Connecting structure of sublance rotating platform

Abstract

The utility model belongs to the field of metallurgical equipment, and relates to a sublance rotating platform connecting structure which comprises a rotating platform, a rotating driving unit, a first connecting seat, a second connecting seat and a connecting rod. The first connecting base is fixedly installed on the rotating platform, and the second connecting base is fixedly installed on the rotating driving unit. The two ends of the connecting rod are hinged to the first connecting base and the second connecting base through a hinge point A and a hinge point B. The hinge point A and the hinge point B are each provided with a knuckle bearing structure freely rotating around the hinge axis, and a two-force-rod transmission mechanism is formed. The rotary driving unit transmits rotary power to the first connecting base through the connecting rod by rotating around the axis C of the main shaft, and the rotary platform is driven to synchronously rotate around the axis C of the main shaft. The sublance device has the advantages of being simple in structure, clear in stress, rapid and accurate in transmission, high in adaptability and the like, performance and reliability of the sublance device can be remarkably improved, and actual requirements in the intelligent steelmaking process are met.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical equipment and relates to a connection structure for a secondary gun rotating platform. Background Technology

[0002] In intelligent steelmaking processes, the auxiliary lance plays a crucial role, especially in converters with a steel output of 120 tons or more, where rotary auxiliary lances are standard equipment. This device moves flexibly between the measurement position and the probe mounting / removing position to complete measurement tasks and install / remove the probe. The rotary drive unit, a key component of the auxiliary lance, is tightly connected to the rotating platform via connecting components, responsible for accurately transmitting rotational power and motion to the platform. The performance of the connecting structure directly affects the reliability and accuracy of rotational motion transmission. Furthermore, an optimized connecting structure design reduces space occupation, facilitates a rational layout of the auxiliary lance, and provides more spacious area for maintenance and repair.

[0003] Currently, the connection structures between the secondary probe's rotating platform and the rotating drive unit are diverse, mainly including combined rod type and disc spring and rod type. However, some rods in the combined rod type need to withstand large radial forces, which is an unfavorable stress state, as radial loads may cause rod breakage, and the installation accuracy requirements are extremely high. The disc spring and rod type structure is relatively complex and bulky. Although the disc spring can effectively absorb impacts during transmission, its positioning accuracy and repeatability are poor, which is detrimental to the connection, disassembly, and measurement operations of the secondary probe. Furthermore, this structure lacks the ability to adapt to changes in the relative position of the rotating platform and the rotating drive unit, thus having certain limitations. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a connection structure for a secondary gun rotating platform, so as to reliably connect the rotating platform and the rotating drive unit, realize the smooth and high-speed rotation of the rotating platform and the precise stopping of the rotating platform, and at the same time, facilitate the control of the size of the rotating platform, making the arrangement of the secondary gun device possible.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary gun rotating platform connection structure, comprising a rotating platform, a rotating drive unit, a first connecting seat, a second connecting seat, and a connecting rod; the first connecting seat is fixedly installed on the rotating platform, and the second connecting seat is fixedly installed on the rotating drive unit; the two ends of the connecting rod are respectively hinged to the first connecting seat and the second connecting seat through hinge points A and B, and both hinge points A and B are provided with joint bearing structures that can rotate freely around the hinge axis, forming a two-force rod transmission mechanism; the rotating drive unit transmits rotational power to the first connecting seat through the connecting rod via rotational motion around the main shaft axis C, driving the rotating platform to rotate synchronously around the main shaft axis C.

[0006] Optionally, hinge point A is located in a first plane perpendicular to the main axis C, and the trajectory of its rotation around the main axis C forms a first circular path; hinge point B is located in a second plane perpendicular to the main axis C, and the trajectory of its rotation around the main axis C forms a second circular path.

[0007] Optionally, the radius difference between the first circular path and the second circular path is equal to the geometric relationship between the distance between the hinge points of the connecting rod and the distance between the main shaft axis C, so that the straight-line distance between hinge points A and B at any corresponding position on the two circular paths is always equal to the distance between the hinge points of the connecting rod.

[0008] Optionally, the connection between the first connecting seat and the rotating platform, and the connection between the second connecting seat and the rotating drive unit, are fixedly connected by bolts or welding.

[0009] Optionally, the spherical bearing structure uses a hinged component of a self-aligning roller bearing or a spherical plain bearing to achieve multi-degree-of-freedom rotation.

[0010] Optionally, the hinge is installed in the connector or in the link.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1) Simple structure and clear stress state: This connection structure uses a connecting rod as the transmission component, with both ends of the connecting rod hinged to the connecting seat to form a two-force rod structure. This structural form is simple and the stress state is clear, bearing only tensile and compressive loads, which is beneficial to improving the stability and reliability of the structure.

[0013] 2) Fast and accurate transmission, enabling precise positioning: Due to the rigid connection between the connecting rod and the connecting seat, the power of the rotary drive unit can be transmitted to the rotary platform quickly and accurately. Simultaneously, this structure ensures precise positioning of the rotary platform with high repeatability, meeting the requirements for precise control of the secondary lance device in intelligent steelmaking processes.

[0014] 3) High adaptability, ensuring smooth installation of the connecting rod: The connection structure is rationally designed, with the hinge points of the connecting rod and the connecting seat located on plane circles perpendicular to the main shaft axis. On these two circles, two points can always be found whose line length is equal to the distance between the hinge points of the connecting rod. This design ensures that the connecting rod can always be smoothly installed between the rotary platform and the rotary drive unit, and can adapt to changes in their relative positions.

[0015] In summary, the auxiliary gun rotating platform connection structure has the advantages of simple structure, clear force distribution, fast and accurate transmission, and strong adaptability. It can significantly improve the performance and reliability of the auxiliary gun device and meet the actual needs of intelligent steelmaking process.

[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1 Top view.

[0020] Reference numerals in the attached diagram: 1 is connecting seat one; 2 is connecting rod; 3 is connecting seat two; 4 is rotary drive unit; 5 is rotary platform; 6 is main spindle; A is the hinge point between connecting rod and connecting seat one; B is the hinge point between connecting rod and connecting seat two; C is the axis of the main spindle. Detailed Implementation

[0021] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Please see Figures 1-2 This is a secondary gun rotating platform connection structure, mainly including a rotating platform 5, a rotating drive unit 4, a connecting seat 1, a connecting seat 2, and a connecting rod 2.

[0025] Connector 1 is fixedly mounted on the rotating platform 5 with bolts (not shown in the figure) to ensure a stable connection between connector 1 and the rotating platform 5. Similarly, connector 3 is also fixedly mounted on the rotary drive unit 4 with bolts (not shown in the figure) to achieve a reliable connection between connector 3 and the rotary drive unit 4.

[0026] The connecting rod 2 has hinge points A and B at its two ends, which are respectively connected to connecting seat 1 and connecting seat 3 via spherical bearing structures (not shown in detail in the figure). The spherical bearing structure allows the connecting rod 2 to rotate freely around the hinge axis, thus forming a two-force bar transmission mechanism. This hinged connection method allows the connecting rod 2 to withstand a certain amount of lateral force and torque while transmitting rotational power, improving the flexibility and stability of the structure.

[0027] During rotation, the rotary drive unit 4 rotates around the main shaft axis C. This rotational motion is transmitted to the connecting seat 1 via the connecting rod 2, which in turn drives the rotary platform 5 to rotate synchronously around the main shaft axis C. Since the connecting rod 2 is rigidly connected to both the connecting seat 1 and the connecting seat 3, the rotational motion can be transmitted to the rotary platform 5 quickly and accurately, achieving smooth, high-speed rotation and precise stopping.

[0028] Furthermore, hinge point A is located in a first plane perpendicular to the main spindle axis C, and the trajectory of its rotation around the main spindle axis C forms a first circular path. Similarly, hinge point B is also located in a second plane perpendicular to the main spindle axis C, and the trajectory of its rotation around the main spindle axis C forms a second circular path. The difference in radius between these two circular paths is equal to the geometric relationship between the hinge point spacing of link 2 and the spacing of the main spindle axis C. Therefore, the straight-line distance between hinge points A and B at any corresponding position on the two circular paths is always constant and equal to the hinge point spacing of link 2. This design ensures that link 2 can always be smoothly installed between the rotary platform and the rotary drive unit, and can adapt to changes in their relative positions.

[0029] In this embodiment, the connection between connecting seat 1 and the rotating platform 5, and the connection between connecting seat 3 and the rotating drive unit 4, are both bolted. However, depending on actual needs, these connections can also be achieved using other fixing methods such as welding.

[0030] Furthermore, spherical plain bearing structures can utilize hinges such as self-aligning roller bearings or spherical plain bearings to achieve multi-degree-of-freedom rotation. These hinges can be installed in the connecting seat or in the connecting rod, depending on the specific design requirements and installation conditions.

[0031] In summary, the secondary lance rotating platform connection structure provided in this embodiment has advantages such as simple structure, clear force distribution, fast and accurate transmission, and strong adaptability. This structure can significantly improve the performance and reliability of the secondary lance device, meeting the actual needs of intelligent steelmaking processes.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A secondary gun rotating platform connection structure, characterized in that: It includes a rotating platform, a rotating drive unit, a first connecting seat, a second connecting seat, and a connecting rod; the first connecting seat is fixedly installed on the rotating platform, and the second connecting seat is fixedly installed on the rotating drive unit; the two ends of the connecting rod are respectively hinged to the first connecting seat and the second connecting seat through hinge point A and hinge point B, and both hinge point A and hinge point B are provided with a joint bearing structure that can rotate freely around the hinge axis, thus forming a two-force bar transmission mechanism; The rotary drive unit transmits the rotational power to the connecting seat 1 via a connecting rod through the rotational motion around the main shaft axis C, driving the rotary platform to rotate synchronously around the main shaft axis C.

2. The secondary gun rotating platform connection structure according to claim 1, characterized in that: Hinge point A is located in a first plane perpendicular to the main axis C, and the trajectory of its rotation around the main axis C forms a first circular path; hinge point B is located in a second plane perpendicular to the main axis C, and the trajectory of its rotation around the main axis C forms a second circular path.

3. The secondary gun rotating platform connection structure according to claim 2, characterized in that: The radius difference between the first circular path and the second circular path is equal to the geometric relationship between the distance between the hinge points of the connecting rod and the distance between the main shaft axis C, so that the straight-line distance between hinge points A and B at any corresponding position on the two circular paths is always equal to the distance between the hinge points of the connecting rod.

4. The secondary gun rotating platform connection structure according to claim 1, characterized in that: Both the first connecting seat and the rotating platform, and the second connecting seat and the rotating drive unit, are fixedly connected by bolts or welding.

5. The secondary gun rotating platform connection structure according to claim 1, characterized in that: The spherical bearing structure uses a hinged joint of a self-aligning roller bearing or a spherical plain bearing to achieve multi-degree-of-freedom rotation.

6. The secondary gun rotating platform connection structure according to claim 5, characterized in that: The hinge is installed in the connector or in the link.

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