CN203229340U - Three-stage synchronous telescoping mechanism of crane boom - Google Patents
Three-stage synchronous telescoping mechanism of crane boom Download PDFInfo
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- CN203229340U CN203229340U CN 201320142089 CN201320142089U CN203229340U CN 203229340 U CN203229340 U CN 203229340U CN 201320142089 CN201320142089 CN 201320142089 CN 201320142089 U CN201320142089 U CN 201320142089U CN 203229340 U CN203229340 U CN 203229340U
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Abstract
The utility model relates to a three-stage synchronous telescoping mechanism of a crane boom, belongs to the technical field of a crane, and aims at providing the three-stage synchronous telescoping mechanism of the crane boom which is simple and reasonable in structure, simple to operate, and safe and reliable to use, and achieves synchronous telescoping of three-stage telescopic booms by a single cylinder. The utility model adopts the technical scheme that the three-stage synchronous telescoping mechanism comprises a basic boom, a first-stage telescopic boom, a second-stage telescopic boom and a third-stage telescopic boom, wherein the first-stage telescopic boom, the second-stage telescopic boom and the third-stage telescopic boom are orderly sleeved inside the basic boom; a telescopic cylinder is arranged on the basic boom; a cylinder rod of the telescopic cylinder is hinged with the tail end of the basic boom; a cylinder barrel is hinged with the tail end of the first-stage telescopic boom; a first semi-girder wheel is arranged at the tail end of the second-stage telescopic boom; a second semi-girder wheel and a third semi-girder wheel are arranged on a roller carrier at the front end of the cylinder barrel of the telescopic cylinder; and a second-stage semi-girder inhaul cable is wound orderly through the second semi-girder wheel, the first semi-girder wheel and the third semi-girder wheel; and two ends are fixed at the tail ends of the basic boom. The three-stage synchronous telescoping mechanism is mainly applied to the boom of a boom crane.
Description
Technical field
The utility model relates to three grades of synchronization telescope mechanisms of a kind of crane arm, belongs to the hoisting crane technical field.
Background technology
It is flexible simultaneously with identical stroke ratio that synchronization telescope refers to respectively save telescopic boom.Usually in three grades of synchronization telescope arm designs, all adopt absolute wiring method to realize three grades of synchronization telescopes; Why be referred to as absolute wiring method and be because the fag end of the semi-girder steel cable of secondary telescopic boom and three grades of telescopic booms and contracting arm steel cable all has an end to be fixed on the basic arm, owing to basic arm is swing arm not, so be referred to as absolute wiring method; Absolute wiring method is because the fag end of each semi-girder steel cable and contracting arm steel cable all has an end to be fixed on the basic arm, this can cause having only basic arm arm body section design not only wide but also high just is conducive to arrange that therefore absolute wiring method is suitable for three grades of synchronization telescope arms of middle large-tonnage straight arm type lorry-mounted crane more than eight tons in the arm of semi-girder steel cable and contracting arm steel cable.For satisfying the layout needs of three grades of synchronization telescope arms of medium and small tonnage straight arm type lorry-mounted crane semi-girder steel cable and contracting arm steel cable, our utility model a kind of relative wiring method, in order to can in low and narrow arm cross section, realize the steel cable layout.
The utility model content
The utility model overcomes the deficiency that prior art exists, technical matters to be solved has provided a kind of simple and reasonable for structure, single oil cylinder is realized three grades of telescopic boom synchronization telescopes, and is simple to operate, three grades of synchronization telescope mechanisms of safe and reliable crane arm.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: three grades of synchronization telescope mechanisms of a kind of crane arm, comprise: basic arm and be set in one-level telescopic boom, secondary telescopic boom and three grades of telescopic booms in the described basic arm successively, described basic arm is provided with telescopic oil cylinder, the cylinder bar of described telescopic oil cylinder is hinged on the tail end of basic arm, and the cylinder barrel of telescopic oil cylinder is hinged on the tail end of one-level telescopic boom;
The tail end of described secondary telescopic boom is provided with first semi-girder wheel, the turning rolls of telescopic oil cylinder cylinder barrel front end is provided with second semi-girder wheel and the 3rd semi-girder wheel, described secondary semi-girder drag-line is walked around second semi-girder wheel, first semi-girder wheel and the 3rd semi-girder wheel successively, and its two ends are fixed on the tail end of basic arm;
The tail end of described three grades of telescopic booms is provided with the 4th semi-girder wheel, the front end of described secondary telescopic boom is provided with the 5th semi-girder wheel and the 6th semi-girder wheel, described three grades of semi-girder drag-lines are walked around the 5th semi-girder wheel, the 4th semi-girder wheel and the 6th semi-girder wheel successively, and its two ends are fixed on the tail end of one-level telescopic boom;
The tail end of described secondary telescopic boom is provided with first contracting arm wheel, the tail end of described one-level telescopic boom is provided with second contracting arm wheel and the 3rd contracting arm wheel, described secondary contracting arm drag-line is successively around back second contracting arm wheel, first contracting arm wheel and the 3rd contracting arm wheel, and its two ends are fixed on the front end of basic arm;
The front end of described one-level telescopic boom is provided with the 4th contracting arm wheel, the tail end of described secondary telescopic boom is provided with the 5th contracting arm wheel and the 6th contracting arm wheel, described three grades of contracting arm drag-lines are the 5th contracting arm wheel, the 4th contracting arm wheel and the 6th contracting arm wheel successively, and its two ends are fixed on the front end of three grades of telescopic booms.
