China factory Worm Gear with Electric Motors for Manlift Platforms 9inch with Great quality

Product Description

Slewing Drive is also called slewing gear, worm gear, worm drive, rotary drive axle, rotary drive vice, slew drive, worm gear reducer and rotary drive unit. At present the majority of such devices are caller Slewing Drive.

Technical parameter for 9 inch slew drives
1. Type: 9inch slew drives
2. Self-locking gears: Yes
3. Rated output torque: 7.3kn-m
4. Tilting moment torque: 33.9kn-m
5. Static load rating(axial): 338
6. Static load rating(radial): 138
7. Dynamic load rating(axial): 81
8. Dynamic load rating(radial): 71
9. Gear Ratio: 61: 1
10. Weight: 50kgs
11. Delivery time: 30days

Here is onene of the biggest manlift platforms. With a maximum platform height of 57 m (187 ft) it is the only platform in its class outreaching 43 m (141 ft) to the side – a world record!
How this can be achieved? The solution is the patented turntable! And CHINAMFG is supplying the 2 vital Ball Slewing Rings and a Slew Drive as a drive unit!

Detailed technical data please kindly contact us directly.

Slewing drive introduction
1. Introduction of CHINAMFG slewing drive

LYHY Slewing Drive movement can reduce power consumption, since the security role. In addition to the field of use in the daily solar power systems are usually used for Special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc…The Slewing Drive in the solar photovoltaic industry, the general configuration DC planetary reduction motor or AC geared motors; Main configuration of the hydraulic motor as a power-driven construction machinery
LYHY Slewing Drive principle of the large transmission ratio of the deceleration device to transmit motion and power between the 2 axes staggered in space. The Slewing Drive transmission is usually the case of the main components of the worm and wheel bearings, shell, and the power source
As the core component of turntable bearings, can withstand the axial load, radial load and overturning moment.

2. Structure
Slewing drive can be divided into 2 different structures as per different applications.
Light load slewing drive
Heavy load slewing drive
The dimensions of slewing drives include 3 inch, 5 inch, 7 inch, 9 inch, 12 inch, 14 inch, 17 inch, 21 inch and 25 inch.

3. Features:
Slewing drive is a special bearing. And a slewing drive usually consist of slewing bearing, worm shaft, housing, bearing, motor and so on. Motor drive the worm shaft, the outer ring of slewing bearing will rotate, the outer ring output the torque through flange while the inner ring of slewing bearing is fixed in housing.
LYHY Slewing Drive and rotary products, compared with the ease of installation, ease of maintenance, Installation space savings advantages to a greater extent.

4. Application:
Slewing drives are widely used in aerospace area, solar power systems, wind turbines, satellite broadcasting system, and engineering machinery like truck cranes, and man lifts, etc. Recently years, it has been prosperously used in photovoltaic power generation systems, special vehicle, heavy-duty flat-panel truck, container cranes, truck mounted crane, automobile crane and aerial vehicles, cranes, gantry cranes, small wind power stations, space communications, satellite receiver, etc.

Model Rated output torque /KN-m Tilting Moment torque /KN-m Load /KN Gear ratio Self-locking gears Boundary dimensions (mm) Weight (KG)
Static load rating, axial Static load rating,radial Dynamic load rating, axial Dynamic load rating,radial L L1 L2 L3 H2 H3 H4 ΦD ΦD1 ΦD2 ΦD3 ΦD4 ΦD5 n1-Y n1-X H H1
3″ 0.2 0.5 30 16.6 9.6 8.4 62:1 yes 346 153 114 80   14.5 60.5 125 100   100   126 6-M10 6-M10 190 109 12
5″ 0.3 0.8 76 22.6 13.8 11.8 62:1 yes 361 168 128 93.7 24.6 7 38 161 135 103.5 70 50 120 6-M10 7-M10 219 79 18
7″ 1 13.5 133 53 32 28 73:1 yes 398 182 166 132.7 23.4 4.3 42.5 237.5 203.2 163 120.6 98 145 8-M12 10-M12 295 81 23
9″ 7.3 33.9 338 135 81 71 61:1 yes 546 314 239 174.1 29 4.4 54.5 316 270 222.5 175 145 204 16-M16 15-M16 411 108 50
12″ 9.2 54.3 475 190 114 100 78:1 yes 556 324 285 220 27 4.4 58.5 401.5 358 308.5 259 229 289 18-M16 19-M16 500 110.5 60
14″ 10.5 67.8 555 222 133 117 85:1 yes 547 330 303 238 28 3.5 59 435.5 390 342.5 295 265 325 18-M16 23-M16 530 110 73
17″ 14.5 135.6 975 390 235 205 102:1 yes 555 338 340 275.3 26 4.6 66 522 479.4 425.5 365.1 324 406 20-M16 20-M16 615 126 110
21″ 20.2 203 1598 640 385 335 125:1 yes 678 461 398 333 3.3 4.5 76 616 584.2 525.5 466.7 431.8 532 36-M20 35-M20 732 136.5 158
25″ 22.5 271 2360 945 590 470 150:1 Yes 678 461 467 401.8 6.2 4.5 78.2 744 675 620 585 512 628.5 36-M20 35-M20 863 133.2 230

Payment: Tt,LC
Testing: in House
Custom Design: Available
Self Locking Gears: Yes
Application: Manlift Platforms
Size: 7 Inch
Samples:
US$ 520/Piece
1 Piece(Min.Order)

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Customization:
Available

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worm gear

What lubrication is required for a worm gear?

The lubrication requirements for a worm gear system are crucial to ensure smooth operation, reduce friction, prevent wear, and extend the lifespan of the gears. The specific lubrication needed may vary depending on factors such as the application, operating conditions, gear materials, and manufacturer recommendations. Here are some key considerations regarding lubrication for a worm gear:

  • Lubricant selection: Choose a lubricant specifically designed for gear applications, taking into account factors such as load, speed, temperature, and environment. Common lubricant types for worm gears include mineral oils, synthetic oils, and greases. Consult the gear manufacturer’s recommendations or industry standards to determine the appropriate lubricant type and viscosity grade.
  • Viscosity: The lubricant viscosity is critical for effective lubrication. The viscosity should be selected based on the operating conditions and gear design parameters. Higher loads and slower speeds typically require higher viscosity lubricants to ensure sufficient film thickness and protection. Conversely, lower viscosity lubricants may be suitable for lighter loads and higher speeds to minimize power losses.
  • Lubrication method: The lubrication method can vary depending on the gear system design. Some worm gears have oil sumps or reservoirs that allow for oil bath lubrication, where the gears are partially submerged in a lubricant pool. Other systems may require periodic oil application or greasing. Follow the gear manufacturer’s guidelines for the appropriate lubrication method, frequency, and quantity.
  • Temperature considerations: Worm gear systems may encounter a wide range of temperatures during operation. Ensure that the selected lubricant can withstand the anticipated temperature extremes without significant degradation or viscosity changes. Extreme temperatures may require specialized high-temperature or low-temperature lubricants to maintain proper lubrication performance.
  • Maintenance and monitoring: Regular maintenance and monitoring of the lubrication are essential for optimal gear performance. Periodically inspect the lubricant condition, including its cleanliness, viscosity, and contamination levels. Monitor operating temperatures and perform oil analysis if necessary. Replace the lubricant at recommended intervals or if signs of degradation or contamination are observed.

It’s important to note that the lubrication requirements may vary for different worm gear applications, such as automotive, industrial machinery, or marine systems. Additionally, environmental factors such as dust, moisture, or chemical exposure should be considered when selecting a lubricant and establishing a lubrication maintenance plan.

Always refer to the gear manufacturer’s recommendations and guidelines for the specific lubrication requirements of your worm gear system. Adhering to proper lubrication practices helps ensure smooth and reliable operation, minimizes wear, and maximizes the gear system’s longevity.

worm gear

How do you address noise and vibration issues in a worm gear system?

Noise and vibration issues can arise in a worm gear system due to various factors such as misalignment, improper lubrication, gear wear, or resonance. Addressing these issues is important to ensure smooth and quiet operation of the system. Here’s a detailed explanation of how to address noise and vibration issues in a worm gear system:

1. