CN203005387U - Support leg and engineering machine with the same - Google Patents
Support leg and engineering machine with the same Download PDFInfo
- Publication number
- CN203005387U CN203005387U CN 201220673088 CN201220673088U CN203005387U CN 203005387 U CN203005387 U CN 203005387U CN 201220673088 CN201220673088 CN 201220673088 CN 201220673088 U CN201220673088 U CN 201220673088U CN 203005387 U CN203005387 U CN 203005387U
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- CN
- China
- Prior art keywords
- supporting leg
- hinge head
- guard collar
- globular hinge
- pedestal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a support leg and an engineering machine with the same. The support leg comprises a telescopic cylinder and a support leg seat, wherein the telescopic cylinder comprises a cylinder barrel and a piston rod, and a spherical hinging head is arranged on the end portion, exposed of the cylinder barrel, of the piston rod. The support leg seat comprises a base and a press plate arranged on the base, wherein a groove matched with the spherical hinging head is arranged in the base, the spherical hinging head is arranged in the groove, and a through hole with a diameter smaller than that of the spherical hinging head is formed in the center of the press plate. The piston rod penetrates through the through hole in the press plate which is fixed on the base. The support leg further comprises a protective ring which is arranged between the press plate and the base, and the surface of the spherical hinging head is tightly attached to the surface of the inner ring of the protective ring. The leg can be used for preventing particles or slurry from entering a position between the spherical hinging head and the groove, abrasion is reduced, and therefore the using effect and the service life of the support leg can be effectively improved.
Description
Technical field
The utility model relates to construction machinery and equipment, in particular to a kind of construction machinery and equipment supporting leg; The utility model also relates to the construction machinery and equipment with this supporting leg simultaneously.
Background technology
At present, the application of supporting leg on implement is more and more general.Usually, when the implement operation, they are supported on Active workings, for implement provides stable operating area, prevent that implement from toppling in operation process.
Usually, supporting leg comprises supporting leg seat and telescopic oil cylinder, and the cylinder body of telescopic oil cylinder is connected with the implement body, and the piston rod of telescopic oil cylinder and supporting leg seat couple together by the swivel coupling that bulb joint forms.When the implement operation, the supporting leg seat supports is on Active workings, and telescopic oil cylinder just bearing force passes to the implement body.The set-up mode of supporting leg seat on supporting leg as shown in Figure 1, this supporting leg seat comprises: pedestal 11, pressing plate 12 and bearing shell 13; Bulb 15 on the piston rod 16 of telescopic oil cylinder is arranged in the space that pressing plate 12 and bearing shell 13 surround.For convenience of lubricated, pedestal 11 is provided with oilway 14.This supporting leg seat in use, the particle on Active workings or slurry easily enter between bulb 15 and bearing shell 13 by the gap between bulb 15 and pressing plate 12, between bulb 15 and bearing shell 13, cause the supporting leg seat lubricated not smooth.If the supporting leg seat is often lubricated not smooth, easily cause bulb 15 to wear and tear too early, finally affect result of use and the service life of supporting leg.
Therefore, how to promote the stain resistance of supporting leg, to promote result of use and the service life of supporting leg, be still the technical matters that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model proposes a kind of supporting leg, this supporting leg can effectively promote result of use and the service life of supporting leg by adopting the supporting leg seat of new construction.In addition, the utility model also provides a kind of construction machinery and equipment with this supporting leg.
On the one hand, the utility model provides a kind of supporting leg, comprises telescopic oil cylinder and supporting leg seat, and described telescopic oil cylinder comprises cylinder barrel and piston rod, and the end that described piston rod exposes described cylinder barrel is provided with the globular hinge head; Described supporting leg seat comprises pedestal, is located at the pressing plate of described pedestal top, be provided with the groove that coordinates with described globular hinge head above described pedestal, described globular hinge head is located in described groove, and the center of described pressing plate is provided with diameter less than the through hole of globular hinge head diameter; Described piston rod passes the through hole of described pressing plate, described pressing plate be fixed on pedestal above, also comprise guard collar, described guard collar is arranged between described pressing plate and described pedestal, and the inner peripheral surface of described globular hinge head surface and described guard collar fits tightly.。
Further, the inner peripheral surface of described guard collar and the upper surface of described guard collar form sharp shape lip limit, and described sharp shape lip limit is close on described globular hinge head.
