Product Description
HMB produce 2 type quick hitch:hydraulic quick hitch,manual quick hitch
| Model | Unit | HMB02 | HMB06 | HMB08 | HMB15 | HMB20 | HMB25 | HMB30 | HMB40 |
| Width | mm | 150-250 | 250-280 | 270-300 | 335-450 | 420-480 | 450-500 | 460-550 | 600-660 |
| Length | mm | 300-450 | 500-550 | 580-620 | 680-800 | 900-1000 | 950-1000 | 960-1100 | 1000-1150 |
| Height | mm | 220-280 | 280-320 | 300-350 | 380-420 | 480-520 | 500-550 | 560-600 | 570-610 |
| Pin Diameter Range | mm | 25-35 | 40-50 | 50-55 | 60-65 | 70-80 | 90 | 90-100 | 100-110 |
| Weight | kg | 30-50 | 50-80 | 80-115 | 160-220 | 340-400 | 380-420 | 420-580 | 550-760 |
| Carrier | Ton | 0.8-3.5 | 4-7 | 8-9 | 10-18 | 20-24 | 25-29 | 30-39 | 40-45 |
Company Profile
Located in HangZhou, ZheJiang province, established in 2009, HangZhou CHINAMFG Construction Machinery Equipment Co.,Ltd registered HMB Brand in 2011. We started to develop oversea market in 2013.With 13 years experience, specialized in manufacturing excavator,skid loader attachemnts and spare parts. Our uncompromising commitment to high quality and thoughtful service wins us a good reputation and more coming partners.
CE certificate
FAQ
Q: Are you a manufacturer?
A: Yes,our factory was established in 2571.
Q: Are you sure your product will fit my excavator?
A: Our equipments are suitable for most excavators. Show us your excavator model, we’ll confirm the solution.
Q: How about your products warranty?
A: 12 months warranty for hydraulic breaker, beyond the warranty period.
Q: Can you produce according to customers’ design?
A: Sure, OEM/ODM service available. We are professional manufacturer in HangZhou.
Q: What’s the MOQ and payment terms?
A: MOQ is 1set. Payment via T/T,L/C, Western Union accepted, other terms can be negotiated.
Q: How about delivery time?
A: 5-25 work days after the payment.
Q: How about the package?
A: Our equipments wrapped by stretch film, packed by pallet or polywood case; or as requested.
Q: Which country have you exported?
A: Saudi Arabia, America, Thailand, Cyprus, India, Canada, Australia, Peru, Egypt, Brazil, Mexico, South Africa, etc.
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| After-sales Service: | One Line Service and Local Service |
|---|---|
| Warranty: | 1 Year |
| Type: | Pistons |
| Application: | Excavator |
| Certification: | CE, ISO9001: 2000 |
| Condition: | New |
| Customization: |
Available
| Customized Request |
|---|
How Does a Pin Coupling Protect Connected Equipment from Shock Loads and Vibrations?
Pin couplings are designed to provide excellent protection to connected equipment from shock loads and vibrations, ensuring the smooth and reliable operation of the machinery. The unique features of pin couplings contribute to their ability to absorb and dampen shock loads and vibrations effectively:
- Flexibility: Pin couplings possess a certain degree of flexibility due to the presence of movable pins. When subjected to sudden shock loads or vibrations, the pins can flex and move slightly, absorbing the impact and preventing it from transmitting directly to the connected equipment. This flexibility helps in reducing stress and minimizing the risk of damage to the machinery.
- Torsional Compliance: The pin coupling’s design allows for a certain amount of torsional compliance. This means that when the connected shafts experience slight misalignments or angular displacements, the pin coupling can compensate for these variations without causing additional stress or vibration in the system. This feature ensures that the machinery remains in proper alignment even under dynamic conditions, reducing wear and tear.
- Damping Characteristics: The presence of movable pins introduces damping characteristics to the coupling. When vibrations occur in the system, the pins can dampen these oscillations, preventing resonance and the amplification of vibrations. This damping effect improves the overall stability and performance of the machinery.
- Strength and Resilience: High-quality pin couplings are constructed from durable materials with excellent fatigue resistance. This enables the coupling to withstand repeated shock loads and vibrations over an extended period without compromising its integrity. The strength and resilience of the pin coupling contribute to the protection of the connected equipment.
Overall, pin couplings are reliable and versatile components that can effectively protect connected equipment from shock loads and vibrations. Their flexibility, torsional compliance, damping characteristics, and robust construction make them suitable for various industrial applications where shock and vibration mitigation are essential for maintaining the health and longevity of machinery and equipment.
Impact of Pin Coupling on the Overall Reliability of Connected Equipment
A pin coupling plays a crucial role in enhancing the overall reliability and performance of connected equipment in various industrial applications. Its design and construction contribute to several factors that influence reliability:
1. Torque Transmission: Pin couplings efficiently transmit torque between the driving and driven shafts, ensuring smooth power transfer without slippage or loss. This consistent torque transmission helps maintain the stability and reliability of the system during operation.
2. Misalignment Compensation: Pin couplings are designed to accommodate small amounts of angular, parallel, and axial misalignment between shafts. By tolerating misalignment, the coupling reduces stress on connected equipment, bearings, and seals, thereby enhancing reliability and extending the service life of these components.
3. Shock and Vibration Absorption: In applications with dynamic loads, such as pumps, compressors, and heavy machinery, pin couplings help dampen shock and vibrations. By absorbing and reducing these impact forces, the coupling minimizes stress on the system and prevents premature component failure.
4. Simplified Maintenance: Pin couplings generally have a simple design, making them easy to install and maintain. The ease of maintenance ensures that the coupling can be regularly inspected, lubricated, and replaced when necessary, reducing downtime and increasing the overall reliability of the equipment.
5. Corrosion Resistance: Depending on the materials used, pin couplings can be highly resistant to corrosion, making them suitable for use in harsh or corrosive environments. This corrosion resistance prevents degradation of the coupling and its components, enhancing reliability and longevity.
6. Enhanced Durability: High-quality pin couplings are manufactured from robust materials and undergo precise machining processes. These attributes contribute to the coupling’s durability, allowing it to withstand heavy loads and harsh conditions over an extended period.
7. Balanced Design: The design of a pin coupling ensures that the load is evenly distributed between the driving and driven shafts. This balanced load distribution reduces stress concentrations, minimizes wear, and increases the reliability of connected equipment.
8. Compliance with Standards: Reputable pin coupling manufacturers ensure their products comply with industry standards and regulations. Meeting these standards ensures that the coupling is designed and manufactured to specific quality criteria, enhancing reliability and safety.
Overall, a well-selected and properly installed pin coupling can significantly improve the reliability and performance of connected equipment. It helps prevent unexpected failures, reduces downtime, and contributes to the overall efficiency of industrial processes.
Understanding Pin Couplings and Their Functionality
A pin coupling, also known as a shear pin coupling, is a type of mechanical coupling used to connect two rotating shafts in a mechanical system. It is designed to transmit torque while allowing for a limited amount of angular misalignment between the shafts. The primary function of a pin coupling is to protect the connected equipment from torque overload and prevent damage to the shafts and other components in case of sudden shock or overload.
How a Pin Coupling Works:
A typical pin coupling consists of two hubs, one on each shaft to be connected, and a series of pins that pass through the hubs to join them together. The pins are usually made of a softer material than the hubs, such as brass or aluminum, to act as sacrificial elements. The number and size of the pins depend on the coupling’s torque rating and the required angular misalignment capacity.
When the shafts are misaligned, the pins experience shear stress as they bend under the applied load. In normal operating conditions, the pins remain intact and allow the torque to transfer from one shaft to another. However, in the event of an overload or excessive misalignment, the pins will shear off, preventing the transmission of excessive torque and protecting the connected equipment from damage.
After shearing, the damaged pins can be easily replaced, and the coupling can be put back into service without major repairs to the equipment. This feature makes pin couplings particularly suitable for applications with varying operating conditions and environments where shock loads or sudden overloads may occur.
Advantages of Pin Couplings:
– Protection against Overload: The shear pins act as a safety feature, protecting the connected equipment from excessive torque and sudden shocks.
– Misalignment Tolerance: Pin couplings can accommodate a limited amount of angular misalignment between the shafts.
– Easy Replacement: After shearing, the damaged pins can be quickly replaced, reducing downtime and maintenance costs.
– Versatility: Suitable for a wide range of applications, including pumps, compressors, and other industrial machinery.
– Cost-Effective: The sacrificial pins are cost-effective components that can be easily replaced, avoiding costly repairs to the main equipment.
Limitations:
– Pin couplings have lower torque capacities compared to some other coupling types, such as gear couplings or rigid couplings.
– The need to replace the shear pins after each failure may lead to frequent maintenance requirements in applications with frequent overloads or misalignments.
In summary, pin couplings offer a reliable and cost-effective solution for torque transmission and protection against overloads in various mechanical systems. Their ability to accommodate misalignment and absorb shock loads makes them suitable for a wide range of industrial applications.
editor by CX 2024-05-02
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