一种挖掘机用防断裂机械爪

By introducing a staggered structure and a seamless tube tenon and mortise structure into the excavator's mechanical claw, the problem of the mechanical claw colliding with the center seat side plate during retraction was solved, improving the load-bearing capacity of the mechanical claw and reducing the risk of breakage.

CN224514306UActive Publication Date: 2026-07-17GUANGXI RONGXIAN CHANGHONG CONSTRUCTION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI RONGXIAN CHANGHONG CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing excavator claws are prone to colliding with the side plate of the center seat when retracting, causing cracks in the side plate and resulting in damage to the claw and accidents.

Method used

A fracture-resistant mechanical claw was designed, which adopts a staggered structure formed by the middle seat side plate and the movable connecting rod, and seamless tubes and tenon structures are set on the first and second claws. The staggered structure avoids collision, and the mechanical claw is reinforced by the tenon structure and seamless tubes.

Benefits of technology

This effectively prevents the mechanical gripper from colliding with the side plate of the central seat during retraction, thereby improving the load-bearing capacity of the mechanical gripper and reducing the probability of breakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型涉及机械爪技术领域,且公开了一种挖掘机用防断裂机械爪。该一种挖掘机用防断裂机械爪,包括马达头,所述马达头的底端设置有转盘结构,所述转盘结构的底端设置有中座侧板,所述中座侧板的内侧连接有三齿推板,且中座侧板的外侧连接有第一臂爪。本实用新型通过设置中座侧板和活动连杆,中座侧板与活动连杆形成错位结构,在第一臂爪、第二臂爪抓取物体时,利用错位结构,可有效避免连接处不会与中座侧板相撞,活动连杆上端利用转轴连接中座侧板,由于活动连杆下端也是利用转轴轴连接第二臂爪,所以中座侧板的转轴往里面移动并保持一定的间距,再由铁轴环填充轴的空间,使第一臂爪、第二臂爪在收缩抓紧时不会与中座侧板相撞。
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Claims

1. A fracture-resistant mechanical gripper for excavators, comprising a motor head (1), characterized in that: The bottom end of the motor head (1) is provided with a turntable structure (2), the bottom end of the turntable structure (2) is provided with a middle seat side plate (4), the inner side of the middle seat side plate (4) is connected with a three-tooth push plate (5), and the outer side of the middle seat side plate (4) is connected with a first arm claw (7). The inner side of the three-tooth push plate (5) is connected with a movable connecting rod (6), and the outer side of the three-tooth push plate (5) and the movable connecting rod (6) is connected with a second arm claw (8). A seamless tube (9) is provided on the second arm claw (8).

2. The break-resistant mechanical claw for excavators according to claim 1, characterized in that: The front end of the motor head (1) is provided with a solenoid valve protective cover (3). The three-tooth push plate (5), the second arm claw (8), the first arm claw (7), the movable connecting rod (6), and the middle seat side plate (4) are all movably connected by a rotating shaft, and an iron shaft ring is provided on the rotating shaft.

3. The break-resistant mechanical claw for excavators according to claim 1, characterized in that: The movable link (6) is movably connected to the middle seat side plate (4) and the second arm claw (8) through a rotating shaft, and the middle seat side plate (4) and the movable link (6) form a misaligned structure.

4. The break-resistant mechanical claw for excavators according to claim 1, characterized in that: The ends of the first arm claw (7) and the second arm claw (8) are equipped with tooth blocks (12), and there are two middle seat side plates (4).

5. The break-resistant mechanical pawl for excavators according to claim 1, characterized in that: A baffle (11) is fixed on the outside of the first arm claw (7), and seamless tubes (9) are provided on both the first arm claw (7) and the second arm claw (8).

6. The anti-breakage mechanical claw for excavators according to claim 1, characterized in that: Multiple mortise and tenon structures (10) are installed on the motor head (1), the middle seat side plate (4), the first arm claw (7), and the second arm claw (8).