Cooler for cooling on-site welded joint of long steel rail and using method for cooler

A technology of on-site welding and welding joints, applied in tracks, track laying, track maintenance, etc., can solve problems such as low joints, increase maintenance workload, affect driving speed, etc., achieve fast cooling speed, ensure heat treatment quality, and improve product quality Effect

Inactive Publication Date: 2012-04-11
中铁二十二局集团第二工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a period of operation, it is easy to have low joints, which will affect the driving speed and increase the maintenance workload.

Method used

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  • Cooler for cooling on-site welded joint of long steel rail and using method for cooler
  • Cooler for cooling on-site welded joint of long steel rail and using method for cooler
  • Cooler for cooling on-site welded joint of long steel rail and using method for cooler

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Embodiment Construction

[0028] The accompanying drawings of the book further illustrate the present invention.

[0029] like Figure 1-2 As shown, a cooler for cooling welded joints of long rails on site is characterized in that it includes a traveling frame, a cooling fan, and a cooling air path distribution device. The cooling air path distribution device is fixed on the traveling frame, and the cooling air path A cooling fan is installed on the top of the distribution device;

[0030] The cooling air path distribution device is in the shape of a bottomless empty tank, the lower part of the tank body is folded inward, and an air path partition and an air path switch are arranged in the tank; the air path partition divides the tank body into multiple vertical spaces, and the air path The air circuit switch is movably connected to the top of the partition.

[0031] There are three partitions for the air passage, one central short partition is set in the center of the tank body, and the other two lo...

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PUM

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Abstract

The invention discloses a cooler for cooling an on-site welded joint of a long steel rail and a using method for the cooler. The cooler is characterized by comprising a walking support, a cooling fan and a cooling wind path distributing device, wherein the cooling wind path distributing device is fixed on the walking support; the cooling fan is arranged on the top of the cooling wind path distributing device; the cooling wind path distributing device has a bottomless empty tank shape; the lower part of the tank body is inwardly folded; wind path partitioning boards and a wind path switch are arranged in the tank; the wind path partitioning boards partition the tank body into a plurality of vertical spaces; and the tops of the wind path partitioning boards are moveably connected with the wind path switch. The using method comprises the following steps of: pushing the cooling wind path distributing device which is connected with an external power supply along the steel rail to a position above the on-site welded joint; turning on a switch of the cooling fan; distributing wind generated by the cooling fan to a part required to be cooled according to a certain sequence and a certain wind amount; and making the center of the cooling wind path distributing device uniformly swing within a range of 10cm around the welded joint so as to fulfill the aim of uniform cooling. The appearance of the welded joint is corrected by using a rule of thermal deformation in the cooling process, so that the appearance qualification rate of the welded joint is improved, the appearance polishing workload is reduced, and the product quality is improved.

Description

technical field [0001] The invention relates to a cooler used for cooling long steel rail welded joints on site and a using method thereof. Background technique [0002] Long rail welding is one of the indispensable processes in the construction and maintenance of railway seamless lines. At present, the newly built railways in my country with passenger cars are basically seamless lines. Due to its advantages of low noise, fast speed and stable operation, seamless lines are rapidly popularized in the railway industry. With the rapid development of my country's high-speed railway, the requirements for seamless lines are getting higher and higher. The quality of rail welded joints is one of the important factors restricting the improvement of seamless track quality. Especially for the quality of welded joints of long rails on site, natural cooling is adopted for normalizing on site. Due to the slow cooling speed, the hardness of welded joints after heat treatment is much low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B31/18
Inventor 赵巨宏郝银根曹同来石桂柳
Owner 中铁二十二局集团第二工程有限公司
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