The document summarizes the design of a pharmaceutical blender. It describes the configuration including an 8 kg capacity and 20 RPM speed. It outlines the design process from defining requirements to 3D modeling individual components like the blender body, shaft, key and frame. Selection processes for components like bearings and motors are also summarized. The document provides an overview of the iterative design process to develop a custom blender within budget specifications.

2. UNDER THE SUPPORT OF
INFINITY TECHNOLOGY
DESIGN SOFTWARE
CREO PARAMETRIC 3.0
KNOWLEDGE PARTNERS
SCIENCE DIRECT, GOOGLE, BONFIGLIOLI,
INDIA MART, SKF bearing

3. MACHINE CONFIGURATION
• CAPACITY 8 KG (without including free space)
• APPLICATION HOMOGENEOUS MIXING OF AYURVEDIC POWDERS
• SPEED REDUCTION UP TO 20 RPM
• GEAR BOX TYPE WORM & WORM WHEEL (GEAR RATIO 20/1440)
• WEIGHT OF MACHINE 15KG APPROX.
• MATERIAL SS304 ( MAIN BODY ),
MS with SS302 powder coat ( support frame, shaft, keys)
• PORTABLE by using caster wheels of 80 mm diameter
• No. of components 20

4. Only at Rs. 80,000/-
Approx.

5. TYPES BLENDER

6. MARKET STUDY

7. We didn’t found any blender which fulfill our specification within budget
after all possible enquiry,
hence decided to design own pharmaceutical blender.
Here onward our Journey stars . . .

8. DESIGN SEQUENCE
•BLENDER BODY
•SHAFT
•KEY AND KEYWAY
•BEARING
•SUPPORT FRAME
•MOTOR – GEARBOX ASSEMBLY
Engineering minds gather together. . .

9. BLENDER BODY
geometry
3D
modeling
Parametric
modeling
Reason
It produces homogeneous mixture of powder material at
faster rate With minimum power consumption without any
internal complex arrangement like Blades .

10. 3D MODELING
Include non parametric design with necessary structural
mountings

11. PARAMETRIC MODELLING
• IDEAL MODEL
WORKING CAPACITY 2 KG
ROTATING SPEED 25 RPM
MATERIAL SS
TYPE V BLENDER
NON PORTABLE
Based on ideal model from research papers found in science direct
we gave parameters to our model
Dimension and volume
Volume 780032 mm3
All dimensions are in mm

12. • DENCITY=
𝒎𝒂𝒔𝒔
𝒗𝒐𝒍𝒖𝒎𝒆
• Mixing material density is 1000 kg/m3
• Mass is 8kg
• So volume is 80,00,000 mm3
• Add 50% to this volume as free space
• So required volume is 120,00,000 mm3
• Now, prepared cad model in proportion with
ideal model
• parameters who’s volume was nearly equal
to 120,00,000 mm3
Final design parameters
1.2
All dimensions are in mm

13. SHAFT DESIGN• APPROXIMATE WORKING LOAD ON SHAFT 20KG ( including motor weight )
• USING FLEXURAL FORMULA
𝑡𝑎𝑢
𝑟
=
𝑇
𝐽
=
𝐺𝜃
𝐿
• T THEORETICAL = WORKING LOAD (N) * Perpendicular distance * Bearing friction factor
= (20*9.81) * 0.22 * 0.3
= 12.94 Nm
• T OPERATING = T THEORETICAL * FOS
= 12.94 * 2 = 26 ≈ 30Nm
• NOW BY USING T OPERATING VALUE IN FLEXURAL FORMULA WE FOUND MINIMUM SHAFT DIAMETER OF
10MM
• BUT IN MARKET THERE WAS NO MOTOR- GEARBOX ASSEMBLY AVAILABLE WITH THIS T OPERATING
VALUE OF 30NM
• SO T OPERATING IS TAKEN AS 48 Nm hence final shaft diameter was 25mm
Dimension
analysis
3D
modeling

14. 3D MODEL OF SHAFT
Length of both side shaft depend on
• Avoiding sagging of whole body between support frame
• Motor – gearbox assembly mounting requirement.
It will be finalize during support frame design.

15. KEY AND KEYWAY DESIGN
• KEY TYPE TAPER KEY
• DIMENSION 8*7*70 mm AND TAPER ANGLE 6°
• MATERIAL MS with SS powder coating
• APPLICATION to restrict relative motion between main body and shaft.

16. Dimension of key and keyway were selected with the help of this chart..

17. Fit and tolerance is based on this chart..

18. SELECTION PROCESS

19. CAD MODEL OF KEY

20. BEARING SELECTION
• BEARING TYPE ROLLER BEARING
• MOUNTING TYPE PEDESTAL
• DIMENSION ID Ø 25 MM * WIDTH 44 MM
• COMPANY SKF Pvt. ltd
Type
selection
Geometry
3D model
Reason
Roller bearing carries radial load and causes surface contact. Which was suitable for
Low speed application.

21. SELECTION PROCESS
Found skf roller bearing catalogue
from google
Found rows of inner diameter of shaft
in catalogue
Then found bearing speed in
catalogue
Download cad model from last
column in same row of bearing speed.

22. CAD model

23. SUPPORT FRAME DESIGN
• CAD DESIGN APPROACH TOP-DOWN ASSEMBLY
• FRAME TYPE SQUARE AND RECTANGLE C/S TUBE
• APPROXIMATE HEIGHT 500MM
• DESIGN STYLE PARAMETRIC FREE STYLE

24. FACTORS TO REMEMBER WHILE FRAME DESIGN

25. CAD MODEL

26. MOTOR-GEARBOX SELECTION

27. GENERATED UNIQUE CODES
•GEARBOX VF49_F1_70_P63_B5_B3
•MOTOR BN63B4_230/400_50Hz_CLF_1P55_B5
Now download CAD model by register and log in with mosaico on bonfiglioli official website .

28. CAD MODEL OF MOTOR GEARBOX
ASSEMBLY

29. BILL OF MATERIAL

30. THANK YOU