The upper end of the spindle with a broken cone is supported in the bushing of the middle of the beam, and the lower end of the spindle is placed in the eccentric hole of the shaft sleeve. When the shaft sleeve is rotated, the broken cone revolves around the center line of the machine as an eccentric cycle, and its breaking action is continuous, so the working efficiency is higher than that of the jaw crusher. By the early 70s, the large cycle crusher had been able to deal with 5000 tons of material per hour, with the maximum feed diameter of up to 2000 millimeters. The nesting population adjustment and overload insurance in two ways: one is the gyratory crusher by mechanical means, adjust the upper end of its spindle nut, rotate adjusting nut, cone crusher can decrease or increase the discharge becomes larger or smaller, overload, cut off by a transmission belt wheel pin on the realization of insurance; the second is the use of hydraulic hydraulic gyratory crusher, which is situated on the main shaft piston in the hydraulic cylinder, hydraulic piston change under oil volume cone crusher can change the position, thus changing the size of the discharging port. When overloading occurs, the downward pressure on the spindle increases, forcing the hydraulic oil under the plunger to enter the accumulator in the hydraulic transmission system, so that the broken cone will descend to increase the discharge port, and to discharge the non broken objects (iron, wood blocks, etc.) entering the crushing cavity with the material, so as to achieve insurance.
Both gyratory crusher and bacterial cone crusher are one of the conical crusher. The gyratory crusher is a coarse crusher. Compared with the jaw crusher, its advantage is that the crushing process is carried out continuously in the ring shaped crushing chamber, so the productivity is high, the electricity consumption is low, and the operation is smooth. It is suitable for crushing flaky materials. The particle size distribution curve shows that the particle size of the finished product is smaller than that of the jaw crusher, and the particle size is relatively uniform. In addition, the raw material can be directly poured into the intake port from the conveyance without setting the feeder. The disadvantages of gyratory crusher are: complex structure, high price, overhauling and costly repair. The higher the fuselage, the higher the cost of buildings and foundations.
The rotary crusher is suitable for the use of large production factories and production fields. According to experience, if a jaw crusher meets the production requirement if it is selected, it will use jaw. If we need two jaw, we should consider using a gyratory crusher.
(1) the structure is simple and reasonable, and the operation cost is low. With the principle of stone beating, the wear is small.
(2) high crushing rate and energy saving.
(3) it has the function of fine grinding and coarse grinding.
(4) the moisture content of the material is small and the moisture content is about 8%.
(5) more work noise is lower than 75 decibels (DB grade), and dust pollution is less.
(6) it is suitable for hard and hard material in crushing.
(7) the product is a cube, the bulk density is large, and the iron pollution is very small.
(8) the impeller has small self lining wear and convenient maintenance. 
Fault and troubleshooting
1, failure phenomenon: fine grain size;
Reason: more hammer;
Solution: cut off one or two layers of hammer.
2, failure phenomenon: coarse grain size;
Cause: loose belt or low speed;
Solution: tighten the belt and check whether the voltage is 380V.
3, failure phenomenon: breaking the body wobble;
Cause: the centrifugal force of the rotor is not balanced;
Solution: replacement or adjustment of the weight hammer head. 
Installation method editing
1. The equipment should be installed at the level of the concrete foundation and fixed with the anchor.
2. The main body and vertical level of the installation should be paid attention to.
3, part of the bolt installation inspection is loose, and strengthen the host country gate and the requirement to tighten.
4. Configure the power supply line and the power control switch according to the equipment.
5, the inspection finished, the air load test, test, production can be normal.