A loader bucket

Abstract

The utility model provides a kind of shovel for loader, it is related to engineering machinery technical field, it includes push bucket, shovel plate and drive cylinder, the shovel plate includes bottom plate and the vertical plate located bottom plate both sides, the upper end of vertical plate is fixed with hinged arm, the one end of hinged arm length direction is fixed with the upper end of vertical plate, the other end of hinged arm length direction is hinged with drive cylinder through hinged pivot I, the middle part of hinged arm is hinged with the upper end of push bucket both sides through hinged pivot II;The included angle between the length direction extension line of hinged arm and the plane of bottom plate is not less than 45 °, the utility model solves the technical problem that the hinged structure of the shovel of loader in the prior art causes shovel plate to be limited to the angle of upward overturning, and the angle of overturning is smaller, to be able to satisfy more operation scene.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a loader bucket. Background Technology

[0002] In infrastructure construction, mining, and bulk material handling projects, loaders are core operating equipment, and their buckets, as key components that directly act on materials, directly determine the overall construction benefits of the machine through their operating efficiency and functional adaptability. With increasingly diversified engineering conditions, traditional single-function buckets can no longer meet the needs of multiple scenarios such as shoveling, leveling, and light digging. The industry's demand for loader buckets that combine convenience and multi-functionality is becoming increasingly urgent.

[0003] In the prior art, there have been related attempts to improve the multi-functionality of loader buckets. For example, Chinese utility model patent with publication number CN218713467U discloses a multi-functional bucket for loaders. The bucket includes a bucket body, and the front end of the bucket body is connected to a tilting shovel plate through a hinge structure. The hinge structure has a front hinge hole and a rear hinge hole, with the rear hinge hole located behind the front hinge hole. At the same time, a drive mechanism (such as a hydraulic cylinder) is connected between the bucket body and the shovel plate. When the drive mechanism retracts, it can drive the shovel plate to tilt around the hinge axis formed by the front and rear hinge holes to adjust the working angle of the shovel plate.

[0004] However, the above-mentioned prior art still has certain defects: because the rear hinge hole in its hinge structure is fixed behind the front hinge hole, the shovel plate needs to rotate around the fixed axis formed by the front and rear hinge holes when it flips. The position of this axis will limit the rotation angle when the shovel plate flips upward, resulting in a smaller flip angle of the shovel plate. Utility Model Content

[0005] This application provides a loader bucket that solves the technical problem in the prior art where the hinged structure of the loader bucket results in a limited upward tilting angle and a small tilting angle, thereby meeting the needs of more operating scenarios.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a loader bucket, comprising a push bucket, a shovel plate, and a drive cylinder. The shovel plate includes a base plate and upright plates located on both sides of the base plate. A hinged arm is fixed to the upper end of each upright plate. One end of the hinged arm along its length is fixed to the upper end of the upright plate, and the other end of the hinged arm along its length is hinged to the drive cylinder via a hinge shaft I. The middle part of the hinged arm is hinged to the upper ends of both sides of the push bucket via a hinge shaft II. The angle between the extension line of the hinged arm along its length and the plane of the base plate is not less than 45°.

[0007] When using this device, if it is necessary to adjust the working angle of the shovel (such as switching from a horizontal state suitable for shoveling to an inclined state suitable for light digging, or from a horizontal state suitable for leveling to an inclined state suitable for piling), the drive cylinder can be activated to drive the shovel to flip: if the piston rod of the drive cylinder retracts, it will pull the articulated arm to rotate upward around the articulated shaft II, thereby causing the shovel to flip upward as a whole; if the piston rod of the drive cylinder extends, it will push the articulated arm to rotate downward around the articulated shaft II, thereby causing the shovel to flip downward as a whole. Since the angle between the extension line of the articulated arm in the length direction and the plane where the bottom plate is located is not less than 45°, this angle design makes the articulated shaft I no longer located behind the articulated shaft II. Therefore, the flipping angle of the shovel to flip upward is increased, which can meet the needs of more scenarios.

[0008] As a further improvement to the above solution, the bucket includes a bucket wall, and two side plates are fixed at the left and right ends of the bucket wall respectively. The lower end of the drive cylinder is rotatably mounted between the two side plates at the same end of the bucket wall through a hinge shaft III.

