Bucket and excavator

Abstract

The utility model relates to the field of engineering machinery, and discloses a bucket and an excavator. The bucket comprises a bucket body comprising a bucket bottom plate located at the bottom of a bucket cavity; the rear end of the main blade plate is fixedly connected to the front end of the bucket bottom plate, and a plurality of bucket teeth which are transversely arranged at intervals are arranged at the front end of the main blade plate; the upper surface of the front end of the bucket bottom plate and the upper surface of the rear end of the main blade plate are arranged in a non-horizontal alignment mode. The excavator comprises the bucket. According to the bucket, the upper surface of the front end of the bucket bottom plate and the upper surface of the rear end of the main blade plate are arranged in a non-horizontal alignment mode, so that a certain step quantity is formed between the upper surface of the front end of the bucket bottom plate and the upper surface of the rear end of the main blade plate, the filling area of a welding seam is larger, and the welding strength is improved. Moreover, when the bucket is designed, the relative position of the main blade plate is fixed, and the design position of the bucket bottom plate can be staggered from the main blade plate, so that the bucket capacity is increased, more materials can be accommodated, the bucket radius is not increased, and the digging force of the bucket is not reduced.

Description

Technical Field

[0001] The present application belongs to the field of engineering machinery, and specifically, relates to a bucket and an excavator. Background Art

[0002] An excavator, also known as a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and loads the excavated materials into a transport vehicle or unloads them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rocks. The bucket is an important structural component of the excavator. The bucket usually includes a main blade plate and a bucket bottom plate. The main blade plate and the bucket bottom plate are flush and are generally connected by a filler weld or a butt weld, but the connection strength is limited. Summary of the invention

[0003] The purpose of the present application is to provide a bucket and an excavator to improve the connection strength between the bottom plate and the main blade plate and to increase the bucket capacity.

[0004] To achieve the above object, the present application provides a bucket, the bucket comprising:

[0005] A bucket body, including a bucket bottom plate located at the bottom of the bucket cavity;

[0006] A main blade plate, the rear end of which is fixedly connected to the front end of the bucket bottom plate, and the front end of the main blade plate is provided with a plurality of bucket teeth arranged at intervals in a transverse direction;

[0007] The front end upper surface of the bucket bottom plate and the rear end upper surface of the main blade plate are arranged in a non-horizontally aligned manner.

[0008] In some embodiments, the front end upper surface of the bucket bottom plate is located at a height lower than the rear end upper surface of the main blade plate.

[0009] In some embodiments, a blunt-edged groove is formed at the front end of the bucket bottom plate.

[0010] In some embodiments, a filling fillet weld is formed between the front end upper surface of the bucket bottom plate and the rear end upper surface of the main blade plate, the filling fillet weld is filled in the groove between the blunt edge groove of the bucket bottom plate and the rear end surface of the main blade plate, and the filling fillet weld overlaps the front end upper surface of the bucket bottom plate.

[0011] In some embodiments, several teeth are arranged in a non-aligned manner.

[0012] In some embodiments, the main blade plate includes a special-shaped front end edge, a plurality of bucket tooth seats are installed on the special-shaped front end edge at intervals, and a plurality of bucket teeth are installed on the plurality of bucket tooth seats in a one-to-one correspondence.

[0013] In some embodiments, the plurality of bucket teeth include a centrally arranged middle bucket tooth and lateral bucket teeth distributed laterally, and a tooth tip of the middle bucket tooth is located ahead of a tooth tip of the lateral bucket teeth.

[0014] In some embodiments, a line connecting the tooth tips of a plurality of bucket teeth is formed as an arc line.

[0015] In some embodiments, the tooth tips of the plurality of bucket teeth are uneven in height direction.

[0016] The present application provides an excavator, which adopts the above-mentioned bucket.

[0017] In the technical solution of the present application, the front upper surface of the bucket bottom plate and the rear upper surface of the main blade plate are arranged in a non-horizontal manner, so that a certain step is formed between the front upper surface of the bucket bottom plate and the rear upper surface of the main blade plate, so that the weld filling area is larger and the welding strength is improved. Moreover, when designing the bucket, since the relative position of the main blade plate is fixed, the design position of the bucket bottom plate can be staggered with the main blade plate to increase the bucket capacity and accommodate more materials without increasing the bucket radius and reducing the digging force of the bucket.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of an excavator bucket in the prior art;

[0021] Figure 2 for Figure 1 A partial enlarged view of the L in the middle.

[0022] Figure 3 It is a structural schematic diagram of a bucket according to a specific embodiment of the present application;

[0023] Figure 4 for Figure 3 Bottom view of the middle bucket;

[0024] Figure 5 for Figure 4 Sectional view at the AA position;

[0025] Figure 6 for Figure 5 A partial enlarged view of the fillet weld at position I;

[0026] Figure 7 for Figure 5A partial enlarged view of the fillet weld at position I without filling.

[0027] Description of Reference Numerals

[0028] 1 Bucket cavity P2 rear end upper surface

[0029] 2 Main blade S arc line

[0030] 3 Bucket bottom plate H step amount

[0031] 4 Bucket tooth seat B Blunt edge bevel

[0032] 5 Bucket tooth G groove

[0033] 6 Fillet weld at hinge W

[0034] P1 Front upper surface DETAILED DESCRIPTION

[0035] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0036] A bucket and an excavator according to the present application will be described below with reference to the accompanying drawings.

[0037] The present application discloses a novel bucket, such as Figures 3 to 7 As shown, a bucket in a specific embodiment includes:

[0038] The bucket body comprises a bucket bottom plate 3 located at the bottom of the bucket cavity 1;

[0039] A main blade plate 2, the rear end of which is fixedly connected to the front end of a bucket bottom plate 3, and the front end of the main blade plate 2 is provided with a plurality of bucket teeth 5 arranged in a transverse interval;

[0040] The front end upper surface P1 of the bucket bottom plate 3 and the rear end upper surface P2 of the main blade plate 2 are arranged in a non-horizontally aligned manner.

[0041] In the prior art, Figure 1 and Figure 2As shown, since the thickness of the main blade plate 2 may be relatively small and considering the convenience of welding the main blade plate 2 to the bucket bottom plate 3, the front upper surface P1 of the bucket bottom plate 3 and the rear upper surface P2 of the main blade plate 2 are often arranged horizontally and connected by a filling weld or a butt weld. The front upper surface P1 of the bucket bottom plate 3 and the rear upper surface P2 of the main blade plate 2 of the present application are not arranged horizontally, so that a certain step amount H can be formed between the front upper surface P1 and the rear upper surface P2 of the main blade plate 2, so that the main blade plate 2 and the bucket bottom plate 3 can be connected more securely at the step amount H by a fillet weld or a filling fillet weld. Compared with the prior art, since the filling fillet weld can better withstand the shear stress to which the bucket is subjected during operation, the connection strength between the bottom plate and the main blade plate of the present application is also improved.

[0042] In this embodiment, if Figure 6 and Figure 7 As shown, the front end upper surface P1 of the bucket bottom plate 3 is located at a height lower than the rear end upper surface P2 of the main blade plate 2 .

[0043] The digging force of the bucket is usually affected by the distance between the hinge 6 of the bucket and the excavator and the front end surface of the main blade plate 2 (i.e., the bucket radius). The larger the bucket radius, the smaller the digging force of the bucket. The front end upper surface P1 of the bucket bottom plate 3 of the present application is not horizontally aligned with the rear end upper surface P2 of the main blade plate 2, and the front end upper surface P1 of the bucket bottom plate 3 is located at a height lower than the rear end upper surface P2 of the main blade plate 2. Figures 3 to 7 , so that a certain step amount H is formed between the front upper surface P1 of the bucket bottom plate 3 and the rear upper surface P2 of the main blade plate 2. Usually, when designing a bucket, the relative position relationship between the hinge 6 and the main blade plate 2 is fixed, and the bucket bottom plate 3 can be designed to be further away from the hinge 6, that is, when the relative position relationship between the hinge 6 and the main blade plate 2 remains fixed, the design setting of the bucket bottom plate 3 is offset downward, so that the bucket capacity of the present application is larger, and more materials can be accommodated without increasing the bucket radius, which also ensures that the digging force of the bucket of the present application will not be reduced, and the economy is good.

