Quick couplers (also called quick hitches) are used with construction machines to allow the rapid change of buckets and attachments on the machine. They remove the need to use hammers to manually drive out and insert the mounting pins for attachments. They can be used on excavator, mini excavator, backhoe loader and so on.
We can supply 3 type: hydraulic type, Double lock type and Mechanical type.
|Multi-Quick Coupler Specification|
|Center To Center(A1)||mm||120~140||140~215||185~290||260~320||340~430||380~490||460~530||480~550|
Up and Down pin
|Lifting Eye Rating||T||1||1||2-3||4||5||8|
We can also product hydraulic type and double lock type.
1. Welding Technique: 17 years experience, full welding and not easy to crack.
2. Grease Nipple: Make pin not easy to wear
3. Double Lock System: Front jaw lock and Rear safety lock make the operation much safer. Which embrace the pins tightly even if the cylinder suddenly inoperation.
4. Imported oil cylinder and not easy to damage
5. Without safety pin and excavator operator can operate it in the cab alone.
6. Wide range of application: Compared with fixed C to C distance(A) of routine quick hitch, multi quick hitch is more flexible. It is suitable for all attachments with the C to C distance(A) within its range.
1. Open the cylinder, and ensure slide is fully extended with front jaw safety lock open.
2. Line up attachments and engage front attachments pin.
3. Close the cylinder. This will retract the slide mechanism and this will visibly lock the front jaw safety latch around front attachment pin.
4. Open the cylinder again. The sliding mechanism will extend and engage the rear slide hook CHINAMFG the rear attachment pin.
5. Proceed with connection test.
RAY ATTACHMENTS includes HangZhou CHINAMFG International Trading Company and HangZhou CHINAMFG Precision Machinery Co.,Ltd. It is a Integrated Company dedicated to production, research and development and sales of construction machinery attachments.with 17 years experience. The main products include earth auger, quick hitch, hydraulic breaker, vibro ripper and other heavy duty equipment. Our company covers an area of more than 20000 square CHINAMFG and has more than 150 employees, including professional R & D teams and Sales Department. Welcome to visit!
What are the maintenance requirements for hydraulic couplings to ensure optimal performance?
Maintaining hydraulic couplings is crucial to ensure their optimal performance and extend their service life. Regular maintenance helps identify potential issues early on and prevents costly breakdowns. Here are the essential maintenance requirements for hydraulic couplings:
- Inspection: Regularly inspect the hydraulic coupling for signs of wear, damage, or leaks. Check for any unusual noises, vibrations, or changes in performance during operation.
- Lubrication: Ensure proper lubrication of the coupling’s moving parts. Use the manufacturer-recommended lubricants and follow the specified intervals for re-lubrication.
- Coupling Alignment: Check and correct the alignment of the driving and driven shafts connected by the coupling. Misalignment can lead to premature wear and reduce coupling efficiency.
- Bolt Tightening: Regularly check and tighten the bolts and fasteners securing the coupling. Loose bolts can lead to coupling slippage and compromised power transmission.
- Cleanliness: Keep the hydraulic coupling and its surrounding area clean from dirt, debris, and contaminants. Clean the coupling during scheduled maintenance to prevent contamination-related issues.
- Temperature and Pressure Checks: Monitor the operating temperature and pressure to ensure they remain within the specified limits for the coupling. Operating beyond the recommended ranges can cause damage and reduce coupling performance.
- Overload Prevention: Avoid exceeding the rated torque capacity of the coupling to prevent overload and potential damage to the coupling or connected equipment.
- Replacement of Worn Parts: Replace any worn or damaged components of the hydraulic coupling promptly. Follow the manufacturer’s guidelines for part replacement and use genuine spare parts when needed.
- Periodic Maintenance: Establish a regular maintenance schedule for the hydraulic coupling based on the operating conditions and manufacturer recommendations. Adhering to this schedule helps identify and address issues before they become severe.
- Expert Inspection: If you encounter any unusual performance issues or suspect coupling problems, consult a hydraulic system expert for a detailed inspection and analysis. They can provide valuable insights and recommendations for maintenance and repairs.
Proper and consistent maintenance of hydraulic couplings is essential to ensure their reliability, efficiency, and safe operation. By following the recommended maintenance practices, you can prolong the life of the hydraulic coupling and optimize the performance of your hydraulic system.
Are hydraulic couplings suitable for use in hydraulic cylinders or pumps?
