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Before taking over, we will introduce the features and technical parameters of the KP series of KP series of hydraulic pullers of Prandtl, and the features and technical parameters of the series of hydraulic pullers of electric trolleys. We will introduce the features and technical parameters of the KY series of hydraulic automatic centering pullers today. Compared with other hydraulic pullers, the KM series of electric trolley hydraulic pullers have corresponding applications. Hydraulic automatic centering puller KY series features 1. Three-jaw linkage, automatic centering, convenient and quick to use; 2. The pulling claws are forged from high-strength alloy steel, which is sturdy and durable; 3. The complete hydraulic puller kit includes claw, hand pump, oil cylinder, high pressure hose; 4. The tonnage of this series is from 10 tons to 60 tons.

The working principle of the bearing heater is to use the metal to generate eddy current in the alternating magnetic field to make itself heat, which is usually used in metal heat treatment and so on. The principle is that when a thicker metal is in an alternating magnetic field, an electric current is generated due to the phenomenon of electromagnetic induction. After the thicker metal generates current, the current will form a spiral flow path inside the metal, so that the heat generated by the current flow is absorbed by the metal itself, which will cause the metal to heat up quickly. Installation and debugging 1. Short-circuit heating: The host is a transformer with a special structure, and the movable yoke is used to directly pass through the bearing or other heated workpieces. When working, turn on the power of the host, and the workpiece (equivalent to the secondary winding) induces a short-circuit current and is heated. 2. Place the yoke on the end face of the main iron core. 3. Check whether the wiring between the plug and the socket is consistent, the grounding should be good, and then insert the plug into the power socket with the control switch. 4. Turn the function selection switch to the manual position, turn on the power, and the red indicator light is on. 5. Press the start button, the host is powered on, then the green indicator light will turn on and the red light will turn off; press the stop button, the red light will turn on and the green light will turn off. At this point, the debugging is over and it can be put into use. operating procedure The first step is to place the yoke on the end face of the main unit. The second step is to insert the plug into the power socket with the control switch. The third part, check whether the ground wire is good, and test it with a test pen after powering on. The fourth step is to turn on the power according to the requirements. At this time, the host automatically detects the probe and the ambient temperature, and displays the ambient temperature at the same time. The fifth step, check that the yoke should have no voltage to the ground. The sixth step, select the yoke sleeve according to different specifications of bearings or other workpieces, and place the yoke on the top surface of the main machine, which should be flat. The seventh part, press the button to select the temperature or time control, if you need to adjust the temperature or time, please press the up or down button to select the appropriate parameter. The eighth step, press the start button. The host starts to heat the workpiece. When the set time is reached, the host automatically stops heating and automatically demagnetizes the workpiece. During temperature control, when the set temperature is reached, the workpiece is in a constant temperature state, and when it needs to be installed, just press the stop button. . The ninth step, when the bearing is heated to the required temperature, it will automatically turn off the power or press the stop switch. The tenth step, after the heating is stopped, move the yoke to the left or right, remove the bearing and put the yoke back on the top of the host. Eleventh, if the machine is reused to continuously heat the bearing, it is only necessary to put the processed bearing into the yoke and press the start button.

The choice of hydraulic wrench is determined by bolt size, torque requirements, and space range. bolt size What kind of bolts are there in general, metric or inch? For example, M36, M42, and M48 refer to metric bolts. The hexagon opposite side of the M36 nut is 55, the M42 is 65, and the M48 is 75. One type of hydraulic wrench can be selected. If the bolt specification span is too large, and the torque span is large, it is necessary to use various types of wrenches to pre-tighten these bolts. Torque Requirements The specification of the bolt and the strength grade of the bolt are the most critical parameters for the selection of hydraulic torque wrenches. Different bolts have different torques. The same bolt has different strength levels and different torques. The same bolt strength levels have different torques under different working conditions. For example, M36 bolts have a strength grade of 8.8 and a torque of 1764Nm; strength grades of 10.9. grades and torque of 2453Nm; strength grades of 12.9. Spatial position of bolts and nuts If there is no space limitation, any type of wrench can be used; the driven hydraulic wrench is more general; if the exposed thread is long after the bolt is tightened or the space above the bolt is limited, it is best to use a hollow hydraulic wrench; if the distance between the nuts is narrow , can choose hollow hydraulic wrench. Other considerations 1) One type of hydraulic wrench can only solve several similar bolts, generally with 1-10 sockets; 2) Conditional manufacturers can use one electric pump with two wrench heads, use diagonally, which can improve efficiency and more accurate torque; 3) The hydraulic wrench must be used by a special person, kept by a special person, and maintained regularly, such as oil change, cleaning, etc.; 4) The bolt torque standard should be subject to the national standard, which is in line with China's national conditions.

