To operate the road sweeper safely, you need to be alert to these points!

The road sweeper is a relatively common sanitation vehicle on the road at present. It can not only clean up garbage, but also dedust and purify the air on the road.

At present, the road sweeper has become one of the important helpers in sanitation work, so it is also very important to operate the road sweeper correctly. Injured by the operation.

Today, the tanker sales manufacturer mainly introduces 6 aspects that need to be paid attention to when using the road sweeper, so that we can operate and maintain the car more smoothly.

Pay attention to mechanical damage

When starting the road sweeper, you should pay attention to the gear position of the transmission to prevent the road sweeper from accidentally moving and hurting people. When working under the hood, other people should be allowed to leave the cab to prevent accidental injury caused by sudden rotation of the engine or misoperation by others. If it is necessary to work under the vehicle, obvious signs should be set up, and the road sweeper should be covered with a car cover. When using a jack to support the car, the jack should be placed stably. Before driving, you should prepare driving tools (driving stool), and it is forbidden to use fragile objects such as bricks. When installing the assembly, do not test the screw holes, keyholes, etc. by hand to avoid breaking your fingers. When testing the engine, it is not allowed to work under the road sweeper.

Watch out for fire

When maintaining the road sweeper, it is often necessary to use flammable and explosive items such as oil and cleaning agents. At this time, don’t forget the fire-fighting measures and prepare a fire extinguisher just in case. Do not smoke near the fuel tank and battery, because the flammable gas overflowing from the fuel tank and the hydrogen gas overflowing from the battery are easily ignited.

Watch out for burns

The engine that has just been turned off must be touched carefully to prevent burns due to the relatively high temperature of the various components of the engine (water tank, exhaust pipe, power steering fluid tank, and spark plug, etc.). If the engine temperature of the road sweeper is high, never remove the water tank cover or release the water switch to prevent burns.

Do not damage the road sweeper

Brake fluid has a damaging effect on the paint film of the car (including the paint film of leather shoes), and it can quickly dissolve the paint film of the car. Brake fluid is harmful to the eyes. If it splashes into the eyes, it must be washed away with clean water immediately.

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For more information about the precautions for the operation of road sweepers, please click to visit:https://www.ly-cimc-linyu.com/a/news/precautions-for-road-sweeper-operation.html

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What are the common faults in the process of using the bag making machine?

The bag making machine is a machine for making various plastic packaging or other material packaging bags. Its processing range is various sizes of plastic or other material packaging bags with different thickness and specifications. During the use of the bag making machine, there will be many problems. This article will help you to eliminate the use of the bag making machine.

1. The cold cutter of the flat mouth machine cuts continuously

When the cold cutting knife of the flat machine is always cutting continuously, check whether the cutting knife is sharp and whether it needs to be re-sharpened; check whether the balance of the upper and lower knives is appropriate balance.

2. The flat mouth machine cuts three or more strips, and the size of the bag is different.

Put a layer on the rubber roller behind the thin film, so that it can be evenly mixed with other materials.

3. The spring of the flat mouth machine is broken

If the self-adhesive strip is not in place, if it is tilted up and rolled into the spring, the spring will break, so the self-adhesive strip must be pasted properly during operation. Another reason is that the material is not neat or stuffed into the rubber roller, causing the spring to break.

3. There is a big difference between the two sides of the edge sealing of the bone bag making machine
It is necessary to adjust the aluminum pressure roller well, and adjust it to press both sides of the sealing edge, so as to avoid this situation.

4. The self-adhesive strips cut by the side sealing machine often stick to the conveyor belt

The self-adhesive strip is misplaced and stuck to the conveyor belt. It is necessary to adjust the self-adhesive position of the edge correcting machine behind.

