CN215491082U

CN215491082U - Furnace pushing device of vacuum smelting furnace

Info

Publication number: CN215491082U
Application number: CN202122090491.1U
Authority: CN
Inventors: 赵超; 乔敏; 金环; 张娟; 王文红; 王建东; 孙雪梅
Original assignee: Lizhong Sitong Light Alloy Group Co ltd
Current assignee: Lizhong Sitong Light Alloy Group Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-11
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a furnace raking device of a vacuum smelting furnace, which comprises a slag raking mechanism extending into a furnace wall, wherein the slag raking mechanism is used for cleaning residual liquid in a smelting crucible, one end of the slag raking mechanism, which is far away from the furnace wall, is in driving connection with a driving mechanism, the slag raking mechanism comprises a raking rod, one end of the raking rod, which extends into the furnace wall, is sleeved with a guide sleeve, a scraper plate is fixedly connected to the end part of the raking rod, which is close to the smelting crucible, a guide pin is fixed on the raking rod, a guide groove penetrates through the side wall of the guide sleeve, two ends of the guide groove are provided with arc inclined planes, the guide sleeve is fixedly arranged on the furnace wall, and the driving mechanism controls the raking rod to do reciprocating motion.

Description

Furnace pushing device of vacuum smelting furnace

Technical Field

The utility model relates to the field of vacuum melting crucible cleaning, in particular to a vacuum melting furnace-pulling device.

Background

The casting process is easy to form the solidification slag on the crucible wall after the vacuum furnace is smelted, liquid is blocked, and the molten metal cannot be poured into a mold completely, so that the phenomenon that the smelted metal cannot be poured completely or not cast sufficiently often occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for cleaning residual liquid in a vacuum melting crucible, which is used for solving the problems in the prior art, reducing the loss of molten metal in the vacuum melting process, improving the use efficiency and prolonging the service life of the crucible.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a furnace raking device of a vacuum smelting furnace, which comprises a slag raking mechanism extending into a furnace wall, wherein the slag raking mechanism is used for cleaning residual liquid in a smelting crucible, and is characterized in that: the slag raking mechanism is characterized in that one end, far away from the furnace wall, of the slag raking mechanism is connected with a driving mechanism in a driving mode, the slag raking mechanism comprises a raking rod, a guide sleeve is sleeved at one end, extending into the furnace wall, of the raking rod, a scraping plate is fixedly connected to the end portion, close to the melting crucible, of the raking rod, a guide pin is fixed to the raking rod, a guide groove penetrates through the side wall of the guide sleeve, two ends of the guide groove are provided with arc-shaped inclined surfaces, the guide sleeve is fixedly installed on the furnace wall, and the driving mechanism controls the raking rod to do reciprocating motion.

Preferably, the guide slot includes first cell body, the both ends of first cell body communicate respectively has the second cell body, the second cell body is the arc inclined plane, the uide pin respectively with the first cell body with the cell wall sliding connection of second cell body, uide pin cross-sectional dimension is less than the width between two cell walls of first cell body, two second cell body centrosymmetric sets up.

Preferably, the scraper is perpendicular to the gin pole.

Preferably, the oven outside with be equipped with sealing mechanism between the gin pole, sealing mechanism includes the base that two symmetries set up, two the base is located respectively the inboard and the outside of oven, just the base with the oven rigid coupling, the guide pin bushing runs through the oven, just the guide pin bushing is fixed two between the base, be located the oven outside the through hole has been seted up at the base center, the through hole internal fixation has the seal cover, the seal cover is kept away from the one end of oven can be dismantled and be connected with gland, the gin pole runs through in proper order gland, seal cover stretch into to in the guide pin bushing.

Preferably, the sealing filler is filled in the gap between the gin pole, the sealing sleeve and the sealing gland.

Preferably, the sealing gland is detachably connected with the sealing sleeve through a fastening bolt.

Preferably, the driving mechanism comprises a transmission rod fixed at the end of the gin pole, an annular rack is fixed on the side wall of the transmission rod, the annular rack is meshed with a gear, the gear is connected with a motor in a driving manner, an output shaft of the motor is fixedly connected with an input shaft of a speed reducer, and an output shaft of the speed reducer is fixed at the center of the gear.

Preferably, the guide pin is of cylindrical configuration.

The utility model discloses the following technical effects: the vacuum smelting furnace raking device is simple in structure, when the device is used, the driving mechanism drives the raking rod to do reciprocating motion, the raking rod enters the smelting crucible, when the raking rod reaches the bottom of the smelting crucible, the guide pin on the raking rod rotates 90 degrees under the action of the arc-shaped inclined surface at one end of the guide groove, so that the scraper blade turns from the side surface to the lower side, the raking rod contracts from the inside of the smelting crucible, the scraper blade scrapes out metal remained in the smelting crucible, when the raking rod reaches the outside, the guide pin on the raking rod rotates 90 degrees under the action of the arc-shaped inclined surface at the other end of the guide groove, so that the scraper blade turns from the lower side to the side surface, and the phenomena of incomplete pouring or insufficient casting of the smelted metal are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a front view of a raking device of a vacuum melting furnace according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

FIG. 4 is a view showing a state of use of the raking device for the vacuum melting furnace according to the present invention;

the device comprises a smelting crucible 1, a gin pole 2, a guide pin 3, a guide sleeve 4, a base 5, a furnace wall 6, a sealing sleeve 7, sealing filler 8, a sealing gland 9, a tightening bolt 10, a motor 11, a speed reducer 12, a gear 13, a scraper 14, a first groove body 15, a second groove body 16, an annular rack 17 and a transmission rod 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to the figures 1-4, the utility model provides a vacuum smelting furnace slagging-off device, which comprises a slagging-off mechanism extending into a furnace wall 6, wherein the slagging-off mechanism is used for cleaning residual liquid in a smelting crucible 1, one end of the slagging-off mechanism far away from the furnace wall 6 is connected with a driving mechanism in a driving mode, the slagging-off mechanism comprises a slagging-off rod 2, the slagging-off rod is composed of a high-temperature-resistant metal molybdenum plate, one end, extending into the furnace wall 6, of the slagging-off rod 2 is sleeved with a guide sleeve 4, a scraper 14 is fixedly connected to the end part, close to the smelting crucible 1, of the slagging-off rod 2, a guide pin 3 is fixed on the slagging-off rod 2, a guide groove penetrates through the side wall of the guide sleeve 4, two ends of the guide groove are provided with arc inclined planes, the guide sleeve 4 is fixedly installed on the furnace wall 6, and the driving mechanism controls the slagging-off rod 2 to reciprocate.

In a further optimization scheme, the guide groove comprises a first groove body 15, two ends of the first groove body 15 are respectively communicated with a second groove body 16, the second groove body 16 is an arc-shaped inclined surface, the guide pin 3 is respectively connected with the groove walls of the first groove body 15 and the second groove body 16 in a sliding manner, the guide pin 3 slides along any side wall of the first groove body 15 and slides to the second groove body 16, the guide pin 3 drives the gin pole 2 to rotate under the action of the arc-shaped inclined surface of the second groove body 16, the cross-sectional dimension of the guide pin 3 is smaller than the width between the two groove walls of the first groove body 15, a person skilled in the art can adjust the cross-sectional dimension of the guide pin 3 according to actual conditions to ensure that the guide pin 3 can drive the gin pole 2 to rotate when sliding on the arc-shaped inclined surface of the second groove body 16, the two second groove bodies 16 are arranged in a central symmetry manner, and can ensure that when the scraper 14 reaches the bottom of the smelting crucible 1, the guide pin 3 is under the action of the arc-shaped inclined surface of the second groove body 16 at one end, when the scraper 14 is rotated by 90 degrees to turn from the side surface to the lower surface, and the derrick mast 2 is retracted from the inside of the melting crucible 1 to reach the outside of the melting crucible 1, the guide pin 3 is rotated by 90 degrees under the action of the arc-shaped inclined surface of the second groove body 16 at the other end, so that the scraper 14 turns from the lower surface to the side surface.

According to the further optimized scheme, the scraper 14 is perpendicular to the derrick mast 2, so that the scraper 14 can scrape out residual liquid in the smelting crucible 1.

Further optimization scheme, be equipped with sealing mechanism between the oven 6 outside and the gin pole 2, sealing mechanism includes the base 5 that two symmetries set up, two bases 5 are located the inboard and the outside of oven 6 respectively, and base 5 and oven 6 rigid coupling, guide pin bushing 4 runs through oven 6, and guide pin bushing 4 fixes between two bases 5, be used for fixed guide pin bushing 4, make gin pole 2 fixed direction when reciprocating motion, the through hole has been seted up at the base 5 center that is located the oven 6 outside, be fixed with seal cover 7 in the through hole, seal cover 7 keeps away from the one end of oven 6 and can dismantle and be connected with seal cover 9, gin pole 2 runs through seal cover 9 in proper order, seal cover 7 and stretch into to guide pin bushing 4, seal cover 7 fixes guide pin bushing 4 together with base 5 outside oven 6.

According to the further optimized scheme, the sealing filler 8 is filled in the gap among the gin pole 2, the sealing sleeve 7 and the sealing gland 9, the sealing gland 9 is tightly pressed by the tightening bolt 10 on the outer side to prevent gas outside the furnace from entering the furnace body, and the vacuum degree of vacuum melting is guaranteed.

Further optimizing scheme, seal gland 9 can dismantle with seal cover 7 through holding bolt 10 and be connected, conveniently tears the slagging-off mechanism open, maintains slagging-off mechanism.

According to the further optimized scheme, the driving mechanism comprises a transmission rod 18 fixed at the end part of the derrick mast 2, an annular rack 17 is fixed on the side wall of the transmission rod 18 and can ensure that the derrick mast 2 can rotate and reciprocate, the annular rack 17 is meshed with a gear 13, the gear 13 is in driving connection with a motor 11, the annular rack 17 can ensure that the derrick mast 2 can effectively rotate, the motor 11 drives the gear 13 to drive the derrick mast 2 to do reciprocating and rotating motions through the annular rack 17 meshed with the gear 13, so that residual liquid in the smelting crucible 1 can be scraped out, an output shaft of the motor 11 is fixedly connected with an input shaft of a speed reducer 12, an output shaft of the speed reducer 12 is fixed at the central position of the gear 13, the gear 13 drives the derrick mast 2 to move, and the derrick mast 2 does reciprocating motions under the driving of the motor 11.

Further optimize the scheme, uide pin 3 is cylindrical structure, and the cross sectional shape of uide pin 3 is circular, guarantees that uide pin 3 effectively slides in the arc inclined plane of first cell body 15 and second cell body 16.

According to the further optimization scheme, the limiting ring is arranged on the transmission rod 18 and detachably connected to the transmission rod 18, the limiting ring is connected to the corresponding distance position on the transmission rod 18 through testing the distance that the gin pole 2 needs to be contracted, and meanwhile the distance that the gin pole 2 does reciprocating motion is controlled.

In a further optimized scheme, the scraper 14 at the front end of the derrick mast 2 is a metal molybdenum plate, the melting point of the metal molybdenum is 2623 ℃, the melting temperature is far higher than 1700 ℃, and the use requirement is met.

