CN105084233A - Crane and method for establishing super-lifting device on crane - Google Patents
Crane and method for establishing super-lifting device on crane Download PDFInfo
- Publication number
- CN105084233A CN105084233A CN201510370062.6A CN201510370062A CN105084233A CN 105084233 A CN105084233 A CN 105084233A CN 201510370062 A CN201510370062 A CN 201510370062A CN 105084233 A CN105084233 A CN 105084233A
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- CN
- China
- Prior art keywords
- hoisting crane
- hoist rope
- crane
- secondary hoist
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a crane and a method for establishing a super-lifting device on the crane. The crane comprises a main arm (20), a rotary table (10), an auxiliary lifting winch (30) and an auxiliary lifting steel wire rope (40). The crane is characterized in that the main arm (20) and the auxiliary lifting winch (30) are installed on the rotary table (10), the first end of the auxiliary lifting steel wire rope (40) is wound around the auxiliary lifting winch (30), the second end of the auxiliary lifting steel wire rope (40) is connected to a top-joint arm (21) of the main arm (20), and therefore the super-lifting device of the crane is composed of the auxiliary lifting winch (30), the auxiliary lifting steel wire rope (40) and the rotary table (10). By the adoption of the technical scheme, a specific super-lifting device does not need to be additionally arranged on the crane, the super-lifting function can be achieved through existing components on the crane, the number of parts of the crane is reduced, multiple purposes are achieved through the crane, and the production cost is remarkably reduced.
Description
Technical field
The present invention relates to crane field, particularly, relate to a kind of method building super lifting device on hoisting crane, also relate to a kind of hoisting crane.
Background technology
Along with hoisting crane is towards ultra-large type future development, super lifting device has become the requisite component part of hoisting crane.Hoisting crane arranges super lifting device, effectively can increase the whole vehicle stability of hoisting crane, improve lifting performance.
Fig. 1 is the schematic diagram of the hoisting crane of prior art.In the hoisting crane of prior art, super lifting device mainly comprises and has surpassed mast 80, surpassed drag-line 90, surpassed oil cylinder 100 and jacking cylinder 110, the one end having surpassed mast 80 has leading sheave, the basic arm 22 of the other end and principal arm 20 is hinged, jacking cylinder 110 one end and basic arm 22 hinged, the other end is hinged with the middle part having surpassed mast 80, the epimerite arm 21 having surpassed drag-line 90 one end and principal arm 20 is hinged, the other end walks around the leading sheave that surpassed mast 80 and to have surpassed oil cylinder 100 hinged, surpassed oil cylinder 100 one end and to have surpassed drag-line 90 hinged, the other end and basic arm 22 hinged.The effect of jacking cylinder 110 props or regain to have surpassed mast 80, and provide support having surpassed mast in working order.The effect having surpassed oil cylinder 100 makes to have surpassed drag-line 90 have certain predetermincd tension by shrinking the piston rod having surpassed oil cylinder 100, this predetermincd tension acts on epimerite arm 21, a pulling force is upwards produced to principal arm 20, thus reduces the amount of deflection of principal arm 20, thus improve hoisting capacity.The effect having surpassed mast 80 makes to have surpassed drag-line 90 to have a certain degree with principal arm 20, thus promote predetermincd tension to the action effect upwards of principal arm 20.
The number of assembling steps of the super apparatus of prior art comprises: jib is reached the most long-armed operating mode, by hinged to the first end and epimerite arm that have surpassed drag-line, the second end having surpassed drag-line is walked around leading sheave, operate jacking cylinder by surpassed mast prop, by surpassed drag-line second end with surpassed oil cylinder hinged, operate and surpassed oil cylinder and make to have surpassed drag-line and produce certain predetermincd tension.
Mainly there is following defect in the super lifting device of prior art:
One, having surpassed drag-line is regular length, is only applicable to the operating mode of single brachium, i.e. the most long-armed frame operating mode; And in moderate-length jib operating mode, because the change of jib length, by jib, surpassed drag-line, surpassed mast, surpassed oil cylinder composition two triangles can find out, the length having surpassed drag-line also needs change, otherwise surpass drag-line and cannot produce predetermincd tension, cannot realize reducing the amount of deflection of jib, improving the object of hoisting capacity, and the change surpassing this length of drag-line is obviously cannot be realized by the length variations having surpassed oil cylinder, therefore prior art is poor for applicability;
Two, when driving cycle is with lifting change working, need dismounting super lifting device, comprise that dismounting surpass drag-line, dismounting has surpassed oil cylinder, operate jacking cylinder and prop having surpassed mast or withdrawal etc., dismounting more complicated;
Three, hoisting crane needs to increase separately the cost having surpassed mast, surpassed drag-line, surpassed oil cylinder, jacking cylinder etc., and cost is higher.
Summary of the invention
The object of this invention is to provide a kind of method building super lifting device on hoisting crane, the method can build super lifting device based on the parts that hoisting crane is intrinsic, significantly reduces the cost of hoisting crane.
To achieve these goals, the invention provides a kind of method building super lifting device on hoisting crane, described hoisting crane comprises turntable, principal arm, pair hoist elevator and secondary hoist rope, described principal arm and the pair elevator that hoists is arranged on described turntable, wherein, described method comprises: drawn from the described pair elevator that hoists and be connected to the epimerite arm of described principal arm by described secondary hoist rope, building the super lifting device of described hoisting crane with hoisted by described pair elevator, secondary hoist rope and turntable.
Preferably, described method also comprises: the detecting unit arranging the predetermincd tension for detecting described secondary hoist rope on described hoisting crane.
Preferably, described method also comprises: be electrically connected with the display unit be arranged in described crane cab by described detecting unit, with the predetermincd tension enabling this display unit show described secondary hoist rope.
Preferably, described detecting unit comprises pulling force sensor, and described method also comprises: the first end of this pulling force sensor is connected to described epimerite arm, described secondary hoist rope is connected to the second end of described pulling force sensor.
Preferably, described method also comprises: the first end of described pulling force sensor is connected to described epimerite arm by drag-line.
The present invention also provides a kind of hoisting crane, comprise principal arm, turntable, pair hoist elevator and secondary hoist rope, wherein, described principal arm and the pair elevator that hoists is arranged on described turntable, the first end of described secondary hoist rope is wrapped in described pair and hoists on elevator, second end of described secondary hoist rope is connected to the epimerite arm of described principal arm, is formed the super lifting device of described hoisting crane to make hoist elevator, secondary hoist rope and turntable of described pair.
Preferably, described hoisting crane also comprises the detecting unit of the predetermincd tension for detecting described secondary hoist rope.
Preferably, described hoisting crane comprises the display unit be arranged in this crane cab, and this display unit is electrically connected with described detecting unit, can show the predetermincd tension of described secondary hoist rope.
Preferably, described detecting unit comprises pulling force sensor, and the first end of this pulling force sensor is connected to described epimerite arm, and the second end of this pulling force sensor is connected to the second end of described secondary hoist rope.
Preferably, described hoisting crane also comprises drag-line, and the first end of this drag-line is connected to described epimerite arm, and the second end of this drag-line is connected to the first end of described pulling force sensor.
By technique scheme, make without the need to setting up special super lifting device on hoisting crane, the parts utilizing hoisting crane intrinsic can realize having surpassed function, decrease the amount of parts of hoisting crane, achieve " one multiplex ", significantly reduce productive costs.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of the hoisting crane of prior art;
Fig. 2 is the schematic diagram of the hoisting crane according to one embodiment of the present invention;
Fig. 3 is the enlarged drawing of part A in Fig. 2;
Fig. 4 is the B direction view of Fig. 3.
Description of reference numerals
10 turntable 20 principal arm 21 epimerite arms
22 basic arm 30 pairs hoist the secondary hoist rope of elevator 40
50 pulling force sensor 60 drag-line 70 covers of wedge
80 surpass mast 90 to have surpassed drag-line and 110 surpassed oil cylinder
110 jacking cylinders
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
As shown in Figure 2, according to an aspect of the present invention, a kind of hoisting crane is provided, comprise principal arm 20, turntable 10, pair hoist elevator 30 and secondary hoist rope 40, principal arm 20 and the pair elevator 30 that hoists is arranged on turntable 10, and the first end of secondary hoist rope 40 is wrapped in pair and hoists on elevator 30, and the second end of secondary hoist rope 40 is connected to the epimerite arm 21 of principal arm 20, a triangle is formed, to form the super lifting device of hoisting crane to make hoist elevator 30, secondary hoist rope 40 and turntable 10 of pair.
It should be noted that, the present invention's said " the second end of secondary hoist rope 40 is connected to epimerite arm 21 " has both comprised the situation that this second end is directly connected in epimerite arm 21, also comprises this second end is connected to epimerite arm 21 indirectly situation by other parts.
Should be understood that, hoist elevator 30 and secondary hoist rope 40 of turntable 10, pair is parts intrinsic on hoisting crane, and pair hoists elevator 30 and the secondary hoist rope 40 only just use when needs install auxiliary additional usually, and other situation is not generally enabled.By technique scheme, making without the need to setting up special super lifting device on hoisting crane, utilizing parts intrinsic on hoisting crane can realize having surpassed function, decreasing the amount of parts of hoisting crane, achieve one multiplex, significantly reduce productive costs.
When principal arm 20 is in different length operating modes, the predetermincd tension of secondary hoist rope 40 is required also different.In order to the size enabling operating personal grasp predetermincd tension, preferably, hoisting crane of the present invention is also provided with the detecting unit of the predetermincd tension for detecting secondary hoist rope 40.
More preferably, described hoisting crane comprises the display unit (not shown) be arranged in this crane cab, and this display unit is electrically connected with described detecting unit, can show the predetermincd tension of secondary hoist rope 40.In this way, make operating personal can be observed the size of predetermincd tension by display unit, thus regulate predetermincd tension, with satisfied different principal arm length operating mode to the requirement of predetermincd tension by operating the pair elevator 30 that hoists.Here, display unit is arranged in the control cabin of hoisting crane, belongs to the intrinsic parts on hoisting crane.
Described detecting unit can be various suitable form, and can be arranged on the position of any appropriate on hoisting crane.As a kind of embodiment, as shown in Figure 3 and Figure 4, described detecting unit comprises pulling force sensor 50, and the first end of this pulling force sensor 50 is connected to epimerite arm 21, and the second end of this pulling force sensor 50 is connected to the second end of secondary hoist rope 40.It should be noted that, " first end of pulling force sensor 50 is connected to epimerite arm 21 " mentioned here has both comprised the situation that this first end is directly connected in epimerite arm 21, also comprises this first end is connected to epimerite arm 21 indirectly situation by other parts.
Conveniently pulling force sensor 50 is connected to epimerite arm 21, preferably, as shown in Figure 3 and Figure 4, described hoisting crane also comprises drag-line 60, and the first end of this drag-line 60 is connected to epimerite arm 21, and the second end of this drag-line 60 is connected to the first end of pulling force sensor 50.More specifically, as shown in Figure 3, the two ends of drag-line 60 are respectively arranged with connecting strap 61, the first end of drag-line 60 by the hinge through connecting strap 61 in epimerite arm 21, the second end of drag-line 60 by the hinge through connecting strap 61 and pulling force sensor 50 in the first end of pulling force sensor 50.
The conveniently connection of secondary hoist rope 40 and pulling force sensor 50 and dismounting, preferably, as shown in Figure 3 and Figure 4, the second end of secondary hoist rope 40 is connected to the second end of pulling force sensor 50 by cover of wedge 70.Cover of wedge is the common parts of this area, mainly comprises voussoir and housing.More specifically, in the present invention, the second end of secondary hoist rope 40 is enclosed within the voussoir of cover of wedge 70, the second end of pulling force sensor 50 by through the housing of cover of wedge 70 and the hinge of pulling force sensor 50 in cover of wedge 70.
Hoisting crane of the present invention by driving cycle to the switching process lifting operating mode is: first principal arm 20 is extended certain length, in the process, start the pair elevator 30 that hoists rotate forward or pull the pair elevator 30 that hoists to rotate forward by secondary hoist rope 40, secondary hoist rope 40 stretches out with epimerite arm 21, until principal arm 20 stops extending; Then control hydraulic system makes pair hoist elevator 30 contrarotation, now secondary hoist rope 40 pair hoist elevator 30 effect under produce predetermincd tension, this predetermincd tension acts on epimerite arm 21, produces a pulling force upwards to principal arm 20, thus reduce the amount of deflection of principal arm 20, improve hoisting capacity.
Hoisting crane of the present invention by lifting the switching process of operating mode to driving cycle is: shrink principal arm 20, and in principal arm 20 contraction process, control hydraulic system makes pair hoist elevator 30 contrarotation, until principal arm 20 is retracted completely.
In hoisting crane of the present invention, without the need to dismounting when super lifting device is changed between driving cycle and lifting operating mode, easy and simple to handle.Further, secondary hoist rope can change (unnecessary wirerope-winding hoists in elevator in pair) along with the change of principal arm length, and be applicable to all principal arm length operating modes, applicability is wider.
According to a further aspect in the invention, a kind of method building super lifting device on hoisting crane is provided, described hoisting crane comprises turntable 10, principal arm 20, pair hoist elevator 30 and secondary hoist rope 40, principal arm 20 and the pair elevator 30 that hoists is arranged on turntable 10, described method comprises: drawn from the pair elevator 30 that hoists and be connected to the epimerite arm 21 of principal arm 20 by secondary hoist rope 40, to be built the super lifting device of this hoisting crane by secondary hoist elevator 30, secondary hoist rope 40 and turntable 10.
In order to detect the predetermincd tension on secondary hoist rope 40, described method also comprises: the detecting unit arranging the predetermincd tension for detecting secondary hoist rope 40 on hoisting crane.
In order to make predetermincd tension controlled, described method also comprises: be electrically connected with the display unit be arranged in crane cab by detecting unit, with the predetermincd tension enabling this display unit show secondary hoist rope 40.
As a kind of embodiment, described detecting unit comprises pulling force sensor 50, and described method also comprises: the first end of this pulling force sensor 50 is connected to epimerite arm 21, secondary hoist rope 40 is connected to the second end of pulling force sensor 50.
For the ease of the installation of pulling force sensor 50, described method also comprises: the first end of pulling force sensor 50 is connected to epimerite arm 21 by drag-line 60.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. one kind builds the method for super lifting device on hoisting crane, described hoisting crane comprises turntable (10), principal arm (20), pair hoists elevator (30) and secondary hoist rope (40), described principal arm (20) and the pair elevator (30) that hoists is arranged on described turntable (10), it is characterized in that, described method comprises: described secondary hoist rope (40) drawn from the described pair elevator (30) that hoists and be connected to the epimerite arm (21) of described principal arm (20), with the elevator (30) that hoisted by described pair, secondary hoist rope (40) and turntable (10) build the super lifting device of described hoisting crane.
2. method according to claim 1, is characterized in that, described method also comprises: the detecting unit arranging the predetermincd tension for detecting described secondary hoist rope (40) on described hoisting crane.
3. method according to claim 2, it is characterized in that, described method also comprises: be electrically connected with the display unit be arranged in described crane cab by described detecting unit, with the predetermincd tension enabling this display unit show described secondary hoist rope (40).
4. method according to claim 2, it is characterized in that, described detecting unit comprises pulling force sensor (50), described method also comprises: the first end of this pulling force sensor (50) is connected to described epimerite arm (21), described secondary hoist rope (40) is connected to the second end of described pulling force sensor (50).
5. method according to claim 4, is characterized in that, described method also comprises: the first end of described pulling force sensor (50) is connected to described epimerite arm (21) by drag-line (60).
6. a hoisting crane, comprise principal arm (20), turntable (10), pair hoists elevator (30) and secondary hoist rope (40), it is characterized in that, described principal arm (20) and the pair elevator (30) that hoists is arranged on described turntable (10), the first end of described secondary hoist rope (40) is wrapped in described pair and hoists on elevator (30), second end of described secondary hoist rope (40) is connected to the epimerite arm (21) of described principal arm (20), to hoist elevator (30) to make described pair, secondary hoist rope (40) and turntable (10) form the super lifting device of described hoisting crane.
7. hoisting crane according to claim 6, is characterized in that, described hoisting crane also comprises the detecting unit of the predetermincd tension for detecting described secondary hoist rope (40).
8. hoisting crane according to claim 7, is characterized in that, described hoisting crane comprises the display unit be arranged in this crane cab, and this display unit is electrically connected with described detecting unit, can show the predetermincd tension of described secondary hoist rope (40).
9. hoisting crane according to claim 8, it is characterized in that, described detecting unit comprises pulling force sensor (50), the first end of this pulling force sensor (50) is connected to described epimerite arm (21), and second end of this pulling force sensor (50) is connected to the second end of described secondary hoist rope (40).
10. hoisting crane according to claim 9, it is characterized in that, described hoisting crane also comprises drag-line (60), and the first end of this drag-line (60) is connected to described epimerite arm (21), and second end of this drag-line (60) is connected to the first end of described pulling force sensor (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370062.6A CN105084233A (en) | 2015-06-29 | 2015-06-29 | Crane and method for establishing super-lifting device on crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370062.6A CN105084233A (en) | 2015-06-29 | 2015-06-29 | Crane and method for establishing super-lifting device on crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105084233A true CN105084233A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510370062.6A Pending CN105084233A (en) | 2015-06-29 | 2015-06-29 | Crane and method for establishing super-lifting device on crane |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002193588A (en) * | 2000-12-28 | 2002-07-10 | Sumitomo Heavy Industries Construction Crane Co Ltd | Attachment support device for crane |
| EP1428788A1 (en) * | 2002-12-10 | 2004-06-16 | Liebherr-Werk Ehingen GmbH | Telescopic jib |
| DE102005049606A1 (en) * | 2005-10-17 | 2007-04-19 | Liebherr-Werk Ehingen Gmbh | Crane vehicle for assembling wind turbines in wind farm, has connector arranged between telescopic jib and auxiliary jib, where auxiliary jib is pivotable around rotary axis of connector and is designed as lattice mast |
| CN101021731A (en) * | 2006-09-15 | 2007-08-22 | 上海三一科技有限公司 | Crawler crane torque controlling method and apparatus under super lifting working condition |
| EP1657211B1 (en) * | 2004-11-16 | 2008-12-03 | Liebherr-Werk Ehingen GmbH | Crane jib |
| CN102126678A (en) * | 2010-12-31 | 2011-07-20 | 徐州重型机械有限公司 | Crane and super-lifting and tensioning control system and method thereof |
| CN103738865A (en) * | 2013-12-14 | 2014-04-23 | 中联重科股份有限公司 | Auxiliary arm single mast type super lifting device |
-
2015
- 2015-06-29 CN CN201510370062.6A patent/CN105084233A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002193588A (en) * | 2000-12-28 | 2002-07-10 | Sumitomo Heavy Industries Construction Crane Co Ltd | Attachment support device for crane |
| EP1428788A1 (en) * | 2002-12-10 | 2004-06-16 | Liebherr-Werk Ehingen GmbH | Telescopic jib |
| EP1657211B1 (en) * | 2004-11-16 | 2008-12-03 | Liebherr-Werk Ehingen GmbH | Crane jib |
| DE102005049606A1 (en) * | 2005-10-17 | 2007-04-19 | Liebherr-Werk Ehingen Gmbh | Crane vehicle for assembling wind turbines in wind farm, has connector arranged between telescopic jib and auxiliary jib, where auxiliary jib is pivotable around rotary axis of connector and is designed as lattice mast |
| CN101021731A (en) * | 2006-09-15 | 2007-08-22 | 上海三一科技有限公司 | Crawler crane torque controlling method and apparatus under super lifting working condition |
| CN102126678A (en) * | 2010-12-31 | 2011-07-20 | 徐州重型机械有限公司 | Crane and super-lifting and tensioning control system and method thereof |
| CN103738865A (en) * | 2013-12-14 | 2014-04-23 | 中联重科股份有限公司 | Auxiliary arm single mast type super lifting device |
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Application publication date: 20151125 |
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