A kind of edge beam structure for slewing platform

Abstract

The utility model provides a kind of side beam structure for rotary platform belongs to construction machinery technical field. Including inner strutting plate and outer strutting plate;Inner strutting plate is L type structure, and outer strutting plate is C type structure;L type structure and C type structure are fixed by butt welding, form box structure.The utility model inner strutting plate is L type structure, and outer strutting plate is C type structure;L type structure and C type structure are fixed by butt welding, form box structure, this structure can increase the rigidity and strength of side beam, improve side beam service life and resistance ability, not easy to deform and crack.

Description

Technical Field

[0001] This utility model belongs to the field of construction machinery technology, and in particular relates to a side beam structure for a rotary platform. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In recent years, with increasingly fierce competition in the excavator market and the continuous increase in bucket capacity, excavators are facing greater external forces. As a crucial component connecting the upper and lower parts of the excavator, the slewing platform must also have its structure and strength reinforced. The side beams are key components determining the strength of the slewing platform.

[0004] Existing slewing platform side beams mainly include C-shaped plate side beams and square steel structure side beams. The C-shaped plates have added reinforcing ribs, and the cover installation points are all on the upper surface of the C-shaped plate, fixed by back-welded nuts. However, the C-shaped plate structure side beams have low overall strength, are prone to deformation and cracking, and there is a possibility that the cover frame will pull and crack around the platform side beam installation points. On the other hand, square steel structures are less economical, requiring molds to be made to match the counterweight shape. If the overall machine shape changes, the square steel mold must be adjusted accordingly. Furthermore, many excavator slewing platforms require optional anti-collision beams, which cannot be installed using back-welded nuts on square steel structures. Utility Model Content

[0005] The purpose of this utility model is to provide a side beam structure for a slewing platform. In view of the problems existing in the prior art, an L-shaped structure and a C-shaped structure are welded together to form a box structure, thereby increasing the strength of the side beam. At the same time, by welding and fixing nuts on the inside of the C-shaped structure, the selective installation requirements of the anti-collision beam of the slewing platform can be met.

[0006] To achieve the above objectives, the utility model adopts the following technical solution: This utility model provides a side beam structure for a rotary platform, including an inner support plate and an outer support plate; the inner support plate is an L-shaped structure and the outer support plate is a C-shaped structure; the inner support plate and the outer support plate are fixed by interlocking welding.

[0007] In one embodiment, the L-shaped structure includes a first long side beam and a first short side beam, wherein the first long side beam and the first short side beam are fixed perpendicularly.

[0008] In one embodiment, the C-shaped structure includes a second long side beam, a middle side beam, and a second short side beam, wherein the second long side beam and the second short side beam are perpendicularly fixed to the same side of the middle side beam.

[0009] In one embodiment, a fixing nut is welded onto the middle side beam, and the nut is used to cooperate with bolts to fix the anti-collision beam.

[0010] In one embodiment, a fixing hole is provided at a set position on the middle side beam, and the fixing nut is welded to the fixing hole.

[0011] In one implementation, a fixing nut is fixed inside the C-shaped structure.

[0012] In one embodiment, the outer side of the first short beam is fixedly connected to the inner side of the second short beam; the end face of the first short beam is fixedly connected to the middle surface.

[0013] In one implementation, the end face of the first long side beam is fixedly connected to the top surface of the second long side beam.

[0014] In one implementation, the first short side beam is shorter than the second long side beam by a set distance.

[0015] In one implementation, both the inner support plate and the outer support plate are bent components.

[0016] The technical solution of this utility model has the following beneficial effects: 1. The inner support plate of this utility model is an L-shaped structure, and the outer support plate is a C-shaped structure; the L-shaped structure and the C-shaped structure are fastened and welded together to form a box structure. This structure can increase the rigidity and strength of the side beam, improve the service life and impact resistance of the side beam, and make it less prone to deformation and cracking.

[0017] 2. This utility model achieves a detachable connection between the anti-collision beam and the side beam by fixing the fixing nut inside the C-shaped structure, thus meeting the selection needs of different customers.

[0018] The advantages of this invention in additional aspects 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 the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of the side beam of this utility model.

[0021] Figure 2 This is a schematic diagram of the internal support plate structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the external support plate structure of this utility model.

[0023] Figure 4This is a schematic diagram of the installation of the anti-collision beam and the side beam of this utility model.

[0024] Figure 5 This is a schematic diagram of the installation of the side beam of this utility model.

[0025] Among them, 1. Side beam, 2. Inner support plate, 21. First long side beam, 22. First short side beam, 3. Outer support plate, 31. Second long side beam, 32. Middle side beam, 33. Second short side beam, 4. Fixing nut, 5. Anti-collision beam, 6. Cab mounting plate, 7. Air filter compartment bottom plate, 8. M16 screw seat, 9. Front baffle, 10. Radiator bottom plate, 11. Rear baffle. Detailed Implementation

[0026] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this utility model.

[0028] This embodiment provides a side beam structure for a rotary platform, such as... Figure 1 As shown, it includes an inner support plate 2 and an outer support plate 3; the inner support plate 2 is an L-shaped structure and the outer support plate 3 is a C-shaped structure; the L-shaped structure and the C-shaped structure are welded together to form a box structure. This structure can increase the stiffness and strength of the side beam 1, improve the service life and impact resistance of the side beam 1, and prevent deformation and cracking.

[0029] The mounting points of the cover are made of 16mm thick plates welded separately to the side of the side beam 1, so that the cover frame is not easy to deform or crack the side beam 1.

[0030] In a specific implementation, both the outer support plate 3 and the inner support plate 2 are bent parts.

[0031] In specific implementation methods, such as Figure 2 As shown, the L-shaped inner support plate 2 includes a first long side beam 211 and a first short side beam 221, with the first long side beam 211 and the first short side beam 221 fixed perpendicularly to each other. Figure 3As shown, the C-shaped outer support plate 3 includes a second long side beam 311, a middle side beam 321, and a second short side beam 331. The second long side beam 311 and the second short side beam 331 are vertically fixed to the same side of the middle side beam 321. The outer side of the first short side beam 221 is fixedly connected to the inner side of the second short side beam 331; the end face of the first short side beam 221 is fixedly connected to the middle surface. The end face of the first long side beam 211 is fixedly connected to the top surface of the second long side beam 311. The first short side beam 221 is shorter than the second long side beam 311 by a predetermined distance, which is the welding area, and is sequentially welded to the bottom of the cab mounting plate 6, the bottom of the air filter compartment bottom plate 7, the bottom of the front baffle 9, the bottom of the radiator bottom plate 10, and the bottom of the rear baffle 11.

[0032] like Figure 5 As shown, the outer side of the first long side beam 211 of the L-shaped structure is sequentially welded to the side of the cab mounting plate 6, the side of the air filter compartment floor plate 7, the side of the front baffle 9, the side of the radiator floor plate 10, and the side of the rear baffle 11. The length of both ends of the outer support plate 3 is greater than that of the inner support plate 2. The portion of the outer support plate 3 that extends beyond the inner support plate 2 is the welding area, which is sequentially welded to the top of the cab mounting plate 6, the top of the air filter compartment floor plate 7, the top of the front baffle 9, the top of the radiator floor plate 10, and the top of the rear baffle 11. The M16 threaded seat 8 is used to fix the radiator floor plate 10.

[0033] This invention increases the length of the effective weld seam of the overall side beam 1 through the above-mentioned solution, thereby increasing its stability.

[0034] In specific implementation methods, such as Figure 4 As shown, a fixing nut 4 is welded onto the middle side beam 321, and the fixing nut 4 is fixed inside the C-shaped structure. The nut is used to cooperate with bolts to fix the anti-collision beam 5. Fixing holes are opened at designated positions on the middle side beam 321, and the fixing nut 4 is welded to the fixing holes. Through the cooperation of bolts and fixing nut 4, the anti-collision beam 5 and the side beam 1 are detachably fixed. The anti-collision beam 5 can be selected according to customer needs. If the customer needs it, the anti-collision beam 5 can be installed before shipping the whole machine. If not, the opening of the fixing nut 4 can be plugged with a rubber plug to improve the versatility of the platform. If the side beam 1 is welded into a square steel form, the nut cannot be welded on the inside. If the customer needs the anti-collision beam 5, it needs to be welded onto the side beam 1. In this case, the platform with the anti-collision beam 5 and the platform without the anti-collision beam 5 will be two separate platforms, which has poor versatility and is difficult to modify after leaving the factory. In addition, welding the anti-collision beam requires additional welding time. With the structure of this utility model, when customers select the anti-collision beam 5, it can be directly installed on the side beam 1 without submitting a new rotary platform.

[0035] Working principle of this utility model: The inner support plate 2 of this utility model has an L-shaped structure, and the outer support plate 3 has a C-shaped structure. The outer support plate 3 and the inner support plate 2 are fastened and welded together to form a box structure. This structure can increase the rigidity and strength of the side beam 1, improve the service life and impact resistance of the side beam 1, and make it less prone to deformation and cracking. At the same time, the fixing nut 4 is fixed to the inside of the C-shaped structure, realizing the detachable fixing of the anti-collision beam 5 and the side beam 1, which can meet the selection needs of different customers.

[0036] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A side beam structure for a rotary platform, characterized in that, It includes an inner support plate and an outer support plate; the inner support plate has an L-shaped structure and the outer support plate has a C-shaped structure; the inner support plate and the outer support plate are fastened together by welding.

2. The side beam structure for a rotary platform as described in claim 1, characterized in that, The L-shaped structure includes a first long side beam and a first short side beam, with the first long side beam and the first short side beam fixed perpendicularly to each other.

3. The side beam structure for a rotary platform as described in claim 2, characterized in that, The C-shaped structure includes a second long side beam, a middle side beam, and a second short side beam. The second long side beam and the second short side beam are perpendicularly fixed to the same side of the middle side beam.

4. The side beam structure for a rotary platform as described in claim 3, characterized in that, Nuts are welded to the middle side beam and are used to fix the anti-collision beam with bolts.

5. The side beam structure for a rotary platform as described in claim 4, characterized in that, A fixing hole is provided at a predetermined position on the middle side beam, and the fixing nut is welded to the fixing hole.

6. The side beam structure for a rotary platform as described in claim 4, characterized in that, The fixing nut is fixed inside the C-shaped structure.

7. The side beam structure for a rotary platform as described in claim 3, characterized in that, The outer side of the first short side beam is fixedly connected to the inner side of the second short side beam; the end face of the first short side beam is fixedly connected to the middle face.

8. The side beam structure for a rotary platform as described in claim 3, characterized in that, The end face of the first long side beam is fixedly connected to the top face of the second long side beam.

9. A side beam structure for a rotary platform as described in claim 3, characterized in that, The first short side beam is shorter than the second long side beam by a set distance.

10. A side beam structure for a rotary platform as described in claim 1, characterized in that, Both the inner and outer support plates are bent components.

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