CN219408954U

CN219408954U - Auxiliary tool for replacing steel wire rope of oxygen lance

Info

Publication number: CN219408954U
Application number: CN202320355002.7U
Authority: CN
Inventors: 苏晓峰; 王雷; 马青江; 马有强; 张强
Original assignee: Xinji Aosen Steel Group Co Ltd
Current assignee: Xinji Aosen Special Steel Group Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-07-25
Anticipated expiration: 2033-03-01

Abstract

The utility model discloses an auxiliary tool for replacing an oxygen lance steel wire rope, which comprises a hanging ring, a hanging hook hooked on the hanging ring, a hanging strip with the lower end connected to the hanging hook, and a recovery device for recovering the hanging strip; the lifting ring is fixedly connected with the vertical movement trolley above the oxygen lance, and the recovery device is fixedly connected with the translation trolley above the vertical movement trolley. By using the utility model, the shop crown block is not occupied when the steel wire rope of the oxygen lance is replaced, so that the production work in the shop is not interrupted, the time can be effectively utilized in other production works, and the production efficiency of the shop is improved.

Description

Auxiliary tool for replacing steel wire rope of oxygen lance

Technical Field

The utility model relates to the technical field of oxygen lance maintenance devices for steelmaking, in particular to an auxiliary tool for replacing an oxygen lance steel wire rope.

Background

When the converter is used for steelmaking, oxygen needs to be sprayed into the converter through an oxygen lance, and after smelting is finished, the oxygen lance needs to be far away from the converter. The oxygen lance is driven by the vertical moving trolley and the transverse moving trolley to move. The winch on the traversing trolley pulls the vertical moving trolley to vertically move through the steel wire rope, so as to drive the oxygen lance to vertically move. Because the oxygen lance works in the environment with high temperature and dust pollution, the steel wire rope needs to be replaced periodically so as to avoid falling of the oxygen lance caused by sudden fracture of the steel wire rope, for example, the oxygen lance falls into a furnace directly when steelmaking, and molten steel being smelted is scrapped and serious accidents are caused.

At present, when the steel wire rope of the oxygen lance is replaced, the crown block of a workshop is needed to be used for hoisting the vertical movement trolley, and then the steel wire rope of the oxygen lance is replaced. In the process of replacing the steel wire rope, the crown block is required to be occupied all the time, so that the crown block cannot perform other works, the production efficiency is reduced, and the construction period is delayed.

The patent application publication No. CN108754067A discloses a method for replacing a steel wire rope of a converter oxygen lance lifting system, firstly, lifting an oxygen lance trolley to an upper limit position by using an old steel wire rope, marking the position, then disconnecting a coupler originally connecting an oxygen lance main controller and a speed reducer shaft, then, removing the old steel wire rope, installing a new steel wire rope, and finally, re-lifting the oxygen lance trolley to the marked position by using the new steel wire rope. However, it is not disclosed which device is used to hold the lance trolley in the lifted position after the lance trolley is lifted. The patent application with publication number of CN208700268U discloses an auxiliary winding device for replacing a steel wire rope of a crown block, which solves the problem that winding is scattered easily in the replacement of the steel wire rope of the crown block, but does not disclose related devices or scaling for maintaining the lifting state of the trolley because the oxygen lance needs to keep the vertical movement trolley in the lifting state when the steel wire rope is replaced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an auxiliary tool for replacing an oxygen lance steel wire rope, which is used for solving the problem that the steel wire rope of the oxygen lance needs to occupy a shop crown block for a long time when being replaced, and the production of the shop is affected.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an auxiliary tool for replacing an oxygen lance steel wire rope comprises a hanging ring, a hanging hook hooked on the hanging ring, a hanging strip with the lower end fixedly connected to the hanging hook and a recovery device for recovering the hanging strip; the lifting ring is fixedly connected with the vertical movement trolley above the oxygen lance, and the recovery device is fixedly connected with the translation trolley above the vertical movement trolley.

Further, the recovery device comprises a closed box body fixedly connected with the translation trolley, a horizontal shaft fixedly arranged in the center of the box body, a reel rotatably connected to the shaft and a coil spring arranged between the reel and the shaft; one end of the coil spring is fixedly connected with the shaft, the other end of the coil spring is fixedly connected with the reel, when the hanging strip is retracted into the box body, the hanging strip winds the reel, one end of the hanging strip, which is far away from the lifting hook, is fixedly connected with the reel, and a hole for the hanging strip to pass through is formed in the bottom of the box body.

Further, the lifting hook comprises a vertical hook frame and a hook body arranged at the lower part of the hook frame, the top end of the hook frame is fixedly connected with the hanging belt, and the lower end of the hook frame is rotationally connected with the middle part of the hook body; when the hook body is in a free state, the lower part of the hook body is a hook-shaped lifting part, the upper part of the hook body is an inclined unhooking part, and the hook tip of the lifting part and the hook tail of the unhooking part are positioned on the same side of the hook frame.

Further, the hanging ring is shaped like a door and is arranged between two pulleys on the vertical moving trolley.

Further, the hanging ring, the hanging strip and the recovery device are symmetrically arranged on two sides of the vertical movement trolley, and the two hanging strips are equal in length.

Further, after the hanging strip is wound on the reel, the top end of the hanging bracket abuts against the lower surface of the box body.

Further, the lifting hook is in a hook shape, and the gravity center of the lifting hook is lower than that of the hook frame.

The utility model has the positive effects that:

1. the utility model is provided with the hanging ring, the hanging hook, the hanging belt and the recovery device, and by using the utility model, the shop crown block is not occupied when the steel wire rope of the oxygen lance is replaced, thus the production work in the shop is not interrupted, the time can be effectively utilized in other production works, and the production efficiency of the shop is improved.

2. The recovery device is provided with a box body, a shaft, a coil spring and a reel, and the sling is wound on the reel at ordinary times and pulled out when the steel wire rope is replaced, so that the influence of the sling on normal work is avoided when the oxygen lance works.

3. The lifting hook comprises a hook body and a hook frame, wherein the hook body is in a butt hook shape, the middle part of the hook body is rotationally connected with the lower part of the hook frame, the lower part of the hook body is a hook-shaped lifting part, the upper part of the hook body is an inclined unhooking part, and the hook tip of the lifting part and the hook tail of the unhooking part are positioned on the same side of the hook frame. The hanging and separating of the lifting hook and the lifting ring do not need manual ascending operation, and the hanging and separating device does not need manual direct participation, so that the risk of operation in the hooking and unhooking processes is avoided, and the injury to operators in the hooking and unhooking processes is avoided.

Drawings

FIG. 1 is a use diagram of example 1 and example 2;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of the structure of the interior of the recovery device when the sling is wound up into the recovery device;

FIG. 4 is a partial enlarged view of the portion I of FIG. 2 in example 2;

FIG. 5 is a schematic view of embodiments 2 and 3 prior to entry of the bail into the hook;

FIG. 6 is a schematic view of embodiments 2 and 3 before the lifting ring is disengaged from the hook;

FIG. 7 is a schematic view of embodiments 2 and 3 with the bail detached from the hook;

in the figure:

1. an oxygen lance; 2. a vertical movement trolley; 3. a pulley; 4. a hanging ring; 5. a wire rope; 6. a lifting hook; 7. a cross beam; 8. a track; 9. a translation trolley; 10. a hoist; 11. a recovery device; 12. a hanging belt; 13. a hook frame; 14. a hook body; 15. a case; 16. a reel; 17. a shaft; 18. a coil spring.

Detailed Description

As shown in fig. 1, the upper part of the oxygen lance 1 is connected with a vertical movement trolley 2, the top of the vertical movement trolley is provided with two pulleys 3, a cross beam 7 is arranged above the vertical movement trolley 2, a track 8 is paved on the cross beam 7, a translation trolley 9 capable of transversely moving is arranged on the track 8, and a winch 10 is arranged on the translation trolley 9. The two pulleys 3 are respectively wound with one steel wire rope 5, and the winch 10 drives the two steel wire ropes 5 to enable the vertical movement trolley 2 to move up and down so as to drive the oxygen lance 1 to ascend or descend.

Example 1

As shown in fig. 1, 2 and 3, an auxiliary tool for replacing a wire rope of an oxygen lance includes a pair of door-shaped hanging rings 4 welded to both sides of a vertically movable trolley 2, respectively, and a hook 6 hooked on each hanging ring 4. The top of rings 4 is higher than pulley 3, and the upper end of every lifting hook 6 all fixedly connected with suspender 12, and two suspenders 12 are equal long, and the recovery unit 11 that is used for retrieving suspender 12 is all fixedly provided with below translation dolly 9 in the top of every lifting hook 6.

Each recovery device 11 comprises a closed rectangular box 15 fixedly connected with the bottom surface of the translation trolley 9 by screws, a horizontal shaft 17 fixedly arranged in the center of the box 15, a reel 16 rotatably connected to the shaft 17, and a coil spring 18 arranged between the reel 16 and the shaft 17. One end of the coil spring 18 is fixedly connected with the shaft 17, the other end of the coil spring is fixedly connected with the reel 16, when the hanging strip 12 is retracted into the box body 15, the hanging strip 12 is wound on the reel 16, one end, far away from the lifting hook 6, of the hanging strip 12 is fixedly connected with the reel 16, and a hole for enabling the hanging strip 12 to pass through is formed in the bottom of the box body 15.

