CN103754790B - A kind of Dual Drive lifting mechanism - Google Patents
A kind of Dual Drive lifting mechanism Download PDFInfo
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- CN103754790B CN103754790B CN201410043127.1A CN201410043127A CN103754790B CN 103754790 B CN103754790 B CN 103754790B CN 201410043127 A CN201410043127 A CN 201410043127A CN 103754790 B CN103754790 B CN 103754790B
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Abstract
The invention discloses 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, 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 main driving when carrying out work, and a set of driving lifting mechanism will automatically as safety guard in addition; lifting mechanism is protected, improves reliability and the safety of lifting mechanism work.
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 field of electromechanical technology.
Background technology
At present, lifting mechanism is widely used in the fields such as lifting, loading, transport, 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, driving the positive and negative rotation of reel, realizing the folding and unfolding of reel to cable wire, completing 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, more safety precautions must be had on the one hand, prevent from promoting falling fast of thing, damage and promote thing; On the other hand must trouble-shooting rapidly, or the second cover lifting mechanism can be started, guarantee lifting mechanism can normal and continuous operation.
For certain some more special occasion, for ensureing that lifting mechanism can normal and continuous operation, and improve reliability and the safety of lifting mechanism work, the present invention 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 comprises 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 rotary motion of described lifting motor passes to gear after can being slowed down by reductor, and driven wheel rotates; Described tooth bar is arranged on the fixed frame left column of fixed frame, and engage each other with gear, by being arranged on the rotary motion of the lifting motor on elevator platform and being rotated by reductor deceleration, driven wheel, realize the up-and-down movement of gear in tooth vertical direction, realize the lifting action of elevator platform;
Described hydraulic power jacking 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; The output shaft of described HM Hydraulic Motor is provided with gear; Described tooth bar is arranged on fixed frame right column, and engages each other with gear; Described hydraulic efficiency pressure system comprises fuel tank, oil filter, oil pump, balancing overflow valve, by pass valve, solenoid directional control valve, hydraulic control one-way valve and some pipelines; Described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, pipeline one is set between described fuel tank and oil filter, pipeline two is set between described oil filter and oil pump, pipeline three is set between described oil pump and solenoid directional control valve, described fuel tank, by connecting by pass valve connecting pipeline three, arranges pipeline four between described solenoid directional control valve and hydraulic control one-way valve; Described HM Hydraulic Motor to have in HM Hydraulic Motor hydraulic fluid port under hydraulic fluid port and HM Hydraulic Motor; Described HM Hydraulic Motor is provided with screw plug in hydraulic fluid port, described screw plug offers damping hole, also have oil through on the right side of screw plug; In described HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline seven of hydraulic efficiency pressure system, and under described HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline five of hydraulic efficiency pressure system; Pipeline six is set between described hydraulic control one-way valve and pipeline five, between described balancing overflow valve and pipeline seven, pipeline eight is set; When hydraulic efficiency pressure system provides high pressure oil by hydraulic fluid port in pipeline seven and HM Hydraulic Motor to HM Hydraulic Motor epicoele, HM Hydraulic Motor can be driven to rotate forward, and rotated forward by output shaft driven gear, described gear, by being meshed with the tooth bar be arranged on fixed frame right column, realizes the enhancing action of elevator platform; When hydraulic fluid port under hydraulic efficiency pressure system is by pipeline five and HM Hydraulic Motor provides high pressure oil to HM Hydraulic Motor cavity of resorption, HM Hydraulic Motor contrarotation can be driven, and by the contrarotation of output shaft driven gear, gear, by being meshed with the tooth bar be arranged on fixed frame right column, realizes the down maneuver of elevator platform.
The brake equipment of above-mentioned lifting motor can realize braking by dead electricity to lifting motor, and by 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: in lifting motor no power state, the brake equipment of lifting motor can realize working independently, and namely realizes braking by dead electricity to lifting motor, by electricly realizing brake off to lifting motor;
Co-ordination pattern: the brake equipment of lifting motor and lifting motor is energized simultaneously, brake equipment brake off, lifting motor rotates; The brake equipment dead electricity simultaneously of lifting motor and lifting motor, lifting motor stall, brake equipment realizes 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 in above-mentioned hydraulic efficiency pressure system and hydraulic control one-way valve play equilibrium activity, can 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 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 when carrying out work; a set of driving lifting mechanism automatically as safety guard, will be protected lifting mechanism, improves reliability and the safety of lifting mechanism work in addition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
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 comprises 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 realize braking by dead electricity to lifting motor 3, by 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: in lifting motor 3 no power state, the brake equipment of lifting motor 3 can realize working independently, namely realizes braking by dead electricity to lifting motor 3, by electricly realizing brake off to lifting motor 3.Co-ordination pattern: the brake equipment of lifting motor 3 and lifting motor 3 is energized simultaneously, brake equipment brake off, lifting motor 3 rotates; The brake equipment dead electricity simultaneously of lifting motor 3 and lifting motor 3, lifting motor 3 stall, brake equipment realizes 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 the rotary motion of lifting motor 3 can by passing to gear 6 after reductor 5 deceleration, and driven wheel 6 rotates.Tooth bar 7 is arranged on the fixed frame left column 8 of fixed frame 1, and engages each other with gear 6.By be arranged on the rotary motion of the lifting motor 3 on elevator platform 2 and slowed down by reductor 5, driven wheel 6 rotates, realize the up-and-down movement of gear 6 in tooth bar 7 vertical direction, realize the lifting action of elevator platform 2.
Hydraulic power jacking 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.The output shaft of HM Hydraulic Motor 10 is provided with gear 12.Tooth bar 14 is arranged on fixed frame right column 13, and engages each other with gear 12.HM Hydraulic Motor 10 to have in HM Hydraulic Motor hydraulic fluid port 16 under hydraulic fluid port 15 and HM Hydraulic Motor.HM Hydraulic Motor is provided with screw plug 17 in hydraulic fluid port 15, screw plug 17 offers damping hole 18.Oil through 19 is also had 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, hydraulic control one-way valve 26 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, pipeline 8 34, pipeline 1 is set between fuel tank 20 and oil filter 23, pipeline 2 28 is set between oil filter 23 and oil pump 24, pipeline 3 29 is set between oil pump 24 and solenoid directional control valve 25, fuel tank 20, by connecting by pass valve 22 connecting pipeline 3 29, arranges pipeline 4 30 between solenoid directional control valve 25 and hydraulic control one-way valve 26.In HM Hydraulic Motor, hydraulic fluid port 15 is connected with the pipeline 7 33 of hydraulic efficiency pressure system, under HM Hydraulic Motor, hydraulic fluid port 16 is connected with the pipeline 5 31 of hydraulic efficiency pressure system, pipeline 6 32 is set between hydraulic control one-way valve 26 and pipeline 5 31, pipeline 8 34 is set between balancing overflow valve 21 and pipeline 7 33.When hydraulic efficiency pressure system provides high pressure oil by hydraulic fluid port 15 in pipeline 7 33 and HM Hydraulic Motor to HM Hydraulic Motor epicoele, HM Hydraulic Motor 10 can be driven to rotate forward, and rotated forward by output shaft driven gear 12, gear 12, by being meshed with the tooth bar 14 be arranged on fixed frame right column 13, realizes the enhancing action of elevator platform 2.When hydraulic fluid port 16 under hydraulic efficiency pressure system is by pipeline 5 31 and HM Hydraulic Motor provides high pressure oil to HM Hydraulic Motor cavity of resorption, HM Hydraulic Motor 10 contrarotation can be driven, and by output shaft driven gear 12 contrarotation, gear 12, by being meshed with the tooth bar 14 be arranged on fixed frame right column 13, realizes the down maneuver of elevator platform 2.
