Guide sleeve dismounting device

The utility model relates to the field of marine diesel engines. The utility model discloses a guide sleeve dismounting device. The guide sleeve dismounting device comprises a support (10), a first rod (11), a second rod (12), a first clamp (21) and a second clamp (22). The bottom surface of the first clamp (21) is supported on the bracket (10); the second clamp (22) is arranged on the bracket (10); the clamping surfaces of the first clamp (21) and the second clamp (22) face each other in the axial direction of the first rod (11). The first rod (11) movably penetrates through the support (10)to be connected with the side face of the first clamp (21) so that the first clamp (21) and the second clamp (22) can be matched together to clamp a guide sleeve to be detached, the first rod (11) canmovably penetrate through the support (10) to be connected with the side face of the first clamp (21), and therefore the first clamp (21) can move in the axial direction. According to the guide sleeve dismounting device, the