CN102602827B - Rope length adjusting method of super-lifting device of crane - Google Patents
Rope length adjusting method of super-lifting device of crane Download PDFInfo
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- CN102602827B CN102602827B CN201210066344.3A CN201210066344A CN102602827B CN 102602827 B CN102602827 B CN 102602827B CN 201210066344 A CN201210066344 A CN 201210066344A CN 102602827 B CN102602827 B CN 102602827B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 31
- 239000004020 conductor Substances 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 14
- 238000004804 winding Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
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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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a rope length adjusting method of a super-lifting device of a crane, which comprises the following steps: s1, detecting the rotated angle of the winch (76) by using a detection device (771) and detecting the code value of the current rotation position of the winch (76) by using an identification device; s2, firstly, judging whether the length of the steel wire rope (2) needs to be adjusted or not by comparing the second target value with the coded value which represents the current rotation position of the winch (76) and is identified by each identification device, and then correspondingly adjusting the action of the winch (76) according to the comparison result of the first target value and the angle value which is detected by each detection device (771) and is rotated by the winch (76) so as to adjust the length of the steel wire rope (2); the first target value is a preset angle value rotated by the winch (76), and the second target value is a preset code value of the rotation position of the winch (76). According to the method, through the matching of the detection device and the identification device, more accurate and intelligent judgment can be realized.
Description
Technical field
The present invention relates to super lifting device field, particularly, relate to a kind of super lifting device of hoisting crane and the hoisting crane of this super lifting device of use.
Background technology
Along with the development of the industries such as wind-powered electricity generation, nuclear power, chemical industry, parts modularization and maximization day by day, increasing to the demand of hoister in large tonnage, this requires hoisting crane to have higher lifting altitude and lifted load.Therefore, for example the hoisting crane of conventional telescopic boom just towards maximization future development.But higher lifting altitude and heavy lifted load will cause the component on principal arm shear direction larger, make the amount of deflection of principal arm in luffing plane larger, and the principal arm less stable of plane of rotation.For this problem, even also cannot address the above problem by increasing the thinkings such as principal arm length, optimization principal arm shape, the principal arm sectional dimension that increases, raising principal arm strength of material, therefore need be by auxiliary device, promote principal arm lifting altitude and lifting capacity by improving arm force-bearing situation, to meet the requirement of market to hoister in large tonnage.Thereby a kind of super lifting device effectively addressing the above problem has been born.
Wherein, a kind of super lifting device of the prior art mainly forms by having surpassed mast, front tensioner mechanism and rear tensioner mechanism.Surpass mast the inner and be articulated with basic arm, one end of rear tensioner mechanism connects turntable, the other end is connected with the outer end that has surpassed mast, is connected, and can carries out by elevator the folding and unfolding operation of steel rope and be arranged on the steel rope that has surpassed the front tensioner mechanism on mast with boom system.Like this, when after principal arm load, super lifting device can by the fractional load of principal arm along the axial action that surpass mast direction on basic arm, thereby further improve the force-bearing situation of crane arm, performance and the carrying of hoisting crane are provided, make the operation of hoisting crane more stable.
But; also there are some problems in the super lifting device in currently available technology; for example in super lifting device, the row of elevator rope is more random; often can there is the loose and mixed and disorderly phenomenon of steel rope; be unfavorable for the rope capacity on tensioner mechanism before accurately controlling, thereby cannot avoid left and right sides rope capacity inconsistent, more cannot effectively regulate the problems such as arm side sway; thereby effect and the practicality of super lifting device are affected, the lifting potential of performance hoisting crane that cannot be maximum.
Summary of the invention
An object of the present invention is to provide a kind of super lifting device of hoisting crane, the wire rope winding rule of this super lifting device, closely, for the length that realizes accurate control steel rope is created prerequisite.
Another object of the present invention a kind of hoisting crane is provided, this hoisting crane uses super lifting device provided by the invention.
To achieve these goals, the invention provides a kind of super lifting device of hoisting crane, this super lifting device comprises and has surpassed mast and this has been installed at the elevator having surpassed on mast, on the boom system of described hoisting crane, be provided with jib pulley gear, the steel rope of drawing from described elevator is through described jib pulley gear and draw back mast described surpassing, on described super lifting device, also comprise the compensating device that regulates described tightness of steel wire rope, draw back the described described steel rope that has surpassed mast and be connected with this compensating device.
