SHOCK ABSORPTION DEVICE FOR ROADHEADER FOR COAL MINE

WIPO Patent Application WO/2021/129433

A1

A shock absorption device for a roadheader for coal mine. The shock absorption device comprises a fixing plate (1). Supporting plates (3) are provided in the middle of the upper surface of the fixing plate (1); the upper portions of the supporting plates (3) are rotatably connected to a rotating shaft (4); a fixed base (5) is provided in the middle of the rotating shaft (4); the middle of the fixed base (5) is rotatably connected to a main shaft (10); a driving motor (6) is provided at the right side of the upper surface of the fixed base (5); an output shaft of the driving motor (6) is fixedly connected to a first belt wheel (7); the first belt wheel (7) is connected to a second belt wheel (9) by means of a belt (8), and the second belt wheel (9) is fixedly connected to the right end of the main shaft (10); the left end of the main shaft (10) is slidably connected to the lower portion of a cutting head (13), guide rods (11) are provided on the lower surface of the cutting head (13), and the lower ends of the guide rods (11) are slidably connected to the right side of the main shaft (10); first springs (12) are fitted over the guide rods (11). The device is provided with the first springs (12), a second spring (22), and a third spring (19) for shock absorption, the shock resistant effect of the whole device is improved, and the shock absorption device is suitable for popularization and application.

LI HENG (CN)
MA ZHI (CN)
CAI MINGMING (CN)

PCT/CN2020/135975

July 01, 2021

December 12, 2020

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TAICANG MINGLONG MACHINERY CO LTD (CN)

E21C25/00; F16F15/04

CN211115995U	2020-07-28
US20170002657A1	2017-01-05
CN205445605U	2016-08-10
CN106907150A	2017-06-30
CN108825256A	2018-11-16

JIANGSU CO-FAR LAW FIRM (CN)

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