Annular cooler trolley air inlet pipe connecting structure

Abstract

The utility model discloses a circular cooler trolley air inlet pipe connecting structure which comprises an air inlet pipe and a variable-diameter connecting pipe, a positioning block is arranged on the side edge of the variable-diameter connecting pipe, a sliding groove is formed in the positioning block, and a fixing block is connected to the side edge of the air inlet pipe. Through the arrangement of the sealing gasket, the air tightness between the variable-diameter connecting pipe and the air inlet pipe can be improved, the fixing bolt is screwed off and penetrates through the bolt hole, so that the bottom of the fixing bolt completely enters the positioning block, and then the air inlet pipe can be fixed to one side of the variable-diameter connecting pipe; therefore, the variable-diameter connecting pipe and the air inlet pipe can be fixed, and connection between the variable-diameter connecting pipe and the air inlet pipe is firmer. When the variable-diameter connecting pipe and the air inlet pipe need to be detached, the variable-diameter connecting pipe and the air inlet pipe can be detached through the operation on the contrary, follow-up maintenance or replacement is facilitated, and the problem that the service cycle is short due to frequent replacement is solved through the arrangement of the variable-diameter connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of air inlet pipes for annular cooling machine trolleys, in particular to an air inlet pipe connection structure for annular cooling machine trolleys. Background Art

[0002] During the steel smelting process, the high-temperature sintered ore is evenly arranged on the ring cooler trolley. The cooling air enters the interior of the ring cooler trolley from the wall panel at the bottom of the trolley to fully exchange heat with the high-temperature sintered ore, thereby achieving cooling of the high-temperature sintered ore; and the air inlet pipe of the ring cooler trolley will be connected to the external pipeline, thereby transporting the external air to the inside of the air inlet pipe through the pipeline.

[0003] Currently, when conveying air inside the ring cooler trolley, most of them use non-metallic expansion joints to connect the ring cooler trolley and the external pipes, so that the external air can enter the inside of the ring cooler trolley, which is more convenient when connecting the pipes and the ring cooler trolley; however, due to the long-term use of the non-metallic expansion joints, it will cause wear and corrosion, which will cause air leakage in the non-metallic expansion joints, affecting the utilization rate of the equipment. At the same time, when installing the non-metallic expansion joints, most of them use bolts to pass through the mounting ears on the expansion joints to fix the two adjacent expansion joints. The bolts will rust and corrode after long-term use, resulting in the bolts fixing the non-metallic expansion joints for a long time. If the corroded bolts are not found and replaced in time, the non-metallic expansion joints will fall off, and then the connection between the non-metallic expansion joint and the ring cooler trolley and the external pipes will not be strong enough. In view of this, we introduce a connection structure for the air inlet pipe of the ring cooler trolley. Utility Model Content

[0004] The utility model aims to provide an air inlet pipe connection structure for a ring cooling machine trolley to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air inlet pipe connection structure of a ring cooling machine trolley, comprising: an air inlet pipe and a reducing connecting pipe, a positioning block is provided on the side of the reducing connecting pipe, a sliding groove is provided inside the positioning block, a fixing block is connected to the side of the air inlet pipe, a sliding protrusion is connected to one side of the fixing block, the sliding protrusion is inserted into the inside of the sliding groove, a fixing bolt is threadedly inserted into the first bolt hole of the positioning block, and the bottom of the positioning block connected to the fixing bolt extends to the inside of the second bolt hole of the sliding protrusion, and an oil injection structure for lubricating the fixing bolt is provided at the positioning block near the fixing bolt.

[0006] Preferably, a sealing gasket is connected to one side of the reducer connecting pipe, and the provision of the sealing gasket can increase the air tightness between the reducer connecting pipe and the air inlet pipe.

[0007] Preferably, the sealing gasket is circular, and a sealing groove for placing the sealing gasket is provided inside the reducer connecting pipe, and the size of the sealing gasket is the same as that of the sealing groove.

[0008] Preferably, the inner diameter of the reducer connecting pipe close to the air inlet pipe end is smaller than the inner diameter far from the air inlet pipe end, and the reducer connecting pipe and the ring cooler trolley are welded.

[0009] Preferably, the slide groove is a groove, and the size of the groove is the same as that of the protrusion.

[0010] Preferably, the oil injection structure comprises an oil injection hole and a penetration hole on the surface of the positioning block, the oil injection hole is arranged at the edge of the first bolt hole, the penetration hole is arranged at the edge of the second bolt hole, and the oil injection hole is connected with the penetration hole.

