CN110482434A - A kind of lifting device - Google Patents
A kind of lifting device Download PDFInfo
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- CN110482434A CN110482434A CN201910780165.8A CN201910780165A CN110482434A CN 110482434 A CN110482434 A CN 110482434A CN 201910780165 A CN201910780165 A CN 201910780165A CN 110482434 A CN110482434 A CN 110482434A
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- platform
- guide
- lifting device
- rotating nuts
- transmission connection
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- 230000003028 elevating effect Effects 0.000 claims abstract description 32
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
A kind of lifting device, it include: the first platform, the second platform, third platform, transmission connection piece and driving device, the transmission connection piece is connected with first platform and the third platform respectively, the driving device can drive second platform to move up and down, and drive the third platform to move up and down by the transmission connection piece when second platform moves up and down.Lifting device of the invention has the advantage that be driven using servo motor, control precisely, linear motion is converted for rotary motion using nut rotary type ball-screw, have it is high-efficient, carrying greatly, walk accurate feature；Using the drive chain of " movable pulley " formula, it can be achieved that lifting speed is double, stroke is double, keeps elevating mechanism overall structure more compact；It is limited using guide rod, linear bearing, using chain, synchronous belt is driven, and lifting device overall structure is simple, low cost, is easy repair and maintenance.
Description
Technical field
The present invention relates to lifting device technical field, a kind of particularly lifting device.
Background technique
Currently, elevating mechanism in various manufacturing fields using very extensive, the class of elevating mechanism is numerous, is tied according to lifting
The difference of structure is broadly divided into scissor-type, double-cylinder type, crank arm type, chain-type etc., wherein most of use hydraulic-driven or electricity
Machine driving.The drawbacks such as hydraulic-driven is unfavorable for accurately controlling there are raised position, lifting force deficiency, in addition hydraulic lifter knot
Structure complexity, installation trouble, high failure rate, at high cost, Maintenance Difficulty, response speed are slow, and using effect is not fully up to expectations.
Publication date is September in 2018 25, the Chinese utility model patent of Publication No. CN207903704U discloses one
Kind chain-type elevator, is directly driven using hydraulic cylinder, is drawn by chain, bearing and second level guide rail are limited
Position is gone up and down from realizing.This elevator structure is complicated, and later period maintenance space is small, high due to using hydraulic cylinder to be driven
Degree, which can not achieve, to be precisely controlled, and response speed is slow.
Publication date is on May 17th, 2019, and the Chinese utility model patent of Publication No. CN208869234U discloses one
Kind chain-type elevator, is driven using motor, and chain traction hoistable platform, edge are driven after being adjusted the speed by speed reducer
Guide rail moves up and down, and realizes elevating function.This elevator structure is simple and compact, and chain is mounted on different transmissions by changing
On the sprocket wheel of ratio, the speed-regulating function of limited speed ratio is realized, speed regulation does not have continuity and agility.
Existing lifting device is primarily present following problems, and existing lifting device uses Driven by Hydraulic Cylinder mode, and height is not
It is able to achieve and is precisely controlled, response speed is slow；The up-down mode of existing lifting device does not have speed-regulating function；Existing lifting device
Structure is complicated, installation trouble, high failure rate, at high cost, Maintenance Difficulty.
Summary of the invention
The present invention provides a kind of lifting device, which can realize being precisely controlled for lift in height, and has and ring
Answer speed fast, lifting speed-regulating function is big, the low advantage of features simple structure, simple to install, failure rate.
A kind of lifting device, comprising: the first platform, the second platform, third platform, transmission connection piece and driving device,
The transmission connection piece is connected with first platform and the third platform respectively, and the driving device can drive described second
Platform moves up and down, and drives the third platform to rise by the transmission connection piece when second platform moves up and down
Drop movement.