Described the 5th semi-girder wheel and the 6th semi-girder wheel are arranged before and after the axis of secondary telescopic boom.
Described first semi-girder wheel, second semi-girder wheel, the 3rd semi-girder wheel, the 4th semi-girder wheel, the 5th semi-girder wheel, the 6th semi-girder wheel, first contracting arm wheel, second contracting arm wheel, the 3rd contracting arm wheel, the 4th contracting arm wheel, the 5th contracting arm wheel and the 6th contracting arm wheel are pulley, and secondary semi-girder drag-line, three grades of semi-girder drag-lines, secondary contracting arm drag-line and three grades of contracting arm drag-lines are steel rope.
Described first semi-girder wheel, second semi-girder wheel, the 3rd semi-girder wheel, the 4th semi-girder wheel, the 5th semi-girder wheel, the 6th semi-girder wheel, first contracting arm wheel, second contracting arm wheel, the 3rd contracting arm wheel, the 4th contracting arm wheel, the 5th contracting arm wheel and the 6th contracting arm wheel are sprocket wheel, and secondary semi-girder drag-line, three grades of semi-girder drag-lines, secondary contracting arm drag-line and three grades of contracting arm drag-lines are chain.
The beneficial effect that the utility model compared with prior art has is: the utility model adopts single oil cylinder to realize the synchronization telescope of three grades of telescopic booms, effectively reduce the weight of arm, improved the stability of arm, reduced productive costs, the 5th semi-girder of secondary telescopic boom wheel and the 6th semi-girder wheel are along the telescopic boom axis arranged simultaneously, can satisfy and in low and narrow arm cross section, realize the demand that steel cable is arranged, more convenient to use.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is secondary semi-girder drag-line wiring structural representation in the utility model.
Fig. 4 is three grades of semi-girder drag-line wiring structural representations in the utility model.
Fig. 5 is secondary contracting arm drag-line wiring structural representation in the utility model.
Fig. 6 is three grades of contracting arm drag-line wiring structural representations in the utility model.
Among the figure: 1 is basic arm, and 2 is the one-level telescopic boom, and 3 is the secondary telescopic boom, 4 is three grades of telescopic booms, 5 is telescopic oil cylinder, and it 6 is first semi-girder wheel, and 7 is second semi-girder wheel, 8 is the 3rd semi-girder wheel, 9 is secondary semi-girder drag-line, and 10 is the 4th semi-girder wheel, and 11 is the 5th semi-girder wheel, 12 is the 6th semi-girder wheel, 13 is three grades of semi-girder drag-lines, and 14 is first contracting arm wheel, and 15 is second contracting arm wheel, 16 is the 3rd contracting arm wheel, 17 are secondary contracting arm drag-line, and 18 is the 4th contracting arm wheel, and 19 is the 5th contracting arm wheel, 20 is the 6th contracting arm wheel, and 21 is three grades of contracting arm drag-lines.
