CN102491197A - Crane jib for telescoping by utilization of gravity and crane with crane jib - Google Patents
Crane jib for telescoping by utilization of gravity and crane with crane jib Download PDFInfo
- Publication number
- CN102491197A CN102491197A CN2011104489282A CN201110448928A CN102491197A CN 102491197 A CN102491197 A CN 102491197A CN 2011104489282 A CN2011104489282 A CN 2011104489282A CN 201110448928 A CN201110448928 A CN 201110448928A CN 102491197 A CN102491197 A CN 102491197A
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- arm
- crane
- tower
- jib
- gravity
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Abstract
Disclosed are a crane jib for telescoping by the utilization of gravity and a crane with the crane jib. The invention is characterized in that the crane jib is composed of at least two jib sections which are successively nested together and generate mutual motion with each other by the utilization of the gravity, one or more than one locking mechanism is arranged between two jib sections which are nested together; and the crane jib is hinged to the top of a tower. The invention has the following beneficial effects: the crane jib is telescopic; a telescoping mechanism is not required so as to reduce the weight of the crane jib and raise the suspending capacity; a precision control system is not required so as to reduce the cost; synchronic telescoping of the tower and the crane jib is realized so as to save time; stability is good; and efficiency is high.
Description
Technical field
The present invention relates to a kind of retractor device, specifically is a kind of hoisting crane that utilizes the flexible arm of gravity realization and contain this arm.
Background technology
Arm is one of parts that directly carry in the crane lift heavy most critical.At present, the arm of car hosit and large-tonnage all terrain crane then is provided with a plurality of mutually nested box telescopic booms according to actual, and it " is stretched " and " contracting " action is accomplished through telescoping mechanism.Using more telescoping mechanism at present is " oil cylinder+rope row " and " single-cylinder bolt " mode.Former structure is understandable, realize easily, but system's own wt is bigger, and performance is comparatively obvious when arm joint number amount surpasses 5 joints.Latter's compact conformation is light, but needs higher control system to match, and costs an arm and a leg.No matter adopt which kind of stretch mode, all need the complete system of a cover to realize the expanding-contracting action of arm, increased cost, improved probability failure.
Summary of the invention
The object of the invention provides a kind of hoisting crane that utilizes the flexible arm of gravity realization and contain this arm to existing weak point in the above-mentioned prior art just.
The object of the invention can be realized through following technique measures:
The arm that utilizes gravity to realize flexible arm and contain the hoisting crane of this arm of the present invention is to be made up of the arm joint that utilizes arm joint self gravitation to make the arm internode produce motion each other that at least two joints nest together successively, and between the per two arm joints that nest together, is provided with and is no less than a said arm of locking mechanism and is installed in the body of the tower top through articulated manner.
Locking mechanism described in the present invention is that axle, hole cooperate the locking device of inserting.
The maximum extension length of the arm described in the present invention is less than the body of the tower maximum height.
Beneficial effect of the present invention is following:
Arm is scalable, and need not telescoping mechanism, alleviates arm weight, improves and hangs loading capability, need not precise control system, and cost reduces, and realizes body of the tower and arm synchronization telescope, save time, and good stability, efficient is high.
Description of drawings
Fig. 1 is that the hoisting hook that contains arm according to the invention carries device structure scheme drawing (the full reduced state of arm).
Sequence number among the figure: 1 luffing mechanism; 2 arms; 4 walking chassis; 5 bodies of the tower; 6 turntables.
Fig. 2 is the incomplete extended state figure of arm.
Fig. 3 is the complete extended state figure of arm.
Fig. 4 is the arm working state figure.
The specific embodiment
The present invention will combine following examples (accompanying drawing) to further describe:
As shown in Figure 1; Arm 2 among the present invention is to be made up of the arm joint that utilizes arm joint self gravitation to make the arm internode produce motion each other that nests together successively, and is respectively arranged with the locking mechanism that the inserting lock device that cooperated by axle, hole is formed at the per two arm joint two ends that nest together; Said arm is installed in by what mutual sheathing more piece hollow cylinder was together formed through articulated manner has Telescopic body of the tower 5 tops; At body of the tower 5 tops luffing mechanism 1 is installed also, described body of the tower 5 is installed in the top that the bottom is provided with the turntable 6 on walking chassis 4.
