We all know that in the production of large mechanical equipment, fastening or disassembling large-diameter bolts is more difficult, and it is more difficult to tighten large-diameter bolts with a fixed torque value, especially in the case of difficult construction work sites, the use of large-specification torque wrenches is more difficult, and sometimes even impossible to operate. To solve these problems, we need to use the extra wrench. So how does the extra wrench operate?
1, the afterwrench is a device that can provide torque for the operator. Since the output power does not exceed the input power, the output rotation number is lower than the input rotation number. At present, the products of various brands on the market are generally multiplied by planetary gear, which is generally amplified 5 times to 125 times, and the large output torque can reach about 50,000 Nm.
2, the booster wrench is by a circular or planetary gear combination in different combinations to drive the gear rotation output, each gear torque amplification factor is 5, in the star gear system, torque is input and output through the center gear. Driven by three or four planetary gears combined with a central gear. The circumferential gear in the multiplier housing is engaged with the circumstellar gear, but the direction of rotation is opposite to that of the internal planetary gear rotation. The reaction lever prevents the rotation of the housing integrated with the circumferential gear, and makes the star gear rotate around the center gear to drive the rotation of the drive square head and thus output torque.