Will you solve these common problems of vibrating screens?

The vibrating screen is a screening equipment capable of grading, dehydration, desliming, de-intermediation, and sorting. The vibration of the sieve body is used to loosen, stratify, and pass through the sieve to achieve the purpose of material separation. The screening effect of the vibrating screen not only has a great impact on the value of the product, but also has a direct impact on the efficiency of the next operation.

In daily production, vibrating screens will encounter various problems, such as bearing heating, parts wear, breakage, and screen hole blockage, wear, etc. These are the main reasons that affect the screening efficiency. Therefore, in order to improve efficiency, Solving these common problems is key to providing security for follow-up operations.

Arc vibrating screen

Vibrating screen bearing heating

In general, during the test run and normal operation of the vibrating screen, the bearing temperature should be kept in the range of 35~60°C. If the temperature exceeds this value, cooling treatment is required. The main reasons for the high bearing temperature are as follows:

1. The bearing radial clearance is too small

The radial clearance of the vibrating screen bearing is too small, which will cause the bearing to wear and heat up, mainly because the bearing carries a large load, the frequency is high, and the load is constantly changing.
Solution: It is recommended that the bearing adopt large clearance. If it is a bearing with ordinary clearance, the outer ring of the bearing can be ground to form a large clearance.

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Click to visit for details:https://www.hsd-industry.com/news/frequently-asked-questions-about-vibrating-screens/

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The importance of the briquette ball press machine roller skin for the ball press machine equipment

Those who have used the coal ball press machine know the importance of the pressure roller of the briquetting machine. The pressure roller is the core part of the briquetting machine. The two huge pressure rollers move in the opposite direction at the same speed and will reach the raw coal in the middle, etc. The material is pressed into pellets. The roller skin of the briquette briquette machine is the heart of the briquette machine equipment. If there is a problem with the roller skin of the equipment, it will directly affect the product quality.

The shape of the product depends on the mold of the roll skin on the pressure roller of the briquetting machine. Generally, there are many shapes such as polygonal shape, oval shape, and spherical shape to choose from.

There are many types and models of ball pressing machines, but the core of the ball pressing machine is composed of three parts: feeding part, rotating part and forming part. The forming part is the host part, and its core part is the pressure roller. Therefore, it can be said that the quality of the pressing roller directly determines the quality of the ball pressing machine. If the roller skin has been used for a long time or the roller skin is damaged, it needs to be replaced in time to avoid the production of products that are not up to standard, resulting in waste of raw materials.

briquetting machine

For the roller skin of the briquetting machine, there are many kinds of materials to choose from: 60Mn, high chromium alloy, 9Cr2Mo, etc. The commonly used roller skin of the coal briquetting machine is made of 9Cr2Mo, and 9Cr2Mo is a corrosion-resistant and wear-resistant material. A good material. The use of 9Cr2Mo forged roller skin can extend the service life of the briquetting machine equipment, prevent frequent wear and replacement, and greatly save maintenance costs. Generally, the internal organizational structure is different according to the origin of the raw materials, and the material and process of the roller skin used will also be different. We will customize a product plan suitable for you.

As an old manufacturer of briquetting machines, ZY mining produces various types of briquetting machines. As far as the use of briquetting machines is concerned, the briquetting machines we produce include: desulfurized gypsum briquetting machines, mineral powder briquetting machines, dry powder briquetting machine, etc.

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Click to visit for details:https://www.zymining.com/blog/importance-of-briquette-ball-press-machine-roller-skin.html

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Selection skills of kitchen garbage trucks

Now there are various types of kitchen garbage trucks on the market, and there are many manufacturers of garbage trucks. Among the dazzling array of garbage truck styles, how do we choose to choose a quality-guaranteed one? As one of the most common tool vehicles, kitchen garbage trucks must pay attention to the following four requirements when purchasing.

First, choose a company with a guaranteed reputation and reputation.

When the company’s popularity increases to a certain level, it proves that their product quality must be guaranteed. Once the kitchen garbage truck purchased from them has quality problems, it can be repaired or replaced at any time without worrying about after-sales service. The problem. Moreover, most users are not familiar with the maintenance of kitchen garbage trucks. At this time, they must rely on the after-sales service of the manufacturer.

kitchen garbage trucks

Second, choose the configuration of the garbage truck.

Kitchen garbage trucks are divided into several different styles according to different operating environments and uses. When we choose, we choose the appropriate garbage truck according to the actual situation. Generally speaking, the main task of the kitchen garbage truck is to transport garbage, and it must have a large capacity and good sealing, so that it will not affect the staff next to it when collecting garbage. At this time, we can choose a compressed kitchen garbage truck to collect and transport the restaurant garbage in batches, and then transport them to the designated processing location.

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For details, click to visit:https://www.ly-cimc-linyu.com/a/news/selection-skills-of-kitchen-garbage-trucks.html

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How to operate Kubota tractor clutch

In current agricultural production, the tractor is an irreplaceable power machine. The tractor clutch is installed between the engine and the gearbox. It works smoothly when in gear; limits the maximum torque that the drive train can withstand, and prevents the drive train from being overloaded.

Since the clutch is often used in the use of the tractor, how to operate the clutch correctly is particularly important. The tractor clutch manufacturer took the Kubota tractor clutch as an example to introduce the correct operation and use of the tractor clutch as follows:

1. When using the clutch to disengage, it must be quickly and thoroughly, and the pedal should be pressed to the bottom at one time, so as not to cause drag and linkage;

MF series

When the tractor is started, the clutch pedal is lifted violently, which will cause the clutch to be unsteady and produce an impact load, which will cause the friction lining to warp or even break due to the huge impact force; at the same time, it will also damage other working parts of the transmission system; If it is too slow, it will cause shock, vibration and even flameout.

When you start, you must master the essentials of “fast, pause, and slow”. The first is fast. After the tractor is put into low gear, quickly lift the clutch pedal to find the contact point. At this time, the tractor shakes and has a tendency to drive; and then “pause”, that is, after finding the contact point, the clutch should stop at this position. , to make the clutch friction plate engage smoothly; the last is “slow”, at this time, step on the accelerator gradually, and slowly lift the clutch pedal to ensure the tractor starts smoothly. The tractor should not be started with a load in a high gear. It should be in a low gear first, and then shifted into a high gear after starting.

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For details, click to visit:https://www.syclutch.com/news/kubota-tractor-clutch-operation.html

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How long is the life of mobile office shelving?

The service life of mobile office shelving is generally 30-50 years, and they can be used longer if they are well maintained. Although the replacement of mobile office shelving will not be as fast as small items, you should pay more attention when purchasing and using them. The life of the office shelf is related to its material quality, production process, maintenance method and other factors, so how long is the life of the mobile office shelf?

The service life of mobile office shelving

Mobile shelving

One of the more important factors about the service life of the mobile office shelf is the manufacturing process and raw material selection of the mobile office shelf purchased by the manufacturer of the mobile office shelf, because we all know that the mobile office shelf is used to store documents, so The mobile office shelf must have a certain load-bearing capacity. If the process or material selection is not good, it will be deformed or bent later. Therefore, when purchasing a mobile office shelf, you must choose a regular manufacturer, so that the life of the mobile office shelf is more guaranteed.

The second more important factor is the maintenance and maintenance of the user during use. Because of the good manufacturing process and material selection of the manufacturer, it is a new start for the mobile office shelf in the hands of the user. The user should avoid exposure to the sun during use. , These parts of the transmission chain should be cleaned regularly. If the office shelf is moved manually, it should also avoid the situation that the chain cannot be rotated due to rust. In addition, it is also necessary to pay attention to fire prevention and moisture resistance. Remember to protect against UV rays.

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For details, click to visit:https://www.etegreen.com/blog/service-life-of-mobile-office-shelving/

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What are the precautions for the operation of the square bottom machine?

When it comes to square bottom machines, most people may not know much about them. In fact, square bottom machines have been widely used in the packaging industry. Usually, the square bottom machine is used together with the paper tube machine. Using it can tightly seal the packaging bag, improve the bottom paste efficiency, reduce the scrap rate and save labor. So what are the precautions for the operation of the square bottom machine? I believe many people don’t know much about it. The manufacturer of the square bottom machine has made the following detailed introduction for you. Let’s find out together!

Operation process of square bottom machine

The operation process of the square bottom machine is as follows: firstly, the bag is taken out by the rotary automatic bag taking machine, and the paper bag is positioned and embedded in the slot of the conveyor belt. After reaching the opening and shaping station, the rotating claw inserts the opening tube into the bag and presses it to the next conveyor belt. Finally, make appropriate adjustments to the pasting width and lock it according to relevant specifications. Then the paper bag is sent to the valve sheet making and pasting station.

