CN220624826U - Revolving furnace using slewing bearing structure - Google Patents

Abstract

The utility model discloses a converter using a slewing bearing structure, which comprises a converter body, a converter body tilting frame, a rotation driving mechanism for driving the rotation, and further comprises a converter body slewing mechanism, wherein the converter body slewing mechanism comprises a slewing bearing and a slewing bearing mounting seat, the slewing bearing is arranged on the slewing bearing mounting seat, the converter tail of the converter body is connected with a rotating ring of the slewing bearing, the rotation driving mechanism is connected with the rotating ring through a transmission mechanism for transmitting the driving force of the rotation driving mechanism to the rotating ring, and the slewing bearing mounting seat is connected with the converter body tilting frame. The revolving support can bear bidirectional axial load, so that the revolving support and the furnace body tilting frame are skillfully combined into a whole through the revolving support and the revolving support mounting seat, the revolving support has a simple structure, and when the furnace body tilts, the revolving support changes from bearing furnace pressure to bearing furnace tensile force along with the change of the furnace gravity center position.

Description

Revolving furnace using slewing bearing structure

Technical Field

The utility model belongs to the field of smelting equipment, and particularly relates to a converter.

Background

In the smelting process, the converter needs to perform a series of process operations, such as charging, melting, smelting, refining, slag skimming, pouring and the like. The converter not only needs to continuously rotate 360 degrees around the self axis, but also can turn over the furnace body along the horizontal turning axis in different smelting stages to meet the requirements of various metallurgical operations. When the furnace body is turned over to the position that the furnace tail is higher than the furnace mouth angle, the furnace body needs a supporting structure to provide supporting force for the furnace body, so that the furnace body is prevented from being separated from the furnace frame.

The driving and supporting structures of the traditional converter are respectively designed by independent structures, and the supporting structure and the driving structure are required to independently consider tolerance fit and fit dimensional tolerance between the two structures. Because the furnace body size is big, especially the cooperation dimensional tolerance between two structures can lead to the fact the processing degree of difficulty to be ultra-high, the processing equipment who matches with it is difficult to find in the market. Therefore, the traditional furnace body supporting structure often adopts an elastic supporting structure, the structural design further worsens the connection accuracy of the driving structure, and leads to the advanced failure of the capacity difference parts such as the coupling and the stress bearing in the driving structure, the stop of production and the loss.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings in the background art, and provides a revolving furnace with a slewing bearing structure, which has low processing difficulty and long service life. In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the converter comprises a converter body, a converter body tilting frame, a rotation driving mechanism for driving the converter body to rotate, and further comprises a converter body slewing mechanism, wherein the converter body slewing mechanism comprises a slewing bearing and a slewing bearing mounting seat, the slewing bearing is arranged on the slewing bearing mounting seat, a converter tail of the converter body is connected with a rotating ring of the slewing bearing, and the rotation driving mechanism is connected with the rotating ring through a transmission mechanism for transmitting driving force of the rotation driving mechanism to the rotating ring, and the slewing bearing mounting seat is connected with the converter body tilting frame.

In the converter using the slewing bearing structure, preferably, the rotating ring of the slewing bearing is an inner ring, an opening is formed in the center of the slewing bearing mounting seat, and the slewing bearing is fixedly arranged at the central opening of the slewing bearing mounting seat through an outer ring of the slewing bearing.

In the converter using the slewing bearing structure, preferably, the rotating ring of the slewing bearing is an outer ring, and the slewing bearing is fixedly arranged on the slewing bearing mounting seat through the inner ring.

In the converter using the slewing bearing structure, preferably, the rotating ring of the slewing bearing is a rotating ring gear, the transmission mechanism is a gear, and the rotation driving mechanism is meshed with the rotating ring gear of the slewing bearing through the gear.

According to the utility model, different slewing bearings can be adopted according to different requirements, the autorotation driving mechanism is connected with the rotating ring of the slewing bearing, and the furnace body is connected with the rotating ring at the same time. In a more preferable scheme, the automatic driving mechanism is meshed with the rotary gear ring of the slewing bearing through a gear, and the structure is simpler. However, if the rotation driving mechanism transmits the driving force to the slewing bearing regardless of the complexity of the structure, the cost, etc., a sprocket, a pulley, etc. may be used instead of the gear.

In the converter using the slewing bearing structure, preferably, self-centering adjusting trunnion seats are arranged on two sides of the slewing bearing mounting seat, a self-centering adjusting trunnion base is arranged on the furnace body tilting frame, and the slewing bearing mounting seat is connected with the self-centering adjusting trunnion base of the furnace body tilting frame through the self-centering adjusting trunnion.

In the converter using the slewing bearing structure, it is preferable that the self-centering adjustment trunnion is rotatably provided in the self-centering adjustment trunnion base so as to be movable in an axial direction of the self-centering adjustment trunnion. The axial movement is to make up for the horizontal position installation deviation of the furnace body, the rotation is to make up for the vertical position installation deviation of the furnace body, and after the external diameters of the furnace body and the pulling ring become large due to thermal expansion, the overturning moment generated on the slewing bearing and the slewing bearing installation seat due to dimensional change is solved through the rotation of the trunnion.

The two sides of the slewing bearing mounting seat are provided with self-centering adjusting trunnions, the other section of the self-centering adjusting trunnion is arranged in a self-centering adjusting trunnion base on the furnace body tilting frame, and the self-centering adjusting trunnion can slightly move and rotate in the axis direction in the self-centering adjusting trunnion base. When the furnace body tilting frame or the furnace body generates axis deviation in the running process, namely, the center line of the furnace body and the center line of the furnace body tilting frame are not on the same vertical plane, the self-centering adjusting trunnions on the left side and the right side of the furnace body slewing mechanism can perform position fine adjustment relative to the self-centering adjusting trunnion base, so that the parallelism of the center axis of the furnace body and the center axis of the furnace body tilting frame on a vertical plane is maintained, the torque possibly generated in the furnace body rotating process is eliminated, equipment is protected, and the service life is prolonged.

In the converter using the slewing bearing structure, preferably, an extension section is provided at a tail of the furnace body, and the furnace body is connected with the slewing ring of the slewing bearing through the extension section.

In the revolving furnace using the slewing bearing structure, preferably, a bottom end ring sleeve is further arranged at the furnace tail of the furnace body, and a plurality of stiffening plates are arranged among the bottom end ring sleeve, the extension section and the furnace body. The adoption of the reinforcing plate increases the structural stability of the furnace body and the furnace body slewing mechanism during connection.

The local high temperature generated by the traditional furnace body during smelting can be transmitted to the slewing mechanism, so that the performance and the service life of the components are affected. In the utility model, the tail part of the furnace body is welded with the bottom end ring sleeve and the extension section, and a plurality of stiffening plates are welded between the bottom end ring sleeve and the extension section, and the extension section enables the furnace body slewing mechanism connected with the tail part of the furnace body to be far away from the furnace body. The device at the tail of the furnace body reduces the heat receiving quantity generated by the furnace body slewing mechanism due to smelting, so that the precision of the slewing mechanism is ensured, and the service life of the part is prolonged.

In the above converter using the slewing bearing structure, preferably, the converter further includes a turnover driving mechanism for driving the furnace body and the furnace body tilting frame to turn over. In the utility model, the structure of the furnace body tilting frame and the structure of the overturning driving mechanism can be unlimited, for example, the overturning driving mechanism is a hydraulic cylinder arranged at two sides of the furnace body, and the structure is simple; for example, the furnace body tilting frame is matched with the overturning driving mechanism, so that the structure of overturning the furnace body by 360 degrees can be realized.

In the converter using the slewing bearing structure, preferably, the rotation driving mechanism may be a gear motor, and is driven by a conventional gear motor, so that the structure is simple. Of course, other rotary drive machines may be employed in the present utility model, or other actions may be converted to rotary drive machines.

In the utility model, the slewing bearing mainly comprises rolling bodies, an inner ring, an outer ring and the like, and the inner ring is taken as a rotary gear ring for illustrating a typical structure and a working mode as follows: the outer ring of the slewing bearing is arranged at the center of the slewing bearing mounting seat, the inner ring of the slewing bearing is connected with the extension section, the outer ring is fixed on the slewing bearing mounting seat for supporting, and the inner ring can rotate. The motor main body of the rotation driving mechanism is fixedly arranged on the slewing bearing mounting seat and positioned at the rear of the slewing bearing, a gear is arranged at the shaft end of the motor and meshed with the teeth of the inner ring in the slewing bearing, the motor is used for providing motive power for the axial rotation of the furnace body, when the furnace body needs to rotate, the motor is started, the gear fixed at the end of the motor rotates under the driving of the motor to drive the inner ring of the slewing bearing to rotate, and the inner ring rotates to drive the extension section to rotate, so that the driving force is transmitted to the furnace body to drive the furnace body to rotate around the longitudinal axis.

According to the utility model, the slewing bearing integrates a supporting structure and a driving structure in the prior art, the slewing bearing can bear axial bidirectional load through the slewing bearing mounting seat, and in a normal working state, the slewing bearing can drive the furnace body to rotate through the rotary gear ring and the gear, and in addition, the slewing bearing also bears the pressure of the furnace body downwards perpendicular to the slewing bearing; and when the furnace body is turned over, the self structural characteristics of the slewing bearing can be used for still transmitting the pulling force of the furnace body vertical to the slewing bearing to the furnace body tilting frame through the slewing bearing mounting seat so as to play a supporting role and prevent the furnace body from falling out of the furnace frame under the action of gravity. And because of adopting the trunnion structure of self-centering adjustment, the overturning moment to the slewing bearing caused by the thermal expansion of the furnace body is eliminated, therefore, the slewing bearing in the structure does not bear any over-constraint force, the working environment is good, the service life of equipment is long, and the processing difficulty is low.

Compared with the prior art, the utility model has the advantages that:

1. according to the revolving furnace using the slewing bearing structure, the revolving mechanism of the furnace body and the tilting frame of the furnace body are skillfully combined into one through the slewing bearing and the slewing bearing mounting seat, so that the structural design is simplified, the service life of equipment is longer, the transmission efficiency is higher, the processing difficulty is low, the structure is simple, and the installation and the disassembly are easier.

2. The revolving support can bear axial load and radial load, and can bear overturning moment when the furnace body tilts due to the specificity of the revolving support structure. When the traditional converter is toppled, the toppling moment is born through the joint of the backing ring and the tail part, and the backing ring is required to have larger strength.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a rotary kiln using a slewing bearing structure in example 1.

Fig. 2 is a cross-sectional view taken along the central longitudinal section of the furnace body in fig. 1.

Fig. 3 is a schematic diagram showing a structure in which a furnace body turning mechanism and a rotation driving mechanism are connected in embodiment 1.

Fig. 4 is a schematic diagram showing a structure in which a furnace body turning mechanism and a rotation driving mechanism are connected in embodiment 2.

Fig. 5 is a schematic structural view of a rotary kiln using a slewing bearing structure in example 3.

Legend description:

1. a bottom end ring sleeve; 2. an extension section; 3. a slewing bearing mounting seat; 31. self-centering adjustment trunnion; 4. self-centering adjustment trunnion base; 5. a motor; 6. a slewing bearing; 61. an inner ring; 62. an outer ring; 7. a gear; 10. a furnace body; 12. a furnace body tilting frame; 13. reinforcing plates; 14. and a hydraulic cylinder.

Detailed Description

The present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the utility model, but the scope of the utility model is not limited to the specific embodiments shown.

Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present utility model.

Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present utility model are commercially available or may be prepared by existing methods.

