CN203833520U - Crane boom and crane - Google Patents
Crane boom and crane Download PDFInfo
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- CN203833520U CN203833520U CN201420101698.1U CN201420101698U CN203833520U CN 203833520 U CN203833520 U CN 203833520U CN 201420101698 U CN201420101698 U CN 201420101698U CN 203833520 U CN203833520 U CN 203833520U
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- main chord
- jib
- web member
- sawtooth
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- 238000007373 indentation Methods 0.000 claims description 13
- 210000001015 abdomen Anatomy 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
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Abstract
The utility model discloses a crane boom and a crane, belonging to the field of crane equipment. The boom is of a truss structure which comprises four main chord members and a plurality of upper web members, wherein a plurality of upper web members are connected between the first main chord member and the second main chord member in a sawtoothed manner, a plurality of lower web members are connected between the third main chord member and the fourth main chord member in the sawtoothed manner, a plurality of front web members are connected between the first main chord member and the fourth main chord member in the sawtoothed manner, a plurality of rear web members are connected between the second main chord member and the third main chord member in the sawtoothed manner, the truss structure further comprises a plurality of diagonal web members which are arranged at intervals, the plurality of diagonal web members include a plurality of left diagonal web members and a plurality of right diagonal web members, the left diagonal web members are connected between the first main chord member and the third main chord member, the right diagonal web members are connected between the second main chord member and the fourth main chord member, and the left diagonal web members and the right diagonal web members are sequentially arranged alternatively. Through the arranged diagonal web members, the rigidity of the sections of the diagonal web members can be enhanced, and the welding difficulty can be lowered.
Description
Technical field
The utility model relates to crane facility field, particularly a kind of crane arm support and hoisting crane.
Background technology
As a part for hoisting crane, jib is that cargo load is delivered to the important component that connects pilum, it is except the requirement of necessary proof strength, rigidity, stability, jib structure design rationally whether, on hoisting crane relatively itself the transmission of power stream, the fatigue life of structure, overall deadweight, stability and overall performance have great impact.
Existing truss-type cantilever crane, generally comprise the jib root, insert jib section and the jib head that connect successively, jib root, insert jib section and jib head comprise respectively four main chords that are parallel to each other, and between adjacent main chord, are welded with web member, and web member indentation is welded between main chord.In order to ensure the stability of jib, multiple zero bar cross sections can be set between four main chords, each zero bar cross section comprises two vertical zero bars and two horizontal zero bars that rectangular shape is arranged, and is provided with a conformal web member (or welding two conformal web members that are splayed arrangement between two parallel horizontal zero bars) at the diagonal angle place in zero bar cross section.Wherein, main chord and web member, main chord and zero bar weld together.
Realizing in process of the present utility model, designer finds that prior art at least exists following problem:
The zero bar cross section arranging in order to ensure the stability of jib, in ensureing stability, increase (the increase in each zero bar cross section of the point of connection on main chord, make to have increased on jib 10 or 12 point of connection), thereby jib in use, can concentrate because more point of connection causes stress, cause jib fracture, and more point of connection increase the difficulty of welding process, and the increase in zero bar cross section, has also increased the weight of jib.
Utility model content
In order to solve the problem of prior art, the utility model embodiment provides a kind of crane arm support and hoisting crane.Described technical scheme is as follows:
On the one hand, the utility model embodiment provides a kind of crane arm support, described jib is truss structure, described truss structure comprises four main chords and Duo Gen web member, described four main chords comprise the first main chord, the second main chord, the 3rd main chord and the 4th main chord, described many web members comprise many upper web members, many lower web members, web member after many front web members and Duo Gen, described many upper web member indentations are connected between described the first main chord and the second main chord, described many lower web member indentations are connected between described the 3rd main chord and the 4th main chord, described many front web member indentations are connected between described the first main chord and the 4th main chord, after described many, web member indentation is connected between described the second main chord and the 3rd main chord, be positioned at the summit of the sawtooth of the described upper abdomen bar formation on described the first main chord, be positioned at the summit of the sawtooth of the described rear web member formation on described the second main chord, be positioned at the summit of the sawtooth of the described lower abdomen bar formation on described the 3rd main chord, be positioned at summit corresponding setting the one by one of the sawtooth of the described front web member formation on described the 4th main chord, and on four described main chords, the summit of the corresponding described sawtooth arranging is positioned at same plane, described truss structure also comprises many spaced oblique web members, described many oblique web members comprise the many oblique web members in a left side and the right oblique web member of Duo Gen, the oblique web member in a described left side is connected between described the first main chord and the 3rd main chord, the oblique web member in the described right side is connected between described the second main chord and described the 4th main chord, the oblique web member of the oblique web member in a described left side and the described right side is arranged alternately successively.
