Seamless large-taper reducer pipe for oxygen lance

Abstract

The utility model discloses a seamless large taper reducer pipe for an oxygen lance, a fixing mechanism comprises two limiting frames, the two limiting frames are arranged on the same vertical plane, an isolation fence is fixedly connected between the side edges of the two limiting frames, the two sides of the bottom of the lower limiting frame are fixedly connected with connecting frames, and the connecting frames are fixedly connected with the limiting frames. The inner wall of each limiting frame is slidably connected with three guide blocks, the length direction of each guide block faces the circle center of the corresponding limiting frame, the bottom of each guide block is fixedly connected with a telescopic block, and the telescopic blocks are connected with the inner walls of the limiting frames in a penetrating mode; a sleeve rod is slidably connected to the inner wall, close to the inner side of the limiting frame, of the telescopic block, springs are fixedly connected to the two sides of the sleeve rod, abutting blocks are fixedly connected to the other ends of the two springs, when the reducer pipe vibrates, the impact part caused by vibration is absorbed by the spring structures at the joints of the abutting blocks and the telescopic block, and the stability of the reducer pipe is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking industry, in particular to a seamless large-taper reducer pipe for an oxygen lance. Background Art

[0002] The oxygen lance reducer is an industrial equipment used in high-temperature combustion processes, mainly used in the steel industry and other metal smelting processes. It is usually composed of a series of pipes with different diameters to control the flow and distribution of oxygen to achieve the best effect in the combustion process. By adjusting the pipe diameters at different parts, the flow rate and injection direction of oxygen can be more accurately controlled, thereby improving combustion efficiency and output, and reducing energy consumption and emissions.

[0003] When the oxygen lance reducer is fixed and put into use, the high-pressure gas flowing in the reducer may cause the reducer to vibrate frequently, which not only affects the stability during connection, but also may cause damage due to collision with surrounding equipment. Therefore, a seamless large-taper reducer for an oxygen lance is proposed to solve the above problems. Utility Model Content

[0004] The technical problems to be solved by the utility model are as follows: the high-pressure gas flowing in the reducer may cause the reducer to vibrate frequently, which not only affects the stability during connection, but may also cause damage due to collision with surrounding equipment.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A seamless large-taper reducer for an oxygen lance, comprising a fixing mechanism, a reducer body is arranged inside the fixing mechanism, and the reducer body comprises a tapered tube;

[0007] Also includes:

[0008] Wherein, the fixing mechanism comprises a limit frame, two limit frames are provided in total, and the two limit frames are provided on the same vertical plane, an isolation fence is fixedly connected between the sides of the two limit frames, and both sides of the bottom of the lower limit frame are fixedly connected with a connecting frame;

[0009] Wherein, the inner wall of each of the limit frames is slidably connected with a guide block, three guide blocks are provided, and the length directions of all the guide blocks are toward the center of the limit frame;

[0010] Among them, the bottom of each guide block is fixedly connected with a telescopic block, the telescopic block is connected through the inner wall of the limit frame, the telescopic block is slidably connected with a sleeve rod near the inner wall of the inner side of the limit frame, the two sides of the sleeve rod are fixedly connected with springs, and the other ends of the two springs are fixedly connected with a stop block.

[0011] As a further solution of the utility model: the inner walls on both sides of the sleeve rod are fixedly connected with damping sleeves, the inner side of the damping sleeve is slidably connected with a sliding rod, and the sleeve rod is sleeved on the outside of the sliding rod, and one end of the sliding rod passes through the sleeve rod and is fixedly connected to the stop block.

[0012] As a further solution of the utility model: the inner wall of the upper end of the telescopic block is rotatably connected to a rotating rod, the top of the rotating rod passes through the telescopic block upward and is fixedly connected to a knob, the bottom of the rotating rod is fixedly connected to a screw rod, the outer wall of the screw rod is threadedly sleeved on the inner wall of the telescopic block, and the bottom of the screw rod is rotatably connected to the sleeve rod.

