Online rotating device for sublance body of converter

Abstract

The utility model discloses a converter sublance body on-line rotating device which comprises a support, a transmission mechanism, a machine frame and a clamping device, and the transmission mechanism is installed on the support and used for driving the machine frame and the clamping device to rotate. The rack is connected to the support and used for installing the clamping device. The clamping device comprises a driving source, a connecting rod connected with the driving source and a clamping device used for being arranged outside a sublance body in a sleeving mode. When the driving source is opened, the connecting rod is driven to open the clamping device, and the sublance body can move relative to the clamping device; when the driving source is closed, the connecting rod is driven to close the clamping device, and the sublance body is static relative to the clamping device; the transmission mechanism can drive the rack, the clamping device and the sublance body to synchronously rotate by a preset angle. The gun body can be rotated on line, the operation convenience is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment used in the metallurgical industry, in particular to an online rotating device for a converter auxiliary gun body. Background Art

[0002] The auxiliary lance of the converter consists of a lance body and a probe clamping tube at the tail. The auxiliary lance body is a water-cooled three-layer steel pipe with a diameter of The length is about 23m. During the measurement of the auxiliary gun, the auxiliary gun body uses the clamping tube at the tail to carry a probe into the molten steel to directly measure the temperature, carbon content, oxygen content and other information of the molten steel. To complete the entire measurement process, the auxiliary gun body stays in the molten steel for about 15 seconds. Especially when using the TSC probe for measurement, the oxygen gun is still in the blowing process, and the central reaction temperature of the molten steel will reach more than 2500 degrees. During the stay of the molten steel, the temperature of the auxiliary gun body close to the oxygen gun is high, and the temperature of the side close to the converter wall is low. Due to uneven heating, the auxiliary gun body is very easy to bend. At the same time, since the auxiliary gun body is slender, the bending is aggravated.

[0003] In order to eliminate the bending, the auxiliary gun body needs to be rotated 180 degrees after a period of use, so that different sides face the oxygen gun side alternately to offset the bending caused by uneven heating.

[0004] At present, the method of rotating the oxygen lance body is manual, using a pipe clamp to clamp the lance body and rotate it manually. This method is inconvenient to operate, increases the workload, and increases the labor intensity of workers.

[0005] Therefore, it is necessary to propose an online rotation device for the converter auxiliary lance body to solve at least one of the above problems. Utility Model Content

[0006] In view of the defects existing in the prior art, an online rotation device for the gun body of a converter auxiliary gun is provided in an embodiment of the utility model. By using a mechanical device, the gun body is rotated online, which improves the convenience of operation and reduces labor intensity.

[0007] The specific technical solution of the implementation mode of the utility model is:

[0008] A device for online rotation of a converter auxiliary gun body, the device comprising: a support, a transmission mechanism, a frame and a clamping device, the transmission mechanism being mounted on the support and used for driving the frame and the clamping device to rotate; the frame being connected to the support and used for installing the clamping device; the clamping device comprising: a driving source, a connecting rod connected to the driving source, and a clamping device for being sleeved on the outside of the auxiliary gun body; when the driving source is turned on, the connecting rod is driven to open the clamping device, and the auxiliary gun body can move relative to the clamping device; when the driving source is turned off, the connecting rod is driven to close the clamping device, and the auxiliary gun body is stationary relative to the clamping device; the transmission mechanism can drive the frame, the clamping device and the auxiliary gun body to rotate synchronously by a predetermined angle.

[0009] In a preferred embodiment, the transmission mechanism includes: a reduction motor, a pinion, and a slewing support, the reduction motor is drivingly connected to the pinion, the pinion is drivingly connected to the slewing support, and the slewing support is connected to the frame.

[0010] In a preferred embodiment, the slewing bearing comprises: an internal gear, an external gear, and a rolling body arranged between the internal gear and the external gear, and the external gear is meshed with the pinion.

[0011] In a preferred embodiment, the converter auxiliary gun body online rotation device further comprises a sealing cover, wherein the sealing cover is at least provided outside the pinion, and the sealing cover is fixedly connected to the support.

[0012] In a preferred embodiment, the sealing cover comprises a horizontal top surface and side surfaces surrounding the horizontal top surface, and the downward projection of the horizontal top surface covers the matching position of the pinion gear and the external gear.

