Yantai Bonway Manufacturer

Flexible coupling

Application of FCL Flexible coupling:
1. Flexible couplings model FCL is widely used for its compact designing, easy installation, convenient maintenance, small size and lightweight.
2. As long as the relative displacement between shafts is kept within the specified tolerance, FCL flexible coupling will operate the best function and have a longer working life.
3. Greatly demanded in medium and minor power transmission systems driven by motors, such as speed reducers, hoists, compresses, conveyers, spinning and weaving machines and ball mills.
Advantage of FCL Flexible coupling:
1. no backlash, synchronous operation for the encoder and the micro-motor design.
2. high rigidity and allows for large deviations, low inertia and excellent sensitivity.
3. clockwise and counterclockwise rotation characteristics identical.
4. fastening screws connected, metric or imperial dimensions aperture.

TL (LT) elastic sleeve pin coupling parameters and main dimensions: (GB/T4323-84<2002>) mmTLL (LTZ) elastic sleeve coupling characteristics and applications: it can compensate for the relative offset and reduction of the two axes Vibration and cushioning performance, simple structure, easy manufacture, no need for lubrication, convenient maintenance, large radial dimension, suitable for installation base with good rigidity, high centering accuracy, low impact load, and low vibration reduction requirements The transmission is a universal standard coupling in my country. Not suitable for high-speed and low-speed heavy-duty conditions.

TL (LT) type elastic sleeve pin coupling features and applications: it has compensation for the relative offset of the two axes, damping and cushioning performance, simple structure, easy manufacture, no lubrication, convenient maintenance, and large radial size. It is suitable for shaft transmission with good rigidity, high centering accuracy, low impact load, and low vibration reduction requirements. It is a universal standard coupling in my country. Not suitable for high-speed and low-speed heavy-duty conditions.

Features and applications of ZLL (LZZ) elastic pin coupling: This coupling has been listed as standard GB4323-84. It is suitable for connecting two coaxial transmission shafts: it has compensation for the relative deviation of the two shafts and general shock absorption performance. , The working temperature is -20～+70℃, and the transmission nominal torque is 6.31～16000N.m.
The elastic sleeve pin coupling has the characteristics of shock absorption, reasonable structure, convenient maintenance, small number of parts, and strong applicability. It can be used for high-speed rotation with many forward and reverse changes, variable load, and frequent starting. Over the years, it has been adopted by various mechanical connections. The shaft hole types are cylindrical (Y), conical (Z) and short cylindrical (J). The shaft hole and keyway are processed according to the standard GB3852-83 "Coupling shaft hole and keyway form and size".
The half coupling adopts cast steel ZG35Ⅱ. The elastic sleeve is made of synthetic rubber and polyurethane rubber.

Features and applications of HL, HLL (LX, LXZ) elastic pin couplings: It has micro-compensation performance, simple structure, easy to manufacture, convenient pin replacement, extremely poor reliability, suitable for axial movement and frequent starting , The forward and reverse shafting transmission is not suitable for the parts with high reliability requirements and high precision. It is not suitable for high-speed, heavy-duty and strong shock and vibration shafting, and the shafting with low installation accuracy should not be used. Optional.

Features and applications of XL (LX) type elastic star coupling: it has compensation for the relative deviation of the two shafts, damping, cushioning performance, small radial size, simple structure, no lubrication, high bearing capacity, maintenance only, The replacement of the elastic element requires axial movement. It is suitable for connecting coaxial lines, Flexible coupling, frequent starting, forward and reverse changes, medium-speed, medium-torque transmission shaft system and working parts that require high reliability. It is not suitable for heavy load, low speed and difficult parts of the axial size, and the two shafts are difficult to align after replacing the elastic element. XL type-basic type; XLD type-enlarged shaft hole type

ZL (LZ) type pin gear coupling features and applications: it can compensate for the relative offset of the two shafts, has poor vibration reduction, low transmission accuracy, and large transmission torque. Compared with gear couplings, the structure is simple , Lightweight, easy to manufacture and easy to maintain. It does not need lubrication and partly replaces gear couplings. It has high noise and is suitable for large and medium torque shaft transmissions. It is not suitable for parts with high requirements for vibration reduction and strict noise control.
ZL type-basic type;
ZID type—cone hole type (connected with motor);
ZLZ type—connect with intermediate shaft type;
ZLL type-with brake wheel type;

The characteristics and application of ZLD (LZD) elastic pin coupling: it can compensate the relative deviation of the two shafts, has poor vibration reduction function, low transmission accuracy, and large transmission torque. Compared with gear couplings, it has simple structure and quality Lightweight, easy to manufacture and easy to maintain. It does not need lubrication and partly replaces gear couplings. It has high noise and is suitable for large and medium torque shaft transmissions. Flexible coupling is not suitable for parts with high requirements for vibration reduction and strict noise control.
ZL type-basic type;
ZID type—cone hole type (connected with motor);
ZLZ type—connect with intermediate shaft type;
ZLL type-with brake wheel type;

ZLZ (LZJ) gear coupling features and applications: it can compensate for the relative offset of the two shafts, has poor vibration reduction, low transmission accuracy, and large transmission torque. Compared with gear couplings, it has simple structure and light weight , Easy to manufacture and easy to maintain. It does not need lubrication and partly replaces gear couplings. It has high noise and is suitable for large and medium torque shaft transmissions. It is not suitable for parts with high requirements for vibration reduction and strict noise control.
ZL type-basic type;
ZID type—cone hole type (connected with motor);
ZLZ type—connect with intermediate shaft type;
ZLL type-with brake wheel type;

The coupling is also called the coupling. A mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. Sometimes it is also used to connect shafts and other parts (such as gears, pulleys, etc.). Flexible coupling is often composed of two halves, which are connected by a key or tight fit, respectively, and fastened to the ends of the two shafts, and then the two halves are connected in some way. The coupling can also compensate the deviation between the two shafts due to inaccurate manufacturing and installation, deformation or thermal expansion during work, etc. (including axial deviation, radial deviation, angular deviation or comprehensive deviation) ; And alleviate the impact and absorb vibration.
Most of the commonly used couplings have been standardized or standardized. Under normal circumstances, flexible coupling is only necessary to correctly select the type of coupling and determine the type and size of the coupling. When necessary, the load capacity of the vulnerable links can be checked and calculated; when the rotating speed is high, the centrifugal force of the outer edge and the deformation of the elastic element need to be checked, and the balance check and so on.

Types of:
Couplings can be divided into two categories: rigid couplings and flexible couplings.
Rigid couplings do not have the ability to cushion and compensate for the relative displacement of the two axes, requiring strict alignment of the two axes, but this type of coupling has simple structure, low manufacturing cost, and assembly and disassembly. , Convenient maintenance, can ensure high neutrality of the two shafts, large transmission torque, and wide application. Commonly used are flange couplings, sleeve couplings and clamp couplings.
Flexible couplings can be divided into flexible couplings without elastic elements and flexible couplings with elastic elements. The former type only has the ability to compensate the relative displacement of the two axes, but it cannot buffer and reduce vibration. The common ones are slippery. Block couplings, gear couplings, universal couplings and chain couplings, etc.; the latter type contains elastic elements, in addition to the ability to compensate for the relative displacement of the two axes, it also has buffering and damping functions. However, the transmitted torque is limited by the strength of the elastic element, and is generally not as good as the flexible coupling without elastic elements. Commonly used are elastic sleeve pin couplings, elastic pin couplings, plum-shaped couplings, and tire-type couplings. Couplings, serpentine spring couplings and reed couplings, etc.

Details of Curved tooth Gear Coupling:
1. Small dimension, low weight, high transmitted torque ;
2. Elastomers made of polyurethane with shore hardness between 80-98;
3. Compensating the axial relative drift, buffer and vibration reduction;
4. Bore tolerance ISO standard H7;
5. Material: Stainless steel / Carbon steel
6. Finishing: blacken, phosphate-coat, and oxidation.
Advantage of Curved tooth Gear Coupling:
1. Widely used in various mechanical and hydraulic fields
2. Low-cost maintenance
3. Compensation for axial, radial and angular misalignment
4. Convenient axial plugging assembly
5. Installed horizontally and vertically without using any social tools.
6. Excellent mechanical properties
7. No brittlement at low temperature
8. Good slippery and frictional properties
9. Exellent electrical insulation
Application of Curved tooth Gear Coupling:
1. Printing machinery / Packing machinery / Wood-working machinery etc large-scale mechanical equipment
2. Replace to KTR products

The torque is conducted through elastomer flexibles, so the coupling has typically flexible rubber properties.
The flexible inserts of the H-EUPEX coupling are subjected to compression. If the flexible inserts are irreparably damaged, the hub parts come into contact with metal. This “emergency operation capability” is required, etc., in the case of fire pump drives.
The motor torque is transmitted to the hub at the drive end via the shaft-hub connection, which is mostly designed as a keyway connection. The torque is transmitted to the hub on the output side with the aid of elastomer flexible inserts. Flexible coupling hub on the output side further transmits the torque to the driven machine or a gear unit placed in between. Because of the primarily compressionloaded elastomer flexible inserts, the coupling has a progressive torsional stiffness.

The history of elastic sleeve pin coupling: The elastic sleeve pin coupling was once the most widely used coupling in my country. As early as the late 1950s, the JB08-60 elastic ring pin coupling was formulated by the Ministry of Machinery Industry. Standard, flexible coupling is the first coupling standard in our country.
The elastic sleeve pin coupling uses a pin with an elastic sleeve (rubber material) on one end, which is installed in the flange hole of the two halves of the coupling to realize the connection of the two halves of the coupling. The elastic sleeve pin coupling The characteristics of the device are:
1. The elastic sleeve pin coupling relies on the locking force of the pin group to generate the frictional moment on the contact surface, and compress the rubber elastic sleeve to transmit the torque. It is suitable for small and medium power shafting transmissions with good rigidity of the installation base, high centering accuracy, low impact load, and low vibration reduction requirements.
2. The work of the elastic sleeve is compressed and deformed. Because the thickness of the elastic sleeve is thin, the volume is small, and the elastic deformation is limited, the elastic sleeve pin coupling can compensate the axis displacement and elasticity, but the allowable compensation amount for the axis displacement is relatively large. Less, weaker elasticity.
3. The structure of the elastic sleeve pin coupling is relatively simple, easy to manufacture, no lubrication, no need to bond with metal vulcanization, easy to replace the elastic sleeve, no need to move the half coupling, with certain compensation for the relative deviation of the two shafts and damping Buffering performance.

Features of elastic pin coupling:
1. The elastic pin coupling is only suitable for medium-speed transmission shafts with very low requirements, and is not suitable for working conditions with high reliability requirements, because the material of the elastic element (column) is generally nylon with trace compensation Two-axis offset ability, elastic parts are sheared when working, and work reliability is poor.
2. The elastic pin coupling has a relatively simple and reasonable structure, easy maintenance, symmetrical and interchangeable on both sides, long life, allowing large axial movement, and has the properties of cushioning, shock absorption, and wear resistance. Rod pin coupling.
3. The elastic pin coupling is a pin made of a number of non-metallic elastic materials, which is placed in the flange hole of the two halves of the coupling, and the two halves of the coupling are connected by the pin. The coupling has a simple structure , Easy to manufacture, easy to assemble, disassemble and replace the elastic element, without moving the two halves of the coupling.