CN217144494U - Discharge carrier roller device of double-screw granulator - Google Patents

Abstract

The utility model provides a twin-screw granulator ejection of compact bearing roller device, including the fixed axle, the bearing roller body, a bearing, the baffle, be equipped with a plurality of annular positioning groove on the periphery of bearing roller body, these annular positioning groove along the axial evenly distributed of bearing roller body, be equipped with the mounting hole that runs through along the axial in the bearing roller body, the both ends hole enlargement of mounting hole forms the bearing pilot hole, the both ends of bearing roller body are equipped with the ring flange respectively, the middle part of baffle is equipped with the via hole, the bearing assembles respectively in the bearing pilot hole at bearing roller body both ends, the baffle assembles respectively in the ring flange outside at bearing roller body both ends, and link to each other through many fixing bolt are fixed, form the protection to the bearing, the fixed axle sets up in the mounting hole of bearing roller body, and both ends pass the via hole of corresponding end baffle respectively, form clearance fit. The utility model discloses simple structure, long service life can form reliable, stable support to the linear material of the twin-screw granulator ejection of compact, guarantee to cut grain quality.

Description

Discharge carrier roller device of double-screw granulator

Technical Field

The utility model relates to a chemical industry field, in particular to double screw granulator ejection of compact bearing roller device.

Background

The double-screw granulator discharges linear materials with the diameter of about 5mm, and the linear materials are discharged to a cooling water tank through the granulator head to be cooled, and then are sent to a granulator for granulation after being dehydrated and dried by a fan. The length of the strand-shaped material from the granulator head to the granulator is about 5m, so the strand-shaped material needs to be supported by supporting points to pass through.

At present, a supporting point for supporting the linear materials of the double-screw granulator is usually a carrier roller, and the carrier roller is simple in structure and low in maintenance cost. However, the carrier roller commonly used at present is a straight barrel type carrier roller, and a bearing matched with the carrier roller is exposed outside, so that the clamping stagnation phenomenon easily occurs during long-time operation, the linear material is seriously abraded, and the granulating quality is seriously influenced. In addition, because the length of the linear material is long, the linear material is easy to fall off from the carrier roller to the supporting shaft, so that the linear material is broken, and the normal operation of a granulator and a granulator is seriously influenced.

Therefore, how to design a stable and reliable carrier roller device for preventing linear materials from falling is a problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

The utility model aims at prior art not enough, provide a twin-screw granulator ejection of compact bearing roller device, its simple structure, long service life can form reliable, stable support to the linear material of the twin-screw granulator ejection of compact, guarantee to cut grain quality.

The technical scheme of the utility model is that: a double-screw granulator discharging carrier roller device comprises a fixed shaft, a carrier roller body, bearings and baffle plates, wherein a plurality of annular positioning grooves are formed in the circumferential surface of the carrier roller body and are uniformly distributed along the axial direction of the carrier roller body, mounting holes penetrating along the axial direction are formed in the carrier roller body, the two ends of each mounting hole are expanded to form bearing assembly holes, flanges are respectively arranged at the two ends of the carrier roller body, the number of the baffle plates is two, a through hole is formed in the middle of each baffle plate, the number of the bearings is two, the two bearings are respectively assembled in the bearing assembly holes at the two ends of the carrier roller body, the baffle plates are respectively assembled on the outer sides of the flanges at the two ends of the carrier roller body and are fixedly connected through a plurality of fixing bolts to shield the bearings, the fixed shaft is arranged in the mounting holes of the carrier roller body, and the two ends of the fixed shaft respectively penetrate through the through holes of the baffle plates at the corresponding ends to form clearance fit, the discharge carrier roller device of the double-screw granulator is formed by combination.

Furthermore, threaded holes are formed in two ends of the fixing shaft respectively, and fastening bolts are matched with the threaded holes in a threaded mode.

Furthermore, the inside of via hole is equipped with the opening annular, sets up the jump ring in this opening annular, forms axial positioning to the bearing.

Preferably, the cross section of the annular positioning groove is semicircular, the radius of the annular positioning groove is 2mm, and the distance between adjacent annular positioning grooves is 12 mm.

Furthermore, the fixing bolts are countersunk bolts, the screw rods of the fixing bolts extend outwards, and the screw caps of the fixing bolts do not exceed the inner side surface of the flange plate.