[0013] In a preferred embodiment, the online rotation device of the converter auxiliary gun body also includes a bearing seat fixed on the frame, the driving source includes a cylinder and a push rod connected to the cylinder, the connecting rod is provided with a first mounting part, a second mounting part and a third mounting part, the first mounting part is mounted on the bearing seat and is rotatably connected to the bearing seat, the second mounting part is rotatably connected to the push rod, the third mounting part is fixedly connected to the clamp, the cylinder drives the push rod to move, and the push rod drives the connecting rod to rotate around the hinge center of the first mounting part and the bearing seat, thereby driving the clamp to move.

[0014] In a preferred embodiment, the clamp includes a first pair of clamps and a second pair of clamps, and the first pair of clamps and the second pair of clamps are two semicircular structures. When the clamp is in a closed state, the first pair of clamps and the second pair of clamps form a limiting portion for cooperating with the auxiliary gun body, and the inner diameter of the limiting portion is equal to the outer diameter of the auxiliary gun body.

[0015] In a preferred embodiment, the driving source further includes an air source pipe connected to the cylinder, and an electromagnetic valve for controlling the on-off of the air source pipe.

[0016] In a preferred embodiment, the solenoid valve is an electromagnetic reversing valve. When the electromagnetic reversing valve is in a first position, the cylinder is opened and the clamp is opened through the push rod; when the electromagnetic reversing valve is in a second position, the cylinder is closed and the clamp is closed through the push rod.

[0017] In a preferred embodiment, the converter auxiliary gun body online rotation device further comprises a controller and a limit switch electrically connected to the controller, the number of the limit switches is two, and the two limit switches are spaced apart and distributed along the circumferential direction.

[0018] The technical solution of the utility model has the following significant beneficial effects:

[0019] (1) The utility model discloses a convenient and reliable on-line rotation device for the auxiliary gun body of a converter. The device is simple in equipment and easy to operate. It can be used for on-line rotation of the auxiliary gun body, replacing manual rotation of the gun body, effectively improving the rotation method of the auxiliary gun body, and completely eliminating the problems of inconvenient manual rotation operation and high labor intensity.

[0020] (2) The utility model discloses a convenient and reliable online rotation device for the auxiliary gun body of a converter. By providing a transmission mechanism with a reduction motor, a pinion, a slewing support and a clamping device with a clamp, the device effectively improves the convenience of rotating the auxiliary gun body, enables remote operation, reduces operation time and improves work efficiency.

[0021] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0023] Figure 1 It is a structural schematic diagram of an online rotating device for a converter auxiliary gun body provided in an embodiment of the present application;

[0024] Figure 2 It is a structural schematic diagram of a transmission mechanism in an online rotating device of a converter auxiliary gun body provided in an embodiment of the present application;

[0025] Figure 3 for Figure 2 Middle BB section view;

[0026] Figure 4 It is a schematic structural diagram of a rotary support of a converter auxiliary lance body in an online rotating device provided in an embodiment of the present application.

[0027] Reference numerals of the present application:

[0028] 100. Secondary gun body;

[0029] 101, clamping tube;

[0030] 200, platform beam;

[0031] 1. Support;

[0032] 2. Gear motor;

[0033] 3. Small gear;

[0034] 4. Slewing support; 41. External gear; 42. Internal gear; 43. Rolling element;

[0035] 5. Sealing cover;

[0036] 6. Rack;

[0037] 7. Bearing seat;

[0038] 8. Connecting rod;

[0039] 9. Clamp;

[0040] 10. Cylinder;

[0041] 11. Putting. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.

[0043] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0045] The utility model provides an online rotating device for a converter auxiliary lance body, which can overcome the shortcomings of the prior art in which the oxygen lance body is rotated manually. Specifically, a device using a motor to rotate the auxiliary lance body is provided, thereby solving the problems of high labor intensity and inconvenient operation in the prior art in which manual rotation is performed.

[0046] Please refer to Figures 1 to 3 In the implementation manner of the present application specification, a device for online rotation of a converter auxiliary gun body 100 is provided, and the device for online rotation of the converter auxiliary gun body 100 may include: a support 1, a transmission mechanism, a frame 6 and a clamping device, wherein the transmission mechanism is installed on the support 1 and is used to drive the frame 6 and the clamping device to rotate; the frame 6 is connected to the support 1 and is used to install the clamping device; the clamping device includes: a driving source, a connecting rod 8 connected to the driving source, and a clamp 9 for being sleeved on the outside of the auxiliary gun body 100; when the driving source is turned on, the connecting rod 8 is driven to open the clamp 9, and the auxiliary gun body 100 can move relative to the clamp 9; when the driving source is turned off, the connecting rod 8 is driven to close the clamp 9, and the auxiliary gun body 100 is stationary relative to the clamp 9; the transmission mechanism can drive the frame 6, the clamping device and the auxiliary gun body 100 to rotate synchronously by a predetermined angle.

