CN202322005U - Supporting leg and crane with same - Google Patents
Supporting leg and crane with same Download PDFInfo
- Publication number
- CN202322005U CN202322005U CN2011204014289U CN201120401428U CN202322005U CN 202322005 U CN202322005 U CN 202322005U CN 2011204014289 U CN2011204014289 U CN 2011204014289U CN 201120401428 U CN201120401428 U CN 201120401428U CN 202322005 U CN202322005 U CN 202322005U
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- Prior art keywords
- hydraulic valve
- supporting leg
- oil cylinder
- pipeline
- vertical oil
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Abstract
The utility model discloses a supporting leg for a crane, which comprises at least one movable supporting leg, a vertical oil cylinder, a pipeline and a hydraulic valve, wherein the vertical oil cylinder is mounted at the end part of the movable supporting leg; the small cavity of the vertical oil cylinder is connected with the hydraulic valve through the pipeline; the expansion and the contraction of the vertical oil cylinder are controlled by the hydraulic valve; and the hydraulic valve is arranged in the movable supporting leg. According to the built-in mounting of the hydraulic valve, the hydraulic valve is effectively prevented from being crashed during the operation process of the supporting leg, so that the service lives of the hydraulic valve and the supporting leg are prolonged. In one preferable method, the hydraulic valve is fixed on the bottom plate of the movable supporting leg and approaches to the vertical oil cylinder as far as possible, so that the connection between the hydraulic valve and the pipeline is smooth, the arrangement is reasonable, and the pipeline is saved so as to improve the work efficiency of the hydraulic valve. The utility model further provides the crane with the supporting leg.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of supporting leg of hoisting crane.In addition, the utility model also relates to a kind of hoisting crane that comprises above-mentioned supporting leg.
Background technology
Along with the fast development of China's economic construction, more and more widely for the application of hoisting crane.Along with improving constantly of hoisting crane tonnage, supporting leg increases in the application in hoisting crane field day by day.
Supporting leg is the important composition parts of hoisting crane, when hoisting crane carries out operation, passes through supporting leg earlier with the hoisting crane supporting & stablizing, and then carries out engineer operation, and supporting leg generally is positioned at the both sides of complete machine front-end and back-end, can carry out expanding-contracting action.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is a kind of view of stretching out of typical crane supporting leg, and Fig. 2 is the front view of hoisting crane supporting leg shown in Figure 1.
A kind of representative type supporting leg comprises at least one joint movable supporting legs 2, and fixed supporting leg 1 is welded on the sole of hoisting crane, and second movable supporting legs 22 and first movable supporting legs 21 are set in said fixed supporting leg 1 inside successively, and crank motion can stretch.Vertical oil cylinder 4 vertically is assemblied in said first movable supporting legs 21 ends, and leg disc 5 is mounted on said fuel tank 4 lower ends, and vertical oil cylinder 4 is fore and aft motion up and down.
When hoisting crane need support operation, stretch out the supporting leg that is positioned at the left and right sides, hoisting crane front and back end earlier, more vertical oil cylinder 4 is stretched out, leg disc 5 is supported in ground, can carry out operation behind the hoisting crane supporting & stablizing.
The expanding-contracting action of above-mentioned hoisting crane supporting leg all is to rely on hoisting crane supporting leg hydraulic efficiency pressure system to accomplish, and the supporting leg hydraulic efficiency pressure system comprises Hydraulic Pump, hydraulic valve, hydraulic ram and pipeline etc.Hydraulic valve is that critical elements and the cost in the hydraulic efficiency pressure system is higher.
The arrangement of representative type supporting leg hydraulic valve 3 and pipeline 8 is as shown in Figure 2, and hydraulic valve 3 is positioned at vertical oil cylinder 4 lower ends, and leg disc 5 is positioned at vertical oil cylinder 4 ends, and hydraulic valve 3 is less with the distance of leg disc 5.Because be not total energy maintenance level in leg disc 5 working processs, leg disc 5 very easily tilts, and may bump after the inclination and ruin hydraulic valve 3.Supporting leg hydraulic valve 3 places vertical oil cylinder 4 inboards simultaneously, can not see this hydraulic valve 3 when the operator pulls leg disc 5 clearly, and the deviation of pulling leg disc 5 directions also can be bumped and ruined this hydraulic valve 3.
Hydraulic valve is an element very important in the hydraulic efficiency pressure system, and the damage of supporting leg hydraulic valve will directly influence the expanding-contracting action of supporting leg, and the supporting leg that situation is serious can't normal operation.
