Role of hydraulic bolt tensioners

Hydraulic bolt tension referred hydraulic tensioners, the role of its dynamic components of the original motivation of the mechanical energy is converted into fluid pressure energy, it refers to the hydraulic system of pumps, hydraulic bolt tensioners to provide power to the mechanical energy of a fluid hydraulic pumps transformation. Acting hydraulic bolt tension power components of the original motivation of the mechanical energy is converted into fluid pressure energy, it refers to the hydraulic system of pumps, which provides power to the entire hydraulic system.

Torque wrenches required verification or calibration it

All professional measuring tools in factories and enterprises, including torque tools, before use to measure local hospital for testing, if the local metrology department without qualification, it is necessary to specify other cities to detect this type of torque tools, especially in the machinery manufacturing and automobile manufacturing as an important actor, and this tool is to be conducted annually detection. Torque wrench calibration in two ways:
1. Please seller before buying tool to help you detect, will cost added to the inside
2. alone detection

Hydraulic Torque Wrench Calibrators

Control flange flatness and introversion degree

flange alignment tools used by the positioning device and the locking device consisting of a flange alignment to determine the positioning hole, flange heating has the following three
1. flange with flame varus correction using a linear heating methods. About the width of the linear heating should not be too large, and generally plate thickness of 0.5 to 2 times the depth of the heating plate is 1/2 to 2/3 plate thickness
2. Flame straightening barrel distortion and flange generally use dot heating manner during deformation. Spot focus point is heated at a heating, roasted torch circular motion, so as not to exceed the maximum temperature
3. Generally triangular linear heating and heating with a flame straightening  T type flange flatness

Instructions on the use of the electromagnetic valve electric pumps

A. in the use of the electromagnetic valve electric pumps, first of all, according to the requirement of the measurement of workpiece, selecting moderate range torque wrench, torque values measured is less than twenty percent of the torsion device in use range, should not be too great A range for small torsion part of reinforcement, small range of torsion is less can outrange that;

B. when using hydraulic flange spreader, wrench square tenon connection first good auxiliary accessories (e.g., sleeve, all kinds of batch of mouth), ensure that the connection has no problem. Before strengthening torsion, set need reinforcement force value, and lock the lock device, adjust direction switch knob to the strength of the direction, then when use fast for 5 to 6 times in a row, first make a wrench on the internal components special lubricant can sufficient lubrication, make more accurate torque wrench, durable use.

The characteristics of hollow hydraulic wrench

Hollow hydraulic wrench hydraulic torque wrench force in a series, it has its own unique characteristics
1. The use of ultra-high-strength light metal, thin design, double-acting, high-speed, large angle
2. Snap-in, interchangeable plug-in, without special tools, torque repeatability up to ± 3%
3. The full range of rotary hose connectors, suitable for compact occasions convenient positioning
4. wrench full member strength design, the overall reaction arm, fewer moving parts, durable, reliable
5. scalable metric, British hex plug and socket, a power head can be realized simultaneously with multiple plug-ins

The structure of the torque wrench

hydraulic flange spreaders is also called the torque meter, torque screw whorls. It is the theory of beam bending, torsion bar

Principle of bending and compression principle of helical spring, designed to measure the effect on the nut torque size. flange alignment tools with a long elastic rod, the end with a handle, the other end with a square or hexagon head, in a square or hexagon head suit a replaceable sleeve, with steel ball stuck. Also equipped with a long pointer on the top. Scale plate fixed to the handle seat, each grid scale value is 1 n (or kg/m). Before use, first will be installed in the indicator on the wrench to adjust to the required torque, then throw a wrench, when reach the predetermined torque, indicator pointer will turn to pin a party, the last pointer to collide with the pin shaft, through sound signal or sensing signal to inform the operator.

Torque wrench

hydraulic torque wrench chart moment is the product of the force and distance, when the thread fasteners such as fastening screw bolt and nut torque size need to control, to ensure the thread fastening and not because of destruction of the torque wrench calibration tool 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.