Nitrogen spring design principles, basic parameters and characteristics
Publish: 2016-07-29 Views: 1363
1, nitrogen gas spring design principles?
Using nitrogen as nitrogen gas spring working medium, its working process, can be considered to be approximately isothermal expansion and compression process, it is necessary to follow a Mariotte Boyle (Boyle-Mariotte) gas equation of state.
PV / T = C, P1 × V1 = P2 × V2?
It should be noted, in addition to theoretical calculations than the nitrogen cylinder design, sealing technology is the key to the success of the nitrogen spring technology. Judging from the current domestic and foreign products, the nitrogen spring structure can generally be divided into: each piston plunger two major types, single chamber or double chamber air chamber structure, designed more for the gas chamber backpressure structure. On the whole, nitrogen gas springs can be divided into independent and non-independent type two major types. Structure, inflatable, gas distribution structure and form like the movable portion and the non-moving parts are designed and manufacturing process technology associated with new materials, new processes, new technologies associated with the application, the extent of application of these new technologies are It will directly affect the technical performance of nitrogen gas springs, nitrogen gas springs affect the level of quality. In this sense, the nitrogen spring is an integrated application of new technology products.
And form a gas seal technology is a complex task, sealing high-pressure gas is more complex, high-pressure gas is not only a good long-term sealing and cycle to work under this pressure, which is sometimes as high as 1.6-2.0 pressure ratio and therefore high pressure long-term sealing gas, than the high-pressure liquid seal is much more difficult, it is a comprehensive technology, which has a structure in the form of sealed static sealing and dynamic sealing path, form, motion paying manufacturing precision, surface roughness , surface treatment technology, the choice of sealing materials, sealing reliability and service life.
2, nitrogen spring basic performance parameters?
Nitrogen spring design course is to broaden the range of applications, it can be applied to a variety of environmental conditions, different technical requirements, but for now we recommend the gas spring is generally used at room temperature, the temperature of the environment, should a separate issue. Its use of the environment are: frequency response of not more than 40 times per minute; speed of movement of the plunger or piston should have 30-40 m / min; alternate travel generally designed for 3 mm; normal use at room temperature. Under these conditions gas spring performance parameters can be defined as the following items:?
(1) pneumatic pressure bar Rated
(2) rated initial pressure bomb Newton?
(3) the effective working stroke mm
(4) a meter or inflatable life times?
(5) with the characteristic pressure ratio
(6) Operating ambient temperature ° C?
(7) Exterior color
(8) and the largest structure in the form of partial load angle?
3, nitrogen spring characteristics?
Nitrogen spring characteristics can be summarized as the following aspects:
(1) in a smaller space, you can have a greater initial biasing force, without pretension, transfer module soon came into contact with the nitrogen spring-loaded plunger having a bomb on the pressure. A nitrogen gas spring can replace a plurality of springs, the working stroke of the same mold, using nitrogen gas springs die springs mold height than the height of many small use;
(2) the biasing force in the entire trip, you can maintain a substantially constant;
(3) Depending on the cold stamping process requirements, the size of its biasing force, the position of the point can be adjusted at any time to adjust accurate, convenient in mold design and debugging, it can easily achieve biasing force balance;
(4) to simplify the die pressure and discharging structure, simplified mold design, mold manufacturing cycles shorten;
(5) improve the quality of stamping parts, punching parts to ensure stable quality, shorten the time to replace the mold in the press, improve labor productivity, reduce costs;
(6) long life, safety, reliability, installation and maintenance simple, reliable and convenient;?
(7) applies to the device as a cushion without any external power source.
Using nitrogen as nitrogen gas spring working medium, its working process, can be considered to be approximately isothermal expansion and compression process, it is necessary to follow a Mariotte Boyle (Boyle-Mariotte) gas equation of state.
PV / T = C, P1 × V1 = P2 × V2?
It should be noted, in addition to theoretical calculations than the nitrogen cylinder design, sealing technology is the key to the success of the nitrogen spring technology. Judging from the current domestic and foreign products, the nitrogen spring structure can generally be divided into: each piston plunger two major types, single chamber or double chamber air chamber structure, designed more for the gas chamber backpressure structure. On the whole, nitrogen gas springs can be divided into independent and non-independent type two major types. Structure, inflatable, gas distribution structure and form like the movable portion and the non-moving parts are designed and manufacturing process technology associated with new materials, new processes, new technologies associated with the application, the extent of application of these new technologies are It will directly affect the technical performance of nitrogen gas springs, nitrogen gas springs affect the level of quality. In this sense, the nitrogen spring is an integrated application of new technology products.
And form a gas seal technology is a complex task, sealing high-pressure gas is more complex, high-pressure gas is not only a good long-term sealing and cycle to work under this pressure, which is sometimes as high as 1.6-2.0 pressure ratio and therefore high pressure long-term sealing gas, than the high-pressure liquid seal is much more difficult, it is a comprehensive technology, which has a structure in the form of sealed static sealing and dynamic sealing path, form, motion paying manufacturing precision, surface roughness , surface treatment technology, the choice of sealing materials, sealing reliability and service life.
2, nitrogen spring basic performance parameters?
Nitrogen spring design course is to broaden the range of applications, it can be applied to a variety of environmental conditions, different technical requirements, but for now we recommend the gas spring is generally used at room temperature, the temperature of the environment, should a separate issue. Its use of the environment are: frequency response of not more than 40 times per minute; speed of movement of the plunger or piston should have 30-40 m / min; alternate travel generally designed for 3 mm; normal use at room temperature. Under these conditions gas spring performance parameters can be defined as the following items:?
(1) pneumatic pressure bar Rated
(2) rated initial pressure bomb Newton?
(3) the effective working stroke mm
(4) a meter or inflatable life times?
(5) with the characteristic pressure ratio
(6) Operating ambient temperature ° C?
(7) Exterior color
(8) and the largest structure in the form of partial load angle?
3, nitrogen spring characteristics?
Nitrogen spring characteristics can be summarized as the following aspects:
(1) in a smaller space, you can have a greater initial biasing force, without pretension, transfer module soon came into contact with the nitrogen spring-loaded plunger having a bomb on the pressure. A nitrogen gas spring can replace a plurality of springs, the working stroke of the same mold, using nitrogen gas springs die springs mold height than the height of many small use;
(2) the biasing force in the entire trip, you can maintain a substantially constant;
(3) Depending on the cold stamping process requirements, the size of its biasing force, the position of the point can be adjusted at any time to adjust accurate, convenient in mold design and debugging, it can easily achieve biasing force balance;
(4) to simplify the die pressure and discharging structure, simplified mold design, mold manufacturing cycles shorten;
(5) improve the quality of stamping parts, punching parts to ensure stable quality, shorten the time to replace the mold in the press, improve labor productivity, reduce costs;
(6) long life, safety, reliability, installation and maintenance simple, reliable and convenient;?
(7) applies to the device as a cushion without any external power source.
Chat !