Bucket with multi-radius wrap

Abstract

A bucket (12) for a working machine (1) is disclosed. The bucket has a base plate (23) at a top end (17) of the bucket, a lip plate (31) at a bottom end (29), and a pair of side plates (19, 20) extending downwardly from the base plate to the bottom end. The wrap (38) has a first curved portion (41) extending to the first flat portion (40), the first curved portion having a first radius of curvature (B). The first flat portion extends to a second curved portion (39) having a second radius of curvature (A). The first flat portion extends between the first curved portion and the second curved portion.

Description

Technical Field

[0001] This disclosure generally relates to earthmoving buckets, and more specifically, to a bucket for use with construction and earthmoving machinery. Background Technology

[0002] In construction, heavy machinery such as excavators and mining shovels are typically used to remove soil materials. These construction machines usually have a traversing body and a rotating body, the rotating body being rotatable relative to the traversing body to rotate the working tool attached to it. The working tool is typically attached to the rotating body via a linkage that may include a boom and arm. Many of these working tools are buckets that undergo severe wear, especially when used with abrasive materials or when the bucket tends to excessively rub or impact the excavated material. The bottom corners and surfaces of the bucket are particularly prone to wear because they are often the points of contact with abrasive and excavated materials. This continuous contact with these bottom corners and surfaces leads to uneven wear of the bucket, requiring rebuilding the bucket even if the rest of the bucket is not worn.

[0003] U.S. Patent 11,391,010 describes a backhoe excavator bucket having a bottom plate extending from a front cutting edge to a top assembly that connects the bucket to an earthmoving or material handling machine. The backhoe excavator bucket also has two opposing side plates and a plurality of wear-resistant components extending along the edges of the bottom plate and the side plates on both sides of the bucket.

[0004] While effective, improved bucket designs are still needed for operating machines used in high-wear applications such as the construction and mining industries. Summary of the Invention

[0005] According to one aspect of this disclosure, a bucket for a working machine is disclosed. The bucket has a base plate at a top end and a lip plate at a bottom end. A first side plate and a second side plate extend downward from the base plate to the bottom end. A package is attached to the lip plate and the base plate and has a first curved portion having a first radius of curvature, extending from the bottom end of the bucket to the first flat portion. The first flat portion extends to the second curved portion having a second radius of curvature, and the second curved portion extends to the base plate. The first flat portion, extending between the first curved portion and the second curved portion, is generally planar.

[0006] According to another aspect of this disclosure, a working machine is disclosed. The working machine may include a base configured to be supported on a ground surface, a rotating frame rotatable about the base, and an arm capable of supporting a working tool such as a bucket. The bucket is supported at a base plate and is pivotally connected to the arm. The bucket has a first side plate and a second side plate extending downward from the base plate to a bottom end of the bucket. The bottom end of the bucket has a lip plate. A package has a first curved portion at the bottom end of the bucket, the first curved portion extending to a first flat portion of the package. The first flat portion extends to a second curved portion of the package, the second curved portion itself extending to the base plate. The first curved portion has a first radius of curvature, and the second curved portion has a second radius of curvature greater than the first radius of curvature.

[0007] According to another aspect of this disclosure, a method for manufacturing a bucket is disclosed. The method includes first providing a base plate defining an inner cavity top plate of the bucket, and a lip plate defining a lip plate at the bottom end of the bucket. Then, a package is extended from the lip plate to the base plate of the bucket. The package has a first curved portion having a first radius of curvature, extending from the bottom end of the bucket to the first flat portion of the package, and the first flat portion extending to the second curved portion of the package having a second radius of curvature. The second curved portion extends to the base plate. Then, a first curved corner and a second curved corner are attached. Finally, a first side plate and a second side plate are extended from the base plate to the curved corner.

[0008] These and other aspects and features of this disclosure will be more readily understood when read in conjunction with the accompanying drawings. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a work machine with a bucket.

[0010] Figure 2 This is a perspective view of an exemplary bucket according to this disclosure.

[0011] Figure 3 Based on this disclosure Figure 2 A cross-sectional side view of the bucket.

[0012] Figure 4 Based on this disclosure Figure 2 A cross-sectional side view of the bucket.

[0013] Figure 5 Based on this disclosure Figure 2 A bottom view of the bucket.

[0014] Figure 6Based on this disclosure Figure 2 A perspective view of the bucket from below.

[0015] Figure 7 Based on this disclosure Figure 2 A bottom perspective view of the bucket, in which the wear strips, wear brackets, and side wear plates have been removed.

[0016] Figure 8 Based on this disclosure Figure 2 A side view of the bucket.

[0017] Figure 9 Based on this disclosure Figure 2 A partial view of the first curved corner of the bucket.

[0018] Figure 10 Based on this disclosure Figure 2 A partial view of the curved bracket of the bucket.

[0019] Figure 11 It is a flowchart of a series of steps that may be involved in the manufacture of a bucket according to various aspects of this disclosure. Detailed Implementation

[0020] Reference Figure 1 The diagram illustrates a working machine 1. The working machine 1 can be a stationary or mobile machine performing some type of operation associated with industries such as construction, mining, agriculture, transportation, or other industries known to utilize heavy equipment. For example, the working machine 1 can be an earthmoving machine, such as an excavator as shown, or a mining shovel, backhoe, loader, truck, or any other earthmoving machine.

[0021] As in Figure 1The work machine 1, illustrated as an excavator in an exemplary embodiment, includes a base 2 supported on the ground surface. The base 2 supports a rotating frame 3 rotatably attached to the base 2, and the rotating frame 3 is rotatable up to 360 degrees relative to the axis of the base 2. The base 2 is supported on a tracked (or wheeled, as discussed below) travel body 4, although in another exemplary embodiment, the travel body 4 may support wheels or other mobile support devices. An operator's cab 5, containing operator controls (not shown) necessary for operating the work machine 1, is mounted on the rotating frame 3. The operator controls (not shown) may include any screens, instruments, lights, etc., for displaying operating information, alarms, or any status of the work machine. The operator controls may also include any controls for controlling any movement of the implements (discussed below), the frame, linkages, or any part of the work machine 1. In one exemplary embodiment, the operator controls are designed to receive input from an operator of the work machine located in the operator's cab 5 or an operator remotely operating the work machine 1, and to send movement signals to a controller (not shown) of the work machine 1, some of which are discussed below. In another exemplary embodiment, the working machine 1 is mechanically operated, such as through a direct mechanical or electrical connection from operator controls to a hydraulic system.

[0022] The rotating frame 3 has a motor 7, and in this exemplary embodiment, an internal combustion engine such as a diesel engine is used as the engine for power generation; however, in another exemplary embodiment, another power generation device such as an electric motor, a hybrid motor, etc., is used. The motor 7 is used to provide power for the movement of the working machine 1, such as providing power for the traveling body 4 to move the working machine 1 on the ground surface, for the rotation of the rotating frame 3, and for any movement of any implements or linkage systems of the working machine 1.

[0023] exist Figure 1In an exemplary embodiment, the working tool 8 is attached to the rotating frame 3. Specifically, the working tool 8 is raised and lowered to the rotating frame 3 via a linkage system 9. The linkage system 9 includes a boom 10, a boom 11, and a bucket 12, the boom being pivotally attached to the distal end of the boom 10, and the bucket being pivotally attached to the distal end of the boom 11. The bucket 12 is capable of digging or holding a predetermined object, such as soil material. The positions of the boom 10, boom 11, and bucket 12 are controlled by a motor 7 and a hydraulic system 13, the hydraulic system including the motor 7 and any hydraulic actuators, cylinders, and additional hydraulic motors (not shown) attached to the base frame 2, the rotating frame 3, the boom 10, the boom 11, and the bucket 12. More specifically, the motor and hydraulic system 13 enable the boom 10, pivotally attached to the rotating frame 3, to be raised and lowered, the boom 11, pivotally attached to the boom 10, to be raised and lowered, and the bucket 12, pivotally attached to the boom 11, to be raised and lowered. As discussed above, the hydraulic system 13 can be directly controlled by an operator control or can receive movement signals from a controller. In one exemplary embodiment, the operator control receives input from an operator, sends the received input to a controller, and the controller sends a movement signal to the hydraulic system 13.

[0024] Reference Figure 2-6 The image shows a bucket 12 according to an exemplary embodiment. The bucket 12 includes a first cavity wall 13 and a second cavity wall 14. The first and second cavity walls 13 and 14 define an inlet 15, and specifically define the width of the inlet 15, through which the bucket 12 is filled with soil material during excavation operations. The interior of the bucket 12 defines a cavity 44, which is an internal space of the bucket 12 capable of being filled during excavation operations.

[0025] The hinge plate assembly 16 extends along the top end 17 of the bucket 12 and has a pair of hinge plates 18 that extend generally parallel to the first side plate 19 and the second side plate 20 of the bucket 12. Each hinge plate has a front hole 21 and a rear hole 22. The front hole 21 of each hinge plate 18 is axially aligned and configured to receive and support a lever pin (not shown) passing through the linkage assembly 9 of the working machine 1. The rear hole 22 of the hinge plate 22 is axially aligned and configured to receive and support a tool actuator pin (not shown) passing through the tool actuator of the working machine 1. In another exemplary embodiment, the bucket 12 can be attached to the arm 11 and operated around the arm 11 using a different number of holes or attachment devices. For example, the hinge plate 18 may include one or more openings or recesses to reduce the weight of the hinge plate, or it may be relatively elongated and include a tapered section that extends to provide additional support to the bucket 12.

[0026] The hinge plate assembly 16 also has a base plate 23 extending between the first cavity wall 13 and the second cavity wall 14. The base plate 23 forms a support base for the bucket 12, wherein the hinge plate 18 is attached to the base plate 23. The hinge plate assembly 16 also includes an upper wrapping plate 24 that extends laterally between the first cavity wall and the second cavity walls 13, 14 and is attached to the front end 25 of the base plate at a generally linear first segment 26 and to the rear end 26 of the base plate at a curved or arcuate second segment 27. In one exemplary embodiment, the upper wrapping plate 24 may be a one-piece continuous jointless member extending between the sides of the bucket 12; in another exemplary embodiment, the upper wrapping plate 23 may be a one-piece member formed of multiple components joined together (such as by welding). The bottom surface of the base plate 45 defines the inner cavity top plate of the cavity 44, or in other words, defines the top surface of the cavity 44 of the bucket 12.

[0027] The first side plate 19 and the second side plate 20 extend downward from the base plate 23 to the bottom end 29 of the bucket 12, the bottom end including the cutting edge 30 of the bucket 12. The cutting edge 30 of the bucket 12 includes bottom surfaces 33, 34 that are connected to each of the first side cavity wall and the second side cavity walls 13, 14. Figure 7 The lip plate 31 may include multiple adapters 32. Figure 8 Each of the plurality of adapters is configured to retain the piercing digging tooth 35. In one exemplary embodiment, the number of adapters including multiple adapters is between 5 and 10, but any number of adapters suitable for digging operations can be used. Adapter 32 may extend outward in a direction away from the inlet 15. Figure 3 As shown, the lip plate 31 has a top surface that defines a lip plane 37. In one exemplary embodiment, the lip plane forms an angle of 1 to 5 degrees downward relative to the wrapper 38, and specifically an angle downward relative to the second flat portion of the wrapper (discussed below).

[0028] The package 38 forms the top wall, rear wall, and bottom wall of the bucket 12. The package 38 is a shaped plate composed of one or more parts, extending from the lip plate 31 to the base plate 23 of the bucket 12. Specifically, a second flat portion 42 of the package 38 extends from the lip plate 31 to a first curved portion 41, wherein a first curved portion 39 extends from the second flat portion 41 to a first flat portion 40 of the package 38. The first flat portion 40 of the package 38 extends to the second curved portion 39 of the package 38. Thus, the second flat portion 42 of the package 38 is connected to the cutting edge 30, or more specifically, in one exemplary embodiment, to the lip plate 31 of the cutting edge 30. In one exemplary embodiment, the package is a monolithic construction made from a single piece, but in another exemplary embodiment, the package may be made from two or more parts joined together to form the package.

[0029] In one exemplary embodiment, the first curved portion 41 has a first radius of curvature A, such as Figure 4 As shown, and the second curved portion 39 has a second radius of curvature B, as Figure 3 As shown in the diagram. The radius of curvature is the radius of an approximate circle formed by the arcs of the first and second curved portions of the package 38, as... Figure 3-4 The cross-sectional view is shown in the figure. In this exemplary embodiment, the first radius of curvature A is smaller than the second radius of curvature B.

[0030] Furthermore, the first flat portion and the second flat portion 40, 42 are in Figure 3-4 The cross-sectional views are shown as either generally planar or flat, wherein the first flat portion 30 connects the first curved portion 41 of the package 38 to the second curved portion 39 of the package 38.

[0031] like Figure 5 As best shown, the package 38 has a concave shape because its middle portion is thinner than its top and bottom, or in other words, its middle portion is not as wide as the end of the package 38 that connects to the base plate 23, nor as wide as the end of the package 38 that connects to the lip plate 31. This concave shape allows for the connection of the first curved corner 48 and the second curved corner 52 of the bucket 12. The first curved corner 48 and the second curved corner 52 are curved corners of the bucket, defining the inner curved corner of the cavity 44 and the curved corner on the outer bottom end 29 of the bucket.

[0032] like Figure 9 As best shown, the first curved corner 48 extends from the first side 87 of the bucket 12 to the first side plate 19 and defines the first corner of the bucket. In an exemplary embodiment, the first curved corner 48 comprises three parts: a constant radius of curvature portion 49, a first reduced radius of curvature portion 51, and a second reduced radius of curvature portion 50. As shown, the constant radius of curvature portion 51 has a constant radius of curvature, and the reduced radius of curvature portions 51 and 50 have reduced radii of curvature.

[0033] like Figure 2As shown, the constant radius of curvature portion 49 defines a first corner arc surface 70 in the cavity 44 of the bucket. In one exemplary embodiment, the constant radius of curvature portion 49 is attached to the package and extends along the package from the second curved portion 39 through the second flat portion 42. In another exemplary embodiment, the constant radius of curvature portion 49 extends from the first curved portion 41 of the package 38 through the first flat portion 40 of the package, a first reduced radius of curvature portion 51 extends from the constant radius of curvature portion 49 toward the lip plate, and a second reduced radius of curvature portion 50 extends from the constant radius of curvature portion 49 toward the base plate 23.

[0034] Similar to the first curved corner 48, Figure 5 A second curved corner 52 is shown. The second curved corner 52 extends from the second side 88 of the bucket 12 to the second side plate 20 and defines a second corner of the bucket. In one exemplary embodiment, the second curved corner 52 comprises three parts: a constant radius of curvature portion 53, a reduced radius of curvature portion 55, and a second reduced radius of curvature portion 54. As shown, the constant radius of curvature portion 53 has a constant radius of curvature, and the reduced radius of curvature portions 54 and 55 have reduced radii of curvature.

[0035] The second curved corner 52 has a constant radius of curvature portion 53 that defines a second corner arcuate surface (not shown) in the cavity 44 of the bucket 12. In one exemplary embodiment, the constant radius of curvature portion 53 is attached to the package and extends along the package from the second curved portion 39 through the second flat portion 42. In another exemplary embodiment, the constant radius of curvature portion 53 extends from the first curved portion 41 of the package 38 through the first flat portion 40 of the package, a first reduced radius of curvature portion 55 extends from the constant radius of curvature portion 49 toward the lip plate 31, and a second reduced radius of curvature portion 54 extends from the constant radius of curvature portion 53 toward the base plate 23.

[0036] Go to Figure 8 The bucket 12 may also include wear plates on either side or both sides of the bucket 12 to support wear plates, strips, and / or brackets. For example, as Figure 8 As shown, the first side plate shows an exemplary embodiment of a bucket 12 with wear-resistant strips, which contrasts with a bucket where the wear-resistant strips have been removed. Figure 7 The views create contrast. Figure 8 In an exemplary embodiment, the abrasion plate 65 is attached to the first plate 19 by welding or any other attachment means. The abrasion plate, strip, and / or bracket may be formed of any material (including any metal or alloy) that is harder than the material used to form the package 38.

[0037] Extending from and attached to the wear-resistant plate 65 are curved brackets 60 with various radii of curvature. For example... Figure 10 As shown, multiple bracket members 60 are curved and configured to wrap around a first curved corner 48, and another set of bracket members 60 is used for a second curved corner 52. Therefore, each bracket member 60 of the wear-resistant plate material can have a different radius of curvature, depending on the radius of curvature of the curved corner that the member is to wrap around. Figure 6 As shown, a wear-resistant strip 62 of the wear-resistant plate material is attached to a bracket 60 extending along the bottom surface of the bucket 12. Thus, from the wear-resistant plate 65, the attached bracket 60 extends around the first curved corner 48 to the wear-resistant strip 62, which crosses the bottom of the bucket 12 and extends to another bracket 60 on the opposite side of the bucket 12.

[0038] Industrial applicability

[0039] Generally, the teachings of this disclosure can be applied to many industries, including but not limited to excavators. More specifically, the teachings of this disclosure can be applied to any industry that uses a bucket or shovel in excavation operations, such as, but not limited to, mining, excavation, agriculture, construction, etc.

