CN103723637A - Frame structure of tire crane - Google Patents
Frame structure of tire crane Download PDFInfo
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- CN103723637A CN103723637A CN201310582801.9A CN201310582801A CN103723637A CN 103723637 A CN103723637 A CN 103723637A CN 201310582801 A CN201310582801 A CN 201310582801A CN 103723637 A CN103723637 A CN 103723637A
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- 241000826860 Trapezium Species 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 3
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- 240000006802 Vicia sativa Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
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- 125000001145 hydrido group Chemical group *[H] 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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Abstract
The invention relates to a frame structure of a tire crane. The frame structure comprises a front frame section, a rear front section and a rotating support, wherein the rear frame section adopts an inverted trapezoidal box type structure, and the width of the upper part of the inverted trapezoidal box type structure is larger than that of the lower part; the rear frame section adopts an integrated structure; and the rotating support is a pop-up type rotating support which is arranged in the middle of the top of the rear frame section. According to the frame structure of the tire crane, a cross section is inverted trapezoidal, so that anti-bending inertia moment and anti-torque inertia moment of the frame structure are improved, and further, the load-lifting capacity of the crane is improved on the premise that the width and the weight of a crane body are not increased; and moreover, the pop-up rotating support is adopted to replace a gravity center sinking type rotating support in the prior art, so that inside and outside welding joints in the rotating support position are remarkably reduced, the integral rigidity of the frame structure is improved, and the influence of stress concentration is dispersed.
Description
Technical field
The present invention relates to engineering machinery field, relate in particular to a kind of rubber tired crane body frame structure for automotive.
Background technology
At present, the chassis structure of rubber tired crane is combined by section before and after forward and backward fixed supporting leg and vehicle frame conventionally.For example, the chassis structure of rubber tired crane as shown in Figure 1, it is H type leg structure, comprises front section of vehicle frame 1 ', vehicle frame back segment 2 ', front fixed supporting leg 3 ', rear fixed supporting leg 4 ', pivoting support 5 ' and movable supporting legs 6 '.Be illustrated in figure 2 the chassis structure of super-tonnage rubber tired crane, it is X-type leg structure, comprise front section of vehicle frame 7 ', vehicle frame back segment 8 ', fixed supporting leg 9 ' and pivoting support 10 ', vehicle frame back segment 8 ' is divided into two sections, for segmentation structure, pivoting support 10 ' is arranged between two sections of vehicle frame back segments 8 '.Vehicle frame back segment is craning weight of same operation or the main force part while travelling, stressed larger, while travelling, be subject to the impact of high tilting moment, lift heavy load or the impact load of travelling under complicated lift heavy operating environment and complex road condition, easily ftracture in the weaker position of vehicle frame back segment, distortion and unstable phenomenon, therefore, the bending resistance of raising vehicle frame back segment and anti-twisting property are the keys that improves hoisting crane load-carrying capacity.
Vehicle frame back segment of the prior art normally adopts the box type construction being combined by beam, plate, and the cross section of box type construction is generally rectangle, and as shown in Figure 3, bending resistance moment of inertia and the antitorque moment of inertia of rectangle frame itself are little, and there are the following problems.
1) light-weight design of the rectangle frame state that reached capacity.The raising of the weight capacity of product will certainly increase the own wt of vehicle frame, along with the continuous increase of hoisting weight of crane, vehicle frame suffered moment of flexure and moment of torsion when hoisting operation is also increasing, adopt version heavy in section can effectively improve bending resistance and the anti-twisting property of vehicle frame, but vehicle body cross section is limited and can not infinitely be improved with hoisting weight because travelling, tare also must meet road conditions driving conditions simultaneously, and the version optimal design of rectangle frame has reached ultimate limit state, cannot meet the requirement that load carrying ability improves.
2) the strength and stiffness optimization structure of rectangle frame finalizes the design almost.Rectangle frame is at loss of weight or do not increase the contour level that needs to keep strength and stiffness on the basis of deadweight, even wish that the mode that improves frame strength and rigidity by changing the inner brace panel quantity of vehicle frame and layout has arrived bottleneck, the limitation of brace panel is can only local intensity or the rigidity that improves structure, and being difficult to has obvious lifting on the whole at vehicle frame.
3) tyre revolution is to being restricted.The raising of vehicle body load-carrying requires to adopt larger tire, realize the turn radius in less space, and rectangle frame is subject to body width restriction, thereby cause tire space layout deficiency, make deflection angle less, cannot realize less space and turn to more neatly, aspect Turning radius, be difficult to obtain more significantly and break through.
Summary of the invention
The object of the invention is to propose a kind of rubber tired crane body frame structure for automotive, can improve its bending resistance moment of inertia and antitorque moment of inertia, reduce weld seam, improve the integral rigidity of body frame structure for automotive.
For achieving the above object; the invention provides a kind of rubber tired crane body frame structure for automotive; it comprises front section of vehicle frame, vehicle frame back segment and pivoting support, the box-structure that described vehicle frame back segment is inverted trapezoidal, and the upper width of the box-structure of described inverted trapezoidal is greater than lower width; Described vehicle frame back segment is one-piece construction, and described pivoting support is support type pivoting support, and described support type pivoting support is arranged on the crown center position of described vehicle frame back segment.
Further, the disconnected cross section of described vehicle frame back segment adopts the form of variable section, by reducing the tail height of described vehicle frame back segment, makes the disconnected sectional area of the afterbody of described vehicle frame back segment be less than the disconnected sectional area at front portion and the middle part of described vehicle frame back segment.
Further, described vehicle frame back segment is by the web of upper cover plate, lower shoe, both sides, and many plate splicing welding form the box-structure of described inverted trapezoidal.
Further, described vehicle frame back segment is by upper cover plate, and the box-structure of the described inverted trapezoidal of integrated " U " shape bent plate welding formation, and described integrated " U " shape bent plate has formed the lower shoe of box-structure and the web of both sides of described inverted trapezoidal.
Further, web is symmetrical arranged described in the both sides of the box-structure of described inverted trapezoidal, and the angular range of described web and horizontal surface is 60 °～85 °.
Further, the inner side of the web of described upper cover plate, lower shoe, both sides all arranges bilayer or double-deck above gusset, and described gusset is along the length direction setting of described vehicle frame back segment.
Further, in the box-structure of described inverted trapezoidal, be provided with some lateral partitions and some fore and aft diaphragm.
Further, the inner side, position of welding hanging oil cylinder support on the described web of both sides is provided with brace panel, the described gusset of bilayer arranging on described brace panel and described web, described web, and described lateral partitions connection, described brace panel and described web, double-deck described gusset and the described lateral partitions form cam box.
Further, described in described lower shoe, both sides, on web, described lateral partitions and described fore and aft diaphragm, be provided with auxiliary hole.
Based on technique scheme, the disconnected cross section of body frame structure for automotive of the present invention is inverted trapezoidal, under same cross-sectional area and height condition, trapezoid cross section moment of inertia is larger than the moment of inertia of square-section, utilize cross sectional shape can increase the moment of inertia of body frame structure for automotive, therefore, inverted trapezoidal structure vehicle frame provided by the invention can improve bending resistance moment of inertia and the antitorque moment of inertia of body frame structure for automotive comparatively significantly, and do not improving under the prerequisite of body width and tare, improving the lift heavy ability of hoisting crane; And the present invention adopts support type pivoting support to replace center of gravity sunk type pivoting support of the prior art, makes the inner and outer welding at pivoting support place have obvious minimizing, and the integral rigidity of body frame structure for automotive is corresponding raising also, has disperseed the concentrated impact of stress.
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 body frame structure for automotive schematic diagram of the H type supporting leg of hoisting crane in prior art;
Fig. 2 is the body frame structure for automotive schematic diagram of hoisting crane X-type supporting leg in prior art;
Fig. 3 is vehicle frame back segment of the prior art square-section schematic diagram;
Fig. 4 is rubber tired crane body frame structure for automotive schematic diagram provided by the invention;
Fig. 5 is the vehicle frame back segment schematic diagram of rubber tired crane body frame structure for automotive provided by the invention;
Fig. 6 is the disconnected schematic cross-section of the spliced inverted trapezoidal vehicle frame of many plates provided by the invention;
Fig. 7 is the disconnected schematic cross-section of integral type inverted trapezoidal vehicle frame provided by the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 4, rubber tired crane body frame structure for automotive provided by the invention comprises front section of vehicle frame A, vehicle frame back segment B and pivoting support C.Vehicle frame back segment B adopts integral type inverted trapezoidal structure, and its disconnected cross section is inverted trapezoidal, and disconnected cross section is variable cross-section form.Integral type inverted trapezoidal structure vehicle frame provided by the invention, for heavily loaded class chassis frame, no matter from increasing space and increasing moment of inertia aspect, or has obvious lifting from lightweight aspect.
As shown in Figure 5, the vehicle frame back segment B of rubber tired crane body frame structure for automotive provided by the invention comprises upper cover plate 1, the web 3 of lower shoe 2 and both sides, the width of upper cover plate 1 is greater than the width of lower shoe 2, upper cover plate 1, lower shoe 2 and two coxostermums 3 form box-structure, and the disconnected cross section of box-structure is inverted trapezoidal, the width on top is greater than the width of bottom, and the height of the afterbody of box-structure is lower than the height at other positions of box-structure, therefore, the area in the disconnected cross section of inverted trapezoidal of the afterbody of box-structure is less than the area in the disconnected cross section of inverted trapezoidal at other positions of box-structure, the disconnected cross section of vehicle frame back segment B is variable cross-section form.In box-structure, be provided with some fore and aft diaphragm 4 and some lateral partitions 5, fore and aft diaphragm 4 becomes some little spaces with lateral partitions 5 by box-structure interior separation.The inner side of inner side, upper cover plate 1 and the lower shoe 2 of two coxostermums 3 is provided with bilayer or double-deck above gusset 6, and gusset 6 is along the length direction setting of box-structure.
As shown in Figure 4, the pivoting support C of rubber tired crane body frame structure for automotive provided by the invention is support type pivoting support, support type pivoting support is arranged on the middle part at the box-structure top of vehicle frame back segment B, the upper cover plate 1 that is box-structure is set to sectional type, between two sections of upper cover plates 1, support type pivoting support is set.Adopt support type pivoting support than center of gravity sunk type pivoting support of the prior art, the inner and outer welding of itself and vehicle frame back segment B obviously reduces, the rigidity of entirety also improves relatively, disperseed the concentrated impact of stress, avoid the stress mutation of vehicle frame back segment B and vehicle frame afterbody, greatly improved the reliability of pivoting support C and vehicle frame back segment B junction.
The box-structure that disconnected cross section provided by the invention is inverted trapezoidal mainly contains two kinds of versions, is respectively the spliced inverted trapezoidal box-structure of many plates, as shown in Figure 6; And the inverted trapezoidal box-structure of integral type, as shown in Figure 7.
As shown in Figure 6, for the spliced inverted trapezoidal structure of many plates, it comprise upper cover plate 1, lower shoe 2, with upper cover plate 1 and angled two coxostermums 3 that are connected of lower shoe 2, upper cover plate 1, lower shoe 2 and two coxostermums 3 all adopt integral type sheet material to form box-structure by the mode of welding, the web 3 of both sides is outwards oblique upper inclination all, angle a with level ground formation certain angle, makes the cross section of box-structure be inverted trapezoidal.In box-structure, be provided with some fore and aft diaphragm 4 and some lateral partitions 5, the inner side of two coxostermums 3 is provided with double-deck gusset 6 simultaneously, and to improve the local stability of two coxostermums 3, gusset 6 is along the length direction setting of box-structure.
As shown in Figure 7, be integral type inverted trapezoidal structure, lower shoe 2 and two coxostermums 3 that it comprises upper cover plate 1, is wholely set, upper cover plate 1 and the lower shoe 2 and two coxostermums 3 that are wholely set form box-structure, and the disconnected cross section of box-structure is inverted trapezoidal.The lower shoe 2 being wholely set and two coxostermums 3 adopt " U " shape bent plate one-body molded.The web 3 of both sides is outwards oblique upper inclination all, and the angle a with level ground formation certain angle, makes the cross section of box-structure be inverted trapezoidal.In box-structure, be provided with some fore and aft diaphragm 4 and some lateral partitions 5, the structure of the some little box-structures that are separated into some lateral partitions 5 by some fore and aft diaphragm 4 in box-structure is substantially similar.The inner side of two coxostermums 3 is provided with double-deck gusset 6 simultaneously, and to improve the local stability of two coxostermums 3, gusset 6 is along the length direction setting of box-structure.
Integral type inverted trapezoidal structure provided by the invention, by similar " U " shape bent plate, replace the welding fabrication of two coxostermums 3 and lower shoe 2, form trapezoid cross section, this structure decrease the inside and outside large weld seam between two coxostermums 3 and lower shoe 2, greatly reduce welding quantity and welding capacity, reduced welding deformation amount, " U " shape bent plate adopts Rouno Cormer Pregrinding Wheel bending transition, stress transmission is steady, having avoided stress concentrates, improve stability and the reliability of vehicle body entirety, greatly improved the welding efficiency of vehicle frame entirety simultaneously, reduced cost of labor.
In above-described embodiment, the outside of two coxostermums 3 of vehicle frame back segment B is all welded with a hanging oil cylinder bearing 7, on hanging oil cylinder bearing 7, be provided with hanging oil cylinder 8, hanging oil cylinder 8 is the connecting devices between body frame structure for automotive and vehicle bridge, for the height of support frame structure and adjusting body frame structure for automotive.Hanging oil cylinder 8 is symmetrical arranged, and the group number of its setting is consistent with vehicle bridge number, i.e. corresponding two hanging oil cylinder 8 of vehicle bridge.Due to hanging oil cylinder 8 load that is hit, web 3 inner sides in hanging oil cylinder bearing 7 positions increase the brace panel 11 leaning to, brace panel 11 is connected with double-deck gusset 6 and lateral partitions 5, between brace panel 11, double-deck gusset 6, lateral partitions 5 and web 3, form little cam box, to prevent that web 3 from unstability occurring, and reduces the impact of impact load.
In above-described embodiment, the spliced inverted trapezoidal structure of many plates and integral type inverted trapezoidal structure, on the immovable basis of lower shoe width, can change by the angle a between web 3 and the horizontal surface of change inverted trapezoidal body frame structure for automotive the cross sectional moment of inertia of body frame structure for automotive, angle a vehicle frame moment of inertia in the time of 85 °～90 ° increases and is not obvious, and therefore vehicle frame bulk strength and rigidity improve and is few; Angle a vehicle frame moment of inertia in the time of 60 °～85 ° has obvious lifting, the more original rectangular cross section structure of moment of inertia improves 10%～30% left and right, the angle a additional bending moment that trapezium structure self produces when this scope is little, at vehicle frame bulk strength and rigidity, improve significantly simultaneously, the possibility of web 3 unstabilitys is very little; When angle a is less than 60 °, although vehicle frame moment of inertia improves obviously, the additional moment impact that trapezium structure self produces can be very large, bad for the stability of vehicle frame, moment of inertia distortion easily occurs, thereby cause web 3 unstabilitys.So the angle a between web 3 and the horizontal surface of control inverted trapezoidal vehicle frame, between 60 °～85 °, maximizes with the strength and stiffness of realizing inverted trapezoidal body frame structure for automotive.
In above-described embodiment, in lower shoe 2, fore and aft diaphragm 4 and lateral partitions 5, be provided with auxiliary hole, welder is convenient in the middle process hole 9 arranging in lateral partitions 5 and assembly crewman passes through, the two ends of box-structure are provided with swash plate, between swash plate and lateral partitions 5 and web 3, form little box-structure, on swash plate, be provided with auxiliary hole 10, auxiliary hole 10 is convenient to hand by welding and play the effect of loss of weight, to meet the requirement of human oriented design and light-weight design.
Rubber tired crane body frame structure for automotive provided by the invention has the following advantages with respect to prior art:
1) the disconnected cross section of the box-structure of the present invention's vehicle frame back segment B is set to inverted trapezoidal, under equal height and baseplate width condition, inverted trapezoidal vehicle frame load-carrying capacity is stronger than rectangle frame load-carrying capacity, therefore, under the load-carrying capacity condition identical with vehicle frame depth of section, lower shoe 2 width of inverted trapezoidal vehicle frame are than little with the rectangle frame of tonnage, lower shoe 2 width of general inverted trapezoidal vehicle frame are than the little 200mm of lower shoe 2 width of the rectangle frame with tonnage, for turning to of giant tyre provides more spacious space, and the width that reduces lower shoe 2 can be realized less turn radius by the more steering angle of the limit is set, large-tonnage level product is improved significantly aspect turning to.
2) the disconnected cross section of the box-structure of vehicle frame back segment B of the present invention is set to inverted trapezoidal, and the tail height of vehicle frame back segment B is lower than the height at other positions of vehicle frame back segment B, therefore the disconnected cross section of inverted trapezoidal vehicle frame or the form of variable section, the inverted trapezoidal vehicle frame of variable section has been avoided the stress mutation of vehicle frame back segment B afterbody, make STRESS VARIATION more steady, version is more reliable, has effectively reduced vehicle body deadweight simultaneously, has reduced financial cost.Variable section inverted trapezoidal body frame structure for automotive distributes integral type bending upper cover plate transition of the prior art is formed to variable cross-section vehicle frame according to load, effectively reduced vehicle frame deadweight, the stress mutation impact that causes of changes of section that simultaneously kept away face, makes STRESS VARIATION more steady.
3) pivoting support C of the present invention is support type pivoting support, vehicle frame back segment B is one-piece construction rather than segmentation structure of the prior art, support type pivoting support is arranged on the top of vehicle frame back segment B, adopt support type pivoting support to replace center of gravity sunk type pivoting support C of the prior art, make the inner and outer welding at pivoting support C place have obvious minimizing, the integral rigidity of body frame structure for automotive is corresponding raising also, disperseed the concentrated impact of stress, the stress mutation of having avoided vehicle frame back segment B afterbody, has improved the reliability of pivoting support C and vehicle frame back segment B junction greatly.
4) rubber tired crane body frame structure for automotive provided by the invention adopts integral type variable section inverted trapezoidal body frame structure for automotive, according to mechanical analysis method and deriving analysis, web 3 is controlled at 60 °～85 ° with the angle a of horizontal surface, this angular range obviously promotes vehicle frame bending resistance moment of inertia and antitorque moment of inertia, the additional bending moment producing due to trapezium structure self while simultaneously carrying is less on the impact of web 3 unstabilitys, therefore can bring into play the best use of of ladder type frame.
5) two coxostermum 3 inner sides, upper cover plate 1 inner side, lower shoe 2 inner sides of vehicle frame back segment B provided by the invention all arrange bilayer or double-deck above gusset 6, have promoted the local stability of two coxostermums 3, upper cover plate 1 and lower shoe 2.
6) position that hanging oil cylinder 8 is set on vehicle frame back segment B provided by the invention utilizes double-deck gusset 6, brace panel 11 and lateral partitions 5 on existing web 3 to form little cam box, can resist the impact load of hydro pneumatic suspension 7, this structure has improved vehicle frame impact resistance, has reduced the possibility of local buckling under road conditions complicated and changeable.
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. a rubber tired crane body frame structure for automotive, comprises front section of vehicle frame, vehicle frame back segment and pivoting support, it is characterized in that: the box-structure that described vehicle frame back segment is inverted trapezoidal, and the upper width of the box-structure of described inverted trapezoidal is greater than lower width; Described vehicle frame back segment is one-piece construction, and described pivoting support is support type pivoting support, and described support type pivoting support is arranged on the crown center position of described vehicle frame back segment.
2. rubber tired crane body frame structure for automotive as claimed in claim 1, it is characterized in that: the disconnected cross section of described vehicle frame back segment adopts the form of variable section, by reducing the tail height of described vehicle frame back segment, make the disconnected sectional area of the afterbody of described vehicle frame back segment be less than the disconnected sectional area at front portion and the middle part of described vehicle frame back segment.
3. rubber tired crane body frame structure for automotive as claimed in claim 2, is characterized in that: described vehicle frame back segment is by the web of upper cover plate, lower shoe, both sides, and many plate splicing welding form the box-structure of described inverted trapezoidal.
4. rubber tired crane body frame structure for automotive as claimed in claim 2, it is characterized in that: described vehicle frame back segment passes through upper cover plate, and the box-structure of the described inverted trapezoidal of integrated " U " shape bent plate welding formation, described integrated " U " shape bent plate has formed the lower shoe of box-structure and the web of both sides of described inverted trapezoidal.
5. the rubber tired crane body frame structure for automotive as described in claim 3 or 4, is characterized in that: described in the both sides of the box-structure of described inverted trapezoidal, web is symmetrical arranged, and the angular range of described web and horizontal surface is 60 °～85 °.
6. the rubber tired crane body frame structure for automotive as described in claim 3 or 4, is characterized in that: the inner side of the web of described upper cover plate, lower shoe, both sides all arranges bilayer or double-deck above gusset, and described gusset is along the length direction setting of described vehicle frame back segment.
7. rubber tired crane body frame structure for automotive as claimed in claim 6, is characterized in that: in the box-structure of described inverted trapezoidal, be provided with some lateral partitions and some fore and aft diaphragm.
8. rubber tired crane body frame structure for automotive as claimed in claim 7, it is characterized in that: the inner side, position of welding hanging oil cylinder support on the described web of both sides is provided with brace panel, the described gusset of bilayer arranging on described brace panel and described web, described web, and described lateral partitions connection, described brace panel and described web, double-deck described gusset and the described lateral partitions form cam box.
9. rubber tired crane body frame structure for automotive as claimed in claim 8, is characterized in that: described in described lower shoe, both sides, on web, described lateral partitions and described fore and aft diaphragm, be provided with auxiliary hole.
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| CN201310582801.9A CN103723637B (en) | 2013-11-19 | 2013-11-19 | Frame structure of tire crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310582801.9A CN103723637B (en) | 2013-11-19 | 2013-11-19 | Frame structure of tire crane |
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| CN103723637A true CN103723637A (en) | 2014-04-16 |
| CN103723637B CN103723637B (en) | 2017-01-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103979470A (en) * | 2014-05-19 | 2014-08-13 | 安徽昌永得机械有限公司 | High-altitude operation car frame |
| CN104527795A (en) * | 2014-12-12 | 2015-04-22 | 徐州重型机械有限公司 | Chassis frame and auto-crane |
| CN108248690A (en) * | 2018-01-24 | 2018-07-06 | 徐州重型机械有限公司 | Wheeled crane vehicle frame and wheeled crane |
| CN110228528A (en) * | 2019-07-09 | 2019-09-13 | 湖南中铁五新重工有限公司 | A kind of changeable wheelbase vehicle frame and the lifting vehicle with changeable wheelbase vehicle frame |
| CN112722096A (en) * | 2020-12-18 | 2021-04-30 | 山推工程机械股份有限公司 | Bogie frame structure of bulldozer |
| CN113104744A (en) * | 2021-04-29 | 2021-07-13 | 三一汽车起重机械有限公司 | Frame and crane |
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| CN202378960U (en) * | 2011-12-22 | 2012-08-15 | 徐州重型机械有限公司 | Crane frame and crane |
| CN202574372U (en) * | 2012-04-25 | 2012-12-05 | 中联重科股份有限公司 | Secondary frame and derrick cargo truck provided with same |
| CN202608891U (en) * | 2012-06-29 | 2012-12-19 | 中联重科股份有限公司 | Frame body for automobile crane and automobile crane |
| CN102774425A (en) * | 2012-08-08 | 2012-11-14 | 中联重科股份有限公司 | Vehicle frame |
| CN103112499A (en) * | 2013-01-31 | 2013-05-22 | 徐州重型机械有限公司 | Multi-box type inverted trapezoidal crane frame and crane provided with same |
| CN203078602U (en) * | 2013-01-31 | 2013-07-24 | 徐州重型机械有限公司 | Multi-box type inverted-trapezoidal crane frame and crane provided with same |
| CN203187318U (en) * | 2013-03-21 | 2013-09-11 | 徐工集团工程机械股份有限公司 | Frame and engineering machinery equipment |
| CN203602270U (en) * | 2013-11-19 | 2014-05-21 | 徐州重型机械有限公司 | Frame structure for tire crane |
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| CN103979470A (en) * | 2014-05-19 | 2014-08-13 | 安徽昌永得机械有限公司 | High-altitude operation car frame |
| CN103979470B (en) * | 2014-05-19 | 2016-02-03 | 安徽昌永得机械有限公司 | A kind of aloft work vehicle carriage |
| CN104527795A (en) * | 2014-12-12 | 2015-04-22 | 徐州重型机械有限公司 | Chassis frame and auto-crane |
| CN108248690A (en) * | 2018-01-24 | 2018-07-06 | 徐州重型机械有限公司 | Wheeled crane vehicle frame and wheeled crane |
| CN108248690B (en) * | 2018-01-24 | 2020-10-27 | 徐州重型机械有限公司 | Wheeled crane frame and wheeled crane |
| CN110228528A (en) * | 2019-07-09 | 2019-09-13 | 湖南中铁五新重工有限公司 | A kind of changeable wheelbase vehicle frame and the lifting vehicle with changeable wheelbase vehicle frame |
| CN112722096A (en) * | 2020-12-18 | 2021-04-30 | 山推工程机械股份有限公司 | Bogie frame structure of bulldozer |
| CN113104744A (en) * | 2021-04-29 | 2021-07-13 | 三一汽车起重机械有限公司 | Frame and crane |
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Address after: 221000 Jiangsu city of Xuzhou Province Economic and Technological Development Zone of High Road No. 68 Patentee after: Xuzhou Heavy Machinery Co., Ltd. Address before: 221004 No. 165 Copper Mountain Road, Jiangsu, Xuzhou Patentee before: Xuzhou Heavy Machinery Co., Ltd. |