挖掘机动臂前叉结构

By introducing an automatic lubrication component and a specific material design into the front fork structure of the excavator boom, the problem of high manpower consumption for manual lubrication has been solved, improving lubrication efficiency and equipment stability, and extending service life.

CN224514292UActive Publication Date: 2026-07-17ANHUI HEKUANG MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI HEKUANG MACHINERY
Filing Date
2025-06-18
Publication Date
2026-07-17

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Abstract

本实用新型涉及挖掘机技术领域,公开了挖掘机动臂前叉结构,包括动臂前叉本体,所述动臂前叉本体上中部左侧转动连接有安装轴一,所述安装轴一外侧固定连接有液压油缸,所述液压油缸输出端固定连接有安装轴二,所述动臂前叉本体上中部左侧固定连接有固定轴一,所述固定轴一外侧转动连接有连接杆一,所述安装轴二外侧转动连接有连接杆二,所述动臂前叉本体下部固定连接有储油管,所述储油管内部固定连接有微型泵一。本实用新型中,通过微型泵一、微型泵二、抽油管一、抽油管二、储油管、喷头一与喷头二等结构之间的配合,实现了前叉结构便于对挖掘机动臂前叉结构进行润滑,减少了操作所需人力消耗。
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Claims

1. A structure of a front frame of a movable arm of a shovel, comprising a front frame body (1) of the movable arm, characterized by: The upper middle left side of the boom fork body (1) is rotatably connected to a mounting shaft one (3), and a hydraulic cylinder (5) is fixedly connected to the outside of the mounting shaft one (3). The output end of the hydraulic cylinder (5) is fixedly connected to a mounting shaft two (6). The upper middle left side of the boom fork body (1) is fixedly connected to a fixing shaft one (7), and a connecting rod one (8) is rotatably connected to the outside of the fixing shaft one (7). A connecting rod two (9) is rotatably connected to the outside of the mounting shaft two (6). The lower part of the boom fork body (1) is fixedly connected to a mounting frame (12), and an oil storage pipe (13) is fixedly connected inside the mounting frame (12). Lubrication components are provided on the front and rear sides of the boom fork body (1) for lubricating the fork structure.

2. The excavator boom front fork structure of claim 1, wherein: The lubrication assembly includes a micro pump (14), which is fixedly connected to the left side of the front and rear sides of the boom fork body (1). The input end of the micro pump (14) is fixedly connected to an oil suction pipe (15), and the output end of the micro pump (14) is fixedly connected to an oil delivery pipe (16). The end of the oil delivery pipe (16) away from the micro pump (14) is fixedly connected to a nozzle (17). The right side of the front and rear sides of the boom fork body (1) is fixedly connected to a micro pump (18), which is fixedly connected to an oil suction pipe (19) at its input end and an oil delivery pipe (20) at its output end. The end of the oil delivery pipe (20) away from the micro pump (18) is fixedly connected to a nozzle (21).

3. The excavator stick front fork structure of claim 1, wherein: The boom fork body (1) is made of alloy steel, the connecting rod one (8) and the connecting rod two (9) are both made of carbon steel, and the oil storage pipe (13) is made of stainless steel.

4. The excavator stick front fork structure of claim 1, wherein: The boom fork body (1) is rotatably connected to the right side of the inner side of the boom fork body (1) and the lower right side of the boom fork body (1) is rotatably connected to the second connecting shaft (4).

5. The excavator stick front frame structure of claim 1, wherein: The boom fork body (1) is rotatably connected to a fixed shaft three (11) on the left side inside, and the connecting rod two (9) is rotatably connected to a fixed shaft two (10) at the end away from the mounting shaft two (6).

6. The excavator stick front fork structure of claim 2, wherein: The end of the first oil extraction pipe (15) away from the first micro pump (14) is fixedly connected to the oil storage pipe (13), and the end of the second oil extraction pipe (19) away from the second micro pump (18) is fixedly connected to the oil storage pipe (13).

7. The excavator stick front fork structure of claim 4, wherein: The second connecting shaft (4) is fixedly connected to the boom, and the first connecting shaft (2) is fixedly connected to another hydraulic cylinder (5).

8. The excavator boom front fork structure of claim 5, wherein: Both the second fixed shaft (10) and the third fixed shaft (11) are fixedly connected to the bucket.