Nut loosening prevention

Locknut has a common requirement for connecting fasteners of supercharger, exhaust manifold and other components on diesel engine: high temperature resistance and strong vibration resistance. The use of nylon nuts, chemical glue and other anti-loosening lock nuts will fail under high temperature conditions: while double nuts with thrust washers are better under high temperature conditions. However, installation is troublesome and the anti-loosening effect is not ideal. The unique structure of the Schmidao nut effectively overcomes the above weaknesses. When the fastener is tightened, it can withstand strong vibration at high temperatures. After the components such as the supercharger exhaust pipe oil delivery pipe on the diesel engine are replaced with a screw nut, the problem of loosening of the fasteners at high temperature is effectively solved. As a result, in the diesel engine industry immediately caused a continuous effect. At present, many diesel engine manufacturers in the country, in these parts of the use of a strong nut to play a good anti-loosening locking effect.

In machining, the thread is cut by a tool or grinding wheel on a cylindrical shaft (or the surface of the inner hole). At this time, the workpiece rotates once, the tool moves a certain distance along the workpiece axis, and the mark cut by the tool on the workpiece is the thread. The thread formed on the outer surface is called the outer thread. The thread formed on the surface of the inner hole is called the inner thread. The basis of the thread is the helix on the surface of the circular shaft. Usually, if the cross section of the thread is triangular, it is called triangular thread; the cross section is trapezoidal and called trapezoidal thread; the cross section is zigzag and called zigzag thread; the cross section is square and called square thread; the cross section is circular arc and called circular arc thread and so on.

Clamp

Hose clamps is widely used in motor vehicles, petrochemicals, pharmaceuticals, food, wine-making sewage treatment, purification, dust removal, auto parts and other machines. It is especially suitable for connecting high-grade Senior high school vehicles or anti-corrosion materials. The hose clamp is resistant to torsion and pressure, firmly locked, tightly locked, and has a large adjustment range. Soft and hard pipes over 30mm can be connected by it. In order to promote the sealing effect, the throat, in actual engineering, it is not appropriate to use ordinary pipes to directly replace end pipes.

Moreover, there are certain requirements for the verticality between the end face and the axis of the end pipe and the flatness of the end face itself. The steel belt of the strong throat hoop is thicker than that of the ordinary throat hoop. The spot welding technology of the cylindrical nut with the special steel belt makes the special nut of the strong throat hoop stronger and more durable. The biggest difference between the strong throat hoop and the ordinary throat hoop is that it uses rigid screws to tighten. The principle is roughly the same as that of the lever. The large number of turns and the short fastening distance make it can be used under.

Cooperation cases

CASE