Preferably, described compensating device comprises compensating cylinder, and the first end of this compensating cylinder is connected to described having surpassed on mast, and the second end is connected with described steel rope.
Preferably, the first end of described compensating cylinder is fixed on the described first end that has surpassed mast, this has surpassed on the second end of mast and is provided with and has surpassed pulley gear, and the described steel rope of drawing from described jib pulley gear is connected with the second end of described compensating cylinder after pulley gear through this is super.
Preferably, the described pulley gear that surpassed comprises the multiple pulleys that surpassed that are arranged side by side, and described jib pulley gear comprises the multiple jib pulleys that are arranged side by side accordingly, and described steel rope is successively through multiple jib pulleys and multiple pulley that surpassed.
Preferably, described elevator is arranged on the described first end that has surpassed mast, and this second end that has surpassed mast is provided with conductor rope pulley, and the steel rope of drawing from described elevator is guided described jib pulley gear into through this conductor rope pulley.
Preferably, described super lifting device comprises Ya Sheng mechanism, and Gai Yasheng mechanism can be pressed on described steel rope on described conductor rope pulley.
Preferably, described super lifting device is provided with catch gear, and this catch gear can the described elevator of release ground locking.
Preferably, described super lifting device comprises the long detecting device of rope for described elevator, and the long detecting device of this rope comprises the detecting device of the angle turning over for detection of described elevator, and for identifying the means of identification of the current turned position of described elevator.
Preferably, the described mast that surpassed is symmetrically arranged two, these two have surpassed mast and have been pivotally mounted on mast support, each described surpassed to be provided with on mast make described two to surpass that mast approaches or the rotation oil cylinder of pivotable remotely, the first end of this rotation oil cylinder is hinged on described having surpassed on mast, and the other end is hinged on described mast support.
Preferably, described mast support is hinged on the basic arm of described hoisting crane, and described super lifting device comprises amplitude oil cylinder, and one end of this amplitude oil cylinder is hinged on described basic arm, and the other end is hinged on described mast support.
According to a further aspect in the invention, provide a kind of hoisting crane, described hoisting crane comprises the super lifting device of hoisting crane provided by the invention.
Preferably, described hoisting crane comprises and is arranged on the turntable on chassis and is arranged on the boom system on this turntable, this boom system comprises basic arm, along the flexible principal arm of basic arm be arranged on the truss arm of this principal arm head, one end of described super lifting device is connected on described basic arm, and described jib pulley gear is arranged on the head of described principal arm or the afterbody of described truss arm.
Pass through technique scheme, because super lifting device provided by the invention is provided with the compensating device that regulates tightness of steel wire rope, therefore can be by regulating the degree of tightness of steel rope, make steel rope all the time in tensioned state, thereby can effectively prevent that steel rope is loose, mixed and disorderly, and for accurately the boom system of control rope capacity, hoisting crane and the lifting performance of raising hoisting crane create conditions.
Other features and advantages of the present invention are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be 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 local structure schematic diagram of a kind of embodiment of hoisting crane provided by the invention; .
Fig. 2 is the local structure schematic diagram of the another kind of embodiment of hoisting crane provided by the invention;
Fig. 3 is the perspective view of super lifting device provided by the invention;
Fig. 4 is the perspective view of a kind of embodiment of the long detecting device of rope provided by the invention;
Fig. 5 is the structure intention of another embodiment of the long detecting device of rope provided by the invention.
Description of reference numerals
1 jib pulley gear 2 steel ropes
3 front tensioner mechanism 4 basic arms
5 turntable 6 amplitude oil cylinder
7 super lifting device 8 truss arms
9 principal arm heads
71 Ya Sheng mechanism 72 conductor rope pulleys
Pulley gear 74 compensating cylinders 73 are surpassed
75 catch gear 76 elevators
The long detecting device of 77 rope 78 has surpassed mast
79 mast base 80 oscillating oil cylinders
761 ratchet 762 winding supports
763 installation shaft
771 detecting devices 772 are identified part
773 bases 774 are identified part
775 rotating shaft 776 Bracket for Inspections
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality hoisting crane normal working as normally provided by the invention in " upper and lower " using is undefined, particularly can be with reference to page as depicted in figs. 1 and 2, in addition, " head " represents the upper end of parts, " afterbody " represents the lower end of parts, it should be noted that, these nouns of locality, only for the present invention is described, are not limited to the present invention.
