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   Pneumatic Wrench News Center:

   1. Introduction of the new state-saving pneumatic wrench

The new force wrench structure consists of two parts: the ratchet handle structure and the movable wheel train gear mechanism. Wherein the ratchet handle structure is composed of a pawl, a ratchet, a handle spring and a stopper, the ratchet is mounted on the head of the handle and is axially positioned by two flaps, the pawl and the spring are fitted in the positioning hole of the handle head, The head of the ratchet buckle, so that the ratchet, the handle can only rotate in one direction and intermittent movement. The fan-shaped gear transmission mechanism is composed of fan-shaped rack, wrench body and pinion gear. The two fan-shaped racks are fixed on the rear of the claw seat by screws and positioning pins, on both sides of the center of the screw, The center of the strip coincides with the center of the lower part of the chuck body, and the inner square hole of the wrench body is matched with the outer quadrilateral head of the screw shaft. The rotation shaft of the pinion gear is matched with the centering hole of the wrench body, The set screw on the body positioning the pinion axially.

   2. The effort of new type of pneumatic wrench

The new force-saving wrench's fuel-saving structure is based on the gear transmission torque amplification principle, the gear transmission structure for the dynamic shaft gear gear, fan-shaped rack for the sun wheel with fixed, and fan-shaped gear meshing drive for the planetary wheel, small The gear rotates around the center of the fan-shaped rack and rotates, and the center of the center of the two-center of the wrench is equal to the center distance of the pinion and the pinion. The gear ratio of the fan and the pinion is the torque magnification ratio of the new force wrench , The number of teeth of the segment is the number of teeth of the pinion and is positive displacement, the displacement coefficient is +0.5, the pinion is changing in order to improve the anti-bending fatigue strength of the pinion and improve the overall load carrying capacity of the new force- The new force wrench torque magnification ratio of 40/12, in the new length of the overall length of the wrench, the input force and ordinary wrench under the same conditions, the new force wrench output torque than the sauce wrench increased 3.3 times.

3. The new method of using the pneumatic wrench

New force wrench can be achieved within the card, card parts, two-way clamping parts, two-way effort. First of all, when using the new hand-held wrench card parts, will install the pinion wrench set in the end of the screw on the square head, wrench body, ratchet handle components offset in the screw on the right side of the center And the screw center on the right side of the fan-shaped meshing drive, the workers turn clockwise down the handle of the ratchet handle assembly, led the pinion side of the corresponding head of the corresponding rotation, pinion around the fan-shaped rack clockwise rotation and at the same time rotation Gear driven wrench around the center of the screw clockwise rotation, so that the screw clockwise rotation, the claw body to move forward card parts. When the wrench body to the lower limit position, the entire wrench from the side of the screw out. And re-placed in the upper limit position, repeat the above steps until the claws clamping parts.

When using the new hand-wound wrench card parts, the wrench will be installed on the side of the screwdriver on the square head, wrench body, ratchet handle components prefer the center of the screw in the center, so that the pinion and screw center The left side of the fan-shaped rack meshing the workers counterclockwise down the ratchet handle handle handle, led the pinion side of the corresponding head counterclockwise downward rotation, pinion around the fan-shaped rack counterclockwise rotation and at the same time rotation, small Gear driven wrench around the screw center counterclockwise rotation, so that the screw counterclockwise rotation, the claw body back to move the card parts. When the wrench body is moved to the lower limit position, the entire wrench is withdrawn from the square head of the lead screw and repositioned to the upper limit position. Repeat the above steps until the jaws clamp the part.

Concluding remarks

After the use of 3.5 m heavy-duty CNC lathe after use, the new force-saving pneumatic wrench clamping the workpiece clamping force, the central tight, looking for the workpiece process is safe, effort and reliable. The new force-saving wrench structure is now in the teaching of CNC horizontal lathe series of products on the use of gold, and achieved the desired effect, the new force-saving wrench development, social and economic benefits significantly.