Assembly with special unloading tools. The special unloading tool includes two half-shells with hinged joints and two half inner rings with hinged joints and pins that pin them. Each side of the semi-inner ring has three hydraulic heads, one manual oil pump outputs two The oil pipe is connected to the inner rings of the two halves. Under the action of high-pressure oil, the hydraulic pressure head can generate a groove corresponding to the inner diameter of the long axis and cooperate with the groove at the front end of the sleeve to force the sleeve to be fixed. The two inner rings are separated by a hinge, and the hydraulic pressure head is turned toward the side of the large bevel gear, and the pin is fastened by the pin at the groove of the taper sleeve.
The manual oil pump is pressurized, and the hydraulic pressure head pushes the large bevel gear to the large end of the taper sleeve along the axial direction of the long axis. At the same time, another manual oil pump connection is connected to the large-cone gear oil injection hole, and the oil pump pressurizes the large-cone gear inner cone hole spiral groove to inject high-pressure oil to expand the inner hole. Under the action of two manual oil pumps, the large bevel gear gradually approaches the large end of the outer diameter of the sleeve until the propulsion pressure is reached. 84M>aI, when the expansion pressure reaches ltMPa, the two oil pumps 1 are simultaneously relieved, and the large bevel gear is assembled to the correct position to form an interference fit with the long shaft to transmit the working torque of the roller. The disassembly is just the opposite. The inner ring oil head is fastened against the large bevel gear to fasten the taper sleeve.
The two outer casings are separated by a hinge, one end is fastened at the front groove of the large bevel gear, and the other end of the anti-corrosion wear-resistant abrasive pump is shackled to the long shaft, the pin is locked, and the expansion pump is pressurized and expanded. Hole, until the pressure oil leaks from the end of the gear inner hole; pressurize the oil pump, the inner ring oil head pushes and unloads the tool casing, and hooks the large bevel gear along the long axis to the small end of the taper sleeve. The expansion pressure during disassembly should be less than 13 MPa, otherwise it will adversely affect the use of the large bevel gear, and the propulsion pressure can be greater than the assembly pressure.
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