Win Win Co.,Ltd : TRACTION DRIVE SPEED ACCELERATOR

Product Detail :

FEATURES

Basic principle

Power of the traction drive is transmitted by the rolling contact mechanism via oil film of traction grease characterized by high viscosity at high pressures.

Contact pressure P is created at each contact surface on planetary rollers, a sun roller and a stationary housing, which are assembled with elastic deformation.
By this pressure, the oil films changes to high viscosity one (only when contact pressure P is imposed)
so that the power can be transmitted at the roller contact area.

The ranction force T is formulated by Equation (1).

T = µP……… (1)

where, µ:Traction coefficient, P:Contact pressure

This unit is a speed increasing device which the revolution of the planetary roller is used for input side
and the rotation of the sun roller is output side.
The speed increasing ratio is formulated by Equation (2).

N = 1 + D/d………(2)

where, D:Bore diamter of stationary housing
d:Outside diameter of sun roller

Features

Positioning Block
(Optional for use on M/C)
The positioning block and pin mechanism supplies coolant to
the tool.

Orientation Ring
The fitting positon of a positioning block differs among machining centers.
The position can be adjusted by rotating
the orientation ring whithin 360°.

Positioning Pin
"One-touch" adjustment, with in a height range of 40mm.

Coolant Nozzle
The angle adjustment of the coolant nozzle can be made easily by hand.
The sprya angle of the coolant is adusted to match the inserted cutter length.

Nut
The balance adjustment is already made in the factory.

Collet
Only a under super precision collet, runout within 3 microns, should be used.Various sizes can be supplied by mm unit.Please order sizes to match the shanks of tools to be used.

More widely usable, due to its adaptability to a great variety of M/C spindles.

Cutters
A drill, end mill and grinding wheel with a straight can be applied.

Grinding
wheel End mill Dril

ATC-Ready		Low Vibration
Compact and light, the TDU is ready for ATC... with no extra attachments necessary.		The Traction Drive Unit is particularly smooth-running, and without noise vibration, it even makes grinding possible on your M/C.

Transmission Power		High Speed
A stable torque transmission produced stable rpm, unlike air motor speed accelerators.		Since the traction drive is run by a transmission mechanism based on rolling contact high lubrication can be maintained even at high speed rotation. The uses of ceramic bearings and through-body coolant are incorporated to ensure reliable, long-lasting high speed operation.

A complete series supports a full range of applications.

	Super rigid Type	Standard Type
Type	TDU40	TDU17
Speed increasing ratio	3.4×	6×
Speed (rpm)	MAX.12,000	MAX.30,000
Output torque (Nm)	7	1
Output power (kw) *1	8.8	3.1
Taper *2	BT50	BT40/BT50
Tool grip diameter(mm)	Φ1.5∼20	Φ0.5∼10
Net weight (kgW)	11.5	5.4/7.9