Trying to find the appropriate motor for a sliding door .Please help

  • Context: Engineering 
  • Thread starter Thread starter CuriousNotion
  • Start date Start date
  • Tags Tags
    Motor Sliding
Click For Summary
SUMMARY

The discussion focuses on selecting an appropriate motor for a sliding door system weighing 80kg per door, totaling 1568 Newtons. The calculations indicate that a force of 1.5696N is required to move the doors, resulting in a torque requirement of 0.047088 N/m. The user is encountering difficulties finding motors that meet these specifications, as most available options exceed 1 N/m of torque but operate at high RPMs. The conversation emphasizes the importance of gear ratios to reduce RPM while increasing torque for effective door operation.

PREREQUISITES
  • Understanding of mechanical calculations for torque and force
  • Familiarity with motor specifications, including torque and RPM
  • Knowledge of gear ratios and their impact on motor performance
  • Basic principles of rolling resistance and its calculation
NEXT STEPS
  • Research gear ratio calculations for torque enhancement
  • Explore motor options with adjustable RPM settings
  • Investigate the impact of rolling coefficients on mechanical systems
  • Learn about torque requirements for different types of sliding door mechanisms
USEFUL FOR

Mechanical engineers, robotics enthusiasts, and anyone involved in designing automated sliding door systems will benefit from this discussion.

CuriousNotion
Messages
5
Reaction score
0
My assignment is to create a sliding door with working motor,mechanical and structure calculations. However I keep having trouble when finding the appropriate motor for the sliding door movement. The doors are both 80kg (Which is 784 Newtons). The entire weight is taken is supported by the track with steel wheels that is connected to a steel rail (to prevent the pulling of the driving belt, altogether it is 1568 Newtons for the doors). this the rolling co-efficient of the steel wheels to steel rails is around 0.001.

So the force needed for the belt to pull the door is

F.c = (1568 x 0.001)=1.5696N

The diameter of the belt pulley is 3 cm so the torque needed is

Torque=force x radius = 1.5696 x 0.03 =0.047088 (N/m)Newton-metres.

Nearly all the motors I have found are over 1 (N/m) of torque but very high rpm (which I need to convert to a lower rpm which , if achieved by gear ratios ,increases the torque further. What should I do? Are my calculations wrong. is the rolling coefficient unrealisic? and is all is correct is okay to ignore a torque that is far more than that required?
 
Physics news on Phys.org
heron_ani.gif
 

Similar threads

Trying to find the appropriate motor for a sliding door
  • · Replies 1 ·
Replies
1
Views
2K
How to spec a motor for this floor testing system?
  • · Replies 10 ·
Replies
10
Views
2K
Torque & Force required to slide a gate
  • · Replies 12 ·
Replies
12
Views
21K
Undergrad Trying to figure out the forces needed to push a heavy sliding door.
  • · Replies 3 ·
Replies
3
Views
4K
Need help figuring required horsepower of electric motor
  • · Replies 4 ·
Replies
4
Views
3K
Driving a compact can crusher- stepper motor or gear motor?
  • · Replies 12 ·
Replies
12
Views
18K
Is My Motor Sufficient for a 1500kg Sliding Gate?
  • · Replies 5 ·
Replies
5
Views
11K