Compost trommel screen is a rolling ring set on the periphery of the device body, through the roller of the driving device to drive the rolling ring and screen body rotation, the equipment to achieve the screening of materials. Because the equipment is inclined to set, in order to maintain the balance and stability of the screen body, the need to set up a supporting wheel on the edge of the two roller rings, to offset the roller and the weight of the material in the direction of the material flow, limiting the axial movement of the screen body along the inclined direction. Due to manufacturing errors or wear of the roller, when the roller rotates, only one of the two supporting wheels will work, causing the unbalanced force and noise, affecting the use of trommel screen.
The purpose of the utility model is to provide a limit compensation device for the rolling ring of the equipment, the device eliminates the noise caused by the collision between the rolling ring and the support wheel, so that the force of the compost trommel screen is balanced and the operation is stable. The utility model is realized by the following measures, including a screen body, a rolling ring and a support wheel, which is characterized as follows: The support wheel has two, one of which is a floating support wheel: The roller of the floating support wheel is installed on the roller bracket through the bearing, the roller bracket is installed on the bottom plate through the sliding rail, and the end of the bottom plate is provided with a spring seat: A spring is arranged between the spring seat and the roller support. The roller and bracket can overcome the resistance of the spring and move on the slide rail. The spring is a compound spring.
The utility model has the beneficial effect that one of the two fixed supporting wheels of the equipment is changed into a floating supporting wheel, which jointly bears the component force of the weight of the drum and the material in the direction of the material flow. Since the floating support wheel can move along the slide rail, under the action of the spring, the roller always contacts the end face of the roller. The error caused by manufacturing and wear is compensated and the noise caused by the collision between the roller and the rolling ring is avoided. The combination of slide rail and spring is used to reduce the friction resistance between the rolling ring and the support wheel during operation. The roller has the characteristics of smooth movement, safety and reliability, and long service life of the rolling ring, suitable for all sizes of compost trommel screen.
