CN-224225995-U - Emergency stop safety device of belt conveyor

Abstract

The utility model relates to the technical field of industrial belt conveyors, in particular to a sudden stop safety device of a belt conveyor, which comprises a conveying belt, a head pulley, a tail pulley, a riding wheel, a tensioning device, a controller, a mechanical arm switch, an infrared switch and an adjustable bracket, wherein the conveying belt is sleeved on the head pulley and the tail pulley, the riding wheel is arranged below the conveying belt, a contact surface supports the conveying belt for conveying, the tensioning device is arranged at the tensioning position of the tail pulley conveying belt, the mechanical arm switch is arranged on the adjustable bracket close to the tail pulley, the opening direction of the mechanical arm switch is the running direction of the belt conveyor, the infrared switch is arranged at the top of the upstream adjustable bracket of the mechanical arm switch, the adjustable bracket is used for adjusting and fixing a telescopic rod of the adjustable bracket through a screw and a nut, and signal wires of the mechanical arm switch and the infrared switch are connected to the input end of the controller, so that multiple operations for emergently stopping the belt conveyor are realized, and casualties are prevented.

Inventors

• TIAN JIAN
• WANG FENG
• XI YUFENG
• LI WEI

Assignees

• 本溪钢铁(集团)矿业辽阳马耳岭球团有限公司
• 本溪钢铁（集团）矿业有限责任公司

Dates

Publication Date

20260512

Application Date

20250513

Claims (7)

1. 1. The utility model provides a belt conveyor scram safety device, includes conveyer belt, head pulley, tail pulley, riding wheel and straining device, the conveyer belt cover is established on head pulley and tail pulley, the riding wheel sets up the contact surface and supports the conveyer belt transportation under the conveyer belt, straining device sets up in the taut department of tail pulley conveyer belt, its characterized in that still includes controller, arm switch, infrared switch and adjustable support, arm switch sets up on the adjustable support that is close to the tail pulley, arm switch opens the direction and is belt conveyor direction of operation, infrared switch sets up at the upper reaches adjustable support top of arm switch, infrared switch's height is higher than belt transportation's goods height, adjustable support passes through the telescopic link of screw, nut regulation and fixed adjustable support, arm switch and infrared switch's signal line is connected to the controller input, the output of controller is connected to belt conveyor's scram system.
2. 2. The emergency stop safety device of the belt conveyor according to claim 1, wherein the mechanical arm switches are symmetrically arranged on the adjustable supports on two sides of the belt, the mechanical arm switches are provided with mechanical arms, the length of the mechanical arms is 1/3-1/2 of the width of the frame of the belt conveyor, the unidirectional opening direction is the running direction of the belt conveyor, and the disconnection mode is axial rotation.
3. 3. The emergency stop safety device of a belt conveyor according to claim 2, wherein the rotation angle of the mechanical arm is 0-90 °.
4. 4. The belt conveyor scram safety device as in claim 1 wherein the infrared switch comprises an infrared emitting end and an infrared receiving end symmetrically disposed on adjustable brackets on both sides of the belt.
5. 5. The emergency stop safety device of the belt conveyor according to claim 1, wherein the height of the adjustable support is increased by 0-300 mm on the basis of the height of the conveying surface of the belt conveyor, the lowest point of the telescopic rod of the adjustable support is 50-150 mm higher than the conveying surface of the belt conveyor, and the highest point of the telescopic rod of the adjustable support is not higher than 250-350 mm of the conveying surface of the belt conveyor.
6. 6. The belt conveyor emergency stop safety device according to claim 1, wherein the adjustable support at the position of the infrared switch is set at a position greater than the belt speed by +3m of the switch reaction time.
7. 7. The belt conveyor scram safety device as in claim 1 further comprising a tension sensor disposed on the tensioning device, the tension sensor signal line connected to the analog input of the controller.

Description

Emergency stop safety device of belt conveyor Technical Field The utility model relates to the technical field of industrial belt conveyors, in particular to a sudden stop safety device of a belt conveyor. Background The belt conveyor is widely applied in industrial production, and in the production application process, the cross operation of people and machines is needed, or the operation and maintenance of people around the belt conveyor are needed for operation. During the period that the belt feeder conveyer transported the material, because the water content, granularity, the viscosity etc. of transportation material are different, in actual operation in-process, the material is easy to glue the material in belt conveyer aircraft nose unloading funnel department, need adopt the manual clearance unloading funnel of instrument. For the belt conveyor with the height lower than the ground or close to the ground, personnel can easily drop to the conveying surface of the belt conveyor to cause casualties if personnel station errors, tools errors and protection failure conditions occur in the peripheral operation process. In addition, in the process of checking and maintaining the belt conveyor, personnel need to stand on the conveying surface of the belt conveyor to operate, and if the connection is not confirmed in place, the connection is not monitored in place and other management defect factors, personnel casualties are caused when the belt conveyor is started by mistake. Disclosure of Invention The utility model provides a belt conveyor emergency stop safety device, which is used for realizing multiple operations on emergency stop of a belt conveyor through a mechanical arm emergency stop switch, an infrared emergency stop switch and a tension sensor when personnel fall onto a conveying surface of the belt conveyor or the belt conveyor is started by mistake in the process of inspection and maintenance, so that casualties are prevented. In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: The utility model provides a belt conveyor scram safety device, includes conveyer belt, head pulley, tail pulley, riding wheel and straining device, the conveyer belt cover is established on head pulley and tail pulley, the riding wheel sets up the contact surface under the conveyer belt and supports the conveyer belt transportation, straining device sets up in the taut department of tail pulley conveyer belt, still includes controller, arm switch, infrared switch and adjustable support, arm switch sets up on the adjustable support that is close to the tail pulley, the arm switch opens the direction and is belt conveyor direction of operation, the infrared switch sets up at the adjustable support top of the upper reaches of arm switch, the height of infrared switch is higher than the goods height of belt transportation, adjustable support passes through the telescopic link of screw, nut regulation and fixed adjustable support, arm switch and infrared switch's signal line is connected to the controller input, the output of controller is connected to the scram system of belt conveyor. Further, the mechanical arm switches are symmetrically arranged on the adjustable supports on two sides of the belt, the mechanical arm switches are provided with mechanical arms, the length of each mechanical arm is 1/3-1/2 of the width of the frame of the belt conveyor, the unidirectional opening direction is the running direction of the belt conveyor, and the disconnection mode is axial rotation. Further, the rotation angle of the mechanical arm is 0-90 degrees. Further, the infrared switch comprises an infrared emission end and an infrared receiving end, the infrared emission end and the infrared receiving end are symmetrically arranged on the adjustable supports on two sides of the belt, and a signal wire of the infrared switch is connected to an analog input end of the controller. Further, the height of the adjustable support is increased by 0-300 mm on the basis of the height of the conveying surface of the belt conveyor, the lowest point of the telescopic rod of the adjustable support is 50-150 mm higher than the conveying surface of the belt conveyor, and the highest point of the telescopic rod of the adjustable support is not higher than 250-350 mm of the conveying surface of the belt conveyor. Further, the adjustable bracket at the position of the infrared switch is arranged at a position which is larger than the speed of the belt and the response time of the switch is +3m. Further, the tension sensor is arranged on the tensioning device, and a signal wire of the tension sensor is connected to an analog quantity input end of the controller. Compared with the prior art, the utility model has the beneficial effects that: 1) The infrared switch, the mechanical arm switch and the tension sensor at the tension device in the upstream-downstream relationship provide a multiple e