Jaw crusher discharge mouth adjust method

Jaw Crusher

Jaw Crusher appeared in 1858, the first widely used in road construction, later used in mining. With a crushing ratio, even granularity, simple structure, reliable operation, easy maintenance, operating costs and economic characteristics. Jaw crusher is widely used in many sectors in mining, smelting, building material, highway, railway, water conservancy and chemical industry, etc., not to exceed 320 MPa compressive crushing various materials.

jaw crusher adjusting device is crusher discharge mouth is the size of the adjustment mechanism, with the broken tooth plate wear, port of discharge increases, the crushed product size continues to thicken, in order to ensure product size requirements, must be used to adjust device periodically adjust the size of the port of discharge.

There are four forms of discharge port Adjustment jaw crusher:


After the posterior wall of the thrust plate bearing and chassis inspection, into a set of equivalent thickness shim. By increasing or reducing the number of spacer layers, so that the crusher discharge mouth decrease or increase.

wedge adjustment:

With the thrust plate holder and rear chassis between the rear wall of the relative movement of the two wedges to achieve adjust the crusher discharge mouth. Go nuts on the bolts, so adjust the wedge along the back wall of the frame to make upward or downward movement, driving a wedge before moving forward or backward, thus promoting the thrust plate or movable jaw to reach the port of discharge adjustment purposes.

hydraulic adjustment:

In recent years there are installation of hydraulic cylinders push to adjust the port of discharge at this location. Safety device, which is when the jaw crusher crushing chamber into the non-broken objects, in order to effectively prevent a security measure not to damage the machine parts, and used. The most common is the use of back pressure plate as the crusher safety device. Jaw crusher with hydraulic safety device, both reliable and secure, and easy to exhaust failure.

support means

means bearing part jaw crusher, large and medium-sized crushers are generally used cast babbitt bearings, it can withstand greater impact loads, and more wear-resistant, but turn low efficiency, the need for lubrication. Rolling With the improvement of manufacturing technology, the future of large jaw crusher is also bound by rolling.