CN103274318B - Platform structure and engineering mechanical device - Google Patents
Platform structure and engineering mechanical device Download PDFInfo
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- CN103274318B CN103274318B CN201310229792.5A CN201310229792A CN103274318B CN 103274318 B CN103274318 B CN 103274318B CN 201310229792 A CN201310229792 A CN 201310229792A CN 103274318 B CN103274318 B CN 103274318B
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- 238000009966 trimming Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The invention relates to a platform structure and an engineering mechanical device. The platform structure is installed on a tracked chassis and comprises a platform frame, a platform trolley, a rail bracket and a power system installation rack, wherein one end, in a length direction, of the platform frame is fixedly installed on tracked chassis, and the other end of the platform frame is fixedly connected with the rail bracket; the platform trolley is arranged below the platform frame and supports the platform frame, and a travelling function is realized; the power system installation rack is arranged on the platform frame and used for installing a power system. According to the platform structure, the rail bracket is connected in the length direction of the platform frame, so that an elongated frame type platform structure is formed, and widths of parts forming the platform structure can be controlled conveniently; besides, the frame type structure is lighter, so that the weight and the dimension of the platform structure are limited integrally, and the manufacturing cost is reduced; and weights of the parts forming the platform structure are lighter, so that and disassembly, assembly and transportation are easier, accordingly, the disassembly and assembly efficiency is improved, and processing and transportation are facilitated.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of platform structure and engineering mechanical device.
Background technology
For the lifting of large-scale vertical equipment, usually need to adopt whipline to assist main hoisting crane to carry out the operation of lifting slipping tail.The operation of so-called lifting slipping tail, refers to and is being lifted in the process of plumbness by horizontality by vertical equipment, the operation process of hanging vertical type equipment lower end.
The operation of existing lifting slipping tail substantially all will adopt two even more cranes to carry out, and one of them is main hoisting crane, and other is whipline.As shown in Figure 1, the crane on the right is main hoisting crane a1, and the crane on the left side is auxiliary slipping tail crane a2, as we can see from the figure, the suspension centre of main hoisting crane a1 is arranged on the top of vertical equipment a3 center of gravity, and the suspension centre of slipping tail crane a2 is arranged on the bottom of vertical equipment a3 center of gravity.
In hoisting process, main hoisting crane a1 has two kinds of slipping tail modes after vertical equipment a3 being hung saddle together with slipping tail crane a2: one is the walking of main hoisting crane a1 forward direction, revolution also lifting hook, slipping tail crane a2 unclamps suspension hook gradually, make vertical equipment a3 slowly become erectility from horizontality, realize reverse slipping tail; Another kind is that slipping tail crane a2 walks forward, turns round, and main hoisting crane is turned round and lifting hook thereupon, makes vertical equipment a3 upright, realizes slipping tail.
Fig. 2 gives the structural representation of existing slipping tail crane, can see, the slipping tail crane that the operation of lifting slipping tail uses mainly uses crawler crane to realize, and the rotatable platform structure of crawler crane is arranged on crawler crane chassis, be used for installing and fixing lifting power and control system, clump weight, jib etc.Because the volume and weight being arranged on the various parts on platform structure is comparatively large, make the size of the platform structure carrying these parts and weight also corresponding comparatively large, costly, dismounting more complicated, is unfavorable for processing and transport to manufacturing cost.
Summary of the invention
The object of the invention is to propose a kind of platform structure and engineering mechanical device, can manufacturing cost be reduced, improve dismounting efficiency, be convenient to processing and transport.
For achieving the above object, the invention provides a kind of platform structure, be arranged on crawler body, comprising: platform framework, platform dolly, rail brackets and power system erecting frame, described platform framework one end is in the longitudinal direction fixedly mounted on described crawler body, the described platform framework other end is in the longitudinal direction fixedly connected with described rail brackets, described platform dolly is arranged under described platform framework, for supporting described platform framework, and realize the walking function of described platform structure, described power system erecting frame is arranged on described platform framework, for installing power system.
Further, the described platform framework bracing frame that specifically comprises two parallel main support beams and be welded between described two main support beams.
