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Page View 30138 |
Product Information : |
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Product Name: |
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TRACTION DRIVE SPEED ACCELERATOR |
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Product Category: |
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เครื่องจักร, อุปกรณ์เกี่ยวกับเครื่องจักร, เครื่องมือกล
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Product Sub-Category: |
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9. SHOWA TOOL
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Brand: |
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SHOWA TOOL |
Product Type : |
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เครื่องมือ, เครื่องจักรและอุปกรณ์
สินค้า, ผลิตภัณฑ์
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Short Description : |
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Full-functions in a compact body. |
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FEATURES
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Basic principle
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1. |
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. |
2. |
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. |
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The ranction force T is formulated by Equation (1).
T = µP……… (1)
where, µ:Traction coefficient, P:Contact pressure |
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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)
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where, D:Bore diamter of stationary housing d:Outside diameter of sun roller |
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Features
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Positioning Block (Optional for use on M/C) The positioning block and pin mechanism supplies coolant to the tool.
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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°.
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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.
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Nut The balance adjustment is already made in the factory.
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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.
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More widely usable, due to its adaptability to a great variety of M/C spindles. |
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Cutters A drill, end mill and grinding wheel with a straight can be applied.
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Grinding wheel End mill Dril |
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ATC-Ready |
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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. |
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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. |
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A complete series supports a full range of applications.
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Super rigid Type
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Standard Type
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Type
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TDU40
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TDU17
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Speed increasing ratio
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3.4×
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6×
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Speed (rpm)
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MAX.12,000
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MAX.30,000
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Output torque (Nm)
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7
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1
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Output power (kw) *1
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8.8
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3.1
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Taper *2
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BT50
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BT40/BT50
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Tool grip diameter(mm)
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Φ1.5∼20
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Φ0.5∼10
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Net weight (kgW)
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11.5
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5.4/7.9
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*1 Max. output for each max. speed. |
*2 Other tapers are also available: |
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SK40,CV40,HSK63 equivalent to BT40. SK50,CV50,HSK100 equivalent to BT50. |
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TDU40 Super rigid Type 3.4×Spindle rev. Max.12,000rpm |
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Material : |
Aluminum alloy |
End mill : |
16mm dia. T/C, 2-blade |
Speed : |
12,000rpm |
Cut. depth : |
5mm |
Feed : |
1,000mm/min |
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Cutting Example [Groove Milling] |
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TDU17 Standard Type 6×Spindle rev. Max.30,000rpm |
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Material : |
Aluminum alloy |
End mill : |
4mm dia. T/C, 2-blade |
Speed : |
28,000rpm |
Cut. depth : |
2mm |
Feed : |
1,000mm/min |
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Cutting Example [Groove Milling] |
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Covering a wide application range…
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1. Application range |
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2. Torque transmission characteristics |
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3. Runout and Bending rigidity |
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4. Temperature rise(Temperature-Coolant temperature) |
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5. Axial displacement |
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6. Noise level |
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For catalog of TRACTION DRIVE SPEED ACCELERATOR please send a request to [email protected] |
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