A loader planar motion lift work device

Abstract

This invention discloses a loader translational lifting device, including a boom, a rocker arm, a tie rod, an actuator, a boom cylinder, and a bucket cylinder. The boom, boom cylinder, and bucket cylinder are hinged to the loader frame at points A, B, and C, respectively, and these three points remain in constant relative position, considered as fixed points. The bucket cylinder is hinged to the rocker arm at point D; the boom and rocker arm at point E; the rocker arm and tie rod at point F; the tie rod and actuator at point G; the boom and actuator at point H; and the boom cylinder and boom at point K. The structural dimensions of the device satisfy ∠DEF=∠AEH. During boom lifting, mechanical translational lifting can be achieved without electrical control or manual adjustment of the bucket cylinder, keeping the angle between the actuator and the ground plane constant, ensuring stable, efficient, and safe operation.

Description

Technical Field

[0001] This invention relates to the field of loader translational lifting, and more specifically to a loader translational lifting working device. Background Technology

[0002] The actuators of a loader include a working link and various implements. The front end of the working link is connected to various implements, and the rear end is connected to the loader frame. By controlling the hydraulic cylinders, various operations can be performed.

[0003] Lifting and translating performance is a crucial performance indicator for loader working devices. When using implements to forklift materials, it is essential to prevent the materials from tipping over or slipping, making lifting and translating performance particularly important. With conventional working devices, the angle between the implement and the ground continuously changes during boom lifting, requiring real-time manual adjustment of the bucket cylinder or real-time control of the bucket cylinder using electrical components. However, both manual and electronic adjustments pose reliability risks and negatively impact loader efficiency and increase operating costs. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a loader translational lifting device that achieves mechanical translational lifting without the need for electrical control or manual adjustment of the bucket cylinder during boom lifting, thus maintaining a constant angle between the actuator and the ground plane.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention provides a loader translational lifting device, including a boom, a rocker arm, a tie rod, an actuator, a boom cylinder, and a bucket cylinder. The boom, boom cylinder, and bucket cylinder are respectively hinged to the loader frame at points A, B, and C, respectively, with their relative positions remaining unchanged. The piston end of the bucket cylinder is hinged to one end of the rocker arm at hinge point D; the middle part of the boom is hinged to the middle part of the rocker arm at hinge point E; the other end of the rocker arm away from hinge point D is hinged to one end of the tie rod at hinge point F; the other end of the tie rod is hinged to the actuator at hinge point G; the working end of the boom is hinged to the actuator at hinge point H; the piston end of the boom cylinder is hinged to the middle part of the boom at hinge point K; let AL be the vertical reference line starting from A; let EJ be the extension of AE starting from E; let HI be the vertical reference line starting from H; where ∠DEF=∠AEH, During the boom lifting process, the angle θ between the actuator and the vertical reference line remains unchanged, that is, the actuator achieves translational lifting.

[0007] Preferably, the rocker arm is arc-shaped, with its middle part hinged at the middle position of the boom.

[0008] Preferably, the hinge point G is located above the hinge point H.

[0009] Preferably, hinge point A is located above hinge point B.

[0010] Preferably, the actuator includes forks, sliding forks, and clamps.

[0011] The beneficial effects of this invention are as follows: This device can achieve mechanical translational lifting without electrical control or manual adjustment of the bucket cylinder during the boom lifting process, so that the angle between the actuator and the ground plane remains unchanged, ensuring stable, efficient and safe operation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a loader translational lifting device provided in an embodiment of the present invention.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Boom; 2. Rocker arm; 3. Lever; 4. Forks; 5. Boom cylinder; 6. Bucket cylinder. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1As shown, a loader's translational lifting device includes a boom 1, a rocker arm 2, a tie rod 3, a fork 4, a boom cylinder 5, and a bucket cylinder 6. The boom 1, boom cylinder 5, and bucket cylinder 6 are respectively hinged to the loader frame at points A, B, and C, respectively, with their relative positions remaining unchanged. The piston end of the bucket cylinder 6 is hinged to one end of the rocker arm 2 at hinge point D. The middle part of the boom 1 is hinged to the middle part of the rocker arm 2 at hinge point E. The rocker arm 2 is located away from the hinge points. The other end of D is hinged to one end of the pull rod 3, with hinge point F; the other end of the pull rod 3 is hinged to the actuator 4, with hinge point G; the working end of the boom 1 is hinged to the fork 4, with hinge point H; the piston end of the boom cylinder 5 is hinged to the middle of the boom 1, with hinge point K; let AL be the vertical reference line starting from A; let EJ be the extension of AE starting from E; let HI be the vertical reference line starting from H; where ∠DEF=∠AEH、 During the lifting process of boom 1, the angle θ between fork 4 and the vertical reference line remains unchanged, that is, fork 4 achieves translational lifting.

[0018] The rocker arm 2 is arc-shaped, with its middle section hinged to the middle position of the boom 1. Hinge point G is located above hinge point H. Hinge point A is located above hinge point B. Preferably, in this embodiment, the actuator is a forklift.

[0019] Let ∠DEF=∠AEH=V1, ∠CAL=V2, ∠CAE=U1, ∠FEA=U2, ∠CAD=U3, ∠DAE=U4, ∠GHI=θ, where angles U1, U2, U3, and U4 will change as boom 1 is raised, angles V1 and V2 are structural dimensions of the working device and their values ​​remain unchanged, and θ is the angle between fork 4 and the vertical reference line.

[0020] In triangles AED and HEF, since ∠AED = ∠HEF = V1 - U2, Therefore, △AED and △HEF are similar. ∠EHF=∠DAE=U4;

[0021] because Therefore, in △ACD and △FGH Therefore, △ACD and △FGH are similar, so ∠FHG=∠CAD=U3;

[0022] Because ∠EHF=∠DAE=U4 and ∠FHG=∠CAD=U3, therefore ∠EHG=∠FHG-∠EHF=U3-U4 and ∠CAE=∠CAD-∠DAE=U3-U4=U1, therefore ∠EHG=∠CAE=U1;

[0023] Since AL and HI are the vertical baselines and EJ is the extension of AE, ∠HIJ and ∠EAL are corresponding angles. Therefore, ∠HIJ = ∠EAL = U1 + V2, and ∠EIH = 180° - ∠HIJ = 180° - U1 - V2.

[0024] Since EJ is the extension of AE, ∠HEI = 180° - ∠AEH = 180° - V1;

[0025] Since the sum of the interior angles of △EHI is 180°, ∠HEI+∠EIH+∠EHI=(180°-V1)+(180°-U1-V2)+(θ+U1)=180°. Simplifying the above equation, we get θ=V1+V2-180°. Since V1 and V2 are structural dimensions of the working device and do not change with the lifting of the boom, the angle θ between the forks and the vertical reference line remains unchanged during the lifting of the boom, that is, the working device achieves translational lifting.

[0026] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A loader translational lifting working device, characterized in that, The loader includes a boom (1), a rocker arm (2), a tie rod (3), an actuator (4), a boom cylinder (5), and a bucket cylinder (6). The boom (1), boom cylinder (5), and bucket cylinder (6) are respectively hinged to the loader frame at points A, B, and C, respectively, with their relative positions remaining unchanged. The piston end of the bucket cylinder (6) is hinged to one end of the rocker arm (2) at hinge point D. The middle part of the boom (1) is hinged to the middle part of the rocker arm (2) at hinge point E. The rocker arm (2) is located away from hinge point D. The other end is hinged to one end of the pull rod (3), with hinge point F; the other end of the pull rod (3) is hinged to the actuator (4), with hinge point G; the working end of the boom (1) is hinged to the actuator (4), with hinge point H; the piston end of the boom cylinder (5) is hinged to the middle of the boom (1), with hinge point K; let AL be the vertical reference line starting from A; let EJ be the extension of AE starting from E; let HI be the vertical reference line starting from H; where ∠DEF=∠AEH、 During the lifting process of the boom (1), the angle θ between the actuator (4) and the vertical reference line remains unchanged, that is, the actuator (4) achieves translational lifting.

2. The loader translational lifting device as described in claim 1, characterized in that, The rocker arm (2) is arc-shaped, with its middle part hinged to the middle position of the boom (1).

3. The loader translational lifting device as described in claim 1, characterized in that, The hinge point G is located above the hinge point H.

4. The loader translational lifting device as described in claim 1, characterized in that, Hinge point A is located above hinge point B.

5. The loader translational lifting device as described in claim 1, characterized in that, The actuators include forks, sliding forks, and clamps.

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