Further, the one end be fixedly connected with described rail brackets at described platform framework is also provided with guide rail supporting frame, described guide rail supporting frame is fixedly installed between described two main support beams, described rail brackets comprises class L-type connecting portion, guide supporting framework and guide rail, described class L-type connecting portion is connected with described guide supporting framework, described guide rail is fixedly installed on the top of described class L-type connecting portion and described guide supporting framework, and described class L-type connecting portion is fixedly connected with described guide rail supporting frame.
Further, at least one platform dolly is also provided with in the below of described guide supporting framework.
Further, described platform dolly comprises rolling wheel support frame, four groups of rollers and framework fixed underpan, described rolling wheel support frame is arranged on the both sides of described framework fixed underpan, described four groups of rollers are separately positioned on four symmetric positions on described rolling wheel support frame, and described framework fixed underpan is fixed by two main support beams of bearing pin and described platform framework.
Further, described power system erecting frame comprises power system erecting stage and multiple feet, and described multiple feet is arranged at the lower surface of described power system erecting stage, and is fixedly connected with described two main support beams.
Further, the main support beam of described platform framework and bracing frame, and the support frame of described rail brackets all adopt steel plate bending after case face, the heavy in section beam that formed of welding.
Further, described two main support beams are also provided with passing oil-cylinder fixer, described passing oil-cylinder fixer comprises many group detachable card ring structures and snap ring supporting construction, described detachable card ring structure realizes the fixation to the cylinder barrel passing oil cylinder by bolt, described snap ring supporting construction is arranged between described detachable card ring structure and described main support beam, forms the supporting role to described detachable card ring structure.
Further, also be provided with in described snap ring supporting construction and pass oil cylinder micromatic setting, described passing oil cylinder micromatic setting comprises the first stacked from top to bottom analog-U shaped stay bearing plate and the second analog-U shaped stay bearing plate, and at least one trimming bolt, described detachable card ring structure is fixed on the recessed surface of described first analog-U shaped stay bearing plate, at least one trimming bolt described is through described second analog-U shaped stay bearing plate, end leans the convex surfaces of described first analog-U shaped stay bearing plate, the gap of described first analog-U shaped stay bearing plate and the second analog-U shaped stay bearing plate is changed by rotating at least one trimming bolt described, adjust the position relationship of described passing oil cylinder and described main support beam.
Based on technique scheme, the present invention is connected to rail brackets on the length direction of platform framework, define the frame-type platform structure of elongated shape, be convenient to the width of all parts controlling composition platform structure, add that tower structure is lighter, this just limits weight and the size of platform structure on the whole, thus reduces manufacturing cost; And all parts lighter in weight of composition platform structure, also make dismounting more easy with transport, thus improve dismounting efficiency, be convenient to processing and transport.
In another embodiment, the described platform framework bracing frame that specifically comprises two parallel main support beams and be welded between described two main support beams.The structure of this platform framework is simple, is easy to handling, and can guarantees the parallelism between two main support beams by bracing frame.
In another embodiment, the one end be fixedly connected with described rail brackets at described platform framework is also provided with guide rail supporting frame, described guide rail supporting frame is fixedly installed between described two main support beams, described rail brackets comprises class L-type connecting portion, guide supporting framework and guide rail, described class L-type connecting portion is connected with described guide supporting framework, described guide rail is fixedly installed on the top of described class L-type connecting portion and described guide supporting framework, and described class L-type connecting portion is fixedly connected with described guide rail supporting frame.Rail brackets extends out in one end of platform framework, can obtain larger area of contact by the fixed form of class L-type connecting portion and described guide rail supporting frame, and then makes rail brackets obtain more stable supporting role.
In another embodiment, at least one platform dolly is also provided with in the below of described guide supporting framework.Below guide supporting framework, increase platform dolly can make rail brackets become non-cantilever beam form, thus obtains more stable supporting role.
In another embodiment, described platform dolly comprises rolling wheel support frame, four groups of rollers and framework fixed underpan, described rolling wheel support frame is arranged on the both sides of described framework fixed underpan, described four groups of rollers are separately positioned on four symmetric positions on described rolling wheel support frame, and described framework fixed underpan is fixed by two main support beams of bearing pin and described platform framework.Platform dolly adopts four groups of rollers to the stable support of framework fixed underpan, can additionally provide the walking function of platform structure simultaneously.
