DDD8J Mine explosion-proof monorail crane

Description of DDD8J monorail crane for mining

The DDD8J monorail crane is mainly used for transportation of underground materials and equipment.It is composed of electric hoist, travelling vehicle, track, hanging module, electric control system and electrical limit.Standard configuration track length is 100 meters, each track length is 3 meters.Features :(1) two or three reversible air starters;(2) it can be connected with FYJ(A) and FYF(A) intrinsically safe remote control receiving and transmitting devices to realize underground wireless remote control;(3) JDB electronic comprehensive protector can be used to effectively protect the overload, overcurrent, phase break and leakage of two or three loads respectively.

The DDD8J electric monorail crane is mainly used for the transportation of the roadway and the advanced support section of the lower end of the fully mechanized mining face, which need various hoisting distance in underground coal mine.The track form is rack-type 16 # standard i-steel.

The main features of the DDD8J monorail crane used for mining

1. Compact structure, reasonable layout and low fault rate.

2. Easy to move and push forward with the working face.

3. The control system adopts explosion-proof wireless remote control with high security, which can separate people and goods.

4. Multiple protection is set to ensure the safety of equipment and personnel.

5. Simple operation can greatly reduce the labor intensity of workers.

The main technical parameters of the DDD8J monorail crane used for mining

Parameter name unit parameter value

Traction kN 8

Lifting weight t 5

Standard walking speed m/min 20

Hoisting operation speed m/min 0.8

To adapt to the slope ° 18 or less

Overall dimensions of crane (length x width x height) mm 1860 x 870 x 590

Standard: t 4.722

Through the ability to

Vertical radius m >5.5

Horizontal radius m >3.5

Distance m is less than or equal to 15

Mass of material carried on various ramps

The ramp slope (0 °) - 8 ° 10 12 and 16 18

Tonnage (t) 5 4.3 3.5 3 2.6 2.3

Structural features

The structure of the machine is composed of lifting device, travelling mechanism, track, hanging component, cable towing device and electric control system.Factory machine length of 99 meters, each track length of 3 meters, buckle - connected.The track is composed of i-steel and rack. The walking mechanism is composed of motor, gearbox and other parts. The output walking gear of the gearbox meshes with rack.The lifting device is installed under the walking mechanism.The whole machine is connected with cross beam or anchor by means of hanging components and fixed on the roof of the roadway by anchor or cross beam.

The working principle of

The track is fixed to the roof of the roadway by means of a bolt or cross beam.When the whole machine walks along the track, the lifting device will lift the weight from the ground and start the walking motor. The motor will transfer the power to the reducer box and then transfer to the walking gear after the three-step reduction. The walking gear will mesh with the rack on the track, so as to drive it to walk along the track and achieve the purpose of transporting materials.