Therefore, how solving the damageable problem of supporting leg hydraulic valve, improve the reliability of supporting leg hydraulic efficiency pressure system, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of the utility model provides a kind of supporting leg of hoisting crane, and this supporting leg can protect hydraulic valve to avoid it to be damaged, and has improved the service life of supporting leg hydraulic valve effectively.Another purpose of the utility model provides a kind of hoisting crane that comprises above-mentioned supporting leg.
For solving the problems of the technologies described above; The utility model provides a kind of supporting leg of hoisting crane; Comprise at least one joint movable supporting legs, vertical oil cylinder, pipeline and hydraulic valve; Said vertical oil cylinder is installed on said movable supporting legs end, and the loculus of said vertical oil cylinder is connected by said pipeline with said hydraulic valve, and said hydraulic valve is positioned at said movable supporting legs.
Preferably, said hydraulic valve is fixed on the base plate of said movable supporting legs.
Preferably, the base plate of said movable supporting legs has circular hole, and said vertical oil cylinder passes said circular hole, and said hydraulic valve is fixed on said circular hole edge.
Preferably, said hydraulic valve is fixed on the said base plate by joint, and said upper end of joint is connected with said hydraulic valve, and the lower end is connected with said base plate, passes the through hole of said joint vertical direction with said hydraulic valve lower end bonded assembly pipeline.
Preferably, said hydraulic valve is fixed on the said base plate by assembly joint, and said assembly joint comprises fittings body and nut; Said fittings body has head that is connected with said hydraulic valve and the bar portion that is connected with said nut, and said base plate has less than said head and said nut and greater than the assembly opening of said bar portion; Said head is connected with said hydraulic valve, and said bar portion passes said assembly opening and assembles said nut, passes the through hole of said fittings body vertical direction with said hydraulic valve lower end bonded assembly pipeline.
Preferably, said assembly joint has the spline packing ring, and the bar portion of said fittings body passes said assembly opening and assembles said spline packing ring and said nut successively, and the position of said bar portion assembling spline packing ring has at least one flat horizontal surface.
Preferably, the junction of said fittings body head lower end and said bottom surface upper surface has at least one slope groove, and said movable supporting legs inside is in communication with the outside through said slope groove and said mounting hole.
Preferably, it is characterized in that said fittings body lower end is connected with said pipeline, said hydraulic valve is communicated with the through hole of said pipeline by said fittings body.
The utility model also provides a kind of hoisting crane, comprise sole and with said sole bonded assembly supporting leg, said supporting leg is above-mentioned each described supporting leg.
The supporting leg that the utility model provided comprises at least one joint movable supporting legs; Vertical oil cylinder is vertically installed in said movable supporting legs end; Be positioned at movable supporting legs in-to-in hydraulic valve and be connected by pipeline with the loculus of said vertical oil cylinder, said hydraulic valve is controlled the flexible of said vertical oil cylinder.The supporting leg of this structure has avoided said supporting leg in the support process, and the action of all the other each parts has been protected the safety of supporting leg hydraulic valve in the crane job process effectively to the damage of said hydraulic valve, the service life of also having improved supporting leg simultaneously.
A kind of preferred embodiment in, the base plate of said movable supporting legs has circular hole, said vertical oil cylinder passes said circular hole, said hydraulic valve is fixed on said circular hole edge.At this moment, said hydraulic valve is positioned at the position of said movable supporting legs near said vertical oil cylinder, and the supporting leg of arranging like this can be saved pipeline effectively, and short piping layout can improve the work efficiency of hydraulic valve effectively.
In another preferred embodiment; Said hydraulic valve is fixed on the base plate of said movable supporting legs by assembly joint; Said assembly joint comprises fittings body and nut; Said fittings body has head that is connected with said hydraulic valve and the bar portion that is connected with said nut, and said base plate has less than said head and said nut and greater than the assembly opening of said bar portion; Said head is with after said hydraulic valve is connected, and the assembly opening that said base plate passes in said bar portion assembles said nut, passes the through hole of said fittings body vertical direction with said hydraulic valve lower end bonded assembly pipeline.Said assembly joint can be vertically mounted on hydraulic valve on the said base plate, and vertically arranged hydraulic valve will make the connection of pipeline smooth and easy, arrangement convenience.
