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OCT 16 2012

jaws crusher

Casting

This series jaw crusher, crushing, product size uniform, simple structure, reliable operation, easy maintenance, low operating cost characteristics. The jaw crusher is widely used in mining, smelting, building material, highway, railway, water conservancy and chemical industry and many other sectors, crushing various materials with compressive strength less than 320 MPa.

Structure and composition

1 rack

The rack is the rigid frame of the upper and lower openings of the walls, used for supporting a reaction force of the eccentric shaft and withstand the crushing materials, has sufficient strength and rigidity is required, generally integrally cast with the cast, the minicomputer can also be used to quality cast iron instead of cast. Mainframe rack need to be segmented cast, then bolt firmly linked into a whole, the casting process is complex. Homemade small jaw crusher rack is also available to the thick steel plate welded but rigidity poor.

Jaw and sideguard

Fixed jaw and movable jaw by jaw bed and jaw, jaw is working part fixed in the jaw with a bolt and wedge iron bed. Fixed jaw jaw bed is rack anterior wall, moving jaw jaw bed hanging on in the week, have sufficient strength and rigidity to withstand the crushing reaction force, and thus most of the cast steel or cast iron pieces.

3 transmission parts

The eccentric shaft crusher the spindle, by a huge bending torque, high-carbon steel. Eccentric part of the required finishing, heat treatment, the jogger bearing babbitt pouring. One end of the eccentric shaft mounted pulley, and the other end attached to the flywheel.

4 regulating device

Wedges, pads and hydraulic adjustment device, commonly used wedge from before and after the two wedges, former wedge can move back and forth, board withstood push; After wedge adjustment wedge, can be up and down the mobile two wedge ramps Backward bonded, move up and down by a screw so that after the wedge is adjusted to the size of the spout. Small jaw crusher discharge port to adjust to take advantage of changes in how much to shim between the thrust plate bearing the rack.

5. Flywheel

Jaw crusher flywheel for energy storage moving jaw air travel for industrial formation, mechanical work in line tends to be uniform. The pulley also plays the role of the flywheel. The Flywheel often manufacture of cast iron or cast steel flywheel of the minicomputer often made integral. Flywheel manufacturing, installation should pay attention to static equilibrium.

6. Lubrication device

The eccentric shaft bearings are usually centralized circulation lubrication. Spindle and thrust plate support surface generally use the grease to the oil through the oil gun manually. The moving jaw swing angle is very small, so that the spindle and bearing lubrication difficulties, often open in the bush at the bottom of a number of axial oil groove, open the middle of a ring connected to the sump so, then the oil pump lubrication Forced into the dry butter.