CN216838053U

CN216838053U - Mechanical external oxygen lance anti-falling device with good braking effect

Info

Publication number: CN216838053U
Application number: CN202220311172.0U
Authority: CN
Inventors: 黄杰; 黄漂; 黄哲; 王世涛
Original assignee: Wuhan Dingfengda Mechanical Equipment Co ltd
Current assignee: Wuhan Dingfengda Mechanical Equipment Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-06-28
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses an external oxygen rifle anti-falling device of machinery that braking effect is good, including external frame, external frame inner wall both sides all are equipped with the recess, evenly be equipped with a plurality of limiting plate under from the top in the recess, the inside oxygen rifle dolly that is equipped with of external frame, wire rope and external frame connection are passed through at the top of oxygen rifle dolly, the interior bottom of oxygen rifle dolly is equipped with the spring assembly, the top of spring assembly is equipped with the assembly pulley, the top of assembly pulley with wire rope's end connection. Has the advantages that: during normal production, this device can not take place the effect, just can use under the wire rope fracture condition, through the gravity that the decline produced and the dual effort of motion inertia as power, does not have the mechanical wear that daily operation caused, as long as the debugging back alright be in standby state, and no difficult point of use, no running mechanism alright accomplish and use, the cost is limited, does not have other follow-up costs.

Description

Mechanical external oxygen lance anti-falling device with good braking effect

Technical Field

The utility model relates to a converter steelmaking technical field particularly, relates to an external oxygen rifle anti-falling device of machinery that braking effect is good.

Background

In the converter steelmaking process, the position of the oxygen lance in the converter and the ascending or descending of the oxygen lance are one of the factors for determining the smelting quality and reducing the consumption. In the smelting process of the converter, the oxygen lance needs to frequently enter the converter to smelt molten iron, a transmission mechanism for driving the oxygen lance to ascend or descend is difficult to avoid failure due to long-term up-and-down operation, and particularly, a steel wire rope directly connected with the oxygen lance is easy to break when operating in a long-term high-temperature environment. After the steel wire rope is broken, the falling oxygen lance is immersed in molten steel and is easy to damage, so that high-pressure water in the lance leaks out and violently explodes with the molten steel, and inestimable loss is caused; the huge impact force of falling damages the oxygen lance mechanism, and the fracture of the high-pressure water pipe and the high-pressure oxygen pipe can cause serious secondary accidents.

The existing oxygen lance anti-falling device has the main defects that: the monitoring difficulty is high, the rail clamping phenomenon can occur when the brake is not applied, and the brake is unreliable when the brake is applied, and sometimes the brake is successful and sometimes unsuccessful.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides an external oxygen rifle anti-falling device of machinery that braking effect is good to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

a mechanical external oxygen lance anti-falling device with good braking effect comprises an external frame, wherein grooves are formed in two sides of the inner wall of the external frame, a plurality of limiting plates are uniformly arranged in the grooves from top to bottom, an oxygen lance trolley is arranged in the external frame, the top of the oxygen lance trolley is connected with the external frame through a steel wire rope, a spring set is arranged at the inner bottom of the oxygen lance trolley, a pulley set is arranged at the top of the spring set, the top end of the pulley set is connected with the end part of the steel wire rope, a connecting cover is arranged on the outer side of the pulley set, a first connecting piece is arranged on the outer surface of the connecting cover, two through holes which are symmetrically arranged are formed in the outer surface of the oxygen lance trolley, a limiting block and a rotating shaft are sequentially arranged on the inner wall of each through hole from top to bottom, a clamping piece is sleeved on each rotating shaft, a clamping hole and a non-return lug are arranged on the outer surface of each clamping piece, and a second connecting piece is arranged on the other side of the outer surface of each clamping piece, the other end of the second connecting piece is movably connected with the first connecting piece.

Preferably, the limiting assembly comprises a working groove located on the inner wall of the through hole, a spring is arranged in the working groove, a clamping rod is arranged at the other end of the spring, and the other end of the clamping rod is extruded with the outer surface of the clamping piece.

Preferably, a movable groove is formed in the middle of the second connecting piece, the first connecting piece and the second connecting piece are movably connected through a shaft rod, and the shaft rod is located in the movable groove.

Preferably, the clamping piece and the non-return lug are of an integrated structure, and the non-return lug is matched with the limiting block.

Preferably, the clamping piece is provided with a collision part, and the collision part is of an acute angle structure.

Preferably, the collision part is additionally provided with a layer of titanium alloy steel, and the limiting plate is made of 600 × 200 × 11 × 7H-shaped steel.

Preferably, the spring is a compression spring, and the clamping rod is of a T-shaped structure.

The utility model has the advantages that: during normal production, the device can not act and can be used only under the condition that the steel wire rope is broken, the dual acting force of gravity and motion inertia generated by descending is used as power, mechanical abrasion caused by daily operation does not exist, the device can be in a standby state as long as being debugged, the device has no use difficulty, no operation mechanism can be used, the cost is limited, and no other subsequent cost exists; through the design of the movable groove, the first connecting piece can be movably connected with the second connecting piece in the process that the first connecting piece descends to drive the second connecting piece to rotate, and the actions are further completed; through the design of stopper and non return ear to the rotation range of pin piece is restrained, and then makes card hole and kelly be located same water flat line, and then can accomplish the spacing action that the kelly card was gone into in the card hole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the general structure of a mechanical external anti-falling device for an oxygen lance with good braking effect according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a mechanical external oxygen lance anti-falling device with good braking effect in a broken state of a steel wire rope according to an embodiment of the utility model;

FIG. 3 is a schematic structural view of the mechanical external anti-falling device for oxygen lance with good braking effect in the state of no breaking of the steel wire rope;

fig. 4 is a schematic structural view of a limiting assembly of the mechanical external oxygen lance anti-falling device with good braking effect according to the embodiment of the utility model.

In the figure:

1. an outer frame; 2. a groove; 3. a limiting plate; 4. an oxygen lance trolley; 5. a spring set; 6. a clamping hole; 7. A wire rope; 8. a connecting cover; 9. a first connecting piece; 10. a through hole; 11. a rotating shaft; 12. a limiting block; 13. A fastener; 14. a non-return ear; 15. a second connecting piece; 16. a movable groove; 17. a spring; 18. and (5) clamping the rod.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides an external oxygen rifle anti-falling device of machinery that braking effect is good.

In the first embodiment, as shown in fig. 1-4, the mechanical external oxygen lance anti-falling device with good braking effect according to the embodiment of the present invention comprises an external frame 1, wherein both sides of the inner wall of the external frame 1 are provided with grooves 2, a plurality of limiting plates 3 are uniformly arranged in the grooves 2 from top to bottom, an oxygen lance carriage 4 is arranged inside the external frame 1, the top of the oxygen lance carriage 4 is connected with the external frame 1 through a steel wire rope 7, the inner bottom of the oxygen lance carriage 4 is provided with a spring group 5, the top of the spring group 5 is provided with a pulley block, the top of the pulley block is connected with the end of the steel wire rope 7, the outer side of the pulley block is provided with a connecting cover 8, the outer surface of the connecting cover 8 is provided with a first connecting part 9, the outer surface of the oxygen lance carriage 4 is provided with two through holes 10 which are symmetrically arranged, the inner walls of the through holes 10 are sequentially provided with a limiting block 12 and a rotating shaft 11 from top to bottom, the rotating shaft 11 is sleeved with a clamping piece 13, a clamping hole 6 and a non-return lug 14 are arranged on the outer surface of the clamping piece 13, a connecting piece II 15 is arranged on the other side of the outer surface of the clamping piece 13, and the other end of the connecting piece II 15 is movably connected with the connecting piece I9.

Embodiment two, as shown in fig. 1-4, according to the embodiment of the present invention, a mechanical external oxygen lance anti-falling device with good braking effect comprises an external frame 1, wherein two sides of the inner wall of the external frame 1 are both provided with grooves 2, a plurality of limiting plates 3 are uniformly arranged in the grooves 2 from top to bottom, an oxygen lance carriage 4 is arranged inside the external frame 1, the top of the oxygen lance carriage 4 is connected with the external frame 1 through a steel wire rope 7, the inner bottom of the oxygen lance carriage 4 is provided with a spring group 5, the top of the spring group 5 is provided with a pulley block, the top of the pulley block is connected with the end of the steel wire rope 7, the outer side of the pulley block is provided with a connecting cover 8, the outer surface of the connecting cover 8 is provided with a connecting piece one 9, the outer surface of the oxygen lance carriage 4 is provided with two through holes 10 which are symmetrically arranged, the inner walls of the through holes 10 are sequentially provided with a limiting block 12 and a rotating shaft 11 from top to bottom, the rotary shaft 11 is sleeved with a clamping piece 13, the outer surface of the clamping piece 13 is provided with a clamping hole 6 and a non-return lug 14, the other side of the outer surface of the clamping piece 13 is provided with a second connecting piece 15, the other end of the second connecting piece 15 is movably connected with a first connecting piece 9, the limiting assembly comprises a working groove located on the inner wall of the through hole 10, a spring 17 is arranged in the working groove, the other end of the spring 17 is provided with a clamping rod 18, the other end of the clamping rod 18 is extruded with the outer surface of the clamping piece 13, the middle part of the second connecting piece 15 is provided with a movable groove 16, the first connecting piece 9 is movably connected with the second connecting piece 15 through a shaft rod, and the shaft rod is located in the movable groove 16. It can be seen from the above design that, through the design of the movable slot 16, the first connecting member 9 can be movably connected with the second connecting member 15 in the process that the first connecting member 9 descends to drive the second connecting member 15 to rotate, thereby completing the above actions.

In a third embodiment, as shown in fig. 1-4, a mechanical external oxygen lance anti-falling device with good braking effect according to an embodiment of the present invention comprises an external frame 1, wherein two sides of the inner wall of the external frame 1 are both provided with grooves 2, a plurality of limiting plates 3 are uniformly arranged in the grooves 2 from top to bottom, an oxygen lance carriage 4 is arranged inside the external frame 1, the top of the oxygen lance carriage 4 is connected with the external frame 1 through a steel wire rope 7, the inner bottom of the oxygen lance carriage 4 is provided with a spring group 5, the top of the spring group 5 is provided with a pulley block, the top of the pulley block is connected with the end of the steel wire rope 7, the outer side of the pulley block is provided with a connecting cover 8, the outer surface of the connecting cover 8 is provided with a first connecting piece 9, the outer surface of the oxygen lance carriage 4 is provided with two through holes 10 which are symmetrically arranged, the inner walls of the through holes 10 are sequentially provided with limiting blocks 12 and a rotating shaft 11 from top to bottom, the cover is equipped with fastener 13 in the

pivot

11, 13 surfaces of fastener are equipped with card hole 6 and non return

ear

14, 13 surfaces of fastener opposite sides are equipped with connecting piece two 15, the other end of connecting piece two 15 with 9 swing joint of connecting piece, fastener 13 with two formula structures as an organic whole of non return ear 14, non return ear 14 with stopper 12 cooperatees for two, be equipped with the collision portion on the fastener 13, the collision portion is the acute angle structure, the collision portion is equipped with one deck titanium alloy steel with, the limiting plate 3 adopts 600 200 11H shaped steel, spring 17 is compression spring, kelly 18 is T shape structure. As can be seen from the above design, the strength and stability of both the latching piece 13 and the non-return lug 14 are improved by the design of the integrated structure.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In summary, with the above technical solution of the present invention, through, under the condition that the steel wire rope 7 is not broken, the pulley block is lifted by the steel wire rope 7 and does not contact with the bottom spring assembly 5, at this time, the clamping member 13 is retracted inside the through hole 10 and does not contact with the limiting plate 3 on the external frame 1, during the converter smelting process, when the oxygen lance steel wire rope 7 is suddenly broken during long-time operation in high temperature and severe environment, the pulley block is driven by the oxygen lance carriage 4 to be subjected to the dual actions of gravity and motion inertia, and continuously descend, at this time, the pulley block and the connecting cover 8 press the spring assembly 5 and continuously descend, at the same time, the connecting cover 8 pulls the connecting member two 15 through the connecting member one 9, the connecting member two 15 drives the clamping member 13 to rotate on the rotating shaft 11, then, the non-return ear 14 is extruded with the limiting block 12, at this time, the spring 17 pushes the clamping rod 18 to be clamped into the clamping hole 6, the clamping piece 13 is limited by the double action of the limiting block 12 and the clamping rod 18, at the moment, the clamping piece 13 is just pressed on the limiting plate 3 on the outer frame 1, the locking is completed through the action of the limiting block and the clamping rod and the cooperation of the reaction force, the oxygen lance trolley 4 is finally prevented from falling, the anti-falling purpose is achieved, and the safety of the oxygen lance is ensured.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The mechanical external oxygen lance anti-falling device with good braking effect is characterized by comprising an external frame (1), grooves (2) are formed in two sides of the inner wall of the external frame (1), a plurality of limiting plates (3) are uniformly arranged in the grooves (2) from top to bottom, an oxygen lance trolley (4) is arranged in the external frame (1), the top of the oxygen lance trolley (4) is connected with the external frame (1) through a steel wire rope (7), a spring group (5) is arranged at the inner bottom of the oxygen lance trolley (4), a pulley block is arranged at the top of the spring group (5), the top end of the pulley block is connected with the end of the steel wire rope (7), a connecting cover (8) is arranged on the outer side of the pulley block, a first connecting piece (9) is arranged on the outer surface of the connecting cover (8), two through holes (10) which are symmetrically arranged are formed in the outer surface of the oxygen lance trolley (4), be equipped with stopper (12) and pivot (11) from last to down in proper order on through-hole (10) inner wall, the cover is equipped with fastener (13) in pivot (11), fastener (13) surface is equipped with card hole (6) and non return ear (14), fastener (13) surface opposite side is equipped with connecting piece two (15), the other end of connecting piece two (15) with connecting piece one (9) swing joint.

2. The mechanical external oxygen lance anti-falling device with good braking effect as claimed in claim 1, wherein the limiting assembly comprises a working groove located on the inner wall of the through hole (10), a spring (17) is arranged inside the working groove, a clamping rod (18) is arranged at the other end of the spring (17), and the other end of the clamping rod (18) is extruded with the outer surface of the clamping piece (13).

3. The mechanical external oxygen lance fall prevention device with good braking effect as claimed in claim 2, wherein a movable groove (16) is arranged in the middle of the second connecting member (15), the first connecting member (9) and the second connecting member (15) are movably connected through a shaft rod, and the shaft rod is positioned in the movable groove (16).

4. The mechanical external oxygen lance fall prevention device with good braking effect as claimed in claim 3, wherein the clamping piece (13) and the non-return lug (14) are of an integral structure, and the non-return lug (14) is matched with the limiting block (12).

5. The mechanical external oxygen lance fall prevention device with good braking effect as claimed in claim 4, wherein the clamping member (13) is provided with a collision part, and the collision part is of an acute angle structure.

6. The mechanical external oxygen lance anti-falling device with good braking effect as claimed in claim 5, characterized in that the collision part is additionally provided with a layer of titanium alloy steel, and the limiting plate (3) is made of 600 x 200 x 11 x 7H-shaped steel.

7. The mechanical external oxygen lance anti-falling device with good braking effect as claimed in claim 6, wherein the spring (17) is a compression spring, and the clamping rod (18) is of a T-shaped structure.