Example 1:

as shown in fig. 1 to 3, the converter using the slewing bearing structure of this embodiment includes a furnace body 10, a furnace body tilting frame 12, and a rotation driving mechanism (which may be a motor 5 (specifically may be a gear motor)) for driving the furnace body 10 to rotate, and further includes a furnace body slewing mechanism, the furnace body slewing mechanism includes a slewing bearing 6 and a slewing bearing mounting seat 3, the slewing bearing 6 is disposed on the slewing bearing mounting seat 3, a furnace tail of the furnace body 10 is connected with a rotating ring (rotating ring gear) of the slewing bearing 6, the rotation driving mechanism is meshed with the rotating ring gear of the slewing bearing 6 through a gear 7, and the slewing bearing mounting seat 3 is connected with the furnace body tilting frame 12.

In this embodiment, the rotary gear ring of the slewing bearing 6 is an inner ring 61, the center of the slewing bearing mounting seat 3 is provided with an opening, and the slewing bearing 6 is fixedly arranged at the central opening of the slewing bearing mounting seat 3 through an outer ring 62 thereof.

In this embodiment, self-centering trunnions 31 are provided on both sides of the slewing bearing mounting base 3, the furnace tilting frame 12 is provided with a self-centering trunnion base 4, and the slewing bearing mounting base 3 is connected to the self-centering trunnion base 4 of the furnace tilting frame 12 through the self-centering trunnions 31. The self-centering adjustment trunnion 31 is rotatably provided in the self-centering adjustment trunnion base 4 so as to be movable in the axial direction of the self-centering adjustment trunnion 31.

In the embodiment, an extension section 2 is arranged at the tail of the furnace body 10, and the furnace body 10 is connected with a rotary gear ring of the slewing bearing 6 through the extension section 2.

In the embodiment, a bottom end collar 1 is further arranged at the furnace tail of the furnace body 10, and a plurality of stiffening plates 13 are arranged among the bottom end collar 1, the extension section 2 and the furnace body 10.

In this embodiment, the converter further includes a turnover driving mechanism for driving the furnace body 10 and the furnace body tilting frame 12 to turn over. The overturning driving mechanism is a hydraulic cylinder 14 arranged at two sides of the furnace body 10.

Of course, in the present embodiment, other conventional components may be used for the rotation driving mechanism and the turnover driving mechanism, and the present embodiment is not limited thereto.

In this embodiment, the slewing bearing 6 can bear axial load, radial load and overturning moment. The slewing bearing 6 mainly comprises rolling bodies, an inner ring 61, an outer ring 62 and the like, the outer ring 62 of the slewing bearing 6 is arranged at the center of the slewing bearing mounting seat 3, the inner ring 61 of the slewing bearing 6 is connected with the extension section 2, the outer ring 62 is fixed on the slewing bearing mounting seat 3 for supporting, and the inner ring 61 can rotate. The gear 7 is arranged at the shaft end of the motor 5 of the rotation driving mechanism, the gear 7 is meshed with teeth of the inner ring 61 in the slewing bearing 6, the motor 5 provides motive power for axial rotation of the furnace body 10, when the furnace body 10 needs to rotate, the motor 5 is turned on, the gear 7 with the fixed end head rotates under the driving of the motor 5 to drive the inner ring 61 of the slewing bearing 6 to rotate, the inner ring 61 rotates to drive the extension section 2 to rotate, and therefore driving force is transmitted to the furnace body 10 to drive the furnace body 10 to rotate around the longitudinal axis.

Example 2:

the converter using the slewing bearing structure of this embodiment includes a furnace body 10, a furnace body tilting frame 12, and a rotation driving mechanism for driving the furnace body 10 to rotate, and also includes a furnace body slewing mechanism, the furnace body slewing mechanism includes a slewing bearing 6 and a slewing bearing mounting seat 3, the slewing bearing 6 is disposed on the slewing bearing mounting seat 3, the furnace tail of the furnace body 10 is connected with a rotating ring (rotating gear ring) of the slewing bearing 6, the rotation driving mechanism is meshed with the rotating gear ring of the slewing bearing 6 through a gear 7, and the slewing bearing mounting seat 3 is connected with the furnace body tilting frame 12.

As shown in fig. 4, in the present embodiment, the rotary ring gear of the slewing bearing 6 is an outer ring 62, and the slewing bearing 6 is fixed to the slewing bearing mounting seat 3 through an inner ring 61 thereof.

Other structures of this embodiment may be the same as embodiment 1. In a specific use, the driving force of the driving end gear 7 of the motor 5 is transmitted to the furnace body 10 through the outer ring 62.

Example 3:

as shown in fig. 5, in the rotary support structure of the converter of the present embodiment, the installation manner and structure of the furnace body 10 and the furnace body tilting frame 12 are different from those of embodiment 1, and the bottom end ring sleeve 1 and the reinforcing plate 13 are not provided at the furnace tail of the furnace body 10. Other structures may be the same as embodiment 1.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The converter using the slewing bearing structure comprises a furnace body (10), a furnace body tilting frame (12) and a rotation driving mechanism for driving the furnace body (10) to rotate, and is characterized by further comprising a furnace body slewing mechanism, wherein the furnace body slewing mechanism comprises a slewing bearing (6) and a slewing bearing mounting seat (3), the slewing bearing (6) is arranged on the slewing bearing mounting seat (3), a furnace tail of the furnace body (10) is connected with a rotating ring of the slewing bearing (6), and the rotation driving mechanism is connected with the rotating ring through a transmission mechanism for transmitting driving force of the rotation driving mechanism to the rotating ring, and the slewing bearing mounting seat (3) is connected with the furnace body tilting frame (12).

2. The converter using the slewing bearing structure according to claim 1, wherein the rotating ring of the slewing bearing (6) is an inner ring (61), an opening is arranged at the center of the slewing bearing mounting seat (3), and the slewing bearing (6) is fixedly arranged at the central opening of the slewing bearing mounting seat (3) through an outer ring (62) thereof.

3. The converter using a slewing bearing structure according to claim 1, characterized in that the rotating ring of the slewing bearing (6) is an outer ring (62), and the slewing bearing (6) is fixedly arranged on the slewing bearing mounting seat (3) through an inner ring (61) thereof.

4. A converter using a slewing bearing structure according to claim 1, characterized in that the rotating ring of the slewing bearing (6) is a rotating ring gear, the transmission mechanism is a gear (7), and the rotation driving mechanism is meshed with the rotating ring gear of the slewing bearing (6) through the gear (7).

5. Converter using a slewing bearing structure according to claim 1, characterized in that the slewing bearing mounting seat (3) is provided with self-centering adjustment trunnions (31) on both sides, the furnace tilting frame (12) is provided with self-centering adjustment trunnion bases (4), and the slewing bearing mounting seat (3) is connected with the self-centering adjustment trunnion bases (4) of the furnace tilting frame (12) through the self-centering adjustment trunnions (31).

6. A converter using a slewing bearing structure according to claim 5, characterized in that the self-centering adjustment trunnion (31) is rotatably provided in the self-centering adjustment trunnion base (4) and movable in the axial direction of the self-centering adjustment trunnion (31).

7. Converter with slewing bearing structure according to any of claims 1-6, characterized in that an extension (2) is provided at the tail of the furnace body (10), through which extension (2) the furnace body (10) is connected to the swivel ring of the slewing bearing (6).

8. The converter using the slewing bearing structure according to claim 7, wherein a bottom end ring sleeve (1) is further arranged at the tail of the furnace body (10), and a plurality of stiffening plates (13) are arranged among the bottom end ring sleeve (1), the extension section (2) and the furnace body (10).

9. A converter using a slewing bearing according to any of claims 1-6, characterized in that the converter further comprises a tilting drive mechanism for driving the furnace body (10) and furnace tilting frame (12) to tilt.

10. The converter using a slewing bearing structure according to claim 9, wherein the tilting drive mechanism is a hydraulic cylinder (14) provided on both sides of the furnace body (10).