The working process of the utility model is as follows:

when the wire rope 5 needs to be replaced, the hook 6 is pulled first, and the hanging strip 12 is pulled out of the recovery device 11. The hooks 6 are then hooked on the corresponding suspension loops 4, respectively. The hoist 10 is then operated to move the vertical movement cart 2 downward until all of the remaining slings 12 in the recovery device 11 are pulled out. The hoist 10 then continues to run, at which time the wire rope 5 is loosened, the weight of the vertical movement trolley 2 and the oxygen lance 1 are all applied to the two slings 12, the wire rope 5 no longer bears the weight of the vertical movement trolley 2 and the oxygen lance 1, and then the wire rope 5 is replaced.

After the steel wire ropes 5 are replaced, the winding machine 10 operates to enable the vertical movement trolley 2 to move upwards, further enable the two steel wire ropes 5 to be tensioned, then the two lifting hooks 6 are taken off, and the two winding drums 16 rotate under the driving of the two coil springs 18, so that the two hanging strips 12 are wound on the two winding drums 16 respectively.

When the steel wire rope 5 is replaced by the crown block in cooperation before the utility model is adopted, about three hours are needed, and the workshop production work is not interrupted by using the utility model, so that the three-hour occupation time of the crown block can be reduced when the steel wire rope 5 is replaced each time, the time can be effectively utilized to other production works, and the workshop production efficiency is improved.

Example 2

As shown in fig. 4, this embodiment is different from embodiment 1 in that:

the lifting hook 6 comprises a vertical hook frame 13 and a hook body 14 arranged at the lower part of the hook frame 13. The lower part of the hook frame 13 is shaped like a gate, and the hook body 14 is shaped like a hook. The top end of the hook frame 13 is fixedly connected with the lower end of the hanging belt 12, the middle part of the hook body 14 is positioned in the lower part of the hook frame 13, and the middle part of the hook body 14 is rotatably connected with the lower part of the hook frame 13.

Taking one of the hooks 6 as an example, as shown in fig. 3, when the hook body 14 is in a free state (i.e. after the hook body 14 is separated from the hanging ring 4), the lower portion of the hook body 14 is a hook-shaped lifting portion, the upper portion is an unhooking portion inclined from top left to bottom right, the hook tip of the lifting portion and the hook tail of the unhooking portion are both located at the left side of the hook frame 13, and the gravity center of the hook 6 is lower than that of the hook frame 13.

During normal use of the oxygen lance 1, the hanging strip 12 is wound into the box body 1, and the upper end of the hook frame 13 abuts against the lower surface of the box bottom 15.

When the wire rope 5 needs to be replaced, first, the hoist 10 drives the vertically movable trolley 2 and the hoisting ring 4 to move upward to a position shown in fig. 5, in which the hoisting hook 4 is located at a position to the left below the hook frame 13. Then the lifting ring 4 continues to move upwards, the lifting ring 4 pushes the lifting part to the right, the hook body 14 rotates anticlockwise, after the top of the lifting ring 4 exceeds the hook tip, the top of the lifting ring 4 is separated from the hook tip, the top of the lifting ring 4 enters between the hook tail and the hook tip, and the hook body 14 rotates clockwise under the action of gravity to restore to the original position. Then the winch 10 drives the vertical movement trolley 2 and the lifting ring to move downwards, and the top of the lifting ring 4 enters the lifting part of the lifting hook 14, so that the lifting hook 14 hooks the lifting ring 4.

Then the winch 10 continues to rotate to drive the vertical movement trolley 2 to move downwards until the hanging strip 12 is pulled out completely, the winch 10 continues to rotate to loosen the steel wire rope 5, and the weights of the vertical movement trolley 2 and the oxygen lance 1 are applied to the hanging strip 12 through the hanging hook 6.

After the steel wire rope 5 is replaced, the winch 10 drives the vertical movement trolley 2 to move upwards by pulling the steel wire rope 5, and the hanging belt 12 is retracted into the box body 15 until the upper end of the hook frame 13 abuts against the lower surface of the box body 15, and the hook frame 13 stops rising. The hoist 10 continues to drive the vertical movement trolley 2 to move upwards, the top of the lifting ring 4 pushes the unhooking part of the hook body 14, so that the hook body 14 rotates clockwise, and then the position shown in fig. 6 is reached, and the top of the lifting ring 4 is higher than the unhooking part of the hook body 14. Then the hoist 10 drives the lifting ring 4 to move downwards, and the lifting ring 4 pulls the hook body 14, so that the hook body 14 rotates anticlockwise to the position shown in fig. 7, and the hook body 14 is separated from the lifting ring 4.

