Hydraulic hoist is a hydraulic machine that uses hydraulic transmission to open and close the gate. It is composed of hydraulic system and hydraulic cylinder as the main body, and also includes oil pump, crude motor, oil tank, oil filter, hydraulic control valve and other components. This kind of machinery plays an important role in hydraulic engineering.
Technical parameter
| Category | Hoist model | Door opening force (KN) |
Opening and closing speed (m/min) |
Lift: below the track (m) |
Center distance of hanging points (m) |
Gauge (m) |
Total electric power (kw) |
Machine weight (kg) |
| QT/M-250 | 250 | 2.2 | 12 | 2.5 | 11 | 5210 | ||
| QT/M-400 | 400 | 1.95 | 9 | 3 | 15 | 8140 | ||
| QT/M-630 | 630 | 1.5 | 13 | 3.5 | 22 | 11700 | ||
| Double suspension points | QT/M-2×160 | 2×160 | 2.3 | 11 | 3-10 | 2 | 15 | 6890 |
| QT/M-2×250 | 2×250 | 2.2 | 12 | 3-11 | 2.5 | 22 | 8100 | |
| QT/M-2×400 | 2×400 | 1.95 | 9 | 4.1-10 | 3 | 30 | 14220 | |
| QT/M-2×630 | 2×630 | 1.5 | 11 | 4.1-10 | 3.5 | 22X2 | 20840 |
| Category | Hoist model |
Door opening force (KN) |
Door opening height (m) |
Door opening speed (m/min) |
Center distance of hanging points (m) |
Total electric power (kw) |
Machine weight (kg) |
| Double suspension points | QHQ-2×50 | 2×50 | 10 | 1.94 | 3.3-9 | 3.7 | 2916 |
| QHQ-2×80 | 2×80 | 10 | 1.34 | 2.6-9 | 3.7 | 5700 | |
| QHQ-2×100 | 2×100 | 10 | 1.34 | 2.6-9 | 5.5 | 5710 | |
| QHQ-2×160 | 2×160 | 10 | 1.8 | 5-10 | 11 | 9245 | |
| QHQ-2×250 | 2×250 | 15 | 1.52 | 4-12 | 15 | 14400 |
Working principle
It mainly relies on the motor to drive the output pressure oil of the bidirectional oil pump, and controls the opening and closing of the gate by driving the piston rod through the oil circuit integrated block and other components. The hydraulic system is a set of pump station including oil pump motor unit, frame, fuel tank (including: air filter, maximum and minimum oil level gauge, oil temperature gauge, etc.), control valve group, cylinder bypass valve group, return oil filter, pressure controller, pressure transmitter, liquid level transmitter and all components indicated on the hydraulic system schematic diagram.
Features
Fewer mechanical parts, simple structure, compact, light weight, small space, easy to arrange.
Due to the principle of static pressure, the use of small power can get a large force, so its opening and closing capacity is large.
Smooth work, good buffering performance, oil filled oil circuit system, good lubrication components, wear, corrosion are minimal, long life.
Simple maintenance, mainly to keep the oil clean, so the operation is safe and reliable.
Easy to achieve standardization, serialization, and electrical cooperation, easy to achieve automation.
Hydraulic hoist is widely used in water conservancy engineering, water supply and drainage, sewage treatment, power industry, chemical industry and other fields. In hydraulic engineering, it is used to open and close sluice gates to control the regulation of water flow. In the field of water supply and drainage and sewage treatment, it is used to open and close various valves to control the direction and flow of water; In the power industry, it is used to open and close the water valves of various water turbines and generator sets, and carry out the maintenance and overhaul of water turbines and generator sets; In the chemical industry, it is used to open and close various pipes and valves to control the flow and flow of chemical substances.
Hydraulic hoist has been widely used in many fields for its unique advantages, and plays an irreplaceable role in water conservancy projects. With the continuous progress of technology, the performance and application range of hydraulic hoist will continue to improve and expand.
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