CN102963825A - Crane and balancing weight hooking device thereof - Google Patents
Crane and balancing weight hooking device thereof Download PDFInfo
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- CN102963825A CN102963825A CN2012104911565A CN201210491156A CN102963825A CN 102963825 A CN102963825 A CN 102963825A CN 2012104911565 A CN2012104911565 A CN 2012104911565A CN 201210491156 A CN201210491156 A CN 201210491156A CN 102963825 A CN102963825 A CN 102963825A
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Abstract
The invention discloses a balancing weight hooking device of a crane. The balancing weight hooking device comprises a balancing weight oil cylinder and a balancing weight bracket, wherein the balancing weight bracket can be hooked to a crane rotary table, and the balancing weight bracket is used for placing a balancing weight; and one end of the balancing weight oil cylinder is connected with the balancing weight bracket, and the other end of the balancing weight oil cylinder is supported on a crane chassis to lifting the balancing weight bracket. According to the balancing weight hooking device, the hooking is realized by lifting of the balancing weight oil cylinder, compared with an oil cylinder hoisting scheme in the background art, apparently, according to the scheme, the height (the weight of the balancing weight is determined) of the balancing weight is not limited by a distance between the tail of the rotary table and the chassis, the flexibility of the height adjustment of the balancing weight is high, and balancing requirements of large-tonnage cranes can be met. Besides, the balancing weight oil cylinder only plays the lifting role in the hooking process and is out of circulation with hooking in the hoisting process, and the balancing weight is hooked onto the rotary table mainly through the balancing weight bracket, so that the reliability is high. The invention further discloses the crane.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of hoisting crane and counterbalanced weight hanging device thereof.
Background technology
Counterbalanced weight is one of important component part of hoisting crane, the counterweight in the time of can be as crane hanging component, and therefore, counterbalanced weight plays conclusive effect to the lifting performance of hoisting crane.Counterbalanced weight generally comprises some counterweight blocks, can reach the purpose of adjusting counterbalanced weight weight by the number of adjusting counterweight block.
Because the complete machine weight of hoister in large tonnage is large, articulating under the operating mode of counterbalanced weight, can't transport and cut to, so transportation and transition the time need to be dismantled counterbalanced weight, generally only in the crane hanging component process, hoisting crane is carried out the interim assembling of counterbalanced weight by the counterbalanced weight hanging device.As seen, the counterbalanced weight hanging device need to guarantee the reliability that articulates of counterbalanced weight in hoisting process, on the other hand, in transportation and transition, or when being about to lift, needs to guarantee the efficient that articulates and dismantle, to guarantee job schedule.
At present, mainly articulate counterbalanced weight by the counterbalanced weight oil cylinder, the cylinder barrel of counterbalanced weight oil cylinder is fixed in the afterbody of rotating platform of crane, and counterbalanced weight has column, and the piston rod of counterbalanced weight oil cylinder can be fixed with column.It is as follows specifically to articulate process: the piston rod of counterbalanced weight oil cylinder stretches out, and fixes with the counterbalanced weight column, and piston rod is retracted and drawn high counterbalanced weight, articulates complete.
There is following technical matters in this technology:
The first, the height-limited distance between turntable afterbody and chassis of counterbalanced weight, for hoister in large tonnage, height-limited counterbalanced weight is difficult to satisfy the larger requirement of balance of weight;
The second, in hoisting process, rely on all the time the counterbalanced weight oil cylinder to hang and connect counterbalanced weight, the counterbalanced weight oil cylinder often needs flexible, intensity is affected easily, and flexible may be malfunctioning, what cause counterbalanced weight articulates the reliability deficiency.
In view of this, how providing a kind of counterbalanced weight height unrestricted counterbalanced weight hanging device, is the technical matters that those skilled in the art need to be resolved hurrily.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of counterbalanced weight hanging device, when this device articulates counterbalanced weight, so that the counterbalanced weight height is unrestricted.
