Features of gearbox products

1.Features of gearbox products

  Based on the characteristics of the grain and oil industry, we have developed a new heavy-duty gearbox. For the complex operating conditions of steam frying    pans, our company has made improvements to the product to increase its load-bearing capacity and efficiency;

  Suitable for 1.2 meters * 3 layers to 4 meters * 10 layers series steam fryers/steam spools;

  Power range: 7.5KW/6 level -320KW/6 level;

  Convenient installation: Provide installation base, making it easy for users to debug and install.

2.Gearbox Product Features

Gear

 High precision gear machining with gear accuracy of AGMA11-12 or DN5-6

 High wear-resistant gear with a tooth surface hardness of 59+3HRC

 High life gear design, gear load life is calculated according to the infinite life design principle

 Both the tooth surface and tooth profile adopt FLENDER's leading modification technology to ensure minimum noise and eff icient transmission

Heat dissipation performance

Heat dissipation performance The Flander gearbox not only has high transmission efficiency, but also has good heat dissipation performance

 Larger box heat dissipation surface area

 Optional configuration - large fan and new fan shroud

 Optional configuration - forced lubrication ← external cooling

Bearing

 The rolling bearing adopts internationally renowned brands

 The thrust bearing adopts modular design, which can be flexibly customized according to customer requirements

Modular design

    The adoption of a new modular unit structure for the Flanders gearbox greatly reduces the variety of components, resulting in the vast majority of components being in stock, enabling the worldwide availability of Flanders gearboxes in the short term

Shaft Seal

Using a combined seal can prevent dust particles from entering the gearbox, making it reliable and stable in a dust environment.

Infinite Life design

The Flander gear is designed for an infinite life and has a longer service life under equal stress conditions. 

3.Model Selection Calculation Example

Motor power             P1=500KW  

Motor speed             n1=1500rpm

Shaft power             P2=400KW

Output speed            ≈9rpm

Installation space        Large indoor space

Service coefficient       Shaft to shaft power greater than 2

Maximum ambient temperature  40℃

Axial force of output shaft  Fa=500KN

Installation method        Vertical installation

Output shaft d2          Solid shaft

Rotation direction of output shaft d2  Counter clockwise rotation facing the output shaft

Auxiliary transmission model requirements  Output speed of main reducer during auxiliary drive

≈0.5rpm,The torque is 1.5 times that of the main reducer drive

4.Gearbox design

Select the main gearbox type

3.1 Determine transmission ratio

i=n1/n2=1500/9≈167 

The corresponding nominal speed ratio is 160

3.2 Determine the rated power of the gearbox

3.3 Determine the layout form

Select a straight axis gearbox according to equipment requirements

Layout A (recommended for counterclockwise rotation of the output shaft)

3.4 Determine specifications and models

The rated power of 844KW can meet the requirements, and the model B4SV25A160 is determined

Choose lubrication and cooling methods

  According to the selection of B4SV25, the recommended lubrication and cooling method is forced lubrication with water and oil cooler

  If you have specific requirements for lubrication and cooling methods, please feel free to inquire

Verify the axial force of the output shaft

Select auxiliary transmission

   According to the selected B45V25, the corresponding auxiliary transmission model is KF169

  If you have specific requirements for auxiliary transmission, please feel free to inquire

5. Overview of Basic Types of Gearboxes

Further details required when ordering:

  Transmission ratio I, arrangement forms A,B,C,D, etc.

Example B3SH 11

  Orthogonal shaft gearbox, three-stage transmission, arrangement A, transmission ratio i=16, solid shaft output.

  Horizontal installation, size 11

6. Performance characteristics of gearbox

 Design

  EASTWELL gearbox adopts a new design, and its unique innovation lies in:

 The types of parts are reduced and the number of specifications is increased.

 With the increase of transmission power, the operation reliability is improved.

   A non-contact and wear-resistant labyrinth sealing device with excellent performanc e can be adopted.

 Flanged shafts suitable for installation in narrow spaces can be provided (please inquire).

Installation mode

 EASTWELL gearboxes can be installed horizontally and vertically.

 Other installation forms can also be provided, please inquire.

 The standard gear box can be installed with flanges by adding different accessories, such as motors.

 Gearbox floating base or backstop can meet customer's needs well.

Noise characteristics

 The latest design concept was adopted and the noise characteristics of the gearbox were significantly improved by the following ways:

 Grinding technology of bevel gear.

 Using MASAK computer program to design the box structure for absorbing noise.

 Achieve extra large tooth surface contact ratio.

Heat dispersion

 EASTWELL gearbox not only has high transmission efficiency, but also has good heat dissipation performance, because:

 The surface area of the box body is increased,

 A non-contact labyrinth sealing device can be adopted,

 Adopt large fan and new guide fan cover.

 In the selection of gearbox, EASTWELL is based on the lower maximum allowable oil temperature. In this way, not only the operation reliability is improved, but also the oil change cycle is prolonged  and the maintenance cost is reduced.

Stock

 EASTWELL gearbox adopts a new modular unit structure, which significantly reduces the types of parts. Most of the main parts are in stock, so that EASTWELL manufacturers around the world can supply them in a short time.

7. Gear box installation method: