Pressure steel pipe longitudinal gap lossless pressure head assembly device and assembly method
A pressure steel pipe and assembly device technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve problems such as damage to the base metal, influence on the structural and mechanical properties of the pressure steel pipe, and impact on the progress of the pressure steel pipe production, and achieve correction. , The effect of flexible disassembly and assembly and easy operation
Inactive Publication Date: 2017-07-25
CHINA GEZHOUBA (GRP) FIRST ENG CO LTD
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Problems solved by technology
This method of assembling the longitudinal seam indenter will cause damage to the base metal, thereby affecting the structural performance and mechanical properties of the penstock, and directly affecting the production quality of the penstock; Grinding and repairing will inevitably affect the production progress of penstocks
Method used
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[0026] Such as Figure 1~3 Among them, a non-destructive pressure head assembly device for the longitudinal seam of a penstock steel pipe, including two fixing parts, the fixing part includes two support plates 1 and a plurality of thrust plates 2 vertically arranged between the support plates 1, and the fixing part passes through the connecting plate 3 Connection, there is a gap for placing steel pipe tiles between the fixed parts, wedges 4 are arranged between the thrust plate 2 and the penstock tiles, the wedges 4 are right-angled triangles, and the wedges 4 are distributed on both sides of the longitudinal seam of the penstock , The distance between the wedge 4 and the longitudinal joint of the penstock is equal, and the penstock tiles on both sides of the longitudinal joint can be adjusted.
[0027] The support plate 1 and the connecting plate 3 are connected by bolts, and the connecting plate 3 is interchangeable.
[0028] The device fixes the fixed part and the pressur...
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Abstract
The invention discloses a pressure steel pipe longitudinal gap lossless pressure head assembly device and an assembly method. The device comprises two fixed parts; the fixed parts include two support plates, and multiple thrust plates vertically arranged between the support plates; the fixed parts are connected through a connecting plate; a gap for placing steel pipe tiles is formed between the fixed parts; and wedges are arranged between the thrust plates and the pressure steel pipe tiles. The device is used for assembly; a clamper and a fixture have no need to be welded in the whole longitudinal gap pressure assembly process, so that the surface of a pressure steel pipe cannot be damaged and destroyed, the longitudinal gap pressure head correction of the pressure steel pipe tiles is effectively realized, and the steel pipe parent metal is not damaged; and the device is convenient to operate, flexible in disassembly, and safe and efficient.
Description
technical field [0001] The invention relates to the installation and construction of a penstock steel pipe, in particular to a non-destructive pressure head assembling device and an assembling method for the longitudinal seam of a penstock steel pipe. Background technique [0002] At present, in the field of penstock production in hydropower stations, the rolling process of penstock tiles cannot pre-bend (pressure head) the longitudinal seams into the same arc due to various reasons. If the tile end is not pre-bent (indented) with a special membrane during the tile rolling process, the longitudinal seam of the tile will have a straight edge, and the deformation of the longitudinal seam after assembly will be extremely serious. Even if a special film is used to pre-bend the longitudinal seam of the tile (pressure head), due to the operator's operating error and the force of the upper roller during the pre-bending of the plate rolling machine, etc., the longitudinal seam of ea...
Claims
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IPC IPC(8): B23K31/02
CPCB23K31/027
Inventor 胡智军赵昌元成自飞胡云峰崔志成饶孝国刘军伟黎学皓熊建武刘世艳
Owner CHINA GEZHOUBA (GRP) FIRST ENG CO LTD