Tail lap joint structure of novel excavator platform welding

Abstract

The utility model relates to the technical field of excavator accessory processing, and discloses a novel excavator platform seaming tail lap joint structure which comprises a main platform seaming, a left platform seaming and a right platform seaming, a rear vertical plate is arranged on the rear portion of the main platform seaming, and rear baffles fixedly connected to the end of the rear vertical plate are arranged on the outer sides of a left main beam and a right main beam of the main platform seaming. A rear rib plate connected to the main platform welding rear bottom plate is arranged on the front side of the rear baffle, and a rear supporting plate connected with the main platform welding main beam and the rear rib plate is arranged on the portion, above the rear rib plate, of the rear baffle. The connecting structure is stable in structure, convenient to install and low in cost, the rear baffle is in butt joint with the side edge of the rear vertical plate and is fixedly connected with the rear rib plate, the stability of all the connecting positions of the rear baffle is effectively enhanced, the stress transition effect can be achieved through the rear rib plate, the rear supporting plate is connected with the main beam, the rear rib plate and the rear baffle, and the connecting stability of the main beam and the rear rib plate is improved. And more impact force can be effectively borne, and deformation of the whole structure is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of loader accessories processing, in particular to a tail overlap structure of a new excavator in which left and right platforms are welded and a main platform is welded. Background Art

[0002] As a key engineering machinery, the stable operation of the excavator in harsh working environments is particularly important. However, under working conditions such as bumpy conditions, rotating conditions, and the excavator digging up and down, there are certain flaws in the structure of the connection part between the left and right platform welds and the tail of the main platform weld. In the existing design, the baffle after the left and right platforms are welded is directly overlapped on the rear vertical plate and rear bottom plate of the main platform. However, in actual application, this structure has shown obvious imperfections. The main problem is that under harsh working conditions or impacts, cracks are prone to appear at the overlap of the baffle and the main platform. This situation not only affects the normal operation of the excavator, but may also cause more serious safety hazards, posing a threat to the safety of operators and equipment. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a tail overlap structure of a new excavator in which left and right platforms are welded together with a main platform, which has a stable structure and is easy to install.

[0004] To achieve the above-mentioned purpose, the utility model discloses a new tail lap joint structure of an excavator platform weld, including a main platform weld and a left platform weld and a right platform weld arranged on the left and right sides of the main platform weld, and a rear vertical plate connecting the left and right main beams of the main platform weld is provided at the rear of the main platform weld, and its structural feature is that the left platform weld and the right platform weld on the outer sides of the left and right main beams of the main platform weld are both provided with a rear baffle fixedly connected to the end of the rear vertical plate, a rear rib plate connected to the rear bottom plate of the main platform weld is provided on the front side of the rear baffle, and a rear support plate connecting the main platform weld main beam and the rear rib plate is provided on the rear baffle above the rear rib plate.

[0005] After adopting the above structure, the stability of the rear baffle connection points is effectively enhanced by docking the rear baffle on the side of the rear vertical plate and connecting and fixing it with the rear rib plate. The rear rib plate can also play a role in stress transition. The rear support plate is connected to the main beam, the rear rib plate and the rear baffle, which can effectively withstand more impact force and effectively prevent deformation of the overall structure.

[0006] Preferably, the rear vertical plate is vertically fixed to the rear bottom plate welded to the main platform in the vertical direction, and the front end surface of the rear vertical plate is fixed to the ends of the left and right main beams welded to the main platform, and the left and right ends of the rear vertical plate extend out of the vertical plane where the welded outer end surface of the main platform is located. The rear vertical plate arranged in the vertical direction is connected to the two main beams and the rear bottom plate to form a stable overall frame structure, which has strong stability and is not easily deformed after impact resistance.

[0007] Preferably, the rear baffle is a strip baffle and one end of the rear baffle close to the main beam is welded along the length direction of the end of the rear vertical plate, the plate body of the rear baffle and the welding end of the rear vertical plate is overlapped on the rear bottom plate welded to the main platform, the thickness of the rear baffle is adapted to the thickness of the rear vertical plate and the width of the rear vertical plate is adapted to the width of the rear vertical plate.

