CN101607677B - Telescopic crane gib arm - Google Patents
Telescopic crane gib arm Download PDFInfo
- Publication number
- CN101607677B CN101607677B CN 200910142503 CN200910142503A CN101607677B CN 101607677 B CN101607677 B CN 101607677B CN 200910142503 CN200910142503 CN 200910142503 CN 200910142503 A CN200910142503 A CN 200910142503A CN 101607677 B CN101607677 B CN 101607677B
- Authority
- CN
- China
- Prior art keywords
- slip joint
- arm
- point
- connection
- installation ring
- 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.)
- Expired - Fee Related
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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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
Abstract
The present invention relates to a telescopic crane gib arm with a basic arm, wherein the basic arm includes expansion joints which outer is telescopic, and at least a expansion joint which inner is telescopic. According to the invention, the end part of the basic arm is provided with a mounting ring with connecting points, and the mounting ring may be attached with a telescopic guide member for guiding another telescopic joint to be inserted.
Description
Technical field
The present invention relates to a kind of telescopic crane gib arm with basic arm, this telescopic crane gib arm comprises the slip joint that can stretch in the slip joint that can stretch the outside and at least one inside, and relates to a kind of car hosit.
Background technology
In the full-sized car hoisting crane, usually in the process of over-the-road transportation, assembly is taken apart and transportation separately.Like this, just can keep the license total weight of over-the-road transportation, to observe German arteries of communication regulations (StVZO).
Be known as the full-sized car hoisting crane by DE 10 2,006 023 371A1 and be equipped with specifically-built telescopic crane gib arm.Here, slip joint and the revolving meber of assembling crane arm in modification, thus obtain short with long telescoping boom.Be furnished with the pulley head on the most inboard slip joint of short telescoping boom, wherein, all parts that belong to the pulley head all are positioned at the outside of free cross-section of the arm body of this inner slip joint.
The purpose of this constructional variant is the free cross-section that to be used for the most inboard slip joint of short telescoping boom, so that in the case of necessary, the slip joint of insertable telescopiform extention can be passed this cross section.For instance, can use this hoisting crane with short telescoping boom.If need long arm, can in the situation that the most inboard previous slip joint is not carried out any larger conversion, other slip joint be inserted in short telescoping boom.
In order to support the slip joint of telescopiform extention, formerly set up supporting-point between the most inboard slip joint and the new slip joint that inserts.For this reason, be associated with bearing shell in the pulley head, the internal diameter of this pulley head is corresponding to the internal diameter of inboard slip joint of the correspondence of short telescoping boom.
It is quite expensive merging this supporting-point, and with regard to operating personal, has involved great muscle power.As a result, extended in addition the time of setting up of car hosit.
Summary of the invention
The object of the invention is to develop a kind of common telescopic crane gib arm, in order to can be easy to dismounting and transport separately it, and be easy to equally again assemble.
According to the present invention, this purpose can realize by a kind of telescopic crane gib arm with basic arm, wherein, this telescopic crane gib arm comprises the slip joint of external retractable and at least one inner telescopic slip joint and with the pulley head of deflection pulley.Be furnished with the installation ring with point of connection in the end of basic arm, on installation ring, flexible guiding element can be attachedly arranged, be used for the other slip joint that guiding is inserted into.
According to the present invention, be furnished with the installation ring with point of connection in the end of basic arm, the pulley head can be attachable to this installation ring.Can realize attached pulley head by simple bolt.Form contrast with DE 102,006 023 371A1, supporting-point is not set near basic arm.In the case of necessary, the pulley head can be bolted to this point of connection.If now operate with short telescoping boom, be the car hosit of basic arm, the place is equipped with the pulley head at point of connection.Form contrast with DE 10 2,006 023 371A1, this pulley head carries its single part at those somes places, these points technology, statics and exercisable aspect be all best.Needn't observe in this annoying mandatory standard such as the cross section that must avoid the most inboard slip joint.
Utilize this large free cross-section, have to absorb all power via ring.Therefore, this solution is much more unfavorable than the solution that wherein cross section can be filled up reinforced rib.When utilizing basic arm lifting loaded article, will be noted that this result especially, this is because the heaviest loaded article must utilize the basic arm lifting usually.Therefore, the pulley head must be able to be easy to particularly lift these heavy loaded articles.
For utilizing other slip joint to extend short telescoping boom, being for the situation of basic arm, can lay down as a whole easily the pulley head.
In a kind of preferred implementation, can be on the installation ring of point of connection rather than pulley head attached flexible guiding element, be used for the other slip joint that guiding is inserted into.Therefore, be bolted to accordingly installation ring by the guiding element that will stretch, the whole assembly of guiding element together with other slip joint that stretch can be attached to basic arm.
Other preferred aspect of the present invention can obtain by described crane arm hereinafter.
