How to calculate the radial force produced by gear meshing

1. The bending radius of the bent steel pipe should be

1
, and the cold bending should not be less than
4
times of the outer diameter of the pipe< When hot bending, it should not be less than
3.5 times of the outer diameter of the pipe< The stamping elbow should not be less than the outer diameter of the pipe

4
, the welding elbow should not be less than
1.5 times of the outer diameter of the pipe.

2. Bending radius generally depends on the material, space, design capacity requirements and other factors, so it is considered in many aspects.

3. Shear stress calculation is adopted. The torque of shear force of pipe section to pipe axis is torque. The shear force can be obtained by the proct of the maximum allowable shear stress and the cross-sectional area of the pipe.

4.

What is perpendicular to the diameter on the dividing circle is the circumferential force

The direction of the circular force is opposite to the motion direction on the driving wheel and the same as the motion direction on the driven wheel; The direction of the radial force points to the axis of the two gears; The direction of the axial force is determined by the helical direction of the tooth and the rotation direction of the gear

for the driving wheel, the left and right hand rule can be used to judge: the left screw uses the left hand, the right screw uses the right hand, the thumb is straight and parallel to the axis, and the other four fingers hold the axis along the rotation direction, then the direction of the thumb is the axial force direction of the driving wheel, and the axial force direction of the driven wheel is opposite to that of the driving wheel

extended data:

circular force can be decomposed into several parts (circular) force or couple without changing the effect on the figure

The

translation theorem is not completely applicable to circular force

rotation --- the movement of a circular body around the center of moment under the action of circular force is called rotation, also known as fixed axis rotation. The moment center line perpendicular to the action surface of the circumferential force is called the

rotation axis; It is usually specified that the counterclockwise rotation is positive. The direction of the circular force at a certain point on the circle points to the rotating side, and changes with the rotation

around the circle

5.

The radius of pipe elbow is calculated as follows:

radius = perimeter ÷ two ÷ π 3.14)

based on: PI

PI is the ratio of circumference to diameter of a circle, usually in Greek letters π Read as P à i) Means, π Is a constant (approximately equal to 3.141592654), representing the ratio of circumference to diameter. It is an irrational number, that is, infinite non cyclic decimal. In daily life, 3.14 is usually used to represent PI for approximate calculation

extended data

formula related to circle:

1, circle area: s= π r²， S= π( d/2)² D is the diameter and R is the radius)

The area of semicircle: s semicircle= π r^2)/2 R is the radius)

3. Circle area: s big circle - s small circle= π( R ^ 2-r ^ 2) (R is the radius of large circle, R is the radius of small circle)

The circumference of the circle: C = 2 π R or C= π d D is the diameter and R is the radius)

5. Circumference of semicircle: D+ π d) / 2 or D+ π r D is the diameter and R is the radius)

6. Divide the area of the circle where the sector is located by 360 and multiply by the angle n of the center angle of the sector circle, as follows:

s = n / 360 ×π r²

S= π r² × L/2 π R = LR / 2 (L is arc length, R is sector radius)

6.

The radius of gyration of the steel pipe is the distance between the concentration point of the object's differential mass assumption and the axis of rotation, and its value is the square root of the quotient of the moment of inertia of any section divided by the area of the section, that is, the radius of gyration = (moment of inertia / area of the section) ＾ - 2. It is also equal to the moment of inertia divided by the total mass and then squared. That is radius of gyration = (moment of inertia / total area of cross section) ＾ 2

extended data:

the radius of gyration is related to the centroid axis of steel pipe section. The minimum radius of gyration generally refers to the smaller of the radius of gyration of two centroids in asymmetric section (such as unequal angle steel). When calculating the slenderness ratio of steel pipe, if the calculated length of steel pipe in plane and out of plane is equal, its slenderness ratio should be calculated with the minimum radius of gyration

The radius of gyration of

single steel pipe can be simplified as the transverse radius of gyration of single steel pipe model with uniform mass multiplied by a small correction factor. If the non-uniform steel pipe is simplified to a steel pipe with the same length, width and height and uniform mass distribution, the analytical value of the radius of gyration is about 0.29 times

7. Generally, according to the empirical data, it should be 2.5 times larger than the outer diameter of the pipe

8. Unknown_Error

9. Radius: 10 cm = 0.1 M

side area of one: 3.14 × two × zero point one × 5 = 3.14 (M2)

area of three root coating: 3.14 × 3 = 9.42 (M2)

total antirust paint required: 9.42 × 0.2 = 1.884 (kg)

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