Hoist Trolley Slewing Limit For Tower Crane

Products Specification

Hoist Trolley Slewing Limit For Tower Crane

Hoist limit switch For Tower Crane

Trolley limit switch For Tower Crane

Slewing limit switch For Tower Crane

Hoist Trolley Slewing Limit For Tower Crane

Hoist limit switch For Tower Crane

Trolley limit switch For Tower Crane

Slewing limit switch For Tower Crane

Tower Crane Knowledge sharing：

What is the reason and how to deal with the different noise when the tower crane rotary support is running?
In this article, the factory will analyze for you from the professional technical point of view: the reasons for the failure of the tower crane swing support, and how to deal with the problem.
1. Causes of failure: Poor lubrication of large teeth.
Solution: Go smooth.
2. Causes of failure: Inappropriate gap between large teeth and small gears.
Solution: Adjust the gap.
3. Causes of failure: Damage to the rotating body or isolation block.
Solution: exchange damaged parts.
4. Causes of failure: pitting and peeling of the Raceway surface.
Solution: rest the Raceway.
5. Cause of failure: The pretightening force of high-strength bolts is inconsistent and the difference is large.
Solution: adjust the preloading force.

Hoist Trolley Slewing Limit For Tower Crane

Hoist limit switch For Tower Crane

Trolley limit switch For Tower Crane

Slewing limit switch For Tower Crane

What about the tower hook? What are the causes and how are they disposed of?
What about the tower hook? What are the causes and how are they disposed of? The reasons for the failure of the tower hook can be divided into five situations. The following is an introduction to each situation, and the corresponding disposal methods are introduced.
1. Fault causes: Brake clearance adjustment improper.
Disposal method: adjusting clearance.
2. Fault cause: Brake brake piece wear or oil.
Disposition method: replace brake piece, clear oil.
3. Fault cause: Brake push stroke is not in place.
Disposal method: Adjust the itinerary.
4. Fault: Motor output torque is not enough.
Disposal method: check the power supply voltage.
5. Fault: Clutch damage.
Disposal method: replace clutch plate.

Hoist Trolley Slewing Limit For Tower Crane

Hoist limit switch For Tower Crane

Trolley limit switch For Tower Crane

Slewing limit switch For Tower Crane

Debugging steps of lifting height limiter in tower
Tower crane is a large mechanical equipment, its safety can not be underestimated. Therefore, the security equipment of the tower crane is indispensable and must be in good condition. The following explanation explains the debugging steps of the tower lifting the lifting height limiter.
1. The lifting height limiter adjustment is carried out under the empty load of the tower crane, and the micro-switch is pressed separately. Verify the sensitivity and reliability of the two gear lifting limit microswitches.

When pressing the micro-switch corresponding to the cam, the power of the fast-rising work block is cut off, and the lifting hook can only rise at a low speed. When pressing the micro-switch corresponding to the cam, the rising power supply is cut off, and the lifting hook can only fall and can not rise.
2. When the hook is raised, the vertical distance from the top to the bottom of the car is 1.3 meters or 1 meter, and the mobilization shaft is 2Z, so that the cam 2T moves to make the micro-switch 2WK instantaneous change and tighten the nut.
3. Raise the lifting hook at a low speed so that the vertical distance from the top to the bottom of the car is 1 meter or 0.7 meters, and the mobilization shaft is 1Z, so that the cam 1T moves to make the microswitch 1WK instantaneous switch, tightening the nut.
4. Multiple blank load verification and correction of the height limit of the two gears.
5. The height limiter should be readjusted when the doubling rate of the hook pulley is changed.

Hoist Trolley Slewing Limit For Tower Crane

Hoist limit switch For Tower Crane

Trolley limit switch For Tower Crane

Slewing limit switch For Tower Crane