CN102717780A - Support leg backing plate - Google Patents
Support leg backing plate Download PDFInfo
- Publication number
- CN102717780A CN102717780A CN2012102319826A CN201210231982A CN102717780A CN 102717780 A CN102717780 A CN 102717780A CN 2012102319826 A CN2012102319826 A CN 2012102319826A CN 201210231982 A CN201210231982 A CN 201210231982A CN 102717780 A CN102717780 A CN 102717780A
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- backing plate
- supporting leg
- connecting panel
- plate body
- frame
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- 230000007935 neutral effect Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 206010033307 Overweight Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The invention provides a support leg base plate. The leg support comprises a support body (10), wherein the support body (10) comprises a hollow structure located on a neutral layer. According to the support leg base plate, the weight of the support leg base plate can be reduced under the condition that the supporting strength of the support leg base plate is not changed, and the labor intensity is reduced.
Description
Technical field
The present invention relates to engineering machinery field, in particular to a kind of supporting leg backing plate.
Background technology
Along with the development of heavy-duty machinery, when heavy-duty machinery is worked, often require ground bigger supporting power to be provided in the face of supporting leg, could guarantee the operation of the normal safety of heavy-duty machinery.In order to satisfy above-mentioned requirements, the heavy-duty machinery supporting leg generally is provided with supplemental support mechanism, generally is between supporting leg and ground, backing plate to be set, and supporting leg applies application force through backing plate to ground.Backing plate has bigger Area of bearing, can the application force that supporting leg applies ground be disperseed, thereby reduces ground pressure, avoids ground (especially at non-hardened ground, like the earth face) overload and sink, and causes heavy-duty machinery to work or causes safety misadventure.Under travelling position or other states, can backing plate be placed in place, so that delivery.Along with heavy engineering machinery constantly to the development of high weight class, the specification of supporting leg pad strengthens along with the growth of the tonnage of heavy engineering machinery and discharge capacity, its quality also increases greatly.
The present pump truck of overlength jib for example, the supporting leg backing plate of conventional size fails to satisfy requirements, and newly-designed supporting leg backing plate quality increases greatly.The supporting leg backing plate that pump truck is used adopts the mode of a dead lift to be transported to control position usually, and every supporting leg backing plate need take off from pump truck, transports several meters to tens meters far away then; Quality is big more; A dead lift intensity is high more, and when quality acquires a certain degree, the difficulty of carrying is very big; Even can't carry, that gives the supporting leg backing plate mobilely brings very big inconvenience.
Summary of the invention
The present invention aims to provide a kind of supporting leg backing plate, can under the situation that does not change supporting leg backing plate support strength, alleviate supporting leg backing plate quality, reduces labour intensity.
To achieve these goals, according to an aspect of the present invention, a kind of supporting leg backing plate is provided, has comprised the backing plate body, the backing plate body comprises the hollow structure that is positioned on the neutral line.
Further, the backing plate body comprises the frame that is arranged on periphery and is positioned at frame and is connected the connecting panel on the frame, and hollow structure is the osed top chamber that adjacent connecting panel and frame surround.
Further; The backing plate body comprises the frame that is arranged on periphery and is positioned at frame and is connected the connecting panel on the frame; Hollow structure is the chamber that adjacent connecting panel and frame surround, and the position that is positioned at neutral line at least one connecting panel offers the through hole that extends along the neutral line plane.
Further, the neutral line position of each sidewall of each chamber all offers through hole.
Further, hollow structure comprises and is positioned on the neutral line plane closed chamber that upper surface and/or lower surface to the backing plate body extend.
Further, the backing plate body also comprises the shrouding of the both sides up and down that are fixedly connected on connecting panel, and shrouding and frame surround the closed region, and connecting panel is positioned at the closed region.
Further, the backing plate body also comprises the upside that is fixedly connected on connecting panel or the shrouding of downside.
Further, connecting panel is the straight plate that a plurality of square crossings are provided with.
Further, connecting panel comprise arc and with arc straight plate arranged in a crossed manner.
Further, the backing plate body is cylinder, square column or frustum.
Further, be filled with the weighting material of density in the hollow structure less than the backing plate body.
Use technical scheme of the present invention, the supporting leg backing plate comprises the backing plate body, and the backing plate body comprises the hollow structure that is positioned on the neutral line.Through on the neutral line of backing plate body, hollow structure being set; Can be under the condition of the pressure load-carrying capacity that does not influence the supporting leg backing plate; The quality that alleviates the supporting leg backing plate as much as possible effectively alleviates staff's labour intensity, increases the ease for use of supporting leg backing plate; Save material, reduced cost.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation according to the supporting leg backing plate of the first embodiment of the present invention;
Fig. 2 shows the structural representation of looking up according to the supporting leg backing plate of the embodiment of Fig. 1;
Fig. 3 shows the sectional structure scheme drawing according to the supporting leg backing plate A-A place of the embodiment of Fig. 1;
Fig. 4 shows the sectional structure scheme drawing according to the supporting leg backing plate B-B place of the embodiment of Fig. 1;
Fig. 5 shows the structural representation of supporting leg backing plate according to a second embodiment of the present invention;
Fig. 6 shows the structural representation of looking up according to the supporting leg backing plate of the embodiment of Fig. 5;
Fig. 7 shows the sectional structure scheme drawing according to the supporting leg backing plate A-A place of the embodiment of Fig. 5;
Fig. 8 shows the sectional structure scheme drawing according to the supporting leg backing plate B-B place of the embodiment of Fig. 5;
Fig. 9 shows the structural representation of the supporting leg backing plate of a third embodiment in accordance with the invention;
Figure 10 shows the plan structure scheme drawing according to the supporting leg backing plate of the embodiment of Fig. 9;
Figure 11 shows the sectional structure scheme drawing according to the supporting leg backing plate A-A place of the embodiment of Fig. 9;
Figure 12 shows the sectional structure scheme drawing according to the supporting leg backing plate B-B place of the embodiment of Fig. 9;
Figure 13 shows the structural representation of the supporting leg backing plate of a fourth embodiment in accordance with the invention;
Figure 14 shows the plan structure scheme drawing according to the supporting leg backing plate of the embodiment of Figure 13;
Figure 15 shows the sectional structure scheme drawing according to the supporting leg backing plate A-A place of the embodiment of Figure 13;
Figure 16 shows the sectional structure scheme drawing according to the supporting leg backing plate B-B place of the embodiment of Figure 13;
Figure 17 shows the structural representation of supporting leg backing plate according to a fifth embodiment of the invention;
Figure 18 shows the plan structure scheme drawing according to the supporting leg backing plate of the embodiment of Figure 17;
Figure 19 shows the sectional structure scheme drawing according to the supporting leg backing plate A-A place of the embodiment of Figure 17;
Figure 20 shows the sectional structure scheme drawing according to the supporting leg backing plate B-B place of the embodiment of Figure 17;
Figure 21 shows the force structure scheme drawing of supporting leg backing plate; And
Figure 22 shows the force analysis schematic diagram according to the supporting leg backing plate of Figure 21.
The specific embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
To shown in Figure 4, according to the first embodiment of the present invention, the supporting leg backing plate comprises at least one handle 15 on backing plate body 10 and the sidewall that is fixedly connected on backing plate body 10, includes the hollow structure that is positioned on the neutral line in the backing plate body 10 like Fig. 1.
Backing plate body 10 comprises frame 12 that is arranged on periphery and the connecting panel 13 that is positioned at frame 12; Connecting panel 13 is fixedly connected on the frame 12; Surround a plurality of chambers 11 between the adjacent connecting panel 13 and between connecting panel 13 and the frame 12, a plurality of chambers 11 form above-mentioned hollow structure.Form the supporting leg backing plate through a plurality of connecting panels 13 and frame 12 are fixed together, can in the support strength that guarantees the supporting leg backing plate, reduce the quality of supporting leg backing plate, alleviate staff's labour intensity.This chamber 11 can be the osed top chamber.