Particularly, described jib comprises the jib root, insert jib section and the jib head that are linked in sequence successively, and described jib root, insert jib section and jib head are described truss structure.
Preferably, along the length direction of described jib, on described jib, the summit of the multiple described sawtooth in interval is provided with a described oblique web member.
Further, from one end of described insert jib section, the summit of interval n described sawtooth arranges a described oblique web member, wherein, and 2≤n≤6, and n is positive integer.
Preferably, in described insert jib section, the value difference of n.
Preferably, described four main chords be arranged in parallel.
Preferably, the two ends of described insert jib section arrange respectively an oblique web member.
Preferably, along the length direction of described main chord, the sawtooth that described web member forms tilts to a direction.
Further, the direction of tilt of the sawtooth that described upper abdomen bar forms, the direction of tilt of the sawtooth forming with described lower abdomen bar is contrary, the direction of tilt of the sawtooth that described front web member forms, the direction of tilt of the sawtooth forming with described rear web member is contrary.
On the other hand, the utility model embodiment also provides a kind of hoisting crane, and described hoisting crane comprises underframe and lifting mechanism, luffing mechanism, swing type mechanism and the jib on the above underframe is set, and described jib is above-mentioned jib.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: by many oblique web members are set, left oblique web member is connected between the first main chord and the 3rd main chord, right oblique web member is connected between the second main chord and the 4th main chord, left oblique web member and right oblique web member are arranged alternately successively, by oblique web member is set, increase the rigidity in oblique web member cross section, in ensureing stability, the point of connection of oblique web member and main chord is few, reduce because stress is concentrated the risk that causes jib fracture, the minimizing of point of connection has also reduced the difficulty of welding process, and in the situation that adopting identical profiles, adopt oblique web member to greatly reduce the weight of overall jib than the mode that adopts horizontal zero bar and vertical zero bar.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of truss structure of providing of the utility model embodiment mono-;
Fig. 2 is the structural representation of a kind of truss structure of providing of the utility model embodiment mono-;
Fig. 3 is the structural representation of a kind of crane arm support of providing of the utility model embodiment mono-;
Fig. 4 is the structural representation that a kind of oblique web member that the utility model embodiment mono-provides arranges;
Fig. 5 is the structural representation that another oblique web member that the utility model embodiment mono-provides arranges.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment mono-
The utility model embodiment provides a kind of crane arm support, referring to Fig. 1, this jib is truss structure, truss structure comprises many web members 2 and four main chords 1 that be arranged in parallel, four main chords comprise the first main chord 11, the second main chord 12, the 3rd main chord 13 and the 4th main chord 14, many web members 2 comprise many upper web members 21, many lower web members 22, web member 24 after many front web members 23 and Duo Gen, many upper web member 21 indentations are connected between the first main chord 11 and the second main chord 12, many lower web member 22 indentations are connected between the 3rd main chord 13 and the 4th main chord 14, many front web member 23 indentations are connected between the first main chord 11 and the 4th main chord 14, after many, web member 24 indentations are connected between the second main chord 12 and the 3rd main chord 13, be positioned at the summit of the sawtooth that the upper web member 21 on the first main chord 11 forms, be positioned at the summit of the sawtooth that the rear web member 24 on the second main chord 12 forms, be positioned at the summit of the sawtooth that the lower web member 22 on the 3rd main chord 13 forms, be positioned at summit corresponding setting the one by one of the sawtooth that the front web member 23 on the 4th main chord 14 forms, and on four main chords 1, the summit of the corresponding sawtooth arranging is positioned at same plane. truss structure also comprises many spaced oblique web members 3, many oblique web members 3 comprise the many oblique web members 31 in a left side and the right oblique web member 32 of Duo Gen, left oblique web member 31 is connected between the first main chord 11 and the 3rd main chord 13, right oblique web member 32 is connected between the second main chord 12 and the 4th main chord 14, and the two ends of oblique web member 3 are connected on the summit of sawtooth accordingly, left oblique web member 31 and right oblique web member 32 are arranged alternately successively.
Particularly, in actual applications, oblique web member 3 is parallel with the end face of four main chords 1.For example, taking an oblique web member 31 in a left side as example, one end of the first main chord 11 is L1 to the length (along the length direction of the first main chord) of the left oblique web member 31 of this root, one end (being positioned at same one end with one end of the first main chord 11) of the 3rd main chord 13 is L2, L1=L2 to the length (along the length direction of the 3rd main chord 13) of the left oblique web member 31 of this root.Or, taking an oblique web member 32 in the right side as example, one end of the second main chord 12 is L3 to the length (along the length direction of the second main chord 12) of the right oblique web member 32 of this root, one end (being positioned at same one end with one end of the second main chord 12) of the 4th main chord 14 is L4, L3=L4 to the length (along the length direction of the 4th main chord 14) of the right oblique web member 32 of this root.
Particularly, as shown in Figure 2, the two ends of oblique web member 3 are connected on the summit of sawtooth accordingly, oblique web member 3 with go up accordingly web member 21, lower web member 22, front web member 23 and rear web member 24 and be positioned in same plane, and the parallelogram that upper web member 21, lower web member 22, front web member 23 and rear web member 24 are formed is separated into two triangles, utilize leg-of-mutton stability to increase the rigidity of oblique web member cross section (being parallelogram), it keeps the ability of cross sectional shape to be enhanced, and the stability of jib is also strengthened.
Particularly, as shown in Figure 3, jib comprises the jib root 10, insert jib section 20 and the jib head 30 that are linked in sequence successively, and jib root 10, insert jib section 20 and jib head 30 are truss structure.
Particularly, as an embodiment of the present embodiment, jib root 10, insert jib section 20 and jib head 30 can be welded as a whole.
Alternatively, as another embodiment of the present embodiment, between jib root 10 and insert jib section 20, insert jib section 20 and jib head 30, removably connect by bolt or bearing pin.
Preferably, along the length direction of jib, on jib, the summit a of the multiple sawtooth in interval is provided with an oblique web member 3.The summit a of the multiple sawtooth in interval arranges an oblique web member 3, in ensureing the stability of jib, can not increase the difficulty of welding process.
Further, from one end of insert jib section 20, the summit a of an interval n sawtooth arranges an oblique web member 3, wherein, and 2≤n≤6, and n is positive integer.The value of restriction n, in ensureing the stability of jib, can not strengthen due to the increase of oblique web member 3 again the difficulty of welding process.
Preferably, as an embodiment of the present embodiment, in insert jib section 20, the value of n can be different.For example, as shown in Figure 4, from one end of insert jib section 20, first between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set, then every the summit of 2 sawtooth a, between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set, then every the summit of 3 sawtooth a, between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set, then the summit a of 3 sawtooth in interval, between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set ...Again for example, from one end of insert jib section 20, first between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set, then every the summit of 2 sawtooth a, between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set, every the summit of 3 sawtooth a, between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set again, again every the summit of 2 sawtooth a, between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set ...
Preferably, as another implementation of the present embodiment, in insert jib section 20, the value of n also can be identical.For example, as shown in Figure 5, from one end of insert jib section 20, first between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set, then every the summit of 2 sawtooth a, between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set, every the summit of 2 sawtooth a, between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set again,, move in circles successively.Again for example, from one end of insert jib section 20, first, between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set, then every the summit of 3 sawtooth a, between the first main chord 11 and the 3rd main chord 13, an oblique web member 31 in a left side is set, then every the summit of 3 sawtooth a, between the second main chord 12 and the 4th main chord 14, an oblique web member 32 in the right side is set ..., move in circles successively.
Alternatively, the two ends of jib head 10 arrange respectively an oblique web member 3.By the two ends at jib head 10, an oblique web member 3 is set respectively, can increases the stability of jib head 10.
Alternatively, two of insert jib section 20 arrange respectively an oblique web member 3.By the two ends at insert jib section 20, an oblique web member 3 is set respectively, can increases the stability of insert jib section 20.
Alternatively, the two ends of jib root 30 arrange respectively an oblique web member 3.By the two ends at jib root 30, an oblique web member 3 is set respectively, can increases the stability of jib root 30.
Preferably, the first end being connected with insert jib section 20 at jib head 10, the opposite direction of the oblique web member 3 that the oblique web member 3 that jib head 10 first ends arrange and insert jib section 20 first ends arrange.The second end being connected with jib root 30 at insert jib section 20, the opposite direction of the oblique web member 3 that the oblique web member 3 that insert jib section 20 second ends arrange and jib root 30 second ends arrange.
Preferably, four main chords 1 be arranged in parallel.In the time that four main chords 1 be arranged in parallel, the cross-sectional plane of four main chords 1 is rectangle, and jib is uniform cross section jib.Apparently, four main chords 1 also can be not parallel, and now, jib is non-constant section jib.For example the first main chord 11 and the second main chord 12 are at an angle, and the 3rd main chord 13 is parallel with the second main chord 12, and the 4th main chord 14 is parallel with the first main chord 11, and now, the cross-sectional plane of these four main chords 1 is isosceles trapezoid.
Preferably, along the length direction of main chord 1, the sawtooth that web member 2 forms tilts to a direction.
Further, the direction of tilt of the sawtooth that upper web member 21 forms, the direction of tilt of the sawtooth forming with lower web member 22 is contrary, the direction of tilt of the sawtooth that front web member 23 forms, the direction of tilt of the sawtooth forming with rear web member 24 is contrary.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: by many oblique web members are set, left oblique web member is connected between the first main chord and the 3rd main chord, right oblique web member is connected between the second main chord and the 4th main chord, left oblique web member and right oblique web member are arranged alternately successively, increase the rigidity in oblique web member cross section, in ensureing stability, the point of connection of oblique web member and main chord is few, reduce because stress is concentrated the risk that causes jib fracture, the minimizing of point of connection has also reduced the difficulty of welding process, and in the situation that adopting identical profiles, adopt oblique web member to greatly reduce the weight of overall jib than the mode that adopts horizontal zero bar and vertical zero bar.
Embodiment bis-
The utility model embodiment provides a kind of hoisting crane, and this hoisting crane comprises underframe and be arranged on lifting mechanism, luffing mechanism, swing type mechanism and the jib on underframe, and jib is the jib described in embodiment mono-.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: by many oblique web members are set in the jib of hoisting crane, left oblique web member is connected between the first main chord and the 3rd main chord, right oblique web member is connected between the second main chord and the 4th main chord, left oblique web member and right oblique web member are arranged alternately successively, increase the rigidity in oblique web member cross section, in ensureing stability, the point of connection of oblique web member and main chord is few, reduce because stress is concentrated the risk that causes jib fracture, the minimizing of point of connection has also reduced the difficulty of welding process, and in the situation that adopting identical profiles, adopt oblique web member to greatly reduce the weight of overall jib than the mode that adopts horizontal zero bar and vertical zero bar.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory (ROM), disk or CD etc.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a crane arm support, described jib is truss structure, described truss structure comprises four main chords and Duo Gen web member, described four main chords comprise the first main chord, the second main chord, the 3rd main chord and the 4th main chord, described many web members comprise many upper web members, many lower web members, web member after many front web members and Duo Gen, described many upper web member indentations are connected between described the first main chord and the second main chord, described many lower web member indentations are connected between described the 3rd main chord and the 4th main chord, described many front web member indentations are connected between described the first main chord and the 4th main chord, after described many, web member indentation is connected between described the second main chord and the 3rd main chord, be positioned at the summit of the sawtooth of the described upper abdomen bar formation on described the first main chord, be positioned at the summit of the sawtooth of the described rear web member formation on described the second main chord, be positioned at the summit of the sawtooth of the described lower abdomen bar formation on described the 3rd main chord, be positioned at summit corresponding setting the one by one of the sawtooth of the described front web member formation on described the 4th main chord, and on four described main chords, the summit of the corresponding described sawtooth arranging is positioned at same plane, it is characterized in that, described truss structure also comprises many spaced oblique web members, described many oblique web members comprise the many oblique web members in a left side and the right oblique web member of Duo Gen, the oblique web member in a described left side is connected between described the first main chord and the 3rd main chord, the oblique web member in the described right side is connected between described the second main chord and described the 4th main chord, and the two ends of described oblique web member are connected on the summit of described sawtooth accordingly, the oblique web member of the oblique web member in a described left side and the described right side is arranged alternately successively.
2. jib according to claim 1, is characterized in that, described jib comprises the jib root, insert jib section and the jib head that are linked in sequence successively, and described jib root, insert jib section and jib head are described truss structure.
3. jib according to claim 2, is characterized in that, along the length direction of described jib, on described jib, the summit of the multiple described sawtooth in interval is provided with a described oblique web member.
4. jib according to claim 3, is characterized in that, from one end of described insert jib section, the summit of interval n described sawtooth arranges a described oblique web member, wherein, and 2≤n≤6, and n is positive integer.
5. jib according to claim 4, is characterized in that, in described insert jib section, and the value difference of n.
6. jib according to claim 2, is characterized in that, described four main chords be arranged in parallel.
7. jib according to claim 2, is characterized in that, the two ends of described insert jib section arrange respectively an oblique web member.
8. jib according to claim 2, is characterized in that, along the length direction of described main chord, the sawtooth that described web member forms tilts to a direction.
9. jib according to claim 8, it is characterized in that, the direction of tilt of the sawtooth that described upper abdomen bar forms, the direction of tilt of the sawtooth forming with described lower abdomen bar is contrary, the direction of tilt of the sawtooth that described front web member forms, the direction of tilt of the sawtooth forming with described rear web member is contrary.
10. a hoisting crane, described hoisting crane comprises underframe and is arranged on lifting mechanism, luffing mechanism, swing type mechanism and the jib on described underframe, it is characterized in that, described jib is the jib as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101698.1U CN203833520U (en) | 2014-03-06 | 2014-03-06 | Crane boom and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101698.1U CN203833520U (en) | 2014-03-06 | 2014-03-06 | Crane boom and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203833520U true CN203833520U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101698.1U Expired - Fee Related CN203833520U (en) | 2014-03-06 | 2014-03-06 | Crane boom and crane |
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| Country | Link |
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| CN (1) | CN203833520U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115514A (en) * | 2016-08-31 | 2016-11-16 | 徐工集团工程机械股份有限公司 | Jib and crane |
| CN113358470A (en) * | 2021-06-04 | 2021-09-07 | 山东理工大学 | Out-of-plane stable single steel truss test model |
| CN113582049A (en) * | 2021-07-19 | 2021-11-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawler crane and triangular truss arm thereof |
-
2014
- 2014-03-06 CN CN201420101698.1U patent/CN203833520U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115514A (en) * | 2016-08-31 | 2016-11-16 | 徐工集团工程机械股份有限公司 | Jib and crane |
| CN113358470A (en) * | 2021-06-04 | 2021-09-07 | 山东理工大学 | Out-of-plane stable single steel truss test model |
| CN113582049A (en) * | 2021-07-19 | 2021-11-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawler crane and triangular truss arm thereof |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 |