High-strength excavator bucket rod

Abstract

A high-strength excavator bucket rod comprises a top plate, a bottom plate and side plates located on the two sides of the bottom plate, the top plate, the bottom plate and the side plates form a main body of the bucket rod, and a first pin hole and a second pin hole are formed in the front portion of the bucket rod. The reinforcing structure is positioned at the front end of the bucket rod; the reinforcing structure comprises an upper auxiliary plate connected with the inner side face of the top plate, a lower auxiliary plate connected with the inner side face of the bottom plate and a vertical plate connecting the upper auxiliary plate and the lower auxiliary plate together, stress concentration parts are specially reinforced, stress is transmitted to other parts of the bucket rod through the reinforcing plates which are arranged in a crossed mode, stress concentration is effectively eliminated, and the service life of the bucket rod is prolonged. Therefore, the probability that a specific part of the bucket rod goes wrong is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, and more specifically to a high-strength excavator boom. Background Art

[0002] With the increasing number of national infrastructure projects, the requirements for excavators tend to be professional. It is required that the excavator has a special working device suitable for the working conditions for special working conditions and special working objects, so as to reduce power consumption and improve production efficiency. The working device consists of a boom, a boom, a bucket (or a breaker, etc.), and boom cylinders, boom cylinders, bucket cylinders, etc. that drive the movement of each component. The boom, the boom and the bucket are hinged to each other.

[0003] When other attachments are installed on the boom, especially when the structure of a breaker is involved, a large amount of impact needs to be endured. Due to stress concentration at the front end of the boom, tearing or even fracture may occur, especially near the second pin hole. If the boom breaks, the repair work is time-consuming and laborious. Therefore, it is necessary to strengthen specific parts to reduce the probability of problems with the boom. Summary of the Invention

[0004] One advantage of the utility model is to provide a high-strength excavator boom. Special strengthening is carried out on the stress concentration part, and the stress is transmitted to other parts of the boom through the cross-set strengthening plates, effectively eliminating stress concentration, thereby reducing the probability of problems occurring in specific parts of the boom.

[0005] To achieve at least one of the above advantages of the utility model, the utility model provides a high-strength excavator boom, which includes a top plate, a bottom plate and side plates on both sides thereof. The top plate, the bottom plate and the side plates form the main body of the boom. A first pin hole and a second pin hole are provided at the front part of the boom;

[0006] It further includes a strengthening structure, and the strengthening structure is located at the front end of the boom;

[0007] The strengthening structure includes an upper auxiliary plate connected to the inner side surface of the top plate, a lower auxiliary plate connected to the inner side surface of the bottom plate, and a vertical plate connecting the upper auxiliary plate and the lower auxiliary plate together.

[0008] According to an embodiment of the utility model, the vertical plate includes a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are respectively located on both sides of the second pin hole.

[0009] According to an embodiment of the utility model, the strengthening structure further includes a first strengthening plate and a second strengthening plate. The upper end of the first strengthening plate is connected to one end of the upper auxiliary plate by welding, the lower end of the first strengthening plate is connected to the middle of the bottom plate by welding, the lower end of the second strengthening plate is connected to one end of the lower auxiliary plate by welding, and the upper end of the second strengthening plate is connected to the middle of the top plate by welding.

[0010] According to an embodiment of the present utility model, slots are provided in the middle of the first reinforcing plate and the second reinforcing plate, and the first reinforcing plate and the second reinforcing plate are connected through the slots and are in a vertical position.

[0011] According to an embodiment of the present utility model, the first reinforcing plate and the second reinforcing plate are connected by welding at the slots.

[0012] According to an embodiment of the present utility model, the depth of the slot is equal to half of the width of the first reinforcing plate or the second reinforcing plate, and the width of the slot is equal to the thickness of the first reinforcing plate or the second reinforcing plate.

