Self-adaptive presser foot for steam turbine blade brazing
A steam turbine blade, self-adaptive technology, applied in the direction of welding equipment, auxiliary equipment, metal processing equipment, etc., can solve the problems of low efficiency, low weld quality, etc., achieve the effect of high quality, uniform gap, and reduce the demand for cylinders
Pending Publication Date: 2019-02-19
WUXI TURBINE BLADE
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Problems solved by technology
[0003] The purpose of the present invention is to provide a self-adaptive presser foot for steam turbine blade brazing to solve the problems of low efficiency and low weld seam quality in the prior art when steam turbine blades are brazed
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[0019] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0020] see Figure 1 to Figure 5 As shown, in this embodiment, an adaptive presser foot for steam turbine blade brazing includes a support bar 1, two presser feet 2 and a connecting support body 3, the two presser feet 2 are vertically arranged and the bottom ends are all arranged It is arc-shaped, and both ends of the support bar 1 are provided with stepped holes 4, corresponding to the tops of the two presser feet 2, there are second threaded holes 5, and the connecting bolts pass through the stepped holes 4 of the support bar 1 and are locked on the The two ends of the two presser feet 2 and the support bar 1 are fixedly connected in the second threaded hole 5 on the top of the presser foot 2, and the bottom of the connecting support body 3 is provided with a groove 6 that runs through the left a...
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The invention discloses a self-adaptive presser foot for steam turbine blade brazing. The self-adaptive presser foot comprises a support strip; the two ends of the support strip are each fixedly provided with a pressure foot body; the bottom of a connecting support body is assembled with the middle of the support strip; the support strip and the connecting support body are provided with through holes correspondingly; a connecting rod is mounted in the through holes of the support strip and the connecting support body; a first threaded hole is formed in the end of the connecting rod; a lockingbolt is screwed into the first threaded hole so as to fix the relative position of the support strip and the connecting support body; the support strip and the connecting support body can rotate relatively by loosening the locking bolt; and a driving pressing device is connected to the top of the connecting support body. The self-adaptive presser foot for steam turbine blade brazing is simple in structure and small in space occupation, and the work efficiency and brazing quality are improved; and the self-adaptive presser foot is good in universality, can adapt to different heights, bending degrees of stellite alloy sheets at different positions, and is high in flexibility.
Description
technical field [0001] The invention belongs to the brazing technology of steam turbine blades, in particular to an adaptive presser foot used for pressing Stellite alloy sheets during brazing of steam turbine blades. Background technique [0002] In the high-speed erosion environment of steam turbine blades, water droplet erosion reduces the strength of the blades, deteriorates the aerodynamic performance, and even causes the fracture of the blades in severe cases. Therefore, the water erosion failure problem has become one of the key factors in the design and manufacture of steam turbine blades. At present, it is generally adopted to braze the Stellite alloy sheet on the steam inlet side of the blade to improve the anti-corrosion ability of the blade and prolong the life of the blade. On-site brazing equipment still uses a single cylinder with a single presser foot, which not only wastes the cylinder, but also lowers the work efficiency, and occupies a large working space ...
Claims
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IPC IPC(8): B23K3/08
CPCB23K3/087
Inventor 董亚南徐鲲濠任勇史奎
Owner WUXI TURBINE BLADE