[0047] The online rotation device of the converter auxiliary gun body 100 provided in the embodiment of the present application is simple in equipment and easy to operate. It can be used for online rotation of the auxiliary gun body 100, replacing manual rotation of the gun body, effectively improving the rotation mode of the auxiliary gun body 100, and completely eliminating the problems of inconvenient manual rotation operation and high labor intensity.

[0048] Among them, Figure 1 As shown, the converter auxiliary lance body 100 comprises an auxiliary lance body and a clamping tube 101 at the tail.

[0049] The present application will be described in detail below with reference to specific drawings and implementation methods.

[0050] Among them, the online rotation device of the converter auxiliary gun body 100 can include a support 1, a reduction motor 2, a pinion 3, a slewing support 4, a sealing cover 5, a frame 6, a bearing seat 7, a connecting rod 8, a clamp 9, a cylinder 10, a push rod 11 and a limit switch (not shown in the drawings), etc. The online rotation device of the converter auxiliary gun body 100 can conveniently rotate and correct the auxiliary gun body 100 online.

[0051] The support 1 may be a steel structure welded part, welded to the platform beam 200; the support 1 can support the components arranged thereon. Specifically, the support 1 may be a fixed base welded to the platform beam 200, the overall outer contour may be a circular structure, and the upper part thereof may be connected to the slewing bearing by bolts.

[0052] like Figure 2 and Figure 3 As shown, the reduction motor 2, the pinion 3 and the slewing support 4 can constitute a transmission mechanism to provide power for the rotation of the online rotating device of the converter auxiliary gun body 100.

[0053] The reduction motor 2 is used to output a rotational driving force. Specifically, the reduction motor 2 can be connected to the pinion 3 in a transmission manner to provide a rotational driving force for the pinion 3. For example, the reduction motor 2 has an output shaft, and the center of the pinion 3 has a center hole. The pinion 3 is sleeved on the output shaft through the center hole, and the torque can be transmitted between the output shaft and the center hole by setting a limiting mechanism. Specifically, a keyway for installing a key can be formed on the output shaft, and the limiting mechanism can include a key. In addition, the pinion 3 can also be fixed with the assistance of a retaining ring and a nut. Of course, the fixing method of the pinion 3 is not limited to the above examples. The technicians in the relevant field may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should be covered within the protection scope of this application. Specifically, the model of the reducer can be K97 DT100L6.

[0054] The pinion 3 is respectively connected to the reduction motor 2 and the slewing support 4. Specifically, the middle part of the pinion 3 is connected to the reduction motor 2, and the periphery of the pinion 3 is provided with teeth that cooperate with the slewing support 4. The pinion 3 can be a quenched and tempered pinion 3. Specifically, when the model of the slewing support 4 is 011.45.1400, the number of teeth of the pinion 3 can be 26. Of course, the number of teeth of the pinion 3 is not limited to the above examples, and it can also be more or less. Specifically, it can be determined according to the component that cooperates with it, that is, the model of the slewing support 4.

[0055] like Figure 4 As shown, the outer gear 41 of the slewing support 4 and the gear of the pinion 3 can perform meshing motion. Overall, the slewing support 4 is a support structure that realizes the slewing and rotation of an object through its internal motion. The internal structure of the slewing support includes components such as an inner gear 42, an outer gear 41, a rolling element 43, and a sealing ring. Its working principle is: the slewing is realized through the meshing of the inner gear 42 and the outer gear 41 and the rolling friction between the rolling elements 43.

[0056] The slewing support 4 cooperates with the pinion 3, and the rotation of the pinion 3 drives the slewing support 4 to rotate. Specifically, the teeth of the outer gear 41 of the slewing support 4 and the pinion 3 can perform meshing motion.

[0057] In some embodiments, the converter auxiliary gun body 100 online rotating device may also be provided with a sealing cover 5 , wherein the sealing cover 5 is at least provided outside the pinion 3 , and the sealing cover 5 is fixedly connected to the support 1 .

