vbelts 0.0.1

Utilities for v-belt dimensioning

vbelts

What is vbelts?

vbelts is an open-source python package that provides utilities for the computation of factors and tables used in v-belt dimensioning.

Installation

Run the following to install:

pip install vbelts

Usage

The module is separated into submodules that provide specific functionality. To import vbelts use:

import vbelts

service_factor

To calculate the service factor for your machine, use the service_factor submodule. It requires the type of drive and hours of usage in the following format vbelts.service_factor.machine(drive_type,service_hours). An example for an axle drived belt used by 8 hours a day:

>>> vbelts.service_factor.rec_comp('axle',8)
1.5

It returns a float number.

The valid options for the drive type are:

• 'N cylinders', where N is a integer number. This is used for direct drive on combustion engines
• 'electric engine (high|normal) torque', choose between high or normal torque for electrical motors
• 'clutch', for clutch couplings
• 'axle', for axle couplings

The service_hours parameter can only receive an integer betwen 1 and 24.

profile

The v-belt profile can be determined for several different models, the main two beign Hi-Power II and Super HC. In this version only the Hi-Power II is implemented. The submodule requires the power of the drive and rpm of the axle, used in the following format vbelts.profile.hi_power_2(power, rpm). An example for a drive with 8 hp and 540 rpm:

>>> vbelts.profile.hi_power_2(8,540)
'B'

A string is returned with the choosed profile.

License information

vbelts is licensed in 3-clause BSD license. See LICENSE.txt for full information on the terms and conditions for usage of this software, and a disclaimer of all warranties.