Spring manufacturer with the parameters of the
compression spring for you, we will from the following several aspects to introduce for you, and see it together!
Helical compression spring, compression spring for short, is a resistance to withstand, the axial pressure of the spring.
In the classification of all spring, compression spring is the most common one, also is a kind of stored energy is the most effective mechanical components.
In addition to the common cylindrical, other shapes are used, such as conical, convex and concave.
In general, the spring is either through a shaft, or is placed in the hole.
When you impose load on helical compression spring, spring get shorter, then the resistance load, the last to restore its original length.
1.
Main application range from the car engine, large punch to household appliances, lawn mower, from medical equipment, mobile phone to precision instruments, pressure spring has a broad application range.
Before buying pressure spring, make sure you need the pressure spring used in the industry, working condition, because it is directly related to the spring material selection.
2.
Direction compression spring spring spring circle direction like a screw thread, can be a left handed to, can also be left-handed.
In the application, if you need to a spring set in spring, the other must ensure that the two spiral spring to the contrary, a left a right;
If you need until spring inside screw bolt, the need to make sure that the bolt screw to rotate to consistent and spring.
3.
Circle number refers to the total number of laps from the top of the spring to the other all at the top of the spring coil.
In any state or end and tight and tight grinding condition, the ends of the pressure spring has a nonholonomic spring coil, not effective number of turns, is only used to support both ends up and down.
Effective number of turns refers to the complete laps can exert function of spring, in any part of the spring can store and release energy.
For the compression spring, when pressure spring pressure, can effective spring ring expansion, against pressure.
In the design of spring and determine its size, because the number of turns have a very big impact on the strength of the spring, so count spring laps is especially important.
Determination of laps is quite straightforward, from one end of the spring began to number, namely the position of the spring wire cut, and then with the spring silk spinning.
Every 360 ° even into a complete spring coil (
180°=0.
5, 90 ° = 0.
25 circle)
。
As shown in the picture on the right, the pressure spring, which is the total number of turns of five laps, effective number of turns is 3.
The calculation method is also suitable for the tension spring and torsional spring.
4.
The end type pressure spring end there are four main types.
End type affects the pitch, pressure and height of the spring, the total number of laps, effective, free length and support features.
1.
Not and tightly, not polished 2.
And not tight, grind the 3.
4 and tight state.
And tight, grind the 5.
End verticality and parallelism and perpendicularity spring of polishing is refers to the spring standing naturally with the verticality deviation while standing in the horizontal plane.
Vertical degree directly affects how the axial elasticity is passed on to the parts they are connected to.
Without pressure and tight spring end may directly apply to certain installation, however, and end face of tight state can provide better vertical degree, and reduce the spring with the sway of the assembly parts or disrupt the chance.
And tight end face of the compression spring is better than not grind the end of the spring performance.
The balance refers to the spring end of the spring and the other end of the parallel degree.
Spring and tight degree and grinding quantity is not completely consistent, therefore does not guarantee a consistent verticality
.
In addition, with the end of spring coil adjacent helix Angle is not exactly the same, the precision of the torsion machine could not be completely accurate, that produce the same stretch under load.
Due to the impact on the end of spring coil, spring stiffness in deformation range of 20% for the first time was in remission, is usually lower than the calculated value.
In the first stage of deformation, face support stiffness of the spring coil is higher than calculated value.
On the contrary, tends to increase 20% in the final deformation range, the reason is gradually closed spring coil.
To ensure better control of vertical degree, in many applications require of pressure spring end face grinding, these areas are usually: use high spring load to load or stiffness with strict tolerance required minimum pressure and support requirements of highly precise and consistent pressure requirements for spring elastic, is very flexible, external force can make face tilt, grind the acme of verticality more difficult.
Can not load condition or load conditions specified grinding verticality, but specify two states at the same time to reach a certain precision is extremely difficult.
If you need to meet the specified load or high, customers and manufacturers need to clear the spring to determine.
6.
Various shape, the shape of the pressure spring, according to the purpose of the use and condition, spring factory can design and manufacture for you different shapes of custom compression spring.
Cylindrical pressure - spring is the most common shape, and the overall layer cylindrical, wire diameter and pitch according to the customer request cone, cone shaped life common conical compression spring is used to fix the battery, connect concave is negative and form a loop - shaped like an hourglass, towards the middle of gradually become cone, diameter of bottom up gradually expanding convex - both ends in the narrow, big pig tail - in the middle of the middle part is cylindrical, up and down at the end of spring circle smaller noncircular - compared with the shape is relatively rare.
Have a rectangle shape similar to spring cartridge, also known as flat spring.
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