Oxygen lance adjusting seat for oxygen lance trolley

Abstract

The utility model relates to the technical field of converter steelmaking, in particular to an oxygen lance adjusting seat for an oxygen lance trolley. The oxygen lance adjusting base is located between a supporting table of an oxygen lance trolley and an oxygen lance platform of a converter oxygen lance, the oxygen lance adjusting base is fixedly connected with the oxygen lance platform, and a plurality of angle fixing bolts, a universal rotating mechanism and fixing bolts are arranged between the oxygen lance adjusting base and the supporting table. The angle fixing bolt is provided with a bolt hinged to the supporting table and a U-shaped groove correspondingly formed in the oxygen lance adjusting base, the bolt is in clearance fit with the U-shaped groove, and the angle between the oxygen lance adjusting base and the supporting table is adjusted by means of the universal rotating mechanism within the range of the clearance between the bolt and the U-shaped groove. And then the angle fixing bolt and the fixing bolt are screwed down for fixation. According to the utility model, the service life of the oxygen lance can be prolonged, the overhaul times of the oxygen lance are reduced, the labor cost is saved, the steelmaking production efficiency is improved, the processing and manufacturing difficulty of the converter oxygen lance and the oxygen lance trolley can be reduced, and the error-tolerant rate is improved.

Description

Technical Field

[0001] This utility model relates to the field of converter steelmaking technology, specifically to an oxygen lance adjustment seat for an oxygen lance trolley. Background Technology

[0002] In steelmaking, steel plants commonly use oxygen lances in conjunction with oxygen lance carriages to blow high-pressure oxygen into the converter for smelting. Relying on a drive device such as a winch, the oxygen lance carriage is controlled to move the oxygen lance vertically above the converter, realizing the functions and purposes of removing, raising, and changing the position of the lance for maintenance during steelmaking.

[0003] Currently, oxygen lance carriages generally use flanges and bolts to fix the converter oxygen lance to the carriage. However, due to dimensional errors in the manufacturing of the converter oxygen lance and the oxygen lance carriage, the two cannot be fixed together by flanges and bolts. Even if they can be fixed, the oxygen lance nozzle cannot be perpendicular to the molten iron surface in the converter, thus affecting the blowing effect. Furthermore, due to aging or wear during long-term use, the converter oxygen lance may also develop an angular deviation from the molten iron surface in the converter. In this case, the converter oxygen lance needs to be completely removed from the oxygen lance carriage before maintenance, which is inefficient, time-consuming, and labor-intensive. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an oxygen lance adjustment seat that can be installed between the oxygen lance trolley and the converter oxygen lance and can appropriately adjust the angle of the converter oxygen lance.

[0005] The technical solution adopted by this utility model is: an oxygen lance adjustment seat for an oxygen lance trolley, wherein the oxygen lance adjustment seat is located between the support platform of the oxygen lance trolley and the oxygen lance platform of the converter oxygen lance, the oxygen lance adjustment seat is fixedly connected to the oxygen lance platform, and a universal rotation mechanism and multiple angle fixing bolts are provided between the oxygen lance adjustment seat and the support platform.

[0006] The angle fixing bolt includes: a base fixedly mounted on a support platform; one end of the bolt is hinged to the base via a pin; a U-shaped groove with its center line perpendicular to the axis of the pin is provided on the oxygen lance adjusting seat; the other end of the bolt passes through the U-shaped groove, and the bolt and the U-shaped groove are clearance-fitted; a nut with its threaded engagement is provided at the end of the bolt passing through the U-shaped groove, and the diameter of the nut is larger than the width of the U-shaped groove; multiple fixing bolts are also provided between the oxygen lance adjusting seat and the support platform; the fixing bolts pass through the oxygen lance adjusting seat and are supported on the support platform; fixing nuts with their threaded connections are provided on the fixing bolts; the fixing nuts are located at the bottom of the oxygen lance adjusting seat.

[0007] Furthermore, the universal rotation mechanism includes: a universal ball fixedly disposed at the bottom of the oxygen lance adjustment seat and a universal base fixedly disposed on the support platform. The universal ball has a hemispherical structure, and the universal base is provided with a groove that can be embedded in the universal ball.

[0008] Furthermore, the groove of the universal base extends to form a slide rail;

[0009] Furthermore, a fixing pin is fixedly provided at one end of the oxygen lance adjusting seat, and the fixing pin is inserted into one end of the lever. The axis of the lever is parallel to the slide rail. The other end of the lever is fixedly connected to the lead screw of the lead screw transmission mechanism. The lead screw nut that matches the lead screw is rotatably fixed in the first support. The first support is fixed on the support platform. The lead screw nut is fixedly connected to the handwheel.

