CN101357741A - Movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism - Google Patents
Movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism Download PDFInfo
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- CN101357741A CN101357741A CNA2008103047199A CN200810304719A CN101357741A CN 101357741 A CN101357741 A CN 101357741A CN A2008103047199 A CNA2008103047199 A CN A2008103047199A CN 200810304719 A CN200810304719 A CN 200810304719A CN 101357741 A CN101357741 A CN 101357741A
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- arm
- counterweight
- jib
- pipe link
- travel mechanism
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Abstract
The invention relates to a counterweight automatic synchronous mobile mechanism of an amplitude boom tower crane, which is connected with a balancing arm; the undersurface of the front end of the balancing arm is articulated with the top of the tower; the upside of the front end is articulated with an arm frame; a parallel four-bar linkage is composed of a rocking bracket, a shipper rod and a transitional joint lever by means of the balancing arm through the mobile mechanism; wherein, the back end of the rocking bracket is articulated with the back end of the shipper rod; the counterweight is positioned at the central position of the articulating point; the front end of the rocking bracket is hinged with the hinder part of the balancing arm; the front end of the shipper rod is articulated with the rear end of the transitional joint lever; the front end of the transitional joint lever is fixed and connected with the arm frame; the lower end of a supporting rod at the center of the transitional joint lever is fixed and connected with the transitional joint lever; the upper end of the supporting rod is fixed and connected with the arm frame at the trail of the arm frame. In the process of the amplitude of the arm, the counterweight automatic synchronous mobile mechanism of the amplitude boom tower crane has the advantages that the counterweight is moved synchronously, thus leading a suitable automatic adjustment for a balancing moment as the pitching of the arm frame and effectively solving the balancing problem of a large amplitude boom tower crane.
Description
Technical field
The present invention relates to a kind of counterweight travel mechanism that is used for tower crane.
Background technology
Luffing jib tower crane is the change that realizes amplitude by the pitching of jib, and in amplitude changing process, the also corresponding change of jib center of gravity must use the large-tonnage counterweight to reach the balance of body of the tower.Suitable balancing torque to satisfying the safety of body of the tower under the different operating modes, reduces the material use amount of body of the tower, reduces the complete machine cost and has very positive meaning.
Existing counterweight travel mechanism such as patent CN1837011A, CN2793032Y, be that counterweight is directly installed on the track of equilibrium arm, drive counterweight by the counterweight running gear and on equilibrium arm, move, also the walking that luffing measurement mechanism and electric apparatus control apparatus are controlled counterweight need be set simultaneously.There is the problem of complex structure, installation and maintenance inconvenience in this type of counterweight travel mechanism, and bigger to equilibrium arm top board space hold.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism, make counterweight travel mechanism integral structure more succinct, stressed clear and definite, make things convenient for installation and maintenance.
The technical solution adopted for the present invention to solve the technical problems is:
This movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism, be connected with equilibrium arm, hinged below the front end of equilibrium arm with slewing tower, hinged above the front end with jib, it is characterized in that: this travel mechanism forms parallel four-bar linkage by swing arm, shifting bar and transition pipe link by equilibrium arm, and wherein, the rear end of swing arm and the rear end of shifting bar are hinged, counterweight is placed on this hinge center, and the front end of swing arm and the rear portion of equilibrium arm are hinged; The rear end of the front end of shifting bar and transition pipe link is hinged; The front end of transition pipe link is captiveed joint with jib, captives joint with the transition pipe link in the strut bar lower end at transition pipe link middle part, captives joint with jib at the afterbody of jib in the upper end of strut bar.
Above-mentioned counterweight both sides can respectively connect a parallel four-bar linkage, and the transition pipe link of both sides is linked to be a framework.