The specific embodiment
Extremely shown in Figure 6 as Fig. 1, three grades of synchronization telescope mechanisms of a kind of crane arm, comprise: basic arm 1 and be set in one-level telescopic boom 2, secondary telescopic boom 3 and three grades of telescopic booms 4 in the described basic arm successively, described basic arm 1 is provided with telescopic oil cylinder 5, it is characterized in that: the cylinder bar of described telescopic oil cylinder 5 is hinged on the basic arm 1, and the cylinder barrel of telescopic oil cylinder 5 is hinged on the tail end of one-level telescopic boom 2;
The tail end of described secondary telescopic boom 3 is provided with first semi-girder wheel 6, the turning rolls of telescopic oil cylinder 5 cylinder barrel front ends is provided with second semi-girder wheel the 7 and the 3rd semi-girder wheel 8, described secondary semi-girder drag-line 9 is walked around second semi-girder wheel, 7, first semi-girder wheel the 6 and the 3rd semi-girder wheel 8 successively, and its two ends are fixed on the tail end of basic arm 1;
The tail end of described three grades of telescopic booms 4 is provided with the 4th semi-girder wheel 10, the front end of described secondary telescopic boom 3 is provided with the 5th semi-girder wheel the 11 and the 6th semi-girder wheel 12, described three grades of semi-girder drag-lines 13 are walked around the 5th semi-girder wheel the 11, the 4th semi-girder wheel the 10 and the 6th semi-girder wheel 12 successively, and its two ends are fixed on the tail end of one-level telescopic boom 2;
The tail end of described secondary telescopic boom 3 is provided with first contracting arm wheel 14, the tail end of described one-level telescopic boom 2 is provided with second contracting arm wheel the 15 and the 3rd contracting arm wheel 16, described secondary contracting arm drag-line 17 is successively around back second contracting arm wheel, 15, first contracting arm wheel the 14 and the 3rd contracting arm wheel 16, and its two ends are fixed on the front end of basic arm 1;
The front end of described one-level telescopic boom 2 is provided with the 4th contracting arm wheel 18, the tail end of described secondary telescopic boom 3 is provided with the 5th contracting arm wheel the 19 and the 6th contracting arm wheel 20, described three grades of contracting arm drag-lines 21 are the 5th contracting arm wheel the 19, the 4th contracting arm wheel the 18 and the 6th contracting arm wheel 20 successively, and its two ends are fixed on the front end of three grades of telescopic booms 4.
Described the 5th semi-girder wheel the 10 and the 6th semi-girder wheel 11 is arranged before and after the axis of secondary telescopic boom 3.
Described first semi-girder wheel, 6, second semi-girder wheel the 7, the 3rd semi-girder wheel the 8, the 4th semi-girder wheel the 10, the 5th semi-girder wheel the 11, the 6th semi-girder wheel, 12, first contracting arm wheel, 14, second contracting arm wheel the 15, the 3rd contracting arm wheel the 16, the 4th contracting arm wheel the 18, the 5th contracting arm wheel the 19 and the 6th contracting arm wheel 20 is pulley, and secondary semi-girder drag-line 9, three grades of semi-girder drag-lines 13, secondary contracting arm drag-line 17 and three grades of contracting arm drag-lines 21 are steel rope.
Described first semi-girder wheel, 6, second semi-girder wheel the 7, the 3rd semi-girder wheel the 8, the 4th semi-girder wheel the 10, the 5th semi-girder wheel the 11, the 6th semi-girder wheel, 12, first contracting arm wheel, 14, second contracting arm wheel the 15, the 3rd contracting arm wheel the 16, the 4th contracting arm wheel the 18, the 5th contracting arm wheel the 19 and the 6th contracting arm wheel 20 is sprocket wheel, and secondary semi-girder drag-line 9, three grades of semi-girder drag-lines 13, secondary contracting arm drag-line 17 and three grades of contracting arm drag-lines 21 are chain.
When the utility model specifically used, the cylinder bar of telescopic oil cylinder 5 was hinged on the tail end of basic arm 1, and cylinder barrel is hinged on the tail end of one-level telescopic boom 2, when telescopic oil cylinder 5 big chamber oil-feeds, cylinder barrel stretches out, because basic arm 1 is motionless, cylinder barrel drives one-level telescopic boom 2 to begin to stretch out;
The tail end of secondary telescopic boom 3 is provided with first semi-girder wheel 6, the turning rolls of telescopic oil cylinder 5 cylinder barrel front ends is provided with second semi-girder wheel the 7 and the 3rd semi-girder wheel 8, secondary semi-girder drag-line 9 is walked around second semi-girder wheel, 7, first semi-girder wheel the 6 and the 3rd semi-girder wheel 8 successively, and its two ends are fixed on the tail end of basic arm 1, when one-level telescopic boom 2 stretched out, secondary telescopic boom 3 stretched out synchronously;
The tail end of three grades of telescopic booms 4 is provided with the 4th semi-girder wheel 10, the front end of secondary telescopic boom 3 is provided with the 5th semi-girder wheel the 11 and the 6th semi-girder wheel 12, three grades of semi-girder drag-lines 13 are walked around the 5th semi-girder wheel the 11, the 4th semi-girder wheel the 10 and the 6th semi-girder wheel 12 successively, and its two ends are fixed on the tail end of one-level telescopic boom 2, when secondary telescopic boom 3 stretched out, three grades of telescopic booms 4 stretched out synchronously;
And when one-level telescopic boom 2 stretches out L with respect to basic arm 1, secondary telescopic boom 3 stretches out 2L with respect to basic arm 1,4 of three grades of telescopic booms stretch out 3L with respect to basic arm 1, hence one can see that one-level telescopic boom 2, secondary telescopic boom 3, three grades of telescopic booms 4 all stretch out L with respect to last telescopic boom, outreach equates, and stretches out synchronously.
When one-level telescopic boom 2 shrinks, the tail end of secondary telescopic boom 3 is provided with first contracting arm wheel 14, the tail end of one-level telescopic boom 2 is provided with second contracting arm wheel the 15 and the 3rd contracting arm wheel 16, secondary contracting arm drag-line 17 is successively around back second contracting arm wheel, 15, first contracting arm wheel the 14 and the 3rd contracting arm wheel 16, and its two ends are fixed on the front end of basic arm 1, secondary telescopic boom 3 synchronous;
The front end of one-level telescopic boom 2 is provided with the 4th contracting arm wheel 18, the tail end of secondary telescopic boom 3 is provided with the 5th contracting arm wheel the 19 and the 6th contracting arm wheel 20, three grades of contracting arm drag-lines 21 are walked around the 5th contracting arm wheel the 19, the 4th contracting arm wheel the 18 and the 6th contracting arm wheel 20 successively, and its two ends are fixed on the front end of three grades of telescopic booms 4, when secondary telescopic boom 3 shrinks, three grades of telescopic boom 4 synchronous;
And when one-level telescopic boom 2 shrinks L with respect to basic arm 1, secondary telescopic boom 3 shrinks 2L with respect to basic arm 1,4 of three grades of telescopic booms shrink 3L with respect to basic arm 1, hence one can see that one-level telescopic boom 2, secondary telescopic boom 3, three grades of telescopic booms 4 all shrink L with respect to last telescopic boom, contract by distance equates, and synchronous.
By reference to the accompanying drawings embodiment of the present utility model has been done detailed description above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from the utility model aim, make various variations.
Claims (4)
1. three grades of synchronization telescope mechanisms of a crane arm, comprise: basic arm (1) and be set in one-level telescopic boom (2), secondary telescopic boom (3) and three grades of telescopic booms (4) in the described basic arm successively, described basic arm (1) is provided with telescopic oil cylinder (5), it is characterized in that: the cylinder bar of described telescopic oil cylinder (5) is hinged on the tail end of basic arm (1), and the cylinder barrel of telescopic oil cylinder (5) is hinged on the tail end of one-level telescopic boom (2);
The tail end of described secondary telescopic boom (3) is provided with first semi-girder wheel (6), the turning rolls of telescopic oil cylinder (5) cylinder barrel front end is provided with second semi-girder wheel (7) and the 3rd semi-girder wheel (8), described secondary semi-girder drag-line (9) is walked around second semi-girder wheel (7), first semi-girder wheel (6) and the 3rd semi-girder wheel (8) successively, and its two ends are fixed on the tail end of basic arm (1);
The tail end of described three grades of telescopic booms (4) is provided with the 4th semi-girder wheel (10), the front end of described secondary telescopic boom (3) is provided with the 5th semi-girder wheel (11) and the 6th semi-girder wheel (12), described three grades of semi-girder drag-lines (13) are walked around the 5th semi-girder wheel (11), the 4th semi-girder wheel (10) and the 6th semi-girder wheel (12) successively, and its two ends are fixed on the tail end of one-level telescopic boom (2);
The tail end of described secondary telescopic boom (3) is provided with first contracting arm wheel (14), the tail end of described one-level telescopic boom (2) is provided with second contracting arm wheel (15) and the 3rd contracting arm wheel (16), described secondary contracting arm drag-line (17) is successively around back second contracting arm wheel (15), first contracting arm wheel (14) and the 3rd contracting arm wheel (16), and its two ends are fixed on the front end of basic arm (1);
The front end of described one-level telescopic boom (2) is provided with the 4th contracting arm wheel (18), the tail end of described secondary telescopic boom (3) is provided with the 5th contracting arm wheel (19) and the 6th contracting arm wheel (20), described three grades of contracting arm drag-lines (21) are the 5th contracting arm wheel (19), the 4th contracting arm wheel (18) and the 6th contracting arm wheel (20) successively, and its two ends are fixed on the front end of three grades of telescopic booms (4).
