Hydraulic supporting tensioning mechanism for sleeve welding
A technology of hydraulic support and tensioning mechanism, which is applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., and can solve installation difficulties, large coaxiality deviation between inner sleeve and outer sleeve, and joint fracture And other problems, to achieve high work efficiency, prolong service life, ensure the effect of coaxiality
Inactive Publication Date: 2015-11-25
TIANJIN SHUANGXIANG ENG HYDRAULICS
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Problems solved by technology
This connection method is likely to cause a large deviation of the coaxiality of the inner sleeve and the outer sleeve, and the coaxiality requirements of the two ends of the inner sleeve and the outer sleeve cannot be met during assembly, resulting in difficulty in installation, or During long-term use, the connection is broken due to large torque
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[0010] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0011] see figure 1 , a hydraulic support tensioning mechanism for sleeve welding, including a central shaft 8, the left end of the central shaft 8 is threadedly connected with a screw sleeve 1, the left end of the screw sleeve 1 has an internal thread, and the inner wall of the right end is smooth, and is connected to the central shaft Excessive fit makes the inner sleeve and the right end of the outer cylinder rigidly connected to ensure coaxiality. The outer circle of the right end of the screw sleeve 1 is provided with a slope inclined downward from left to right, and the taper of the slope of the screw sleeve 1 is consistent with the taper of the inner wall of the inner sleeve 3; the middle part of the central shaft 8 is connected with t...
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The invention relates to a hydraulic supporting tensioning mechanism for sleeve welding. The hydraulic supporting tensioning mechanism comprises a center shaft. The left end of the center shaft is in threaded connection with a threaded sleeve. An inner thread is arranged at the left end of the threaded sleeve. The inner wall of the right end of the threaded sleeve is a smooth face, and the threaded sleeve is in transition fit with the center shaft. A slope inclining downwards from left to right is arranged on the outer circle of the right end of the threaded sleeve. The taper of the slope of the threaded sleeve is consistent with the taper of the inner wall of an inner sleeve. The middle of the center shaft is connected with a piston through a bearing. The piston is matched with a cylinder cover. A base is arranged at the right end of the center shaft. A guide rod is connected between the base and the cylinder cover. A sealing ring is arranged between the center shaft and the piston. A spigot matched with a piston inner cavity is formed in the left side of the cylinder cover. An oil injection hole formed in the cylinder cover is communicated with the cavity. The oil injection hole is connected with a hydraulic system through a pipeline. The piston pushes the inner sleeve to run leftwards along the slope of the threaded sleeve and meanwhile can expand outwards in the radial direction. The inner sleeve is fixed firmly through an inner hole of an outer sleeve, and it is guaranteed that the axis of an inner hole of a cylinder barrel and the axis of a hydraulic expansion sleeve are linearly consistent.
Description
technical field [0001] The invention belongs to the technical field of hydraulic processing auxiliary devices, in particular to a hydraulic support tensioning mechanism for sleeve welding. Background technique [0002] At present, when two sleeves are welded, one end of the inner sleeve is generally squeezed into the outer sleeve by external force, and a boss is processed on the inner wall of the outer sleeve. After the end contacts, proceed to soldering. This connection method is likely to cause a large deviation of the coaxiality of the inner sleeve and the outer sleeve, and the coaxiality requirements of the two ends of the inner sleeve and the outer sleeve cannot be met during assembly, resulting in difficulty in installation, or During long-term use, the connection is broken due to large torque. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a hydraulic support tensioning mechanism ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23K37/053
CPCB23K37/0531B23K2101/04
Inventor 吕技选
Owner TIANJIN SHUANGXIANG ENG HYDRAULICS