Beneficial effect of the present invention is as follows:
Integral body of the present invention is formed a parallel four-bar linkage by shifting bar, swing arm etc., and the connecting rod of mechanism is connected with jib by the transition pipe link.In the jib amplitude changing process, make the same moved further of counterweight by the luffing power of jib, the position of jib can be accomplished corresponding one by one with the position of counterweight.In moving process, shifting bar is parallel with horizontal surface all the time, the counterweight center of gravity all the time with cooresponding hinge in-line, structure is succinct relatively, and is stressed clear and definite, convenient for installation and maintenance.Entire mechanism is positioned at the equilibrium arm lower end, has reduced the taking of board space, equilibrium arm top, and is convenient to the installation of two great institutions.
The present invention can make the same moved further of counterweight in the jib amplitude changing process.Make balancing torque suitably to adjust automatically, solved the equilibrium problem of large-scale luffing jib tower crane effectively with the pitching of jib.
The present invention can significantly reduce the moment of flexure of body of the tower; By a small margin the time, counterweight can also participate in preventing to turn over behind the jib, helps the safe in utilization of tower machine.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
The structural representation of counterweight travel mechanism when Fig. 1 is the jib amplitude peak.
The structural representation of counterweight travel mechanism when Fig. 2 is the jib minimum radius.
Reference numeral: 1-counterweight, 2-swing arm, 3-shifting bar, 4-equilibrium arm, 5-transition pipe link, 6-jib, 7-slewing tower, 8-strut bar.
The specific embodiment
Embodiment is referring to shown in Figure 1, and referring to Fig. 2, referring to Fig. 3, this swing arm tower machine counterweight automatic synchronization travel mechanism is connected between equilibrium arm 4 and the jib 6, and counterweight is fixed on the hinge place of shifting bar and swing arm.There is following major part in this mechanism:
2: one ends of swing arm are hinged on the equilibrium arm 4, on the hinged shifting bar 3 of an end.
3: one ends of shifting bar and swing arm are hinged, and an end and jib transition pipe link 5 are hinged.
Transition pipe link 5 a: part that is actually jib.Connect jib 6 and shifting bar 3.By it, mechanism is with the swing campaign of jib 6.Transition pipe link 5 also can be a framed structure.
This working process of mechanism is: during jib 6 luffings, driving transition pipe link 5 is that swing at the center with jib 6 with the hinge that is connected of jib 6 and equilibrium arm 4, simultaneously the shifting bar 3 of lead agency moves drive counterweight 1 same moved further with equilibrium arm relative to the hinge of two swing arms is parallel.
Claims (2)
1. movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism, be connected with equilibrium arm (4), hinged below the front end of equilibrium arm (4) with slewing tower (7), hinged above the front end with jib (6), it is characterized in that: this travel mechanism is by swing arm (2), shifting bar (3) and transition pipe link (5) are formed parallel four-bar linkage by equilibrium arm (4), wherein, the rear end of the rear end of swing arm (2) and shifting bar (3) is hinged, counterweight (1) is positioned over the hinge center, with the same moved further of hinge, the rear portion of the front end of swing arm (2) and equilibrium arm (4) is hinged; The rear end of the front end of shifting bar (3) and transition pipe link (5) is hinged; The front end of transition pipe link (5) is captiveed joint with jib (6), captives joint with transition pipe link (5) in strut bar (8) lower end at transition pipe link (5) middle part, captives joint with jib at the afterbody of jib (6) in the upper end of strut bar (8).
2. movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism according to claim 1 is characterized in that: above-mentioned counterweight both sides respectively connect a parallel four-bar linkage, and the transition pipe link of both sides is linked to be a framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103047199A CN101357741A (en) | 2008-09-27 | 2008-09-27 | Movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103047199A CN101357741A (en) | 2008-09-27 | 2008-09-27 | Movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101357741A true CN101357741A (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103047199A Pending CN101357741A (en) | 2008-09-27 | 2008-09-27 | Movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism |
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| CN (1) | CN101357741A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104326383A (en) * | 2014-10-14 | 2015-02-04 | 太原重工股份有限公司 | Crane and torque self-balancing device and method thereof |
| CN105645135A (en) * | 2016-03-29 | 2016-06-08 | 华电重工股份有限公司 | Screw ship unloader and vertical arm follow-up device thereof |
| CN105692254A (en) * | 2016-03-29 | 2016-06-22 | 华电重工股份有限公司 | Screw ship unloader |
| CN105731107A (en) * | 2016-03-29 | 2016-07-06 | 华电重工股份有限公司 | Spiral ship unloader and perpendicular arm swing driving device thereof |
| CN105819346A (en) * | 2016-06-15 | 2016-08-03 | 江苏振东港口机械制造有限公司 | Balance crane with parallel four-bar mechanism |
| WO2016119135A1 (en) * | 2015-01-28 | 2016-08-04 | 徐州重型机械有限公司 | Movable counterweight mechanism of hoisting machinery and hoisting machinery |
| CN107188051A (en) * | 2017-07-24 | 2017-09-22 | 台州恒投工贸有限公司 | A kind of bulk goods, which is unloaded, to be equipped and its balance boom system |
| CN111847279A (en) * | 2020-07-29 | 2020-10-30 | 抚顺永茂建筑机械有限公司 | Movable arm tower crane steel wire rope driving type movable counterweight device |
| CN112573401A (en) * | 2020-11-30 | 2021-03-30 | 长沙中联消防机械有限公司 | Adjustable amplitude-variable hinge point system, elevating fire truck or overhead working truck |
| CN115057378A (en) * | 2022-08-05 | 2022-09-16 | 山西省安装集团股份有限公司 | Backward-tipping prevention device of tower crane |
-
2008
- 2008-09-27 CN CNA2008103047199A patent/CN101357741A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104326383A (en) * | 2014-10-14 | 2015-02-04 | 太原重工股份有限公司 | Crane and torque self-balancing device and method thereof |
| WO2016119135A1 (en) * | 2015-01-28 | 2016-08-04 | 徐州重型机械有限公司 | Movable counterweight mechanism of hoisting machinery and hoisting machinery |
| US10150656B2 (en) | 2015-01-28 | 2018-12-11 | Xuzhou Heavy Machinery Co., Ltd. | Mobile counterweight mechanism of a hoisting machine as well as a hoisting machine |
| CN105645135A (en) * | 2016-03-29 | 2016-06-08 | 华电重工股份有限公司 | Screw ship unloader and vertical arm follow-up device thereof |
| CN105692254A (en) * | 2016-03-29 | 2016-06-22 | 华电重工股份有限公司 | Screw ship unloader |
| CN105731107A (en) * | 2016-03-29 | 2016-07-06 | 华电重工股份有限公司 | Spiral ship unloader and perpendicular arm swing driving device thereof |
| CN105819346A (en) * | 2016-06-15 | 2016-08-03 | 江苏振东港口机械制造有限公司 | Balance crane with parallel four-bar mechanism |
| CN107188051A (en) * | 2017-07-24 | 2017-09-22 | 台州恒投工贸有限公司 | A kind of bulk goods, which is unloaded, to be equipped and its balance boom system |
| CN107188051B (en) * | 2017-07-24 | 2018-06-05 | 台州恒投工贸有限公司 | A kind of bulk goods unload equipment and its balance boom system |
| CN111847279A (en) * | 2020-07-29 | 2020-10-30 | 抚顺永茂建筑机械有限公司 | Movable arm tower crane steel wire rope driving type movable counterweight device |
| CN112573401A (en) * | 2020-11-30 | 2021-03-30 | 长沙中联消防机械有限公司 | Adjustable amplitude-variable hinge point system, elevating fire truck or overhead working truck |
| CN115057378A (en) * | 2022-08-05 | 2022-09-16 | 山西省安装集团股份有限公司 | Backward-tipping prevention device of tower crane |
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Open date: 20090204 |