A shoe sorter is described. The shoe sorter can include a switch plate that supports movement of a shoe pin of a pusher shoe, a finger, and an actuation arm. In some examples, the finger can be configured to be moved in a first direction in response to a portion of the shoe pin contacting a portion of the finger. The actuation arm can be pivotably engaged to the finger so that a movement of the finger in the first direction can cause a movement of the actuation arm in a second direction. In this regard, the actuation arm in the second direction can cause a change in a signal outputted by the photoelectric sensor coupled to the shoe sorter. This change in the signal can be used by a processor to determine that the shoe pin is misaligned.

A shoe sorter is described. The shoe sorter can include a switch plate that supports movement of a shoe pin of a pusher shoe, a finger, and an actuation arm. In some examples, the finger can be configured to be moved in a first direction in response to a portion of the shoe pin contacting a portion of the finger. The actuation arm can be pivotably engaged to the finger so that a movement of the finger in the first direction can cause a movement of the actuation arm in a second direction. In this regard, the actuation arm in the second direction can cause a change in a signal outputted by the photoelectric sensor coupled to the shoe sorter. This change in the signal can be used by a processor to determine that the shoe pin is misaligned.

A device including a chain strand where a contact point of a pivoting arm rests and slides on the chain of the chain strand. The pivoting arm is mounted on the shaft. The pivoting arm is coupled with the source of a compressive force in a form of a weight or a torsion spring. The pivoting arm is coupled with the shaft and therefore with the indicator of tension of the chain strand. The compressive force compensates for the change in resistance and lengthening of the chain when the chain conveyor is running, wherein its chain strand has been pre-tensioned by the basic pre-tensioning force induced by the tensioning device. The co-acting of the pre-tensioning force and the compressive force creates the operating tension which is not only indicated but also optimized by the device of the invention depending on a change in resistance in the chain strand.

A device including a chain strand where a contact point of a pivoting arm rests and slides on the chain of the chain strand. The pivoting arm is mounted on the shaft. The pivoting arm is coupled with the source of a compressive force in a form of a weight or a torsion spring. The pivoting arm is coupled with the shaft and therefore with the indicator of tension of the chain strand. The compressive force compensates for the change in resistance and lengthening of the chain when the chain conveyor is running, wherein its chain strand has been pre-tensioned by the basic pre-tensioning force induced by the tensioning device. The co-acting of the pre-tensioning force and the compressive force creates the operating tension which is not only indicated but also optimized by the device of the invention depending on a change in resistance in the chain strand.

An input/output (I/O) and control system for long distance communications and industrial applications having a bus and protocol for communications between field devices and a channel generator for monitoring and control of the field devices. The channel generator produces an offset square wave of configurable frequency on the bus, and sends a synchronization pulse of selected duration at the start of each bus scan cycle in a pulse train cycle to reset counters in the field devices before the bus scan cycle is repeated, to ensure field devices are synchronized, transmitters transmit on the correct channel, and receivers sample the pulse cycle at the correct time. Changing the synchronization pulse length increases bandwidth for shorter, less noisy and more stable systems and inversely decreases bandwidth for increased noise immunity and distance for longer, noisier and less stable systems.

A return stop device with a freewheel having an internal ring, an external ring, and retaining elements arranged in an annular gap therebetween. A flange is provided at the attachment side and a housing part, between which the external ring is clamped, and a clamping device by which the external ring is pressed with its face between the flange and the housing part against a friction area, in order to generate a friction-fitting connection between the flange and the external ring. A release device is provided to at least partially overcome the contact pressure, in order to reduce or remove the friction-fitting connection. The release device includes an actuating organ, which acts upon a first gliding element, displaceable in an operating direction, to act upon a second gliding element, arranged displaceable perpendicular to the operating direction, that acts via a second wedge against the contact pressure upon the housing part.

A return stop device with a freewheel having an internal ring, an external ring, and retaining elements arranged in an annular gap therebetween. A flange is provided at the attachment side and a housing part, between which the external ring is clamped, and a clamping device by which the external ring is pressed with its face between the flange and the housing part against a friction area, in order to generate a friction-fitting connection between the flange and the external ring. A release device is provided to at least partially overcome the contact pressure, in order to reduce or remove the friction-fitting connection. The release device includes an actuating organ, which acts upon a first gliding element, displaceable in an operating direction, to act upon a second gliding element, arranged displaceable perpendicular to the operating direction, that acts via a second wedge against the contact pressure upon the housing part.

A sensing system (110) positioned relative to the conveyor belt (34) to sense the physical configuration of the belt side links (44) and (46) as well as the inclination or tilt of the side links.

The present disclosure provides a system for monitoring a scraper chain based on a measurement on transmittance of a torsion spring and a method thereof. The system includes a sprocket-wheel torsion detection device, a fixing device, a wireless receiver, an A/D converter and an industrial computer. In the method, the relative torsion of the two sprocket wheels is converted into the density change of the torsion spring, the light transmission area is converted into the current value by the laser sensing panel, a varying range of the torsion spring is calculated by the industrial computer through the preset threshold and its own program to monitor the operating conditions of the chain. The method has a novel concept, a stable and reliable system, and a high promotion value.

The present disclosure provides a system for monitoring a scraper chain based on a measurement on transmittance of a torsion spring and a method thereof. The system includes a sprocket-wheel torsion detection device, a fixing device, a wireless receiver, an A/D converter and an industrial computer. In the method, the relative torsion of the two sprocket wheels is converted into the density change of the torsion spring, the light transmission area is converted into the current value by the laser sensing panel, a varying range of the torsion spring is calculated by the industrial computer through the preset threshold and its own program to monitor the operating conditions of the chain. The method has a novel concept, a stable and reliable system, and a high promotion value.