[0058] Specifically, the sealing cover 5 can be used to seal the pinion 3, protect the pinion 3, and achieve dustproof, waterproof and anti-fouling effects. Specifically, the sealing cover 5 and the support 1 can be fixedly connected by welding. Of course, the fixed connection method is not limited to the above example. Those skilled in the art may make other changes inspired by the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should be included in the protection scope of this application. In addition, the sealing cover 5 may include a horizontal top surface and a side surface surrounding the horizontal top surface, wherein the horizontal top surface may also be located on the reduction motor 2, and can cover the motor output shaft to protect the matching position of the reduction motor 2 and the pinion 3.

[0059] Furthermore, the downward projection of the horizontal top surface can cover the matching position of the pinion gear 3 and the slewing support 4 , thereby being able to protect the pinion gear 3 and the outer gear 41 of the slewing support 4 .

[0060] The frame 6 is connected to the slewing support 4 and can rotate with the slewing support 4. The frame 6 is concentric with the slewing support 4, so that the slewing support 4 can smoothly drive the frame 6 to rotate. Specifically, the upper part of the frame 6 can be a circular structure, and the lower part can be a conical structure.

[0061] The frame 6 is provided with a bearing seat 7, a connecting rod 8, a clamp 9, a cylinder 10 and a push rod 11. The bearing seat 7, the connecting rod 8, the clamp 9, the cylinder 10 and the push rod 11 can constitute a clamping device of the auxiliary gun body 100.

[0062] The bearing seat 7 is used to install the connecting rod 8, and the bearing seat 7 is rotatably connected to one end of the connecting rod 8. The rotatable connection can be hinged. Specifically, the bearing seat 7 is provided with openings at both ends, and one end of the connecting rod 8 is hinged to the openings. The bearing seat 7 can be selected from the model SNL509TA+22209EK+H309, and the inner diameter of the opening can be

[0063] In some embodiments, the connecting rod 8 is provided with a first mounting portion, a second mounting portion and a third mounting portion, the first mounting portion is mounted on the bearing seat 7 and is rotatably connected to the bearing seat 7, the second mounting portion is rotatably connected to the push rod 11, and the third mounting portion is fixedly connected to the clamp 9, the cylinder 10 drives the push rod 11 to move, and the push rod 11 drives the connecting rod 8 to rotate around the hinge center of the first mounting portion and the bearing seat 7, thereby driving the clamp 9 to move, thereby realizing the opening and closing of the clamp 9.

[0064] Among them, the first mounting portion and the second mounting portion can both be hinged portions. The hinged portion can specifically be a hole-shaft fit. The fixed connection method can be welding, so as to ensure the firmness and reliability of the connection position between the connecting rod 8 and the clamp 9. Of course, the fixed connection method is not limited to the above examples. Technicians in the relevant field may make other changes under the inspiration of the technical essence of this application, but as long as the functions and effects achieved are the same or similar to those of this application, they should be covered within the protection scope of this application.

[0065] The clamp 9 can play the role of clamping the auxiliary gun body 100. In one embodiment, the clamp 9 includes a first pair of clamps and a second pair of clamps, the first pair of clamps and the second pair of clamps are two semicircular structures, when the clamp 9 is in a closed state, the first pair of clamps and the second pair of clamps form a limiting portion for matching the auxiliary gun body 100, and the inner diameter of the limiting portion is equal to the outer diameter of the auxiliary gun body 100.

[0066] Specifically, the clamp 9 may include two semicircular structures, namely a first pair of clamps and a second pair of clamps. When the first pair of clamps and the second pair of clamps are closed, their inner diameters are equal to the outer diameter of the auxiliary gun body 100, that is, the auxiliary gun body 100 is closely arranged with the clamp 9, and the auxiliary gun body 100 cannot move relative to the clamp 9. When the clamp 9 is opened, the first pair of clamps and the second pair of clamps can be separated, and the auxiliary gun body 100 can move relative to the clamp 9.

[0067] The cylinder 10 can be used as a typical driving source to provide driving force for the clamping device. Of course, the form of the driving source is not limited to the cylinder 10, and it can also be in other forms. In the embodiments of the present application, the cylinder 10 is mainly used as an example for illustration.

[0068] Generally, a push rod 11 is provided at the output end of the cylinder 10, and the push rod 11 can move along the axial direction of the cylinder 10, that is, reciprocate along the axial direction. The cylinder 10 and the push rod 11 can constitute a driving source. Under the action of the cylinder 10, the push rod 11 can control the opening and closing of the clamp 9. The cylinder 10 can be fixed on the frame 6. Specifically, the cylinder 10 can be connected to an air source pipe, and an electromagnetic valve can be provided on the air source pipe to control the opening and closing of the cylinder 10 through the electromagnetic valve. Under the action of the cylinder 10, the push rod 11 controls the opening and closing of the clamp 9.

[0069] Furthermore, in a specific embodiment, the solenoid valve is an electromagnetic reversing valve. When the electromagnetic reversing valve is in a first position, the cylinder 10 is opened, and the clamp 9 is opened through the push rod 11; when the electromagnetic reversing valve is in a second position, the cylinder 10 is closed, and the clamp 9 is closed through the push rod 11.

[0070] In this embodiment, the solenoid valve may be a solenoid reversing valve, and the cylinder 10 controls the switch through the solenoid reversing valve, thereby controlling the opening and closing of the clamp 9. When the solenoid reversing valve is in the first position, the cylinder 10 is opened, and the clamp 9 is opened through the push rod 11, and the auxiliary gun body 100 can be drawn out of the clamp 9; when the solenoid reversing valve is in the second position, the cylinder 10 is closed, and the clamp 9 is closed through the push rod 11, and the clamp 9 can clamp the auxiliary gun body 100.

[0071] When in use, the auxiliary gun body 100 enters the converter auxiliary gun body 100 online rotation device when the clamp 9 is open. When it descends to the predetermined clamping position, the cylinder 10 is closed and the clamp 9 is closed through the push rod 11. At this time, the auxiliary gun body 100 can rotate with the clamp 9.

[0072] Furthermore, in one embodiment, the online rotation device of the converter auxiliary gun body 100 further includes a controller and a limit switch electrically connected to the controller, and the number of the limit switches is two, and the two limit switches are spaced apart and distributed along the circumferential direction.

[0073] The online rotating device of the converter auxiliary gun body 100 may also include a limit switch. Specifically, the number of the limit switches may be 2, and the limit switch is used to assist in controlling the start and stop of the reduction motor 2. The controller is electrically connected to the reduction motor 2. When the clamping device of the converter auxiliary gun body 100 online rotating device reaches another limit switch position from one limit switch position, it indicates that the clamping device has been switched into place, and the controller may control the reduction motor 2 to stop working. Specifically, the limit switches may be symmetrically distributed at 180° along the circumferential direction, so that the clamping device may switch positions in the same direction in one direction, clockwise or counterclockwise, without reversing.

[0074] The method of using the online rotating device to rotate the auxiliary gun body 100 is as follows:

[0075] Step 1: The clamp 9 is in the open state, and the auxiliary gun body 100 enters the clamp 9 (the control of the gun body is completed by a set of systems provided by the gun body). When the predetermined clamping position is reached, the solenoid valve controls the cylinder 10 to close, and the clamp 9 is closed through the push rod 11 to clamp the auxiliary gun body 100.

[0076] Step 2: The reduction motor 2 transmits power to drive the pinion 3 to rotate, and the pinion 3 drives the slewing support 4 to rotate. The slewing support 4 rotates with the clamp 9, and the auxiliary gun body 100 rotates accordingly.

[0077] Step 3: The rotation angle is controlled by the limit switch. When the rotation angle reaches another limit switch position from the starting limit switch position, the reduction motor 2 stops working.

[0078] Step 4: The solenoid valve controls the cylinder 10 to open, and the clamp 9 is opened through the push rod 11, and the auxiliary gun body 100 can be freely raised and lowered, completing a rotation process.

[0079] Step 5: The next rotation process performs the reverse process of step 3.

[0080] The beneficial effects of the utility model are:

[0081] (1) The utility model discloses a convenient and reliable online rotation device for the auxiliary gun body 100 of a converter. The device is simple in equipment and easy to operate. It can be used for online rotation of the auxiliary gun body 100, replacing the manual rotation of the gun body, effectively improving the rotation method of the auxiliary gun body 100, and completely eliminating the problems of inconvenient operation and high labor intensity of manual rotation.

[0082] (2) The utility model discloses a convenient and reliable online rotation device for the auxiliary gun body 100 of the converter. By setting a transmission mechanism with a reduction motor 2, a pinion 3, a slewing support 4 and a clamping device with a clamp 9, the convenience of the rotation of the auxiliary gun body 100 is effectively improved, remote operation is performed, the operation time is reduced, and the work efficiency is improved.

[0083] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0084] The above-mentioned various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0085] The above are only a few embodiments of the present invention. Although the embodiments disclosed by the present invention are as above, the contents are only embodiments adopted for facilitating the understanding of the present invention and are not used to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modification and change in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the scope of patent protection of the present invention shall still be subject to the scope defined by the attached claims.

Claims

1. An online rotating device for a converter auxiliary gun body, characterized in that: The converter auxiliary gun body online rotating device comprises: a support, a transmission mechanism, a frame and a clamping device. The transmission mechanism is installed on the support and is used to drive the frame and the clamping device to rotate; The frame is connected to the support and is used to install the clamping device; The clamping device comprises: a driving source, a connecting rod connected to the driving source, and a clamp for being sleeved on the outer body of the auxiliary gun; When the driving source is turned on, the connecting rod is driven to open the clamp, and the auxiliary gun body can move relative to the clamp; when the driving source is turned off, the connecting rod is driven to close the clamp, and the auxiliary gun body is stationary relative to the clamp; the transmission mechanism can drive the frame, the clamping device and the auxiliary gun body to rotate synchronously by a predetermined angle.

2. The converter auxiliary gun body online rotating device according to claim 1, characterized in that: The transmission mechanism comprises: a reduction motor, a pinion, and a slewing support. The reduction motor is in driving connection with the pinion, the pinion is in driving connection with the slewing support, and the slewing support is connected to the frame.

3. The converter auxiliary gun body online rotating device according to claim 2, characterized in that: The slewing bearing includes an internal gear, an external gear, and a rolling body arranged between the internal gear and the external gear, and the external gear is meshed with the pinion gear.

4. The converter auxiliary gun body online rotating device according to claim 3, characterized in that: The converter auxiliary gun body online rotation device further comprises a sealing cover, wherein the sealing cover is at least arranged outside the pinion, and the sealing cover is fixedly connected to the support.

5. The converter auxiliary gun body online rotating device according to claim 4, characterized in that: The sealing cover comprises a horizontal top surface and side surfaces surrounding the horizontal top surface, and the downward projection of the horizontal top surface covers the matching position of the pinion gear and the external gear.

6. The converter auxiliary gun body online rotating device according to claim 1, characterized in that: The online rotation device of the converter auxiliary gun body also includes a bearing seat fixed on the frame, the driving source includes a cylinder and a push rod connected to the cylinder, the connecting rod is provided with a first mounting part, a second mounting part and a third mounting part, the first mounting part is mounted on the bearing seat and rotatably connected to the bearing seat, the second mounting part is rotatably connected to the push rod, the third mounting part is fixedly connected to the clamp, the cylinder drives the push rod to move, and the push rod drives the connecting rod to rotate around the hinge center of the first mounting part and the bearing seat, thereby driving the clamp to move.

7. The converter auxiliary gun body online rotating device according to claim 6, characterized in that: The clamp includes a first pair of clamps and a second pair of clamps, and the first pair of clamps and the second pair of clamps are two semicircular structures. When the clamp is in a closed state, the first pair of clamps and the second pair of clamps form a limiting portion for cooperating with the auxiliary gun body, and the inner diameter of the limiting portion is equal to the outer diameter of the auxiliary gun body.

8. The converter auxiliary gun body online rotating device according to claim 7, characterized in that: The driving source also includes an air source pipe connected to the cylinder, and an electromagnetic valve for controlling the on-off of the air source pipe.

9. The converter auxiliary gun body online rotating device according to claim 8, characterized in that: The solenoid valve is an electromagnetic reversing valve. When the electromagnetic reversing valve is in a first position, the cylinder is opened and the clamp is opened through the push rod; when the electromagnetic reversing valve is in a second position, the cylinder is closed and the clamp is closed through the push rod.

10. The converter auxiliary gun body online rotating device according to claim 1, characterized in that: The converter auxiliary gun body online rotation device also includes a controller and a limit switch electrically connected to the controller. The number of the limit switches is two, and the two limit switches are spaced apart and distributed along the circumferential direction.

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