Product Description
Product Description
This gearbox is designed for plastic extrusion machine. It meet JB/T9040-1999 standard. The gear is made of high-strength alloy steel and hardened by carburizing and quenching. The accuracy of grinding teeth is higher than Level 6 and the hardness is HRC 54-62. In the front of output shaft,we assemble a thrust bearing with high safety factor to bear the extrusion pressure of screw.
Detailed Photos
Product Parameters
Loading capacity sheet of CHINAMFG and ZSYJ reduction gearboxes | ||||||||||||||||||||
Type | ZLYJ | ZSYJ | ||||||||||||||||||
Spec | △ | △ | △ | △ | △ | △ | * | * | * | * | * | * | * | * | * | * | * | * | ||
112 | 133 | 146 | 173 | 200 | 225 | 250 | 280 | 315 | 330 | 375 | 395 | 420 | 450 | 500 | 560 | 630 | 450 | 560 | 530 | |
-8 | -8 | -10 | -12.5 | -12.5 | -16 | -16 | -16 | -16 | -16 | -16 | -16 | -16 | -12 | -20 | -20 | -20 | -32 | -57 | -44 | |
Normal input power(kw) n=1500rpm | ||||||||||||||||||||
Ordinary reliable | 15 | 22 | 30.8 | 39 | 55 | 75 | 82.5 | 116 | 171 | _ | 260 | 300 | 315 | 332 | 450 | 600 | 825 | 240 | 240 | 370 |
High reliable | 10 | 15 | 18.3 | 30.8 | 45 | 60 | 67 | 75 | 116 | 207 | 207 | 240 | 250 | 266 | 350 | 550 | 675 | 200 | 220 | 315 |
Allowable output torque(N.m) | ||||||||||||||||||||
Ordinary reliable | 800 | 1165 | 1962 | 2484 | 4379 | 6568 | 7643 | 11822 | 17427 | _ | 26497 | 3571 | 32102 | 38599 | 5571 | 76433 | 105095 | 48917 | 87134 | 103694 |
High reliable | 525 | 764 | 1165 | 1962 | 3583 | 5334 | 6306 | 7643 | 11822 | 21000 | 21096 | 24380 | 25478 | 33885 | 44566 | 70063 | 85978 | 40764 | 79873 | 88280 |
Recommended parameters of single-screw extruder machine reduction gearbox(Optional) | ||||||||
Type | Spec. | Power/Kw | Speed-Input | Speed-Output | Load torque/N.m | Axial force/KN | Screw diameter | Length-Diameter Ratio |
ZLYJ | 112-8 | 5.5 | 800 | 100 | 525 | 35 | less than 35 | 25:1 |
113-8 | 6 | 800 | 100 | 764 | 39 | 50 | 25:1 | |
146-10 | 11 | 1000 | 100 | 1050 | 54 | 55 | 25:1 | |
173-10 | 18.5 | 900 | 90 | 1962 | 110 | 65 | 25:1 | |
200-12.5 | 30 | 1000 | 80 | 3581 | 155 | 75 | 25:1 | |
225-12.5 | 45 | 1000 | 80 | 5371 | 180 | 90 | 25:1 | |
250-16 | 55 | 1120 | 70 | 7503 | 192 | 105 | 25:1 | |
280-16 | 75 | 960 | 60 | 7643 | 258 | 110 | 25:1 | |
315-16 | 85 | 960 | 60 | 13528 | 287 | 120 | 25:1 | |
330-16 | 110 | 960 | 60 | 17528 | 360 | 135 | 25:1 | |
375-16 | 132 | 960 | 60 | 21008 | 390 | 150 | 25:1 | |
395-16 | 185 | 960 | 60 | 29442 | 400 | 160 | 25:1 | |
420-16 | 160/220 | 960 | 60 | 31831 | 430 | 160/170 | ||
450-20 | 213 | 1000 | 60 | 40640 | 500 | 180 | 25:1 | |
500-20 | 220 | 1000 | 50 | 42571 | 550 | 180 | 25:1 | |
560-17 | 440 | 1000 | 50 | 84034 | 700 | 200 | 25:1 | |
630-10 | 540 | 1000 | 50 | 15712 | 770 | 250 | 25:1 | |
ZSYJ | 450-32 | 200 | 1500 | 47 | 4 0571 | 500 | 165 | 25:1 |
560-57 | 220 | 1500 | 26 | 80802 | 700 | 190 | 25:1 |
Company Profile
Zhe jiang yifan gear box group CO., LTD was set up in 1970. It specializes in developing and producing small and medium-sized marine gearboxes, plastic extruder slowdown bins, Z4 DC motors,generators and so on.There are mainly 300 moreproduction equipments,including more than60 big,fine and expensive ones. The area of our company is 110, 000 square meters.There are 350 staff,and 25%of the total number are the middle and senior technical members. Since the venture,we commit toresearching and developing new products,and keeping improving the technology. We pay great attention to the after-salesservice. All of these efforts increase the developing footsteps of our company. We have strong technical strength , sophisticatedprocessing equipments,advanced products detection equipments,and own a complete security system including productsdesigned,mechanical processing,unit assembly,testing before coming out from the factory and after-sales service. Ourproducts have passed the ISO9001 Quality System Certification.