Principle of work of the present invention is following:
When first section of arm or latter end arm joint were upwards promoted, all the other each sections utilized the arm joint relative bearing surface of self gravitation (ground or support etc.) to keep static, the arm internode is produced each other move; When the most last arm joint was thus lifted to assigned address, locking mechanism connected locked, and the most last arm joint and adjacent arm joint are become one; And then drive alternate arm joint upward movement; And the like, as a whole until all arm joint total deadlocks, arm this moment " elongation " action is accomplished.
Latter end or first section arm joint contact bearing surface (ground or support) when arm; Remove the locking mechanism between hypomere arm joint and the adjacent overcoat arm joint; When arm integral body descends; Hypomere arm joint relative bearing surface under the effect of bearing surface is static, make its and its go up all arms and save generation relative motions; After dropping to certain position, the locking mechanism between releasing penult arm joint and adjacent overcoat arm save, and the like, nest together until all arms joints, fixing locked, " withdrawal " of arm moved and accomplished.
Furtherly, arm of the present invention is installed in the top of retractable body of the tower,, realizes first section or the rising or the decline of latter end of arm, and then accomplish the flexible of arm through the telescopic process of body of the tower; Or be installed in the top that can realize the crawler crane arm of rising or reduction through luffing, drive first section or the rising or the decline of latter end of said arm through the luffing of crawler crane boom; And then realize the flexible of said arm, this has promptly constituted a kind of novel hoisting crane.
For principle of work and the structure of utilizing gravity to realize flexible crane arm of the present invention is described in more detail, with said arm be installed in the top of retractable body of the tower and a kind of novel hoisting hook that constitutes to carry equipment be that example is narrated:
As shown in Figure 1, arm of the present invention is hinged on the top of retractable body of the tower 5, at body of the tower 5 tops luffing mechanism 1 is installed also; Body of the tower 5 is installed in the top that the bottom is provided with the turntable 6 on walking chassis 4; This has promptly constituted a kind of novel hoisting hook and has carried equipment.Carry in the equipment at this hoisting hook,, realize first section or the rising or the decline of latter end of arm, and then accomplish the flexible of arm through the telescopic process of body of the tower.
Like Fig. 2, shown in 3, before the lifting operation, the chassis 4 of will walking is fixing, and body of the tower 5 hoists, and drives arm 2 elongations.As shown in Figure 4, treat that arm 2 elongation action accomplishes back (because arm becomes as a whole, this moment, body of the tower can continue to hoist), through the angle that luffing mechanism 1 changes between arm 2 and the ground, the lifting operation change in radius of realization hoisting crane; Revolution through turntable drive body of the tower and on arm rotate, realize the variation of hoisting crane circumference scope of work.
After lifting operation is accomplished,, arm is connected bottom or fixing with bearing surface (ground or support), realizes that through the body of the tower retraction arm bounces back through luffing mechanism and body of the tower.Body of the tower and arm and other relevant apparatus are fixed, and haul is cut to, and carries out next operation.
Arm according to the invention can be used as the auxiliary of wheel crane, the auxiliary of crawler crane, tower crane arm, gate seat arm, ship arm, uses such as offshore platform arm.All said arm is installed in such as wheel crane, crawler crane, gantry crane, tower crane; Gate seat hangs, and ship hangs, and offshore platform hangs; Cranes etc. similarly on the bont and the hoisting hook that constitutes carries equipment, all will be included in the claim of the present invention, protected by the present invention.
Claims (3)
1. one kind is utilized gravity to realize flexible arm and contains the hoisting crane of this arm; It is characterized in that: said arm is to be made up of the arm joint that utilizes arm joint self gravitation to make the arm internode produce motion each other that at least two joints nest together successively, and between the per two arm joints that nest together, is provided with and is no less than a locking mechanism; Said arm is installed in the body of the tower top through articulated manner.
2. the hoisting crane that utilizes the flexible arm of gravity realization and contain this arm according to claim 1 is characterized in that: the inserting lock device that described locking mechanism cooperates for axle, hole.
3. the hoisting crane that utilizes the flexible arm of gravity realization and contain this arm according to claim 1, it is characterized in that: the maximum extension length of described arm is less than the body of the tower maximum height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104489282A CN102491197A (en) | 2011-12-29 | 2011-12-29 | Crane jib for telescoping by utilization of gravity and crane with crane jib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104489282A CN102491197A (en) | 2011-12-29 | 2011-12-29 | Crane jib for telescoping by utilization of gravity and crane with crane jib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102491197A true CN102491197A (en) | 2012-06-13 |
Family
ID=46183068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104489282A Pending CN102491197A (en) | 2011-12-29 | 2011-12-29 | Crane jib for telescoping by utilization of gravity and crane with crane jib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102491197A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318783A (en) * | 2013-06-24 | 2013-09-25 | 郑州新大方重工科技有限公司 | Truss type telescopic boom and crane comprising truss type telescopic boom |
| CN113135505A (en) * | 2021-04-26 | 2021-07-20 | 郑州新大方重工科技有限公司 | Truss structure follow-up telescopic system with guide mechanism, crane and guide method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1128959B (en) * | 1959-08-13 | 1962-05-03 | Krupp Ardelt Gmbh | Jib crane with telescopic jib |
| GB1039315A (en) * | 1963-03-22 | 1966-08-17 | Richier Sa | Tower crane |
| DE3114797C2 (en) * | 1981-04-11 | 1983-11-10 | Scheffer Maschinen- u. Apparatebau GmbH, 4414 Sassenberg | Material crane with a trolley |
| CA2013881A1 (en) * | 1990-04-04 | 1991-10-04 | Pekka T. Syrja | Timber crane |
| DE202004019021U1 (en) * | 2004-12-08 | 2006-04-20 | Liebherr-Werk Ehingen Gmbh | Telescopic system for mobile crane, comprises two telescopic armatures made out of hollow profiles, and screws centrally driven by means of central motor |
| CN101423179A (en) * | 2007-10-29 | 2009-05-06 | 利勃海尔爱茵根有限公司 | Method for erecting a crane boom |
| CN101423180A (en) * | 2007-10-29 | 2009-05-06 | 利勃海尔爱茵根有限公司 | Method for lifting a crane boom |
| CN201756423U (en) * | 2010-06-28 | 2011-03-09 | 三一汽车起重机械有限公司 | Telescopic crane arm and crane |
| CN102190255A (en) * | 2011-06-15 | 2011-09-21 | 郑州新大方重工科技有限公司 | Crane |
| CN202379626U (en) * | 2011-12-29 | 2012-08-15 | 郑州新大方重工科技有限公司 | Boom utilizing gravity to realize extension and contraction and crane containing boom |
-
2011
- 2011-12-29 CN CN2011104489282A patent/CN102491197A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1128959B (en) * | 1959-08-13 | 1962-05-03 | Krupp Ardelt Gmbh | Jib crane with telescopic jib |
| GB1039315A (en) * | 1963-03-22 | 1966-08-17 | Richier Sa | Tower crane |
| DE3114797C2 (en) * | 1981-04-11 | 1983-11-10 | Scheffer Maschinen- u. Apparatebau GmbH, 4414 Sassenberg | Material crane with a trolley |
| CA2013881A1 (en) * | 1990-04-04 | 1991-10-04 | Pekka T. Syrja | Timber crane |
| DE202004019021U1 (en) * | 2004-12-08 | 2006-04-20 | Liebherr-Werk Ehingen Gmbh | Telescopic system for mobile crane, comprises two telescopic armatures made out of hollow profiles, and screws centrally driven by means of central motor |
| CN101423179A (en) * | 2007-10-29 | 2009-05-06 | 利勃海尔爱茵根有限公司 | Method for erecting a crane boom |
| CN101423180A (en) * | 2007-10-29 | 2009-05-06 | 利勃海尔爱茵根有限公司 | Method for lifting a crane boom |
| CN201756423U (en) * | 2010-06-28 | 2011-03-09 | 三一汽车起重机械有限公司 | Telescopic crane arm and crane |
| CN102190255A (en) * | 2011-06-15 | 2011-09-21 | 郑州新大方重工科技有限公司 | Crane |
| CN202379626U (en) * | 2011-12-29 | 2012-08-15 | 郑州新大方重工科技有限公司 | Boom utilizing gravity to realize extension and contraction and crane containing boom |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318783A (en) * | 2013-06-24 | 2013-09-25 | 郑州新大方重工科技有限公司 | Truss type telescopic boom and crane comprising truss type telescopic boom |
| CN113135505A (en) * | 2021-04-26 | 2021-07-20 | 郑州新大方重工科技有限公司 | Truss structure follow-up telescopic system with guide mechanism, crane and guide method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120613 |