Counterbalanced weight hanging device for hoisting crane provided by the invention comprises the counterbalanced weight oil cylinder, also comprises the counterbalanced weight support that can be mounted on rotating platform of crane, and described counterbalanced weight support is used for putting counterbalanced weight; One end of described counterbalanced weight oil cylinder connects described counterbalanced weight support, and the other end is supported in crane chassis, with the described counterbalanced weight support of jacking.
This counterbalanced weight hanging device is realized articulating by the counterbalanced weight cylinder jacking, oil cylinder in background technology articulates scheme, obviously, this kind scheme is not so that the height of counterbalanced weight (having determined the weight of counterbalanced weight) is subjected to the distance limit between turntable afterbody and the chassis, counterbalanced weight height flexible adjustment is higher, can satisfy the requirement of balance of hoister in large tonnage.In addition, the counterbalanced weight oil cylinder just plays the effect of jacking in articulating process, in the hoisting process, do not participate in articulating, and counterbalanced weight mainly is mounted on the turntable by the counterbalanced weight support, and reliability is high.And the stroke of counterbalanced weight oil cylinder is little, and the jacking distance of counterbalanced weight is little, articulates the high demand of efficient thereby satisfy hoister in large tonnage hoisting process counterbalanced weight.
Preferably, the cylinder barrel of described counterbalanced weight oil cylinder connects described counterbalanced weight support, and the piston rod of described counterbalanced weight oil cylinder is supported in crane chassis; Described counterbalanced weight support is provided with mounting hole, and the cylinder barrel of described counterbalanced weight oil cylinder runs through described mounting hole, and described cylinder barrel connects described counterbalanced weight support near the end of crane chassis.
Preferably, described mounting hole is stepped hole, and described cylinder barrel has radially terminal pad near the end of crane chassis, and the diameter of described radially terminal pad is greater than the diameter holes diameter of described stepped hole, and described cylinder barrel diameter is equal to or less than described diameter holes diameter; The hole, large footpath of described stepped hole is towards crane chassis.
Preferably, the radially terminal pad of described cylinder barrel and described counterbalanced weight support are bolted.
Preferably, described counterbalanced weight support comprises the carrier be used to the hitching frame that articulates rotating platform of crane and the described counterbalanced weight of storing; Described counterbalanced weight oil cylinder connects described carrier.
Preferably, described hitching frame is arranged at the middle part of described carrier, and the relatively described hitching frame of described carrier part that is positioned at described hitching frame both sides is symmetrical arranged; The counterbalanced weight hanging device comprises two described counterbalanced weight oil cylinders, connects respectively the described carrier part of described hitching frame both sides.
Preferably, described carrier has location shrinkage pool or positioning boss, to match with positioning boss or the location shrinkage pool of counterbalanced weight bottom.
Preferably, the end of the piston rod of described counterbalanced weight oil cylinder is provided with flange; The counterbalanced weight hanging device also comprises the base plate that can be fixed in crane chassis, and described flange is fixed in crane chassis by described base plate; Described base plate has stepped hole, and the diameter of described flange is greater than the diameter holes diameter of described stepped hole, and described diameter of piston rod is equal to or less than described diameter holes diameter; Described diameter holes is towards described counterbalanced weight support.
Preferably, described base plate has location shrinkage pool or positioning boss, in order to cooperate with positioning boss or the location shrinkage pool of described crane chassis.
Preferably, described flange is fixed by bolt and described base plate.
The present invention also provides a kind of hoisting crane, and comprise the chassis, be arranged at the turntable on the described chassis, and the counterbalanced weight hanging device that counterbalanced weight can be mounted on described turntable, described counterbalanced weight hanging device is above-mentioned each described counterbalanced weight hanging device.Because above-mentioned counterbalanced weight hanging device has above-mentioned technique effect, the hoisting crane with this counterbalanced weight hanging device also has identical technique effect, no longer repeats to discuss herein.
Preferably, described counterbalanced weight support is provided with for the first otic placode that articulates with rotating platform of crane, and described the first otic placode is provided with the first mount hole; The afterbody of described turntable is provided with the second otic placode, and described the second otic placode is provided with the second mount hole; Comprise that also hydraulic pressure wears shaft device, described hydraulic pressure is worn shaft device and is had hydraulic actuating cylinder, fixed support and bearing pin, drives described bearing pin during described hydraulic cylinder extension and inserts or break away from described the first mount hole and described the second mount hole.
Preferably, described counterbalanced weight support is provided with spacing hole, and described turntable is provided with the limited post that can insert in this spacing hole.
Preferably, described counterbalanced weight comprises the chain latching device; The side of each counterweight block of described counterbalanced weight is provided with shrinkage pool and is located at the boss of described shrinkage pool bottom, and the chain of described chain latching device is positioned at described shrinkage pool and locks the described boss of each described counterweight block.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of counterbalanced weight hanging device provided by the present invention;
Fig. 2 is the process scheme drawing that the counterbalanced weight hanging device articulates among Fig. 1;
Fig. 3 is the structural representation after counterbalanced weight support and turntable articulate among Fig. 1;
Fig. 4 is that the counterbalanced weight support carries the structural representation that articulates with turntable behind the counterbalanced weight among Fig. 3;
Fig. 5 is the structural representation of base plate among Fig. 1.
Among Fig. 1-5:
1 turntable, 11 second otic placodes, 12 second mount holes, 13 limited posts, 14 plugging pin oil cylinder, 15 hydraulic pressure are worn shaft device, 2 counterbalanced weight hanging devices, 21 counterbalanced weight supports, 211 hitching frames, 211a the first otic placode, 211b the first mount hole, 212 carriers, the 212a positioning boss, 22 counterbalanced weight oil cylinders, 221 piston rods, the 221a flange, 222 cylinder barrels, 222a is terminal pad radially, 223 first bolts, 224 second bolts, 23 base plates, 231 location shrinkage pools, 21a spacing hole, 3 counterbalanceds weight, 31 boss, 32 chains, 4 chassis
The specific embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1-4, Fig. 1 is the structural representation of a kind of specific embodiment of counterbalanced weight hanging device provided by the present invention; Fig. 2 is the process scheme drawing that the counterbalanced weight hanging device articulates among Fig. 1; Fig. 3 is the structural representation after counterbalanced weight support and turntable articulate among Fig. 1; Fig. 4 is that the counterbalanced weight support carries the structural representation that articulates with turntable behind the counterbalanced weight among Fig. 3.
This counterbalanced weight hanging device 2 is used for hoisting crane, mainly is that counterbalanced weight 3 is articulated on the turntable 1 of hoisting crane, generally is the afterbody that is articulated in turntable 1.This counterbalanced weight hanging device 2 comprises counterbalanced weight oil cylinder 22, also comprise the counterbalanced weight support 21 that can be mounted on rotating platform of crane 1, counterbalanced weight 3 places on the counterbalanced weight support 21, and then counterbalanced weight support 21 articulates to turntable 1, and the counterbalanced weight 3 on it namely is hung on the turntable 1.
Articulating by counterbalanced weight oil cylinder 22 of counterbalanced weight support 21 realizes.One end of counterbalanced weight oil cylinder 22 connects counterbalanced weight support 21, and the other end is supported on the crane chassis 4, as shown in Figure 2.When articulating, counterbalanced weight support 21 is positioned on the chassis 4, counterbalanced weight oil cylinder 22 is between counterbalanced weight support 21 and crane chassis 4, when then the piston rod 221 of counterbalanced weight oil cylinder 22 stretches out, counterbalanced weight oil cylinder 22 can the heavy support 21 of jacking balance, with 21 jackings of counterbalanced weight support when articulating position corresponding to position with turntable 1, counterbalanced weight oil cylinder 22 can stop to stretch out, then counterbalanced weight support 21 can be realized being connected with turntable 1, then, take counterbalanced weight oil cylinder 22 and crane chassis 4 apart (as shown in Figure 2) or take apart with counterbalanced weight support 21, then counterbalanced weight support 21 relative chassis 4 separation, and be mounted on the turntable 1.Be appreciated that counterbalanced weight 3 is placed on the counterbalanced weight support 21 before articulating, realize articulating with companion counterbalanced weight support 21.