In another preferred embodiment; Said assembly joint can also have the spline packing ring; Said spline packing ring and said nut assemble after passing said assembly opening successively in the bar portion of said fittings body; The position of said bar portion assembling spline packing ring has at least one flat horizontal surface, and the flat horizontal surface of said fittings body is convenient to install the spline packing ring, the rotation phenomenon of said assembly joint when said spline packing ring and said flat horizontal surface can effectively be avoided fastening said nut.
In another preferred embodiment, the junction of said fittings body head lower end and said bottom surface upper surface can have at least one slope groove, and said movable supporting legs inside is in communication with the outside through said slope groove and said mounting hole.Said supporting leg is a box-structure, may hoard sewage in the casing, and the slope groove of said fittings body and the mounting hole of base plate can be the supporting leg draining.
The utility model also provides a kind of hoisting crane; Comprise sole and with the above-mentioned supporting leg of said sole bonded assembly; Said supporting leg has been protected the supporting leg hydraulic valve effectively; The damage of supporting leg hydraulic valve when having avoided crane job has effectively improved the life-span of supporting leg hydraulic efficiency pressure system, and then has improved the life-span of hoisting crane supporting leg.
Description of drawings
Fig. 1 is a kind of view of stretching out of typical crane supporting leg;
Fig. 2 is the front view of hoisting crane supporting leg shown in Figure 1;
Fig. 3 provides the upward view of a kind of specific embodiment of supporting leg for the utility model;
Fig. 4 is that supporting leg A-A shown in Figure 3 is to cutaway view;
Fig. 5 is that the axle of supporting leg shown in Figure 3 is surveyed scheme drawing;
Fig. 6 is the partial enlarged drawing at B position among Fig. 5;
Fig. 7 is the exploded perspective view of hydraulic valve, assembly joint and base plate in the supporting leg shown in Figure 3;
Fig. 8 is the specific constructive form scheme drawing of a kind of fittings body in the assembly joint shown in Figure 7.
The specific embodiment
The core of the utility model provides a kind of supporting leg that is used for hoisting crane, and this supporting leg can effectively be avoided the damage of supporting leg hydraulic valve, increases the service life of supporting leg.Another core of the utility model provides a kind of hoisting crane that comprises above-mentioned supporting leg.
In order to make those skilled in the art person understand the scheme of the utility model better, the utility model is done further to specify below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 3 to Fig. 6, Fig. 3 for the utility model provide the upward view of a kind of specific embodiment of supporting leg, Fig. 4 be supporting leg A-A shown in Figure 3 to cutaway view, Fig. 5 is a survey scheme drawing of supporting leg shown in Figure 3, Fig. 6 is the partial enlarged drawing at B position among Fig. 5.
In a kind of specific embodiment; The supporting leg that the utility model provided comprises at least one joint movable supporting legs 2, vertical oil cylinder 4, pipeline 8 and hydraulic valve 3; Said vertical oil cylinder 4 vertically is installed in said movable supporting legs 2 ends; Said hydraulic valve 3 is positioned at said movable supporting legs 2 inside, and said pipeline 8 connects the loculus of said hydraulic valve 3 and said vertical oil cylinder 4, and said hydraulic valve 3 is controlled the flexible of said vertical oil cylinder 4.Said vertical oil cylinder 4 lower ends articulate leg disc 5, and the leg disc 5 that vertical oil cylinder 4 stretches out when vertical direction is done fore and aft motion can support ground.
The supporting leg that the utility model provided is arranged in the fixed supporting leg 1 of hoisting crane chassis frame substantially.The movable supporting legs 2 of said supporting leg is set in the said fixed supporting leg 1, and crank motion can stretch.When hoisting crane need support operation, stretch out the supporting leg of its left and right sides, rear and front end earlier, vertical direction stretches out vertical oil cylinder 4 then, and leg disc 5 is supported on the ground.Hydraulic valve 3 has adopted built-in arrangement in the utility model, in the whole support part process of supporting leg, even leg disc 5 run-off the straights can not touch said hydraulic valve 3 yet and make its damage.Said hydraulic valve 3 is the critical elements in the supporting leg course of action, and the utility model has significantly improved the service life of said hydraulic valve 3, and then has also improved the service life of said supporting leg.