HT120-IIIASF Paper Tube Machine

After the valve sheet is pasted, it is sent to the gluing station to apply glue to the bag mouth. After two times of gluing, the bottom of the bag can be formed. After the paper bag is formed, the paper wing of the bag is folded against the deformed board at the end, combined on the core board (according to the fixed size), and run after the paste is released from the outer core, rolled firmly and counted and stacked.

Precautions for operation of square bottom machine

HD100-IB Square Bottom Machine

1. Pay attention to keep the equipment operation interface of the square bottom machine clean and clean it frequently.

2. In order to prevent the mechanical belt of the square bottom machine from slipping, it needs to be scrubbed with clean water frequently to keep it clean and prevent it from sticking. The rubber wheel and the glue box on the bottom of the hook must be cleaned after get off work every day, otherwise the glue in the glue box will solidify and affect the subsequent gluing effect.

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For details, click to visit:https://www.lyhuatianm.com/products-information/precautions-for-operation-of-square-bottom-machine.html

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Maintenance tips for slewing bearings of wheeled cranes

The slewing bearing of the wheeled crane is an important “joint” of the crane, so its maintenance is very important. When carrying out maintenance work, the first thing to be aware of is the risk of being dragged into the rotating pinion, crushing and shearing. When performing the following tasks, ensure that no maintenance personnel are in the danger zone between the main boom, upper carriage and roller, or between the lower carriage and roller when starting the engine to perform the necessary swing and luffing movements. Hazardous area, except for the crane operator (in the cab).

Wheeled Crane Maintenance

slewing bearings of wheeled cranes

1. Check the bolts of the slewing bearing

Before each crane work or at least once a week, check the bolts on the slewing bearing; after the first 100 working hours of the slewing bearing, check whether the bolts are loose, and then check again at the 300th working hour; check every 500 working hours thereafter Once; in severe working conditions, the inspection interval should be shortened.

When replacing bolts, first wipe the bolts clean, apply thread fastening glue and then tighten them; check the fastening bolts regularly to avoid the danger of bolt fatigue damage;

If the bolts are found to be loose during the inspection, please stop the construction work, and immediately contact the local after-sales service engineer, and let a professional inspect it to decide whether to disassemble and inspect immediately.

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For details, click to visit:https://www.excavatorbearing.com/a/bearing-knowledge/wheeled-crane-slewing-bearing-maintenance.html

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The structure and maintenance method of steel wire raceway bearing

Steel wire raceway bearings can also be called steel wire raceway bearings and steel wire bearings. As a new type of non-standard bearing, it has light weight and high rotation accuracy. The ability to carry both axial force and radial force has been widely used in the support of large-load, low-inertia, and large-diameter bearings. Steel wire raceway bearings can completely replace ordinary light-duty slewing bearings in certain usage occasions, and achieve the use effect that ordinary slewing bearings cannot achieve. Steel wire raceway bearing manufacturers have summarized the structure and maintenance methods of steel wire raceway bearings, let’s find out together.

The structure of steel wire raceway bearings

The structure of the steel wire raceway (runway) bearing is a structure surrounded by three entities. It generally consists of a fixed large table main body, a movable syringe seat gear and a compression ring, which enclose a square-section steel wire raceway bearing in the middle. If the steel ball in the square section is used as the center of the structure, then according to the position of the pressing ring relative to the steel ball and the center of the syringe, this support structure can be divided into: upper inner pressing ring type; upper outer pressing ring type; Ring type; lower inner pressure ring type; lower outer pressure ring type four forms.

However, in terms of the convenience of adjusting and replacing the steel wire raceway bearing, it is an example of all three solid surrounding steel wire raceway bearing structures. This structure is not only very convenient to adjust the gap of the steel wire raceway bearing, just loosen the screw and replace the thickness of the gasket. Moreover, when the steel wire raceway bearing needs to be replaced, the compression ring can be easily removed without removing any other parts, and a new steel wire raceway bearing can be reinstalled quickly.

Structural parameters of steel wire raceway bearings

Name Unit Structural Parameters
Nominal inner diameter mm 457
Nominal outer diameter mm 483
Diameter mm 9.52
Radius of curvature of inner ring steel wire mm 2
Inner raceway diameter mm 461.08
Radius of curvature of outer ring steel wire mm 2
Outer raceway diameter mm 478.94
initial contact angle a 45°
Elastic modulus E of steel wire and steel ball GPa 206
Steel wire and steel ball Poisson’s ratio γ 0.3
total radial load N 838.8.

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For details, click to visit:https://www.prsbearings.com/a/news/structure-of-wire-raceway-bearings.html

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ANALYSIS OF TECHNICAL CHARACTERISTICS OF FORGED SHAFT FORGINGS

Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain shaft forgings with certain mechanical properties, certain shapes and sizes. Forging and stamping belong to the nature of plastic processing, collectively referred to as forging. Forging is a common forming method in mechanical manufacturing. The as-cast looseness and welding holes of the metal can be eliminated by forging, and the mechanical properties of forgings are generally better than castings of the same material. For important parts with high load and severe working conditions in machinery, forgings are mostly used except for plates, profiles or weldments that can be rolled with simple shapes.

The recrystallization temperature of steel is about 460°C, but 800°C is generally used as the dividing line, and hot forging is above 800°C; it is called warm forging or semi-hot forging between 300 and 800°C.

Forging can be divided into cold forging and hot forging according to the temperature of the blank during processing. Cold forging is generally processed at room temperature, and hot forging is processed at a temperature higher than the recrystallization temperature of the blank metal. Sometimes it is also called warm forging when it is heated but the temperature does not exceed the recrystallization temperature. However, this division is not completely uniform in production.

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For details, click to visit：https://www.gold-emperor.com/technology-of-forging-shaft-forgings/

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How does the self-loading garbage truck work?

Self-loading garbage truck is a kind of garbage truck that has a very large demand in the sanitation vehicle market in recent years. This model is used in conjunction with plastic square drums or iron drums for the collection and transfer of urban domestic garbage trucks. The hanging bucket garbage truck is small in size, easy to operate, and has the function of self-loading and self-unloading, which greatly reduces the labor intensity of sanitation workers. It is very suitable for use in areas with narrow roads such as residential areas, streets, and rural areas.

Working status of self-loading garbage truck

One of the most notable features of the self-loading garbage truck is that the garbage bin full of garbage is lifted by the garbage bin lifting mechanism and automatically dumped into the box of the pull-through garbage truck. Today we will introduce the lifting mechanism of the self-loading garbage truck.

Self-loading Garbage Truck

The lifting mechanism of the self-loading garbage truck is mainly composed of hydraulic cylinders, lifting arms, pull rods, lifting frames, turning frames, rockers, rollers and guide rails.

When the self-loading garbage truck needs to load garbage, the control handle of the hydraulic cylinder is moved, the hydraulic system provides power through the hydraulic pump, and the piston rod of the hydraulic cylinder is pushed out, and the lifting arm rotates around the distance between it and the box under the thrust of the piston rod. The hinge point swings, and the lifting arm drives the pull rod to move upwards, and then drives the lifting frame with the trash can to move upwards along the secondary guide rail of the reversing frame until the trash can touches the pressing plate on the reversing frame, and drives the reversing frame to move upwards along the main rail.

When the rollers at the upper end of the turning frame move to the end of the curved track at the top of the main rail, the upper rollers are blocked and stop, and at the same time, the pull rod continues to pull up the lifting frame, so that the axis line of the upper rollers of the turning frame is the turning axis to turn over the trash can until the trash can is finished. Garbage is automatically dumped.

Self-loading Garbage Truck

After the garbage is emptied, oil is reversely fed through the double-acting hydraulic cylinder, and the piston rod starts to retract. The lifting arm swings in the opposite direction, so that the garbage can returns to the initial position, and the working process of automatically filling garbage is completed.

Self-loading garbage trucks not only have a wide range of functions, but also have strong scalability. Add a compression push plate to the box of the self-loading garbage truck to become a compressed self-loading garbage truck. Add filter plate in the box, it can be used as a kitchen garbage truck. In addition, we can also add a weighing function to the self-loading garbage truck to detect the amount of garbage collected and so on.

For more details about self-loading garbage trucks, please click to visit: https://www.ly-cimc-linyu.com/sanitation-truck/self-loading-garbage-truck.html

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