Processing wire = module 6.3 × 3.1416 = 19.79 mm *
The calculation formula of worm gear and worm gear:
1. Transmission ratio = number of worm gear teeth ÷ number of worm heads
2. Center distance = (pitch diameter of worm gear + pitch diameter of worm) ÷ 2
3. Worm gear diameter = (number of teeth + 2) × module
4. Pitch diameter of worm gear = module × number of teeth
5. Worm screw pitch diameter = worm outer diameter – 2 × module
6. Endless wire = π × module × number of heads
7. Helix angle (angle of attack) tgB = (module × number of heads) ÷ pitch diameter of the worm
Lead of worm = π×module×number of heads
Module = diameter of graduation circle/number of teeth
Head count refers to the number of spirals on the screw;
The modulus refers to the size of the spiral on the screw, that is, the larger the modulus, the more “pillar-mounted” the spiral on the screw is (in Northeast dialect this means larger and stronger).
The diameter coefficient refers to the thickness of the screw.
Module: The gear graduation circle is the basis for designing and calculating the size of each part of the gear, and the circumference of the gear graduation circle = πd = zp, so the diameter of the graduation circle
d = zp/π
Since π is an irrational number in the above formula, it is not practical to position the graduation circle as a reference. In order to facilitate calculation, manufacturing and inspection, the ratio p/π is artificially specified as simple values, and this ratio is. called the module Number (module), represented by m, that is to say either
Its unit is mm.
It follows: the modulus m is a basic parameter that determines the size of the gear. If the module of the gear with the same number of teeth is larger, the size will also be larger in order to facilitate manufacturing, inspection and interchangeability. Use, the gear modulus value has been standardized.
building module
Building module refers to the standard size unit selected during building design. It is the basis for large-scale coordination in various departments such as architectural design, construction, building materials and products, construction equipment and building assemblies. Just like random dimensions, building components cannot be standardized and unified.
The value of the basic module is 100 mm, expressed in M, i.e. 1M = 100 mm. The derived module is divided into extended module and split module. The expanded module base is 3M, 6M, 12M, 15M, 30M, 60M, a total of 6, the split module base is 1/10M, 1/5M, 1; / There are 3 2M in total. The use of 3M is stipulated in the “National Standards Construction Unified Module System of the People’s Republic of China” to not only meet applicable requirements, but also reduce the types of component specifications.
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