Screw clamping mechanism connects long shafts for transmission scenarios with axis spacing requirements and high coaxiality without buffering
Main structure: It consists of two half Couplings and clamping screws. The half couplings are usually made of high-strength aluminum alloy or stainless steel, which have the advantages of light weight, high strength and corrosion resistance; the clamping screws are generally made of high-strength steel to ensure that they can provide sufficient clamping force to enable the coupling to firmly connect the two shafts 123.
Length advantage: The overall length is relatively long, which can adapt to larger axle spacing requirements. It is widely used in some equipment with specific requirements for axle spacing and can meet the installation layout requirements of different equipment.
How it works
By tightening the clamping screws, the two half couplings tightly hold the connected shafts, thereby achieving torque transmission. This connection method can ensure that the two shafts maintain a high degree of synchronization during rotation. The gapless design makes the transmission accuracy higher and can effectively meet the needs of equipment with strict transmission accuracy requirements34.
Performance Advantages
High-precision transmission: It can achieve gapless transmission and ensure the synchronous motion accuracy of the two axes is extremely high, which is crucial for precision machining, measuring instruments and other equipment with strict transmission accuracy requirements, and helps to improve product processing quality and measurement accuracy
High torque transmission capability: Despite its long length, it still has strong torque transmission capability, which can meet the power transmission requirements of many industrial equipment under different working conditions and ensure the normal operation of the equipment.
Good adaptability: It has a certain ability to compensate for radial, angular and axial deviations within a certain range, which can reduce the impact of shaft installation errors on equipment operation to a certain extent, improve equipment stability and reliability, and reduce equipment vibration, noise and component wear caused by installation errors.
Easy installation and maintenance: When installing, just insert the half coupling into the shaft and tighten the screws to complete the installation; it is also convenient to disassemble, which is convenient for equipment inspection and maintenance, can effectively shorten the equipment downtime and improve production efficiency34.
Main parameters
Shaft diameter range: Common shaft diameters range from a few millimeters to tens of millimeters. Different application scenarios and equipment can select appropriate coupling specifications according to the actual shaft diameter to ensure good matching and transmission performance 4.
Rated torque: Rated torque varies with the size of the coupling. The rated torque of a small-sized screw-clamped long rigid coupling may be only a few Nm to tens of Nm, while a large-sized product can reach hundreds of Nm or even higher. When selecting, users need to determine the appropriate specifications based on the torque requirements of the specific equipment to ensure that the coupling can reliably transmit power and avoid problems such as slippage and damage due to insufficient torque.
Maximum speed: Generally, the maximum speed is between several thousand rpm and tens of thousands rpm. The specific value depends on the size, material, manufacturing process and balancing accuracy of the coupling. In high-speed rotating equipment, it is necessary to ensure that the maximum speed of the selected coupling can meet the operating requirements of the equipment to prevent the coupling from failing due to excessive speed and affecting the normal operation of the equipment.
Application Areas
Mechanical Manufacturing: Used in the connection between the spindle and motor shaft of large machine tools and the transmission system of heavy machinery, etc., to ensure the stable transmission of power and high-precision operation of equipment, and meet the processing accuracy requirements of large parts.
Electronic equipment: Shaft transmission in large electronic equipment production equipment, such as transmission equipment in large LCD panel production lines, electronic chip manufacturing equipment, etc., can ensure high-precision operation of the equipment and improve product production quality.
Packaging and printing: used in large packaging machinery and printing equipment, such as large carton packaging machines, web printing machines, etc., to connect the shafts of various transmission parts to ensure the smooth progress of the packaging and printing process, and improve production efficiency and product quality.
Automobile manufacturing: It is widely used in automobile engine testing equipment, automobile parts processing machine tools, etc., which have extremely high requirements for precision and reliability. The coupling can ensure the high-precision operation of the equipment and meet the manufacturing precision requirements of automobile parts.
Aerospace: Used for various shaft connections in aerospace test equipment, such as wind tunnel test equipment, aircraft engine test benches, etc., to ensure the accuracy and reliability of test data; also used in aircraft parts processing, assembly and maintenance equipment.
Robots and automated equipment: In the joints of large industrial robots and large conveying mechanisms in automated logistics equipment, precise power transmission can be achieved, improving the working accuracy and efficiency of the equipment.
Energy equipment: In the transmission system of energy equipment such as large wind turbines and hydroelectric generators, it can ensure efficient and stable transmission of power, improve the operating efficiency and reliability of the equipment, and adapt to high-load operation requirements.