Between fixed frame 1 and elevator platform 2, can guide piece be set; Lifting motor 3 can be common electric machine, also can be servomotor; Balancing overflow valve 21 in hydraulic efficiency pressure system and hydraulic control one-way valve 26 play equilibrium activity, can the gravity of 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), by the lifting motor 3 of drive installation on elevator platform 2 produce rotary motion, and slowed down by reductor 5, driven wheel 6 rotates, realize the up-and-down movement of gear 6 in tooth bar 7 vertical direction, realize the lifting action of elevator platform 2.By changing the rotary motion direction of lifting motor 3, lifting and the down maneuver of elevator platform 2 can be realized respectively.When lifting motor 3 works, the brake equipment of lifting motor 3 is in "on" position, removes and brakes lifting motor 3.
(2), lifting motor 3 is when quitting work, and the brake equipment of lifting motor 3 is in off-position, realizes 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 outlet is by pipeline 3 29, the right position of solenoid directional control valve 25, pipeline 4 30, hydraulic control one-way valve 26, pipeline 7 33, hydraulic fluid port 15 in HM Hydraulic Motor, damping hole 18, oil through 19 enters HM Hydraulic Motor 10 epicoele, HM Hydraulic Motor 10 is driven to rotate forward, and rotated forward by output shaft driven gear 12, gear 12 is by being meshed with the tooth bar 14 be 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 resorption then gets 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 outlet enters the control port of hydraulic control one-way valve 26 on the one hand by pipeline 29, the left position of solenoid directional control valve 25, pipeline 32, hydraulic control one-way valve 26 is oppositely opened; HM Hydraulic Motor 10 cavity of resorption is entered on the other hand 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 contrarotation, and by output shaft driven gear 12 contrarotation, gear 12, by being meshed with the tooth bar 14 be arranged on fixed frame right column 13, realizes the down maneuver of elevator platform 2.The low pressure oil of HM Hydraulic Motor 10 epicoele then gets back to fuel tank 20 by hydraulic fluid port 15, pipeline 7 33, hydraulic control one-way valve 26, pipeline 4 30, the left position of solenoid directional control valve 25 in HM Hydraulic Motor 10 oil through 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 outlet is by pipeline 3 29, solenoid directional control valve 25 meta gets back to fuel tank, the gravity of elevator platform 2 is engaged by gear 12 and tooth bar 14, and the load moment changed on HM Hydraulic Motor 10 output shaft, high pressure oil is formed at HM Hydraulic Motor 10 epicoele, due to balancing overflow valve 21, under the combined action of hydraulic control one-way valve 26, the gravity of elevator platform 2 forms high pressure oil at HM Hydraulic Motor 10 epicoele and is closed, cannot flow, the gravity of elevator platform 2 is balanced, elevator platform is made to be in halted state.
When driving lifting mechanism for main driving with 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 and lifting motor 2 is braked, lifting motor 2 rotates forward, rotated forward by reductor 5 driven wheel 6, gear 6 and tooth bar 7 engage each other, overcome the gravity of elevator platform 2, realize the enhancing action of elevator platform 2.While elevator platform 2 promotes, gear 12 drives HM Hydraulic Motor 10 to rotate forward with engaging of tooth bar 14, HM Hydraulic Motor 10 epicoele draws fluid by hydraulic fluid port 15, pipeline 7 33, hydraulic control one-way valve 26, pipeline 4 30, solenoid directional control valve 25 meta in oil through 19, damping hole 18, HM Hydraulic Motor from fuel tank 20, the hydraulic oil of HM Hydraulic Motor 10 cavity of resorption then gets back to fuel tank 20 by hydraulic fluid port under HM Hydraulic Motor 16, pipeline 5 31, solenoid directional control valve 25 meta, 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 and brake lifting motor 3, lifting motor 3 rotates backward, and is rotated backward by reductor 5 driven wheel 6, gear 6 and tooth bar 7 engage each other, and realize the down maneuver of elevator platform 2.While elevator platform 2 declines, gear 12 drives HM Hydraulic Motor 10 contrarotation with engaging of tooth bar 14, HM Hydraulic Motor 10 cavity of resorption draws fluid by hydraulic fluid port under HM Hydraulic Motor 16, pipeline 5 31, solenoid directional control valve 25 meta from fuel tank, the hydraulic oil of HM Hydraulic Motor 10 epicoele then gets back to fuel tank 20 by hydraulic fluid port 15, pipeline 8 34, 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 is in power down mode, brakes lifting motor 3, gear 6 stall, elevator platform 2 stop motion.Once the brake equipment et out of order of lifting motor 3, cannot realize braking lifting motor 3, 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 braking lifting motor 3, the gravity of elevator platform 2 is engaged by gear 12 and tooth bar 14, and the load moment changed on HM Hydraulic Motor 10 output shaft, high pressure oil is formed at HM Hydraulic Motor 10 epicoele, under combined action due to balancing overflow valve 21, hydraulic control one-way valve 26, the gravity of elevator platform 2 forms high pressure oil at HM Hydraulic Motor 10 epicoele and is closed, cannot flow, the gravity of elevator platform 2 is balanced, and makes elevator platform 2 be in halted state.If balancing overflow valve 21 or hydraulic control one-way valve 26 also et out of order, then the gravity of elevator platform 2 can be flowed out by the damping hole 18 be arranged in HM Hydraulic Motor in hydraulic fluid port 15 at HM Hydraulic Motor 10 epicoele formation high pressure oil, the fluid that can flow out HM Hydraulic Motor 10 epicoele due to damping hole 18 produces shock damping action, limit the contrarotation speed of HM Hydraulic Motor 10, namely limit HM Hydraulic Motor 10 output shaft cog 12 contrarotation speed, be equivalent to the descending speed limiting elevator platform 2, even if ensure that elevator platform 2 is nonserviceabled, also can only move down according to very low speed, until elevator platform 2 kiss the earth, or cover stroke, avoid elevator platform 2 to decline fast and form impact, produce loss.
When driving lifting mechanism for main driving with hydraulic power, mechanical power drives the state of lifting mechanism:
(1), hydraulic power drive lifting mechanism elevator platform 2 is promoted and down maneuver time, lifting motor 3 is in power down mode, and the brake equipment of lifting motor 3 is in "on" position, removes the braking to lifting motor 3, and lifting motor 3 is in servo-actuated state.
(2), hydraulic power drives lifting mechanism when quitting work, and lifting motor 3 is in power down mode, and the brake equipment of lifting motor 3 is in power down mode, brakes, play a protective role to elevator platform 2 to the realization of lifting motor 3.
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 when carrying out work; a set of driving lifting mechanism automatically as safety guard, will be protected lifting mechanism, improves reliability and the safety of lifting mechanism work in addition.
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 comprises 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 rotary motion of described lifting motor passes to gear after being slowed down by reductor, and driven wheel rotates; Described tooth bar is arranged on the fixed frame left column of fixed frame, and engage each other with gear, by being arranged on the rotary motion of the lifting motor on elevator platform and being rotated by reductor deceleration, driven wheel, realize the up-and-down movement of gear in tooth vertical direction, realize the lifting action of elevator platform;
Described hydraulic power jacking 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; The output shaft of described HM Hydraulic Motor is provided with gear; Described tooth bar is arranged on fixed frame right column, and engages each other with gear; Described hydraulic efficiency pressure system comprises fuel tank, oil filter, oil pump, balancing overflow valve, by pass valve, solenoid directional control valve, hydraulic control one-way valve and some pipelines; Described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, pipeline one is set between described fuel tank and oil filter, pipeline two is set between described oil filter and oil pump, pipeline three is set between described oil pump and electromagnetic valve, described fuel tank, by connecting by pass valve connecting pipeline three, arranges pipeline four between described solenoid directional control valve and hydraulic control one-way valve; Described HM Hydraulic Motor to have in HM Hydraulic Motor hydraulic fluid port under hydraulic fluid port and HM Hydraulic Motor; Described HM Hydraulic Motor is provided with screw plug in hydraulic fluid port, described screw plug offers damping hole, also have oil through on the right side of screw plug; In described HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline seven of hydraulic efficiency pressure system, under described HM Hydraulic Motor, hydraulic fluid port is connected with the pipeline five of hydraulic efficiency pressure system, pipeline six is set between described hydraulic control one-way valve and pipeline five, between described balancing overflow valve and pipeline seven, pipeline eight is set; When hydraulic efficiency pressure system provides high pressure oil by hydraulic fluid port in pipeline seven and HM Hydraulic Motor to HM Hydraulic Motor epicoele, driving HM Hydraulic Motor rotates forward, and rotated forward by output shaft driven gear, described gear, by being meshed with the tooth bar be arranged on fixed frame right column, realizes the enhancing action of elevator platform; When hydraulic fluid port under hydraulic efficiency pressure system is by pipeline five and HM Hydraulic Motor provides high pressure oil to HM Hydraulic Motor cavity of resorption, drive HM Hydraulic Motor contrarotation, and by the contrarotation of output shaft driven gear, gear, by being meshed with the tooth bar be arranged on fixed frame right column, realizes 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 realizes braking by dead electricity to lifting motor, by 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: in lifting motor no power state, the brake equipment of lifting motor realizes working independently, and namely realizes braking by dead electricity to lifting motor, by electricly realizing brake off to lifting motor;
Co-ordination pattern: the brake equipment of lifting motor and lifting motor is energized simultaneously, brake equipment brake off, lifting motor rotates; The brake equipment dead electricity simultaneously of lifting motor and lifting motor, lifting motor stall, brake equipment realizes braking to lifting motor.
3. a kind of Dual Drive lifting mechanism according to claim 1, is characterized in that: arrange guide piece between described fixed frame and elevator platform.
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: the balancing overflow valve in described hydraulic efficiency pressure system and hydraulic control one-way valve play equilibrium activity, the gravity of 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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| CN201410043127.1A CN103754790B (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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| CN201410043127.1A CN103754790B (en) | 2014-01-29 | 2014-01-29 | A kind of Dual Drive lifting mechanism |
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| CN103754790A CN103754790A (en) | 2014-04-30 |
| CN103754790B true CN103754790B (en) | 2016-03-16 |
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| CN201410043127.1A Expired - Fee Related CN103754790B (en) | 2014-01-29 | 2014-01-29 | A kind of Dual Drive lifting mechanism |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106073190B (en) * | 2016-08-03 | 2018-07-13 | 眉山市政鑫科技有限公司 | Easy assembling glass electric hydraulic lifting chafing dinning table |
| CN110386568B (en) * | 2018-01-25 | 2020-09-04 | 上海速锐信息技术有限公司 | Tightness-adjustable gear rack elevator |
| CN112551414B (en) * | 2020-12-24 | 2022-03-25 | 湖南恒安生活用纸有限公司 | Refill lifting mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547964A1 (en) * | 2003-10-27 | 2005-06-29 | Vima Impianti S.r.l. | A lifting apparatus |
| CN101367486A (en) * | 2008-09-12 | 2009-02-18 | 合肥市华林模具有限公司 | Lifting mechanism |
| CN101402440A (en) * | 2008-07-25 | 2009-04-08 | 白天海 | Mobile hoistable platform and labor-saving apparatus |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070056804A1 (en) * | 2003-10-01 | 2007-03-15 | Frank Thielow | Lifting device especially a lift or a lifting platform |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547964A1 (en) * | 2003-10-27 | 2005-06-29 | Vima Impianti S.r.l. | A lifting apparatus |
| CN101402440A (en) * | 2008-07-25 | 2009-04-08 | 白天海 | Mobile hoistable platform and labor-saving apparatus |
| CN101367486A (en) * | 2008-09-12 | 2009-02-18 | 合肥市华林模具有限公司 | Lifting mechanism |
| 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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