The through hole 131 that extends along the neutral line plane also can be offered in the position that at least one connecting panel 13, is positioned at neutral line, and the quantity of through hole 131 can be for a plurality of, further to alleviate the quality of supporting leg backing plate.In the middle of present embodiment; The neutral line position of each sidewall of each chamber 11 all offers through hole 131, does not stress on the connecting panel 13 or stressed less a part of structure because 131 of through holes occupy, and therefore can not have influence on the structural strength of whole connecting panel 13; Can be under the condition of the pressure load-carrying capacity that does not reduce the supporting leg backing plate; Farthest alleviate the quality of supporting leg backing plate, save the material of supporting leg backing plate, the labour intensity when alleviating the transfer of supporting leg backing plate.Through hole 131 can be for square etc., and preferably, through hole 131 is circular, and be arranged on the middle part of each sidewall of each chamber 11.
The backing plate body 10 of present embodiment is a cube, and it can be square column.Frame 12 be positioned at backing plate body 10 around, be connected with the connecting panel 13 that a plurality of square crossings are provided with at frame 12 internal fixation, connecting panel 13 is straight plate.A plurality of connecting panels 13 match with frame 12, and backing plate body 10 inside are evenly divided into a plurality of square capacitors 11.When being used for supporting role, connecting panel 13 forms supporting leg together with frame 12 and supports, and can guarantee the support strength at each position.
The bearing surface that is used for support leg at backing plate body 10 is provided with countersink, is used to put into supporting leg, and supporting leg is carried out spacing, prevents that supporting leg from deviating from the supporting leg backing plate in the course of the work, causes the accident.Countersink for example is the circular counter bore 16 on the supporting leg bearing surface that is arranged on backing plate body 10.
At least one side of supporting leg backing plate can also be provided with shrouding 14; Form the structure of an opening of a face closure, the side that shrouding 14 is set can be selected modes of emplacement according to practical situations, for example in the softer zone of soil properties such as marsh; The side that shrouding 14 is set is supported on the ground; Make a side of opening be used to carry supporting leg,, prevent that the supporting leg backing plate from sinking to increase the load area of supporting leg backing plate.And, then can the side that shrouding 14 is set be arranged on the support-side of supporting leg in the harder zone of soil property, and counterbore 16 is set on shrouding 14, so that supporting leg is realized better supporting role.
The supporting leg backing plate of present embodiment also can all be provided with shrouding 14 in both sides, make shrouding 14 and frame 12 surround the closed region, and connecting panel 13 is positioned at this closed region.So, then can on the shrouding 14 of support leg, counterbore 16 be set, so that carry out spacing to supporting leg.This kind supporting leg backing plate is applicable to various ground condition, can obtain support performance preferably.
In the hollow structure of backing plate body 10, can be vacant, also can fill less than the material of backing plate body 10 with density, specifically can determine according to production technology.
The corner of each chamber 11 of hollow structure all can be provided with fillet or chamfering, stress concentration occurs to prevent backing plate body 10, improves the supporting capacity of backing plate body 10.
The backing plate body 10 of supporting leg backing plate can adopt the uniform thickness plate body, also can adopt the not plate body of uniform thickness, in the present embodiment, employing be the uniform thickness plate body.
In conjunction with extremely shown in Figure 8 referring to Fig. 5; Supporting leg backing plate according to a second embodiment of the present invention, the supporting leg backing plate of itself and first embodiment is basic identical, and difference is; In the middle of the present embodiment; The connecting panel 13 of supporting leg backing plate comprises that the annular arrangement connecting panel and the end that are arranged on backing plate body 10 middle parts are connected on the annular arrangement connecting panel, and the other end is fixedly connected on a plurality of direct-connected fishplate bar on the frame 12, and direct-connected fishplate bar evenly is provided with along the periphery wall of annular arrangement connecting panel.
In conjunction with extremely shown in Figure 12 referring to Fig. 9; The supporting leg backing plate of a third embodiment in accordance with the invention; The supporting leg backing plate of itself and second embodiment is basic identical, and difference is, the connecting panel 13 of the supporting leg backing plate of present embodiment; Also be provided with second annular arrangement connecting panel in annular arrangement connecting panel and the position between the frame 12 at the center; Second annular arrangement connecting panel is concentric with the annular arrangement connecting panel at center, and and direct-connected fishplate bar between intersect, can further improve the support performance of supporting leg backing plate.
In conjunction with extremely shown in Figure 16 referring to Figure 13; The supporting leg backing plate of a fourth embodiment in accordance with the invention, the supporting leg backing plate of itself and the 3rd embodiment is basic identical, and difference is; The frame 12 of the supporting leg backing plate of present embodiment is circular, and the final supporting leg backing plate that forms is cylindrical.
