CN103787227A - Dual-drive lifting mechanism - Google Patents
Dual-drive lifting mechanism Download PDFInfo
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- CN103787227A CN103787227A CN201410043810.5A CN201410043810A CN103787227A CN 103787227 A CN103787227 A CN 103787227A CN 201410043810 A CN201410043810 A CN 201410043810A CN 103787227 A CN103787227 A CN 103787227A
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Abstract
The invention discloses a dual-drive lifting mechanism. The dual-drive lifting mechanism comprises a mechanical power drive lifting mechanism body and a hydraulic power drive lifting mechanism body at the same time, and the two power drive lifting mechanism bodies can not only independently work but also work simultaneously. When one of the two drive lifting mechanism bodies breaks down, the other one can be in the main drive state immediately, and therefore continuous work of the lifting mechanism can be achieved. In addition, according to the dual-drive lifting mechanism, when any one of the power drive lifting mechanism bodies is in the main drive state, the other one can automatically serve as a safety protecting device, the lifting mechanism is protected, and the reliability and the safety of the dual-drive 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 the lifting to promoting 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; Necessary trouble-shooting rapidly on the other hand, or can start the second cover lifting mechanism, guarantee that 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 to overlap power driven lifting mechanism.
In order to reach above object, technical scheme of the present invention is as follows:
A kind of 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, 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 rotation, realize the up-and-down movement of gear in tooth bar vertical direction, realize the lifting action of elevator platform;
Described hydraulic pressure power-driven system comprises hydraulic efficiency pressure system, HM Hydraulic Motor, gear, tooth bar; Described HM Hydraulic Motor is arranged on HM Hydraulic Motor mount pad, and described HM Hydraulic Motor mount pad is fixed on elevator platform, on the output shaft of described HM Hydraulic Motor, gear is installed; Described tooth bar is arranged on fixed frame right column, and intermeshing with gear; Described HM Hydraulic Motor has in HM Hydraulic Motor hydraulic fluid port under hydraulic fluid port and HM Hydraulic Motor; In described HM Hydraulic Motor, in hydraulic fluid port, screw plug is installed, on screw plug, offers damping hole; Right side at screw plug also has oil through; 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; In described HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline six of hydraulic efficiency pressure system, and under HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline five of hydraulic efficiency pressure system; When hydraulic efficiency pressure system by pipeline six and HM Hydraulic Motor on hydraulic fluid port while providing high pressure oil to HM Hydraulic Motor epicoele, can drive HM Hydraulic Motor to be rotated in the forward, and be rotated in the forward by output shaft driven gear, gear, by being meshed with the tooth bar being arranged on fixed frame right column, is realized the enhancing action of elevator platform; When hydraulic efficiency pressure system by pipeline five and HM Hydraulic Motor under hydraulic fluid port while providing high pressure oil to HM Hydraulic Motor cavity of resorption, can drive HM Hydraulic Motor contrarotation, and by the contrarotation of output shaft driven gear, gear, by being meshed with the tooth bar being arranged on fixed frame right column, is realized 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 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 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 to overlap power driven lifting mechanism, 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, wherein any a set of driving lifting mechanism et out of order, 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 rotates; 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 hydraulic efficiency pressure system, HM Hydraulic Motor 10, gear 12, tooth bar 14.HM Hydraulic Motor 10 is arranged on HM Hydraulic Motor mount pad 11, and HM Hydraulic Motor mount pad 11 is fixed on elevator platform 2.Gear 12 is installed on the output shaft of HM Hydraulic Motor 10.Tooth bar 14 is arranged on fixed frame right column 13, and intermeshing with gear 12.HM Hydraulic Motor 10 has in HM Hydraulic Motor hydraulic fluid port 16 under hydraulic fluid port 15 and HM Hydraulic Motor.Screw plug 17 is installed in hydraulic fluid port 15 in HM Hydraulic Motor, on screw plug 17, offers damping hole 18.Also has oil through 19 on the right side of screw plug 17.Hydraulic efficiency pressure system comprises fuel tank 20, oil filter 23, oil pump 24, balancing overflow valve 21, by pass valve 22, solenoid directional control valve 25, check valve 26 and and some pipelines.Pipeline is pipeline 1, pipeline 2 28, pipeline 3 29, pipeline 4 30, pipeline 5 31, pipeline 6 32, pipeline 7 33.In HM Hydraulic Motor, hydraulic fluid port 15 is connected with the pipeline 6 32 of hydraulic efficiency pressure system, and under HM Hydraulic Motor, hydraulic fluid port 16 is connected with the pipeline 5 31 of hydraulic efficiency pressure system.When hydraulic efficiency pressure system by pipeline 6 32 and HM Hydraulic Motor on hydraulic fluid port 15 while providing high pressure oil to HM Hydraulic Motor epicoele, can drive HM Hydraulic Motor 10 to be rotated in the forward, and be rotated in the forward by output shaft driven gear 12, gear 12, by being meshed with the tooth bar 14 being arranged on fixed frame right column 13, is realized the enhancing action of elevator platform 2.When hydraulic efficiency pressure system by pipeline 5 31 and HM Hydraulic Motor under hydraulic fluid port 16 while providing high pressure oil to HM Hydraulic Motor cavity of resorption, can drive HM Hydraulic Motor 10 contrarotations, and by 12 contrarotations of output shaft driven gear, gear 12, by being meshed with the tooth bar 14 being arranged on fixed frame right column 13, is realized the down maneuver of elevator platform 2.
Between fixed frame 1 and elevator platform 2, guide piece can be set; Lifting motor 3 can be common electric machine, can be also servomotor; Balancing overflow valve 21 and check valve 26 in hydraulic efficiency pressure system play equilibrium activity, gravity that can balance lifting frame.The Median Function of the solenoid directional control valve 25 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, by drive installation on elevator platform 23 produces and rotatablely moves, and by reductor 5 slow down, driven wheel 6 rotates, and 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.When lifting motor 3 is worked, the brake equipment of lifting motor 3, in "on" position, is removed lifting motor 3 is braked.
(2), lifting motor 3 is while quitting 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 25 is in right position mode of operation, the oil inlet of oil pump 24 is by oil filter 23 oil suction from fuel tank 20, the high pressure oil of oil pump 24 oil outlets is by pipeline 3 29, the right position of solenoid directional control valve 25, pipeline 4 30, check valve 26, pipeline 6 32, hydraulic fluid port 15 in HM Hydraulic Motor, damping hole 18, oil through 19 enters HM Hydraulic Motor 10 epicoeles, drive HM Hydraulic Motor 10 to be rotated in the forward, and be rotated in the forward by output shaft driven gear 12, gear 12 is by being meshed with the tooth bar 14 being arranged on fixed frame right column 13, overcome the gravity of elevator platform 2, realize the enhancing action of elevator platform 2.The low pressure oil of HM Hydraulic Motor 10 cavity of resorptions is got back to fuel tank 20 by hydraulic fluid port under HM Hydraulic Motor 16, pipeline 5 31, the right position of solenoid directional control valve 25.
(2), hydraulic power drives the decline state of lifting mechanism: solenoid directional control valve 25 is in left position mode of operation, the oil inlet of oil pump 24 is by oil filter 23 oil suction from fuel tank 20, the high pressure oil of oil pump 24 oil outlets enters HM Hydraulic Motor 10 cavity of resorptions by hydraulic fluid port 16 under pipeline 3 29, the left position of solenoid directional control valve 25, pipeline 5 31, HM Hydraulic Motor, drive HM Hydraulic Motor 10 contrarotations, and by 12 contrarotations of output shaft driven gear, gear 12, by being meshed with the tooth bar 14 being arranged on fixed frame right column 13, is realized the down maneuver of elevator platform 2.The low pressure oil of HM Hydraulic Motor 10 epicoeles is got back to fuel tank 20 by hydraulic fluid port 15, pipeline 7 33, balancing overflow valve 21 in HM Hydraulic Motor 10 oil throughs 19, damping hole 18, HM Hydraulic Motor.
