WOODRUF KEYS are semicircular shaped, such
that, when installed, leave a protruding tab. The keyway in the shaft is
a semi-circular pocket, the mating part, a longitudinal slot. They are
used to improve the concentricity of the shaft and the
mating part, which is critical for high speed operation. The main
advantage of the Woodruff key is that it eliminates milling a keyway
near shaft shoulders, which already have stress concentrations.
High-Efficiency Belt Drives
Belt drives are frequently used in motor systems and offer advantages such as providing flexibility with positioning of the motor, allowing speed adjustments with the use of pulleys with differing diamaters, low maintenance requirements, decreased noise levels, and high efficiency. However, the efficiency of belt drives differ based on their type and condition.
V-type belts are most commonly used and offer efficiencies between 93 to 98%. However, their efficiency drops by about 4% by age and by an additional 5–10% with poor maintenance.
Wedge or cogged belts can maintain efficiencies that are around 2% higher than ordinary V-belts
Synchronous/flat/ribbed belts offer efficiencies between 96 to 99%, and require less maintenance. Advancements with these kinds of belts have widened their application possibilities, and it is worth exploring the potential to switch over to these.
Belt drives are frequently used in motor systems and offer advantages such as providing flexibility with positioning of the motor, allowing speed adjustments with the use of pulleys with differing diamaters, low maintenance requirements, decreased noise levels, and high efficiency. However, the efficiency of belt drives differ based on their type and condition.
V-type belts are most commonly used and offer efficiencies between 93 to 98%. However, their efficiency drops by about 4% by age and by an additional 5–10% with poor maintenance.
Wedge or cogged belts can maintain efficiencies that are around 2% higher than ordinary V-belts
Synchronous/flat/ribbed belts offer efficiencies between 96 to 99%, and require less maintenance. Advancements with these kinds of belts have widened their application possibilities, and it is worth exploring the potential to switch over to these.
The articulate or jointed arm robot (or
sometime called Anthropomorphic arms) closely resembles the human arm.
The mechanical structure has at least three rotary joints which forms a
polar coordinate system. The Figure shown an articulate robot
with 6 degree of freedom. The basic three rotary joints able Arm swap,
shoulder swivel and elbow rotations. Additional 3 revolute joints (Roll,
Yaw, Pitch) and one prismatic joint allow the robot to point in many
directions, and then reach out some radial distance.
Application area:
Arc welding
Spot welding
Assembly
cleaning/spraying
Cutting
Deburring
Die casting
Gluing/sealing
Grinding/polishing
Injection moulding
Machine tending
Material handling
Packing
Palletizing
Picking
Pre-machining
Press brake tending
Application area:
Arc welding
Spot welding
Assembly
cleaning/spraying
Cutting
Deburring
Die casting
Gluing/sealing
Grinding/polishing
Injection moulding
Machine tending
Material handling
Packing
Palletizing
Picking
Pre-machining
Press brake tending
No comments:
Post a Comment