Preliminary knowledge of pneumatic tools

Pneumatic tools are devices that use the energy of compressed air provided by an air compressor as a source of power.

According to their basic working methods can be divided into:

1) Rotary type (eccentric movable vane type).

2) Reciprocating type (volume piston type)

(1) Rotary type: The air flow velocity when the pressure is reduced acts on the blades, so as to drive the rotor to rotate at a high speed and work. For example: dry-grinding pneumatic tools; grind-type pneumatic tools; pneumatic drills; pneumatic wrenches; wind batch; pneumatic hoists, etc. (2) Reciprocating: Compressed air is introduced into the cylinder, through the control of the inlet and exhaust ports , and make the piston reciprocate and work. For example: gas saws; pneumatic picks; pneumatic riveters; pneumatic picks;

During the use of pneumatic tools, due to normal wear and tear; improper operation of the worker; or other human factors, it may cause the tool to malfunction. Rotary tools malfunction generally manifested as the tool does not rotate or rotation is weak, and the components that are prone to failure are : 1) Rotating part 2) Driving part 3) Strike part 4) Entering part 5) Switch part 6) Adjusting part (1) Rotating part This portion is common to all rotary tools. Because it is relying on compressed air to drive the blades to drive the rotor to rotate and work. The normal loss during use, the damage of blades, bearings, and other accessories can easily cause the tool to fail or not to turn. The general wearing parts are: rotor; vane; end plate; bearing; semicircle key; O-ring; cylinder block;

(b) Transmission part This part is part of a part of a rotary tool. Relying on compressed air, the blades are driven to rotate the rotor, and the gears or transmission shafts are used for transmission. Due to the wear of bearings, gears and other accessories, the tool is unable to rotate or rotate. The general wearing parts are: gears and their matching bearings.

(c) Combat part of this part which is common to pneumatic wrenches and wind batches.

Both the pneumatic wrench and the wind batch rely on compressed air to drive the blades to drive the rotor to rotate, and the rotor drives the combat part to work. Due to the impact of the shaft; the impact block and other force parts of the wear; fracture and other reasons, easily lead to the tool does not turn or rotation powerless, the general wearing parts are: hitting the shaft: combat block (hammer); combat box (room): combat the pin.

(4) Air intake section This section is common to all pneumatic tools.

Due to normal wear or other reasons, parts such as air intakes break; wear. The general wearing parts are: air inlet port; spring; top rod; O-ring;

(five) Switch part This part is common to all pneumatic tools.

The general wearing parts are: trigger; pin; steel ball (valve) and so on.

(6) Part of the gas regulating part This part is the part of most pneumatic tools due to the positioning of the steel ball, such as wear or detachment; the valve is broken and other reasons, it is easy to cause the gear position is not fixed when the tool is working; There are stringing phenomenon generally vulnerable parts: steel ball; locking rose; ventilation (to) valve; gear switch and so on. The failure of a reciprocating pneumatic tool generally manifests itself as: immobility; insufficient reciprocating distance or inability. Consumables are: O-rings; Pistons: Cylinder block; Intake switch; Springs, etc. Pneumatic tool maintenance is better than maintenance 1) Before and after the tool is used, fill the tool air inlet with 3 to 4 drops of special pneumatic maintenance oil to reduce Wear and prolong tool life.

2) Ensure that the gas source of the supply tool is dry, free of impurities 3) Regular cleaning, refueling maintenance, timely replacement of worn parts.