(3), hydraulic power drives the halted state of lifting mechanism: solenoid directional control valve 25 is in meta mode of operation, if oil pump 24 does not quit work, the oil inlet of oil pump 24 is by oil filter 23 oil suction from fuel tank 20, the fluid of oil pump 24 oil outlets is by pipeline 3 29, solenoid directional control valve 25 metas are got back to fuel tank, the gravity of elevator platform 2 engages by gear 12 and tooth bar 14, and change into the load moment on HM Hydraulic Motor 10 output shafts, form high pressure oil at HM Hydraulic Motor 10 epicoeles, due to balancing overflow valve 21, under the combined action of check valve 26, the gravity of elevator platform 2 forms high pressure oil at HM Hydraulic Motor 10 epicoeles and is closed, cannot flow, the gravity of elevator platform 2 is balanced, make elevator platform in halted state.
While driving lifting mechanism as main driving take mechanical power, hydraulic power drives the principle of work of lifting mechanism:
Oil pump 24 is in the state of quitting work, and solenoid directional control valve 25 is in meta mode of operation.
(1), the lifting state of lifting mechanism 2: the brake equipment of lifting motor 2 is in "on" position, remove lifting motor 2 is braked, lifting motor 2 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, gear 12 drives HM Hydraulic Motor 10 to be rotated in the forward with engaging of tooth bar 14, HM Hydraulic Motor 10 epicoeles are drawn fluid by hydraulic fluid port 15, pipeline 6 32, check valve 26, pipeline 4 30, solenoid directional control valve 25 metas in oil through 19, damping hole 18, HM Hydraulic Motor from fuel tank 20, the hydraulic oil of HM Hydraulic Motor 10 cavity of resorptions is got back to fuel tank 20 by hydraulic fluid port under HM Hydraulic Motor 16, pipeline 5 31, solenoid directional control valve 25 metas, and HM Hydraulic Motor 10 is in servo-actuated state.
(2), the decline state of lifting mechanism 2: the brake equipment of lifting motor 3 is in "on" position, remove lifting motor 3 is braked, lifting motor 3 rotates backward, and rotates backward by reductor 5 driven wheels 6, gear 6 is intermeshing with tooth bar 7, realizes the down maneuver of elevator platform 2.When elevator platform 2 declines, gear 12 drives HM Hydraulic Motor 10 contrarotations with engaging of tooth bar 14, HM Hydraulic Motor 10 cavity of resorptions are drawn fluid by hydraulic fluid port under HM Hydraulic Motor 16, pipeline 5 31, solenoid directional control valve 25 metas from fuel tank, the hydraulic oil of HM Hydraulic Motor 10 epicoeles is got back to fuel tank 20 by hydraulic fluid port 15, pipeline 7 33, balancing overflow valve 21 in oil through 19, damping hole 18, HM Hydraulic Motor, and HM Hydraulic Motor 10 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, in power down mode, is braked lifting motor 3, 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 is braked, hydraulic power drives lifting mechanism to play a protective role.Due to the brake equipment et out of order of lifting motor 3, cannot realize lifting motor 3 is braked, the gravity of elevator platform 2 engages by gear 12 and tooth bar 14, and change into the load moment on HM Hydraulic Motor 10 output shafts, form high pressure oil at HM Hydraulic Motor 10 epicoeles, under combined action due to balancing overflow valve 21, check valve 26, the gravity of elevator platform 2 forms high pressure oil at HM Hydraulic Motor 10 epicoeles and is closed, cannot flow, the gravity of elevator platform 2 is balanced, and makes elevator platform 2 in halted state.If balancing overflow valve 21 or also et out of order of check valve 26, the gravity of elevator platform 2 can flow out by being arranged on the damping hole 18 in hydraulic fluid port 15 in HM Hydraulic Motor at HM Hydraulic Motor 10 epicoeles formation high pressure oils, the fluid that can flow out HM Hydraulic Motor 10 epicoeles due to damping hole 18 produces shock damping action, limit the contrarotation speed of HM Hydraulic Motor 10, namely limit cog 12 contrarotation speed of HM Hydraulic Motor 10 output shafts, be equivalent to limit the descending speed of elevator platform 2, 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 cover stroke, avoiding elevator platform 2 fast-descendings to form impacts, produce loss.