The working principle is as follows: due to the ash or condensed metal sticking to the side wall of the melting crucible 1, part of the metal liquid is prevented from being retained in the melting crucible 1 and cannot be poured into the casting mold completely. At the moment, the motor 11 is started, the output shaft of the motor 11 drives the input shaft of the speed reducer 12, the output shaft of the speed reducer 12 drives the gear 13 to rotate, the gear 13 pushes the transmission rod 18 to drive the raking rod 2 to move towards the melting crucible 1 through the meshed annular rack 17, the guide pin 3 on the raking rod 2 slides in the first groove body 15 of the guide groove in the guide sleeve 4, when the raking rod reaches the bottom, the guide pin 3 on the raking rod 2 deflects for 90 degrees under the action of the arc-shaped inclined surface of the second groove body 16 at one end of the guide groove in the guide sleeve 4, and the scraper 14 on the raking rod 2 faces downwards. The motor 11 changes the rotation direction to drive the derrick mast 2 to move outwards, and the scraper 14 scrapes out the residual liquid on the side wall of the smelting crucible 1 and flows into the casting mold. When the derrick mast 2 contracts to the root, the guide pin 3 pushes the derrick mast 2 to rotate back by 90 degrees under the action of the second groove body 16 arc-shaped inclined plane at the other end of the guide groove in the guide sleeve 4 again, so that the scraper 14 faces to the side surface, and the whole process is completed.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a vacuum melting furnace takes off stove device, includes the slagging-off mechanism that stretches into in oven (6), slagging-off mechanism is used for clearing up the residual liquid in smelting crucible (1), its characterized in that: the slag raking mechanism is far away from one end of the furnace wall (6) and is connected with a driving mechanism in a driving mode, the slag raking mechanism comprises a raking rod (2), the raking rod (2) stretches into one end in the furnace wall (6) and is sleeved with a guide sleeve (4), a scraper (14) is fixedly connected to the end portion, close to the smelting crucible (1), of the raking rod (2), a guide pin (3) is fixed to the raking rod (2), a guide groove is formed in the side wall of the guide sleeve (4) in a penetrating mode, arc-shaped inclined planes are arranged at two ends of the guide groove, the guide sleeve (4) is fixedly installed on the furnace wall (6), and the driving mechanism controls the raking rod (2) to do reciprocating motion.

2. The vacuum melting furnace raking device of claim 1, wherein: the guide slot includes first cell body (15), the both ends of first cell body (15) communicate respectively has second cell body (16), second cell body (16) are the arc inclined plane, uide pin (3) respectively with first cell body (15) with the cell wall sliding connection of second cell body (16), uide pin (3) cross sectional dimension is less than width between two cell walls of first cell body (15), two second cell body (16) central symmetry sets up.

3. The vacuum melting furnace raking device of claim 1, wherein: the scraper (14) is perpendicular to the derrick mast (2).

4. The vacuum melting furnace raking device of claim 1, wherein: oven (6) outside with be equipped with sealing mechanism between gin-pole (2), sealing mechanism includes base (5) that two symmetries set up, two base (5) are located respectively the inboard and the outside of oven (6), just base (5) with oven (6) rigid coupling, guide pin bushing (4) run through oven (6), just guide pin bushing (4) are fixed two between base (5), be located the oven (6) outside base (5) center has seted up the through hole, the through hole internal fixation has seal cover (7), seal cover (7) are kept away from the one end of oven (6) can be dismantled and be connected with gland (9), gin-pole (2) run through in proper order gland (9), seal cover (7) and stretch into in guide pin bushing (4).

5. The vacuum melting furnace raking device of claim 4, wherein: and sealing filler (8) is filled in gaps among the gin pole (2), the sealing sleeve (7) and the sealing gland (9).

6. The vacuum melting furnace raking device of claim 4, wherein: the sealing gland (9) is detachably connected with the sealing sleeve (7) through a fastening bolt (10).

7. The vacuum melting furnace raking device of claim 1, wherein: the driving mechanism comprises a transmission rod (18) fixed at the end part of the derrick mast (2), an annular rack (17) is fixed on the side wall of the transmission rod (18), the annular rack (17) is meshed with a gear (13), the gear (13) is in driving connection with a motor (11), an output shaft of the motor (11) is fixedly connected with an input shaft of a speed reducer (12), and an output shaft of the speed reducer (12) is fixed at the central position of the gear (13).

8. The vacuum melting furnace raking device of claim 1, wherein: the guide pin (3) is of a cylindrical structure.