How to maintain the slewing bearing during use?

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We know that the quality of the slewing bearing itself is the main factor affecting the service life of the bearing, but no, because in addition to the quality of the bearing, there is also a very important issue, that is, the maintenance and maintenance of the bearing during its use, but, How to maintain the slewing bearing during use?

Lubrication of slewing bearing

Slewing Bearings

1. Lubrication

(1) Reduce friction and wear. In the mutual contact parts of the rings, rolling elements and cages that constitute the bearing, metal contact is prevented, and friction and wear are reduced.

(2) Extend the fatigue life. The rolling fatigue life of the bearing is extended when the rolling contact surface is well lubricated during rotation. Conversely, if the oil viscosity is low and the lubricating oil film thickness is not good, it will be shortened.

(3) Discharge frictional heat and cooling. The oil circulation method, etc., can use oil to discharge heat generated by friction or heat from the outside, and cool it. Prevent the bearing from overheating and prevent the aging of the lubricating oil itself.

(4) Others. It also has the effect of preventing foreign matter from entering the inside of the bearing, or preventing rust and corrosion.

2. Lubrication method

Bearing lubrication methods are divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, it is necessary to select a lubrication method suitable for the conditions of use and the purpose of use. If only lubrication is considered, the lubricity of oil lubrication is dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing. Compare the advantages and disadvantages of grease lubrication and oil lubrication.

Cleaning of slewing bearing

1. Selection of cleaning materials

As the cleaning agent, cleaning agent and kerosene are generally used. In addition, pay attention to sealing the cleaning agent when not in use to avoid the entry of external magazines and contaminating the cleaning agent. In the case of inattentiveness, cleaning the bearing with the contaminated cleaning agent will not only not have a cleaning effect, but will contaminate the bearing and cause the bearing to be polluted. Running brings stress.

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Details can be accessed by clicking here:https://www.ldb-bearing.com/ldb-bearing-knowledge/how-to-maintain-the-slewing-bearing-during-use.html

Introduction to the structure and working principle of vibrating screen

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Vibrating screen is a kind of filtering mechanical separation equipment. It has a wide range of applications and is often used in mining, coal, smelting, building materials, chemical industry, light industry, food, medicine and other industries.

Although the vibrating screen is widely used in our lives, many people are not clear about its structure and working principle. Next, the vibrating screen manufacturer will introduce the structure and working principle of the vibrating screen to you.

The structure of the vibrating screen

Linear vibrating screen

1. Vibration exciter

The main function of the exciter is to enable the working body to vibrate continuously. There are generally two types of vibration exciters for uniaxial vibrating screen and biaxial vibrating screen according to the eccentric reconfiguration method.

2. Sieve box

The screen box of the vibrating screen is mainly composed of the screen frame, the screen surface and its pressing device. The screen frame is composed of side plates and beams, which need to have sufficient rigidity.

3. Supporting device

There are two types of support devices for vibrating screen: seat type and hanging type. Because the seat type installation is relatively simple, and the installation height is also low, the seat type support is preferred. The support device of the vibrating screen is mainly composed of elastic elements, commonly used are coil springs, leaf springs and rubber springs.

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Details can be accessed by clicking here:https://www.hsd-industry.com/news/the-structure-and-working-principle-of-vibrating-screen/

What are the reasons for conveyor downtime?

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The conveyor is mainly used for the transportation of materials. It has the point that the direction is changeable and the conveying direction can be flexibly changed. We commonly have screw conveyors and belt conveyors, etc. Among them, belt conveyors are the main way of conveying bulk materials. When we use or maintain the machine improperly, the conveyor may fail and cause downtime. Do you know the reason for the downtime of the conveyor?

Reasons for screw conveyor downtime

The screw conveyor has the advantages of small cross-sectional size of the whole machine, good sealing performance, multi-point loading and unloading in the middle, and easy operation and maintenance. It is suitable for conveying powdery, granular and small block materials. It is widely used in building materials, metallurgy, Chemical, electric power, coal, machinery, grain, food and other industries; it is not suitable to transport materials that are perishable, viscous, and easy to agglomerate.

The reasons for the stoppage of the screw conveyor are:

screw conveyor

1. The material is too large

Problem: The material to be conveyed is too large, the material cannot pass through the middle hanging bearing smoothly, and the material resistance at the middle bearing is too large, causing the screw conveyor to stop suddenly.

Solution: judge the size of the material before conveying to avoid the material being too large and stuck in the middle of the hanging bearing, resulting in downtime.

2. Material blockage

Problem: Blockage of material in the screw conveyor can also cause the motor to be overloaded and shut down.
Solution: We must clean up the material in the screw conveyor, keep the conveyor unobstructed, and install a belt cleaner to avoid blockage due to excessive viscosity of the material.

3. Seal damage

Problem: The resistance at the intermediate bearing is too large and the seal is damaged. Material entering the bearing causes the bearing not to rotate or the bearing is damaged.

Solution: The seal needs to be replaced, and the abnormality at the intermediate bearing should be checked for repair.

4. Bearing burnt

Problem: The reducer bearing is burnt, resulting in downtime.

Solution: Replace the new parts to ensure the normal operation of the machine.

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Details can be accessed by clicking here:https://www.zymining.com/blog/reasons-for-conveyor-downtime.html

How much is a 5 ton tank truck?

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Oil tank truck, as the name suggests, is a vehicle for transporting oil. Such vehicles are mainly used for crude oil transportation, so they are dangerous. However, if there is no such vehicle, many private cars will not be able to refuel. For users such as gas station owners or logistics and transportation companies, there is still a lot of concern about how much a 5-ton tank truck costs. Then let’s take a look at the price of a 5-ton tank truck!

How much is a 5 ton tank truck?

From a comprehensive market perspective, the price of a 5-ton tanker is around 100,000-120,000 per unit. So how did this offer come about? What fees are included?

We all know that the price of refueling trucks/tank trucks is composed of the chassis price and the top-loading price, but what about the subdivision? Maybe many users are not very clear, the following tank truck sales manufacturers will give you a detailed introduction.

1. For a tank truck/refueling truck, the chassis is manufactured by the original chassis of different companies. The price of the chassis is determined by the company. For the upper part, it includes the European standard tank mouth and the subsea valve (1 under 12 square meters). Tank mouth, 1 subsea valve, 2 European standard tank mouths from 12 to 26 square meters, 1 subsea valve, two European standard tank mouths above 26 square meters, two subsea valves) warehouse, tanker, flow meter, pump, water tank , toolbox, bead valve, etc.;

2. Add 1,000 yuan for each additional warehouse; add 500 yuan for an additional self-flow (aluminum alloy);

liquid transporter

3. Add 6,000 yuan for the reel of a tax-controlled refueling machine, 1,000 yuan for the optional large flow, and 1,500 yuan if you choose a large brand refueling truck; 2,000 yuan for the installation of a flow meter; 2,000 yuan for the installation of a flow meter :3000 yuan;

4. Price increase for stainless steel ball valve: two DN65 price increases by 800 yuan, DN80 price increase by 1500 yuan; DN100 price increase by 2000 yuan;

5. For every millimeter of thickness of the tank, the price will be increased by 1500 yuan;

6. The price is reduced by 3,000 yuan without the pump, and the price of the tool box and water tank is increased by 300 yuan; the European standard full set is increased by 8,000 yuan;

7. Other insurance costs: The tanker is a special model, which is more dangerous in terms of safety. It is loaded with flammable and explosive oil or gas substances. Therefore, the other costs of the tanker are different. There will be more insurance costs, including commercial insurance and compulsory traffic insurance or carrier liability insurance or anchoring and other related costs, and the price of vehicles of different tonnages is also different.

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Details can be accessed by clicking here:https://www.ly-cimc-linyu.com/news/5-tons-oil-tank-truck-price/

WHAT ARE THE TYPES OF FORGING PROCESSES?

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Forging is a processing method that uses a forging machine to apply pressure to a metal blank to plastically deform it to obtain a forging with certain mechanical properties, certain shape and size. Forging (forging and stamping) is one of the two major components. Through forging, defects such as as-cast looseness generated in the metal smelting process can be eliminated, and the microstructure can be optimized. At the same time, due to the preservation of the complete metal streamline, the mechanical properties of forgings are generally better than those of castings of the same material. For important parts with high load and severe working conditions in related machinery, forgings are mostly used in addition to rolling plates, profiles or welded parts with simple shapes.

The initial recrystallization temperature of steel is about 727 °C, but 800 °C is generally used as the dividing line, and hot forging is higher than 800 °C; between 300 and 800 °C, it is called warm forging or semi-hot forging. called cold forging.

Forgings used in most industries are hot forging. Warm and cold forging are mainly used for forging parts such as automobiles and general machinery. Warm and cold forging can effectively save materials.

PROCESS CLASSIFICATION

According to the forging temperature, it can be divided into hot forging, warm forging and cold forging.

According to the forming mechanism, forging can be divided into free forging, die forging, ring rolling and special forging.

Rocker arm forgings

1. FREE FORGING

It refers to the processing method of forgings that use simple universal tools or directly apply external force to the blank between the upper and lower anvils of the forging equipment to deform the blank to obtain the required geometric shape and internal quality. Forgings produced by the free forging method are called free forgings. Free forging is mainly based on the production of small batches of forgings. Forging equipment such as forging hammers and hydraulic presses are used to form and process the blanks to obtain qualified forgings. The basic processes of free forging include upsetting, drawing, punching, cutting, bending, torsion, offset and forging. Free forging is all hot forging.

Advantages: Free forging has the characteristics of flexible process, high versatility of equipment and tools, and low cost. Since free forging is formed gradually, the required deformation force is small, so it is the only way to produce large forgings (above 300T).

Disadvantages: low productivity, low precision forgings, high labor intensity, mostly used for single-piece and small batch production of forgings with simple shapes and low precision requirements.

2. DIE FORGING

Die forging is divided into open die forging and closed die forging. The metal blank is compressed and deformed in a forging die cavity with a certain shape to obtain a forging. Die forging is generally used to produce parts with small weight and large batches. Die forging can be divided into hot forging, warm forging and cold forging. Warm forging and cold forging are the future development direction of die forging, and also represent the level of forging technology.

According to the material, die forging can also be divided into ferrous metal die forging, non-ferrous metal die forging and powder product forming. As the name implies, the materials are ferrous metals such as carbon steel, non-ferrous metals such as copper and aluminum, and powder metallurgy materials. Extrusion should belong to die forging, which can be divided into heavy metal extrusion and light metal extrusion.

Closed die forging and closed upsetting are two advanced processes of die forging. Since there is no flash, the utilization rate of materials is high. It is possible to complete the finishing of complex forgings in one or several operations. Since there is no flash, the stressed area of ​​the forging is reduced and the required load is also reduced. However, it should be noted that the blank cannot be completely restricted. For this reason, the volume of the blank should be strictly controlled, the relative position of the forging die should be controlled and the forging should be measured, and efforts should be made to reduce the wear of the forging die.

Hinge

3. ROLLING RING

Ring rolling refers to the production of ring-shaped parts of different diameters through special equipment ring-grinding machines, and is also used to produce wheel-shaped parts such as automobile hubs and train wheels.

4. SPECIAL FORGING

Special forging includes roll forging, cross wedge rolling, radial forging, liquid die forging and other forging methods, which are more suitable for the production of parts with special shapes. For example, roll forging can be used as an effective preforming process to greatly reduce the subsequent forming pressure; cross wedge rolling can produce parts such as steel balls and drive shafts; radial forging can produce large forgings such as barrels and stepped shafts.

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Details can be accessed by clicking here:https://www.gold-emperor.com/types-of-forging-processes/

Bright Future of Tricycles in Countryside

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The tricycles own bright future in countryside. What are the specific advantages of tricycles in the countryside?

 

  1. More Affordable Prices.

Compared with the automobile, tricycles sales price and the afterwards maintenance cost is much lower than, which is more preferred in countryside region

 

  1. Daily Conveniences.

Not only for passengers, but also can be for cargos, the tricycles is a kind of versatile transportation tool. For the old people who are not easy to move, the tricycles just expand their scope of daily activities, providing convenience for shopping, laboring. Moreover, the driving skill of a tricycle is not as complicated as driving a automobile.

 

  1. Multi-functions.

On one tricycle, a certain number of people or a considerable volume of cargos can be loaded. People can use it to send kids around the villages to school, or deliver the cargos to towns for trading.

 

  1. Strong Passing Capability

Due to the smaller sizes and simple handling, tricycles are suitable to various kinds of terrains, no matter in plain area or mountain area, it can show the strong passing capability in terms of countryside life. This is also one of the important reasons why it is preferred in countryside.

 

All in all, tricycle is an important assistant tool in countryside. It is believed it can enjoy a bright future here.

Good Manufacturers Recommendation——Clutches

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Chongiqng Nanyang Motorcycle Parts Co., Ltd., is subordinate to China South Industries Co., Ltd., and obtained the ISO9002 QC qualification in Oct, 1999. Since the year 1985 to start mass production of motorcycle clutches, they have owned the annual production capacity of 3 million sets up to now, covering all the mainstream motorcycle models with a variety of products line ups.

Their manufacturing machines include: 1 unit of 550T Pressing Machine, 2 units of 400T Pressing Machine, 2 units of 200T Pressing Machine, 1 unit of Laser Welding Machine, 3 units Three Axis CNC Milling Machine, 3 units of 50T Hydraulic Pressing Machine, 1 unit of Rotary Forging Riveting Machine, 30 units of CNC lathe, 2 units of Multi Head Drilling Machine, 1 unit of Multi Head Tapping Machine, 5 units of Cleaning Machine and 2 units of Shot Blasting Machine, moreover, they have a Inspection Center with various types of Inspection Instruments, all of which just lay the solid foundation for their supreme products quality.

Machines only cannot lead to good products, and the people who control the machine is more important in a way. Due to the good management, the stable and proficient production workers team is another strength which gives more competitive edge to them.

95% of the whole parts of a clutch are produced by themselves with strict QC. Therefore, They are serving most of the famous motorcycle brands in China like Haojue, DAYANG, Zongshen, Locin, DAYUN, HaoJin, etc., as the OEM parts supplier. Beside the domestic market, their products are also exported to many countries in Europ, America, Africa and South East Asia. They have become an outstanding professional motorcycle clutches supplier with integrated capability of R&D, Manufacturing and Sales.

We Luoyang Doer Trading Co., Ltd. cooperates with them as their oversea sales agent. We directly sell the products with their EXW prices. If you feel interested, please feel free to contact us!

Motorcycle Parts Suppliers in China

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In China, there are mainly three types of suppliers for both two wheel motorcycles and tricycles (three wheel motorcycles).

 

The first one is the cycle-assembler. For example, Zongshen, Locin, DAYANG, they manufacture some key parts like frames, crankcase covers, cylinders, as well as purchasing most of the parts from their own Procurement Systems(OEM Suppliers), and then assemble the CBU in their own factories. When customers need some spare parts, except the few parts produced by themselves, mostly they will purchase from their OEM suppliers and then add around 30% profits and sell to the customers as Genuine Parts (Original Parts).

Advantages: You can purchase various types of spare parts from it; they are always Genuine Parts.

Disadvantages: The price is higher.

 

The Second one is the Parts Manufacturers. These are often big manufacturing companies who specialize in producing one kind of part. For example, from a bearings manufacturer, you can get bearings with a variety of specifications. But this is only applicable for big companies who can make exportations by themselves. For some medium-sized factory, generally they just mainly focus on manufacturing instead of paying efforts in oversea sale, while this kind of factory take the majority in China.

Advantages: For a certain kind of part, you can get preferred specification, and the reasonable price.

Disadvantages: You cannot get all the kinds of parts you need; the purchase should be in big volume.

 

The Third one is the Trading Company. They often have comprehensive connections with many parts manufacturers, even the medium or small sized factories who can produce good parts with cheaper price but don’t export by themselves. Such trading company can offer one-stop purchase service and more flexible customization production to the customers. Moreover, due to the low operation cost, the prices are often competitive.

Advantages: one-stop and customized purchase service with reasonable prices; efficient search to select the suitable parts for you.

Disadvantages: you may not know where the factory is

 

You can choose the proper way for your own importation. It is suggested as the followings:

  1. If you are importing CBU or KD parts (for final assembly in final destination) from a cycle-assembler(like Zongshen, Loncin, DAYANG or some others). For spare parts used for after sale market of your cycles, you can consider to use another two ways for your purchase. A specialized parts manufacturer or a believable trading company can supply the parts with same quality, what’s more important, with cheaper prices.
  2. If you are an importer and distributer for some appointed parts only, for example, batteries, tires, chains, clutch plates, brake pads, etc. You can choose the big specialized manufacturer as your supplier.
  3. If you almost need all the parts for a cycle, or you need some parts with better Cost Performance. No doubt that a trading company is your best choice.

 

We Luoyang Doer Trading Co., Ltd., with more than 10 years of experience in spare parts industry and sense of heartily service, can help you to search for the most suitable cycle spare parts for you.

LONCIN Tricycle

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Located in Pingdingshan City, Henan Province, Henan LONCIN Vehicle Co., Ltd. is subordinate to  LONCIN MOTOR CO., LTD., and a professional manufacturer of tricycles (three wheel motorcycle) and parts.

The company covers 98.4 acres, and owns 4 professional parts manufacturing workhouses, advanced painting production line, pretreatment flow line, punching & pressing production line, auto welding production line, 6 assembly flow lines, 3 CBU inspection lines, which forms the complete industrial chains of tricycle(three wheel motorcycle) productions.

The tricycles produced here with trademark “LONCIN” cover various of function purposes with 110-650cc power range. The products are popular in domestic markets and exported to countries in Southeast Asia, Africa and South America as well. “LONCIN” brand is a Well-Known Trademark in China, and also won China Brand, China Export Brand-name title.

No matter you want a transportation tools for cargos, or a commuting tool for daily life, or a taxi to earn a living, LONCIN can always offer you the ideal tricycles with accountable performance.

We Luoyang Doer Trading Co., Ltd. can supply the genuine parts and accessories for LONCIN tricycles (three wheel motorcycles) with competitive prices than you directly purchase from LONCIN. If you have any demands, please feel free to contact us any time! We can facilitate your purchase in China for three wheel as well as two wheel motorcycle parts and accessories.

Recommendation of a Good Tricycle Engine

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In Luoyang Tricycle Indutrial Base, a good 175cc air-cooling tricycle (three wheeler) engine has just been successully tested in Aug.2021. With over 6 yearts R&D, a tricycle assembler  in Luoyang has worked out this engine and obtained the Intellectual Patent for it.

With 10,000rpm for 12 hours consistently, even the muffler was burned to red-color, the engine’s temperature is still well controled and the engine oil’s temperature is only 125 degrees-centigrade, which can take on the water-cooling engine already.

The stronger power and more ecnomic cost of this engine can offer more benefits for our worldwide customers!

We are searching for the good products for our customers by cooperating with the competitive manufacturers!