Weak current College】 【automatic sliding door mechanical structure.

<br> <br> <br> From the mechanical structure, the automatic sliding door of basic components are the Rails, the pulley and belt drive. Because of these three parts and the automatic valve is directly related to the operation is automatic doors under .conditions of normal use of vulnerable parts, its structural design, materials, Machining accuracy, installation and adjustment precision determines its maintenance requirements and service life. Automatic sliding door of the life of the main electrical components and improper use and the occasional accident later on. .. <br> <br> (1) automatic sliding door Rails and pulley structure <br> <br> For a long time, automatic sliding door Rails design completely different from the non-automatic sliding door ramp design. The latter usually has two .horizontal parallel Rails, two (or four) pulley by middle connector and suspension of the movement of the door to move the focus of the door happens in two rails support, forming stable "as" a stable structure to achieve a good stability and muted effect .. However, automatic sliding door rail due to the balanced and door frame fixed, door hanging and tuning, installation of electrical components and exterior cover installation, so the easiest way is the rails are designed as single-side road, the doors on one side .by the pulley ramp side hanging on to form the side hanger. The advantages of this design is to install and adjust door convenient, the service is easy. However, this design has many fatal weakness. Firstly because it is the lateral suspension structure, on .the door-up support in a line, the installation of the door weight due to the precision of the effect of the errors and the wind makes the door not only form. static side swing-out also generate dynamic. To this end, this moving .door body lower guide blocks, commonly referred to as "anti-sway blocks, in respect of the use of a bearing, bearing diameter is less than the lower portion of the door, the door of the channel in two directions swing conditions still can run .. The run-out of the use of vibration in effect on the noise performance, its consequences is bound to lead to the pulley and the rail wear and tear. Second, this side suspension structure that guides and pulley in the fully open State, so .surely easy to accumulate dust, dust that Rails and have serious wear between the pulley. So use this automatic valve must pay attention to the care and maintenance. Third, the wheel and the rail top clearance easily slip door, the use of security could not .be guaranteed. So choose this automatic valve must pay attention to the automatic doors of resistance to wind load strength, fourth, this is not a stable operation of the drive load changing, on the life of the electrical components of great impact. <br> .This structural design of automatic sliding door quality depends on the rail aluminum materials, accuracy, strength, pulley material and machining precision, as well as door hanging pieces of design and accuracy can effectively reduce installation error. This may explain why Europe in particular Germany's product .comparison of similar automatic doors. Because there's basic industries, in particular, the average level of aluminium machining. <br> This structure of automatic sliding door installation and debugging of the key is to improve the precision, the guide of flatness and level degrees, .the door of two hanging points by straight lines and Rails of parallelism and verticality, minimize the static lateral swing of the door. Use the automatic valve, particularly early, regular adjustment of the door, to run the resulting error corrected. In addition, it .is necessary to strictly limit the weight of the door, not to exceed the rated load of automatic doors. Usually three months up to one year to conduct a full automatic door and adjustment of the cleaning. <br> In order to resolve the problem, .run-out of European luxury automatic sliding door Rails uses vertical dual rail design. This structure will not only effectively reduce dynamic lateral swing of the problems, but also to a certain extent, solves the problem of safety of the door. More importantly, this .kind of structure significantly reduces wear of the pulley. This point will be discussed in detail in the pulley parts. This vertical double Rails under the door of force on section curves for strengthening design allows the door to reach single door weight 200 kg. <br .> The latest Automatic sliding door track use horizontal dual rail design focus is in the door. horizontal double track between the two support, hoisted the formation. Guide on the opening facing down, and with double-side sealing brushes, formed sealed Rails. avoid .dust on the wear of the rail and the wheel. The structure design is the key to how to resolve the guides installation and transmission and electrical components, fixed the problem. Horizontal double guideway structure in effect on the biggest advantage is muted, for it to .completely solve the problem of the run-out in order to achieve the maximum in the operation of dynamic stability. Achieve a level of maintenance-free. <br> 2) rail and the wheel of dynamic wear <br> Pulley of dynamic wear refers .not only to make the Guide pulley velocity conditions of wear, and more importantly means automatic sliding door short distances to and from the accelerated motion of wear in the wheel. In General, the pulley in uniform motion, wear minimal friction coefficient, because scrolling than .sliding friction coefficient. But automatic sliding door operating characteristics