In another embodiment, described power system erecting frame comprises power system erecting stage and multiple feet, and described multiple feet is arranged at the lower surface of described power system erecting stage, and is fixedly connected with described two main support beams.Utilize feet can form certain space in the below of power system erecting stage, be convenient to other structures that can orbit are installed.
In another embodiment, the main support beam of described platform framework and bracing frame, and the support frame of described rail brackets all adopt steel plate bending after case face, the heavy in section beam that formed of welding.Case face, the heavy in section beam that after adopting this steel plate bending, welding is formed can obtain good stiffness characteristics, easily meets the higher stiffness requirement of the frame-type platform structure of elongated shape, and also lower on cost.
In another embodiment, described two main support beams are also provided with passing oil-cylinder fixer, described passing oil-cylinder fixer comprises many group detachable card ring structures and snap ring supporting construction, described detachable card ring structure realizes the fixation to the cylinder barrel passing oil cylinder by bolt, described snap ring supporting construction is arranged between described detachable card ring structure and described main support beam, forms the supporting role to described detachable card ring structure.For adopting the engineering equipment passing oil cylinder, in order to be fixed passing oil cylinder, form fixing cylinder barrel by passing oil-cylinder fixer, being convenient to rod end and driving other structures connected to slide on rail brackets.
In another embodiment, also be provided with in described snap ring supporting construction and pass oil cylinder micromatic setting, described passing oil cylinder micromatic setting comprises the first stacked from top to bottom analog-U shaped stay bearing plate and the second analog-U shaped stay bearing plate, and at least one trimming bolt, described detachable card ring structure is fixed on the recessed surface of described first analog-U shaped stay bearing plate, at least one trimming bolt described is through described second analog-U shaped stay bearing plate, end leans the convex surfaces of described first analog-U shaped stay bearing plate, the gap of described first analog-U shaped stay bearing plate and the second analog-U shaped stay bearing plate is changed by rotating at least one trimming bolt described, adjust the position relationship of described passing oil cylinder and described main support beam.If the passing oil cylinder be fixed on main support beam is not exclusively parallel with main support beam, then when applying hydraulic oil easily because component causes the distortion or destruction of passing oil cylinder or main support beam, therefore trimming bolt can be utilized to adjust respectively many group detachable card ring structures, thus obtain passing oil cylinder and main support beam parallel relation more accurately.
For achieving the above object, the invention provides a kind of engineering mechanical device, comprise crawler body, wherein also comprise aforesaid platform structure.Owing to have employed aforesaid platform structure, therefore engineering mechanical device of the present invention has also possessed the technique effect that aforesaid platform structure possesses accordingly.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the principle of work schematic diagram of existing lifting slipping tail operation.
Fig. 2 is the structural representation of existing slipping tail crane.
Fig. 3 is the structural representation of an embodiment of platform structure of the present invention.
Fig. 4 is the scheme of installation of platform structure embodiment of the present invention in slipping tail machine.
Fig. 5 is the structural representation of platform framework in platform structure embodiment of the present invention.
Fig. 6 is the structure for amplifying schematic diagram passed oil-cylinder fixer in Fig. 5 and pass oil cylinder micromatic setting.
Fig. 7 is the structural representation of platform dolly in platform structure embodiment of the present invention.
Fig. 8 is the structural representation of platform structure embodiment middle guide support of the present invention.
Fig. 9 is the structural representation of platform structure embodiment medium power system erecting frame of the present invention.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
What existing slipping tail crane adopted is the mode that suspension hook vertically lifts, consider that the sling bottom in the vertical direction height of lift of vertical equipment of slipping tail crane is limited, the vertical power hoisted is converted into a horizontal force by the lift system of horizontal direction by therefore novel slipping tail machine, reduces the whole height of slipping tail car.And this slipping tail car is owing to horizontal direction needing certain motion space, therefore existing platform structure cannot meet the requirement of this novel slipping tail machine.
As shown in Figure 3, be the structural representation of an embodiment of platform structure of the present invention.The platform structure of the present embodiment is applicable to slipping tail machine, is also applicable to the engineering mechanical device that other need certain motion space in the horizontal direction.
Still for slipping tail machine, Fig. 4 gives the scheme of installation of platform structure in slipping tail machine.Can see, the platform structure in the present embodiment is arranged on crawler body 1, and platform structure comprises platform framework 10, platform dolly 30, rail brackets 20 and power system erecting frame 40.Platform framework 10 one end is in the longitudinal direction fixedly mounted on crawler body 1, platform framework 10 other end is in the longitudinal direction fixedly connected with rail brackets 20, platform dolly 30 is arranged under platform framework 10, for support platform framework 10, and the walking function of implementation platform structure, power system erecting frame 40 is arranged on platform framework 10, for installing power system.
In the present embodiment, platform framework is connected to rail brackets in the longitudinal direction, entirety defines the frame-type platform structure of elongated shape, this platform structure is convenient to the width controlling each constituent elements, add tower structure lighter in weight, this just limits weight and the size of platform structure entirety on the whole, thus reduces manufacturing cost; And each constituent elements lighter in weight of platform structure, also make dismounting more easy with transport, thus improve dismounting efficiency, be convenient to processing and transport.
Fig. 5 gives the scheme of installation of platform structure embodiment of the present invention in slipping tail machine.In Figure 5, the bracing frame 12 that platform framework 10 specifically comprises two parallel main support beams 11 and is welded between two main support beams 11, and the structure of this platform framework is simple, is easy to handling, and the parallelism between two main support beams can be guaranteed by bracing frame.
As can see from Figure 5, the one end be fixedly connected with rail brackets 20 at platform framework 10 can also be provided with guide rail supporting frame 13, and guide rail supporting frame 13 is fixedly installed between two main support beams 11.Fig. 8 shows the structural representation of platform structure embodiment middle guide support of the present invention.In fig. 8, the class L-type connecting portion 22 of the rail brackets just 20 coordinated with guide rail supporting frame 13.Except class L-type connecting portion 22, rail brackets 20 also comprises guide supporting framework 21 and guide rail 23.Class L-type connecting portion 22 is connected with guide supporting framework 21, and guide rail 23 is fixedly installed on the top of class L-type connecting portion 22 and guide supporting framework 21, and class L-type connecting portion 22 is fixedly connected with guide rail supporting frame 13.
Because rail brackets one end at platform framework extends outward, the problem of vibration and distortion will be considered in use, and larger area of contact can be obtained by the fixed form of class L-type connecting portion and guide rail supporting frame, and then rail brackets is made to obtain more stable supporting role.In order to make rail brackets obtain further stable support function, can also at least one platform dolly (not shown) be also set in the below of guide supporting framework.And rail brackets can be made to become non-cantilever beam form by arranging platform dolly, thus obtain more stable supporting role.
Fig. 7 shows the structural representation of platform dolly in platform structure embodiment of the present invention.In the figure 7, platform dolly 30 comprises rolling wheel support frame 32, four groups of rollers 33 and framework fixed underpan 31.Rolling wheel support frame 32 is arranged on the both sides of framework fixed underpan 31, and four groups of rollers 33 are separately positioned on four symmetric positions on rolling wheel support frame 32, and framework fixed underpan 31 is fixed by two main support beams 11 of bearing pin and platform framework 10.Roller 33 can adopt the roller of casting roller or band rubber tire, multiple circular steel plate also can be adopted overlapping and the mode of welding, can reduce manufacturing cost.And four groups of rollers that platform dolly uses to the stable support of framework fixed underpan, can additionally provide the walking function of platform structure simultaneously.
Fig. 9 shows the structural representation of platform structure embodiment medium power system erecting frame of the present invention.In fig .9, power system erecting frame 40 comprises power system erecting stage 41 and multiple feet 42, power system 90(comprises driving engine, oil falls apart) can be arranged on power system erecting stage 41, and multiple feet 42 is arranged at the lower surface of power system erecting stage, and be fixedly connected with two main support beams 11.Can see from Fig. 9 and Fig. 3, utilize feet can form certain space in the below of power system erecting stage, be convenient to other structures (see the oil cylinder below the power system erecting stage in Fig. 4 and hawser etc.) that can orbit are installed.
The main support beam of the platform framework in the various embodiments described above and bracing frame, and the support frame of described rail brackets can adopt steel plate bending after case face, the heavy in section beam that formed of welding.Case face, the heavy in section beam that after adopting this steel plate bending, welding is formed can obtain good stiffness characteristics, easily meets the higher stiffness requirement of the frame-type platform structure of elongated shape, and also lower on cost.
Can see from the amplification assumption diagram shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, two main support beams 11 can also be arranged and pass oil-cylinder fixer 50, this passing oil-cylinder fixer 50 comprises many group detachable card ring structures 51 and snap ring supporting construction 52.Detachable card ring structure 51 comprises two semi-circular structure, the fixation to the cylinder barrel passing oil cylinder 80 just can be realized by bolt tightening after fastening, snap ring supporting construction 52 is arranged between detachable card ring structure 15 and main support beam 11, forms the supporting role to detachable card ring structure 15.For adopting the engineering equipment passing oil cylinder, such as slipping tail machine, pass oil-cylinder fixer 50 and can fix the cylinder barrel passing oil cylinder 80, and the one end of passing oil cylinder 80 is fixed on crawler body 1, the other end is fixedly connected with movable pulley rack 70, when the piston rod passing oil cylinder 80 is protruding, piston rod can drive movable pulley rack 70 roll on the guide rail 23 of rail brackets 20 or slide.And owing to passing the fixation of oil-cylinder fixer 50, can not there is rocking on the length direction of platform framework or Width in the cylinder barrel passing oil cylinder 80 when piston rod movement.
In addition, consider if the passing oil cylinder be fixed on main support beam is not exclusively parallel with main support beam, then when applying hydraulic oil easily because component causes the distortion or destruction of passing oil cylinder or main support beam.Therefore can also arrange in snap ring supporting construction 52 and pass oil cylinder micromatic setting, this passing oil cylinder micromatic setting comprises the first stacked from top to bottom analog-U shaped stay bearing plate 53 and the second analog-U shaped stay bearing plate 54, and at least one trimming bolt 55.Detachable card ring structure 51 is fixed on the recessed surface of the first analog-U shaped stay bearing plate 53, and at least one trimming bolt 55 is through the second analog-U shaped stay bearing plate 54, the end of trimming bolt 55 bear against the convex surfaces of the first analog-U shaped stay bearing plate 53, operating personal can change the gap of the first analog-U shaped stay bearing plate 53 and the second analog-U shaped stay bearing plate 54 by rotary fine adjustment bolt 55, adjust the position relationship passing oil cylinder 80 and main support beam 11, by this adjustment mode, can obtain and pass oil cylinder 80 and main support beam 11 parallel relation more accurately, avoid because the component on the Width of platform framework 10 causes the distortion or destruction of passing oil cylinder 80 or main support beam 11.
In the platform structure of the various embodiments described above, the overall width of each component part is all no more than 2500mm, this is under normal conditions lower than the maximum width 3500mm of framing member transport, and lighter in weight, therefore both economical in transport, and Each part is compact, be also convenient to dismounting and carrying operation.In addition, connection mode mainly bolt assembly and connection mode or the pinned connection of each component part of the platform structure of the various embodiments described above, therefore also very convenient in dismounting, efficiency is higher.
Each embodiment of platform structure of the present invention goes for various with crawler body, and needs the engineering mechanical device of certain motion space in the horizontal direction, is particularly useful for slipping tail machine.These engineering mechanical devices have possessed the above-mentioned technique effect of platform structure of the present invention accordingly, have just repeated no more here.
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 with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; 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 of the present invention protection.
Claims (8)
1. a platform structure, be arranged on crawler body, it is characterized in that, comprise: platform framework, platform dolly, rail brackets and power system erecting frame, described platform framework one end is in the longitudinal direction fixedly mounted on described crawler body, the described platform framework other end is in the longitudinal direction fixedly connected with described rail brackets, described platform dolly is arranged under described platform framework, for supporting described platform framework, and realize the walking function of described platform structure, described power system erecting frame is arranged on described platform framework, for installing power system, the bracing frame that described platform framework specifically comprises two parallel main support beams and is welded between described two main support beams, the one end be fixedly connected with described rail brackets at described platform framework is also provided with guide rail supporting frame, described guide rail supporting frame is fixedly installed between described two main support beams, described rail brackets comprises class L-type connecting portion, guide supporting framework and guide rail, described class L-type connecting portion is connected with described guide supporting framework, described guide rail is fixedly installed on the top of described class L-type connecting portion and described guide supporting framework, described class L-type connecting portion is fixedly connected with described guide rail supporting frame.
2. platform structure according to claim 1, is characterized in that, is also provided with at least one platform dolly in the below of described guide supporting framework.
3. platform structure according to claim 1, it is characterized in that, described platform dolly comprises rolling wheel support frame, four groups of rollers and framework fixed underpan, described rolling wheel support frame is arranged on the both sides of described framework fixed underpan, described four groups of rollers are separately positioned on four symmetric positions on described rolling wheel support frame, and described framework fixed underpan is fixed by two main support beams of bearing pin and described platform framework.
4. platform structure according to claim 1, it is characterized in that, described power system erecting frame comprises power system erecting stage and multiple feet, and described multiple feet is arranged at the lower surface of described power system erecting stage, and is fixedly connected with described two main support beams.
5. platform structure according to claim 1, is characterized in that, the main support beam of described platform framework and bracing frame, and the support frame of described rail brackets all adopt steel plate bending after case face, the heavy in section beam that formed of welding.
6. according to the arbitrary described platform structure of Claims 1 to 5, it is characterized in that, described two main support beams are also provided with passing oil-cylinder fixer, described passing oil-cylinder fixer comprises many group detachable card ring structures and snap ring supporting construction, described detachable card ring structure realizes the fixation to the cylinder barrel passing oil cylinder by bolt, described snap ring supporting construction is arranged between described detachable card ring structure and described main support beam, forms the supporting role to described detachable card ring structure.
7. platform structure according to claim 6, it is characterized in that, also be provided with in described snap ring supporting construction and pass oil cylinder micromatic setting, described passing oil cylinder micromatic setting comprises the first stacked from top to bottom analog-U shaped stay bearing plate and the second analog-U shaped stay bearing plate, and at least one trimming bolt, described detachable card ring structure is fixed on the recessed surface of described first analog-U shaped stay bearing plate, at least one trimming bolt described is through described second analog-U shaped stay bearing plate, end leans the convex surfaces of described first analog-U shaped stay bearing plate, the gap of described first analog-U shaped stay bearing plate and the second analog-U shaped stay bearing plate is changed by rotating at least one trimming bolt described, adjust the position relationship of described passing oil cylinder and described main support beam.
8. an engineering mechanical device, comprises crawler body, it is characterized in that, also comprises according to the arbitrary described platform structure of claim 1 ~ 7.
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| CN201310229792.5A CN103274318B (en) | 2013-06-08 | 2013-06-08 | Platform structure and engineering mechanical device |
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| CN201310229792.5A CN103274318B (en) | 2013-06-08 | 2013-06-08 | Platform structure and engineering mechanical device |
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| CN104192206A (en) * | 2014-09-03 | 2014-12-10 | 徐工集团工程机械股份有限公司 | Steering mechanism, driven system and crawler chassis |
| CN104527491A (en) * | 2014-12-30 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Lifting oil cylinder fixing device and dumper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6322104B1 (en) * | 1999-03-02 | 2001-11-27 | Clark Equipment Company | Excavator frame and method of assembly |
| CN101049891A (en) * | 2007-04-25 | 2007-10-10 | 李荣生 | Composition type multifunctional crane |
| DE102008032739B4 (en) * | 2008-01-25 | 2021-10-21 | Liebherr-Werk Ehingen Gmbh | Mobile crane and method of assembly |
| CN201873467U (en) * | 2010-11-26 | 2011-06-22 | 徐工集团工程机械股份有限公司建设机械分公司 | Crawler crane and split rotary table thereof |
| CN203373036U (en) * | 2013-06-08 | 2014-01-01 | 徐工集团工程机械股份有限公司 | Platform structure and engineering mechanical equipment |
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Inventor after: Ren Haiyan Inventor after: Zhang Zhuo Inventor after: Sun Jichan Inventor after: Lin Hua Inventor after: Li Long Inventor before: Ren Haiyan Inventor before: Zhang Zhuo Inventor before: Lin Hua Inventor before: Li Long |
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Free format text: CORRECT: INVENTOR; FROM: REN HAIYAN ZHANG ZHUO LIN HUA LI LONG TO: REN HAIYAN ZHANG ZHUO SUN JICHANLIN HUA LI LONG |
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