In conjunction with referring to Figure 17 to shown in Figure 20, supporting leg backing plate according to a fifth embodiment of the invention, the supporting leg backing plate of itself and first embodiment is basic identical, difference is that the supporting leg backing plate of present embodiment is square frustum structure.Certainly, the supporting leg backing plate also can be circular or polygonal frustum structure.
In a unshowned embodiment, hollow structure also can for heart layer plane therefrom to the blind hole that the upper surface and/or the lower surface of backing plate body 10 extends, promptly extend upper surface and lower surface that blind hole does not run through backing plate body 10.Preferably, the development length of this blind hole is advisable with the integrated support intensity of excessive influence backing plate supporting leg not.
In conjunction with referring to Figure 21 and shown in Figure 22, when the operation of supporting leg backing plate support leg, the supporting leg backing plate mainly bears pressure, upper surface D
1Apply downward pressure through supporting leg, lower surface D
2Upward pressure through bearing surfaces such as ground provides support reaction.Because upper surface D
1Application of force scope is than lower surface D
2Little, so the supporting leg backing plate produces certain bending moment power, upper surface D
1Compression chord, lower surface D
2Receive tensile stress, stressed more little the closer to neutral surface H institute.If the supporting leg backing plate only bears downward pressure; Adopt connecting panel 13 just can play good supporting role; And for the carrying with bending moment force, near the effect of bending moment force neutral surface H is very little, even therefore near the material the neutral surface H is handled; Make not stress or stressed very little part formation hollow structure, also can not influence the pressure load-carrying capacity of whole backing plate supporting leg.The present invention formally utilizes above-mentioned principle that the supporting leg backing plate has been made improvement.
From above description, can find out that the above embodiments of the present invention have realized following technique effect: the supporting leg backing plate comprises the backing plate body, and the backing plate body comprises the hollow structure that is positioned on the neutral line.Through on the neutral line of backing plate body, hollow structure being set; Can be under the condition of the pressure load-carrying capacity that does not influence the supporting leg backing plate; The quality that alleviates the supporting leg backing plate as much as possible effectively alleviates staff's labour intensity, increases the ease for use of supporting leg backing plate; Save material, reduced cost.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a supporting leg backing plate is characterized in that, comprises backing plate body (10), and said backing plate body (10) comprises the hollow structure that is positioned on the neutral line.
2. supporting leg backing plate according to claim 1; It is characterized in that; Said backing plate body (10) comprises the frame (12) that is arranged on periphery and is positioned at said frame (12) and is connected the connecting panel (13) on the said frame (12), and said hollow structure is the osed top chamber (11) that adjacent said connecting panel (13) and said frame (12) surround.
3. supporting leg backing plate according to claim 1; It is characterized in that; Said backing plate body (10) comprises the frame (12) that is arranged on periphery and is positioned at said frame (12) and is connected the connecting panel (13) on the said frame (12); Said hollow structure is the chamber (11) that adjacent said connecting panel (13) and said frame (12) surround, and the position that is positioned at said neutral line at least one said connecting panel (13) offers the through hole (131) that extends along said neutral line plane.
4. supporting leg backing plate according to claim 3 is characterized in that, the neutral line position of each sidewall of each said chamber (11) all offers said through hole (131).
5. supporting leg backing plate according to claim 1 is characterized in that, said hollow structure comprises and is positioned on the said neutral line plane closed chamber that upper surface and/or lower surface to said backing plate body (10) extend.
6. according to claim 3 or 4 described supporting leg backing plates; It is characterized in that; Said backing plate body (10) also comprises the shrouding (14) of the both sides up and down that are fixedly connected on said connecting panel (13); Said shrouding (14) surrounds the closed region with said frame (12), and said connecting panel (13) is positioned at said closed region.
7. according to claim 3 or 4 described supporting leg backing plates, it is characterized in that said backing plate body (10) also comprises the upside that is fixedly connected on said connecting panel (13) or the shrouding (14) of downside.
8. according to each described supporting leg backing plate in the claim 2 to 4, it is characterized in that said connecting panel (13) is the straight plate that a plurality of square crossings are provided with.