Adopt above-mentioned technical scheme to have following beneficial effect:

1. the double-screw granulator discharging carrier roller device comprises a fixed shaft, a carrier roller body, a bearing and a baffle plate. The carrier roller is characterized in that a plurality of annular positioning grooves are formed in the circumferential surface of the carrier roller body and are uniformly distributed along the axial direction of the carrier roller body, the annular positioning grooves are used for axially positioning linear materials discharged by the double-screw granulator, the motion track of the linear materials and the distance between adjacent linear materials are kept, the phenomenon that adjacent linear materials are adhered or knotted is avoided, and the granulating quality of a downstream granulator is guaranteed. The carrier roller body is internally provided with an installation hole which penetrates along the axial direction, and two ends of the installation hole are expanded to form a bearing assembly hole. The two ends of the carrier roller body are respectively provided with the flange plates, the inner sides of the flange plates are used for axially limiting linear materials, the linear materials can be effectively prevented from falling off from the carrier roller body, the extreme condition that the linear materials are broken is avoided, and the normal work of a double-screw granulator and a downstream granulator is ensured. The double-screw granulator discharging carrier roller device is formed by combining two baffles, namely, the carrier roller body is rotatably matched on a fixed shaft through a bearing to reduce the rotating resistance of the carrier roller body, so that the abrasion phenomenon caused by relative sliding of linear materials and the carrier roller body is avoided, the granulating quality is ensured, in addition, the amount of foreign matters entering the bearing can be greatly reduced through the matching of the fixed shaft and the baffles, and the long-time normal work of the bearing is ensured, and then keep the low rotational resistance of bearing roller body, in addition, the baffle passes through the flange cooperation on the ring flange, still has installation, dismantles convenient, swift advantage, can effectively reduce maintenance work volume.

2. The inboard of via hole is equipped with the opening annular, sets up the jump ring in this opening annular, forms axial positioning to the bearing, guarantees the stability of bearing, avoids the bearing roller body to rock, can effectively guarantee the downstream and cut grain quality.

3. The cross-section semicircular in shape of annular positioning groove, its radius is 2mm, and the distance of adjacent annular positioning groove is 12mm, on guaranteeing to line strip material formation axial positioning's basis, avoids line strip material card to sink in annular positioning groove, stops the cracked condition of line strip material appearance when breaking away from the bearing roller body.

4. The fixing bolts are countersunk bolts, the screw rods of the fixing bolts extend outwards, and the screw caps of the fixing bolts do not exceed the inner side surface of the flange plate, so that the fixing bolts are prevented from interfering with linear materials, and the linear materials are ensured to normally pass through the carrier roller body.

The following further description is made with reference to the accompanying drawings and detailed description.

Drawings

Fig. 1 is a schematic structural diagram (symmetrical structure) of the present invention.

In the drawing, 1 is the fixed axle, 2 is the bearing body, 3 is the bearing, 4 is the baffle, 5 is annular positioning groove, 6 is the mounting hole, 7 is the bearing pilot hole, 8 is the ring flange, 9 is the via hole, 10 is fixing bolt, 11 is the screw hole, 12 is fastening bolt, 13 is the opening annular groove, 14 is the jump ring.

Detailed Description

The utility model discloses in, do not mark equipment, the part of concrete structure or model select for use the equipment or the part of chemical industry field conventionality usually, do not mark the connected mode that connected mode or the manufacturer's suggestion that are chemical industry field conventionality usually of concrete connected mode.

Referring to fig. 1, a specific embodiment of a discharge idler device of a twin-screw granulator is shown. The double-screw granulator discharging carrier roller device comprises a fixed shaft 1, a carrier roller body 2, a bearing 3 and a baffle 4. The circumference of bearing roller body 2 is equipped with a plurality of annular positioning groove 5, and these annular positioning groove 5 are along the axial evenly distributed of bearing roller body 2, and to the diameter of line form material for 5mm, the cross-section design of annular positioning groove 5 is semi-circular, and its radius is 2mm, and the distance of adjacent annular positioning groove is 12 mm. The carrier roller body 2 is provided with a mounting hole 6 which penetrates along the axial direction, two ends of the mounting hole 6 are expanded to form a bearing mounting hole 7, obviously, the aperture of the bearing mounting hole is matched with the outer diameter of the outer ring of the bearing, and the length of the bearing mounting hole is matched with the width of the bearing. The two ends of the carrier roller body 2 are respectively provided with a flange 8, generally, the flange and the carrier roller body are manufactured in an integrated mode, the connecting holes formed in the flange are counter bores, and the counter bores are located on the inner side face of the flange. The number of baffle 4 is two, and the middle part of baffle 4 is equipped with via hole 9, and is specific, and the baffle design is circular. The quantity of bearing 3 is two, assembles respectively in the bearing pilot hole 7 at 2 both ends of bearing roller body, baffle 4 assembles respectively in the 8 outsides of ring flange at 2 both ends of bearing roller body, and links to each other through many fixing bolt 10 are fixed, shield bearing 3 formation, and is concrete, fixing bolt 10 is countersunk head bolt, the screw rod of each fixing bolt extends outwards, after passing ring flange and baffle, with the nut screw-thread fit that corresponds, and fixing bolt's nut is located the counter bore, do not surpass ring flange 8's medial surface, in order to improve the stability of bearing roller body, inboard at via hole 9 is equipped with opening annular 13, set up jump ring 14 in this opening annular 13, form axial positioning to bearing 3. The fixed shaft 1 is arranged in a mounting hole 6 of the carrier roller body 2 and is in interference fit with an inner ring of the bearing, and two ends of the fixed shaft respectively penetrate through holes 9 of the corresponding end baffles to form clearance fit, so that the fixed shaft and the bearing are combined to form the double-screw granulator discharging carrier roller device. Generally, both ends of the fixing shaft need to be connected to the frame, and therefore, in order to facilitate installation and removal of the fixing shaft, threaded holes 11 are respectively formed at both ends of the fixing shaft 1, and fastening bolts 12 are in threaded fit.

Claims (5)

1. The utility model provides a twin-screw granulator ejection of compact bearing roller device which characterized in that: comprises a fixed shaft (1), a carrier roller body (2), a bearing (3) and a baffle plate (4),

a plurality of annular positioning grooves (5) are arranged on the circumferential surface of the carrier roller body (2), the annular positioning grooves (5) are uniformly distributed along the axial direction of the carrier roller body (2), a mounting hole (6) which penetrates along the axial direction is arranged in the carrier roller body (2), two ends of the mounting hole (6) are expanded to form a bearing assembly hole (7), two ends of the carrier roller body (2) are respectively provided with a flange plate (8),

the number of the baffle plates (4) is two, the middle parts of the baffle plates (4) are provided with through holes (9),

the number of the bearings (3) is two, the bearings are respectively assembled in bearing assembling holes (7) at two ends of the carrier roller body (2),

the baffle plates (4) are respectively assembled at the outer sides of the flange plates (8) at the two ends of the carrier roller body (2) and are fixedly connected through a plurality of fixing bolts (10) to shield the bearings (3),

the fixed shaft (1) is arranged in a mounting hole (6) of the carrier roller body (2), and two ends of the fixed shaft respectively penetrate through holes (9) of the corresponding end baffles to form clearance fit, so that the fixed shaft and the end baffles are combined to form the double-screw granulator discharging carrier roller device.

2. The double-screw granulator discharging carrier roller device according to claim 1, characterized in that: threaded holes (11) are formed in two ends of the fixing shaft (1) respectively, and fastening bolts (12) are matched in a threaded mode.

3. The double-screw granulator discharging carrier roller device according to claim 1, characterized in that: the inner side of the via hole (9) is provided with an opening ring groove (13), a clamp spring (14) is arranged in the opening ring groove (13), and the bearing (3) is axially positioned.

4. The double-screw granulator discharging carrier roller device according to claim 1, characterized in that: the cross section of the annular positioning groove (5) is semicircular, the radius of the annular positioning groove is 2mm, and the distance between every two adjacent annular positioning grooves is 12 mm.

5. The double-screw granulator discharging carrier roller device according to claim 1, characterized in that: the fixing bolts (10) are countersunk bolts, the screw rods of the fixing bolts extend outwards, and the screw caps of the fixing bolts do not exceed the inner side surface of the flange plate (8).

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