CD1 electric hoist and MD1 electric hoist are two types of mechanical transmissions commonly used in China. Two types of electric hoists have their common components. The three parts form the overall structure, one for the operating structure (fixed There is no type, two are electrical devices, and three are lifting structures.
First, the operating agency electric car, running motor, running reducer, driven car and other components together constitute the operating agency. Hang the host for reciprocating movement. Its operating speed is generally 20m/min, also can choose 30m/min. When 1~5t rises ≥12m, an additional trolley is added.
Second, the electrical device CD1, MD1 electric hoist electric device has an electrical control box (0.25t no), button switch stopper and connecting wires and other components.
The operating voltage of the push button switch is generally 380V or 36V. According to the direction and symbol shown on the push button switch, the button is pressed properly, and the operation of the hoist can be controlled by the pull-in and break-out of the relay in the control box.
III. Lifting structure The hoisting structure includes the main part of the whole machine. The hoisting structure is driven by the hoisting motor through the coupling through the hollow shaft of the speed reducer to rotate the drum, so that the wire rope wound on the drum drives the hook. The device rises or falls.
When lifting height H=6m, a claw coupling is used to connect the motor shaft and the input shaft of the reducer. When H≥9m, add intermediate shaft and rigid coupling. When H≥18m, a support frame is used to reinforce the rigidity of the intermediate shaft to ensure smooth rotation.
1 Lifting motor The lifting motor uses a conical rotor motor with a large starting torque to adapt to the frequent direct starting of the intermittent operation of the product. The CD1 type hoist is equipped with a ZD type single-speed motor, and the MD1 type hoist is equipped with a ZDS type two-speed motor. The ZDS type motor has a ratio of normal speed to slow speed of 10:1.
2 Reducer 0.25t hoist reducer is a straight-toothed planetary transmission structure, and all other reducers use helical gear three-stage deceleration. Gears and shafts are machined from alloy structural steels or high-quality carbon steels and are heat treated to ensure their reliability and longevity. The box and lid are made of cast iron, which has good shock absorption and reliable sealing.
3 Reel Device The reel is made of cast iron or seamless steel pipe and transmits power using splines. The reel cover is made of welded steel plate.
The reel device is the central part of the hoist, which is connected with the operating mechanism through the balance beam, and the two ends are respectively connected with the hoist speed reducer and the motor, and the lower part is jointly operated by the steel wire rope and the hook device, and the limiter is installed at the front and the top of the cover. Guide rod device.
4 Hook The device hook is made of steel forging, and the thrust ball bearing is used to connect with the shell through the hook beam so that the hook can run freely. The 5t and below hook devices are single-pulley, and the 10t and above are double-pulleys. formula.
First, the operating agency electric car, running motor, running reducer, driven car and other components together constitute the operating agency. Hang the host for reciprocating movement. Its operating speed is generally 20m/min, also can choose 30m/min. When 1~5t rises ≥12m, an additional trolley is added.
Second, the electrical device CD1, MD1 electric hoist electric device has an electrical control box (0.25t no), button switch stopper and connecting wires and other components.
The operating voltage of the push button switch is generally 380V or 36V. According to the direction and symbol shown on the push button switch, the button is pressed properly, and the operation of the hoist can be controlled by the pull-in and break-out of the relay in the control box.
III. Lifting structure The hoisting structure includes the main part of the whole machine. The hoisting structure is driven by the hoisting motor through the coupling through the hollow shaft of the speed reducer to rotate the drum, so that the wire rope wound on the drum drives the hook. The device rises or falls.
When lifting height H=6m, a claw coupling is used to connect the motor shaft and the input shaft of the reducer. When H≥9m, add intermediate shaft and rigid coupling. When H≥18m, a support frame is used to reinforce the rigidity of the intermediate shaft to ensure smooth rotation.
1 Lifting motor The lifting motor uses a conical rotor motor with a large starting torque to adapt to the frequent direct starting of the intermittent operation of the product. The CD1 type hoist is equipped with a ZD type single-speed motor, and the MD1 type hoist is equipped with a ZDS type two-speed motor. The ZDS type motor has a ratio of normal speed to slow speed of 10:1.
2 Reducer 0.25t hoist reducer is a straight-toothed planetary transmission structure, and all other reducers use helical gear three-stage deceleration. Gears and shafts are machined from alloy structural steels or high-quality carbon steels and are heat treated to ensure their reliability and longevity. The box and lid are made of cast iron, which has good shock absorption and reliable sealing.
3 Reel Device The reel is made of cast iron or seamless steel pipe and transmits power using splines. The reel cover is made of welded steel plate.
The reel device is the central part of the hoist, which is connected with the operating mechanism through the balance beam, and the two ends are respectively connected with the hoist speed reducer and the motor, and the lower part is jointly operated by the steel wire rope and the hook device, and the limiter is installed at the front and the top of the cover. Guide rod device.
4 Hook The device hook is made of steel forging, and the thrust ball bearing is used to connect with the shell through the hook beam so that the hook can run freely. The 5t and below hook devices are single-pulley, and the 10t and above are double-pulleys. formula.
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