Hand-operated gear wheel: characteristics, purpose. Tal chain

The organization of logistical processes is guided by the maximum optimization of resources at performance of each stage. To support high speed operations, special equipment is often used. A special category is represented by devices and units that provide cargo servicing. This includes hand hoist gears, featuring a simple design and a high degree of reliability.

Appointment

Most often, manual hoists, also called hoists, are used in warehousing facilities. The fact is that in the general segment of lifting equipment, this device can be considered as an entry level, and therefore the scope of application is significantly limited. Manually using such a mechanism, it is possible to lift small loads that can be contained in shops, workshops, catering enterprises, etc. Of course, the hand hoist itself is oriented to facilitate the lifting processes, but still its resource has limitations. On the other hand, in facilities where such equipment is used, there are often no conditions for using alternative lifts.

The device and the principle of operation

As part of the basic design is a drum, drive mechanism, as well as transfer system. In this case, a chain hoist device is considered, which involves manual control. As additional equipment, the chain hoist can provide beams or special rails for movement. The need for such infrastructure depends on the needs of a particular facility. If it concerns the maintenance of the production line, then, perhaps, this option will justify itself, but there will hardly be a special need for a point-by-point rearrangement of shipments in goods.

As for bringing the hoists into operation, there are two approaches to the implementation of the executive part. This is a worm and gear system, which are fundamentally different, although both are tame. Worm models are flexible in use, require less effort on the part of the user, but the hand hoist hoist wins due to reliability. And this operational indicator goes directly into safety, which is very important in working with cargo.

Main characteristics

Of course, the main working indicator is the carrying capacity. It determines, with what cargoes it will be possible to work on this unit. The range of permissible loads varies from 250 kg to 10 tons. With a small carrying capacity, the chain hoist can be used in a private economy - for example, in car maintenance. Models working with 10-ton cargo are more often used in production. By the way, the capacity of the lifting capacity directly determines the weight of the hoist itself, which can be from 20 to 150 kg. Therefore, it makes sense to initially assess and the possibility of the ceiling to endure such loads.

The next important indicator is the height at which the mechanism can be located. It varies from 1.5 to 12 m. It is important to pay attention to this parameter if there are serious limitations in the parameters of the room. For example, if it is a garage with a low roof, or, conversely, a workshop with high ceilings. As far as the ceiling is concerned, it is important to take into account that the handheld hoist handheld mobile will require the organization of an appropriate infrastructure. Therefore, it is important to envisage both the possibilities of such a solution in terms of the displacement area and the technical feasibility of installing the corresponding rails. It is necessary to evaluate in advance the power structure of the ceiling, the finishing material and correlate this data with the requirements for the installation of a specific kit.

Varieties

The considered hoist can be classified as a manual gear gear for lifting. But, as already noted, there are mobile models, and hence - and units of stationary type. The first option is preferable, if it is a question of large premises in which the horizontal movement of a material is required. In turn, the handheld hoist stationary is more suitable for small warehouses, shops or garages. This is the best option if you plan to use the mechanism in close conditions. In addition, stationary devices do not require additional work on mounting the chassis on the ceiling.

Manufacturers

Both foreign and domestic companies are engaged in the manufacture of hand hoists. Among foreign brands can be identified Grost, JET and Kraftool. These manufacturers are successfully engaged in the development of warehouse, construction and automotive tools and equipment of high quality. Russian firms "Teuton", "Zubr" and "Caliber" are also not inferior to competitors and offer worthy of the characteristics of solutions. How much does the hand hoist cost? The average price varies from 4 to 9 thousand rubles. The cost of different models differs depending on the carrying capacity, the weight of the hoist itself, the maximum permissible height of the installation and other parameters. Also the cost is affected by additional equipment in the form of a lifting mechanism for winches and beam systems.

Conclusion

Telfer is an example of a compact, easy-to-use and simple mechanism with which you can lift the load. Actually, there are practically no direct alternative options for such a system. Unless it is possible to note other variants of a design execution, but the hand hoist with a chain in its category is the most reliable solution. Such mechanisms are distinguished by their strength, stability of travel, high maintainability and affordable cost. It remains only to determine the optimal characteristics of this assistant. As practice shows, the user wins, who not only relied on the choice of the immediate working qualities of the mechanism, but also took into account the ergonomics of the rigging.