Excavator bucket rod with reinforcing structure

Abstract

An excavator bucket rod with a reinforcing structure comprises a top plate, a bottom plate and wall plates on the two sides, the top plate, the bottom plate and the wall plates form a bucket rod body with a cavity inside, the upper portion of the top plate is connected with a set of lug plates in a welded mode, the front ends and the rear ends of the lug plates are connected with extension edges, and the extension edges are connected with the top plate in a welded mode; the side plates are connected to the wall plates in a welded mode, the upper edges of the side plates are connected with the side edges of the top plate and the extension edges in a welded mode, a special reinforcing structure is arranged for the connecting position of the top plate and the bucket rod cylinder lug plate, on one hand, the top plate can be prevented from being torn, and on the other hand, pulling and pressing alternating stress is transmitted to the bottom plate through the reinforcing plate; and the stress is dispersed to the whole bucket rod, so that the tearing risk of the top plate is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, and more specifically to an excavator boom with a strengthening structure. Background Art

[0002] An excavator is an earthmoving machine that uses a bucket to excavate materials above or below the machine's surface and load them into transport vehicles or unload them onto stockpiles. The materials excavated by the excavator are mainly soil, coal, sediment, and pre-loosened soil and rocks. From the development of construction machinery in recent years, the development of excavators has been relatively rapid, and excavators have become one of the most important construction machinery in engineering construction.

[0003] The boom and stick refer to a working device of an excavator, usually also called the boom and arm, respectively. Their main function is to control the excavation and loading actions of the bucket. The arm connected to the frame is longer, so it is commonly called the boom, and its technical term is the boom; the arm connected to the bucket is smaller, so it is commonly called the arm, and its technical term is the stick.

[0004] The excavator stick is generally a straight, integrally enclosed box-shaped welded member that is symmetric left and right, with equal width.

[0005] Through force analysis, during the use of the stick, the parts that are more likely to crack and break are mainly the parts where the top plate is connected to the stick cylinder ear plate. During excavation operations, the stick cylinder ear plate is subjected to alternating tensile and compressive stresses. Especially when the stick is connected to a breaker, the stress received is greater, and it is more likely to crack here. Summary of the Invention

[0006] One advantage of the utility model is to provide an excavator stick with a strengthening structure. A special strengthening structure is provided for the connection between the top plate and the stick cylinder ear plate. On the one hand, it can prevent the top plate from tearing, and on the other hand, it can transfer the alternating tensile and compressive stresses to the bottom plate through the strengthening plate, dispersing the stress to the whole stick, thereby greatly reducing the risk of tearing at the top plate.

[0007] To achieve at least one of the above advantages of the utility model, the utility model provides an excavator stick with a strengthening structure, which includes a top plate, a bottom plate, and side walls on both sides. The top plate, bottom plate, and side walls form a stick main body with a cavity inside. A group of ear plates are welded and connected to the upper part of the top plate. The front and rear ends of the ear plates are connected with extension edges, and the extension edges are connected to the top plate by welding; side plates are welded and connected to the side walls. The upper edge of the side plates is connected to the side edges of the top plate and the extension edges by welding;

[0008] A strengthening plate is arranged inside the cavity, and the upper and lower ends of the strengthening plate are connected to the top plate and the bottom plate by welding.

[0009] According to an embodiment of the present utility model, the reinforcing plate includes a first reinforcing plate and a second reinforcing plate, and the welding positions of the first reinforcing plate and the second reinforcing plate with the top plate are located below the two extension edges.

[0010] According to an embodiment of the present utility model, both the first reinforcing plate and the second reinforcing plate are inclined, and the inclination angles of the first reinforcing plate and the second reinforcing plate are opposite.

[0011] According to an embodiment of the present utility model, reinforcing ribs are provided on the upper part of the bottom plate, and the lower ends of the first reinforcing plate and the second reinforcing plate are connected to the ends of the reinforcing ribs.

[0012] According to an embodiment of the present utility model, the side edges of the reinforcing plate are connected to the inner side of the wall plate by welding.

[0013] According to an embodiment of the present utility model, the upper edge of the side plate is on the same horizontal plane as the extension edge, and the side plate is sequentially connected to the extension edge, the top plate and the wall plate by welding from top to bottom. Description of the Drawings

[0014] Figure 1 It is a schematic side view structure diagram of the present utility model;

[0015] Figure 2 It is a schematic top view structure diagram of the present utility model;

[0016] In the drawings: 1, top plate; 2, bottom plate; 3, wall plate; 4, ear plate; 5, extension edge; 6, side plate; 7, reinforcing rib; 8, first reinforcing plate; 9, second reinforcing plate. Detailed Embodiment

[0017] To make the purpose, technical solutions and advantages of the implementation of the present utility model clearer, the following will combine the attached drawings of the present utility model Figure 1 ~attached drawings Figure 2 , and describe the present utility model in more detail.

[0018] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variants. The basic principles defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present utility model.

[0019] Those skilled in the art should understand that in the disclosure of the specification, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present invention.

[0020] It can be understood that the term "one" should be construed as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0021] The present invention provides an excavator boom with a strengthening structure, which includes a top plate 1, a bottom plate 2 and side wall plates 3 on both sides. The top plate 1, the bottom plate 2 and the wall plates 3 form a boom main body with a cavity inside. A group of ear plates 4 are welded and connected to the upper part of the top plate 1. The front and rear ends of the ear plates 4 are connected with extension edges 5, and the extension edges 5 are connected to the top plate 1 by welding; side plates 6 are welded and connected to the wall plates 3. The upper edge of the side plates 6 is welded and connected to the side edges of the top plate 1 and the extension edges 5; strengthening plates are arranged in the cavity, and the upper and lower ends of the strengthening plates are welded and connected to the top plate 1 and the bottom plate 2; the strengthening plates include a first strengthening plate 8 and a second strengthening plate 9, and the welding positions of the first strengthening plate 8 and the second strengthening plate 9 with the top plate 1 are below the two extension edges 5; both the first strengthening plate 8 and the second strengthening plate 9 are inclined, and the inclination angles of the first strengthening plate 8 and the second strengthening plate 9 are opposite; strengthening ribs 7 are arranged on the upper part of the bottom plate 2, and the lower ends of the first strengthening plate 8 and the second strengthening plate 9 are connected to the ends of the strengthening ribs 7; the side edges of the strengthening plates are welded and connected to the inner sides of the wall plates 3; the upper edge of the side plates 6 is on the same horizontal plane as the extension edges 5, and the side plates 6 are sequentially welded and connected to the extension edges 5, the top plate 1 and the wall plates 3 from top to bottom.

[0022] Embodiment 1 of the present invention is as follows:

[0023] An excavator boom with a strengthening structure includes a top plate 1, a bottom plate 2 and side wall plates 3 on both sides. The top plate 1, the bottom plate 2 and the wall plates 3 form a boom main body with a cavity inside. A group of ear plates 4 are welded and connected to the upper part of the top plate 1. According to stress analysis, the part where tearing is more likely to occur is the place where the ear plates 4 are hinged to the top plate 1.

[0024] A special strengthening structure is provided at the connection between the top plate 1 and the bucket rod cylinder ear plate 4. On the one hand, it can prevent the top plate 1 from tearing. On the other hand, the tensile and compressive alternating stresses are transmitted to the bottom plate 2 through the reinforcing plate, and the stresses are dispersed to the whole bucket rod, thus greatly reducing the risk of tearing at the top plate 1.

[0025] Extended edges 5 are connected to the front and rear ends of the ear plate 4. The extended edges 5 are connected to the top plate 1 by welding. The most easily torn position is covered by the extended edges 5, and the connection is strengthened by welding. A side plate 6 is connected to the wall plate 3 by welding. The upper edge of the side plate 6 is connected to the side edges of the top plate 1 and the extended edges 5 by welding. The upper edge of the side plate 6 is on the same horizontal plane as the extended edges 5. The side plate 6 is connected to the extended edges 5, the top plate 1 and the wall plate 3 by welding from top to bottom in sequence. The extended edges 5, the top plate 1 and the wall plate 3 are connected into a whole by the side plate 6, further improving the structural strength here, dispersing the structural stress at the same time, and reducing the risk of tearing.

[0026] Reinforcing plates are arranged in the cavity. The reinforcing plates include a first reinforcing plate 8 and a second reinforcing plate 9. The upper and lower ends of the reinforcing plates are connected to the top plate 1 and the bottom plate 2 by welding. The side edges of the reinforcing plates are connected to the inner side of the wall plate 3 by welding. The welding positions of the first reinforcing plate 8 and the second reinforcing plate 9 with the top plate 1 are below the two extended edges 5. During excavation operations, after the structural stress is received at the extended edges 5, the stress will be transmitted to the wall plate 3 and the bottom plate 2 through the reinforcing plates, reducing the risk of tearing of the top plate 1.

[0027] Both the first reinforcing plate 8 and the second reinforcing plate 9 are inclined, and the inclination angles of the first reinforcing plate 8 and the second reinforcing plate 9 are opposite. Reinforcing ribs 7 are arranged on the upper part of the bottom plate 2. The lower ends of the first reinforcing plate 8 and the second reinforcing plate 9 are connected to the ends of the reinforcing ribs 7. The first reinforcing plate 8 and the second reinforcing plate 9 are in an overall V-shaped structural mode, and the tensile effect is better.

[0028] It should be noted that the terms "first", "second" and "third" in the present invention are only for descriptive purposes, do not represent any order, and cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the principle, the embodiments of the present invention can have any deformation or modification.

Claims

1. An excavator boom with a reinforcing structure, comprising a top plate, a bottom plate and side wall plates on both sides. The top plate, the bottom plate and the wall plates form a boom main body with a cavity inside, and it is characterized in that: A group of ear plates are welded and connected to the upper part of the top plate. The front and rear ends of the ear plates are connected with extension edges, and the extension edges are connected to the top plate by welding; Side plates are connected to the wall plates by welding, and the upper edge of the side plates is connected to the side edges of the top plate and the extension edges by welding; Reinforcing plates are arranged in the cavity, and the upper and lower ends of the reinforcing plates are connected to the top plate and the bottom plate by welding.

2. The excavator boom with a reinforcement structure according to claim 1, wherein: The reinforcing plates include a first reinforcing plate and a second reinforcing plate, and the welding positions of the first reinforcing plate and the second reinforcing plate with the top plate are located below the two extension edges.

3. The excavator arm with a reinforcement structure according to claim 2, characterized in that: Both the first reinforcing plate and the second reinforcing plate are inclined, and the inclination angles of the first reinforcing plate and the second reinforcing plate are opposite.

4. The excavator arm with a reinforcement structure according to claim 3, characterized in that: Reinforcing ribs are arranged on the upper part of the bottom plate, and the lower ends of the first reinforcing plate and the second reinforcing plate are connected to the ends of the reinforcing ribs.

5. The excavator boom with a reinforcement structure according to claim 4, characterized in that: The side edges of the reinforcing plates are connected to the inner side of the wall plates by welding.

6. The excavator arm with a reinforcement structure according to claim 1, characterized in that: The upper edge of the side plate is on the same horizontal plane as the extension edge, and the side plate is sequentially connected to the extension edge, the top plate and the wall plate from top to bottom by welding.

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