Type air pump Classification

The air pump is an enclosed space, or add a device to exclude air from the closed air space. air pumps is mainly divided into electric pump, hand air pump and pump feet moving. Electric air pump is powered pump electricity, compressed air through the power constantly generates pressure; manual pump is to practicing hand-powered pump, by practicing hand kept compressed, resulting in pressure; feet move leg muscles pump is powered the pump, compressed air through the leg muscles constantly generating pressure to work.

Classification gearhead

Main features hexagon reducer has a reverse gear unit is self-locking feature, you can have a greater reduction ratio, the input shaft and the output shaft axis is not the same, nor in the same plane. But generally larger, the transmission efficiency, high precision. It belongs to the harmonic gear hydraulic torque wrench, but the latter is the use of harmonic drive controlled elastic deformation of the flexible element to transmit motion and power, small size, high precision, but the disadvantage is the limited lifetime Flexspline , the impact of intolerance, rigidity and inferior to metal parts.

Dial torque wrench before the display instructions

dial torque wrench is also called dial-type torque wrench is a tool for torque calibration service.
1, the rotary knob on the case or the case can be driven pointer rotation, the pointer is a pointer memory, called passive pointer or trailing pointer; and join the movement for the work pointer pointers, also known as the active pointer.

2, the use of this product should be used in the appropriate range of sizes and models depending on the intensity level and the requirements of the fastener torque values should not exceed the scope of use.

Flange spreader used in the heat treatment step

Flange spreader is a new kind flange spreader tool of public use lifting, usually using mechanical flange spreader, whose task is to make it and placed in the wells annealing heat treatment equipment 6-8 meters in diameter when wind power flange connection or placement hoisting breaking easy to operate and reliable. The technical program elements are: at a position below the lifting rings are provided with a hanging chain cloth cage, the lifting chain a, the lifting chain, b, c of the rear end of the lifting chain head are provided with a hook , hook b, hook c; the hook with a, hook b, hook the bottom end of the c is provided with a left hook under the vertical curved feet under hook feet toes pointing wind power flange axis position, no slippage between the upper surface of the lower hook and the bottom surface of the foot of the wind power flange.

The working principle of torque wrench testers

torque wrench testers card tower sound principle is very simple, can be divided into the following steps to understand: 1, the torque wrench in a "tower" sound of prompting has reached after you claim on the torque value;

2, "tower card" is issued by a torque wrench by itself of the internal structure of torque to release them to release the joint structure is divided into spring pressure, torque, torque of plunger, three structure.

3, first on the torque wrench set the required torque value, locking 100ton hydraulic jacks, began to tighten the bolt. After when the bolt to the torque value, can produce effect disconnect to the moment. At the moment have a disconnect effect issued a joint percussion, wrench metal case of "tower" sound. From this reminder to confirm to the torque value.

hydraulic torque wrench chart

hydraulic torque wrench chart is also called the torque wrench, torque is the product of the force and distance, when the thread fasteners such as fastening screw bolt and nut torque size needs to be controlled, to ensure that the thread fastening and not because of destruction of the torque is too large, so use the torque wrench to operate. First set a maximum torque, torque reaches the set value when, wrench "card tower" noise or wrench joint bending Angle, this is already tightening torque. Torque wrench can be divided into: preset torque wrench, torque wrench calibration tool, MINI type torque wrench, torque wrench, dial torque wrench set value.

The function of dial indicating torque wrench features

1. The dial indicating torque wrench value read

2. Many kinds of joint can be switch can change according to the requirements of the different work

3. The CW clockwise: plus or minus 3%, CCW counterclockwise, plus or minus 4%

4. Can operation clockwise and counterclockwise

5. Peak keep and follow mode

6. Buzzer and LED indicator (reaches booking torsion value)

7. Four various engineering unit transfers (N - m, ft - lb, the in - lb, KGF - cm)

More than 8. Records can be stored value. Don't have to repeatedly set up torque.

9. Communication function

10. flange alignment Can use rechargeable batteries