CN210069186U - Oxygen barrel spare quick change connecting device for steelmaking - Google Patents
Oxygen barrel spare quick change connecting device for steelmaking Download PDFInfo
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- CN210069186U CN210069186U CN201920258979.0U CN201920258979U CN210069186U CN 210069186 U CN210069186 U CN 210069186U CN 201920258979 U CN201920258979 U CN 201920258979U CN 210069186 U CN210069186 U CN 210069186U
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- tubular joint
- conical surface
- steelmaking
- joint
- connecting plate
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Abstract
The utility model discloses an oxygen barrel spare quick change connecting device is used in steelmaking, including public end and female end, public end includes that first tubulose connects and fixed connection connects outside first connecting plate at first tubulose, the one end of first tubulose connects is equipped with the external conical surface, the female end includes that the second tubulose connects and connects at the outside second connecting plate of second tubulose joint, the one end of second tubulose joint is equipped with the inner conical surface with the same cone angle of first tubulose joint, public end and female end adopt the conical surface to join in marriage and pass through the bolt pair fixed, public end and female end conical surface combination department adopt the sealing washer sealed, characterized by: the sealing ring is of a conical ring structure; and the tail end of the conical surface joint of the first tubular joint at the male end is provided with a positioning structure. The utility model discloses easy dismounting can realize quick, reliable connection, and the leakproofness is good, and safe in utilization reliability is high.
Description
Technical Field
The utility model relates to a pipe fitting quick change connecting device, especially an oxygen barrel spare quick change connecting device for steelmaking.
Background
The oxygen lance for steelmaking mainly comprises a nozzle, a lance body and a tail part, wherein the tail part of the oxygen lance is divided into three pipelines of a water inlet, a water outlet and an oxygen inlet, and when the oxygen lance is used, the tail ends of the three pipelines are respectively connected with a water inlet hose, a water outlet hose and an oxygen inlet hose, and cooling water and oxygen are injected. In the steelmaking process, oxygen lances are inserted into a converter from the top of the converter, and are easy to damage due to high temperature in the converter, and the oxygen lances are usually used one by one, and the oxygen lances are quickly replaced by the oxygen lances after one oxygen lance is damaged so as to avoid delaying the steelmaking process. At present, the tail part of the oxygen lance is connected with water and oxygen delivery pipelines by adopting a flange plate which is made of carbon steel, so that the pressure resistance and the sealing property are poor, the service life is short, the number of connecting holes of the flange plate is more, time and labor are wasted when bolts are disassembled, the labor intensity is high, the environment is severe when the top of the converter is disassembled and assembled, and the safety is poor.
The utility model discloses a chinese utility model patent of publication No. CN201723883U, name pipe fitting quick change connecting device, discloses a pipe fitting quick change connecting device. The quick-change connecting device for the pipe fitting comprises a male end and a female end, wherein the male end and the female end are connected in a conical surface matching mode, and a joint of the conical surfaces is sealed by an O-shaped sealing ring. The conical surface joint of the male end and the female end of the quick-change pipe connecting device is sealed by the O-shaped sealing ring, so that the quick-change pipe connecting device has the defects of inconvenient installation and disassembly, poor sealing property and low safety in the actual use process; when public end and female end cooperation are connected, the condition of slope appears in the fastening process easily, leads to sealed effect not good. In addition, because oxygen rifle service environment is the complex environment of dusty soil, the condition that can't fasten fast appears very easily by the environmental impact to the bolt of fixed connection when changing, influences the operating efficiency.
Disclosure of Invention
To the above-mentioned defect that exists among the prior art, the utility model provides a simple structure, the leakproofness is good, the security is high, the installation is dismantled lightly and is saved time's oxygen rifle pipe fitting quick change connecting device for steelmaking.
The utility model discloses a realize through following technical scheme: the utility model provides an oxygen barrel spare quick change connecting device for steelmaking, includes public end and female end, public end includes first tubular joint and fixed connection at the outside first connecting plate of first tubular joint, the one end of first tubular joint is equipped with the external conical surface, female end includes second tubular joint and connects the outside second connecting plate at second tubular joint, the one end of second tubular joint is equipped with the interior conical surface with the same cone angle of first tubular joint, public end and female end adopt the conical surface to cooperate and fix through the bolt pair, public end and female end conical surface combination department adopt the sealing washer sealed, characterized by: the sealing ring is of a conical ring structure; and the tail end of the conical surface joint of the first tubular joint at the male end is provided with a positioning structure.
