CN108704583A - The pressure roller of granulator and ring moulds gap adjustment structure - Google Patents

Abstract

This technology provides a gap adjustment structure between the pressure roller and the ring die of the granulator that can improve the service life of the pressure roller and the bearing, and is easy to adjust, including the pressure roller seat and the pressure roller cover plate; the pressure roller shaft is rotated on the upper eccentric ring gear and the inner hole of the lower eccentric ring gear, the pressure roller connected to the pressure roller shaft is located between the upper eccentric ring gear and the lower eccentric ring gear; the outer circumference and inner hole of the upper eccentric ring gear and the lower eccentric ring gear are eccentrically arranged; The outer peripheries of the upper eccentric ring gear and the lower eccentric ring gear are respectively embedded in the sliding holes on the pressure roller cover plate and the pressure roller seat, and have external teeth; Adjustment gear; the upper adjustment gear and the lower adjustment gear are set on the same adjustment shaft, when the adjustment shaft is rotated, the upper adjustment gear and the lower adjustment gear rotate, the upper eccentric ring gear and the lower eccentric ring gear rotate in the sliding hole, and the pressure roller The position of the axis of the shaft relative to the cover plate of the pressure roller is changed to change the gap between the pressure roller and the ring die.

Description

Gap adjustment structure between pressure roller and ring die of granulator

technical field

The technology relates to a granulator, specifically, an adjustment mechanism for adjusting the gap between a pressure roller and a ring die on a granulator.

Background technique

The traditional granulator uses an eccentric shaft to adjust the gap between the pressing roller and the ring die.

The specific structure is generally that the upper and lower ends of the pressure roller shaft are respectively connected to the pressure roller cover plate and the pressure roller shaft. The middle part of the pressure roller shaft has an eccentric journal that is eccentric to the axis of the pressure roller shaft. on the journal. When it is necessary to adjust the gap between the pressure roller and the ring die, it is necessary to rotate the pressure roller shaft at a certain angle, so that the eccentric journal rotates around the pressure roller axis at a certain angle, thereby changing the distance between the pressure roller and the ring die. In this mechanism, the pressure roller is in operation, the pressure roller shaft does not rotate, the pressure roller and the outer ring of the bearing rotate, and the stress point of the inner ring of the bearing is always a point, so the bearing always starts to wear from this point, reducing the The service life of the bearing; moreover, the pressure roller is in contact with the bearing, and the high temperature generated by the pressure roller is easily transmitted to the bearing, which makes the temperature of the bearing higher, and it needs to be filled with high-temperature grease regularly. It will dry out quickly, which will also reduce the service life of the bearing.

Contents of the invention

The purpose of this technology is to provide a structure for adjusting the gap between the pressure roller and the ring die of the granulator, which can improve the service life of the pressure roller and the bearing, and is convenient to adjust.

The gap adjustment structure between the pressure roller and the ring die of the granulator described in this technology includes a pressure roller seat and a pressure roller cover on the drive shaft, and a plurality of pressure rollers are evenly distributed on the same circumference; the upper and lower sides of the pressure roller shaft Each end is set in the inner hole of the upper eccentric ring gear and the lower eccentric ring gear through bearing rotation, and the pressure roller connected to the pressure roller shaft is located between the upper eccentric ring gear and the lower eccentric ring gear; the pressure roller, the pressure roller shaft, The inner hole is set coaxially, the outer circumference of the upper eccentric gear ring and the lower eccentric gear ring are eccentrically set with the inner hole; the outer circumferences of the upper eccentric gear ring and the lower eccentric gear ring are respectively embedded in the sliding holes on the roller cover plate and the roller seat inside, and has external teeth; on the pressure roller cover plate and the pressure roller seat, there are also upper adjustment gears and lower adjustment gears that mesh with the outer teeth on the upper eccentric ring gear and the lower eccentric ring gear respectively; the upper adjustment gear and the lower adjustment gear The lower adjustment gear is set on the same adjustment shaft. When the adjustment shaft is turned, the upper adjustment gear and the lower adjustment gear rotate, the upper eccentric ring gear and the lower eccentric ring gear rotate in the sliding hole, and the axis of the pressure roller shaft is relative to the pressure roller. The position of the cover plate changes, thereby changing the gap between the pressure roller and the ring die.

The gap adjustment structure between the pressure roller and the ring die of the above-mentioned granulator, the upper end of the adjustment shaft is exposed on the upper surface of the pressure roller cover plate, the adjustment wrench is fixed on the upper end of the adjustment shaft, and the nut seat is respectively fixed on both sides of the adjustment end of the adjustment wrench. The ends of the two screws that are threaded on the seat are respectively in contact with the two sides of the adjusting end of the adjusting wrench.

The gap adjustment structure between the pressure roller and the ring die of the above-mentioned granulator, the pressure roller is connected to the pressure roller shaft through a key.

In the gap adjustment structure between the pressure roller and the ring die of the above-mentioned granulator, the adjustment shaft is in the shape of a hexagonal prism, and the upper adjustment gear and the lower adjustment gear have hexagonal shaft holes matching the hexagonal prism adjustment shaft.

In the gap adjustment structure between the pressure roller and the ring die of the above-mentioned granulator, the sliding hole on the pressure roller cover plate is opposite to the sliding hole on the pressure roller seat up and down.

The gap adjustment structure between the pressure roller and the ring die of the above-mentioned granulator has four pressure rollers.

Beneficial effects of this technology: In this structure, the pressure roller and the pressure roller shaft are integrated, and the upper and lower ends of the pressure roller shaft rotate relative to the pressure roller cover plate and the pressure roller shaft through the bearing. The outer ring of the bearing is the main force-bearing surface, and the force-bearing surface At the same time, the force point of the inner ring of the bearing is also constantly changing 360° during use, and the possibility of bearing damage is reduced; the amount of high-temperature grease used is reduced; in addition, the pressure roller does not contact the bearing, and the distance is relatively long. It also reduces the temperature of the bearing, thereby prolonging the service life of the bearing.

Description of drawings

Figure 1 is a schematic diagram of the gap adjustment structure between the ring die, machine base, pressure roller and ring die;

Fig. 2 is a top view of the gap adjustment structure between the pressure roller and the ring die;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 3;

Fig. 5 is a top view of the pressure roller seat, the lower eccentric ring gear and the like.

Detailed ways

Referring to the gap adjustment structure 100 between the pressure roller and the ring die of the granulator shown in Figure 1-2, the drive shaft 1 is provided with a pressure roller seat 2, a pressure roller cover plate 3, and four pressure roller shafts 4 that rotate with the drive shaft. The upper and lower ends of the upper and lower eccentric ring gears are rotated through bearings 19 and installed in the inner holes of the upper eccentric ring gear 5 and the lower eccentric ring gear 6, and the pressure roller 16 connected to the pressure roller shaft by a key is located between the upper eccentric ring gear and the lower eccentric ring gear. ; Four pressure rollers are evenly distributed on the same circumference.

The pressure roller, the pressure roller shaft, the inner hole of the upper eccentric ring gear, and the inner hole of the lower eccentric ring gear are arranged coaxially, and the outer circumference and the inner hole of the upper eccentric ring gear and the lower eccentric ring gear are arranged eccentrically.

The outer periphery of the upper eccentric ring gear 5 is embedded in the sliding hole 7 on the cover plate of the pressing roller, the outer periphery of the lower eccentric ring gear is embedded in the sliding hole 8 on the pressing roller seat, the outer periphery of the upper eccentric ring gear 5 and the outer periphery of the lower eccentric ring gear Both have external teeth.

Referring to Figures 2 and 3, an upper adjustment gear 9 meshing with the outer teeth of the upper eccentric ring gear is also provided on the pressure roller cover plate, and a lower adjustment gear 9 meshing with the outer teeth of the lower eccentric ring gear is arranged on the pressure roller seat. Adjustment gear 10. The upper adjustment gear and the lower adjustment gear form a pair, both of which have a hexagonal shaft hole, and are fitted together on the same hexagonal prism-shaped adjustment shaft 11 through the hexagonal shaft hole. The upper end of the adjustment shaft exposes the upper part of the pressure roller cover plate to fix the adjustment wrench 12, fix the nut seat 14 on both sides of the adjustment end 13 of the adjustment wrench, and the ends of the two screws 15 that are matched with the threads on the two nut seats Contact the two sides of the adjusting end of the adjusting wrench respectively.

When the two screws 15 are turned, the adjusting end 13 of the adjusting wrench is swung to drive the adjusting shaft 11 to rotate, the upper adjusting gear and the lower adjusting gear rotate, the upper eccentric gear ring and the lower eccentric gear ring rotate in the sliding hole, and the sliding hole The axis (or the axis of the outer circumference of the eccentric ring gear) is eccentric. The position of the axis of the eccentric pressure roller shaft relative to the pressure roller cover (or pressure roller seat) changes, thereby changing the pressure roller 16 and the ring die fixed on the machine base 18. 17 gaps between.

Claims (6)

1. roller seat, pressure roller cover board in the pressure roller of granulator and ring moulds gap adjustment structure, including setting drive shaft, multiple pressures Roller is distributed on the same circumference；It is characterized in that：The upper and lower side of pressure roller shaft respectively by bearing be rotatably arranged on upper eccentric gear ring and In the endoporus of lower bias gear ring, it is connected to the pressure roller in pressure roller shaft and is located between upper eccentric gear ring and lower eccentric gear ring；Pressure roller, pressure Roll shaft, endoporus are coaxial arrangements, and the periphery and endoporus of upper bias gear ring and lower eccentric gear ring are eccentric settings；It is upper bias gear ring and The periphery of lower bias gear ring is respectively embedded into the sliding eye on pressure roller cover board and roller seat, and has external tooth；In pressure roller cover board and The upper adjustment gear being meshed respectively with the external tooth on upper eccentric gear ring and lower eccentric gear ring and downward are additionally provided on roller seat Save gear；Upper adjustment gear and lower adjustment gear are arranged in the same adjustment axis, when rotate adjustment axis, upper adjustment gear with Lower adjustment gear rotation, upper bias gear ring and lower eccentric gear ring rotate in sliding eye, and the axis of pressure roller shaft is relative to roll cover The position change of plate, and then change the gap between pressure roller and ring moulds.

2. the pressure roller of granulator as described in claim 1 and ring moulds gap adjustment structure, it is characterized in that：Expose adjustment axis upper end Pressure roller cover board upper surface, adjustment axis upper end secured adjusted spanner distinguish fixing nut seat in the both sides for adjusting the adjustable side of spanner, It is contacted respectively with the two sides for adjusting spanner adjustable side with the end of two screws of the screw-thread fit on two nut seats.

3. the pressure roller of granulator as described in claim 1 and ring moulds gap adjustment structure, it is characterized in that：Pressure roller passes through key connection In pressure roller shaft.

4. the pressure roller of granulator as described in claim 1 and ring moulds gap adjustment structure, it is characterized in that：Adjustment axis is hexagonal prisms Have and the matched hexagon axis hole of hexagon adjustment axis in shape, upper adjustment gear and lower adjustment gear.

5. the pressure roller of granulator as described in claim 1 and ring moulds gap adjustment structure, it is characterized in that：It is slided on pressure roller cover board Hole and the sliding eye on roller seat are opposite up and down.

6. the pressure roller of granulator as described in claim 1 and ring moulds gap adjustment structure, it is characterized in that：Pressure roller is 4.