CN216969607U - Landing leg assembly, landing leg and engineering machinery - Google Patents
Landing leg assembly, landing leg and engineering machinery Download PDFInfo
- Publication number
- CN216969607U CN216969607U CN202220390902.0U CN202220390902U CN216969607U CN 216969607 U CN216969607 U CN 216969607U CN 202220390902 U CN202220390902 U CN 202220390902U CN 216969607 U CN216969607 U CN 216969607U
- Authority
- CN
- China
- Prior art keywords
- leg
- arm body
- plate
- cylinder
- supporting
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
The utility model provides a supporting leg assembly, a supporting leg and engineering machinery. The leg assembly includes: the landing leg arm body, landing leg arm body integrated into one piece. Through the technical scheme of this application, landing leg arm body integrated into one piece can effectively prevent the potential safety hazard of welding seam fracture, easy to maintain, and processing is convenient, and material utilization is high.
Description
Technical Field
The application belongs to the technical field of engineering machinery, and particularly relates to a landing leg assembly, a landing leg and engineering machinery.
Background
The supporting legs are of box-type structures, and the top plate/the bottom plate/the left side plate and the right side plate are welded in a splicing mode. The process route has the advantages that the steel plate raw material is low in price, a die is not needed, and the steel plate is directly blanked for welding. However, the support leg has a plurality of welding seams, the welding process is complex, the welding quality is difficult to guarantee, the quality risk of welding seam cracking exists, and meanwhile, the strength and the fatigue life of the welding seams are weakened compared with those of the support leg base metal.
SUMMERY OF THE UTILITY MODEL
Embodiments according to the present application aim to ameliorate at least one of the technical problems of the prior art or the related art.
In view of the above, it is an object according to embodiments of the present application to provide a leg assembly.
It is another object of embodiments according to the present application to provide a leg.
It is a further object of embodiments according to the present application to provide a work machine.
To achieve the above object, an embodiment according to a first aspect of the present application provides a leg assembly, including: the landing leg arm body, landing leg arm body integrated into one piece.
According to the landing leg subassembly that this application provided, including landing leg arm body integrated into one piece, compare with the steel sheet welding, can avoid the risk of welding seam fracture, easy to maintain reduces the process complexity, improves material utilization.
In addition, the technical scheme provided by the application can also have the following additional technical characteristics:
among the above-mentioned technical scheme, the landing leg subassembly still includes: the reinforcing part is arranged on the supporting leg arm body and used for reinforcing the supporting leg arm body.
In this technical scheme, the landing leg subassembly still includes the rib, and the rib is located on the landing leg arm body for strengthen the landing leg arm body. Because the contact area contact stress of landing leg arm body is great, set up the rib on the landing leg arm body, combine through landing leg arm body and rib, can strengthen the landing leg arm body, guarantee the rigidity and the intensity of landing leg subassembly.
Among the above-mentioned technical scheme, the landing leg subassembly still includes: the supporting leg cylinder is connected with one end of the supporting leg arm body in a welding mode.
In this solution, the leg assembly further comprises a leg cylinder. The landing leg cylinder is connected with one end of the landing leg arm body in a welding mode.
Among the above-mentioned technical scheme, the landing leg subassembly still includes: the oil cylinder connecting plate is welded with the supporting leg barrel.
In this technical scheme, the landing leg subassembly still includes the hydro-cylinder connecting plate. The oil cylinder connecting plate is arranged at one end of the supporting leg barrel and is welded with the supporting leg barrel and used for installing the oil cylinder.
In the technical scheme, the support leg arm body comprises a hot-rolled seamless steel pipe; and/or the leg sleeve comprises a hot rolled seamless steel tube.
In the technical scheme, the supporting leg arm body and the supporting leg cylinder can be made of hot-rolled seamless steel pipes, and the proper supporting leg arm body and the proper supporting leg cylinder are obtained by machining the hot-rolled seamless steel pipes. The hot rolling seamless steel pipe can destroy the casting structure of a steel ingot, refine the crystal grains of steel and eliminate the defects of microscopic structure, thereby leading the steel structure to be compact and improving the mechanical property. Wherein the cross section of the hot-rolled seamless steel pipe is rectangular.
Among the above-mentioned technical scheme, the landing leg arm body includes bottom plate, roof and two curb plates, and the both ends of two curb plates are connected with bottom plate, roof integrated into one piece respectively.
