HIGH LOAD-BEARING SUPPORT DEVICE FOR COAL MINE ROADWAYS
The present invention discloses a high load-bearing support device for coal mine roadways, and the device includes second support columns, a second support plate is fixedly connected to tops of the second support columns, a chute is formed at a middle part of a top of the second support plate, and s...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention discloses a high load-bearing support device for coal mine roadways, and the device includes second support columns, a second support plate is fixedly connected to tops of the second support columns, a chute is formed at a middle part of a top of the second support plate, and sliding blocks are slidably connected to left and right sides of an interior of the chute. According to the present invention, first, the support device is pushed to a proper position via omni-directional wheels, and a rocking lever is shook to drive a first threaded rod and a second threaded rod to rotate, thus driving the sliding blocks to slide inside the chute, such that second support brackets are driven to lift or lower, thereby facilitating the adjustment of a supporting height of an arch plate. |
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