5. There are burrs on the OPP cutting edge or the explosion-proof edge will be rotten

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For more information about frequently asked questions about the use of paper bag packaging machines, please click to visit:https://www.lyhuatianm.com/products-information/bag-making-machine-failure.html

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DETAILED EXPLANATION OF GEAR FORGING ANNEALING HEAT TREATMENT PROCESS

Carburized steel 20CrMnTi forgings are air-cooled to room temperature after forging to obtain a mixed structure composed of ferrite, pearlite, Widmansite and bainite. After heating to 930°C for carburizing and cooling to 850°C for quenching, coarse austenites still appear. Body grains, showing obvious tissue heredity. If after forging, after heat treatment, a mixed structure of ferrite and pearlite is obtained, after carburizing and quenching, the structure is obviously refined, and there is no organization heredity, which is the significance of heat treatment after forging. The main purposes of heat treatment for small gear forgings are:

(1) Eliminate forging stress.

(2) Obtain a relatively uniform metallographic structure and improve cutting performance.

(3) Reduce the deformation of the gear after carburizing and quenching.

gear

1. ISOTHERMAL ANNEALING

The forging material is 20CrMnTi, and the equipment is an isothermal annealing continuous furnace, which consists of a high temperature zone, a rapid cooling zone and an isothermal zone.
The isothermal annealing process is an advanced high-temperature heating zone for forgings. It is heated from room temperature to 940°C and held for a period of time to make it fully austenitized. Then it enters the rapid cooling zone and is rapidly cooled from 950°C to 650°C within 5~10 minutes. Make the forgings quickly enter the correct phase transformation range, and then keep warm at 650°C to make the forgings fully phase-transform to ferrite + pearlite structure, and send them out of the furnace to air cool to room temperature.

It should be noted that due to the different sizes of forgings, the isothermal annealing process curve should be adjusted according to the actual situation of the production site. The principle is to ensure that the metallographic structure of forgings is 1~3, and the surface hardness is preferably controlled at 160~210HBW. After testing, this production process is also suitable for the annealing of small shaft forgings, and the production capacity of the equipment is 600kg/h.

2. WASTE HEAT ANNEALING

The forging material is 20CrMnTi, and the equipment is a mesh belt waste heat annealing furnace, which is composed of a heating furnace and a rapid cooling chamber. The preheating annealing process is that after the forging is formed, it is directly sent into the heating furnace, kept at 650°C for 45 minutes, and then enters the rapid cooling room, and is cooled to below 70°C within 20 minutes.

When annealing with residual heat of forgings, the key point is to grasp the temperature of forgings entering the furnace and the holding time in the furnace. After field tests, it is found that the temperature of general forgings entering the furnace should be controlled above 800°C. At this time, the metallographic phase and hardness after annealing are most suitable; Forgings below 800℃ are likely to have unqualified microstructure and hardness after annealing with residual heat, so strict attention should be paid to them. The holding time and temperature cannot be generalized, and should be adjusted appropriately according to the size and thickness of the forging.

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More information about gear forgings can be accessed by clicking：https://www.gold-emperor.com/forging/forged-auto-parts/precision-forged-gear/

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Solutions to common problems of crane slewing mechanism

For hydraulic cranes, the slewing drive and motion control of the slewing mechanism mainly depend on the hydraulic system. Therefore, the common faults of the slewing mechanism are firstly related to the hydraulic system. The slewing mechanism is composed of three parts: the support device, the slewing drive device and the turntable. Its important mechanical part, the slewing support, is an important force-bearing part. It not only bears the weight of the slewing part of the crane, but also bears the vertical force of the lifting load. and overturning moment forces.

In the process of use, there must be wear and tear, and the performance of related mechanical parts will gradually deteriorate or even be damaged. Therefore, common failures of the slewing mechanism are also related to the mechanical part. Accordingly, crane failure analysis can generally start from two aspects: mechanical failure and hydraulic system failure. According to the relevant staff, the common faults of the slewing mechanism mainly include excessive clearance of the slewing bearing (wild movement), slow (weak) or immobile movement of the slewing system, abnormal system pressure, oil leakage, and failure to lock the slewing brake valve, etc. .

