CN103771266A - Method for unloading load-carrying tackle from tower crane - Google Patents
Method for unloading load-carrying tackle from tower crane Download PDFInfo
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- CN103771266A CN103771266A CN201410006519.0A CN201410006519A CN103771266A CN 103771266 A CN103771266 A CN 103771266A CN 201410006519 A CN201410006519 A CN 201410006519A CN 103771266 A CN103771266 A CN 103771266A
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- 239000000725 suspension Substances 0.000 description 6
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- 206010057071 Rectal tenesmus Diseases 0.000 description 1
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Abstract
The invention provides a method for unloading a loading pulley from a tower crane, which comprises the following steps: connecting the loading pulley with a hoisting steel wire rope on the tower crane; the releasing or the retracting of the winding end of the hoisting steel wire rope is controlled to lower or raise the load pulley. According to the method provided by the invention, the hoisting steel wire rope on the tower crane is used for realizing the descending or the rising of the load-carrying tackle, an auxiliary hoisting machine is not needed for hoisting the load-carrying tackle, the smooth process of unloading the load-carrying tackle can be ensured, the procedure of dismantling the boom tip section of the crane arm can be saved, and the operation risk is reduced.
Description
Technical field
The present invention relates to tower machine field, especially, relate to and a kind ofly unload the method for trol(l)ey (-lly) from tower machine.
Background technology
Tower machine in working order under, tower machine is returned back to correct position.Loading trolley is moved to crane arm arm point.Remove suspension hook, hoist rope, variable-amplitude steel wire rope.Utilize wheel crane (or other tower machines) to remove crane arm arm spike knot, then utilize wheel crane (or other tower machines) to assist to skid off loading trolley, and be placed on ground (or building).After loading trolley reparation or directly, new loading trolley is arranged on crane arm, crane arm arm spike knot and hoist rope, variable-amplitude steel wire rope are finally installed.
The dismounting operation of above-mentioned loading trolley need to be by weight-lifting equipments such as wheel crane or other tower machines.If tower machine operating altitude exceeds the operating altitude of wheel crane or other tower machines, cannot realize loading trolley installing/dismounting.In addition, for by weight-lifting equipments such as wheel crane or other tower machines, the arm spike knot that must remove crane arm could skid off loading trolley and be sling by wheel crane or tower machine, in this course, field-strip to crane arm arm spike knot has larger danger conventionally, need to avoid this generic operation as far as possible.
Summary of the invention
The object of the invention is to provide a kind of and unloads the method for trol(l)ey (-lly) from tower machine, to solve in prior art, need to utilize the technical matters of auxiliary weight-lifting equipment in the time that tower machine is dismantled trol(l)ey (-lly) and trol(l)ey (-lly) is installed.
For achieving the above object, the invention provides and a kind ofly unload the method for trol(l)ey (-lly) from tower machine, comprising: trol(l)ey (-lly) is connected with the hoist rope on tower machine; Control hoist rope elevator be wound around end emitting or withdrawal so that trol(l)ey (-lly) decline or rise.
Further, trol(l)ey (-lly) is connected and is comprised with the hoist rope on tower machine: the free end of fixing hoist rope, free end is used for connecting load hook; Trol(l)ey (-lly) is suspended on hoist rope.
Further, trol(l)ey (-lly) is suspended on the free end of hoist rope and apart between the nearest support pulley of free end.
Further, the free end that supports pulley, trol(l)ey (-lly), hoist rope is along being sequentially arranged on crane arm away from the direction of tower machine control cabin.
Further, the free end of support pulley and hoist rope is arranged on the upper main chord of crane arm.
Further, control hoist rope elevator be wound around end emitting or withdrawal so that trol(l)ey (-lly) decline or rise, comprising: control hoist rope elevator be wound around end withdrawal so that trol(l)ey (-lly) rise; Remove and hinder the parts that trol(l)ey (-lly) vertically declines between main chord from crane arm.
