A tensioning mechanism for a conveyor system includes a support structure, a first carriage, a second carriage, and a brake mechanism. The first carriage is positioned proximate a first end of the support structure and is supported for movement relative to the support structure. The first carriage includes first rolls for receiving the belt such that movement of the first carriage modifies a tension in the belt. The second carriage is supported for movement relative to the support structure and includes second rolls and at least one return pulley. The second rolls are configured to support a portion of the belt extending between the first carriage and the second carriage. The brake mechanism is positioned proximate a second end of the support structure and includes a brake pulley and a brake selectively retarding rotation of the brake pulley. The brake pulley supports a portion of the belt extending between the brake mechanism and the return pulley.

The present invention relates to a transportation system for transporting products in a transportation direction. The transportation system comprises a conveyor unit for transporting the products in the transportation direction from a first end of the conveyor unit towards a second end of the conveyor unit, and a drive unit for driving the conveyor unit. The drive unit comprises a drive means and a first magnetic clutch component for transmitting torque to the conveyor unit. The conveyor unit comprises a second magnetic clutch component for receiving torque from the drive unit. The transportation system further comprises supporting means which includes first and second supporting elements with the first supporting elements arranged at the drive unit and the second support elements arranged at the conveyor unit, for supporting the conveyor unit such that at least the first magnetic clutch component and the second magnetic clutch component are aligned to each other, and for supporting torque transmitted from the drive unit to the conveyor unit. The present invention further relates to a drive unit as well as a conveyor unit, both adapted for use in a transportation system.

The present invention relates to a transportation system for transporting products in a transportation direction. The transportation system comprises a conveyor unit for transporting the products in the transportation direction from a first end of the conveyor unit towards a second end of the conveyor unit, and a drive unit for driving the conveyor unit. The drive unit comprises a drive means and a first magnetic clutch component for transmitting torque to the conveyor unit. The conveyor unit comprises a second magnetic clutch component for receiving torque from the drive unit. The transportation system further comprises supporting means which includes first and second supporting elements with the first supporting elements arranged at the drive unit and the second support elements arranged at the conveyor unit, for supporting the conveyor unit such that at least the first magnetic clutch component and the second magnetic clutch component are aligned to each other, and for supporting torque transmitted from the drive unit to the conveyor unit. The present invention further relates to a drive unit as well as a conveyor unit, both adapted for use in a transportation system.

A tensioning mechanism for a conveyor system includes a support structure, a first carriage, a second carriage, and a brake mechanism. The first carriage is positioned proximate a first end of the support structure and is supported for movement relative to the support structure. The first carriage includes first rolls for receiving the belt such that movement of the first carriage modifies a tension in the belt. The second carriage is supported for movement relative to the support structure and includes second rolls and at least one return pulley. The second rolls are configured to support a portion of the belt extending between the first carriage and the second carriage. The brake mechanism is positioned proximate a second end of the support structure and includes a brake pulley and a brake selectively retarding rotation of the brake pulley. The brake pulley supports a portion of the belt extending between the brake mechanism and the return pulley.

A tensioning mechanism for a conveyor system includes a support structure, a first carriage, a second carriage, and a brake mechanism. The first carriage is positioned proximate a first end of the support structure and is supported for movement relative to the support structure. The first carriage includes first rolls for receiving the belt such that movement of the first carriage modifies a tension in the belt. The second carriage is supported for movement relative to the support structure and includes second rolls and at least one return pulley. The second rolls are configured to support a portion of the belt extending between the first carriage and the second carriage. The brake mechanism is positioned proximate a second end of the support structure and includes a brake pulley and a brake selectively retarding rotation of the brake pulley. The brake pulley supports a portion of the belt extending between the brake mechanism and the return pulley.

A tensioning mechanism for a conveyor system includes a support structure, a first carriage, a second carriage, and a brake mechanism. The first carriage is positioned proximate a first end of the support structure and is supported for movement relative to the support structure. The first carriage includes first rolls for receiving the belt such that movement of the first carriage modifies a tension in the belt. The second carriage is supported for movement relative to the support structure and includes second rolls and at least one return pulley. The second rolls are configured to support a portion of the belt extending between the first carriage and the second carriage. The brake mechanism is positioned proximate a second end of the support structure and includes a brake pulley and a brake selectively retarding rotation of the brake pulley. The brake pulley supports a portion of the belt extending between the brake mechanism and the return pulley.

A conveyor system for transporting sand including a transportation element for moving the sand, and a drive subassembly for moving the transportation element on a predetermined path. The drive subassembly includes a sprocket driven by a motor for moving the transportation element along the predetermined path, and a floating idler wheel supportable by the transportation element and positioned on the predetermined path downstream from the sprocket. The floating idler wheel is movable between an upper location and a lower location, depending on the tension to which the transportation element is subjected. The drive subassembly also includes a limit switch activatable upon the floating idler wheel moving to the lower location. Upon activation, the limit switch transmits a signal to a motor switch to de-energize the motor.

A conveyor system for transporting sand including a transportation element for moving the sand, and a drive subassembly for moving the transportation element on a predetermined path. The drive subassembly includes a sprocket driven by a motor for moving the transportation element along the predetermined path, and a floating idler wheel supportable by the transportation element and positioned on the predetermined path downstream from the sprocket. The floating idler wheel is movable between an upper location and a lower location, depending on the tension to which the transportation element is subjected. The drive subassembly also includes a limit switch activatable upon the floating idler wheel moving to the lower location. Upon activation, the limit switch transmits a signal to a motor switch to de-energize the motor.

An equipment isolation system (10) comprising at least one equipment item (20) including a conveyor belt (21) energisable by an energy source (30), an automated conveyor belt clamp system (21A) operable for restricting conveyor belt (21) movement from movement under normal operating conditions as part of the isolation and a control system (50,260) for automatically isolating said conveyor belt (21) from said energy source (30) to an isolated state in an isolation process wherein said control system (50,260) operates said automated conveyor belt clamp system (21A) as a step in said isolation process.

An equipment isolation system (10) comprising at least one equipment item (20) including a conveyor belt (21) energisable by an energy source (30), an automated conveyor belt clamp system (21A) operable for restricting conveyor belt (21) movement from movement under normal operating conditions as part of the isolation and a control system (50,260) for automatically isolating said conveyor belt (21) from said energy source (30) to an isolated state in an isolation process wherein said control system (50,260) operates said automated conveyor belt clamp system (21A) as a step in said isolation process.