The bottom of the chain plate of the heavy duty apron feeder used in the existing mine is provided with more than 200 independent wheel support components, each wheel support component is provided with 2 sets of bearings, and the retaining edge of the wheel lift chain plate. Due to the poor operating environmental conditions of the mine and open-air production, the mud, water and dust of the mine are easy to penetrate into the bearing, which is easy to cause the bearing to lock up. And often affected by the impact of large materials, the bearing in the support wheel is very easy to damage, resulting in the support wheel stuck and wear, the distance between the support wheel is fixed, and it can not be flexibly adjusted: at the same time, these support wheel components are hidden at the bottom of the chain plate, it is difficult to find in time when there is a failure, lubrication maintenance is difficult, and replacement is difficult. The width is the same as the width of the plate belt, and several rows are arranged on the supporting wheel along the ring tape width: the supporting wheel of the feeder is also set up multiple groups of independent supporting wheel devices at the bottom of the conveyor groove, when one of the groups is stuck, it is difficult to find in time, the lubrication and maintenance is difficult, and the replacement is difficult: Therefore, there is an urgent need for a simple and durable wheel support device that can reduce maintenance costs and is easy to maintain. It is only used to assist in understanding the conception and technical scheme of the utility model. The main purpose is to overcome the defects of the above background technology and provide a flexible, low cost, easy maintenance and durable wheel support device. A wheel support device for heavy duty apron feeder is proposed, comprising: Support seat, support shaft and support wheel, the support seat is arranged on both sides of the heavy apron feeder box, and the distance between the support seat on both sides is greater than the width of the chain plate of the heavy apron feeder, the support shaft is an overall through shaft structure, the middle of the support shaft is provided with a spline area, both ends of the support shaft are connected with the support seat. And parallel to the spindle of the heavy-duty apron feeder: The supporting wheel is arranged on the supporting shaft and is connected with the chain plate of the heavy apron feeder. The center of the supporting wheel is provided with an internal spline shaft hole, the internal spline shaft hole is matched with the spline area, so that the supporting wheel can slide along the supporting shaft to adjust the position, and the supporting wheel is provided with a positioning ring on both sides. Used for positioning the supporting wheel after adjusting the position; Prevent axle movement. Preferably, the support wheel comprises a wheel teaching, a buffer ring and a wear ring, the internal spline shaft hole is arranged in the center of the wheel hub, the buffer ring around the fixed sleeve on the wheel teaching outer circumference, the wear ring around the fixed sleeve on the buffer ring outer circumference, the wear ring and the chain plate contact the chain plate to support the chain plate.