Therefore, in this embodiment, the hooking and separating of the hook 6 and the hanging ring 4 do not need to be manually lifted, and the risk of operation in the hooking and unhooking processes is avoided, and the injury to operators in the hooking and unhooking processes is avoided.

Example 3

As shown in fig. 5 to 7, the present embodiment is different from embodiment 2 in that:

the bottom surface of the hook frame 13 is an inclined surface which is consistent with the unhooking direction. When unhooking is needed, even if the lifting hook 6 is positioned below the hook frame 13, the lifting hook 4 can push the hook frame 13 through the inclined plane, so that the upper part of the lifting ring 4 enters above the unhooking part of the hook body 14, and the hook body 14 is normally separated from the lifting ring 4.

The foregoing description of the embodiments of the present utility model has been presented only to illustrate the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the present utility model and to implement it, but not to limit the scope of the present utility model only by the present embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model disclosed herein, and it is intended for those skilled in the art to make local improvements in the system and changes, variations between subsystems, etc. within the scope of the present utility model without departing from the structure of the present utility model. At present, the technical scheme of the application has been subjected to pilot-scale experiments, namely small-scale experiments of products before large-scale mass production; after the pilot test is completed, the use investigation of the user is performed in a small range, and the investigation result shows that the user satisfaction is higher; now, the industrialization of the formal production of the product is prepared, including the early warning investigation of intellectual property risks.

Claims

1. An auxiliary tool for replacing an oxygen lance steel wire rope is characterized by comprising a hanging ring (4), a hanging hook (6) hooked on the hanging ring (4), a hanging belt (12) with the lower end fixedly connected to the hanging hook (6) and a recovery device (11) for recovering the hanging belt (12); the lifting ring (4) is fixedly connected with the vertical movement trolley (2) above the oxygen lance (1), and the recovery device (11) is fixedly connected with the translation trolley (9) above the vertical movement trolley (2).

2. An auxiliary tool for replacing oxygen lance wire according to claim 1, characterized in that the recovery device (11) comprises a closed box (15) fixedly connected to the translation trolley (9), a horizontal shaft (17) fixedly arranged in the centre of the box (15), a reel (16) rotatably connected to the shaft (17) and a coil spring (18) arranged between the reel (16) and the shaft (17); one end of the coil spring (18) is fixedly connected with the shaft (17), the other end of the coil spring is fixedly connected with the reel (16), when the hanging strip (12) is retracted into the box body (15), the hanging strip (12) is wound on the reel (16), one end, far away from the lifting hook (6), of the hanging strip (12) is fixedly connected with the reel (16), and a hole for allowing the hanging strip (12) to pass through is formed in the bottom of the box body (15).

3. An auxiliary tool for replacing an oxygen lance steel wire rope according to claim 1, wherein the lifting hook (6) comprises a vertical hook frame (13) and a hook body (14) arranged at the lower part of the hook frame (13), the top end of the hook frame (13) is fixedly connected with the hanging strip (12), and the lower end of the hook frame (13) is rotatably connected with the middle part of the hook body (14); when the hook body (14) is in a free state, the lower part of the hook body (14) is a hook-shaped lifting part, the upper part of the hook body is an inclined unhooking part, and the hook tip of the lifting part and the hook tail of the unhooking part are positioned on the same side of the hook frame (13).

4. An auxiliary tool for replacing an oxygen lance wire as claimed in claim 1, wherein the lifting ring (4) is shaped like a gate and is arranged between two pulleys (3) on the vertical movement trolley (2).

5. An auxiliary tool for replacing an oxygen lance steel wire according to claim 1, characterized in that the hanging ring (4), the hanging belt (12) and the recovery device (11) are symmetrically arranged at two sides of the vertical movement trolley (2), and the two hanging belts (12) are equal in length.

6. An auxiliary tool for replacing an oxygen lance wire as claimed in claim 2, wherein the top end of the hook (6) abuts under the box (15) after the sling (12) is wound up onto the reel (16).

7. An auxiliary tool for replacing an oxygen lance wire according to claim 3, characterized in that the hooks (6) are of a butt-hook shape, and the centre of gravity of the hooks (6) is lower than the hook frame (13).