CN107915168A - The lifting gear and its installation method of the interchangeable coaxial automatic fine tuning of type - Google Patents
The lifting gear and its installation method of the interchangeable coaxial automatic fine tuning of type Download PDFInfo
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- CN107915168A CN107915168A CN201711190137.8A CN201711190137A CN107915168A CN 107915168 A CN107915168 A CN 107915168A CN 201711190137 A CN201711190137 A CN 201711190137A CN 107915168 A CN107915168 A CN 107915168A
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- lifting frame
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- 238000007789 sealing Methods 0.000 claims description 6
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Classifications
-
- 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
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of lifting gear particularly for large lift height.It has basic framework, lifting frame and driving device, the driving device includes the first hydraulic drive unit and the second hydraulic drive unit being symmetrical set, and some table top sensors, the table top sensor are used to detect whether lifting frame side reaches target mesa；3rd hydraulic drive unit is set between lifting frame and basic framework, and the hydraulic cylinder of the described first or second hydraulic drive unit and the hydraulic cylinder of the 3rd hydraulic drive unit are coaxial or conllinear；First, second, and third hydraulic drive unit has identical performance and size.Since the 3rd hydraulic drive unit can carry out the interchangeable coaxial automatic fine tuning of type in lifting frame run-off the straight to lifting frame, so that lifting frame in multiple two-way process automatic leveling and be not easy run-off the straight, effectively improve the stationarity, reliability and applicability of lifting frame.
Description
Technical field
The present invention relates to a kind of large-scale lifting gear/lifting platform for being particularly suitable for large lift height, lifting gear tool
There are a basic framework, the lifting frame and at least one set for receiving live load to be used to make lifting frame relative to basic subrack
The driving device of frame vertical lifting.
Background technology
This lifting gear is used to lift the live load being placed on lifting frame.Such as in the industrial production, use this
Kind lifting gear makes material lift or drop in the big height of preferred 0.5m or even more than 20m, so that material leaves initial platform
Face, reaches target mesa.
It is high that lifting gear of the known lifting gear as described in PCT/EP2007/003519 etc. is primarily adapted for use in small lifting
Degree, cannot be applicable in the application scenario of large lift height.Liter of the known lifting gear as described in CN201120139819.8 etc.
Although falling unit is suitable for large lift height and large scale material, the driving device of the right and left are laterally inclined in material center of gravity
Easily there are asynchronous problem when more from lifting frame table top center, and then lifting frame is caused to tilt, to life
Production and use are made troubles.
At present, it is traditionally used for realizing the lifting gear of material vertical lift, especially four column lifting gears, it is synchronous real
Existing mode, which often relies on, improves hydraulic circuit realization synchronously, the drawback is that：Hydraulic circuit is relative complex, its synchronism is subject to various
Factor influences, and such as fabricates error, leakage, and limited reliability, still easily occurs in use for some time not
Stationary problem.Such as using precision and the higher high-end hydraulic circuit of reliability, its cost is relatively expensive, system stability and reliable
Property is easily influenced and substantially reduced by poor environment or bad maintaining.
On the other hand, the force application location often drive with lifting gear of the adjusting apparatus of lifting frame tilt quantity in itself is reduced
The force application location of dynamic device is different, and the extra torsion during adjustment easily causes new inclination, and increases lifting gear
Inside contradicts, and reduces the stability and service life of lifting gear.When the force for the adjusting apparatus for reducing lifting frame tilt quantity
When the force application location of driving device of the position with lifting gear in itself is identical, generally require using the driving with lifting gear in itself
The different driving device of device, is not easy to being used interchangeably between hydraulic cylinder, is not easy to simplify design and manufacture.
Particularly, the tilt problem of lifting frame is solved by manual mode of operation, then easily increases the work of operating personnel
Make load, it is necessary to carry out special training, operating personnel maloperation risk more demanding to operator quality to operating personnel
It is higher.
The content of the invention
The object of the present invention is to design a kind of lifting gear of the type mentioned at the beginning and its installation, application method, it is relied on
Interchangeable type can be achieved without high-precision hydraulic circuit coaxially certainly for the 3rd hydraulic drive unit and table top sensor added
It is dynamic synchronous, so as to effectively avoid lifting frame from tilting.
In one embodiment, a kind of lifting gear is described.The device includes basic framework, for receiving live load
Lifting frame and for making driving device of the lifting frame relative to basic framework vertical lifting；The driving device includes behaviour
Control unit, and two sets of hydraulic drive units i.e. the first hydraulic drive unit being symmetrical set and the second hydraulic-driven list
Member；3rd hydraulic drive unit is set between the lifting frame and basic framework；First hydraulic drive unit and
The hydraulic cylinder of one of two hydraulic drive units and the hydraulic cylinder of the 3rd hydraulic drive unit are coaxial or conllinear；
First hydraulic drive unit, the second hydraulic drive unit and the 3rd hydraulic drive unit have identical performance and size.
In a kind of embodiment of the embodiment described, the basic framework includes vertical column, main orbit, crossbeam
Deng；The main orbit and vertical column are same component.
In a kind of embodiment of the embodiment described, the 3rd hydraulic drive unit is consolidated including the 3rd hydraulic-driven
Determine component and the 3rd hydraulic-driven moving assembly, the 3rd hydraulic-driven fixation kit connects with fixed at the top of the basic framework
Connect, the 3rd hydraulic-driven moving assembly is fixedly connected with the lifting frame；The 3rd hydraulic-driven fixation kit bag
Piston, piston rod of the 3rd hydraulic drive unit hydraulic cylinder etc. are included, the 3rd hydraulic-driven moving assembly includes the 3rd liquid
Press pedestal, end cap, sealing element of driving unit hydraulic cylinder etc..
In a kind of embodiment of the embodiment described, the driving device further includes some table top sensors, described
Table top sensor is used to detect whether lifting frame side reaches respective mesa；The table top sensor includes table top sensor
Fixation kit and table top sensor moving assembly.
In a kind of embodiment of the embodiment described, the 3rd hydraulic drive unit is located at first hydraulic pressure drive
It is of a relatively high to be less likely to occur pose when the i.e. described lifting frame of hysteresis tilts in moving cell and the second hydraulic drive unit
Side.
In a kind of embodiment of the embodiment described, first hydraulic drive unit and the second hydraulic drive unit
In be easier to occur pose relatively low side when the hysteresis, that is, lifting frame tilts target mesa First be set
Face sensor, the table top sensor fixing assembly of the first table top of target mesa sensor are fixedly connected with basic framework, institute
The table top sensor moving assembly for stating target mesa the first table top sensor is fixedly connected with lifting frame.
In a kind of embodiment of the embodiment described, the left and right sides of the lifting gear sets target mesa respectively
First table top sensor and target mesa the second table top sensor, target mesa the first table top sensor and target mesa
The table top sensor fixing assembly of two table top sensors is fixedly connected with basic framework respectively, and first table top of target mesa passes
The table top sensor moving assembly of sensor and target mesa the second table top sensor is fixedly connected with lifting frame respectively；The liter
The left and right sides of falling unit sets initial table top the first table top sensor and initial table top the second table top sensor respectively, described first
The table top sensor fixing assembly of beginning table top the first table top sensor and initial table top the second table top sensor respectively with basic subrack
Frame is fixedly connected, the table top sensor movement of initial table top the first table top sensor and initial table top the second table top sensor
Component is fixedly connected with lifting frame respectively.
In a kind of embodiment of the embodiment described, target mesa the first table top sensor and target mesa
Two table top sensors is are symmetrical set, and the target mesa the first table top sensor and the second table top of target mesa sensing
Device is located at the lifting frame left side immediate vicinity and right edge immediate vicinity respectively；The initial table top the first table top sensing
Device and the second table top of initial table top sensor is are symmetrical set, and initial table top the first table top sensor and initial platform
Face the second table top sensor is located at the lifting frame left side immediate vicinity and right edge immediate vicinity respectively.
In a kind of embodiment of the embodiment described, any table top sensor detects that the lifting frame should
When side reaches a certain table top, the driving device makes first hydraulic drive unit and the second hydraulic drive unit stop at the same time
Act on and keep that respective hydraulic cylinder in-cylinder pressure is constant and active force is constant at the same time, and produce the 3rd hydraulic drive unit
Raw active force promotes the lifting frame movement so that the tilt quantity of lifting frame reaches allowed band.
In a kind of embodiment of the embodiment described, the 3rd hydraulic drive unit, which acts power, makes the liter
During dropping frame movement, if opposite side is provided with table top sensor and the sensor detects that the lifting frame side reaches
During a certain table top, the driving device makes the 3rd hydraulic drive unit fail and keeps the 3rd hydraulic-driven list
The hydraulic cylinder in-cylinder pressure of member is constant and active force is constant；If opposite side is not provided with table top sensor, the driving device
After the 3rd hydraulic drive unit is moved a period of time set in advance or a distance, the driving device makes described the
Three hydraulic drive units fail and keep the hydraulic cylinder in-cylinder pressure of the 3rd hydraulic drive unit constant and act on
Power is constant.
In the embodiments described, corresponding installation adjusting method is also disclosed.At one of the installation adjusting method
In embodiment, operating personnel complete first liquid first after the basic framework and lifting frame installation and debugging are completed
The installation and debugging of driving unit and the second hydraulic drive unit are pressed, in first hydraulic drive unit and the second hydraulic-driven
After the completion of unit installation and debugging, then complete the installation and debugging of the 3rd hydraulic drive unit.
In a kind of embodiment of the installation adjusting method, first hydraulic drive unit and the second hydraulic pressure are being carried out
During the installation and debugging of driving unit, operating personnel are reviewed and validate described by lifting reciprocating working more than twice
It is easier that position when hysteresis, that is, lifting frame tilts occurs in first hydraulic drive unit and the second hydraulic drive unit
The relatively low side of appearance.Correspondingly, pose when being the lifting frame inclination that hysteresis is less likely to occur is relatively
High side.
In a kind of embodiment of the installation adjusting method, in lifting reciprocating working every time, operating personnel are lifting
Quality (or weight) the equivalent article almost equal with lifting gear nominal load (or maximum allowable load) is put into frame.
In one embodiment of the installation adjusting method, the installation and debugging of the 3rd hydraulic drive unit are being carried out
During, installation and the adjustment of the 3rd hydraulic drive unit should meet following condition：First hydraulic drive unit,
Two hydraulic drive units and the 3rd hydraulic drive unit are respectively mounted completion and after the tightening of related fittings whole or lockings, described
Lifting frame integral level or a small amount of inclination only allowed when lifting frame is located at extreme lower position.
The conventional methods such as improvement hydraulic circuit or high-precision hydraulic circuit different from the prior art realize that lifting frame exists
Remain synchronous in lifting process and make the real-time synchronization technique of lifting frame not run-off the straight, technical thought of the invention exists
In ignoring the asynchronous problem of hydraulic cylinder in lifting frame lifting process using end simultaneous techniques and only ensure lifting frame
The end synchronous regime for neighbouring position of reaching home.
The technical thought of this end synchronization is very useful in practical operation, is carried to solve the problems, such as that lifting gear is asynchronous
A kind of brand-new technical thought is supplied.
On the one hand, the lifting gear of large lift height is in lifting process, and with being continuously increased for adjustable height, hydraulic pressure returns
Any small leakage, foozle, component loss etc. are all easy to cause the continuous amplification of the asynchronous problem of hydraulic cylinder in road,
According to real-time synchronization thinking, then it is easy to greatly increase cost, reduces system service life and stability, and uses end
The synchronous thinking in end, then can ignore the asynchronous problem in lifting process, system cost can be reduced effectively, system service life
It can be fully guaranteed with stability.
On the one hand, whether synchronously user of service often only focuses on end, because this relation when operation controls lifting gear
Lifting frame can be conveniently passed in and out to material, and is not concerned with that a small amount of inclination or asynchronous whether occurs in lifting process, because
A small amount of inclination or it is asynchronous will not produce any influence, also tend to not noticeable, it is clear that real-time synchronization technique have ignored this
True use demand in actual mechanical process, and end simultaneous techniques meets this true use demand well, thus
Present invention solves the technical problem that essence is the asynchronous problem in end, and what the prior art based on real-time synchronization technique solved
Technical problem is substantially whole asynchronous problem.
Meanwhile the present invention by the hydraulic cylinder of the 3rd hydraulic drive unit and first hydraulic drive unit or
The hydraulic cylinder of second hydraulic drive unit is coaxial or collinear structure, can make the force application location and of the 3rd hydraulic drive unit
The force application location of one hydraulic drive unit or the second hydraulic drive unit is identical, thus can substantially reduce the volume during adjustment
New inclination caused by outer torsion, and the inside for reducing lifting gear contradicts, and improves the stability of lifting gear and using the longevity
Life.
Moreover, when the force application location and the driving device of lifting gear in itself of the adjusting apparatus for reducing lifting frame tilt quantity
Force application location it is identical when, generally require using double-act-ing hydraulic J-Horner or using the fuel-displaced single-acting hydraulic of rod chamber oil inlet
Oil cylinder, the single-action hydrocylinder that the rodless cavity oil inlet of this just driving device from lifting gear in itself is fuel-displaced is different, is not easy to
Being used interchangeably between hydraulic cylinder, is not easy to simplify design and manufacture.And three hydraulic cylinders of the present invention are mutually the same, just
In exchange, easy to simplify design and manufacture.
Particularly, the present invention realizes the automatic leveling of lifting frame by table top sensor and corresponding driving device, can
Effectively to reduce the live load of operating personnel, be not required to operating personnel carry out special training, to operator quality requirement compared with
Low, operating personnel's maloperation risk is also very low.
Therefore, beneficial effects of the present invention include：
First, the present invention overcomes the technology prejudice of whole real-time synchronization, and aiming at true use of user in use needs
I.e. end synchronisation requirement is sought, the tilt problem of lifting frame is solved using end simultaneous techniques；
Second, the end simultaneous techniques of the invention based on the 3rd hydraulic drive unit, can effectively solve the first hydraulic-driven list
The end stationary problem of member and the second hydraulic drive unit, system cost can be reduced effectively, and system service life and performance are steady
It is qualitative to be fully guaranteed；Meanwhile the automatic leveling technology of the invention based on table top sensor, manual intervention can be not required to
And realize automatic leveling, can effective control operation risk, can effectively reduce the requirement to operating personnel's experience and ability；
3rd, the main orbit and the vertical column of basic framework of the present invention are same component, have simple in structure, part
The advantages such as quantity is few, cost is low；
4th, the first hydraulic drive unit, the second hydraulic drive unit and the 3rd hydraulic drive unit of the present invention have phase
Same performance and size, thus, easy to designing, processing, purchasing, installing and debugging, cost can be reduced from another point of view, improve system
Stability of uniting and reliability；
5th, the 3rd hydraulic drive unit hydraulic cylinder provided by the invention and the first hydraulic drive unit or the second hydraulic-driven
The coaxial or collinear structure of the hydraulic cylinder of unit, can substantially reduce and new caused by the extra torsion during adjustment incline
Tiltedly, and the inside conflict of lifting gear is reduced, improves the stability and service life of lifting gear；
6th, installation and debugging method and the lifting more than twice that the 3rd hydraulic drive unit is completed after the present invention are reciprocal
The installation adjusting methods such as review of operations method, having does not increase cost additionally, and simple and convenient, mounting and adjusting is efficient, effect is good
The advantages that；
7th, the application method of lifting gear provided by the invention, can be such that system cost effectively reduces, system service life and
Stability can be fully guaranteed.
The advantages of above beneficial effect and other aspects, will be more clearly understood from by detailed description below in conjunction with the accompanying drawings,
The attached drawing principle that the invention has been described by way of example.
Brief description of the drawings
Described embodiment by by description below in conjunction with the accompanying drawings and it can be readily appreciated that reference number similar in attached drawing
Represent similar structural detail, it is described in detail below.
Fig. 1 is the general illustration according to described embodiment.
Fig. 2 is the general illustration according to basic framework in described embodiment.
Fig. 3 is the diagrammatic side view according to basic framework in described embodiment.
Fig. 4 is the general illustration according to lifting frame in described embodiment.
Fig. 5 is the general illustration according to the first hydraulic drive unit in described embodiment.
Fig. 6 is the general illustration according to the second hydraulic drive unit in described embodiment.
Fig. 7 is the general illustration according to the 3rd hydraulic drive unit in described embodiment.
Embodiment
In following specific descriptions, a large amount of details are set forth to provide the basis original for described embodiment
The thorough understanding of reason.It will be apparent to a person skilled in the art that these are specific thin for described embodiment
Section it is some or all of in the case of can also implement.During the description of embodiment, it is known that processing step not by
Specifically describe, to avoid ultimata is unnecessarily obscured.
Below by way of attached drawing detailed description of the present invention embodiment.However, it should be appreciated by those skilled in the art that herein
It is exemplary purpose with reference to the specific descriptions that these attached drawings provide, the present invention exceeds these limited embodiments.
As shown in Figure 1, the lifting gear of one embodiment of the present of invention includes basic framework 100, lifting frame 200 and drives
300 three parts of dynamic device.
The basic framework 100 is mainly that the elevating movement of the lifting frame 200 provides basic guiding, support, consolidates
The functions such as fixed and protection.
As shown in Figures 2 and 3, the basic framework 100 mainly includes rack 110, several guide rails 120, initial
Table top 130, target mesa 140 etc..
The rack 110 includes rack matrix 111, shielded frame 112 etc..
A kind of rack matrix 111 for consideration can be by forming including vertical column 111A, crossbeam 111B etc.
Mechanical structure, the mechanical structure must be fulfilled for intensity requirement needed for lifting gear, antirust requirement, it is corrosion-resistant require etc. it is various will
Ask, be mainly used for undertaking the various possible external force effects that lifting gear is subject to, while provide for lifting gear firm, reliable
Support frame.
Preferably, the rack 110 is fixed on ground.
The shielded frame 112 is fixedly connected with the rack matrix 111.
Preferably, on the one hand the shielded frame 112 can increase rack close to the target mesa for having certain altitude
The intensity of basal body structure, can be on the one hand related personnel or thing when lifting frame is close to the target mesa for having certain altitude
Product provide the protection in outside.
When there is multiple target mesas 140 with certain altitude, preferably, the rack 110 needs to set and mesh
Mark multiple shielded frames 112 of 140 identical quantity of table top.
Guide rail 120 generally sets main orbit 121, and main orbit 121 can include left side main orbit group 121A and right side
Main orbit group 121B.
Left side main orbit group 121A can include two symmetrically arranged main orbit 121A1 and main orbit 121A2.
Right side main orbit group 121B can include two symmetrically arranged main orbit 121B1 and main orbit 121B2.
Preferably, main orbit 121A1, main orbit 121A2, the size and material of main orbit 121B1 and main orbit 121B2
It is identical, all same such as the protection of use and anti-corrosive technology, installation and fixing means.
The number of tracks of main orbit 121 can be adjusted suitably according to the actual requirements, such as 4,6 or 8 etc., so as to
The size of lifting gear and performance is continuously improved.
When the driving device 300 is using the chain sling formula driving structure for being similar to common hand operated transport, alternatively, working as
200 mesa dimensions of lifting frame are larger to need to further improve stability in lifting process, increase by 200 rigidity of lifting frame
When, preferably, guide rail 120 also needs to set secondary track 122.
Similar, secondary track 122 can include left side pair track groups 122A and right side pair track groups 122B.
Left side pair track groups 122A can include two symmetrically arranged pair track 122A1 and secondary track 122A2.
Right side pair track groups 122B can include two symmetrically arranged pair track 122B1 and secondary track 122B2.
Preferably, secondary track 122A1, secondary track 122A2, the size and material of pair track 122B1 and pair track 122B2
It is identical, all same such as the protection of use and anti-corrosive technology, installation and fixing means.
The number of tracks of secondary track 122 can also be adjusted suitably according to the actual requirements, such as 4,6 or 8 etc., so that
The size and performance of lifting gear can be continuously improved.
To simplify the structure of basic framework 100, the cost of basic framework 100 is reduced, preferably, can be by vertical column
111A is designed as main orbit 121 or main orbit 122, i.e., described main orbit 121 or main orbit 122 are same with vertical column 111A
Component.It can so realize two functions of a part, i.e. the supporting structure function of main orbit function and rack matrix.
In contrast the initial table top 130 and the target mesa 140 are.
When ground is initial table top 130, the table top with certain altitude is target mesa 140.
When the table top with certain altitude is initial table top 130, if rising, the table top of higher is target mesa 140,
If declining, the table top of ground or more low clearance is target mesa 140.
, might as well be using ground as initial table top 130 for ease of narration, the lifting gear only includes a target mesa 140.
As shown in figure 4, the lifting frame 200 be mainly used for receive live load, it include lifting frame matrix 210,
Guide wheel group 220, lifting frame protection network 230 etc..
The live load mostlys come from the self gravitation of all parts for participating in lifting such as lifting frame 200, with
And the self gravitation of material that lifting frame 200 is carried.
The lifting frame matrix 210 can be a variety of mechanical structures, and the mechanical structure meets lifting gear
Required intensity requirement, antirust requirement, the corrosion-resistant various requirement such as require.For example, the lifting frame matrix 210 can be by steel
Section bar processed splices and forms a hollow structure, and the door that can be opened and closed is set in the side of close target mesa 140, with
Just all kinds of protections etc. in cargo disengaging and lifting process.
The guide wheel group 220 includes several main guide wheel groups 221, each main guide wheel group 221 respectively with main orbit
121 are engaged, to ensure lifting frame 200 in lifting process all the time along guide rail 120 determine it is generally basic
Vertically, essentially linear direction is lifted.
Each main guide wheel group 221 is fixed on lifting frame matrix 210.
When there is secondary track 122, guide wheel group 220 should also include several secondary guide wheel groups 222.
Each pair guide wheel group 222 is engaged with secondary track 122 respectively, while each secondary guide wheel group 222 is fixed on liter
Drop on frame matrix 210.
Preferably, each main orbit 121, secondary track 122 can use U-type groove steel or I-shaped channel steel, it is each leading
To wheel group 221 and secondary guide wheel group 222 common steel wheel can be used to coordinate ball bearing or roller bearing and corresponding
Connector, supporting structure are realized, so as to further reduce the cost, improve system reliability and stability.
For ease of the transport and protection of small speck product, prevent non-permitted article from flying out, and the non-permitted article of prevention is flown into,
The security and protective capacities of lifting gear are effectively improved, the lifting frame protection network 230 can use a variety of protection iron nets
And it is fixedly connected on the lifting frame matrix 210.
The driving device 300 is mainly used for driving lifting frame 200 relative to 100 vertical lifting of basic framework, its bag
Include hydraulic circuit components 310, hydraulic pressure cylinder assembly 320, manipulation unit 330 etc..
The manipulation unit 330 is mainly that operating personnel provide the man-machine of control lifting gear especially driving device 300
Interactive function.The manipulation unit 330 can have diversified forms.
For example, the manipulation unit 330 can use button control form, then the manipulation unit 330 is pressed including rising
Button, declines button, stop botton, power-off button and necessary all kinds of circuit units etc..
For example, the manipulation unit 330 can use handle control form, then the manipulation unit 330 includes manipulator
Handle and necessary all kinds of circuit units etc..
The operation handle can realize the functions such as rising, decline, shutdown, shutdown.
The circuit unit mainly includes all kinds of common electronics components needed for by the conversion of control action signal, transmission etc.
And cable etc..
The hydraulic circuit components 310 include oil supply unit 311, hydraulic valve, oil pipe etc..
The oil supply unit 311 includes hydraulic oil container, hydraulic pump, oil filter etc..
Preferably, the oil supply unit 311 can also select the hydraulic station products substitution of globality.
The hydraulic valve includes overflow valve, throttle valve, reversal valve etc..
The oil pipe is used to connect the hydraulic valve and oil supply unit, realizes hydraulic oil in the hydraulic circuit components
Flow and do not spill over the hydraulic circuit components.
Further to prevent hydraulic oil from overflowing or revealing, the hydraulic circuit components 310 should also configure corresponding gasket
Circle.
The hydraulic pressure cylinder assembly 320 includes two sets of hydraulic drive units i.e. the first hydraulic drive unit 301 and the second hydraulic pressure
Driving unit 302.
As shown in figure 5, first hydraulic drive unit 301 is mainly solid including first hydraulic cylinder 321, first hydraulic cylinder
Determine portion's connection component 322 and first hydraulic cylinder move portion connection component 323.
First hydraulic drive unit 301 is broadly divided into the first hydraulic-driven fixation kit 301A and the first hydraulic pressure drives
Dynamic moving assembly 301B two large divisions.
The first hydraulic-driven fixation kit 301A is all relatively basic frames in the first hydraulic drive unit 301
100 parts remained stationary, including the pedestal 321-1 of first hydraulic cylinder 321, end cap 321-2, sealing element and first
Hydraulic cylinder fixed part connection component 322 etc..
The first hydraulic cylinder fixed part connection component 322 connects according to first hydraulic cylinder 321 and the fixed of basic framework 100
Depending on connecing form.
For example, first hydraulic cylinder 321 is fixedly connected with basic framework 100 by transition connecting plate and four threaded connections,
Then first hydraulic cylinder fixed part connection component 322 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
For another example, first hydraulic cylinder 321 is threadedly coupled by ground connecting plate and four and is directly fixedly connected with ground, into
And be fixedly connected indirectly with basic framework 100, then first hydraulic cylinder fixed part connection component 322 include ground connecting plate, four
Bolt, four nuts, four gaskets and four spring washers etc..
The first hydraulic-driven moving assembly 301B is all relatively basic frames in the first hydraulic drive unit 301
100 lifting movings, 200 fixed parts of OQ t frame, include piston 321-3, the piston of first hydraulic cylinder 321
Bar 321-4 and first hydraulic cylinder move portion connection component 323 etc..
The first hydraulic cylinder move portion connection component 323 connects according to first hydraulic cylinder 321 and the fixed of lifting frame 200
Depending on connecing form.
For example, first hydraulic cylinder 321 is fixedly connected with lifting frame 200 by transition connecting plate and four threaded connections,
Then first hydraulic cylinder move portion connection component 323 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
Preferably, it is identical with the first hydraulic drive unit, as shown in fig. 6, second hydraulic drive unit 302 is led
To include second hydraulic cylinder 324, second hydraulic cylinder fixed part connection component 325 and second hydraulic cylinder move portion connection component 326.
Second hydraulic drive unit 302 is broadly divided into the second hydraulic-driven fixation kit 302A and the second hydraulic pressure drives
Dynamic moving assembly 302B two large divisions.
The second hydraulic-driven fixation kit 302A is all relatively basic frames in the second hydraulic drive unit 302
100 parts remained stationary, including the pedestal 324-1 of second hydraulic cylinder 324, end cap 324-2, sealing element and second
Hydraulic cylinder fixed part connection component 325 etc..
The second hydraulic cylinder fixed part connection component 325 connects according to second hydraulic cylinder 324 and the fixed of basic framework 100
Depending on connecing form.
For example, second hydraulic cylinder 324 is fixedly connected with basic framework 100 by transition connecting plate and four threaded connections,
Then second hydraulic cylinder fixed part connection component 325 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
For another example, second hydraulic cylinder 324 is threadedly coupled by ground connecting plate and four and is directly fixedly connected with ground, into
And be fixedly connected indirectly with basic framework 100, then second hydraulic cylinder fixed part connection component 325 include ground connecting plate, four
Bolt, four nuts, four gaskets and four spring washers etc..
The second hydraulic-driven moving assembly 302B is all relatively basic frames in the second hydraulic drive unit 302
100 lifting movings, 200 fixed parts of OQ t frame, include piston 324-3, the piston of second hydraulic cylinder 324
Bar 324-4 and second hydraulic cylinder move portion connection component 326 etc..
The second hydraulic cylinder move portion connection component 326 connects according to second hydraulic cylinder 324 and the fixed of lifting frame 200
Depending on connecing form.
For example, second hydraulic cylinder 324 is fixedly connected with lifting frame 200 by transition connecting plate and four threaded connections,
Then second hydraulic cylinder move portion connection component 326 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
The first hydraulic-driven fixation kit 301A, the second hydraulic-driven fixation kit 302A and basic framework 100 are solid
Fixed connection, the basic framework 100 are fixedly connected with the ground, and the first hydraulic-driven moving assembly 301B, the second hydraulic pressure drive
Dynamic moving assembly 302B is fixedly connected with lifting frame 200.
In addition, another installation fixed form can also be the first hydraulic-driven fixation kit 301A, the second hydraulic pressure
Driving fixation kit 302A, basic framework 100 are fixedly connected with the ground.
Preferably, for make lifting frame 200 in lifting process more preferable holding level without tilt, while simplify liter
Design, structure and the manufacture of falling unit, reduce cost, 301 and second hydraulic drive unit 302 of the first hydraulic drive unit
It is symmetrical set, and the first hydraulic drive unit 301 and the second hydraulic drive unit 302 have identical performance, ginseng
Number and size.
When implementing the lifting gear particularly for large lift height according to the method described above, 301 He of the first hydraulic drive unit
Second hydraulic drive unit 302 is easily different because of small hydraulic oil leakage, foozle, hydraulic component loss etc.
Step, and then cause lifting frame 200 to tilt, particularly near target mesa 140.
When in use, above-mentioned tilt problem will cause material disengaging lifting frame 200 there are difficulty to user, to using and give birth to
Production is made troubles.
By using high-precision hydraulic valve, high uniformity hydraulic cylinder the methods of can improve liter to a certain extent
The inclined degree of frame 200 drops, but with the increase of number of use, 200 inclined degree of lifting frame easily runs down, it is different
Step problem is easily as hydraulic component is lost, the leakage of oil cylinder or oil pipe and the problems such as hydraulic circuit poor sealing are gradually serious.
To those skilled in the art, can be with by improving hydraulic circuit or improving hydraulic circuit installation adjusting method
Allow lifting frame 200 to reach the run-off the straight nearby of target mesa 140 only under propradation, and returned under decline state initial
The not run-off the straight nearby of table top 130, can also be such that lifting frame 200 is reached only under decline state and incline near target mesa
Tiltedly, and under propradation not run-off the straight near initial table top 130 is returned to.Thus, the prior art can send out tilt problem
Raw probability reduces by 50%, but still cannot thoroughly solve tilt problem.
Effectively to overcome above-mentioned deficiency, the present invention sets the 3rd hydraulic pressure to drive between lifting frame 200 and basic framework 100
Moving cell 303.
As shown in fig. 7, the 3rd hydraulic drive unit 303 mainly includes the 3rd hydraulic cylinder 327, the 3rd hydraulic cylinder is consolidated
Determine 328 and the 3rd hydraulic cylinder move portion connection component 329 of portion's connection component.
3rd hydraulic drive unit 303 is broadly divided into the 3rd hydraulic-driven fixation kit 303A and the 3rd hydraulic pressure drives
Dynamic moving assembly 303B two large divisions.
To simplify system, cost is reduced, preferably, the first hydraulic drive unit 301, the second hydraulic drive unit 302
There is identical performance and size with the 3rd hydraulic drive unit 303.
To make the force application location of the 3rd hydraulic drive unit 303 and the first hydraulic drive unit 301 or the second hydraulic-driven
The force application location of unit 302 is identical, so as to substantially reduce inclination new caused by the extra torsion during adjustment, and reduces
The inside of lifting gear contradicts, and the stability and service life of lifting gear is improved, preferably, the 3rd hydraulic-driven list
Member 303 hydraulic cylinder it is coaxial with the hydraulic cylinder of 301 or second hydraulic drive unit 302 of the first hydraulic drive unit or
Collinearly.
To simplify system, cost is reduced, and make the force application location and the first hydraulic-driven list of the 3rd hydraulic drive unit 303
The force application location of 301 or second hydraulic drive unit 302 of member is identical, preferably, the 3rd hydraulic-driven fixation kit
303A is fixedly connected with the top of basic framework 100, and the 3rd hydraulic-driven moving assembly 303B is solid with the lifting frame 200
Fixed connection.
The 3rd hydraulic-driven moving assembly 303B is all relatively basic frames in the 3rd hydraulic drive unit 303
100 lifting movings, 200 fixed parts of OQ t frame, include pedestal 327-1, the end cap of the 3rd hydraulic cylinder 327
327-2, sealing element and the 3rd hydraulic cylinder move portion connection component 328 etc..
The 3rd hydraulic cylinder move portion connection component 328 connects according to the 3rd hydraulic cylinder 327 and the fixed of lifting frame 200
Depending on connecing form.
For example, the 3rd hydraulic cylinder 327 is fixedly connected with lifting frame 200 by transition connecting plate and four threaded connections,
Then the 3rd hydraulic cylinder move portion connection component 328 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
The 3rd hydraulic-driven fixation kit 303A is all relatively basic frames in the 3rd hydraulic drive unit 303
100 parts remained stationary, including the piston 327-3 of the 3rd hydraulic cylinder 327, piston rod 327-4 and the 3rd hydraulic cylinder
Fixed part connection component 329 etc..
The 3rd hydraulic cylinder fixed part connection component 329 connects according to the 3rd hydraulic cylinder 327 and the fixed of basic framework 100
Depending on connecing form.
For example, the 3rd hydraulic cylinder 327 is fixedly connected with basic framework 100 by transition connecting plate and four threaded connections,
Then the 3rd hydraulic cylinder fixed part connection component 329 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
Correspondingly, after the 3rd hydraulic drive unit 303 of increase, manipulation unit 330 should increase corresponding human-computer interaction function,
Particularly control the human-computer interaction function of the 3rd hydraulic drive unit 303.
Preferably, manipulation unit 330 can increase adjustment start button, adjustment two buttons of X button, or increase
Rise adjustment start button, decline adjustment start button, adjustment X button totally three buttons.
If manipulating unit 330 uses handle control form, operation handle can realize that adjustment starts, work(is closed in adjustment
Can, or realize that rising adjustment starts, declines adjustment and start, adjust and close totally three functions.
Since tilt problem probability of happening can be reduced to 50% by the prior art, preferably, the present invention considers to the greatest extent first
Amount reduces the frequency of usage of the 3rd hydraulic drive unit 303, and then strengthens the convenience and simplicity of operation.It is in this way, of the invention
3rd hydraulic drive unit 303 is arranged in 301 and second hydraulic drive unit 302 of the first hydraulic drive unit
Pose of a relatively high side when the i.e. described lifting frame 200 of hysteresis tilts is less likely to occur.
For example, the of a relatively high side of pose is the one of the place of the first hydraulic drive unit 301 when lifting frame 200 tilts
The side, might as well be set to left side, then the 3rd hydraulic drive unit 303 is arranged at 301 homonymy of the first hydraulic drive unit by side.This
When, can be by the 301 coaxial setting of the 3rd hydraulic drive unit 303 and the first hydraulic drive unit.
To strengthen lifting gear stability, simplify structure, reduce cost, and effectively improve lifting gear drive efficiency and drive
Dynamic effect, preferably, the 3rd hydraulic drive unit 303 and the first hydraulic drive unit 301 coaxial or collinearly set are overall
Medium position positioned at the left side of lifting frame 200, and the 3rd hydraulic drive unit 303 and the first hydraulic drive unit 301 are common
Axis or it is conllinear where rectilinear direction, should be with the two main orbit 121A1 and 121A2 of left side main orbit group 121A (or right side backbone
The two main orbit 121B1 and 121B2 of road group 121B) side by side where rectilinear direction it is parallel.The 3rd liquid can be obtained under the position
Press the best position of driving unit 303.
To be manipulated to the 3rd hydraulic drive unit 303, another independent manipulation unit 340 can be increased.
But to be cost-effective, reduction manipulation complexity, increase manipulates convenience and security, preferably, the manipulation
Unit 330 includes rising adjustment and starts function, declines adjustment beginning function and adjustment closing function, can be opened by rising adjustment
Beginning function, decline adjustment start function and adjustment closing function manipulates the 3rd hydraulic drive unit 303.
Preferably, the adjustment beginning function that rises is implemented by rising adjustment start button, rise when pressing
After adjusting start button, the first hydraulic drive unit 301 and the second hydraulic drive unit 302 fail and keep at the same time at the same time
Respective hydraulic cylinder in-cylinder pressure is constant and active force is constant, and the 3rd hydraulic drive unit 303 produces upward active force and promotes institute
Lifting frame 200 is stated to rise.
Preferably, the adjustment beginning function that declines is implemented by decline adjustment start button, decline when pressing
After adjusting start button, the first hydraulic drive unit 301 and the second hydraulic drive unit 302 fail and keep at the same time at the same time
Respective hydraulic cylinder in-cylinder pressure is constant and active force is constant, and the 3rd hydraulic drive unit 303 acts power and overcomes load weight
Power and decline lifting frame 200.
Preferably, the adjustment closing function implements by adjusting X button, when pressing adjustment X button
Afterwards, the 3rd hydraulic drive unit 303 fails and keeps in-cylinder pressure constant.
In actual use, site operation personnel has found that 200 inclined degree of lifting frame is larger and then influences material
During disengaging operation, rising adjustment start button can be pressed or decline adjustment start button, then 301 He of the first hydraulic drive unit
Second hydraulic drive unit 302 fail at the same time and keep respective hydraulic cylinder in-cylinder pressure constant at the same time and active force not
Become, the 3rd hydraulic drive unit 303 starts to drive the hysteresis of lifting frame 200 side to continue slowly to move to target mesa.Work as liter
After drop 200 inclined degree of frame meets the requirements, site operation personnel presses adjustment X button, then the 3rd hydraulic drive unit
303 fail and keep in-cylinder pressure constant, 200 remains stationary state of lifting frame and inclined degree meets the requirements.
Obviously, using above-mentioned operating personnel's manual operation method, the live load of operating personnel is easily increased, it is necessary to right
Operating personnel carry out special training, and more demanding to operator quality, operating personnel's maloperation risk is also higher.
Effectively to reduce operating personnel's maloperation risk, automatic leveling is realized, driving device 300 of the present invention further includes
Some table top sensors, the table top sensor are used to detect whether certain side of lifting frame 200 reaches respective mesa；Described
Face sensor includes table top sensor fixing assembly and table top sensor moving assembly.
Preferably, the table top sensor can be linear grating ruler, straight line magnetic railings ruler, photoelectric proximity switch, OK
Cheng Kaiguan etc..
The table top sensor fixing assembly includes all fixed parts of table top sensor, is such as fixedly mounted
In pedestal of fixed structure etc..
The table top sensor moving assembly includes all parts moved with moving component of table top sensor.
The fixation kit and moving assembly of certain specifically chosen table top sensor, technical staff according to the principle of sensor and
Structure easily voluntarily confirms and differentiates.
The first automatic leveling scheme is, in 301 and second hydraulic drive unit 302 of the first hydraulic drive unit more
Pose relatively low side when hysteresis, that is, lifting frame 200 tilts easily occurs the first table top of target mesa is set
Sensor, the table top sensor fixing assembly of the first table top of target mesa sensor are fixedly connected with basic framework 100, institute
The table top sensor moving assembly for stating target mesa the first table top sensor is fixedly connected with lifting frame 200.
Second of automatic leveling scheme is that the left and right sides of the lifting gear sets the first table top of target mesa to pass respectively
Sensor and target mesa the second table top sensor, target mesa the first table top sensor and the second table top of the target mesa sensing
The table top sensor fixing assembly of device is fixedly connected with basic framework 100 respectively, target mesa the first table top sensor and
The table top sensor moving assembly of target mesa the second table top sensor is fixedly connected with lifting frame 200 respectively；The lifting
The left and right sides of device sets initial table top the first table top sensor and initial table top the second table top sensor respectively, described initial
The table top sensor fixing assembly of table top the first table top sensor and initial table top the second table top sensor respectively with basic framework
100 are fixedly connected, and the table top sensor of initial table top the first table top sensor and initial table top the second table top sensor moves
Dynamic component is fixedly connected with lifting frame 200 respectively.
In second of automatic leveling scheme, to simplify structure and design, 200 inclined degree of lifting frame is further improved
The precision and reliability of detection, preferably, the target mesa the first table top sensor and the second table top of target mesa sensing
Device is is symmetrical set, and the target mesa the first table top sensor and target mesa the second table top sensor are located at respectively
The 200 left side immediate vicinity of lifting frame and right edge immediate vicinity；Initial table top the first table top sensor and just
The second table top of beginning table top sensor is is symmetrical set, and initial table top the first table top sensor and initial table top second
Table top sensor is located at the 200 left side immediate vicinity of lifting frame and right edge immediate vicinity respectively.
When the lifting gear described to above-described embodiment carries out actual implementation, those skilled in the art can use a variety of
Installation adjusting method, and correlation technique is more mature.Only describe below in technical solution of the present invention with existing mounting and adjusting skill
Art has visibly different substantive content.
To improve mounting and adjusting efficiency and actual effect, simplify mounting and adjusting technique, mounting and adjusting cost is reduced, as excellent
Choosing, for the present invention during the lifting gear described to above-described embodiment carries out installation and debugging, emphasis completes the basic subrack
After 200 installation and debugging of frame 100 and lifting frame, 301 and second hydraulic-driven of the first hydraulic drive unit is completed first
The installation and debugging of unit 302, it is complete in 301 and second hydraulic drive unit of the first hydraulic drive unit, 302 installation and debugging
Cheng Hou, then complete the installation and debugging of the 3rd hydraulic drive unit 303.
For accurate, quick, inexpensive definite first hydraulic drive unit, 301 and second hydraulic drive unit 302
In be easier that pose relatively low side when the hysteresis, that is, lifting frame 200 tilts occurs, carrying out described first
It is reciprocal by lifting more than twice during the installation and debugging of 301 and second hydraulic drive unit 302 of hydraulic drive unit
Operation, reviews and validate and is easier to occur hysteresis in 301 and second hydraulic drive unit 302 of the first hydraulic drive unit now
As being pose relatively low side when the lifting frame 200 tilts.Correspondingly, what hysteresis was less likely to occur is institute
State pose of a relatively high side when lifting frame tilts.
The accuracy of the relatively low side of pose and efficiency when judging that lifting frame 200 tilts to further improve, as
It is preferred that in lifting reciprocating working every time, quality (or weight) and lifting gear nominal load should be put into lifting frame 200
(or maximum allowable load) almost equal equivalent article.
Determine that installation personnel is according to the 3rd hydraulic-driven list when lifting frame 200 tilts behind the relatively low side of pose
The best position of member 303 carries out the technique such as drilling, tapping or welding accordingly, so as to complete the 3rd hydraulic drive unit
303 installation.
To further improve the stationarity of lifting gear and usage experience, lifting frame 200 is reduced to greatest extent and is tilted
Probability, preferably, during the installation and debugging of the 3rd hydraulic drive unit 303 are carried out, the 3rd hydraulic pressure drives
The installation of moving cell 303 should meet following condition with adjustment：First hydraulic drive unit 301, the second hydraulic drive unit
302 and the 3rd hydraulic drive unit 303 be respectively mounted completion and the tightening of related fittings whole or locking after, the lifting frame
200 200 integral levels of lifting frame when being located at extreme lower position or a small amount of inclination only allowed.A small amount of inclination of the permission
That is the allowed band for the tilt quantity that lifting frame 200 occurs, total 200 adjustable height of lifting frame 50 to ten/1000ths very much
One of between.The tilt quantity refers to the maximum position deviation of 200 left and right sides in the vertical direction of lifting frame.
Preferably, what is allowed is tilted in one thousandth between five one thousandths on a small quantity.For example, it is 4m in adjustable height
When, it is allowed to maximum inclination can be 4mm, 3.8mm, 3.6mm, 3.5mm, 3.4mm, 3.2mm, 3mm, 2.8mm, 2.6mm,
2.5mm、2.4mm、2.2mm、2.1mm、2mm、1.8mm、1.6mm、1.5mm、1.4mm、1.2mm、1.0mm、0.9mm、0.8mm
Deng.
There is another installation adjusting method for considering, i.e., do not review and validate first hydraulic drive unit 301 and the
It is easier that pose is relatively low when hysteresis, that is, lifting frame 200 tilts one occurs in two hydraulic drive units 302
Side, and the 3rd hydraulic drive unit 303 is directly installed on the first hydraulic drive unit 301 and the second hydraulic drive unit 302
In any side.This mode can greatly simplify installation process and mounting process, without influencing the technology of the present invention side
The specific implementation of case.
To the first automatic leveling structure, when installing table top sensor, the table top sensor detects lifting frame
200 position is target mesa accurate location, or and lifting frame 200 accurate target mesa position deviation it is not high
In a small amount of tilt quantity of foregoing permission, i.e. the table top sensor detects that the position of lifting frame 200 should be lifting frame
The 200 corresponding positions in higher side when tilting every time.
To the first automatic leveling structure, during mounting and adjusting, it is necessary to by lifting reciprocating working more than twice,
Review and validate a distance D1 set in advance.Distance D1 is the actual tilt amount that lifting frame 200 occurs.It is somebody's turn to do
After distance D1, according to the speed of the hydraulic cylinder of the 3rd hydraulic drive unit 303, a time set in advance can be obtained
T1.By actual T1, the move distance of lifting frame 200 is the actual tilt amount that lifting frame 200 occurs.Obtained distance D1
Or time T1, it should be saved into driving device 300.
To second of automatic leveling structure, when installing table top sensor, a variety of adjustment modes can be used to ensure same
The corresponding two table tops sensor same area of table top is in same level, such as level meter detection adjusting method.Meanwhile should also
Ensure that the two corresponding test positions of table top sensor are the accurate target mesa positions of lifting frame 200 by mounting and adjusting
Put, or and lifting frame 200 accurate target mesa position deviation be not higher than foregoing permission a small amount of tilt quantity.
To above-mentioned lifting gear, operating personnel make first hydraulic drive unit 301 and second by manipulating unit 330
Hydraulic drive unit 302 act at the same time power driving lifting frame 200 rise and close to target mesa 140, described at this time the
Three hydraulic drive units 303 do not work and do not produce driving force.
When the lifting frame 200 needs to drop near initial table top 130, operating personnel are by manipulating unit 330
Adjustment X button makes the 3rd hydraulic drive unit 303 not work and does not produce driving force, then is made by manipulating unit 330
First hydraulic drive unit, 301 and second hydraulic drive unit 302 produces certain effect power and overcomes load gravity to make at the same time
Lifting frame 200 declines and close to the i.e. initial table top 130 of target mesa.During decline, preferably, the first hydraulic-driven
301 and second hydraulic drive unit 302 of unit can make hydraulic oil in respective hydraulic cylinder be back to hydraulic oil through corresponding reversal valve
Case.
In 200 process of rising or falling of lifting frame, when any table top sensor detects the lifting frame
When 200 sides reach a certain table top, the driving device 300 makes first hydraulic drive unit by corresponding hydraulic circuit
301 and second hydraulic drive unit 302 fail at the same time and keep respective hydraulic cylinder in-cylinder pressure constant at the same time and act on
Power is constant, and acts the 3rd hydraulic drive unit 303 and push the dynamic lifting frame 200 and move so as to lift frame
The tilt quantity of frame 200 reaches allowed band.
3rd hydraulic drive unit 303, which acts power, to be made in 200 motion process of lifting frame, if opposite side
It is provided with table top sensor and when the sensor detects that described side of lifting frame 200 reaches a certain table top, the driving dress
Put 300 makes the 3rd hydraulic drive unit 303 fail and keeps the 3rd hydraulic pressure to drive by corresponding hydraulic circuit
The hydraulic cylinder in-cylinder pressure of moving cell 303 is constant and active force is constant；If opposite side is not provided with table top sensor, the drive
Dynamic device 300 by corresponding hydraulic circuit make the 3rd hydraulic drive unit 303 move a period of time set in advance or
After a distance, the driving device 300 makes the 3rd hydraulic drive unit 303 fail by corresponding hydraulic circuit
And keep that the hydraulic cylinder in-cylinder pressure of the 3rd hydraulic drive unit 303 is constant and active force is constant.
In the first automatic leveling structure, if lifting frame 200 rises, the detection of the first table top of target mesa sensor
When reaching target mesa to described side of lifting frame 200, the driving device 300 makes described the by corresponding hydraulic circuit
One hydraulic drive unit 301 and the second hydraulic drive unit 302 fail and keep respective hydraulic cylinder internal pressure at the same time at the same time
Power is constant and active force is constant, and acts the 3rd hydraulic drive unit 303 and push the dynamic lifting frame 200
Continue up so that the tilt quantity of lifting frame 200 reaches allowed band.Process is continued up in lifting frame 200
In, the driving device 300 by corresponding hydraulic circuit make the 3rd hydraulic drive unit 303 move T1 times or D1 away from
From rear, the driving device 300 makes the 3rd hydraulic drive unit 303 fail and keeps by corresponding hydraulic circuit
The hydraulic cylinder in-cylinder pressure of 3rd hydraulic drive unit 303 is constant and active force is constant.
In the first automatic leveling structure, if lifting frame 200 declines, a kind of situation is that lifting frame 200 is initial
Plane is nearby that not inclined or tilt quantity is no more than allowed band, accordingly, it is not necessary to set initial the first table top of table top to sense
Device；Another situation is that lifting frame 200 is inclined near initial plane, then needs at the bottom of the basic framework 100
Initial the first table top of the table top sensor of homonymy setting with target mesa the first table top sensor in portion, the initial table top first
The table top sensor fixing assembly of table top sensor is fixedly connected with basic framework 100, the initial table top the first table top sensing
The table top sensor moving assembly of device is fixedly connected with lifting frame 200.Similar to lifting frame in the first automatic leveling structure
The application method and working mechanism, lifting gear that frame 200 rises can also realize automatic leveling.
In second of automatic leveling structure, if lifting frame 200 rises, the detection of the first table top of target mesa sensor
When reaching target mesa to described side of lifting frame 200, the driving device 300 makes described the by corresponding hydraulic circuit
One hydraulic drive unit 301 and the second hydraulic drive unit 302 fail and keep respective hydraulic cylinder internal pressure at the same time at the same time
Power is constant and active force is constant, and acts the 3rd hydraulic drive unit 303 and push the dynamic lifting frame 200
Continue up so that the tilt quantity of lifting frame 200 reaches allowed band.Process is continued up in lifting frame 200
In, if target mesa the second table top sensor of opposite side detects that described side of lifting frame 200 reaches corresponding Target Station
During face, the driving device 300 makes the 3rd hydraulic drive unit 303 fail and keeps by corresponding hydraulic circuit
The hydraulic cylinder in-cylinder pressure of 3rd hydraulic drive unit 303 is constant and active force is constant.
In second of automatic leveling structure, if lifting frame 200 declines, a kind of situation is that lifting frame 200 is initial
Plane is nearby that not inclined or tilt quantity is no more than allowed band, accordingly, it is not necessary to set initial the first table top of table top to sense
Device and initial table top the second table top sensor；Another situation is, lifting frame 200 be near initial plane it is inclined, then
Need to set initial table top the first table top sensor and initial table top respectively in the left and right sides of the bottom of the basic framework 100
Second table top sensor, the table top sensor of initial table top the first table top sensor and initial table top the second table top sensor
Fixation kit is fixedly connected with basic framework 100 respectively, initial table top the first table top sensor and initial table top second
The table top sensor moving assembly of face sensor is fixedly connected with lifting frame 200 respectively.Similar to second of automatic leveling knot
The application method and working mechanism, lifting gear that lifting frame 200 rises in structure can also realize automatic leveling.
It is emphasized that in the specification and claims of the present invention, on target mesa, the concept of initial table top
It is opposite, when one plane of selection is initial table top, another plane is target mesa.Meanwhile there may be multiple for lifting gear
Target mesa, for the present invention for ease of stating, " target mesa " involved in each technical characteristic can be any one target mesa,
Real protection without influencing the present invention is intended to or protection domain.
The conventional methods such as improvement hydraulic circuit or high-precision hydraulic circuit different from the prior art realize lifting frame 200
Remain synchronous in lifting process and make the real-time synchronization technique of 200 not run-off the straight of lifting frame, technology of the invention
Thinking is, ignores the asynchronous problem of hydraulic cylinder in 200 lifting process of lifting frame using end simultaneous techniques and only protects
Card lifting frame 200 is reached home the end synchronous regime of neighbouring position.
The technical thought of this end synchronization is very useful in practical operation, is carried to solve the problems, such as that lifting gear is asynchronous
A kind of brand-new technical thought is supplied.
On the one hand, the lifting gear of large lift height is in lifting process, and with being continuously increased for adjustable height, hydraulic pressure returns
Any small leakage, foozle, component loss etc. are all easy to cause the continuous amplification of the asynchronous problem of hydraulic cylinder in road,
According to real-time synchronization thinking, then it is easy to greatly increase cost, reduces system service life and stability, and uses end
The synchronous thinking in end, then can ignore the asynchronous problem in lifting process, system cost can be reduced effectively, system service life
It can be fully guaranteed with stability.
On the one hand, whether synchronously user of service often only focuses on end, because this relation when operation controls lifting gear
Lifting frame 200 can be conveniently passed in and out to material, and is not concerned with that a small amount of inclination or asynchronous whether occurs in lifting process, because
For a small amount of inclination or it is asynchronous will not produce any influence, also tend to not noticeable, it is clear that real-time synchronization technique have ignored this
True use demand in one actual mechanical process, and end simultaneous techniques meets this true use demand well, because
And present invention solves the technical problem that essence is the asynchronous problem in end, and the prior art based on real-time synchronization technique solves
Technical problem be substantially whole asynchronous problem.
Particularly, the present invention realizes that the automatic of lifting frame 200 is adjusted by table top sensor and corresponding driving device 300
It is flat, the live load of operating personnel can be effectively reduced, is not required to carry out special training to operating personnel, will to operator quality
Ask relatively low, operating personnel's maloperation risk is also very low.
Particularly, hydraulic cylinder and first hydraulic-driven of the present invention by the 3rd hydraulic drive unit 303
The hydraulic cylinder of 301 or second hydraulic drive unit 302 of unit is coaxial or collinear structure, can make the 3rd hydraulic drive unit
303 force application location is identical with the force application location of the first hydraulic drive unit 301 or the second hydraulic drive unit 302, thus can
To substantially reduce inclination new caused by the extra torsion during adjustment, and the inside for reducing lifting gear contradicts, and improves
The stability and service life of lifting gear.
Particularly, the hydraulic cylinder of 3rd hydraulic drive unit 303 of the invention and first hydraulic drive unit 301 or
When the hydraulic cylinder of second hydraulic drive unit 302 is coaxial or conllinear, the first hydraulic drive unit 301, the second hydraulic-driven list
302 and the 3rd hydraulic drive unit 303 of member remains to have identical performance and size, so that exchanged beneficial to three hydraulic cylinders,
Design and manufacture beneficial to simplifying.
In addition, to the lifting gear without the 3rd hydraulic drive unit 303, when the second hydraulic drive unit 302 and/or
When one hydraulic drive unit 301 cannot act power suddenly because of hydraulic circuit fault, it is unexpected to be easy to cause lifting frame 200
Fall or excessively tilt.And the present invention is because having the 3rd hydraulic drive unit 303, in the second hydraulic drive unit 302 and/or the
When one hydraulic drive unit 301 cannot act power suddenly because of hydraulic circuit fault, it can continue to keep active force, so that
It can prevent lifting gear 200 from falling or excessively tilting suddenly, the safety and reliability of lifting gear can be further improved.
In addition, the present invention is because of the first hydraulic drive unit 301, the second hydraulic drive unit 302 and the 3rd hydraulic-driven list
Member 303 remains to have identical performance and size, and the hydraulic cylinder of the 3rd hydraulic drive unit 303 drives with first hydraulic pressure
The hydraulic cylinder of 301 or second hydraulic drive unit 302 of moving cell is coaxial or conllinear, thus even if with the 3rd hydraulic drive unit
The coaxial or conllinear hydraulic cylinder of 303 hydraulic cylinder breaks down, and lifting gear of the present invention can still pass through the 3rd hydraulic-driven
Unit 303 and another hydraulic drive unit work on.
In addition, the present invention is because of the first hydraulic drive unit 301, the second hydraulic drive unit 302 and the 3rd hydraulic-driven list
Member 303 remains to have identical performance and size, and the hydraulic cylinder of the 3rd hydraulic drive unit 303 drives with first hydraulic pressure
The hydraulic cylinder of 301 or second hydraulic drive unit 302 of moving cell is coaxial or conllinear, thus even if other two hydraulic cylinders
One of them breaks down, and lifting gear of the present invention can be replaced with the hydraulic cylinder of the 3rd hydraulic drive unit 303 and broken down
Hydraulic cylinder, so as to ensure that lifting gear of the present invention works on.
Technical scheme is described in detail in embodiment described above, it should be understood that the above is only
For the specific embodiment of the present invention, it is not intended to limit the invention, all any modifications made in the spirit of the present invention,
Supplement or similar fashion replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. lifting gear, it is characterised in that lifting frame including basic framework, for receiving live load and for making Lifting frame relative to basic framework vertical lifting driving device；The driving device is right including manipulation unit, and left and right Claim two sets of hydraulic drive units i.e. the first hydraulic drive unit and the second hydraulic drive unit set；In the lifting frame and 3rd hydraulic drive unit is set between basic framework；First hydraulic drive unit and the second hydraulic drive unit are wherein One of hydraulic cylinder and the hydraulic cylinder of the 3rd hydraulic drive unit it is coaxial or conllinear；The first hydraulic-driven list Member, the second hydraulic drive unit and the 3rd hydraulic drive unit have identical performance and size.
- 2. lifting gear according to claim 1, it is characterised in that the 3rd hydraulic drive unit includes the 3rd hydraulic pressure Drive fixation kit and the 3rd hydraulic-driven moving assembly, the 3rd hydraulic-driven fixation kit and basic framework top It is fixedly connected, the 3rd hydraulic-driven moving assembly is fixedly connected with the lifting frame；3rd hydraulic-driven is fixed Component includes the piston of the 3rd hydraulic drive unit hydraulic cylinder, piston rod etc., and the 3rd hydraulic-driven moving assembly includes The pedestal of 3rd hydraulic drive unit hydraulic cylinder, end cap, sealing element etc..
- 3. lifting gear according to claim 1, it is characterised in that the driving device further includes some table top sensings Device, the table top sensor are used to detect whether lifting frame side reaches respective mesa；The table top sensor includes platform Face sensor fixing assembly and table top sensor moving assembly.
- 4. lifting gear according to claim 1, it is characterised in that the 3rd hydraulic drive unit is located at described first It is less likely to occur pose phase when the i.e. described lifting frame of hysteresis tilts in hydraulic drive unit and the second hydraulic drive unit To higher side.
- 5. lifting gear according to claim 3, it is characterised in that first hydraulic drive unit and the second hydraulic pressure drive It is easier to occur pose relatively low side when hysteresis, that is, lifting frame tilts in moving cell and target mesa is set First table top sensor, the table top sensor fixing assembly of the first table top of target mesa sensor is fixed with basic framework to be connected Connect, the table top sensor moving assembly of the first table top of target mesa sensor is fixedly connected with lifting frame.
- 6. lifting gear according to claim 3, it is characterised in that the left and right sides of the lifting gear sets mesh respectively Mark table top the first table top sensor and target mesa the second table top sensor, target mesa the first table top sensor and target The table top sensor fixing assembly of table top the second table top sensor is fixedly connected with basic framework respectively, the target mesa first The table top sensor moving assembly of table top sensor and target mesa the second table top sensor is fixedly connected with lifting frame respectively； The left and right sides of the lifting gear sets initial table top the first table top sensor and initial table top the second table top sensor respectively, The table top sensor fixing assembly of initial table top the first table top sensor and initial table top the second table top sensor respectively with Basic framework is fixedly connected, the table top sensing of initial table top the first table top sensor and initial table top the second table top sensor Device moving assembly is fixedly connected with lifting frame respectively.
- 7. lifting gear according to claim 6, it is characterised in that target mesa the first table top sensor and target The second table top of table top sensor is is symmetrical set, and the target mesa the first table top sensor and target mesa second Face sensor is located at the lifting frame left side immediate vicinity and right edge immediate vicinity respectively；The initial table top First Face sensor and the second table top of initial table top sensor to be symmetrical set, and initial table top the first table top sensor and Initial the second table top of table top sensor is located at the lifting frame left side immediate vicinity and right edge immediate vicinity respectively.
- 8. a kind of installation adjusting method of lifting gear as described in any claim in claim 1 to 7, its feature exist In after the basic framework and lifting frame installation and debugging are completed, completing first hydraulic drive unit and the first The installation and debugging of two hydraulic drive units, it is complete in first hydraulic drive unit and the second hydraulic drive unit installation and debugging Cheng Hou, then complete the installation and debugging of the 3rd hydraulic drive unit.
- A kind of 9. lifting gear as described in any claim in claim 3 to 7, it is characterised in that any table top When sensor detects that the lifting frame side reaches a certain table top, the driving device makes first hydraulic drive unit Fail at the same time with the second hydraulic drive unit and keep that respective hydraulic cylinder in-cylinder pressure is constant and active force is constant at the same time, And act the 3rd hydraulic drive unit and push the dynamic lifting frame movement so that the tilt quantity of lifting frame reaches To allowed band.
- 10. a kind of lifting gear as claimed in claim 9, it is characterised in that the 3rd hydraulic drive unit acts Power makes in the lifting frame motion process, if opposite side is provided with table top sensor and the sensor detects the lifting frame When the frame side reaches a certain table top, the driving device makes the 3rd hydraulic drive unit fail and keeps the described 3rd The hydraulic cylinder in-cylinder pressure of hydraulic drive unit is constant and active force is constant；If opposite side is not provided with table top sensor, institute After stating driving device and the 3rd hydraulic drive unit is moved a period of time set in advance or a distance, the driving dress Putting makes the 3rd hydraulic drive unit fail and keeps the hydraulic cylinder in-cylinder pressure of the 3rd hydraulic drive unit not Become and active force is constant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711190137.8A CN107915168A (en) | 2017-11-24 | 2017-11-24 | The lifting gear and its installation method of the interchangeable coaxial automatic fine tuning of type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190137.8A CN107915168A (en) | 2017-11-24 | 2017-11-24 | The lifting gear and its installation method of the interchangeable coaxial automatic fine tuning of type |
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| CN107915168A true CN107915168A (en) | 2018-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901600A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic execution unit, carriage lifting system and rail vehicle |
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Application publication date: 20180417 |