Impact drill

Introduction

Impact drills rely on rotation and shock to work. A single shock is very slight, but a shock frequency of more than 40,000 times per minute produces a continuous force. Can be used for natural stone or concrete. There are adjustment knobs at the drill chuck when the impact drill is working, and the ordinary hand drill and the impact drill can be adjusted. However, the impact drill uses the gears on the inner shaft to jump against each other to achieve the impact effect, but the impact force is far less than the electric hammer. It is not suitable for drilling reinforced concrete.

use

It is mainly used for impact drilling on concrete floors, walls, bricks, stone, wood and multi-layer materials. It can also be drilled and tapped on wood, metal, ceramics and plastics and equipped with electronic speed control equipment. Perform functions such as shun/reverse.

The impact drill motor voltage has two different voltages: 0V-230V and 0V-115V. It controls the clutch of the micro switch and obtains two different speeds of the motor speed. It is equipped with the function of the forward steering control mechanism, the elastic screw and the tapping.

The main structure

(1) Power switch.

(2) Reverse limit switch.

(3) Drill chuck.

(4) Power supply voltage regulation and clutch control torque.

(5) Change the voltage to realize the secondary shifting mechanism.

(6) Auxiliary handlebars, positioning rings, housing set screws, etc.

(7) Steady steering control mechanism.

(8) Gear set inside the machine.

(9) The chassis insulation holds the handshake.

Use and maintenance

The impact drill is designed with double insulation. It is safe and reliable in operation. It does not need to use protective grounding (zero) when using. It can be used with single-phase two-pole plug. It can be worn without insulating gloves or insulated shoes. In order to make the operation convenient, flexible and powerful, the impact drill usually has an auxiliary handle. Since the impact drill is double insulated and has no grounding (zero) protection, special care should be taken to protect the rubber cable. When carrying a mobile electric drill, you must hold the drill handle and do not pull the rubber cable while moving. Rubber cables do not allow the wheels to roll and foot; prevent rat bites.

Correct use

(1) Before operation, it must be checked whether the power supply matches the conventional rated 220V voltage on the power tool, so as to avoid being connected to the 380V power supply by mistake.

(2) Before using the impact drill, please carefully check the insulation protection of the body, the auxiliary handle and the depth gauge adjustment, etc., whether the machine has loose screws.

(3) Impact drills must be loaded with alloy steel impact drills or perforated universal drills with a permissible range of φ6-25MM according to material requirements. Do not use drills that go beyond the range.

(4) The impact drill wire should be well protected. It is strictly forbidden to drag the ground to prevent crushing and cutting. It is even more difficult to drag the wire into the oil water to prevent the oil from corroding the wire.

(5) The power socket using the impact drill must be equipped with a leakage switch device, and check the power cord for damage. If it is found that the impact drill leakage, abnormal vibration, high heat or abnormal sound, stop working immediately, find an electrician to check in time. repair.

(6) When the impact drill is used to replace the drill bit, the special wrench and the drill bit are used to lock the key to prevent the impact drill from being hit with a special tool.

(7) When using the impact drill, remember that the unusable force is too strong or the skew operation is performed. Beforehand, the appropriate drill bit should be tightened and the impact drill depth gauge should be adjusted. The vertical and balanced operation should be applied with a uniform force. Do not force the use of the oversized drill bit.

(8) Proficiency in the operation and operation of the steering control mechanism, the tightening screw and the punching and tapping.

maintenance

(1) Regularly replace the carbon brush of the impact drill and check the spring pressure by a professional electrician.

(2) Ensure that the overall impact of the impact drill body is intact and clean and dirt removal, to ensure smooth movement of the impact drill.

(3) Regular inspection of the components of the hand drill by a professional shall be carried out in a timely manner if the damage is serious and cannot be reused.

(4) Timely addition of body screw fasteners lost on the fuselage during operation.

(5) Regularly check whether the bearings, gears and cooling blades of the transmission part are flexible and in good condition, and lubricate the rotating parts in time to prolong the service life of the hand drill.

(6) After use, return the hand drill to the tool library and keep it in a safe place. Put an end to overnight storage in a personal tool cabinet.

Operating procedure

(1) Be sure to concentrate on your work, not only to keep your head clear, but also to operate the power tool reasonably, to stop drinking, or to take the machine after taking alcohol or drugs.

(2) The impact shell must have a grounding wire or neutral wire protection.

(3) The electric drill wire should be in good condition, and it is strictly forbidden to drag and drop to prevent crushing and cutting. It is strictly forbidden to drag the wires into the oil to prevent the oil from corroding the wires.

(4) Check if the insulation is intact and the switch is sensitive and reliable.

(5) The clamping bit should be used properly. It should be idle for a few minutes before use and can be used after it is rotated normally.

(6) When drilling, the drill should be slowly contacted with the workpiece. Do not use excessive force, break the drill bit, and burn the motor.

(7) Pay attention to the standing posture at work, and do not take it lightly.

(8) When operating the machine, be sure to stand firmly and keep it at a constant level.

(9) Use electric drill in the dry place. It is forbidden to wear gloves to prevent the bit from being caught. When using a drill in a damp place, you must stand on a rubber mat or dry wooden board to prevent electric shock.

(10) If the electric drill is found to be leaking, vibrating, and overheating during use, it should be immediately shut down and cooled before use.

(11) When the electric drill does not completely stop rotating, the drill bit cannot be unloaded or replaced. When an abnormality occurs, no one else may disassemble or assemble it by itself.

(12) When power is cut off, rested, or left at work, the power should be turned off immediately.

(13) If the power drill is used, the drill must be vertical and the fixed end must be firm and reliable.

(14) When replacing a new drill bit in the middle and drilling along the original hole, do not use force suddenly to prevent accidental breakage of the drill bit.

(15) When using impact drills, such as when working in wet areas, they must be placed on insulating mats or dry wooden boards. Safety measures must be taken when climbing or in hazardous areas such as explosion protection.

(16) Wear suitable overalls. Do not wear loose overalls. Do not wear jewelry or long hair. Do not wear gloves and cuffs to operate power tools.

(17) Do not allow random placement. When the work is finished, the drill and insulation products should be placed in the designated place.

Precautions

Impact drills are generally not used for electric drills:

First, because the impact drill is difficult to grasp when used, it is prone to misoperation and the opening is too large;

Second, the drill bit is not sharp, so that the hole opened is not neat, and burrs or cracks appear;

3. Even if there is a transfer switch on it, try not to use it for drilling. Unless you use a special drill bit, but because the speed of the drill is very fast, it is easy to blacken the hole and heat the bit, thus affecting the use of the bit. life.