Active-rotation inner-spraying spray head and using method

A rotating head and active technology, which is applied in the field of steel pipe quenching, can solve problems such as excessive distance, nozzle crash, and affecting production efficiency, so as to achieve high-efficiency quenching, reduce impact damage, and increase service life.

Pending Publication Date: 2019-03-19
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two kinds of quenching processes commonly used in steel pipe quenching devices at home and abroad: "spray + rotation + internal spray" and "immersion quenching + rotation + internal spray". This is because the distance between the existing internal spray nozzle and the end of the steel pipe is too large. The larger the distance, the more serious the deformation. However, if the distance is too small, it is easy to damage the nozzle when feeding, and the steel pipe rotating at high speed is also easy to Crash the nozzle, so the traditional steel pipe must be cut after heat treatment, which not only affects the production efficiency, but also reduces the yield of the steel pipe

Method used

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  • Active-rotation inner-spraying spray head and using method
  • Active-rotation inner-spraying spray head and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Referring to Figures 1-2, an active rotating internal spray nozzle includes at least a base frame 1 and a control unit, and is characterized in that it also includes a carriage 2, a carrier frame 3, a first hydraulic cylinder 4, a second hydraulic cylinder 5, and a motor 6. Gear 7, sealing ring 8, nozzle 9 and connecting pipe 10, the base frame 1 is an L-shaped structure, the inner bottom surface and the side wall of the base frame 1 are provided with chute respectively, and the two sides of the sliding frame 2 The end part is slidably connected to the inner bottom surface and side wall of the base frame 1, the first hydraulic cylinder 4 is detachably connected to the inner bottom surface of the base frame 1, and the driving end of the first hydraulic cylinder 4 is movably connected to the sliding frame 2 on the base frame. 1, one end of the inner bottom surface, the carriage 2 is slidably connected to the carriage 3, the second hydraulic cylinder 5 is detachably connect...

Embodiment 2

[0021] On the basis of embodiment 1, with reference to figure 1 , the top plate 11 is fixed on the nozzle pipe 9, and the anti-collision layer 12 is fixed on the top plate 11.

[0022] In actual use: when the pipe is displaced during rotation, the position is restricted by the top plate 11, and it will not continue to move. When it hits the top plate 11, the top plate 11 will follow the rotation of the nozzle 9, so the speed of the top plate 11 is the same as the pipe speed or the difference is small , so that the damage caused by the rotating pipe to the top plate 11 is reduced to the minimum, and the impact damage to the top plate 11 can be reduced through the anti-collision layer 12 at the same time, so as to increase the service life.

Embodiment 3

[0024] On the basis of embodiment 1, with reference to figure 1 and figure 2 , a bracket 13 is fixed inside the nozzle pipe 9 , and a rotating head 14 is fixed inside the bracket 13 .

[0025] The rotating head 14 is conical, and the tip is located on one side of the connecting pipe, and the outer surface of the rotating head 14 is provided with rotating patterns.

[0026] In actual use: after the liquid enters the spray pipe 9, it passes through the rotating head 14 and sprays to the inside of the pipe. Since the outer wall of the rotating head 14 has rotating patterns, when the liquid is ejected, it will be sprayed in an umbrella shape, so that the ejected The liquid is fully sprayed to the inner wall of the pipe to increase the quenching efficiency and effect.

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PUM

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Abstract

The invention relates to the field of steel tube quenching, in particular to an active-rotation inner-spraying spray head and a using method. The spray head at least comprises a base frame and a control unit, and further comprises a slide frame, a bearing frame, a first hydraulic cylinder, a second hydraulic cylinder, a motor, a gear, a sealing ring, a spray tube and a connecting tube, wherein thebase frame is of an L-shaped structure; slide slots are separately formed in the inner bottom surface and the side wall of the base frame; the two ends of the slide frame are in sliding connection tothe inner bottom surface and the side wall of the base frame; the first hydraulic cylinder is detachably connected to the inner bottom surface of the base frame; the drive end of the first hydrauliccylinder is movably connected to one end of the bottom surface, positioned in the base frame, of the slide frame; the bearing frame is in sliding connection on the slide frame; and the second hydraulic cylinder is detachably connected on the slide frame. According to the active-rotation inner-spraying spray head disclosed by the invention, the position of the spray tube can be changed to adapt tosteel tubes of different inner diameter sizes; and meanwhile, the spray tube can actively rotate to reduce collision damages, on the spray tube, when the steel tube rotates greater, so that the service life is prolonged, and liquid is sprayed out in the form of an umbrella to quench the inner wall of the steel tube more efficiently.

Description

technical field [0001] The invention relates to the field of steel pipe quenching, in particular to an actively rotating internal spray nozzle and a method for using it. Background technique [0002] In the heat treatment method whose main goal is to improve the hardness and wear resistance of steel, the quenching process is the key technology. At present, there are two kinds of quenching processes commonly used in steel pipe quenching devices at home and abroad: "spray + rotation + internal spray" and "immersion quenching + rotation + internal spray". This is because the distance between the existing internal spray nozzle and the end of the steel pipe is too large. The larger the distance, the more serious the deformation. However, if the distance is too small, it is easy to damage the nozzle when feeding, and the steel pipe rotating at high speed is also easy to The nozzle is damaged, so the traditional steel pipe must be cut after heat treatment, which not only affects t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/667C21D9/08
CPCC21D1/667C21D9/085C21D2221/10
Inventor 郝乐王红涛薛哲汪洋
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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