Bridge support for loading machine and loading machine

Abstract

The utility model relates to the technical field of engineering machinery, and provides a loading machine bridge support and a loading machine, the loading machine bridge support comprises a fixing plate, a vertical plate is vertically fixed on one side of the fixing plate, and the other adjacent side of the fixing plate is fixedly connected with a tail plate; the rear end of the vertical plate is fixed on the upper surface of the tail plate; a protruding plate is vertically fixed to the tail plate, the protruding plate and the vertical plate are located on the same side, and the protruding plate and the vertical plate are arranged in a staggered mode. The top end of the vertical plate is of a sharp corner structure, and the protruding plate is of an arc-shaped structure. The welding length of the axle support and the inner side and the outer side of the side plate of the front frame is increased, and the fixing effect of the front frame and the drive axle is enhanced; the whole bridge support is manufactured by adopting a casting process, is suitable for a low-temperature environment and does not have welding seams, so that the bridge support is higher in structural strength, better in stability, longer in service life and better in stress resistance effect.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a bridge support for a loader and a loader. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] In the field of engineering machinery technology, the bridge support is a structure that realizes the fixed connection between the front frame and the drive axle of the loader. During the operation of the loader, the materials, bucket, boom, etc. will generate compressive stress, and the bridge support will be subjected to complex mechanical effects. Its fixing effect directly affects the stability between the front frame and the drive axle. The bridge supports in the prior art, such as patents CN204368275U and CN219638009U, although the bridge support structures disclosed in the two can realize the fixed connection between the front frame and the drive axle, are only directly welded to the front frame through one side of the bridge support, the welding area is limited, the fixing effect is poor, and under extreme mechanical effects, there are safety hazards over time. Utility Model Content

[0004] The utility model aims to provide a bridge support for a loader and a loader, so as to solve the problem in the prior art that the fixing effect of the front frame and the driving axle through the bridge support is not good.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The first aspect of the utility model provides a bridge support for a loader, comprising a fixed plate, a vertical plate is vertically fixed to one side of the fixed plate, and the other adjacent side is fixedly connected to the tail plate; the rear end of the vertical plate is fixed to the upper surface of the tail plate; a convex plate is vertically fixed to the tail plate, the convex plate is on the same side as the vertical plate, and is staggered with the vertical plate; the top end of the vertical plate is a pointed structure, and the convex plate is an arc structure.

[0007] Furthermore, the fixing plate is also provided with a plurality of mounting holes.

[0008] Furthermore, the fixing plate is also provided with a first rib plate and a second rib plate in parallel.

[0009] Furthermore, two adjacent side surfaces of the first rib plate are respectively fixedly connected to the fixed plate and the vertical plate; and two adjacent side surfaces of the second rib plate are also respectively fixedly connected to the fixed plate and the vertical plate.

[0010] Furthermore, the size of the first rib is larger than that of the second rib.

[0011] Furthermore, the top surface of the first rib plate is a concave curved surface.

[0012] Further, the overlapping part of the fixing plate and the first rib plate is a notch, making the back of the first rib plate hollow.

[0013] Further, the second rib plate is a solid structure, and its top surface is a concave curved surface.

[0014] Further, the pointed corner structure includes two hypotenuses, namely the first hypotenuse and the second hypotenuse, and the included angle between the two hypotenuses is a set angle.

[0015] Further, the rear end of the tail plate is bent.

[0016] In the second aspect of the present utility model, a loader is provided, and the bridge support described in the first aspect is used to fix the front frame and the drive axle of the loader.

[0017] The technical solution of the present utility model has the following beneficial effects:

[0018] 1. Compared with the prior art, the bridge support of the present utility model increases the welding area between the bridge support and the inner and outer sides of the front frame side plate through the pointed corner structure of the vertical plate and the arc structure of the convex plate, enhancing the fixing effect between the front frame and the drive axle.

[0019] 2. The first rib plate and the second rib plate of the bridge support of the present utility model realize the fixed connection between the fixing plate and the vertical plate, ensuring the structural strength of the connection between the fixing plate and the vertical plate. At the same time, the first rib plate is a back cavity structure, reducing the overall weight of the bridge support.

[0020] 3. Compared with the bridge support composed of welded parts in the prior art, the bridge support of the present utility model is integrally made by casting process without welds. Therefore, the bridge support itself has higher structural strength, better stability, longer service life, and better stress resistance effect.

[0021] The advantages of the additional aspects of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Figure 1 It is the overall schematic diagram of the bridge support of the present utility model.

[0024] Figure 2 It is the overall schematic diagram of the bridge support of the present utility model from another angle.

[0025] Figure 3This is a schematic diagram of the bottom of the bridge support of the present utility model.

[0026] Figure 4 This is a schematic diagram of a partial tail plate of the bridge support of the present utility model.

[0027] Markings in the figure: 1. Fixed plate, 2. Vertical plate, 21. Sharp corner structure, 211. First hypotenuse, 212. Second hypotenuse, 3. Tail plate, 31. Tail plate cross-section, 4. Convex plate, 41. Arc structure, 42. Long strip convex platform, 5. First rib plate, 6. Second rib plate, 7. Mounting hole. Detailed implementation manners

[0028] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further descriptions of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0029] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present utility model.

[0030] Without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0031] Embodiment 1

[0032] This embodiment discloses a bridge support for a loader, as Figure 1 shown, including a fixed plate 1, a vertical plate 2 is vertically fixed on one side of the fixed plate 1, and the adjacent other side is fixedly connected to a tail plate 3; the rear end of the vertical plate 2 is fixed on the upper surface of the tail plate 3; a plurality of mounting holes 7 are also provided on the fixed plate.

[0033] A convex plate 4 is vertically fixed on the tail plate 3, the convex plate 4 is on the same side as the vertical plate 2 and is arranged staggeredly with the vertical plate 2.

[0034] In some implementation manners, the vertical plate 2 is vertically fixed on the fixed plate 1, and the intersection angle of the intersecting walls at the front end of one side of the fixed plate 1 and the vertical plate 2 is fixed by arc transition, and this arc is a casting fillet, the purpose of which is to prevent defects such as sand adhesion, shrinkage cavity and cracks due to stress concentration at the intersection angle of the casting; the adjacent other side of the fixed plate 1 is fixedly connected to the tail plate 3, the front end of the tail plate 3 is upturned and bent downward compared with the fixed plate 1 to form a set radian, and the rear end of the tail plate 3 is bent to facilitate the transmission of stress, thereby improving the service life of the front frame and enhancing the working life of the whole vehicle.

[0035] As Figure 4As shown, the tail plate 3 also has a tail plate section 31 at the rear, and the tail plate section 31 is butted with the supporting cross plate chamfered at a certain angle on the inner side of the front frame side plate and then connected by groove welding and fillet welding. It should be noted that the chamfer in this application can be opened by those skilled in the art according to actual conditions, and the welding method can also be changed according to actual needs, as long as the tail plate section 31 of the bridge support can be fixed to the supporting cross plate of the front frame side plate.

[0036] The convex plate 4 is vertically fixed on the tail plate 3 on the same side as the vertical plate 2 . The convex plate and the vertical plate 2 are staggered, and the spacing between them is the thickness of the vertical plate 2 .

[0037] In some embodiments, Figure 2 As shown, the top of the vertical plate 2 is a pointed structure 21, which includes two oblique edges, the first oblique edge 211 away from the tail plate 3, and the second oblique edge 212 close to the tail plate 3; the bottom of the second oblique edge 212 is connected to the arc structure 41 of the convex plate 4 after passing through the tail plate 3, and the connection between the second oblique edge 212 and the arc structure 41 does not exceed the highest point of the arc structure 41; the first oblique edge 211 is consistent with the inclination angle of the side plate. In some embodiments, the angle between the first oblique edge 41 and the second oblique edge 42 can be 100°.

[0038] The pointed structure 21 is connected to the side panel of the front frame by fillet welding, and the top surface of the second bevel 212 is connected to the edge of the side panel close to the front cover of the front frame by fillet welding. The pointed structure increases the welding area between the bridge support and the front frame, thereby enhancing the fixing effect of the bridge support.

[0039] In some embodiments, the side of the protruding plate 4 facing the tail plate 3 is the front side, and the side opposite thereto is the rear side. The front side of the protruding plate 4 is a flat structure, which is convenient for it to fit closely with the inner side of the front frame side plate and be connected by fillet welding, such as Figure 2 As shown, the convex plate 4 is an arc-shaped structure 41, which can increase the welding area and enhance the fixing effect. The rear of the convex plate 4 is also a flat structure, such as Figure 3 - Figure 4 As shown, the bottom end of the planar structure is provided with a protruding strip boss 42, and the strip boss 42 is connected to the steering cylinder support by fillet welding. The convex plate 4 adapts to the shape of the tail plate 3 and is fixedly connected thereto.

[0040] In some embodiments, the fixed plate 1 is further provided with a first rib plate 5 and a second rib plate 6, the first rib plate 5 and the second rib plate 6 are arranged in parallel, and the two adjacent side surfaces of the first rib plate 5 are respectively fixedly connected to the fixed plate 1 and the vertical plate 2; the two adjacent side surfaces of the second rib plate 6 are also respectively fixedly connected to the fixed plate 1 and the vertical plate 2. The first rib plate 5 and the second rib plate 6 are connected with the intersection angles of the intersecting walls of the fixed plate 1 and the vertical plate 2 by arc transition. The top surface of the first rib plate 5 is a concave curved surface, such as Figure 3As shown, there is a notch with the same width as the first rib plate 5 in the overlapping part of the fixing plate 1 and the first rib plate 5, making the back of the first rib plate 5 hollow and reducing the overall weight of the bridge bearing. The second rib plate 6 is a solid structure, and its top surface is a concave curved surface; the concave curved surfaces of the two rib plates can better disperse stress. The size of the first rib plate 5 is larger than that of the second rib plate 6. In some embodiments, the width of the first rib plate is about 190 mm, the height is about 310 mm, the width of the second rib plate 6 is about 60 mm, and the height is 190 mm. The first rib plate 5 and the second rib plate 6 realize the fixed connection between the fixing plate 1 and the vertical plate 2, ensuring the structural strength of the connection between the fixing plate 1 and the vertical plate 2.

[0041] In some embodiments, the fixing plate 1 is a flat plate-like structure, and there are 6 mounting holes 7 on its upper surface, which are divided into two columns, with three mounting holes 7 in each column.

[0042] In some embodiments, the first column of mounting holes 7 is located near the side edge of the front end of the fixing plate 1. The arrangement is that they are arranged from the position close to the vertical plate 2 to the position far from the vertical plate 2. The centers of the three mounting holes 7 are located on a straight line, and the center connection line is parallel to the side of the fixing plate 1; the second column of mounting holes 7 has the same arrangement as the first column of mounting holes 7, and the two columns of mounting holes are arranged in parallel. There is also a concave pit in each mounting hole 7. The mounting holes 7 are used to fix the drive axle.

[0043] In some embodiments, the first rib plate 5 is located between the first column and the second column of mounting holes 7, and the second rib plate is located on the side of the second column of mounting holes 7 far from the first rib plate.

[0044] Compared with the bridge bearing composed of welded parts in the prior art, the bridge bearing of the present utility model is integrally made by a casting process, with the material being SCW620, suitable for low-temperature environments, and having no welds. Therefore, the bridge bearing itself has higher structural strength, better stability, longer service life, and better stress resistance effect.

[0045] The bridge bearing in this embodiment is connected and fixed to other parts of the front frame by welding. The specific welding method is as follows:

[0046] The vertical plate 2 of the butt joint bridge support of the front frame side plate is connected by fillet welding at the butt joint; the side plate abuts against the tail plate 3, and the abutting part is connected by fillet welding and groove welding. The cross-section 31 of the tail plate is welded to the support cross plate of the inner side plate of the side plate. The inner side of the front frame side plate is closely attached to the front of the convex plate 4. The convex plate 4 is connected to the inner side angle of the side plate by fillet welding along the edge of the arc structure 41. At the connection between the long strip convex platform 42 behind the convex plate 4 and the steering cylinder support on one side of the convex plate 4, chamfers are opened at both the upper and lower parts and are fixed by groove welding. The back of the bridge support is welded to the cover plate and the bridge connecting plate; the drive axle is assembled and connected to the bridge support through the mounting holes to further fix the drive axle and the front frame. It should be noted that two bridge supports are required for one front frame, and the two bridge supports are mirror structures.

[0047] Embodiment 2

[0048] This embodiment provides a loader, which uses the bridge support described in Embodiment 1 to fix the drive axle and the front frame of the loader. The specific connection method is the same as that in Embodiment 1 and will not be elaborated here.

[0049] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion.

[0050] Although the specific implementation manners of the present invention have been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A bridge support for a loader, characterized in that: It comprises a fixing plate, one side of which is vertically fixed with a vertical plate, and the other side of which is fixedly connected with a tail plate; The rear end of the vertical plate is fixed to the upper surface of the tail plate; A convex plate is vertically fixed on the tail plate, the convex plate is on the same side as the vertical plate and is staggered with the vertical plate; The top of the vertical plate is a pointed structure, and the convex plate is an arc structure.

2. A bridge support for a loader as claimed in claim 1, characterized in that: The fixing plate is also provided with a plurality of mounting holes.

3. The bridge support for a loader according to claim 1, characterized in that: The fixing plate is also provided with a first rib plate and a second rib plate in parallel.

4. A bridge support for a loader as claimed in claim 3, characterized in that: Two adjacent side surfaces of the first rib plate are fixedly connected to the fixed plate and the vertical plate respectively; and two adjacent side surfaces of the second rib plate are also fixedly connected to the fixed plate and the vertical plate respectively.

5. The bridge support for a loader as claimed in claim 3, characterized in that: The first rib is larger than the second rib.

6. The bridge support for a loader as claimed in claim 3, characterized in that: The top surface of the first rib plate is a concave curved surface.

7. The bridge support for a loader as claimed in claim 3, characterized in that: The overlapping part of the fixing plate and the first rib plate is a notch, so that the back of the first rib plate is hollow.

8. The bridge support for a loader as claimed in claim 3, characterized in that: The second rib plate is a solid structure, and its top surface is a concave curved surface.

9. The bridge support for a loader according to claim 1, characterized in that: The pointed structure comprises two oblique edges, namely a first oblique edge and a second oblique edge, and the angle between the two oblique edges is a set angle.

10. A loader, using the bridge support according to any one of claims 1 to 9.

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