Fittings and Parts of Crushing Machines
There are several fittings and parts
commonly found in crushing machines, including:
1. Jaw Plates: These are the main
wear-resistant parts of the crushing machine. They are fixed on the jaw body
and provide the crushing surface for the material.
2. Toggle Plates: These plates are
connected to the toggle beam and help in adjusting the opening of the crusher.
They also protect the machine from overloading.
3. Eccentric Shaft: This is a critical
component that provides the rotational motion to the jaw crusher. It is usually
made of high-grade forged steel and is responsible for transmitting the
crushing force to the material.
4. Flywheel: The flywheel is a heavy metal
wheel attached to the eccentric shaft. It helps in maintaining the momentum of
the crushing machine and reduces the load fluctuations during the crushing
process.
5. Bearings: Bearings are used to support
the rotating components of the crushing machine, such as the eccentric shaft
and the flywheel. They ensure smooth operation and reduce friction.
6. Crushing Chamber: The crushing chamber
is the space between the fixed jaw plate and the movable jaw plate. It is where
the actual crushing of the material takes place.
7. Wedges: Wedges are used to adjust the
gap between the fixed and movable jaw plates. They help in controlling the size
of the crushed material.
8. Springs: Springs are used to provide the
necessary force for the jaw plates to return to their original position after
crushing the material.
9. Belt and Pulley System: This system is
used to transmit power from the motor to the crushing machine. It consists of a
belt connected to the motor and pulleys attached to the flywheel and eccentric
shaft.
10. Guard Plates: Guard plates are used to
protect the crushing machine from damage caused by foreign objects or excessive
wear.
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Trend 2 from the open cultivation to the protection of the cultivation and development: the protection of the cultivation of greenhouses, greenhouses, multi-layer coverage, net sheds, shade and so on. The cultivation of open field is affected by the early spring climate, and the output is not stable. Although the investment is small, easy to plant, well managed, the cultivation area is large, and the listing is concentrated, the issue of seasonal surplus is prominent.
The trend of three from the single-season cultivation to the annual cultivation and development: In the past to solve the early spring or late autumn vegetable market off-season, often use some early or very early varieties, in the short-term produce off-season vegetables, and in the short-term market. These varieties are often resistant, poor quality, low yield, short growth period. With the improvement of productivity, how to extend the production season, or to carry out annual production, the product has a long time to market, good quality and high output, and has become a market trend.
Trend 4 grows from single planting to multi-level cultivation: In order to make full use of the existing cultivated land and the space within the protected area, intercropping, interplanting, multiple cropping, multi-cultivation and multi-layer cultivation are often conducted according to the vegetable production situation. Such as tomato intercropping watermelon, intercropping leaf vegetables, mushrooms, pepper interplanting leeks, leeks or melon, melons and vegetables interplanting ginger, etc., in order to obtain a stable high yield.
Trend 5: From the group benefit to the pursuit of three-dimensional cultivation and development: With the development of science and technology, the high yield of single plant of vegetables has been improved, and higher yields and benefits can also be obtained through thin planting and three-dimensional cultivation.
Trend 6: From decentralized production to intensive production: From decentralized small-scale farming operations to centralized and contiguous planting, it is conducive to the popularization and application of new technologies and the mass processing, storage, transportation and sales of products.
Trend 7 shifts from labor-intensive to technology-intensive production: microcomputer control technology, drip irrigation, micro-irrigation technology, automatic roll-up blinds, automatic temperature control and light control, insect pollination, insecticidal lamp pest control, and pest control network pest control technologies. Reduce labor intensity and increase production efficiency.
Seven trends in vegetable cultivation
Trend 1 is developed from extensive cultivation to fine farming: Vegetables are a labor-intensive, high-yielding, and economic-efficient crop. In view of the fact that vegetable production is a major business for increasing income, only intensive cultivation can bring considerable benefits to producers. .