CN108046161A - It is not easy to tilt and the strong lifting gear of overload capacity and its installation, application method - Google Patents
It is not easy to tilt and the strong lifting gear of overload capacity and its installation, application method Download PDFInfo
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- CN108046161A CN108046161A CN201711188950.1A CN201711188950A CN108046161A CN 108046161 A CN108046161 A CN 108046161A CN 201711188950 A CN201711188950 A CN 201711188950A CN 108046161 A CN108046161 A CN 108046161A
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- drive unit
- hydraulic drive
- lifting frame
- hydraulic
- lifting
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- 239000003921 oil Substances 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 8
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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
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
-
- 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
The present invention relates to a kind of lifting gears particularly for large lift height.It has basic framework, lifting frame and driving device；Driving device includes the first and second hydraulic drive units being symmetrical set and several table top sensors, and the table top sensor is used to detect whether lifting frame side reaches target mesa；3rd hydraulic drive unit is set between lifting frame and basic framework, the fixation kit of 3rd hydraulic drive unit is fixedly connected with the ground, the moving assembly of 3rd hydraulic drive unit is fixedly connected with lifting frame, and first, second, and third hydraulic drive unit can act power simultaneously.Since the 3rd hydraulic drive unit can be finely adjusted lifting frame in lifting frame run-off the straight, so that lifting frame is not susceptible to tilt in multiple two-way process.Simultaneously as the 3rd hydraulic drive unit can be effectively increased lifting gear normal thrust, the present invention has stronger overload capacity.
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 tools
There are a basic framework, one to be used to receive lifting frame and at least one set of live load for making lifting frame compared with 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, this is used
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 is 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 are synchronous real
Existing mode, which often relies on, improves hydraulic circuit realization synchronously, the drawback is that：Hydraulic circuit is relative complex, and synchronism is subject to various
Factor influences, such as processing and manufacturing error, leakage, and limited reliability, is still susceptible in use for some time not
Stationary problem.Such as using precision and the higher high-end hydraulic circuit of reliability, cost is relatively expensive, system stability and reliable
Property is easily influenced by poor environment or bad maintaining and substantially reduced.
On the other hand, it is known that lifting gear maximum load capability depend on hydraulic cylinder and matched hydraulic circuit
The maximum load capability of generation, maximum load-carrying capacity often immobilize, thus overload capacity is limited.Sometimes, pass
The lifting gear for being used to implement material vertical lift of system needs to overload during temporary overload or overload capacity is extremely limited, no
The interim special overload demand of user can be met.
Particularly, some users need lifting gear while with stronger overload capacity, moreover it is possible to ensure lifting frame
It is not easy to tilt in routine use, the prior art is difficult to meet this compound multiple demand.
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, rely on
Synchronous and overload can be realized without high-precision hydraulic circuit in the 3rd hydraulic drive unit added, so as to effectively avoid lifting
Frame tilts and has overload capacity.
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 compared with 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；3rd hydraulic drive unit includes
3rd hydraulic-driven fixation kit and the 3rd hydraulic-driven moving assembly, the 3rd hydraulic-driven fixation kit and ground or institute
It states basic framework to be fixedly connected, the 3rd hydraulic-driven moving assembly is fixedly connected with the lifting frame；The driving dress
Putting can make first hydraulic drive unit, the second hydraulic drive unit and the 3rd hydraulic drive unit same through the manipulation unit
When act power.
In a kind of embodiment of the embodiment described, the basic framework includes vertical column, main orbit, crossbeam
Deng；The main orbit is same component with vertical column.
In a kind of embodiment of the embodiment described, the 3rd hydraulic drive unit is located at first hydraulic pressure drive
It is relatively low to be easier to occur pose when hysteresis, that is, lifting frame tilts in moving cell and the second hydraulic drive unit
One side.
In a kind of embodiment of the embodiment described, the manipulation unit has up and down, shutdown, shutdown etc.
Operative, by operatives such as the up and down, shutdown, shutdown, the driving device can make on the lifting frame
It rises, decline or be maintained at a certain position.