The utility model discloses in, the sealing washer of taper ring structure is adopted to public end and female end conical surface junction, and the conical surface and the sealing washer of public end and female end adopt taper fit, and the leakproofness is good, and the security is high, adopts taper fit installation to dismantle lightly, saves time simultaneously. The terminal of the conical surface combination department through the first tubular joint at public end sets up location structure, and when public end and female end cooperation were installed, both accessible location structure carried out the accurate cooperation spacing, can prevent when the bolt-up that the condition that the slope appears when fastening one side from leading to the sealed not good condition appearance, can improve the leakproofness of public end and female end under the circumstances of high-speed joint greatly.
Further, the positioning structure is a positioning shaft shoulder.
Further, in order to ensure the sealing effect, the cone angle of the sealing ring is the same as that of the first tubular joint.
Furthermore, the nut of the bolt pair for connecting the male end and the female end is a cover-type nut. Through adopting the cover type nut, can fasten fast under the many complicated environment of dust, the protection bolt.
Furthermore, in order to facilitate quick connection, the male end and the female end are fixedly connected by using an eyelet bolt, the head end of the eyelet bolt is movably connected to the first connecting plate/the second connecting plate, and the second connecting plate/the first connecting plate is correspondingly provided with a U-shaped opening.
Further, for convenience in processing and use, a metal hose is fixedly connected to the rear end of the first tubular joint at the male end.
Further, the taper angle of the first tubular joint and the taper angle of the second tubular joint are 5-40 degrees.
Preferably, the taper angles of the first and second tubular fittings are 30 °.
Further, the width of the sealing ring is: 15-20 mm.
The utility model has the advantages that: the utility model discloses an adopt the sealing washer of taper ring structure in public end and female end conical surface combination department, the conical surface and the sealing washer of public end and female end adopt taper fit, and the leakproofness is good, and the security is high, adopts taper fit installation to dismantle lightly, saves time simultaneously. The terminal of the conical surface combination department through the first tubular joint at public end sets up location structure, and when public end and female end cooperation were installed, both accessible location structure carried out the accurate cooperation spacing, can prevent when the bolt-up that the condition that the slope appears when fastening one side from leading to the sealed not good condition appearance, can improve the leakproofness of public end and female end under the circumstances of high-speed joint greatly. The utility model discloses easy dismounting can realize quick, reliably connect, and the leakproofness is good, uses safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a front view of the male end of the present invention;
FIG. 3 is a right side view of FIG. 2;
fig. 4 is a front view of the female end of the present invention;
FIG. 5 is a left side view of FIG. 4;
fig. 6 is a schematic structural diagram of a seal ring according to the present invention;
fig. 7 is a schematic view of the male end connection metal hose of the present invention;
in the figure, 1, a first tubular joint, 2, a first connecting plate, 3, a sealing ring, 4, a second connecting plate, 5, a second tubular joint, 6, a swing bolt, 7, a cover nut, 8, a pin shaft, 9, a positioning shaft shoulder, 10, a U-shaped opening, 11 and a metal hose flange plate.
Detailed Description
The invention will now be further described by way of non-limiting examples with reference to the accompanying drawings:
as shown in the attached drawings, the quick-change connecting device for the oxygen gun barrel for steelmaking comprises a male end and a female end, wherein the male end comprises a first tubular connector 1 and a first connecting plate 2 fixedly connected to the outer portion of the first tubular connector 1, one end of the first tubular connector 1 is provided with an external conical surface, the female end comprises a second tubular connector 5 and a second connecting plate 4 connected to the outer portion of the second tubular connector 5, and one end of the second tubular connector 5 is provided with an internal conical surface with the same conical angle as that of the first tubular connector 1. The taper angles of the first tubular fitting 1 and the second tubular fitting 5 are preferably 5 ° to 40 °, and more preferably the taper angles of the first tubular fitting 1 and the second tubular fitting 5 are 30 °. The male end and the female end are matched by conical surfaces and fixed through a bolt pair, the joint of the conical surfaces of the male end and the female end is sealed by a sealing ring 3, and the sealing ring 3 is a sealing ring with a conical ring structure. The cone angle of the sealing ring 3 is preferably the same as the cone angle of the first tubular joint 1. The width of the sealing ring 3 is preferably 15-20 mm. A positioning structure is arranged at the tail end of the conical surface joint of the first tubular joint 1 at the male end, and a positioning shaft shoulder 9 is adopted as the positioning structure in the embodiment. When the female end is connected with the male end, the female end can be precisely matched and limited through the positioning shaft shoulder 9. In this embodiment, the male end and the female end are fixedly connected by a plurality of swing bolts 6, the first connecting plate 2 is provided with a plurality of U-shaped openings, two sides of each U-shaped opening are provided with ear plates, pin shaft holes are formed in the ear plates, the head ends of the swing bolts 6 are movably connected to the ear plates on the first connecting plate 2 through pin shafts, and the second connecting plate 4 is provided with U-shaped openings 10 corresponding to the swing bolts on the first connecting plate 2. When the male end and the female end are connected in a matched mode, the threaded rod end of the swing bolt 6 is matched with the U-shaped opening 10 in the second connecting plate 4 and is connected in a fastening mode through a nut. In order to adapt to the environment with much dust and complexity, the nut of the bolt pair connecting the male end and the female end in the embodiment preferably adopts a cover-type nut 7. The head end of the swing bolt 6 in this embodiment can also be arranged to be connected to the second connecting plate 4, with a corresponding U-shaped opening 10 being arranged in the first connecting plate 2.
As shown in fig. 7, the rear end of the first tubular joint 1 at the male end can be directly welded to a metal hose for easy processing and use.
The utility model discloses during the use, the rear end and the oxygen rifle welding of the second tubular joint 5 of female end, the rear end and the metal collapsible tube of the first tubular joint 1 of public end are connected, and the conical surface end of public end and female end is pegged graft and is cooperated spacingly through location shaft shoulder 9, and the conical surface combination department between them is sealed through sealing washer 3, and public end and female end are in the same place through a plurality of eye bolts 6 and the fastening of lid type nut 7.
Other parts in this embodiment are the prior art, and are not described herein again.
Claims (7)
1. The utility model provides an oxygen barrel spare quick change connecting device for steelmaking, includes public end and female end, public end includes first tubular joint (1) and fixed connection at the outside first connecting plate (2) of first tubular joint (1), the one end of first tubular joint (1) is equipped with the external conical surface, female end includes second tubular joint (5) and connects at the outside second connecting plate (4) of second tubular joint (5), the one end of second tubular joint (5) is equipped with the interior conical surface with the same cone angle of first tubular joint, public end and female end adopt the conical surface to join in marriage and pass through bolt pair fixedly, public end and female end conical surface combination department adopt sealing washer (3) sealed, characterized by: the sealing ring (3) is a sealing ring with a conical ring structure; the tail end of the conical surface joint of the first tubular joint (1) at the male end is provided with a positioning structure, and the positioning structure is a positioning shaft shoulder (9); the width of the sealing ring (3) is as follows: 15-20 mm.
2. The oxygen lance pipe fitting quick-change connecting device for steelmaking as claimed in claim 1, which is characterized in that: the cone angle of the sealing ring (3) is the same as that of the first tubular joint (1).
3. The oxygen lance pipe fitting quick-change connecting device for steelmaking as claimed in claim 1, which is characterized in that: the nut of the bolt pair for connecting the male end and the female end is a cover-type nut.
4. The oxygen lance pipe quick-change connector for steelmaking of claim 3, wherein: the male end and the female end are fixedly connected by a swing bolt, the head end of the swing bolt is movably connected to the first connecting plate (2)/the second connecting plate (4), and the second connecting plate (4)/the first connecting plate (2) is correspondingly provided with a U-shaped opening.
5. The oxygen lance pipe fitting quick-change connecting device for steelmaking as claimed in claim 1, which is characterized in that: and the rear end of the first tubular joint (1) at the male end is fixedly connected with a metal hose.
6. The oxygen lance pipe fitting quick-change connecting device for steelmaking as claimed in claim 1, 2, 3, 4 or 5, wherein: the conical angle of the first tubular joint (1) and the second tubular joint (5) is 5-40 degrees.
7. The oxygen lance pipe fitting quick-change connecting device for steelmaking as claimed in claim 6, which is characterized in that: the conical cone angle of the first tubular joint (1) and the second tubular joint (5) is 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258979.0U CN210069186U (en) | 2019-03-01 | 2019-03-01 | Oxygen barrel spare quick change connecting device for steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258979.0U CN210069186U (en) | 2019-03-01 | 2019-03-01 | Oxygen barrel spare quick change connecting device for steelmaking |
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| CN210069186U true CN210069186U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920258979.0U Active CN210069186U (en) | 2019-03-01 | 2019-03-01 | Oxygen barrel spare quick change connecting device for steelmaking |
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| CN (1) | CN210069186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841264A (en) * | 2020-08-26 | 2020-10-30 | 叶永清 | Absorption tower for desulfurization and denitrification based on connecting pipe positioning function |
-
2019
- 2019-03-01 CN CN201920258979.0U patent/CN210069186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841264A (en) * | 2020-08-26 | 2020-10-30 | 叶永清 | Absorption tower for desulfurization and denitrification based on connecting pipe positioning function |
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