Hammer use and maintenance (b)
Post Time: 2016-06-25
Hammer crank linkage as follows.Motor shaft l drive gear 2 gear 2 drive gear 3, gear 34 to secure the clutch connection with the bevel pinion shaft when the gear 3 rotates bevel pinion shaft 4 also rotates, and led a large bevel gear 5, cylinder 6 cylinder 6 and 7 of torque between the guide sleeve and serves as a guide with 8 balls to pass, when the cylinder 6 is rotated, due to the effect of balls 8, the guide sleeve is also rotated. Bushing passed between 7 and 9 with a roller drill torque and serves as a guide, when the motor starts rotating the drill bit 9 is also at the same time, 2 gear driven eccentric shaft l4, link l3, including plug l2, and reciprocating piston sports, due at a and B at the pores, so that the impact hammer l1 pressure difference generated at both ends, so that the impact of the fight against child l 01 so that the impact of the sub-combat drill, so that the rotation of the drill bit and the impact of the completion of the action, crushing drilling object.Hammer relatively poor environment, lack of drill grinding wheel machine on site, some operators have not yet mastered mill construction workers drilling techniques often found playing bit blunt no sharpening phenomenon. This allows hammer work load increased, the drilling speed is reduced. When drilling rate decreases, the operator then increase the pressure on the hammer, so that not only can not increase drilling speed, but will also increase the motor load, the tool is overloaded. In fact, if a little pressure on it and help prison, so the pressure to increase when the hammer action will result in damage to the tool. Thus, the operator should pay particular attention to blunt drill must be timely sharpening. Hammer overload protection device is used to protect the operator safety and protection tools. Hammer in use, if the drill bit suddenly stuck, then increase the torque load suddenly increases, overload protection device will slip, both to protect the operator, but also protect the tool. If there is no overload protection devices or overload protection device does not meet the requirements, the drill bit stuck in prison, suddenly increased torque, the operator will hand sprain, and motor stall, or even burn out the motor. There are currently hammer overload protection device using the friction clutch, like Suzhou East Granville, a German power tools Co., Ltd. developed clutch hammer is this structure, which Hammer has won state patents, are first-class quality and performance. Some use steel balls clutch, there is the use of jaw, as well as the use of electrical control, that is when the drill bit stuck, increase the current, the circuit automatically disconnect the motor will stop. When we use or maintenance, be sure to pay attention to whether the overload protection device failure during maintenance can not be arbitrary adjustments.
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