[0040] During excavation or construction operations involving the bucket, the bucket's web may scrape the ground and construction site more frequently than the rest of the bucket, resulting in uneven wear patterns on the sides of the bucket's web. (Continue to refer to...) Figure 1-10 , Figure 11 A method for constructing a bucket with a double-radius wrapper having a downwardly angled cutting edge that reduces material resistance in the relevant area of ​​the wrapper during digging operations is described.

[0041] Starting at step 1002, a lip plate 31 defining the bottom lip plane 37 of the bucket and a base plate 23 defining the inner cavity top plate 45 are provided. At step 1004, a wrapper 38 is extended from the bottom end 29 of the bucket 12 to the base plate 23. The wrapper 38 has a first curved portion 41 having a first radius of curvature (A), which extends from the bottom end 29 of the bucket 12 to a first flat portion 40 of the wrapper 38. The first flat portion 40 extends from the first curved portion 41 to a second curved portion 39 of the wrapper 38 having a second radius of curvature (B), and the second curved portion 39 extends from the first flat portion 40 to the base plate 23. At step 1006, a first curved corner 48 and a second curved corner 52 are attached to the bucket. Finally, at step 1008, a first side plate 19 extends from the base plate 23 to the first curved corner 48, and a second side plate 20 extends from the base plate 23 to the second curved corner 52.

[0042] Although the foregoing text has described in detail many different embodiments, it should be understood that the legitimate scope of protection is defined by the wording of the claims set forth at the end of this patent. The detailed descriptions are to be interpreted as exemplary only, and not every possible embodiment is described, as describing every possible embodiment would be impractical, if not impossible. Many alternative embodiments can be implemented using present technology or technology developed after the date of this patent application, which still fall within the scope of the claims defining the scope of protection.

Claims

1. A bucket (12) for a working machine (1), comprising: The lip plate (31) at the bottom end (29) of the bucket; The base plate (23) at the top (17) of the bucket; The first side plate (19) and the second side plate (20) extend downward from the base plate to the bottom end of the bucket. as well as A package (38) attached to the lip plate and the substrate, the package comprising: A first curved portion (41) with a first radius of curvature (B) at the bottom end of the bucket, the first curved portion extending to a first flat portion (40). A second curved portion (39) having a second radius of curvature (A) extends from the first flat portion toward the substrate, and The first flat portion connecting the first curved portion and the second curved portion is generally planar.

2. The bucket according to claim 1, wherein the first radius of curvature is smaller than the second radius of curvature.

3. The bucket according to claim 1, wherein the second flat portion (42) of the package extends from the first curved portion to the lip plate, thereby connecting the first curved portion to the lip plate.

4. The bucket according to claim 3, wherein the lip plate forms an angle of 1 to 5 degrees downward relative to the second flat portion.

5. The bucket according to claim 3, wherein the bucket has a first curved corner (48) and a second curved corner (52).

6. The bucket according to claim 3, wherein one or more bending brackets (60) extend from a first wear plate (65) on a first side plate (19) to a wear strip (62), the one or more wear brackets causing bending around the first bending corner.

7. A working machine (1), comprising: Base (2), the base being configured to support on the ground surface; A rotating frame (3) is connected to the base and is rotatable about an axis; Arm (11), which is connected to the rotating frame; as well as The bucket according to claim 1 is pivotally connected to the arm and supported at the base plate.

8. The working machine of claim 7, wherein the lip plate includes a plurality of adapters (32), each of the plurality of adapters being configured to retain the piercing digging teeth (35), the lip plate defining a lip plane (37) pointing downward in a direction between 1 degree and 5 degrees, and configured to facilitate downward-sloping edge cutting during digging operations.

9. A method for manufacturing a bucket (12), the method comprising: A base plate (23) and a lip plate (31) are provided, the base plate being configured to define an inner cavity top plate (45) of the bucket, and the lip plate being configured to define a lip plane (37) at the bottom end of the bucket (29). The package extends from the lip plate to the base plate, the package having a first curved portion of the package (38) having a first radius of curvature (B), the first curved portion extending from the bottom end of the bucket to a first flat portion (40) of the package, the first flat portion extending from the first curved portion to a second curved portion (38) of the package having a second radius of curvature (A), and the second curved portion extending from the first flat portion to the base plate; The first curved corner (48) is attached to the first side of the package, and the second curved corner (52) is attached to the second side of the package; as well as A first side plate (19) is extended from the substrate to the first bent corner, and a second side plate (20) is extended from the substrate to the second bent corner.

10. The method of claim 9, wherein the package is concave, the concave shape of the package being configured to allow the package to align with the first curved corner and the second curved corner to form the bottom surface of the bucket.

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