Therefore, a plurality of somes place that can be between flexible guiding element and slip joint arranges failure-free point of connection or bolt point.These point of connection advantageously can be configured to be arranged in the bolt point of the sidewall of other slip joint to be assembled.These recess that arrange on sidewall advantageously extend in neutral quality, so that they can not weaken material, so that they can exert an influence to the final loaded article with the telescoping boom lifting, and wherein as the result that bolt point is set, it is necessary that these recess are set in sidewall.Can in the center of gravity of other slip joint to be assembled, point of connection be set, thereby can be in the situation that do not have additional crossbeam, lift the whole assembly that consists of with the flexible guiding element of assembling and other slip joint by auxiliary hoist.For this reason, advantageously be provided with transportation teat for accommodating crane hook in flexible guiding element.
Other point of connection can be installed, so that only need more small-sized auxiliary hoist, it will lift other slip joint to be assembled outside center of gravity, in order to need not, slip joint is hung ground fully.Same here, when the lifting of short telescoping boom further being down to horizontal surface when following, assembling is possible fast.In both cases, as known from the prior art, being connected between the stretching, extension oil cylinder that certainly can set up in a known way telescopic crane gib arm and other slip joint.The crane arm that therefore, can utilize existing oil cylinder to come intussusception all to extend.
Because basic arm is also heavy arm, but therefore utilize basic arm to get the pulley head configuration of bolt heavy especially.By the fact that the pulley head according to the present invention can separate with the drop shot arm, cause thus can be in the extended structure modification saving in weight.Like this, can save to a considerable extent load moment, this is favourable for higher payload.
According to another especially favourable aspect of the present invention, the additional deflection pulley can be set at the installation ring place, wherein this additional deflection pulley be advantageously provided the deflection pulley for the lifting steel rope of the upper area that is used for installation ring and the lower area that is arranged in equally in the case of necessary installation ring.Deflection pulley is arranged on installation ring, makes the pulley head still can be bolted to installation ring.Therefore, all directly must be arranged in the deflection pulley of installation ring and the outside that their clamping element is arranged in the cross section profile of telescopiform extention.
Utilize this favourable solution, in principle equally can be in the situation that do not have the pulley head to use arm.Therefore, for the purpose of assembling, it can directly use at the construction field (site).In the situation that have corresponding size, can utilize the deflection pulley of firm installation to carry out most lifting operation.In these cases, can omit additional pulley head to the transportation of camp site, and optimize the freight volume that as ready is passed to the single part of camp site.In addition, can optimize the deflection pulley that firmly is arranged on installation ring and the weight of deflection pulley support, so that the unnecessary weight of not load of installation ring.
Because in the weight lifting operation, the lifting steel rope has consisted of limiting element, in these cases, can select the more steel strand of multiply.For this reason, it is essential using in principle more deflection pulley.For this reason, can pass through the attached additional pulley head of mode of bolt, and bootable steel rope is crossed pulley and the other attached pulley head that firmly is arranged on installation ring.Therefore, even can increase the number of share of stock of lifting steel rope, in order to can lift larger load.Utilize this structure, but can also omit in principle the pulley head of bolt fully.In this case, firmly be attached to the necessary guiding separately of the deflection pulley lifting steel rope of installation ring.
Generally speaking, for crane arm, increased by the favourable aspect that deflection pulley directly is arranged at installation ring the alerting ability that uses.
Further claimed is a kind of car hosit of the telescopic crane gib arm with having above-mentioned feature.
Description of drawings
The now explanation of the embodiment shown in reference to the accompanying drawings further aspect of the present invention, details and advantage, wherein:
Fig. 1-5 show the telescopic crane gib arm that is in different installing conditions, and
Fig. 6 shows for the lateral plan according to the flexible guiding element of crane arm of the present invention.
The specific embodiment
Fig. 1 schematically shows the lateral plan of the basic arm 10 that comprises outside slip joint 12 and two inner slip joints 14 and 16.With regard to regard to the situation of this not shown remaining part, just construct in a conventional manner this basic arm.
The far-end of the most inboard slip joint 16 of basic arm 10 is provided with the installation ring 18 with point of connection 20.Point of connection is the recess that has the teat of corresponding screw for accommodating.
With reference to as shown in fig. 1, by the attached teat 26 of correspondence, the pulley head 22 with deflection pulley 24 can be utilized point of connection 20 attached, namely be bolted to this installation ring.
In Fig. 2, show the basic arm 10 with Fig. 1 of the pulley head 22 that is attached to installation ring 18.
If must extend basic arm 10, pulley head 22 be removed again.As shown in Fig. 3 and 4, attached in the appropriate location of basic arm 10 have a flexible guiding element 30, and this flexible guiding element 30 comprises equally and connect teat 32, but the installation ring 18 that is used on the most inboard slip joint 16 with basic arm 10 forms being connected of bolts.
