Jaw crusher
AssigneeSandvik AB
InventorsStuart GRAYDON, Stuart SMYTH
Life of this patent
Estimating the term…
Abstract
A jaw crusher and method or using the same is provided. The jaw crusher includes a crusher housing having an inlet for material to be crushed and an outlet for material that has been crushed. A moveable jaw, which has a wear plate and a stationary jaw, is provided with a second wear plate. The moveable jaw and the stationary jaw form between them a crushing chamber. The moveable jaw is coupled to an eccentric jaw crusher shaft, which causes the moveable jaw to reciprocate in an eccentric motion to crush the material between the moveable jaw and the stationary jaw. A toggle system is provided and includes a drive cylinder provided with an internally mounted sensor to measure the position of the moveable jaw relative to the stationary jaw.
Claims19
A jaw crusher comprising:
- a crusher housing having an inlet for material to be crushed, an outlet for material that has been crushed, a moveable jaw provided with a wear plate, and a stationary jaw, provided with a second wear plate, the moveable jaw and the stationary jaw forming between them a crushing chamber, the moveable jaw being coupled to an eccentric jaw crusher shaft which causes the moveable jaw to reciprocate in an eccentric motion to crush the material between the moveable jaw and the stationary jaw;
- and
- a toggle system including a toggle plate, a toggle beam and toggle clamping cylinders connected to the toggle beam to clamp the toggle plate, wherein the toggle system further includes a drive cylinder effective on the toggle beam for adjusting the position of the moveable jaw relative to the stationary jaw, wherein the drive cylinder is provided with an internally mounted sensor arranged to measure a position of the moveable jaw relative to the stationary jaw.
A method for adjusting a jaw crusher, the jaw crusher comprising:
- a crusher housing having an inlet for material to be crushed, an outlet for material that has been crushed;
- a moveable jaw provided with a wear plate;
- a stationary jaw provided with a second wear plate, the moveable jaw and the stationary jaw forming between them a crushing chamber, the moveable jaw being coupled to an eccentric jaw crusher shaft which causes the moveable jaw to reciprocate in an eccentric motion to crush the material between the moveable jaw and the stationary jaw;
- and
- a toggle system including a toggle plate, a toggle beam and toggle clamping cylinders connected to the toggle beam to clamp the toggle plate, wherein the toggle system further includes a drive cylinder effective on the toggle beam for adjusting the position of the moveable jaw relative to the stationary jaw, wherein the drive cylinder is provided with an internally mounted sensor to measure the position of the moveable jaw relative to the stationary jaw,
- the method comprising;
- moving, by means of the drive cylinder the moveable jaw into a position at or near the stationary jaw;
- and
- measuring a stroke of the drive cylinder using the sensor to calculate the position of the moveable jaw relative to the stationary jaw.
Dependencies are inferred from the claim text.