[0010] A second support fixed on the support platform is provided at the other end of the oxygen lance adjustment seat. The second support is provided with a locking bolt that is threadedly engaged with it. The locking bolt is coaxially arranged with the lever.

[0011] Furthermore, the oxygen lance adjustment seat and the oxygen lance platform are fixed by bolt connection;

[0012] Furthermore, the oxygen lance adjustment seat and the oxygen lance platform are fixed by angle fixing bolts and support blocks, wherein the base of the angle fixing bolts is fixedly set on the oxygen lance adjustment seat, and the oxygen lance platform is correspondingly provided with a U-shaped groove.

[0013] The support block is set between the oxygen lance adjustment seat and the oxygen lance platform, and has a two-section structure. One section is fixedly connected to the oxygen lance platform, and the other section is set accordingly and fixedly connected to the oxygen lance adjustment seat.

[0014] Furthermore, the plurality of fixing bolts are arranged symmetrically relative to the universal rotation mechanism;

[0015] Furthermore, the oxygen lance adjustment seat is provided with a boss located in the middle and a wing plate extending outward from the bottom of the boss;

[0016] The beneficial effects of this utility model are:

[0017] This invention can improve the service life of oxygen lances, reduce the number of major overhauls of oxygen lances, thereby saving labor costs, improving steelmaking production efficiency, and can correct deviations in oxygen lance carriages and oxygen lances during use or manufacturing, thereby improving the fault tolerance rate of oxygen lances and oxygen lance carriages in terms of coordination and use, and reducing processing difficulty. Attached Figure Description

[0018] Figure 1 This is a front view of the structure of an oxygen lance adjustment seat for an oxygen lance cart according to the present invention;

[0019] Figure 2This is a side view of the structure of an oxygen lance adjustment seat for an oxygen lance cart according to the present invention;

[0020] Figure 3 This is a top view of the structure of an oxygen lance adjustment seat for an oxygen lance cart according to the present invention;

[0021] In the diagram: 1. Cart body; 2. Support platform; 3. Pulley; 4. Guide wheel; 5. Oxygen lance notch; 6. First interface; 7. Water supply pipe; 8. Water return pipe; 9. Oxygen supply pipe; 10. Oxygen lance platform; 11. Oxygen lance adjustment seat; 12. Second interface; 13. Universal ball; 14. Universal base; 15. Notch; 16. Base; 17. Pin; 18. Bolt; 19. U-groove; 20. Nut; 21. Fixing bolt; 22. Fixing nut; 23. Support block; 24. Wing plate; 25. Locking bolt; 26. Handwheel; 27. First support; 28. Fixing pin; 29. ​​Lever; 30. Second support. Detailed Implementation

[0022] The technical solutions adopted by this utility model will be clearly and completely explained and described below with reference to the accompanying drawings and embodiments.

[0023] The oxygen lance adjusting seat 11 provided by this utility model is used to fix the converter oxygen lance on the oxygen lance carriage. The converter oxygen lance and oxygen lance carriage are existing structures. In this embodiment, as shown... Figure 1 As shown, the oxygen lance trolley includes a trolley body 1 and a support platform 2 fixed on the trolley body 1.

[0024] like Figure 2 As shown, a pair of rotatable pulleys 3 are fixedly installed inside the trolley body 1. By cooperating with the drive device above the converter platform, such as a winch and wire rope, the oxygen lance trolley can move longitudinally above the converter platform. Multiple guide wheels 4 can also be installed on the trolley body 1. By cooperating with the guide rail set between the winch and the converter platform, they provide guidance when the oxygen lance trolley moves longitudinally.

[0025] The support platform 2 is provided with an oxygen lance notch 5 and multiple first interfaces 6. The oxygen lance notch 5 is clearance-fitted with the converter oxygen lance and is used to insert the converter oxygen lance so that the oxygen lance nozzle of the converter oxygen lance can be aligned with the converter. One end of the multiple first interfaces 6 is used to connect to the water supply pipe 7, the return water pipe 8, and the oxygen supply pipe 9 of the converter oxygen lance, and the other end is used to connect to the external water supply equipment and oxygen supply equipment through pipelines to provide cooling water and oxygen to the converter oxygen lance.

