CN2642757Y - Crane using flexible drag-line dragging erector arm to implementing amplitude - Google Patents
Crane using flexible drag-line dragging erector arm to implementing amplitude Download PDFInfo
- Publication number
- CN2642757Y CN2642757Y CN 03284335 CN03284335U CN2642757Y CN 2642757 Y CN2642757 Y CN 2642757Y CN 03284335 CN03284335 CN 03284335 CN 03284335 U CN03284335 U CN 03284335U CN 2642757 Y CN2642757 Y CN 2642757Y
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- crane
- hoisting crane
- amplitude
- boom
- crane arm
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Abstract
A crane with flexible cable traction boom amplitude includes a crane and a boom self-weight torque balance device arranged on the crane. The boom self-weight torque balance device is a guide component arranged on the crane platform and a dynamic weight block matched with the guide component. The dynamic weight block is connected with a drive shaft of an amplitude drive mechanism or a boom arranged on the crane platform through a transmission mechanism. The utility model has the advantage that when the amplitude drive mechanism achieves amplitude variation through swaying the flexible cable traction boom against the fixed shaft on the platform, the transmission mechanism connected with the drive shaft of the amplitude drive mechanism or the boom drives the dynamic weight block moving along the opposite horizontal direction from the guide component to the boom gravity center, thus realizing the aim of increasing the lifting capacity of medium amplitude under same conditions of nominal crane magnitude.
Description
Technical field
The utility model relates to a kind of hoisting crane, especially relates to a kind of hoisting crane that has the flexible cable traction crane arm luffing of crane arm dead-load moment balancing device.
Background technology
At present, the known hoisting crane of realizing luffing by flexible cable traction, crane arm around the fixing root axle swing of relative board, the characteristic formulation criterion of its load-carrying ability is: with any amplitude far away (load hook is to crane rotation central horizontal distance), the moment that leans forward of lifting by crane this amplitude busy hour is one and sets constant in the amplitude of setting maximum hoisting moment.Do not considering under random load (carry as the wind etc.) condition that it acts on the moment that leans forward that revolution supports and mainly is made up of the hoisting moment of lifting article and dead-load moment two parts of crane arm.Because the crane arm of this type of hoisting crane is around the feature of root axle swing, make the dead-load moment of crane arm along with the increase of amplitude proportion and increasing in moment is leaned forward in setting, also promptly: the hoisting moment of lifting article is along with the increase of amplitude proportion and reducing in moment is leaned forward in setting.Therefore, the load-carrying ability of this type of hoisting crane in have quite a few to be consumed when working on the amplitude far away by the crane arm deadweight.The method of head it off employing at present is under the intensity that guarantees crane arm, rigidity condition, alleviate the crane arm deadweight, but effect is not remarkable as far as possible.
The utility model content
The purpose of the utility model is to provide a kind of hoisting crane of being realized luffing by flexible cable traction, crane arm around the fixing root axle swing of relative board at the existing in prior technology deficiency.This hoisting crane has the ability of self-equalizing crane arm dead-load moment, reach the purpose of dead-load moment shared part in moment is leaned forward in setting of part or all of elimination crane arm, under hoisting crane nominal magnitude the same terms, in the load-carrying ability of amplitude far away be improved.
For achieving the above object, the utility model adopts following technical proposals:
It comprises the hoisting crane body the utility model, and described hoisting crane body is provided with a crane arm dead-load moment balancing device; Described crane arm dead-load moment balancing device is the moving clump weight that is arranged on the ways on the hoisting crane body board and is complementary with described ways; Described moving clump weight links by transmission device and the luffing drive mechanism axle or the crane arm that are arranged on the board.
Described ways is to be parallel to the crane arm direction to be fixed on guide rail on the board; Certainly, described ways also can be made up of the guide wheel group that is fixed on the board; Described moving clump weight is provided with roller or guide rod; Described ways also can be set to be parallel to the crane arm direction and have the elevation angle be fixed on the board; Described transmission device is the steel rope transmission; Certainly also can be gear transmission or chain-driving or belt-driving.All belong to protection domain of the present utility model.
Advantage of the present utility model just be described hoisting crane body be provided be connected with hoisting crane body board on ways, with the moving clump weight that is complementary with described ways, and with described moving clump weight by transmission device be arranged on the crane arm dead-load moment balancing device that luffing drive mechanism axle on the board or crane arm link and formed.When the luffing driver train draws crane arm when the fixing root axle swing of relative board realizes luffing by flexible cable, the transmission device that is connected with luffing drive mechanism axle or crane arm drives moving clump weight and moves along the reversing sense of ways to crane arm center of gravity parallel motion direction, because the dead-load moment of the relative center of gyration of this moving clump weight is opposite with the dead-load moment direction of the relative center of gyration of crane arm, therefore, in definite moving clump weight weight and along under the ways moving range condition, can realize the conduct oneself with dignity moment balance of relative center of gyration of moving clump weight deadweight and crane arm, the dead-load moment of crane arm shared part in moment is leaned forward in setting is eliminated thus, the anti-ability of leaning forward that hoisting crane is saved thus can be used to increase heavy load, thereby be implemented under hoisting crane nominal magnitude the same terms, in the purpose that is improved of the load-carrying ability of amplitude far away.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 conceals plan structure scheme drawing behind the main frame for Fig. 2.
Fig. 4 conceals another structure schematic top plan view behind the main frame for Fig. 2.
The specific embodiment
Principle of work of the present utility model is:
As shown in Figure 1, on hoisting crane body 1, the luffing driver train is when driving crane arm 6 luffings by flexible cable, and the axle drive shaft 5 of luffing driver train or crane arm 6 drive moving clump weight 4 by transmission device 7.Crane arm center of gravity two limit positions Lbmax, Lbmin and crane arm weight W b by crane arm 6 amplitude changing process, suitably determine the weight W p of moving clump weight 4 and the transmission parameter of transmission device, according to lever principle, make the required counteracting of gravitational moment realization of relative center of gyration O-O during at relevant position Lbmax, Lbmin of the gravitational moment of moving clump weight 4 relative center of gyration O-O when its two limit positions Lpmax, Lpmin with crane arm 6.
Embodiment 1:
As Fig. 2, shown in Figure 3, the utility model comprises hoisting crane body 1, and described hoisting crane body 1 is provided with a crane arm dead-load moment balancing device; Described crane arm dead-load moment balancing device is the moving clump weight 4 that is arranged on the ways 3 on hoisting crane body 1 board 2 and is complementary with described ways 3; The luffing driver train is when driving crane arm 6 luffings by flexible cable, and its axle drive shaft 5 drives moving clump weight 4 by transmission device 7.Described transmission device 7 is made up of two-stage chain-driving (chain+sprocket wheel).
Embodiment 2:
As shown in Figure 4, the utility model comprises hoisting crane body 1, and described hoisting crane body 1 is provided with a crane arm dead-load moment balancing device; Described crane arm dead-load moment balancing device is the moving clump weight 4 that is arranged on the ways 3 on hoisting crane body 1 board 2 and is complementary with described ways 3; The luffing driver train drives moving clump weight 4 by transmission device 7 when driving crane arm 6 luffings by flexible cable.Transmission device 7 is made up of one-level chain-driving (chain+sprocket wheel) and one-level steel rope transmission (reel+steel rope+pulley).
Claims (9)
1, a kind of hoisting crane of flexible cable traction crane arm luffing, it comprises hoisting crane body (1), it is characterized in that: described hoisting crane body (1) is provided with a crane arm dead-load moment balancing device; The moving clump weight (4) of described crane arm dead-load moment balancing device for being arranged on the ways (3) on hoisting crane body (1) board (2) and being complementary with described ways (3); Described moving clump weight (4) links by transmission device (7) and the luffing drive mechanism axle (5) or the crane arm (6) that are arranged on the board (2).
2, hoisting crane according to claim 1 is characterized in that: described ways (3) is fixed on guide rail on the board (2) for being parallel to crane arm (6) direction.
3, hoisting crane according to claim 1 is characterized in that: described ways (3) is fixed on guide wheel group on the board (2) for being parallel to crane arm (6) direction.
4, hoisting crane according to claim 1 is characterized in that: described moving clump weight (4) is provided with roller.
5, hoisting crane according to claim 1 is characterized in that: described moving clump weight (4) is provided with guide rod.
6, hoisting crane according to claim 1 is characterized in that: described ways (3) has the elevation angle and is fixed on the board (2) for being parallel to crane arm (6) direction.
7, hoisting crane according to claim 1 is characterized in that: described transmission device (7) is the steel rope transmission.
8, hoisting crane according to claim 1 is characterized in that: described transmission device (7) is gear transmission or chain-driving.
9, hoisting crane according to claim 1 is characterized in that: described transmission device (7) is a belt-driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284335 CN2642757Y (en) | 2003-09-23 | 2003-09-23 | Crane using flexible drag-line dragging erector arm to implementing amplitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284335 CN2642757Y (en) | 2003-09-23 | 2003-09-23 | Crane using flexible drag-line dragging erector arm to implementing amplitude |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2642757Y true CN2642757Y (en) | 2004-09-22 |
Family
ID=34303785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03284335 Expired - Fee Related CN2642757Y (en) | 2003-09-23 | 2003-09-23 | Crane using flexible drag-line dragging erector arm to implementing amplitude |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2642757Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190769B (en) * | 2006-12-01 | 2010-05-26 | 上海比亚迪有限公司 | Heavy load balance mechanism |
| US8827092B2 (en) | 2006-10-27 | 2014-09-09 | Manitowoc Crane Companies, Llc | Mobile lift crane with variable position counterweight |
| US9278834B2 (en) | 2009-08-06 | 2016-03-08 | Manitowoc Crane Group, LLC | Lift crane with moveable counterweight |
| CN106946171A (en) * | 2017-05-11 | 2017-07-14 | 中船第九设计研究院工程有限公司 | A kind of single-cantilever-crane gantry crane counterweight self-regulation structure |
| CN108249325A (en) * | 2018-01-05 | 2018-07-06 | 惠安北酷机械科技有限公司 | A kind of full-automatic hydro-electric power project drainpipe gripping all-in-one machine |
| US10179722B2 (en) | 2014-01-27 | 2019-01-15 | Manitowoc Crane Companies, Llc | Lift crane with improved movable counterweight |
| US10183848B2 (en) | 2014-01-27 | 2019-01-22 | Manitowoc Crane Companies, Llc | Height adjustment mechanism for an auxiliary member on a crane |
| CN113184724A (en) * | 2021-03-16 | 2021-07-30 | 江苏政田重工股份有限公司 | Marine crane and safe operation and energy-saving control method thereof |
-
2003
- 2003-09-23 CN CN 03284335 patent/CN2642757Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10336589B2 (en) | 2006-10-27 | 2019-07-02 | Manitowoc Crane Companies, Llc | Mobile lift crane with variable position counterweight |
| US8827092B2 (en) | 2006-10-27 | 2014-09-09 | Manitowoc Crane Companies, Llc | Mobile lift crane with variable position counterweight |
| US8985353B2 (en) | 2006-10-27 | 2015-03-24 | Manitowoc Crane Companies, Llc | Mobile lift crane with variable position counterweight |
| US11884522B2 (en) | 2006-10-27 | 2024-01-30 | Grove U.S. L.L.C. | Mobile lift crane with variable position counterweight |
| CN101190769B (en) * | 2006-12-01 | 2010-05-26 | 上海比亚迪有限公司 | Heavy load balance mechanism |
| US10457530B2 (en) | 2009-08-06 | 2019-10-29 | Manitowoc Cranes, Llc | Lift crane with moveable counterweight |
| US11261064B2 (en) | 2009-08-06 | 2022-03-01 | Manitowoc Cranes, Llc | Lift crane with moveable counterweight |
| US9278834B2 (en) | 2009-08-06 | 2016-03-08 | Manitowoc Crane Group, LLC | Lift crane with moveable counterweight |
| US10179722B2 (en) | 2014-01-27 | 2019-01-15 | Manitowoc Crane Companies, Llc | Lift crane with improved movable counterweight |
| US10183848B2 (en) | 2014-01-27 | 2019-01-22 | Manitowoc Crane Companies, Llc | Height adjustment mechanism for an auxiliary member on a crane |
| US11208303B2 (en) | 2014-01-27 | 2021-12-28 | Manitowoc Crane Companies, Llc | Lift crane with improved movable counterweight |
| CN106946171A (en) * | 2017-05-11 | 2017-07-14 | 中船第九设计研究院工程有限公司 | A kind of single-cantilever-crane gantry crane counterweight self-regulation structure |
| CN108249325A (en) * | 2018-01-05 | 2018-07-06 | 惠安北酷机械科技有限公司 | A kind of full-automatic hydro-electric power project drainpipe gripping all-in-one machine |
| CN113184724A (en) * | 2021-03-16 | 2021-07-30 | 江苏政田重工股份有限公司 | Marine crane and safe operation and energy-saving control method thereof |
| CN113184724B (en) * | 2021-03-16 | 2023-12-05 | 江苏政田重工股份有限公司 | Marine crane and safe operation and energy-saving control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |