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Is this still a question, it must have been reworked. Don't care about it, how to install the blades!
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Summary. How to solve the problem of misalignment of the screw conveyor shaft
The temperature of the reducer is too high mainly due to the misalignment of the connection between the various transmission shafts, which needs to be checked step by step, the position of the input shaft of the reducer is normal, but the temperature of the bearing at the position of the output shaft is too high, which is due to the possibility that the center line of the screw shaft may deviate, or the bearing at the position of the output shaft of the reducer is burned, and it may also be due to the fact that the bearing seats at both ends are not firmly fixed, and the loosening and drying occur. It is also possible that the temperature of the output bearing is normal, but the temperature of the input shaft increases, mainly because the motor fixing bolt is loose, or the output bearing of the reducer is burned out. The temperature of the output bearing and input bearing of the reducer increases at the same time, mainly because the bearings at both ends of the reducer are damaged at the same time, or the fixing bolts of the reducer are loose.
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Causes and solutions of shaftless screw conveyor blade damage.
1>. The blade is too thin, due to the lack of intermediate shaft in the shaftless screw conveyor, all the stress points are on the blade, so the thickness of the blade has a very important impact on the actual use of the equipment. Choosing an appropriate thickness of spiral blades directly affects the use effect of shaftless screw conveyor.
2>. The wheelbase of the blade is too small, and the spiral diameter is not properly selected. When conveying powder or flake materials, often due to the small wheelbase of the blade, the extrusion force is too large, which directly damages the blade, and with the rotation of the shaft, no matter how thick the blade will also produce a certain amount of damage. Another reason is that the pipe diameter is small, which can also cause excessive pressure.
Resulting in severe damage to the blades. After taking the above two measures, the blade speed can be reduced at the same time. to achieve this effect.
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Shanghai Qinai Machinery will answer for you:
Screw conveyors of the same specification length with shafts are more expensive than those without shafts.
The shafted screw conveyor conveys sub-packaged, granular and small block materials, and is not easy to convey deteriorated, viscous and easy to agglomerate materials.
The longest conveying distance of shafted screw conveyor can reach 70 meters, and the longest conveying distance of shaftless conveyor is 25 meters.
There are more specifications of shafted screw conveyor, and less specification of shaftless screw conveyor.
Shaftless screw conveyor is suitable for conveying high humidity. It is easy to bond, easy to clog and other materials, and it does not have much requirements for the material itself.
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Shaftless screw conveyor features:
1.Strong anti-winding, no interference of the central shaft;
2.If the conveyor belt and easily wound materials, it has a strong advantage.
The shafted screw conveyor is to use the screw to push the material in the casing, so as to achieve transportation, its lifting bearing is the use of sliding bearing, and is equipped with a dust-proof sealing device, and the hanging shaft and the screw shaft are connected by the slider.
Shafted screw conveyor features:
1.The bearing capacity is larger than that of the shaftless, and the use is safe and reliable;
2.It has strong adaptability, and is easy to install and maintain;
3.The machine is small in size, the speed is relatively high, and the conveying can be fast and uniform;
4.Generally, there is a cleaning device at the discharge end, and the inlet and outlet can be flexibly arranged;
5.The machine has low operating noise, good sealing, and good rigidity of the whole machine.
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In terms of design, the shaftless screw conveyor adopts the design of no central shaft, and uses a steel spiral with a certain flexibility to push the material, so it can convey some materials that the shafted screw conveyor cannot or is not easy to convey, such as granular materials, mild pasty materials, semi-fluid and viscous materials, as well as materials that are easy to be wound and blocked, and its characteristics are:
1) Strong anti-winding, no interference of the central shaft;
2) If the conveying belt and easy to wrap the material, it has a strong advantage.
Shafted screw conveyor, is the use of screw to push the material in the casing, so as to achieve transportation, its lifting bearing is the use of sliding bearing, and equipped with dust-proof sealing device, and the hanging shaft and the screw shaft are connected by the slider, and shaftless screw conveyor compared with the advantages are:
1) The bearing capacity is larger than that of the shaftless, and the use is safe and reliable;
2) It has strong adaptability, and is easy to install and maintain;
3) The machine is small in size and has a relatively high speed, which can achieve fast and uniform conveying;
4) There is generally a cleaning device at the discharging end, and the inlet and outlet can be flexibly arranged;
5) The machine has low operating noise, good sealing, and good rigidity of the whole machine.
Screw conveyor is a machine that uses a motor to drive the screw to rotate and move materials to achieve the purpose of conveying. When the spiral shaft rotates, due to the gravity of the material and the friction generated by it and the tank wall, the material can only move forward along the bottom of the groove of the conveyor under the push of the blades.
The screw conveyor is to use the rotating screw to move the conveyed material along the fixed casing and carry out the conveying work, the head and tail bearings are moved to the outside of the shell, the lifting bearing adopts the sliding bearing and is equipped with a dustproof sealing device, the bearing generally adopts powder metallurgy, the cement is conveyed with felt bearing, and the hanging shaft and the screw shaft are connected by slider. The screw conveyor is generally composed of three parts: the conveyor body, the inlet and outlet and the driving device; The spiral blades of the screw conveyor have three forms: solid spiral surface belt spiral surface and blade spiral surface, wherein, the application of vane spiral surface is relatively rare, mainly used for conveying viscosity and compressibility materials, this spiral suspension type, in the process of completing the conveying operation, has and completes the functions of stirring and mixing of materials at the same time. Compared with other conveying equipment, the screw conveyor has the advantages of small cross-sectional size, good sealing performance, stable and reliable operation, multi-point loading and unloading in the middle, safe operation and easy maintenance. >>>More
Screw conveyors are classified according to shaft diameter, which can be divided into two types: shafted screw conveyors and shaftless screw conveyors. Shaftless screw conveyors are not easy to use in the environment of large angles, and are generally conveyed horizontally or at small angles. >>>More
1) Check whether the tape and joints are damaged before driving, and if there is damage, repair it in time; Check whether the fixed part is loose, if there is looseness, it should be tightened in time; At the same time, it is also necessary to check whether the upper and lower rollers are damaged and fall off, and if so, they should be replaced in time. On the basis of the above inspection, add lubricating oil to the transmission drum and the reversing roller, the upper and lower rollers, and ensure that the oil volume of these components is sufficient and the lubrication is good, you can send a contact bell signal to the other party (especially the contact bell signal must be sent when the longer belt conveyor is running), and wait for the other party to drive after the force, and then no load test, the time of no load test should generally be 1-2h, but the small should be less than the entire belt length to run a cycle; During the test, the belt should not deviate, the driving device should run smoothly, and there should be no undue friction between the moving parts, the fixed cover and the blanking port. After the test run is normal, it can be loaded. >>>More
The principle of buried scraper conveyor is to rely on the internal friction force and side pressure of the material, in the process of conveying the material, the pressure in the direction of movement of the scraper chain and the pushing force of the lower material to the upper material when the material is continuously fed, the synthesis of these forces is enough to overcome the external friction resistance between the material and the shell when the material is conveyed in the machine tank and the weight of the material itself. The material can form a continuous material flow to move forward regardless of horizontal conveying, inclined conveying and vertical conveying.