WO2023097853A1

WO2023097853A1 - Self-adjusting argon blowing connector

Info

Publication number: WO2023097853A1
Application number: PCT/CN2021/142845
Authority: WO
Inventors: 张飞; 王凤良
Original assignee: 无锡巨力重工股份有限公司
Priority date: 2021-12-04
Filing date: 2021-12-30
Publication date: 2023-06-08
Also published as: CN114087442A; ZA202311804B

Abstract

The present invention provides a self-adjusting argon blowing connector, which can solve the problems of poor sealing and argon leakage caused by an end face of an upper connector being inclined. The self-adjusting argon blowing connector comprises an upper connector and a lower connector, wherein the lower structure comprises a connector body and a spring; the connector body comprises a press-fitting portion and a tubular portion which is arranged in the middle of the bottom of the press-fitting portion; a lower argon channel penetrating the press-fitting portion is formed on the tubular portion; a sealing ring surrounding the lower argon channel is mounted at the top of the press-fitting portion; the spring is sleeved outside the tubular portion; and the upper end of the spring abuts against the press-fitting portion. The lower connector further comprises a spring seat and an aligning block; a seat body of the spring seat abuts against the lower end of the spring and is provided with a lower guide sleeve extending upwards; the press-fitting portion is provided with an upper guide sleeve extending upwards; the lower guide sleeve is sleeved on the upper guide sleeve and is limited by means of a vertical limiting structure; and the lower portion of the seat body is fitted with the aligning block by means of an arc surface.

Description

A self-adjusting argon blowing joint

technical field

The invention relates to the field of auxiliary equipment in the steelmaking production process, in particular to a self-adjusting argon blowing joint.

Background technique

During the molten steel transfer process under the furnace, the molten steel tank needs to blow argon to the molten steel to achieve the effect of stirring the molten steel. Generally, argon blowing devices are usually installed on the transfer equipment under the furnace, such as molten steel tank cars and ladle turrets. When the molten steel It is necessary to connect the argon pipeline of the molten steel tank with the argon blowing device on the transfer equipment when the tank is dropped, and the automatic argon blowing joint is generally used for connection. The existing automatic argon blowing joint includes an upper joint and a lower joint. The upper joint is installed on the seat of the tank on the side of the molten steel tank, and the lower joint is installed on the bearing tank seat of the transfer equipment. Due to the installation, processing or angle of the upper joint As a result, the end face of the upper joint is inclined, and after it is docked with the lower joint, there is a local weak spot in the seal, resulting in argon gas leakage.

technical problem

The invention provides a self-adjusting argon blowing joint, which can solve the problems of weak seal and argon gas leakage caused by the inclination of the end face of the upper joint.

technical solution

Its technical solution is as follows, a self-adjusting argon blowing joint, including an upper joint and a lower joint, the lower structure includes a joint body and a spring, and the joint body includes a press-fit part and a tubular part, the tubular part is formed with a lower argon channel that runs through the press-fit part, the top of the press-fit part is installed with a sealing ring around the lower argon channel, and the spring is sleeved on the tubular In addition, the upper end of the spring is against the press-fitting part, and it is characterized in that: the lower joint also includes a spring seat and an aligning block, and the seat body of the spring seat is against the lower end of the spring, and the The seat body is provided with a lower guide sleeve extending upward, and the pressing part is provided with an upper guide sleeve extending upward, and the lower guide sleeve is socketed with the upper guide sleeve and is limited by a vertical limiting structure. The lower part of the seat body cooperates with the self-aligning block through an arc surface.

Further, the upper guide sleeve is sheathed outside the lower guide sleeve and arranged coaxially with the tubular portion.

Furthermore, the vertical limiting structure includes a limiting rod and a waist-shaped hole, the limiting rod is installed on the upper guide sleeve and extends into the waist-shaped hole, and the waist-shaped hole is vertically Set on the lower guide sleeve.

Preferably, there are more than three vertical limiting structures and they are evenly arranged around the upper guide sleeve and the lower guide sleeve.

Further, the middle part of the seat body is provided with an upwardly extending inner guide sleeve, and the inner guide sleeve is sleeved on the outside of the tubular portion.

Further, there are two sealing rings and two springs respectively, and they are distributed from inside to outside.

Further, the lower part of the seat body is provided with a self-aligning fitting part, and the self-aligning fitting part cooperates with the self-aligning block through an arc surface.

Further, a pressure plate is installed on the upper part of the press-fitting part, the spring is mounted on the pressure plate, and the middle part of the pressure plate communicates with the lower argon gas channel through a gas joint.

Further, the way that the springs are sleeved on the outside of the tubular part is replaced by uniform arrangement around the outside of the tubular part, and there are six springs.

Beneficial effect

In the self-adjusting argon blowing joint of the present invention, the pressing part of the lower joint can adjust the angle through the arc surface between the spring seat and the self-aligning block, and fit the upper joint at the same inclination angle to eliminate the weak seal. Overcome the problem of argon leakage.

Description of drawings

Fig. 1 is a schematic diagram of the overall sectional structure of the self-adjusting argon blowing joint of the present invention. FIG. 2 is an enlarged schematic view of the joint body in FIG. 1 . FIG. 3 is an enlarged schematic view of the spring seat in FIG. 1 . Fig. 4 is an enlarged schematic diagram of the cooperation between the self-aligning fitting part and the self-aligning block in Fig. 1 .

Embodiments of the present invention

As shown in Figures 1 to 4, a self-adjusting argon blowing joint includes an upper joint and a lower joint. The notification number is the invention patent of CN212156253U), the lower structure includes the joint body 1, the spring 2, the spring seat 3 and the centering block 5, the joint body 1 includes the press-fit part 1a and the tubular part 1b arranged in the middle of the bottom of the press-fit part 1a, The tubular part 1b is formed with a lower argon channel 1e that runs through the press-fitting part 1a. After the upper joint and the lower joint are butted, they are installed on the compressed air pipeline, the upper argon channel, and the lower argon channel 1e in the seat of the tank, and installed on the carrier The argon gas pipeline 10 in the tank seat is connected, the top of the press-fitting part 1a is equipped with a pressure plate 7, and the pressure plate 7 is equipped with a sealing ring 8 arranged around the lower argon gas channel 1e, the spring 2 is sleeved outside the tubular part 1b, and the spring 2 The two ends of the press-fit part 1a and the seat body 3a of the spring seat respectively, the bottom of the press-fit part is provided with the positioning groove 1f on the spring, the seat body is provided with the positioning groove 3e under the spring, and the seat body 3a of the spring seat 3 is against The lower end of the spring 2, the seat body 3a is provided with a lower guide sleeve 3b extending upward, the press-fitting part 1a is provided with an upper guide sleeve 1c extending upward, and the lower guide sleeve 3b is sleeved outside the upper guide sleeve 1c and passed through the vertical limit The structure is limited, the upper guide sleeve 1c, the lower guide sleeve 3b and the tubular part 1b are coaxially arranged, the lower part of the seat body 3a is equipped with an aligning fitting part 4, and the aligning fitting part 4 and the aligning block 5 are matched through an arc surface Specifically, the self-aligning fitting part is provided with a downwardly convex arc surface 4a, the self-aligning block 5 is provided with a downwardly concave arcuate surface 5a, and the downwardly convex arcuate surface 4a cooperates with the downwardly concave arcuate surface 5a.

There are 8 vertical limit structures and they are evenly arranged around the upper guide sleeve 1c and the lower guide sleeve 3b. The vertical limit structure includes a limit rod 6 and a waist-shaped hole 3c. The limit rod 6 is installed in the threaded hole 1d of the upper guide sleeve 1c and extends into the waist-shaped hole 3c. The waist-shaped hole 3c is vertically opened in the lower guide Set 3b. The arrangement of the vertical limit structure prevents the joint body from being separated from the spring and the spring seat. During assembly, the argon gas pipeline 10 in the tank seat is connected to the tubular part 1b, and a section of high-temperature-resistant hose or bellows can be installed at the joint between the argon gas pipeline 10 and the tubular part 1b, and the hose or corrugated structure can be used to adapt to press-fitting The angle adjustment between the upper part and the upper joint reduces the interference of the rigidity of the argon gas pipeline 10 on the rotation adjustment of the joint body 1 .

The middle part of the seat body 3a is provided with an upwardly extending inner guide sleeve 3d, and the inner guide sleeve 3d is sheathed on the outside of the tubular portion 1b.

There are two sealing rings 8 and two springs 2 respectively, and they are distributed from inside to outside, so as to improve the sealing effect.

A pressing plate 7 is installed on the upper part of the pressing part 1a, and the spring 2 is installed on the pressing plate 7. The middle part of the pressing plate 7 communicates with the lower argon channel 1e through the gas joint 9. At the same time, the gas joint 9 and the pressing part 1a are threaded. Press and fix the pressing plate 7 on the top of the pressing part 1a. In this embodiment, both the pressing plate 7 and the self-aligning fitting part 4 are detachably connected, which is convenient for processing and later replacement.

Claims

A self-adjusting argon blowing joint, including an upper joint and a lower joint, the lower structure includes a joint body and a spring, the joint body includes a press-fit part and a tubular part arranged in the middle of the bottom of the press-fit part, and the tubular part forms There is a lower argon channel that runs through the press-fitting part, a sealing ring surrounding the lower argon gas channel is installed on the top of the press-fitting part, the spring is sleeved outside the tubular part, and the spring The upper end leans against the press-fitting part, which is characterized in that: The lower joint also includes a spring seat and an aligning block, the seat body of the spring seat is against the lower end of the spring, the seat body is provided with an upwardly extending lower guide sleeve, and the press-fitting part is provided with an upwardly extending The upper guide sleeve, the lower guide sleeve is socketed with the upper guide sleeve and is limited by a vertical limit structure, and the lower part of the seat body is matched with the self-aligning block through an arc surface.
The self-adjusting argon blowing joint according to claim 1, wherein the upper guide sleeve is sleeved outside the lower guide sleeve and arranged coaxially with the tubular portion.
The self-adjusting argon blowing joint according to claim 2, wherein the vertical limit structure includes a limit rod and a waist-shaped hole, and the limit rod is installed on the upper guide sleeve and extends into In the waist-shaped hole, the waist-shaped hole is vertically opened in the lower guide sleeve.
The self-adjusting argon blowing joint according to claim 3, characterized in that: there are more than three vertical limiting structures and they are evenly arranged around the upper guide sleeve and the lower guide sleeve.
The self-adjusting argon blowing joint according to claim 1, characterized in that: an inner guide sleeve extending upward is provided at the middle part of the seat body, and the inner guide sleeve is sleeved on the outside of the tubular portion.
The self-adjusting argon blowing joint according to claim 1, characterized in that: there are two sealing rings and two springs respectively, and they are distributed from inside to outside.
The self-adjusting argon blowing joint according to claim 1, characterized in that: the lower part of the seat body is provided with an aligning fitting part, and the aligning fitting part is matched with the aligning block through an arc surface.
The self-adjusting argon blowing joint according to claim 1, characterized in that: a pressure plate is installed on the upper part of the press-fitting part, the spring is mounted on the pressure plate, and the middle part of the pressure plate is connected with the gas joint The lower argon channel is connected.
The self-adjusting argon blowing joint according to claim 1, characterized in that: the way that the spring is sleeved on the outside of the tubular part is replaced by a uniform arrangement around the outside of the tubular part, and the spring is provided with 6 .