In a kind of embodiment of the embodiment described, there is the manipulation unit overload to rise, overload declines, overload
Stop etc. operatives, by it is described overload rise, overload decline, overload stop etc. operatives, the driving device can make
The lifting frame overload rises, overload declines or keeps overloading in a certain position.
In a kind of embodiment of the embodiment described, first hydraulic drive unit, the second hydraulic drive unit
There is identical performance and size with the 3rd hydraulic drive unit.
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 one side of appearance.
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
In the process, the installation of the 3rd hydraulic drive unit should meet following condition with adjustment：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.
In the embodiments described, corresponding application method is also disclosed.In one embodiment of the application method,
Operating personnel make first hydraulic drive unit and the second hydraulic drive unit act simultaneously by the manipulation unit
Power driving lifting frame rises close to target mesa, and the 3rd hydraulic drive unit does not work and do not generate driving at this time
Power；If a small amount of inclination that the lifting frame only allows, operating personnel make first liquid by the manipulation unit
Pressure driving unit and the second hydraulic drive unit, which are simultaneously stopped, to be risen and the lifting frame is made to be maintained near target mesa；If
What the lifting frame occurred is tilted beyond allowed band, then operating personnel drive first hydraulic pressure by the manipulation unit
Moving cell and the second hydraulic drive unit, which are simultaneously stopped, to be acted on and keeps respective hydraulic cylinder in-cylinder pressure constant simultaneously and act on
Power is constant, and the 3rd hydraulic drive unit is made to generate upward active force, the lifting frame is promoted to continue up；When
When the inclination that the lifting frame occurs is not above allowed band, operating personnel make the 3rd liquid by the manipulation unit
Pressure driving unit fails and keeps that the hydraulic cylinder in-cylinder pressure of the 3rd hydraulic drive unit is constant and active force is constant.
In a kind of embodiment of the application method, when the lifting frame needs to drop near target mesa, behaviour
Make personnel makes the 3rd hydraulic drive unit not work and does not generate driving force by the manipulation unit, then passes through the behaviour
Control unit makes first hydraulic drive unit and the second hydraulic drive unit generate certain effect power simultaneously and gravity is overcome to make institute
State lifting frame decline and close to target mesa；If a small amount of inclination that the lifting frame only allows, operating personnel are led to
Crossing the manipulation unit makes first hydraulic drive unit and the second hydraulic drive unit be simultaneously stopped and act on and make the liter
Drop frame is maintained near target mesa；If what the lifting frame occurred is tilted beyond allowed band, operating personnel pass through
The manipulation unit makes first hydraulic drive unit and the second hydraulic drive unit is simultaneously stopped effect and while keeps each
It is constant and active force is constant from hydraulic cylinder in-cylinder pressure, and the 3rd hydraulic drive unit is made to act power and overcomes gravity
And decline the lifting frame；When the inclination that the lifting frame occurs is not above allowed band, operating personnel pass through
Manipulation unit makes the 3rd hydraulic drive unit fail and keeps the hydraulic cylinder in-cylinder pressure of the 3rd hydraulic drive unit
Constant and active force is constant.
In a kind of embodiment of the application method, the center of gravity for the live load that the lifting frame is received should be as far as possible
Close to the lifting frame bottom surface center line in the front-back direction.
In a kind of embodiment of the application method, the center of gravity for the live load that the lifting frame is received should be as far as possible
In an optimum position of the left and right directions inside the lifting frame, the optimum position and the 3rd hydraulic drive unit institute
In side in the lateral direction at a distance of 1/3rd of the lifting frame left and right directions overall width.
In another embodiment, first hydraulic drive unit and the second hydraulic drive unit have identical performance
And size, the normal thrust of the 3rd hydraulic drive unit is the N of the second hydraulic drive unit or the first hydraulic drive unit
Times, and N>1.
To another described embodiment, corresponding application method is also disclosed.In a kind of embodiment party of the application method
In formula, the center of gravity for the live load that the lifting frame is received should be as far as possible in left and right directions inside the lifting frame
One optimum position, the optimum position is with side where the 3rd hydraulic drive unit in the lateral direction at a distance of the lifting frame
1/ (N+2) of left and right directions overall width.
The conventional methods such as improvement hydraulic circuit or high-precision hydraulic circuit different from the prior art realize that lifting frame exists
It remains synchronous in lifting process and makes 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,
It according to real-time synchronization thinking, then is easy to greatly increase cost, reduces system service life and stability, and use 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
It can facilitate disengaging lifting frame to material, and be 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 generate any influence, also tend to not noticeable, it is clear that real-time synchronization technique has 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.
At the same time, required 3rd hydraulic drive unit of end simultaneous techniques of the present invention can also increase lifting gear
Lifting capacity, be more than total normal thrust that the second hydraulic drive unit and the first hydraulic drive unit generate particularly in cargo
When, lifting gear of the present invention is made still can to deliver cargo, so as to very strong overload capacity.
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 present invention is based on the end simultaneous techniques of 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 3rd hydraulic drive unit of the invention can also increase the load-carrying energy of lifting gear
Power makes lifting gear have very strong overload capacity；
3rd, the main orbit and the vertical column of basic framework of the present invention are same component, have simple in structure, part
Quantity is few, the advantages such as at low cost；
4th, the first hydraulic drive unit of the present invention, the second hydraulic drive unit and the 3rd hydraulic drive unit have phase
Same performance and size, thus, convenient for 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 of the present invention is located at first hydraulic drive unit and the second hydraulic drive unit
In be easier that pose relatively low one side when the hysteresis, that is, lifting frame tilts occurs, driven compared to the 3rd hydraulic pressure
Moving cell is located at pose relatively high one side when the lifting frame tilts, and can effectively reduce the first hydraulic drive unit and the
The long stroke of two hydraulic drive units, beneficial to saving energy consumption and cost；
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 is effectively solving the easy tilt problem of the lifting frame simultaneously
During lifting gear is made to have very strong overload capacity, can tilt lifting frame front-rear direction effectively reduces, right and left
Significantly reduce to the torsion to guide rail and pressure, so as to improve lifting gear traveling comfort, extend lifting gear
Service life.
The advantages of more than advantageous effect and other aspects, will be more clearly understood from by detailed description below in conjunction with the accompanying drawings,
Attached drawing describes the principle of the present invention by way of example.
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.
Specific embodiment
In following specific descriptions, a large amount of details are set forth providing former for the basis of 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
It specifically describes, 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..
What a kind of rack matrix 111 for consideration can be formed by including vertical column 111A, crossbeam 111B etc.
Mechanical structure, which must is fulfilled for that intensity requirement needed for lifting gear, antirust requirement, corrosion-resistant requirement etc. are various will
It asks, is mainly used for undertaking the various possible external force effects that lifting gear is subject to, while provide for lifting gear firm, reliable
Braced 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
On the one hand the intensity of basal body structure can be related personnel or object 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 sames such as the protection of use and anti-corrosive technology, installation and fixing means.
The number of tracks of main orbit 121 can suitably be adjusted according to actual demand, 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 be needed to further improve stability in lifting process, increases 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 sames such as the protection of use and anti-corrosive technology, installation and fixing means.
The number of tracks of secondary track 122 can also suitably be adjusted according to actual demand, such as 4,6 or 8 etc., so as to
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 and vertical column 111A are same
Component.It can so realize two functions of a part, i.e. the support construction 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, higher table top 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
The various requirements such as required intensity requirement, antirust requirement, corrosion-resistant requirement.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 one side of close target mesa 140, with
Just all kinds of protections etc. in cargo disengaging and lifting process.
The guide wheel group 220 include several main guide wheel groups 221, each main guide wheel group 221 respectively with main orbit
121 are engaged, and are determined along guide rail 120 always ensureing lifting frame 200 in lifting process 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 respectively with secondary track 122, while each secondary guide wheel group 222 is fixed on liter
It drops on frame matrix 210.
Preferably, U-type groove steel or I-shaped channel steel may be employed in each main orbit 121, secondary track 122, it is each leading
Common steel wheel cooperation ball bearing or roller bearing and corresponding may be employed to wheel group 221 and secondary guide wheel group 222
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 the non-permitted article non-permitted article that flies out and prevent from flying into,
The security and protective capacities of lifting gear are effectively improved, a variety of protection iron nets may be employed in the lifting frame protection network 230
And it is fixedly connected on the lifting frame matrix 210.
The driving device 300 is mainly used for driving lifting frame 200 compared with 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 has the operatives such as up and down, shutdown, shutdown, by the up and down,
Operatives, the driving devices 300 such as shutdown, shutdown can make 200 up and down of lifting frame or be maintained at a certain position
It puts.
The manipulation unit 330 can be there are many form.
For example, button control form may be employed in the manipulation unit 330, then the manipulation unit 330, which includes rising, presses
Button, declines button, stop botton, power-off button and necessary all kinds of circuit units etc..
For example, handle control form may be employed in the manipulation unit 330, 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 up and down, 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 realizes hydraulic oil in the hydraulic circuit components for connecting the hydraulic valve and oil supply unit
It flows and does 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 moving 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, pedestal 321-1, end cap 321-2, sealing element and first including first hydraulic cylinder 321
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, piston 321-3, piston including first hydraulic cylinder 321
Bar 321-4 and first hydraulic cylinder moving portion connection component 323 etc..
The first hydraulic cylinder moving 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 moving 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 moving 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, pedestal 324-1, end cap 324-2, sealing element and second including second hydraulic cylinder 324
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, piston 324-3, piston including second hydraulic cylinder 324
Bar 324-4 and second hydraulic cylinder moving portion connection component 326 etc..
The second hydraulic cylinder moving 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 moving 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 preferably holding level without tilt, while simplify rise
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 lifting frame 200 is caused 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.
It to those skilled in the art, can be with by improving hydraulic circuit or improving hydraulic circuit installation adjusting method
Lifting frame 200 is allowed to reach the run-off the straight nearby of target mesa 140 only under propradation, and is 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 moving 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.
The 3rd hydraulic-driven fixation kit 303A is all relatively basic frames in the 3rd hydraulic drive unit 303
100 parts remained stationary, pedestal 327-1, end cap 327-2, sealing element and the 3rd including the 3rd hydraulic cylinder 327
Hydraulic cylinder fixed part connection component 328 etc..
The 3rd hydraulic cylinder fixed part connection component 328 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 328 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
For another example, the 3rd hydraulic cylinder 327 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 the 3rd hydraulic cylinder fixed part connection component 328 include ground connecting plate, four
Bolt, four nuts, four gaskets and four spring washers etc..
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 piston 327-3, the piston of the 3rd hydraulic cylinder 327
Bar 327-4 and the 3rd hydraulic cylinder moving portion connection component 329 etc..
The 3rd hydraulic cylinder moving portion connection component 329 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 moving portion connection component 329 includes transition connecting plate, four bolts, four nuts, four gaskets and four
Spring washer etc..
To simplify design, manufacture and mounting and adjusting, cost is reduced, preferably, the 3rd hydraulic cylinder fixed part connects
328 and the 3rd hydraulic cylinder moving portion connection component 329 of connected components is similar to first hydraulic cylinder fixed part connection component 322 and first
Hydraulic cylinder moving portion connection component 323, and be connected with first hydraulic cylinder fixed part connection component 322 and first hydraulic cylinder moving portion
Component 323 has identical performance and size.
To simplify design, manufacture and mounting and adjusting, cost is reduced, preferably, similar to the first hydraulic drive unit 301
With the second hydraulic drive unit 302, the 3rd hydraulic-driven fixation kit 303A is fixedly connected with basic framework 100, described
Basic framework 100 is fixedly connected with the ground, and the 3rd hydraulic-driven moving assembly 303B is fixedly connected with lifting frame 200.
In addition, another installation fixed form can also be the 3rd hydraulic-driven fixation kit 303A, basic framework
100 are fixedly connected with the ground.
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.
Correspondingly, after increasing by the 3rd hydraulic drive unit 303, 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 close button or increase
Rise adjustment start button, decline adjustment start button, adjustment close button totally three buttons.
If manipulating unit 330 uses handle control form, operation handle can realize that adjustment starts, work(is closed in adjustment
It 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 enhances 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 relatively low one side when hysteresis, that is, lifting frame 200 tilts easily occurs.
For example, the relatively low one side of pose is the one of 301 place of the first hydraulic drive unit when lifting frame 200 tilts
The side might as well be set to left side by side, then the 3rd hydraulic drive unit 303 is arranged at 301 homonymy of the first hydraulic drive unit.This
When, the 3rd hydraulic drive unit 303 and the first hydraulic drive unit 301 can be arranged side by side and as close to each other as possible.
To enhance 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 that are arranged side by side are integrally located at liter
The medium position in the left side of frame 200 drops, and the 3rd hydraulic drive unit 303 and the first hydraulic drive unit 301 side by side where
Rectilinear direction, should be with the two main orbit 121A1 and 121A2 of left side main orbit group 121A (or the two of right side main orbit group 121B
A main orbit 121B1 and 121B2) side by side where rectilinear direction it is parallel.The 3rd hydraulic drive unit 303 can be obtained under the position
Best position.
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 increases manipulation 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 are simultaneously stopped and act on and keep simultaneously
Respective hydraulic cylinder in-cylinder pressure is constant and active force is constant, and the 3rd hydraulic drive unit 303 generates 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 are simultaneously stopped and act on and keep simultaneously
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 close button, when pressing adjustment close 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 be simultaneously stopped act on and keep respective hydraulic cylinder in-cylinder pressure constant simultaneously and active force not
Become, the 3rd hydraulic drive unit 303 starts that the hysteresis of lifting frame 200 one side is driven 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 close 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.
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.
301 and second hydraulic drive unit 302 of the first hydraulic drive unit is determined for accurate, quick, inexpensive
In be easier that pose relatively low one 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 is reviewed 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 one side when the lifting frame 200 tilts.
The accuracy of the relatively low one 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 one side of pose
The best position of member 303 carries out the techniques 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 for only allowing.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 of lifting frame in the vertical direction.
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, the maximum inclination of permission 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.
To the lifting gear obtained by above-mentioned mounting and adjusting, operating personnel make first liquid by manipulating unit 330
301 and second hydraulic drive unit 302 of pressure driving unit act simultaneously power driving lifting frame 200 rise and close to target
Table top 140, at this time the 3rd hydraulic drive unit 303 do not work and do not generate driving force.
When lifting frame 200 is close to target mesa 140, if a small amount of inclination that the lifting frame 200 only allows,
Operating personnel are simultaneously stopped 301 and second hydraulic drive unit 302 of the first hydraulic drive unit by manipulating unit 330
Rise and lifting frame 200 is made to be maintained near target mesa 140.
If the tilt quantity that the lifting frame 200 occurs is more than allowed band, operating personnel are by manipulating unit 330
Rising adjustment start button makes 301 and second hydraulic drive unit 302 of the first hydraulic drive unit be simultaneously stopped effect simultaneously
It keeps that respective hydraulic cylinder in-cylinder pressure is constant and active force is constant simultaneously, while produces the 3rd hydraulic drive unit 303
Raw upward active force promotes the lifting frame 200 to continue up.
When the inclination that the lifting frame 200 occurs is not above allowed band, operating personnel are by manipulating unit 330
Adjustment close button the 3rd hydraulic drive unit 303 is made to fail and keeps the liquid of the 3rd hydraulic drive unit 303
Cylinder pressure in-cylinder pressure is constant and active force is constant, and makes 200 remains stationary state of lifting frame and inclined degree meets the requirements.
When the lifting frame 200 needs to drop near initial table top 130, operating personnel are by manipulating unit 330
Adjustment close button makes the 3rd hydraulic drive unit 303 not work and does not generate driving force, then is made by manipulating unit 330
First hydraulic drive unit, 301 and second hydraulic drive unit 302 generates certain effect power and load gravity is overcome to make simultaneously
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.
If a small amount of inclination that the lifting frame 200 only allows, operating personnel by manipulate unit 330 make it is described
First hydraulic drive unit 301 and the second hydraulic drive unit 302, which are simultaneously stopped, to be declined and lifting frame 200 is made to be maintained at initial
Near table top 130.
If the tilt quantity that the lifting frame 200 occurs is more than allowed band, operating personnel are by manipulating unit 330
Declining adjustment start button makes 301 and second hydraulic drive unit 302 of the first hydraulic drive unit be simultaneously stopped effect simultaneously
It keeps that respective hydraulic cylinder in-cylinder pressure is constant and active force is constant simultaneously, while produces the 3rd hydraulic drive unit 303
Raw active force overcomes load gravity and lifting frame 200 is made to continue to move downward.
When the inclination that the lifting frame 200 occurs is not above allowed band, operating personnel are by manipulating unit 330
Adjustment close button the 3rd hydraulic drive unit 303 is made to fail and keeps the liquid of the 3rd hydraulic drive unit 303
Cylinder pressure in-cylinder pressure is constant and active force is constant, and makes 200 remains stationary state of lifting frame and inclined degree meets the requirements.
To improve the overload capacity of lifting gear, the driving device 300 can make described first through the manipulation unit 330
Hydraulic drive unit 301, the second hydraulic drive unit 302 and the 3rd hydraulic drive unit 303 act power simultaneously.
Then, the manipulation unit 330 further includes overload rising function, overload declines function and overload stops function, can
With by overload rise function, overload declines function and overload to stop function in goods weight be more than nominal load to the
Three hydraulic drive units 303, the second hydraulic drive unit 302 and the first hydraulic drive unit 301 are manipulated.
Preferably, the overload rises function combines corresponding hydraulic circuit and circuit specifically in fact by overloading rising button
It is existing, after overload rising button is pressed, the 3rd hydraulic drive unit 303, the second hydraulic drive unit 302 and the first hydraulic-driven
Unit 301 generates upward active force and the lifting frame 200 is promoted to rise simultaneously.
Preferably, the overload declines function combines corresponding hydraulic circuit and circuit specifically in fact by overloading declines button
It is existing, after overload declines button is pressed, the 3rd hydraulic drive unit 303, the second hydraulic drive unit 302 and the first hydraulic-driven
Unit 301 generates certain effect power and overcomes load gravity and decline the lifting frame 200 simultaneously.During decline, make
To be preferred, the first hydraulic drive unit 301, the second hydraulic drive unit 302 and the 3rd hydraulic drive unit 303 can be through accordingly changing
To valve hydraulic oil in respective hydraulic cylinder is made to be back to hydraulic oil container.
Preferably, the overload stops function combining corresponding hydraulic circuit and circuit specifically in fact by overloading stop button
It is existing, after overload stop button is pressed, the 3rd hydraulic drive unit 303, the second hydraulic drive unit 302 and the first hydraulic-driven
Unit 301 is simultaneously stopped effect and keeps respective in-cylinder pressure constant.
It is generated when contained cargo is overweight more than the second hydraulic drive unit 302 and the first hydraulic drive unit 301 total
During normal thrust, under normal circumstances, it can only be solved by replacing the lifting gear of bigger nominal load capacity.
And in the present embodiment, the personnel of being operated first should make cargo close to the 3rd hydraulic drive unit 303 as far as possible, so
Afterwards, overload declines button or overload rising button are pressed, you can make cargo and lifting frame 200 down or up.
After cargo reaches target mesa, after pressing overload stop button, cargo and lifting frame 200 can be made to be maintained at current
It is highly constant.
It operates and controls for ease of operating personnel, preferably, the manipulation unit 330 there is overload to rise, under overload
Drop, overload stop etc. operatives, by it is described overload rise, overload decline, overload stop etc. operatives, it is described driving dress
Putting 300 can rise the overload of lifting frame 200, overload decline or keep overloading in a certain position.
To prevent the run-off the straight in the longitudinal direction of lifting frame 200, and lifting frame 200 is effectively reduced in front-rear direction
On the center of gravity of live load received to the active force of the guide rail 120, the lifting frame 200 should be as close to institute
State 200 bottom surface of lifting frame center line in the front-back direction.
To effectively reduce torsion and pressure of the lifting frame 200 in left and right directions to guide rail, so as to improve lifting dress
Traveling comfort is put, extends the service life of lifting gear, the center of gravity for the live load that the lifting frame 200 is received should be use up
Optimum position that may be in left and right directions inside the lifting frame 200, the optimum position are driven with the 3rd hydraulic pressure
303 place side of moving cell is in the lateral direction at a distance of 1/3rd of the 200 left and right directions overall width of lifting frame.
For ease of switching to conventional sense, so that lifting gear returns to what is finely tuned by the 3rd hydraulic drive unit 303
The working condition being not easy under inclined conventional load, preferably, the manipulation unit 330 further includes overload closing function, it can
By overloading closing function lifting gear to be made to switch to conventional sense.
Preferably, the overload closing function is specifically real with reference to corresponding hydraulic circuit and circuit by overloading close button
Existing, after overload close button is pressed, the second hydraulic drive unit 302 and the first hydraulic drive unit 301 are simultaneously stopped effect
And keeping respective in-cylinder pressure constant, the 3rd hydraulic drive unit 303 fails and sheds 327 cylinder internal pressure of the 3rd hydraulic cylinder
Power.
The conventional methods such as improvement hydraulic circuit or high-precision hydraulic circuit different from the prior art realize lifting frame 200
It remains synchronous in lifting process and makes 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,
It according to real-time synchronization thinking, then is easy to greatly increase cost, reduces system service life and stability, and use 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
It can facilitate disengaging lifting frame 200 to material, and be 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 generate any influence, also tend to not noticeable, it is clear that real-time synchronization technique has 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
The technical issues of be substantially whole asynchronous problem.
Meanwhile the present invention also has overload permission ability in addition to having the function of to reduce inclination of lifting frame 200 etc., from
And when cargo is more than total normal thrust that the second hydraulic drive unit 302 and the first hydraulic drive unit 301 generate, make this hair
Bright lifting gear still can deliver cargo, have higher overload capacity.
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 due to hydraulic circuit fault, it is unexpected to be easy to cause lifting frame 200
It falls or excessively tilts.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 due to hydraulic circuit fault, it can continue to keep active force, so as to
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 has identical performance and size, thus even if one of other two hydraulic cylinders break down, the present invention rises
Falling unit can replace the hydraulic cylinder to break down with the hydraulic cylinder of the 3rd hydraulic drive unit 303, so as to ensure the present invention
Lifting gear works on.
As another embodiment, 301 and second hydraulic drive unit 302 of the first hydraulic drive unit has identical
Performance and size, the normal thrust of the 3rd hydraulic drive unit 303 is the second hydraulic drive unit 302 or the first hydraulic pressure
N times of driving unit 301, and N>1.
In other words, the performance of the 3rd hydraulic drive unit 303 and size are more than the second hydraulic drive unit 302 or the first liquid
Press driving unit 301.
More specifically, the normal thrust of the 3rd hydraulic drive unit 303 is the second hydraulic drive unit 302 or the first hydraulic pressure
1.1 times, 1.2 times, 1.3 times, 1.5 times, 1.8 times, 2.0 times, 2.2 times, 2.5 times, 2.8 times, 3.0 times etc. of driving unit 301.
In the present embodiment, unlike the application method of previous embodiment, the work of the receiving of lifting frame 200
The center of gravity of load should as far as possible in left and right directions inside the lifting frame 200 an optimum position, the optimum position with
3rd hydraulic drive unit, the 303 place side is in the lateral direction at a distance of the 200 left and right directions overall width of lifting frame
1/(N+2)。
Technical scheme is described in detail in embodiment described above, it should be understood that the above is only
For specific embodiments 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)
1. a kind of lifting gear, which is characterized in that including basic framework, for the lifting frame of receiving live load and for making
Lifting frame compared with basic framework vertical lifting driving device；The driving device includes manipulation unit and left and right pair
Claim two sets of hydraulic drive units i.e. the first hydraulic drive unit and the second hydraulic drive unit that set；In the lifting frame and
3rd hydraulic drive unit is set between basic framework；3rd hydraulic drive unit includes the 3rd hydraulic-driven fixation kit
With the 3rd hydraulic-driven moving assembly, the 3rd hydraulic-driven fixation kit is fixedly connected with ground or the basic framework,
The 3rd hydraulic-driven moving assembly is fixedly connected with the lifting frame；The driving device can make through the manipulation unit
First hydraulic drive unit, the second hydraulic drive unit and the 3rd hydraulic drive unit act power simultaneously.
2. lifting gear according to claim 1, which is characterized in that the 3rd hydraulic drive unit is located at described first
It is easier that pose phase when hysteresis, that is, lifting frame tilts occurs in hydraulic drive unit and the second hydraulic drive unit
To relatively low one side.
3. lifting gear according to claim 1, which is characterized in that first hydraulic drive unit, the second hydraulic pressure drive
Moving cell and the 3rd hydraulic drive unit have identical performance and size.
4. lifting gear according to claim 1, which is characterized in that it is described manipulation unit have up and down, shutdown,
The operatives such as shutdown, by operatives such as the up and down, shutdown, shutdown, the driving device can make the lifting
Frame up and down are maintained at a certain position.
5. lifting gear according to claim 1, which is characterized in that the manipulation unit there is overload to rise, under overload
Drop, overload stop etc. operatives, by it is described overload rise, overload decline, overload stop etc. operatives, it is described driving dress
Putting can rise the lifting frame overload, overload decline or keep overloading in a certain position.
6. lifting gear according to claim 1, which is characterized in that first hydraulic drive unit and the second hydraulic pressure drive
Moving cell has identical a performance and size, the normal thrust of the 3rd hydraulic drive unit be the second hydraulic drive unit or
N times of first hydraulic drive unit, and N>1.
7. a kind of installation adjusting method of lifting gear as described in any claim in claim 1 to 6, 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.
8. a kind of application method of lifting gear according to any claim in claim 1 to 6, which is characterized in that
The center of gravity for the live load that the lifting frame is received should be as close to the lifting frame bottom surface center line in the front-back direction.
9. a kind of application method of lifting gear according to claim 3, which is characterized in that the lifting frame was received
The center of gravity of live load should as far as possible in left and right directions inside the lifting frame an optimum position, the optimum position with
Side where 3rd hydraulic drive unit in the lateral direction at a distance of the lifting frame left and right directions overall width three/
One.
10. a kind of application method of lifting gear according to claim 6, which is characterized in that the lifting frame is received
Live load center of gravity should as far as possible in left and right directions inside the lifting frame an optimum position, the optimum position
With side where the 3rd hydraulic drive unit in the lateral direction at a distance of 1/ (N+ of the lifting frame left and right directions overall width
2)。
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| CN201711188950.1A CN108046161A (en) | 2017-11-24 | 2017-11-24 | It is not easy to tilt and the strong lifting gear of overload capacity and its installation, application method |
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| CN209668682U (en) * | 2017-11-24 | 2019-11-22 | 广东浩翔机械制造有限公司 | A kind of lifting device for being not easy to tilt and overload capacity is strong |
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Application publication date: 20180518 |