Length-adjustable excavator dozer blade structure

Abstract

The utility model discloses a length adjustable's excavator bulldozing shovel structure, including first shovel board, two second shovel boards, first adjusting assembly and two second adjusting assemblies, wherein, the back of first shovel board is equipped with first connecting lug plate, and first connecting lug plate is connected with support arm through hinged axle, first adjusting assembly is installed below support arm, and first adjusting assembly is connected with first shovel board, the back of two second shovel boards is equipped with second connecting lug plate respectively, and first shovel board is equipped with two connecting plates, and two connecting plates are connected with corresponding second connecting lug plate through hinged axle respectively, two second adjusting assemblies are symmetrically set up on first connecting lug plate, and are connected with corresponding second shovel board. Thus, the shovel board length can be adjusted flexibly according to the construction site, reduces the frequency of advancing and retreating while guaranteeing the steering flexibility, and significantly improves the construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer blade technology, and in particular to a bulldozer blade structure with adjustable length. Background Technology

[0002] As a key working component of construction machinery (such as bulldozers, loaders, and excavators), the bulldozer blade is widely used in earthwork excavation, site leveling, and material handling. Its core structure includes the blade, cutting edge, support arm, and hydraulic control system. Traditional bulldozer blades typically have a fixed blade length, pre-set according to the main machine model and typical working conditions, and cannot be dynamically adjusted during operation.

[0003] When working in tunnels, underground projects, or in narrow areas or complex terrain around buildings, fixed-length shovels, due to their excessive size, cannot maneuver flexibly, thus limiting the effective working range. The sides of the shovel are prone to interfering with obstacles (such as walls, pipes, and support structures), which can reduce work efficiency or even cause equipment collisions, damage, or safety accidents. In confined spaces, long shovels cannot be fully extended or their pushing width adjusted as needed, leading to increased repetitive adjustments and a significant decrease in construction efficiency. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, one objective of this utility model is to propose an excavator bulldozer blade structure with adjustable blade length, which can be flexibly adjusted according to the construction site, ensuring steering flexibility while reducing the frequency of forward and backward movements, and significantly improving construction efficiency.

[0006] The length of the shovel can be flexibly adjusted according to the construction site, ensuring that the shovel can turn flexibly without repeated forward and backward movements, thus improving construction efficiency.

[0007] To achieve the above objectives, the first aspect of this utility model proposes a length-adjustable excavator bulldozer blade structure, comprising a first blade, two second blades, a first adjusting component, and two second adjusting components. The first blade has a first connecting lug on its back, which is connected to a support arm via a hinge shaft. The first adjusting component is installed below the support arm and connected to the first blade. The two second blades each have a second connecting lug on their backs. The first blade has two connecting plates, which are connected to their respective second connecting lugs via hinge shafts. The two second adjusting components are symmetrically arranged on the first connecting lugs and connected to their respective second blades.

[0008] In addition, the adjustable-length excavator bulldozer blade structure proposed above according to this utility model may also have the following additional technical features: Specifically, the first adjustment component includes two symmetrically arranged first hydraulic cylinders, which are hinged to the support arm, and the output end of the first hydraulic cylinder is hinged to the first shovel plate.

[0009] Specifically, the second adjustment assembly includes a connecting arm and a second hydraulic cylinder, wherein the connecting arm is disposed on the first connecting lug plate; the second hydraulic cylinder is hinged to the connecting arm, and the output end of the second hydraulic cylinder is hinged to the second connecting lug plate.

[0010] Specifically, the back of the first shovel plate and the second shovel plate are respectively provided with connecting blocks, and the connecting blocks are provided with grooves, in which reinforcing plates are inserted.

[0011] Specifically, the bottom of the first shovel plate and the second shovel plate are detachably connected with shovel blades.

[0012] Compared with the prior art, the present invention has the following advantages: the first adjustment component can adjust the horizontal tilt angle of the first shovel and the second shovel to push the soil to one side, and the second adjustment component can adjust the rotation angle of the second shovel, thereby flexibly adjusting the overall pushing width of the shovel, reducing the frequency of forward and backward movement while ensuring the flexibility of turning, and significantly improving construction efficiency.

[0013] Additional aspects and advantages of this invention 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

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a structural schematic diagram of an adjustable-length excavator bulldozer blade according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the blade structure in an adjustable-length excavator bulldozer blade structure according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of one of the second blades of the adjustable-length excavator bulldozer blade according to an embodiment of the present invention, after rotating 90 degrees.

[0015] As shown in the figure: 1. First shovel plate; 2. Second shovel plate; 3. First adjusting component; 4. Second adjusting component; 5. First connecting ear plate; 6. Support arm; 7. Second connecting ear plate; 8. Connecting block; 9. Reinforcing plate; 10. Shovel blade; 11. Connecting plate; 31. First hydraulic cylinder; 41. Connecting arm; 42. Second hydraulic cylinder. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0017] The adjustable-length excavator bulldozer blade structure of this utility model embodiment will be described below with reference to the accompanying drawings.

[0018] like Figures 1 to 3 As shown, the adjustable-length excavator bulldozer blade structure of this utility model embodiment may include a first blade 1, two second blades 2, a first adjustment component 3, and two second adjustment components 4.

[0019] The first shovel plate 1 has a first connecting ear plate 5 on its back side. The first connecting ear plate 5 is connected to the support arm 6 via a hinge shaft. The first adjustment component 3 is installed below the support arm 6 and is connected to the first shovel plate 1.

[0020] It should be noted that the two second shovel plates 2 are symmetrically arranged on both sides of the first shovel plate 1. The first shovel plate 1 and the second shovel plate 2 have the same structure, both being arc-shaped. The arc-shaped design causes the material to roll upward along the curved surface after contacting the lower part of the shovel plate. This rolling process converts some of the forward horizontal resistance into downward pressure and upward lift, thereby reducing the frontal resistance.

[0021] Furthermore, the support arm 6 is connected to the main frame (chassis) of the excavator, and the support arm 6 provides support for the entire first shovel 1 and the second shovel 2.

[0022] In an embodiment of this utility model, the first adjustment component 3 can adjust the tilt angle of the first shovel 1, improve its adaptability to different work sites, and ensure efficient bulldozing.

[0023] The back of each of the two second shovel plates 2 is provided with a second connecting ear plate 7. The first shovel plate 1 is provided with two connecting plates 11. The two connecting plates 11 are respectively connected to the corresponding second connecting ear plate 7 through a hinge shaft. The two second adjustment components 4 are symmetrically arranged on the first connecting ear plate 5 and connected to the corresponding second shovel plate 2.

[0024] It should be noted that the connecting plate 11 is located near the end of the first shovel plate 1. Through the cooperation of the hinge shaft, the second connecting ear plate 7 is hinged to the connecting plate 11, so as to adjust the position of the second shovel plate 2.

[0025] Furthermore, the second adjustment component 4 is used to adjust the position of the second shovel 2, and the two second shovels 2 can be controlled independently to adapt to the terrain of narrow areas. For example, during tunnel construction, when the tunnel is narrow, the second shovel 2 can be rotated 90 degrees by the second adjustment component 4 at the same time, so that the second shovel 2 is perpendicular to the first shovel 1, thereby reducing the pushing width and facilitating bulldozing operations.

[0026] In one embodiment of this utility model, such as Figure 1 As shown, the first adjustment component 3 includes two symmetrically arranged first hydraulic cylinders 31, the first hydraulic cylinders 31 are hinged to the support arm 6, and the output end of the first hydraulic cylinders 31 is hinged to the first shovel plate 1.

[0027] In the embodiments of this utility model, two first hydraulic cylinders 31 are symmetrically arranged. The tilt angle of the first shovel plate 1 can be adjusted by the two first hydraulic cylinders 31, which makes it easier to shovel the soil to one side.

[0028] Furthermore, the two first hydraulic cylinders 31 and the first connecting ear plate 5 form a triangular structure, which is relatively stable. The movement states of the telescopic rods of the two first hydraulic cylinders 31 are opposite. If the telescopic rod of one first hydraulic cylinder 31 extends, the telescopic rod of the other first hydraulic cylinder 31 retracts. Moreover, the first hydraulic cylinders 31 can be individually controlled by relevant personnel in the cab.

[0029] In one embodiment of this utility model, such as Figure 1 As shown, the second adjustment component 4 includes a connecting arm 41 and a second hydraulic cylinder 42, wherein the connecting arm 41 is disposed on the first connecting ear plate 5; the second hydraulic cylinder 42 is hinged to the connecting arm 41, and the output end of the second hydraulic cylinder 42 is hinged to the second connecting ear plate 7.

[0030] In an embodiment of this utility model, the second hydraulic cylinder 42 can adjust the angle between the second shovel plate 2 and the first shovel plate 1 (the second shovel plate 2 is parallel to the first shovel plate 1 or the second shovel plate 2 is perpendicular to the first shovel plate 1) to adapt to various construction environments.

[0031] Furthermore, such as Figure 1 As shown, the back of the first shovel plate 1 and the second shovel plate 2 are respectively provided with connecting blocks 8, and the connecting blocks 8 are provided with grooves, in which reinforcing plates 9 are inserted.

[0032] In an embodiment of this utility model, the connecting block 8 is located above the second connecting ear plate 7. When the second connecting ear plate 7 and the second shovel plate 2 rotate 90 degrees, the connecting block 8 will not interfere with their movement.

[0033] Furthermore, the reinforcing plate 9 can play an auxiliary role in fixing the second shovel plate 2, ensuring its stability during the bulldozing process.

[0034] In one embodiment of this utility model, such as Figure 2 As shown, the bottom of the first shovel plate 1 and the second shovel plate 2 are detachably connected to a shovel blade 10.

[0035] It should be noted that the blade 10 can be fixed to the bottom of the first blade 1 and the second blade 2 by bolts, which makes it easy to replace. The blade 10 has a sharp cutting edge (usually made of high-strength wear-resistant alloy steel). The sharp cutting edge reduces the contact area between the blade and the ground, which greatly reduces the sliding friction resistance between the bottom of the blade and the ground, making it easier for the bulldozer to push the material forward. At the same time, it can easily cut into soil, gravel, loose materials and even frozen soil.

[0036] Specifically, under normal circumstances, two second shovels 2 are arranged parallel to each other on both sides of the first shovel 1. The first shovel 1 and the second shovel 2 are moved forward by the excavator to achieve tasks such as site leveling and material moving.

[0037] When the construction area has limited space or the tunnel is narrow, the relevant personnel can remove the connecting block 8 from the groove and control the second hydraulic cylinder 42 to start. The second hydraulic cylinder 42 drives the second shovel plate 2 to rotate 90 degrees (see reference). Figure 3 This allows the second shovel plate 2 to rotate to the back of the first shovel plate 1, thereby reducing the pushing width. It is understood that, depending on the on-site construction environment, the rotation of the two second shovel plates 2 or one second shovel plate 2 can be controlled and adjusted. Therefore, it can adapt to various construction environments. When encountering narrow spaces, the pushing width can be flexibly adjusted, making it convenient to use and improving construction efficiency.

[0038] In summary, the adjustable-length excavator bulldozer blade structure of this utility model can adjust the horizontal tilt angle of the first blade and the second blade through the first adjustment component to facilitate pushing the soil to one side, and the second adjustment component can adjust the rotation angle of the second blade, thereby flexibly adjusting the overall pushing width of the blade. While ensuring steering flexibility, it reduces the frequency of forward and backward movements and significantly improves construction efficiency.

[0039] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A structure for an excavator bulldozer blade with adjustable length, characterized in that, It includes a first shovel plate, two second shovel plates, a first adjusting assembly, and two second adjusting assemblies, wherein, The back of the first shovel plate is provided with a first connecting ear plate, which is connected to the support arm via a hinge shaft; The first adjustment component is installed below the support arm and is connected to the first shovel plate; The back of each of the two second shovel plates is provided with a second connecting ear plate, and the first shovel plate is provided with two connecting plates. The two connecting plates are respectively connected to the corresponding second connecting ear plates through hinge shafts. Two second adjustment components are symmetrically arranged on the first connecting ear plate and connected to the corresponding second shovel plate.

2. The adjustable-length excavator bulldozer blade structure according to claim 1, characterized in that, The first adjustment assembly includes two symmetrically arranged first hydraulic cylinders, which are hinged to the support arm and the output end of the first hydraulic cylinder is hinged to the first shovel plate.

3. The adjustable-length excavator bulldozer blade structure according to claim 1, characterized in that, The second adjusting assembly includes a connecting arm and a second hydraulic cylinder, wherein, The connecting arm is disposed on the first connecting lug plate; The second hydraulic cylinder is hinged to the connecting arm, and the output end of the second hydraulic cylinder is hinged to the second connecting lug.

4. The adjustable-length excavator bulldozer blade structure according to claim 1, characterized in that, The back of the first shovel plate and the second shovel plate are respectively provided with connecting blocks, and the connecting blocks are provided with grooves, in which reinforcing plates are inserted.

5. The adjustable-length excavator bulldozer blade structure according to claim 1, characterized in that, The bottom of the first shovel plate and the second shovel plate are detachably connected with shovel blades.

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