Winch Snatch Block winding principle

For the single winding non rotating Winch Snatch Block  wire rope, must strictly abide by the principles above, otherwise easily lead to permanent deformation of wire rope; for multi-layer winding, rope rotation direction is decided by the drum rope groove direction, chain hoist 1 ton so as to lay the foundation for the next layer.
Steel wire rope winding drum mutual friction and the extrusion pressure is big, easy to produce the phenomenon of chaos rope, so we should select the wire rope diameter slightly smaller than the rope groove pitch and groove diameter, lashing cargo so as to increase the contact area between the wire rope and drum, reducing the friction force between the adjacent wire rope, so as to improve the steel wire rope life. Practice has proved, wire rope electric hoist wire rope diameter than the rope groove pitch  1%, contribute to the rope tightly, effectively eliminate the climbing rope, rope disorder phenomenon.
In the same diameter, number of wire rope strand diameter smaller, single wire becomes smaller, the flexible of the steel wire rope is good, can reverse bending force to overcome the wire rope good out of drum is also easy, wearing rope. While the coarser outer strand, Wire rope winchthe steel wire is thicker, can better abrasion resistance, mechanical damage, corrosion and extrusion pressure. Therefore, only when the two advantages combine well, is the quality of wire rope is really high performance.

Let the rope does not become the vulnerable parts of Manual Block

Steel wire in Manual Block  is wearing parts, if in the process of using improper use or maintenance is not in place,motorized chain hoist very willing premature can cause rope scrap, so what can delay or maintain the normal use of the steel wire rope? Eagle electric hoist manufacturers to disclose to you.
Firstly, the mechanism of wire rope bending fatigue, then analysis of spiral multi-layer winding drum so that the wire rope is how rolling and wear, illustrates the influence of wire rope diameter tolerance, put forward to the improvement, wire rope hoist suppliers finally to find the solution from the rope itself. Between the steel wire rope in winding rope mutual grinding produced Nick, lead to premature failure of wire rope. Strand wire rope outside more closely, mutual notch less. So we must put the wire rope has 6 edges or 8 edges cross section made of circular cross section in order to solve the problem. The forged display lifting equipments rope round section in bending machine and a multilayer test, the service life can be 2 times.

Chain Block lifting mechanism

We often say that the Chain Block lifting height differ in the lifting mechanism, the lifting mechanism of what is, what the specific differences,
Wire rope electric hoist lifting mechanism comprises a lift hoist motor through the shaft coupling through the reducer hollow axle driving drum rotation, so that the wire rope around the drum driven by a rising or falling hook device.
Lifting height H=6m, with a jaw coupling is connected to the motor shaft and reducer input shaft. H ≥ 9m is added in the intermediate shaft and the rigid coupling. H ≥ 18m, with support to strengthen the intermediate shaft rigidity, guarantee the smooth rotation.
electric hoist with trolley structure: motor, gear box, drum, steel wire rope, hook
Motor drive gearbox the drum is rotated winding wire rope, hook up and down

What is hand gourd?

Hand wire rope hoist suppliers  is a kind of easy to use, easy to carry the manual lifting machinery, suitable for factories, mines, construction sites, agricultural production and the dock, dock, warehouse, used for installing machinery, motorized chain hoist

‍ goods and the loading and unloading of vehicles, especially for open and no power work more show its important function. With each hand monorail car supporting the use of hand chain hoist, of the hand lifting transportation vehicles, for overhead monorail transportation or cantilever crane.

Five major characteristics of the hand chain hoist:

1 the use of safety, maintenance is simple; the worker work in a safe environment.

2 high mechanical efficiency, hand pull small; improve the efficiency of worker.

3 light weight, easy to carry; make workers more comfortable work.

4 beautiful appearance, small size; the limit of field problems.

5 durable.‍

The structure and principle of manual hoist

Manual lashing cargo with a chain wheel, hand zipper, transmission machinery, hoisting chain and the upper and lower hook and other parts. The mechanical transmission part can be divided into the worm and gear transmission two. Due to the mechanical efficiency of worm gear type transmission is low, parts easy to wear, so rarely used now. single girder gear transmission has several models, in which HS is a manual chain block popular; type WA is improved on the basis of type HS; SBL is the use of new structure of transmission, high mechanical efficiency of it, but the weight ratio of HS type heavy some.

manual chain block structure principle of the heavy device: the one with the reverse check braking deceleration combiner and chain pulley.

Hand chain hoist

Hand chain hoist 1 ton can be used safety device, equipped with function of preventing overload protection, hoisting increase is too large can not only smooth action in order to ensure the safe use, but also can prevent the theme of damage.

Hand chain hoist assembly simple, precise machine and minimum generation hook spacing design makes this series products even in narrow working environment. Easy to install, without any adjustment.

chain hoist 2 ton high strength, high strength 100 level lifting chain machine of high tensile strength, flexible and durable.

Low repair rate, built-in galvanized chain cover so that the product can be used outdoors, crane and crane brake without any lubricant.

The electrical chain hoist maintenance and repair should be more familiar with the hoist mechanism, cleaning with kerosene hoist parts, gears and bearings in part, add butter lubrication, prevent don't understand the machine performance principle of optional disassembly.‍

Wire rope electric hoist before using the debug and test:

1, a new installation or dismantling of the electric hoist, to test the wire rope electric hoist is normal, should first be empty test run several times. Not installed before the end, no electricity.

2, installation and debugging, must strictly limit device is flexible and reliable, when rising hook upper limit position, the hook shell to the drum shell distance must be greater than 50mm. When the hook to the lower limit position, should guarantee the safety of steel electric chain hoist with trolley on the drum circle, effective security ring must be two laps more than.

3, check before use wire rope is normal, such as bending, deformation, corrosion or wear, fracture degree more than the prescribed requirements, it is strictly prohibited to operation.

4, before using, check whether installation is firm, reliable wedge.

5, the use of confirmation before the brake is reliable; adjust the lower limit stop module.

6, before the use should be carried out in 125% of the rated load, lift from the ground about 100mm, 10 minutes of static load test, and check whether steel lifting clamps is normal.‍

Wire rope electric hoist reasons of gear wear

Wire rope electric hoist after using a period of time, the gears will wear.

Transmission gear for electric wire rope hoist on another failure form is abrasion,tooth wear after thinning. If the lubrication wear caused by impurities, commonly known as the abrasive wear. This wear often appear in the addendum and dedendumscraping together the very deep, scraping the road perpendicular to the pitch line and parallel to each other. After scraping the oil temperature crane series

‍rise, reducer, geartransmission shrill noise, then must replace the lubricating oil.lift hoist

The tooth form deviation, deviation installation center distance is too large, can cause the top edge and the root part of the transition curve excessive squeeze gears, thetooth fillet part produces severe wear. Due to overload, often make tooth driving wheel or gear tooth top (and sometimes along the whole tooth surface) is worn verythin layer.

electric chain hoist and trolley mechanism speed reducer gear wear, tooth thickness should not be less than the original tooth thickness of 60%, for running gear wear tooth thickness should not be less than the original tooth thickness of 80%, more than the standard should be replaced with new gear. Thickness of tooth wear can be used to measure toothcaliper measurement of tooth thickness test. The measurement method is shown in figure. Gear measuring caliper is comprehensive caliper vernier caliper and a depth gauge, used to measure thickness of tooth. When measuring, first from the drawingsfound tooth height (i.e. from the pitch circle and addendum height), the tooth thickness caliper vertical scale to this height. Then, the card foot got stuck teeth, with horizontal scale measurement of tooth thickness. The measurement precision can reach 0.02mm.

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Wire rope electric hoist before using the debug and test

Wire rope electric hoist before using the debug and test

1, a new installation or dismantling of the electric hoist, to test the three phase electric hoist is normal, should first be empty test run several times. Not installed before the end, no electricity.

2, installation and debugging, must strictly limit device is flexible and reliable, when rising hook upper limit position, the hook shell to the drum shell distance must be greater than 50mm. When the hook to the lower limit position, should guarantee the safety of steel wire rope on the drum circle, effective security ring must be two laps more than.

3, check before use wire rope is normal, such as bending, deformation, corrosion or wear, fracture degree more than the prescribed requirements, it is strictly prohibited to operation.wind tubine hoist

4, before using, check whether installation is firm, reliable wedge.3, check before use wire rope is normal, such as bending, deformation, corrosion or wear, fracture degree more than the prescribed requirements, it is strictly prohibited to operation.

5, the use of confirmation before the brake is reliable; adjust the lower limit stop module.

6, before the use should be carried out in 125% of the rated load, lift from the ground about 100mm, 10 minutes of static load test, and check whether it is normal.

Wire rope lift hoists used before the examination is very important, if the check is not in place would be considerable damage to the machinery, suggested that the majority of customers to pay attention to.‍

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