What is the Working Principle of Impact Drill, Electric Drill And Electric Hammer?

China impact drill supplier to share with you:

Electric drill: It is a drilling tool that uses electricity as the power. It is the most used product in electric tools. It can work in a small space. The switch can control the forward and reverse of the chuck. The electric drill only has rotating energy, which means that The drill cannot impact, so it can only drill holes on objects with low density or low hardness, such as wood, plastic, or some metals. It can also be used as a screwdriver at low speeds. Many practical functions have been developed.

The working principle of the electric drill is that the small-capacity motor drives the connecting rod transmission, and the connecting rod drives the gear to increase the power of the drill bit, so that the drill bit scrapes the surface of the object and finally penetrates the object. Easily drill through objects.

The drill chuck is an important part of the electric drill. It can easily hold different specifications of drill bits by means of three clamping jaws. Telescopically extend along the inclined plane to open or clamp the drill bit. Before drilling, clamp the drill bit and clamp the drill bit in the middle of the clamping jaw. This can prevent the drill bit from falling off during the drilling process.

Impact drill: It works by rotating and impacting the drill. Its impact mode and rotation mode can be switched. The impact drill uses the gear to bounce on the inner shaft to generate the impact force, so the impact force is not very large. Holes can be made in wood and bricks, but also in concrete, but the effect is not very good.

The working principle of the impact drill is that when the impact drill is rotating, it is the same as that of the electric drill. The motor drives the gear transmission, and the gear drives the connecting rod, which drives the drill to rotate and cut the hole.

China Hammers

The beating of the gear on the inner shaft drives the compression piston to reciprocate in the impact piston cylinder. The compressed gas pushes the hammer of the impact piston cylinder to hit the tail end of the drill with a higher impact force, so that the drill will impact forward.

Electric hammer: It is an electric tool that can both rotate and impact. Through the reciprocating movement of the piston, the compressed air in the cylinder impacts the tail of the drill to punch holes. The electric hammer does not require too much force during the impact process, and the impact force will be greater than the drill. There are many vibrations, but the vibration is relatively large. It is mainly used for drilling holes in concrete and natural stones. It can also be used for floor and wall removal, but it cannot be used for drilling holes in metal.

The working principle of the electric hammer is that when the driving mechanism drives the drill bit to rotate, there is a reciprocating hammering motion perpendicular to the rotary head. The motor drives the gear or chain. The gear and chain then drive the eccentric shaft. The eccentric shaft is driven by the adapter. The piston reciprocates in the cylinder, and the hammer strikes continuously. The transmission mechanism drives the piston to compress the air in the cylinder. The air pressure in the cylinder changes periodically, which drives the hammer in the cylinder to reciprocate against the top of the drill bit. This is like we take a hammer to go Like nailing.

As people use electric tools as common equipment in production and life, the application range of tools such as electric drills, China hammers, impact drills, etc. is constantly expanding. Electric tools that can improve work efficiency will definitely play an important role in economic development. In recent years, electric tools have also been included in the category of advanced equipment manufacturing. With the development of electronic technology, motor technology, and battery technology, new development is bound to usher.

How To Choose a Good Grease Gun?

Buttering is a task that every robot must do every day. A good and easy to use grease gun is the simplest and extravagant requirement for everyone. After all, there are many types of butter guns on the market and the prices are mixed. I want to pick one out The easy-to-use and affordable grease gun summarizes several details of selecting a grease gun. Through these small details, it is enough to screen out the poor quality grease gun!

China Grease Gun

pressure test:

Test whether the pressure of a china grease gun is strong enough. In the details of the test, you must do your homework. First, you must press slowly when testing the pressure. Observe that the pressure will gradually increase as the lever sinks!

In this process, you must not hit too fast, you can't find the fundamental problem too quickly. If everyone finds that the pressure does not increase significantly as the pressure bar sinks, then the grease gun has an internal leakage problem!

Handle strength:

Many fighters believe that the heavier the lever of the grease gun is, the better, this is a good grease gun, because it is not easy to leak oil, this is actually a misunderstanding.

In addition, you can judge the strength of the grease gun according to the strength of the handle and the strength of the connection. If you can press it slowly, it indicates that there are internal leakage and oil leakage at the plunger port. Life is short.

Oil output speed:

China hand tools manufacturers believes that a good grease gun will basically produce oil smoothly if it is used a few times. If it is a poor quality oil gun, it will not be able to produce oil smoothly if it is used many times. There will be a very clear feeling of frustration in the use, and the use of smooth, and even some grease gun handle connection will have obvious noise.

Flat mouth:

It can be said that the details of every part of a good grease gun are very good, such as a flat mouth. The pressure of a good quality flat mouth thread can withstand the test, and it is easy and smooth to pull out. If it is a low-quality flat mouth, the first can't seal the oil, the second can't hold the oil mouth, there will be leakage on the side of the oil.

to sum up:

Transparent butter guns on the market are very popular. The first benefit is that you can see the remaining amount of butter directly and you can replenish it in time. In addition, the transparent tube and the rubber piston are easy to engage, and it is easy to suck oil without trapping air.

