Universal balancing machine with variable speed model 9D716V
The 9D716V balancing machine is a versatile machine with a balancing accuracy of 0.4 g*mm/kg, widely used in a variety of industries. Easily adaptable to any part weighing up to 500 kg, popular in repair shops. Quick changeover for work with different products. Infinitely variable speed control eliminates balancing of the rotor at its resonant frequency, providing accurate measurement results.
The machine includes two vibration mounts with a set of “axial stops” and a “speed sensor” bracket, as well as an electric drive and a frame. The supports and drive can move along the bed by means of a chain drive, which simplifies the adjustment for parts of different lengths. It is controlled by a control panel that is part of a freestanding electrical cabinet.
The electrical cabinet contains industrial electrical equipment including a frequency converter for continuously variable speed control of the drive. The electric drive can be a belt drive (“belt drive”) or a cardan drive (“axial drive”). The machine can have one or both drives, which makes it more versatile and reliable because the drives will duplicate each other.
The Model 9D716V Universal Balancing Machine can handle these types of parts :
- Inter-supported “shaft” type (the center of mass of the part is between the supports);
- Cantilever type (most of the part’s mass is located on one side behind the supports);
- Disc type part (if the part does not have its own bearing journals, a mandrel is used for balancing);
- A part on its own bearings.
To detect unbalance, force sensors located in the vibrating supports and a velocity sensor controlling the rotation of the part are used. The force sensors convert the vibration of the unbalanced part into digital signals. The rotational frequency of the part is also converted into electrical pulses. The information from the sensors is processed by the balancer’s computing unit and displayed in a convenient format on an output device such as a computer or a microprocessor screen.
When ordering a machine, the customer can choose one of two ready-to-use balancing systems: PB-02M (microprocessor-based system) or PAK-1 (industrial computer-based system). We can also design a special custom balancing system with the features you suggest.
- The bearing rollers are manufactured using a patented “exact barrel” grinding technology, high-precision bearings and a unique assembly technology that guarantees an unbalance detection accuracy of 0.4 gmm/kg (or even 0.1 gmm/kg by special order);
- Infinitely variable speed control of the part speed provides the ideal conditions for optimum balance;
- “MODULAR DESIGN” patented machine design with high modularity, allowing easy change of equipment characteristics when changing modules;
- Safe handling of large workpieces is ensured by the design and height of the supports and roller cassettes;
- Roller position adjustment and belt tension adjustment provide a perfect grip on the workpiece and high machine accuracy;
- The axial drive gives a rigid grip on the workpiece, ignores errors due to aerodynamic drag and allows fast acceleration/deceleration, reducing the balancing cycle. The “axial drive” quill simplifies and speeds up the balancing cycle, providing greater ease of adjustment;
Functions of the PAK-1 hardware and software package:
- Calculation of “allowable unbalance,” “drilling depth,” and “test weight” simplifies balancing by eliminating complex mathematical calculations;
- “Vector averaging” improves machine accuracy in balancing by combining multidirectional unbalance vectors;
- “Tooling eccentricity accounting” mathematically cuts off “parasitic” tooling vibration from the part being balanced;
- Distribution of unbalance on the n-plane of correction optimizes the use of available space for installation of correction weights;
- Distribution of correction weights to structurally determined points (e.g. blades, slots, holes);
- Creating, storing and printing balance reports helps to eliminate “quality of work” issues.
Main Specifications
| Parameters |
9D716V |
| Balancing rotors weight range, kg |
5 – 500 |
| Maximum rotor diameter (over the bed), mm |
1300 |
| Rotor bearin journals diameter, mm |
30 – 180 |
| Distance between rotor bearing journal centers, mm, min/max |
200 – 2000 |
| Support type |
|
| Minimal achievable residual specific unbalance, gmm/kg |
0,4 |
| Rotor rotation speed range, rpm |
300 – 1500 |
| Drive type |
Frequency-controlled asynchronous electric drive |
| Electric motor power, kW |
2,2 |
| Drive gear type |
Belt |
| Equipment |
Balancing device |
| Bed length, mm |
1600 |
* The parameter can be changed as per the customer’s request
MACHINES CAN BE DELIVERED WITH
AXIAL (CARDAN) DRIVE PARTS;
A BELT DRIVE PARTS – OPTIONAL;
COMBINED – OPTIONAL.
| The operation manual on the machine with acceptance tests reports and the basic electric circuit |
1 pc. |
| The operation manual on balancing system |
1 pc. |