are, in a short time, accelerate from rest to 0.4-0.7M per second, and then slow down until the door stop in final location. Because the door is fixed in the running of door .on drive motor with gear-driven belt, the situation is very similar to the rapid-start and auto-brakes, front or rear pulley will have significant downward pressure, thus increasing the friction. If there is dust on the rails and wheel wear and .tear, the better. In addition, because of automatic sliding door is fixed, so wear parts of the pulley is relatively fixed, long-term non the replaced pulleys will wear a trigonometric arc. The door in the run up and down beat in formation ., have a great noise. If this continues, aluminum Rails will become wavy, switch speed reduction, electrical components load increases until the door completely scrapped. Common automatic sliding door if installed and maintained properly, this end-of-process may have finished in .a year. Aluminium guide rail of the lower precision and strength. Coupled with the use of high frequency-of-life process. will make significantly accelerated. <br> The solution must be found to complete the system to avoid this problem. First of .all need to improve the quality of aluminum, which guarantee the strength of the rail wear and straightness.: and then to select good self-lubricating material, because of the pulley guide up and cannot be combined with lubricants lubrication will beQuick accumulation of dust. .Luxury Automatic sliding door pulley adopts special nylon pulleys, high strength, wear resistance, good self-lubricating properties also have a certain effect. <br> However, through a combination of structural design pulleys from the perspective of the dynamic process of fundamental solution is .the key to the problem. The most simple pulley combination is single pulley structure, ie a pulley to connect a door hanging pieces, a pulley by two doors to fly and drive, the most original of course is the most economical design, cannot address the .pulleys and rail wear problems; consists of two pulley connection a door hanging pieces, make-a door from four roller to hanging and driven to scattered friction force, improves the stability of the door body, it can be said that increased the automatic doors of .double life, but most are just solved the problem. In vertical hanging vertical dual rail design. Each door hanging pieces have two pulleys hanging up support rail, otherwise two pulleys and down Rails in contact, make-a door from four roller to fly and .drive and four wheel to stabilize the door to further diversify the friction, and avoid similar car in the process of starting and braking pressure before and after the round, in two horizontal and vertical direction of the door swing is reduced and vibration, this structure compared .with side suspension double pulley to the structure and increased almost twice the service life, but also significantly reduces operation noise. <br> In hanging horizontal double guideway structure design, every door hanging pieces there are two groups of two pulley suspended in two up support .rail, make a door by eight pulley to fly and drive further distributes the friction, this design allows to decrease the pulley diameter which reduces the crane volume possible. This is important because you can provide for a different architecture styles different narrow automatic sliding doors. .<br> (3) of the toothed belt <br> In order to improve the efficiency of mechanical transmission, automatic sliding door of transmission using toothed belts. Low-grade automatic sliding door drive belt of the tooth form are at right angles, so .the height is limited with teeth, when after the belt tension and gantry crane acceleration at run time, the belt tooth pitch will change, and the belt wear. Low-grade automatic sliding door of wearing the belt is required to periodically replace: otherwise, .not only increases the power consumption and will cause the belt breaking. European luxury automatic sliding door belt directly using auto radiator fan drive belt. Extremely durable, are tooth-shaped cross-section curve design, increased the height of the teeth, improves the belt .and gear of the anastomosis, thereby increasing the mechanical efficiency. The bottom line with nylon belt, reduces tooth pitch distortion, improves the service life. <br> The latest drive belt is enhanced by an array of wire, nylon strap and belt attachment of .tooth surface layer of nylon, it curves shaped tooth-surface not only in line with strict transmission gears, and reduces the possibility of slipping. Nylon belt internal strengthening wire almost avoids tooth pitch distortion, and also avoids the possibility of rupture, the transmission belt .damage parts. become an <br> 2. automatic sliding door of electrical components <br> (1) transformer <br> Transformers can be automatic sliding door in the simplest of electrical components. But upscale automatic doors in the transformer output with a fuse .. In motor overload protection to the controller, and improves the security of the system. <br> (2) driving motor and overtemperature protection <br> Luxury Automatic sliding door of driven motor brushless adjustable speed motor. Power, adjustable in height. In .order to ensure the accuracy of the switching speed of the door, drive motor with speed encoder. Motor overheat protection device is to extend the service life of critical Portal crane. <br> (3) lock <br> Lock feature is the automatic door .for gated and connect to the access control system. Automatic sliding door locks, there are two types: normal automatic sliding door with electromagnetic