Certifications
Our Advantages
1: High transmission efficiency
2: Smooth operation and low noise
3: Small size and high carrying capacity.
4: Easy to disassemble and easy to install.
FAQ
Q: Are you trading company or manufacturer?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
Q: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
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Application: | Machinery |
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Function: | Speed Reduction |
Layout: | Coaxial |
Hardness: | Hardened Tooth Surface |
Installation: | Horizontal Type |
Step: | Double-Step |
Samples: |
US$ 500/Piece
1 Piece(Min.Order) | |
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Self-Locking Properties in a Worm Gearbox
Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.
The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.
This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.
However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.
When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.
Energy Efficiency of a Worm Gearbox: What to Expect
The energy efficiency of a worm gearbox is an important factor to consider when evaluating its performance. Here’s what you can expect in terms of energy efficiency:
- Typical Efficiency Range: Worm gearboxes are known for their compact size and high gear reduction capabilities, but they can exhibit lower energy efficiency compared to other types of gearboxes. The efficiency of a worm gearbox typically falls in the range of 50% to 90%, depending on various factors such as design, manufacturing quality, lubrication, and load conditions.
- Inherent Losses: Worm gearboxes inherently involve sliding contact between the worm and worm wheel. This sliding contact generates friction, leading to energy losses in the form of heat. The sliding action also contributes to lower efficiency when compared to gearboxes with rolling contact.
- Helical-Worm Design: Some manufacturers offer helical-worm gearbox designs that combine elements of helical and worm gearing. These designs aim to improve efficiency by incorporating helical gears in the reduction stage, which can lead to higher efficiency compared to traditional worm gearboxes.
- Lubrication: Proper lubrication plays a significant role in minimizing friction and improving energy efficiency. Using high-quality lubricants and ensuring the gearbox is adequately lubricated can help reduce losses due to friction.
- Application Considerations: While worm gearboxes might have lower energy efficiency compared to other types of gearboxes, they still offer advantages in terms of compactness, high torque transmission, and simplicity. Therefore, the decision to use a worm gearbox should consider the specific requirements of the application, including the trade-off between energy efficiency and other performance factors.
When selecting a worm gearbox, it’s essential to consider the trade-offs between energy efficiency, torque transmission, gearbox size, and the specific needs of the application. Regular maintenance, proper lubrication, and selecting a well-designed gearbox can contribute to achieving the best possible energy efficiency within the limitations of worm gearbox technology.
Types of Worm Gear Configurations and Their Uses
Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:
- Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
- Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
- Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
- Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
- Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
- Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.
Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.
editor by CX 2024-03-08