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Help CenterRigid chain, pin tooth chain, lifting chain, bite chain, horizontal push zipper, transmission chain
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The rigid chain lifting table is an advanced and reliable product at present. The rigid chain converts the directional bending of the chain into the linear movement of the column section through the bite of the special chain piece. The separated chain can be stored compactly, saving space, and can accept vertical and horizontal loads. During the whole process of operation, the output of force and speed of the rigid chain lifting table is constant, which is in decisive proportion to the output of the reduction motor. It has good mechanical characteristics, and can realize arbitrary stop and multi-level positioning. The speed and position control is simple and accurate. Compared with other transmission methods, the power is more than 10 times energy-saving, efficient and energy-saving, long service life (more than 5 million times), and less maintenance. It can operate synchronously with single chain, double chain or even multiple chains, disperse the load and have simple control. It has lifting protection device, low noise, reliable braking, accurate positioning and other characteristics. It can adapt to computer digital control and frequency conversion control, and is suitable for all kinds of places with high requirements for safety performance.The device is a new type of lifting platform driven by a rigid chain, which converts the horizontal rotating power into lifting force. With simple structure, the lifting platform can be lifted more smoothly and safely. And it can be installed in the lower foundation pit.It can be summarized as the following characteristics:→ higher transmission efficiency→ less power requirements→ accurate positioning→ suitable for high-speed beat requirements→ few parts→ fast maintenance→ long service life→ basic lubrication free→ low noiseAt present, the application occasions of rigid chain lifting platform: industrial equipment, large theater stage, ship hangar, three-dimensional warehouse, aerospace, automobile new energy exchange station, etcComposition: it is mainly composed of base, table, fixed fork arm, sliding fork arm, rigid chain column, storage box, driver and reduction motor.Working principle compared with other productsIn the field of industrial application, there are various technical solutions to solve the problem of linear motion of load. The frequently used ones are: hydraulic cylinder, cylinder, electric push rod (screw propeller), chain, steel wire rope, cam, inclined slider, diagonal bracing, gear rack and self-assembled screw lifter, etc. Some of these methods have complex systems, such as hydraulic, pneumatic, cam, slider, diagonal bracing, gear rack and self-assembly screw lifter, which all need a set of power and motion conversion system: some have a single function, which can only withstand tension and can not be applied to occasions under pressure, that is, they can only pull but can not promote the movement of objects, such as chains, steel wire ropes, etc. The research of rigid chain mainly solves the problem that the improved chain can bear both tension and pressure, so it can be used inIt is widely used in the field of linear motion (horizontal or vertical).There are two forms of ITT rigid chains used to vertically lift loads or load platforms: chain lifters and hinged liftersThe basic structure of the chain lifter is the same as that of the ordinary chain, but the shape of the chain plate is special. At both ends of the chain pin shaft and the outside of the chain plate, there are rollers for driving, and in the middle of the chain plate, there are rollers with larger diameter for internal guidance of the driver. One end of the chain plate is provided with a shoulder and the other end is provided with a shoulder groove. The shoulder and the shoulder groove on the chain plate of adjacent chain links cooperate with each other, so that the chain can rotate in one direction and cannot rotate in the other direction. When the chain is under pressure load, the special shaped head link makes the force point deviate from the center of the pin shaft, and generates a locking force between the shoulder and the shoulder groove, so that the adjacent links are locked with each other. The chain has the characteristics of a rigid push rod. In order to maintain the stability of the head link, two pins are required. The structure of the head link is not stressed outside the driver, but the chain can be bentIt is used to connect the inner and outer chain plates and make them have the same function of relative rotation as ordinary chains. On and outside (driveOn the corresponding position of the pin shaft (moving side), the inner and outer chain plates are provided with notches with the same diameter as the pin shaft, and the pin shaft engages with the notch of the chain plateBy closing, the chain links can be stacked one by one to form a rigid column when leaving the drive sprocket like building blocks. And chain liftingLike the elevator, the hinge elevator also uses the stress condition of the special chain link of the head, and makes the chain linkThey are locked with each other.The rigid chain is driven by the driver, which is equipped with a drive sprocket and a guide plate. The chain lifter uses the roller in the middle of the chain plateThe hinge lifter is guided by the guide roller of the chain plate, which can make the chain in a vertical position just when it leaves the drive sprocket,The chain entering the non bearing side of the driver is in a horizontal state. The sprocket of the driver can be made of any form and as requiredThe speed and power are determined by the mechanical device drive. The internal links of chain lifters and hinge lifters provide external guidance to the bearing platform within the full travel of load lifting movement, so as to ensure the correct locking of chain links. In ordinary circumstancesIn this case, two guide rails are needed to balance the bearing platform. Large or complex platforms need additional guide rails. For the mechanism with self guiding ability (such as diagonal bracing), there is no need for another guiding mechanism, but the mechanism should have considerable accuracy.2) The bearing platform must be vertically connected with the rigid chain without any shaking. When connecting with the bearing platform, special chain links and connecting plates at the head of the rigid chain are used. At the maximum stroke of the chain, the installation error of the chain measured from the center line of the chain plate at the top of the chain shall not be greater than 0.5mm.
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