lock, lock the toothed belt for lock features: heavy duty automatic sliding door with electromechanical lock, lock the door hanging directly ., the key to a lock, when the door is locked. To give a signal to enable the controller the door will not be in the door is locked, then start to avoid damage to the door. In addition to implement and access control system, .the controller must be able to unlock the door movement and action, to ensure correct operation. High retaining automatic doors can actually view in the door signal output 1/1O seconds before you output the lock signal, this feature for automatic door is particularly important, .if not reach this level also lock, it is easy to cause the failure. Therefore, General requirements for the low quality of automatic door lock, with a special circuit module. <br> (4) controllers <br> The controller is the automatic .door of heart, door controller development and modern industrial automation and IC developments, experience by simulation like circuit to microprocessor development process. Digital program control enables modern automatic sliding door in the control and use of various aspects of producing a qualitative leap. <br> .Following the discussions on the controller is based on various features of the IC controller. Control system of the underlying functionality is its learning program. Because different specifications of bodies, different opening width and different systems running the automatic door is used, so high-end .automatic valve control system design is in the normal use of the learning procedure must be performed to detect the status of the entire system, storage system and the various parameters to determine the operating data. Long-term use, overhaul and re-election, and .other conditions can cause changes in the system parameters, so high-end automatic door after each time you power on automatically perform learning program. <br> System status parameter determines, the controller must be able to adjust the automatic doors of various running, such .as door closing speed, speed, keeping open time, closing force. Luxury Automatic sliding door of adjustable features more than you can reach 30. Special State control have the following <br> ① emergency <br> This involves not designed for emergency situations of .automatic doors. As fire doors, emergency escape door, you can open the door, and auto-refers to a State of emergency (outage status) of the public area of automatic doors, fire protection requirements, in General be able to keep the power .on, or be able to use hands and easily opened. The personnel in an emergency situation can seamlessly runFrom the scene. Luxury automatic door has a switch to set the power off when the door or the door of a power outage. <br> ② .access control system and the State of emergency <br> Automatic door equipped with mechanical lock has many drawbacks. First, the lower the degree of automation, the inconvenience to the consumer, in a large public, can realize centralized control. The most serious is .if due to mishandling or other reasons make the door before the lock is open, door in induction signal after the driver door, will form the overload. Serious possible burnt motor. <br> Access control system is made to lock the automated treatment programmes. .Access control system is non-public area prevent unauthorized opening, improve security. However, in order to meet fire protection requirements. You must be in a State of emergency, you can open the door. In exceptional circumstances, for example: office hours when .you do not want to lock the door of entry, and the unexpected automatic doors at work and should have the power to open the door of the State of emergency; thus, the automatic valve should achieve such level: at the end of the door, .if you lose power, the door opens: once the lock. When the door is to keep the lock status. This makes it possible to prevent the unauthorized, trying to use power to open the door: therefore, lock feature if you are not in .programming be reasonable arrangements for the chance to open the door, this is a non-public areas are not allowed. Therefore, the non-public area of automatic doors should have the fire emergency personnel to control the door key switch. This is the automatic .door security sexual function and emergency features of compromise. <br> ③ Automatic reverse function and occasional State <br> Upscale automatic sliding door (including all electric automatic door) controller, are equipped with automatic reverse function programs: whether open or closed, when .the door movement direction encountering obstructions or people, the door of the automatic movement in the opposite direction. This is a very important protective function, to prevent collisions of a person or thing at the same time, protect the automatic door machine from overload and burned .. Then, the door in the back is automatically perform learning program, redetect and record system parameters, it looks like in check there is no obstacle is removed. But in the implementation of the learning program, you cannot have any signal interference: otherwise, .microprocessors will continue to implement learning programs. If long failed to restore normal, they will fail or malfunction. <br> At the time of the adoption of a limited number of personnel, automatic reverse function can be used as a security feature to prevent collisions .and clip, but in the big common area personnel flow. Security features should be special consideration. <br> ④ mutual linkage function <br> In the external environment requires a higher range (such as seal shop) BiLevel is usually installed at the entrance .of automatic sliding doors. In order to prevent two door open at the same time, it will propose mutual chain of function calls that only when one door closes, another door to open. Used to implement this functionality. Need to design a special connection circuit .. IC controller typically has designed the program, and have a spare terminals. The latest IC controller can two automatic sliding door terminals for the connection between interconnect period, select or cancel this feature. This feature can also be used for automatic doors and windscreen. .<br> IC controller has a system status detection. The results of past State detection by four display lights to shine on the order of the length of the combination of the encoding to display, you can display a maximum of 15 kinds of system failures. .The most recent development is a digital display, you can display the system fault up to more than 40 kinds of, enables automatic door system for comprehensive monitoring, ensuring timely and easily exclude barrier. Prevent crane "drenched", thus lengthens the service life. .Analog circuit function to set the current bridge, the terminal block chance of multiple wiring. Therefore require automatic door installation and commissioning staff must have a very high light current knowledge and experience, but also must receive special training. Digital control of IC controller programmed various .additional features and a dedicated reservation terminals, reducing the possibility of wiring errors. <br> (5) program controller <br> Program the controller is the user as needed for the automatic valve to select the running state. Automatic sliding door of running a .full automatic State: that is, when the people close to the door, the door is open, the person to leave the door to close after; kept open or normally open state; the door status. Luxury automatic door there is only one way out .is to get out into the State, time-limited public places is ideal. Winter half-open State on the door of the large building is very practical, in winter door opening width only open full-half to reach the aim of reducing the air .intake. <br> The simplest program controller is three dual-control switch, auto / normal / power down. Switching program controller up to control the State, ie 5 automatically, normally open, locked the door, one-way and narrow door status .. A more complex program control key distribution system monitoring display light, through a set of lines will detect the results displayed. <br> International program control key towards the direction of functional regulation. Initially, the program control keys on the door of the simple .parameters such as speed adjustment button, but if this development, program control keys will increasingly high complexity, lines, and complete solution is to abandon the switching process controller, using the bus control, make the program control key to realization of the input instruction and .show the output of the function. The most advanced program controller can implement all control, regulating and display functions. <br> Since the program controller has reached a very high maneuverability, prevents independent officers of non-authorized actions, lock program controllers become necessary .. The knob of the switching process controller adopts cylinder key instead of the knobs, locks. The most advanced CNC-program controller through contact signal blocking program control key operating functions, without affecting the status display, contact signal can contact lock or button. < .br> 3. automatic sliding door with door seal <br> Automatic sliding door sealing problem solving complex, sealing and insulation effect is good there is a box for insulating glass door leaf. At present the best have box insulating glass door leaf seal of system .solutions. First, minimize the top edge of the door leaf and the gap between the rail: secondly. fixed fan edge and the outer edge of the active fans are addedWith aluminum, achieve pressure type contacts. Fixed fan edge of aluminum in addition to installing .the seal, you can install security gratings: third, dual fan activities contact side of the door, designed for inserted sealing: fourth, activities at the bottom of the set sealed top fan. In order to address the frameless glass doors in appearance but under .seal of contradictions, Europe's new production of the invisible box insulating glass door leaf. This door is characterized by a fixed all the doors and sealing devices via a special viscose technical caught in between two side plate glass. <br> 4. automatic sliding door .security configuration <br> In Europe, there are many criteria for automatic door security features are detailed and clear provisions for the purpose of these security features is to prevent automatic doors in press preset programs when the action is not an appropriate response to special circumstances, .wounding to occur. Automatic sliding door security configuration is infrared safety grating, installed in the side frame fixed fan, when the door stop, some of the IR receiver do not receive the infrared transmitter, the controller recognized as some of the door, then stop .the door. <br> 5, automatic doors and arc door overlay <br> From the principle of automatic overlap door, automatic arc doors and automatic sliding doors are the same. Automatic duplication door only automatic sliding door has a set of pulleys rail system .: circular door is automatically sliding door of aluminum track for processing, then pour on drive belts do accessible fixed. Electrical parts are identical. But these two door has its