In this technical scheme, the landing leg arm body is for enclosing the box structure that forms by bottom plate, roof and two curb plates, and wherein, the both ends of two curb plates are connected with bottom plate, roof integrated into one piece respectively, compares with the steel sheet welding, can avoid the risk of welding seam fracture, and easy to maintain reduces the process complexity, improves material utilization.
In the above technical solution, the reinforcement part includes a first reinforcement plate and a second reinforcement plate; the first reinforcing plate is positioned on the outer side of the side plate and close to the top plate; the second reinforcing plate is positioned on the inner side of the side plate and close to the bottom plate.
In this aspect, the reinforcement portion includes a first reinforcement plate and a second reinforcement plate. Because when operating condition, the roof of landing leg arm body is used for contacting with the curb plate, and contact stress is great, and first reinforcing plate welding is close to roof department in the outside of curb plate to strengthen the landing leg arm body, improve the bearing capacity and the atress performance of landing leg arm body. Because the bottom plate and the slide contact of landing leg arm body afterbody, contact stress is great, and the inboard that the second reinforcing plate welded the curb plate is close to bottom plate department to strengthen the landing leg arm body, improve the bearing capacity and the atress performance of landing leg arm body.
In the technical scheme, one surface of the oil cylinder connecting plate, which is far away from the supporting leg cylinder, is provided with a groove, and the groove is used for installing the oil cylinder; a boss is arranged on one side, close to the supporting leg barrel, of the oil cylinder connecting plate and matched with the supporting leg barrel.
In the technical scheme, one surface of the oil cylinder connecting plate, which is far away from the leg supporting cylinder, is provided with a groove, and the groove is used for installing an oil cylinder, so that the oil cylinder is connected with the leg supporting arm body. And a boss is arranged on one surface of the oil cylinder connecting plate, which is close to the leg cylinder, and the boss is matched with the leg cylinder, so that the oil cylinder connecting plate is connected to the leg cylinder.
According to a second aspect of the present application, there is provided a leg, comprising: an oil cylinder; and a leg assembly according to any one of the first aspect of the present application for supporting a cylinder.
The leg provided by the technical solution of the present application includes the leg assembly according to any one of the technical solutions of the first aspect of the present application, so that the leg assembly has all the advantages of the leg assembly according to any one of the technical solutions of the first aspect of the present application, and details are not described herein again.
According to a third aspect of the present application, there is provided a construction machine including: a leg assembly according to any one of the aspects of the first aspect of the present application; or a leg according to any of the embodiments of the second aspect of the present application.
The engineering machinery provided by the technical scheme of the application comprises the supporting leg assembly according to any one of the technical schemes of the first aspect of the application, so that the engineering machinery has all the beneficial effects of the supporting leg assembly according to any one of the technical schemes of the first aspect of the application, and the description is omitted. Or the engineering machinery provided by the technical scheme of the present application includes the landing leg according to any one of the technical schemes in the second aspect of the present application, so that the engineering machinery has all the beneficial effects of the landing leg according to any one of the technical schemes in the second aspect of the present application, and details are not repeated here.
Additional aspects and advantages of embodiments in accordance with the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the present application.
Drawings
FIG. 1 is a front view schematic illustration of a leg assembly according to one embodiment provided herein;
FIG. 2 is a cross-sectional structural schematic of a leg assembly according to one embodiment provided herein;
FIG. 3 is a cross-sectional structural schematic view of a leg assembly according to yet another embodiment provided herein;
FIG. 4 is a perspective view of a leg arm body according to one embodiment provided herein;
FIG. 5 is a perspective view of a leg sleeve according to one embodiment provided herein;
FIG. 6 is a schematic perspective view of a cylinder connecting plate according to an embodiment of the present disclosure;
FIG. 7 is a schematic perspective view of a cylinder connecting plate according to yet another embodiment of the present disclosure;
FIG. 8 is a perspective view of a leg arm body according to yet another embodiment provided herein.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:
10: a leg assembly; 110: a leg arm body; 120: a leg cylinder; 130: an oil cylinder connecting plate; 140: a first reinforcing plate; 150: a second reinforcing plate; 160: and (4) a groove.
Detailed Description
In order that the above objects, features and advantages of embodiments according to the present application may be more clearly understood, embodiments according to the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that features of embodiments according to the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments according to the present application, however, embodiments according to the present application may be practiced in other ways than those described herein, and therefore the scope of protection afforded by embodiments according to the present application is not limited by the specific embodiments disclosed below.
Some embodiments provided in accordance with the present application are described below with reference to fig. 1-8.
As shown in fig. 1, a leg assembly 10 according to an embodiment of the present application includes a leg arm body 110. Specifically, the leg arm body 110 is integrally formed.
The leg assembly 10 provided according to the present embodiment includes a leg arm body 110. Landing leg arm body integrated into one piece compares with the steel sheet welding, can avoid the risk of welding seam fracture, and easy to maintain reduces the process complexity, improves material utilization.
The leg assembly 10 further includes a reinforcing portion disposed on the leg arm body 110 for reinforcing the leg arm body 110. Because the contact stress of the contact area of the leg arm body 110 is large, the reinforcing part is arranged on the leg arm body 110, and the leg arm body 110 can be reinforced through the combination of the leg arm body 110 and the reinforcing part, so that the rigidity and the strength of the leg assembly 10 are ensured.
As shown in fig. 5 and 6, the leg assembly 10 further includes a leg cylinder 120 and a cylinder connection plate 130. The leg cylinder 120 is connected to one end of the leg arm body 110, and a cylinder connection plate 130 is provided at one end of the leg cylinder for mounting a cylinder.
In the above embodiments, both the leg arm body 110 and the leg cylinder 120 may be made of hot-rolled seamless steel pipes, and the hot-rolled seamless steel pipes are machined to obtain the appropriate leg arm body 110 and leg cylinder 120. The hot rolling seamless steel pipe can destroy the casting structure of a steel ingot, refine the crystal grains of steel and eliminate the defects of microscopic structure, thereby leading the steel structure to be compact and improving the mechanical property. The cylinder connecting plate 130 may be a steel plate, and the leg cylinder 120 and the cylinder are connected by the steel plate, so that the cylinder connecting plate has high strength, high toughness, corrosion resistance, and good welding performance and cold forming performance. Wherein the cross section of the hot-rolled seamless steel pipe is rectangular.
In the above embodiment, the supporting leg arm body 110 is a box-shaped structure surrounded by a bottom plate, a top plate and two side plates, wherein two ends of the two side plates are respectively connected with the bottom plate and the top plate in an integrated manner, and compared with steel plate welding, the supporting leg arm can avoid the risk of weld cracking, is easy to maintain, reduces the complexity of the process, and improves the material utilization rate.
As shown in fig. 2 and 8, further, the reinforcing part includes a first reinforcing plate 140 and a second reinforcing plate 150. Because when the landing leg arm body 110 is in a working state, the top plate of the landing leg arm body 110 is used for contacting with a door plate, the contact stress is large, and the first reinforcing plate 140 is welded at the position, close to the top plate, of the outer side of the side plate, so that the landing leg arm body 110 is reinforced, and the bearing capacity and the stress performance of the landing leg arm body 110 are improved. Because the bottom plate at the tail part of the supporting leg arm body 110 is in contact with the slide way, the contact stress is larger, and the second reinforcing plate 150 is welded at the inner side of the side plate close to the bottom plate, so that the supporting leg arm body 110 is reinforced, and the bearing capacity and the stress performance of the supporting leg arm body 110 are improved.
In other embodiments, the wall thicknesses of the bottom plate, the top plate and the side plates can be the same, compared with the case that the bottom plate, the top plate and the side plates are connected through welding, the strength of a welding seam is required to be improved through enhancing the plate thickness, the strength of the corner of the rectangular steel pipe is determined to be the same as that of other places through the production process of the hot-rolled seamless steel pipe, the thickness is increased, and the strength is improved. The wall thicknesses of the bottom, top and side panels may also be different. By arranging rectangular hot-rolled seamless steel pipes with different wall thicknesses, the process of welding the reinforcing part can be omitted, the rigidity and the strength of the supporting leg assembly 10 are ensured, and the bearing capacity and the stress performance of the supporting leg arm body 110 are improved.
In the above embodiment, the leg arm body 110 is welded to the leg cylinder 120, the leg cylinder 120 is welded to the cylinder connecting plate 130, the leg arm body 110, the leg cylinder 120 and the cylinder connecting plate 130 are welded to form a main structure of a leg, in the leg assembly 10, the leg arm body 110 and the leg cylinder 120 are respectively integrally formed, only a small number of welding seams exist among the leg arm body 110, the leg cylinder 120 and the cylinder connecting plate 130, and the risk of cracking of the welding seams can be reduced.
As shown in fig. 6 and 7, a groove 160 is formed on a side of the cylinder connection plate 130 away from the leg cylinder 120, and the groove 160 is used for mounting the cylinder, so that the cylinder is connected to the leg arm body 110. A boss is provided on a side of the cylinder connection plate 130 adjacent to the leg cylinder 120, and the boss is engaged with the leg cylinder 120, so that the cylinder connection plate 130 is connected to the leg cylinder 120.
According to an embodiment of the present application, a leg includes a cylinder and a leg assembly 10 as described in any of the above embodiments, wherein the leg assembly 10 is used for supporting the cylinder.
The supporting leg provided according to the embodiment of the present application includes the oil cylinder and the supporting leg assembly 10 according to any one of the embodiments, so that the supporting leg has all the advantages of the supporting leg assembly 10 according to any one of the embodiments, and the description thereof is omitted.
According to an embodiment of the application, a construction machine is provided, which comprises the support leg assembly 10 of any one of the embodiments or the support leg of any one of the embodiments.
According to the embodiment of the present application, a construction machine includes the leg assembly 10 according to any one of the embodiments described above or the leg according to any one of the embodiments described above, so that the construction machine has all the advantages of the leg assembly 10 according to any one of the embodiments described above or the leg according to any one of the embodiments described above, and details are not repeated here.
As shown in fig. 1 to 7, according to the leg assembly 10 of one embodiment proposed in the present application, the leg assembly 10 includes a leg arm body 110, a leg cylinder 120, and a cylinder connection plate 130.
As shown in fig. 3 and 4, the high-strength seamless square tube is selected as the raw material of the leg arm body 110, the leg assembly 10 is adjusted, optionally, the rectangular steel tube is 390cm × 180cm × 8cm in specification, and the local contact position welding flitch is used as reinforcement, so that the potential safety hazard of weld cracking can be effectively prevented, the maintenance is easy, the rigidity and the structural strength of the leg can be effectively improved, the processing is convenient, and the material utilization rate is high. The supporting leg arm body 110 is of a box-type structure, and the main body structure of the supporting leg is formed by the supporting leg arm body 110, the supporting leg barrel 120 and the oil cylinder connecting plate 130 through a small amount of welding. The supporting leg arm body 110 and the supporting leg barrel 120 are directly machined by hot-rolled seamless steel pipes (formed by splicing and welding steel plates in the prior art), and the oil cylinder connecting plate 130 is directly machined by steel plates for blanking. The specification of the steel pipe is selected to determine the section of a welding seam, the specification selection principle can be determined through the calculation and optimization result of the supporting leg engineering, and the contact stress of the contact area of the supporting leg is large, so that the contact area of the supporting leg can be reinforced by adding a welding flitch.
To sum up, the beneficial effect of this application embodiment is:
1. the hot-rolled seamless steel pipe is selected to replace steel plate welding, so that the risk of weld cracking can be solved.
2. The hot-rolled seamless steel tube supporting leg belongs to integral forming, and the process complexity is reduced.
3. Originally, the welding seam belongs to the weak link, needs to improve the intensity of welding seam department through the reinforcing plate thickness, and because the production technology of steel pipe decides now, the corner intensity of rectangle steel pipe is the same with other places to thickness increases, and intensity improves.
4. In the later process development of the rectangular steel pipe, the process of plate sticking reinforcement can be omitted by developing the rectangular steel pipes with different wall thicknesses.
In embodiments according to the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments according to the present application can be understood by those of ordinary skill in the art as the case may be.
In the description of the embodiments according to the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description of the embodiments according to the present application, but do not indicate or imply that the devices or units referred to must have specific directions, be configured and operated in specific orientations, and thus, should not be construed as limitations on the embodiments according to the present application.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in accordance with the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment according to the present application, and is not intended to limit the embodiment according to the present application, and various modifications and variations may be made to the embodiment according to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments according to the present application shall be included in the protection scope of the embodiments according to the present application.
Claims (9)
1. A leg assembly, comprising:
a leg arm body (110), the leg arm body (110) being integrally formed;
a reinforcement portion provided on the leg arm body (110) for reinforcing the leg arm body (110).
2. The leg assembly of claim 1, further comprising:
the leg supporting cylinder (120), the leg supporting cylinder (120) and one end of the leg arm body (110) are connected in a welding mode.
3. The leg assembly of claim 2, further comprising:
the oil cylinder connecting plate (130) is connected with the supporting leg barrel (120) in a welding mode.
4. The leg assembly of claim 3,
the leg arm body (110) comprises a hot rolled seamless steel tube; and/or
The leg cylinder (120) comprises a hot-rolled seamless steel pipe.
5. The leg assembly according to any one of claims 1 to 4,
the supporting leg arm body (110) comprises a bottom plate, a top plate and two side plates, wherein two ends of the two side plates are respectively connected with the bottom plate and the top plate in an integrated forming mode.
6. The leg assembly of claim 5,
the reinforcement portion includes a first reinforcement plate (140) and a second reinforcement plate (150);
the first reinforcing plate (140) is positioned outside the side plates and adjacent to the top plate;
the second reinforcing panel (150) is located inside the side panel and adjacent to the bottom panel.
7. The leg assembly of claim 3 or 4,
a groove (160) is formed in one surface, away from the supporting leg barrel (120), of the oil cylinder connecting plate (130), and the groove (160) is used for installing an oil cylinder;
and a boss is arranged on one surface, close to the supporting leg cylinder (120), of the oil cylinder connecting plate (130), and the boss is matched with the supporting leg cylinder (120).
8. A leg, comprising:
an oil cylinder; and
the leg assembly of any one of claims 1 to 7, for supporting the ram.
9. A work machine, comprising:
the leg assembly of any one of claims 1 to 7; or
The leg of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220390902.0U CN216969607U (en) | 2022-02-24 | 2022-02-24 | Landing leg assembly, landing leg and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220390902.0U CN216969607U (en) | 2022-02-24 | 2022-02-24 | Landing leg assembly, landing leg and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216969607U true CN216969607U (en) | 2022-07-15 |
Family
ID=82356278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220390902.0U Active CN216969607U (en) | 2022-02-24 | 2022-02-24 | Landing leg assembly, landing leg and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216969607U (en) |
-
2022
- 2022-02-24 CN CN202220390902.0U patent/CN216969607U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109822198B (en) | Welding process of lightweight new energy all-aluminum passenger car | |
| CN110203284A (en) | A kind of subframe of hollow cast aluminium and aluminum profile welding | |
| KR20130119987A (en) | Automobile frame | |
| CN216969607U (en) | Landing leg assembly, landing leg and engineering machinery | |
| CN103015726A (en) | Box-shaped arm section processing method, box-shaped arm section and concrete pump truck arm frame | |
| CN202072183U (en) | Container | |
| CN110524131B (en) | Welding beam assembly process | |
| CN210818045U (en) | Welding beam | |
| CN209700599U (en) | Assembly is protected under a kind of radiator | |
| CN104527789B (en) | Sub-frame of multi-link suspension system | |
| CN211809477U (en) | Bumper bracket assembly of medium-weight truck | |
| CN211252806U (en) | Special cast aluminum joint for aluminum alloy vehicle body frame structure | |
| CN209159805U (en) | A kind of casting of aluminium alloy plus aluminium alloy extrusions weld five connecting rod Rear secondary frame for vehicle | |
| CN218347414U (en) | Hydraulic support connecting rod and hydraulic support | |
| CN217861193U (en) | Galvanized sheet riveting tool box for trailer | |
| CN111572642A (en) | Front longitudinal beam structure of engine room and automobile | |
| CN214607715U (en) | Electric automobile and cabin upper strata installing support thereof | |
| CN220753609U (en) | New energy battery support and battery pack | |
| CN205652993U (en) | Elevator car's shell structure | |
| CN109760966A (en) | A kind of electric car tank car tank body of light-weight design | |
| CN216101403U (en) | Trailer high-strength air suspension structure | |
| CN217053567U (en) | Rear frame of loader | |
| CN220868330U (en) | Digger loader frame | |
| CN102785858B (en) | Container | |
| CN220254869U (en) | Cabinet sheet metal structure with various transition structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |