An invention relating to a tensioning device for the belt or chain drive of a stirred ball mill and to a stirred ball mill. The tensioning device includes a tensioning lever which is arranged on a rotatable tensioning foot and which includes a tensioning wheel. A rotatable adjusting disk with a guide contour is arranged on the rotatable tensioning foot. The position of the adjusting disk can be fixed on the machine housing of the stirred ball mill by means of a securing means paired with the guide contour of the adjusting disk. The tensioning device further includes a longitudinally variable tensioning element for rotating the adjusting disk relative to the machine housing of the stirred ball mill.

An invention relating to a tensioning device for the belt or chain drive of a stirred ball mill and to a stirred ball mill. The tensioning device includes a tensioning lever which is arranged on a rotatable tensioning foot and which includes a tensioning wheel. A rotatable adjusting disk with a guide contour is arranged on the rotatable tensioning foot. The position of the adjusting disk can be fixed on the machine housing of the stirred ball mill by means of a securing means paired with the guide contour of the adjusting disk. The tensioning device further includes a longitudinally variable tensioning element for rotating the adjusting disk relative to the machine housing of the stirred ball mill.

The peeling member is disposed inside the inner tank. The switching mechanism is provided for switching between the state of rotating the peeling member in the interlocking manner with the inner tank and the state of being disconnected the peeling member from the inner tank. With the peeling member disconnected from the inner tank, one of them is rotated, the used paper diaper stored is peeled off from the inner surface of the inner tank, and then, the used paper diaper processed in the processing tank is discharged from the bottom of the processing tank to the take-out unit via the opening and closing unit.

A sample crusher, including a main body housing and an electric motor arranged in the main body housing. A swing mechanism is further arranged in the main body housing. The swing mechanism includes a transmission shaft, a swing disk for allowing a grinding tube to be placed thereon, and a circumferential limiting component. The transmission shaft is driven by the electric motor to rotate, an obliquely arranged bearing is sleeved on the transmission shaft, an included angle is formed between an axis of the bearing and an axis of the transmission shaft, the swing disk is mounted on the bearing, the swing disk and the bearing are concentrically arranged, and the swing disk is connected to the circumferential limiting component.

A sample crusher, including a main body housing and an electric motor arranged in the main body housing. A swing mechanism is further arranged in the main body housing. The swing mechanism includes a transmission shaft, a swing disk for allowing a grinding tube to be placed thereon, and a circumferential limiting component. The transmission shaft is driven by the electric motor to rotate, an obliquely arranged bearing is sleeved on the transmission shaft, an included angle is formed between an axis of the bearing and an axis of the transmission shaft, the swing disk is mounted on the bearing, the swing disk and the bearing are concentrically arranged, and the swing disk is connected to the circumferential limiting component.

The invention relates to a holding and opening mechanism for a pivoting element, such as a lid, a cover, a door or the like, which is mounted to be pivotable relative to a supporting element such as a housing, a frame or the like about a first axle via a joint, with a pivoting arm acting between the pivoting element and the supporting element, which arm is pivotally mounted about a second axle that is not the same as the first axle, wherein the free end of the pivoting arm acts, preferably via a roller, on a control surface of a guide element, wherein a torsion spring is provided which acts on the pivoting arm in the direction around the second axle, in order to generate a holding and opening force on the pivoting arm and the control surface, comprising a fixed part and a part pivotable relative thereto, with the one part including the guide element and the other part including the pivoting arm, wherein the pivotable part is adapted to be pivotable relative to the fixed part about the joint and the first axle, the pivotable part is connected to the pivoting arm and the pivoting element and the fixed part is connected to the supporting element, wherein the control surface in cooperation with the torsion spring and the pivoting arm determines the holding and opening force via the pivot angle of the pivoting element. The invention is characterized in that a plurality of pivoting arms, guide elements, joints and fixed and pivotable parts are provided, with the pivoting arms being coupled together by a common torsion spring Spin the second axle.

An active/resilient grinding media inside a tube containing a sample is oscillated rapidly by a homogenizer so that the active media is driven in a first direction until it impacts a first end of the tube, which causes it to deform and store an energy charge as it decelerates and stops, and it then accelerates rapidly in the second opposite direction under the discharging force of the stored energy toward the opposite second end of the tube. This cycle of the active media decelerating/charging and then discharging/accelerating is repeated throughout the entire oscillatory processing of the sample. The result is much higher velocities of the active media and therefore much greater impact forces when the sample and active media collide, producing increased efficiency in disruption and size-reduction of the sample particles.

An active/resilient grinding media inside a tube containing a sample is oscillated rapidly by a homogenizer so that the active media is driven in a first direction until it impacts a first end of the tube, which causes it to deform and store an energy charge as it decelerates and stops, and it then accelerates rapidly in the second opposite direction under the discharging force of the stored energy toward the opposite second end of the tube. This cycle of the active media decelerating/charging and then discharging/accelerating is repeated throughout the entire oscillatory processing of the sample. The result is much higher velocities of the active media and therefore much greater impact forces when the sample and active media collide, producing increased efficiency in disruption and size-reduction of the sample particles.

In a method for detaching a frozen charge from an inner wall of a grinding tube of a tube mill, a motor of a drive system is operated in a first mode to rotate the grinding tube for grinding. In a second mode, the motor of the drive system is operated to remove the frozen charge from the inner wall of the grinding tube such that operation of the motor to effect a rotational movement of the grinding tube is repeatedly disturbed by a disturbance signal to cause a repeated disturbance within a variable time interval, with the time interval of the repeated disturbance being shortened.

A drive device for a vertical stirred mill, including a main housing, a motor, and an element able to be rotated by the motor around a vertical axis, the rotary element being fastened to a rotary milling tool of the vertical stirred mill, the rotary element including a substantially horizontal rotary plate, and the main housing including an axial stop able to guide the rotary element axially, the rotary plate being arranged bearing on the axial stop, the axial stop thus being able to react to the axial forces exerted on the milling tool during operation of the vertical stirred mill.