While driving lifting mechanism as main driving take hydraulic power, mechanical power drives the state of lifting mechanism:
(1), hydraulic power drives lifting mechanism to promote elevator platform 2 and when 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 drives lifting mechanism while quitting work, lifting motor 3 is in power down mode, the brake equipment of lifting motor 3, in power down mode, to the realization braking of 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 to overlap power driven lifting mechanism, 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, wherein any a set of driving lifting mechanism et out of order, 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 (6)
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 rotation, realize the up-and-down movement of gear in tooth bar vertical direction, realize the lifting action of elevator platform;
Described hydraulic pressure power-driven system comprises hydraulic efficiency pressure system, HM Hydraulic Motor, gear, tooth bar; Described HM Hydraulic Motor is arranged on HM Hydraulic Motor mount pad, and described HM Hydraulic Motor mount pad is fixed on elevator platform, on the output shaft of described HM Hydraulic Motor, gear is installed; Described tooth bar is arranged on fixed frame right column, and intermeshing with gear; Described HM Hydraulic Motor has in HM Hydraulic Motor hydraulic fluid port under hydraulic fluid port and HM Hydraulic Motor; In described HM Hydraulic Motor, in hydraulic fluid port, screw plug is installed, on screw plug, offers damping hole; Right side at screw plug also has oil through; 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; In described HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline six of hydraulic efficiency pressure system, and under HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline five of hydraulic efficiency pressure system; When hydraulic efficiency pressure system by pipeline six and HM Hydraulic Motor on hydraulic fluid port while providing high pressure oil to HM Hydraulic Motor epicoele, can drive HM Hydraulic Motor to be rotated in the forward, and be rotated in the forward by output shaft driven gear, gear, by being meshed with the tooth bar being arranged on fixed frame right column, is realized the enhancing action of elevator platform; When hydraulic efficiency pressure system by pipeline five and HM Hydraulic Motor under hydraulic fluid port while providing high pressure oil to HM Hydraulic Motor cavity of resorption, can drive HM Hydraulic Motor contrarotation, and by the contrarotation of output shaft driven gear, gear, by being meshed with the tooth bar being arranged on fixed frame right column, is realized the down maneuver of elevator platform.
2. a kind of 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 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. a kind of Dual Drive lifting mechanism according to claim 1, is characterized in that: between described fixed frame and elevator platform, guide piece is set.
4. a kind of Dual Drive lifting mechanism according to claim 1, is characterized in that: described lifting motor is common electric machine or servomotor.
5. a kind of 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.
6. a kind of 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 |
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| CN201410043810.5A CN103787227B (en) | 2014-01-29 | 2014-01-29 | A kind of Dual Drive lifting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410043810.5A CN103787227B (en) | 2014-01-29 | 2014-01-29 | A kind of Dual Drive lifting mechanism |
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| CN103787227A true CN103787227A (en) | 2014-05-14 |
| CN103787227B CN103787227B (en) | 2016-01-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692515A (en) * | 2016-04-26 | 2016-06-22 | 邹平县供电公司 | Anti-falling electric power construction lifter |
| CN107088133A (en) * | 2017-06-15 | 2017-08-25 | 孙永 | A kind of medical device support device |
| CN112727198A (en) * | 2020-12-30 | 2021-04-30 | 安徽春华智能科技有限公司 | Lifting device of plane moving type parking equipment |
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| CN201419992Y (en) * | 2009-04-15 | 2010-03-10 | 北京中冶设备研究设计总院有限公司 | Stainless steel lifter |
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| CN1041321A (en) * | 1988-09-29 | 1990-04-18 | 李万浩 | elevator |
| US5915882A (en) * | 1997-06-26 | 1999-06-29 | Letourneau, Inc. | Jack-up platform locking apparatus and method |
| CN2617866Y (en) * | 2003-02-28 | 2004-05-26 | 蔺志刚 | Hiding garage |
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| CN105692515A (en) * | 2016-04-26 | 2016-06-22 | 邹平县供电公司 | Anti-falling electric power construction lifter |
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| CN112727198A (en) * | 2020-12-30 | 2021-04-30 | 安徽春华智能科技有限公司 | Lifting device of plane moving type parking equipment |
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| CN103787227B (en) | 2016-01-06 |
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