Further, remove hinder that trol(l)ey (-lly) is parallel to each other from two of crane arm between main chord after the vertical parts that decline, also comprise: the elevator of controlling hoist rope be wound around emitting of end so that trol(l)ey (-lly) be parallel to each other from two of crane arm vertically decline between main chord.
Further, the elevator of controlling hoist rope be wound around emitting of end so that trol(l)ey (-lly) be parallel to each other from two of crane arm between main chord before vertical decline, comprise: safety rope is installed, the first end of safety rope is wrapped in two of trol(l)ey (-lly) and is on two supporting legs arranging at diagonal angle and is wound around end with the elevator of hoist rope and synchronously emit or regain to prevent that trol(l)ey (-lly) from falling, the second end of safety rope from top walk around crane arm main chord or lower main chord and form lifting force side.
Further, the hoist rope on tower machine is the hoist rope that tower machine carries.
Further, the steel rope that the hoist rope on tower machine has for the electric hoist crane being installed in advance on crane arm.
Further, be wound around emitting of end or withdrawal so that in trol(l)ey (-lly) declines or rise, keep the luffing mechanism of trol(l)ey (-lly) in disabled status at the elevator of controlling hoist rope.
The present invention has following beneficial effect:
The invention provides and a kind ofly unload the method for trol(l)ey (-lly) from tower machine, comprising: trol(l)ey (-lly) is connected with the hoist rope on tower machine; Control hoist rope elevator be wound around end emitting or withdrawal so that trol(l)ey (-lly) decline or rise.Method provided by the invention, utilize hoist rope on tower machine to realize decline or the rise of trol(l)ey (-lly), without carrying out handling trol(l)ey (-lly) by auxiliary lifting machinery, can either guarantee that the process that unloads trol(l)ey (-lly) carries out smoothly, can save again the program of removing crane arm arm spike knot, reduce operational danger.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 be according to an embodiment of the invention trol(l)ey (-lly) by the structural representation of handling.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1, the invention provides and a kind ofly unload the method for trol(l)ey (-lly) from tower machine.For by be positioned at trol(l)ey (-lly) 10 on the crane arm 50 of tower machine tune away to ground or near building on time, avoid use to assist, do not belong to the independently large-scale weight-lifting equipment of tower machine, as car hosit or other tower machines etc., the core concept that unloads the method for trol(l)ey (-lly) from tower machine provided by the invention is to utilize hoist rope 20 on the tower machine mechanism as handling trol(l)ey (-lly) 10, do like this, can prevent that on the one hand the problem that cannot dismantle trol(l)ey (-lly) 10 because tower machine height is greater than the height of car hosit or other tower machines from occurring, can avoid on the other hand dismantling the arm spike knot of crane arm, reduce the danger of unloading trol(l)ey (-lly).
For above-mentioned core concept, provided by the inventionly unload the method for trol(l)ey (-lly) from tower machine, trol(l)ey (-lly) 10 need to be connected with the hoist rope 20 on tower machine, then control hoist rope 20 elevator be wound around end (not shown) emitting or withdrawal so that trol(l)ey (-lly) 10 decline or rise.Trol(l)ey (-lly) 10 has various ways with the mode that the hoist rope 20 on tower machine is connected, for example, can make trol(l)ey (-lly) 10 and hoist rope 20 for load hook (owing to removing, so not shown) connected free end 21 is connected, the load hook that is just equivalent to the free end of hoist rope 20 to connect changes trol(l)ey (-lly) 10 into, then the elevator of controlling hoist rope 20 is wound around end (hoist rope 20 is wrapped in the one end on elevator) and emits or regain, also can say, the elevator that control is wound with above-mentioned hoist rope 20 rotates to emit or regains hoist rope 20, thereby utilize hoist rope 20 on tower machine to realize the handling of trol(l)ey (-lly) 10, convenient and swift.