As shown in Figure 1 to Figure 2, in the preferred embodiment of the present invention, hoisting crane provided by the invention comprises and is arranged on the turntable 5 on chassis (not mark) and is arranged on the boom system on this turntable 5, and this boom system comprises basic arm 4, along the flexible principal arm 9 of basic arm 4 be arranged on the truss arm 8 of these principal arm 9 heads.Wherein, the first end of super lifting device 7 provided by the invention is connected on basic arm 4, tensioner mechanism 3 before the second end connects, and this front tensioner mechanism 3 is connected with the afterbody of basic arm 4.
As shown in Figure 1 to Figure 3, super lifting device 7 provided by the invention comprises having surpassed mast 78 and being arranged on this and has surpassed the elevator 76 on mast 78, on the boom system of hoisting crane, be provided with jib pulley gear 1, the steel rope 2 of drawing from elevator 76 through jib pulley gears 1 and draw back surpass mast 78, so that the load of boom system is acted on basic arm 4 along the axial direction that has surpassed mast 78, and pass through the cooperation with front tensioner mechanism 3, improve the force-bearing situation of crane arm, the lifting performance of lift crane.Realize the function of the front tensioner mechanism of super lifting device 7.In a kind of embodiment shown in Fig. 1, jib pulley gear 1 is arranged on the afterbody of truss arm 8, to strain boom system by steel rope 2, and in another embodiment shown in Fig. 2, jib pulley gear is arranged on the head of principal arm, can strain boom system equally like this, realize the object of super lifting device.
In order to realize object of the present invention, on super lifting device 7 provided by the invention, also comprise the compensating device that regulates steel rope 2 degrees of tightness, draw back the steel rope that has surpassed mast 78 and be connected with this compensating device.Therefore, can be by regulating the degree of tightness of steel rope, keep elevator row rope rule, tight in elevator withdrawing rope process, make steel rope all the time in suitable tensioned state, thereby can effectively prevent that steel rope is loose, mixed and disorderly, and for accurately the boom system of control rope capacity, hoisting crane and the lifting performance of raising hoisting crane create conditions.
It should be noted that; the embodiment that can realize above-mentioned purpose has multiple; the kind of for example compensating device, arrangement etc.; as long as under design of the present invention; various compensating devices, arrangement etc. all drop in protection scope of the present invention, and the present invention for convenience of description, in this introduction preferred implementation wherein; this preferred implementation, only for the present invention is described, is not limited to the present invention.
In the preferred embodiment of the present invention, as shown in Figure 1 to Figure 3, because the steel rope of super lifting device is stressed conventionally larger, preferably, compensating device provided by the invention comprises compensating cylinder 74, and the first end of this compensating cylinder 74 is connected to and has surpassed on mast 78, and the second end is connected with steel rope.Therefore, the degree of tightness that realizes steel rope by the expansion performance of hydraulic ram regulates, and convenient control, and reliability is high.If for example need to further tighten steel rope, compensate the retraction operation of oil cylinder, otherwise compensate the operation of stretching out of oil cylinder, there is not loose phenomenon with the steel rope that effectively ensures on elevator to be wound around.Except compensating cylinder 74 installs by way of compensation, those skilled in the art can also arrange the device of other adjustable steel wire rope degrees of tightness it is replaced, as long as can realize object of the present invention, the present invention does not limit.
In order to ensure the stable operation of compensating cylinder, preferably, the first end of compensating cylinder 74 is fixed on the first end that has surpassed mast 78, be provided with and surpassed pulley gear 73 and surpassed on the second end of mast 78, the steel rope 2 of drawing from jib pulley gear 1 is connected with the second end of compensating cylinder 74 after pulley gear 73 through this is super.The steel rope of drawing from jib pulley gear 1 further can be turned to by having surpassed pulley gear, being fixed on of making that compensating cylinder 74 can be stable surpassed on mast 78, rationally distributed.
What is more important, has surpassed pulley gear 73 and can coordinate with the jib pulley gear 1 being arranged on boom system by arranging, and realizes many multiplying powers and promote the tension ability of the front tensioner mechanism of super lifting device 7.Particularly, surpassed pulley gear 73 and comprised the multiple pulleys that surpassed that are arranged side by side, jib pulley gear 1 comprises the multiple jib pulleys that are arranged side by side accordingly, and steel rope is successively through multiple jib pulleys and multiple pulley that surpassed.Be that steel rope can surpass round winding repeatedly between pulley gear 73 and jib pulley gear 1, many multiplying powers liftings of tensioner mechanism tension ability before realizing.As shown in Figures 2 and 3, surpass pulley gear 73 (Fig. 3 is visible) and jib pulley gear 1 and be all arranged side by side accordingly two pulley parts, referring to the trend of arrow, be wound around different (surpassed pulley gear 73 and jib pulley gear 1 and be all only provided with a pulley part) from single in Fig. 1, in Fig. 2, steel rope 2 is surpassing round winding twice between pulley gear 73 and jib pulley gear 1, therefore compare the mode that the single in Fig. 1 is wound around, can be by one times of the tension capability improving of front tensioner mechanism.In addition, under same load-up condition, adopt the mode of above-mentioned many pulleys also can reduce the specification of front tensioner mechanism, the thickness of such as steel rope etc., realize the loss of weight texts of super lifting device.
It should be noted that, Fig. 2 is a kind of embodiment of the set-up mode for pulley is described, in other NM embodiments, can also the more pulleys that arrange of pulley gear 73 and jib pulley gear 1 correspondence will be surpassed, with the tension ability of the lifting super lifting device 7 of many multiplying powers.The set-up mode of wirerope-winding assembly pulley is herein conventionally known to one of skill in the art, and those skilled in the art can carry out various changes or replacement to this setup, as long as meet object of the present invention, the present invention does not limit this.
In order to make the rationally distributed of super lifting device 7, preferably, elevator 76 is arranged on the first end that has surpassed mast 78, and this second end that has surpassed mast 78 is provided with conductor rope pulley 72, and the steel rope of drawing from elevator 76 is guided jib pulley gear 1 into through this conductor rope pulley 72.By conductor rope pulley 72, the steel rope of drawing from elevator 76 2 is turned to for the first time, and guide jib pulley gear 1 into.And for the steel rope 2 that is drawn out to conductor rope pulley 72 from elevator 76 is tightened all the time and can not be got loose, preferably, super lifting device 7 also comprises Ya Sheng mechanism 71, Gai Yasheng mechanism 71 can be pressed on steel rope on conductor rope pulley 72.In addition, in order to promote the reliability of elevator 76, preferably, super lifting device 7 is also provided with catch gear 75, and this catch gear 75 can release ground locking elevator 76.Ya Sheng mechanism herein and catch gear can by this area exist or the thinkable any rope press device of those skilled in the art and catch gear, its principle, structure etc. have various ways, do not do too much and repeat at this.For example, Ya Sheng mechanism can be realized the compression of steel rope and be unclamped by the reciprocating compressing member of hydraulic oil cylinder driving, and wherein steel rope 2 passes between compressing member and conductor rope pulley 72; Catch gear can be ratchet-type catch gear common in this area, be set to multiple ratchets 761 of uniformly-spaced arranging by the periphery of elevator, and catch gear is under locking state time, its locking piece can act on the ratchet 761 of rope outlet direction, can only single direction rotation to realize elevator by this locking piece, reduce the stressed of elevator bearing, and then improve the reliability of elevator.
To sum up, in the super lifting device providing in the preferred embodiment of the present invention, elevator 76, conductor rope pulley 72, jib pulley gear 1, pulley gear 73 and compensating cylinder 74 etc. are surpassed and have formed the above-mentioned front tensioner mechanism of super lifting device 7, and the row of this front tensioner mechanism restricts in order, closely, can create condition for the boom system of accurately controlling hoisting crane.
In addition, in the preferred embodiment of the present invention, as shown in Figure 3, surpass mast 78 for symmetrically arranged two, these two have surpassed mast 78 and have been pivotably mounted on mast support 79, each surpassed to be provided with on mast 78 make two to surpass that mast 78 approaches or the rotation oil cylinder 80 of pivotable remotely, the first end of this rotation oil cylinder 80 is hinged on and has surpassed on mast 78, the other end is hinged on mast support 79.Therefore can realize two relative rotations that surpassed mast 78 by rotation oil cylinder 80, to adapt to different working condition requirements.In addition, as shown in Figure 1 to Figure 3, preferably, mast support 79 is hinged on the basic arm 4 of hoisting crane, and super lifting device 7 comprises amplitude oil cylinder 6, and one end of this amplitude oil cylinder 6 is hinged on basic arm 4, and the other end is hinged on mast support 79.To realize the luffing operation of above-below direction of super lifting device 7 by amplitude oil cylinder 6, further to promote the practicality of super lifting device 7 provided by the invention.
In addition, in order to keep balance, super lifting device arranges the front tensioner mechanism of two covers conventionally symmetrically, particularly, super lifting device conventionally arranges symmetrically two and has surpassed mast, the every front tensioner mechanism having surpassed on mast is all strained by steel rope with boom system, and therefore, the rope capacity that how to ensure two front tensioners mechanism is also unanimously crucial.Because, if the rope capacity of two systems is inconsistent, will cause the boom system both sides unbalance stress of hoisting crane, thereby there is the phenomenon of jib side sway, and then the grave accident such as cause that jib fractures, therefore, super lifting device provided by the invention is also provided with the long detecting device of rope for steel rope 2.Introduce in detail the long detecting device of rope provided by the invention below in conjunction with Fig. 4 and Fig. 5.
Also exist in the prior art some to detect the long device of rope, but conventionally stressed as detected object taking steel rope of these devices, can not ensure the length of the steel rope that elevator discharges, and cannot avoid, more can not regulate the boom system of hoisting crane to occur side sway phenomenon, for safety in production hides some dangers for.For this problem, the invention provides the long detecting device of rope that a kind of reliability is high.The long detecting device 77 of this rope comprises the detecting device 771 of the angle turning over for detection of elevator 76, and for identifying the means of identification 772,774 of elevator 76 current turned positions.
In technique scheme, because the long detecting device of rope provided by the invention has detecting device and means of identification simultaneously, whether in the angle turning at detection elevator, can also identify the current turned position of elevator is to need satisfactory turned position, thereby the rope capacity of two front tensioners mechanism that has ensured the super lifting device that uses the long detecting device of this rope is consistent, thereby both safety performances of lift crane, have improved again the lifting performance of hoisting crane.
It should be noted that, the current turned position of the elevator of mentioning in the present invention refers to the current circumferential position that the installation shaft around elevator of elevator periphery is rotated.In addition, the long detecting device of the rope of elevator provided by the invention except with for super lifting device, use the place of elevators at other, applicable equally.In addition, the embodiment that can realize technique scheme also has multiple, kind and the arrangement etc. of such as detecting device and means of identification, as long as can meet object of the present invention, the present invention is to this type of change or replace and all do not limit.
In the preferred embodiment of the present invention, for the long detecting device of rope is conveniently set, as shown in Figure 4 and Figure 5, elevator 76 can be rotatably installed on winding support 762 by installation shaft 763.And winding support 762 is being arranged on to corresponding use occasion.For example, in super lifting device provided by the invention, as shown in Figure 3, winding support 762 is arranged on the first end that has surpassed mast 78.
Wherein, preferably, detecting device 771 related in the present invention is coder, and this coder one end is arranged on elevator 76, and the other end is arranged in installation shaft 763.Therefore, it is static that coder is arranged on one end in installation shaft 763, and the other end being arranged on elevator 76 can synchronously rotate with elevator 76, thus the angle that direct-detection elevator 76 turns over.Coder used herein can adopt the RM9000 coder that for example Yi Fumen electronics Shanghai Co., Ltd sells, except coder, can also adopt the detecting device of other kinds in this area to detect the angle that elevator 76 turns over, such as various angular transducers etc.
And means of identification involved in the present invention comprises and is identified part 774 and can identifies this identification part 772 that is identified part 774, identification part 772 is arranged on winding support 762, be identified part 774 for multiple, the plurality of being identified in the circumferential outer edge that part 774 is equally spaced arranged on elevator 76, preferably be arranged on the ratchet 761 of formation and elevator 76 peripheries, identifying part 772 is fixedly installed, and be identified part 774 movable (also can optionally be set to be identified part 774 is fixedly installed, and identification part 77 movable).Wherein, being identified part 774 has and can be identified unique encoded radio that part 772 reads, this unique encoded radio is corresponding with a current turned position of elevator, before deserving, the accuracy of identification of turned position depends on the number that is identified part 774 that elevator periphery equally spaced arranges, being identified part 774, that number is set is more, and the accuracy of identification of current turned position is higher.
Thereby, along with the rotation of elevator 76, enter after the identified region of identification part 772 when being identified part 774, read and be identified unique encoded radio that part 774 has by identification part 772, whether consistent with corresponding expected value by comparing this encoded radio, to determine that whether the current turned position of elevator 76 is as satisfactory turned position.Therefore, can judge whether elevator has carried out satisfactory rotation, and whether the length of the steel rope that further definite elevator discharges meets the requirements.In addition, means of identification involved in the present invention, can select any code recognition system common in this area, RFID (RF identification) code recognition system that for example can select Yi Fumen electronics Shanghai Co., Ltd to sell, the present invention does not limit this.It should be noted that Fig. 4 and Fig. 5 are only structure and the mounting meanss that schematically shows the long detecting device of rope provided by the invention, only for the present invention is described, be not limited to the present invention.
In actual use, for example, on the super lifting device that long rope provided by the invention detecting device is applied to hoisting crane provided by the invention time, in the control system of super lifting device, be provided with first object value and the second expected value, wherein, the angle value that first object value turns over for the elevator detecting with detecting device 771 compares, and the second expected value compares for the encoded radio of the current turned position of representative elevator identified with means of identification.Before hoisting crane starts hoisting operation, elevator 76 is put after rope operation, first whether unanimously with the second expected value identify two current turned positions that surpassed the elevator 76 on mast 78 by means of identification, when one of them or all occur when inconsistent, steel rope 2 length that two front tensioners mechanism are described are not identical, need to regulate the length of steel rope 2.Now, the control system of super lifting device can read the current reading value (being the angle that elevator turns over) of detecting device 771 (coder), and converts with first object value, then controls super lift winch 76 and does corresponding rotation.For example, when the current reading value of coder is greater than first object value, corresponding steel rope 2 length are long, need elevator 76 to carry out the rotation operation of rope closing direction, otherwise need elevator 76 to put the rotation of rope direction.And in the time that super lift winch 61 rotates, detecting device 771 (coder) can accurately detect the angle that elevator 76 rotates, in the time that the current reading value of detecting device 771 (coder) is consistent with first object value, control system is controlled elevator 76 and is stopped operating.Now, in order to ensure the particularity of rope capacity, identification part 772 in means of identification will read the encoded radio that is identified part 774, and this encoded radio and the second expected value are compared, if consistent, the current turned position of elevator meets the requirements, and then the current length of definite steel rope meets the requirements; If there is deviation, in the front tensioner mechanism of super lifting device, may break down, need carry out malfunction elimination trouble-shooting.Until after two systems all detect by detecting device and means of identification, hoisting crane could operation.
Therefore, by the double check of detecting device and means of identification, two length that surpassed the corresponding steel rope 2 of mast that can ensure super lifting device are consistent, and effectively avoid occurring the problem of deviation, thereby prevent the jib both sides discontinuity of the hoisting crane inconsistent caused due to steel rope 2 length, and then avoid occurring the accident that jib side sway even fractures.In addition, by the length of accurate control steel rope 2, super lifting device is mated more excellent with boom system force-bearing situation, to bring into play the potential that hoists of super lifting device and boom system, the further lifting performance of lift crane.
In the present invention, the mounting means of all parts have many in distortion, the mounting means of for example identifying part 772 just has multiple, wherein as shown in Figure 4, identification part 772 is fixed on winding support 762 by base 773.And in Fig. 5, on winding support 776, be rotatably provided with Bracket for Inspection 776, and the first end of this Bracket for Inspection 776 is hinged on winding support 776 by rotating shaft 775, and identification part 772 is arranged on the second end of Bracket for Inspection 776.The position of identifying part 772 can mobilizablely arrange.Those skilled in the art can also carry out the various changes that can expect and realize to above-mentioned mounting structure, as long as meet object of the present invention, the present invention does not limit.
To sum up, the long detecting device of rope provided by the invention, super lifting device and hoisting crane are practical, and reliability is high, can accurately control crane jib frame system, thereby the performance of lift crane and safety have higher promotional value.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; 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 concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various 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. the long control method of the rope of the super lifting device of a hoisting crane, described hoisting crane comprises two super lifting devices (7), each described super lifting device (7) comprises and has surpassed mast (78) and be arranged on the described elevator (76) having surpassed on mast (78), on the boom system of described hoisting crane, be provided with jib pulley gear (1), the steel rope (2) of drawing from described elevator (76) is through described jib pulley gear (1) and draw back mast (78) described surpassing, on described super lifting device (7), also comprise the compensating device that regulates described steel rope (2) degree of tightness, drawing back the described described steel rope that has surpassed mast (78) is connected with this compensating device, described method comprises:
S1, use detecting device (771) detect the angle that described elevator (76) turns over and use means of identification to detect the encoded radio of the current turned position of described elevator (76);
S2, first judge whether to regulate the rope of described steel rope (2) long by contrasting the encoded radio of the current turned position of elevator (76) described in the representative that the second expected value and each described means of identification identify, the action of the described elevator of the corresponding adjusting of comparing result (76) of the angle value then turning over according to the described elevator (76) of first object value and each described detecting device (771) detection, to regulate the rope of described steel rope (2) long;
Wherein, the angle value that described first object value turns over for predefined described elevator (76), described the second expected value is the encoded radio of the turned position of predefined described elevator (76).
2. method according to claim 1, wherein, in step S2, first contrast the encoded radio that the second expected value and each described means of identification are identified, the encoded radio of identifying when means of identification described in any one and described the second expected value are when inconsistent, judge that the comparing result of the angle value that needs to regulate the length of corresponding described steel rope (2) and detect with corresponding described detecting device (771) according to first object value regulates the action of corresponding elevator (76), until first object value is consistent with the angle value that described detecting device (771) detects.
3. the long control method of the rope of the super lifting device of hoisting crane according to claim 1, it is characterized in that, described compensating device comprises compensating cylinder (74), the first end of this compensating cylinder (74) is connected to described having surpassed on mast (78), and the second end is connected with described steel rope.
4. the long control method of the rope of the super lifting device of hoisting crane according to claim 3, it is characterized in that, the first end of described compensating cylinder (74) is fixed on the described first end that has surpassed mast (78), this has surpassed on the second end of mast (78) and is provided with and has surpassed pulley gear (73), and the described steel rope (2) of drawing from described jib pulley gear (1) is connected with the second end of described compensating cylinder (74) after pulley gear (73) through this is super.
5. the long control method of the rope of the super lifting device of hoisting crane according to claim 4, it is characterized in that, the described pulley gear (73) that surpassed comprises the multiple pulleys that surpassed that are arranged side by side, described jib pulley gear (1) comprises the multiple jib pulleys that are arranged side by side accordingly, and described steel rope is successively through multiple jib pulleys and multiple pulley that surpassed.
6. according to the long control method of rope of the super lifting device of the hoisting crane described in any one in claim 1-5, it is characterized in that, described elevator (76) is arranged on the described first end that has surpassed mast (78), this second end that has surpassed mast (78) is provided with conductor rope pulley (72), and the steel rope of drawing from described elevator (76) is guided described jib pulley gear (1) into through this conductor rope pulley (72).
7. the long control method of the rope of the super lifting device of hoisting crane according to claim 6, it is characterized in that, described super lifting device (7) comprises Ya Sheng mechanism (71), and Gai Yasheng mechanism (71) can be pressed on described steel rope on described conductor rope pulley (72).
8. according to the long control method of rope of the super lifting device of the hoisting crane described in any one in claim 1-5, it is characterized in that, described super lifting device (7) is provided with catch gear (75), and this catch gear (75) can the release ground described elevator of locking (76).
9. according to the long control method of rope of the super lifting device of the hoisting crane described in any one in claim 1-5, it is characterized in that, the described mast (78) that surpassed is symmetrically arranged two, these two have surpassed mast (78) and have been pivotally mounted on mast support (79), each described surpassed to be provided with on mast (78) make described two to surpass that mast (78) approaches or the rotation oil cylinder (80) of pivotable remotely, the first end of this rotation oil cylinder (80) is hinged on described having surpassed on mast (78), the other end is hinged on described mast support (79).
10. the long control method of the rope of the super lifting device of hoisting crane according to claim 9, it is characterized in that, described mast support (79) is hinged on the basic arm (4) of described hoisting crane, described super lifting device (7) comprises amplitude oil cylinder (6), it is upper that one end of this amplitude oil cylinder (6) is hinged on described basic arm (4), and the other end is hinged on described mast support (79).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066344.3A CN102602827B (en) | 2012-03-14 | 2012-03-14 | Rope length adjusting method of super-lifting device of crane |
| PCT/CN2012/082166 WO2013135041A1 (en) | 2012-03-14 | 2012-09-27 | Super-lift device of crane and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066344.3A CN102602827B (en) | 2012-03-14 | 2012-03-14 | Rope length adjusting method of super-lifting device of crane |
Publications (2)
| Publication Number | Publication Date |
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| CN102602827A CN102602827A (en) | 2012-07-25 |
| CN102602827B true CN102602827B (en) | 2014-10-01 |
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| CN201210066344.3A Active CN102602827B (en) | 2012-03-14 | 2012-03-14 | Rope length adjusting method of super-lifting device of crane |
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| Country | Link |
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| CN (1) | CN102602827B (en) |
| WO (1) | WO2013135041A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602827B (en) * | 2012-03-14 | 2014-10-01 | 中联重科股份有限公司 | Rope length adjusting method of super-lifting device of crane |
| CN102795560B (en) * | 2012-08-24 | 2014-09-17 | 中联重科股份有限公司 | Engineering machine and main arm thereof, and method for detecting and correcting lateral curvature of main arm of engineering machine |
| CN102887455B (en) * | 2012-09-26 | 2014-12-10 | 三一重工股份有限公司 | Method, device and system for controlling pre-tightening force of super lift device |
| CN102849630B (en) * | 2012-09-27 | 2015-03-18 | 中联重科股份有限公司 | Equal length keeping method for rear tensioning device and crane |
| CN103010969B (en) * | 2012-12-07 | 2015-04-01 | 中联重科股份有限公司 | Crane, super-lifting mast and forward-pulling pre-tightening device thereof |
| CN103466468A (en) * | 2013-08-29 | 2013-12-25 | 三一汽车起重机械有限公司 | Superlift device, engineering machine and front tension device of superlift device |
| CN103420296B (en) * | 2013-08-29 | 2016-04-27 | 徐州重型机械有限公司 | A kind of super lifting device, front pretension rope capacity control system and hoisting crane |
| DE102015000473B4 (en) * | 2015-01-14 | 2024-02-22 | Liebherr-Werk Ehingen Gmbh | Crane with bracing |
| CN105293318B (en) * | 2015-11-18 | 2017-09-29 | 德马科起重机械有限公司 | A kind of crane super lifting device and application method |
| CN105439007A (en) * | 2015-12-28 | 2016-03-30 | 中联重科股份有限公司 | Super-lifting device of crane, adjusting method of super-lifting device and crane |
| CN106516993A (en) * | 2016-12-20 | 2017-03-22 | 徐州重型机械有限公司 | Multi-fulcrum hooking superlift device and crane |
| DE102017000009A1 (en) * | 2017-01-02 | 2018-07-05 | Liebherr-Werk Ehingen Gmbh | Jig for a jib of a crane |
| DE102019122071B3 (en) * | 2019-08-16 | 2020-09-17 | Tadano Demag Gmbh | Telescopic boom with fold-out mast |
| CN113247800A (en) * | 2021-05-31 | 2021-08-13 | 徐州重型机械有限公司 | Crane with a movable crane |
| CN115744683A (en) * | 2022-11-30 | 2023-03-07 | 菲尔森智能装备(江苏)有限公司 | Reinforced suspension arm of crane |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013135041A1 (en) | 2013-09-19 |
| CN102602827A (en) | 2012-07-25 |
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