The Biggest Overhead Crane

The Biggest Overhead Crane

 

Product Description

 

1. The biggest grab overhead crane is widely used in power plants, freight yards, workshops, docks, etc. for loading and unloading of bulk materials.

 

2. The crane is a heavy-duty work system, and the work level is A6.

 

3. The way to enter the driver's cab is as follows: side entry, side entry, and top entry.

 

4. The rated lifting capacity includes the dead weight of the grab bucket.

 

5. There are two types of grab opening directions: parallel and vertical to the main beam.

 

6. The pick-up device is a four-rope grab bucket with two drums, which is simple in structure and reliable in operation. The grab can be opened and closed at any height.

 

7. The grab bucket is only suitable for bulk materials in the natural accumulation state. When grabbing underwater materials or special materials, it must be specially mentioned when ordering.

 

8. The crane can be used indoors or outdoors, and a rain cover device is added for outdoor use.

 

 

Lifting Weight(t)		5/5			10/10		16/16
Span(m) Customized		10.5 13.5 16.5 19.5 22.5 25.5 28.5 31.5
Max. Lifting Height(m)		20/22			22		22
Hoisting Speed(m/min)		40.1/15.6			40/10.4		41.8/13
Travelling Speed of Crab(m/min)		44.6			45.6		43.2
Travelling Speed of Trolley(m/min)		93.7		86.4	76	89	75.3
Grab (Customized)	Model	113	109	110	105	106	101	102
	Type	Light	Medium		Heavy		Super Heavy
	Volume(m3)	2.5	1.5		1		0.75
	Density(t/m3)	≤1	＞1-1.7		＞1.7-2.5		＞2.5-3.3
	Dead Weight(kg)	2633	2549	2615	2506	2568	2479	2546
	Main Size(mm) Ba	1634	1444		1238		1160
	Main Size(mm) Bb	2425	2175		2025		1875
	Main Size(mm) Bc	3120	2740	2900	2530	2690	2340	2500
	Main Size(mm) Hp	3315	2935	3015	2835	2915	2735	2815
	Main Size(mm) Hb	-3615	-3385	-3605	-3255	-3475	-3125	-3345
Working Class		A5-A8
Electric Current		Three-phase AC 380V 50Hz

 

Product Composition

 

The traveling mechanism of the cart is the driving device for the whole bridge grab machine to travel longitudinally along the track on the ground. It is installed on the outrigger of the bridge frame, and is connected with the high-speed shaft of the reducer through two electric motors of the same specification by means of a gear coupling, and the low-speed shaft of the reducer is connected with the wheels of the cart. The brake is used to make the bridge grab machine stop at the required position accurately and reliably. The brakes usually hold the wheels tightly and are only released when walking.

 

The trolley and its traveling mechanism are devices that enable the trolley to travel laterally along the trolley track on the main girder of the bridge frame. The lifting and closing mechanism of the grab is the main working mechanism of the bridge grab machine, and it is a device used to grab and unload materials. The whole machine is installed on the trolley frame.
 

It is composed of motor, coupling, brake, reducer and rope drum. The grab bucket is composed of two palate plates, two support rods and a beam. The operation of the grab bucket can be divided into four processes: lowering bucket, closing bucket, lifting bucket and opening bucket. The drop bucket refers to the opening of the grab bucket to drop onto the material pile. Closed bucket means that the grab bucket is inserted into the material pile, forcing the palate to close and grab the material. The lifting bucket means that the grab bucket rises and moves to the sky above the unloading site. Opening the bucket refers to unloading the material, and then proceeding to the next cycle process.

 

The coal hopper is installed on the outside of the rigid leg, and the coal feeder is installed at the coal outlet at the bottom of the coal hopper. The upper opening of the coal hopper is equipped with a grate, which can prevent large lumps of coal and other foreign matter from falling into the coal feeding system. The biggest grab overhead crane can transfer coal to the entire coal yard. It has a large transportation volume and can pile coal very high, which can reduce the area of the coal yard. But it has high investment cost and large metal consumption, so it is suitable for large and medium-sized power plants.

 

 

Grab specifications and model parameters

 

When purchasing a grab bucket, its specification and model parameters should be considered to ensure that it meets the requirements. The following are common grab specifications and model parameters:

 

1. Self-weight: The weight of the grab itself is generally between 10-50 tons.

 

2. Working capacity: the maximum weight of the material that the grab can carry when it is working.

 

3. Opening and closing distance: refers to the distance when the grab is opened and closed.

 

4. Gripping mouth width: refers to the maximum width of the grab bucket to pick up the material.

 

5. Adaptable tonnage: the tonnage range of the main engine applicable to the grab.

 

6. Oil cylinder volume: refers to the number of oil cylinders required to start the grab.

 

 

Security measures:
 

The biggest overhead crane is a powerful mechanical device that needs to be used with great care and necessary safety measures to protect the safety of the workers and the equipment itself. The following are some safety measures required when using a grab crane:

 

Operators must receive professional training and certification to understand crane safety operating procedures and standards.

 

Before use, a comprehensive inspection must be carried out on the biggest overhead crane, including lifting mechanism, slewing mechanism, traveling mechanism, grab bucket, electrical system, etc.

 

When operating a grab crane, the rated load of the crane must be strictly observed, and overloading is not allowed.

 

When working with grab cranes, it is necessary to maintain a good view, avoid blocking materials and obstacles, and ensure safe operation.

 

When working on the biggest bridge crane, it is necessary to ensure that the grab is firmly connected to the crane to avoid falling off the grab and spilling materials.

 

When operating a grab crane, it is necessary to maintain the stability of the machine and avoid tilting or unbalance of the machine.

 

During the operation, you must pay attention to the surrounding environment to avoid collisions between the grab bucket and other objects or people.

 

During the operation of the grab crane, it must be kept clean and hygienic to avoid damage to the machine and interference with the operation by debris and garbage around the crane.

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