CN103771235A - Dual-drive lifting mechanism - Google Patents
Dual-drive lifting mechanism Download PDFInfo
- Publication number
- CN103771235A CN103771235A CN201410043469.3A CN201410043469A CN103771235A CN 103771235 A CN103771235 A CN 103771235A CN 201410043469 A CN201410043469 A CN 201410043469A CN 103771235 A CN103771235 A CN 103771235A
- Authority
- CN
- China
- Prior art keywords
- oil
- oil cylinder
- lifting motor
- lifting mechanism
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a dual-drive lifting mechanism which comprises two sets of power-driven lifting mechanisms, namely a mechanical power-driven lifting mechanism and a hydraulic power-driven lifting mechanism, wherein the two sets of power-driven lifting mechanisms can work independently, and also can work simultaneously. According to the dual-drive lifting mechanism provided by the invention, in case of failure of one set of drive lifting mechanism, the other set of drive lifting mechanism can enter a main drive state to achieve continuous work of the dual drive lifting mechanism. Moreover, in the dual-drive lifting mechanism, one set of drive lifting mechanism serves as main drive to work, and the other set of drive lifting mechanism can serve as a safety protection device automatically, so that the lifting mechanism is protected and the work reliability and security of the lifting mechanism are improved.
Description
Technical field
The present invention relates to a kind of Dual Drive lifting mechanism, be specifically related to a kind of mechanical-hydraulic Dual Drive lifting mechanism, belong to electric and mechanical & electrical technology field.
Background technology
At present, lifting mechanism is widely used in the fields such as lifting, loading, transportation, and common lifting mechanism has driving, elevator etc.Mainly contain the compositions such as lifting motor, reductor, cable wire, reel.Its basic functional principle is: by controlling the hand of rotation of lifting motor, drive the positive and negative rotation of reel, realize the folding and unfolding of reel to cable wire, complete 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 under hydraulic efficiency pressure system, oil cylinder, oil cylinder lower union joint, oil cylinder mount pad, upper pin on mount pad, lower bearing pin, described 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 lower bearing pin and oil cylinder, described hydraulic efficiency pressure system comprises fuel tank, oil filter, oil pump, balancing overflow valve, by pass valve, solenoid directional control valve, check valve and some pipelines, and described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, described oil cylinder comprises cylinder tube, upper end cover, piston, piston rod, bottom end cover, piston and piston rod interconnect, in described oil cylinder, there is cylinder upper cavity oil and oil cylinder cavity of resorption, on described upper end cover, offer oil through one, hydraulic fluid port on oil through two and oil cylinder, described cylinder upper cavity oil is by the oil through one on upper end cover, oil through two, on oil cylinder, the pipeline six of hydraulic fluid port and hydraulic efficiency pressure system is connected, on described bottom end cover, offer oil through three, hydraulic fluid port under oil through four and oil cylinder, the upper end of described oil through three is provided with plug, on described plug, offer plug mesopore, the inside of described oil through three is provided with check valve container cavity, in described check valve container cavity, check valve is installed, check valve can move up and down in its container cavity, the inwall of described check valve and its container cavity forms spool annular chamber, the inside of described check valve offers spool mesopore, on the sidewall of described check valve, offer some spool side openings, the lower end of described check valve has the spool conical surface, between plug and check valve, spring is installed, the spool conical surface of described spring handle check valve lower end is pressed on valve seat, the lower end of described check valve also offers damping hole, fluid in described oil cylinder cavity of resorption can pass through plug mesopore while discharge, spool mesopore, damping hole, oil through three, oil through four, under oil cylinder, the pipeline of hydraulic fluid port and hydraulic efficiency pressure system is connected, the pressure oil of described hydraulic efficiency pressure system can pass through hydraulic fluid port, oil through four, oil through three under pipeline eight, oil cylinder, arrive check valve lower end, overcome the application force of spring, the spool conical surface is pushed away to valve seat, and pressure oil enters in oil cylinder cavity of resorption by spool annular chamber, spool side opening, spool mesopore, plug mesopore again, described hydraulic efficiency pressure system provides high-voltage oil liquid to oil cylinder, enter respectively cylinder upper cavity oil and the oil cylinder cavity of resorption of oil cylinder, can driven plunger drive piston rod, and by mount pad and elevator platform up-and-down movement under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, realize the lifting action of elevator platform.
