Safe operation and maintenance of the jib crane

The boom crane works very lightly. The crane consists of a column, a swivel arm swivel and an electric hoist. The lower end of the column is fixed to the concrete foundation by anchor bolts. The cycloidal pinion reduction device drives the jib rotation. The electric hoist is located on the spiral arm, and the I-beam runs on the left and right lines and lifts the heavy object.gantry crane manufacturers

The swing arm of the crane adopts hollow steel structure, which is light in weight, large in span, large in weight, economical and durable. The built-in jib crane MODE type travel mechanism adopts special engineering plastic roller, rolling bearing, small friction and light walking; the structure size is small, which is especially beneficial to improve the hook stroke.

Safe operation and maintenance of the jib crane

Safe operation of the jib crane:

When operating a jib crane, all national safety technical specifications concerning the use and operation of the crane should be observed. To ensure safety and to avoid damage to the equipment, please observe the following safety practices.

It is not allowed to use a jib crane to transport personnel.

It is not allowed to carry heavy loads above the personnel. Do not lean or drag the load.

Do not overload use.

Avoid lifting the hook and hitting the limit switch during normal operation.

Other important operating tips: The load spreader must be hung on the trolley with a flexible connection. Rigid connections create uncontrollable forces that ultimately lead to fatigue fracture.

When the load is heavy, the flashlight door is not allowed to be pulled. When the arm is manually rotated, the hook can only be pulled, and the flashlight and cable are not allowed to be pulled. The fasteners on the jib crane should be inspected and tightened once for 6 months.

Maintenance of the jib crane:

For safety and high-altitude operations, please specify the maintenance plan of the equipment according to the actual situation, and check it at least every six months or one year according to the following key points.port crane

  1. Bolted joints, bolted joints for anchor bolts, bolted joints with stop end caps. Bolt connection for the arm mounting and bolting for the mounting of the drive.
  2. The tight fit and wear of the pin connection on the hoist and trolley/bearing beam of the matching and wear parts. Slowing and wear of the trolley wheel, roller and cantilever support motion. Usually use lithium or calcium-based grease once after 6 months. Inspection of electrical equipment, including wear of cable slugs, damage to flat cables, etc.
  3. Wear of the stopper.
  4. Inspection and maintenance of electric hoist, inspection and maintenance of electric hoist should be carried out by designated personnel, and electric hoist, chain and travel drive should be inspected according to the corresponding use regulations.
  5. When the inspection finds that the damage exceeds the relevant specified value, the parts should be replaced.


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What kinds of cranes are there

A crane is a machine that hoists heavy objects with hooks or other pick-up devices and performs cyclical operations such as lifting and moving in space. There are many classifications of cranes. The common names of “crane”, “tower crane”, “cable car” and “traveling” refer to one or several types of cranes.bridge crane for sale

What kinds of cranes are there

Some of the working characteristics of lifting equipment are intermittent movements, that is, the corresponding mechanisms for taking, moving, unloading, etc. in one working cycle are alternately working, and the development and use of cranes in the market is more and more extensive. Because there are some accidents that often occur without the hoisting of the legs and heavy lifting, the speed of driving is faster than that of the crawler crane (crawler crane); the operation is stable, the lifting capacity is large, and the walking can be carried out within a certain range, but the road must be flat and solid. The tire pressure meets the requirements and shall not exceed 50 CM from the ground; it is forbidden to carry long distances with load.

What kinds of cranes are there?

The hoisting machinery used in the bridge construction project can be divided into four categories: light and small lifting equipment, bridge type hoisting machinery and boom type cranes, and cable cranes according to their different structures and performances. Light and small lifting equipment such as: jack, pneumatic hoist, electric hoist, balance hoist (also known as balance hoist), winch and so on. Bridge type lifting equipment such as beam cranes. Boom type cranes such as fixed slewing cranes, tower cranes, truck cranes, tire cranes, crawler cranes, etc. Cable cranes such as elevators.

According to the nature of lifting: mobile cranes, tower cranes, mast cranes.

According to the driving method: one type is centralized driving, that is, one motor drives the long drive shaft to drive the active wheels on both sides; the other type is driven separately, that is, the active wheels on both sides are driven by one motor. Medium and small bridge cranes use the “three-in-one” drive method in which the brakes, reducer and electric motor are combined. The common bridge crane with large lifting weight is easy to install and adjust, and the drive unit often adopts universal joint. .light crane

According to the structure, the crane is mainly divided into light and small lifting equipment, bridge type (bridge type, gantry crane), boom type (self-propelled, tower type, door seat type, railway type, floating type, mast type crane). Cable type.

How to ride electric motorcycles safer

Electric motorcycles have become an indispensable means of transportation for many people. Because they are more practical and energy-saving, they can get off work without squeezing buses and squeezing subways. However, remember to pay attention to some precautions when riding an electric car. These are not to be ignored. This article combines some of the experiences he has seen or heard to share with everyone.

How to ride electric motorcycles safer?

How to ride electric motorcycles safer

Don’t make insurance for a hundred dollars, you must have a license plate. Some young boys, in order to experience the speed of the wind, riding on an electric motorcycle, running loud, and losing their safety. It also threatens the safety of people.6 inch mini electric scooter portable foldable for adult

Just ride an electric motorcycle and don’t carry a child. Just riding an electric car on the road, when you encounter a lot of vehicles, you may panic, suddenly it is easy to fall when you are suddenly braking, and do not wear high-heeled shoes or slippers, Xiaobian has seen the person wearing a slipper.

When riding an electric car or a motorcycle, don’t get too close to the bus or other car. Some people ride electric cars in order to catch up with speed, and they are very close to other cars, regardless of their own safety. This is very dangerous. Also, be sure to wear a safety helmet when riding a bicycle.

When riding an electric car or a motorcycle, don’t stop on the road to pick up the phone or read the information. Remember to sit in the car and see a woman riding the bike suddenly stop. This makes the driver suddenly brake. It’s very unsafe to stop.

Do not ride an electric car or a motorcycle too fast, or like to shuttle in the vehicles on the road, sometimes in order to grab the road ahead of time to ignore the safety, especially in small cities, many of these situations appear, and even red light, This is too

Pregnant women don’t want to ride electric cars, especially in the early stages of pregnancy, riding a motorcycle can be very dangerous. Don’t be tempted to ride a motorcycle or take an electric motorcycle, especially if the road is bumpy.