Overhead Shop Crane

1. Product Introduction:

 

Dejun brand single girder overhead shop crane uses the optimized design of main structural parts, the selection of lightweight new materials, and the optimization of structural connection methods effectively.The lightweight measures, reduce the lifting machinery weight, reduce the overall size, reduce the hoisting blind area, expand the scope of use.

 

We offer customized solutions and modify our products to meet specific customer needs. Our team of experienced engineers works closely with clients to understand their requirements, and we provide expert guidance to help them make the right decision.

 

2. Parameters:

 

Lifting Weight(t)	1				2				3				5				10				16				Customized
Span(m)	7.5	10	15	18	8	13	18	27	7.5	12	18	23	8	12	15	18	8	12	15	20	12	19	25	28	Customized
Working Speed (m/min)	Ground 20								Ground 20								Ground20				Ground 20				Customized
Hoisting Height(m) Customized	Customized
Working Class	A4 or Customized
Electric Current	Customized

3. Component:

 

Single girder overhead shop crane with electric wire rope hoist consists of a main beam, two end beams, a cart running mechanism, a wire rope electric hoist, and an electrical control system;

 

In addition to the above configurations, Our overhead shop crane is Fitted with Advanced Safety Features, Including a load limit switch, overloading proposition, and door interlock. Hat The Crane Stops Working Immediaately When it reaches ites load capacity, this preventing academents and damages.

 

4. Applicable Environment:

 

Overhead shop crane is widely used in workshops, factories, warehouses, stockyards, industrial and mining enterprises, iron and steel chemicals, railway transportation, ports and other occasions to lift goods.

 

This type of overhead crane is specially created to cater to a broad range of material-handling needs, and it is widely used in various industries, including construction, manufacturing, and mining.

 

 

 

5. The working principle and height limit function of the skew pull device

As one of the small lifting machinery, the electric hoist is strictly prohibited from being pulled at an angle during use. However, in the actual lifting process of heavy objects, the phenomenon of pulling at an angle due to various objective conditions is still common. Pulling the hoist crookedly can easily cause damage to the electric hoist, which may cause the cable arrangement and wire rope to be scrapped, or the entire electric hoist to be scrapped or cause personal injury, thereby causing certain economic losses and seriously affecting construction production.

 

The anti-skew lifting device uses the steel wire rope to produce a certain deflection angle when the hoist is tilted, so that the limit switch installed on the electric hoist operates, thereby automatically disconnecting the lifting contactor and limiting the lifting.

 

The mechanical part of the electric hoist's tilting device is mainly composed of a rope clamp, two welding components and a limiter. 1 rope card is welded at the lowest point of the arc of the shell opposite to the center point of the balance wheel. Therefore, when designing component 2, its center hole is designed to be circular, thus preventing the deflection angle of the tilting crane in all directions. The same; the travel limit switch contact rod anti-skewing and tilting angle should be adjusted according to the actual working conditions. If the angle needs to be larger, there are three methods: expand the center hole of component 2; adjust the sensitivity of the limit switch Low; Working Principle: First, set the appropriate deflection angle of the wire rope according to the actual work situation. When the angle of the skewed lifting is greater than the set value, the deflection of the wire rope is enough to make the edge of the center hole of component 2 touch the limit contact rod, causing Limit work.

 

The height limit function of the skew pull device is to cause the hook to continue to rise if the flame breaker fails due to malfunction during lifting operations. When the hook is close to the electric hoist, the hook is also close to the stroke limit switch contact rod. If it continues to lift, the contact rod will be deflected or raised, causing ST to disconnect and the hook to stop lifting. rise, thereby functioning as a height limiter.

 

6. Frequently Asked Questions

 

(1) What's your MOQ?

1 Set;

 

(2) How long can we provide design solutions?

Less than 24 hours;

 

(3) What's your warranty period?

12 months from winches accepted;

 

(4) Could your winches drag inclined?

No.

 

7. Solution to electric hoist not working

 

(1) First check whether the power fuse is blown. If one phase is blown, the motor starts with a single phase, the starting torque is zero, and the motor cannot rotate. Sufficient fuses should be replaced.

 

(2) Secondly, the grid voltage is too low, the starting torque is proportional to the square of the voltage, the acceleration torque cannot overcome the load torque, and the operating speed cannot be reached. The grid voltage should be appropriately increased.

 

(3) The stator windings are short-circuited, grounded or open-circuited between phases. When the winding grounding occurs at the lead-out grounding plate, the junction box should be opened for inspection.

 

When the circuit is broken, not only check the motor, but also first check whether the wiring of the control equipment is correct. If the AC contactor contact is poor and the line cannot be connected, use sandpaper to smooth the contact marks on the contactor. Also check the core suction and Check the disconnection status and whether there is any jamming. Replace the contactor if necessary.

 

(4) The load is too large or the transmission machinery is faulty. Generally, it is reasonable for the electric hoist to match the motor power. The lifting weight cannot be overloaded. If the electric hoist cannot rotate, remove the load first. If the motor can start normally, please indicate the reduction box, etc. If the transmission mechanism is faulty, the dragged mechanism should be checked to clear the fault.

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