CN211250939U

CN211250939U - Rotor structure of internal mixer

Info

Publication number: CN211250939U
Application number: CN201921901067.7U
Authority: CN
Inventors: 黄晓燕; 黄振芳
Original assignee: Zhangjiagang Lanhang Machinery Co Ltd
Current assignee: Zhangjiagang Lanhang Machinery Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-08-14
Anticipated expiration: 2029-11-06

Abstract

The utility model provides a rotor structure of banbury mixer, it makes the intensity of rotor high, and can not produce the risk of leaking, has ensured the long-term stable work of rotor. It includes the pivot body, the axial middle part region of pivot body is big footpath section, the axial both ends of pivot body are power input end, cooling water circulation end respectively, a pair of blade that spreads in opposite directions has been arranged to the axial direction line's of big footpath section both sides, specifically is first blade, second blade, the base of first blade, second blade is welded connection respectively the corresponding outer peripheral face of big footpath section, the terminal surface radial center of cooling water circulation end is provided with the indent centre bore, the indent centre bore is from outside to inside extends to the axial position of the welding position of the second blade of distal end, the length range of indent centre bore covers the base welding position of first blade, second blade, the interior downthehole cooling water that flows out simultaneously of high pressure cooling water that pours into of indent centre bore.

Description

Rotor structure of internal mixer

Technical Field

The utility model relates to a technical field of banbury mixer structure specifically is banbury mixer's rotor structure.

Background

The internal mixer is a short name of a closed rubber mixing mill. The internal mixer is a machine which is equipped with a pair of rotors with specific shapes and can be relatively rotated, and can be used for plasticating and mixing polymer material in a clearance mode under the closed state of adjustable temperature and pressure, and is mainly formed from internal mixing chamber, rotor sealing device, feeding and pressing device, discharging device, driving device and machine base.

The rotor of the internal mixer is divided into a shearing rotor and a meshing rotor, the existing shearing rotor is driven by a driving structure to drive a high-speed rotor, the high-speed rotor is extruded and collided with materials, a large amount of heat is generated on the surface of the rotor, and then heat exchange is needed to cool the rotor, and continuous work is ensured; and because the radial connecting hole is communicated with the welding seam on the welding surface of the blade, when the rotating shaft rotates at a high speed, if the rotating shaft is not welded well, the welding seam is easy to leak water under the long-term high-speed rotating state of the rotating shaft, and then the whole rotor is scrapped.

Disclosure of Invention

To the above problem, the utility model provides a rotor structure of banbury mixer, it makes the intensity of rotor high, and can not produce the risk of leaking, has ensured the long-term stable work of rotor.

Rotor structure of banbury mixer, its characterized in that: the rotary shaft comprises a rotary shaft body, wherein the axial middle area of the rotary shaft body is a large-diameter section, the axial two ends of the rotary shaft body are respectively a power input end and a cooling water circulation end, a pair of oppositely distributed blades, specifically a first blade and a second blade, are arranged on two sides of the axial center line of the large-diameter section, the bases of the first blade and the second blade are respectively welded and connected with the corresponding peripheral surfaces of the large-diameter sections, the radial center of the end surface of the cooling water circulation end is provided with an inner concave central hole which extends from outside to inside to the axial position of the welding position of the second blade at the far end, the length range of the concave central hole covers the welding positions of the bases of the first blade and the second blade, and high-pressure cooling water is injected into the concave central hole and flows out simultaneously, the orifice position of the concave central hole is a sealing port, and the inner diameter of the sealing port is larger than the inner diameter of the rest part of the concave central hole.

It is further characterized in that;

the shearing surfaces of the first blade and the second blade, which are used for pressure contact with materials, are welded with wear-resistant materials in a build-up mode, so that the service lives of the first blade and the second blade are ensured;

the outer ring surface of the power input end is provided with an inwards concave key groove which is convenient for connecting a power input shaft;

the center position of the corresponding end surface of the power input end is provided with an inwards concave threaded hoisting hole, so that the whole device is convenient to transport, and the rotating shaft body cannot be damaged;

a positioning spigot bulge is arranged at the position, corresponding to the welding position of the bases of the first blade and the second pressing sheet, of the large-diameter section of the rotating shaft body, so that quick and reliable welding is ensured;

the axial length direction of the large-diameter section which is transited to the power input end and the cooling water circulating end is respectively provided with a positioning step, so that the installation of the bearing and the packaging structure is facilitated.

After adopting above-mentioned technical scheme, the entry joint of cooling water, the export connects and inserts sealed port through flange, the cooling water cavity that the indent central hole was formed is injected into to high-pressure cooling water, the cooling shaft body, because the outer rampart of first blade, the base welding pivot body of second blade, the heat transfer makes cold volume collect on the blade from the ring week, take away the heat through the heat transfer between the metal, and then only need an indent central hole, and the length range of indent central hole covers first blade, the base welding position of second blade can, because radially need not the trompil, it makes the intensity of rotor high, and can not produce the risk of leaking, the long-term steady operation of rotor has been ensured.

Drawings

Fig. 1 is a schematic front view structure diagram of the present invention;

FIG. 2 is a schematic view of the present invention in a partial cross-sectional structure;

the names corresponding to the sequence numbers in the figure are as follows:

the rotary shaft comprises a rotary shaft body 1, a large-diameter section 101, a power input end 102, a cooling water circulation end 103, a first blade 2, a second blade 3, an inwards concave central hole 4, a sealing port 41, a wear-resistant material 5, an inwards concave key groove 6, an inwards concave threaded hoisting hole 7, a positioning spigot protrusion 8, a positioning step 9 and a base 10.

Detailed Description

Rotor structure of internal mixer, see fig. 1: the rotating shaft comprises a rotating shaft body 1, wherein the axial middle area of the rotating shaft body 1 is a large-diameter section 101, the axial two ends of the rotating shaft body 1 are respectively a power input end 102 and a cooling water circulation end 103, a pair of oppositely-scattered blades, specifically a first blade 2, a second blade 3 and a first blade 2, are arranged on the two sides of the axial center line of the large-diameter section 101, the base 10 of the second blade 3 is respectively welded on the corresponding peripheral surface of the large-diameter section 101, the radial center of the end surface of the cooling water circulation end 103 is provided with an inner concave center hole 4, the inner concave center hole 4 extends from outside to inside to the axial position of the welding position of the second blade 3 at the far end, the length range of the inner concave center hole 4 covers the welding positions of the bases of the first blade 2 and the second blade 3, high-pressure cooling water is injected into the inner concave center hole 4 and flows out of the cooling water at the same time, the hole opening position of the inner concave center hole 4 is a sealing port 41, and the inner diameter of the sealing port 41 is larger than the inner diameter of the rest part.

The shearing surfaces of the first blade 2 and the second blade 3, which are used for pressure contact with materials, are overlaid with wear-resistant materials 5, so that the service lives of the first blade 2 and the second blade 3 are ensured;

the outer ring surface of the power input end 102 is provided with an inner concave key groove 6 for connecting a power input shaft conveniently;

the center position of the corresponding end surface of the power input end 102 is provided with the concave thread hoisting hole 7, so that the whole device is convenient to transport, and the rotating shaft body cannot be damaged;

a positioning spigot bulge 8 is arranged at the welding position of the large-diameter section 101 of the rotating shaft body 1, which corresponds to the base 10 of the first blade 2 and the second pressing sheet 3, so that the welding is fast and reliable;

the axial length directions of the large-diameter section 101, which are transited to the power input end 102 and the cooling water circulation end 103, are respectively provided with a positioning step 9, so that the installation of the bearing and the packaging structure is facilitated.

The working principle is as follows: the inlet joint of cooling water, the outlet joint passes through flange access sealing port, the cooling water cavity that the indent central hole was formed is injected into to high-pressure cooling water, the cooling pivot body, because first blade, the outer rampart of base welding pivot body of second blade, the heat transfer makes cold volume collect on the blade from the ring week, take away the heat through the heat transfer between the metal, and then only need an indent central hole, and the length range of indent central hole covers first blade, the base welding position of second blade can, because radially need not the trompil, it makes the intensity of rotor high, and can not produce the risk of leaking, the long-term stable work of rotor has been ensured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Rotor structure of banbury mixer, its characterized in that: the rotary shaft comprises a rotary shaft body, wherein the axial middle area of the rotary shaft body is a large-diameter section, the axial two ends of the rotary shaft body are respectively a power input end and a cooling water circulation end, a pair of oppositely distributed blades, specifically a first blade and a second blade, are arranged on two sides of the axial center line of the large-diameter section, the bases of the first blade and the second blade are respectively welded and connected with the corresponding peripheral surfaces of the large-diameter sections, the radial center of the end surface of the cooling water circulation end is provided with an inner concave central hole which extends from outside to inside to the axial position of the welding position of the second blade at the far end, the length range of the concave central hole covers the welding positions of the bases of the first blade and the second blade, and high-pressure cooling water is injected into the concave central hole and flows out simultaneously, the orifice position of the concave central hole is a sealing port, and the inner diameter of the sealing port is larger than the inner diameter of the rest part of the concave central hole.

2. The rotor structure of an internal mixer according to claim 1, characterized in that: and the shearing surfaces of the first blade and the second blade, which are used for pressure contact with the material, are welded with wear-resistant materials.

3. The rotor structure of an internal mixer according to claim 1, characterized in that: and an inner concave key groove is formed in the outer ring surface of the power input end.

4. The rotor structure of an internal mixer according to claim 1, characterized in that: and the central position of the corresponding end surface of the power input end is provided with an inwards concave threaded hoisting hole.

5. The rotor structure of an internal mixer according to claim 1, characterized in that: and the large-diameter section of the rotating shaft body is provided with a positioning spigot bulge corresponding to the welding position of the bases of the first blade and the second pressing sheet.

6. The rotor structure of an internal mixer according to claim 1, characterized in that: and the axial length directions of the large-diameter section, which is transited to the power input end and the cooling water circulating end, are respectively provided with a positioning step.