Dam Floodgate Gantry Hoist

(Dam Floodgate Gantry Hoist)

INTRODUCTION

The dam top floodgate gantry crane is mainly used for hydraulic equipment transport, installation and maintenance of hydroelectric generating units such as floodgates, trash rack etc.

Model MQ gantry crane can be divided into two kinds: unidirectional crane and bidirectional crane. The unidirectional hoist is fixed on the gantry frame. The Gantry runs along the track on the dam. And its service zone is a line, which can only be used to lift a gate of the same row, while the double direction gantry crane is with a trolley running perpendicular to the crane traveling. Thus, the double direction gantry crane can lift the floodgate or trash racks of different rows of upstream side and the downstream side.

Detailed Photos

Features of Dam Floodgate Gantry Crane:

1. Steel plate or box-type girder, electric driving motor of lifting mechanism, gear reducing hoist;

2. The operating mechanism of the crane is driven by the motor, and the closed operating room is mounted on the frame;

3. Running buffer device and windproof rail clamp are equipped under the gantry leg;

4. The spreader moves up and down along the gate slot or around the hinge of the gate;

5. The opening and closing of the gate in the movable water is related to the size of the load and the water hydrodynamic pressure;

6. For large span gate, it needs double lifting points and keep synchronization;

7. Large Lifting capacity, low speed, low work level, generally not more than 4 m / min, only for some quick gate, it can reach 10-14 m / min;

Specification

Lifting capacity		KN	630
Span		m	4.5
Lifting height		m	28（under rail 21m）
Work classifications			Q3（middle class)
Speed	Main lifting	m/min	1.57
	travelling		19.4
Total power		KW	64
Crane rail recommended			QU80
Max. wheel loading		KN	577
Power			Three-phase AC 50Hz 380V

Lifting capacity		KN	2×1600	2×4000	2×4500	2×5000
Lifting height		m	28	27	57	127
Work classifications			Q3（Middle class)
Speed	main lifting	m/min	1.73	1.75	3.28	2.5
Dimensions	A	mm	10400	4500	8300	8300
	B		2583	4134	4340	4950
	C		3200	4700	4500	4500
	D		4285	5420	6100	8800
	E		3340	6300	6500	6600
	F		2202	4144	4126	3950
	G		3100	3500	3500	4800
	H		1200	2200	2200	1900
Total weight		t	54	153	192	138
Power source			Three-phase AC 50Hz 380V