9. according to each described supporting leg backing plate in the claim 2 to 4, it is characterized in that, said connecting panel (13) comprise arc and with said arc straight plate arranged in a crossed manner.
10. according to each described supporting leg backing plate in the claim 1 to 5, it is characterized in that said backing plate body (10) is cylinder, square column or frustum.
11. according to each described supporting leg backing plate in the claim 1 to 5, it is characterized in that, be filled with the weighting material of density in the said hollow structure less than said backing plate body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210231982.6A CN102717780B (en) | 2012-07-05 | 2012-07-05 | Support leg backing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210231982.6A CN102717780B (en) | 2012-07-05 | 2012-07-05 | Support leg backing plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102717780A true CN102717780A (en) | 2012-10-10 |
| CN102717780B CN102717780B (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210231982.6A Active CN102717780B (en) | 2012-07-05 | 2012-07-05 | Support leg backing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102717780B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015113843A1 (en) * | 2015-08-20 | 2017-02-23 | Putzmeister Engineering Gmbh | Abstützunterlegplatte |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116559A1 (en) * | 1991-05-21 | 1992-11-26 | Lothar Kehne | Slewing crane support-plate - comprises tubular members welded between plate and annular sections forming top one |
| US20060081160A1 (en) * | 2004-10-19 | 2006-04-20 | Dimension Industries Co., Ltd. | Foamy stuffing element reinforced tabletop |
| GB2459533A (en) * | 2008-04-30 | 2009-11-04 | Internat Pipeline Products Ltd | Composite support slab for use as ground interface for stabilising outrigger feet |
| DE102009003087A1 (en) * | 2009-05-13 | 2011-02-03 | H.Brandner Stahlbau E.K. | Heavy duty distribution plate for use as e.g. support plate between supporting pistons of crane and bottom areas, has interface layer whose predominant part is formed by chambers with walls arranged parallel to direction of normal surface |
| CN201901526U (en) * | 2010-12-17 | 2011-07-20 | 徐州重型机械有限公司 | Mobile crane and supporting-foot base plate thereof |
| CN202132662U (en) * | 2011-06-28 | 2012-02-01 | 三一重工股份有限公司 | Support leg liner plate and engineering machinery |
| CN102502400A (en) * | 2011-11-08 | 2012-06-20 | 中联重科股份有限公司 | Frame and frame rotary supporting seat structure |
| CN202641656U (en) * | 2012-07-05 | 2013-01-02 | 中联重科股份有限公司 | Support leg backing plate |
-
2012
- 2012-07-05 CN CN201210231982.6A patent/CN102717780B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116559A1 (en) * | 1991-05-21 | 1992-11-26 | Lothar Kehne | Slewing crane support-plate - comprises tubular members welded between plate and annular sections forming top one |
| US20060081160A1 (en) * | 2004-10-19 | 2006-04-20 | Dimension Industries Co., Ltd. | Foamy stuffing element reinforced tabletop |
| GB2459533A (en) * | 2008-04-30 | 2009-11-04 | Internat Pipeline Products Ltd | Composite support slab for use as ground interface for stabilising outrigger feet |
| DE102009003087A1 (en) * | 2009-05-13 | 2011-02-03 | H.Brandner Stahlbau E.K. | Heavy duty distribution plate for use as e.g. support plate between supporting pistons of crane and bottom areas, has interface layer whose predominant part is formed by chambers with walls arranged parallel to direction of normal surface |
| CN201901526U (en) * | 2010-12-17 | 2011-07-20 | 徐州重型机械有限公司 | Mobile crane and supporting-foot base plate thereof |
| CN202132662U (en) * | 2011-06-28 | 2012-02-01 | 三一重工股份有限公司 | Support leg liner plate and engineering machinery |
| CN102502400A (en) * | 2011-11-08 | 2012-06-20 | 中联重科股份有限公司 | Frame and frame rotary supporting seat structure |
| CN202641656U (en) * | 2012-07-05 | 2013-01-02 | 中联重科股份有限公司 | Support leg backing plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015113843A1 (en) * | 2015-08-20 | 2017-02-23 | Putzmeister Engineering Gmbh | Abstützunterlegplatte |
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| Publication number | Publication date |
|---|---|
| CN102717780B (en) | 2015-06-17 |
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