As a kind of concrete embodiment, the hoist rope that the hoist rope 20 on above-mentioned tower machine carries for tower machine.That is to say, utilize the hoist rope 20 for handling weight that tower machine possesses self to realize trol(l)ey (-lly) 10.In this case, in order to guarantee the safety of handling of trol(l)ey (-lly) 10, trol(l)ey (-lly) 10 is realized and being connected of hoist rope 20 by being suspended on mode on hoist rope 20.For trol(l)ey (-lly) 10 is suspended on hoist rope 20, the free end of hoist rope 20 21 need to be fixed on crane arm 50, so that hoist rope 20 is wound around end to forming one section of lanyard free end 21 from elevator, then, trol(l)ey (-lly) 10 is suspended on hoist rope 20, thereby completes being connected of trol(l)ey (-lly) 10 and hoist rope 20.In the time that more hoist rope 20 is emitted in elevator rotation, due to the invariant position of the free end 21 of hoist rope 20, under the effect of gravity, the hitch point that trol(l)ey (-lly) 10 is suspended on hoist rope 20 moves down gradually, also more and more far away with the distance of free end 21, after hoist rope 20 is emitted certain length, trol(l)ey (-lly) 10 just can be lowered by bottom surface or the end face of other buildings that can place under repair to trol(l)ey (-lly) 10 on, complete the decline of trol(l)ey (-lly) 10.If need to promote trol(l)ey (-lly) 10, after trol(l)ey (-lly) 10 and hoist rope 20 being connected, control elevator and rotate in the opposite direction and hoist rope 20 is regained, thereby trol(l)ey (-lly) 10 is sling.
Can normally work when the handling trol(l)ey (-lly) 10 in order to guarantee hoist rope 20, avoid the equipment such as elevator to impact, and share the weight of hoist rope 20, trol(l)ey (-lly) 10 is suspended on the free end 21 of hoist rope 20 and apart between the nearest support pulley 30 of free end 21.It should be noted that herein, the jib of tower machine is according to the difference of effect, conventionally be divided into crane arm 50 and equilibrium arm (not shown), wherein, crane arm 50 for from tower machine control cabin in other words the strong point of tower machine start the longer part jib stretching out to the one end that hangs weight, trol(l)ey (-lly) 10 just moves between the butt (one end being connected with tower machine control cabin) of crane arm 50 and far-end, the free end 21 of hoist rope 20 is walked around the parts such as the pulley on trol(l)ey (-lly) 10 and is being hung the load hook that is positioned at trol(l)ey (-lly) 10 belows, and load hook and trol(l)ey (-lly) 10 are synchronized with the movement.The weight of bearing in order to share hoist rope 20, and make direction that the free end 21 of hoist rope 20 can stretch out along crane arm 50 keep basic horizontal state to stretch out, on crane arm 50, be provided with multiple pulleys that direction is arranged that stretch out along crane arm 50, select one apart from the nearest pulley of the free end 21 of hoist rope 20 as the support pulley 30 that supports hoist rope 20 handling trol(l)ey (-lly)s 10, make to support the steel rope shape V font of minimum in an angle between pulley 30 and free end 21, can save the length of the steel rope that hangs trol(l)ey (-lly) 10, promote the strength of hoist rope 20 handling trol(l)ey (-lly)s 10.Also can say, support the free end 21 of pulley 30, trol(l)ey (-lly) 10, hoist rope 20 along being sequentially arranged on crane arm 50 away from the direction of tower machine control cabin.The free end 21 that supports pulley 30 and hoist rope 20 is arranged on the upper main chord 51 of crane arm 50.
For the ease of the correlated parts of operating personal high-altitude split and assembling trol(l)ey (-lly) 10 on crane arm 50, above-mentioned support pulley 30 is apart from the nearest pulley of tower machine control cabin.In fact, operating personal decomposes the original trol(l)ey (-lly) 10 sliding on crane arm 50, so that the main body of trol(l)ey (-lly) 10 is sling by hoist rope 20 and the whole operating process of reinstalling trol(l)ey (-lly) 10 is all to complete on unsettled crane arm 50, that is to say the state of operating personal in aloft work.The nearest pulley of chosen distance tower machine control cabin is as supporting pulley 30, and the fixing position of in fact having limited the free end 21 of hoist rope 20, apart from the relatively near position of tower machine control cabin (also can be described as the butt apart from crane arm 50).
In fact,, in order to hang trol(l)ey (-lly) 10, above trol(l)ey (-lly) 10, be provided with hoisting rope 70.The two ends of hoisting rope 70 are connected with the both sides of trol(l)ey (-lly) 10, and in the middle of hoisting rope 70, hanging is on hoist rope 20.
If directly drive trol(l)ey (-lly) 10 to hang on hoist rope 20 hoisting rope 70,, in the process of lifting load carrying coaster 10, the amplitude of fluctuation of trol(l)ey (-lly) 10 can be larger, improved the hazard index of lifting process.
For this reason, method provided by the invention, utilizes movable pulley mechanism 40 that trol(l)ey (-lly) 10 is suspended on hoist rope 20.Movable pulley mechanism 40 comprises movable pulley 41 and is arranged on the suspension hook 43 of movable pulley 41 belows.Suspension hook 43 catches on hoisting rope 70 and carries trol(l)ey (-lly) 10.Utilize this movable pulley mechanism 40 can effectively reduce the shaking amplitude of trol(l)ey (-lly) 10 in lifting process, improve safety.
Be fixed for the ease of the free end 21 to hoist rope 20, before secure free end 21, need to first trol(l)ey (-lly) 10 be left near of the above-mentioned support pulley 30 nearest apart from the butt of crane arm 50, then, remove the load hook being connected with free end 21, and the free end of hoist rope 20 21 is retracted to near of trol(l)ey (-lly) 10.Afterwards, then the free end 21 of hoist rope 20 is fixed on crane arm 50 walk around the movable pulley 41 of movable pulley mechanism 40 from below after.Like this, the suspension hook 43 that is just equivalent to movable pulley mechanism 40 catches on trol(l)ey (-lly) 10, and the movable pulley 41 of movable pulley mechanism 40 is sling by hoist rope 20, and movable pulley 41 can be along with emitting with withdrawal of hoist rope 20 rotated.
The fixed form of the free end 21 of hoist rope 20 can have various ways, in order to firmly fix the free end 21 of hoist rope 20, and flow process simplifies the operation as far as possible, in method provided by the invention, utilize wire rope grip 60 free end 21 to be fixed on to the intersection of upper main chord 51 with the diagonal web member 53 of crane arm 50, utilize wire rope grip 60 that free end 21 is fixed in a corner, can more firmly fix like this hoist rope 20, and utilize wire rope grip 60 to simplify the operation course.The model of wire rope grip 60, the folder hole internal diameter of wire rope grip 60 can be selected to buy according to the external diameter of hoist rope 20 to market.
In fact, trol(l)ey (-lly) 10 is by before tower machine unloading, be to be suspended on the lower main chord 55 of crane arm 50, and slide along lower main chord 55, and the entirety of trol(l)ey (-lly) 10 is the belows that are positioned at lower main chord 55.In the present invention, owing to not needing to adopt other elevator machinery, and fixing (near the position of tower machine control cabin) of the lifting position of trol(l)ey (-lly) 10, so can only make trol(l)ey (-lly) 10 vertical lift under the effect of gravity.In order to remove being connected between trol(l)ey (-lly) 10 and crane arm 50, and for example, for fear of some parts (the coaster roller on trol(l)ey (-lly) 10, link plate and other correlated partss etc.) can hinder that trol(l)ey (-lly) 10 is parallel to each other from two of crane arm 50 vertically decline between main chord 55, in the time starting to decline trol(l)ey (-lly) 10, the elevator that need to first control hoist rope 20 is wound around the withdrawal of holding so that trol(l)ey (-lly) rise, so that the parts that operator between main chord 55 vertically declines obstruction trol(l)ey (-lly) 10 from crane arm 50 remove, guarantee that trol(l)ey (-lly) 10 successfully declines.
Hinder the parts that trol(l)ey (-lly) 10 declines having removed, afterwards, the elevator that can control hoist rope 20 be wound around emitting of end so that be parallel to each other from two of crane arm 50 with trol(l)ey (-lly) 10 vertical decline between main chord 55.