[0011] Preferably, the diameter of the second bolt hole opening A is larger than the diameter of the middle portion B, and the diameter of the middle portion B matches the diameters of the fixing bolt and the first bolt hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model moves the reducer connecting pipe to the side close to the air inlet pipe, so that the sliding protrusion on the surface of the air inlet pipe is slidably connected to the inside of the slide groove, and the reducer connecting pipe is in contact with the air inlet pipe, so that the air tightness between the reducer connecting pipe and the air inlet pipe can be increased by setting the sealing gasket, and the fixing bolt is screwed down and the fixing bolt is passed through the inside of the bolt hole so that the bottom of the fixing bolt is completely inserted into the inside of the positioning block, and then the air inlet pipe can be fixed to one side of the reducer connecting pipe, and the reducer connecting pipe and the air inlet pipe can be fixed, so that the connection between the reducer connecting pipe and the air inlet pipe is more firmly established;

[0013] Oil is injected from the oil injection hole in the oil injection structure, so that the lubricating oil flows into the first bolt hole and the second bolt hole. Since the oil injection hole is connected with the penetration hole, the injected lubricating oil can enter the inside of the two bolt holes. The top of the first bolt hole is larger, which can allow the fixing bolt to enter and the lubricating oil to flow in, so that the fixing bolt can be lubricated, and the fixing bolt can be prevented from rusting when the fixing bolt is removed, so that the fixing bolt can be removed better. At the same time, the size of the middle part of the bolt hole is the same as the size of the fixing bolt, which is convenient for screwing the fixing bolt in.

[0014] Similarly, when the reducer connecting pipe and the air inlet pipe need to be disassembled, the above operation can be reversed, and the reducer connecting pipe and the air inlet pipe can be disassembled to facilitate subsequent maintenance or replacement. The setting of the reducer connecting pipe solves the problem of frequent replacement and short service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the lifting frame and the positioning frame of the utility model in a front section;

[0017] Figure 3 This is a schematic diagram of the structure of the reduced diameter connecting pipe of the utility model in a front section;

[0018] Figure 4 This is a schematic diagram of the structure of the variable diameter connecting pipe of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the sliding protrusion of the utility model in a front section.

[0020] In the figure: 1. air inlet pipe; 2. oil filling hole; 3. sealing groove; 7. reducing connecting pipe; 8. fixing bolt; 9. positioning block; 10. slide groove; 11. sealing gasket; 12. sliding protrusion; 13. second bolt hole; 14. fixing block; 15. first bolt hole; 16. oil filling structure; 17. penetration hole. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] See also Figure 1-5 The utility model provides a technical solution: an air inlet pipe connection structure of a ring cooling machine trolley, comprising: an air inlet pipe 1 and a reducing connecting pipe 7, a positioning block 9 is arranged on the side of the reducing connecting pipe 7, a slide groove 10 is opened inside the positioning block 9, a fixing block 14 is connected to the side of the air inlet pipe 1, a sliding protrusion 12 is connected to one side of the fixing block 14, the sliding protrusion 12 is inserted into the inside of the slide groove 10, a first bolt hole 15 of the positioning block 9 is provided with a fixing bolt 8, and the top of the positioning block 9 is connected with the bottom of the fixing bolt 8 extending to the inside of the second bolt hole 13 of the sliding protrusion 12, and an oil injection structure 16 for lubricating the fixing bolt 8 is provided at the positioning block 9 near the fixing bolt 8.

[0023] A sealing gasket 11 is connected to one side of the reducing connecting pipe 7 . The provision of the sealing gasket 11 can increase the air tightness between the reducing connecting pipe 7 and the air inlet pipe 1 .

[0024] The sealing gasket 11 is circular, and a sealing groove 3 for placing the sealing gasket 11 is provided inside the reducing connecting pipe 7 . The size of the sealing gasket 11 is the same as that of the sealing groove 3 .

[0025] A second bolt hole 13 is formed inside the sliding protrusion 12 , and the bottom of the fixing bolt 8 passes through the second bolt hole 13 and enters the interior of the positioning block 9 , so that the fixing bolt 8 can fix the sliding protrusion 12 inside the positioning block 9 .

[0026] The inner diameter of the reducer connecting pipe 7 at the end close to the air inlet pipe 1 is smaller than the inner diameter of the end far from the air inlet pipe 1 , and the reducer connecting pipe 7 and the ring cooler trolley are welded.

[0027] The sliding groove 10 is a groove, and the size of the groove is the same as that of the sliding protrusion 12 .

[0028] The oil injection structure 16 includes an oil injection hole 2 and a penetration hole 17 on the surface of the positioning block 9 . The oil injection hole 2 is arranged at the edge of the first bolt hole 15 , and the penetration hole 17 is arranged at the edge of the second bolt hole 13 . The oil injection hole 2 is connected to the penetration hole 17 .

[0029] The diameter of the opening A of the second bolt hole 13 is larger than the diameter of the middle portion B, and the diameter of the middle portion B matches the diameters of the fixing bolt 8 and the first bolt hole 15 .

[0030] like Figure 4-5 As shown, since the opening A of the first bolt hole 15 is slightly larger, when the air inlet pipe 1 and the reducer connecting pipe 7 are inserted and matched with the slide groove 10 through the sliding protrusion 12, it is easier to insert the bottom of the fixing bolt 8 into the second bolt hole 13 through the opening A, so as to achieve tightening and fix the air inlet pipe 1 and the reducer connecting pipe 7 to be sealed. At the same time, it is also convenient for lubricating oil to flow from the oil filling hole 2 to the penetration hole 17. It should be noted that the depth of the oil filling hole 2 is consistent with the depth of the first bolt hole 15, the depth of the penetration hole 17 is consistent with the depth of the second bolt hole 13, and the axis of the oil filling hole 2 is parallel to the axis of the first bolt hole 15, and the axis of the penetration hole 17 is parallel to the axis of the second bolt hole 13.

[0031] Specifically, when in use, first place the sealing gasket 11 in the sealing groove 3, then move the reducer connecting pipe 7 to the side close to the air inlet pipe 1, so that the sliding protrusion 12 on the surface of the air inlet pipe 1 is slidably connected to the inside of the slide groove 10, so that the sliding protrusion 12 is completely inserted into the inside of the positioning block 9, and the reducer connecting pipe 7 is in contact with the air inlet pipe 1, thereby using the setting of the sealing gasket 11 to increase the air tightness between the reducer connecting pipe 7 and the air inlet pipe 1, then unscrew the fixing bolt 8, and let the fixing bolt 8 pass through the inside of the bolt hole 13, so that the bottom of the fixing bolt 8 is completely inserted into the inside of the positioning block 9, then the air inlet pipe 1 can be fixed to one side of the reducer connecting pipe 7, and the reducer connecting pipe 7 and the air inlet pipe 1 can be fixed, so that the connection between the reducer connecting pipe 7 and the air inlet pipe 1 is more firmly established;

[0032] Oil is injected from the oil injection hole 2 in the oil injection structure 15, so that the lubricating oil flows into the inside of the first bolt hole 15. The oil injection hole 2 is connected with the penetration hole 17, and the injected lubricating oil can enter the inside of the second bolt hole 13. The top of the bolt hole 13 is larger, which can allow the fixing bolt 8 to enter and the lubricating oil to flow in, so that the fixing bolt 8 can be lubricated, so that when the fixing bolt 8 is taken out, it is not easy to take out due to the rust of the fixing bolt 8, so that the fixing bolt 8 can be better removed. At the same time, the size of the middle part of the bolt hole 13 is the same as the size of the fixing bolt 8, which is convenient for screwing the fixing bolt 8 in;

[0033] Similarly, when it is necessary to disassemble the reducing connecting pipe 7 and the air inlet pipe 1, the above operation can be reversed, and the reducing connecting pipe 7 and the air inlet pipe 1 can be disassembled to facilitate subsequent maintenance or replacement.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ring cooling machine trolley air inlet pipe connection structure, comprising: An air inlet pipe (1) and a reducer connecting pipe (7), characterized in that: a positioning block (9) is provided on the side of the reducer connecting pipe (7), a slide groove (10) is provided inside the positioning block (9), a fixing block (14) is connected to the side of the air inlet pipe (1), a sliding protrusion (12) is connected to one side of the fixing block (14), the sliding protrusion (12) is inserted into the inside of the slide groove (10), a fixing bolt (8) is threadedly inserted into the first bolt hole (15) of the positioning block (9), and the bottom of the positioning block (9) connected to the fixing bolt (8) extends to the inside of the second bolt hole (13) of the sliding protrusion (12), and an oil injection structure (16) for lubricating the fixing bolt (8) is provided at the positioning block (9) near the fixing bolt (8).

2. The air inlet pipe connection structure of the ring cooler trolley according to claim 1 is characterized in that: A sealing gasket (11) is connected to one side of the reducing connecting pipe (7).

3. The air inlet pipe connection structure of the ring cooler trolley according to claim 2 is characterized in that: The sealing gasket (11) is circular, and a sealing groove (3) for placing the sealing gasket (11) is provided inside the reducing connecting pipe (7).

4. The air inlet pipe connection structure of the ring cooler trolley according to claim 1 is characterized in that: The inner diameter of the variable diameter connecting pipe (7) at the end close to the air inlet pipe (1) is smaller than the inner diameter of the end far from the air inlet pipe (1).

5. The air inlet pipe connection structure of the ring cooler trolley according to claim 1 is characterized in that: The slide groove (10) is a groove.

6. The air inlet pipe connection structure of the ring cooler trolley according to claim 1 is characterized in that: The oil injection structure (16) comprises an oil injection hole (2) and a penetration hole (17) on the surface of the positioning block (9); the oil injection hole (2) is arranged at the edge of the first bolt hole (15); the penetration hole (17) is arranged at the edge of the second bolt hole (13); and the oil injection hole (2) is communicated with the penetration hole (17).

7. The air inlet pipe connection structure of the ring cooler trolley according to claim 6 is characterized in that: The diameter of the opening A of the second bolt hole (13) is larger than the diameter of the middle portion B, and the diameter of the middle portion B matches the diameters of the fixing bolt (8) and the first bolt hole (15).

Images