[0009] As a further improvement to the above solution, the articulated arm includes a fixed plate fixed to the upright plate and an ear plate arranged parallel to the fixed plate. The articulated pivot I is installed between the fixed plate and the ear plate, and the middle part of the articulated pivot II passes through the ear plate. The two ends of the articulated pivot II are respectively installed on the side plates at the left and right ends of the push bucket. Compared with a single-layer arm, this structure can significantly enhance the shear strength of the articulated part, avoid deformation or breakage of the articulated arm due to excessive driving force of the drive cylinder, and ensure the installation stability of the articulated pivot I and the articulated pivot II, thereby improving the smoothness and reliability of the shovel plate tilting action.

[0010] As a further improvement to the above solution, at least one rib is welded between the fixing plate and the ear plate, and the rib is respectively attached and fixed to the inner sidewall of the fixing plate and the inner sidewall of the ear plate.

[0011] As a further improvement to the above solution, the front edges of the side plates at both ends of the push bucket are provided with first teeth, and the rear edges of the vertical plates at both ends of the shovel are provided with second teeth. The tooth shape and tooth pitch of the first teeth and the second teeth match. This tooth matching structure can ensure that the open positions of the shovel and the push bucket are always aligned, effectively enhancing the connection stability of the two during operation.

[0012] As a further improvement to the above solution, a reinforcing plate is fixedly installed at the bottom of the base plate. The shape of the reinforcing plate is consistent with that of the base plate, and the edge of the reinforcing plate is flush with the edge of the base plate. This can effectively prevent the base plate from thinning or cracking due to long-term wear or impact, and significantly improve the durability of the shovel plate.

[0013] As a further improvement to the above solution, a seat plate is fixedly connected to the rear side of the bucket wall. The outer surface of the seat plate is provided with two upper hinge supports and two lower hinge supports. The two upper hinge supports are symmetrically distributed on the upper two sides of the seat plate and can be connected to the boom of the loader through a hydraulic cylinder. The two lower hinge supports are symmetrically distributed on the lower two sides of the seat plate and can be hinged to the front end of the boom of the loader.

[0014] As a further improvement to the above solution, a reinforcing beam is also fixed to the surface of the seat plate. The reinforcing beam is arranged in a transverse direction, and both ends of the reinforcing beam extend to the outer side walls of the two upper hinge supports and are fixedly connected to the upper hinge supports.

[0015] As can be seen from the above technical solutions, this utility model has at least the following technical effects or advantages: When using this device, if it is necessary to adjust the working angle of the shovel (such as switching from a horizontal state suitable for shoveling to an inclined state suitable for light digging, or from a horizontal state suitable for leveling to an inclined state suitable for piling), the drive cylinder can be activated to drive the shovel to flip: if the piston rod of the drive cylinder retracts, it will pull the articulated arm to rotate upward around the articulated shaft II, thereby causing the shovel to flip upward as a whole; if the piston rod of the drive cylinder extends, it will push the articulated arm to rotate downward around the articulated shaft II, thereby causing the shovel to flip downward as a whole. Since the angle between the extension line of the articulated arm in the length direction and the plane where the bottom plate is located is not less than 45°, this angle design makes the articulated shaft I no longer located behind the articulated shaft II. Therefore, the flipping angle of the shovel to flip upward is increased, which can meet the needs of more scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure behind the hidden pusher; Figure 3 This is a schematic diagram of the push bucket structure; Figure 4 This is a schematic diagram of the base plate.

[0017] Explanation of reference numerals in the attached drawings: 1. Bucket, 2. Shovel plate, 3. Drive cylinder, 4. Base plate, 5. Vertical plate, 6. Hinge arm, 7. Hinge shaft I, 8. Hinge shaft II, 9. Bucket wall, 10. Side plate, 11. Hinge shaft III, 12. Fixing plate, 13. Ear plate, 14. Rib plate, 15. First tooth, 16. Second tooth, 17. Reinforcing plate, 18. Seat plate, 19. Upper hinge support, 20. Lower hinge support, 21. Reinforcing beam. Detailed Implementation To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this patent.

[0018] This utility model discloses a loader bucket, which includes a push bucket 1, a shovel plate 2 and a drive cylinder 3. The shovel plate 2 includes a bottom plate 4 and upright plates 5 located on both sides of the bottom plate 4. The upper end of each upright plate 5 is fixed with a hinge arm 6.

[0019] In this embodiment, as Figure 1 , Figure 2 As shown, the push bucket 1 is generally concave, with an open front side to cooperate with the shovel plate 2. The shovel plate 2 is located at the front of the push bucket 1, and the bottom plate 4 is rectangular, providing a support surface for shoveling and transporting materials. The upright plates 5 on both sides are vertically fixed to the left and right ends of the bottom plate 4, forming a lateral obstruction to prevent material leakage from the sides. A hinged arm 6 is welded and fixed to the upper end of each upright plate 5. The hinged arm 6 is a long strip-shaped component, with one end fixed to the upper end of the upright plate 5 and the other end extending away from the shovel plate 2. The other end of the hinged arm 6 in the length direction is hinged to the drive cylinder 3 through a hinge shaft I7. The drive cylinder 3 is hydraulically driven, and its piston rod end is hinged to the extension end of the hinged arm 6 through the hinge shaft I7. The axis of the hinge shaft I7 is horizontal and parallel to the width direction of the shovel plate 2. The middle part of the articulated arm 6 is hinged to the upper ends of both sides of the push bucket 1 via the articulated pivot II8. The articulated pivot II8 is also set in the horizontal direction, passing through the middle position of the articulated arm 6 and rotatably connected to the upper edge of the left and right sides of the push bucket 1, so that the articulated arm 6 can rotate freely around the articulated pivot II8. At the same time, the angle between the extension line of the articulated arm 6 in the length direction and the upper surface of the bottom plate 4, i.e. the material support surface, is set to 45°. This angle design provides sufficient turning space for the shovel plate 2.

[0020] In actual operation, when it is necessary to adjust the working angle of the shovel plate 2, such as switching from the shoveling state to the leveling state, the drive cylinder 3 is activated. If the piston rod of the drive cylinder 3 retracts, it will pull the articulated arm 6 to rotate upward around the articulated shaft II 8, thereby causing the shovel plate 2 to flip upward as a whole, increasing the angle between the bottom plate 4 and the horizontal plane, which is suitable for light digging or material piling. If the piston rod of the drive cylinder 3 extends, it will push the articulated arm 6 to rotate downward around the articulated shaft II 8, causing the shovel plate 2 to flip downward, making the bottom plate 4 more horizontal, which is suitable for material shoveling or ground leveling. During the entire flipping process, because the angle between the extension direction of the articulated arm 6 and the bottom plate 4 is not less than 45°, the articulated shaft I 7 is no longer located behind the articulated shaft II 8, effectively avoiding the problem of limited flipping stroke of the shovel plate 2 in the prior art, and meeting the needs of more operating scenarios.

[0021] In the specific structure of the push bucket 1, the push bucket 1 includes a bucket wall 9, and two side plates 10 are fixed to the left and right ends of the bucket wall 9, respectively. For example... Figure 1 , Figure 3 As shown, there are four side plates 10, which are distributed in pairs at both ends of the bucket wall 9. The distance between two adjacent side plates 10 is adapted to the diameter of the cylinder body of the drive cylinder 3. The lower end of the cylinder body of the drive cylinder 3 (non-piston rod end) is connected to the two side plates 10 through the hinge shaft III11. The axis of the hinge shaft III11 is parallel to the axis of the hinge shaft I7, and its two ends pass through the preset mounting holes on the two side plates 10 respectively. The nuts are used to lock and prevent them from falling off, so that the drive cylinder 3 can rotate around the hinge shaft III11.

[0022] In the above structure, the side plate 10 provides a stable mounting base for the drive cylinder 3. Compared with direct mounting on the bucket wall 9, it can enhance the structural strength of the mounting part and prevent the bucket wall 9 from deforming due to long-term bearing of the cylinder driving force. At the same time, the drive cylinder 3 is rotatably connected to the side plate 10 through the hinge shaft III11, so that the cylinder can adapt to the angle change during the extension and retraction process, ensuring that the driving force is transmitted to the hinge arm 6 and improving the smoothness of the shovel plate 2's flipping action.

[0023] In the specific structure of the hinge arm 6, the hinge arm 6 includes a fixed plate 12 fixed to the upright plate 5 and an ear plate 13 arranged parallel to the fixed plate 12. For example... Figure 2As shown, the fixing plate 12 is an approximately rectangular metal plate, with one side completely attached to and welded to the upper side of the upright plate 5. The ear plate 13 is parallel to the fixing plate 12, forming a double-layer plate structure. The hinge shaft I7 is installed between the fixing plate 12 and the ear plate 13, passing through the end of the fixing plate 12 and the ear plate 13 away from the upright plate 5, thereby clamping the piston rod end of the driving cylinder 3 between the fixing plate 12 and the ear plate 13 to ensure hinge stability. A circular through hole is opened in the middle of the ear plate 13, through which the hinge shaft II8 passes, and its two ends are respectively rotatably engaged with the side plates 10 on both sides of the push bucket 1 to realize the rotation of the hinge arm 6 and the push bucket 1.

[0024] In the above structure, the articulated arm 6 adopts a double-layer plate structure formed by the fixed plate 12 and the ear plate 13. Compared with the single-layer arm body, it can enhance the shear strength of the articulated part and avoid deformation or breakage of the articulated arm 6 due to excessive driving force of the driving cylinder 3. At the same time, clamping the articulated pivot I7 between the two plates can further improve the stability of the shovel plate 2 flipping.

[0025] Furthermore, a rib plate 14 is welded between the fixing plate 12 and the ear plate 13. For example... Figure 2 As shown, the rib plate 14 is a triangular metal plate. One side of the rib plate 14 is welded to the inner wall of the fixing plate 12, and the other side is welded to the inner wall of the ear plate 13. The rib plate 14 can effectively enhance the connection rigidity between the fixing plate 12 and the ear plate 13, and prevent the two from being relatively deformed or separated during the stress process. Especially when the shovel plate 2 is subjected to a large material impact force, the rib plate 14 can effectively avoid structural damage caused by excessive local stress.

[0026] Furthermore, the front edges of the side plates 10 at both ends of the push bucket 1 are provided with first teeth 15, and the rear edges of the upright plates 5 at both ends of the shovel plate 2 are provided with second teeth 16. The first teeth 15 and the second teeth 16 engage. When the shovel plate 2 is in the initial shoveling position (i.e., the bottom plate 4 is nearly horizontal), the first teeth 15 and the second teeth 16 are fully engaged. In the above structure, the engagement of the first teeth 15 and the second teeth 16 ensures that the open positions of the shovel plate 2 and the push bucket 1 are aligned, thereby enhancing the connection stability between the two and reducing shaking noise during operation.

[0027] In addition, a reinforcing plate 17 is fixedly installed at the bottom of the base plate 4. Figure 1 , Figure 2As shown, the reinforcing plate 17 is completely fitted and fixed to the lower surface of the base plate 4, i.e., the side in contact with the ground. It is connected to the base plate 4 by bolts or welding, and the edge of the reinforcing plate 17 is flush with the edge of the base plate 4. In the above structure, the reinforcing plate 17 can directly withstand ground friction and material impact, preventing the base plate 4 from thinning and cracking due to long-term wear or impact. This significantly improves the durability of the shovel plate 2, making it particularly suitable for heavy-duty and high-wear conditions such as mining and infrastructure construction. It also reduces the frequency of maintenance and replacement of the base plate 4, thereby lowering equipment operating costs.

[0028] On the other hand, a seat plate 18 is also fixedly connected to the rear side of the bucket wall 9. The seat plate 18 is provided with two upper hinge supports 19 and two lower hinge supports 20. Specifically, as shown... Figure 3 , Figure 4 As shown, the base plate 18 is welded and fixed to the middle of the rear side of the bucket wall 9, serving as a transitional component connecting the bucket and the loader boom. Two upper hinge supports 19 are lug-shaped structures with circular through holes, symmetrically welded to the left and right sides of the upper part of the base plate 18. The axis of the through holes is horizontal and parallel to the width direction of the bucket, used to connect the lifting hydraulic cylinder on the loader boom. Two lower hinge supports 20 are also lug-shaped structures, symmetrically welded to the left and right sides of the lower part of the base plate 18. The axis of their through holes is parallel to the axis of the through holes of the upper hinge supports 19, used to hinge to the front end of the loader boom via pins, forming the rotation fulcrum of the bucket. In the above structure, the base plate 18 provides a stable mounting foundation for the hinge supports. By connecting the upper hinge supports 19 to the lifting cylinder and the lower hinge supports 20 to the boom, a reliable connection between the bucket and the loader boom can be achieved.

[0029] Furthermore, a reinforcing beam 21 is also fixed to the surface of the seat plate 18. For example... Figure 4 As shown, the reinforcing beam 21 is a metal beam with a rectangular cross section, the length of which is consistent with the distance between the two upper hinge supports 19, and it is welded laterally to the surface of the seat plate 18; the two ends of the reinforcing beam 21 extend to the outer side walls of the two upper hinge supports 19 respectively, and are welded and fixed to the upper hinge supports 19.

[0030] In the above structure, the transversely arranged reinforcing beam 21 can effectively enhance the bending strength of the upper part of the seat plate 18. Especially when the upper hinge support 19 bears the huge driving force of the lifting cylinder, the reinforcing beam 21 can distribute the force to the entire upper area of ​​the seat plate 18, preventing the seat plate 18 from denting or breaking due to excessive local stress. At the same time, it can also enhance the relative stability between the two upper hinge supports 19, prevent them from shifting during operation, and ensure smooth transmission of lifting force.

[0031] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in its embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A loader bucket, comprising a push bucket (1), a shovel plate (2), and a drive cylinder (3), wherein the shovel plate (2) comprises a base plate (4) and upright plates (5) located on both sides of the base plate (4), characterized in that, The upper end of each of the upright plates (5) is fixed with a hinge arm (6). One end of the hinge arm (6) in the length direction is fixed to the upper end of the upright plate (5), and the other end of the hinge arm (6) in the length direction is hinged to the driving cylinder (3) through the hinge shaft I (7). The middle part of the hinge arm (6) is hinged to the upper ends of both sides of the push bucket (1) through the hinge shaft II (8). The angle between the extension line of the length direction of the hinge arm (6) and the plane where the bottom plate (4) is located is not less than 45°.

2. A loader bucket according to claim 1, characterized in that, The push bucket (1) includes a bucket wall (9), and two side plates (10) are fixed at the left and right ends of the bucket wall (9). The lower end of the drive cylinder (3) is rotatably installed between the two side plates (10) at the same end of the bucket wall (9) via a hinge shaft III (11).

3. A loader bucket according to claim 2, characterized in that, The hinge arm (6) includes a fixed plate (12) fixed to the upright plate (5) and an ear plate (13) arranged parallel to the fixed plate (12). The hinge shaft I (7) is installed between the fixed plate (12) and the ear plate (13). The middle part of the hinge shaft II (8) passes through the ear plate (13), and the two ends of the hinge shaft II (8) are respectively installed on the side plates (10) at the left and right ends of the push bucket (1).

4. A loader bucket according to claim 3, characterized in that, At least one rib (14) is welded between the fixing plate (12) and the ear plate (13), and the rib (14) is respectively attached and fixed to the inner side wall of the fixing plate (12) and the inner side wall of the ear plate (13).

5. A loader bucket according to claim 2, characterized in that, The front edges of the side plates (10) at both ends of the push bucket (1) are provided with first teeth (15), and the rear edges of the upright plates (5) at both ends of the shovel plate (2) are provided with second teeth (16). The tooth shape and tooth pitch of the first teeth (15) and the second teeth (16) match.

6. A loader bucket according to claim 5, characterized in that, A reinforcing plate (17) is fixedly installed at the bottom of the base plate (4). The shape of the reinforcing plate (17) is consistent with that of the base plate (4), and the edge of the reinforcing plate (17) is flush with the edge of the base plate (4).

7. A loader bucket according to claim 2, characterized in that, A seat plate (18) is fixedly connected to the rear side of the bucket wall (9). The outer surface of the seat plate (18) is provided with two upper hinge supports (19) and two lower hinge supports (20). The two upper hinge supports (19) are symmetrically distributed on the upper two sides of the seat plate (18) and can be connected to the boom of the loader through a hydraulic cylinder. The two lower hinge supports (20) are symmetrically distributed on the lower two sides of the seat plate (18) and can be hinged to the front end of the boom of the loader.

8. A loader bucket according to claim 7, characterized in that, The surface of the seat plate (18) is also fixed with a reinforcing beam (21), which is arranged in the transverse direction, and the two ends of the reinforcing beam (21) extend to the outer side wall of the two upper hinge supports (19) and are fixedly connected to the upper hinge supports (19).

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