Said vertical oil cylinder 4 vertically is installed in movable supporting legs 2 ends; Said movable supporting legs 2 refers generally to the movable supporting legs of minor details; Certainly; Said vertical oil cylinder 4 is installed on arbitrary joint movable supporting legs of said supporting leg and also is fine, and the position of said vertical oil cylinder 4 non-end on movable supporting legs 2 also is fine.Consider that from the span of hoisting crane the support span of hoisting crane is wide more, its support is stable more, so most preferred mode is the end that vertical oil cylinder 4 is installed on the minor details movable supporting legs.
Further in the embodiment, said hydraulic valve 3 can be fixed on the base plate 6 of said movable supporting legs 2, and the stationkeeping of said hydraulic valve 3 can make the work of its safety and reliability.
In the concrete embodiment of another kind, the base plate 6 of said movable supporting legs 2 has circular hole 61, and said vertical oil cylinder 4 passes the circular hole 61 of said base plate 6, and said hydraulic valve 3 is fixed on the said base plate 6 and is positioned at the edge of said circular hole 61.Can make so said hydraulic valve 3 near as far as possible in said movable supporting legs 2 inside near said vertical oil cylinder 4.
Certain said hydraulic valve 3 keeps clear of said vertical oil cylinder 4 and also is fine, but from the length of pipeline 8, the layout of pipeline 8 also has the aspects such as efficient of hydraulic valve 3 to consider, most preferred mode be make said hydraulic valve 3 near as far as possible near said vertical oil cylinder 4.
In the another kind of concrete embodiment; The hydraulic valve 3 that the utility model provided is fixed on the said base plate 6 by joint; Said upper end of joint is connected with said hydraulic valve 3, and the lower end is connected with said base plate 6, passes the through hole of said joint vertical direction with said hydraulic valve 3 lower end bonded assembly pipelines 8.Connect said hydraulic valve 3 and said base plate 6 by said joint, can make connection more reliable, make said hydraulic valve 3 safer.
Please refer to Fig. 7 and Fig. 8, Fig. 7 is the exploded perspective view of hydraulic valve, assembly joint and base plate in the supporting leg shown in Figure 3, and Fig. 8 is the specific constructive form scheme drawing of a kind of fittings body in the assembly joint shown in Figure 7.
In the concrete embodiment of another kind, hydraulic valve 3 can also be fixed on the said base plate 6 by assembly joint 7, and said assembly joint 7 comprises fittings body 71 and nut 73; Said fittings body 71 has head that is connected with said hydraulic valve 3 and the bar portion that is connected with said nut 73, and said base plate 6 has less than said head and said nut 73 and greater than the assembly opening 62 of said bar portion; Said head is connected with said hydraulic valve 3, and the said nut 73 of said assembly opening 62 assemblings passes in said bar portion, passes the through hole of said fittings body 71 vertical directions with said hydraulic valve 3 lower end bonded assembly pipelines 8.Said assembly joint 7 is vertically mounted on said hydraulic valve 3 on the base plate 6 of said movable supporting legs 2, and vertically arranged hydraulic valve 3 makes it be connected smooth and easy arrangement convenience with said vertical oil cylinder 4 bonded assembly pipelines 8.
Further in the embodiment; Said assembly joint 7 can also have spline packing ring 72; The bar portion of said fittings body 71 passes and assembles said spline packing ring 72 and said nut 73 behind the said assembly opening 62 successively, and the position of said bar portion assembling spline packing ring 72 has at least one flat horizontal surface 712.The flat horizontal surface 712 of said fittings body 71 is convenient to install spline packing ring 72, the rotation phenomenon of said assembly joint 7 in the time of can effectively avoiding nut 73 fastening.
The spline mode of certain said assembly joint 7 not only is confined to top situation, and other structure or forms that can play the spline effect also can be applied to said assembly joint 7.
A kind of preferred embodiment in; The junction of said fittings body 71 head lower ends and said bottom surface 6 upper surfaces can also have at least one slope groove 711, and said movable supporting legs 2 inside and the external world are communicated with through said slope groove 711 and said mounting hole 62.Because said supporting leg is a box-structure, may hoard sewage in the casing, movable supporting legs 2 can be through the slope groove 711 of said fittings body 71 and mounting hole 62 drainings of said base plate 6.
The drainage pattern of certain said movable supporting legs 2 not only is confined to top situation, and structure or form that other can play a role in the drainage also are fine.
