CN218625413U - Seal structure for wear-resistant ring of stirring shaft of internal mixer - Google Patents

Abstract

The utility model discloses a seal structure of a wear ring of a mixer stirring shaft, which comprises a mixer frame and a stirring shaft, wherein the mixer frame is provided with a mixing barrel, the stirring shaft runs through the mixing barrel and is arranged relative to the rotation of the mixing barrel, the stirring shaft is provided with a ring edge with a groove, a fixing ring, an outer grinding ring and an inner grinding ring are sleeved, a mounting ring is arranged between the outer grinding ring and the fixing ring and the stirring shaft, one end of the mounting ring is abutted against the inner grinding ring, the outer grinding ring is provided with an oil groove and an oil filling hole running through the fixing ring and the outer grinding ring; the utility model discloses a seal structure not only can let the better cooperation of (mixing) shaft and interior grinding ring, and can let the installation of (mixing) shaft and mixing roll more stable, in addition, the structure setting of (mixing) shaft ring limit, interior grinding ring, abrasive disc and outer grinding ring can show the material granule that reduces direct entering clearance, and reducing wear, cooperation fluid form the oil film at main relative friction surface and lubricate, can prevent wearing and tearing can also prevent to leak to improve sealing performance and improve device life.

Description

Seal structure for wear-resistant ring of stirring shaft of internal mixer

Technical Field

The utility model relates to an internal mixer technical field, concretely relates to internal mixer (mixing) shaft wear ring seal structure.

Background

The internal mixer is a high-strength intermittent mixing device widely used in the rubber industry, is mainly used for mixing rubber or plastics with compounding ingredients, and can also be used for plasticating the rubber or plastics. The device mainly comprises an internal mixing chamber, a rotor sealing device, a feeding and pressing device, a discharging device, a transmission device, a machine base and the like. When the internal mixer works, the two rotors rotate relatively to extrude and shear the materials (particles) from the feeding and pressing device, so that the temperature of the materials is increased, the viscosity is reduced, the wettability of the materials on the surface of the compounding agent is increased, and the materials are in full contact with the surface of the compounding agent. Meanwhile, the convex edges on the rotor enable the materials to move along the axial direction of the rotor, so that the stirring and mixing effects are achieved, and the compounding agents are uniformly mixed in the materials.

When the internal mixer is used for mixing, because the internal mixer is closed, the material loss is much less than that of an open mill, and the pollution to the environment is greatly reduced. However, since the internal mixer is under high pressure and the rotor and the rotating shaft are in motion, the material still leaks out of the internal mixer from the gap between the static sealing ring and the end face of the rotor, the gap between the rotating shaft and the dynamic sealing ring, and the gap between the dynamic sealing ring and the static sealing ring. So, not only cause the raw materials extravagant, also further cause the machine pressure release to reduce machining efficiency, consequently, to the seal structure of internal mixer (mixing) shaft wear-resisting ring, also represented to a certain extent whether the internal mixer can accomplish mixing better sooner.

SUMMERY OF THE UTILITY MODEL

In view of the prior art, an object of the utility model is to provide a banbury mixer (mixing) shaft wear ring seal structure has multiple sealed wear ring structure, through the interact between a plurality of rings, realizes guaranteeing mixing barrel airtight to the seal in the gap between (mixing) shaft and the mixing barrel, guarantees banburying's quality and efficiency.

In order to realize the above purpose, the utility model discloses a technical scheme be: internal mixer (mixing) shaft wear ring seal structure, including internal mixer frame and (mixing) shaft, be provided with mixing barrel in the internal mixer frame, the (mixing) shaft runs through mixing barrel and relative its rotation setting, mixing barrel is provided with sealing mechanism with the (mixing) shaft junction, sealing mechanism includes the notched ring limit of (mixing) shaft upper band, still be provided with solid fixed ring, outer mill ring and one side on the (mixing) shaft and lie in the interior mill ring of recess, outer mill ring with still be provided with the collar between solid fixed ring and the (mixing) shaft, on the mill ring including collar one end butt, still be provided with the oil groove on the outer mill ring and run through solid fixed ring and the oil filler point of outer mill ring.

As a further arrangement of the above scheme, the outer grinding ring is of a circular ring structure, the oil groove is formed in the surface of the outer grinding ring in a polygonal rhombus shape, the oil hole is communicated with the oil groove and the oil injection device, and the end face of the outer grinding ring with the oil groove is attached to the inner grinding ring.

As a further arrangement of the scheme, the inner wall of the mixing barrel is also provided with a grinding plate, and the grinding plate, the outer grinding ring, the stirring shaft and the mounting ring are matched to clamp the inner grinding ring.

As a further arrangement of the scheme, the grinding plate, the outer grinding ring and the inner grinding ring are made of titanium alloy materials.

According to the scheme, the grinding plates are annular, the edges of the grinding plates are provided with planes, the inner wall of the mixing barrel is provided with flat grooves matched with the flat grooves, and the grinding plates are circumferentially fixed relative to the inner wall of the mixing barrel.

As a further arrangement of the scheme, the outer grinding ring and the fixing ring are fixedly arranged relative to the mixing barrel, and the inner grinding ring is sleeved on the stirring shaft and is movably arranged in the circumferential direction of the outer grinding ring.

Has the advantages that: the utility model discloses a seal structure, cooperation setting through a plurality of ring structure that set up, play the function of strengthening the inside and outside sealed effect, set up oiling and rhombus oil groove on outer mill ring, can be so that the better lubricated effect of playing of fluid, the ring limit design of this patent, not only can let the better cooperation of (mixing) shaft and interior mill ring, and can let the installation of (mixing) shaft and mixing barrel more stable, furthermore, (mixing) shaft ring limit, interior mill ring, the structure setting of abrasive disc and outer mill ring, can show the direct material granule that gets into the clearance that reduces, reduce wear and tear, cooperation fluid forms the oil film at main relative friction surface and lubricates, can prevent wearing and tearing and also can prevent to leak, thereby improve sealing performance and improve device life.

Drawings

Fig. 1 is a schematic structural diagram of the internal mixer of the present invention.

Fig. 2 is a partially enlarged view of the sealing mechanism of the stirring shaft in fig. 1 according to the present invention.

Fig. 3 is a part display diagram of the stirring shaft and the sealing structure of the present invention.

Fig. 4 is a schematic structural view of the fixing ring of the present invention.

Fig. 5 is a schematic view of the structure of the outer grinding ring of the present invention.

Reference numerals: 1. a frame of an internal mixer; 2. a mixing barrel; 4. a stirring shaft; 41. an inner grinding ring; 42. grinding; 43. a mounting ring; 44. an outer grinding ring; 45. a fixing ring; 46. an oil filler hole; 47. a groove; 48. encircling; 50. an oil groove.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.

Referring to fig. 1-5 shows mixer (mixing) shaft wear ring seal structure, including mixer frame 1 and (mixing) shaft 4, be provided with mixing barrel 2 on the mixer frame 1, mixing shaft 4 runs through mixing barrel 2 and rotates the setting relatively it, mixing barrel 2 is provided with sealing mechanism with the junction of (mixing) shaft 4, sealing mechanism includes the ring limit 48 that has recess 47 on the (mixing) shaft 4, still be provided with solid fixed ring 45 on the (mixing) shaft 4, outer grinding ring 44 and one side lie in the interior grinding ring 41 of recess 47, outer grinding ring 44 with still be provided with between solid fixed ring 45 and the (mixing) shaft 4 collar 43, on the interior grinding ring 41 of collar 43 one end butt, still be provided with oil groove 50 on the outer grinding ring 44 and run through solid fixed ring 45 and the oil filler point 46 of outer grinding ring 44.

Compared with the prior art, the utility model discloses an internal mixer (mixing) shaft 4 is at its during operation, the relative rotation of inside and outside mill ring formation, and with the preparation of titanium alloy material, cast iron material current relatively more has the hardness strong, the roughness is good, long service life, maintenance cost is saved, and based on foretell structure, at its during operation, the fuel feeding that lasts in the oil filler point 46, and with its even provision on relative friction surface, not only promoted the friction lubrication degree and reduced friction wear, and when material passes through between the relative pivoted wear ring in a small amount of section of thick bamboo, this material of fluid mixing, form the glue oil form material, the filling gap, shape promotes the interior operational environment of a section of thick bamboo of leakproofness keeping, the productivity effect is improved.

As a further configuration of the above scheme, the outer grinding ring 44 is of a circular structure, the oil groove 50 is of a polygonal rhombus and is located on the surface of the outer grinding ring 44, the oil hole 46 communicates with the oil groove 50 and the oil injection device, and the end surface of the outer grinding ring 44 with the oil groove 50 is attached to the inner grinding ring 41, and compared with a general circular oil groove in the prior art, the oil groove 50 of the polygonal rhombus structure can allow more relatively movable contact surfaces of the oil groove 50 relative to the inner grinding ring 41, allow more oil to contact the surface of the inner grinding ring 41, and provide better lubrication.

As a further arrangement of the proposal, the inner wall of the mixing barrel 2 is also provided with grinding plates 42, and the grinding plates 42, the outer grinding ring 44, the stirring shaft 4 and the mounting ring 43 are matched and clamped with the inner grinding ring 41.

As a further arrangement of the scheme, the grinding disc 42, the outer grinding ring 44 and the inner grinding ring 41 are made of titanium alloy materials, and compared with the prior art, the titanium alloy materials are generally formed by turning and grinding cast iron, are poor in wear resistance and difficult to replace, are changed into titanium alloy materials, and are high in hardness, good in flatness, long in service life, capable of saving maintenance cost and capable of improving production efficiency.

As a further arrangement of the scheme, the grinding plates 42 are annular, the edges of the grinding plates are provided with planes, the inner wall of the mixing barrel 2 is provided with flat grooves matched with the flat grooves, and the grinding plates 42 are fixed relative to the circumferential direction of the inner wall of the mixing barrel 2.

As a further configuration of the above scheme, the outer grinding ring 44 and the fixing ring 45 are fixedly arranged relative to the mixing drum 2, the inner grinding ring 41 is sleeved on the stirring shaft 4 and is circumferentially movably arranged relative to the outer grinding ring 44, and the inner grinding ring 41 is circumferentially movably arranged relative to the outer grinding ring 44, so that oil distributed in the polygonal rhombic oil groove 50 can be injected from the oil injection hole 46 based on the rotation of the inner and outer grinding rings, and the inner grinding ring 41 is more uniformly contacted with the oil, thereby reducing the relative wear therebetween.

The utility model discloses a sealing structure, cooperation through a plurality of annular structure rings sets up, play the function of strengthening the inside and outside sealed effect, set up oiling and rhombus oil groove on outer mill ring, can make the better lubricated effect of playing of fluid, the design of the ring limit of this patent, not only can let the better cooperation of (mixing) shaft and interior mill ring, and can let the installation of (mixing) shaft and mixing barrel more stable, furthermore, (mixing) shaft ring limit, interior mill ring, the structure setting of abrasive disc and outer mill ring, can show the direct material granule that gets into the clearance that reduces, reduce wearing and tearing, cooperation fluid forms the oil film at main relative friction surface and lubricates, can prevent wearing and tearing and also can prevent to leak, thereby improve sealing performance and improve device life, in addition just to the material change, change the cast iron into titanium alloy, performance titanium alloy's wear-resisting, characteristics such as hardness, promote life on this basis.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (6)

1. Internal mixer (mixing) shaft wear ring seal structure, including internal mixer frame (1) and (mixing) shaft (4), be provided with mixing barrel (2) on internal mixer frame (1), mixing shaft (4) run through mixing barrel (2) and relative its rotation setting, its characterized in that: mixing barrel (2) and (mixing) shaft (4) junction are provided with sealing mechanism, sealing mechanism includes that (mixing) shaft (4) go up ring limit (48) that have recess (47), still be provided with solid fixed ring (45) on (mixing) shaft (4), outer grinding ring (44) and one side are located interior grinding ring (41) of recess (47), outer grinding ring (44) with still be provided with between solid fixed ring (45) and (mixing) shaft (4) collar (43), on grinding ring (41) including collar (43) one end butt, still be provided with oil groove (50) and run through oil filler point (46) of solid fixed ring (45) and outer grinding ring (44) on outer grinding ring (44).

2. The seal structure of the wear-resistant ring of the stirring shaft of the internal mixer according to claim 1, which is characterized in that: outer grinding ring (44) are the ring structure, oil groove (50) are multilateral rhombus and lie in outer grinding ring (44) surface and set up, oil filler point (46) UNICOM oil groove (50) and oiling equipment, just outer grinding ring (44) have the terminal surface laminating of oil groove (50) on interior grinding ring (41).

3. The seal structure of the wear-resistant ring of the stirring shaft of the internal mixer according to claim 1, which is characterized in that: the inner wall of the mixing barrel (2) is also provided with a grinding plate (42), and the grinding plate (42), the outer grinding ring (44), the stirring shaft (4) and the mounting ring (43) are matched to clamp the inner grinding ring (41).

4. An internal mixer stirring shaft wear ring sealing structure according to claim 3, characterized in that: the grinding plate (42), the outer grinding ring (44) and the inner grinding ring (41) are made of titanium alloy materials.

5. An internal mixer stirring shaft wear ring sealing structure according to claim 3, characterized in that: the grinding plates (42) are annular, the edges of the grinding plates are provided with planes, the inner wall of the mixing barrel (2) is provided with flat grooves matched with the flat grooves, and the grinding plates (42) are circumferentially fixed relative to the inner wall of the mixing barrel (2).

6. The seal structure of the wear-resistant ring of the stirring shaft of the internal mixer according to claim 1, which is characterized in that: the outer grinding ring (44) and the fixing ring (45) are fixedly arranged relative to the mixing barrel (2), and the inner grinding ring (41) is sleeved on the stirring shaft (4) and is movably arranged relative to the outer grinding ring (44) in the circumferential direction.

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