BRIDGE CUTTING SAW

WIPO Patent Application WO/2011/124143

A1

A bridge cutting saw includes a trolley (1), two vertical beams (2) provided with linear guide rails (21) and fixedly connected with two sides of the trolley (1), a beam (3) walking on the linear guide rails (21) of the vertical beams, a pulley (4) walking on the beam (3), a rotatable and elevating sawing machine (6) fixed on the pulley (4). The sawing machine (6) is fixed on a rotary shaft (61) which is fixed on an elevating slider (5) by bearings. A rotary motor (7) is fixed on the elevating slider (5), and the output shaft of the rotary motor (7) is connected with the rotary shaft (61) via a synchronous belt (72). Linear guide rails (53) in parallel with each other are fixed on two sides of the elevating slider (5) respectively, and second sliding blocks (45) are located on two sides of the pulley (4) to match with the linear guide rails (53). An elevating motor (8) is fixed on the top of the elevating slider (5), the output shaft of the elevating motor (8) is connected with a screw rod (81) which is paralleled with the linear guide rails (53), and a driving nut (82) is fixed on one side of the pulley (4) to match with the screw rod (81). The assembly is provided with a sawing machine driven by the synchronous belt and linear guide rails for elevating purpose, so that high precision is ensured in elevating and rotating process, and the movement gap is eliminated and the vibration of the assembly is effectively controlled.

LIN TIANHUA (CN)

PCT/CN2011/072516

October 13, 2011

April 07, 2011

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FUJIAN PROVINCE HUALONG MACHINERY CO LTD (CN)
LIN TIANHUA (CN)

B28D1/04

DE3616922A1	1987-11-26
DE4332630A1	1995-03-30
CN2272805Y	1998-01-21
CN2302105Y	1998-12-30

SUNRAY INTELLECTUAL PROPERTY ATTORNEYS (CN)
上海旭诚知识产权代理有限公司 (CN)

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