Yes, hydraulic couplings are commonly used in hydraulic cylinders and pumps, playing a crucial role in connecting various components within hydraulic systems. Hydraulic cylinders and pumps are essential components in hydraulic systems, responsible for generating and controlling fluid power to perform mechanical work.
Hydraulic cylinders are actuators that convert fluid pressure into linear motion, producing force and movement. They are widely used in various applications, such as construction machinery, manufacturing equipment, agricultural machinery, and automotive systems.
Hydraulic pumps, on the other hand, are responsible for generating the fluid flow and pressure required to operate hydraulic systems. They provide the driving force that enables hydraulic cylinders and other actuators to perform their intended tasks.
Hydraulic couplings are used in hydraulic cylinders and pumps to connect hoses, tubes, and other hydraulic components. They ensure a secure and leak-free connection, allowing hydraulic fluid to flow between different parts of the system. Some common coupling types used in hydraulic cylinders and pumps include:
- JIC Fittings: JIC (Joint Industry Council) fittings, which have a 37-degree flare angle, are commonly used in high-pressure hydraulic systems, including hydraulic cylinders and pumps. They provide reliable metal-to-metal sealing and are easy to assemble and disassemble.
- ORFS Fittings: ORFS (O-Ring Face Seal) fittings are widely used in high-pressure hydraulic applications. They provide a robust and leak-free connection through an O-ring seal in the face of the fitting.
- NPT Fittings: NPT (National Pipe Thread) fittings, with their tapered threads, are commonly used in lower-pressure hydraulic systems, providing a reliable seal with the use of thread sealants like Teflon tape.
- BSP Fittings: BSP (British Standard Pipe) fittings, available in parallel (BSPP) and tapered (BSPT) threads, are widely used in European hydraulic systems.
Properly selected and installed hydraulic couplings ensure the integrity of the hydraulic system, allowing efficient and reliable power transmission between hydraulic cylinders, pumps, valves, and other components. When using hydraulic couplings in hydraulic cylinders and pumps, it’s essential to consider factors such as the required pressure rating, flow capacity, material compatibility, and environmental conditions to ensure optimal performance and safety.
In summary, hydraulic couplings are essential components in hydraulic systems, making them well-suited for use in hydraulic cylinders and pumps, where they facilitate fluid flow and help maintain the integrity of the overall hydraulic system.
What are the different types of hydraulic couplings used in various industrial applications?
Hydraulic couplings come in various types and designs to suit different industrial applications. Some of the commonly used types include:
- Jaw Couplings: Jaw couplings are versatile and widely used in industrial machinery. They consist of two hubs with interlocking jaws that transmit torque between the shafts. These couplings provide good misalignment capacity and vibration damping.
- Disc Couplings: Disc couplings use a series of thin, flexible metal discs to transmit torque. They offer high torsional stiffness and can accommodate misalignments. They are commonly found in high-performance applications and precision equipment.
- Fluid Couplings: Fluid couplings use hydraulic fluid to transmit torque. They are suitable for applications requiring smooth start-ups and shock absorption. These couplings are often used in heavy machinery, such as conveyors and crushers.
- Gear Couplings: Gear couplings consist of gear teeth on the hubs that mesh with each other to transmit torque. They offer high torque capacity and can handle misalignments and shock loads. Gear couplings are commonly used in heavy-duty industrial applications.
- Oldham Couplings: Oldham couplings use a sliding disc in the middle to transmit torque. They provide high misalignment capacity and are used in applications where shafts are not in perfect alignment.
- Diaphragm Couplings: Diaphragm couplings use a thin metal diaphragm to transmit torque. They provide high torsional stiffness and can handle high speeds and misalignments. These couplings are used in applications like pumps and compressors.
- Beam Couplings: Beam couplings use helical cuts in a flexible beam to transmit torque. They are lightweight and have good misalignment capacity. Beam couplings are used in precision equipment and motion control applications.
- Universal Joints: While not a traditional hydraulic coupling, universal joints are used in fluid power transmission applications. They provide flexibility in transmitting torque at varying angles and are commonly found in drivetrains and automotive systems.
Each type of hydraulic coupling has its advantages and limitations, making them suitable for specific industrial applications based on factors like torque requirements, misalignment tolerance, and operating conditions. Proper selection and maintenance of hydraulic couplings are essential to ensure efficient power transmission and prolong the life of the machinery.
editor by CX 2023-11-07