Further, the lower surface of the inner peripheral surface of described guard collar and described guard collar formation obtuse lip limit.
Further, the inner peripheral surface of described guard collar is curved surface, and described application of a surface is on described globular hinge head.
Further, the inner peripheral surface of described guard collar is the conical surface, the described conical surface and described globular hinge head surperficial tangent.
Further, be provided with the oil leab that is communicated in groove on described pedestal.
Further, be provided with bearing shell between the groove of described pedestal and globular hinge head.
Further, described guard collar is made by rubber or plastics.
The supporting leg seat that the supporting leg that the utility model proposes adopts comprises guard collar; described guard collar is arranged between described pressing plate and described pedestal; and the inner peripheral surface of described globular hinge head surface and described guard collar fits tightly; thereby can prevent that particle or slurry from entering between globular hinge head and groove; reduce wearing and tearing, improved the service life of supporting leg.
In further technical scheme, by sharp shape lip limit is set on guard collar, and sharp shape lip limit is close on the globular hinge head, can prevent effectively that like this particle and slurry from entering between globular hinge head and groove from the contact position on globular hinge head and sharp shape lip limit.
In further technical scheme, by sharp shape lip limit and obtuse lip limit are set on guard collar simultaneously, when giving supporting leg seat make-up oil or grease, grease or lubricating oil can up flow from the gap between globular hinge head and obtuse lip limit, and overflow by the gap between globular hinge head and sharp shape lip limit, thereby play effect lubricated and that clean.
On the other hand, the utility model also provides a kind of construction machinery and equipment, comprises construction machinery and equipment body and the described supporting leg of above-mentioned any one, and the cylinder barrel of the telescopic oil cylinder of described supporting leg is connected with described construction machinery and equipment body.
The supporting leg of this project machinery has adopted the described structure of above-mentioned any one, and the stain resistance of this supporting leg is stronger, result of use better and longer service life; By adopting this supporting leg can reduce the fault rate of construction machinery and equipment, can effectively promote stability and its usage economy of this project machinery.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the local structure schematic diagram of supporting leg in correlation technique;
The generalized section of the supporting leg seat that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the decomposing schematic representation of supporting leg seat shown in Figure 2;
The local structure schematic diagram of the supporting leg that Fig. 4 provides for the utility model embodiment;
The cutaway view of a kind of guard collar that Fig. 5 provides for the utility model embodiment;
The cutaway view of the another kind of guard collar that Fig. 6 provides for the utility model embodiment.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the utility model can make up mutually.Be elaborated below in conjunction with 2 to 6 pairs of specific embodiment of the utility model of accompanying drawing.
For preventing that particle or slurry from entering the supporting leg seat, and then result of use and the service life of lifting supporting leg, the utility model embodiment proposes a kind of supporting leg, comprise telescopic oil cylinder and supporting leg seat, described telescopic oil cylinder comprises cylinder barrel and piston rod 7, and the end that described piston rod 7 exposes described cylinder barrel is provided with globular hinge head 6; Described supporting leg seat comprises pedestal 5, guard collar 2, be located at the pressing plate 1 of described pedestal 5 tops and be located at bearing shell 3 in described pedestal 5, and described guard collar 2 is arranged between described pressing plate 1 and bearing shell 3; Described bearing shell 3 is provided with the curved surface that supports described globular hinge head 6, the groove that Surface forming can accommodating globular hinge head 6.The center of described guard collar 2 and pressing plate 1 is equipped with through hole, described piston rod 7 passes described pressing plate 1 and guard collar 2, and described globular hinge head 6 is arranged in described groove, and described globular hinge head 6 is surperficial and described guard collar 2 inner peripheral surface closely cooperate, and concrete structure can be with reference to figure 4.The supporting leg seat that this supporting leg adopts comprises pedestal 5, guard collar 2, be located at the pressing plate 1 of pedestal 5 tops and be located at bearing shell 3 in pedestal 5, the concrete structure of this supporting leg seat can referring to figs. 2 and 3; This supporting leg is by being arranged at guard collar between described pressing plate and described pedestal; and the inner peripheral surface of described globular hinge head surface and described guard collar fits tightly; thereby can prevent that particle or slurry from entering between globular hinge head and groove, reduce wearing and tearing, improve the service life of supporting leg.
For further strengthening the antifouling ability of supporting leg seat, guard collar 2 can be arranged like this: the upper surface of the inner peripheral surface of described guard collar 2 and described guard collar 2 forms sharp shape lip limit L1, and described sharp shape lip limit L1 is close on described globular hinge head 6.By sharp shape lip limit L1 is set on guard collar 2, and sharp shape lip limit L1 is close on globular hinge head 6, sharp shape lip limit L1 plays the effect of check valve, can effectively reduce like this particle and slurry and enter into the supporting leg seat from the gap between globular hinge head 6 and sharp shape lip limit L1.
The inner peripheral surface of guard collar 2 is specifically as follows the upper or curved surface S1 of conical surface S2, when its inner peripheral surface is arranged to conical surface S2 (specifically can with reference to figure 6), and described conical surface S2 and described globular hinge head 6 surperficial tangent; When its inner peripheral surface is arranged to curved surface S1 (specifically can with reference to figure 5), this curved surface S1 fits on globular hinge head 6.Guard collar 2 is more tight with coordinating of globular hinge head 6 like this, can further reduce particle and slurry enters the supporting leg seat.
Fitting surface for convenience of lubricated spherical articulated joint 6 and guard collar 2, obtuse lip limit L2 can be arranged in the position that the inner peripheral surface of described guard collar 2 is combined with lower surface, globular hinge head 6 is relative with the gap between obtuse lip limit L2 like this wants large, so that lubricating oil is from this Clearance Flow to the globular hinge head 6 and the fitting surface of guard collar 2; When giving supporting leg seat make-up oil or grease, grease or lubricating oil can up flow from the gap between globular hinge head 6 and obtuse lip limit L2, and then lubricated to the fitting surface of globular hinge head 6 and guard collar 2; When abundant, grease or lubricating oil can overflow from the minim gap between sharp shape lip limit L1 and globular hinge head 6, and then globular hinge head 6 and guard collar 2 are played cleanup action when grease or lubricating oil.Certainly, by offering oil leab on bearing shell 3, and this oil leab is communicated with grease cup 4 on pedestal 5, can strengthen like this lubricated to the supporting leg seat, and the mode of specifically offering of oil duct can be with reference to figure 2 and Fig. 4.
Above-mentioned guard collar can be by rubber or plastics-production, and rubber performance is stable, and resistance to abrasion is better, preferably adopts elastomeric material.
On the other hand, the utility model embodiment also provides a kind of construction machinery and equipment, comprises construction machinery and equipment body and above-mentioned supporting leg, and the cylinder barrel of the telescopic oil cylinder of described supporting leg is connected with described construction machinery and equipment body.
The supporting leg of this project machinery has adopted the described structure of above-mentioned any one, and the stain resistance of this supporting leg is stronger, result of use better and longer service life; By adopting this supporting leg can reduce the fault rate of construction machinery and equipment, can effectively promote stability and its usage economy of this project machinery.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a supporting leg, comprise telescopic oil cylinder and supporting leg seat, and described telescopic oil cylinder comprises cylinder barrel and piston rod (7), and the end that described piston rod (7) exposes described cylinder barrel is provided with globular hinge head (6); Described supporting leg seat comprises pedestal (5), is located at the pressing plate (1) of described pedestal (5) top, be provided with the groove that coordinates with described globular hinge head (6) above described pedestal (5), described globular hinge head (6) is located in described groove, and the center of described pressing plate (1) is provided with diameter less than the through hole of globular hinge head (6) diameter; Described piston rod (7) passes the through hole of described pressing plate (1), described pressing plate (1) be fixed on pedestal (5) above, it is characterized in that, also comprise guard collar (2), described guard collar (2) is arranged between described pressing plate (1) and described pedestal (5), and the inner peripheral surface of described globular hinge head (6) surface and described guard collar (2) fits tightly.
2. supporting leg according to claim 1, is characterized in that, the upper surface of the inner peripheral surface of described guard collar (2) and described guard collar (2) forms sharp shape lip limit (L1), and described sharp shape lip limit (L1) is close on described globular hinge head (6).
3. supporting leg according to claim 2, is characterized in that, the lower surface of the inner peripheral surface of described guard collar (2) and described guard collar (2) forms obtuse lip limit (L2).
4. supporting leg according to claim 3, is characterized in that, the inner peripheral surface of described guard collar (2) is curved surface (S1), and described application of a surface is on described globular hinge head (6).
5. supporting leg according to claim 3, is characterized in that, the inner peripheral surface of described guard collar (2) is the conical surface (S2), the described conical surface and described globular hinge head (6) surperficial tangent.
6. the described supporting leg of according to claim 1 to 5 any one, is characterized in that, is provided with the oil leab that is communicated in groove on described pedestal (5).
7. the described supporting leg of according to claim 1 to 5 any one, is characterized in that, is provided with bearing shell (3) between the groove of described pedestal (5) and globular hinge head (6).
8. the described supporting leg of according to claim 1 to 5 any one, is characterized in that, described guard collar (2) is made by rubber or plastics.
9. a construction machinery and equipment, comprise the construction machinery and equipment body, it is characterized in that, also comprises the described supporting leg of claim 1 to 8 any one, and the cylinder barrel of the telescopic oil cylinder of described supporting leg is connected with described construction machinery and equipment body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673088 CN203005387U (en) | 2012-12-07 | 2012-12-07 | Support leg and engineering machine with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673088 CN203005387U (en) | 2012-12-07 | 2012-12-07 | Support leg and engineering machine with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203005387U true CN203005387U (en) | 2013-06-19 |
Family
ID=48597010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220673088 Expired - Lifetime CN203005387U (en) | 2012-12-07 | 2012-12-07 | Support leg and engineering machine with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203005387U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071727A (en) * | 2014-07-10 | 2014-10-01 | 山东力高升降机械有限公司 | Lifting platform supporting leg |
| CN112172752A (en) * | 2020-08-19 | 2021-01-05 | 上海派杰珂实业有限公司 | Integrated high-precision leveling supporting leg |
| CN112431810A (en) * | 2020-12-02 | 2021-03-02 | 徐州徐工液压件有限公司 | High-reliability multi-angle deviation rectifying hydraulic cylinder |
| CN112923052A (en) * | 2021-02-05 | 2021-06-08 | 神华准格尔能源有限责任公司 | Lockpin and driving oil cylinder |
| CN115075839A (en) * | 2022-07-22 | 2022-09-20 | 山西天地煤机装备有限公司 | Rock boring machine and rock roadway boring method |
-
2012
- 2012-12-07 CN CN 201220673088 patent/CN203005387U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071727A (en) * | 2014-07-10 | 2014-10-01 | 山东力高升降机械有限公司 | Lifting platform supporting leg |
| CN112172752A (en) * | 2020-08-19 | 2021-01-05 | 上海派杰珂实业有限公司 | Integrated high-precision leveling supporting leg |
| CN112431810A (en) * | 2020-12-02 | 2021-03-02 | 徐州徐工液压件有限公司 | High-reliability multi-angle deviation rectifying hydraulic cylinder |
| CN112923052A (en) * | 2021-02-05 | 2021-06-08 | 神华准格尔能源有限责任公司 | Lockpin and driving oil cylinder |
| CN115075839A (en) * | 2022-07-22 | 2022-09-20 | 山西天地煤机装备有限公司 | Rock boring machine and rock roadway boring method |
| CN115075839B (en) * | 2022-07-22 | 2022-11-04 | 山西天地煤机装备有限公司 | Rock tunneling machine and rock roadway tunneling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |