Swinging support leg, support leg assembly and engineering machine

Abstract

The utility model relates to the technical field of engineering machinery, disclose a swing support leg, support leg subassembly and engineering machinery, swing support leg is connected with the frame through the chassis, swing support leg includes support leg body and installation subassembly, the inside of support leg body has the oil storage cavity of oil storage, to supply oil material to the engine. Installation subassembly includes the first installation part and the second installation part of two ends along the length direction of being connected to support leg body, first installation part rotatably connected on the chassis, first installation part and the second installation part all are set up on and have the access hole, the access hole is used for the weld of the operator to overhaul support leg body and is oriented to the corresponding installation part upper end face, do not need like the destructive opening maintenance of support leg body in the prior art, reduced maintenance cost and maintenance risk, solved the technical problem of inconvenient swing support leg maintenance in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, specifically relating to a swing outrigger, an outrigger assembly, and engineering machinery. Background Technology

[0002] The outriggers of a concrete pump truck are one of its key load-bearing components. For a pump truck, the outriggers are connected to the underframe via pins, and their swing is achieved through the extension and retraction of a swing cylinder. The other end transmits force to the support surface through the extension and retraction of a vertical hydraulic cylinder. To improve space utilization, existing outriggers have a closed cavity for storing fuel, which can be used to supply fuel to the pump truck's engine. However, during the use of the pump truck, due to improper operation or exceeding the specified service life, the sealed welds on the walls of the closed cavity of the outriggers may fail to maintain their seal, easily leading to fuel leakage. When the weld requiring repair is located in a concealed position, destructive opening repairs of the outriggers are necessary, increasing maintenance costs and risks. Therefore, existing outrigger technology presents a technical problem of inconvenient maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide a swing outrigger, outrigger assembly, and engineering machinery to solve the technical problem of inconvenient maintenance of swing outriggers in the prior art.

[0004] To achieve the above objectives, this utility model provides a swing outrigger, which is connected to the vehicle frame via a base frame. The swing outrigger comprises: The outrigger body has an internal oil reservoir for storing oil. The mounting assembly includes a first mounting part and a second mounting part, which are respectively connected to the two ends of the outrigger body along the length direction. The first mounting part is rotatably connected to the base frame. Both the first mounting part and the second mounting part are provided with inspection ports for operators to inspect the welds on the end faces of the outrigger body facing the corresponding mounting part.

[0005] In an embodiment of this utility model, the outrigger body is a closed box structure with an oil storage cavity inside the box. The outrigger body includes a top plate, a bottom plate, and a side plate surrounding the bottom plate and the top plate. The two side plates of the outrigger body along the length direction are a first side plate and a second side plate, respectively. The first mounting part is spliced ​​with the first side plate, and the inspection port on the first mounting part is opened on one of the walls of the first mounting part.

[0006] In an embodiment of this utility model, the second mounting part is a box structure and is spliced ​​with the second side plate, and the inspection port on the second mounting part is opened on one of the walls of the second mounting part.

[0007] In an embodiment of this utility model, the first mounting part includes two ear plates arranged at intervals along the height direction and a vertical plate connected between the two ear plates. The vertical plate is arranged parallel to and at intervals with the first side plate, and an inspection port is provided on the vertical plate.

[0008] In an embodiment of this utility model, the support leg body is provided with multiple cleaning ports spaced apart along its length, and each cleaning port is provided with a sealing element to seal the cleaning port.

[0009] In an embodiment of this utility model, the cross-sectional area of ​​the outrigger body is gradually reduced along the direction away from the base frame.

[0010] In an embodiment of this utility model, a shield can be detachably connected to the inspection port, and the shield is used to block the inspection port.

[0011] In an embodiment of this utility model, a support leg assembly is also proposed, including the swinging support leg as described above. The support leg assembly also includes a telescopic support leg and a base frame. The base frame is connected to both the telescopic support leg and the swinging support leg. The swinging support leg can swing relative to the base frame, and the telescopic support leg can telescopically move relative to the base frame.

[0012] In an embodiment of this utility model, the base frame includes a base frame body and a swinging part and an insertion part arranged circumferentially along the base frame body. The swinging part is pivotally connected to the swinging support leg, and the insertion part has an insertion interface for the telescopic support leg to be inserted. The swinging part, the insertion part and the base frame body are integrally connected.

[0013] In an embodiment of this utility model, an engineering machine is also proposed, including the outrigger assembly as described above.

[0014] Through the above technical solutions, the swing outrigger, outrigger assembly, and engineering machinery provided by the embodiments of this utility model have the following beneficial effects: The swing outrigger of this application is connected to the vehicle frame via a base frame. The swing outrigger includes an outrigger body and a mounting assembly. The outrigger body has an oil reservoir for storing oil to supply oil to the engine. The mounting assembly includes a first mounting portion and a second mounting portion connected to both ends of the outrigger body along its length. The first mounting portion is rotatably connected to the base frame. Both the first and second mounting portions have access ports for operators to inspect the welds on the upper surface of the outrigger body facing the corresponding mounting portion. This eliminates the need for destructive opening repairs of the outrigger body as in the prior art, reducing maintenance costs and risks, and solving the technical problem of inconvenient maintenance of swing outriggers in the prior art.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the support leg assembly according to the present invention; Figure 2 This is a schematic diagram of the swing support leg from one perspective according to the present invention; Figure 3 This is a schematic diagram of the swing support leg from another perspective according to this utility model; Figure 4 This is a schematic diagram of the structure of the first mounting part according to the present invention; Figure 5 This is a structural schematic diagram of the second mounting part according to the present invention.

[0017] Explanation of reference numerals in the attached figures Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] The swing outrigger, outrigger assembly, and engineering machinery according to the present invention are described below with reference to the accompanying drawings.

[0020] like Figure 1As shown, this embodiment proposes a swing outrigger. The swing outrigger is connected to the vehicle frame via a base frame 10. The swing outrigger includes an outrigger body 1 and a mounting assembly. The outrigger body 1 has an oil reservoir for storing oil to supply oil to the engine. The mounting assembly includes a first mounting portion 21 and a second mounting portion 22 located at both ends of the outrigger body 1 along its length. The first mounting portion 21 is rotatably connected to the base frame 10. A telescopic cylinder 30 is mounted on the second mounting portion 22 to support it. Both the first mounting portion 21 and the second mounting portion 22 have inspection ports 3 for operators to inspect the welds on the upper surface of the outrigger body 1 facing the corresponding mounting portion. This eliminates the need for destructive opening repairs of the outrigger body 1 as in the prior art, reducing maintenance costs and risks, and solving the technical problem of inconvenient maintenance of swing outriggers in the prior art. The welds are formed during the machining of the outrigger body 1 from sheet metal into a box-shaped structure. Multiple welds are formed at both ends of the outrigger body 1 along its length, such as... Figure 4 , Figure 5 The four arrows in the middle point to the weld seam.

[0021] In existing technologies, when internal weld leaks occur in the swing outrigger, the leak point cannot be determined. The only repair method is usually to repeatedly drill holes in the swing outrigger's housing for inspection and welding repairs, followed by patching the holes after repair. This method of drilling holes without determining the location and the welding repair operations both damage the integrity of the original swing outrigger structure, and the welded area may also become a new potential hazard area. However, with the swing outrigger embodiment of this application, destructive operations such as drilling and patching can be effectively avoided, ensuring the structural integrity and aesthetics of the swing outrigger.

[0022] Furthermore, in existing swing outrigger technology, when a leak occurs, the weld seam is often covered or located in a difficult-to-observe position, making it impossible for maintenance personnel to directly pinpoint the leak point. They are forced to rely on experience or use destructive methods (such as large-area drilling) for inspection, sometimes even resorting to blind repairs of the entire weld seam. However, with the swing outrigger of this application, maintenance personnel can directly visually inspect the leak point through the inspection port 3 or use simple tools (such as a reflector). This avoids ineffective large-area destructive drilling and blind repairs, enabling precise leak repair, shortening fault diagnosis and repair time, improving maintenance efficiency, reducing additional costs caused by over-repair of the swing outrigger, and preventing potential damage.

[0023] like Figure 3 , Figure 4 and Figure 5As shown, in this embodiment, the outrigger body 1 is a closed box structure with an oil storage chamber inside. The outrigger body 1 is also equipped with an oil inlet and an oil outlet. The oil inlet is used to supply oil into the oil storage chamber, and the oil outlet is connected to the engine via a pipeline to supply oil to the engine. The oil storage chamber of the outrigger body 1 serves as a backup oil storage chamber. The positions of the oil inlet and outlet can be set according to actual needs. The outrigger body 1 includes a top plate, a bottom plate, and side plates surrounding the bottom plate and the top plate. The two side plates along the length direction of the outrigger body 1 are a first side plate 11 and a second side plate 12, respectively. A first mounting part 21 is spliced ​​with the first side plate 11. An inspection port 3 on the first mounting part 21 is opened on one of the walls of the first mounting part 21. The inspection port 3 on the first mounting part 21 is correspondingly arranged with the first side plate 11 for convenient maintenance. Of course, the inspection port 3 can also be opened on the front or rear side along the width direction, or on the top or bottom along the height direction.

[0024] Operators can directly observe the four welds on one side of the outrigger body 1 through the inspection port 3 on the first installation section 21, thus enabling targeted maintenance. Figure 3 To make it easier to see the first side panel 11 and the second side panel 12, one side panel has been omitted.

[0025] like Figure 5 As shown, in this embodiment, the second mounting part 22 is a box structure and is spliced ​​with the second side plate 12. Since a telescopic cylinder 30 is provided at the end of the second mounting part 22 opposite to the support leg body 1, to avoid interference between the inspection port 3 and the telescopic cylinder 30, the inspection port 3 on the second mounting part 22 is opened on one of the walls of the second mounting part 22, preferably on the front side along the width direction, for convenient maintenance. Operators can directly observe the four welds on the other side of the support leg body 1 through the inspection port 3 on the second mounting part 22, thus enabling targeted maintenance. The inspection port 3 can also be opened on the rear side along the width direction, or on the top or bottom along the height direction. During maintenance, obstructions and interference must be removed. The size of the inspection port 3 can be adjusted according to actual needs. The inspection port 3 is usually a rounded rectangle, circle, rectangle, etc., but can also be an irregularly shaped hole, with a width direction of... Figure 5 The front and back directions in the middle.

[0026] like Figure 4As shown, in this embodiment, the first mounting part 21 includes two ear plates 211 spaced apart along the height direction and a vertical plate 212 connected between the two ear plates 211. The vertical plate 212 and the ear plates 211 can be connected by welding, resulting in high structural stability. The vertical plate 212 is arranged parallel to and spaced apart from the first side plate 11. An inspection port 3 is provided on the vertical plate 212, allowing for direct observation of the welds on the outrigger body 1, facilitating maintenance by operators. Operators can use tools such as welding torches and grinders to directly insert into the inspection port 3 and reach the welds to complete grinding and welding. Each ear plate 211 has an insertion hole for a pin shaft to pass through. The pin shaft is connected to a swing cylinder, and the swing is achieved by the extension and retraction of the swing cylinder. The height direction is... Figure 4 The up and down directions in the middle.

[0027] like Figure 2 and Figure 3 As shown, in this embodiment, the outrigger body 1 is also provided with multiple cleaning ports 13 spaced apart along its length. The number of cleaning ports 13 can be set according to actual needs. Each cleaning port 13 is correspondingly provided with a sealing element to seal the cleaning port 13. The sealing element is detachably installed on the outrigger body 1. When the swinging outrigger is working normally, the sealing element can seal the cleaning port 13 to prevent oil leakage. When it is necessary to clean the oil storage chamber, the sealing element can be removed from the cleaning port 13, and the oil storage chamber can then be cleaned. The sealing element can be a flange as in the prior art, with its length direction being... Figure 2 The left and right directions in the middle.

[0028] like Figure 2 and Figure 3 As shown, in this embodiment, the cross-sectional area of ​​the outrigger body 1 is gradually reduced in the direction away from the base frame 10 to reduce the force on the connection between the swing outrigger and the base frame 10, and to avoid the situation where the connection between the swing outrigger and the base frame 10 breaks or is damaged before the telescopic cylinder 30 is fully extended due to excessive load on the swing outrigger.

[0029] In this embodiment, a shield can also be detachably connected to the inspection port 3. The shield is used to block the inspection port 3 to prevent foreign objects from entering the swing out leg through the inspection port 3 during normal use. When maintenance is required, the shield can be easily removed from the inspection port 3 to facilitate the operator to inspect the welds on the out leg body 1.

[0030] In this embodiment, a support leg assembly is also proposed, including the swinging support leg as described above. The support leg assembly also includes a telescopic support leg 20 and a base frame 10. The base frame 10 is connected to both the telescopic support leg 20 and the swinging support leg. The swinging support leg can swing relative to the base frame 10, and the telescopic support leg 20 can telescopically move relative to the base frame 10. The telescopic support leg 20 includes a multi-section telescopic arm with nested telescopic sections. A telescopic cylinder 30 is also installed on the telescopic arm located at the end furthest from the base frame 10, and the telescopic cylinder 30 supports the telescopic support leg 20. Specifically, in this application, the support leg assembly contains two swinging support legs and two telescopic support legs 20, ensuring that the construction machinery equipped with the support leg assembly can be stably supported on the ground. The number of swinging support legs and two telescopic support legs 20 can be adjusted according to actual needs.

[0031] like Figure 1 As shown, in this embodiment, the base frame 10 includes a base frame body 101 and a swinging part 102 and an insertion part 103 arranged circumferentially along the base frame body 101. The swinging part 102 is pivotally connected to the swinging support leg, and the insertion part 103 has an insertion interface for the telescopic support leg 20 to be inserted. The swinging part 102, the insertion part 103 and the base frame body 101 are integrally connected, and the structure has good stability.

[0032] In this embodiment, an engineering machine is also proposed, including the outrigger assembly described above. Since the engineering machine adopts all embodiments of the outrigger assembly in this application, it also has all the beneficial effects of the outrigger assembly, which will not be described in detail here.

[0033] In the description of this utility model, it should be understood that the terms "first," "second," "first mounting part," and "second mounting part" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," "first mounting part," and "second mounting part" may explicitly or implicitly include at least one of those features. For example, adding a first mounting part, increasing the length and width of a second mounting part, or adding an internal partition, etc., still refers to the "first mounting part" and "second mounting part." In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A swing outrigger, connected to a vehicle frame via a base frame (10), characterized in that, The swing outrigger includes: The outrigger body (1) has an oil storage chamber for storing oil inside; The mounting assembly includes a first mounting part (21) and a second mounting part (22) respectively connected to both ends of the outrigger body (1) along the length direction. The first mounting part (21) is rotatably connected to the base frame (10). Both the first mounting part (21) and the second mounting part (22) are provided with inspection ports (3). The inspection ports (3) are used for operators to inspect the welds on the end faces of the outrigger body (1) facing the corresponding mounting parts.

2. The swing outrigger according to claim 1, characterized in that, The outrigger body (1) is a closed box structure and the oil storage cavity is formed inside the box. The outrigger body (1) includes a top plate, a bottom plate and a side plate surrounding the bottom plate and the top plate. The two side plates of the outrigger body (1) along the length direction are a first side plate (11) and a second side plate (12). The first mounting part (21) is spliced ​​with the first side plate (11). The inspection port (3) on the first mounting part (21) is opened on one of the walls of the first mounting part (21).

3. The swing outrigger according to claim 2, characterized in that, The second mounting part (22) is a box structure and is spliced ​​with the second side plate (12). The inspection port (3) on the second mounting part (22) is opened on one of the walls of the second mounting part (22).

4. The swing outrigger according to claim 2, characterized in that, The first mounting part (21) includes two ear plates (211) arranged at intervals along the height direction and a vertical plate (212) connected between the two ear plates (211). The vertical plate (212) is arranged parallel to and at intervals with the first side plate (11), and the inspection port (3) is provided on the vertical plate (212).

5. The swing outrigger according to any one of claims 1 to 4, characterized in that, The support leg body (1) is also provided with a plurality of cleaning ports (13) spaced apart along the length direction, and a sealing element is arranged at each cleaning port (13) to seal the cleaning port (13).

6. The swing outrigger according to any one of claims 1 to 4, characterized in that, The cross-sectional area of ​​the outrigger body (1) is gradually reduced in the direction away from the base frame (10).

7. The swing outrigger according to any one of claims 1 to 4, characterized in that, A shield can also be detachably connected to the inspection port (3), and the shield is used to cover the inspection port (3).

8. A support leg assembly, characterized in that, The support includes a swing leg according to any one of claims 1 to 7, and the support leg assembly further includes a telescopic leg (20) and a base frame (10), the base frame (10) being connected to both the telescopic leg (20) and the swing leg, the swing leg being able to swing relative to the base frame (10), and the telescopic leg (20) being able to telescopically move relative to the base frame (10).

9. The outrigger assembly according to claim 8, characterized in that, The base frame (10) includes a base frame body (101) and a swing part (102) and a insertion part (103) arranged circumferentially along the base frame body (101). The swing part (102) is pivotally connected to the swing support leg. The insertion part (103) has an insertion interface for the telescopic support leg (20) to be inserted. The swing part (102) and the insertion part (103) are integrally connected to the base frame body (101).

10. An engineering machinery, characterized in that, Includes the outrigger assembly according to any one of claims 8 to 9.

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