Advantages of corn grain mill

     When the motor of the corn cereal mill starts, the connecting shaft and the grinding disc sleeved on the connecting shaft run together. The material to be ground enters the milling sleeve from the hopper, the relative operation between the auger of the milling disc and the milling sleeve, the crushing force causes the material to be crushed into small particles, and the small particles after the crushing are crushed under the spiral motion of the milling screw Bring it in between two grinding discs.

The relative operation of the grinding disc teeth makes the material crushed into fine powder particles in a short time. The powder flows out from the tooth groove of the grinding disc and is thrown to the surroundings. At the same time, it is brought under the scraper belt installed on the disc. The powder outlet flows out.

　　The advantages of corn coarse grain mill:

　　 1. No longer uses low-power motors for corn grain mills, 220V has two powers of 2.2 and 3KW, and 380V has only one power of 2.4KW. The motor shaft of the new mill is longer, unlike the old model, which uses another shaft sleeve on the motor shaft, which further ensures concentricity, the machine runs more smoothly, the vibration is smaller, and the noise is smaller.

　　 2. A silicone pad is added between the static grinding disc and the machine wall, which has the effect of shock absorption and fine-tuning of the grinding disc, so that the two grinding discs match better, the grinding powder is finer, and the noise is reduced.

　　 3. Corn grinder mill, between the motor and the motor fixing plate, under the motor fixing plate, rubber pads are added to further enhance the shock absorption and noise reduction effect.

4. Between the door cover and the cavity of the corn multi-grain milling machine, a close processing method is adopted, and the stepped matching method is used to ensure that no powder is leaked, and the concentricity of the top pad of the regulator and the hexagonal sleeve of the grinding disc is reduced to reduce wear, reduce vibration and noise.

　　 5. The slope of the crushing cavity of corn grinder mill (that is, the installation position of the static grinding disc) is scientifically designed to further ensure the fineness of the milling powder and achieve the effect of imported instant taste.

　　 6. The regulator groove of the corn multi-grain milling machine adopts a *machining machining center to ensure the precision of the processing and achieves the effects of convenient adjustment, close coordination and low noise.

　　 7. After the grinding disc and scraper are installed on the grinding disc of the corn multi-grain grinder, after computer dynamic balance test, the balance of concentricity and center of gravity is further ensured to reduce vibration and noise.

　　 8. There is no bearing between the base of the corn grain mill and the motor, which is convenient for customers to disassemble and install, and reduces the occurrence of failures and improves the quality of the machine.

　　 9. Corn grain milling machine achieves the effects of smooth discharging, very fine milling, and much lower noise and vibration than the old model.

9FQ Series Corn Crusher

9FQ series corn crusher structure and working principle

The pulverizer is composed of a pulverizing machine, a cyclone separator, a dust box and an induced draft fan. The machine adopts a movable tooth disc and a fixed ring gear screen ring material. The width of the surface is subjected to impact shear and friction. At the same time, when the movable gear rotates at a high speed, a strong air flow is generated, and the heat of the crushing chamber and the material are quickly discharged from the screen. The control particle size can be determined by replacing the screen, and the materials can be recovered by one or two levels without dust, the machine is designed according to GMP standards. The whole machine is made of stainless steel. The host uses water cooling. No dust flying in the production process. The turbo crusher has the advantages of small size, low energy consumption, stable transmission, low noise, high sealing degree, good self-cooling function, convenient disassembly, maintenance and replacement parts. It is easy to maintain and exchange parts.

The main purpose of 9FQ series corn grinder

This series of crushers are suitable for pharmaceutical, chemical, food (white sugar, granulated sugar, salt, rice, corn, starch, oats, flour, soybeans, peas, lentils, mung beans, spices, flavors, sweeteners, dried fruits, nuts, potatoes Slices, chopped bread, cocoa powder, potato powder, coffee, milk powder, onions, dehydrated vegetables, lotus seeds, glucose, oat hulls, husks, ginger, pepper, pepper, pepper, oil wheat, soybeans, star anise, cinnamon, etc. powder The industry is a crushing device that integrates crushing and vacuuming and continuous discharge.

Main performance characteristics of 9FQ series corn grinder

1. It can be used as a multi-function crusher. The equipment has a dust suction device without dust pollution. It has the advantages of low noise and high efficiency.

2. The machine has the advantages of advanced design, reasonable structure, reliable performance, convenient use and maintenance, low power consumption, small space occupation and high production efficiency.

3. The small gear mill has the advantages of small volume, high efficiency, convenient operation and maintenance, simple process configuration, low power consumption, built-in rotor, no dead angle for crushing, and more uniform particle size of the finished product.

4. The body is embedded with a seal to completely prevent dust from overflowing and the working environment is clean.

5. Common crushing, fine powder and fine crushing

Correct purchase of new corn thresher

Long-term use of mechanical equipment requires maintenance, and the new corn thresher is no exception. The new corn thresher is mainly used for its high performance. Therefore, the maintenance of agricultural machinery directly affects the service life and performance of agricultural machinery. Let me introduce how to prevent the new corn thresher from rusting?

       First of all, most parts of agricultural machinery are made of iron. Such iron parts should be cleaned when not in use, coated with anti-rust paint, and stored in a ventilated and dry place.

       Secondly, the new corn thresher is placed in a dry and ventilated place. When the wheel harvester and tractor are put into storage, the wooden piers should be used to jack up the front and rear axles of the locomotive, so that the tires will be lifted off the ground and will not bear the load, but must maintain appropriate air pressure.

        Third, if the new corn thresher is not in a free position when it is parked, the spring will lose its elasticity, causing plastic deformation and scrapping it in advance. For example, the intake and exhaust valves of the engine should be closed to prevent the spring from being compressed and prevent dust from entering the cylinder.

       We found that some robots never check or maintain certain parts. They always think that they will have no problems. As long as the parts are not damaged, they will continue to be used, and even there will be a dead-end for the maintenance and repair of agricultural machinery. Agricultural machinery is often prone to failure at critical times. For example, agricultural tools such as corn threshers have maintenance dead spots. Why does this happen? There are three main reasons.

       One is that some parts are in a state of hidden damage that is difficult to detect with the naked eye. This is the case for peeling rubber tubes. An agricultural vehicle emits black smoke and is unable to work. The inspection is caused by peeling of the inner layer of the intake pipe; and a wheeled tractor engine has too high water temperature and reduced power. The result proves that the inner wall of the radiator hose has fallen off and blocked the circulating water channel. . The cloth hose is stronger than the pure hose, because it is wound with multiple layers of cord in the hose. In the working process, due to the long-term bearing of circulating hot water or air flow, the thin rubber layer on the inner wall of the hose is easy to fall off, just like a movable valve, which makes the cross section of the pipe smaller and hinders the flow of circulating water or air. The above fault.

        Second, some failures of the automatic corn thresher are caused by the gradual failure of some parts over time. This is the case for the softening of the spring and the formation of scale in the cooling system. The softening of the springs, such as valve springs, governor springs, outlet valve springs, and clutch springs, will have a serious impact on the normal operation of the locomotive. Many operators believe that the cooling system scale has little effect on the engine's work, and the cleaning and maintenance work is more troublesome, so they don't care about it. However, after scale is generated in the cooling system, due to poor thermal conductivity, it is easy to cause overheating of the engine, resulting in a decline in power and economy.

       The third is to over-reliance on the manufacturing accuracy of the accessories, and therefore ignore the inspection before installation. Such as the side gap and back gap of the piston ring, if these gaps are too small, it is easy to cause the piston ring to jam or break....

Main factors affecting the normal operation of the stone removal machine

     When the rice stone-removing machine is working normally, the rising air velocity required to penetrate the bed is equivalent to the suspension velocity of wheat. If the air flow speed is too large, the materials on the trend screen surface are easily blown through, the air flow is unevenly distributed, which destroys the automatic classification of the materials and reduces the separation efficiency. If the air velocity is too small, the wheat is unable to levitate, and it is easy to climb up with the stone, causing the stone to contain wheat. At the same time, the materials are automatically graded poorly, and the wheat species also easily contain stones, which also reduces the separation efficiency.

      1. Inclination angle: the angle between the stone-removing screen surface and the horizontal plane becomes the inclination angle. The size of the inclination has an impact on the output of the rice stone removal machine and the efficiency of stone removal, and the effects on the two are contradictory. When the inclination angle is large, it is powerful to the decline of wheat flow. However, the trend efficiency will be reduced. When the inclination angle is small, the wheat flow rate is low and the yield is small. At the same time, it is easy to carry wheat in the stone, which increases the grain content of the feet. The inclination of the rice stone removal machine is generally 5-9.

      2. Throwing angle: The throwing angle refers to the angle between the vibration direction of the sieve body and the screen surface. The form of the vibration of the sieve body of the rice stone removing machine is a reciprocating linear vibration. The vibration direction is different from the vibrating screen and cannot be changed at will. This is the basic condition for the side-by-side stones close to the screen surface to travel along the screen surface. Therefore, choosing an appropriate throwing angle is conducive to automatic grading of materials and upward movement of side-by-side stones. However, when the throwing angle is too large, the material tends to jump away from the screen surface, but it is not conducive to the upward movement of side by side stones. The throwing angle of the rice stone removal machine is generally 30-35.

      3. Amplitude and vibration frequency: Amplitude refers to the amplitude of the sieve body vibration, and the vibration frequency makes it a working parameter that indicates the speed of the sieve body vibration. When the amplitude is large and the frequency is high, the material moves faster on the screen surface, and the automatic classification function is stronger. Conducive to the improvement of separation efficiency and equipment output. However, the amplitude is too large, the frequency is too high, the working surface vibrates violently, the material is prone to jump, and the automatic classification of the material is destroyed. Therefore, the separation efficiency is reduced. On the contrary, the slow movement of the material on the screen surface and the thickening of the material layer are also not conducive to the automatic classification of the material. Not only affects the separation efficiency, but also affects the output of rice stone removal machine. The amplitude of the rice stone removal machine is generally about 3.5-5mm. The frequency of the rice stone removal machine driven by the vibration motor is generally not adjusted, and the frequency of the eccentric rotation of the rice stone removal machine is positively related to its speed.

Calculation and Research on Critical Speed ​​of Spindle System of Rice Mill

  Rice is a basic food crop, and its production and processing have always been valued by our country. The rice mill, as a processing equipment for rice, plays an important role in improving the utilization rate of grain. In the main shaft system of the rice mill, there are many asymmetric parts in the structure of the shaft, and there are many curved grooves on the roller, which leads to the existence of eccentric mass, which will cause severe vibration when the speed increases, making the rate of rice broken Increased, bearing life reduced.

      In order to solve the problem of broken rice rate, the finite element method was used for static analysis and modal analysis of the vertical rice mill. The researchers obtained some enlightening conclusions. However, in the modal analysis, this article only considers a single spindle, and does not take into account the components on the spindle at the same time. In fact, when the roller, pulley and pick roller are installed on the main shaft, the frequency has changed.

      The above problems belong to the field of rotor dynamics in mechanics. But in rotor dynamics, in order to solve this kind of problem, the structure is often simplified, and then the corresponding formula is derived. These formulas have a directional effect, but for a complex rotor system such as a rice mill, its theory is difficult to use. At this time, the use of numerical calculation methods, such as the finite element method for rotor system dynamic analysis has become an effective way. According to the rotor dynamics theory, when the working speed of the rotor system changes, its critical speed will also change accordingly. Due to the complicated structure of the main shaft system, the finite element method was used to analyze it, and the critical speed of the main shaft of the rice mill under different speeds was investigated, so as to provide a method for its calculation, so as to provide a reference for the calculation of the critical speed of similar rotor systems.

The advantages and disadvantages of the horizontal rice mill

Advantages of horizontal rice mill

1. Smooth operation. The bearing only bears radial force, and the bearing stress and torque of the whole machine produced by the unbalanced force are small. The horizontally installed white rollers do not have high requirements for manufacturing and assembly; the technical requirements of the corresponding structural parts are general;

2. The volume and machine weight per unit output are small. Due to the large axial driving force and the high flow rate of rice grains, under the same material flow rate as the vertical rice mill, the diameter of the white roller and the annular area of ​​the white room are both small, and the volume and weight of the whole machine are small. Lighter, lower manufacturing technology requirements, and lower cost;

3. It is convenient to disassemble and assemble the sand roller in the horizontal direction of the rice mill, saving time and effort;

4. The rate of rice production is high, and the spiral groove makes the density of the rice grain fluid uniform over the entire length of the whitening room, and the tumbling movement is good, and the parts of the rice grain are evenly milled;

5. The two white-rolling rollers are very convenient and reasonable to be combined coaxially or off-axis in one rice mill.

Disadvantages of horizontal rice mills

1. Gravity affects the centrifugal acceleration of rice grains, and makes a difference between the upper and lower parts of the whitening room, which affects the uniformity of the whitening degree;

2. The number of rice knives is small, the material is hard, and some are not easy to adjust. For example, the fixed rice knives in the middle and lower parts need to be stopped and adjusted. Although the steel rice knives are wear-resistant, they are easy to damage the rice grains and increase the rate of broken rice;

3. Bran is easy to accumulate in the upper part of the whitening room;

4. After the spiral groove is worn, manual chiseling is required, and the quality after repair is different from person to person; the sand roller is $ 35 knots. After wear, it cannot be adjusted or partially replaced, and the maintenance cost is high.

Working principle of corn thresher

The corn thresher is mainly composed of a screen cover (ie, drum), a rotor, a feeding device, a frame, and other 5 parts. During work, corn is fed from the feed port, the seeds are separated by the screen hole, and the corn cob is The tail of the machine is discharged, and the corn silk and the skin are discharged from the tuyere. The use of corn thresher must be prepared in advance to avoid accidents.

Working principle of corn thresher

1. Components

The corn thresher is mainly composed of a screen cover (ie, drum), a rotor, a feeding device, a frame, and other 5 parts. The screen and the upper cover rotor form a threshing chamber. The rotor is the main working component. The threshing is done in the threshing room.

2. Working principle

The corn is fed from the feed inlet, the corn is impacted in the rotor and drum rotating at high speed, the grains are separated by the screen hole, the corn cob is discharged from the tail of the machine, and the corn silk and the skin are discharged from the tuyere. The feed inlet is located at the upper part of the upper cover of the machine. The corn cob enters the threshing chamber through the feed inlet. In the threshing chamber, the corn kernels fall off due to the impact of the rotor rotating at high speed, and are separated through the screen holes.

3. Matters needing attention

Before working on the thresher, it is necessary to educate the participants on the safe operation, carefully check whether the rotating parts are flexible, and whether the adjustment mechanism is normal. The gearing ratio is required to avoid excessive thresher speed and severe vibration, which may cause personal injury.

4. Maintenance instructions

After using the thresher, remove the dust and other debris attached to the machine in time, remove the loose screws, transmission belts, conveyor belts and chain belts. The oil stains on the transmission belts need to be cleaned with soapy water to dry and hang separately On the wall to prevent corrosion and aging.