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缓冲托辊重量轻，旋转惯性小
缓冲托辊重量轻，旋转惯性小。托辊专用高分子材料重量轻，比重是钢材的七分之一，用这种材料制成的托辊，重量是普通托辊的二分之一左右，旋转惯性小，托辊与皮带之间的摩擦小。
The buffer idler has light weight and small rotation inertia. The special high polymer material for supporting roller is light in weight, and its specific gravity is one seventh of that of steel. The supporting roller made of this material is about one half of that of ordinary supporting roller, with small rotation inertia and small friction between supporting roller and belt.
缓冲托辊安装在输送机受料段的下方，减小落料时物料对输送带的冲击，以廷长输送带的使用寿命.缓冲托辊的间距一般100-600毫米。
The buffer idler is installed under the receiving section of the conveyor to reduce the impact of materials on the conveyor belt during blanking, so as to prolong the service life of the conveyor belt. The spacing of the buffer idler is generally 100-600mm.
缓冲托辊在安装方面一是提高安装的密度;二是经常检查，及时更换损坏的托辊。对于落料落差较大的输送带建议安装缓冲锁气器，将缓冲托辊用缓冲床代替。在选购方面根据缓冲托辊的特点提出一下几点注意事项:托辊径向跳动量、托辊灵活度、轴向窜动量、托辊防尘性能、防水性能、托辊轴向承载性能、托辊抗冲击性能等。
In the installation of buffer idler, first, improve the installation density; second, check frequently and replace the damaged idler in time. For the conveyor belt with large drop, it is recommended to install a buffer air lock and replace the buffer idler with a buffer bed. According to the characteristics of the buffer idler, the following points should be paid attention to: the radial runout of the idler, the flexibility of the idler, the axial displacement, the dust-proof performance, the water-proof performance, the axial bearing performance and the impact resistance of the idler.
(1)缓冲托辊温度保护
(1) temperature protection of buffer idler
带式输送机滚筒与皮带摩擦使其温度超限时，紧贴滚筒安装的检测装置发出超温信号，接收机收到信号后，经3s 延时，使执行部分动作，切断电动机供电，输送机自动停转，起到温度保护作用。
When the temperature of the belt conveyor exceeds the limit due to the friction between the pulley and the belt, the detection device installed close to the pulley will send out the over temperature signal. After receiving the signal, the receiver will delay for 3S to make the executive part act, cut off the power supply of the motor, and the conveyor will automatically stop running, thus playing the role of temperature protection.
(2)托辊组速度保护
(2) speed protection of idler set
若输送机发生故障，如电动机烧毁、机械传动部分损坏、皮带或链子拉断、皮带打滑等，安装在输送机被动机件上的事故传感器SG中的磁控开关不能闭合或不能按正常速度闭合这时控制系统将按反时限特性经一定延时后，速度保护电路起作用，使执行部分动作，切断电动机供电，以避免事故扩大。
In case of conveyor failure, such as motor burning, mechanical transmission part damage, belt or chain breaking, belt slipping, etc., the magnetic control switch in the accident sensor SG installed on the driven parts of the conveyor can not be closed or can not be closed according to the normal speed. At this time, the control system will work according to the inverse time characteristic after a certain delay, and the speed protection circuit will make the executive part act and cut Cut off the power supply of the motor to avoid the expansion of the accident.
The buffer idler has light weight and small rotation inertia. The special high polymer material for supporting roller is light in weight, and its specific gravity is one seventh of that of steel. The supporting roller made of this material is about one half of that of ordinary supporting roller, with small rotation inertia and small friction between supporting roller and belt.
缓冲托辊安装在输送机受料段的下方，减小落料时物料对输送带的冲击，以廷长输送带的使用寿命.缓冲托辊的间距一般100-600毫米。
The buffer idler is installed under the receiving section of the conveyor to reduce the impact of materials on the conveyor belt during blanking, so as to prolong the service life of the conveyor belt. The spacing of the buffer idler is generally 100-600mm.
缓冲托辊在安装方面一是提高安装的密度;二是经常检查，及时更换损坏的托辊。对于落料落差较大的输送带建议安装缓冲锁气器，将缓冲托辊用缓冲床代替。在选购方面根据缓冲托辊的特点提出一下几点注意事项:托辊径向跳动量、托辊灵活度、轴向窜动量、托辊防尘性能、防水性能、托辊轴向承载性能、托辊抗冲击性能等。
In the installation of buffer idler, first, improve the installation density; second, check frequently and replace the damaged idler in time. For the conveyor belt with large drop, it is recommended to install a buffer air lock and replace the buffer idler with a buffer bed. According to the characteristics of the buffer idler, the following points should be paid attention to: the radial runout of the idler, the flexibility of the idler, the axial displacement, the dust-proof performance, the water-proof performance, the axial bearing performance and the impact resistance of the idler.
(1)缓冲托辊温度保护
(1) temperature protection of buffer idler
带式输送机滚筒与皮带摩擦使其温度超限时，紧贴滚筒安装的检测装置发出超温信号，接收机收到信号后，经3s 延时，使执行部分动作，切断电动机供电，输送机自动停转，起到温度保护作用。
When the temperature of the belt conveyor exceeds the limit due to the friction between the pulley and the belt, the detection device installed close to the pulley will send out the over temperature signal. After receiving the signal, the receiver will delay for 3S to make the executive part act, cut off the power supply of the motor, and the conveyor will automatically stop running, thus playing the role of temperature protection.
(2)托辊组速度保护
(2) speed protection of idler set
若输送机发生故障，如电动机烧毁、机械传动部分损坏、皮带或链子拉断、皮带打滑等，安装在输送机被动机件上的事故传感器SG中的磁控开关不能闭合或不能按正常速度闭合这时控制系统将按反时限特性经一定延时后，速度保护电路起作用，使执行部分动作，切断电动机供电，以避免事故扩大。
In case of conveyor failure, such as motor burning, mechanical transmission part damage, belt or chain breaking, belt slipping, etc., the magnetic control switch in the accident sensor SG installed on the driven parts of the conveyor can not be closed or can not be closed according to the normal speed. At this time, the control system will work according to the inverse time characteristic after a certain delay, and the speed protection circuit will make the executive part act and cut Cut off the power supply of the motor to avoid the expansion of the accident.
