CN101607677A - Telescopic crane gib arm - Google Patents
Telescopic crane gib arm Download PDFInfo
- Publication number
- CN101607677A CN101607677A CN 200910142503 CN200910142503A CN101607677A CN 101607677 A CN101607677 A CN 101607677A CN 200910142503 CN200910142503 CN 200910142503 CN 200910142503 A CN200910142503 A CN 200910142503A CN 101607677 A CN101607677 A CN 101607677A
- 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.)
- Granted
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention relates to a kind of telescopic crane gib arm that has basic arm, this basic arm comprises slip joint and at least one inner telescopic slip joint of external retractable.According to the present invention, be furnished with the installation ring that has point of connection at the place, end of basic arm, on this installation ring, flexible guiding element can attachedly be arranged, be used to guide the other slip joint that is inserted into.
Description
Technical field
The present invention relates to a kind of telescopic crane gib arm as described in the preamble as claimed in claim 1, and relate to a kind of car hosit.
Background technology
In the full-sized car hoisting crane, in the process of over-the-road transportation, assembly is taken apart and transportation separately usually.Like this, just can keep the permission 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 2,006 023 371 A1 and be equipped with specifically-built telescopic crane gib arm.Here, the slip joint and the revolving meber of assembling crane arm in modification, thus obtain short and 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 obtains 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.Long if desired arm can be inserted into other slip joint in the short telescoping boom under the situation of the most inboard previous slip joint not being carried out any bigger conversion.
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 the cooresponding the most inboard slip joint 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, prolonged the time of setting up of car hosit in addition.
Summary of the invention
The objective of the invention is to develop a kind of common telescopic crane gib arm,, and be easy to equally assemble once more so that can be easy to dismounting and transport it separately.
According to the present invention, this purpose can realize by the combination of features of claim 1.
Therefore, propose a kind of telescopic crane gib arm that has basic arm, comprise the slip joint of external retractable and at least one inner telescopic slip joint and the pulley head that has deflection pulley.
According to the present invention, be furnished with the installation ring that has point of connection at the place, 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 102,006 023 371 A1, 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 existing operation has short telescoping boom, is the car hosit of basic arm, the pulley head is installed at the point of connection place.Form contrast with DE 10 2,006 023 371 A1, this pulley head carries its single part at those some places, these points technology, statics and exercisable aspect all be best.Needn't observe the annoying mandatory standard such as the cross section that must avoid the most inboard slip joint in this.
Utilize this big 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 weight loaded articles.
For utilizing other slip joint to extend short telescoping boom, being for the situation of basic arm, can lay down the pulley head easily as a whole.
Preferred implementation as claimed in claim 2 is required for protection like that, can be on installation ring that has point of connection rather than pulley head attached flexible guiding element, be used to guide the other slip joint that is inserted into.Therefore, be bolted to installation ring accordingly, the whole assembly of guiding element together with other slip joint that stretch can be attached to basic arm by the guiding element that will stretch.
Other preferred aspect of the present invention can obtain by the dependent claims after the independent claims.
Therefore, can failure-free point of connection or bolt point be set at a plurality of somes place between flexible guiding element and the slip joint.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 are provided with on the 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 under the situation that does not have additional crossbeam, the whole assembly that constitutes by flexible guiding element of auxiliary hoist lifting and assembling and other slip joint.For this reason, in flexible guiding element, advantageously be provided with the transportation teat that is used for ccontaining crane hook.
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, so that need not slip joint is hung ground fully.Same here, further reduce to horizontal surface when following when lacking telescoping boom lifting, assembling is possible fast.In both cases, as known from the prior art, being connected between the known way stretching, extension oil cylinder of setting up telescopic crane gib arm and the other slip joint certainly.Therefore, the crane arm that can utilize existing oil cylinder to come intussusception all to extend.
Because basic arm also is heavy arm, but therefore utilizes 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 load moment to a considerable extent, loading is favourable for higher effective for this.
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 to the upper area that is used for installation ring and be arranged in the deflection pulley of lifting steel rope of the lower area of installation ring in the case of necessary equally.Deflection pulley is installed on the 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, can under the situation that does not have the pulley head, use arm equally in principle.Therefore, for the purpose of assembling, it can directly use at the construction field (site).Have under the situation of corresponding size, can utilize the deflection pulley of firm installation to carry out most lifting operation.In these cases, can omit of the transportation of additional pulley head, and optimize the freight volume that as ready is passed to the single part of camp site to the camp site.In addition, can optimize the deflection pulley that firmly is arranged on the 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 constituted limiting element, in these cases, can select the more steel strand of multiply.For this reason, it is essential using more deflection pulley in principle.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 the installation ring.Therefore, even can increase the number of share of stock that lifts steel rope, so that can lift bigger load.Utilize this structure, but can also omit the pulley head of bolt in principle 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 the alerting ability that uses by the favourable aspect that deflection pulley directly is arranged at installation ring.
Further claimed is a kind of car hosit that has the telescopic crane gib arm with above-mentioned feature.
Description of drawings
The explanation of the embodiment shown in reference to the accompanying drawings now further aspect of the present invention, details and advantage, wherein:
Fig. 1-5 show the telescopic crane gib arm that is in the different installing conditions and
Fig. 6 shows the lateral plan that is used for 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 this basic arm in a conventional manner.
Far-end being provided with of the most inboard slip joint 16 of basic arm 10 has the installation ring 18 of point of connection 20.Point of connection is to be used for ccontaining recess with teat of corresponding screw.
With reference to as shown in fig. 1, by cooresponding attached teat 26, the pulley head 22 with deflection pulley 24 can be utilized point of connection 20 attached, promptly be bolted to this installation ring.
In Fig. 2, show the basic arm 10 of the Fig. 1 that has the pulley head 22 that is attached to installation ring 18.
If must prolong basic arm 10, then pulley head 22 be removed once more.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 that has 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, owing to be heavy head, therefore heavy pulley head 22 only is connected with short telescoping boom 10 usually.Owing to basic arm 10 is actually optimized bulky construction, causes in fact not making in the weight optimization of this attached pulley head 22 for for telescopiform extention 34 is used.But, for special applications, can utilize the arm appendix to assign to carry out heavily stressed lifting operation.
Fig. 5 has described the installing condition of Fig. 4, and wherein slip joint 36 extends in the control position.For with undeclared but known mode moving telescopic joint, slip joint 36 is connected in and is arranged in basic arm in-to-in telescopic oil cylinder (not shown).
Fig. 6 shows flexible guiding element 30 in more detail.Here, teat 26 is provided with cooresponding screw 40.In addition, the flexible guiding element of annular 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 telescopiform extention 34 places joint accordingly.
The inboard of flexible guiding element 30 is provided with areal of support 44, is used to support telescopiform extention 34.
As shown in Figure 3, point of connection 42 is arranged in the center of gravity of additional slip joint 34, makes under the situation of not utilizing additional crossbeam, and whole telescopiform extention 34 can be by auxiliary hoist lifting and assembling with flexible guiding element 30.For this reason, the suspension hook of auxiliary hoist is contained in the cooresponding suspension hook containing hole 46 in the flexible guiding element 30.On auxiliary hoist, thereby can lift the flexible guiding element 30 that have telescopiform extention 34 along the direction of arrow shown in Fig. 3.Like this, just can advantageously omit attached hanging belt.Owing on the bottom surface of each slip joint, apply grease layer usually, so that the operability when improving the slip joint intussusception, so this is particularly advantageous.
With regard to hanging belt must pass the slip joint below, corresponding operation is inconvenient for the staff not only, 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 clean deficiently once more at the construction field (site).
And this hanging belt must be arranged in the other slip joint to be assembled safely.But this needs to have on the auxiliary hoist large-scale transverse beam.This crossbeam is set has increased the price of movable crane system on the one hand, has increased the freight volume that as ready is passed to the machinery of camp site on the other hand.
As mentioned above, thus the guiding element 30 that will stretch to be attached to basic arm 10 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, arrange deflection pulley 200 and 210 by the point of connection 20 of installation ring 18 in addition at installation ring 18 places.Same things is used to deflect 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 that has 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 that has point of connection in the end of described basic arm, on the described installation ring flexible guiding element can be attachedly arranged, be used to guide the other slip joint that is inserted into.
2. crane arm as claimed in claim 1 is characterized in that, has on the described installation ring of described point of connection the pulley head that has deflection pulley can attachedly be arranged.
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 described centre offset of described slip joint to be attached.
7. each described crane arm in the claim as described above is characterized in that, is furnished with the transportation teat that is used in particular for ccontaining stop motion mechanism on described flexible guiding element.
8. each described crane arm in the claim as described above 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. each described crane arm in the claim as described above is characterized in that the described installation ring that is positioned at the place, 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. car hosit that has as each the described crane arm that can stretch in the claim 1 to 11.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202008008173.4 | 2008-06-18 | ||
| DE200820008173 DE202008008173U1 (en) | 2008-06-18 | 2008-06-18 | Telescopic crane jib |
| DE102008062648.1A DE102008062648B4 (en) | 2008-06-18 | 2008-12-17 | Telescopic crane jib |
| DE102008062648.1 | 2008-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101607677A true CN101607677A (en) | 2009-12-23 |
| CN101607677B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276516A (en) * | 2013-07-04 | 2015-01-14 | 利勃海尔-沃克爱因根有限公司 | Method of assembling a crane and coupling section, telescopic boom and crane |
| CN104276518A (en) * | 2013-07-04 | 2015-01-14 | 利勃海尔-沃克爱因根有限公司 | Collar bearing for a telescopic boom as well as telescopic boom and crane |
| CN106103333A (en) * | 2015-02-09 | 2016-11-09 | 利勃海尔爱茵根有限公司 | Jib system and traveling hoist for traveling hoist |
Families Citing this family (5)
| 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 |
| 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 |
| KR101891909B1 (en) * | 2014-06-17 | 2018-08-24 | 가부시기가이샤다다노 | Extension and retraction device for telescopic boom |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1601845A (en) * | 1968-12-30 | 1970-09-14 | ||
| DE19608210C1 (en) * | 1996-03-04 | 1997-10-09 | Kidde Ind Inc | Device for guiding a telescopic part for a telescopic boom |
| CN2587835Y (en) * | 2002-11-20 | 2003-11-26 | 徐州重型机械厂 | Inner interlocked automatic telescopic U-shape crane jib |
| 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
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276516A (en) * | 2013-07-04 | 2015-01-14 | 利勃海尔-沃克爱因根有限公司 | Method of assembling a crane and coupling section, telescopic boom and crane |
| CN104276518A (en) * | 2013-07-04 | 2015-01-14 | 利勃海尔-沃克爱因根有限公司 | Collar bearing for a telescopic boom as well as telescopic boom and crane |
| CN104276516B (en) * | 2013-07-04 | 2018-08-17 | 利勃海尔-沃克爱因根有限公司 | For the method and shaft coupling of assembling crane, telescopic arm and crane |
| CN106103333A (en) * | 2015-02-09 | 2016-11-09 | 利勃海尔爱茵根有限公司 | Jib system and traveling hoist for traveling hoist |
| CN106103333B (en) * | 2015-02-09 | 2020-09-22 | 利勃海尔爱茵根有限公司 | Boom system for a mobile crane and mobile crane |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202008008173U1 (en) | 2009-11-05 |
| CN101607677B (en) | 2013-05-15 |
| DE102008062648A1 (en) | 2010-01-28 |
| DE102008062648B4 (en) | 2017-01-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20190618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |