Overturning excavator bucket structure of excavator and excavator

Abstract

The utility model provides an excavator and an overturning excavator bucket structure thereof, the overturning excavator bucket structure comprises a fixed connecting frame used for being connected with a bucket rod of the excavator, and the fixed connecting frame can rotate relative to the bucket rod; the excavator bucket body is hinged to the fixed connecting frame; and the driving component is arranged on the excavator bucket body, and the excavator bucket body can rotate around a first hinge shaft between the excavator bucket body and the fixed connecting frame under the driving action of the driving component. According to the excavator bucket, excavation of a groove with the inclined side face can be achieved, the operation efficiency is improved, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heavy machinery technology, and in particular to a tilting bucket structure for an excavator and the excavator itself. Background Technology

[0002] Excavators are heavy-duty construction machinery widely used in earthmoving, mining, and municipal engineering. With technological advancements, excavator technology has continuously innovated and progressed, improving work efficiency and safety.

[0003] Currently, existing excavators, especially mini excavators, primarily connect their buckets to the excavator's stick via connecting rods and push rods. In this configuration, the bucket can only perform partial circular motion around the hinge axis between the bucket and the stick, which can be understood as an axis parallel to the Y-axis in a three-dimensional coordinate system. This existing technology limits the bucket's movement to keeping it parallel to the ground during excavation, restricting it to trenches with a rectangular cross-section. When the trench requires a certain slope or a trapezoidal cross-section, existing excavators struggle to achieve this, necessitating the use of other equipment or manual labor. This results in low excavation efficiency and high operating costs. Therefore, enabling excavators to excavate trenches with sloped sides, and improving operational efficiency while reducing operating costs, are pressing technical problems that need to be addressed. Utility Model Content

[0004] In view of this, the present invention provides a tilting bucket structure for an excavator and an excavator, so as to eliminate or improve one or more defects existing in the prior art.

[0005] One aspect of this utility model provides a tilting bucket structure for an excavator, the tilting bucket structure comprising:

[0006] A fixed connecting frame for connecting to the stick of an excavator, the fixed connecting frame being rotatable relative to the stick;

[0007] The bucket body is hinged to the fixed connecting frame;

[0008] A driving component is disposed on the bucket body, and the bucket body can rotate around the first hinge axis between the bucket body and the fixed connecting frame under the driving action of the driving component.

[0009] In some embodiments of this utility model, the driving component is a hydraulic cylinder, the cylinder body end of the hydraulic cylinder is hinged to the bucket body, and the cylinder rod end of the hydraulic cylinder is hinged to the fixed connecting frame.

[0010] In some embodiments of this utility model, the fixed connecting frame and the stick are hinged together by a second hinge shaft.

[0011] In some embodiments of this utility model, the axes of the first hinge axis and the second hinge axis are perpendicular to each other.

[0012] In some embodiments of this utility model, the fixed connecting frame includes a connecting plate, a first ear plate and a second ear plate, the ends of the first ear plate and the second ear plate are fixedly connected to the connecting plate, and the first ear plate and the second ear plate are respectively located on both sides of the connecting plate.

[0013] In some embodiments of this utility model, the first ear plate has a first mounting hole for mounting a first hinge shaft, and the second ear plate has a second mounting hole for mounting a second hinge shaft.

[0014] In some embodiments of this utility model, the cylinder rod end is hinged to the fixed connecting frame via a third hinge shaft, and the axis of the third hinge shaft is parallel to the axis of the first hinge shaft.

[0015] In some embodiments of this utility model, the first ear plate further has a third mounting hole for mounting the third hinge shaft, the third mounting hole being located below the first mounting hole.

[0016] In some embodiments of this utility model, the axis of the hydraulic cylinder is perpendicular to the end wall of the bucket body.

[0017] According to another aspect of the present invention, an excavator is also disclosed, the excavator including the tilting bucket structure of the excavator as described in any of the above embodiments.

[0018] The excavator tilting bucket structure and excavator disclosed in the above embodiments of this application allow the bucket body to rotate around a first hinge axis between itself and the fixed connecting frame under the driving action of the driving component. That is, the bucket body of this application can swing in multiple directions relative to the stick. The bucket body can rotate not only around a second hinge axis between the fixed connecting frame and the stick, but also around the first hinge axis. Referring to a three-dimensional coordinate system, the bucket body of this application can rotate not only around a hinge axis parallel to the Y-axis, but also around a hinge axis parallel to the X-axis under the driving action of the driving component. When the bucket body rotates around the first hinge axis, the bucket is tilted relative to the ground, thus enabling the excavation of trenches on the tilted side. Therefore, the tilting bucket structure of this application can not only excavate rectangular trenches, but also trapezoidal trenches, improving work efficiency and reducing operating costs.

[0019] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0020] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings:

[0022] Figure 1 This is a first structural schematic diagram of a tilting bucket structure according to an embodiment of the present invention.

[0023] Figure 2 This is a second structural schematic diagram of the tilting bucket structure according to an embodiment of the present invention.

[0024] Figure 3a , 3b 3c and 3c are structural diagrams of the first, second, and third states of the excavator bucket body, respectively.

[0025] Figure 4 For the excavator body in Figure 3b The diagram shows the positional relationship between the stick and the target in the second state.

[0026] Figure 5 For the excavator body in Figure 3c The diagram shows the positional relationship between the boom and the stick in the third state.

[0027] Figure 6 This is a structural schematic diagram of a fixed connecting frame according to an embodiment of the present utility model.

[0028] Figure 7 for Figure 6 The front view of the fixed connecting bracket shown.

[0029] Figure 8 This is a schematic diagram of the structure of the bucket body according to an embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of a hydraulic cylinder according to an embodiment of the present invention.

[0031] Figure 10 This is a schematic diagram of the structure of the first hinge shaft according to an embodiment of the present invention.

[0032] Figure 11 This is a schematic diagram of the structure of the third hinge shaft according to an embodiment of the present invention.

[0033] Figure label:

[0034] Fixed connecting frame 10, bucket body 20, drive component 30, stick 40, first hinge shaft 50, second hinge shaft 60, third hinge shaft 70, connecting plate 11, first ear plate 12, second ear plate 13, first mounting hole 121, second mounting hole 131, third mounting hole 122 Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0036] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0037] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0038] It should also be noted that the directional terms such as "left end" and "right end" used in this specification are relative to the positions shown in the attached drawings. Unless otherwise specified, the term "connection" in this document can refer not only to a direct connection but also to an indirect connection involving an intermediate component. A direct connection is a connection between two components without the aid of an intermediate component, while an indirect connection is a connection between two components using other components.

[0039] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.

[0040] Figure 1 and Figure 2 These are, respectively, a first structural schematic diagram and a second structural schematic diagram of a tilting bucket structure according to an embodiment of the present utility model, as shown below. Figure 1 and Figure 2 As shown, the tilting bucket structure includes at least a fixed connecting frame 10, a drive component 30, and a bucket body 20.

[0041] The fixed connecting frame 10 is used to connect with the stick 40 of the excavator, and the fixed connecting frame 10 is rotatable relative to the stick 40; the bucket body 20 is hinged to the fixed connecting frame 10; the driving component 30 is disposed on the bucket body 20, and the bucket body 20 can rotate around the first hinge axis 50 between the bucket body 20 and the fixed connecting frame 10 under the driving action of the driving component 30.

[0042] In the above embodiment, the bucket body 20 is connected to the fixed connecting frame 10, allowing the bucket body 20 to rotate relative to the boom 40 with the fixed connecting frame 10. The rotatable connection between the fixed connecting frame 10 and the boom 40 enables the bucket body 20 to dig. Furthermore, the bucket body 20 and the fixed connecting frame 10 are rotatably connected via a first hinge shaft 50, allowing for the adjustment of the bucket body 20's orientation, enabling it to perform both planar and inclined excavation. Figure 3a , 3b As shown in 3c, Figure 3a The bucket body 20 shown is in its initial state. The bucket body 20 in this state is used to excavate trenches that do not require tilting, such as trenches with a rectangular cross-section. Figure 3b The bucket body 20 shown is in a state after rotating clockwise by a certain angle from its initial state. This state is formed by the drive component 30 driving the bucket body 20 to rotate clockwise around the first hinge axis 50. In this state, the bucket body 20 can excavate the inclined surface of the trench, such as the left side of a trench with a trapezoidal cross-section; similarly, Figure 3c The bucket body 20 shown is in the state after rotating counterclockwise by a certain angle from the initial state. This state is formed by the drive component 30 driving the bucket body 20 to rotate counterclockwise around the first hinge axis 50. In this state, the bucket body 20 can also excavate the inclined surface of the trench, such as the right side of a trench with a trapezoidal cross-section.

[0043] In addition, Figure 3a In the initial state of the corresponding bucket body 20, the angle between the bucket body 20 and the stick 40 is approximately 90 degrees, that is, the bucket body 20 and the stick 40 are perpendicular to each other; while... Figure 4 and Figure 5 As shown, in Figure 3b and 3c In the corresponding state of the bucket body 20, the bucket body 20 is tilted relative to the boom 40. At this time, the tilted bucket body 20 realizes the excavation of the inclined surface of the trench.

[0044] Furthermore, the driving component 30 is a hydraulic cylinder, with the cylinder body end hinged to the bucket body 20 and the cylinder rod end hinged to the fixed connecting frame 10. In this embodiment, the bucket body 20 can rotate around the first hinge axis 50 under the driving action of the hydraulic cylinder; see reference. Figure 1 Specifically, the hydraulic cylinder can be located on the same side of the bucket body 20 as the fixed connecting frame 10, and the hydraulic cylinder can be specifically set on the left or right side of the fixed connecting frame 10. Figure 1 The hydraulic cylinder shown is located on the right side of the fixed connecting frame 10; in Figure 1 In the illustrated embodiment, the right end of the cylinder body is hinged to the bucket body 20, and the left end of the cylinder rod is hinged to the fixed connecting frame 10. In this embodiment, when the cylinder body is the oil inlet and the cylinder rod is the oil outlet, the cylinder rod extends, and the cylinder drives the bucket body 20 to rotate clockwise around the first hinge axis 50. When the cylinder body is the oil outlet and the cylinder rod is the oil inlet, the cylinder rod retracts, and the cylinder drives the bucket body 20 to rotate counterclockwise around the first hinge axis 50. It is understood that this embodiment of driving the rotation of the bucket body 20 based on a cylinder is only one example. In other embodiments, the bucket body 20 can also be driven to rotate by other driving components 30.

[0045] Furthermore, the cylinder rod end is hinged to the fixed connecting frame 10 via a third hinge shaft 70, and the axis of the third hinge shaft 70 is parallel to the axis of the first hinge shaft 50. In this embodiment, the cylinder rod end is also connected to the fixed connecting frame 10 via a hinge shaft, and the structural schematic diagram of the third hinge shaft 70 is shown below. Figure 11 As shown; in order to connect the cylinder rod and the fixed connecting bracket 10 via the third hinge shaft 70, then as follows Figure 9 As shown, a shaft hole can be provided at the left end of the cylinder rod of the hydraulic cylinder, and the third hinge shaft 70 is specifically located in this shaft hole. Under the extension and retraction movement of the cylinder rod, the hydraulic cylinder can rotate around the third hinge shaft 70 relative to the fixed connecting frame 10. Similarly, the cylinder body end of the hydraulic cylinder can also be connected to the bucket body 20 via a fourth hinge shaft, such as... Figure 8 As shown, the bucket body 20 has a shaft hole for mounting the fourth hinge shaft, and in order to achieve stable extension and retraction of the cylinder rod, the axis of the fourth hinge shaft is parallel to the axis of the third hinge shaft 70; similarly, under the extension and retraction movement of the cylinder rod, the hydraulic cylinder can also rotate relative to the bucket body 20 around the fourth hinge shaft at the same time; in this embodiment, the fixed connecting frame 10, the bucket body 20 and the hydraulic cylinder constitute a four-bar linkage structure.

[0046] In some embodiments of this utility model, the axis of the hydraulic cylinder is perpendicular to the end wall of the bucket body 20. For example... Figure 3aAs shown, in this embodiment, the cylinder rod axis is always parallel to the top side of the bucket body 20. This cylinder rod structure ensures the stability of the bucket body 20 rotating about the first hinge axis 50.

[0047] To ensure that the tilting bucket structure as a whole can rotate relative to the boom 40, the fixed connecting frame 10 and the boom 40 are hinged together by a second hinge shaft 60. The second hinge shaft 60 is used to realize the hinged connection between the fixed connecting frame 10 and the boom 40, so that the rotation of the fixed connecting frame 10 around the second hinge shaft 60 realizes the rotation of the tilting bucket structure as a whole relative to the boom 40.

[0048] Furthermore, the axes of the first hinge axis 50 and the second hinge axis 60 are perpendicular to each other; as shown... Figure 4 and Figure 5 As shown, the axis of the second hinge shaft 60 is parallel to the horizontal direction, while the axis of the first hinge shaft 50 is perpendicular to the plane of the paper. Therefore, the first hinge shaft 50 and the second hinge shaft 60 are perpendicular to each other. In this embodiment, the bucket body 20 can rotate around the first hinge shaft 50, while the entire tilting bucket structure can rotate around the second hinge shaft 60.

[0049] Figure 6 This is a structural schematic diagram of the fixed connecting bracket 10 according to an embodiment of the present invention. Figure 7 This is a front view of the fixed connecting bracket 10, as shown below. Figure 6 and Figure 7 As shown, the fixed connecting frame 10 includes a connecting plate 11, a first ear plate 12, and a second ear plate 13. The ends of both the first ear plate 12 and the second ear plate 13 are fixedly connected to the connecting plate 11, and the first ear plate 12 and the second ear plate 13 are respectively located on both sides of the connecting plate 11. Figure 7 As can be seen, the first ear plate 12 and the second ear plate 13 are located on the lower and upper sides of the connecting plate 11, respectively. The fixed connecting frame 10 is hinged to the bucket body 20 and the oil cylinder through the first ear plate 12, and the fixed connecting frame 10 is hinged to the stick 40 through the second ear plate 13.

[0050] Specifically, the first ear plate 12 has a first mounting hole 121 for mounting the first hinge shaft 50, and the second ear plate 13 has a second mounting hole 131 for mounting the second hinge shaft 60. When the fixed connecting frame 10 is connected to the bucket body 20 and the boom 40, the first hinge shaft 50 is located in the first mounting hole 121. At this time, the corresponding bucket body 20 also has a mounting hole for mounting the first hinge shaft 50, and the second hinge shaft 60 is located in the second mounting hole 131. A schematic diagram of the structure of the first hinge shaft 50 is shown below. Figure 10 As shown.

[0051] To achieve the hinged connection between the fixed connecting bracket 10 and the cylinder rod, the corresponding first ear plate 12 also has a third mounting hole 122 for mounting the third hinge shaft 70. The third mounting hole 122 is located below the first mounting hole 121. Since the axes of the third hinge shaft 70 and the first hinge shaft 50 are parallel to each other, the axes of the corresponding first mounting hole 121 and the third mounting hole 122 are also parallel to each other.

[0052] Accordingly, this utility model also provides an excavator, which includes the tilting bucket structure of the excavator as described in any of the above embodiments.

[0053] As can be seen from the above embodiments, under the driving action of the hydraulic cylinder, the bucket body of the tilting bucket structure of this application can rotate around the first hinge axis relative to the fixed connecting frame. Therefore, the bucket body and the stick can be made perpendicular to each other, or the bucket body can be tilted relative to the stick. Thus, this tilting bucket structure can not only excavate rectangular cross-section trenches, but also complete the excavation of trapezoidal cross-section trenches. Therefore, the tilting bucket structure of this application expands the application scenarios of excavators, improves operating efficiency, and reduces operating costs. Furthermore, the tilting bucket structure of this application is not only simple in structure and easy to manufacture and install, but also improves the practicality and multi-functionality of excavators.

[0054] In this invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tilting bucket structure for an excavator, characterized in that, The tipping bucket structure includes: A fixed connecting frame for connecting to the stick of an excavator, the fixed connecting frame being rotatable relative to the stick; The bucket body is hinged to the fixed connecting frame; A driving component is disposed on the bucket body, and the bucket body can rotate around the first hinge axis between the bucket body and the fixed connecting frame under the driving action of the driving component.

2. The tilting bucket structure of the excavator according to claim 1, characterized in that, The driving component is a hydraulic cylinder, the cylinder body end of which is hinged to the bucket body, and the cylinder rod end of which is hinged to the fixed connecting frame.

3. The tilting bucket structure of the excavator according to claim 2, characterized in that, The fixed connecting frame and the stick are hinged together by a second hinge shaft.

4. The tilting bucket structure of the excavator according to claim 3, characterized in that, The axes of the first hinge axis and the second hinge axis are perpendicular to each other.

5. The tilting bucket structure of the excavator according to claim 4, characterized in that, The fixed connecting frame includes a connecting plate, a first ear plate, and a second ear plate. The ends of the first ear plate and the second ear plate are fixedly connected to the connecting plate, and the first ear plate and the second ear plate are respectively located on both sides of the connecting plate.

6. The tilting bucket structure of the excavator according to claim 5, characterized in that, The first ear plate has a first mounting hole for mounting a first hinge shaft, and the second ear plate has a second mounting hole for mounting a second hinge shaft.

7. The tilting bucket structure of the excavator according to claim 6, characterized in that, The cylinder rod end is hinged to the fixed connecting frame via a third hinge shaft, and the axis of the third hinge shaft is parallel to the axis of the first hinge shaft.

8. The tilting bucket structure of the excavator according to claim 7, characterized in that, The first ear plate also has a third mounting hole for mounting the third hinge shaft, the third mounting hole being located below the first mounting hole.

9. The tilting bucket structure of the excavator according to claim 8, characterized in that, The axis of the hydraulic cylinder is perpendicular to the end wall of the bucket body.

10. An excavator, characterized in that, The excavator includes the tipping bucket structure of the excavator as described in any one of claims 1 to 9.

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