Fig. 4 shows the basic arm 10 with attached additional arm 34.Should add arm, be that telescopiform extention 34 comprises three slip joints 36,37 and 38.In illustrated embodiment, the most inboard slip joint 38 of telescopiform extention 34 is welded with pulley head 122.Pulley head 122 has point of connection 120, heavy pulley head 22 optionally can be used for these point of connection 120, and owing to being heavy head, therefore heavy pulley head 22 only is connected with short telescoping boom 10 usually.Due to basic arm 10 is actually optimized bulky construction, cause in fact not making in the weight optimization of this attached pulley head 22 for for using together with telescopiform extention 34.But, for special applications, can utilize the arm appendix to assign to carry out the lifting operation of heavy duty.
Fig. 5 has described the installing condition of Fig. 4, and wherein slip joint 36 extends in control position.In order to save with undeclared but known mode moving telescopic, slip joint 36 is connected in the telescopic oil cylinder (not shown) that is arranged in basic arm inside.
Fig. 6 shows flexible guiding element 30 in more detail.Here, teat 26 is provided with corresponding screw 40.In addition, the annular retractable guiding element is horizontally arranged with at least one screw 42, and this screw 42 is cooperated with the corresponding screw 42 in being horizontally installed on accordingly telescopiform extention 34 place joints.
Be provided with areal of support 44 on the inboard of flexible guiding element 30, be used for supporting telescopiform extention 34.
As shown in Figure 3, point of connection 42 is arranged in the center of gravity of additional slip joint 34, make in the situation that do not utilize additional crossbeam, whole telescopiform extention 34 and flexible guiding element 30 can together with by auxiliary hoist lifting and assembling.For this reason, the suspension hook of auxiliary hoist is contained in the suspension hook accommodating hole 46 of the correspondence in flexible guiding element 30.On auxiliary hoist, thereby can be along the flexible guiding element 30 of the direction of arrow shown in Fig. 3 lifting with telescopiform extention 34.Like this, just can advantageously omit attached hanging belt.Owing to usually applying grease layer on the bottom surface of each slip joint, so that the operability when improving the slip joint intussusception, so this is particularly advantageous.
With regard to below hanging belt must pass slip joint, corresponding operation is not only inconvenient for the staff, and will need the place of grease to remove the grease amount of can not ignore after a while, and grease is disseminated to a plurality of stop motion mechanisms that only can again clean deficiently at the construction field (site).
And this hanging belt must be arranged in other slip joint to be assembled safely.But this needs to have on auxiliary hoist a large-scale transverse beam.This crossbeam is set has increased the price of movable crane system on the one hand, has increased on the other hand the freight volume that as ready is passed to the machinery of camp site.
As mentioned above, thus the guiding element 30 that will stretch to be attached to basic arm 10 together with telescopiform extention 34 be particularly advantageous.But, can also be with the guiding element 30 that stretches at first attached and be bolted to installation ring 18 in principle, and just insert telescopiform extention 34 thereafter.But at this moment can't realize the above-mentioned advantage of assembly manipulation.
Shown in constructional variant in, the point of connection 20 by installation ring 18 is arranged deflection pulley 200 and 210 in addition at installation ring 18 places.Same things is used for deflecting from this unshowned crane rope.According to this structure, when pulley head 22 is bolted to installation ring 18, and when being used, deflection pulley 200 and 210 can remain on the installation ring place equally.For this reason, with maybe can with all deflection pulleys 200 and 210 and their holding element be arranged on the outside of the cross section profile of telescopiform extention 34.
Claims (12)
1. telescopic crane gib arm with basic arm comprises the slip joint that can stretch in the slip joint that can stretch the outside and at least one inside,
It is characterized in that,
Be furnished with the installation ring with point of connection in the end of described basic arm, on described installation ring, flexible guiding element can be attachedly arranged, be used for the other slip joint that guiding is inserted into.
2. crane arm as claimed in claim 1, is characterized in that, has the pulley head that can attachedly have on the described installation ring of described point of connection with deflection pulley.
3. crane arm as claimed in claim 1 or 2, is characterized in that, the point of connection of a plurality of positions that described flexible guiding element can be by being arranged in described slip joint is connected with the described slip joint that passes described flexible guiding element.
4. crane arm as claimed in claim 3, is characterized in that, described point of connection is the bolt point that is arranged in the sidewall of described slip joint.
5. crane arm as claimed in claim 4, is characterized in that, one of described point of connection is arranged in the center of gravity of described slip joint to be attached.
6. crane arm as claimed in claim 4, is characterized in that, one of described point of connection is with respect to the centre offset of described slip joint to be attached.
7. crane arm as claimed in claim 1 or 2, is characterized in that, is furnished with the transportation teat that is used in particular for accommodating stop motion mechanism on described flexible guiding element.
8. crane arm as claimed in claim 3, is characterized in that, on the described point of connection of described installation ring or on the additional point of connection at the head place of attached additional slip joint, load carrier can attachedly arranged.
9. crane arm as claimed in claim 8, is characterized in that, is being attached to the additional pulley head that can attachedly be useful on heavily loaded lifting operation on the described additional slip joint of described head.
10. crane arm as claimed in claim 1 or 2, is characterized in that, the described installation ring that is positioned at the end of described basic arm carries deflection pulley.
11. crane arm as claimed in claim 10 is characterized in that, described deflection pulley is arranged in the top and/or lower area of described installation ring.
12. a band is just like the car hosit of the described telescopic crane gib arm of any one in claim 1 to 11.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200820008173 DE202008008173U1 (en) | 2008-06-18 | 2008-06-18 | Telescopic crane jib |
| DE202008008173.4 | 2008-06-18 | ||
| DE102008062648.1 | 2008-12-17 | ||
| DE102008062648.1A DE102008062648B4 (en) | 2008-06-18 | 2008-12-17 | Telescopic crane jib |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101607677A CN101607677A (en) | 2009-12-23 |
| CN101607677B true CN101607677B (en) | 2013-05-15 |
Family
ID=41269087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910142503 Expired - Fee Related CN101607677B (en) | 2008-06-18 | 2009-06-18 | Telescopic crane gib arm |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101607677B (en) |
| DE (2) | DE202008008173U1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034676B4 (en) | 2008-07-25 | 2016-11-24 | Liebherr-Werk Ehingen Gmbh | Method for mounting a telescopic crane jib and apparatus for carrying out the method |
| DE102013011173B4 (en) * | 2013-07-04 | 2019-05-23 | Liebherr-Werk Ehingen Gmbh | Method for assembling a crane as well as articulation, telescopic boom and crane |
| DE102013011180B4 (en) * | 2013-07-04 | 2020-09-10 | Liebherr-Werk Ehingen Gmbh | Collar storage for a telescopic boom as well as telescopic boom and crane |
| CN103588120B (en) * | 2013-11-27 | 2016-03-23 | 三一汽车起重机械有限公司 | Telescopic boom device and engineering truck |
| CN106536398B (en) * | 2014-06-17 | 2019-07-12 | 株式会社多田野 | The telescopic device of telescopic arm |
| DE102015001619B4 (en) * | 2015-02-09 | 2021-03-04 | Liebherr-Werk Ehingen Gmbh | Boom system for a mobile crane as well as a mobile crane |
| DE102020121348A1 (en) | 2020-08-13 | 2022-02-17 | Liebherr-Werk Ehingen Gmbh | Quick assembly head for a telescopic boom and method of assembling the same |
| JP2022084003A (en) | 2020-11-25 | 2022-06-06 | タダノ デマグ ゲーエムベーハー | Telescopic jib system of mobile crane with basic telescopic jib and additional telescopic jib and corresponding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221510A (en) * | 1968-12-30 | 1971-02-03 | Richier Sa | Telescopic jib for a crane |
| CN2587835Y (en) * | 2002-11-20 | 2003-11-26 | 徐州重型机械厂 | Inner interlocked automatic telescopic U-shape crane jib |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608210C1 (en) * | 1996-03-04 | 1997-10-09 | Kidde Ind Inc | Device for guiding a telescopic part for a telescopic boom |
| DE10307689A1 (en) * | 2003-02-21 | 2004-09-23 | Deere & Company, Moline | boom |
| DE202005018214U1 (en) * | 2005-06-14 | 2006-02-16 | Stulz, Meinhard | Railway crane has extension arm fixed to its upper carriage which holds pivotable adaptor to take different tools |
| DE102006023371A1 (en) | 2006-05-16 | 2007-11-22 | Terex-Demag Gmbh & Co. Kg | Telescopic crane jib |
-
2008
- 2008-06-18 DE DE200820008173 patent/DE202008008173U1/en not_active Expired - Lifetime
- 2008-12-17 DE DE102008062648.1A patent/DE102008062648B4/en active Active
-
2009
- 2009-06-18 CN CN 200910142503 patent/CN101607677B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221510A (en) * | 1968-12-30 | 1971-02-03 | Richier Sa | Telescopic jib for a crane |
| CN2587835Y (en) * | 2002-11-20 | 2003-11-26 | 徐州重型机械厂 | Inner interlocked automatic telescopic U-shape crane jib |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008062648B4 (en) | 2017-01-05 |
| CN101607677A (en) | 2009-12-23 |
| DE102008062648A1 (en) | 2010-01-28 |
| DE202008008173U1 (en) | 2009-11-05 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |