Do you know how tractor clutches work?

In modern agricultural production, tractor is a very important machine, and no other machine can replace the work of tractor. Therefore, tractor is widely used in agricultural production at home and abroad.

The use of the tractor clutch can ensure the smooth shifting and shifting of the tractor, and is one of the important accessories to ensure the normal operation of the tractor. With the development of society and the advancement of science and technology, knowledge such as electricity , heat, and information technology has been gradually applied to the machinery manufacturing industry, and the manufacturing technology of tractors has also improved, and has begun to gradually develop towards informatization, which has a great impact on the quality and performance of tractor clutches. Requirements have been further improved. Therefore, the research on the working principle of tractor clutch, how to use it and its maintenance and repair is also the work that tractor manufacturers and users have been doing all the time. Today, I will simply share with you how the tractor clutch works, precautions for use and how to overhaul.

How the tractor clutch works can be understood from its structure and working principle.

tractor clutch

 

The composition and working principle of the tractor clutch

The tractor clutch is mainly composed of four parts, namely: the active part, the driven part, the pressing device and the operating mechanism. The clutch is mainly composed of a flywheel and a pressure plate of the clutch. The flywheel is directly connected to the crankshaft of the engine and is controlled by the crankshaft; the clutch pressure plate is connected to the gearbox, and the transmission force is transmitted to the gearbox through the combination of the flywheel and the clutch pressure plate. The gearbox performs shifting work. In the process of using the clutch, there are two states, namely the combined state and the disengaged state. When the clutch is in the engaged state, the pedal of the clutch is at the highest position, at this time, there is no contact between the release lever in the clutch and the release bearing, and the clutch pressure plate presses the driven plate, thereby transmitting the transmission force to the transmission; while in the disengaged state When the clutch pedal is stepped on, the gap between the release lever and the release bearing is eliminated. At this time, the pressure plate and the release lever move downward under pressure, causing the pressure on both sides of the driven plate to decrease and disappear. The transmission force is transmitted to the transmission, that is, the disengagement state of the clutch.

Precautions for the use of tractor clutches

1. When starting, the clutch pedal should be lifted correctly

When the tractor is just starting, the clutch pedal should be stepped on correctly, and the clutch plate should not be lifted violently, which will make the clutch combination not stable enough and cause great damage to the friction plates. The correct starting method should be “fast, slow, slow”. When the tractor starts, quickly make it in a low gear, and pause to find the contact point at this time, and then change to a high gear to protect the safety of the tractor clutch. , to avoid unnecessary safety accidents caused by clutch damage when the tractor starts.

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Details can be accessed here: https://www.syclutch.com/news/how-tractor-clutches-work.html

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Paper tube machine operating procedures and precautions

Paper tube machine is an important mechanical equipment specially used for paper tube production. Many industries will use this equipment. In order to ensure the normal operation of the paper tube machine and ensure production efficiency, when we use the paper tube machine, we must follow the paper There are also many problems that need to be paid attention to in the use of equipment.

What is the operating procedure of the paper tube machine?

1. Before work.

(1) The environment around the paper tube machine should be kept clean, and the materials and related auxiliary tools to be processed should be prepared. The operator should wear tight clothes or fasten the clothes. It is strictly forbidden for the operator to wear skirts , slippers, and loose hair to operate the equipment.

(2) Check whether the various parts of the paper tube machine can work normally.

(3) Before starting, use a special tool to clean the abrasive shaft, remove the excess glue in the mold shaft, and then blow it with compressed air.

(4) Be sure to refuel the brass sleeve before starting the machine.

(5) Before starting, the ventilation valve must be refueled frequently.

Paper tube machine

 

2. Work.

(1) Before entering the job, the operator must go through relevant training, know how to use the equipment, understand the structure and principle of the paper tube machine, and understand the safety protection.

(2) Untrained or unqualified employees shall not use the paper tube machine.

(3) When operating the equipment, operators should keep their energy and concentration, and must not drive desertions to avoid accidents.

(4) When cutting the paper tube, keep a certain distance from the machine, and wait for the paper tube to be placed before cutting.

(5) When the equipment is running, if it is found that the machine is abnormal or faulty, the machine should be stopped immediately and the abnormality should be dealt with in time.

(6) During the operation of the paper tube machine, the operator is not allowed to leave the work post without permission. When leaving, the power supply needs to be cut off.

3. After the work is over.

(1) After the production work is completed, all power must be turned off, and the tool must be placed in the designated position.

(2) Clean around the machine and maintain hygiene.

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Details can be accessed here:https://www.lyhuatianm.com/products-information/paper-tube-machine-operating-procedures.html

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Selection points of harmonic reducer bearings

Harmonic reducer bearing, as the name suggests, is a special bearing for harmonic reducer. The special bearing of the harmonic reducer generally uses the crossed roller bearing. The bearing selection of the harmonic reducer should be based on the different occasions of the equipment, and different bearing models should be selected. Generally speaking, it can be divided into CSF/CSG series and SHF series. There are two types of /SHG series, CSF/CSG series refers to the outer ring split bearing and inner ring integral bearing, SHF /SHG series refers to the outer ring and inner ring are integral bearings.

The bearing of the harmonic reducer has a compact shape, has its own mounting holes, is easy to install, and has good performance such as high rigidity and easy installation, high rotation accuracy and high composite bearing capacity, and can bear axial, radial and overturning moments at the same time. The load in each direction is suitable for different types of harmonic reducers.

Harmonic Reducer Bearing

When selecting the bearing of the harmonic reducer, in addition to the application, it is also necessary to consider the installation method and size of the bearing. At present, the bearing selection of the harmonic reducer can refer to the following models:

HRB type, this one is a bearing with a whole inner ring and a separate outer ring. It is the basic model of the harmonic reducer bearing. The outer ring is divided into two pieces, and the inner ring is an integral structure, which is suitable for occasions that require high rotation accuracy of the inner ring.

HRBH type, this bearing has an integral structure of the inner and outer rings. The installation has no effect on the performance, and the rotation accuracy and torque will be more stable. At the same time, the bearing adopts an ultra-thin design. There are no mounting holes in the outer ring and the inner ring. The support base is fixed.

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Details can be accessed here: https://www.prsbearings.com/a/news/Harmonic-reducer-bearing-selection.html

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How to do the maintenance of crane slewing bearing?

In cranes, tower cranes, truck-mounted cranes and other lifting equipment, the slewing bearing plays a very important role. It can form a connection between the chassis and the upper structure of the machine, allowing the crane to rotate 360 ​​degrees, while bearing the axial, radial and direction and overturning moment. The open design of the crane slewing ring allows the hydraulic system and other control components to pass through the slewing ring, making more efficient use of the limited space in the hoisting equipment.

As an important “joint” of the crane, the slewing bearing of the crane affects the performance of the crane and determines whether the crane can work normally and efficiently. Therefore, it is very necessary to properly maintain the slewing bearing of the crane.

The maintenance of the crane slewing bearingshould do the following:

crane slewing bearing

 

(1) We must ensure that the mounting support of the slewing bearing has sufficient rigidity and the mounting surface is flat. Before the slewing bearing is installed, the bearing should be destressed to reduce the deformation of the slewing bearing. In addition, when the crane slewing bearing is installed, the contact surface between the bearing and the slewing bearing should be kept clean.

(2) The tooth surface of the slewing bearing should be regularly cleaned of debris and greased.

(3) After the first 100 hours and 500 hours of operation of the slewing bearing, the pre-tightening torque of the bolts should be checked respectively. After that, the preload torque should be checked every 1000 hours of operation. This can ensure the reliability of bolt work and avoid insufficient bolt preload.

(4) During the working process of the crane slewing bearing, it is necessary to pay attention to the changes in noise and slewing resistance moment. If there is any fault, it should be eliminated in time.

(5) When tightening the nut, lubricating oil should be applied to the thread of the bolt and the end face of the nut, and the torque wrench should be used symmetrically and evenly in the circumferential direction, and tighten it several times. The preload torque on each bolt should be approximately the same.

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Details can be accessed here: https://www.excavatorbearing.com/a/bearing-knowledge/Maintenance-of-crane-slewing-bearing.html

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What are the commonly used forging equipment?

In forging processing, forging equipment is mainly used for metal forming and metal separation, so it can also be called metal forming machine tool. The forming principle of forging equipment is to exert pressure on the metal, and the large impact force is the main feature of this type of equipment. Therefore, in order to ensure the normal operation of the equipment and the personal safety of operators, various safety protection devices will be installed on the equipment.

There are many types of forging equipment, which can be divided into forming equipment and auxiliary equipment. The forming equipment includes forging hammers, mechanical presses, hydraulic presses, screw presses, and flat forging machines. machine etc. In the current processing industry, hammer forging equipment, hot die forging press, screw press, flat forging machine, hydraulic press, etc. are commonly used forging equipment in forging workshops.

forging equipment

FORGING EQUIPMENT–FORGING HAMMER

Among the forging equipment, the most widely used equipment is the non-forging hammer. When the forging hammer is working, after the high-speed movement generates kinetic energy through the falling of the heavy hammer or the processing external force, the processed blank is forged to plastically deform the product. The forging hammer has the characteristics of simple structure, flexible work, wide application and easy maintenance, and can be used for free forging and die forging.

FORGING EQUIPMENT–HOT FORGING PRESS

Hot die forging press is a very commonly used high-precision forging equipment in modern forging production. It can be used to produce The forgings produced by this processing method have higher precision and can be It uses raw materials to a greater extent, has a high degree of automation, and is easy to operate, which greatly improves the production efficiency of products. It is widely used in automobiles, ships, aviation, mining machinery, petroleum machinery, hardware tools and other manufacturing industries.

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Details can be accessed here:https://www.gold-emperor.com/forging-equipment-category/

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How to use the vibrating screen exciter correctly?

We all know that when some machinery and equipment need to generate excitation force, if the machine itself does not have this function, it needs to add some vibration devices. The vibrating screen needs to use mechanical vibration to screen materials. Therefore, vibration The screen exciter has become one of the important components of the vibrating screen.

When purchasing a vibrating screen exciter, many users generally focus on the quality and performance of the exciter. However, as long as the quality is passed, can the use of the vibrating screen exciter be completely assured? This is not the case. Although the quality of the exciter is the focus of attention, the use of the exciter is correct and reasonable, and it is also an important factor affecting the performance of the vibrating screen. If it is improperly operated for a long time, it is easy to cause the failure of the exciter, thus affecting the normal operation of the vibrating screen. As an old-fashioned vibrating screen exciter manufacturer, Luoyang Haiside Heavy Industry Co., Ltd. shares with you the precautions for the use of vibrating screen exciters, so that more people can learn the correct use of vibrating screen exciters.

The correct use of the vibrating screen exciter is summarized as follows:

1. Before starting the work, check the tightness of all the bolts, and after the initial work for 8 hours, check whether there is looseness and tighten again.

2. Check the oil level in the exciter. If the oil level is too high, the temperature of the exciter will rise or it will be difficult to operate. If the oil level is too low, it will lead to insufficient lubrication and damage to the bearing. Normally, 2/3 of the lubricating cavity should be filled. should.

Vibrating-Screen

3. Ensure a minimum clearance between all moving parts and fixed objects.

4. When the load of the vibrating screen starts, it will cause greater pressure on the bearing of the exciter and reduce the service life. Therefore, it is necessary to check the screen surface of the vibrating screen before opening to ensure that the vibrating screen is started under no load, and then start feeding after the vibrating screen runs smoothly. Before shutting down, the feeding should be stopped first, and the machine should be shut down after the material on the screen surface is drained.

Details can be accessed here:https://www.hsd-industry.com/news/the-use-of-vibrating-screen-exciter/

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How can plant grow racks guide crop growth?

Cucumbers, beans and other vine crops are relatively free crops in the growth process. Because of their climbing characteristics, if they are not controlled and guided, they will climb everywhere on the ground and walls, and grow like this. Due to the contact with the moist soil, the growing area of ​​crops is too large and without support, which will not only lead to the increase of pests and diseases, and will not be able to resist wind and rain, but also make the fruits growing on the ground more easily rotten and deteriorated due to pollution. And fruit crops such as eggplant and tomato will also be unable to bear the weight of the fruit because there is no support, causing the fruit to fall off and damage.

Therefore, in the growth process of vine crops and fruit crops, a very important link is to guide the growth of stems and leaves by building scaffolds, columns and other plant growth frames.
So what are the advantages of using plant grow racks, and why can these advantages guide the growth of crops?

growing racks

The use of plant grow racks mainly has the following 5 advantages:

1. Expand growth space and increase results

Vine crops are mostly light-loving plants. This characteristic makes them naturally like to chase the sun. Their stems and leaves follow the direction of the sun and grow continuously, which causes their stems to grow longer and longer. The longer the stems, the more fruits they have. Therefore, according to the characteristics of such plants, people build scaffolds, columns and other plant growth frames to increase their growth space, guide their growth, and let them bear more. fruit.

2. Improve ventilation and light transmission, and develop well

The stems and leaves of vine crops will be very large. If they are not controlled and guided, they will be entangled on the ground and become a mess, which not only reduces the ventilation performance of the field, but also causes poor light transmission and photosynthesis due to the stems and leaves that block each other. The efficiency declines, which is not conducive to the growth and development of crops.

Therefore, it is possible to make the stems and leaves climb and grow to the heights by means of plant grow racks such as brackets and uprights, reducing mutual entanglement and shading, and ensuring good ventilation and sufficient light, so as to promote better growth of crops.

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Details can be accessed here:https://www.etegreen.com/blog/advantages-of-plant-grow-racks/

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What are the common forging processes?

Forging is the use of forging pressure on metal blank products by forging machines to plastically deform the processed forgings to achieve specific mechanical properties, shapes and sizes. This is an important metal plastic processing method adopted by many forging manufacturers. Many people know about forging, but they don’t know much about the forging process. Today, GOLD EMPEROR FORGING, a forging manufacturer, will share with you some common forging processes.

Classification according to forging temperature:

First of all, the forging process can be classified according to the forging temperature, commonly used are hot forging, warm forging and cold forging.

Classification according to forming principle:

Secondly, we can also divide the forging process into free forging, die forging, ring rolling and special forging according to the forming principle of forgings.

forging process

1. Free forging of forging process

Using simple universal tools, or directly applying external force to the blank between the upper and lower anvils of the forging equipment, the blank is deformed, and the processing method of the forging to obtain the required geometric shape and internal quality is free forging. Forgings produced by the free forging method can be called free forgings. Free forging is mostly used to produce small batches of forgings. We can use forging equipment such as forging hammers and hydraulic presses 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.

2. Die forging of forging process.

Die forging can be divided into open die forging and closed die forging. After the metal blank is compressed and deformed in a forging die cavity with a certain shape, the required forgings can be obtained. Die forging is mostly used to produce important light and large-scale parts.

Die forging can be divided into hot forging, warm forging and cold forging. In the future, warm forging and cold forging will use more die forging processes, which are more difficult to forge than other forging methods, and can better reflect the forging technology level of forging manufacturers.

According to forging materials, die forging can also be divided into ferrous metal die forging using ferrous metals such as carbon steel, non-ferrous metal die forging using non-ferrous metals such as copper and aluminum, and powder product forming with powder metallurgy materials.

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Details can be accessed here: https://www.gold-emperor.com/forging-process-category/

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Disassembly and assembly method of excavator slewing bearing

The excavator slewing bearing is one of the important parts of the excavator. Whether the slewing bearing can be properly disassembled will greatly affect the normal operation of the excavator. So, do you know how to properly disassemble and assemble the excavator slewing bearing?

1. Installation method of excavator slewing bearing

(1) Installation plane

Before installing the excavator slewing bearing, it is necessary to check the mark and certificate to ensure that the model of the slewing bearing used is correct. If there are welding beads, burrs, paint residues, etc. on the surface of the excavator slewing bearing , it should be removed in time. Make sure that the cleaning solvent does not enter the inside of the slewing bearing, and the solvent used cannot damage the sealing material of the slewing bearing. When installing, make sure that the installation surface is dry.

excavator slewing bearing

(2) Mounting the support

The roughness of the mounting surface of the mounting support shall be controlled within the allowable range and shall not exceed the standard value range.

(3) Positioning

The inner and outer raceways of the slewing bearing are equipped with a soft belt, which should be placed on both sides of the main load surface, that is, 90 degrees away from the main load area, and the soft belt is blocked or marked with an S mark.

(4) Check

When the installation is completed, it should be checked (usually with a feeler gauge) whether the slewing bearing matches the installation surface. If the match is not good, it should be filled with suitable materials. After the excavator slewing bearing is installed, the bracket is prohibited from welding.

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Details can be accessed here: https://www.excavatorbearing.com/a/bearing-knowledge/Installation-of-excavator-slewing-bearing.html

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How to use crossed roller bearings correctly?

High precision is the main feature of crossed roller bearings different from ordinary bearings. Therefore, in the process of use, more attention should be paid to avoid affecting the working life of the bearing.

Correct use of crossed roller bearings is an important condition for reducing bearing failures and extending bearing life, so how to use crossed roller bearings correctly?

The correct use of crossed roller bearings is mainly divided into two aspects: correct installation and reasonable lubrication.

1. How to install the crossed roller bearing correctly?

(1) Before installing the crossed roller bearing, make sure that the bearing is clean and free of impurities.

(2) When installing, do not tap the bearing with your hands or other tools. It is recommended to use a special tool to press the bearing straight and evenly.

(3) When the seat ring of the crossed roller bearing is loose with the seat hole, it is recommended not to use the method of pockmarking or padding the surface, and continue to use the bearing. At this time, the seat hole should be repaired, or directly Replace the crossed roller bearings.

(4) When disassembling the crossed roller bearing, use a suitable tool to pull out the bearing, and do not hit the crossed roller bearing with a chisel, hand hammer, etc.

 

crossed roller bearings

 

2. How to lubricate the cross roller bearing reasonably?

When lubricating crossed roller bearings, the commonly used lubricants are lubricating oil and grease. The two lubricants are used in slightly different scenarios. When the peripheral speed of the shaft is less than 4-5m/s, or the parts of the car that cannot be lubricated with lubricating oil, grease will be used for lubrication. The advantage of using grease lubrication is that the sealing structure is simple, the grease is not easy to lose, and it is not affected by the temperature, and the grease can be used for a longer time.

Crossed roller bearings with high speed and high working environment temperature need to be lubricated with lubricating oil. The advantage of using lubricating oil is that the frictional resistance is smaller and the heat can be dissipated in time. The brand and model of the lubricating oil should be selected according to the requirements of the manual, and should be replaced in time according to the maintenance cycle of the machine. Before replacing the new lubricating oil, the old oil should be released, and the When cleaning the mechanism, the amount of lubricating oil used should be in accordance with the specified marking line, or the same as the oil filling port, and no more should be added.

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Details can be accessed here: https://www.prsbearings.com/a/news/use-of-crossed-roller-bearings.html

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