The disc spring is a conical annular disc spring that bears an axial load. Generally, the thickness of the disc is constant, and the load is evenly distributed on the inner edge of the upper surface and the outer edge of the lower surface. Disc springs are usually made of spring steel and can withstand static, shock or dynamic alternating loads and meet stringent requirements for fatigue life and load loss.
The advantages of disc springs:
1. Short stroke, small deformation and large bearing capacity.
2. Compared with other types of springs, the space utilization rate is higher.
3. Different spring combinations can obtain the required load characteristic curve.
4. Various special materials and surface coating methods can be used.
5. Easy maintenance and replacement, high economy and safety.
6. Long service life.
For users who do not use disc springs, how to better install the disc springs to give full play to their effectiveness is a problem. There is no need to first consider the price of the disc spring. What issues should buyers pay attention to when installing disc springs?
Disc spring installation precautions:
1. Pay attention to series installation
When installing spring parts, the arrangement is to install a small number of single pieces. The larger the series outer diameter of the disc spring, the better. As frictional resistance increases and displacement instability expands with the number of pieces in the series, the buyer can arrange the operation according to the manufacturer's recommended total series length. If the actual total length needs to exceed the specified standard, use a flat washer to divide the spring into two or three sections.
2. Note that lubricants can be used to simplify the installation procedure
When installing or tightening the nut, ensure the uniformity of the lubricating oil and anti-seize agent on the contact surface of the thread and the nut. The buyer can put the disc spring into the concave surface of the bolt, facing the flange surface, and keep the disc spring concentric with the bolt and rotate in the same direction. Then preliminarily tighten all nuts by hand, and the force should be even and meticulous.
3. Pay attention to ensure the tightness of the screw parts
Buyer may add disc springs on both sides of flanged studs. The purpose of this is to ensure that the upper and lower flanges are in compression to compensate for the effects of disc springs due to pressure fluctuations and temperature changes. When installing, pay attention to the tightness of the screws, and the gasket seal can be automatically adjusted to ensure the sealing effect.
The overall quality of a spring depends on the sum of its raw materials and processing techniques. Choosing a disc spring with guaranteed quality is the responsibility of the factory installer and the production process. The installation of the spring not only requires tandem installation, but also requires attention to the use of lubricants to facilitate the installation steps, and attention to ensuring the tightness of the screw parts.
Scope of application of disc spring: in the occasion of large load and high torque. Such as pre-tightening valve and pipeline flange bolts; pre-tightening fan, pump and centrifuge anchor bolts and flanges; pre-tightening heat exchanger, reactor, agitator flange bolts; clutch, generator and pipeline support hangers Pre-tightening of the device; pre-tightening the power bus bolts; various other engineering applications such as buffer devices, braking devices, high-voltage cable compensation devices and other equipment.