Torsion Spring Installation Method

The torsion almost a spring is actually a coil spring. When applied, the bottom part of the torsion al-spring is often fixed to other places, creating a phenomenon in which other components rotate around the center of the torsion al-spring. Once the other components rotate around the center of the spring, the spring is to quickly pull the other components back to their original position, which creates a rotation altogether force that changes to the desired resistance. In this way, the torsional spring can hold a device in a static manner by storing or releasing this energy, to achieve the desired result.

The correct use of springs

(1) more than the maximum compression of the use (300,000 back condition, the use of the next piece of dense long) pressure to produce and then cause loss, close to the use of dense long, will make the spring line gradually dense so, because the spring fixed number of high resulting in the load curve with high, near and high stress caused by the spring break, please do not use more than 300,000 back.

(2) The use of no pre-pressure due to a gap caused by the spring up and down vibration caused by the spring distortion, if there is a pre-pressure, the spring is more stable.

(3) Spring cross-position use Spring cross-position use, will cause the guide pin and spring wear and break.

(4) The use of no spring guide, such as in the case of dance spring guidance, it is easy to cause the spring bottom and body distortion, the local high pressure of its twisted part is the cause of spring break, please be sure to use the inner-diameter guide pin or the outer diameter guide and other devices.

(5) When the assembly surface levelist is poor, the parallelity of the assembly surface is not good will cause the spring distortion, local high pressure fracture, and the occasion of poor parallelity causes the spring distortion and more than 300,000 back to use resulting in spring breakage. Please improve the parallelity of the assembly surface with no more than 300,000 returns.

(6) About the spring internal diameter and the gap between the guide pin and the guide pin is too long, will cause the internal diameter of the collision wear, its wear ingenuity is the cause of the spring break, on the contrary, such as too big will cause the spring twist ingress break, the best between the spring diameter -1.0mm or so. And the free long spring (free length / outer diameter is greater than 4 or more) please use a segment order or guide pin to avoid the spring body distortion and the collision with the guide pin.

(7) Spring outer diameter and sink hole sink hole and spring gap head too small, due to spring compression caused by the outer puffing and sink hole friction caused by the force concentrated fracture, the better sink aperture is the spring outer diameter of 1.5mm. Use the shape of a sink hole when free longer spring.

(8) The guide pin length and sink hole depth is short when the guide pin is too short, will cause the guide pin head and spring wear and break, the ideal length of the guide pin is set to the spring length of 1/2 or more, and please reverse C3 chamfer.

(9) When the change or use of a spring, the spring is twisted by force causing the inner ring spring to be inserted into the outer ring (or the outer ring inserted into the inner ring) causing a break.

(10) The use of spring series in series in series to cause the spring to bend, and beyond the guide pin or sink hole length, and thus cause the same reason for the fracture, and due to the spring itself slightly different load caused by the weaker load to bear a greater compression surface fracture.

(11) Debris, foreign material mixed use when the mixed foreign material part will cause the effective volume no action only other parts of the compression, the actual effective number of volumes small near the surface caused high stress and fracture, do not mix foreign objects in the spring.

Of course, we can also find that the application of different places, in which the number of torsion alt-down slaps is also different, so, this involves a lot of physical and mathematical knowledge. The number of rings required to get the torsion spring is calculated by fixing the amount of resistance required for the unit. Also, in the calculation process, according to the actual requirements of the application to design the direction of rotation of the torsion alt-spring.