Said fittings body 71 lower ends can directly be connected with said pipeline 6, and the upper end connects said hydraulic valve 3, and said hydraulic valve 3 is communicated with the through hole of said pipeline 8 by said fittings body 71.When said hydraulic valve 3 direct connection pipelines 8, pipeline passes the through hole of said fittings body 71, and the through hole that then requires said fittings body 71 is greater than said pipeline 8.When the lower end of the said fittings body 71 of said pipeline 8 direct connections, the through hole of said fittings body need be greater than said pipeline 8, and such connection mode can make fittings body 71 have relative smaller volume.
Obviously; Said hydraulic valve 3 also can be fixed to other inwalls of said movable supporting legs 2; Fixing said hydraulic valve 3 and said movable supporting legs base plate 6 also not only be confined to joint or assembly joint 7; Said hydraulic valve 3 also can be not orthogonal to said base plate 6, everyly can guarantee that said hydraulic valve 3 is positioned at said other connecting devices of movable supporting legs 2 in-to-ins or type of attachment also can be used for fixing said hydraulic valve 3.
Except above-mentioned supporting leg, the utility model also provides a kind of hoisting crane that comprises above-mentioned supporting leg, and the structure of these other each several parts of hoisting crane please refer to prior art, and this paper repeats no more.
More than hoisting crane and supporting leg 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 (9)
1. the supporting leg of a hoisting crane; Comprise at least one joint movable supporting legs (2), vertical oil cylinder (4), pipeline (8) and hydraulic valve (3); Said vertical oil cylinder (4) is installed on said movable supporting legs (2) end; The loculus of said vertical oil cylinder (4) is connected by said pipeline (8) with said hydraulic valve (3), it is characterized in that, said hydraulic valve (3) is positioned at said movable supporting legs (2).
2. supporting leg as claimed in claim 1 is characterized in that, said hydraulic valve (3) is fixed on the base plate (6) of said movable supporting legs (2).
3. supporting leg as claimed in claim 2 is characterized in that, the base plate (6) of said movable supporting legs (2) has circular hole (61), and said vertical oil cylinder (4) passes said circular hole (61), and said hydraulic valve (3) is fixed on said circular hole (61) edge.
4. supporting leg as claimed in claim 3; It is characterized in that; Said hydraulic valve (3) is fixed on the said base plate (6) by joint; Said upper end of joint is connected with said hydraulic valve (3), and the lower end is connected with said base plate (6), passes the through hole of said joint vertical direction with said hydraulic valve (3) lower end bonded assembly pipeline (8).
5. supporting leg as claimed in claim 3 is characterized in that, said hydraulic valve (3) is fixed on the said base plate (6) by assembly joint (7), and said assembly joint (7) comprises fittings body (71) and nut (73); Said fittings body (71) has head that is connected with said hydraulic valve (3) and the bar portion that is connected with said nut (73), and said base plate (6) has less than said head and said nut (73) and greater than the assembly opening (62) of said bar portion; Said head is connected with said hydraulic valve (3), and said bar portion passes said assembly opening (62) and assembles said nut (73), passes the through hole of said fittings body (71) vertical direction with said hydraulic valve (3) lower end bonded assembly pipeline (8).
6. supporting leg as claimed in claim 5; It is characterized in that; Said assembly joint (7) has spline packing ring (72); The bar portion of said fittings body (71) passes said assembly opening (62) and assembles said spline packing ring (72) and said nut (73) successively, and the position of said bar portion's assembling spline packing ring (72) has at least one flat horizontal surface (712).
7. supporting leg as claimed in claim 6; It is characterized in that; The junction of said fittings body (71) head lower end and said bottom surface (6) upper surface has at least one slope groove (711), and said movable supporting legs (2) is inner to be in communication with the outside through said slope groove (711) and said mounting hole (62).
8. like each described supporting leg of claim 5 to 7, it is characterized in that said fittings body (71) lower end is connected with said pipeline (8), said hydraulic valve (3) is communicated with the through hole of said pipeline (8) by said fittings body (71).
9. hoisting crane, comprise sole and with said sole bonded assembly supporting leg, it is characterized in that said supporting leg is above-mentioned 1 to 8 each described supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204014289U CN202322005U (en) | 2011-10-20 | 2011-10-20 | Supporting leg and crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204014289U CN202322005U (en) | 2011-10-20 | 2011-10-20 | Supporting leg and crane with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322005U true CN202322005U (en) | 2012-07-11 |
Family
ID=46433995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204014289U Expired - Fee Related CN202322005U (en) | 2011-10-20 | 2011-10-20 | Supporting leg and crane with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322005U (en) |
-
2011
- 2011-10-20 CN CN2011204014289U patent/CN202322005U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |