A loader work implement and a loader
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI LIUGONG MASCH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-07
Smart Images
Figure CN224468460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loader technology, and in particular to a loader working device and a loader. Background Technology
[0002] Wheel loaders are generally equipped with buckets as attachments. In related technologies, the loader bucket is used for lifting after being scooped up at a low position. High lateral mobility after bucket scooping is required during operation to ensure material retention and reduce spillage. However, in special working conditions such as steel pipe clamps and horizontal forks, after scooping material at a low position, there is no bucket scooping action; the material is directly transferred, lifted, and unloaded. In existing working devices, the attachment angle changes significantly during horizontal lifting. When lifted to a high position, the angle between the attachment and the ground is -21.3°, causing the material to tilt forward and slide down, posing a safety hazard. Furthermore, while the existing loader bucket has sufficient lifting force at a low position to flip the material, the lifting force is insufficient at mid-to-high positions, preventing material flipping, which also limits its use. Utility Model Content
[0003] The purpose of this utility model is to provide a loader working device that improves the angle of the attachment assembly when the boom is in a high position, prevents the material on the attachment assembly from tilting forward and sliding down during the lifting process of the attachment assembly, reduces safety hazards, and can obtain a large mid-to-high position turning force, and can still turn the material over in the mid-to-high position, which is highly practical.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] A loader working device includes a front frame, boom, rocker arm, tie rod, bucket cylinder, boom cylinder, and attachment assembly; wherein,
[0006] The first end of the boom is hinged to the front frame, the second end of the boom is hinged to the attachment assembly, the fixed end of the boom cylinder is hinged to the front frame, the telescopic end of the boom cylinder is hinged to the boom, the fixed end of the bucket cylinder is hinged to the front frame, the telescopic end of the bucket cylinder is hinged to the first end of the rocker arm, the middle part of the rocker arm is hinged to the middle part of the boom, the second end of the rocker arm is hinged to the first end of the pull rod, and the second end of the pull rod is hinged to the attachment assembly. The boom cylinder is used to drive the boom to move so as to raise the attachment assembly to a high position.
[0007] Let A be the hinge point between the boom and the front frame, B be the hinge point between the boom and the attachment assembly, C be the hinge point between the tie rod and the attachment assembly, D be the hinge point between the rocker arm and the tie rod, E be the hinge point between the rocker arm and the boom, F be the hinge point between the rocker arm and the telescopic end of the bucket cylinder, G be the hinge point between the front frame and the fixed end of the bucket cylinder, Q be the hinge point between the boom and the telescopic end of the boom cylinder, and S be the hinge point between the front frame and the fixed end of the boom cylinder.
[0008] When AB = 3.84EF - 4.13EF, AE = 2.58EF - 2.75EF, BE = 1.67EF - 1.74EF, DE = 1.21EF - 1.28EF, DF = 2.16EF - 2.26EF, CD = 0.99EF - 1.02EF, BC = 0.59EF - 0.63EF, AG = 0.5EF - 0.53EF, XAG = 0.5EF - 0.53EF, GF = 1.48EF - 2.51EF, and SQ = 1.92EF - 3.06EF, and the attachment assembly is raised to a high position from a flat ground position, the attachment assembly maintains a set angle range with the horizontal direction, where XAG is the horizontal distance between A and G.
[0009] Preferably, when AB = 4.11EF, AE = 2.72EF, BE = 1.72EF, DE = 1.25EF, DF = 2.23EF, CD = 1.01EF, BC = 0.61EF, AG = 0.52EF, XAG = 0.519EF, GF = 1.62EF - 2.47EF, and SQ = 1.92EF - 3.06EF, the angle between the attachment assembly and the horizontal direction when the attachment assembly is raised to a high position from a flat ground position can be 2.9°.
[0010] Preferably, a first hinge joint is provided protruding on the front frame, and the fixed end of the bucket cylinder is hinged to the first hinge joint.
[0011] Preferably, the boom includes a crossbeam and two spaced-apart first plates, the crossbeam is fixedly connected between the two first plates, the rocker arm is located between the two first plates, and a second hinge joint is fixedly provided on the crossbeam, the second hinge joint being hinged to the middle of the rocker arm.
[0012] Preferably, the first hinge joint is located between the two second hinge joints.
[0013] Preferably, two first hinge joints are provided at intervals, the fixed end of the rotating bucket cylinder is located between the two first hinge joints, and the fixed end of the rotating bucket cylinder is hinged to the two first hinge joints.
[0014] Preferably, the boom cylinder is provided in a one-to-one correspondence with the first partition plate, and the telescopic end of the boom cylinder is hinged to the corresponding first partition plate.
[0015] Preferably, the rocker arm includes two spaced-apart second plates, the telescopic end of the rotating bucket cylinder is located between the first ends of the two second plates, the telescopic end of the rotating bucket cylinder is hinged to the first ends of the two second plates, the first end of the pull rod is located between the second ends of the two second plates, and the first end of the pull rod is hinged to the second ends of the two second plates.
[0016] Preferably, the attachment assembly includes a connecting frame and an attachment body, the connecting frame has a hinge point B with the second end of the boom, the connecting frame has a hinge point C with the second end of the tie rod, and the attachment body is detachably mounted on the connecting frame.
[0017] This utility model also provides a loader, including the above-mentioned loader working device, which improves the angle of the attachment assembly when the boom is in a high position, prevents the material on the attachment assembly from tilting forward and sliding down, and reduces safety hazards.
[0018] A loader includes the loader working device described in any of the above claims, and also includes a vehicle body, with the front vehicle mounted on the vehicle body.
[0019] Beneficial effects:
[0020] The loader working device provided by this utility model has a boom that is raised and lowered by the extension and retraction of the boom cylinder, allowing the attachment assembly to switch between high and low positions. By optimizing the distance between the various hinge points on the loader working device, a larger lifting force can be obtained in the middle and high positions. When the attachment assembly is raised to the high position from a flat ground position, the attachment assembly is kept within a set angle range with the horizontal direction, preventing the material on the attachment assembly from tilting forward and sliding down during the lifting process, reducing safety hazards. Moreover, it can still turn over the material in the middle and high positions, making it highly practical. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the loader working device provided by this utility model when it is in a low position;
[0022] Figure 2 This is a schematic diagram of the loader working device provided by this utility model when it is in a high position.
[0023] In the picture:
[0024] 1. Front frame; 11. First articulation joint;
[0025] 2. Boom; 21. First split plate; 22. Second hinge joint;
[0026] 3. Rocker arm; 31. Second dividing plate;
[0027] 4. Pull rod;
[0028] 5. Rotating bucket cylinder;
[0029] 6. Boom cylinder;
[0030] 7. Attachment assembly; 71. Connecting frame; 72. Attachment body. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0035] This embodiment provides a loader working device. (Refer to...) Figures 1 to 2 As shown, the loader's working device includes a front frame 1, a boom 2, a rocker arm 3, a tie rod 4, a bucket cylinder 5, a boom cylinder 6, and an attachment assembly 7. The first end of the boom 2 is hinged to the front frame 1, and the second end of the boom 2 is hinged to the attachment assembly 7. The fixed end of the boom cylinder 6 is hinged to the front frame 1, and the telescopic end of the boom cylinder 6 is hinged to the boom 2. The fixed end of the bucket cylinder 5 is hinged to the front frame 1, and the telescopic end of the bucket cylinder 5 is hinged to the first end of the rocker arm 3. The middle part of the rocker arm 3 is hinged to the middle part of the boom 2. The second end of the rocker arm 3 is hinged to the first end of the tie rod 4, and the second end of the tie rod 4 is hinged to the attachment assembly 7. The boom cylinder 6 is used to drive the boom 2 to move, thereby raising the attachment assembly 7 to a higher position.
[0036] In this embodiment, the hinge point between the boom 2 and the front frame 1 is set as A, the hinge point between the boom 2 and the attachment assembly 7 is set as B, the hinge point between the tie rod 4 and the attachment assembly 7 is set as C, the hinge point between the rocker arm 3 and the tie rod 4 is set as D, the hinge point between the rocker arm 3 and the boom 2 is set as E, the hinge point between the rocker arm 3 and the telescopic end of the bucket cylinder 5 is set as F, the hinge point between the front frame 1 and the fixed end of the bucket cylinder 5 is set as G, the hinge point between the boom 2 and the telescopic end of the boom cylinder 6 is set as Q, and the hinge point between the front frame 1 and the fixed end of the boom cylinder 6 is set as S. When AB = 3.84EF - 4.13EF, AE = 2.58EF - 2.75EF, BE = 1.67EF - 1.74EF, DE = 1.21EF - 1.28EF, DF = 2.16EF - 2.26EF, CD = 0.99EF - 1.02EF, BC = 0.59EF - 0.63EF, AG = 0.5EF - 0.53EF, XAG = 0.5EF - 0.53EF, GF = 1.48EF - 2.51EF, and SQ = 1.92EF - 3.06EF, and the attachment assembly 7 is raised from its flat ground position, the attachment assembly 7 maintains a set angle with the horizontal direction within the set angle range, where XAG is the horizontal distance between A and G.
[0037] Specifically, the attachment assembly 7 being in a flat position on the ground is called the horizontal position.
[0038] In this embodiment, the boom 2 is raised and lowered by the extension and retraction of the boom cylinder 6, allowing the attachment assembly 7 to switch between high and low positions. By optimizing the distance between the various hinge points on the loader's working device, a larger lifting force in the mid-to-high position can be obtained. When the attachment assembly 7 is raised to the high position from a flat ground position, the attachment assembly 7 is kept within a set angle range with the horizontal direction, preventing the material on the attachment assembly 7 from tilting forward and sliding down during the lifting process, reducing safety hazards. Moreover, the material can still be flipped up in the mid-to-high position, making it highly practical.
[0039] As an optional implementation of this embodiment, when AB = 4.11EF, AE = 2.72EF, BE = 1.72EF, DE = 1.25EF, DF = 2.23EF, CD = 1.01EF, BC = 0.61EF, AG = 0.52EF, XAG = 0.519EF, GF = 1.62EF - 2.47EF, SQ = 1.92EF - 3.06EF, and the attachment assembly 7 is raised to a high position while lying flat on the ground, the angle between the attachment assembly 7 and the horizontal direction can be 2.9°.
[0040] Specifically, the comparison of the high-level rotational force of the loader working device and the horizontal lifting angle of the attachment assembly 7 provided in this embodiment can be seen in the following table.
[0041] Comparison table of starting force improvement in mid-to-high position
[0042]
[0043]
[0044] Comparison of the horizontal lifting angle of the attachment assembly
[0045]
[0046] Specifically, when the attachment assembly 7 is raised to its highest position, the minimum horizontal rotational force of the attachment assembly 7 can be increased from 51KN to 73.7KN, thus meeting the requirements of clamping, forking, and horizontal forking operations. Furthermore, the horizontal lifting angle of the attachment assembly 7 can be adjusted from -21.3° to 2.9° to prevent materials from tilting forward and effectively ensure operational safety.
[0047] In this embodiment, a first hinge joint 11 protrudes from the front frame 1, and the fixed end of the bucket cylinder 5 is hinged to the first hinge joint 11. The first hinge joint 11 is specifically configured as an integral structure protruding relative to the front frame 1. The first hinge joint 11 provides a dedicated part for hinged to the fixed end of the bucket cylinder 5, ensuring a reliable connection between the two.
[0048] In this embodiment, the boom 2 includes a crossbeam and two spaced-apart first plates 21. The crossbeam is fixedly connected between the two first plates 21, and the rocker arm 3 is located between the two first plates 21. A second hinge joint 22 is fixedly provided on the crossbeam and is hinged to the middle of the rocker arm 3. Specifically, the opposite ends of the crossbeam are welded to the corresponding ends of the first plates 21. The two first plates 21 and the crossbeam together form an H-shaped structure, ensuring the overall structure of the boom 2 is reliable and stable. The rocker arm 3 is located between the two first plates 21, which also ensures the stable force balance between the rocker arm 3 and the boom 2.
[0049] Specifically, the first hinge joint 11 is located between the two second hinge joints 22.
[0050] Specifically, the second hinge joint 22 is configured as an integral structure protruding relative to the crossbeam. The second hinge joint 22 provides a dedicated hinge point for the rocker arm 3, ensuring a reliable and effective connection between the crossbeam and the rocker arm 3.
[0051] Specifically, the first hinge joint 11 is hinged to the fixed end of the rotating bucket cylinder 5 via a first hinge shaft. The second hinge joint 22 is hinged to the rocker arm 3 via a second hinge shaft. Specifically, the second hinge shaft passes through one second hinge joint 22, the rocker arm 3, and another second hinge joint 22 in sequence. The second hinge shaft is rotatably connected to the two second hinge joints 22 and remains fixed to the rocker arm 3.
[0052] Furthermore, two first hinge joints 11 are provided at intervals, and the fixed end of the rotating bucket cylinder 5 is located between the two first hinge joints 11, and the fixed end of the rotating bucket cylinder 5 is hinged to the two first hinge joints 11. Specifically, the first hinge shaft passes through one first hinge joint 11, the fixed end of the rotating bucket cylinder 5 and the other first hinge joint 11 in sequence. The first hinge shaft is rotatably connected to the two first hinge joints 11 and remains fixed to the rotating bucket cylinder 5.
[0053] This structural design ensures reliability, stability, and balanced stress, guaranteeing a reliable and stable connection between the bucket cylinder 5 and the front frame 1.
[0054] Furthermore, the boom cylinder 6 is configured in a one-to-one correspondence with the first plate 21, and the telescopic end of the boom cylinder 6 is hinged to the corresponding first plate 21. There are two first plates 21, and two boom cylinders 6 are also configured accordingly. The two first plates 21 are driven by the two boom cylinders 6 respectively, ensuring that the force is applied evenly to the boom 2 as a whole, and ensuring that the lifting and lowering of the boom cylinder 6 can be carried out reliably and stably.
[0055] In this embodiment, the rocker arm 3 includes two spaced-apart second plates 31. The telescopic end of the bucket cylinder 5 is located between the first ends of the two second plates 31, and the telescopic end of the bucket cylinder 5 is hinged to the first ends of the two second plates 31. The first end of the pull rod 4 is located between the second ends of the two second plates 31, and the first end of the pull rod 4 is hinged to the second ends of the two second plates 31. Specifically, the telescopic end of the bucket cylinder 5 is hinged to the second plates 31 via a third hinge shaft, and the first end of the pull rod 4 is hinged to the second plates 31 via a fourth hinge shaft. The third hinge shaft passes through one of the second plates 31, the bucket cylinder 5, and the other second plate 31 in sequence, and the fourth hinge shaft passes through one of the second plates 31, the pull rod 4, and the other second plate 31 in sequence. The third hinge shaft is rotatably connected to the two second plates 31 and fixed to the bucket cylinder 5, and the fourth hinge shaft is rotatably connected to the two second plates 31 and fixed to the pull rod 4. The telescopic end of the rotating bucket cylinder 5 is located between the first ends of the two second plates 31, and the first end of the pull rod 4 is located between the second ends of the two second plates 31. This arrangement ensures that the rocker arm 3 is subjected to uniform force and that the rocker arm 3 and the rotating bucket cylinder 5, as well as the rocker arm 3 and the pull rod 4, are reliably and stably connected.
[0056] In this embodiment, the attachment assembly 7 includes a connecting frame 71 and an attachment body 72. The hinge point between the connecting frame 71 and the second end of the boom 2 is B, and the hinge point between the connecting frame 71 and the second end of the tie rod 4 is C. The attachment body 72 is detachably mounted on the connecting frame 71. The attachment body 72 can be a forklift, bucket, etc., and can be configured according to actual usage needs. The attachment body 72 is detachable from the connecting frame 71, enabling quick replacement of different types of attachment bodies 72 and providing strong applicability. Specifically, the attachment body 72 and the connecting frame 71 can be detachably mounted via bolts or other connecting components.
[0057] This embodiment also provides a loader. The loader includes the loader working device described above, and also includes a vehicle body, with the front frame 1 mounted on the vehicle body. The loader utilizes the loader working device described above, improving the angle of the attachment assembly 7 when the boom 2 is in a high position, preventing materials on the attachment assembly 7 from tilting forward and sliding down, and reducing safety hazards.
[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A loader working device, characterized in that, Includes a front frame (1), boom (2), rocker arm (3), tie rod (4), bucket cylinder (5), boom cylinder (6), and attachment assembly (7); among which, The first end of the boom (2) is hinged to the front frame (1), the second end of the boom (2) is hinged to the attachment assembly (7), the fixed end of the boom cylinder (6) is hinged to the front frame (1), the telescopic end of the boom cylinder (6) is hinged to the boom (2), the fixed end of the bucket cylinder (5) is hinged to the front frame (1), the telescopic end of the bucket cylinder (5) is hinged to the first end of the rocker arm (3), the middle part of the rocker arm (3) is hinged to the middle part of the boom (2), the second end of the rocker arm (3) is hinged to the first end of the pull rod (4), the second end of the pull rod (4) is hinged to the attachment assembly (7), and the boom cylinder (6) is used to drive the boom (2) to move so as to lift the attachment assembly (7) to a high position; Let A be the hinge point between the boom (2) and the front frame (1), B be the hinge point between the boom (2) and the attachment assembly (7), C be the hinge point between the tie rod (4) and the attachment assembly (7), D be the hinge point between the rocker arm (3) and the tie rod (4), E be the hinge point between the rocker arm (3) and the boom (2), F be the hinge point between the rocker arm (3) and the telescopic end of the bucket cylinder (5), G be the hinge point between the front frame (1) and the fixed end of the bucket cylinder (5), Q be the hinge point between the boom (2) and the telescopic end of the boom cylinder (6), and S be the hinge point between the front frame (1) and the fixed end of the boom cylinder (6). When AB = 3.84EF - 4.13EF, AE = 2.58EF - 2.75EF, BE = 1.67EF - 1.74EF, DE = 1.21EF - 1.28EF, DF = 2.16EF - 2.26EF, CD = 0.99EF - 1.02EF, BC = 0.59EF - 0.63EF, AG = 0.5EF - 0.53EF, XAG = 0.5EF - 0.53EF, GF = 1.48EF - 2.51EF, and SQ = 1.92EF - 3.06EF, and the attachment assembly (7) is raised to a high position from a flat ground position, the attachment assembly (7) is maintained within a set angle range with the horizontal direction, where XAG is the horizontal distance between A and G.
2. The loader working device according to claim 1, characterized in that, When AB = 4.11EF, AE = 2.72EF, BE = 1.72EF, DE = 1.25EF, DF = 2.23EF, CD = 1.01EF, BC = 0.61EF, AG = 0.52EF, XAG = 0.519EF, GF = 1.62EF - 2.47EF, and SQ = 1.92EF - 3.06EF, the attachment assembly (7) can be raised to a high position from a flat ground position, and the angle between the attachment assembly (7) and the horizontal direction can be 2.9°.
3. The loader working device according to claim 1, characterized in that, The front frame (1) is provided with a first hinge joint (11) protruding out, and the fixed end of the bucket cylinder (5) is hinged to the first hinge joint (11).
4. The loader working device according to claim 3, characterized in that, The boom (2) includes a crossbeam and two spaced first plates (21). The crossbeam is fixedly connected between the two first plates (21). The rocker arm (3) is located between the two first plates (21). A second hinge joint (22) is fixedly provided on the crossbeam. The second hinge joint (22) is hinged to the middle part of the rocker arm (3).
5. The loader working device according to claim 4, characterized in that, The first hinge joint (11) is located between the two second hinge joints (22).
6. The loader working device according to claim 5, characterized in that, Two first hinge joints (11) are provided at intervals. The fixed end of the rotating bucket cylinder (5) is located between the two first hinge joints (11), and the fixed end of the rotating bucket cylinder (5) is hinged to the two first hinge joints (11).
7. The loader working device according to claim 4, characterized in that, The boom cylinder (6) is provided in a one-to-one correspondence with the first partition plate (21), and the telescopic end of the boom cylinder (6) is hinged to the corresponding first partition plate (21).
8. The loader working device according to claim 1, characterized in that, The rocker arm (3) includes two spaced-apart second plates (31). The telescopic end of the rotating bucket cylinder (5) is located between the first ends of the two second plates (31). The telescopic end of the rotating bucket cylinder (5) is hinged to the first ends of the two second plates (31). The first end of the pull rod (4) is located between the second ends of the two second plates (31). The first end of the pull rod (4) is hinged to the second ends of the two second plates (31).
9. The loader working device according to claim 1, characterized in that, The attachment assembly (7) includes a connecting frame (71) and an attachment body (72). The hinge point between the connecting frame (71) and the second end of the boom (2) is B, and the hinge point between the connecting frame (71) and the second end of the pull rod (4) is C. The attachment body (72) is detachably mounted on the connecting frame (71).
10. A loader, characterized in that, The loader working device according to any one of claims 1-9 also includes a vehicle body, wherein the front frame (1) is mounted on the vehicle body.