CN102556861B - Counterweight pulling plate device for crane and crane - Google Patents

Counterweight pulling plate device for crane and crane Download PDF

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Publication number
CN102556861B
CN102556861B CN201210024430.8A CN201210024430A CN102556861B CN 102556861 B CN102556861 B CN 102556861B CN 201210024430 A CN201210024430 A CN 201210024430A CN 102556861 B CN102556861 B CN 102556861B
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CN
China
Prior art keywords
counterweight
plane
rotation
plate
equalizer bar
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CN201210024430.8A
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Chinese (zh)
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CN102556861A (en
Inventor
赵江平
韩雷
彭铎
李召富
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徐工集团工程机械股份有限公司
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Publication of CN102556861A publication Critical patent/CN102556861A/en
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Publication of CN102556861B publication Critical patent/CN102556861B/en

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Abstract

The invention relates to a counterweight pulling plate device for a crane. The device is characterized by comprising a rotary plane balancing stand used to be connected with the top of a mast of the crane, at least two sets of luffing plane balancing stand (10) connected with the lower part of the rotary plane balancing stand and at least two counterweight connection plates (29) connected with the lower part of each set of luffing plane balancing stand (10). The invention also relates to a crane. According to the invention, a space-formula wide-plane counterweight connection mode is formed by the rotary plane balancing stand and the luffing plane balancing stands of the counterweight pulling plate device, so the center of gravity of an integral counterweight body is effectively controlled to be in a plane formed by hinge points, stability of counterweight in a luffing plane and in a rotary plane is guaranteed, place adaptability of the whole crane is enhanced, and operation security of the whole crane is improved; furthermore, through a combined structure of a plurality of balancing stands, stress uniformity of a pulling plate and a mast structure can be effectively improved.

Description

A kind of counterweight pulling plate device for hoisting crane and hoisting crane

Technical field

The present invention relates to technical field of engineering machinery, relate in particular to a kind of counterweight pulling plate device for hoisting crane and hoisting crane.

Background technology

For meeting the lifting demand to super large equipment in the Larger Engineering Projects such as domestic petroleum, petrochemical industry, nuclear power, wind-powered electricity generation, iron and steel, hoisting crane is more and more to ultra-large type development, and lifting altitude is higher, and work range is larger, and load-carrying ability is stronger.In various types of hoisting cranes, crawler crane becomes indispensable instrument in main equipment installation with the mobile particularity of its lifting.Along with the development of maximizing, the series of problems in the processes such as the design bringing, production, transportation, installation and use, is seriously restricting the development of crawler crane, and urgently designer solves.

Counterweight arm-tie (for promoting the plate pulling device of counterweight) is one of important component part of hoisting crane, in large-scale crawler crane hoisting operation, plays a significant role.As Fig. 1, counterweight arm-tie 2 one end are connected with counterweight 1, and the other end is connected with the top of mast 4, between mast 4 and crane arm 5, are connected by crane arm luffing arm-tie 3, by front and back moment balance, thereby realize the lifting action of weight 6.

Along with crawler crane is to the development of large-tonnage more, in order to improve complete machine lifting performance, the counterweight of its requirement is more and more, and it is also more and more higher to tackle mutually counterweight arm-tie requirement.Because counterweight is more and more, area occupied can be increasing, and in the time of crawler crane walking or revolution, the stability of counterweight and balance are most important on the impact of car load safe operation.Therefore the load-carrying capacity that counterweight arm-tie should guarantee, meets the stability requirement of counterweight in the time of car load walking or revolution again, and this is that super-tonnage crawler crane counterweight is used a difficult problem of needing solution badly.

In traditional less tonnage hoisting crane, counterweight arm-tie adopts many arm-ties in a plane to be connected to the form in counterweight conventionally, the for example counterweight pulling plate device of four arm-ties in a plane, the counterweight arm-tie of this form is for the crawler crane of large-tonnage (especially super-tonnage) more, there is certain defect, for example on uneven ground, possibility balance is inadequate, counterweight is easily toppled, and the excessive problem of the local pressure that can cause mast, and then all higher to Land leveling degree and crane mast structural requirement.

In order to improve the local pressure of mast, at present also occurred adopting the counterweight pulling plate structure of large equalizing bar, but the equalizing bar enormous size of this structure needs large-scale auxiliary hoist and climbing operation platform, personnel need ascend operation, and this has just caused installing difficulty, length consuming time and with high costs.

Summary of the invention

The object of the invention is to propose a kind of counterweight pulling plate device for hoisting crane and hoisting crane, can improve supporting effect and the stress balance of counterweight arm-tie, reduce counterweight possibility of toppling, the requirement of the mast structure of the smooth degree of reduction to ground and hoisting crane.

For achieving the above object, the invention provides a kind of counterweight pulling plate device for hoisting crane, comprise: for the plane of rotation equalizer bar being connected with the mast top of described hoisting crane, be connected with at least two group luffing plane balancing framves (10) in the bottom of described plane of rotation equalizer bar, the bottom of every group of luffing plane balancing frame (10) is also connected with at least two counterweight connecting plates (29).

In technique scheme, plane of rotation equalizer bar and luffing plane balancing frame by counterweight arm-tie have formed counterweight connection mode three-dimensional, large plane, the center of gravity actv. of counterweight entirety is controlled to the luffing plane of counterweight arm-tie and turns round in the scope between putting down, guarantee the stability of counterweight in luffing plane and plane of rotation, strengthen the place comformability of hoisting crane complete machine work, improve complete machine operational security.

Further, described luffing plane balancing frame (10) comprises two long oblique pull plates (26), one end of described two long oblique pull plates (26) is all connected with the bottom of described plane of rotation equalizer bar, is connected with crossbeam (27) between the other end of described two long oblique pull plates (26).The pulling plate structure of original single luffing plane can be extended to three-dimensional pulling plate structure by two long oblique pull plates, increase the stability of counterweight in luffing plane.Connect the lower end of two long oblique pull plates by crossbeam, two long oblique pull plates and crossbeam can together with form firm class three-legged structure, increase the stability of counterweight in luffing plane.

Further, the bottom of described every group of luffing plane balancing frame (10) is also connected with two counterweight connecting plates (29), and one end of described two counterweight connecting plates (29) is connected with the two ends of described crossbeam (27) respectively.

Further, described plane of rotation equalizer bar comprises the large trapezoidal equalizer bar of plane of rotation (9) and two little trapezoidal equalizer bars of plane of rotation (8), the little trapezoidal equalizer bar of the large trapezoidal equalizer bar of described plane of rotation (9) and plane of rotation (8) is all inverted trapezoidal, and the lower end of the described little trapezoidal equalizer bars of two plane of rotations (8) is connected to respectively two end points of the large trapezoidal equalizer bar of described plane of rotation (9) upper end by conversion arm-tie (17).Counterweight arm-tie is by multipole trapezoidal equalizer bar, and in conjunction with luffing plane balancing frame, can realize multivariant pulling plate structure, the weight of counterweight is passed to mast structure through balance repeatedly, not only increase the stability of counterweight at plane of rotation, and guaranteed homogeneity and the stressed homogeneity of mast structure that arm-tie is stressed, in addition, multipole trapezoidal equalizer bar can reduce the size of equalizer bar structure, is convenient to install.

Further, the large trapezoidal equalizer bar of described plane of rotation (9) comprises parallel cross bearer (20) and large connecting plate (23), the two ends of described cross bearer (20) are connected by large oblique pull plate (21) with the two ends of described large connecting plate (23), and the two ends of described large connecting plate (23) are also connected with respectively the triangle conversion connecting plate (24) for connecting described luffing plane balancing frame (10).

Further, the little trapezoidal equalizer bar of described plane of rotation (8) comprises parallel needle beam (14) and little connecting plate (16), the two ends of described needle beam (14) are connected by little oblique pull plate (13) with the two ends of described little connecting plate (16), the two ends of described little connecting plate (16) are connected with described conversion arm-tie (17) respectively, and described conversion arm-tie (17) is changed connecting plate (18) by triangle and is connected with the top of the large trapezoidal equalizer bar of described plane of rotation (9).

Interchangeable, described luffing plane balancing frame (10) is made up of at least two equalizer bars.

Interchangeable, described luffing plane balancing frame (10) and luffing plane balancing frame adopt non-trapezoidal equalizer bar.

For achieving the above object, the invention provides a kind of hoisting crane, comprise aforementioned arbitrary counterweight pulling plate device, the top of described counterweight pulling plate device is connected with the mast top of described hoisting crane, and the bottom of described counterweight pulling plate device is connected with the hinge (30) that is connected in counterweight (1) by counterweight connecting plate (29).

Further, the bottom of described counterweight (1) is provided with crawler belt (31).

Based on technique scheme, the present invention has formed counterweight connection mode three-dimensional, large plane by plane of rotation equalizer bar and the luffing plane balancing frame of counterweight arm-tie, the center of gravity actv. of counterweight entirety is controlled in the plane that hinge forms, guarantee the stability of counterweight in luffing plane and plane of rotation, strengthen the place comformability of hoisting crane complete machine work, improve complete machine operational security; By the unitized construction of multiple equalizer bars, can effectively improve the stressed homogeneity of arm-tie and mast structure in addition.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, 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 is the schematic diagram of the action mode of the counterweight arm-tie of existing crawler crane.

Fig. 2 is the complete vehicle structure schematic diagram of hoisting crane embodiment of the present invention.

Fig. 3 is the perspective view of an embodiment of counterweight arm-tie of the present invention.

Fig. 4 A, 4B are respectively plane of rotation view and the luffing plan view of Fig. 3 embodiment.

Fig. 5 is the concrete structure schematic diagram of the luffing plane balancing frame of counterweight arm-tie embodiment of the present invention.

Fig. 6 is the concrete structure schematic diagram of the plane of rotation equalizer bar of counterweight arm-tie embodiment of the present invention.

Fig. 7 is the schematic diagram of the connection hinge of counterweight arm-tie embodiment of the present invention in counterweight.

Fig. 8 is that counterweight arm-tie embodiment of the present invention is connected to the assembling schematic diagram in counterweight.

Fig. 9 is that counterweight arm-tie embodiment of the present invention is connected to the assembling schematic diagram on mast structure.

The specific embodiment

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

First the noun data of applying in the present invention are described:

Luffing plane: the rise and fall plane at place of crane arm support.

Plane of rotation: the plane at crane rotation place.

As shown in Figure 2, be the complete vehicle structure schematic diagram of hoisting crane embodiment of the present invention.Connecting counterweight arm-tie 7 in the mast top of hoisting crane, counterweight arm-tie 7 bottoms are connecting counterweight, and the bottom of counterweight can also be provided with crawler belt.

As shown in Fig. 3, Fig. 4 A and Fig. 4 B, the structure of counterweight arm-tie 7 of the present invention comprises the plane of rotation equalizer bar and at least two group luffing plane balancing framves 10 that connect from top to bottom.The bottom of every group of luffing plane balancing frame 10 is also connected with at least two counterweight connecting plates 29.Wherein plane of rotation equalizer bar is connected with the mast top of hoisting crane, and counterweight connecting plate 29 is connected with counterweight.

In the plane of rotation view of Fig. 4 A, can see that top is the plane of rotation equalizer bar that multiple equalizer bars form, bottom is larger-size pulling plate structure, and this pulling plate structure has formed the structure of the leg-of-mutton luffing plane balancing of class frame 10 in the luffing plan view of Fig. 4 B.The connection dimension of this structure and counterweight is larger, can preferably the overall center of gravity of counterweight be controlled in the plane that 4 hinges 30 form, thereby avoid occurring the danger that counterweight is toppled.

As shown in Figure 5, be the concrete structure schematic diagram of the luffing plane balancing frame of counterweight arm-tie embodiment of the present invention.As can be seen from Figure 5, one end that luffing plane balancing frame 10 comprises 26, two long oblique pull plates 26 of two long oblique pull plates is all connected with the triangle conversion connecting plate 24 of the bottom of plane of rotation equalizer bar, is connected with crossbeam 27 between the other end of two long oblique pull plates 26.Connecting portion completes connection by bearing pin 25,28 respectively.The pulling plate structure of original single luffing plane can be extended to three-dimensional pulling plate structure by two long oblique pull plates, increase the stability of counterweight in luffing plane.Connect the lower end of two long oblique pull plates by crossbeam, connect the triangle conversion connecting plate of two long oblique pull plates, two long oblique pull plates and crossbeam can together with form firm class three-legged structure, increase the stability of counterweight in luffing plane.Its intermediate cam conversion connecting plate can regard a point as, also can regard shorter crossbeam as, is therefore referred to as class three-legged structure.

The bottom of every group of luffing plane balancing frame 10 can also be connected with two counterweight connecting plates 29, one end of two counterweight connecting plates 29 is connected with the two ends of crossbeam 27 respectively, the other end by two counterweight connecting plates 29 can with counterweight on hinge 30 form firmly annexation.

As shown in Figure 6, be the concrete structure schematic diagram of the plane of rotation equalizer bar of counterweight arm-tie embodiment of the present invention.Plane of rotation equalizer bar comprises the large trapezoidal equalizer bar 9 of plane of rotation and two little trapezoidal equalizer bars 8 of plane of rotation, the large trapezoidal equalizer bar 9 of plane of rotation and the little trapezoidal equalizer bar 8 of plane of rotation are all inverted trapezoidal, and the lower end of two little trapezoidal equalizer bars 8 of plane of rotation is connected to respectively two end points of the large trapezoidal equalizer bar of plane of rotation 9 upper ends by conversion arm-tie 17.

The large trapezoidal equalizer bar 9 of plane of rotation can comprise parallel cross bearer 20 and large connecting plate 23, and the two ends of cross bearer 20 are connected by large oblique pull plate 21 with the two ends of large connecting plate 23.Connecting portion completes connection by bearing pin 19,22.The two ends of large connecting plate 23 are also connected with respectively the triangle conversion connecting plate 24 for connecting luffing plane balancing frame 10.

The little trapezoidal equalizer bar 8 of plane of rotation comprises parallel needle beam 14 and little connecting plate 16, and the two ends of needle beam 14 are connected by little oblique pull plate 13 with the two ends of little connecting plate 16, and connecting portion completes connection by bearing pin 12,15.The two ends of little connecting plate 16 are connected with conversion arm-tie 17 respectively, and conversion arm-tie 17 is changed connecting plate 18 by triangle and is connected with the top of the large trapezoidal equalizer bar 9 of plane of rotation.

In the time that counterweight connecting plate device is stressed, luffing plane balancing frame can be by the large trapezoidal equalizer bar of plane of rotation passing to after the tension balanced bearing in plane of rotation equalizer bar, after the large trapezoidal equalizer bar balance of plane of rotation, passing to the little trapezoidal equalizer bar of plane of rotation, carry out balance through the little trapezoidal equalizer bar of plane of rotation again, finally pass to mast structure.

Fig. 7 has provided the position of the connection hinge 30 in counterweight, can find out that on the end face of counterweight, being furnished with 4 connects hinge 30, can be connected respectively with every group of two counterweight connecting plates that are connected under two groups of luffing plane balancing framves.From Fig. 8, can be connected to the assembling schematic diagram counterweight from another angle counterweight arm-tie of the present invention embodiment.Counterweight is more stable when making crane rotation avoids toppling, and movable crawler belt 31 can be set below counterweight.Fig. 9 has provided counterweight arm-tie embodiment of the present invention and has been connected to the assembling schematic diagram on mast structure.The top of plane of rotation equalizer bar is connected to the mast top of hoisting crane, and long oblique pull plate is drawn to both direction A, B according to certain angle, to assemble.

According to the structure of the counterweight arm-tie of introducing above, can find out that counterweight arm-tie is by multipole trapezoidal equalizer bar, and in conjunction with luffing plane balancing frame, can realize multivariant pulling plate structure, the weight of counterweight is passed to mast structure through balance repeatedly, not only increase the stability of counterweight at plane of rotation, and guaranteed homogeneity and the stressed homogeneity of mast structure that arm-tie is stressed.

Adopt in embodiments of the present invention multiple arm-ties, can distribute the load of counterweight, not only guaranteed the carrying of counterweight arm-tie entirety, and can realize the miniaturization of part, reduced the difficulty of manufacturing, assembling and transport.

In addition, most of accessory size of counterweight pulling plate device of the present invention is less, all can in the time of ground, just be assembled on mast, and in counterweight, connect the structures such as counterweight connecting plate, rear installation personnel in place only need stand in counterweight the pulling plate structure assembling in the just structure such as counterweight connecting plate and mast and assemble, and forms overall counterweight pulling plate device, in this process, install simpler and easy, and without auxiliary hoist and the equipment of ascending a height, so both can be cost-saving greatly, increase the benefit.

The embodiment introducing in Fig. 3-Fig. 9, luffing plane balancing frame 10 in the present invention and luffing plane balancing frame also can adopt the equalizer bar of non-other trapezoidal forms, and be not limited to introduce quantity and the form of the equalizer bar in embodiment, for example can be designed to form luffing plane balancing frame 10 etc. by least two equalizer bars.

The present invention is applicable to being applied in the hoisting crane of super-tonnage, but is applicable to too hoisting crane or other similar engineering mechanical devices that needs counterweight to connect of common tonnage.

Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request protection of the present invention.

Claims (9)

1. the counterweight pulling plate device for hoisting crane, it is characterized in that, comprise: for the plane of rotation equalizer bar being connected with the mast top of described hoisting crane, be connected with at least two group luffing plane balancing framves (10) in the bottom of described plane of rotation equalizer bar, the bottom of every group of luffing plane balancing frame (10) is also connected with at least two counterweight connecting plates (29); Described luffing plane balancing frame (10) comprises two long oblique pull plates (26), one end of described two long oblique pull plates (26) is all connected with the bottom of described plane of rotation equalizer bar, is connected with crossbeam (27) between the other end of described two long oblique pull plates (26).
2. counterweight pulling plate device according to claim 1, it is characterized in that, the bottom of described every group of luffing plane balancing frame (10) is also connected with two counterweight connecting plates (29), and one end of described two counterweight connecting plates (29) is connected with the two ends of described crossbeam (27) respectively.
3. counterweight pulling plate device according to claim 1, it is characterized in that, described plane of rotation equalizer bar comprises the large trapezoidal equalizer bar of plane of rotation (9) and two little trapezoidal equalizer bars of plane of rotation (8), the little trapezoidal equalizer bar of the large trapezoidal equalizer bar of described plane of rotation (9) and plane of rotation (8) is all inverted trapezoidal, and the lower end of the described little trapezoidal equalizer bars of two plane of rotations (8) is connected to respectively two end points of the large trapezoidal equalizer bar of described plane of rotation (9) upper end by conversion arm-tie (17).
4. counterweight pulling plate device according to claim 3, it is characterized in that, the large trapezoidal equalizer bar of described plane of rotation (9) comprises parallel cross bearer (20) and large connecting plate (23), the two ends of described cross bearer (20) are connected by large oblique pull plate (21) with the two ends of described large connecting plate (23), and the two ends of described large connecting plate (23) are also connected with respectively the first triangle conversion connecting plate (24) for connecting described luffing plane balancing frame (10).
5. counterweight pulling plate device according to claim 4, it is characterized in that, the little trapezoidal equalizer bar of described plane of rotation (8) comprises parallel needle beam (14) and little connecting plate (16), the two ends of described needle beam (14) are connected by little oblique pull plate (13) with the two ends of described little connecting plate (16), the two ends of described little connecting plate (16) are connected with described conversion arm-tie (17) respectively, and described conversion arm-tie (17) is connected with the top of the large trapezoidal equalizer bar of described plane of rotation (9) by the second triangle conversion connecting plate (18).
6. counterweight pulling plate device according to claim 1, is characterized in that, described luffing plane balancing frame (10) is made up of at least two equalizer bars.
7. counterweight pulling plate device according to claim 1, is characterized in that, described luffing plane balancing frame (10) and plane of rotation equalizer bar adopt non-trapezoidal equalizer bar.
8. a hoisting crane, it is characterized in that, comprise the arbitrary described counterweight pulling plate device of claim 1~7, the top of described counterweight pulling plate device is connected with the mast top of described hoisting crane, and the bottom of described counterweight pulling plate device is connected with the hinge (30) that is connected in counterweight (1) by counterweight connecting plate (29).
9. hoisting crane according to claim 8, is characterized in that, the bottom of described counterweight (1) is provided with crawler belt (31).
CN201210024430.8A 2012-02-06 2012-02-06 Counterweight pulling plate device for crane and crane CN102556861B (en)

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CN102745601B (en) * 2012-07-13 2014-07-16 中联重科股份有限公司 Double-creeper-truck crane and method for disassembly and replacement between double-creeper-truck crane and single-creeper-truck cranes
CN104787688B (en) * 2014-01-21 2018-11-30 武汉船用机械有限责任公司 A kind of oblique attachment device
CN104902062B (en) 2014-03-03 2019-01-15 联想(北京)有限公司 The method and electronic equipment of information processing
CN105584941B (en) * 2016-02-29 2017-06-30 浙江三一装备有限公司 A kind of truss arm reducing machine and crawler crane

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CN202449768U (en) * 2012-02-06 2012-09-26 徐工集团工程机械股份有限公司 Counterweight strap device for crane and crane

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CN202449768U (en) * 2012-02-06 2012-09-26 徐工集团工程机械股份有限公司 Counterweight strap device for crane and crane

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