A gripping device for an excavator

Abstract

The utility model relates to engineering machinery equipment technical field, concretely relates to a kind of grabbing device suitable for excavator.The grabbing device suitable for excavator of the application, including the earphone component for being connected with the arm of excavator, realize the quick adaptation with the arm of excavator, reduce the cost of modification;The earphone component bottom is rotatably connected with rotating assembly, provides horizontal plane 360 ° rotation degree of freedom, expands operating range;The output end of the rotating assembly is downward and is connected with support component, the support component is connected with the left clamping body, right clamping body of asymmetrically being arranged towards opposite, the left clamping body, right clamping body respectively are connected with the drive component for driving the left clamping body, right clamping body open or clamping, to realize device efficient grabbing, by left and right asymmetric clamping body (weeding harrow tooth+non-slip steel plate) can give consideration to crushing and grabbing function.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery and equipment technology, specifically to a gripping device suitable for excavators. Background Technology

[0002] An excavator is an earthmoving machine that uses a bucket to excavate materials above or below its bearing surface and load them into transport vehicles or unload them at a stockpile. The materials excavated are mainly soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important types of construction machinery. Existing excavators are only equipped with a bucket, thus limiting their application to excavation. However, modern excavators need to perform a variety of different construction tasks, such as weeding, river dredging, and material transport. These tasks require excavators to integrate a multi-purpose excavator gripper with functions such as a weed rake, a flat bucket, and a clamping mechanism. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art and to provide a gripping device suitable for excavators.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a gripping device suitable for excavators, comprising an earpiece assembly for connecting to the excavator arm, a rotating assembly rotatably connected to the bottom of the earpiece assembly, the output end of the rotating assembly facing downward and connected to a support assembly, a left clamping body and a right clamping body arranged opposite to each other and asymmetrically connected to the support assembly, and a driving assembly for driving the left clamping body and the right clamping body to open or close respectively.

[0005] Furthermore, the left clamp is welded with weeding rake teeth, and the right clamp is a smooth, wear-resistant steel plate.

[0006] Furthermore, the tooth spacing of the weed rake is ≤35cm; the steel plate is provided with anti-slip texture.

[0007] Furthermore, the support assembly includes a support base, on which a connecting plate is provided that is connected to the left clamp and the right clamp respectively.

[0008] Furthermore, the connecting plate is connected to the left clamp and the right clamp respectively via the first pin.

[0009] Furthermore, the connecting plate is connected to one end of the drive assembly via a second pin, and the other end of the drive assembly is connected to the left or right clamp via a third pin.

[0010] Furthermore, the drive assembly includes a telescopic hydraulic cylinder, which is connected to the connecting plate, the left clamp, or the right clamp, respectively.

[0011] Furthermore, the rotating assembly includes a rotary motor, which is connected to the support base via bolts and nuts.

[0012] Furthermore, the earphone assembly includes a connector, on which a rotary joint is connected by bolts and nuts. The other end of the rotary joint is connected to the support base. The rotary joint controls the extension and retraction of the hydraulic cylinder to allow the left and right clamping bodies to grip materials.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This application applies to the gripping device of excavators, which can replace the excavator bucket and be directly installed on the existing excavator arm. The extension and retraction of the drive component telescopic cylinder can control the opening or closing of the left and right grippers, thereby enabling ordinary excavators to have gripping capabilities, expanding the application range of excavators. In addition, the rotary motor can drive the support component, left gripper, and right gripper to rotate 360°, thereby enabling gripping operations at different angles, with a wide range of applications.

[0014] 2. The left clamp body of this application is welded with weeding rake teeth, and the right clamp body is a smooth wear-resistant steel plate, so that the gripping device can perform weeding operation and collect the weeds using the right clamp body, realizing the mechanization of weeding operation and effectively reducing the labor intensity of personnel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the gripping device for excavators in a preferred embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the gripping device for excavators in a preferred embodiment of the present invention. Figure 2 ; Figure 3 This is an exploded view of the gripping device for excavators in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping structure of the gripper device for excavators in a preferred embodiment of the present invention.

[0016] Reference numerals: 1. Left clamp; 2. Right clamp; 3. Telescopic cylinder; 4. Support assembly; 401. Support base; 402. Connecting plate; 5. Rotary motor; 6. Slewing joint; 7. Earpiece assembly; 8. First pin; 9. Second pin; 10. Third pin. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0018] Reference Figures 1-4 As shown in the preferred embodiment of this utility model, a gripping device suitable for excavators includes an earpiece assembly 7 for connecting with the excavator arm, enabling rapid adaptation to the excavator arm and reducing modification costs. The earpiece assembly 7 has a rotating component rotatably connected to its bottom, providing 360° rotational freedom in the horizontal plane and expanding the operating range. The output end of the rotating component faces downwards and is connected to a support assembly 4. The support assembly 4 is connected to a left clamping body 1 and a right clamping body 2, which are arranged opposite to each other and asymmetrically. The left clamping body 1 and right clamping body 2 are respectively connected to driving components for opening or closing, thereby achieving efficient gripping. The asymmetrical left and right clamping bodies (weed rake teeth + anti-slip steel plates) can simultaneously perform crushing and gripping functions.

[0019] As a preferred embodiment of this utility model, it may also have the following additional technical features: the left clamp 1 is welded with weeding rake teeth, and the right clamp 2 is a smooth wear-resistant steel plate. Thus, the weeding rake teeth of the left clamp can break up the vegetation root system, and the steel plate of the right clamp provides planar support, realizing simultaneous "breaking + gripping" operation.

[0020] In this embodiment, the tooth spacing of the weed rake is ≤35cm; the steel plate is provided with anti-slip texture, thereby optimizing weeding efficiency; and the tooth spacing of ≤35cm can ensure efficient removal of common weeds (such as shrubs and vines). The texture of the steel plate increases friction and prevents slippery materials (such as logs and rocks) from falling off.

[0021] In this embodiment, the support assembly 4 includes a support base 401, on which a connecting plate 402 is provided, which is respectively connected to the left clamping body 1 and the right clamping body 2. This disperses clamping stress and prevents deformation of the machine arm.

[0022] In this embodiment, the connecting plate 402 is connected to the left clamp 1 and the right clamp 2 respectively via the first pin 8. Thus, the first pin provides a degree of freedom of movement to adapt to uneven ground conditions, while the pin hinge reduces the risk of welding fatigue cracking.

[0023] In this embodiment, the connecting plate 402 is connected to one end of the drive assembly via the second pin 9, and the other end of the drive assembly is connected to the left or right clamp via the third pin. Thus, a lever mechanism is formed by the three-stage pin layout (first, second, and third pins), which amplifies the thrust of the hydraulic cylinder, and the multi-hinge design improves the synchronicity of the clamp opening and closing, preventing material skewing.

[0024] In this embodiment, the drive component includes a telescopic cylinder 3, which is connected to the connecting plate 402, the left clamp 1, or the right clamp 2, respectively, so that it can be directly connected to the hydraulic circuit of the excavator without the need for an additional power source.

[0025] In this embodiment, the rotating component includes a rotary motor 5, which is connected to the support base 401 by bolts and nuts to provide stable torque output. The bolt connection supports quick disassembly and reduces downtime.

[0026] In this embodiment, the earphone assembly 7 includes a connecting seat, on which a rotary joint 6 is connected by bolts and nuts. The other end of the rotary joint 6 is connected to the support base 401. The rotary joint 6 controls the extension and retraction of the hydraulic cylinder 3 to grip materials in the left and right clamping bodies. The rotary joint, in conjunction with the hydraulic cylinder, enables the clamping body to be tilted (±30°) to adapt to slope operations.

[0027] The working principle of this utility model: This device achieves seamless adaptation with excavators through a modular structure (earpiece assembly / rotation assembly / support assembly). The asymmetrical left and right clamping bodies (weed rake teeth + anti-slip steel plate) combine crushing and gripping functions. The drive assembly adopts a combination of multi-stage pin hinges and telescopic cylinders, significantly improving clamping force and stability; the rotary motor and slewing joint provide dual-degree-of-freedom adjustment to adapt to complex terrain. The rake teeth with a pitch ≤35cm efficiently remove vegetation, and the anti-slip steel plate ensures zero material loss. The overall structure is connected by bolts / pins, combining convenient maintenance and service life, and is suitable for engineering operations in various scenarios such as mining, forestry, and waste removal.

[0028] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A gripping device suitable for excavators, characterized in that: The device includes an earpiece assembly for connection to the boom of an excavator. A rotating assembly is rotatably connected to the bottom of the earpiece assembly. The output end of the rotating assembly faces downward and is connected to a support assembly. A left and right clamping bodies, arranged opposite to each other and asymmetrically, are connected to the support assembly. Drive assemblies for opening or closing the left and right clamping bodies are connected to the left and right clamping bodies respectively. The left clamping body is welded with weeding rake teeth, and the right clamping body is a smooth, wear-resistant steel plate. The tooth pitch of the weeding rake teeth is ≤35cm. The steel plate has anti-slip textures.

2. The gripping device for excavators according to claim 1, characterized in that: The support assembly includes a support base, on which a connecting plate is provided that is connected to the left clamp and the right clamp respectively.

3. The gripping device for excavators according to claim 2, characterized in that: The connecting plate is connected to the left clamp and the right clamp respectively via a first pin.

4. The gripping device for excavators according to claim 3, characterized in that: The connecting plate is connected to one end of the drive assembly via a second pin, and the other end of the drive assembly is connected to the left or right clamp via a third pin.

5. The gripping device for excavators according to claim 4, characterized in that: The drive assembly includes a telescopic hydraulic cylinder, which is connected to the connecting plate, the left clamp, or the right clamp, respectively.

6. The gripping device for excavators according to claim 2, characterized in that: The rotating assembly includes a rotary motor, which is connected to the support base via bolts and nuts.

7. The gripping device for excavators according to claim 2, characterized in that: The earphone assembly includes a connector, on which a rotary joint is connected by bolts and nuts. The other end of the rotary joint is connected to the support base. The rotary joint controls the extension and retraction of the hydraulic cylinder to allow the left and right clamping bodies to grip materials.

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