Мехатроника 1 Бөлім mechatronics

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distinguishing feature of the motion module from the general industrial drive 
is the use of the motor shaft as one of the elements of a mechanical motion 
converter. Examples of motion modules are motor-reducer, motor-wheel, motor-
drum, electrospindle.
To create modern technological machines intended for automated machine 
building, a variety of mechatronic motion modules are needed that satisfy a 
number requirements: high accuracy of implementation of executive move-
ments, reliability, durability, workability in the presence of various types of 
disturbances and over a wide range of ambient temperatures.
Requirements for the development of efforts, accuracy and speed of execu-
tive movements are dictated by the features of an automated technological 
operation, and the requirement to minimize the size of the mechatronic module 
of motion is the need to integrate it into a technological machine. 
An attempt to synthesize a mechatronic module of motion from existing 
commercially available components can lead to technically and economically 
inefficient solutions. Therefore, it is more rational to design a specialized 
mechatronic module of motion that most fully meets its official purpose.
So more rational is the design specialized mechatronic module of motion 
that best meets his official appointment. Mechatronic modules of motion are 
functional «cubes» from which you can compose complex mechatronic system.
Examples of mechatronic motion modules: mechatronic motion modules 
based on electric motors of angular and linear motion and various motion 
transducers (helical, worm, planetary, wave, etc.), gearless mechatronic motion 
modules, gearless rotary tables.
With the advent of electric motors and the beginning of a new era in the 
mechanization of technological processes, the question arose about the need for 
a broad reduction in the rotational frequencies of electric motors and obtaining 
the necessary torque. Many companies have developed various designs, 
ranging from belt and chain gears and ending with a variety of gear reducers. 
The drawback of most of these designs was their extremely cumbersome and 
inconvenient installation.
In 1927 the firm «Bauer» developed a fundamentally new design – a geared 
motor that combined an electric motor and a converter into one compact design 
module movement (reducer) and is now widely used. Since then, a huge range 
of different types of geared motors has appeared for a variety of application 
conditions, which allow us to find the optimal solution in each specific drive 
problem.
Thus, the St. Petersburg Scientific and Technological Center «Reduktor» 
(STC «Reduktor») produces single-, two- and three-stage motor-reducers: 
cylindrical (MC, MC2C, MC3C, MC2B, MC3D with a gear ratio U = 1.6...12.5, 

156
 
 

the speed of the output shaft n
2
= 450...3.55 rpm and the torque at the output 
shaft T
2
= 18...8530 Nm) [7].
Moscow Scientific and Technological Center «Privodnaya Tekhnika» (STC 
«Privodnaya Tekhnika») produces single- and two-stage motor-reducers: worm 
gears (7MWG with U = 7...10000; n
2
= 200...0.14 rpm, T
2
= 3.9...2941 Nm and 
electric motor power P
1
= 0.09...15 kW), cylinder-worm (7MChC with U = 
60...610, n
2
= 23.3...0.8 rpm, T
2
= 24...3984 Nm and P
1
= 0.02...7.5 kW) and 
cylindrical coaxial (4MCs with n
2
= 28...40 rpm and P
1
= 0.55...18.5 kW) [7].
Many foreign companies, for example, MOTOVARIO, VARVEL, MAXON, 
etc. produce different gearmotors. MAXON manufactures electric motors, 
cylindrical and planetary reducers and on their basis motor-reducers, which, 
if necessary, equipped with photo-pulse sensors (PhPS), resolvers and brakes. 
Figre 1.4
shows the block-modular motor connection system for various types of 
plan cylindrical gearboxes, as well as digital magnetic and digital photoimpulse 
sensors.
Figure 1.4 – Вlock-modular motor system
The application of the block-modular principle of the design of motor-
reducers allows combining in the module the motors and motion transducers 
of various types and capacities, thus providing a wide range of mechanical 
characteristics of the module for driving in rotation and torque.
The structural combination of the electric motor and the motion transducer 
into a single compact electric drive – the geared motor has a number of 
advantages in comparison with the outdated connection system of the electric 
motor and the drive converter through the coupling. This is a significant 
reduction in overall dimensions, a substantial reduction in the number of 
connecting parts and costs for installation, debugging and start-up.

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Thus, the geared motor is currently one of the most common types of 
electric drive. Every year millions of pieces of motor-reducers of different 
types and designs are produced all over the world, which allows satisfying all 
conceivable customer needs.

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