[0008] Preferably, the width of the plate body of the rear baffle welded to one end of the rear vertical plate is greater than the width of the plate body of the rear baffle body and the width of the plate body of the rear baffle welded to one end of the rear vertical plate is adapted to the width of the plate body of the rear vertical plate, and the end of the upper side edge of the rear baffle close to the rear vertical plate is smoothly transitioned to the upper side edge of the rear baffle body. The joint between the rear baffle and the rear vertical plate is greater than the width of the body and is smoothly transitioned, which can enhance the welding strength and reduce stress.

[0009] Preferably, the rear rib plate is an L-shaped baffle plate and the two side edges near the corners are respectively welded to the front end surface of the rear baffle plate and the upper end surface of the rear bottom plate near the main beam. The L-shaped baffle plate structure can effectively increase the welding area and improve the stability of the rear baffle plate connection structure.

[0010] Preferably, the rear support plate is an L-shaped plate formed by integrally processing and bending a rectangular plate body and includes a horizontal plate and a vertical plate, the upper side of the vertical plate is vertically connected to the front side of the horizontal plate and the length of the upper side of the vertical plate is adapted to the length of the front side of the horizontal plate, the lower side of the vertical plate is fixed to the upper end surface of the rear rib plate and the side of the vertical plate close to the main beam is welded to the side wall of the main beam, the rear end of the horizontal plate is respectively welded to the rear vertical plate and the rear baffle plate, and the side of the horizontal plate close to the main beam is welded to the side wall of the main beam. The rear support plate is connected to the main beam, the rear vertical plate, the rear baffle plate and the rear rib plate, so that the rear support plate forms a cavity structure, which has stronger stability and can withstand more impact force.

[0011] Preferably, the transverse plate is arranged in the horizontal direction and the end of the rear side of the transverse plate close to the main beam is welded to the front end surface of the rear vertical plate extending out of the main beam plate body.

[0012] To sum up, the beneficial effects of the utility model are: the utility model has a stable structure, is easy to install and has low cost, and the stability of the rear baffle connection is effectively enhanced by docking the rear baffle on the side of the rear vertical plate and connecting and fixing it with the rear rib plate, and the rear rib plate can also play a role in stress transition. The rear support plate is connected to the main beam, the rear rib plate and the rear baffle, which can effectively withstand more impact force and effectively prevent deformation of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a structural schematic diagram of the utility model's hidden rear support plate;

[0015] Figure 3 It is a structural schematic diagram of the rear side of the rear baffle of the utility model.

[0016] In the figure: 1. Main platform welding; 2. Main beam; 3. Rear vertical plate; 4. Rear baffle; 5. Rear bottom plate; 6. Rear rib plate; 7. Rear support plate; 8. Cross plate; 9. Vertical plate; 10. Side beam. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0021] like Figure 1 and Figure 3As shown, the utility model includes a main platform weld 1 and a left platform weld and a right platform weld arranged on the left and right sides of the main platform weld 1. Usually, two main beams 2 are respectively arranged on the left and right sides of the main platform weld 1, and the two main beams 2 are respectively arranged vertically on the main platform weld 1 along the length direction of the left and right sides of the main platform weld 1, and the main platform weld 1 and the left platform weld and the right platform weld are rectangular frame structures and the three are located in the same horizontal plane. The rear part of the above-mentioned main platform weld 1 is provided with a rear upright plate 3 connecting the left and right main beams 2 of the main platform weld 1, and the bottom of the main platform weld 1 is provided with a rear bottom plate 5. The structure of the above-mentioned main platform weld 1 is a well-known structure and is not described here in detail. During design, the above-mentioned rear upright plate 3 is vertically fixed to the rear bottom plate 5 of the main platform weld 1 in the vertical direction and the front end surface of the rear upright plate 3 is fixed to the ends of the left and right main beams 2 of the main platform weld 1, and the left and right ends of the rear upright plate 3 extend out of the vertical plane where the outer end surface of the main platform weld 1 is located. In this way, the rear upright plate 3 arranged along the vertical direction is connected with the two main beams 2 and connected with the rear bottom plate 5 to form a stable overall frame structure, which has strong stability and is not easy to deform after impact resistance.

[0022] like Figure 1 and Figure 3 As shown, in a preferred embodiment of the present invention, a rear baffle 4 fixedly connected to the end of the rear upright plate 3 is provided in the left platform weld and the right platform weld on the outer sides of the left and right main beams 2 of the main platform weld 1. Of course, the other ends of the two rear baffles 4 are welded to the side beam 10 of the left platform weld or the side beam 10 of the right platform weld. The connection structure and method of the rear baffle 4 and the side beam 10 are known structures. The rear baffle 4 is a strip baffle and one end of the rear baffle 4 close to the main beam 2 is welded along the length direction of the end of the rear upright plate 3. The plate body of the rear baffle 4 and the rear upright plate 3 welded end is overlapped on the main platform weld 1 On the rear bottom plate 5, during design, the thickness of the rear baffle 4 is adapted to the thickness of the rear upright plate 3 and the width of the rear upright plate 3 is adapted to the width of the rear upright plate 3, and the width of the plate body of the rear baffle 4 welded at one end of the rear upright plate 3 is greater than the plate body width of the rear baffle 4 body and the width of the plate body of the rear baffle 4 welded at one end of the rear upright plate 3 is adapted to the plate body width of the rear upright plate 3, and the upper side edge of the rear baffle 4 close to one end of the rear upright plate 3 is smoothly transitioned to the upper side edge of the rear baffle 4 body, so that the joint between the rear baffle 4 and the rear upright plate 3 is greater than the width of the body and is a smooth transition, which can enhance the welding area and strength and reduce stress.

[0023] like Figure 2As shown, in another preferred embodiment of the utility model, a rear rib plate 6 connected to the rear bottom plate 5 of the main platform weld 1 is arranged on the front side of the rear baffle 4, and a rear rib plate 6 connected to the rear bottom plate 5 of the main platform weld 1 is arranged on the front side of the rear baffle 4. When designed, the rear rib plate 6 is an L-shaped baffle and the two side edges near the corners are respectively welded to the front end surface of the rear baffle 4 and the upper end surface of the rear bottom plate 5 near the main beam 2. Of course, the L-shaped baffle is arranged in the horizontal direction and is welded to the rear baffle 4 along the lower side edge of the rear baffle 4. The structure of the L-shaped baffle can effectively enhance the welding area and improve the stability of the connection structure of the rear baffle 4.

[0024] like Figure 1 and Figure 3 As shown, in a specific embodiment of the present invention, a rear support plate 7 is further provided on the rear baffle plate 4 above the rear rib plate 6, which is connected to the main platform welded 1 main beam 2 and the rear rib plate 6. When designed, the rear support plate 7 is an L-shaped plate formed by integrally processing and bending a rectangular plate body and includes a horizontal plate 8 and a vertical plate 9. The upper side edge of the vertical plate 9 is vertically connected to the front side edge of the horizontal plate 8 and the length of the upper side edge of the vertical plate 9 is adapted to the length of the front side edge of the horizontal plate 8. The lower side edge of the vertical plate 9 is fixedly connected to the upper end surface of the rear rib plate 6 and the side edge of the vertical plate 9 close to the main beam 2 is welded to the side wall of the main beam 2. When manufactured, the rear end edge of the horizontal plate 8 is respectively welded to the rear vertical plate 3 and the rear baffle plate 4, wherein the side edge of the horizontal plate 8 close to the main beam 2 is welded to the side wall of the main beam 2. Of course, the horizontal plate 8 is arranged in the horizontal direction and the end portion of the rear side edge of the horizontal plate 8 close to the main beam 2 is welded to the front end surface of the rear vertical plate 3 extending out of the main beam 2 plate body. In this way, the main beam 2, the rear vertical plate 3, the rear baffle plate 4 and the rear rib plate 6 are connected through the rear support plate 7, so that the rear support plate 7 forms a cavity structure, which has stronger stability and can withstand more impact force.

[0025] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A new type of tail lap joint structure of an excavator platform weld, comprising a main platform weld (1) and a left platform weld and a right platform weld arranged on the left and right sides of the main platform weld (1), wherein a rear vertical plate (3) connecting the left and right main beams (2) of the main platform weld (1) is arranged at the rear of the main platform weld (1), characterized in that: A rear baffle (4) fixedly connected to the end of the rear upright plate (3) is provided inside the left platform weld and the right platform weld outside the left and right main beams (2) of the main platform weld (1); a rear rib plate (6) connected to the rear bottom plate (5) of the main platform weld (1) is provided on the front side of the rear baffle (4); a rear support plate (7) connected to the main beam (2) of the main platform weld (1) and the rear rib plate (6) is provided on the rear baffle (4) above the rear rib plate (6).

2. The new excavator platform welded tail lap joint structure as claimed in claim 1, characterized in that: The rear upright plate (3) is vertically fixed to the rear bottom plate (5) of the main platform weld (1) in the vertical direction, and the front end surface of the rear upright plate (3) is fixed to the ends of the left and right main beams (2) of the main platform weld (1), and the left and right ends of the rear upright plate (3) extend out of the vertical plane where the outer end surface of the main platform weld (1) is located.

3. The new type of excavator platform welded tail overlap structure as claimed in claim 1, characterized in that: The rear baffle (4) is a strip-shaped baffle, and one end of the rear baffle (4) close to the main beam (2) is welded along the length direction of the end of the rear upright plate (3). The plate bodies of the welded ends of the rear baffle (4) and the rear upright plate (3) are overlapped on the rear bottom plate (5) of the main platform weld (1). The thickness of the rear baffle (4) is adapted to the thickness of the rear upright plate (3), and the width of the rear upright plate (3) is adapted to the width of the rear upright plate (3).

4. The new excavator platform welded tail lap joint structure as claimed in claim 3, characterized in that: The width of the plate body of the rear baffle (4) welded to one end of the rear upright plate (3) is greater than the plate body width of the rear baffle (4) body, and the width of the plate body of the rear baffle (4) welded to one end of the rear upright plate (3) is adapted to the plate body width of the rear upright plate (3), and the end of the upper side edge of the rear baffle (4) close to the rear upright plate (3) is smoothly transitioned to the upper side edge of the rear baffle (4) body.

5. The new type of excavator platform welded tail overlap structure as claimed in claim 1, characterized in that: The rear rib plate (6) is an L-shaped baffle plate, and the two side edges near the corners are respectively welded to the front end surface of the rear baffle plate (4) and the upper end surface of the rear bottom plate (5) near the main beam (2).

6. The new type of excavator platform welded tail overlap structure as claimed in claim 1, characterized in that: The rear support plate (7) is an L-shaped plate formed by integrally processing and bending a rectangular plate body and comprises a horizontal plate (8) and a vertical plate (9); the upper side edge of the vertical plate (9) is vertically connected to the front side edge of the horizontal plate (8) and the length of the upper side edge of the vertical plate (9) is adapted to the length of the front side edge of the horizontal plate (8); the lower side edge of the vertical plate (9) is fixedly connected to the upper end surface of the rear rib plate (6) and the side edge of the vertical plate (9) close to the main beam (2) is welded to the side wall of the main beam (2); the rear end edge of the horizontal plate (8) is respectively welded to the rear vertical plate (3) and the rear baffle plate (4); the side edge of the horizontal plate (8) close to the main beam (2) is welded to the side wall of the main beam (2).

7. The new excavator platform welded tail overlap structure as claimed in claim 6, characterized in that: The transverse plate (8) is arranged in the horizontal direction, and the end of the rear side edge of the transverse plate (8) close to the main beam (2) is welded to the front end surface of the rear vertical plate (3) extending out of the main beam (2).

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