Counterbalanced weight hanging device 2 among this embodiment is realized articulating by 22 jackings of counterbalanced weight oil cylinder, oil cylinder Hoisting Program in the background technology, obviously, this kind scheme is not so that the height of counterbalanced weight 3 (having determined the weight of counterbalanced weight 3) is subjected to the distance limit between turntable 1 afterbody and the chassis 4, counterbalanced weight 3 height flexible adjustments are higher, can satisfy the requirement of balance of hoister in large tonnage.In addition, counterbalanced weight oil cylinder 22 just plays the effect of jacking in articulating process, in the hoisting process, do not participate in articulating, and counterbalanced weight 3 mainly is mounted on the turntable 1 by counterbalanced weight support 21, and reliability is high.Simultaneously, counterbalanced weight oil cylinder 22 strokes are short, and counterbalanced weight cylinder barrel 222 just takes the elongation action directly to articulate counterbalanced weight support 21 in the process that articulates, and does not need to take contractive action, hookup time is short, articulates the high demand of efficient thereby satisfy hoister in large tonnage hoisting process counterbalanced weight.
When articulating, turntable 1 generally needs revolution to align, can aim at all the time in order to guarantee turntable 1 and counterbalanced weight support 21, precisely articulate realizing, can plugging pin oil cylinder 14 be set at turntable 1, as shown in Figure 4, on the chassis 4 dowel hole can be set, then plugging pin oil cylinder 14 can with turntable 1 on the fixing locking of dowel hole, prevent that turntable 1 from rotating, so that turntable 1 remains on the position that can articulate with counterbalanced weight support 21.
Particularly, the cylinder barrel 222 of counterbalanced weight oil cylinder 22 can connect counterbalanced weight support 21, and the piston rod 221 of counterbalanced weight oil cylinder 22 is supported on the crane chassis 4.In addition, on the counterbalanced weight support 21 mounting hole can be set, the cylinder barrel 222 of counterbalanced weight oil cylinder 22 can penetrating mounting holes, and cylinder barrel 222 connects counterbalanced weight support 21 near the end of crane chassis 4.As shown in Figure 2, the major part of cylinder barrel 222 is positioned on the mounting hole, and the setting of this kind structure after articulating, can separate piston rod 221 with crane chassis 4.When then piston rod 221 is retracted, piston rod 221 almost can be close to the bottom of counterbalanced weight support 21, before articulating and after articulating, counterbalanced weight oil cylinder 22 can not take the space between counterbalanced weight support 21 and the chassis 4, thereby be convenient to counterbalanced weight support 21 is placed on the chassis 4, in the hoisting process, counterbalanced weight oil cylinder 22 can not interfere with miscellaneous part in following turntable 1 rotation process yet.
Particularly, the mounting hole on the counterbalanced weight support 21 can be stepped hole, and the end of cylinder barrel 222 close crane chassis 4 has radially terminal pad 222a, and namely the lower end of the cylinder barrel shown in Fig. 2 222 has radially terminal pad 222a.Radially the diameter of terminal pad 222a is less than or equal to large footpath bore dia greater than the diameter holes diameter of counterbalanced weight support 21 upper shoulder holes; Cylinder barrel 222 diameters are equal to or less than the diameter holes diameter; And the hole, large footpath of stepped hole is towards crane chassis 4.Among Fig. 2, the diameter holes of counterbalanced weight support 21 upper shoulder holes is positioned at the upper end, and hole, large footpath is positioned at the lower end.So design, when the piston rod 221 of counterbalanced weight oil cylinder 22 stretches out, cylinder barrel 222 upwards jackings, radially the cascaded surface of terminal pad 222a and counterbalanced weight support 21 stepped holes formation is interfered conflict, and then top lift is passed to counterbalanced weight support 21, reach the heavy support 21 of jacking balance to aim at the purpose that articulates with turntable 1.This kind arranges simply and stably realized the transmission of top lift.
Certainly, cylinder barrel 222 and counterbalanced weight support 21 directly are welded and fixed or screw thread is fixing also can realize top lift transmission.Among Fig. 2, the reliability that is connected with counterbalanced weight support 21 in order to ensure cylinder barrel 222, also further fix by the first bolt 223, certainly, when separating counterbalanced weight oil cylinder 22 and crane chassis 4 after articulating, the first bolt 223 has also played the purpose of fixed balance weight oil cylinder 22 and counterbalanced weight support 21.
Hitching frame 211 can be arranged at the middle part of carrier 212, and as shown in Figure 1, the relative hitching frame 211 of carrier 212 parts that is positioned at hitching frame 211 both sides is symmetrical arranged; Correspondingly, counterbalanced weight hanging device 2 can comprise two counterbalanced weight oil cylinders 22, connects respectively carrier 212 parts of hitching frame 211 both sides.So arrange, have good balance and stability performance so that carry the whole counterbalanced weight hanging device 2 of counterbalanced weight 3.In addition, the jacking of two counterbalanced weight oil cylinders 22 is also comparatively stable, has also increased top lift simultaneously, and then raising articulates efficient.
Counterbalanced weight 3 can rotate with turntable 1 in hoisting process, because counterbalanced weight 3 weight are larger, breaks away from counterbalanced weight support 21 for avoiding counterbalanced weight 3 to shake based on inertia, and counterbalanced weight support 21 and counterbalanced weight 3 specifically can be realized the location in the following manner:
Counterbalanced weight 3 general stacked the forming of counterweight block (being generally iron block) by uniform specification, when positioning boss 212a is located at counterweight block, another counterweight block of counterweight block below need to set out corresponding with it slotted eye, therefore, positioning boss 212a is arranged on the carrier 212, and the location shrinkage pool is located at counterbalanced weight 3 bottoms and is comparatively preferred scheme.
In above-described embodiment, the mode that an end of counterbalanced weight 22 oil cylinders is supported in chassis 4 has multiple, specifically can be referring to following structure:
The end of the piston rod 221 of counterbalanced weight oil cylinder 22 can arrange flange 221a; Counterbalanced weight hanging device 2 also comprises the base plate 23 that can be fixed in crane chassis 4, and shown in Fig. 1,2,5, Fig. 5 is the structural representation of base plate among Fig. 1.Location shrinkage pool 231 can be set on the base plate 23, and can arrange positioning boss on the chassis 4 this moment, and location shrinkage pool 231 can insert for positioning boss, and then base plate 23 can place on the crane chassis 4 by location shrinkage pool and positioning boss Combined with Radiotherapy; Certainly, the location shrinkage pool is arranged on the chassis 4, and positioning boss is arranged on the base plate 23 and also is fine.Or by other removably mode base plate 23 is positioned on the chassis 4.After counterbalanced weight support 21 and turntable 1 articulated, piston rod 221 can drive base plate 23 and break away from chassis 4 when retracting.This kind mode on base plate 23 and chassis 4 articulates the efficient requirement so that counterbalanced weight hanging device 2 is very easy with separating of chassis 4 to satisfy.
This kind fixed form has realized the fixing of flange 221a and chassis 4 simply.Certainly, counterbalanced weight oil cylinder 22 can also be supported on the chassis 4 by other means.Such as, piston rod 221 ends arrange flange 221a, and flange 221 also cooperates the location according to boss, shrinkage pool mode with chassis 4, also is fine.Just directly be supported on chassis 4 compared to flange 221a, base plate 23 is set in above-described embodiment, so that the stressed base plate 23 that mainly is transmitted to of flange 221a, and base plate 23 areas are larger, can reduce the damage of flange 221a, and flange 221a is not easy to deflection when discontinuity equalization, thereby avoids counterbalanced weight oil cylinder 22 deflections, improves the safety that articulates.Especially chassis 4 is generally supporting structure, and when flange 221a directly was supported in chassis 4 support, area of contact was very little, and stability is not enough, and the advantage that base plate 23 is set is then more obvious.When counterbalanced weight hanging device 2 breaks away from chassis 4 articulating complete, separate base plate 3 and get final product with chassis 4, realized efficiently articulating.
For above-described embodiment, the flange 221a of piston rod 221 ends still can be fixing with base plate 23 by the second bolt 224, as shown in Figure 2, the fixing of the second bolt 224 can further be guaranteed the steadiness that flange 221a is connected with base plate 23, and not only relies on the conflict of base plate 23 upper shoulder hole step surfaces.And the second bolt 224 can make between flange 221a and the chassis 4 and produce certain interval fixedly the time, further reduces the wearing and tearing of flange 221a.
Except above-mentioned counterbalanced weight hanging device 2, the present invention also provides a kind of hoisting crane, comprise chassis 4, be arranged at the turntable 1 on the chassis 4, and the counterbalanced weight hanging device 2 that counterbalanced weight 3 can be mounted on turntable 1, counterbalanced weight hanging device 2 is the described counterbalanced weight hanging device 2 of above-mentioned arbitrary embodiment.Because above-mentioned counterbalanced weight hanging device 2 has above-mentioned technique effect, the hoisting crane with this counterbalanced weight hanging device 2 also has identical technique effect, no longer repeats to discuss herein.
Be provided for the first otic placode 211a of articulating with rotating platform of crane 1 at counterbalanced weight support 21, the first otic placode 211a is provided with the first mount hole 211b, when counterbalanced weight support 21 adopted aforesaid carrier 212 and hitching frame 211, obvious the first otic placode 211a can be arranged on the hitching frame 211.The afterbody of turntable 1 correspondingly is provided with the second otic placode 11, the second otic placodes 11 and is provided with the second mount hole 12.Comprise that also hydraulic pressure wears shaft device 15, hydraulic pressure is worn shaft device 15 and is had hydraulic actuating cylinder, fixed support and bearing pin, and fixed support can support bearing pin, and hydraulic actuating cylinder flexible can the drive pin shaft extension goes out or retract.
When counterbalanced weight oil cylinder 22 with 21 jackings of counterbalanced weight support when articulating position corresponding to position with turntable 1, i.e. the first mount hole 211b and the 12 coaxial settings of the second mount hole of this moment, then hydraulic actuating cylinder can the drive pin shaft extension goes out and then inserts the first mount hole 211b and the second mount hole 12, and then the first otic placode 211a and the second otic placode 11 are located.Can find out that from Fig. 1,3 carrier 212 is provided with two first otic placode 211a, turntable 1 afterbody correspondingly is provided with two second otic placodes 11.Under normal circumstances, the first mount hole 211b and the second mount hole 12 are horizontally disposed with, after then articulating, counterbalanced weight support 21 relative turntables 1 can't move up and down, and the end of bearing pin can be fixed or spring cotter location by nut, and then counterbalanced weight support 21 also can't sway, realize reliably articulating, and articulate conveniently, can improve and articulate efficient, also be convenient to dismounting.
To articulate reliability in order further improving, can also to be provided with the 21a of spacing hole on the counterbalanced weight support 21, shown in Fig. 1,3,5, and at turntable 1 limited post 13 that can insert in the 21a of this spacing hole is set.After counterbalanced weight hanging device 2 was by jacking, the 21a of spacing hole was gradually near limited post 13, thereby limited post 13 inserts heavy support 21 double swerves of limiting balance in the 21a of spacing hole on the one hand, improves to articulate reliability; On the other hand, after counterbalanced weight oil cylinder 22 inserts counterbalanced weight support 21 jackings to limited post 13 in the 21a of spacing hole fully, counterbalanced weight support 21 can't continue to rise, be the just corresponding position that articulates of the first otic placode 211a and the second otic placode 11 with the Position Design of this moment, then the cooperation of limited post 13 and the 21a of spacing hole has realized articulating determining of position, when avoiding the 22 stroke misoperationes of counterbalanced weight oil cylinder or producing other faults, impact articulates efficient.
For the various embodiments described above, counterbalanced weight 3 can comprise the chain latching device, and the chain latching device comprises chain 32.The side of each counterweight block of counterbalanced weight 3 can all arrange shrinkage pool and be located at the boss 31 of shrinkage pool bottom, as shown in Figure 4, when a plurality of counterweight blocks were stacked and placed on one, boss 31 vertically was arranged in order, at this moment, the chain 32 of chain latching device is placed in the shrinkage pool, and lock the boss 31 of each counterweight block, and namely adopt chain 32 that each boss 31 is enclosed in wherein, and fastening by fastener, thereby each counterweight block is bundled in together, forms counterbalanced weight 3.Certainly, each counterweight block also can adopt connecting rod, be threaded etc., and mode realizes binding, and just the reliability of chain 32 binding easy operatings and binding is higher.
More than a kind of hoisting crane provided by the present invention and counterbalanced weight hanging device thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (14)
1. counterbalanced weight hanging device that is used for hoisting crane, comprise counterbalanced weight oil cylinder (22), it is characterized in that, also comprise the counterbalanced weight support (21) that can be mounted on rotating platform of crane (1), described counterbalanced weight support (21) is used for putting counterbalanced weight (3); One end of described counterbalanced weight oil cylinder (22) connects described counterbalanced weight support (21), and the other end is supported in crane chassis (4), with the described counterbalanced weight support of jacking (21).
2. counterbalanced weight hanging device as claimed in claim 1, it is characterized in that, the cylinder barrel (222) of described counterbalanced weight oil cylinder (22) connects described counterbalanced weight support (21), and the piston rod (221) of described counterbalanced weight oil cylinder (22) is supported in crane chassis (4); Described counterbalanced weight support (21) is provided with mounting hole, the cylinder barrel (222) of described counterbalanced weight oil cylinder (22) runs through described mounting hole, and described cylinder barrel (222) connects described counterbalanced weight support (21) near the end of crane chassis (4).
3. weight-balancing device as claimed in claim 2, it is characterized in that, described mounting hole is stepped hole, described cylinder barrel (222) has radially terminal pad (222a) near the end of crane chassis (4), the diameter of described radially terminal pad (222a) is greater than the diameter holes diameter of described stepped hole, and described cylinder barrel (222) diameter is equal to or less than described diameter holes diameter; The hole, large footpath of described stepped hole is towards crane chassis (4).
4. counterbalanced weight hanging device as claimed in claim 3 is characterized in that, the radially terminal pad (222a) of described cylinder barrel (222) is bolted with described counterbalanced weight support (21).
5. such as each described counterbalanced weight hanging device of claim 1-4, it is characterized in that described counterbalanced weight support (21) comprises for the hitching frame (211) that articulates with rotating platform of crane (1) and puts the carrier (212) of described counterbalanced weight (3); Described counterbalanced weight oil cylinder (22) connects described carrier (212).
6. counterbalanced weight hanging device as claimed in claim 5, it is characterized in that, described hitching frame (211) is arranged at the middle part of described carrier (212), and the described carrier relatively described hitching frame of part (211) that is positioned at described hitching frame (211) both sides is symmetrical arranged; Counterbalanced weight hanging device (2) comprises two described counterbalanced weight oil cylinders (22), connects respectively the described carrier part of described hitching frame (211) both sides.
7. counterbalanced weight hanging device as claimed in claim 6 is characterized in that, described carrier (212) has location shrinkage pool or positioning boss (212a), to match with positioning boss or the location shrinkage pool of described counterbalanced weight (3) bottom.
8. such as each described counterbalanced weight hanging device of claim 1-4, it is characterized in that the end of the piston rod (221) of described counterbalanced weight oil cylinder (22) is provided with flange (221a); Counterbalanced weight hanging device (2) also comprises the base plate (23) that can be positioned over crane chassis (4), and described flange (221a) is positioned over crane chassis (4) by described base plate (23); Described base plate (23) has stepped hole, and the diameter of described flange (221a) is greater than the diameter holes diameter of described stepped hole, and described piston rod (221) diameter is equal to or less than described diameter holes diameter; Described diameter holes is towards described counterbalanced weight support (21).
9. counterbalanced weight hanging device as claimed in claim 8 is characterized in that, described base plate (23) has location shrinkage pool or positioning boss, in order to cooperate with positioning boss or the location shrinkage pool of described crane chassis (4).
10. counterbalanced weight hanging device as claimed in claim 8 is characterized in that, described flange (221a) is fixing by bolt and described base plate (23).
11. hoisting crane, comprise chassis (4), be arranged at the turntable (1) on the described chassis (4), and the counterbalanced weight hanging device (2) that counterbalanced weight (3) can be mounted on described turntable (1), it is characterized in that described counterbalanced weight hanging device (2) is each described counterbalanced weight hanging device (2) of claim 1-10.
12. hoisting crane as claimed in claim 11, it is characterized in that, described counterbalanced weight support (21) is provided with for the first otic placode (211a) that articulates with rotating platform of crane (1), and described the first otic placode (211a) is provided with the first mount hole (211b); The afterbody of described turntable (1) is provided with the second otic placode (11), and described the second otic placode (11) is provided with the second mount hole (12); Comprise that also hydraulic pressure wears shaft device (15), described hydraulic pressure is worn shaft device (15) and is had hydraulic actuating cylinder, fixed support and bearing pin, drives described bearing pin insertion during described hydraulic cylinder extension or breaks away from described the first mount hole (211b) and described the second mount hole (12).
13. hoisting crane as claimed in claim 11 is characterized in that, described counterbalanced weight support (21) is provided with spacing hole (21a), and described turntable (1) is provided with the limited post (13) that can insert in this spacing hole (21a).
14., it is characterized in that described counterbalanced weight (3) comprises the chain latching device such as each described hoisting crane of claim 11-13; The side of each counterweight block of described counterbalanced weight (3) is provided with shrinkage pool and is located at the boss (31) of described shrinkage pool bottom, and the chain of described chain latching device (32) is positioned at described shrinkage pool and locks the described boss (31) of each described counterweight block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210491156.5A CN102963825B (en) | 2012-11-27 | 2012-11-27 | Crane and balancing weight hooking device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491156.5A CN102963825B (en) | 2012-11-27 | 2012-11-27 | Crane and balancing weight hooking device thereof |
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| CN102963825A true CN102963825A (en) | 2013-03-13 |
| CN102963825B CN102963825B (en) | 2015-06-17 |
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| CN103303822A (en) * | 2013-07-02 | 2013-09-18 | 徐州重型机械有限公司 | Crane and counterweight loading and unloading device thereof |
| CN103407914A (en) * | 2013-08-27 | 2013-11-27 | 徐州重型机械有限公司 | Balance weight hooking device and crane |
| CN103626055A (en) * | 2013-12-04 | 2014-03-12 | 中联重科股份有限公司 | Counterweight and crane comprising same |
| CN105347209A (en) * | 2015-12-17 | 2016-02-24 | 徐州重型机械有限公司 | Balancing weight hitching device and crane |
| CN105776020A (en) * | 2016-05-05 | 2016-07-20 | 三汽车起重机械有限公司 | Crane and counterweight hitching system and counterweight hitching method thereof |
| CN107651586A (en) * | 2016-07-25 | 2018-02-02 | 利勃海尔爱茵根有限公司 | Ballast and crane |
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| JP2018048023A (en) * | 2016-07-25 | 2018-03-29 | リープヘル−ヴェルク エーインゲン ゲーエムベーハーＬｉｅｂｈｅｒｒ−Ｗｅｒｋ ＥｈｉｎｇｅｎＧｍｂＨ | Ballast device and crane |
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