A crossed roller bearing is a special type of bearing in which the inner ring is divided and the outer ring rotates. Compared with conventional models, the rigidity of crossed roller bearings is increased by 3 to 4 times. At the same time, since the inner ring or outer ring of the crossed roller bearing is divided into two structures, the bearing clearance can be adjusted, and even if a preload is applied, high-precision rotational motion can be obtained.

In our daily life, the bearing will encounter the problem of abnormal bearing noise after three or two years of normal use. The following are several methods for detecting abnormal noise of bearings summarized by crossed roller bearing manufacturers. Let’s take a look.

Cause of abnormal noise

There are many kinds of abnormal sounds during the operation of crossed roller bearings, the formation mechanism is relatively complex, and the factors are multi-faceted, and various abnormal sounds are often superimposed together, which is difficult to distinguish. The main reasons are as follows:

(1) There are periodic vibration pulses caused by bumps, scratches or serious defects in the inner and outer raceways of the bearing.

(2) Non-periodic vibration pulses caused by defects such as bumps and scratches on the surface of the rolling element.

(3) Periodic or aperiodic vibration pulses caused by the presence of residual magnetically adsorbed iron powder on raceways or rolling elements.

(4) The pulse of aperiodic vibration caused by impurities or dust entering the running area of the bearing raceway.

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For details, please visit:https://www.prsbearings.com/a/news/causes-and-detection-methods-of-abnormal-noise-of-crossed-roller-bearings.html

The clutch is an important part of the tractor. Only by mastering the correct installation skills can the working efficiency of the tractor be improved. At present, small four-wheeled tractors and three-wheeled transport vehicles mostly use double-plate dry friction clutches, which are easy to disassemble but troublesome to install. For this kind of tractor, the tractor clutch manufacturer has summarized some installation skills, let’s learn about it together!

(1) When installing the driven friction plate assembly, the shorter ends of the two driven disc hubs should face each other. If two long hubs or one long hub end is opposite to one short hub end by mistake, the moving plate will be suspended in the middle of the two driven discs, and the torque cannot be transmitted, causing the clutch to slip.

(2) The inner and outer bearings of the clutch (60206 and 602024 bearings respectively) are single five-pointed star concentric ball bearings with an oil-proof cover on one side. When working, the grease in the bearing is thrown into the surface of the friction plate, causing the clutch to slip.

(3) When there is no special tool for assembly, the three small springs can be compressed by 20-22 mm and tied symmetrically with cotton threads, and then the bundled small spring dustproof rings can be placed on the three separate mechanical rods respectively; After the clutch is installed, remove the cotton thread.

(4) When tightening the 6 nuts on the cover of the casing, tighten them diagonally several times. After tightening, the end must not protrude from the side of the V-belt groove to avoid rubbing the belt.

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For details, please visit:https://www.syclutch.com/news/small-tractor-clutch-installation-tips.html

Many people worry that their floor will be damaged when purchasing file racks. When laying, they should lay the floor first or not. If the floor is laid, which way should you choose to lay the track? In fact, this depends on the selected file rack manufacturer. Whether a good file rack manufacturer chooses to tile or slot, it will not affect the floor. In response to these problems, the compact rack manufacturer will give you a detailed explanation of the laying methods of the compact track, and whether the ground will be damaged when laying the track.

Laying method of compact rack

The laying methods of common file rack tracks are basically divided into two types: above-ground rails and underground rails:

1. Ground track

The above-ground track is not only easy to install, but also less destructive to the ground. The operation method is to lay the track directly on the ground and fix it with the ground with bolts.

2. Underground track

The underground track needs to be cut through the ground for re-grooving, or it needs to be pre-embedded. The installation operation is to lay the track of the dense frame below the ground. The laying method needs to be selected according to the specific conditions of the archives.

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For details, please visit:https://www.etegreen.com/blog/the-method-of-laying-the-compact-rack/

The plant grow rack is a high-efficiency agricultural system that realizes the annual continuous production of crops through high-precision environmental control in the facility. In a limited space, scientists use computers to precisely control the temperature, humidity, light, carbon dioxide concentration, nutrient solution and other environmental conditions required for plant growth and development to obtain high-quality, high-yield agricultural products. So what are the advantages of growing racks over traditional farming systems?

Intensive

That is to say, intensive production reflects the overall comprehensive benefits of resources, technology and labor, improves the material output per unit area, and alleviates the contradiction between food supply and demand. The plant growth rack adopts a three-dimensional planting method, compresses the area of ​​the equipment to expand the planting area, and effectively utilizes the indoor space and equipment space through reasonable hole design.

Efficient

That is to fully tap the potential of agricultural and industrial by-products, light, water and other resources, ease the contradiction between man and land, ease the conflict between grain and cash crops, vegetables, fruits, etc. for land, improve the utilization rate of resources, and improve the utilization rate of artificial auxiliary functions. usage efficiency. Take lettuce as an example, it takes about 40 days to mature under natural conditions, but only about 20 days in a plant factory. At the same time, because of multi-layer cultivation, on the same area of ​​land, the output of plant factories can reach dozens or even hundreds of times that of conventional cultivation.

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For details, please visit:https://www.etegreen.com/blog/plant-grow-rack-advantages/

Calcium hydroxide equipment, also known as calcium hydroxide production line, is mainly used for the production of calcium hydroxide. With the increasing application of calcium hydroxide in industrial production, calcium hydroxide equipment has also been upgraded many times. There has been a qualitative change from performance to product. For the production process of calcium hydroxide equipment, everyone is not very clear, so in response to this problem, calcium hydroxide equipment manufacturers give you the following detailed introduction.

THE PRODUCTION PROCESS OF CALCIUM HYDROXIDE EQUIPMENT

1. Pulverized calcium oxide

During production, the raw material calcium oxide (CaO) needs to be added into the silo, and then added to the jaw crusher evenly through the vibrating feeder, and crushed to a particle size of about 40 mm. The dust generated during the crushing process will be introduced into the pulse dust collector outside the workshop through the dust cover of the crusher through the induced draft fan. It is recommended to clean the calcium oxide powder in the dust collector once a week.

2. Digestive reaction

The crushed calcium oxide is lifted to the digester by the bucket elevator for digestion reaction. Calcium oxide needs to enter the first-level digester for preliminary digestion. When the primary digestion is completed, it will enter the second-level digestion or the third-level digester, so that the calcium oxide can be fully digested and decomposed to generate qualified calcium hydroxide primary products. Can reach 98%.

The feed port of the digester is designed with a screw feed propeller to facilitate material transportation. Most of them adopt a double-shaft stirring structure, which has the functions of stirring, crushing agglomeration and self-cleaning. Its unique paddle and stirring formula can make calcium oxide and water fully and evenly mixed together, the reaction is more complete, and it plays a role in the agglomeration generated during the reaction.

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Details can be accessed by clicking here:https://www.ly-gaifeng.com/blog/calcium-hydroxide-equipment-production-process.html