Novel oxygen lance anti-falling device
By designing an oxygen lance anti-fall device, and utilizing the locking structure of the limit fork and wedge block, the problem of oxygen lance falling and causing explosion was solved, and safe and reliable oxygen lance lifting was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 北京京诚科创工程技术有限公司
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
During the converter steelmaking process, if the oxygen lance lifting wire rope breaks, causing the oxygen lance to fall, it may trigger an explosion and cause significant losses.
An oxygen lance fall prevention device was designed, including a mounting frame, a lifting rail, a wedge block, a limit fork, and a spring assembly. When the steel wire rope breaks, the spring assembly opens and the limit fork locks onto the wedge block, thereby achieving braking and fall prevention.
It effectively prevents oxygen lances from falling, avoids explosions, and ensures production safety.
Smart Images
Figure CN224243126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oxygen lance fall prevention technology, and in particular to a novel oxygen lance fall prevention device. Background Technology
[0002] Currently, the oxygen lance mechanism in domestic converters is still in the initial stage of converter steelmaking. During the smelting process, accidents often occur due to the breakage of the oxygen lance lifting wire rope. The total weight of the oxygen lance and its auxiliary mechanism is about 3-5 tons, and the falling height is about 20 meters. After falling, the oxygen lance is directly inserted into the bottom of the furnace and immersed in the molten steel. If the oxygen lance is damaged at this time, the high-pressure water inside the lance may leak out and cause a violent explosion with the molten steel, resulting in incalculable losses.
[0003] Therefore, we propose a novel oxygen lance fall prevention device to address the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel oxygen lance fall prevention device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A novel oxygen lance fall prevention device includes a mounting frame, a fixed support column is fixedly connected to the lower part of the mounting frame, and a lifting rail is installed on the inner side of the fixed support column. Multiple wedge blocks are fixed at equal intervals in the lifting rail. An oxygen lance lifting vehicle is slidably installed in the lifting rail. The steel wire rope in the electric winch installed on the mounting frame is connected to a spring assembly through a pulley group. Limit forks are hinged on both sides of the spring assembly.
[0007] Preferably, guide rollers are installed at the four corners of the oxygen lance lifting vehicle, and the lifting track has a slide that matches the guide rollers.
[0008] Preferably, multiple wedge blocks are installed at equal intervals within the lifting track, and the surfaces of the multiple sets of wedge blocks are provided with downward inclined surfaces.
[0009] Preferably, a fixed seat is installed at the center of the surface of the limiting fork, and the fixed seat is fixedly connected to the surface frame of the oxygen lance lifting vehicle.
[0010] Preferably, two limiting forks are symmetrically installed on the oxygen lance lifting vehicle body, and the ends of both limiting forks are set as arc surfaces.
[0011] Preferably, the spring assembly includes a mounting column, which is installed inside the lower part of the oxygen lance lifting vehicle body. Two connecting sleeves are symmetrically fitted on the surface of the mounting column. The connecting sleeves are installed inside the moving block, and connecting blocks are fixedly connected to both sides of the moving block. A return spring is welded between the two connecting sleeves.
[0012] Preferably, the movable block is slidably mounted inside the oxygen lance lifting vehicle, and the connecting block is hinged to the limiting fork.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] When the device is operating normally, the drive unit moves the oxygen lance lifting car body up and down via the steel wire rope on the drum. In the event of a breakage of the steel wire rope, the spring assembly installed under the pulley device on the upper part of the oxygen lance lifting car body will open the limit fork. The opened limit fork will then lock onto the wedge block set in the lifting track, thereby achieving the purpose of braking and preventing fall. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the mounting frame and lifting track proposed in this utility model;
[0016] Figure 2 for Figure 1 A three-dimensional schematic diagram of the oxygen lance lifting vehicle body and the limiting fork structure.
[0017] Figure 3 for Figure 1 A schematic diagram of the retracted state of the limiting fork structure in the middle;
[0018] Figure 4 for Figure 1 A schematic diagram of the deployed state of the limit fork structure in the middle;
[0019] Figure 5 for Figure 1 A front view of the connecting sleeve and connecting block structure.
[0020] In the diagram: 1. Mounting frame; 2. Fixed support column; 3. Lifting rail; 4. Wedge block; 5. Oxygen lance lifting vehicle; 6. Pulley block;
[0021] 7. Spring assembly; 71. Mounting post; 72. Connecting sleeve; 73. Moving block; 74. Connecting block; 75. Return spring;
[0022] 8. Limiting fork; 9. Fixing base. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5A novel oxygen lance fall prevention device includes a mounting frame 1, a fixed support column 2 fixedly connected to the lower part of the mounting frame 1, and a lifting rail 3 installed on the inner side of the fixed support column 2. Multiple wedge blocks 4 are fixed at equal intervals in the lifting rail 3. An oxygen lance lifting vehicle 5 is slidably installed in the lifting rail 3. The steel wire rope in the electric winch installed on the mounting frame 1 is connected to the spring assembly 7 through the pulley group 6. Limiting forks 8 are hinged on both sides of the spring assembly 7. By engaging the limiting forks 8 with the multiple wedge blocks 4, the oxygen lance lifting vehicle 5 can be prevented from falling.
[0025] Furthermore, refer to Figure 2 It can be seen that guide rollers are installed at the four corners of the oxygen lance lifting vehicle 5, and the lifting track 3 has a slide that matches the guide rollers. The oxygen lance lifting vehicle 5 can be guided to move up and down through the guide rollers installed at the four corners of the oxygen lance lifting vehicle 5.
[0026] Furthermore, refer to Figure 1 and Figure 3 It can be seen that multiple wedge blocks 4 are installed at equal intervals within the lifting track 3. The installation of multiple wedge blocks 4 can reduce the fall of the oxygen lance lifting vehicle 5. Furthermore, the surfaces of multiple sets of wedge blocks 4 are provided with downward slopes, which can prevent wear.
[0027] Furthermore, refer to Figure 3 and Figure 4 It can be seen that a fixed seat 9 is installed at the center of the surface of the limit fork 8, and the fixed seat 9 is fixedly connected to the surface frame of the oxygen lance lifting vehicle 5. The function of the limit fork 8 can be conveniently installed through the fixed seat 9.
[0028] Furthermore, refer to Figure 3 and Figure 4 It can be seen that there are two limit forks 8 symmetrically installed on the oxygen lance lifting vehicle body 5, and the ends of both limit forks 8 are set as arc surfaces. By symmetrically installing two limit forks 8, the anti-fall effect can be improved. At the same time, the ends of both limit forks 8 are set as arc surfaces to reduce wear.
[0029] Furthermore, refer to Figure 3 and Figure 5 It can be seen that the spring assembly 7 includes a mounting column 71. The mounting column 71 is installed inside the lower part of the oxygen gun lifting vehicle body 5. Two connecting sleeves 72 are symmetrically sleeved on the surface of the mounting column 71. The connecting sleeves 72 are installed in the moving block 73. Connecting blocks 74 are fixedly connected to both sides of the moving block 73. A return spring 75 is welded between the two connecting sleeves 72. The return spring 75 can push the limit fork 8.
[0030] Furthermore, refer to Figure 3 and Figure 5It can be seen that the movable block 73 is slidably installed inside the oxygen lance lifting vehicle body 5, and the connecting block 74 is hinged to the limiting fork 8. By moving the movable block 73, the connecting block 74 can drive one end of the limiting fork 8 to move.
[0031] Working principle: When this utility model is in use, if the oxygen lance lifting vehicle 5 falls, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 When the wire rope breaks between the oxygen lance lifting vehicle body 5 and the wire rope, the spring 75 resets itself by its own elastic force, which can cause the connecting sleeve 72 to move the moving block 73, and cause the connecting block 74 to unfold the two sets of limit forks 8, so that the limit forks 8 can be engaged with the multiple sets of wedge blocks 4, thus preventing the oxygen lance lifting vehicle body 5 from falling.
[0032] The above is the complete working principle of this utility model.
[0033] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0035] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A novel oxygen lance fall protection device, comprising a mounting frame (1), characterized in that, A fixed support column (2) is fixedly connected to the bottom of the mounting frame (1), and a lifting rail (3) is installed on the inner side of the fixed support column (2). Multiple wedge blocks (4) are fixed at equal intervals in the lifting rail (3). An oxygen gun lifting vehicle (5) is slidably installed in the lifting rail (3). The wire rope in the electric winch installed on the mounting frame (1) is connected to the spring assembly (7) through the pulley group (6). Limit forks (8) are hinged on both sides of the spring assembly (7).
2. The novel oxygen lance fall prevention device according to claim 1, characterized in that, Guide rollers are installed at the four corners of the oxygen lance lifting vehicle (5), and the lifting track (3) has a slide that is compatible with the guide rollers.
3. The novel oxygen lance fall prevention device according to claim 1, characterized in that, Multiple wedge blocks (4) are installed at equal intervals in the lifting track (3), and the surfaces of multiple sets of wedge blocks (4) are provided with downward inclined surfaces.
4. The novel oxygen lance fall prevention device according to claim 1, characterized in that, A fixed seat (9) is installed at the center of the surface of the limiting fork (8), and the fixed seat (9) is fixedly connected to the surface frame of the oxygen lance lifting vehicle (5).
5. A novel oxygen lance fall prevention device according to claim 1, characterized in that, Two limit forks (8) are symmetrically installed on the oxygen lance lifting vehicle body (5), and the ends of the two limit forks (8) are both set as arc surfaces.
6. The novel oxygen lance fall prevention device according to claim 1, characterized in that, The spring assembly (7) includes a mounting column (71). The mounting column (71) is installed inside the lower part of the oxygen lance lifting vehicle body (5). Two connecting sleeves (72) are symmetrically sleeved on the surface of the mounting column (71). The connecting sleeves (72) are installed inside the moving block (73). Connecting blocks (74) are fixedly connected to both sides of the moving block (73). A return spring (75) is welded between the two connecting sleeves (72).
7. A novel oxygen lance fall prevention device according to claim 6, characterized in that, The movable block (73) is slidably installed inside the oxygen lance lifting vehicle body (5), and the connecting block (74) is hinged to the limiting fork (8).