The most important advantage is that the tube body of the high-quality transparent grease gun is made of explosion-proof tube, basically the car pressure is not bad, and the hammer is not bad! Longer life!

How To Buy Power Tools

China power tools manufacturer share with you:

(1) First of all, according to their own needs, the difference is whether it is used at home or professional. The difference between ordinary professional power tools and ordinary household power tools is mainly in power. Professional electric tools have higher power, which are generally used by households. The power of the tool is small, and the input power is also small and compact. The highly integrated power tool is more convenient than the large, single-function product. Therefore, try to choose power tools that are rich in functions, small in size, simple in structure and easy to store. When purchasing power tools, you need to choose a clear country package. Power tools that are not damaged should have normal appearance, plastic parts, and no The development wire and dents are clear. There are no scratches or bumps. The related paint is smooth and beautiful without defects. The surface of the whole machine is free of oil and stains. The handle of the switch is flat. , Parameters, manufacturers, certificates, etc. are equipped with hand-held tools, turn on the power, frequently operate the switch to make the tool start frequently, observe whether the on-off function of the tool switch is reliable, and whether it affects the TV / fluorescent lamp on the site, etc Determine whether the tool is equipped with an anti-jamming suppressor and the electric tool is powered on for 1 minute. Feel the vibration and observe whether the reversing sparks and the air inlet are normal.

(2) Select china power tools with noise within the allowable range.

(3) Select power tools that are easy to repair and obtain accessories.

(4) Pay attention to the power supply voltage used for power tools. Generally, handheld power tools need to provide 22V mains power as an energy source. Do not connect to 380V industrial power, otherwise the machine will be damaged.

Tips for buying power tools

1. If you often drill holes in concrete walls, a two kilogram electric hammer is your best choice. Due to the cylinder structure of the electric hammer, the hammering force is very high, and it has a hammering frequency of 1,000 to 3,000 per minute, which can generate significant force, making it easy for you to drill holes in the concrete wall. Equipped with an adapter rod and a chuck of an ordinary electric drill, it can also complete the function of a hand electric drill to achieve the purpose of multi-use of one machine. It is a speed-adjusting electric hammer + adapter rod + 13 mm electric drill chuck, which costs only a few hundred yuan, and is equipped with several commonly used drill bits, so most of the decoration tasks in your home can be completed by yourself.

2. If drilling in addition to concrete is required, drilling in wood and metal is also considered, and drilling in concrete is less than ten millimeters, then impact drilling can be considered. Impact drilling depends on helical gears, and the impact force is not as good as an electric hammer.

3. If you often tighten or loosen screws or punch holes on wooden or iron plates, you can buy a rechargeable electric screwdriver, which is the most convenient tool in these two aspects. Rechargeable electric screwdrivers plus a set of screwdrivers make it easy to get the job at hand.

4. Everyone knows that hand drills are suitable for drilling holes on wooden or iron plates, but do n’t expect how big it is to drill holes on concrete walls. That way, it is easy to damage the machine. A hand drill is the most economical Even the imported power tools need only a few hundred yuan.

5. Jigsaw, if you have strong hands-on ability, you can make some furniture or modeling yourself, then hole saws you definitely need, install the appropriate saw blade, wood, iron, plastic, stainless steel, etc. You will soon be able to machine your ideal shape. You can choose various types of jigsaws to create your own shapes.

China Power Tools

New Opportunities for The Development of Chinese Hand Tools Industry

In the past few years, Chinese hand tools enterprises have been small in scale, products are not rich enough, quality is not high, lack of brands and other problems, which are typical of "more but not stronger". Therefore, it is the best time for Chinese hand tool enterprises to build high-quality hand tool products and establish a brand of hand tools.

The most common product categories produced by Chinese mainland hand tool manufacturers are fastening tool products, such as basic hand drills, impact socket wrenches and combination wrenches, which have high growth potentia

Hand Tools Industry

At present, the production of hand tools is mainly affected by the price of raw materials such as steel. Hand tools market competition is fierce, mostly for small profit products. Once the price of steel rises sharply, it will directly affect the survival of hand tools manufacturers. At the same time, the product competitiveness of hand tools is determined by the quality of raw materials, that is, the quality of steel, in addition to the reasons of the enterprise itself. Durable hand tools are made of the higher grade alloy steel available on the market.

For now, the main market for Chinese hand tool makers is overseas. Hand tool makers in fujian, jiangsu, shandong and zhejiang, in particular, are ramping up their production capacity to cope fully with the expected increase in export sales, expanding overseas market coverage and achieving better profit margins by producing mid-range and high-end products. Hand tool makers were confident, with more than 50 per cent predicting overseas growth of more than 10 per cent.

In the past, China was mainly used as a production base for hand tools. In recent years, with the rapid growth of domestic economy, China has become the most potential consumer market for hand tools. Insiders believe that the mainland's domestic market is no less than the European single market or the north American market, with at least 400 million people consuming hand tools. Numerous hand tool manufacturers have entered the Chinese market.

Consumers mainly focus on the information source of mobile tools in the sales website, stores, exhibitions, negotiations, sales agents, it is worth mentioning that consumers in the first purchase of the brand awareness is not enough, a large number of people are in the purchase and use of the brand and quality of hand tools. It can be said that the brand building of hand tools is the best development prospect of Chinese hand tools enterprises.

About Grinding Wheel

Hardware manufacturers in china introduce you: Grinding wheels, also known as consolidated abrasives, are bonded with ordinary abrasives into a certain shape (mostly circular, with a through hole in the center) and have a certain strength Solidified abrasives. It is generally composed of abrasives, binders and pores. These three parts are often referred to as the three elements of a consolidated abrasive. According to the different classifications of bonding agents, there are ceramic (bonding agent) grinding wheels, resin (binding agent) grinding wheels, and rubber (binding agent) grinding wheels. Grinding wheel is the largest and most widely used type of abrasive tools. It rotates at high speed during use. It can rough, semi-refined, and semi-finely grind the outer circle, inner circle, flat surface and various profiles of metal or non-metal workpieces. Fine grinding and grooving and cutting. The characteristics of the grinding wheel are mainly determined by factors such as abrasive, particle size, bonding agent, hardness, structure, shape and size.

Grinding Wheel

1 Overview

Grinding wheel is the most important type of abrasive tool in the grinding process. Grinding wheel is a porous body made by adding a binder to the abrasive, compacting, drying and baking. Due to the different abrasives, bonding agents and manufacturing processes, the characteristics of the grinding wheel are very different, so it has an important impact on the grinding process quality, productivity and economy. The characteristics of the grinding wheel are mainly determined by factors such as abrasive, particle size, bonding agent, hardness, structure, shape and size.

2 categories

There are many types of grinding wheels. According to the abrasive used, it can be divided into ordinary abrasives (corundum and silicon carbide, etc.) grinding wheels and natural abrasive superhard abrasives and (diamond and cubic boron nitride, etc.) grinding wheels;

According to the shape, it can be divided into flat grinding wheel, beveled grinding wheel, cylindrical grinding wheel, cup-shaped grinding wheel, dish-shaped grinding wheel, etc. According to the bonding agent, it can be divided into ceramic grinding wheel, resin grinding wheel, rubber grinding wheel, metal grinding wheel and so on. The characteristic parameters of the grinding wheel mainly include abrasive, viscosity, hardness, bonding agent, shape, size and so on.

Because the grinding wheel usually works at high speed, a rotation test (to ensure that the grinding wheel does not break at the highest working speed) and a static balance test (to prevent machine vibration during work) should be performed before use. After a period of work, the wheel should be trimmed to restore the grinding performance and correct geometry.

3 attributes

Grinding wheels are circular solidified abrasive tools with through holes in the center made of abrasives and bonding agents.

The characteristics of the grinding wheel are determined by factors such as abrasive, particle size, hardness, bonding agent, shape and size.

4 choice of abrasive

Abrasive is the main raw material for manufacturing grinding wheels, and it is responsible for cutting work. Therefore, the abrasive must be sharp and possess high hardness, good heat resistance and certain toughness.

5 hardness and its selection

The hardness of the grinding wheel refers to how easily the abrasive particles on the surface of the grinding wheel fall off under the action of the grinding force. The hardness of the grinding wheel is soft, which means that the abrasive particles of the grinding wheel are easy to fall off, and the hardness of the grinding wheel is hard, which means that the abrasive particles are more difficult to fall off. The hardness of the grinding wheel and the hardness of the abrasive are two different concepts. The same abrasive can be made into grinding wheels with different hardness, which mainly depends on the properties and quantity of the bonding agent and the manufacturing process of the grinding wheel. The significant difference between grinding and cutting is that the grinding wheel has "self-sharpness". When you choose the hardness of the grinding wheel, you are actually choosing the self-sharpness of the grinding wheel. I hope that the sharp abrasive particles do not fall off too early, and do not blunt and not fall off.

The general principle for selecting the hardness of the grinding wheel is: When processing soft metals, in order to prevent the abrasive from falling off prematurely, a hard grinding wheel is selected. When processing hard metals, in order to make the dull abrasive particles fall off in time, so that new abrasive particles with sharp edges and corners (ie, self-sharpening) are exposed, a soft grinding wheel is selected. The former is because when grinding soft materials, the abrasive wear of the grinding wheel is very slow and does not need to be detached too early; the latter is because when grinding hard materials, the abrasive wear of the grinding wheel is faster and requires faster Update.

When fine grinding, in order to ensure the grinding accuracy and roughness, a slightly harder grinding wheel should be used. The workpiece material has poor thermal conductivity and is prone to burns and cracks (such as grinding cemented carbide), so the selected grinding wheel should be softer.

We are grinding wheel exporters. If you have any questions about grinding wheels, we are happy to answer them.