Hydraulic torque wrench is composed of body, electric hydraulic pump, double high pressure oil pipe and high strength sleeve. After the hydraulic pump starts to generate pressure through the motor, the internal hydraulic oil is transmitted to the hydraulic torque wrench through the oil pipe medium, and then pushes the piston rod of the hydraulic torque wrench. The piston rod drives the ratchet at the front of the wrench so that the ratchet can drive the drive shaft to complete the bolt. The preload loosening work. Hydraulic torque wrench body The body of the hydraulic torque wrench is mainly composed of three parts, the body (also called the shell), the oil cylinder and the transmission parts. The output force of the oil cylinder, the piston rod of the oil cylinder and the transmission part form a motion pair, the distance from the center of the oil cylinder to the center of the transmission part is the hydraulic wrench amplifying force arm, and the oil cylinder output multiplied by the force arm is the theoretical output torque of the hydraulic wrench. power unit The hydraulic wrench pump is the power unit of the hydraulic wrench. The hydraulic wrench pump is a high-pressure pump, and the maximum working pressure is generally 70MPa. The common ones are electric hydraulic pump and pneumatic hydraulic pump. Hydraulic wrench pump is composed of motor (electric motor or air motor), pump, pipeline, electrical control, etc. The common pumps are secondary pump and tertiary pump, and the general secondary pump is low pressure gear pump and high pressure plunger pump. The gear pump provides hydraulic oil under pressure for the plunger pump, and the exchange pressure between the gear pump and the plunger pump is 7-10MPa. The structure of the three-stage pump is various. The typical structure is a plunger pump, with 4 large-diameter plungers for low pressure, 2 small-diameter plungers for medium pressure, and 2 small-diameter plungers for high pressure. There are also three-stage pumps that use the first-stage pump as a gear pump, and the second-stage and third-stage pumps as plunger pumps; When the working piston of the hydraulic wrench moves, it is generally in a medium pressure state of 10-32MPa, and the medium-pressure flow is 2.2 times the flow of the high-pressure (32-70MPa) flow. Based on the three-stage pressure flow curve, the speed of the three-stage flow pump is the second-stage flow rate. The flow pump is nearly 2 times. It can be seen that the speed of the tertiary pump is much faster than that of the secondary pump. Electric hydraulic wrench pump motors are divided into brushless motors and carbon brush motors. Brushless motors are generally induction motors and need to be equipped with capacitors. In order to start the pump under pressure, it is necessary to install a starting capacitor and a running capacitor. The brushed motor is generally a series motor with high speed, which can provide a large flow for the pump, but the noise and vibration are large. The brushless motor usually has a service life of tens of thousands of hours, but it is very easy to cause the motor to overheat. According to different working conditions, it is not a very effective solution to choose. The continuous working life of the carbon brush motor is 1-10 Years, and they are usually equipped with coolers, so carbon brush motors are more suitable for long-term continuous operation of hydraulic wrench-specific pumps, and these hydraulic pumps are the mainstream configuration. synchronization system The main purpose of the hydraulic wrench synchronization system is to avoid the unilateral compression mode on the flange surface, which will cause the gasket on the flange surface to fail due to excessive extrusion, resulting in leakage. Synchronous system is used when two or four hydraulic wrenches are connected to one pump at the same time. According to the hydraulic principle, multiple hydraulic wrenches work at the same time and output the set torque at the same time, the flange can be closed in parallel, and the torque accuracy can reach 3%. The synchronous system can lock the bolts at one time, while the single system needs to be loaded multiple times and locked in steps. It can be seen that the efficiency of the synchronous system is much greater than that of the single system.

