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Crane brakes, crane brake parts and crane brake system

23 Dec, 2016

Crane brakes0gCHenan Dongqi Machinery Co., Ltd

Crane brakes not only function as a control purpose, but also functions as a safety device. With crane brakes, a crane can speed up or slow down its vertical motion as well as control the rising or lowering goods to stop stably at a required height. Another use of the crane brake is in the crane traveling or luffing mechanism, where it allows the mechanism to stop at a pre-set location.0gCHenan Dongqi Machinery Co., Ltd

Applications of crane brakes

The crane brakes cane be application in various industries, such as, Transformer, storage and logistics, machining, aerospace, nuclear power, waste management, automobile, papermaking, wind power, steel, metallurgy, material handling, nuclear power, and petrochemical industries.0gCHenan Dongqi Machinery Co., Ltd

Dongqi Crane brakes pictures for your reference

  • Crane brakes
  • Crane brakes
  • Crane brakes

FAQ on crane brakes and maintenance

Crane brake is a very important parts of types of cranes for the sake of crane safety, which requests check once every shift. In the following, there are the frequently asked question on crane brake maintenance for your reference.0gCHenan Dongqi Machinery Co., Ltd

1. Braking torque decreases

This is because the crane brake wear, main spring gradually relax or crane brake bracket of each hinge point to causes such as hole or shaft wear is too large, if the crane brake wear to half the thickness of the original belt was replaced.0gCHenan Dongqi Machinery Co., Ltd

The pin shaft wear is more than 5% of the original diameter, ovality to replace more than 1mm, when 5% more than the original aperture, hole wear available reamer reaming, and to make corresponding pin.0gCHenan Dongqi Machinery Co., Ltd

If the hole wear is very big, can be used after reaming jacketed or pastry processing hole to repair again after welding.0gCHenan Dongqi Machinery Co., Ltd

2. Crane brake fails suddenly.

this may be due to crane brake is badly worn or take off, long stroke crane brake core on the bracket or frame, sometimes connection electromagnet and the traction bar connection plate of small shaft slipping out, make a connection plate back down on the frame, sometimes hydraulic push rod pressure on the shell, there is also a spring failure or damage reasons such as Crane brake bracket, the Crane brake can not hold brake wheel and cause, in addition to the replacement and repair the damaged parts, crane brake should be adjusted.0gCHenan Dongqi Machinery Co., Ltd

Wheel crane brake shoe0gCHenan Dongqi Machinery Co., Ltd
Wheel crane brake shoe0gCHenan Dongqi Machinery Co., Ltd

3. Crane brake temperature increases, braking with smoking

This is mainly due to install is not good. Crane brake while open sometimes, but there is a Crane brake band never left Crane brake wheel, friction each other at work, make the temperature of the Crane brake wheel short time up to 300 ~ 400 degree, crane brake with smoking, should timely adjust the crane brake the brake wheel brake surface parallel.0gCHenan Dongqi Machinery Co., Ltd

Sometimes in summer in the high temperature workshop work continuously the lifting mechanism of crane brake wheel, also can appear the high temperature situation, should be timely to cool, the rise of temperature of the crane brake wheel used in crane, generally no higher than the environment temperature of 120 degree, the surface temperature of the winter (below zero 20 degree) -- it is usually below 50 degree, the best cooling method, high temperature crane brake wheel of empty hook hoisting mechanism in running a quadratic limit scope, from 300 to 400 to around 70 (environmental temperature around 20 degree), should be paid attention to in the high temperature when the crane brake tight brake, after cooling may become very loose, need to adjust the crane brake.0gCHenan Dongqi Machinery Co., Ltd

4. Crane brake can't open it

It may due to the hinge point card death cannot turn the main spring force is too large, hydraulic push rod hydraulic solenoid or lack of oil or air in cylinder no is put, coil burned or rectifier component, there is something wrong with the line, the voltage is too low, after find out the reason, should be timely repair. Braking of each hinge point application of thin oil pouring once a week, make its can reduce wear and flexible rotation.0gCHenan Dongqi Machinery Co., Ltd

Crane brake on double girder <a href=/overhead-crane-for-sale.html target=_blank class=infotextkey>overhead crane</a>0gCHenan Dongqi Machinery Co., Ltd

Crane brakes on double girder overhead crane0gCHenan Dongqi Machinery Co., Ltd

5. Maintenance of crane brake

  • Crane brake of the articulated point should according to the lubrication condition on a regular basis, at least once every each week.
  • Working under the environment of high temperature lubrication once every three days. Lubrication can not dip lubricating oil friction to the Crane brake lining or Crane brake wheel surface.
  • Keep clear of in time between the Crane brake lining and Crane brake wheel grime.
  • Hydraulic push rod segment or Crane brake drive the oil change once every six months.
  • If discover oil with mechanical impurities, the device should be opened entirely, wash the parts with gasoline, and then to assemble, sealing ring should be taken before assembly with clean oil infiltration, to ensure the sealing performance after installation. But when cleaning, the coil is not allowed to clean with gasoline.0gCHenan Dongqi Machinery Co., Ltd

More information on crane brakes, overhead crane, gantry crane, jib crane, electric hoist,electric winch and other types of liting equipment or crane parts, please feel feel to contact us.0gCHenan Dongqi Machinery Co., Ltd