CN2871487Y - Heavy-arm and amplitude-variable crane tracted by flexible inhaul cable - Google Patents
Heavy-arm and amplitude-variable crane tracted by flexible inhaul cable Download PDFInfo
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- CN2871487Y CN2871487Y CN 200520143650 CN200520143650U CN2871487Y CN 2871487 Y CN2871487 Y CN 2871487Y CN 200520143650 CN200520143650 CN 200520143650 CN 200520143650 U CN200520143650 U CN 200520143650U CN 2871487 Y CN2871487 Y CN 2871487Y
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- rope
- hoisting
- fixed
- crane
- shears
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Abstract
The utility model relates to a flexible travel cable boom luffing hoisting machinery, which comprises a hoisting body, which makes the hoist wire rope pass the main lifting tools to reel on an A-bracket of the boom directly or through a rope tool, or passing the A-bracket, fix to the platform. The advantage of the utility model is that the hoisting machinery after renovation, has the reeling mode that if the luffing cable force increment is increased by the lifting capacity, the luffing cable force increment will be assumed by the wire rope and the hoist rope; owing to the change of the hoist rope multiplying factor, when the lifting altitude is inadequate, the relaying rope on the rope drum of the auxiliary hoisting member can be acted for compensation, thus in the allowable conditions of hoisting machinery metallic structures, the abundance capacity within nominal torque can be realized without changing the luffing system hoisting member, thus improve the lifting capacity within the nominal torque amplitude.
Description
Technical field
The utility model relates to a kind of hoisting crane, especially relates to a kind of hoisting crane of flexible cable traction crane arm luffing.
Background technology
At present, the known root axle swing of being fixed around relative board by flexible cable traction, crane arm realizes the hoisting crane of luffing, and its anti-moment capacity that leans forward is a constant.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 reduce along with the reducing proportion in nominal moment of amplitude (load hook is to crane rotation central horizontal distance), also promptly: the hoisting moment of lifting article should increase along with the reducing proportion in moment is leaned forward in setting of amplitude with interior in the nominal torque magnitude.And the characteristic formulation criterion of its load-carrying ability of this type of hoisting crane is: with interior any amplitude, the peak load of lifting by crane this amplitude is one and sets constant in the nominal torque magnitude.Thereby this type of hoisting crane the anti-moment capacity that leans forward is not fully utilized during with interior work in the nominal torque magnitude.Why not setting maximum hoisting moment for this in the moment that leans forward of nominal torque magnitude during with interior lifting load on manufacturing and designing, mainly is the economy of consideration cost of product.In general goliath is comparatively expensive commodity, usually only purchases for special several times hoisting capacity demand spends huge sums in the building.If can be under the condition that former hoisting crane metal construction, operating unit allow, adopt reasonable method that it is transformed, make this hoisting crane nominal torque magnitude obtain utilizing with the interior part anti-ability of leaning forward more than needed, just can suitably improve the nominal torque magnitude with interior load-carrying ability, but yet there are no the report of all relevant this respects.
The utility model content
It is a kind of at the hoisting crane of nominal torque magnitude with the flexible cable traction crane arm luffing of interior suitable raising load-carrying ability that the purpose of the utility model is to provide, and makes such hoisting crane nominal torque magnitude obtain utilizing with the interior part anti-ability of leaning forward more than needed.
For achieving the above object, the utility model adopts following technical proposals:
The hoisting crane of flexible cable traction crane arm luffing described in the utility model, it comprises the hoisting crane body, it is characterized in that: a part of hoist rope that will walk around hoisting crane body master suspender is fixed on the Shears after walking around crane arm directly or by relay rope tool, or is fixed in board after walking around Shears again.
Described relay rope tool is made of with the equalizer pulley assembly that is used to be connected hoist rope and relay rope the relay rope.
When the relay rope on the described relay rope tool was fixed in board, its end was fixed in certain attachment point of board, or was fixed in the secondary hoisting drum on the board.
Relay rope on the described relay rope tool is intertwined and connected between equalizer pulley assembly, crane arm, Shears, board with the multiplying power of needs.
Advantage of the present utility model just is improved hoisting crane, this winding structure mode of hoist rope or relay rope tool, and the luffing drag-line power increment that is caused by the hoisting capacity increase is born by hoist rope or relay rope; Because the change of hoist rope multiplying power, when causing lifting altitude not enough, folding and unfolding by the relay rope that is fixed in the auxiliary hoisting mechanism reel compensates, thereby under the condition that the hoisting crane metal construction allows, can change changing-breadth system and lifting mechanism, be implemented in the nominal torque magnitude and utilized, thereby improved the nominal torque magnitude with interior load-carrying ability with the interior part anti-ability of leaning forward more than needed.
Description of drawings
Fig. 1, Fig. 2 are structure principle charts of the present utility model.
Fig. 3 is that the part hoist rope of main suspender among the 1st embodiment of the utility model is directly walked around the steel rope canoe figure that is wound in Shears behind the crane arm.
Fig. 4 is that the part hoist rope of main suspender among the 2nd embodiment of the utility model is wound in relay rope tool, and an end was fixed in Shears after the relay rope was walked around crane arm, and the other end is walked around the steel rope canoe figure that is fixed in the auxiliary hoisting mechanism reel behind the Shears.
Fig. 5 is that the part hoist rope of main suspender among the 3rd embodiment of the utility model is wound in relay rope tool, the relay rope is walked around behind the crane arm end and is walked around Shears and return and be fixed in crane arm, and the other end is walked around the steel rope canoe figure that is fixed in the auxiliary hoisting mechanism reel behind the Shears.
Fig. 6 is that the part hoist rope of main suspender among the 4th embodiment of the utility model is wound in relay rope tool, relay rope one end is fixed in the equalizer pulley group of relay rope tool, and the other end is walked around the steel rope canoe figure that is fixed in the auxiliary hoisting mechanism reel behind crane arm and the Shears.
The specific embodiment
As shown in Figure 1, a part of hoist rope 2 of walking around hoisting crane body master suspender 1 relay rope 7 that is intertwined and connected in equalizer pulley assembly 8, with equalizer pulley assembly 8 that is intertwined and connected is walked around crane arm 4, after walking around Shears 5 again, one end is fixed in board 6 certain attachment point (or being fixed in Shears 5), and the other end is fixed in the secondary hoisting drum 9 (or being fixed in Shears 5) on the board 6; The increment of the luffing drag-line power that causes owing to the increase of hoisting capacity can be born by relay rope 7, thereby is determining need not to change changing-breadth system under the condition that former hoisting crane metal construction allows; When because the change of the multiplying power of hoist rope 2, when causing lifting altitude not enough, can compensate by the folding and unfolding of the relay rope 7 that is fixed in auxiliary hoisting mechanism reel 9, thereby also need not change lifting mechanism and can be implemented in of the utilization of nominal torque magnitude, thereby realize improving the purpose of nominal torque magnitude with interior load-carrying ability with the interior part anti-ability of leaning forward more than needed.
As shown in Figure 2, a part of hoist rope 2 of walking around hoisting crane body master suspender 1 is directly walked around crane arm 4, be fastened in Shears 5 (or walk around Shears 5 again be fastened) in board 6; The increment of the luffing drag-line power that causes owing to the increase of hoisting capacity can be born by hoist rope 2, thereby determining under the condition that former hoisting crane metal construction allows, need not change changing-breadth system and can be implemented in of the utilization of nominal torque magnitude, thereby realize suitably improving the purpose of nominal torque magnitude with interior load-carrying ability with the interior part anti-ability of leaning forward more than needed.
Embodiment 1:
As shown in Figure 3, a part of hoist rope 2 of walking around hoisting crane body master suspender 1 is directly walked around crane arm 4, be fastened on Shears 5, the end that pulley in the frame of broken lines 10 or assembly pulley are fixed in crane arm 4; Pulley or assembly pulley in the frame of broken lines 11 are fixed on the Shears 5.
Embodiment 2:
As shown in Figure 4, a part of hoist rope 2 of walking around hoisting crane body master suspender 1 is connected in equalizer pulley assembly 8, the relay rope 7 that is attached thereto is walked around crane arm 4, after the one end is walked around Shears 5 again, is fixed on the secondary hoisting drum 9 on the board 6; Its other end is fixed in Shears 5 tops, the end that pulley in the frame of broken lines 12 or assembly pulley are fixed in crane arm 4; Pulley or assembly pulley in the frame of broken lines 13 are fixed on the Shears 5.
Embodiment 3:
As shown in Figure 5, a part of hoist rope 2 of walking around hoisting crane body master suspender 1 is connected in equalizer pulley assembly 8, the relay rope 7 that is attached thereto is walked around crane arm 4, after the one end is walked around Shears 5 again, is fixed on the secondary hoisting drum 9 on the board 6; Its other end is walked around and is returned behind the pulley on Shears 5 tops and be fixed in crane arm 4 upper ends, the end that pulley in the frame of broken lines 14 or assembly pulley are fixed in crane arm 4; Pulley or assembly pulley in the frame of broken lines 15 are fixed on the Shears 5, and pulley or assembly pulley in the frame of broken lines 16 are fixed in main suspender 1.
Embodiment 4:
As shown in Figure 6, a part of hoist rope 2 of walking around hoisting crane body master suspender 1 is connected in equalizer pulley assembly 8, relay rope 7 one ends are fixed in equalizer pulley assembly 8, the other end walk around crane arm 4, again walk around Shears 5 after, be fixed on the secondary hoisting drum 9 on the board 6 end that pulley in the frame of broken lines 17 or assembly pulley are fixed in crane arm 4; Pulley or assembly pulley in the frame of broken lines 18 are fixed on the Shears 5.
Claims (4)
1, a kind of hoisting crane of flexible cable traction crane arm luffing, it comprises the hoisting crane body, it is characterized in that: a part of hoist rope (2) that will walk around hoisting crane body master suspender (1) is fixed on the Shears (5) after walking around crane arm (4) directly or by relay rope tool (3), or walks around Shears (5) again and be fixed on the board (6).
2, hoisting crane according to claim 1 is characterized in that: described relay rope tool (3) is by relay rope (7) and equalizer pulley assembly (8) formation that is used to be connected hoist rope (2) and relay rope (7).
3, hoisting crane according to claim 1 is characterized in that: the relay rope (7) on the described relay rope tool (3) is when being fixed in board, and its end is fixed in certain attachment point of board (6), or is fixed in the secondary hoisting drum (9) on the board (6).
4, hoisting crane according to claim 1 is characterized in that: the relay rope (7) on the described relay rope tool (3) is intertwined and connected between (6) at equalizer pulley assembly (8), crane arm (4), Shears (5), board with the multiplying power of needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143650 CN2871487Y (en) | 2005-12-23 | 2005-12-23 | Heavy-arm and amplitude-variable crane tracted by flexible inhaul cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143650 CN2871487Y (en) | 2005-12-23 | 2005-12-23 | Heavy-arm and amplitude-variable crane tracted by flexible inhaul cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871487Y true CN2871487Y (en) | 2007-02-21 |
Family
ID=37739833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143650 Expired - Fee Related CN2871487Y (en) | 2005-12-23 | 2005-12-23 | Heavy-arm and amplitude-variable crane tracted by flexible inhaul cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871487Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016055025A3 (en) * | 2014-10-11 | 2016-06-02 | 徐州重型机械有限公司 | Crane operation range compensation method and apparatus |
| CN107215791A (en) * | 2014-01-10 | 2017-09-29 | 伊特里克公司 | Double-cantilever rotary base crane and ship comprising same |
-
2005
- 2005-12-23 CN CN 200520143650 patent/CN2871487Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215791A (en) * | 2014-01-10 | 2017-09-29 | 伊特里克公司 | Double-cantilever rotary base crane and ship comprising same |
| CN107215791B (en) * | 2014-01-10 | 2018-11-06 | 伊特里克公司 | Double-cantilever rotary base crane and ship comprising same |
| WO2016055025A3 (en) * | 2014-10-11 | 2016-06-02 | 徐州重型机械有限公司 | Crane operation range compensation method and apparatus |
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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 |