In addition, in order to improve safety, to avoid trol(l)ey (-lly) 10 in the process of handling, because the danger that trol(l)ey (-lly) falls rapidly occurs the misfunctioning of brake of elevator, the elevator of controlling hoist rope 20 be wound around emitting of end so that be parallel to each other from two of crane arm 50 with trol(l)ey (-lly) 10 between main chord 55 before vertical decline, also need to install safety rope (not shown), the first end of safety rope is connected with trol(l)ey (-lly) 10 and is wound around end with the elevator of hoist rope 20 and synchronously emits or regain to prevent that trol(l)ey (-lly) 10 from falling.Safety rope is equivalent to the pulling rope auxiliary to of trol(l)ey (-lly) 10, in the whole process of handling trol(l)ey (-lly) 10, must hold safety rope.
In order to guarantee that safety rope is connected with the stable of trol(l)ey (-lly) 10, avoid losing in the time that trol(l)ey (-lly) 10 falls suddenly rapidly and being connected of safety rope, the quantity of safety rope is two, and the first end of every safety rope is wrapped in two of trol(l)ey (-lly) 10 and is on two supporting legs arranging at diagonal angle; The second end of safety rope from top walk around crane arm 50 main chord 51 or lower main chord 55 and form lifting force side.In the process of trol(l)ey (-lly) 10 liftings, need to there is operating personal to strain all the time the lifting force side of safety rope, to guarantee the safety of trol(l)ey (-lly) 10 lifting process.In fact, safety rope can be wound around after two circles on lower main chord 55, when trol(l)ey (-lly) 10 declines, only needs Synchronous Radio rope, once trol(l)ey (-lly) 10 accelerates to decline, two circles that the tension of operating personal control safety rope is wound around can stop.
In addition, hinder the trol(l)ey (-lly) 10 vertical part declining on above-mentioned dismounting trol(l)ey (-lly) 10 time, also need to remove the variable-amplitude steel wire rope being fixed on trol(l)ey (-lly) 10, and variable-amplitude steel wire rope is fixed on the upper main chord 51 or lower main chord 55 of crane arm 50, and, in order to guarantee safety, luffing mechanism on trol(l)ey (-lly) 10 should trol(l)ey (-lly) 10 decline or the process that rises in remain the state of forbidding, in other words, before trol(l)ey (-lly) 10 is reinstalled on crane arm 50, should No starting luffing mechanism.
As the another kind of specific embodiment, the steel rope that above-mentioned hoist rope 20 can also adopt the electric hoist crane being installed in advance on crane arm 50 to have.That is to say, for the ease of the lifting to trol(l)ey (-lly) 10, an electric hoist crane can be installed on the crane arm 50 of tower machine in advance.Electric hoist crane volume is little, can be as being arranged in advance on crane arm 50 using an instrument as tower machine.Because electric hoist crane is from translator, elevator and steel rope, so can utilize the steel rope that electric hoist crane carries to carry out handling trol(l)ey (-lly) 10 as the hoist rope on tower machine.Trol(l)ey (-lly) 10 can be directly sling by the hook of electric hoist crane as the weight of electric hoist crane in such cases, and without the steel rope of dismounting electric hoist crane.This kind of method is relatively suitable for the not too high occasion of tower machine height.
For the ease of understanding, foregoing is arranged, provided by the inventionly unload the method for trol(l)ey (-lly) from tower machine, mainly comprise the steps:
Near step 1: trol(l)ey (-lly) 10 is left the nearest pulley of distance arm root on crane arm 50;
Step 2: the load hook being connected with free end 21 is removed;
Near step 3: remove the arm point latching device of hoist rope 20, regain hoist rope 20, the free end 21 of hoist rope 20 is positioned at trol(l)ey (-lly) 10;
Step 4: wear around hoist rope 20 according to position shown in Fig. 1, hoist rope 20 is walked around from top and supported pulley 30, then walk around the movable pulley 41 movable pulley mechanism 40 from below;
Step 5: the intersection that the free end of hoist rope 20 21 is fixed on to upper main chord 51 with the diagonal web member 53 of crane arm 50 by wire rope grip 60;
Step 5: utilize hoisting rope 70, trol(l)ey (-lly) 10 is connected with the suspension hook 43 of movable pulley mechanism 40;
Step 6: go out diagonal angle at the supporting leg of trol(l)ey (-lly) 10 and arrange two safety ropes, the other end of safety rope is on the lower main chord 55 of crane arm 50, at least more than two circles;
Step 7: the variable-amplitude steel wire rope being fixed on trol(l)ey (-lly) 10 is pulled down, and variable-amplitude steel wire rope is fixed on the upper main chord 51 or lower main chord 55 of crane arm 50, now Anti-breaking rope device should be in running order, to prevent that loading trolley from slipping car to arm point or arm root direction;
Step 8: close the luffing mechanism of trol(l)ey (-lly) 10, and reinstall complete front No starting at trol(l)ey (-lly) 10;
Step 9: start the lifting mechanism (elevator) of tower machine, brake after slowly promoting trol(l)ey (-lly) 10 certain altitudes, then pull down roller and correlated parts and the link plate of trol(l)ey (-lly) 10;
Step 10: again open the lifting mechanism of tower machine, slowly trol(l)ey (-lly) 10 is put down, Combined with Radiotherapy safety rope simultaneously, until put to ground or the top of building by trol(l)ey (-lly) 10.
In above-mentioned steps 10, need to, in the whole process of putting down trol(l)ey (-lly) 10, must hold safety rope, prevent misfunctioning of brake, fall rapidly and there is loading trolley, cause safety misadventure.In addition, Anti-breaking rope device is a part on trol(l)ey (-lly) 10, and its function is to prevent that trol(l)ey (-lly) 10 from slipping car to the arm point of crane arm 50 or arm root direction, causes safety misadventure.This Anti-breaking rope device is actually the clamp being arranged on trol(l)ey (-lly) 10, if trol(l)ey (-lly) 10 to the forward and backward car that slips, the web member of the lower main chord 55 of crane arm 50 can stop this clamp, thus restriction trol(l)ey (-lly) 10 slips car.
The trol(l)ey (-lly) 10 repairing or again change is reinstalled to process on crane arm 50 as follows:
The first, after trol(l)ey (-lly) 10 and the suspension hook 43 of movable pulley mechanism 40 are connected, the lifting mechanism of starting tower machine, slowly promotes trol(l)ey (-lly) 10;
The second, continue slowly to promote trol(l)ey (-lly) 10, coordinate lifting mechanism by safety rope simultaneously, be promoted to the convenient height that roller, link plate are installed;
The 3rd, install roller, the link plate of trol(l)ey (-lly) 10, and the long rope of luffing mechanism, short rope and trol(l)ey (-lly) 10 are connected;
The 4th, the wire rope grip 60 of the free end 21 of dismounting movable pulley mechanism and hoist rope 20;
The 5th, again around hoist rope 20, and free end 21 is locked to the arm point of crane arm 50; The 6th, load hook is installed to the free end 21 of hoist rope 20.
Can find out, the above-mentioned process of reinstalling trol(l)ey (-lly) 10 is antipodal with the process of unloading trol(l)ey (-lly) 10.It should be noted that, in slowly promoting trol(l)ey (-lly) 10, must regain safety rope simultaneously, to guarantee that safety rope can prevent that trol(l)ey (-lly) 10 is toward tenesmus, and, if trol(l)ey (-lly) 10 rotates because the factors such as wire rope rotating affect in the process being raised, can pull by safety rope, adjust the setting angle of trol(l)ey (-lly) 10, guarantee that the position of trol(l)ey (-lly) 10 meets installation requirement.
Utilize method provided by the invention, when hang oneself fortune trol(l)ey (-lly) from tower machine, need to be by wheel crane or other tower machines, dismounting and the installation process of trol(l)ey (-lly) are convenient and swift, and reliability is high, and program is scientific and normal, and safety is secure.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a method that unloads trol(l)ey (-lly) from tower machine, is characterized in that, comprising:
Trol(l)ey (-lly) (10) is connected with the hoist rope (20) on tower machine;
Control described hoist rope (20) elevator be wound around end emitting or withdrawal so that described trol(l)ey (-lly) (10) decline or rise.
2. method according to claim 1, is characterized in that, described trol(l)ey (-lly) (10) is connected and is comprised with the hoist rope (20) on tower machine:
The free end (21) of fixing described hoist rope (20), described free end (21) is for connecting load hook;
Described trol(l)ey (-lly) (10) is suspended on described hoist rope (20).
3. method according to claim 2, is characterized in that, described trol(l)ey (-lly) (10) is suspended between the described free end (21) and the nearest support pulley (30) of the described free end of distance (21) of described hoist rope (20).
4. method according to claim 3, it is characterized in that, the free end (21) of described support pulley (30), described trol(l)ey (-lly) (10), described hoist rope (20) is along being sequentially arranged on crane arm (50) away from the direction of tower machine control cabin.
5. method according to claim 4, is characterized in that, the free end (21) of described support pulley (30) and described hoist rope (20) is arranged on the upper main chord (51) of described crane arm (50).
6. method according to claim 1, is characterized in that, the elevator of the described hoist rope of described control (20) is wound around emitting of end or withdrawal so that described trol(l)ey (-lly) (10) declines or rises, and comprising:
The elevator of controlling described hoist rope (20) is wound around the withdrawal of holding so that described trol(l)ey (-lly) (10) rise;
Remove and hinder the parts that described trol(l)ey (-lly) (10) vertically declines between main chord (55) from crane arm (50).
7. method according to claim 6, is characterized in that, described dismounting hinder that described trol(l)ey (-lly) (10) is parallel to each other from two of described crane arm (50) between main chord (55) after the vertical parts that decline, also comprise:
The elevator of controlling described hoist rope (20) be wound around emitting of end so that described trol(l)ey (-lly) (10) be parallel to each other from two of described crane arm (50) vertically decline between main chord (55).
8. method according to claim 7, it is characterized in that, the elevator of the described hoist rope of described control (20) be wound around emitting of end so that described trol(l)ey (-lly) (10) be parallel to each other from two of described crane arm (50) between main chord (55) before vertical decline, comprising:
Safety rope is installed, the first end of described safety rope is wrapped in two of described trol(l)ey (-lly) (10) and is on two supporting legs arranging at diagonal angle and is wound around end with the elevator of described hoist rope (20) and synchronously emit or regain to prevent that described trol(l)ey (-lly) (10) from falling, the second end of described safety rope from top walk around described crane arm (50) main chord (51) or lower main chord (55) and form lifting force side.
9. method according to claim 1, is characterized in that, the hoist rope that the hoist rope (20) on described tower machine carries for described tower machine.
10. method according to claim 1, is characterized in that, the steel rope that the hoist rope (20) on described tower machine has for the electric hoist crane being installed in advance on crane arm (50).
11. methods according to claim 1, it is characterized in that, control described hoist rope (20) elevator be wound around end emitting or withdrawal so that described trol(l)ey (-lly) (10) decline or rise in, keep the luffing mechanism of described trol(l)ey (-lly) (10) in disabled status.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006519.0A CN103771266A (en) | 2014-01-07 | 2014-01-07 | Method for unloading load-carrying tackle from tower crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006519.0A CN103771266A (en) | 2014-01-07 | 2014-01-07 | Method for unloading load-carrying tackle from tower crane |
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| CN103771266A true CN103771266A (en) | 2014-05-07 |
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| CN201410006519.0A Pending CN103771266A (en) | 2014-01-07 | 2014-01-07 | Method for unloading load-carrying tackle from tower crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106865410A (en) * | 2016-10-31 | 2017-06-20 | 徐州建机工程机械有限公司 | A kind of loading trolley of derrick crane |
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| CN106865410A (en) * | 2016-10-31 | 2017-06-20 | 徐州建机工程机械有限公司 | A kind of loading trolley of derrick crane |
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