CN202148152U - Wheel crane and bearing structure of wheel crane - Google Patents
Wheel crane and bearing structure of wheel crane Download PDFInfo
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- CN202148152U CN202148152U CN201120202217U CN201120202217U CN202148152U CN 202148152 U CN202148152 U CN 202148152U CN 201120202217 U CN201120202217 U CN 201120202217U CN 201120202217 U CN201120202217 U CN 201120202217U CN 202148152 U CN202148152 U CN 202148152U
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Abstract
The utility model discloses a crane bearing structure which comprises a frame rear section and a fixing landing leg, wherein a box-shaped body stretches out from a web on the side surface of the fixing landing leg for a removable landing leg to stretch out and draw back, a frame rear section web of the frame rear section is connected with the fixing landing leg, and the end part of the frame rear section web stretches to the side surface of the fixing landing leg and is welded and fixed on the side surface of the fixing landing leg. The end part of the frame rear section web stretches to the side surface of the fixing landing leg and is welded and fixed on the side surface of the fixing landing leg to form a welding seam so as to effectively avoid the stress concentration of the connection of the frame rear section and the fixing landing leg due to the abrupt change of the section, so that the stress concentration is positioned at the end part of the frame rear section web, that is, the stress concentration position and peripheral bearing plates are of an integrated structure, the intensity of the integrated structure is higher than the intensity of the welding seam, therefore, the influence of the stress concentration can be reduced, the reliability of the connection of the frame rear section and the fixing landing leg can be improved, and the stability of the hoisting work can be ensured. The utility model also discloses a wheel crane of the crane bearing structure.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of hoisting crane load larrying member.The utility model also relates to a kind of wheel crane that comprises above-mentioned hoisting crane load larrying member.
Background technology
Crane frame is the major bearing structures on hoisting crane chassis, can place and fix other parts, and the two ends of vehicle frame are connected on the fixed supporting leg.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is a kind of representative type hoisting crane load larrying member scheme drawing, and this figure mainly illustrates vehicle frame and fixed supporting leg part; Fig. 2 be among Fig. 1 vehicle frame back segment and back fixed supporting leg be connected scheme drawing.
As shown in Figure 1; Vehicle frame comprises vehicle frame leading portion 101 and vehicle frame back segment 102, and between fixed supporting leg 200 and the back fixed supporting leg 300, vehicle frame was generally the big box type construction of thin-walled before vehicle frame back segment 102 was connected in; Separation dividing plate in the vehicle frame, the middle part of vehicle frame is provided with the revolution mounting center 1021 of car load.Fixed supporting leg also is a box type construction, and preceding fixed supporting leg 101 all has the square chest 301 that stretches out with the side of back fixed supporting leg 102, is equipped with movable supporting legs in the square chest 301, and during work, movable supporting legs can stretch out, and is supported in ground, thereby supports car load work.
During the lift heavy operation, fixed supporting leg and movable supporting legs are propped up whole vehicle frame and the derricking gear that is installed on the vehicle frame, and the weight of lifting and derricking gear deadweight act on the whole body frame structure for automotive through being installed in the bearing race of the revolution mounting center 1021 on the vehicle frame.Derricking gear usually can operation in 360 degree scopes; In the time of directly over the derricking gear arm is positioned at back fixed supporting leg 300; Back fixed supporting leg 300 stressed maximums are not only born the derricking gear of vehicle frame transmission and the gravity of lift heavy, the deadweight and the non-bearing object load of also bearing vehicle frame; The lifting structure also can be passed to back fixed supporting leg 300 with the moment of torsion that produces when rotating.Therefore; Vehicle frame back segment 102 mainly bears the friction stress of moment of torsion and vertical load generation with the junction of back fixed supporting leg 300; And; The friction stress maximum position is positioned at vehicle frame back segment 102 and the section that back fixed supporting leg 300 intersects, and shows as the incline place that back fixed supporting leg 300 and vehicle frame back segment 102 intersect among Fig. 2, stress maximum position B as shown in the figure.
Among Fig. 2; Vehicle frame back segment 102 direct inclines with back fixed supporting leg 300 weld; This incline is the incline towards the end face of vehicle frame back segment 102, and the fillet weld in the vertical position 400 of formation extends along this incline, and then fixed supporting leg 300 suffered friction stresss in back are mainly born by the fillet weld in the vertical position 400 of vehicle frame back segment 102 with fixed supporting leg 300 junctions, back; The destructiveness of this kind friction stress butt welded seam is very big, influences vehicle frame back segment 102 and back fixed supporting leg 300 bonded assembly reliability.
In addition, in view of the requirement of vehicle frame rigidity and intensity, and the restriction of hoist design specification; When vehicle frame is connected with fixed supporting leg; The upper surface of vehicle frame is concordant with the upper surface of fixed supporting leg usually, and the height of vehicle frame is greater than the fixed supporting leg height on the square chest 301, less than the whole height of fixed supporting leg.Therefore, be the boundary with the incline of fixed supporting leg, analyze bending-twisting cross section, the incline left and right sides; As shown in Figure 2, vehicle frame back segment 102 cross-sectional areas in its left side are bigger, and back fixed supporting leg 300 cross-sectional areas on right side are less (to be that back fixed supporting leg 300 cross-sectional planes on the square chest 301 are less; The lower end of back fixed supporting leg 300 is provided with the square chest 301 that supplies movable supporting legs flexible, is hollow structure, does not bear moment of torsion); So undergo mutation in the cross section, the left and right sides of incline, left side bending-twisting section modulus is big, and stress is less; Right side bending-twisting section modulus is little, and stress is bigger, and then the left and right sides unbalanced stress of incline is even; Cause the stress at incline place more concentrated, mainly concentrate on focal point of stress B ', as shown in Figure 2.Because fillet weld in the vertical position 400 just in time is arranged in the incline place, i.e. abrupt change of cross-section place, then stress is stronger to the destructiveness of fillet weld in the vertical position 400.During the operation of hoisting crane lift heavy, fillet weld in the vertical position 400 is easy to generate crackle at focal point of stress B ', along with cracks can spread, the fillet weld in the vertical position 400 of vehicle frame back segment 102 and fixed supporting leg 300 junctions, back from focal point of stress B ' to vehicle frame on the weld seam on plane ftracture fully.Therefore; Vehicle frame back segment 102 is the weakest positions with the intensity of the junction of back fixed supporting leg 300, and the means of handling at present all are around fillet weld in the vertical position 400, to do simple the reinforcement to handle basically, such as; Brace panel, diagonal bar plate etc. are installed; These modes can't fundamentally be improved the strained condition of this place's structure, and stress concentration remains the main destructive factor of junction fillet weld in the vertical position 400, and the plate that increases has increased the weight of welding capacity; Postwelding makes this place's stress concentration even more serious because the welding residual stress that welding deformation causes is intersected in focal point of stress B '.
Therefore, how to adopt more reasonable structural design and technology, controlling and improving vehicle frame and fixed supporting leg junction stress concentration is those skilled in the art's technical issues that need to address to the influence of connection reliability.
The utility model content
A purpose of the utility model provides a kind of hoisting crane load larrying member, when the vehicle frame of these load larrying member is connected with fixed supporting leg, can improve the influence of the stress concentration of junction to connection reliability.Another purpose of the utility model provides a kind of wheel crane that comprises above-mentioned hoisting crane load larrying member.
For reaching first purpose of the utility model; The utility model provides a kind of hoisting crane load larrying member; Comprise vehicle frame back segment and fixed supporting leg, the box-like body that supplies said movable supporting legs flexible is stretched out at the web place of said fixed supporting leg side, and the vehicle frame back segment web of said vehicle frame back segment is connected with said fixed supporting leg; The end of said vehicle frame back segment web extends to the side of said fixed supporting leg, and is fixedly welded on the side of said fixed supporting leg.
Preferably, the end of the web of said vehicle frame back segment is connected in the upper surface and the side plate of said box-like body, and welding is fixing.
Preferably; The web of said vehicle frame back segment comprises main body web and the welding web that is welded in said main body web; Said welding web is connected in the said upper surface and the said side plate of said box-like body, and the thickness of said welding web is greater than the thickness of said main body web.
Preferably, said welding web is provided with brace panel, and said brace panel is connected in the said upper surface and the said side plate of said box-like body.
Preferably, have through hole on the said welding web, said brace panel embeds in the said through hole, and fixing with the perisporium welding of said through hole, and the thickness of said brace panel is greater than the thickness of said welding web.
Preferably, said brace panel has centre hole, and the said upper surface of said box-like body and the abutting edge of said side plate all pass said centre hole.
Preferably, have the slit between the said upper surface of said box-like body and the abutting edge of said side plate, said centre hole is passed in said slit.
Preferably, with the thickness at said main body web bonded assembly edge, be tapered to the thickness of said main body web by the thickness of said welding web on the said welding web.
Preferably, the top board of the top board of said vehicle frame back segment and said fixed supporting leg is an one.
The hoisting crane load larrying member that the utility model provided, the end of its vehicle frame back segment web extends to the side of fixed supporting leg, and is fixedly welded on the side of said fixed supporting leg; After welding was fixing, the weld seam of formation had been avoided the stress concentration position, and the stress concentration position is positioned on the vehicle frame back segment web; Be the stress concentration position and bearing plate on every side is an integral structure, its intensity is high than the intensity of weld seam, therefore; Can reduce the influence of stress concentration; Avoid stress concentration to destroy weld seam, improve vehicle frame back segment and fixed supporting leg bonded assembly reliability, the stability when guaranteeing the operation of hoisting crane lift heavy.
In further technical scheme; The web of vehicle frame back segment comprises main body web and the welding web that is welded in the main body web; The welding web is arranged in the stress concentration position, and the thickness of welding web is promptly strengthened the thickness of stress concentration position bearing plate greater than the thickness of main body web; Improve the ability of anti-pressure anti-torsion, further guarantee vehicle frame back segment and fixed supporting leg bonded assembly reliability.
In further technical scheme, the welding web is provided with brace panel, and the thickness of brace panel is thicker than the thickness of welding web; Brace panel is arranged in the focal point of stress place, i.e. the thickest brace panel of stress maximum region layout thickness in areal of stress concentration, the method that adopts gradient to strengthen; Give full play to the performance of material; Under the prerequisite of control complete vehicle weight, improve intensity effectively, guarantee connection reliability.
In further technical scheme, brace panel is provided with centre hole, and this centre hole is positioned at the focal point of stress place, and the effectively concentrated influence of dispersive stress improves the strained condition of stress raiser structure.
In further technical scheme, have the slit between the upper surface of box-like body and the abutting edge of side plate, centre hole is passed in the slit.This slit is equivalent to stress relief grooves; Can cancel the restriction of the weld seam postwelding cooling shrinkage distortion of welding web and box-like body, promptly side plate and the upper surface owing to box-like body do not join, after the weld seam welding cooling; Allow welding web and brace panel to have the certain shrink distortion; Therefore, being provided with of slit can be avoided owing to restriction weld seam postwelding cooling shrinkage is out of shape the welding residual stress that produces, thereby improves welding reliability between welding web, brace panel and the box-like body.
For reaching another purpose of the utility model, the utility model also provides a kind of wheel crane, comprises load larrying member and position derricking gear on it, and said load larrying member are above-mentioned each described hoisting crane load larrying member.Because above-mentioned load larrying member have above-mentioned technique effect, the wheel crane with these load larrying member also has identical technique effect.
Description of drawings
Fig. 1 is a kind of representative type hoisting crane load larrying member scheme drawing, and this figure mainly illustrates vehicle frame and fixed supporting leg part;
Fig. 2 be among Fig. 1 vehicle frame back segment and back fixed supporting leg be connected scheme drawing;
Fig. 3 provides the structural representation of a kind of specific embodiment of hoisting crane load larrying member for the utility model;
Fig. 4 is the local enlarged diagram at C position among Fig. 3;
Fig. 5 is the scheme drawing of areal of stress concentration among Fig. 4.
The specific embodiment
A core of the utility model provides a kind of hoisting crane load larrying member, when the vehicle frame of these load larrying member is connected with fixed supporting leg, can improve the influence of the stress concentration of junction to connection reliability.Another core of the utility model provides a kind of wheel crane that comprises above-mentioned hoisting crane load larrying member.
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 3 and Fig. 4, Fig. 3 provides the structural representation of a kind of specific embodiment of hoisting crane load larrying member for the utility model; Fig. 4 is the local enlarged diagram at C position among Fig. 3; Fig. 5 is the scheme drawing of areal of stress concentration among Fig. 4.
The hoisting crane load larrying member that the utility model provided comprise vehicle frame, fixed supporting leg and movable supporting legs.Fixed supporting leg 20 and back fixed supporting leg 30 before fixed supporting leg comprises; Vehicle frame comprises vehicle frame leading portion 2 and vehicle frame back segment 3, and vehicle frame back segment 3 is provided with revolution mounting center 31, so in actual job; Vehicle frame back segment 3 is main supporting part; Vehicle frame back segment 3 can be the box type construction that is shaped by the sheet material welding, and fixed supporting leg 20 and back fixed supporting leg 30 before connecting are in order to the support hoisting operation of getting on the bus.The box-like body 301 that supplies movable supporting legs flexible is all stretched out at two coxostermum places of former and later two fixed supporting legs; As shown in Figure 3; The side plate 3011 of the box-like body 301 roughly web with back fixed supporting leg 30 is vertical, certainly, the orientation setting of box-like body 301 be not with vertical with web be necessary condition; Satisfy the flexible of movable supporting legs, and stably support frame gets final product.
Following content describes with the example that is connected to of back fixed supporting leg 30 and vehicle frame back segment 3 among Fig. 3; Particularly; Only the web with the two the same side is connected to example, and the opposite side structural principle is identical, in addition; Vehicle frame back segment 3 is identical with following content with the beneficial effect of preceding fixed supporting leg 20 bonded assembly structural principles and generation, does not give unnecessary details at this.
The end of vehicle frame back segment web 32 in this embodiment, the end of vehicle frame back segment web 32 extend to the side of back fixed supporting leg 30, and are fixedly welded on the side of back fixed supporting leg 30.The end of vehicle frame back segment web 32 is overlapped in the upper surface 3012 of box-like body 301 among Fig. 4, and welding is fixing, in fact, among Fig. 4 the end of vehicle frame back segment web 32 has also been served as the part web of back fixed supporting leg 30.Need to prove that in order to satisfy design regulation, the end of vehicle frame back segment web 32 in fact preferably is connected in the upper surface 3012 of box-like body 301 and towards the side plate 3011 of vehicle frame back segment 3; And welding is fixing, and as shown in Figure 4, the end of vehicle frame back segment web 32 is downward opening L shaped; Be sticked on the box-like body 301, i.e. the end of vehicle frame back segment web 32, a part is overlapped in the upper surface 3012 of box-like body 301; A part is connected to the side plate 3011 of box-like body 301, and welding is fixing.
After vehicle frame back segment web 32 was fixed with 30 welding of back fixed supporting leg, the weld seam of formation mainly comprised: vehicle frame back segment web 32 and the part of part, vehicle frame back segment web 32 and the box-like body 301 upper surfaces overlap joint of box-like body 301 side plate butts, the marginal portion that vehicle frame back segment web 32 contacts with fixed supporting leg 30 webs upper ends, back (box-like body 301 is with top).Can know by the prior art content; The stress maximum position of vehicle frame back segment 3 and fixed supporting leg 30 junctions, back is positioned at the cross-section that back fixed supporting leg 30 and vehicle frame back segment 3 intersect, especially when bearing moment of torsion; Stress mainly concentrates on this cross-section; In fact concentrate on the incline of cross-sectional plane, in Fig. 5, vehicle frame back segment web 32 and box-like body 301 side plates have crossing along the line; This is positioned at the part of box-like body more than 301 along the line and is stress concentration position H; This bending-twisting sectional area does not along both side wait, and then side plate 3011 threes' of the upper surface of vehicle frame back segment web 32, box-like body 301 and box-like body 301 crossing place is focal point of stress H ', and the stress value here is maximum.Can know that in conjunction with Fig. 4 and Fig. 5 vehicle frame back segment web 32 extends on the box-like body 301 in this embodiment, can make weld seam avoid the intersection of vehicle frame back segment 32 and back fixed supporting leg 30; Be stress concentration position H, and stress concentration position H be positioned on the vehicle frame back segment web 32 that promptly the bearing plate at stress concentration position H place is an integral structure with bearing plate on every side; Its intensity is high than the intensity of weld seam; Therefore, can reduce the influence of stress concentration, avoid stress concentration to destroy weld seam; Improve vehicle frame back segment 3 and back fixed supporting leg 30 bonded assembly reliability, the stability when guaranteeing the operation of hoisting crane lift heavy.
Further; Can vehicle frame back segment web 32 be taked split-type structural; As shown in Figure 4; Vehicle frame back segment web 32 comprise main body web 321 be welded on the main body web 321 welding web 322, be connected in the upper surface 3012 and side plate 3011 of box-like body 301 by welding web 322, and the thickness of welding web 322 is greater than the thickness of main body web 321.Can know according to the foregoing analysis; Vehicle frame back segment 3 is positioned at the section that the two intersects with the stress concentration position H of fixed supporting leg 30 junctions, back; And maximum stress centrostigma H ' is the side plate 3011 of vehicle frame back segment web 32, box-like body 301 and the junction point of upper surface 3012; Increase this focal point of stress H ' bearing plate thickness on every side; Promptly can improve antitorque further and pressure-proof intensity, thus should be in further technical scheme, and welding web 322 thickness of employing are greater than the thickness of main body web 321.The concrete size of welding web 322 should be a departure point with control of balance complete vehicle weight and strength demand, designs; Welding web 322 shown in Fig. 4 is positioned at the end of web 32; Covered stress maximum position H, with respect to main body web 321, its area is less.Main body web 321 can dock back integrally welded with welding web 322; As shown in Figure 4; Main body web 321 has the L shaped breach that opening makes progress, and welding web 322 butts up against in this L shaped breach and welding is fixed, and the butt joint welding can increase the area of welding; Improve welding reliability, keep the bulk strength of vehicle frame back segment web 32.Certainly, also can take other conventional modes to realize increasing web 32 end portion thickness.
Vehicle frame back segment web 32 for above-mentioned split setting; Can make the thickness at the edge that docks with main body web 321 on the welding web 322; Thickness by welding web 322 is tapered to the thickness of main body web 321, promptly welds the edge that dock with main body web 321 on the web 322 and demonstrates certain gradient, adopts long groove to delay the docking technique of transition; When avoiding thin main body web 321 to dock with thicker welding web 322; At the joint stress concentration certain owing to the abrupt change of cross-section causes, improve welding web 322 and main body web 321 welding reliability, further guarantee the whole strong degree of vehicle frame back segment web 32.
On the welding web 322 brace panel 3221 can also be set further, brace panel 3221 is connected in the upper surface 3012 and side plate 3011 of box-like body 301, promptly further thickeies the bearing plate thickness that focal point of stress H ' locates.Can process through hole on the web 322 in welding, brace panel 3221 embeds in the through holes, and dock the back welding with the perisporium of through hole fixing, and the thickness of brace panel 3221 is greater than the thickness that welds web 322.Brace panel 3221 shown in Fig. 4 is for having the circle of breach, and the brace panel 3221 of this structure is easier to processing, be convenient to and the docking of through hole perisporium, and stressed evenly.
In fact, the welding web 322 and brace panel 3221 of thickening successively being set, is to distribute according to stress gradient; The method that has adopted gradient to strengthen can be known by foregoing, is the center with focal point of stress H '; Stress to around reduce gradually, therefore, correspondingly; Make focal point of stress H ' all around the thickness of bearing plate also become gradient descending; As shown in Figure 5, be provided with in stress maximum region (focal point of stress H ' locates) that the thickest brace panel 3221, the periphery of brace panel 3221 (covering stress concentration position H) are provided with the welding web 322 that thickness takes second place, the left side of welding web 322 connects thickness final thin main body web 321 again, this kind set-up mode can be brought into play material property to greatest extent; When guaranteeing vehicle frame back segment 3 with back fixed supporting leg 30 weld strengths; Reduce the weight of car load, during especially to hoister in large tonnage, the structure that this kind thickness is provided with in gradient has more advantage as far as possible.
In addition, can also on brace panel 3221, process centre hole O, the upper surface 3012 of box-like body 301 all passes this centre hole O with the edge that side plate 3011 forms butt joint.In conjunction with Fig. 3 and Fig. 4; Because focal point of stress H ' is the side plate 3011 of vehicle frame back segment web 32, box-like body 301 and the junction point of upper surface 3012, centre hole O is set in this embodiment after, the junction point is expanded as centre hole O; Can stress be dispersed on the circular arc perisporium of centre hole O; Rather than converge, thereby the effectively dispersive stress influence of concentrating improves the strained condition of stress raiser structure.
Further; Can make between the edge of upper surface 3012 and side plate 3011 butt joints of box-like body 301 and have certain slit D; Be that upper surface 3012 does not join with side plate 3011, but reserve certain slit D, and make this slit D pass the centre hole O on the brace panel 3221.Box-like body 301 upper surfaces 3012 are non-main force part with the edge that side plate 3011 joins; Reserve slit D herein, this slit D is equivalent to stress relief grooves, can cancel the restriction of the weld seam postwelding cooling shrinkage distortion of welding web 322 and box-like body 301; Promptly the side plate 3011 owing to box-like body 301 does not join with upper surface 3012; After the weld seam welding cooling, allow welding web 322 and brace panel 3221 to have the certain shrink distortion, therefore; Being provided with of slit D can be avoided owing to restriction weld seam postwelding cooling shrinkage is out of shape the welding residual stress that produces, thereby improves welding reliability between welding web 322, brace panel 3221 and the box-like body 301.Certainly, the design of the size dimension of this slit D should be a prerequisite with the load-carrying properties that do not influence welding web 322, brace panel 3221.
In addition, the top board of the vehicle frame back segment 3 shown in Fig. 3 is fixing with the top board welding of back fixed supporting leg 30, and in fact, also can make the two is integral structure, improves the connection fiduciary level of the two.
The utility model also provides a kind of wheel crane, comprises load larrying member and position derricking gear on it, and said load larrying member are the described hoisting crane load larrying member of above-mentioned arbitrary embodiment.Because above-mentioned hoisting crane load larrying member have above-mentioned technique effect, the wheel crane with these load larrying member also has identical technique effect, does not give unnecessary details at this.
More than a kind of wheel crane and load larrying member thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. hoisting crane load larrying member; Comprise vehicle frame back segment (3) and fixed supporting leg; The box-like body (301) that supplies said movable supporting legs flexible is stretched out in said fixed supporting leg side, and the vehicle frame back segment web (32) of said vehicle frame back segment (3) is connected with said fixed supporting leg, it is characterized in that; The end of said vehicle frame back segment web (32) extends to the side of said fixed supporting leg, and is fixedly welded on the side of said fixed supporting leg.
2. hoisting crane load larrying member according to claim 1 is characterized in that, the end of said vehicle frame back segment web (32) is connected in the upper surface (3012) and the side plate (3011) of said box-like body (301), and welding is fixing.
3. hoisting crane load larrying member according to claim 2; It is characterized in that; Said vehicle frame back segment web (32) comprises main body web (321) and is welded in the welding web (322) of said main body web (321); Said welding web (322) is connected in the said upper surface (3012) and the said side plate (3011) of said box-like body (301), and the thickness of said welding web (322) is greater than the thickness of said main body web (321).
4. hoisting crane load larrying member according to claim 3 is characterized in that, said welding web (322) is provided with brace panel (3221), and said brace panel (3221) is connected in the said upper surface (3012) and the said side plate (3011) of said box-like body (301).
5. hoisting crane load larrying member according to claim 4; It is characterized in that; Has through hole on the said welding web (322); Said brace panel (3221) embeds in the said through hole, and fixing with the perisporium welding of said through hole, and the thickness of said brace panel (3221) is greater than the thickness of said welding web (322).
6. hoisting crane load larrying member according to claim 5 is characterized in that, said brace panel (3221) has centre hole (O), and the said upper surface (3012) of said box-like body (301) and the abutting edge of said side plate (3011) all pass said centre hole (O).
7. hoisting crane load larrying member according to claim 6 is characterized in that, have slit (D) between the said upper surface (3012) of said box-like body (301) and the abutting edge of said side plate (3011), and said slit (D) passes said centre hole (O).
8. hoisting crane load larrying member according to claim 7 is characterized in that, said welding web (322) is gone up the thickness with said main body web (321) bonded assembly edge, are tapered to the thickness of said main body web (321) by the thickness of said welding web (322).
9. hoisting crane load larrying member according to claim 8 is characterized in that, the top board of said vehicle frame back segment (3) and the top board of said fixed supporting leg are one.
10. a wheel crane comprises load larrying member and position derricking gear on it, it is characterized in that said load larrying member are each described hoisting crane load larrying member of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120202217U CN202148152U (en) | 2011-06-15 | 2011-06-15 | Wheel crane and bearing structure of wheel crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120202217U CN202148152U (en) | 2011-06-15 | 2011-06-15 | Wheel crane and bearing structure of wheel crane |
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| CN202148152U true CN202148152U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120202217U Expired - Lifetime CN202148152U (en) | 2011-06-15 | 2011-06-15 | Wheel crane and bearing structure of wheel crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310845A (en) * | 2011-06-15 | 2012-01-11 | 徐州重型机械有限公司 | Wheel crane and bearing structure thereof |
-
2011
- 2011-06-15 CN CN201120202217U patent/CN202148152U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310845A (en) * | 2011-06-15 | 2012-01-11 | 徐州重型机械有限公司 | Wheel crane and bearing structure thereof |
| CN102310845B (en) * | 2011-06-15 | 2013-09-04 | 徐州重型机械有限公司 | Wheel crane and bearing structure thereof |
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