[0013] As a further solution of the utility model: the inner wall of the limit frame is rotatably connected with a rotating ring, the rotating ring is located as a whole below the telescopic block, the top of the rotating ring is fixedly connected with a thread, and the outer wall of the thread is meshed with the bottom of the telescopic block.

[0014] As a further solution of the utility model: the bottom of the rotating ring is fixedly connected with a bevel gear ring, one end of the side wall of the limit frame is rotatably connected with a bevel gear, the outer wall of the bevel gear is meshed with the bevel gear ring, and one end of the bevel gear passes through the outer wall of the limit frame.

[0015] As a further solution of the utility model: a connecting pipe is connected through the top of the tapered tube, and a positioning groove block is fixedly connected to the upper end and the lower end of the outer wall of the tapered tube.

[0016] As a further solution of the utility model: the inner side walls of the upper and lower limit frames are fixedly connected with positioning protrusions, the outer wall of the positioning protrusions is slidably connected to the inner side of the positioning groove block, and the outer wall of the stop block is in active contact with the outer wall of the tapered tube.

[0017] Beneficial effects of the utility model:

[0018] (1) The utility model provides two upper and lower limit frames, and a telescopic block that can be telescopically moved is installed inside the limit frame. The end of the telescopic block is connected to a stop block for clamping the side of the reducer. When the reducer vibrates due to the high-pressure gas passing into the reducer, the impact caused by the vibration is partially absorbed by the spring structure at the connection between the stop block and the telescopic block, thereby enhancing the stability of the reducer when in use.

[0019] (2) By rotating the bevel gear inside the limit frame, the bevel gear ring and the rotating ring can be driven to rotate, and the thread on the top surface of the rotating ring can push the telescopic block to move, so that the device can clamp and fix reducers of different diameters, thereby improving the universality of the device when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the lower limiting frame of the utility model from a top view;

[0023] Figure 3 It is a schematic diagram of the overall structure of the rotating ring and the thread in the utility model;

[0024] Figure 4 It is a schematic diagram of the overall structure of the rotating ring and the bevel gear ring in the utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the telescopic block in the utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of the middle sleeve rod of the utility model;

[0027] Figure 7 It is a schematic diagram of the overall structure of the tapered tube in the utility model.

[0028] In the figure: 1. fixing mechanism; 101. connecting frame; 102. limiting frame; 103. isolation fence; 104. positioning protrusion; 105. guide block; 106. telescopic block; 107. knob; 108. rotating rod; 109. screw rod; 110. sleeve rod; 111. damping sleeve; 112. sliding rod; 113. spring; 114. stop block; 115. rotating ring; 116. thread; 117. bevel gear ring; 118. bevel gear; 2. reducer body; 201. tapered tube; 202. positioning slot block; 203. connecting tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-7As shown, a seamless large-taper reducer for an oxygen lance includes a fixing mechanism 1, a reducer body 2 is arranged inside the fixing mechanism 1, and the reducer body 2 includes a tapered tube 201; wherein the fixing mechanism 1 includes a limit frame 102, two limit frames 102 are arranged, and the two limit frames 102 are arranged on the same vertical plane, and a separation fence 103 is fixedly connected between the sides of the two limit frames 102, and the bottom sides of the lower limit frame 102 are fixedly connected to the connecting frame 101; wherein the inner side of each limit frame 102 is ... The walls are all slidably connected with guide blocks 105, three guide blocks 105 are provided, and the length directions of all guide blocks 105 are toward the center of the circle of the limit frame 102; wherein, the bottom of each guide block 105 is fixedly connected with a telescopic block 106, the telescopic block 106 is connected through the inner wall of the limit frame 102, and the telescopic block 106 is slidably connected with a sleeve rod 110 near the inner wall of the inner side of the limit frame 102, and both sides of the sleeve rod 110 are fixedly connected with springs 113, and the other ends of the two springs 113 are fixedly connected with a stop block 114, such as Figure 1 , Figure 4 As shown, the spring 113 pushes the stopper 114 to be close to the outside of the tapered tube 201;