The brake equipment of above-mentioned lifting motor can be realized braking to lifting motor by dead electricity, and by must electricly realizing brake off to lifting motor, the brake equipment of 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.
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, and driven wheel 6 rotates.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 lifting motor 3 on elevator platform 2 rotatablely move 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.
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 10 on upper pin 11 and oil cylinder.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 17 under lower bearing pin 18 and oil cylinder.Hydraulic efficiency pressure system comprises fuel tank 29, oil filter 33, oil pump 34, balancing overflow valve 30 and by pass valve 32, solenoid directional control valve 35, check valve 36 and some pipelines.Pipeline is pipeline 1, pipeline 2 37, pipeline 3 38, pipeline 4 39, pipeline 5 40, pipeline 6 41, pipeline 7 42, pipeline 8 43.Oil cylinder comprises cylinder tube, upper end cover 12, piston 13, piston rod 14, bottom end cover 15, piston 13 and piston rod 14 interconnect, in oil cylinder, there is cylinder upper cavity oil 27 and oil cylinder cavity of resorption 28, on upper end cover 12, offer oil through 1, hydraulic fluid port 26 on oil through 2 25 and oil cylinder, cylinder upper cavity oil 27 is by the oil through 1 on upper end cover 12, oil through 2 25, on oil cylinder, the pipeline 6 41 of hydraulic fluid port 26 and hydraulic efficiency pressure system is connected, on bottom end cover 15, offer oil through 3 21, hydraulic fluid port 23 under oil through 4 22 and oil cylinder, the upper end of oil through 3 21 is provided with plug 19, on plug 19, offer plug mesopore 19-1, the inside of oil through 3 21 is provided with check valve container cavity, check valve 20 is installed in check valve container cavity, check valve 20 can move up and down in its container cavity, check valve 20 forms spool annular chamber 20-2 with the inwall of its container cavity, the inside of check valve 20 offers spool mesopore 20-1, on the sidewall of check valve 20, offer some spool side opening 20-3, the lower end of check valve 20 has spool conical surface 20-4, between plug 19 and check valve 20, spring 19-2 is installed, spring 19-2 is pressed in the spool conical surface 20-4 of check valve 20 lower ends on valve seat 20-5, the lower end of check valve 20 also offers damping hole 20-6, fluid in oil cylinder cavity of resorption 28 can pass through plug mesopore 19-1 while discharge, spool mesopore 20-1, damping hole 20-6, oil through 3 21, oil through 4 22, under oil cylinder, the pipeline 8 43 of hydraulic fluid port 23 and hydraulic efficiency pressure system is connected, the pressure oil of hydraulic efficiency pressure system can pass through hydraulic fluid port 23, oil through 4 22, oil through 3 21 under pipeline 8 43, oil cylinder, arrive check valve 20 lower ends, overcome the application force of spring 19-2, spool conical surface 20-4 is pushed away to valve seat 20-5, and pressure oil enters in oil cylinder cavity of resorption 28 by spool annular chamber 20-2, spool side opening 20-3, spool mesopore 20-1, plug mesopore 19-1 again.Hydraulic efficiency pressure system provides high-voltage oil liquid to oil cylinder, enter respectively cylinder upper cavity oil 27 and the oil cylinder cavity of resorption 28 of oil cylinder, can driven plunger 13 drive piston rod 14, and by mount pad 17 and elevator platform 2 up-and-down movements under piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, oil cylinder, realize the lifting action of elevator platform 2.
Between fixed frame 1 and elevator platform 2, guide piece can be set; Lifting motor 3 can be common electric machine, can be also servomotor; Balancing overflow valve 30 and check valve 36 in hydraulic efficiency pressure system play equilibrium activity, gravity that can balance lifting frame.The Median Function of the solenoid directional control valve 35 in hydraulic efficiency pressure system is " H " type.
A kind of Dual Drive lifting mechanism provided by the invention, the mechanical power that it comprises drives lifting mechanism and hydraulic power to drive lifting mechanism can work alone respectively, also can work simultaneously.