own characteristics, in the installation and use of the process you have special requirements. < .br> Automatic duplication door of creativity is to fixed fan width smaller conditions, access to a larger opening width. Automatic sliding door activities sector mobile requirements fixed fan cannot be less than active fan door width, overlapping door due to one-way automatically dual active .fan structure design, solved the problem. It should be noted that the increase in Active fan, reducing the intensity of the wind resistance of the door leaf, so when the door opening width across 2M after continuous Guide should be used. In addition. In .Germany, opened wide the door of more than 2 meters, each side must install two radar sensors. Automatic Arc door Rails bend arc must minimize deformation, can guarantee the accuracy, automatic running solid gate installation must strictly control the door of the vertical and horizontal .rail, run-out on the impact of arc door than sliding door. 6, tight and escape doors and emergency open doors <br> Emergency escape door and emergency open door is two and fire-related automatic sliding doors. Emergency escape door for public .places or fire escape. In the event of a power failure, this automatic valve regardless of the State, at lightning speed in Flash will open the door to prevent emergency situations because of panic caused the opposite mistake operation and impede personnel evacuated the building. In .the European fire specification on this automatic doors are detailed and specific requirements. <br> Emergency door requires automatic sliding door in the door leaf can be as regular as the open door, a large public entrance of automatic sliding door often have such requirements. This .emergency open door looks very simple, so people think that just making a special door clamps and one can make use of the guide rail slider axis can be achieved, even circuit without special arrangements, however, if there is no stable casement door fittings, if .the controller does not have the appropriate design program. Door leaf of instability will shortly be damaged door clips. and then throw an electrical failure, leading to automatic door machine stopped working, so select emergency opened the door, you must review the status of the .side-hinged door leaf stability, particularly its dynamic process stability: there is also a need to examine the status of the controller on the side-hinged programming. At present, there is no standard in this regard, some large projects have chosen this type .of automatic door of quality does not cross the border, and finally had to change back to normal translation door leaf. <br> In principle, when all of the features of a portal crane design are perfect, the door of the fabrication and installation of .quality, to a certain extent, determine whether those features to work correctly. Domestic door production technology, detection means are no clear criteria. <br> 7, large public places of automatic sliding doors <br> From a structural point of view of public .places of automatic sliding door is not a special automatic doors, is its frequency of use too often so worthy of a separate discussion. Because the use frequency of automatic doors and service life are limited. Some buildings or places such as airports, supermarkets and hospital .personnel flow outside the door every day up to several thousands or even tens of thousands of people, or at a specific time period in focus through a large number of staff: in this case, you want to use the automatic valve must be considered. For .example, increase the number of doors, and increase the width of the door leaf, one-way access, etc., but in the end, you must also consider the performance of automatic door itself. All experienced extensive automatic door production, to large .personnel flow of projects were considered very carefully, and or to display your own product testing integrated quality opportunity because once mistakes not only to loss and inconvenience to the users, it is more important to undermine their brand image. <br> First of all, .for automatic sliding door, automatic doors are heavy and light automatic doors. Although the automatic doors of heavy and light usually refers to the weight of the door, but when you select the automatic valve, if there is a public area, although the door may .not too heavy, heavy duty automatic door you want to select. Heavy duty itself has a heavy load and high utilization rate of the two meanings. <br> From mechanical perspective, all parts of the material, Machining accuracy, shape and design determines the .intensity of crane performance and life of uses: in General, only the aspects are strengthening design of automatic sliding door to be used for large-scale human traffic great public spaces. From the automatic sliding door has a characteristic is kept open time not too long .. Because keep opening time is pre-set, if long time can not be closed, will result in confusion or even burn your board or motor, top grade automatic doors in the circuit or motor are equipped with thermal protection device. To prevent excessive use .of the electrical part load is too large. European automatic sliding door to the latest version of the controller developed an automatic functions, when the flow of people at one time too many, is kept open for too long, auto door will automatically convert to the .open State, resulting in protection of automatic doors at the same time does not affect use. Therefore, in the circuit on miningTake this special design of automatic doors can only be used for large public places. <br> <br> <br> < .br>.