1. Comparison of structural composition
Single cylinder hydraulic cone breakage
It is mainly divided into six major parts:
1) Upper frame assembly: upper frame, rolling mortar wall, cushion cap, upper frame body protective plate;
2) Lower frame assembly: lower frame, lower frame guard plate, lower frame inner lining plate, eccentric sleeve bushing, and sealing barrel;
3) Moving cone assembly: spindle, moving cone body, rolling mortar wall;
4) Transmission shaft assembly: groove wheel, transmission shaft, bearing, transmission shaft frame, small bevel gear;
5) Eccentric sleeve assembly: counterweight ring, eccentric sleeve, large bevel gear, and spindle bushing;
6) Hydraulic cylinder assembly: middle friction plate, lower friction plate, hydraulic cylinder body, cylinder liner, cylinder bottom, displacement sensor.
Multi cylinder hydraulic cone rupture
It mainly includes the following six major parts:
1) Lower frame part: frame, spindle, guide pin;
2) Eccentric sleeve: eccentric sleeve, balance ring, large bevel gear;
3) Transmission part: transmission shaft, small bevel gear, shaft sleeve;
4) Support sleeve: support sleeve, locking cylinder, locking nut;
5) Adjusting the ring: adjusting the ring and rolling the mortar wall;
6) Moving cone: body, broken wall, hammer head, spherical tile.
2. Comparison of discharge port adjustment devices
Single cylinder
During normal operation, the oil pump is used to inject or discharge oil into the spindle oil cylinder, causing the spindle to move up or down (with the spindle floating up and down), and adjusting the size of the discharge port. This adjustment method may make it difficult to lock the discharge port when crushing hard ore.
Multi cylinder
By using a hydraulic pusher or hydraulic motor, the adjustment cap is adjusted to drive the adjustment ring to rotate inside the support sleeve (the fixed cone spiral rotates up and down), achieving the adjustment effect. The advantage of this adjustment method is that the discharge port is easy to lock.
3. Comparison of overload protection
Single cylinder iron passing and cavity cleaning
When passing through the iron, hydraulic oil is injected into the accumulator, and the main shaft falls down; After passing the iron, the accumulator will return the oil pressure and the crusher will operate normally. Hydraulic pumps are also used for cavity cleaning.
Overload protection for multiple cylinders
When an unbreakable foreign object passes through the crushing chamber or the machine is overloaded for some reason, the hydraulic safety system achieves safety, and the discharge port increases, allowing the foreign object to be discharged from the crushing chamber. If a foreign object gets stuck in the ore discharge port, a cleaning system can be used to further enlarge the ore discharge port and allow the foreign object to be discharged from the crushing chamber. Under the action of the hydraulic system, the ore discharge port automatically resets and the machine returns to normal operation.
4. Comparison of lubrication systems
Single cylinder
Two oil inlet ports are filled with oil, and one enters from the lower end of the main shaft to lubricate the spherical bearings, spherical bearings, frame bushings, and main shaft bushings, thereby lubricating the large and small bevel gears; The other way enters from the end of the transmission shaft, lubricates the transmission shaft bushing, and finally the two ways of oil are discharged from the same oil outlet.
Multi cylinder
After the oil hole from the lower part of the machine enters the machine and reaches the middle of the main shaft, it is divided into three branches: the inner and outer surfaces of the eccentric sleeve, the middle oil hole of the main shaft reaches the ball bearing, and the large and small bevel gears are lubricated through the hole passage; The other way is through the hole on the transmission shaft frame to lubricate the transmission bearing, and the return oil also passes through the return hole on the lower part of the small bevel gear and the return oil hole on the dust cover.
5. Provide a comparison of crushing force components
Single cylinder
The single cylinder hydraulic cone breaker is similar to the spring cone breaker, where the main shaft and the moving cone are combined and supported by a bowl shaped tile. Therefore, the main shaft and the moving cone are supported by a base, and the eccentric sleeve drives the main shaft to provide crushing force.
Multi cylinder
The main shaft of the multi cylinder hydraulic cone is thick and short, and its diameter can be designed to be large. It is directly standing on the frame (rather than in the eccentric sleeve) and supported by the frame, providing high bearing capacity. The eccentric sleeve directly drives the dynamic cone to provide crushing force.
The different mechanical structures of single cylinder and multi cylinder cone crusher determine the different forces on the frame when crushing ore. The former frame bears tensile stress, while the latter frame bears weakened tensile stress. Therefore, multi cylinder cone crusher has advantages in frame structure.
6. Comparison of vulnerable parts
Single cylinder
Non standard vulnerable parts: cone sleeve, oil seal, rolling mortar wall, shaft sleeve, pressure cap, cutting ring, crushing wall, dust ring, upper and lower friction discs, oil baffle ring, frame liner, middle friction ring, eccentric liner.
Multi cylinder
Standard vulnerable parts: V-belt, skeleton oil seal, O-ring seal, dust ring, Yx seal ring, Yz seal ring; Non standard vulnerable parts: small bevel gears, shaft sleeves, protective plates, eccentric sleeve liners, large bevel gears, upper friction discs, ball bearings, crushing cones, cone heads, floating bushings, sealing rings, rolling mortar walls, and rib protective plates.