Cold hardening effect-based pipe punching and twisting-off device and method

[0019] A punching and twisting tube breaking device based on the cold work hardening effect is mainly composed of three parts: a tube fixer 2 , a tube combustion cooler 3 and a tube splitting puncher 4 .

[0020] The tube combustion cooler 3 includes a combustion chamber pushing cylinder 7, a combustion chamber 8, a fuse 9 and a cooling head 10; wherein the combustion chamber 8 is connected to the front end of the combustion chamber pushing cylinder 7, and is in the shape of a ring segment, and the fuze 9 is introduced into the combustion chamber. Inside the chamber 8; the inner end of the cooling head 10 surrounds the side of the combustion chamber 8 and is connected with the external cold medium.

[0021] The tube splitting twister 4 includes a punching claw pushing cylinder 12, a rotating slide rail 13 and a punching claw 14, wherein the rotating slide rail 13 forms a linkage with an external rotating drive mechanism.

[0022] The pipe fixer may be a caliper type pipe fixin...

[0028] A pipe punching and twisting device based on the cold work hardening effect mainly includes three parts: a pipe fixer 2 , a pipe combustion cooler 3 , and a pipe splitting puncher 4 . One of its features is that the pipe holder 2 is used to fix the pipe 1, and mainly includes a fixed claw pushing cylinder 5 and a fixed claw 6, and the fixed claw pushing cylinder 5 can push the fixed claw 6 to move radially. The second feature is that the tube combustion cooler 3 is used to fill the fuel 10, burn the heating pipe and cool it rapidly, mainly including the combustion chamber push cylinder 7, the combustion chamber 8, the combustion chamber fuze 9, the cooling head 11, and the combustion chamber 8 is filled with fuel , the cooling head sprays liquid nitrogen on the heating surface. The third feature is that the pipe splitting twister 4 can realize rapid rotation and is used for twisting the free end of the pipeline 1 to realize the relative displacement between the free end...