, Cylindrical coil spring
Circular Section Cylindrical Helical Compression Springs
The characteristic line is linear, the rigidity is stable, the structure is simple, the manufacture is convenient, and the application is wide. It is mostly used in mechanical equipment for cushioning, vibration reduction, energy storage and motion control.
Rectangular Section Cylindrical Helical Compression Spring
Under the same space conditions, the cylindrical helical compression spring with rectangular cross-section has higher stiffness than the circular cross-section cylindrical helical compression spring, absorbs more energy, the characteristic line is closer to a straight line, and the stiffness is closer to a constant.
Flat Section Cylindrical Helical Compression Springs
Compared with circular cross-section cylindrical helical compression springs, it has large stored energy, low compression height and large compression capacity, so it is widely used in devices with relatively small installation space such as engine valve mechanisms, clutches and automatic transmissions.
Unequal pitch cylindrical helical compression spring
When the load increases to a certain extent, as the load increases, the springs gradually tighten from the small pitch, the stiffness gradually increases, and the characteristic line changes from linear to gradually increasing. Therefore, its natural frequency is a variable value, which can better eliminate or ease the influence of resonance, and is mostly used in high-speed variable load mechanisms.
Stranded Cylindrical Helical Compression Spring
The material is a steel wire rope twisted into fine steel wire. When there is no load, the contact between the steel wires of the steel wire rope is relatively loose. When the external load reaches a certain level, the contact becomes tighter. At this time, the spring rigidity increases, so the characteristic line of the multi-strand coil spring has an inflection point. Compared with ordinary cylindrical coil springs of the same section material, it has higher strength and greater vibration damping effect. It is often used in weapons and aircraft engines.
Cylindrical Helical Extension Spring
The performance and characteristics are the same as those of circular cross-section cylindrical helical compression springs. It is mainly used in occasions subject to tension loads, such as tension springs used in coupling overload safety devices and pawl reset tension springs in ratchet mechanisms.
Cylindrical helical torsion spring
Withstand torsional load, mainly used for compaction and energy storage and elastic link in the transmission system, with linear characteristic line, should be widely used, such as used for dynamometer and forced air valve closing mechanism.
Two, variable diameter coil spring
conical coil spring
The function is similar to that of the unequal-pitch helical spring. After the load reaches a certain level, the spring gradually tightens from the large coil to the small coil. After the coils start to contact, the characteristic line is nonlinear, the stiffness gradually increases, and the natural frequency is a variable value. , which is beneficial to eliminate or ease resonance, and the anti-resonance ability is stronger than that of equal-pitch compression springs. This kind of spring has a compact structure and good stability, and is mostly used for bearing large loads and vibration reduction, such as suspension springs for heavy vibrating screens and Dongfeng automobile transmissions.
Spiral coil spring
Compared with other springs, spiral coil springs can absorb greater energy in the same space, and the friction between the plates can be used to dampen vibrations. It is often used in piping systems or components associated with piping systems that need to absorb thermal expansion deformation and negligible vibration, such as steam and water piping systems in thermal power plants. The disadvantage is that the gap between the plates is small, it is difficult to quench, and shot peening cannot be performed, and the manufacturing accuracy is not high enough.
3. Torsion bar spring
The structure is simple, but the material and manufacturing precision requirements are high. Mainly used as suspension springs for cars and small vehicles, auxiliary springs for valves in internal combustion engines, air springs, and auxiliary springs for voltage regulators.
4. Disc spring
Ordinary disc springs have strong load-bearing, buffering and shock-absorbing capabilities. Using different combinations can get different characteristic lines. It can be used in pressure safety valves, automatic switching devices, reset devices, clutches, etc.
5. Ring spring
It is widely used in occasions that need to absorb large energy but the space size is limited, such as locomotive traction springs, buffer springs for cranes and cannons, and vibration damping springs for forging hammers. Aircraft brake springs, etc.
6. Flat volute spring
The hairspring is a flat scroll spring formed by coiling a small-sized metal strip. Can be used as a measuring element (measuring hairspring) or as a pressing element (contact hairspring).
The mainspring is mainly used as an energy storage element. Clockwork is reliable in operation and easy to maintain, and is widely used in timing instruments and time control devices, such as clocks, recording instruments, household appliances, etc., and is used as a power source in motorized toys.
7. Leaf spring
A leaf spring is a metal sheet with a rectangular cross-section, which is mainly used in occasions where the load and deformation are not large. It can be used as a sensitive element in a detection instrument or an automatic device, an electrical contact point, a ratchet mechanism pawl, a locator, etc., to compress springs and supports or guide rails, etc.
8. Leaf spring
The leaf spring is composed of multiple spring steel plates. It is widely used as a suspension device in automobiles, tractors, and trains for buffering and vibration reduction. It is also used as a vibration reduction device in various mechanical products with high rigidity.
Nine, rubber spring
Due to the small elastic modulus of the rubber spring, large elastic deformation can be obtained, and the required nonlinear characteristics can be easily realized. The shape is not limited, and the stiffness in all directions can be freely selected according to design requirements. The same rubber spring can bear multi-directional loads at the same time, thus simplifying the structure of the system. The application of rubber springs in mechanical equipment is expanding day by day.
Nine, rubber spring
Due to the small elastic modulus of the rubber spring, large elastic deformation can be obtained, and the required nonlinear characteristics can be easily realized. The shape is not limited, and the stiffness in all directions can be freely selected according to design requirements. The same rubber spring can bear multi-directional loads at the same time, thus simplifying the structure of the system. The application of rubber springs in mechanical equipment is expanding day by day.
10. Rubber-metal helical composite spring
The characteristic line is of increasing type. This kind of rubber-metal helical composite spring has greater rigidity than rubber springs, and greater damping performance than metal springs. Therefore, it has the advantages of large bearing capacity, strong vibration damping, and wear resistance. Suitable for suspension structures of mining machinery and heavy vehicles, etc.
11. Air spring
An air spring is a non-metallic spring that uses the compressibility of air to achieve elastic action. Used in vehicle suspension devices can greatly improve the dynamic performance of the vehicle, thereby significantly improving its running comfort, so air springs are widely used in cars and trains.
12. Diaphragm and capsule
Corrugated Diaphragm
It is used to measure various quantities that are nonlinear with pressure, such as liquid or gas flow in pipelines, flight speed and altitude of aircraft, etc.
flat diaphragm
It is used as a sensitive element of an instrument and can isolate two different media, such as a flexible sealing device that is deformed due to pressure or vacuum.
Capsule
picture
Two identical diaphragms are connected along the perimeter to form a box.
13. Pressure spring tube
Under the pressure of the fluid, the end produces a displacement, and the displacement is transmitted to the pointer through the transmission mechanism, which is used for pressure gauges, thermometers, vacuum gauges, liquid level gauges, flow meters, etc.