[0044] In this embodiment, if Figure 6 As shown, a blunt-edged groove B is formed at the front end of the bucket bottom plate 3.

[0045] Specifically, see Figure 6 In the process of welding the bucket bottom plate 3 and the main blade plate 2, the blunt edge groove B is used to guide the molten metal to form, and can also reduce the dilution rate, that is, the fusion ratio, and reduce the change of the weld metal composition; the blunt edge of the blunt edge groove B can prevent the root of the bucket bottom plate 3 from being burned through to ensure the welding quality. This arrangement can further ensure the connection strength between the bucket bottom plate 3 and the main blade plate 2 while increasing the bucket capacity.

[0046] In this embodiment, if Figure 6 As shown, a filling fillet weld W is formed between the front end upper surface P1 of the bucket bottom plate 3 and the rear end upper surface P2 of the main blade plate 2, the filling fillet weld W is filled in the groove G between the blunt edge groove B of the bucket bottom plate 3 and the rear end surface of the main blade plate 2, and the filling fillet weld W overlaps the front end upper surface P1 of the bucket bottom plate 3.

[0047] Specifically, see Figure 6 The overlapping setting of the filling fillet weld W and the front end upper surface P1 of the bucket bottom plate 3 can increase the contact area between the filling fillet weld W and the bucket bottom plate 3, enhance the strength and quality of the weld, thereby greatly improving the connection strength between the bucket bottom plate 3 and the main blade plate 2.

[0048] In this embodiment, if Figure 4 As shown, several teeth 5 are arranged in a non-aligned manner.

[0049] Specifically, the bucket teeth 5 provided on the main blade 2 are the parts that directly start to contact with the material. In the prior art, the bucket teeth 5 are usually arranged in an aligned manner, that is, the tooth tips of multiple bucket teeth 5 are on the same straight line. Therefore, when the excavator is operating, multiple bucket teeth 5 will be inserted into the material almost at the same time, which makes the bucket have a large resistance when inserting the material, affecting the working efficiency of the excavation operation. Compared with the prior art, the bucket teeth 5 of the present application are arranged in a non-aligned manner, that is, the tooth tips of multiple bucket teeth 5 are not on the same straight line or even on the same plane, so that multiple bucket teeth 5 moving in the same direction can be inserted into the material non-simultaneously, thereby reducing the resistance of the bucket teeth 5 in the process of inserting the material, thereby improving the working efficiency of the excavation operation.

[0050] In this embodiment, if Figure 3 and Figure 4 As shown, the main blade plate 2 includes a special-shaped front end edge, on which a plurality of bucket tooth seats 4 are installed at intervals, and a plurality of bucket teeth 5 are installed on the plurality of bucket tooth seats 4 in a one-to-one correspondence.

[0051] Specifically, the special-shaped setting of the front edge of the main blade plate 2 enables the bottom of the bucket tooth seat 4 to be arranged on the main blade plate 2 in a non-aligned arrangement, that is, each bucket tooth seat 4 is arranged in a non-linear manner. In this way, the tooth tips of the standard-sized bucket teeth 5 installed on the bucket tooth seat 4 can also be arranged in a non-aligned manner, without the need to replace the non-standard-sized bucket teeth 5 with higher costs, and the replacement of the bucket teeth 5 is convenient; thirdly, the special-shaped setting of the front edge of the main blade plate 2 can also reduce the materials required for the molding of the main blade plate 2 to reduce costs; thirdly, the special-shaped setting of the front edge of the main blade plate 2 can reduce the resistance of the main blade plate 2 during the excavation operation and reduce the wear between the bucket and the materials (such as soil and rocks).

[0052] In order to further optimize the resistance of the bucket teeth 5 during the insertion of materials to improve the excavation efficiency, in this embodiment, the plurality of bucket teeth 5 include a centrally arranged middle bucket tooth and lateral bucket teeth distributed laterally, and the tooth tip of the middle bucket tooth is located before the tooth tip of the lateral bucket tooth.

[0053] Specifically, such an arrangement can ensure that the bucket is subjected to balanced force when the bucket teeth 5 are inserted into the material, thereby improving reliability and service life.

[0054] Based on the above arrangement of the bucket teeth 5, in this embodiment, Figure 4 As shown, the tooth tip connection line between the tooth tips of the plurality of bucket teeth 5 forms an arc line S.

[0055] Specifically, see Figure 4 Such an arrangement enables multiple bucket teeth 5 moving in the same direction to contact the material in sequence according to the arrangement of the arc line S, thereby effectively reducing the resistance of the tooth tip of the bucket tooth 5 during the insertion of the material, and the force on the bucket is balanced during the insertion of the material, which is beneficial to the reliability and service life of the bucket.

[0056] Of course, the tooth tip connection line between the tooth tips of several bucket teeth 5 is not limited to being formed as an arc line S, and can also be realized by other settings that are beneficial to reducing the resistance of the tooth tips of the bucket teeth 5 during the insertion process of the material, such as a broken line shape.

[0057] In addition to the above-mentioned non-aligned arrangement of the tooth tips of the bucket teeth 5 in the front-to-back direction, in some embodiments, the tooth tips of the bucket teeth 5 may be arranged unevenly in the height direction.

[0058] Specifically, the tooth tips of the bucket teeth 5 are not in the same front and rear positions. This arrangement can further control the contact mode between the tooth tips of the bucket teeth 5 and the material during the excavation operation, thereby further optimizing the gradual increase in the resistance of the tooth tips of the bucket teeth 5 during the insertion of the material, ensuring the balanced force of the bucket, and improving the reliability and service life of the bucket.

[0059] The present application also protects an excavator which adopts the above-mentioned bucket.

[0060] Specifically, since the connection strength between the bucket bottom plate 3 and the main blade plate 2 of the bucket of the present application is higher, the bucket capacity is higher, and the resistance of the bucket teeth 5 inserting into the material is smaller, the economy, reliability and service life of the bucket are better, thereby the economy and reliability of the excavator of the present application are also improved.

[0061] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Claims

1. A bucket, characterized in that: The bucket comprises: The bucket body comprises a bucket bottom plate (3) located at the bottom of the bucket cavity (1); A main blade plate (2), the rear end of the main blade plate (2) being fixedly connected to the front end of the bucket bottom plate (3), and the front end of the main blade plate (2) being provided with a plurality of bucket teeth (5) arranged in a transverse interval; The front end upper surface (P1) of the bucket bottom plate (3) and the rear end upper surface (P2) of the main blade plate (2) are arranged in a non-horizontal alignment.

2. The bucket according to claim 1, characterized in that: The position height of the front end upper surface (P1) of the bucket bottom plate (3) is smaller than the rear end upper surface (P2) of the main blade plate (2).

3. The bucket according to claim 2, characterized in that: The front end of the bucket bottom plate (3) is formed with a blunt-edged bevel (B).

4. The bucket according to claim 3, characterized in that: A fillet weld (W) is formed between the front end upper surface (P1) of the bucket bottom plate (3) and the rear end upper surface (P2) of the main blade plate (2), the fillet weld (W) is filled in the groove groove (G) between the blunt edge groove (B) of the bucket bottom plate (3) and the rear end surface of the main blade plate (2), and the fillet weld (W) overlaps the front end upper surface (P1) of the bucket bottom plate (3).

5. The bucket according to any one of claims 1 to 4, characterized in that: A plurality of bucket teeth (5) are arranged in a non-aligned manner.

6. The bucket according to claim 5, characterized in that: The main blade plate (2) comprises a special-shaped front end edge, on which a plurality of bucket tooth seats (4) are installed at intervals, and a plurality of bucket teeth (5) are installed on the plurality of bucket tooth seats (4) in a one-to-one correspondence.

7. The bucket according to claim 6, characterized in that: The plurality of bucket teeth (5) include a centrally arranged middle bucket tooth and lateral bucket teeth distributed laterally, and the tooth tips of the middle bucket teeth are located in front of the tooth tips of the lateral bucket teeth.

8. The bucket according to claim 7, characterized in that: The tooth tip connection line between the tooth tips of the plurality of bucket teeth (5) forms a circular arc line (S).

9. The bucket according to claim 6, characterized in that: The tooth tips of the plurality of bucket teeth (5) are uneven in height direction.

10. An excavator, characterized in that: The excavator includes the bucket according to any one of claims 1 to 9.

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