Excavator and bucket thereof

Abstract

The utility model belongs to the technical field of excavator equipment, and particularly relates to an excavator and a bucket thereof, the excavator bucket comprises a main body part, a back plate part and a first reinforcing part, the main body part is provided with a bent plate part bent towards the radial inner side along the circumferential end part, and the bent plate part and the radial inner side of the main body part form a bucket space; the outer side wall of the bent plate piece is provided with a connecting combined piece and connected with an excavator arm. The back plate piece is connected with the inner side wall of the bent plate piece and the inner side wall of the main body piece so as to divide the bucket space into a mounting cavity relatively close to the connecting assembly and a shovel groove area relatively far away from the connecting assembly; the first reinforcing piece is arranged in the mounting cavity and connected with the back plate piece and the bent plate piece. According to the excavator bucket, the first reinforcing piece is arranged in the mounting cavity formed between the back plate piece and the bent plate piece to reinforce connection between the back plate piece and the bent plate piece, so that the excavator bucket is more stable, and the reliability of the excavator bucket is improved.

Description

Technical Field

[0001] This application belongs to the technical field of excavator equipment, and particularly relates to an excavator and its bucket. Background Art

[0002] As an indispensable construction machinery in engineering operations, an excavator can be applied to excavation operations under various working conditions. An excavator includes a body, an arm, and a bucket. Among them, a connection structure for connecting with the arm is provided on the bucket. During the excavation operation, the connection structure needs to bear and transmit loads. When in a construction working condition with particularly harsh environment, the design quality of the connection structure directly affects the reliability of the bucket.

[0003] In the prior art, most of them adopt the method of setting several reinforcing ribs at the connection between the connection structure and the bucket. In view of the above related technologies, only strengthening the connection between the connection structure and the bucket cannot overall improve the strength of the connection structure to meet the requirements of bearing and conducting loads, thus affecting the reliability of the bucket. Utility Model Content

[0004] The purpose of this application is to provide an excavator and its bucket, aiming to improve the reliability of the bucket.

[0005] To achieve the above purpose, on the one hand, this application provides an excavator bucket, including:

[0006] A main body member, one end of the main body member in the circumferential direction is provided with a shovel head, the other end of the main body member in the circumferential direction is provided with a bent plate member bent inward in the radial direction. A bucket space is formed between the bent plate member and the inner side in the radial direction of the main body member, and a connection fitting is provided on the outer side wall of the bent plate member;

[0007] A back plate member, connecting the inner side wall of the bent plate member and the inner side wall of the main body member to divide the bucket space into an installation cavity relatively close to the connection fitting and a shovel groove area relatively far from the connection fitting; and

[0008] A first reinforcing member, arranged in the installation cavity and connected to the back plate member and the bent plate member.

[0009] In some embodiments, the outer contour of the orthographic projection of the first reinforcing member in the radial plane is the same as the inner contour of the orthographic projection of the installation cavity in the radial plane.

[0010] In some embodiments, a plurality of the first reinforcing members are arranged at intervals along the axial direction.

[0011] In some embodiments, the first reinforcing member and the connection fitting are arranged staggeredly along the axial direction.

[0012] In some embodiments, the excavator bucket further includes a side plate member covering the installation cavity and the bucket groove area, and the side plate member is connected to both the axial end of the back plate member and the axial end of the bent plate member.

[0013] In some embodiments, a second reinforcing member connected to the inner side wall of the side plate member is provided on the inner side wall of the back plate member.

[0014] In some embodiments, at least one of the first reinforcing members is arranged within the axial length range of the second reinforcing member.

[0015] In some embodiments, a weight-reducing hole is formed in the first reinforcing member.

[0016] In some embodiments, a clamping groove is formed on the connecting fitting, the outer side wall of the bent plate member fits with the bottom wall of the clamping groove, a folding angle portion is formed on the side wall of the clamping groove, and the folding angle portion is in limiting cooperation with the end of the bent plate member.

[0017] In some embodiments, a third reinforcing member connected to the connecting fitting is provided on the outer side wall of the bent plate member.

[0018] The second aspect of the present application provides an excavator, including an excavator bucket.

[0019] By the above technical solution, as an excavator bucket for performing excavation operations under various working conditions, wherein the connecting fitting is arranged on the bent plate member and connected to the excavator boom, the bent plate member is connected to the main body member, that is, the connecting fitting connects the main body member and the excavator boom, and a bucket groove area is formed inside the main body member for performing excavation operations. In the present application, the connection between the back plate member and the bent plate member is strengthened by arranging the first reinforcing member in the installation cavity formed between the back plate member and the bent plate member, so that the excavator bucket is more stable, and thus the reliability of the excavator bucket is improved.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used to explain the embodiments of the present application together with the following specific embodiments, but do not constitute a limitation to the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0022] Figure 1 is a schematic structural diagram of an excavator bucket in a specific embodiment according to the present application;

[0023] Figure 2Front view schematic diagram of an excavator bucket in a specific embodiment according to the present application;

[0024] Figure 3 is Figure 2 Schematic cross-sectional view taken along A-A in

[0025] Figure 4 Schematic structural diagram of a bent plate member in a specific embodiment according to the present application;

[0026] Figure 5 Schematic structural diagram of a connecting member in a specific embodiment according to the present application;

[0027] Figure 6 Schematic structural diagram of a side plate member in a specific embodiment according to the present application.

[0028] Explanation of reference numerals

[0029] 100, excavator bucket; 1, first reinforcing member; 2, second reinforcing member; 3, third reinforcing member; 4, main body member; 5, back plate member; 6, bent plate member; 61, middle bent plate section; 62, side bent plate section; 7, connecting member; 71, clamping groove; 72, folding corner; 8, side plate member; 81, arc plate portion; 82, side guard plate portion; 83, main cutting edge plate portion; 9, bucket groove area; 10, installation cavity; 11, bucket head. Detailed description of the specific implementation mode

[0030] The following will describe in detail the specific implementation mode of the present application with reference to the accompanying drawings. It should be understood that the specific implementation mode described herein is only used to illustrate and explain the present application, and is not used to limit the present application.

[0031] The following will describe the excavator and its bucket noun part according to the present application with reference to the accompanying drawings.

[0032] As Figure 1 and Figure 2 shown, a specific embodiment of the present application provides an excavator bucket 100, including a main body member 4, a back plate member 5, and a first reinforcing member 1. Among them, one end of the main body member 4 in the circumferential direction is provided with a bucket head 11, and the other end of the main body member 4 in the circumferential direction is provided with a bent plate member 6 that is bent inward in the radial direction. A bucket space is formed between the bent plate member 6 and the inner side of the main body member 4, and a connecting member 7 is provided on the outer side wall of the bent plate member 6; the back plate member 5 connects the inner side wall of the bent plate member 6 and the inner side wall of the main body member 4 to divide the bucket space into an installation cavity 10 relatively close to the connecting member 7 and a bucket groove area 9 relatively far from the connecting member 7; the first reinforcing member 1 is arranged in the installation cavity 10 and is connected to the back plate member 5 and the bent plate member 6.

[0033] As an essential construction machinery in engineering operations, an excavator can be applied to excavation operations under various working conditions. The excavator includes a boom and a bucket. Among them, a connection structure for connecting with the boom is provided on the bucket. During the excavation operation, the connection structure needs to bear and transmit loads. Therefore, the strength of the connection structure will directly affect the reliability of the bucket. In this application, the cutting head 11 provided on the main body 4, the main body 4, and the cutting groove area 9 formed between the back plate member 5 of the main body 4 are jointly used for excavation operations; the bent plate member 6, the connection fitting 7 provided on the bent plate member 6, and the back plate member 5 jointly form a connection structure for connecting the main body 4 and the boom. Among them, an installation cavity 10 is formed between the bent plate member 6 and the back plate member 5. By arranging a first reinforcing member 1 in the installation cavity 10 to strengthen the connection between the bent plate member 6 and the back plate member 5, the overall strength of the connection structure is improved, and further the reliability of the excavator bucket 100 is improved.

[0034] Specifically, the function of the first reinforcing member 1 is to increase the force transmission path between the bent plate member 6 and the back plate member 5, so as to share the loads of other force transmission paths of the bent plate member 6 and the back plate member 5. For example, at the connection between the end of the bent plate member 6 and the end of the back plate member 5, and then distribute the loads to each force transmission path to improve the reliability of the excavator bucket 100. The improvement of the reliability of the excavator bucket 100 can enable the excavator to be applicable to excavation operations under various harsh working conditions, and can also reduce the deformation of the excavator bucket 100 to extend its service life.

[0035] It should be noted that in the specific embodiments of this application, "axial direction" refers to the side view direction of the excavator, that is, the left-right direction of the excavator in the conventional state; "radial plane" refers to the projection plane of the main body 4 along the side view direction, that is, the plane perpendicular to the "axial direction"; "circumferential direction" refers to the extension direction of the positive projection of each component with a radian (the main body 4 and the bent plate member 6) in the "radial plane"; "radial direction" refers to the radius direction of the positive projection of each component with a radian (the main body 4 and the bent plate member 6) in the "radial plane"; "radial inner side" and "radial outer side" respectively refer to the side relatively close to the center and the side relatively far from the center along the same "radial direction".

[0036] In the exemplary embodiment of this application, both the main body 4 and the bent plate member 6 are components with a radian. The bent plate member 6 is divided into a connection section close to the main body 4 and an inner bent section far from the main body 4 in the circumferential direction. By keeping the radian at the lap joint of the connection section and the main body 4 consistent, the main body 4 and the bent plate member 6 can be better fitted, thereby improving the welding quality.

[0037] The inner bent section is bent towards the radial inner side and connected to one end of the back plate member 5, and the other end of the back plate member 5 is connected to the main body 4. It can be seen that the back plate member 5 divides the main body 4 into a lap section and a cutting groove section. Among them, the radian of the lap section is consistent with that of the connection section, and the cutting groove section and the radial inner side of the back plate member 5 form the cutting groove area 9.

[0038] There are two cases for the formation of the installation cavity 10: When the connecting section is not in contact with the back plate member 5, the connecting section, the overlapping section, the inner bending section and the back plate member 5 jointly enclose to form the installation cavity 10; When the connecting section extends circumferentially to contact the outer wall of the back plate member 5, the connecting section is welded to the back plate member 5 so that the connecting section, the inner bending section and the back plate member 5 jointly enclose to form the installation cavity 10. In the exemplary embodiment of the present application, the connecting section, the inner bending section and the back plate member 5 jointly enclose to form the installation cavity 10. In this case, the inner and outer sides of the connecting section are respectively connected to the back plate member 5 and the overlapping section, thereby further strengthening the connection between the components.

[0039] In some embodiments, the outer contour of the orthographic projection of the first reinforcing member 1 in the radial plane is the same as the inner contour of the orthographic projection of the installation cavity 10 in the radial plane. In other words, the outer side of the first reinforcing member 1 is completely attached to the inner wall of the bent plate member 6, and the inner side of the first reinforcing member 1 is completely attached to the outer wall of the back plate member 5. It can be seen that the first reinforcing member 1 further strengthens the connection between the back plate member 5 and the bent plate member 6, thereby further strengthening the strength of the connection structure, and further improving the reliability of the excavator bucket 100.

[0040] Preferably, a plurality of first reinforcing members 1 are arranged at intervals along the axial direction. Equivalently, there are multiple force transmission paths between the back plate member 5 and the bent plate member 6. The more force transmission paths between the back plate member 5 and the bent plate member 6, the less load is shared by each first reinforcing member 1, thereby further improving the strength of the connection structure, and further improving the reliability of the excavator bucket 100.

[0041] Obviously, the more the number of the first reinforcing members 1, the greater its load-bearing capacity, but the higher the material cost. Therefore, the number of the first reinforcing members 1 needs to be set by comprehensively considering the load requirements and cost requirements. However, in any case, the load requirements need to be given priority to ensure the strength of the connection structure.

[0042] Furthermore, when the length of the excavator bucket 100 along the axial direction changes, the number of the first reinforcing members 1 arranged should be reasonably increased or decreased. The first reinforcing members 1 are provided with weight-reducing holes to reduce the weight of the excavator bucket, so as to meet the lightweight design.

[0043] As Figure 3 and Figure 4 shown, in some embodiments, a connecting groove is formed on the outer wall surface of the bent plate member 6. The connecting groove extends circumferentially. The connecting member 7 is snap-fitted with the connecting groove, thereby strengthening the connection between the connecting member 7 and the bent plate member 6, and further improving the strength of the connection structure.

[0044] Generally, the number of connecting assemblies 7 is two and they are arranged at intervals along the axial direction. Correspondingly, there are also two connecting grooves provided. The two connecting grooves divide the bent plate member 6 into a middle bent plate section 61 and two side bent plate sections 62 along the axial direction.

[0045] Since there are connecting grooves at the connecting assemblies 7, and the connecting grooves are recessed radially inwards, which can effectively shorten the radial distance between the bent plate member 6 and the back plate member 5, thereby effectively reducing the bending moment load. Therefore, considering the load requirements and cost requirements comprehensively, the first reinforcing member 1 and the connecting assemblies 7 can be arranged axially offset, so as to improve the practicability of the excavator bucket 100.

[0046] In some embodiments, a clamping groove 71 is formed on the connecting assembly 7, and the outer side wall of the bent plate member 6 fits against the bottom wall of the clamping groove 71, that is, the bottom wall of the clamping groove 71 and the bottom wall of the connecting groove fit against each other and are welded, so as to strengthen the connection strength between the connecting assembly 7 and the bent plate member 6, and further improve the reliability of the excavator bucket 100.

[0047] Preferably, a folded corner portion 72 is formed on the side wall of the clamping groove 71. The folded corner portion 72 is folded towards the radially inner side and extends into the shovel groove area 9, so that the folded corner portion 72 and the end of the bent plate member 6 are in circumferential limiting cooperation, thereby strengthening the connection strength between the connecting assembly 7 and the bent plate member 6, and further improving the reliability of the excavator bucket 100.

[0048] Furthermore, the folded corner portion 72 extends radially to fit against and be welded to the outer side wall of the back plate member 5, so as to further strengthen the connection strength between the connecting assembly 7 and the bent plate member 6.

[0049] The connecting assembly 7 is of an ear plate structure and is provided with ear plate holes for connecting with the boom. The detailed structure of the connecting assembly 7 is well-known to those skilled in the art and does not belong to the core improvement part of this application, so it will not be elaborated here.

[0050] In some embodiments, a third reinforcing member 3 connected to the connecting assembly 7 is provided on the outer side wall of the bent plate member 6, so as to increase the connection area between the connecting assembly 7 and the bent plate member 6, and further strengthen the connection strength between the side plate member 8 and the back plate member 5.

[0051] Specifically, the third reinforcing member 3 extends along the axial direction and the axial end fits against and is welded to the side wall surface of the connecting assembly 7. The third reinforcing member 3 is provided with a weight-reducing groove to reduce the size and weight of the third reinforcing member 3, so as to reduce the weight of the excavator bucket 100.

[0052] Furthermore, a plurality of third reinforcing members 3 are arranged at intervals along the circumferential direction of the bent plate member 6. By means of the plurality of third reinforcing members 3, the connection strength between various parts of the bent plate member 6 along the circumferential direction and the connecting assembly 7 is increased, so as to improve the reliability of the excavator bucket 100.

[0053] As Figure 5 shown, in some embodiments, the excavator bucket 100 further includes a side plate member 8 covering the mounting cavity 10 and the cutting groove area 9, and the side plate member 8 is connected to both the axial end of the back plate member 5 and the axial end of the bending plate member 6.

[0054] Specifically, the side plate member 8 completely covers the axial ends of the main body member 4, the back plate member 5, and the bending plate member 6, thereby strengthening the connection between the main body member 4, the back plate member 5, and the bending plate member 6, and further improving the overall strength of the excavator bucket 100.

[0055] Furthermore, the side plate member 8 can also serve as a force transmission path between the main body member 4, the back plate member 5, and the bending plate member 6, thereby sharing the load with the first reinforcing member 1 together, and further improving the reliability of the excavator bucket 100 to adapt to the excavation operation under larger load conditions.

[0056] It should be noted that the side plate member 8 includes an arc plate portion 81, a side guard plate portion 82, and a main cutting edge plate portion 83. The main cutting edge plate portion 83 is spliced with the arc plate portion 81 to cover the mounting cavity 10 and the cutting groove area 9. The side guard plate portion 82 is welded to the outer side wall of the arc plate portion 81 to strengthen the strength of the arc plate portion 81. As for the shapes and sizes of the arc plate portion 81, the side guard plate portion 82, and the main cutting edge plate portion 83, they are well known to those skilled in the art and do not belong to the core inventive points of this application, so they will not be elaborated here.

[0057] In some embodiments, a second reinforcing member 2 is provided on the inner side wall of the back plate member 5 and is connected to the inner side wall of the side plate member 8, thereby increasing the connection area between the side plate member 8 and the back plate member 5, and further strengthening the connection strength between the side plate member 8 and the back plate member 5.

[0058] Specifically, the second reinforcing member 2 is an L-shaped member including two straight edge portions. Among them, one straight edge portion extends axially and fits and is welded to the inner side wall of the back plate member 5; the other straight edge portion extends radially and fits and is welded to the inner side wall of the side plate member 8.

[0059] Since the second reinforcing member 2 is arranged in the cutting groove area 9, it is necessary to minimize the size of the second reinforcing member 2 to avoid affecting the capacity of the cutting groove area 9. The size of the second reinforcing member 2 can be reduced by providing a chamfer at the connection of the two straight edge portions.

[0060] In some embodiments, at least one first reinforcing member 1 is arranged within the axial length range of the second reinforcing member 2, so as to better conduct the load between the first reinforcing member 1 and the second reinforcing member 2, and further improve the bearing capacity of the connection structure.

[0061] Preferably, the first reinforcing member 1 is provided with a weight-reducing hole to reduce the size and weight of the first reinforcing member 1, thereby reducing the weight of the excavator bucket 100.

[0062] Those skilled in the art can understand that the connections between the main body member 4, the bent plate member 6, the back plate member 5, the connecting member 7, the first reinforcing member 1, the second reinforcing member 2, the third reinforcing member 3, and the side plate member 8 are all welded connections. In this application, by providing the first reinforcing member 1 and the side plate member 8, the connection strength between the back plate member 5 and the bent plate member 6 is enhanced, and by the second reinforcing member 2, the connection strength between the back plate member 5 and the side plate member 8 is enhanced. Also, by the third reinforcing member 3, the connection strength between the connecting member 7 and the bent plate member 6 is enhanced, thereby improving the integrity of the excavator bucket 100, and further enhancing the reliability of the excavator bucket 100.

[0063] A specific embodiment of this application further provides an excavator, including the excavator bucket 100. Since the excavator has all the embodiments of the above-mentioned excavator bucket 100, the excavator has all the beneficial effects brought by the excavator bucket 100.

[0064] In the description of this application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0065] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0067] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. An excavator bucket, characterized in that: include: A main body (4) is provided with a shovel head (11) at one circumferential end and a bent plate (6) bent radially inward at the other circumferential end, wherein the bent plate (6) and the radial inner side of the main body (4) form a shovel space, and a connecting member (7) is provided on the outer side wall of the bent plate (6); a back plate member (5) connecting the inner side wall of the bent plate member (6) and the inner side wall of the main body member (4) to separate the bucket space into a mounting cavity (10) relatively close to the connecting member (7) and a scoop groove area (9) relatively far from the connecting member (7); and A first reinforcing member (1) is arranged in the installation cavity (10) and is connected to the back plate member (5) and the bent plate member (6).

2. The excavator bucket according to claim 1, characterized in that: The outer contour of the orthographic projection of the first reinforcement member (1) in the radial plane is the same as the inner contour of the orthographic projection of the mounting cavity (10) in the radial plane.

3. The excavator bucket according to claim 1, characterized in that: A plurality of the first reinforcement members (1) are arranged at intervals along the axial direction.

4. The excavator bucket according to claim 1, characterized in that: The first reinforcement member (1) and the connecting member (7) are arranged staggered along the axial direction.

5. The excavator bucket according to claim 1, characterized in that: The excavator bucket (100) further comprises a side plate member (8) covering the mounting cavity (10) and the shovel groove area (9), wherein the side plate member (8) is connected to the axial end of the back plate member (5) and the axial end of the bent plate member (6).

6. The excavator bucket according to claim 5, characterized in that: The inner side wall of the back panel (5) is provided with a second reinforcing member (2) connected to the inner side wall of the side panel (8).

7. The excavator bucket according to claim 6, characterized in that: At least one of the first reinforcement members (1) is arranged within the axial length range of the second reinforcement member (2).

8. The excavator bucket according to claim 1, characterized in that: The first reinforcement member (1) is provided with a weight-reducing hole; and / or A clamping groove (71) is formed on the connecting member (7), the outer side wall of the bent plate member (6) is in contact with the bottom wall of the clamping groove (71), and the groove side wall of the clamping groove (71) is formed with a folded corner portion (72), and the folded corner portion (72) is limitedly matched with the end portion of the bent plate member (6).

9. The excavator bucket according to claim 1, characterized in that: The outer side wall of the bent plate member (6) is provided with a third reinforcing member (3) connected to the connecting member (7).

10. An excavator, characterized in that: It comprises an excavator bucket (100) according to any one of claims 1 to 9.

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