The overall structure of the excavator crushing hammer and removal and installation methods

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The lower assembly includes the following parts: lower, inner sleeve, outer sleeve, flat pin, retaining pin, inner sleeve pin, outer sleeve pin, outlet screws, grease nipple, circlip, pisay. First, align the inner sleeve and outer jacket and press them into the lower with a press bed, lock the inner and outer sleeves with the inner sleeve pin and outer sleeve pin. Then lock it in place with the pisay and circlip. Install the grease nipple and outlet screw. Apply proper grease to the strike cavity after installation. Assembly is complete.

Cylinder assembly mainly includes the following parts: cylinder, cylinder adjuster, nest plug, wire screw sleeve, oil seal, piston, oil seal retainer, etc. Cylinder is the core part of the crusher, which is especially important in the assembly.

The assembly is as follows:

1、Lay the cylinder flat, install the steel wire screw sleeve in the threaded hole of the cylinder with special tools, and the end surface of the steel wire screw sleeve should be lower than the threaded end surface.

2, the cylinder body clean, clean the cylinder body should pay attention to the cylinder body cavity and oil holes cleaning, cleaning is completed with high-pressure air blow-dry. Use a flashlight to check the cleanliness of the oil passage holes.

3、Installation of oil seals, the lower end of the cylinder and three oil seals, from the outside to the inside in order is the dust seal, the main oil seal, cushioning oil seal. Before installing the oil seal, smear the oil seal with hydraulic oil, the direction of installation can not be reversed, cushioning oil seal is composed of oil seal and support ring, support ring with chamfered side against the oil seal, can not be installed in reverse.

News & Event

Why does the hydraulic fluid in excavators turn black? This time it's not because of the heat!

Why does the hydraulic fluid in excavators turn black? This time it's not because of the heat!

Construction machinery on the hydraulic components are many, hydraulic oil in the hydraulic system plays a lubricating role, if not replaced for a long time, the hydraulic oil will become black, viscosity reduction will directly lead to the excavator main pump injection, valves, multi-way reversing valves, oil seals and so on the intensified wear and tear of the various hydraulic system parts, over time resulting in the components of the gap between the occurrence of leakage and seriously affect the excavator's action consistency, powerlessness and other phenomena. Phenomenon.

Excavator hydraulic breaker hammer internal workings in detail

Excavator hydraulic breaker hammer internal workings in detail

The relationship between the area A1 of the upper chamber of the cylinder and the area A2 of the lower chamber of the cylinder is A1>A2, and A2 is always subject to high pressure. When A1 is changed from high pressure to low pressure, the piston moves upward, accompanied by high-pressure nitrogen in the rear cylinder body under pressure to store energy.

Excavator Hydraulic Breaking Hammer Introduction and Working Principle

Excavator Hydraulic Breaking Hammer Introduction and Working Principle

Hydraulic crushing hammer referred to as “crushing hammer” or “crusher”, the power source of the hydraulic crushing hammer is the excavator, loader or pump station to provide the pressure, it can be more effective in the construction of the project can be crushed stone and rock, improve work efficiency. Selection of hydraulic crushing hammer principle is based on the excavator model, the operating environment to choose the most suitable hydraulic crushing hammer, according to the hydraulic network of senior consultants Li Gong analysis of China's hydraulic crushing hammer is mainly from foreign countries to introduce technology, South Korea's crushing hammer foundation is good, hydraulic network of Li Gong reminds us not to forget to support the domestic technology so that there is a better development.

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