CN203740825U - Dual-driven lifting mechanism - Google Patents
Dual-driven lifting mechanism Download PDFInfo
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- CN203740825U CN203740825U CN201420056797.2U CN201420056797U CN203740825U CN 203740825 U CN203740825 U CN 203740825U CN 201420056797 U CN201420056797 U CN 201420056797U CN 203740825 U CN203740825 U CN 203740825U
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- oil cylinder
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- lifting motor
- lifting mechanism
- elevator platform
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Abstract
The utility model discloses a dual-driven lifting mechanism which comprises a mechanical power driven lifting mechanism body and a hydraulic power driven lifting mechanism body at the same time. The two power driven lifting mechanism bodies can work independently and can work at the same time. According to the dual-driven lifting mechanism, when any one of the driven lifting mechanism bodies breaks down, the other driven lifting mechanism body can enter a masterdrive state immediately, and continuous work of the lifting mechanism can be achieved. Meanwhile, according to the dual-driven lifting mechanism, when any one of the driven lifting mechanism bodies works as masterdrive, the other driven lifting mechanism body can be adopted as a safety protection device automatically to protect the lifting mechanism, and the work reliability and safety of the lifting mechanism are improved.
Description
Technical field
The utility model relates to a kind of Dual Drive lifting mechanism, is specifically related to a kind of mechanical-hydraulic Dual Drive lifting mechanism, belongs 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 utility model 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.
Utility model content
In order to improve reliability and the safety of lifting mechanism work, the utility model provides a kind of Dual Drive lifting mechanism, and 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, the technical solution of the utility model is as follows:
A Dual Drive lifting mechanism, 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 and 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 described oil cylinder lower union joint top is connected with cylinder piston rod by screw thread, and described oil cylinder lower union joint bottom forms hinged by mount pad under downside pin 8 and oil cylinder, described hydraulic efficiency pressure system comprises fuel tank, balancing overflow valve, by pass valve, oil filter, oil pump, solenoid directional control valve, hydraulic control one-way valve and some pipelines, described pipeline be pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, described oil cylinder comprises cylinder tube, upper end cover, piston, piston rod, bottom end cover, 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, hydraulic fluid port and atmosphere are 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, oil cylinder cavity of resorption passes through damping hole, oil through three, oil through four, under oil cylinder, the pipeline six of hydraulic fluid port and hydraulic efficiency pressure system is connected, when the right position of described hydraulic efficiency pressure system by solenoid directional control valve provides high pressure oil to oil cylinder cavity of resorption, can overcome the gravity of elevator platform, driven plunger drives piston rod, and drive elevator platform upward movement by mount pad under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, realize the enhancing action of elevator platform, when the left position of described hydraulic efficiency pressure system by solenoid directional control valve, pipeline five provide high pressure oil to the control port of hydraulic control one-way valve, hydraulic control one-way valve is oppositely opened, the gravity of elevator platform forms oil pressure at oil cylinder cavity of resorption, fluid in oil cylinder cavity of resorption can be got back to fuel tank by the left position of hydraulic fluid port, pipeline six, hydraulic control one-way valve, solenoid directional control valve under damping hole, oil through three, oil through four, oil cylinder, effect due to damping hole, elevator platform is realized slow decreasing under the effect of gravity and dumping force, realizes the down maneuver 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 is 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 in above-mentioned hydraulic efficiency pressure system and hydraulic control one-way valve, when hydraulic efficiency pressure system quits work, can play equilibrium activity, the gravity of 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 that the utility model provides, 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 that the utility model provides, 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 utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model 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 that lifting motor 3, reductor 5 and gear 6, tooth bar 7 form; Described 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.
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 rotatablely moving of lifting motor 3 can be by passing to gear 6 after reductor 5 decelerations, driven wheel 6 rotations.Tooth bar 7 is arranged on the fixed frame left column 8 of fixed frame 1, and intermeshing with gear 6.By be arranged on the rotatablely moving of lifting motor 3 on elevator platform 2, and by reductor 5 slow down, driven wheel 6 rotations, realize the up-and-down movement of gear 6 in tooth bar 7 vertical direction, realize the lifting action of elevator platform 2.
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, balancing overflow valve 30, by pass 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.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, hydraulic fluid port 26 and atmosphere are 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 6 41 of hydraulic fluid port 23 and hydraulic efficiency pressure system is connected.When the right position of hydraulic efficiency pressure system by solenoid directional control valve 34 provides high pressure oil to oil cylinder cavity of resorption 28, can overcome the gravity of elevator platform 2, driven plunger 13 drives piston rod 14, and drive elevator platform 2 upward movements by mount pad under piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, oil cylinder 17, realize the enhancing action of elevator platform 2, hydraulic efficiency pressure system is by the left position of solenoid directional control valve 34, when pipeline 5 40 provides high pressure oil to the control port of hydraulic control one-way valve 35, hydraulic control one-way valve 35 is oppositely 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, under oil cylinder, hydraulic fluid port 23, pipeline 6 41, hydraulic control one-way valve 35, fuel tank 29 is got back in the left position of solenoid directional control valve 34, effect due to damping hole 20, elevator platform 2 is realized slow decreasing under the effect of gravity and dumping force, realize the down maneuver 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 hydraulic control one-way valve 35 in hydraulic efficiency pressure system play equilibrium activity, gravity that can balance lifting frame.The Median Function of the solenoid directional control valve 34 in hydraulic efficiency pressure system is " H " type.
A kind of Dual Drive lifting mechanism that the utility model provides, 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 34 is in right position mode of operation, the oil inlet of oil pump 33 is by oil filter 32 oil suction from fuel tank 29, the high pressure oil of oil pump 33 oil outlets is by pipeline 3 38, the right position of solenoid directional control valve 34, pipeline 4 39, hydraulic control one-way valve 35, pipeline 6 41, under oil cylinder, hydraulic fluid port 23, 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 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,
(2), hydraulic power drives the decline state of lifting mechanism: solenoid directional control valve 34 is in left position mode of operation, the oil inlet of oil pump 33 is by oil filter 32 oil suction from fuel tank 29, the high pressure oil of oil pump 33 oil outlets is by pipeline 3 38, the left position of solenoid directional control valve 34, pipeline 5 40, arrive hydraulic control one-way valve 35 control ports, hydraulic control one-way valve 35 is oppositely opened, the gravity of elevator platform 2 is at the interior formation oil pressure of 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, under oil cylinder, hydraulic fluid port 23, pipeline 6 41, hydraulic control one-way valve 35, fuel tank 29 is got back in the left position of solenoid directional control valve 34, shock damping action due to damping hole 20, elevator platform 2 is realized slow decreasing under the effect of gravity and dumping force, realize the down maneuver of elevator platform 2,
(3), hydraulic power drives the halted state of lifting mechanism: solenoid directional control valve 34 is in meta mode of operation, if oil pump 33 does not quit work, the oil inlet of oil pump 33 is by oil filter 32 oil suction from fuel tank 29, the fluid of oil pump 33 oil outlets is by pipeline 3 38, solenoid directional control valve 34 metas are got back to fuel tank 29, the gravity of elevator platform 2 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 under the combined action of balancing overflow valve 30 and hydraulic control one-way valve 35, 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:
Oil pump 33 is in the state of quitting work, and solenoid directional control valve 34 is in meta mode of operation.
(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 6 41, hydraulic control one-way valve 35, pipeline 4 39, solenoid directional control valve 34 metas 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 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, the hydraulic oil of oil cylinder cavity of resorption 28 is got back 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 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 and hydraulic control one-way valve 35, 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 hydraulic control one-way valve 35 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 that the utility model provides, 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 that the utility model provides, 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 preferred implementation of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
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 and 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 described oil cylinder lower union joint top is connected with cylinder piston rod by screw thread, and described oil cylinder lower union joint bottom forms hinged by mount pad under downside pin 8 and oil cylinder, described hydraulic efficiency pressure system comprises fuel tank, balancing overflow valve, by pass valve, oil filter, oil pump, solenoid directional control valve, hydraulic control one-way valve and some pipelines, described pipeline be pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, described oil cylinder comprises cylinder tube, upper end cover, piston, piston rod, bottom end cover, 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, hydraulic fluid port and atmosphere are 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, oil cylinder cavity of resorption passes through damping hole, oil through three, oil through four, under oil cylinder, the pipeline six of hydraulic fluid port and hydraulic efficiency pressure system is connected, when the right position of described hydraulic efficiency pressure system by solenoid directional control valve provides high pressure oil to oil cylinder cavity of resorption, can overcome the gravity of elevator platform, driven plunger drives piston rod, and drive elevator platform upward movement by mount pad under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, realize the enhancing action of elevator platform, when the left position of described hydraulic efficiency pressure system by solenoid directional control valve, pipeline five provide high pressure oil to the control port of hydraulic control one-way valve, hydraulic control one-way valve is oppositely opened, the gravity of elevator platform forms oil pressure at oil cylinder cavity of resorption, fluid in oil cylinder cavity of resorption can be got back to fuel tank by the left position of hydraulic fluid port, pipeline six, hydraulic control one-way valve, solenoid directional control valve under damping hole, oil through three, oil through four, oil cylinder, effect due to damping hole, elevator platform is realized slow decreasing under the effect of gravity and dumping force, realizes the down maneuver 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 is 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: the balancing overflow valve in described hydraulic efficiency pressure system and hydraulic control one-way valve, when hydraulic efficiency pressure system quits work, can play equilibrium activity, the gravity of 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056797.2U CN203740825U (en) | 2014-01-29 | 2014-01-29 | Dual-driven lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056797.2U CN203740825U (en) | 2014-01-29 | 2014-01-29 | Dual-driven lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203740825U true CN203740825U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420056797.2U Expired - Fee Related CN203740825U (en) | 2014-01-29 | 2014-01-29 | Dual-driven lifting mechanism |
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| CN (1) | CN203740825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754737A (en) * | 2014-01-29 | 2014-04-30 | 中交天津航道局有限公司 | Double-drive lifting mechanism |
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2014
- 2014-01-29 CN CN201420056797.2U patent/CN203740825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754737A (en) * | 2014-01-29 | 2014-04-30 | 中交天津航道局有限公司 | Double-drive lifting mechanism |
| CN103754737B (en) * | 2014-01-29 | 2016-07-06 | 中交天津航道局有限公司 | Dual Drive elevating mechanism |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |