CN107265317A - Method and crane for unloader lifter principal arm - Google Patents
Method and crane for unloader lifter principal arm Download PDFInfo
- Publication number
- CN107265317A CN107265317A CN201710192677.3A CN201710192677A CN107265317A CN 107265317 A CN107265317 A CN 107265317A CN 201710192677 A CN201710192677 A CN 201710192677A CN 107265317 A CN107265317 A CN 107265317A
- Authority
- CN
- China
- Prior art keywords
- principal arm
- adjustment unit
- crane
- arm
- capstan winch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/66—Outer or upper end constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
Abstract
The present invention relates to a kind of method for unloader lifter, the particularly principal arm of mobilecrane, wherein described crane tool has the principal arm of amplitude-variable, is particularly telescopic principal arm and at least one adjustment unit, the adjustment unit is used to adjust at least one variable amplitude support to operate the auxiliary installed in the principal arm head, wherein described adjustment unit is hinged on the principal arm when without using auxiliary, and opposing torque is produced in the principal arm, to unload at least one amplitude oil cylinder of the principal arm and/or the principal arm.
Description
Technical field
The present invention relates to it is a kind of for unloader lifter, particularly mobilecrane principal arm method, wherein this
Heavy-duty machine has the principal arm and at least one adjustment unit of an amplitude-variable, and the adjustment unit is used to adjust at least one variable amplitude support
To operate the auxiliary installed in principal arm head (also referred to as variable-amplitude auxiliary arm).
Background technology
Crane, particularly mobilecrane are configured with principal arm, and the principal arm can be constructed as telescopic arm.According to should
With purpose and in order to improve maximum lifting height, in the head of principal arm auxiliary can be installed again.Pass through one or more luffings
Support operates this variable-amplitude auxiliary arm with the hauling rope of matching.Adjustment unit passes through the regulation capstan winch on crane
To operate, and act on necessary hauling rope to change the variable phase angle of variable-amplitude auxiliary arm.
If mobilecrane is difficult to complete lifting, then can not generally also use variable-amplitude auxiliary arm, because occur
Loading moment is too big.Described component is run described previously for luffing, such as variable amplitude support, hauling rope and regulation capstan winch are this
In the case of keep useless because crane implement just with telescopic principal arm lifting.
The criterion for being considered as limiting payload in this case is typically amplitude oil cylinder or possible scalable
Principal arm.It is desirable to just realize the unloading of component without significantly changing existing crane structure, can further improve
Maximum load torque.
The content of the invention
Therefore the purpose of the present invention be, it is possible to increase the bearing capacity of this crane, especially make full use of it is existing
In the case of lifting thermomechanical components.
The purpose is resolved by a kind of method according to claim 1 characteristic.This method it is favourable
Extension referring to dependent claims.
The starting point that this method is implemented is the crane with amplitude-variable principal arm He at least one adjustment unit, wherein regulation is single
Member is generally used for adjusting at least one variable amplitude support.This variable amplitude support is determined for operating the luffing pair installed in principal arm head
Arm/auxiliary.
Faced now according to the present invention, when not needing auxiliary, especially when removing auxiliary, abnormally using tune
Save unit.It is hinged to for this adjustment unit on principal arm, for producing opposing torque on principal arm.The opposing torque is preferably gram
Take loading moment.So as to realize the unloading at least one amplitude oil cylinder of principal arm and/or principal arm at least in part.So as to
The payload of maximum possible can be improved using existing lifting thermomechanical components.Particularly buy this with variable amplitude support
Crane is simultaneously familiar with the client of its characteristic and can benefit from the method according to the invention.Because in the fortune without variable-amplitude auxiliary arm recommended
Payload capacity can be further improved in row, the lifting thermomechanical components needed for this are that crane network operator is existing, because
This does not produce extra cost.
Particularly advantageously, adjustment unit is coaster, and its top sheave is hinged on principal arm, is particularly hinged to the upper of principal arm
At 1/3rd.Lower sheave is preferably rotatably hinged on capstan winch, is especially hinged on the capstan winch support got on the bus.Adopted by this
Capstan winch generally corresponds to the capstan winch that after all be used to operate variable-amplitude auxiliary arm/auxiliary.By capstan winch, coaster can be tensioned,
And to necessary torque or tractive force is brought in principal arm to be unloaded to arm configuration or one or more amplitude oil cylinders.
Provided in a kind of particularly advantageous extension of the present invention, to adjustment unit, the progress of special capstan driving device
The control matched somebody with somebody.This control or regulation are advantageously carried out according to the actual variable phase angle of principal arm.
It still further provides power regulation or displacement regulation.It is excellent when adjustment unit or capstan driving device carry out power regulation
Measured tractive force on principal arm and/or the hinge of the adjustment unit on regulation capstan winch is adjusted to predefined set by selection of land
Determine tractive force.
It is contemplated that displacement regulation works as front curve with respect to principal arm during transposition section in place.So as to attempt always to adjust
Save the constant setting bending of holding of principal arm, and control to adjust the respective drive of capstan winch accordingly.Setting bending can be preferably
Detected by adjustment unit namely coaster rope length, therefore as used herein is displacement regulation.
When not needing adjustment unit to unload principal arm, adjustment unit must be rested in reliably on crane.This is special
Suitable for the road transport of crane.It is this according to a kind of preferred extension, the top sheave of adjustment unit is in order to carry out crane
Transport and be stored in the opening of the lower sheave set by this.It is particularly preferred that lower sheave has a suitable folder
Device is held to accommodate the axis of rolling of top sheave, particularly pulley.A kind of forked clamping device is suitable, wherein top sheave
The axis of rolling is stored in prong.It is contemplated that lower sheave is rotatable by the capstan winch support of cantilever and regulation capstan winch
Ground is connected.Cantilever preferably extends beyond lower sheave, and forms in end the forked opening of device.
In addition to the method according to the invention, the present invention relates equally to a kind of crane, and it is adapted for carrying out according to this
The method of invention.Corresponding to this, crane includes the principal arm and at least one adjustment unit of at least one amplitude-variable, the tune
Section unit is generally designed to adjust auxiliary/variable-amplitude auxiliary arm by one or more variable amplitude supports.Adjustment unit so carrys out structure
Make so that the adjustment unit abnormally can be hinged on principal arm, by the way that enough drawing tensions can be brought on principal arm,
To unload principal arm and/or at least one amplitude oil cylinder.A kind of control/adjusting means driven for capstan winch is additionally provided with,
It is responsible for foregoing power regulation and/or displacement regulation.
According to the advantages and features of the crane of the present invention so as to the advantages and features corresponding to the method according to the invention.
It is not repeated to illustrate.
Crane includes the device for variable adjustment lifting radius in the ideal case.
Preferably adjustment unit is constructed as the coaster with least one top sheave and lower sheave.Lower sheave can be with
Alternatively there is clamping device to accommodate top sheave.Other clamping device is also used as clamp forks to construct, to accommodate upper cunning
The axis of rolling of wheel.This simplifies the dismounting of the upper surface in clamping device, and it is reliable in clamping device to realize top sheave
Storage is in favor of transport.
Coaster has the grooving of a multiple-limb, special at least ten, preferably at least 16.
Preferably, the lower sheave of the coaster of adjustment unit is rotatably hinged on regulation capstan winch, the particularly regulation is twisted
On the capstan winch support of disk.For connection purpose, preferably by joint angle support, the cantilever is realized in lower sheave with adjusting
Save rotatable connection between capstan winch or capstan winch support.It preferably includes at least one integrated load cell, to measure
Tractive force produced by adjustment unit, and detect the tractive force applied on principal arm.
Because possible tension force is almost all brought in principal arm point by point by adjustment unit or coaster, targetedly
Strengthen principal arm in the hinge area of adjusting means and meet purpose in ground.In jib system, preferably in adjustment unit institute
Middle at least one reinforcement structure of setting of winding up for the principal arm being hinged to, this is suitable.
Brief description of the drawings
Other advantages and features of the present invention are hereinafter explained in detail by one embodiment shown in the accompanying drawings.
Wherein：
Fig. 1 shows the schematic diagram for the mobilecrane for being provided with auxiliary；
Fig. 2 shows the application for unloading principal arm according to the adjustment unit of the present invention, and
Fig. 3 shows the detail drawing that the lower sheave of adjustment unit is installed on regulation capstan winch.
Embodiment
Fig. 1 shows the schematic side elevation according to crane of the invention, particularly mobilecrane.For simplification
Diagram, only depicts jib system.It is made up of a principal arm 10, and the principal arm is constructed as known telescopic arm.Principal arm
It is hinged on the getting on the bus of crane 10 amplitude-variables.At least one amplitude oil cylinder 11 is used to implement luffing motion.
Luffing pair is mounted with by adapter 14 in the head of innermost flexible joint arm 12, namely on its ring set 13
Arm 20.Luffing motion of the variable-amplitude auxiliary arm 20 in luffing plane by two variable amplitude supports 21,22 and corresponding bracing wire 23 come
Realize.Adjustment unit 30 is combined for operation bracing wire 23 with regulation capstan winch 40 and thereby become for the angle of variable-amplitude auxiliary arm 20
Change.Adjustment unit 30 is constructed as the coaster with top sheave 31 and lower sheave 32.
When not needing variable-amplitude auxiliary arm 20, adjustment unit 30 is used to unload jib system according to the present invention, it is especially useful in unload
Carry the structure of telescopic arm 10 and amplitude oil cylinder 11.Due to realizing during crane is run to principal arm 10 and amplitude oil cylinder
11 unloading, so obtaining the flexibility higher in crane lifting.
Fig. 2 shows the application for unloading principal arm 10 according to the adjustment unit 30 of the present invention.The upper cunning of adjustment unit 30
Wheel 31 is arranged on for this on ring set 16 of flexible joint arm 15 of penultimate.Lower sheave 32 is rotatably mounted by cantilever 33
On the capstan winch support 41 of regulation capstan winch 40.Coaster 30 is implemented using a twisted rope 34, and it has preferably been passed around 16 times.
A measuring box 50 is integrated with cantilever 33, to detect in adjustment unit 30 by e measurement technology
Power, and thereby tension force of the detection produced by principal arm 10, and it is transferred to crane controller.
The driving of the capstan winch of capstan winch 40 is adjusted according to the change angle adjusted of principal arm 10.Herein or provide
A kind of power regulation, wherein being setting tension force in the tension adjustment produced by this.The measured value of measuring box 50 is used as actual value.Or
Person also provides the regulation carried out according to the bending of principal arm 10.So as to adjust the setting bending of principal arm 10 herein, it is for example
It can be measured by the rope length of the coaster of adjustment unit 30.
Fig. 3 again illustrates the detail drawing of installation of the lower sheave 32 on capstan winch 40.Lower sheave 32 is as described previously by angle brace
The phase bolt connection of capstan winch support 41 of frame 33 rotatably with capstan winch 40.There is measuring box 50 in cantilever 33, to detect
The pulling force of generation.Other cantilever 33 protrudes past lower sheave 32, and forms forked opening 35 along the direction of top sheave 31.Can be with
Accommodate the roller bearing of top sheave 31 in the opening when not needed, and ensure to be used to transport.Forked opening 35 constitutes a clamping
Device, it allows the top sheave 31 for simply and suitably accommodating deactivation.
Because on the ring set 16 for being applied to the tension force point-like of adjustment unit 30 the flexible joint arm 15 of penultimate, its
It is reinforced by pointedly setting one or more reinforcement structures in winding up, and thereby prevents undesirable bending.
It is possible thereby to improve the maximum achievable tractive force in jib system.
Claims (11)
1. a kind of method for unloader lifter, the particularly principal arm of mobilecrane, wherein have can for the crane tool
The principal arm of luffing, particularly telescopic principal arm and at least one adjustment unit, the adjustment unit are used to adjust at least one
Variable amplitude support is arranged on the auxiliary of the principal arm head to operate,
Characterized in that,
The adjustment unit is hinged on the principal arm when without using auxiliary, and produces opposing torque in the principal arm, with
Unload at least one amplitude oil cylinder of the principal arm and/or the principal arm.
2. according to the method described in claim 1, it is characterised in that the adjustment unit is coaster, its top sheave is hinged to institute
State on principal arm, particularly at upper 1/3rd of the principal arm, and lower sheave can be rotatably set in capstan winch, particularly pair
On the capstan winch support of the regulation capstan winch of arm.
3. according to any method of the preceding claims, it is characterised in that the adjustment unit, particularly capstan winch drive
Dynamic device is controlled or adjusted according to the variable phase angle of the principal arm and/or the extension elongation of the flexible principal arm.
