CN203079597U - Hinge fixed support leg and crane provided with same - Google Patents
Hinge fixed support leg and crane provided with same Download PDFInfo
- Publication number
- CN203079597U CN203079597U CN 201320052253 CN201320052253U CN203079597U CN 203079597 U CN203079597 U CN 203079597U CN 201320052253 CN201320052253 CN 201320052253 CN 201320052253 U CN201320052253 U CN 201320052253U CN 203079597 U CN203079597 U CN 203079597U
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- supporting leg
- fixed supporting
- hinged
- securement
- hinged securement
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Abstract
The utility model discloses a hinge fixed support leg which comprises a fixed support leg and a hinge device arranged on the fixed support leg, wherein the hinge device comprises hinge bases which are arranged in a left-right symmetric manner, each hinge base comprises a first member connected to the top of the fixed support leg, a second member connected to the bottom of the fixed support leg, and a third member for connecting the first member with the second member up and down, and hinge holes are respectively formed in the upper end and the lower end of the third member. According to the hinge fixed support leg, the stress concentration, and the welding bead stress and deformation caused by the hinge can be effectively reduced, and thus the reliability of the fixed support leg is remarkably improved. The utility model also discloses a crane provided with the hinge fixed support leg.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly the hinged securement supporting leg of hoisting crane.The utility model also relates to the hoisting crane that is provided with described supporting leg.
Background technology
Wheel crane is the important component part of hoisting crane, owing to having good off-road capability and being with the advantage of carrying the operation of travelling to be widely used.
Load-carrying ability and working stability when increasing Wheel Crane's Weight Lifting Operation must be provided with a leg mechanism, regain during leg mechanism driving, overhanging support during work, whole hoisting crane can be erected, and the various loading transfer that vehicle frame is born are to ground.
Propping up leg mechanism mainly is made up of fixed supporting leg and movable supporting legs, wherein fixed supporting leg is a kind of parts that are welded into box type construction by sheet material, be used to connect movable supporting legs and vehicle frame, movable supporting legs also is a kind of parts that are welded into box type construction by sheet material, under the effect of driver train, can be flexible back and forth in fixed supporting leg, be used to support heavy-duty machine.
Along with the increase of wheel crane tonnage, complete vehicle weight exceeds the limit that tire can reach, and causes the band of wheel crane to carry driveability and fails to satisfy requirements.
Please refer to Fig. 1, Fig. 2, Fig. 1 is the structural representation of the split type vehicle frame of existing wheel crane; Fig. 2 is the exploded drawings of split type vehicle frame shown in Figure 1.
The large-tonnage wheel crane uses split type vehicle frame, and when band carried driving cycle, preceding fixed supporting leg 1 ＇ of vehicle frame leading portion and back fixed supporting leg 2 ＇ of back segment separated with main body of vehicle frame 3 ＇, improves load capacity; During normal lift heavy operating mode, the fixed supporting leg of section combines with main body of vehicle frame 3 ＇ before and after the vehicle frame, and is identical with traditional vehicle frame.
Please refer to Fig. 3, Fig. 4, Fig. 5, Fig. 3 is the structural representation of the embedded fixed supporting leg of veneer; Fig. 4 is the welding scheme drawing of the embedded fixed supporting leg of Fig. 3 veneer; Fig. 5 is the hinged scheme drawing of the embedded fixed supporting leg of veneer.
The fixed supporting leg of section connects by the pivotally attached form with main body of vehicle frame before and after the vehicle frame, and the reliability of fixed supporting leg articulated mounting will determine the bulk life time of hoisting crane.
Existing fixed supporting leg adopts the embedded articulated structure of veneer mostly, and later fixed supporting leg 2 ＇ are example, and hinged otic placode 4 ＇ and back fixed supporting leg 2 ＇ link by the mode of welding according to the hinge hole position, and there is following shortcoming in this kind structure:
At first, main body of vehicle frame and fixed supporting leg articulated structure link by the hinged otic placode of four positions, all Stress Transfer of articulated mounting are all passed through hinged otic placode 4 ＇ everywhere, dashed region is a focal point of stress, and the hinged securement supporting leg is stressed to belong to cantilever position (as shown in Figure 6) for the hinge-point position, stress is too concentrated, causes damage easily, and reliability is low.
Secondly, hinged otic placode 4 ＇ in the embedded articulated structure of veneer bear all stress with the attachment weld of back fixed supporting leg 2 ＇, and the weld seam influence factor is more, and is wayward, and the stress form is fatigue stress, and welding bead very easily produces damage herein, and reliability is low.
Moreover, when back fixed supporting leg 2 ＇ integral body are born tersional stress,, cause the bulk deformation amount excessive because articulated mounting distribution of stress scope is less, as shown in Figure 7, dashed region is the distortion maximum position.
Therefore, how to improve fixed supporting leg because of the hinged stress concentration that causes, welding bead is stressed and be out of shape phenomenons such as excessive, thereby improve its reliability, be the present technical issues that need to address of those skilled in the art.
The utility model content
First purpose of the present utility model provides a kind of hinged securement supporting leg.This fixed supporting leg can effectively reduce because of the hinged stress concentration that causes, welding bead is stressed and deflection, thereby significantly improves the reliability of fixed supporting leg.
Second purpose of the present utility model provides a kind of hoisting crane that is provided with described hinged securement supporting leg.
In order to realize above-mentioned first purpose, the utility model provides a kind of hinged securement supporting leg, comprise fixed supporting leg and articulated mounting provided thereon, described articulated mounting comprises the hinged seat that is symmetrically arranged, each described hinged seat includes first member that is connected in described fixed supporting leg top, second member that is connected in described fixed supporting leg bottom and the 3rd member that connects described first member and second member up and down, and the top and bottom of described the 3rd member are respectively equipped with hinge hole.
Preferably, described first member is connected in the web upper edge of described fixed supporting leg, and described second member is connected in the web lower edge of described fixed supporting leg.
Preferably, described first member embeds in the groove of described web upper edge, and described second member embeds in the groove of described web lower edge.
Preferably, described first member and second member extend from a side direction opposite side on perpendicular to the direction of described fixed supporting leg, and are connected with a plurality of webs of described fixed supporting leg.
Preferably, described hinged seat is side direction and revolves " U " shape structure that turn 90 degrees.
Preferably, described hinged seat comprises " U " shape plate that twice are parallel and is positioned between described " U " shape plate and with its connecting panel that is connected as a single entity.
Preferably, the width at described " U " shape plate hinge hole position and thickness are greater than other positions.
Preferably, be provided with the cross-tie beam between the 3rd member of described left and right hinged seat.
Preferably, be provided with local reinforcement between described hinged seat and the fixed supporting leg.
Preferably, described fixed supporting leg is provided with the built-in dividing plate that forms the multi-box type structure in the inside of its diagonal ligament part.
Preferably, described fixed supporting leg is provided with built-in pipe passage.
For realizing above-mentioned second purpose, the utility model also provides a kind of hoisting crane, comprises vehicle frame and the fixed supporting leg that is articulated and connected with described vehicle frame, and described fixed supporting leg is above-mentioned each described hinged securement supporting leg.
Preferably, be specially rough terrain wheeled crane.
Hinged securement supporting leg provided by the utility model has been done further improvement on the basis of existing technology, its articulated mounting has and fixed supporting leg top bonded assembly first member, with fixed supporting leg bottom bonded assembly second member and be connected first member and the 3rd member of second member, wherein first member can be from the top braces fixed supporting leg, second member can be from the bottom support fixed supporting leg, the 3rd member is support fixation supporting leg and articulated position is provided from the side, by described first, second, the 3rd member, articulated mounting has realized that three with fixed supporting leg dock, articulated mounting can directly act on the main stress parts of fixed supporting leg when stressed, mode by the dispersion of stress multiple spot, phenomenons such as stress concentration and local deflection be excessive have effectively been improved, parts and stressed welding bead quantity in the stress transfer process have been reduced, significantly increase the bulk strength of fixed supporting leg, and can effectively reduce the overall weight of fixed supporting leg.
In a kind of specific embodiment, described first member embeds in the groove of described web upper edge, and described second member embeds in the groove of described web lower edge.Hinged seat is embedded in the groove of web, it can be built in fixed supporting leg, dock up and down with the web of fixed supporting leg simultaneously, make hinged seat can directly act on the web of fixed supporting leg, evaded the defective that welding bead meets with stresses, not only compact conformation, reliability height, and also weight is lighter relatively.
In the another kind of specific embodiment, be provided with local reinforcement between described hinged seat and the fixed supporting leg.According to each point distribution of stress situation, between hinged seat and fixed supporting leg, increase stress distribution device and carry out the part reinforcement, it is concentrated to eliminate stress, and improves state of stress, further improves reliability.
Hoisting crane provided by the utility model is provided with above-mentioned hinged securement supporting leg, because above-mentioned hinged securement supporting leg has above-mentioned technique effect, the hoisting crane that is provided with this hinged securement supporting leg also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of the split type vehicle frame of existing wheel crane;
Fig. 2 is the exploded drawings of split type vehicle frame shown in Figure 1;
Fig. 3 is the structural representation of the embedded fixed supporting leg of veneer;
Fig. 4 is the welding scheme drawing of the embedded fixed supporting leg of Fig. 3 veneer;
Fig. 5 is the welding scheme drawing of the embedded fixed supporting leg of veneer;
Fig. 6 is the cantilever position scheme drawing of the embedded fixed supporting leg of veneer shown in Figure 4;
Fig. 7 is the tersional stress scheme drawing of the embedded fixed supporting leg of veneer shown in Figure 4;
Fig. 8 provides the decomposition texture scheme drawing of a kind of specific embodiment of hinged securement supporting leg for the utility model;
Fig. 9 is the birds-eye view of hinged securement supporting leg shown in Figure 8 after removing cover plate;
Figure 10 is the partial enlarged drawing at A position among Fig. 9;
Figure 11 is the partial enlarged drawing at B position among Fig. 9;
Figure 12 is the partial enlarged drawing at C position among Fig. 9;
Figure 13 is the bottom construction scheme drawing of hinged securement supporting leg shown in Figure 8;
Figure 14 is the partial enlarged drawing at D position among Figure 13;
Figure 15 is the partial enlarged drawing at E position among Figure 13;
Figure 16 forms the scheme drawing of many box type constructions for the inside of hinged securement supporting leg shown in Figure 8;
Figure 17 is provided with the scheme drawing of built-in pipe passage for the inside of hinged securement supporting leg shown in Figure 8.
Among Fig. 1 to Fig. 7:
Hinged otic placode 4 ＇ of fixed supporting leg 2 ＇ main body of vehicle frame 3 ＇ behind preceding fixed supporting leg 1 ＇
Among Fig. 8 to Figure 17:
1. the fixed supporting leg 1-1. first web 1-2. second web 1-3. the 3rd web 2. hinged seat 2-1. upper arm 2-2. underarm 2-3. principal arm 2-3-1. hinge holes 3. grooves 4. cover plates 5. base plates 6. cross-tie beams 7. diagonal ligament 8-1. first dividing plate 8-2. second partition 8-3. the 3rd dividing plate 9. built-in pipe passages
The specific embodiment
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The term in expression orientation such as herein " upper and lower, left and right " is based on the position relation of accompanying drawing, it should be interpreted as the absolute qualification to protection domain.
Please refer to Fig. 8, Fig. 8 provides the decomposition texture scheme drawing of a kind of specific embodiment of hinged securement supporting leg for the utility model.
In a kind of specific embodiment, the hinged securement supporting leg that the utility model provides is mainly by fixed supporting leg 1 and the last component set-ups such as articulated mounting that are provided with thereof.
Articulated mounting comprises two hinged seats 2 that are symmetrically arranged, each hinged seat 2 is side direction and revolves " U " shape structure that turn 90 degrees, its main body is parallel " U " shape plates of twice, be connected as a single entity by the multiple tracks connecting panel between " U " shape plate, its first member is upper arm 2-1, second member is underarm 2-2, and the 3rd member is for connecting the principal arm 2-3 of upper arm 2-1 and underarm 2-2, and upper arm 2-1, underarm 2-2 and principal arm 2-3 are integral structure.
The top and bottom of principal arm 2-3 are respectively equipped with hinge hole 2-3-1, and the width at hinge hole position is greater than other positions, and are provided with the brace panel that thickens, to satisfy hinged required structural strength.
Fixed supporting leg 1 offers square groove 3 in the upper edge of its first web 1-1 and the second web 1-2, the upper arm 2-1 of hinged seat 2 embeds in the square groove 3 of web upper edge, extend to the inboard of the 3rd road web 1-3 on perpendicular to the direction of web from the first web 1-1 always, directly be connected with the second web 1-2 with the first web 1-1 of fixed supporting leg 1, after installing cover plate 4 additional, upper arm 2-1 can be hidden in fixed supporting leg 1 inside.
Fixed supporting leg 1 also offers square groove 3 in the lower edge of its first web 1-1 and the second web 1-2, and the height of square groove 3 is higher than base plate 5, the underarm 2-2 of hinged seat 2 embeds in the square groove 3 of web lower edge, extend to the inboard of the 3rd web 1-3 on perpendicular to the direction of web from the first web 1-1 always, directly be connected with the second web 1-2 and base plate 5 with the first web 1-1 of fixed supporting leg 1, after assembling is finished, underarm 2-2 will expose to fixed supporting leg 1.
Please refer to Fig. 9 to Figure 15, Figure 12, Fig. 9 is the birds-eye view of hinged securement supporting leg shown in Figure 8 after removing cover plate; Figure 10 is the partial enlarged drawing at A position among Fig. 9; Figure 11 is the partial enlarged drawing at B position among Fig. 9; Figure 12 is the partial enlarged drawing at C position among Fig. 9; Figure 13 is the bottom construction scheme drawing of hinged securement supporting leg shown in Figure 8; Figure 14 is the partial enlarged drawing at D position among Figure 13; Figure 15 is the partial enlarged drawing at E position among Figure 13.
In further improved structure, be provided with the parallel cross-tie beam 6 of twice between the principal arm 2-3 of left and right hinged seat, and increase diagonal ligament 7 around the hinged seat, the overlapping part of mild transition hinged seat 2 and fixed supporting leg 1, improving fixed supporting leg 1 integrated stress distributes, avoid the hinged seat 2 and the transition of stress of fixed supporting leg 1 contact surface to concentrate, thereby improve the reliability of fixed supporting leg 1.
Please refer to Figure 16, Figure 16 forms the scheme drawing of many box type constructions for the inside of hinged securement supporting leg shown in Figure 8.
In the improved structure of another kind, fixed supporting leg 1 is provided with the first dividing plate 8-1, second partition 8-2 and the 3rd dividing plate 8-3 in the inside of its oblique part, wherein, the first dividing plate 8-1 and the 3rd dividing plate 8-3 are vertical dividing plate, and second partition 8-2 is " worker " font horizontal baffle.
The upper arm 2-1 of hinged seat 2 and the fixed supporting leg first web 1-1, the second web 1-2 and second partition 8-2 weld together, during assembling, earlier with hinged seat 2 and web and dividing plate welding, again the agent structure of cover plate 4 with fixed supporting leg 1 is connected, makes a plurality of small-sized box-structures of fixed supporting leg 1 inner formation.So, hoisting crane is under different operating modes, and fixed supporting leg 1 can both whole bearing load, thereby reduces the phenomenon of left and right sides supporting leg distribution of stress inequality, and it is concentrated to eliminate stress.
Please refer to Figure 17, Figure 17 is provided with the scheme drawing of built-in pipe passage for the inside of hinged securement supporting leg shown in Figure 8.
For adapting to the support oil cylinder piping layout, can be at the built-in pipe passage 9 of fixed supporting leg 1 indoor design, long and short dash line is depicted as the pipeline route among the figure, adopt built-in pipe passage 9, can optimize pipeline arranges, make all pipeline trends be in fixed supporting leg 1 inside fully, avoid pipeline to be subjected to external force to collide and damage, improve the hoisting crane type quality.
The upper arm 2-1 of above-mentioned hinged seat 2 can be from top braces fixed supporting leg 1, underarm 2-2 can be from bottom support fixed supporting leg 1, principal arm 2-3 is support fixation supporting leg 1 and articulated position is provided from the side, by upper arm 2-1, underarm 2-2 and principal arm 2-3, hinged seat 2 has realized that three with fixed supporting leg 1 dock, and hinged seat 2 can directly act on the web and the dividing plate of fixed supporting leg 1 when stressed.
The mode that this stress multiple spot disperses, phenomenons such as stress concentration and local deflection be excessive have effectively been improved, reduce parts and stressed welding bead quantity in the stress transfer process, significantly increased the bulk strength of fixed supporting leg 1, and can effectively reduce the overall weight of fixed supporting leg 1.
Certainly, above-mentioned hinged securement supporting leg only is a kind of preferred version, specifically is not limited thereto, and can make pointed adjustment according to actual needs on this basis, thereby obtains different embodiments.For example, hinged seat 2 is designed to the shape that other are similar to " U " shape, perhaps the upper arm 2-1 with hinged seat 2 is fixed on cover plate 4 tops, or the upper arm 2-1 and the underarm 2-1 of hinged seat 2 embedded fixed supporting leg 1 inside or the like.Because mode in the cards is more, casehistory no longer one by one just here.
Except above-mentioned hinged securement supporting leg, the utility model also provides a kind of hoisting crane, comprise vehicle frame and the fixed supporting leg that is articulated and connected with described vehicle frame, described fixed supporting leg is a hinged securement supporting leg mentioned above, the hinged seat on the vehicle frame and the hinged seat of fixed supporting leg are hinged by bearing pin, all the other structures please refer to prior art, and this paper repeats no more.
Particularly, described hoisting crane is a rough terrain wheeled crane.
More than hinged securement supporting leg provided by the utility model and hoisting crane are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present 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 (13)
1. hinged securement supporting leg, comprise fixed supporting leg and articulated mounting provided thereon, it is characterized in that, described articulated mounting comprises the hinged seat that is symmetrically arranged, each described hinged seat includes first member that is connected in described fixed supporting leg top, second member that is connected in described fixed supporting leg bottom and the 3rd member that connects described first member and second member up and down, and the top and bottom of described the 3rd member are respectively equipped with hinge hole.
2. hinged securement supporting leg according to claim 1 is characterized in that, described first member is connected in the web upper edge of described fixed supporting leg, and described second member is connected in the web lower edge of described fixed supporting leg.
3. hinged securement supporting leg according to claim 2 is characterized in that, described first member embeds in the groove of described web upper edge, and described second member embeds in the groove of described web lower edge.
4. hinged securement supporting leg according to claim 3 is characterized in that, described first member and second member extend from a side direction opposite side on perpendicular to the direction of described fixed supporting leg, and are connected with a plurality of webs of described fixed supporting leg.
5. hinged securement supporting leg according to claim 4 is characterized in that, described hinged seat is side direction and revolves " U " shape structure that turn 90 degrees.
6. hinged securement supporting leg according to claim 5 is characterized in that, described hinged seat comprises " U " shape plate that twice are parallel and is positioned between described " U " shape plate and with its connecting panel that is connected as a single entity.
7. hinged securement supporting leg according to claim 6 is characterized in that, the width at described " U " shape plate hinge hole position and thickness are greater than other positions.
8. according to each described hinged securement supporting leg of claim 1 to 7, it is characterized in that, be provided with the cross-tie beam between the 3rd member of described left and right hinged seat.
9. according to each described hinged securement supporting leg of claim 1 to 7, it is characterized in that, be provided with local reinforcement between described hinged seat and the fixed supporting leg.
10. according to each described hinged securement supporting leg of claim 1 to 7, it is characterized in that described fixed supporting leg is provided with the built-in dividing plate that forms the multi-box type structure in the inside of its diagonal ligament part.
11., it is characterized in that described fixed supporting leg is provided with built-in pipe passage according to each described hinged securement supporting leg of claim 1 to 7.
12. a hoisting crane comprises vehicle frame and the fixed supporting leg that is articulated and connected with described vehicle frame, it is characterized in that, described fixed supporting leg is aforesaid right requirement 1 to 11 each described hinged securement supporting leg.
13. hoisting crane according to claim 12 is characterized in that, is specially rough terrain wheeled crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052253 CN203079597U (en) | 2013-01-30 | 2013-01-30 | Hinge fixed support leg and crane provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052253 CN203079597U (en) | 2013-01-30 | 2013-01-30 | Hinge fixed support leg and crane provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203079597U true CN203079597U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320052253 Withdrawn - After Issue CN203079597U (en) | 2013-01-30 | 2013-01-30 | Hinge fixed support leg and crane provided with same |
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| Country | Link |
|---|---|
| CN (1) | CN203079597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058079A (en) * | 2013-01-30 | 2013-04-24 | 徐州重型机械有限公司 | Hinge-fixed support leg and crane with same |
-
2013
- 2013-01-30 CN CN 201320052253 patent/CN203079597U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058079A (en) * | 2013-01-30 | 2013-04-24 | 徐州重型机械有限公司 | Hinge-fixed support leg and crane with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20140813 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20140813 |
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| RGAV | Abandon patent right to avoid regrant |