Consumers face a variety of choices when purchasing a PLC synchronous jacking system, because now there are many manufacturers of PLC synchronous jacking system, and the products of PLC synchronous jacking system provided are also varied, and different PLC synchronous jacking systems are available. Not only are the functions and usage different, but the price difference is also very large. The price difference of many PLC synchronous jacking systems is very huge. Faced with this situation, it is difficult for buyers to make purchases, because from the perspective of producers, of course, the lower the procurement cost, the better, but for the PLC synchronous jacking system, is the cheaper the better? ? When purchasing a PLC synchronous jacking system, in addition to the price, we also need to pay attention to many aspects. If we blindly consider the price of the PLC synchronous jacking system, other influencing factors will inevitably be ignored. We bring a lot of trouble. So, let's take a look at what factors need to be paid attention to when purchasing a PLC synchronous jacking system in addition to the price factor. 1. Pay attention to the overall strength of PLC synchronous jacking system manufacturers. The production requirements of the PLC synchronous jacking system are relatively high, so it is difficult for some small enterprises to produce the PLC synchronous jacking system that meets the requirements. Therefore, when choosing the manufacturer of the PLC synchronous jacking system, we can try to choose some large ones. PLC synchronous jacking system manufacturers purchase, so as to maximize the guarantee that the PLC synchronous jacking system can be used normally. 2. Pay attention to whether the sales system of the PLC synchronous jacking system is perfect Many PLC synchronous jacking system manufacturers sell the PLC synchronous jacking system and no longer care. This is definitely not possible. Only the PLC synchronous jacking system manufacturers who have perfected the sales system and can achieve long-term follow-up visits will be able to To ensure that problems in the use of the PLC synchronous jacking system in the future can be quickly resolved. Therefore, when purchasing a PLC synchronous jacking system, you should not only look at the price, but should consider various aspects. Only in this way can you choose a high-quality one, so as to achieve a better use effect.

Hydraulic torque wrench is an indispensable and important tool in modern life for the installation and removal of some special bolts. Although its internal structure is relatively simple, there are many points to pay attention to when operating. to understand. 1. Before using the hydraulic torque wrench, you must pass complete training and understand its structure accurately, and then you can start work. The overall structure is compact, and in most cases, one person can operate it independently. 2. Before working, you must first confirm your work content, see if you need to install bolts or remove them, and adjust the direction of the drive shaft at any time to ensure safe and effective operation. 3. Under normal circumstances, each type of torque wrench can only be used for similar bolts, about a dozen or so. Be optimistic about the type of work to be carried out. Large manufacturers or those with complete professional equipment will have two spares. The head of the board is used diagonally, which will make the torque more accurate. 4. It is best for each worker to only use their own hydraulic torque wrench. Do not use multiple people together, because everyone has different operating methods or strengths. They should carry out post-maintenance maintenance by themselves. After the work is completed, remember to Clean it in time, check the internal condition in time to see if it is short of oil, etc. After each use, put it back in its fixed position, do not throw it on the ground at will, and develop good working habits. The hydraulic torque wrench is actually very simple to operate, because the use standards of different industries are different, and there will be other precautions. You can summarize it at any time in your work, which can ensure the quality of the product and improve its service life. It is hoped that hydraulic torque wrenches can be recognized by more fields, give full play to their advantages, and make greater contributions to the rapid development of society.

In our daily life, we often encounter some situations where we need to lift heavy objects, especially for the repair industry. If we only rely on manpower to lift heavy objects, it cannot be completed, so we need to use some tool. The electric hydraulic jack is also a commonly used auxiliary tool. So, what are the advantages of the electric hydraulic jack? Let's take a brief look at it. 1. Lighter weight The weight of the electro-hydraulic jack is relatively light, and it is very convenient to carry and use, even girls can drag it at will. Moreover, the structure of this jack is also very compact, and the inertia is relatively small. Compared with other jacks, it is very suitable for daily use. 2. Stepless speed regulation The electro-hydraulic jack can realize the function of stepless speed regulation in a wide range, and it is precisely because of this function that the convenience of operation is improved. If the variable pump or variable motor is used, the speed regulation can be carried out within a large operating range. 3. Automatic operation The electro-hydraulic jack can realize automatic operation, and the jack can automatically lift the heavy object by pressing the operation switch, and no manual force is required. Corresponding to the electro-hydraulic jack is the manual hydraulic jack, which needs to lift heavy objects manually. 4. Stable speed The speed of the electro-hydraulic jack is very stable, so there is no need to worry about the tilt of the heavy object when lifting the heavy object, and it can also reduce the occurrence of safety accidents. After reading the above content, I believe that everyone has already understood the advantages of hydraulic jacks. Since there are many types of jacks on the market, the advantages and characteristics of different jacks are also different. Before choosing, you can also choose according to actual needs. To make a selection, you also need to understand the advantages and characteristics of the jack.

Now many companies will be equipped with bolt tensioners. After all, such tools are very convenient to use and work efficiently. So everyone will ask, is the price expensive? In fact, it is practical The tools are not expensive for the professional machinery industry, so let's take a look at what factors are related to the price of the bolt tensioner. 1. Brand The price of bolt tensioners is affected by the brand. The prices of bolt tensioners of different brands are different. The price of big brands will be a little more expensive. After all, the quality of big brands is guaranteed, and the prices of small brands may be cheaper. However, there may be some problems in the process of use, and we need to deal with them in time. The price of a general bolt tensioner is about 12,000 yuan, and the price is quite appropriate. 2. Model The models of bolt tensioners are also different. Different models have different prices. They have more functions. If the tensile strength is high, the price will be a little more expensive. The same brand will have such problems, so we have to work according to ourselves. You need to choose the right bolt tensioner for you. Generally, the price of different models will vary by about 2,000 yuan. You can refer to the actual price. 3. After sales After-sales bolt tensioners are more expensive, but they are much better to use. Once there is a problem, you can go to the after-sales service directly. After all, after-sales service also requires a certain cost, so the price of the bolt tensioner will also be slightly more expensive. To be honest, it is not recommended for everyone to buy and use without after-sales, so as not to cause problems and troubles. The above is an introduction to the price of bolt tensioners. In fact, it is easy to understand that different brands have different prices, different models have different prices, and different service quality. The price is different, but as long as there are three currencies, we can choose the most cost-effective bolts. stretcher. I hope the above content can help you, and I hope you can buy a bolt tensioner suitable for your own use.

Nowadays, many industries are inseparable from hydraulic torque wrenches. Because of their wide application, such products on the market are mixed. It is not too much to say that many businesses only see profits and do not pay too much attention. The quality of the product has seriously affected the law of market sales, causing great psychological distress and economic losses to many customers who need to buy. Here, let's learn together how to buy a reliable, practical and safe hydraulic torque wrench. Hope it can help those in need. First of all, when you are preparing to buy a hydraulic torque wrench in the early stage, you can first understand the brand of the product, choose a reliable manufacturer with relatively good sales volume and quality reputation, through which you can see the efforts of the brand, and then Find the responsible staff, ask the model and usage of the product to be purchased, and see if on-site training, selection services, etc. are available. Generally, smaller companies should not be able to do these problems, because this requires raise a certain cost. Secondly, to determine the three guarantees of product quality, look at the free maintenance time, there are many imported hydraulic torque wrench accessories with high cost, when there is a machine failure, can we provide imported original accessories? How long does it take? If there is a product failure problem, can a clear reply be given within 2 hours or less, and a series of later product guarantee issues. According to the relevant manufacturers, some brands can do a free safety inspection once a year, completely without any worries after purchase. In life, no matter what kind of supplies we buy, there may be some small problems. As long as we get a reasonable and effective solution, it is good. I hope that friends who need to buy hydraulic torque wrenches can choose the ones that are suitable for them and cost-effective. Superb product, gets the job done.

There are countless kinds of tools in daily life, many of which are not familiar to the public. For some unfamiliar industries, there are special operating tools. Hydraulic torque wrenches are a kind of professional tools. Here is a brief introduction for everyone. . What is a hydraulic torque wrench In many industrial fields, hydraulic torque wrenches will appear. This tool is one of the hydraulic tools, which can save a lot of labor in work and has been fully recognized and favored. Its components include a hydraulic electric pump, a high-strength sleeve, a body, and an oil pipe that requires high pressure. The structure is very simple, and it is generally used in petrochemical, thermal power, and mining industries. The frequency is relatively high. Uses of hydraulic torque wrenches 1. When the pipeline is overhead or the bolts are removed, if the pressure cannot be exerted manually, it is necessary to use a hydraulic torque wrench, so that part of the work can be easily completed. 2. Some equipment has unpredictable failures, which also requires this equipment to be disassembled and repaired in detail. In most cases, there are more problems caused by bolts. At the same time, when new equipment is installed, there are also many procedures. The steps need to be assisted by a hydraulic torque wrench, and the combination can be completed quickly, safely and effectively. 3. Some working environments are quite special. Because of the narrow space or other reasons, there is no way to use manpower to work. At this time, the importance of hydraulic torque wrenches is even more reflected. It has a great tolerance for the working environment, whether it is wet or wet. In more remote locations, it will not affect its operation at any time. For some industries such as machinery manufacturing that have strict requirements on pulling force, its obvious advantages will be more reflected, without any two-point resistance. In short, there are more and more models and specifications of hydraulic torque wrenches, and they play their own unique roles in different fields. Then, if there is demand, they can be purchased.