Mechanical power drives the principle that works alone of lifting mechanism:
(1) lifting motor, 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 35 is in right position mode of operation, and the oil inlet of oil pump 34 is by oil filter 33 oil suction from fuel tank 29, and the high pressure oil of oil pump 34 oil outlets is by pipeline 4 39, the right position of solenoid directional control valve 35, pipeline 5 40, check valve 36, pipeline 7 42, pipeline 8 43, hydraulic fluid port 23 under oil cylinder, oil through 4 22, oil through 3 21, arrives check valve 20 lower ends, overcomes the application force of spring 19-2, and spool conical surface 20-4 is pushed away to valve seat 20-5, and pressure oil is again by spool annular chamber 20-2, spool side opening 20-3, spool mesopore 20-1, plug mesopore 19-1 enters oil cylinder cavity of resorption 28, and oil pressure acts on piston 13, forms hoisting force, by piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, mount pad 17 under oil cylinder, overcomes the gravity of elevator platform 2, realizes the enhancing action to elevator platform 2, and the hydraulic oil of cylinder upper cavity oil 27 is by oil through 1, oil through 2 25, hydraulic fluid port 26 on oil cylinder, pipeline 6 41, fuel tank 29 is got back in the right position of solenoid directional control valve 35.
(2), hydraulic power drives the decline state of lifting mechanism: solenoid directional control valve 35 is in left position mode of operation, the oil inlet of oil pump 34 is by oil filter 33 oil suction from fuel tank 29, the high pressure oil of oil pump 34 oil outlets is by pipeline 4 39, the left position of solenoid directional control valve 35, pipeline 6 41, hydraulic fluid port 26 on oil cylinder, oil through 2 25, oil through 1 enters cylinder upper cavity oil 27, oil pressure acts on piston 13, produce downward thrust, and by piston rod 14, oil cylinder lower union joint 16, lower bearing pin 18, mount pad 17 under oil cylinder, with together with the gravity of elevator platform 2, overcome the antagonistic force that oil cylinder cavity of resorption 28 oil pressure produce, realize the down maneuver to elevator platform 2, the hydraulic oil of oil cylinder cavity of resorption 28 is by plug mesopore 19-1, spool mesopore 20-1, damping hole 20-6, oil through 3 21, oil through 4 22, hydraulic fluid port 23 under oil cylinder, pipeline 8 43, pipeline 1, balancing overflow valve 30 is got back to fuel tank 29.
(3), hydraulic power drives the halted state of lifting mechanism: solenoid directional control valve 35 is in meta mode of operation, if oil pump 34 does not quit work, the oil inlet of oil pump 34 is by oil filter 33 oil suction from fuel tank 29, the fluid of oil pump 34 oil outlets is by pipeline 4 39, solenoid directional control valve 35 metas are got back to fuel tank 29, the gravity of elevator platform is by mount pad under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14 acts on piston 13, the fluid of oil cylinder cavity of resorption 28 is at balancing overflow valve 30, under the combined action of check valve 36, be closed, cannot flow, oil cylinder cavity of resorption 28 forms corresponding oil pressure, the gravity of balance lifting frame 2, make elevator platform 2 in halted state.
While driving lifting mechanism as main driving take mechanical power, hydraulic power drives the principle of work of lifting mechanism:
Oil pump 34 is in the state of quitting work, and solenoid directional control valve 35 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, remove lifting motor 3 is braked, 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 drives piston 13 upward movements, now, oil cylinder cavity of resorption 28 is by plug mesopore 19-1, spool mesopore 20-1, spool side opening 20-3, spool annular chamber 20-2, check valve 20 upper ends form negative pressure, overcome the application force of spring 19-2, spool conical surface 20-4 is pushed away to valve seat 20-5, again through oil through 3 21, oil through 4 22, hydraulic fluid port 23 under oil cylinder, pipeline 8 43, pipeline 7 42, check valve 36, pipeline 5 40, solenoid directional control valve 35 metas are drawn fluid from fuel tank 29, the hydraulic oil of cylinder upper cavity oil 27 is by oil through 1, oil through 2 25, hydraulic fluid port 26 on oil cylinder, pipeline 6 41, solenoid directional control valve 35 metas are got back to fuel tank 29, 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, 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, drive piston 13 to move downward by mount pad under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, the hydraulic oil of oil cylinder cavity of resorption 28 is got back to fuel tank 29 by hydraulic fluid port 23, pipeline 8 43, pipeline 1, balancing overflow valve 30, pipeline under plug mesopore 19-1, spool mesopore 20-1, damping hole 20-6, oil through 3 21, oil through 4 22, oil cylinder; Cylinder upper cavity oil 27 is drawn fluid by hydraulic fluid port 26, pipeline 6 41, solenoid directional control valve 35 metas on oil through 1, oil through 2 25, oil cylinder from fuel tank 29, and oil cylinder is in servo-actuated state.