Weak or unable to rotate (system pressure is normal)

1. The hydraulic motor fails and the power cannot be output normally. Repair or replace it.

2. The reducer breaks down and affects the power transmission, check and adjust.

3. In case of overload, the lifting capacity must be checked again to avoid overload.

4. The overflow valve and manual control valve are faulty, check and adjust.

Cannot rotate (system pressure is normal)

1. The gear or worm gear or worm of the slewing reducer is damaged, check and repair.

2. The hydraulic motor plunger or bearing is stuck or severely worn, check and repair.

3. The output shaft of the hydraulic motor is broken and replaced with a new one.

slewing drive

Swing hydraulic system pressure is low

1. Fault phenomenon

If the crane is unloaded or lightly loaded, the sound and speed of its rotation are normal, but when the crane is heavily loaded, it will be difficult to rotate or even unable to rotate.

2. Cause of failure

The possible reasons for this phenomenon are: low pressure of the relief valve of the rotary hydraulic system, wear of the hydraulic motor, serious internal leakage or low pressure setting of the control valve, severe wear of the valve stem of the control valve, large internal leakage, and pressure loss.

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For more information about the slewing bearing for truck with crane, please click to visit:https://www.excavatorbearing.com/Slewing-bearing-for-truck-crane.html

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What are the categories of industrial robot bearings?

As one of the key components of industrial robots, industrial robot bearings are most suitable for the joints or rotating parts of industrial robots, the rotating table of machining centers, the rotating part of manipulators, precision rotating tables, medical instruments, measuring instruments, and IC manufacturing. devices and so on. The industrial robot bearings mainly include two categories, one is equal-section thin-walled bearings, and the other is cross-cylindrical roller bearings. In addition, there are harmonic reducer bearings, linear bearings, joint bearings, etc., but mainly the first two bearings.

Features of industrial robot bearings:

1. It can withstand comprehensive loads in axial, radial and overturning directions;

2. Thin-walled bearings;

3. High rotary positioning accuracy. Any bearing that meets this design requirement can be used in industrial robot arms, rotary joints, chassis, etc.

Types of Industrial Robot Bearings

1. Cross roller bearing

Crossed roller bearings are cylindrical rollers or tapered rollers arranged vertically on the 90-degree V-shaped groove rolling surface through spacers, so crossed roller bearings can bear radial loads, axial loads and moment loads and other multi-directional loads. The size of the inner and outer rings is miniaturized, and the extremely thin form is even closer to the limit of small size, and has high rigidity, and the precision can reach P5, P4, and P2 levels. Therefore, it is suitable for joints and rotating parts of industrial robots, rotating tables of machining centers, precision rotating tables, medical equipment, calculators, military industry, IC manufacturing equipment and other equipment.

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More information about industrial robot bearings can be accessed by clicking：https://www.prsbearings.com/Robot-bearing.html

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HYDRATED LIME EQUIPMENT PROCESS FLOW

The technological process of the hydrated lime equipment is to add the raw quicklime from the loader to the silo, evenly add it to the jaw crusher through the vibrating feeder, and crush it to about 30-50 mm. The dust generated during the crushing process of the equipment is introduced into the pulse bag filter outside the workshop by the induced draft fan through the dust cover of the jaw crusher. The calcium oxide powder of the filter should be cleaned once a week.

Hydrated lime equipment adopts a double-shaft stirring structure, which has multiple functions such as stirring, crushing and agglomeration, and self-cleaning. Its unique paddle and stirring formula make quicklime and water mix evenly, react fully, and play a role in the agglomeration generated during the reaction.

The feed port of the digester is designed with a screw feed propeller to facilitate material transportation. In order to prevent the backflow of dust generated during the digestion process, the equipment is equipped with a special steam and dust discharge port, which can be discharged to a special dust removal system through a connecting pipe, and is used with DMC pulse dust removal Q device in conjunction with hydrated lime equipment, which can handle quicklime well dust and harmful gases produced during digestion. Waste dust and lime can be reused after use, and the environment has no dust pollution, which meets the requirements of environmental protection development.

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Click to visit for details：https://www.ly-gaifeng.com/blog/hydrated-lime-equipment-process-flow.html

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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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