Coupling sleeve for suspended semi submersible vertical turbine pump

A coupling sleeve for a suspended semi submersible vertical turbine pump, comprising a semi cylindrical first half sleeve and a second half sleeve, wherein the first half sleeve and the second half sleeve are fastened up and down to form a combined sleeve; The axial middle position of the combination sleeve is symmetrically opened with a quadrilateral positioning hole along the fastening line, and a positioning block that matches the positioning hole is embedded in the positioning hole; The inner hole of the axial middle part of the composite sleeve is provided with a matching ring; The bolt passes radially through the front and rear positioning blocks and the collar, and is connected to the nut thread, and tightened into one. Due to dividing a complete sleeve into a first half sleeve and a second half sleeve, and combining them into one through positioning blocks and rings, the problem of adhesion between the sleeve and the shaft is overcome, making disassembly easier. By embedding the positioning hole and positioning block together, accurate positioning is ensured, and it can be immediately restored after disassembly and reassembly.

Technical requirements: 1. A coupling sleeve for a suspended semi submersible vertical turbine pump, comprising a semi cylindrical first half sleeve (3) and a second half sleeve (7), wherein the first half sleeve (3) and the second half sleeve (7) are fastened up and down to form a combined sleeve; The feature is that the axial middle position of the combination sleeve is symmetrically opened with a quadrilateral positioning hole along the fastening line, and the four sides of the positioning hole are symmetrical concave arcs, and one symmetrical line of the quadrilateral coincides with the fastening line. A positioning block (4) that matches the positioning hole is embedded in the positioning hole; The inner hole of the axial middle part of the composite sleeve is provided with a matching ring (9); The bolt (8) passes radially through the front and rear positioning blocks (4) and the collar (9) and is threaded with the nut (6), and is fastened as a whole; The left side of the combination sleeve is fitted with a first connecting shaft (1), and the right side is fitted with a second connecting shaft (5); The first connecting shaft (1) and the second connecting shaft (5) are fixedly connected to the combination sleeve through a pin shaft (2) and a nut (6), respectively.