(3), the halted state of lifting mechanism 2: lifting motor 3 is in power down mode, and the brake equipment of lifting motor 3, 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 acts on piston 13 by mount pad under oil cylinder 17, lower bearing pin 18, oil cylinder lower union joint 16, piston rod 14, the fluid of oil cylinder cavity of resorption 28 is under the combined action of balancing overflow valve 30, check valve 36, be closed, cannot flow, oil cylinder cavity of resorption 28 forms corresponding oil pressure, the gravity of balance lifting frame 2, makes elevator platform 2 in halted state.If balancing overflow valve 30 or also et out of order of check valve 36, elevator platform 2 moves down under the effect of gravity, the fluid of oil cylinder cavity of resorption 28 flows out by the damping hole 20-6 of check valve 20 lower ends, the fluid that can flow out oil cylinder cavity of resorption 28 due to damping hole 20-6 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.
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 under hydraulic efficiency pressure system, oil cylinder, oil cylinder lower union joint, oil cylinder mount pad, upper pin on mount pad, lower bearing pin, described 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 lower bearing pin and oil cylinder, described hydraulic efficiency pressure system comprises fuel tank, oil filter, oil pump, balancing overflow valve, by pass valve, solenoid directional control valve, check valve and some pipelines, and described pipeline is pipeline one, pipeline two, pipeline three, pipeline four, pipeline five, pipeline six, pipeline seven, pipeline eight, described oil cylinder comprises cylinder tube, upper end cover, piston, piston rod, bottom end cover, piston and piston rod interconnect, in described oil cylinder, there is cylinder upper cavity oil and oil cylinder cavity of resorption, on described upper end cover, offer oil through one, hydraulic fluid port on oil through two and oil cylinder, described cylinder upper cavity oil is by the oil through one on upper end cover, oil through two, on oil cylinder, the pipeline six of hydraulic fluid port and hydraulic efficiency pressure system is connected, on described bottom end cover, offer oil through three, hydraulic fluid port under oil through four and oil cylinder, the upper end of described oil through three is provided with plug, on described plug, offer plug mesopore, the inside of described oil through three is provided with check valve container cavity, in described check valve container cavity, check valve is installed, check valve can move up and down in its container cavity, the inwall of described check valve and its container cavity forms spool annular chamber, the inside of described check valve offers spool mesopore, on the sidewall of described check valve, offer some spool side openings, the lower end of described check valve has the spool conical surface, between plug and check valve, spring is installed, the spool conical surface of described spring handle check valve lower end is pressed on valve seat, the lower end of described check valve also offers damping hole, fluid in described oil cylinder cavity of resorption can pass through plug mesopore while discharge, spool mesopore, damping hole, oil through three, oil through four, under oil cylinder, the pipeline of hydraulic fluid port and hydraulic efficiency pressure system is connected, the pressure oil of described hydraulic efficiency pressure system can pass through hydraulic fluid port, oil through four, oil through three under pipeline eight, oil cylinder, arrive check valve lower end, overcome the application force of spring, the spool conical surface is pushed away to valve seat, and pressure oil enters in oil cylinder cavity of resorption by spool annular chamber, spool side opening, spool mesopore, plug mesopore again, described hydraulic efficiency pressure system provides high-voltage oil liquid to oil cylinder, enter respectively cylinder upper cavity oil and the oil cylinder cavity of resorption of oil cylinder, can driven plunger drive piston rod, and by mount pad and elevator platform up-and-down movement under piston rod, oil cylinder lower union joint, lower bearing pin, oil cylinder, realize the lifting action of elevator platform.