[0013] According to an embodiment of the present utility model, the side edges of the first reinforcing plate and the second reinforcing plate are connected to the inner side of the side plate by welding. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the reinforcing plate of the present utility model;

[0016] In the drawings: 1, top plate; 2, side plate; 3, bottom plate; 4, upper auxiliary plate; 5, lower auxiliary plate; 6, first vertical plate; 7, second vertical plate; 8, first reinforcing plate; 9, second reinforcing plate; 10, slot. Detailed Embodiment

[0017] To make the purpose, technical solution 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 Figure 2 to 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 variations. 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 that do not depart 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 relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 limiting the present utility model.

[0020] It can be understood that the term "one" should be understood 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 this element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0021] The present utility model provides a high-strength excavator boom, which includes a top plate 1, a bottom plate 3 and side plates 2 on both sides thereof. The top plate 1, the bottom plate 3 and the side plates 2 form the main body of the boom. The front part of the boom is provided with a first pin hole and a second pin hole; it further includes a strengthening structure located at the front end of the boom; the strengthening structure includes an upper auxiliary plate 4 connected to the inner side surface of the top plate 1, a lower auxiliary plate 5 connected to the inner side surface of the bottom plate 3, and a vertical plate connecting the upper auxiliary plate 4 and the lower auxiliary plate 5 together; the vertical plate includes a first vertical plate 6 and a second vertical plate 7, and the first vertical plate 6 and the second vertical plate 7 are respectively located on both sides of the second pin hole; the strengthening structure further includes a first strengthening plate 8 and a second strengthening plate 9. The upper end of the first strengthening plate 8 is connected to one end of the upper auxiliary plate 4 by welding, the lower end of the first strengthening plate 8 is connected to the middle part of the bottom plate 3 by welding, the lower end of the second strengthening plate 9 is connected to one end of the lower auxiliary plate 5 by welding, and the upper end of the second strengthening plate 9 is connected to the middle part of the top plate 1 by welding; slots 10 are provided in the middle parts of the first strengthening plate 8 and the second strengthening plate 9, and the first strengthening plate 8 and the second strengthening plate 9 are connected through the slots 10 and are in a vertical position; the first strengthening plate 8 and the second strengthening plate 9 are connected by welding at the slots 10; the depth of the slots 10 is equal to half of the width of the first strengthening plate 8 or the second strengthening plate 9, and the width of the slots 10 is equal to the thickness of the first strengthening plate 8 or the second strengthening plate 9; the side edges of the first strengthening plate 8 and the second strengthening plate 9 are connected to the inner side of the side plates 2 by welding.

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

[0023] A high-strength excavator boom includes a top plate 1, a bottom plate 3 and side plates 2 on both sides thereof. The top plate 1, the bottom plate 3 and the side plates 2 form the main body of the boom. The front part of the boom is provided with a first pin hole and a second pin hole, and a digging bucket or an attachment is connected through the first pin hole and the second pin hole. During the working process, the stress received at the second pin hole is the greatest.

[0024] To ensure the structural strength safety at the location with the maximum stress, a strengthening structure is provided. The strengthening structure is located at the front end of the dipper arm, and the second pin hole is surrounded inside it, thus overall strengthening the structural strength here.

[0025] The strengthening structure includes an upper auxiliary plate 4 connected to the inner side of the top plate 1, a lower auxiliary plate 5 connected to the inner side of the bottom plate 3, and a vertical plate connecting the upper auxiliary plate 4 and the lower auxiliary plate 5. The vertical plate includes a first vertical plate 6 and a second vertical plate 7. The first vertical plate 6 and the second vertical plate 7 are respectively located on both sides of the second pin hole. A quadrilateral box-shaped strengthening structure is formed by the upper auxiliary plate 4, the lower auxiliary plate 5, the first vertical plate 6, and the second vertical plate 7. The upper auxiliary plate 4, the lower auxiliary plate 5, the first vertical plate 6, and the second vertical plate 7 are all connected by welding to ensure strength.

[0026] When the second pin hole is subjected to stress impact, due to the setting of the box-shaped strengthening structure, the stress is dispersed and transmitted. At the same time, since the upper auxiliary plate 4 and the lower auxiliary plate 5 are welded to the top plate 1 and the bottom plate 3, it can also prevent the tearing of the top plate 1 or the bottom plate 3.

[0027] The strengthening structure further includes a first strengthening plate 8 and a second strengthening plate 9. Slots 10 are provided in the middle of the first strengthening plate 8 and the second strengthening plate 9. The first strengthening plate 8 and the second strengthening plate 9 are connected through the slots 10 and are in a vertical position. The depth of the slots 10 is equal to half of the width of the first strengthening plate 8 or the second strengthening plate 9, and the width of the slots 10 is equal to the thickness of the first strengthening plate 8 or the second strengthening plate 9. The side edges of the first strengthening plate 8 and the second strengthening plate 9 are connected to the inner side of the side plate 2 by welding. The first strengthening plate 8 and the second strengthening plate 9 are connected by welding at the slots 10. The first strengthening plate 8 and the second strengthening plate 9 form a cross-shaped strengthening structure, and both the first strengthening plate 8 and the second strengthening plate 9 are integral structures, and the structural integrity after welding is better.

[0028] The upper end of the first strengthening plate 8 is connected to one end of the upper auxiliary plate 4 by welding, the lower end of the first strengthening plate 8 is connected to the middle of the bottom plate 3 by welding, the lower end of the second strengthening plate 9 is connected to one end of the lower auxiliary plate 5 by welding, and the upper end of the second strengthening plate 9 is connected to the middle of the top plate 1 by welding.

[0029] Through the connection of the cross-shaped strengthening structure and the box-shaped strengthening structure, the stress is better transmitted and dispersed. At the same time, the structure is simple, the processing is convenient, and it can achieve a good reinforcement effect.

[0030] It should be noted that in the present utility model, the terms "first, second, and third" are only used 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.

[0031] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the accompanying drawings are only examples and do not limit the present utility model. The advantages of the present utility model have been fully and effectively realized. The functions and structural principles of the present utility model have been shown and described in the embodiments, and the embodiments of the present utility model can have any deformation or modification without departing from the principles.

Claims

1. A high-strength excavator boom, characterized in that: It includes a top plate, a bottom plate and side plates located on both sides thereof. The top plate, the bottom plate and the side plates form the main body of the bucket arm. A first pin hole and a second pin hole are provided at the front part of the bucket arm. It further includes a strengthening structure which is located at the front end of the bucket arm. The strengthening structure includes an upper auxiliary plate connected to the inner side surface of the top plate, a lower auxiliary plate connected to the inner side surface of the bottom plate, and a vertical plate connecting the upper auxiliary plate and the lower auxiliary plate together.

2. The high-strength excavator boom according to claim 1, wherein: The vertical plate includes a first vertical plate and a second vertical plate which are respectively located on both sides of the second pin hole.

3. The high-strength excavator boom according to claim 2, wherein: The strengthening structure further includes a first strengthening plate and a second strengthening plate. The upper end of the first strengthening plate is connected to one end of the upper auxiliary plate by welding, the lower end of the first strengthening plate is connected to the middle part of the bottom plate by welding, the lower end of the second strengthening plate is connected to one end of the lower auxiliary plate by welding, and the upper end of the second strengthening plate is connected to the middle part of the top plate by welding.

4. The high-strength excavator boom according to claim 3, characterized in that: Slots are provided in the middle parts of the first strengthening plate and the second strengthening plate. The first strengthening plate and the second strengthening plate are connected through the slots and are in a vertical position.

5. The high-strength excavator boom according to claim 4, characterized in that: The first strengthening plate and the second strengthening plate are connected by welding at the slots.

6. The high-strength excavator boom according to claim 4, wherein: The depth of the slot is equal to half of the width of the first strengthening plate or the second strengthening plate, and the width of the slot is equal to the thickness of the first strengthening plate or the second strengthening plate.

7. The high-strength excavator boom according to claim 3, wherein: The side edges of the first strengthening plate and the second strengthening plate are connected to the inner side of the side plate by welding.

Images