4. method according to claim 3, it is characterised in that carry out the adjustment unit or the capstan driving device
Power is adjusted, wherein particularly adjustment unit tractive force measured on pin joint on the principal arm is adjusted to make a reservation for
Setting tractive force.
5. the method according to claim 3 or 4, it is characterised in that the adjustment unit is adjusted to keep constant master
The setting bending of arm, wherein the setting bending can preferably be detected by the rope length of the adjustment unit.
6. according to any method of the preceding claims, it is characterised in that the top sheave of the adjustment unit in order to
Carry out crane transport and be stored in the opening of the lower sheave, especially by the capstan winch support of the lower sheave by
Accommodate.
7. a kind of crane for being adapted for carrying out the method according to any one of preceding claims, the crane has variable
The principal arm of width and at least one adjustment unit, the adjustment unit are used to adjust the auxiliary for being arranged on the principal arm head at least
One variable amplitude support, it is characterised in that
The adjustment unit may be hingedly attached on the principal arm when without using auxiliary, and be opened suitable for being produced on the principal arm
Power, to unload at least one amplitude oil cylinder of the principal arm and/or the principal arm at least in part.
8. crane according to claim 7, it is characterised in that the adjustment unit is coaster, it has at least one
Top sheave and lower sheave, wherein the lower sheave has clamping device to accommodate the top sheave.
9. crane according to claim 7, it is characterised in that the clamping device is clamp forks, to accommodate on described
The axis of rolling of pulley.
10. the crane according to any one of claim 7 to 9, it is characterised in that the lower sheave passes through connecting angle brace
Frame is rotatably hinged on regulation capstan winch, is particularly hinged on its capstan winch support, wherein being preferably integrated at least one
Power measuring box, with the tractive force produced by measuring in the joint angle support.
11. the crane according to any one of claim 7 to 10, it is characterised in that the principal arm is in the regulation dress
In the hinge area of top sheave put, the particularly adjusting means, particularly include in the winding up of the principal arm to
A few reinforcement structure, to limit extra increased tractive force by the adjustment unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016003897.7 | 2016-03-31 | ||
| DE102016003897.7A DE102016003897B4 (en) | 2016-03-31 | 2016-03-31 | Procedure for relieving the main boom of a crane and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107265317A true CN107265317A (en) | 2017-10-20 |
Family
ID=59885254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710192677.3A Pending CN107265317A (en) | 2016-03-31 | 2017-03-28 | Method and crane for unloader lifter principal arm |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107265317A (en) |
| DE (1) | DE102016003897B4 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004087557A1 (en) * | 2003-04-02 | 2004-10-14 | Terex-Demag Gmbh & Co. Kg | Two-piece main boom for a latice-boom crane and method for erection thereof |
| CN101638207A (en) * | 2008-07-30 | 2010-02-03 | 利勃海尔爱茵根有限公司 | Telescopic arm of crane and method for reinforcing through guy wire |
| CN102923585A (en) * | 2012-11-13 | 2013-02-13 | 郑州新大方重工科技有限公司 | Telescopic crane |
| CN104709833A (en) * | 2015-01-30 | 2015-06-17 | 徐工集团工程机械股份有限公司 | Novel luffing rib ropewalking crawler crane |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19929549B4 (en) * | 1999-06-23 | 2006-01-12 | Terex-Demag Gmbh & Co. Kg | Telescopic crane with boom extension |
-
2016
- 2016-03-31 DE DE102016003897.7A patent/DE102016003897B4/en active Active
-
2017
- 2017-03-28 CN CN201710192677.3A patent/CN107265317A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004087557A1 (en) * | 2003-04-02 | 2004-10-14 | Terex-Demag Gmbh & Co. Kg | Two-piece main boom for a latice-boom crane and method for erection thereof |
| CN101638207A (en) * | 2008-07-30 | 2010-02-03 | 利勃海尔爱茵根有限公司 | Telescopic arm of crane and method for reinforcing through guy wire |
| CN102923585A (en) * | 2012-11-13 | 2013-02-13 | 郑州新大方重工科技有限公司 | Telescopic crane |
| CN104709833A (en) * | 2015-01-30 | 2015-06-17 | 徐工集团工程机械股份有限公司 | Novel luffing rib ropewalking crawler crane |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016003897A1 (en) | 2017-10-05 |
| DE102016003897B4 (en) | 2021-05-12 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171020 |