2. three grades of synchronization telescope mechanisms of a kind of crane arm according to claim 1 is characterized in that: described the 5th semi-girder wheel (10) and the 6th semi-girder wheel (11) layout before and after the axis of secondary telescopic boom (3).
3. three grades of synchronization telescope mechanisms of a kind of crane arm according to claim 1 and 2, it is characterized in that: described first semi-girder wheel (6), second semi-girder wheel (7), the 3rd semi-girder wheel (8), the 4th semi-girder wheel (10), the 5th semi-girder wheel (11), the 6th semi-girder wheel (12), first contracting arm wheel (14), second contracting arm wheel (15), the 3rd contracting arm wheel (16), the 4th contracting arm wheel (18), the 5th contracting arm wheel (19) and the 6th contracting arm wheel (20) are pulley, secondary semi-girder drag-line (9), three grades of semi-girder drag-lines (13), secondary contracting arm drag-line (17) and three grades of contracting arm drag-lines (21) are steel rope.
4. three grades of synchronization telescope mechanisms of a kind of crane arm according to claim 1 and 2, it is characterized in that: described first semi-girder wheel (6), second semi-girder wheel (7), the 3rd semi-girder wheel (8), the 4th semi-girder wheel (10), the 5th semi-girder wheel (11), the 6th semi-girder wheel (12), first contracting arm wheel (14), second contracting arm wheel (15), the 3rd contracting arm wheel (16), the 4th contracting arm wheel (18), the 5th contracting arm wheel (19) and the 6th contracting arm wheel (20) are sprocket wheel, secondary semi-girder drag-line (9), three grades of semi-girder drag-lines (13), secondary contracting arm drag-line (17) and three grades of contracting arm drag-lines (21) are chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142089 CN203229340U (en) | 2013-03-27 | 2013-03-27 | Three-stage synchronous telescoping mechanism of crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142089 CN203229340U (en) | 2013-03-27 | 2013-03-27 | Three-stage synchronous telescoping mechanism of crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203229340U true CN203229340U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320142089 Expired - Fee Related CN203229340U (en) | 2013-03-27 | 2013-03-27 | Three-stage synchronous telescoping mechanism of crane boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203229340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171983A (en) * | 2013-03-27 | 2013-06-26 | 长治清华机械厂 | Three-stage synchronization telescoping mechanism of suspension arm of crane |
| DE102016104653A1 (en) * | 2016-03-14 | 2017-09-14 | Schwing Gmbh | Double telescopic arch support |
| CN109397331A (en) * | 2018-12-10 | 2019-03-01 | 浙江清华柔性电子技术研究院 | Telescopic mechanism, mechanical arm and robot system |
-
2013
- 2013-03-27 CN CN 201320142089 patent/CN203229340U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171983A (en) * | 2013-03-27 | 2013-06-26 | 长治清华机械厂 | Three-stage synchronization telescoping mechanism of suspension arm of crane |
| DE102016104653A1 (en) * | 2016-03-14 | 2017-09-14 | Schwing Gmbh | Double telescopic arch support |
| CN109397331A (en) * | 2018-12-10 | 2019-03-01 | 浙江清华柔性电子技术研究院 | Telescopic mechanism, mechanical arm and robot system |
| CN109397331B (en) * | 2018-12-10 | 2024-04-16 | 浙江清华柔性电子技术研究院 | Telescopic mechanism, mechanical arm and robot system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 046012 mailbox, Changzhi, Shanxi, 6 Co-patentee after: CHINA ACADEMY OF LAUNCH VEHICLE TECHNOLOGY Patentee after: SHANXI AEROSPACE QINGHUA EQUIPMENT Co.,Ltd. Address before: 046012 mailbox, Changzhi, Shanxi, 6 Co-patentee before: China Academy of Launch Vehicle Technology Patentee before: CHANGZHI QINGHUA MACHINERY FACTORY |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |