CN217438278U

CN217438278U - Degassing rotor for aluminum alloy online refining

Info

Publication number: CN217438278U
Application number: CN202221291046.XU
Authority: CN
Inventors: 周坤; 肖立; 朱福林; 曾小锋; 陈巨喜
Original assignee: Hengyang Kaixin Special Materials Technology Co ltd
Current assignee: Hengyang Kaixin Special Materials Technology Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-16
Anticipated expiration: 2032-05-26

Abstract

The utility model belongs to the technical field of metal melting, specifically relate to a be used for online concise degasification rotor of aluminum alloy, the utility model discloses a: installing a joint, a rotating rod and a turntable; the mount joint includes: a first flange; a second flange abutting against the first flange; the third flange is clamped with the first flange and the second flange; the second flange is sleeved on the rotating rod, and the third flange is embedded on the rotating rod; the rotating rod is provided with an inner through hole, the inner through hole comprises a straight section and a conical section close to the rotating disc, the lower end of the mounting joint of the degassing rotor is connected with the rotating rod through a flange buckle and a bolt, the mode is firmer than that of threaded connection, the second flange is sleeved on the rotating rod, and the second flange is equivalent to wrap the rotating rod, so that the swing amplitude of the rotating rod can be reduced, and the situation that the joint of the rotating rod and the mounting joint is broken due to the fact that the mounting joint and the rotating rod have different thermal expansion coefficients is not easy to occur; and the problem of blockage of the inner through hole of the rotating rod caused by unstable air pressure is solved.

Description

Degassing rotor for aluminum alloy online refining

Technical Field

The utility model belongs to the technical field of metal melting, specifically relate to a degassing rotor for online concise of aluminum alloy.

Background

The degassing rotor is used for degassing melts during aluminum and aluminum alloy refining, inert gases for impurity removal are input through the pore passage, and then refining gases are scattered through the rotation of the rotor to form bubbles for degassing the aluminum melts.

The ventilation rotating rod hole of the existing degassing rotor is a long straight through hole, and the rotating rod joint adopt a threaded connection structure, so that the following defects exist: inert gas for removing impurities is input through the pore channel, the ventilation quantity of the long straight through hole is not easy to control, in order to ensure good degassing effect, enough ventilation quantity is needed to maintain the stability of air pressure, the cost is higher, in order to reduce the cost, the ventilation quantity can be reduced sometimes, so that the air pressure is unstable, and the rotating rod is easy to block; in addition, the rotating rod joint is usually made of metal materials, the rotating rod is made of ceramic or graphite materials, the rotating rod is connected with the rotating rod joint through a threaded structure, and the rotating rod joint are made of different materials and have different expansion coefficients when heated, so that the rotating rod is easy to swing when the rotor rotates, and the joint is easy to break.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a degassing rotor for online refining of aluminum alloy to less inert gas use amount guarantees its atmospheric pressure, is difficult for blockking up the air vent, and is difficult for taking place the bull stick and sways, leads to the breaking of joint department.

Based on above-mentioned purpose the utility model provides a be used for online concise degasification rotor of aluminum alloy, include: installing a connector; a rotating rod connected with the mounting joint flange; the rotary disc is arranged at the end part of the rotary rod; the mount joint includes: a first flange; a second flange abutting against the first flange; the bottom of the third flange is abutted to the second flange; the second flange is sleeved on the rotating rod, and the third flange is embedded on the rotating rod.

Optionally, the rotating rod is provided with an inner through hole, and the inner through hole comprises a straight section and a conical section close to the rotating disc.

Optionally, a high-temperature-resistant gasket is padded between the end face of the rotating rod and the mounting joint.

Optionally, the rotating rod is provided with an annular groove for embedding a third flange, and the third flange is composed of two semicircular rings.

Optionally, the third flange has a cross section in two symmetrical L shapes.

Optionally, the mounting adapter is threadedly coupled to the output shaft of the rotary drive device via an internally threaded bore.

Optionally, the second flange is provided with at least one positioning hole, the rotating rod is provided with a positioning groove matched with the positioning hole, and positioning pins are arranged in the positioning hole and the positioning groove.

Optionally, the carousel comprises a plurality of circumferentially distributed U-shaped ports.

Optionally, the turntable further comprises a plurality of circumferentially distributed reinforcing ribs.

Optionally, the section of the turntable is in a circular truncated cone shape.

The beneficial effects of the utility model are that, the utility model provides a lower extreme and the bull stick of the erection joint for online concise degasification rotor of aluminum alloy pass through flange buckle and bolted connection, and more firm than threaded connection's mode, and the second flange cover is located on the bull stick, is equivalent to the second flange parcel and is lived the bull stick, can reduce the range of swaying of bull stick, is difficult for appearing because the thermal expansion coefficient of erection joint and bull stick is different, causes the condition of breaking of bull stick and erection joint junction;

the inner through hole of the rotating rod is composed of a straight section and a conical section close to the rotary table, so that the stability of outlet air pressure is guaranteed, meanwhile, the air flow can be reduced, the cost is saved, and the problem that the inner through hole of the rotating rod is blocked due to improper manual operation and unstable air pressure is solved.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a degassing rotor according to an embodiment of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is an exploded view of a degassing rotor according to an embodiment of the present invention;

fig. 4 is a bottom view of the turntable according to the embodiment of the present invention.

In the figure: 100. installing a connector; 101. a first flange; 102. a second flange; 103. a third flange; 104. a high temperature resistant gasket; 105. positioning holes; 200. a rotating rod; 201. an inner through hole; 202. an annular groove; 203. positioning a groove; 300. a turntable; 301. a U-shaped opening; 302. and (5) reinforcing ribs.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, the utility model provides a degassing rotor for aluminum alloy on-line refining, including: mounting the joint 100; a rotary rod 200 flange-coupled to the mounting joint 100; and a turntable 300 disposed at an end of the rotary rod 200; wherein, attach fitting 100 includes: a first flange 101; a second flange 102 abutting against the first flange 101; and a third flange 103 having a bottom abutting against the second flange 102; the second flange 102 is sleeved on the rotary rod 200, and the third flange 103 is embedded on the rotary rod 200, specifically, a part of the third flange 103 is embedded or inserted into the side surface of the rotary rod 200 from the transverse direction by a certain depth, generally, the embedded depth is not more than half of the wall thickness of the rotary rod 200, otherwise, the structural strength of the rotary rod 200 is affected.

Compared with the prior art, the embodiment of the utility model provides a lower extreme and the bull stick 200 that are used for online concise degasification rotor of aluminum alloy attach fitting 100 pass through flange buckle and bolted connection, more firm than threaded connection's mode, and second flange 102 cover is located on the bull stick 200, be equivalent to second flange 102 parcel live the bull stick 200, not only the tip of bull stick 200 is fixed, and a longer section cylinder section of bull stick 200 is by second flange 102 radial fixation, can reduce the range of swaying of bull stick 200, difficult appearance is because the coefficient of thermal expansion of attach fitting 100 and bull stick 200 is different, cause the circumstances of breaking of bull stick 200 and attach fitting 100 junction, and traditional threaded connection mode, can be when the rocking of bull stick 200, the easy ruptured condition of screw thread appears, make the bull stick 200 drop.

In this embodiment, the rotating rod 200 is provided with an inner through hole 201, and the inner through hole 201 includes a straight section and a tapered section close to the rotating disc 300. The inner through hole 201 of the rotating rod 200 is composed of a straight section and a conical section close to the rotating disc 300, so that the stability of outlet air pressure is guaranteed, meanwhile, the air flow can be reduced, the cost is saved, and the problem that the inner through hole 201 of the rotating rod 200 is blocked due to improper manual operation and unstable air pressure is solved.

In this embodiment, in order to make the joint between the rotating rod 200 and the mounting joint 100 have good air tightness, a high temperature resistant gasket 104 is disposed between the end surface of the rotating rod 200 and the mounting joint 100, and the high temperature resistant gasket 104 abuts against one end of the third flange 103.

In this embodiment, the rotating rod 200 is provided with an annular groove 202 for embedding the third flange 103, the third flange 103 is composed of two semicircular rings, and the third flange 103 is embedded on the rotating rod 200 by butting the two semicircular rings; in other embodiments, the third flange 103 may also be composed of more than two circular arc segments.

Specifically, when the mounting joint 100 is connected with the rotating rod 200, the second flange 102 is sleeved with the rotating rod 200, then the third flange 103 is arranged in the annular groove 202, the third flange 103 can be supported by holding the second flange 102 with hands, then the high-temperature-resistant gasket 104 is arranged on the end face of the rotating rod 200, and finally the second flange 102 and the first flange 101 are fastened through bolts to complete the assembly of the mounting joint 100 and the rotating rod 200; a gasket made of ceramic fiber may be further interposed between the first flange 101 and the second flange 102.

In this embodiment, the cross section of the third flange 103 is in two symmetrical L shapes, and one end of the L shape is used for being embedded in the annular groove 202.

In this embodiment, the contact surface of the first flange 101 and the second flange 102 is stair-shaped, that is, the contact surface of the first flange 101 and the second flange 102 is composed of at least two vertically staggered flat surfaces and a vertical surface connecting the two flat surfaces, so that the first flange 101 and the second flange 102 are radially staggered contact surfaces, when the rotor rotates at a high speed, the possibility of the first flange 101 and the second flange 102 moving in a staggered manner can be reduced, and meanwhile, the air tightness can be improved; in another embodiment, the contact surface of the first flange 101 and the second flange 102 may also be flat.

In one embodiment, an internal thread is formed in the through hole of the mounting adapter 100, and the mounting adapter 100 is screwed with the output shaft of the rotation driving device through the internal thread hole; in another embodiment, a mounting hole is formed in a side surface of the mounting joint 100, a mounting hole matched with the output shaft of the corresponding rotation driving device is formed in the output shaft of the rotation driving device, the mounting joint 100 is connected with the output shaft of the rotation driving device through a pin shaft, and the mounting hole may be a threaded hole or a polygonal hole.

In this embodiment, the second flange 102 has at least one positioning hole 105, the rotating rod 200 has a positioning groove 203 matching with the positioning hole 105, and positioning pins are disposed in the positioning hole 105 and the positioning groove 203. Specifically, locating hole 105 is the screw hole, locating pin and second flange 102 threaded connection, and the front end of locating pin inserts in the constant head tank 203 to locating pin and constant head tank 203 clearance fit, so, because the bull stick 200 coefficient of thermal expansion of pottery or graphite material is less, metal material's locating pin coefficient of thermal expansion is great, and when stirring aluminium liquid, the locating pin is heated the inflation back, makes locating pin and bull stick 200 interference fit, can prevent that the rotor from rotating the time bull stick 200 swing.

In one embodiment, the second flange 102 is provided with two positioning holes 105, and the two positioning holes 105 are located on the same side of the second flange 102 and on the same axis; in another embodiment, two positioning holes 105 are located on opposite sides of the second flange 102, and are located in the same radial direction or in a staggered arrangement; in other embodiments, the number and positions of the positioning holes 105 can be selected according to requirements.

In one embodiment, as shown in fig. 4, the turntable 300 has a rotationally symmetrical structure, the top surface of the turntable 300 is a plane, a plurality of reinforcing ribs 302 are circumferentially distributed on the bottom of the turntable 300, the turntable 300 includes a plurality of circumferentially distributed U-shaped openings 301, and the number of the U-shaped openings 301 is equal to the number of the reinforcing ribs 302. Therefore, when the degassing rotor is stirred in the aluminum liquid, the inert gas introduced into the degassing rotor can be promoted to form small bubbles, and the bubbles are uniformly dispersed in the aluminum liquid at a high speed, so that the purposes of removing oxygen and slag are achieved.

Further, the turntable 300 has a circular truncated cone-shaped cross section, and the weight of the turntable 300 can be reduced while still having sufficient strength.

In one embodiment, the rotating rod 200 is in threaded connection with the rotating disc 300, specifically, an external thread is formed on one end of the rotating rod 200 away from the installation joint 100, and a matching internal thread is formed in the through hole of the rotating disc 300; in another embodiment, the turn bar 200 is integrally formed with the turntable 300.

The rotary rod 200 and the rotary disk 300 are preferably made of silicon nitride ceramics, and can also be made of alumina ceramics or aluminum silicate ceramics.

The refractory pad 104 is a ceramic fiber pad.

In an alternative embodiment, the end of the rotating rod 200 close to the installation joint 100 is provided with an integrally formed annular protrusion, the bottom of the annular protrusion abuts against the second flange 102, and the annular protrusion functions as a substitute for the third flange 103, but this design cannot achieve the integral formation of the rotating rod 200 and the rotating disk 300.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to imply that the scope of the application is limited to these examples; within the context of the present application, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments in the present application as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present application cover all such alternatives, modifications, and variations as fall within the broad scope of the present application. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present application are intended to be included within the scope of the present application.

Claims

1. A degassing rotor for on-line refining of aluminum alloys, comprising: a mounting joint (100); a rotating rod (200) connected with the mounting joint (100) through a flange; and a turntable (300) arranged at the end part of the rotating rod (200);

the field joint (100) includes: a first flange (101); a second flange (102) abutting against the first flange (101); and a third flange (103) having a bottom portion abutting against the second flange (102); the second flange (102) is sleeved on the rotating rod (200), and the third flange (103) is embedded on the rotating rod (200).

2. The degassing rotor for on-line refining of aluminum alloy according to claim 1, wherein the rotating rod (200) is provided with an inner through hole (201), and the inner through hole (201) comprises a straight section and a conical section close to the rotating disc (300).

3. The degassing rotor for on-line refining of aluminum alloy according to claim 1, characterized in that a high temperature resistant gasket (104) is padded between the end face of the rotating rod (200) and the mounting joint (100).

4. The degassing rotor for on-line refining of aluminum alloy according to claim 1, characterized in that the rotating rod (200) is provided with an annular groove (202) for embedding a third flange (103), and the third flange (103) is composed of two semicircular rings.

5. The degassing rotor for in-line refining of aluminum alloys according to claim 4, characterized in that the cross section of the third flange (103) is in two symmetrical L-shapes.

6. The degassing rotor for on-line refining of aluminum alloy according to claim 1, wherein the mounting adapter (100) is threadedly connected with an output shaft of a rotary driving device through an internally threaded hole.

7. The degassing rotor for online refining of aluminum alloy according to claim 1, wherein the second flange (102) is provided with at least one positioning hole (105), the rotating rod (200) is provided with a positioning groove (203) matched with the positioning hole (105), and positioning pins are arranged in the positioning hole (105) and the positioning groove (203).

8. A deaeration rotor for online refining of aluminum alloys according to claim 1, wherein the turntable (300) comprises a plurality of circumferentially distributed U-shaped mouths (301).

9. The deaeration rotor for online refining of aluminum alloys according to claim 1 or 8, wherein the turntable (300) further comprises a plurality of circumferentially distributed reinforcement ribs (302).

10. The degassing rotor for on-line refining of aluminum alloy according to claim 1 or 8, wherein the cross-section of the rotary disc (300) is truncated cone-shaped.