Further, interconnecting piece, the interconnecting piece phase of the transmission connection piece and the second platform are provided on second platform
Even, transmission connection piece around the second platform interconnecting piece after be connected respectively with the first platform and third platform, transmission connection piece around
It forms lap after crossing the interconnecting piece of the second platform and forms movable pulley structure, when interconnecting piece is moved up and down with the second platform
Transmission connection piece movement is driven, the distance that transmission connection piece drives the second platform to move up or down when moving is third platform
Corresponding twice for moving up or down distance.
Further, the transmission connection piece is chain, and the interconnecting piece on the second platform is sprocket wheel or the transmission
Connector is transmission belt, and the interconnecting piece on the second platform is belt pulley.
Further, the driving device includes: motor, and the rotating nuts on the first platform base are arranged in, respectively with rotation
The ball-screw that turn nut and the second platform are connected, the first gear being connected with rotating nuts, the second gear being connected to the motor,
The rotation of motor driven second gear, second gear drive rotating nuts to rotate by first gear, and rotating nuts drive rolling in turn
Ballscrew does oscilaltion campaign, and ball-screw drives the second platform and sprocket wheel elevating movement, and sprocket wheel elevating movement drives chain
Movement, chain and then drive third platform elevating movement.
Further, the driving device includes: motor, and the rotating nuts on the first platform base are arranged in, respectively with rotation
The ball-screw that turn nut and the second platform are connected, the first synchronous pulley being connected with rotating nuts, second be connected to the motor
Synchronous pulley, and the synchronous belt being connected with the first synchronous pulley and the second synchronous pulley, the second synchronous belt of motor driven rotation
Dynamic, the second synchronous pulley drives rotating nuts rotation by synchronous belt and the first synchronous pulley, and rotating nuts drive ball in turn
Lead screw does oscilaltion campaign, and ball-screw drives the second platform and sprocket wheel elevating movement, and sprocket wheel elevating movement drives chain fortune
It is dynamic, chain and then drive third platform elevating movement.
Further, the motor is servo motor.
Further, motor is mounted on the first platform by electric machine support, and rotating nuts are set by rotating nuts fixing seat
It sets on the first platform base, rotating nuts can be rotated relative to rotating nuts fixing seat.
It further, further include guiding device in the lifting device, the guiding device includes guidance the second platform lifting
Movement the first guiding device, and/or guidance the elevating movement of third platform the second guiding device, with guide the second platform and/
Or third platform carries out elevating movement.
Further, first guiding device includes: the first guide part being arranged on the first platform base, the second platform base
The first guide rod being correspondingly arranged on seat, the first guide rod can be inserted into the first guide part, and the first guide rod on the second platform is led along first
The guide direction limited to portion carries out lifting moving, thus the second platform lifting moving of guidance.
Further, second guiding device includes: the second guide part being arranged on the first platform base, the second platform base
The third guide part being arranged on seat, the second guide part and the alignment setting of third guide part, are aligned the second guide part and the of setting
Three guide parts form one group of guide frame, and the second guide rod is correspondingly arranged on third platform base, and the second guide rod can be inserted into described
In guide frame, the second guide rod is risen along the guide direction that the guide frame that the second guide part and third guide part are formed limits
Drop movement, to guide third platform lifting moving.
Further, the first guide part, the second guide part, third guide part are linear bearing or guide groove.
Further, it is provided with column on the second platform base, sprocket wheel is mounted on column, and sprocket wheel is wound around the sprocket wheel of column
On.
Further, the column includes a, and the end of a column connects upright post connecting plate, with enhancing structure stability, rolling
Ballscrew one end is connected with the second platform base, and the ball-screw other end is connected with upright post connecting plate, whole to enhance the second platform
Body rigidity.
Lifting device of the invention has the advantage that
1) it is driven using servo motor, control precisely, is converted rotary motion using nut rotary type ball-screw
For linear motion, have high-efficient, carrying is big, and walk accurate feature；
2) using the drive chain of " movable pulley " formula, it can be achieved that lifting speed is double, stroke is double, makes elevating mechanism overall
Structure is more compact；
3) it is limited using guide rod, linear bearing, using chain, synchronous belt is driven, lifting device overall structure
Simply, low cost is easy repair and maintenance.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is the schematic diagram of the lifting device of first embodiment of the invention；
Fig. 2 is the partial structural diagram of lifting device in Fig. 1；
Fig. 3 is the lifting schematic illustration of lifting device in Fig. 1；
The schematic diagram of the lifting device of Fig. 4 second embodiment of the invention.
Fig. 5 is the partial structural diagram of lifting device in Fig. 4.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Appended drawing reference are as follows:
In embodiment one shown in Fig. 1-3: 1 is the first platform, 100 be the first platform base, 101 is first straight line axis
Hold, 102 be second straight line bearing, 103 be rotating nuts component, 104 be synchronous belt, 105 be the first synchronous pulley, 106 be electricity
Machine support, 107 be the second synchronous pulley, 108 be servo motor, 109 be sprocket wheel, 2 be the second platform, 200 be the second platform base
Seat, 201 be ball-screw, 202 be the first guide rod, 203 be column, 204 be guide rod connecting plate, 205 be upright post connecting plate, 212
It is third platform for third linear bearing, 3,300 be third platform base, 301 be the second guide rod, 4 is transmission connection piece, 1031
It is rotating nuts for rotating nuts fixing seat, 1032,1033 be screw, 10321 be ball, 104 be synchronous belt, 105 is first
Synchronous pulley, 106 be electric machine support, 107 be the second synchronous pulley, 108 be servo motor, 201 be ball-screw, 2011 to lead
To slot.
In embodiment two shown in Fig. 4-5: 103 being rotating nuts component, 1033 be screw, 106 be electric machine support, 108
For servo motor, 110 be first gear, 111 be second gear, 1031 be rotating nuts fixing seat, 1032 be rotating nuts,
1033 it is screw, 10321 be ball, 106 be electric machine support, 108 be servo motor, 110 be first gear, 111 is the second tooth
Wheel, 201 be ball-screw, 2011 be guide groove.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1-3, lifting device of the invention includes the first platform 1, the second platform 2, third platform 3, transmission company
Fitting 4 and driving device, transmission connection piece 4 are connected with the first platform 1 and third platform 3 respectively, such as transmission connection piece 4 connects
It connects between the first platform 1 and third platform 3 or one end of transmission connection piece 4 is connected with the first platform 1, transmission connection piece 4
The other end be connected with third platform 3, the driving device can drive the second platform 2 to move up and down, and the second platform 2 is gone up and down
Third platform 3 can be driven to move up and down by transmission connection piece 4 when movement.
Second platform 2 is provided with interconnecting piece, and above-mentioned transmission connection piece 4 is connected with the interconnecting piece of the second platform 2, transmission connection
Part 4 with the first platform 1 and third platform 3 around being connected respectively after the interconnecting piece of the second platform 2, and transmission connection piece 4 bypasses
Lap is formed after the interconnecting piece of second platform 2, drives the second platform 2 to move up and down in driving device, and then pass through biography
During follower link 4 drives third platform 3 to move up and down, interconnecting piece is synchronized with the second platform 2 and is moved up and down, transmission
Connector 4 moves to form movable pulley structure around interconnecting piece, thus when the second platform 2 move up or down H apart from when, third is flat
The correspondence of platform 3 moves up or down 2H distance.
Specifically, above-mentioned transmission connection piece 4 can be chain, and the interconnecting piece on the second platform 2 can be sprocket wheel
109 or above-mentioned transmission connection piece 4 can be transmission belt, the interconnecting piece on the second platform 2 can be belt pulley.In addition,
It is also possible to other transmission connecting mechanisms in the prior art, as long as dynamic cunning can be formed between transmission connection piece 4 and interconnecting piece
Wheel construction.
It may also include guiding device in above-mentioned lifting device, guiding device may include guidance 2 elevating movement of the second platform
First guiding device, and the second guiding device of guidance 3 elevating movement of third platform, in order in the driving of driving device
Under, guide the second platform 2 and third platform 3 to carry out elevating movement.
