What is the force of the spring
Publish: 2021-04-16 08:56:53
1. Besides the spring size, the design data of pressure spring need to calculate the maximum load and displacement size; Spring constant: expressed by K, when the spring is compressed, the load (kgf / mm) for every 1 mm distance increase; Spring constant formula (unit: kgf / mm): k = (g) × ｄ４)／８ × Ｄｍ３ × NC) g = steel molus of wire rod: piano wire g = 8000; Stainless steel wire g = 7300; Phosphor bronze line g = 4500; Brass wire g = 3500d = wire diameter do = od = outer diameter Di = id = inner diameter DM = MD = middle diameter do DN = total number of turns NC = effective number of turns = n-2 spring constant calculation example: wire diameter = 2.0mm, outer diameter = 22mm, total number of turns = 5.5 turns, steel wire material = piano wire k = (G × ｄ４)／８ × Ｄｍ３ × Ｎｃ＝８０００ × ２４／８ × ２０３ × 5) = 0.571kgf/mm, the K value of tension spring is the same as that of pressure spring. The initial tension of tension spring: the initial tension is equal to the force required to pull apart the close springs and coils. The initial tension occurs after the spring is rolled and formed. In the proction of tension spring, e to the different steel wire material, wire diameter, spring index, static electricity, grease, heat treatment, electroplating and so on, the initial tension of each tension spring is uneven. Therefore, when installing the tension spring of various specifications, it should be pre pulled until the distance between the parallel coils is slightly separated. The force required is called the initial tension. Initial tension = P - (k) × F1) = maximum load - (spring constant) × Tensile length) torsion spring constant: expressed in K, when the spring is twisted, every increase of 1 ° Load of torsion angle (kgf / mm). Formula of spring constant (unit: kgf / mm): k = (E) × ｄ４)／１１６７ × Ｄｍ × ｐ × Ｎ × R) E = steel molus of wire: piano wire e = 21000, stainless steel wire e = 19400, phosphor bronze wire e = 11200, brass wire e = 11200d = wire diameter do = od = outer diameter Di = id = inner diameter DM = MD = pitch diameter do DN = total number of turns r = arm of force under load p = 3.1416
2. For the design data of pressure spring
besides the spring size, it is more necessary to calculate the load of maximum load and displacement size; Spring constant: expressed by K, when the spring is compressed, the load (kgf / mm) for every 1 mm distance increase; Spring constant formula (unit: kgf / mm): k = (g) × d4)／8 × Dm3 × NC)
G = steel molus of wire rod: piano wire g = 8000; Stainless steel wire g = 7300; Phosphor bronze line g = 4500; Brass wire g = 3500 d = wire diameter do = od = outer diameter Di = id = inner diameter DM = MD = pitch diameter do-d n = total number of turns NC = effective number of turns = n-2
calculation example of spring constant: wire diameter = 2.0 mm, outer diameter = 22 mm, total number of turns = 5.5, steel wire material = piano wire
k = (G × d4)／8 × Dm3 × Nc＝8000 × 24／8 × two hundred and three × 3．5＝0．571kgf／mm
K=(G × d4)／8 × Dm3 × Nc＝8000 × 0.84／8 × six point six three × 2) = 1.34kgf / mm
3276.8/4599.936 = 0.712358 preload 0.65
when fixed, the compression is 2mm
tension spring
the K value of tension spring is the same as that of pressure spring
initial tension of tension spring: the initial tension is equal to the force required to properly pull apart the close springs and coils, and the initial tension occurs after the springs are rolled and formed. In the proction of tension spring, e to the different steel wire material, wire diameter, spring index, static electricity, grease, heat treatment, electroplating and so on, the initial tension of each tension spring is uneven. Therefore, when installing the tension spring of various specifications, it should be pre pulled until the distance between the parallel coils is slightly separated. The force required is called the initial tension. Initial tension = P - (k) × F1) = maximum load - (spring constant) × Tensile length) torsion spring
spring constant: expressed as K, when the spring is twisted, every 1 increase in the value of ° Load of torsion angle (kgf / mm). Formula of spring constant (unit: kgf / mm): k = (E) × d4)／1167 × Dm × p × N × R)
e = steel molus of wire: piano wire e = 21000, stainless steel wire e = 19400, phosphor bronze wire e = 11200, brass wire e = 11200 d = wire diameter do = od = outer diameter Di = id = inner diameter DM = MD = pitch diameter do DN = total number of turns r = arm of force under load p = 3.1416.
besides the spring size, it is more necessary to calculate the load of maximum load and displacement size; Spring constant: expressed by K, when the spring is compressed, the load (kgf / mm) for every 1 mm distance increase; Spring constant formula (unit: kgf / mm): k = (g) × d4)／8 × Dm3 × NC)
G = steel molus of wire rod: piano wire g = 8000; Stainless steel wire g = 7300; Phosphor bronze line g = 4500; Brass wire g = 3500 d = wire diameter do = od = outer diameter Di = id = inner diameter DM = MD = pitch diameter do-d n = total number of turns NC = effective number of turns = n-2
calculation example of spring constant: wire diameter = 2.0 mm, outer diameter = 22 mm, total number of turns = 5.5, steel wire material = piano wire
k = (G × d4)／8 × Dm3 × Nc＝8000 × 24／8 × two hundred and three × 3．5＝0．571kgf／mm
K=(G × d4)／8 × Dm3 × Nc＝8000 × 0.84／8 × six point six three × 2) = 1.34kgf / mm
3276.8/4599.936 = 0.712358 preload 0.65
when fixed, the compression is 2mm
tension spring
the K value of tension spring is the same as that of pressure spring
initial tension of tension spring: the initial tension is equal to the force required to properly pull apart the close springs and coils, and the initial tension occurs after the springs are rolled and formed. In the proction of tension spring, e to the different steel wire material, wire diameter, spring index, static electricity, grease, heat treatment, electroplating and so on, the initial tension of each tension spring is uneven. Therefore, when installing the tension spring of various specifications, it should be pre pulled until the distance between the parallel coils is slightly separated. The force required is called the initial tension. Initial tension = P - (k) × F1) = maximum load - (spring constant) × Tensile length) torsion spring
spring constant: expressed as K, when the spring is twisted, every 1 increase in the value of ° Load of torsion angle (kgf / mm). Formula of spring constant (unit: kgf / mm): k = (E) × d4)／1167 × Dm × p × N × R)
e = steel molus of wire: piano wire e = 21000, stainless steel wire e = 19400, phosphor bronze wire e = 11200, brass wire e = 11200 d = wire diameter do = od = outer diameter Di = id = inner diameter DM = MD = pitch diameter do DN = total number of turns r = arm of force under load p = 3.1416.
3. What you asked may be the calculation method of spring tension
for the same spring, the tension is directly proportional to the degree of deformation (within the elastic limit)
if it is high school, f = KX, f is the elastic force, K is the stiffness coefficient, X is the shape variable, which is the change of the length compared with the original length
in junior high school, the tension of the spring is calculated by balance.
for the same spring, the tension is directly proportional to the degree of deformation (within the elastic limit)
if it is high school, f = KX, f is the elastic force, K is the stiffness coefficient, X is the shape variable, which is the change of the length compared with the original length
in junior high school, the tension of the spring is calculated by balance.
4. Is there no coefficient of elasticity (k)? F＝k Δ l
5. For the same spring, the tension is directly proportional to the deformation degree (within the elastic limit)
in the case of high school, f = KX, f refers to the elasticity, K refers to the stiffness coefficient, X refers to the shape variable, that is, the length change compared with the original length
in the case of middle school, the tension of the spring is calculated by balance
in the case of high school, f = KX, f refers to the elasticity, K refers to the stiffness coefficient, X refers to the shape variable, that is, the length change compared with the original length
in the case of middle school, the tension of the spring is calculated by balance
6. Unknown_Error
7. According to Hooke's law, within the elastic limit, the elastic force of the spring is proportional to the shape of the spring, the mathematical expression is
F = KX
, k the stiffness coefficient of the spring (determined by the spring itself), x the shape variable of the spring. Substituting the data, the force of the spring in the spring dynamometer can be calculated.
F = KX
, k the stiffness coefficient of the spring (determined by the spring itself), x the shape variable of the spring. Substituting the data, the force of the spring in the spring dynamometer can be calculated.
8. F = 1 / 2kx, f is the size of the elastic force, unit Newton (n), K is the proportional coefficient (n / M), X is the spring variable, unit meter (m), pull the spring to the longest, measure out x can be found, hope to adopt
9. Besides the spring size, the design data of pressure spring need to calculate the maximum load and displacement size
· spring constant: expressed by K, when the spring is compressed, the load (kgf / mm) increases by 1 mm
· spring constant formula (unit: kgf / mm):
G = steel molus of wire rod: piano wire g = 8000; Stainless steel wire g = 7300, phosphor bronze wire g = 4500, brass wire g = 3500
d = wire diameter
do = od = outer diameter
Di = id = inner diameter
DM = MD = pitch diameter = do-d
n = total number of turns
NC = effective number of turns = n-2
calculation example of spring constant:
wire diameter = 2.0mm, outer diameter = 22mm, total number of turns = 5.5, Steel wire material = piano steel wire
tension spring
the K value of tension spring is the same as the calculation formula of pressure spring
· initial tension of tension spring: the initial tension is equal to the force required to pull apart the close springs and coils, and the initial tension occurs after the spring is rolled and formed. In the proction of tension spring, e to the different steel wire material, wire diameter, spring index, static electricity, grease, heat treatment, electroplating and so on, the initial tension of each tension spring is uneven. Therefore, when installing the tension spring of various specifications, it should be pre pulled until the distance between the parallel coils is slightly separated. The force required is called the initial tension
· initial tension = P - (k) × F1) = maximum load - (spring constant) × Tensile length)
torsion spring
· spring constant: expressed as K, when the spring is twisted, every 1 increase in the value of ° Load of torsion angle (kgf / mm).
· spring constant formula (unit: kgf / mm):
e = steel molus of wire: piano wire e = 21000, stainless steel wire e = 19400, phosphor bronze wire e = 11200, Brass wire e = 11200
d = wire diameter
do = od = od
Di = id = ID
DM = MD = pitch diameter = do-d
n = total number of turns
R = arm of force acting on load
P = 3.1416
· spring constant: expressed by K, when the spring is compressed, the load (kgf / mm) increases by 1 mm
· spring constant formula (unit: kgf / mm):
G = steel molus of wire rod: piano wire g = 8000; Stainless steel wire g = 7300, phosphor bronze wire g = 4500, brass wire g = 3500
d = wire diameter
do = od = outer diameter
Di = id = inner diameter
DM = MD = pitch diameter = do-d
n = total number of turns
NC = effective number of turns = n-2
calculation example of spring constant:
wire diameter = 2.0mm, outer diameter = 22mm, total number of turns = 5.5, Steel wire material = piano steel wire
tension spring
the K value of tension spring is the same as the calculation formula of pressure spring
· initial tension of tension spring: the initial tension is equal to the force required to pull apart the close springs and coils, and the initial tension occurs after the spring is rolled and formed. In the proction of tension spring, e to the different steel wire material, wire diameter, spring index, static electricity, grease, heat treatment, electroplating and so on, the initial tension of each tension spring is uneven. Therefore, when installing the tension spring of various specifications, it should be pre pulled until the distance between the parallel coils is slightly separated. The force required is called the initial tension
· initial tension = P - (k) × F1) = maximum load - (spring constant) × Tensile length)
torsion spring
· spring constant: expressed as K, when the spring is twisted, every 1 increase in the value of ° Load of torsion angle (kgf / mm).
· spring constant formula (unit: kgf / mm):
e = steel molus of wire: piano wire e = 21000, stainless steel wire e = 19400, phosphor bronze wire e = 11200, Brass wire e = 11200
d = wire diameter
do = od = od
Di = id = ID
DM = MD = pitch diameter = do-d
n = total number of turns
R = arm of force acting on load
P = 3.1416
10.
The calculation formula of elastic force: F = KX, K is called stiffness coefficient of spring (also known as stubborn coefficient or elastic coefficient), which is equal to the elastic force when the spring extends (or shortens) unit length. The unit is Newton per meter and the symbol is n / m
The value ofk is related to the properties of the material. The difference between the soft and hard springs means that their stiffness coefficients are different. And the stiffness coefficients of different springs are generally different. The negative sign in the above expression indicates that the force proced by the spring is opposite to its extension (or compression) direction
Elastic definition: the shape or volume change of an object under the action of force is called deformation. When the external force stops acting, the deformation that can be recovered is called elastic deformation. In order to restore the original state of a deformed object, it is necessary to exert a force on the object in contact with it. This effect is called elasticity. That is, within the scope of elastic limit, the force proced by an object to the applied force that deforms the object is called elastic forcethe interactions observed in daily life, whether they are pushing, pulling, lifting, or pulling trains, forging workpieces, hitting balls, bowing and archery, all occur when objects contact with each other, which can be called contact force. According to its nature, contact force can be summarized as elastic force and friction force, which are essentially caused by electromagnetic force
Elastic force is a kind of contact force, which can only exist in the place where objects contact each other, but it doesn't necessarily have the effect of elastic force between objects that contact each other. Because the generation of elastic force not only needs contact, but also interactionthe elastic force is proced between the objects which are in direct contact and have elastic deformation. Generally speaking, pressure, supporting force and pulling force are elasticity. The direction of elasticity is always opposite to the direction of deformation. The direction of pressure or supporting force is always perpendicular to the supporting surface and points to the pressed or supported object
Generally speaking, the pulling force is also elastic. The pulling force of the rope is the elastic force of the rope to the object pulled. The direction is always along the rope and points to the direction of the rope contractionHot content