanical power jacking system comprises lifting motor, reductor, gear, tooth bar; Described lifting motor is with brake equipment; 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 rotatablely moving of described lifting motor passes to gear after can slowing down by reductor, driven wheel rotation; Described tooth bar is arranged on the fixed frame left column of fixed frame, and intermeshing with gear; By be arranged on lifting motor on elevator platform rotatablely move and by reductor slow down, driven wheel rotates, and realizes the up-and-down movement of gear in tooth bar vertical direction, realizes the lifting action of elevator platform;
Described hydraulic pressure power-driven system comprises under hydraulic efficiency pressure system, oil cylinder, oil cylinder lower union joint, oil cylinder mount pad, upper pin on mount pad, lower bearing pin, oil cylinder, on described oil cylinder, mount pad is arranged on the fixed frame crossbeam of fixed frame, and described oil cylinder upper end cover forms hinged by mount pad on upper pin and oil cylinder, under described oil cylinder, mount pad is arranged on elevator platform, and the top of described oil cylinder lower union joint is connected with cylinder piston rod by screw thread, and oil cylinder lower union joint bottom forms hinged by mount pad under lower bearing pin and oil cylinder, described hydraulic efficiency pressure system comprises fuel tank, oil filter, oil pump, balancing overflow valve, by pass valve, solenoid directional control valve, check valve and some pipelines, described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, described oil cylinder comprises cylinder tube, upper end cover, piston, piston rod, bottom end cover, described piston and piston rod interconnect, in described oil cylinder, there is cylinder upper cavity oil and oil cylinder cavity of resorption, on described upper end cover, offer 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 upper end cover, oil through two, on oil cylinder, the pipeline six of hydraulic fluid port and hydraulic efficiency pressure system is connected, on described bottom end cover, offer 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, on described plug, offer damping hole, described oil cylinder cavity of resorption passes through damping hole, oil through three, oil through four, under oil cylinder, the pipeline of hydraulic fluid port and hydraulic efficiency pressure system is connected, described hydraulic efficiency pressure system provides high-voltage oil liquid to oil cylinder, enter respectively cylinder upper cavity oil and the oil cylinder cavity of resorption of oil cylinder, can driven plunger drive piston rod, and by mount pad and elevator platform up-and-down movement under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, realize the lifting action of elevator platform.
2. Dual Drive lifting mechanism according to claim 1, it is characterized in that: the brake equipment of described lifting motor can be realized braking to lifting motor by dead electricity, by must electricly realizing brake off to lifting motor, the brake equipment of described lifting motor has two kinds of mode of operations: independent working mode and co-ordination pattern;
Independent working mode: at lifting motor no power state, the brake equipment of lifting motor can be realized and working independently, realizes braking by dead electricity to lifting motor, by must electricly realizing brake off to lifting motor;
Co-ordination pattern: the brake equipment of lifting motor and lifting motor is switched on simultaneously, brake equipment brake off, lifting motor rotation; The brake equipment of lifting motor and lifting motor is dead electricity simultaneously, lifting motor stall, and brake equipment is realized braking to lifting motor.
3. Dual Drive lifting mechanism according to claim 1, is characterized in that: between described fixed frame and elevator platform, guide piece can be set.
4. Dual Drive lifting mechanism according to claim 1, is characterized in that: described damping hole can be arranged on bottom end cover from oil cylinder cavity of resorption to oil cylinder any position on hydraulic fluid port access.
5. Dual Drive lifting mechanism according to claim 1, is characterized in that: described lifting motor is common electric machine or servomotor.
6. Dual Drive lifting mechanism according to claim 1, is characterized in that: balancing overflow valve and check valve in described hydraulic efficiency pressure system play equilibrium activity, gravity that can balance lifting frame.
7. Dual Drive lifting mechanism according to claim 1, is characterized in that: the Median Function of the solenoid directional control valve in described hydraulic efficiency pressure system is " H " type.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410043028.3A CN103754736B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410043028.3A CN103754736B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
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| CN103754736A true CN103754736A (en) | 2014-04-30 |
| CN103754736B CN103754736B (en) | 2016-06-29 |
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| CN201410043028.3A Expired - Fee Related CN103754736B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104495585A (en) * | 2014-12-12 | 2015-04-08 | 南京佳汇科技实业有限公司 | Intelligent vertical traction machine |
| CN110529461A (en) * | 2018-05-24 | 2019-12-03 | 发那科株式会社 | Driving device |
| CN114772419A (en) * | 2022-03-23 | 2022-07-22 | 深圳市永达电子信息股份有限公司 | Elevator control system and method based on rack transmission |
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| US3934732A (en) * | 1973-08-09 | 1976-01-27 | Glass Tubes And Components Limited | Object transfer machine |
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| CN103754736B (en) | 2016-06-29 |
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