[0026] The converter oxygen lance is equipped with an oxygen lance platform 10. The oxygen lance platform 10 is used to fix the water supply pipe 7, return water pipe 8, and oxygen supply pipe 9 of the converter oxygen lance. The water supply pipe 7, return water pipe 8, and oxygen supply pipe 9 on the oxygen lance platform 10 can be connected to one end of the first interface 6 on the support platform 2 by means of flange and bolt connection. The other end of the first interface 6 can also be connected to the external water and oxygen supply equipment through pipeline by means of flange and bolt connection to provide cooling water and oxygen to the converter oxygen lance.

[0027] When the converter oxygen lance is inserted into the oxygen lance notch 5 on the support platform 2, the oxygen lance platform 10 can be locked onto the support platform 2, thus fixing the converter oxygen lance and the oxygen lance trolley.

[0028] like Figure 1 As shown, this utility model sets the oxygen lance adjustment seat 11 between the support platform 2 and the oxygen lance platform 10. The oxygen lance adjustment seat 11 is fixedly connected to the oxygen lance platform 10. A universal rotation mechanism is provided between the oxygen lance adjustment seat 11 and the support platform 2. The universal rotation mechanism is used to adjust the relative angle between the oxygen lance adjustment seat 11 and the support platform 2. By fixing the oxygen lance adjustment seat 11 to the oxygen lance platform 10, the angle of the converter oxygen lance inserted into the oxygen lance notch 5 is adjusted.

[0029] Specifically, in this embodiment, the oxygen lance adjustment base 11 is provided with multiple second interfaces 12, such as... Figure 2 As shown, the second interface 12 is used to connect multiple first interfaces 6 on the oxygen lance trolley support platform 2 and the water supply pipe 7, return water pipe 8, and oxygen supply pipe 9 on the converter oxygen lance platform 10.

[0030] Since the oxygen lance adjustment seat 11 needs to adjust the angle of the converter oxygen lance appropriately on the support platform 2 of the oxygen lance trolley, the second interface 12 is connected to the first interface 6, water supply pipe 7, water return pipe 8, and oxygen supply pipe 9 by using a flexible hose and flange.

[0031] The oxygen lance adjusting seat 11 is also provided with a notch 15 that matches the oxygen lance notch 5, so as to facilitate the quick installation of the converter oxygen lance.

[0032] In this embodiment, the universal rotation mechanism includes: a universal ball 13 fixedly disposed at the bottom of the oxygen lance adjustment seat 11 and a universal base 14 fixedly disposed on the support platform 2. The universal ball 13 is a hemispherical structure, and the universal base 14 is provided with a groove that matches the outer surface of the universal ball 13, so that the universal ball 13 can be rotatably embedded in the groove, thereby driving the oxygen lance adjustment seat 11 to rotate relative to the support platform 2 at a certain angle in any direction. The oxygen lance platform 10 fixedly connected to the oxygen lance adjustment seat 11 drives the entire converter oxygen lance to rotate within the oxygen lance notch 5 of the oxygen lance carriage support platform 2.

[0033] Multiple angle fixing bolts are also provided between the oxygen lance adjusting seat 11 and the support platform 2 to fix the oxygen lance adjusting seat 11 and the support platform 2 after the angle is adjusted. The multiple angle fixing bolts are preferably evenly arranged around the oxygen lance adjusting seat 11 and the support platform 2 to facilitate installation and connection.

[0034] In this embodiment, the angle fixing bolt includes: a base 16 fixedly mounted on the support platform 2, and one end of a bolt 18 hinged to the base 16 via a pin 17, so that the bolt 18 can rotate around the pin 17 inside the base 16. Figure 3 As shown, the oxygen lance adjusting seat 11 is provided with a U-shaped groove 19 whose center line is perpendicular to the axis of the pin 17. The other end of the bolt 18 passes through the U-shaped groove 19 and the two are fitted with a clearance. The end of the bolt 18 that passes through the U-shaped groove 19 is provided with a nut 20 that is threaded with it. The diameter of the nut 20 is larger than the width of the U-shaped groove 19.

[0035] In addition, a plurality of fixing bolts 21 for support are provided between the oxygen lance adjusting seat 11 and the support platform 2. The fixing bolts 21 are preferably arranged symmetrically relative to the universal rotation mechanism. The fixing bolts 21 pass through the oxygen lance adjusting seat 11 and are supported on the support platform 2. The fixing bolts 21 are provided with fixing nuts 22 that are threadedly connected to them. The fixing nuts 22 are located at the bottom of the oxygen lance adjusting seat 11 and are used to support the oxygen lance adjusting seat 11.

[0036] This invention utilizes the gap between bolt 18 and U-shaped groove 19 to appropriately adjust the angle of the converter oxygen lance. Specifically, before adjusting the angle between the support platform 2 and the oxygen lance adjusting seat 11 using the universal rotation mechanism, bolt 18 is rotated within the base 16 to insert one end of bolt 18 into the U-shaped groove 19. At this time, the nut 20, which is threaded into it, is not tightened, and similarly, the fixing nut 22 on the fixing bolt 21 is also not tightened. Because there is a gap between bolt 18 and U-shaped groove 19, the universal rotation mechanism can be used to adjust the angle between bolt 18 and U-shaped groove 19. Within the range of the gap between the slots 19, the angle between the oxygen lance adjusting seat 11 and the support platform 2 can be adjusted. Since the oxygen lance adjusting seat 11 is fixedly connected to the oxygen lance platform 10 of the converter oxygen lance, the purpose of adjusting the angle of the converter oxygen lance within the oxygen lance notch 5 can be achieved. Although the angle between the oxygen lance adjusting seat 11 and the support platform 2 can be adjusted by the size of the gap between the bolt 18 and the U-shaped slot 19 is limited, for the actual size of the converter oxygen lance, when a small angle adjustment is applied to the converter oxygen lance within the oxygen lance notch 5, the distance it moves is sufficient to meet the adjustment requirements.

[0037] After adjustment, tighten nut 20 to lock it onto U-groove 19. Simultaneously, tighten fixing nut 22 to press against the bottom of oxygen lance adjusting seat 11. Figure 1As shown, the oxygen lance adjusting seat 11 is supported in both directions by the nut 20 and the fixing nut 22, that is, the adjusted oxygen lance adjusting seat 11 is fixed to the support platform 2.

[0038] Furthermore, the oxygen lance adjusting seat 11 and the oxygen lance platform 10 can be fixed by bolt connection. For example, multiple threaded holes are provided in the oxygen lance adjusting seat 11, and multiple bolts are correspondingly provided on the oxygen lance platform 10. The fixed connection between the oxygen lance adjusting seat 11 and the oxygen lance platform 10 is achieved by the cooperation of the bolts and the threaded holes.

[0039] The oxygen lance adjusting seat 11 and the oxygen lance platform 10 can also be implemented using the aforementioned angle fixing bolts and support blocks 23. Specifically, the base 16 of the angle fixing bolts can be fixedly mounted on the oxygen lance adjusting seat 11, and the oxygen lance platform 10 is correspondingly provided with a U-shaped groove 19. The support block 23 is located between the oxygen lance adjusting seat 11 and the oxygen lance platform 10, and has a two-section structure. One section is fixedly connected to the oxygen lance platform 10, and the other section is correspondingly provided and fixedly connected to the oxygen lance adjusting seat 11. That is, the oxygen lance platform 10 is bidirectionally supported by the nut 20 and the support block 23, thus fixing the oxygen lance adjusting seat 11 and the oxygen lance platform 10.

[0040] Preferably, the oxygen lance adjustment seat 11 has a boss located in the middle and a wing plate 24 extending outward from the bottom of the boss, and the wing plate 24 facilitates the installation of angle fixing bolts.

[0041] In addition, as a preferred technical solution, the universal base 14 can be extended along the direction in which the converter oxygen lance is inserted into the oxygen lance notch 5, so that the groove on the universal base 14 forms a slide, and the oxygen lance adjusting seat 11 can be driven to slide along the slide by the universal ball 13, so as to realize the movement of the converter oxygen lance within the oxygen lance notch 5.

[0042] Furthermore, in this utility model, a fixing pin 28 is fixedly provided at one end of the oxygen lance adjusting seat 11. The fixing pin 28 is inserted into one end of the lever 29. The axis of the lever 29 is parallel to the slide rail. The other end of the lever 29 is fixedly connected to the lead screw of the lead screw transmission mechanism. The lead screw nut that matches the lead screw is rotatably fixed in the first support 27. The first support 27 is fixed on the support platform 2. The lead screw nut is also fixedly connected to the handwheel 26.

[0043] The other end of the oxygen lance adjustment seat 11 is provided with a second support 30 fixed on the support platform 2. The second support 30 is provided with a locking bolt 25 that is threadedly engaged with it. The locking bolt 25 is coaxially arranged with the lever 29.

[0044] The handwheel 26 can be turned to rotate the screw nut, which in turn drives the screw rod to move the lever 29 and the fixing pin 28, thus moving the entire oxygen lance adjustment seat 11 along the slide. This allows the converter oxygen lance to move within the oxygen lance notch 5, adjusting the relative position between the converter oxygen lance nozzle and the converter liquid surface. Once in position, the locking bolt 25 inside the second support 30 is tightened to make it rest against the side wall of the oxygen lance adjustment seat 11 and fix it in place.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and design concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oxygen lance adjusting seat for an oxygen lance trolley, the oxygen lance adjusting seat (11) being located between a support table (2) of the oxygen lance trolley and an oxygen lance platform (10) of a converter oxygen lance, the oxygen lance adjusting seat (11) being fixedly connected with the oxygen lance platform (10), and a universal rotating mechanism and a plurality of angle fixing bolts being provided between the oxygen lance adjusting seat (11) and the support table (2). characterized in that The angle fixing bolt comprises a base (16) fixedly arranged on the support table (2), one end of a hinge bolt (18) being hingedly connected in the base (16) through a pin shaft (17), a U-shaped groove (19) corresponding to the oxygen lance adjusting seat (11) being provided on the oxygen lance adjusting seat (11) and being perpendicular to the axis of the pin shaft (17), the other end of the hinge bolt (18) penetrating the U-shaped groove (19) and being in clearance fit with the U-shaped groove (19), and a nut (20) being threadedly connected with the end of the hinge bolt (18) penetrating the U-shaped groove (19) and having a diameter greater than the width of the U-shaped groove (19). A plurality of fixing bolts (21) are further provided between the oxygen lance adjusting seat (11) and the support table (2), the fixing bolts (21) penetrating the oxygen lance adjusting seat (11) and being supported on the support table (2), a fixing nut (22) being threadedly connected with the fixing bolt (21), and the fixing nut (22) being located at the bottom of the oxygen lance adjusting seat (11).

2. The lance adjustment seat for a lance cart according to claim 1, characterized in that The universal rotating mechanism comprises a universal ball (13) fixedly arranged at the bottom of the oxygen lance adjusting seat (11) and a universal base (14) fixedly arranged on the support table (2), the universal ball (13) being in a semispherical structure, and the universal base (14) being provided with a groove capable of embedding the universal ball (13).

3. The lance adjustment seat for a lance cart according to claim 2, characterized in that The groove of the universal base (14) extends to form a slide.

4. The lance adjustment seat for a lance cart according to claim 3, characterized in that One end of the oxygen lance adjusting seat (11) is fixedly arranged with a fixing pin (28), the fixing pin (28) being inserted into one end of a push rod (29), the axis of the push rod (29) being parallel to the slide, the other end of the push rod (29) being fixedly connected with a lead screw of a lead screw transmission mechanism, a lead nut matched with the lead screw being rotatably fixed in a first support (27), the first support (27) being fixed on the support table (2), and the lead nut being fixedly connected with a hand wheel (26). The other end of the oxygen lance adjusting seat (11) is provided with a second support (30) fixed on the support table (2), the second support (30) being provided with a locking bolt (25) threadedly connected therewith, and the locking bolt (25) being coaxially arranged with the push rod (29).

5. The lance adjustment seat for a lance cart according to claim 1, wherein The oxygen lance adjusting seat (11) and the oxygen lance platform (10) are fixedly connected in a bolt connection mode.

6. The lance adjustment seat for a lance cart according to claim 1, wherein The oxygen lance adjusting seat (11) and the oxygen lance platform (10) are fixedly connected in an angle fixing bolt and support block (23) connection mode, the base (16) of the angle fixing bolt being fixedly arranged on the oxygen lance adjusting seat (11), and the oxygen lance platform (10) being provided with the U-shaped groove (19). The support block (23) is arranged between the oxygen lance adjusting seat (11) and the oxygen lance platform (10), and has a two-section structure, one section being fixedly connected with the oxygen lance platform (10), and the other section being correspondingly arranged and fixedly connected with the oxygen lance adjusting seat (11).

7. The lance adjustment seat for a lance cart according to claim 1, wherein The plurality of fixed bolts (21) are symmetrically arranged relative to the universal rotation mechanism.

8. A lance adjustment seat for a lance cart according to any one of claims 1 to 7, characterized in that The oxygen lance adjusting seat (11) is provided with a middle boss and a wing plate (24) extending outward at the bottom of the boss.

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