Embodiment 1:
As shown in Figs. 1-2, the driving device on the first platform 1 includes: the rotation spiral shell being arranged on the first platform base 100
Mother 1032, the motor 108 being mounted on the first platform base 100, the ball wire being connected respectively with rotating nuts and the second platform 2
Thick stick 201, the first synchronous pulley 105 being connected with rotating nuts 1032, the first synchronous pulley 105 can be revolved with rotating nuts 1032
Turn, the second synchronous pulley 107 being mounted in the rotation axis of motor 108, and with the first synchronous pulley 105 and the second synchronous belt
The connected synchronous belt 104 of wheel 107.Second being rotated by motor 108 of synchronous pulley 107, the second synchronous pulley 107 pass through
Synchronous belt 104 drives the first synchronous pulley 105, and the first synchronous pulley 105 drives rotating nuts 1032 to rotate, to realize driving
Rotating nuts 1032 rotate.
Rotating nuts 1032 rotate under the drive of the motor and drive ball-screw 201 to do oscilaltion campaign in turn, roll
Ballscrew 201 drives the second platform 2 integrally to carry out elevating movement when going up and down.Sprocket wheel 109 on second platform 2 is with the second platform 2
Elevating movement, sprocket wheel 109, which moves up and down, drives chain 4 to move, chain 4 and then drive 3 elevating movement of third platform.
Above-mentioned motor 108 is preferably servo motor, and motor 108 is mounted on the first platform by electric machine support 106, is rotated
Nut 1032 is arranged on the first platform base 100 by rotating nuts fixing seat 1031, rotating nuts 1032 and rotating nuts
Fixing seat 1031 forms rotating nuts component 103, and rotating nuts 1032 can be rotated relative to rotating nuts fixing seat 1031.
Above-mentioned first guiding device includes: that multiple first guide parts, the first guide part are provided on the first platform base 100
It can be first straight line bearing 101 or the first guide groove, for example, by using 8 first straight line bearings 101, first straight line bearing 101
It is symmetrically arranged at the two sides of the first platform base, vertical non-alignment or central axis alignment 2 first straight line bearings
101 form one group, and first straight line bearing 101 includes the first straight line bearing 101 of multiple groups consistency from top to bottom setting, every group of consistency from top to bottom
The first straight line bearing 101 of setting forms a guide frame.Multiple first guide rods are correspondingly arranged on second platform base 200
202, the first guide rod 202 can be inserted into the guide frame of 2 first straight line bearings 101 formation of central axis alignment, such as adopt
With 4 the first guide rods 202, what 2 first straight line bearings 101 that each first guide rod 202 is inserted into central axis alignment were formed is led
Into structure.The end of the first guide rod of every two 202 is attached by guide rod connecting plate 204, with enhancing structure stability.It is rolling
Under the driving of ballscrew 201, the first guide rod 202 on the second platform 2 is limited along the guide frame that first straight line bearing 101 is formed
Guide direction carry out lifting moving, thus guidance 2 lifting moving of the second platform.
Above-mentioned second guiding device includes: that the second guide part is additionally provided on the first platform base 100, and the second guide part can
To be second straight line bearing 102 or the second guide groove, for example, by using 2 second straight line bearings 102.On second platform base 200
It is provided with third guide part, third guide part can be third linear bearing 212 or third guide groove, for example, by using 2 thirds
Linear bearing 212.212 shape of second straight line bearing 102 and third linear bearing of consistency from top to bottom setting (central axis alignment)
At one group of guide frame.Third platform 3 includes third platform base 300, the second guide rod 301, third platform base 300 and second
Guide rod 301 as a whole, is correspondingly arranged on the second guide rod 301 on third platform base 300, the second guide rod 301 can be inserted into
In the guide frame that the second straight line bearing 102 and third linear bearing 212 of central axis alignment are formed, for example, by using 2 the
Two guide rods 301, each second guide rod 301 are inserted into 212 shape of second straight line bearing 102 and third linear bearing of central axis alignment
At guide frame in.Chain 4 is connect with third platform base 300, and under the driving of chain 4, second on third platform 3 is led
Bar 301 carries out lifting fortune along the guide direction that the guide frame that second straight line bearing 102 and third linear bearing 212 are formed limits
It is dynamic, so that 3 lifting moving of third platform is guided, the second straight line bearing 102 and third of every 2 central axis alignment setting in figure
Linear bearing 212 forms a guide frame, shares 2 guide frames.
Column 203 is provided on second platform base 200, sprocket wheel 109 is mounted on column 203, such as the end of column 203
Portion, sprocket wheel 109 are wound around on the sprocket wheel 109 of column 203 and can rotate on column 203.Above-mentioned column may include 2 columns
203, the both ends of column 203 connect upright post connecting plate 205, with enhancing structure stability, 201 one end of ball-screw and the second platform
Pedestal 200 is connected, and 201 other end of ball-screw is connected with upright post connecting plate 205, to enhance the second platform overall stiffness, ball
The middle part of lead screw 201 is connected with rotating nuts 1032, and rotating nuts 1032 can push ball-screw 201 to do elevating translational when rotating
Movement.Above-mentioned second platform 2 is led including 203,4 first the second platform base 200, ball-screw 201,2, column as a result,
Bar, 2 guide rod connecting plates, upright post connecting plate 205.
Rotating nuts 1032 rotate under the drive of the motor and and then drive the up and down motion of ball-screw 201, ball-screw
201 drive the second platform 2 is whole to carry out elevating movement along 8 first straight line bearings 101.Sprocket wheel 109 on second platform 2 is (even
Socket part) with 2 elevating movement of the second platform, sprocket wheel 109 (interconnecting piece) moves up and down 2 chains 4 of drive and moves, and then drives the
Three platforms 3 are moved along second straight line bearing 102, third linear bearing 212.
As shown in Fig. 2, servo motor 108 is mounted on electric machine support 106, the second synchronous pulley 107 is mounted on servo electricity
On machine 108, the second synchronous pulley 107 can be rotated under the driving of 108 output shaft of servo motor, the connection of synchronous belt 104 the
Two synchronous pulleys 107 and the first synchronous pulley 105, and the rotation of the second synchronous pulley 107 is passed into the first synchronous pulley
105.First synchronous pulley 105 is connect by screw 1033 with rotating nuts 1032, and rotating nuts 1032 can be relative to rotation spiral shell
Female fixing seat 1031 rotates, and squeezes the guide groove in ball-screw 201 by Internal steel ball 10321 when rotating nuts 1032 rotate
2011, to realize (namely lifting) movement upward or downward of ball-screw 201, ball-screw 201 is upwardly or downwardly
Movement depends on the rotation direction of servo motor 108.
Lifting device of the invention is driven using servo motor, it can be achieved that moving height is precisely controlled, relative to hydraulic cylinder
Driving method, servo motor has the advantages that quick response, it can be achieved that quick response driving, is driven using servo motor, may be used also
Speed is accurately controlled；It is limited using guide rod, linear bearing, chain, toothed belt transmission, lifting device overall structure
Simply, low cost is easy repair and maintenance, has the characteristics that long service life, rising are steady, easy to operate.
As a result, when lifting device of the invention work, in the first platform 1, the first first straight line of platform base 100,8
101,2 second straight line bearings 102 of bearing, the rotating nuts fixing seat 1031 in rotating nuts component 103, synchronous belt 104,
One synchronous pulley 105, electric machine support 106, the second synchronous pulley 107, servo motor 108 can regard an overall structure as, relatively
For the second platform 2, third platform 3 of movement, which is not moved up and down.In first platform 1, only internal
Servo motor 108 drives the second synchronous pulley 107 to drive synchronous belt 104, and then drives the first synchronous pulley 105, further
The rotating nuts 1032 in rotating nuts component 103 are driven to be rotated.The rotation driving ball-screw 201 of rotating nuts 1032 is done
Linear motion, ball-screw 201 are connected with the second platform 2, and then ball-screw 201 drives 2 phase of the second platform to move up and down.
When second platform 2 moves up and down, 109 synchronization lifting of sprocket wheel on column 203 movement, when 109 elevating movement of sprocket wheel, can pass through
Chain 4 drives third platform 3 to move up and down.
Specific descending operation mode is as follows:
When ascending motion:
Servo motor 108 rotates forward, and drives rotation by the second synchronous pulley 107, synchronous belt 104, the first synchronous pulley 105
Nut 1031 rotates forward, and the ball 10321 in rotating nuts 1031 pushes the guide groove 2011 in ball-screw 201 to move upwards,
And then ball-screw 201 is driven to move upwards.Since ball 10321 is driven to roller driving ball-screw 201, driven than sliding
Kinetic force of friction is smaller, and drive efficiency is higher.Ball-screw 201 drives the second platform 2 integrally to move upwards when moving up, sprocket wheel
109 move upwards, and chain 4 is driven to move, and then third platform 3 is driven to move upwards.Wherein, the second platform 2 passes through 4 first
Guide rod 202 passes through 4 groups of (every group 2) first straight line bearings 101 and moves upwards, and third platform 3 passes through 2 the second guide rods
301, which pass through 1 group of (every group 2) second straight line bearing 102 and 1 group third linear bearing 212, moves upwards.
When descending motion:
Servo motor 108 inverts, and drives rotation by the second synchronous pulley 107, synchronous belt 104, the first synchronous pulley 105
Nut 1031 inverts, and the ball 10321 in rotating nuts 1031 pushes the guide groove 2011 in ball-screw 201 to move downward,
And then ball-screw 201 is driven to move downward.Since ball 10321 is driven to roller driving ball-screw 201, driven than sliding
Kinetic force of friction is smaller, and drive efficiency is higher.Ball-screw 201 drives the second platform 2 integrally to move downward when moving down, sprocket wheel
109 move downward, and chain 4 is driven to move, and then third platform 3 is driven to move downward.Wherein, the second platform 2 passes through 4 first
Guide rod 202 passes through 4 groups of (every group 2) first straight line bearings 101 and moves downward, and third platform 3 passes through 2 the second guide rods
301, which pass through 1 group of (every group 2) second straight line bearing 102 and 1 group third linear bearing 212, moves upwards.
As shown in Figure 1, Figure 3, the A in Fig. 3 is equivalent to the sprocket wheel 109 in Fig. 1, and the L in Fig. 3 is equivalent to the chain in Fig. 1
G in 4, Fig. 3 is equivalent to the first platform 1 in Fig. 1, and the F1 in Fig. 3 is equivalent to the third platform 3 in Fig. 1.When A prolong the direction F to
The distance of H is moved when lower movement, the unlocked end G in figure, free end F1 can then move S, and A can be regarded as to pulley, the resistance at the end F1
The arm of force is L1+L2, and the power arm at the end F is L2, because of L1=L2, resistance arm=2 × power arm, and the distance that F1 is moved down
The A that S is equal to 2 times prolongs the mobile distance H of F.Fig. 1 is corresponded to, the second platform 2 moves up or down, and pushes sprocket wheel 109 upward
Or move down, it is equivalent to A in Fig. 3 and moves up or down H, drive the lower end of chain 4 mobile, and then drive third platform 3
Move up or down S, after all rising or falling H distance due to S=2H namely the chain of two sides 4, third platform 3 rise or
Decline 2H distance, the mobile distance of second platform 2 of the mobile distance of third platform 3 equal to 2 times, in the unit time, third is flat
The speed of platform 3 is the speed of 2 times of the second platform 2, to realize speed function, realizes quick response.
It in the present invention, is driven using servo motor 108, peripheral control unit can control the rotation circle of servo motor 108
Several and rotation speed, the circle number of control servo motor 108 can control moving distance, and the rotation speed of control servo motor 108 can
The control of movement velocity is carried out, so the setting by peripheral control unit can according to requirements, the rotation to servo motor 108
Several and rotation speed of turn-taking accurately is controlled, to accurately be controlled moving up and down for this elevating mechanism.
Embodiment 2:
As shown in figure 4, the difference of the present embodiment and embodiment 1 essentially consists in driving device, specifically, by the in Fig. 1
One synchronous pulley 105, the second synchronous pulley 107 replace with first gear 111, second gear 110 respectively, by 2 gears into
Row intermeshing transmission, removes synchronous belt 104.Second gear 111 is mounted on servo motor 108, and first gear 110 passes through spiral shell
Nail 1033 is attached with rotating nuts component 103.Reality is substituted using first gear 111, second gear 110 in the present embodiment
The belt wheel transmission mode in example 1 is applied, structure is simple, provides more more options for user.
As shown in figure 5, servo motor 108 is mounted on electric machine support 106, second gear 111 is mounted on servo motor 108
On, it is rotated under the driving of the axis of servo motor 108, second gear 111 drives first gear 110 to rotate.First gear
110 are connect by screw 1033 with rotating nuts 1032, and rotating nuts 1032 can be revolved relative to rotating nuts fixing seat 1031
Turn, the guide groove 2011 in ball-screw 201 is squeezed by Internal steel ball 10321 when rotating nuts 1032 rotate, realizes ball
The upwardly or downwardly movement of the upwardly or downwardly movement of lead screw 201, ball-screw 201 depends on turning for servo motor 108
Dynamic direction.
Structurally and operationally mode is identical as embodiment 1 for remaining in embodiment 2, and details are not described herein.
Although the present invention is not limited in above 2 embodiment it should be noted that illustrating driving device in 2 in the present invention
The driving device, other existing driving devices all can be used.Such as motor in replaceable 2 embodiment and use other
Power device, also replaceable 2 rotating nuts 1032 and ball screw arrangement used in the examples, and conversion is gone to using other
For the device of linear movement.
More simplifiedly, the second platform 2 can be directly driven using driving device to move up or down, for example, by using straight line
Driving device directly drives the second platform 2 and moves up or down, and substitutes 2 translating rotations used in the examples as straight line shifting
Dynamic reforming unit.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (13)
1. a kind of lifting device characterized by comprising the first platform, the second platform, third platform, transmission connection piece and
Driving device, the transmission connection piece are connected with first platform and the third platform respectively, and the driving device can drive
It moves second platform to move up and down, drives described the by the transmission connection piece when second platform moves up and down
Three platforms move up and down.
2. lifting device according to claim 1, which is characterized in that it is provided with interconnecting piece on second platform, it is described
Transmission connection piece is connected with the interconnecting piece of the second platform, and transmission connection piece is around flat with first respectively after the interconnecting piece of the second platform
Platform is connected with third platform, and transmission connection piece forms movable pulley knot around lap is formed after the interconnecting piece of the second platform
Structure drives transmission connection piece movement when interconnecting piece is moved up and down with the second platform, drive second is flat when transmission connection piece moves
The distance that platform moves up or down is corresponding twice for moving up or down distance of third platform.
3. lifting device according to claim 1 or 2, which is characterized in that the transmission connection piece is chain, the second platform
On the interconnecting piece be sprocket wheel or the transmission connection piece is transmission belt, the interconnecting piece on the second platform is belt
Wheel.
4. lifting device according to claim 3, which is characterized in that the driving device includes: motor, is arranged first
Rotating nuts on platform base, the ball-screw being connected respectively with rotating nuts and the second platform are connected with rotating nuts
First gear, the second gear being connected to the motor, the rotation of motor driven second gear, second gear is driven by first gear revolves
Turn nut rotation, rotating nuts and then driving ball-screw do oscilaltion campaign, and ball-screw drives the second platform and sprocket wheel
Elevating movement, sprocket wheel elevating movement drive chain movement, chain and then drive third platform elevating movement.
5. lifting device according to claim 3, which is characterized in that the driving device includes: motor, is arranged first
Rotating nuts on platform base, the ball-screw being connected respectively with rotating nuts and the second platform are connected with rotating nuts
First synchronous pulley, the second synchronous pulley being connected to the motor, and be connected with the first synchronous pulley and the second synchronous pulley
Synchronous belt, the rotation of the second synchronous pulley of motor driven, the second synchronous pulley drive rotation by synchronous belt and the first synchronous pulley
Nut rotation, rotating nuts and then driving ball-screw do oscilaltion campaign, and ball-screw drives the second platform and sprocket wheel liter
Drop movement, sprocket wheel elevating movement drive chain movement, chain and then drive third platform elevating movement.
6. lifting device according to claim 4 or 5, which is characterized in that the motor is servo motor.
7. lifting device according to claim 4 or 5, which is characterized in that it is flat that motor by electric machine support is mounted on first
On platform, rotating nuts are arranged on the first platform base by rotating nuts fixing seat, and rotating nuts can be relative to rotating nuts
Fixing seat rotation.
8. lifting device according to claim 1, which is characterized in that it further include guiding device in the lifting device, institute
Stating guiding device includes the first guiding device for guiding the second platform elevating movement, and/or guides the elevating movement of third platform
Second guiding device, to guide the second platform and/or third platform to carry out elevating movement.
9. lifting device according to claim 8, which is characterized in that first guiding device includes: the first platform base
The first guide part being arranged on seat, the first guide rod being correspondingly arranged on the second platform base, the first guide rod can be inserted into the first guiding
Portion, the first guide rod on the second platform carries out lifting moving along the guide direction that the first guide part limits, so that guidance second is flat
Platform lifting moving.
10. lifting device according to claim 8, which is characterized in that second guiding device includes: the first platform base
The second guide part being arranged on seat, the third guide part being arranged on the second platform base, the second guide part and third guide part pair
Neat setting, the second guide part and third guide part for being aligned setting form one group of guide frame, and correspondence is set on third platform base
It is equipped with the second guide rod, the second guide rod can be inserted into the guide frame, and the second guide rod is along the second guide part and third guide part shape
At guide frame limit guide direction carry out lifting moving, to guide third platform lifting moving.
11. lifting device according to claim 9 or 10, which is characterized in that the first guide part, the second guide part, third
Guide part is linear bearing or guide groove.
12. lifting device according to claim 4 or 5, which is characterized in that be provided with column, chain on the second platform base
Wheel is mounted on column, and sprocket wheel is wound around on the sprocket wheel of column.
13. lifting device according to claim 12, which is characterized in that the column includes a, the end company of a column
Connect upright post connecting plate, with enhancing structure stability, ball-screw one end is connected with the second platform base, the ball-screw other end with
Upright post connecting plate is connected, to enhance the second platform overall stiffness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780165.8A CN110482434A (en) | 2019-08-22 | 2019-08-22 | A kind of lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780165.8A CN110482434A (en) | 2019-08-22 | 2019-08-22 | A kind of lifting device |
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| CN110482434A true CN110482434A (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910780165.8A Pending CN110482434A (en) | 2019-08-22 | 2019-08-22 | A kind of lifting device |
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| CN (1) | CN110482434A (en) |
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| CN110953315A (en) * | 2019-12-27 | 2020-04-03 | 福州大学 | Travel-multiplied double-manipulator synchronous lifting mechanism and working method thereof |
| CN112265931A (en) * | 2020-10-15 | 2021-01-26 | 上海航天测控通信研究所 | Synchronous lifting device for corrugated pipe connector and load driving device |
| CN112850546A (en) * | 2020-12-23 | 2021-05-28 | 江苏凯能机械设备有限公司 | Four-axis synchronous lifting mechanism with protection function |
| US20210380379A1 (en) * | 2020-06-03 | 2021-12-09 | Mammoet Usa South, Inc. | Lift System for Heavy Oversized Structural Element |
| CN114436161A (en) * | 2022-01-28 | 2022-05-06 | 上海广川科技有限公司 | Multi-stage lifting mechanism for semiconductor wafer transmission system |
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| CN114436161A (en) * | 2022-01-28 | 2022-05-06 | 上海广川科技有限公司 | Multi-stage lifting mechanism for semiconductor wafer transmission system |
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