2. Dual Drive lifting mechanism according to claim 1, it is characterized in that: the brake equipment of described lifting motor can be realized braking to lifting motor by dead electricity, by must electricly realizing brake off to lifting motor, the brake equipment of 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 lifting motor is common electric machine or servomotor.
5. 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. 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 |
|---|---|---|---|
| CN201410043469.3A CN103771235B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410043469.3A CN103771235B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103771235A true CN103771235A (en) | 2014-05-07 |
| CN103771235B CN103771235B (en) | 2016-08-17 |
Family
ID=50564086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410043469.3A Expired - Fee Related CN103771235B (en) | 2014-01-29 | 2014-01-29 | Dual Drive elevating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103771235B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112853A (en) * | 2020-09-28 | 2020-12-22 | 东阳鸿松机械科技有限公司 | Three-position five-way hydraulic reversing valve with overflow protection function |
Citations (4)
| 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 |
| CN101402440A (en) * | 2008-07-25 | 2009-04-08 | 白天海 | Mobile hoistable platform and labor-saving apparatus |
| CN102951576A (en) * | 2012-05-23 | 2013-03-06 | 济南吉利汽车有限公司 | Dual-drive body-in-white lifting working platform |
| CN203767805U (en) * | 2014-01-29 | 2014-08-13 | 河海大学常州校区 | Double-drive lifting mechanism |
-
2014
- 2014-01-29 CN CN201410043469.3A patent/CN103771235B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| CN101402440A (en) * | 2008-07-25 | 2009-04-08 | 白天海 | Mobile hoistable platform and labor-saving apparatus |
| CN102951576A (en) * | 2012-05-23 | 2013-03-06 | 济南吉利汽车有限公司 | Dual-drive body-in-white lifting working platform |
| CN203767805U (en) * | 2014-01-29 | 2014-08-13 | 河海大学常州校区 | Double-drive lifting mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112853A (en) * | 2020-09-28 | 2020-12-22 | 东阳鸿松机械科技有限公司 | Three-position five-way hydraulic reversing valve with overflow protection function |
| CN112112853B (en) * | 2020-09-28 | 2021-05-18 | 江苏军源装备制造有限公司 | Three-position five-way hydraulic reversing valve with overflow protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103771235B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103754738B (en) | A kind of Dual Drive lifting mechanism | |
| CN203740826U (en) | Dual-drive elevator mechanism | |
| CN203767805U (en) | Double-drive lifting mechanism | |
| CN103754736A (en) | Double-drive lifting mechanism | |
| CN203767804U (en) | Double-drive lifting mechanism | |
| CN203740824U (en) | Dual-driven lifting mechanism | |
| CN103787227B (en) | A kind of Dual Drive lifting mechanism | |
| CN103754790B (en) | A kind of Dual Drive lifting mechanism | |
| CN203767806U (en) | Dual-drive lifting mechanism | |
| CN203740825U (en) | Dual-driven lifting mechanism | |
| CN203740827U (en) | Dual-drive elevator mechanism | |
| CN103771235A (en) | Dual-drive lifting mechanism | |
| CN103787178A (en) | Double-driving lifting mechanism | |
| CN203740823U (en) | Dual-driven lifting mechanism | |
| CN203767807U (en) | Dual-drive lifting mechanism | |
| CN203767808U (en) | Dual-drive lifting mechanism | |
| CN103771234A (en) | Dual-drive lifting mechanism | |
| CN103754737A (en) | Double-drive lifting mechanism | |
| CN204324667U (en) | A kind of mine cage chair and safety door linkage | |
| CN103818804A (en) | Double-drive lifting mechanism | |
| CN103787180A (en) | Double-driving lifting mechanism | |
| CN104179739B (en) | The two-way Confluent control system of double pump and apply the fire fighting truck of this system | |
| WO2010081363A1 (en) | Hydraulically driven multi-storey parking device | |
| CN103787179A (en) | Double-driving lifting mechanism | |
| CN103787177B (en) | A kind of Dual Drive lifting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210129 |