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The quick-change connector is a device that enables rapid switching between different working tools, such as the bucket of an excavator, a hydraulic breaker, a hydraulic shear, etc. It is applicable to a variety of working conditions, and the following are some common situations:

Classification by Driving Method
- Hydraulically Driven Log Grapples:
    - Working Principle: Power is provided by the hydraulic system to enable the claws of the log grapple to open, close, and perform the grabbing action. The hydraulic cylinders push the linkage mechanism, thus driving the movement of the claws.

Foundation construction: In the foundation treatment of various buildings, pile hammers are used to drive pile foundations into the ground to provide stable support for buildings. Whether it's high-rise residences, commercial buildings, or industrial plants, all need a solid foundation. Pile hammers can accurately drive precast piles or cast-in-place piles to the designed depth to ensure the stability and safety of buildings. For example, in the construction of high-rise buildings in cities, pile hammers play an important role in their foundation construction.

The rotary pulverizing clamp mainly works in the following way:
I. Structural composition
The rotary pulverizing clamp is usually composed of clamp body, oil cylinder, hydraulic motor, blade and other components.

1. Forklift attachments:
    - Forks: They are the most basic attachments for forklifts and are used to fork goods. The Tilt coupler can enable the forks to swing left and right within a certain angle, facilitating the forklift to smoothly fork goods even when not vertically aligned with the goods, improving the operating efficiency and flexibility of the forklift and reducing damage to the goods or pallets.

1. Small excavators (1-10 tons):
    - 1-4 ton class: Usually suitable for hydraulic breakers with smaller diameter drill rods, such as 53 and 68 millimeters. Common suitable models include Kubota U15, Yanmar ViO17, etc. These small excavators generally use hydraulic breakers in small construction sites, municipal engineering, courtyard construction and other places for small-scale crushing operations, such as demolishing the foundations of small buildings and crushing small concrete pavements.

I. Daily inspection
1. Before each use, you should check whether the connection parts of the car crusher shear are firm, including the connection pins and bolts with the excavator arm, to ensure there is no loosening or damage.

I. In the field of building demolition
In building demolition projects, crushing pliers can be used to crush concrete structures such as beams, columns, and floor slabs. It can quickly and effectively crush concrete components into smaller fragments for easy cleaning and transportation. Compared with traditional demolition methods such as blasting or manual crushing, crushing pliers have higher efficiency and safety, while reducing noise and dust pollution.

Hydraulic quick-change connector: It mainly fixes and releases the pin shaft through the action of the oil cylinder, thereby realizing the rapid replacement of working parts. When it is necessary to replace the working part, the oil cylinder retracts, and the hook-shaped pressing block moves from one position to another to disengage the quick-change connector. Then, align the new working part with the pin shaft, and open the oil cylinder again. The hook-shaped pressing block returns to its original position and locks the pin shaft of the working part. In addition, an external oil circuit and solenoid valve need to work simultaneously.

I. Hydraulic drive
Silent hydraulic breakers are usually powered by the hydraulic system of an excavator or other construction machinery. High-pressure hydraulic oil enters the cylinder of the breaker and pushes the piston to move.