[0031] The inner walls of both sides of the sleeve rod 110 are fixedly connected with a damping sleeve 111, and the inner side of the damping sleeve 111 is slidably connected with a sliding rod 112, and the sleeve rod 110 is sleeved on the outer side of the sliding rod 112, and one end of the sliding rod 112 passes through the sleeve rod 110 and is fixedly connected with the stop block 114. Figure 6 As shown, when the spring 113 itself vibrates, the slide bar 112 moves inside the sleeve bar 110, and the damping sleeve 111 increases the damping between the slide bar 112 and the sleeve bar 110, thereby reducing the vibration of the spring 113 itself;

[0032] The inner wall of the upper end of the telescopic block 106 is rotatably connected to a rotating rod 108, the top of the rotating rod 108 passes through the telescopic block 106 upward and is fixedly connected to a knob 107, the bottom of the rotating rod 108 is fixedly connected to a screw rod 109, the outer wall of the screw rod 109 is threadedly sleeved with the inner wall of the telescopic block 106, and the bottom of the screw rod 109 is rotatably connected to a sleeve rod 110, as shown in FIG. Figure 5 As shown, an internal thread groove is provided on the outside of the screw rod 109 of the telescopic block 106;

[0033] The inner wall of the limit frame 102 is rotatably connected with a rotating ring 115, and the rotating ring 115 is located below the telescopic block 106 as a whole. The top of the rotating ring 115 is fixedly connected with a thread 116, and the outer wall of the thread 116 is meshed with the bottom of the telescopic block 106. Figure 3 As shown, when the rotating ring 115 drives the thread 116 to rotate, the thread 116 pushes the telescopic block 106 to move in the limiting frame 102;

[0034] The bottom of the rotating ring 115 is fixedly connected with a bevel gear ring 117, and one end of the side wall of the limit frame 102 is rotatably connected with a bevel gear 118. The outer wall of the bevel gear 118 is meshed with the bevel gear ring 117, and one end of the bevel gear 118 passes through the outer wall of the limit frame 102. Figure 4 As shown, when the bevel gear 118 rotates, it pushes the bevel gear ring 117 to rotate.

[0035] The top of the conical tube 201 is connected with a connecting tube 203, the upper and lower ends of the outer wall of the conical tube 201 are fixedly connected with positioning groove blocks 202, the inner side walls of the upper and lower limit frames 102 are fixedly connected with positioning protrusions 104, the outer wall of the positioning protrusion 104 is slidably connected to the inner side of the positioning groove block 202, and the outer wall of the stop block 114 is in active contact with the outer wall of the conical tube 201, such as Figure 2 As shown, the positioning protrusion 104 and the positioning groove block 202 are both made of rubber material, and after the positioning protrusion 104 is connected to the positioning groove block 202 , it can absorb part of the vibration caused by the tapered tube 201 .

[0036] The working principle of this utility model:

[0037] When in use, the tapered tube 201 is inserted into the inner side of the limit frame 201, and the positioning groove block 202 is aligned and installed on the outer side of the positioning protrusion 105. When fixed, the rotating bevel gear 118 drives the bevel gear ring 117 to rotate, thereby rotating the ring 115 and the top surface thread 116, and the thread 116 drives the upper meshing telescopic block 106 to move, so that the guide block 105 moves in the limit frame 102 toward the center of the limit frame 102, and the stop block 114 contacts and clamps the outer side of the tapered tube 201;

[0038] Secondly, according to the vibration intensity of the conical tube 201 after installation, the rotating knob 107 drives the screw 109 to rotate through the rotating rod 108, so that the screw 109 pushes the sleeve rod 110 in the telescopic block 106 to move toward the conical tube 201, and the spring 113 is gradually compressed, thereby changing the force required for the stop block 114 and the sliding rod 112 to push the spring 113 to deform, thereby changing the shock absorption strength when the conical tube 201 is clamped on the inner side of the stop block 114.

[0039] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A seamless large-taper reducer for an oxygen lance, comprising a fixing mechanism (1), a reducer body (2) being arranged inside the fixing mechanism (1), and the reducer body (2) comprising a tapered tube (201); It is characterized in that Also includes: The fixing mechanism (1) comprises a limit frame (102), two limit frames (102) are provided in total, and the two limit frames (102) are provided on the same vertical plane, an isolation fence (103) is fixedly connected between the sides of the two limit frames (102), and both sides of the bottom of the lower limit frame (102) are fixedly connected to a connecting frame (101); The inner wall of each of the limiting frames (102) is slidably connected to a guide block (105), three guide blocks (105) are provided, and the length directions of all the guide blocks (105) are oriented toward the center of the limiting frame (102); The bottom of each guide block (105) is fixedly connected to a telescopic block (106), the telescopic block (106) is connected through the inner wall of the limit frame (102), the telescopic block (106) is slidably connected to a sleeve rod (110) near the inner wall of the limit frame (102), both sides of the sleeve rod (110) are fixedly connected to springs (113), and the other ends of the two springs (113) are fixedly connected to a stop block (114).

2. A seamless large-taper reducer for an oxygen lance according to claim 1, characterized in that: The inner walls on both sides of the sleeve rod (110) are fixedly connected with a damping sleeve (111), the inner side of the damping sleeve (111) is slidably connected with a sliding rod (112), and the sleeve rod (110) is sleeved on the outer side of the sliding rod (112), and one end of the sliding rod (112) passes through the sleeve rod (110) and is fixedly connected to a stop block (114).

3. The seamless large-taper reducer for an oxygen lance according to claim 1, characterized in that: The inner wall of the upper end of the telescopic block (106) is rotatably connected to a rotating rod (108); the top end of the rotating rod (108) passes through the telescopic block (106) upward and is fixedly connected to a knob (107); the bottom of the rotating rod (108) is fixedly connected to a screw rod (109); the outer wall of the screw rod (109) is threadedly sleeved on the inner wall of the telescopic block (106); and the bottom of the screw rod (109) is rotatably connected to a sleeve rod (110).

4. The seamless large-taper reducer for an oxygen lance according to claim 1, characterized in that: The inner wall of the limit frame (102) is rotatably connected to a rotating ring (115), and the rotating ring (115) is located as a whole below the telescopic block (106). The top of the rotating ring (115) is fixedly connected to a thread (116), and the outer wall of the thread (116) is meshedly connected to the bottom of the telescopic block (106).

5. The seamless large-taper reducer for an oxygen lance according to claim 4, characterized in that: The bottom of the rotating ring (115) is fixedly connected to a bevel gear ring (117), one end of the side wall of the limiting frame (102) is rotatably connected to a bevel gear (118), the outer wall of the bevel gear (118) is meshingly connected to the bevel gear ring (117), and one end of the bevel gear (118) passes through the outer wall of the limiting frame (102).

6. The seamless large-taper reducer for an oxygen lance according to claim 1, characterized in that: The top of the conical tube (201) is connected through a connecting tube (203), and the upper and lower ends of the outer wall of the conical tube (201) are fixedly connected with positioning groove blocks (202).

7. The seamless large-taper reducer for an oxygen lance according to claim 1, characterized in that: The inner side walls of the upper and lower limit frames (102) are fixedly connected with positioning protrusions (104), the outer wall of the positioning protrusions (104) is slidably connected to the inner side of the positioning groove block (202), and the outer wall of the stop block (114) is in active contact with the outer wall of the conical tube (201).

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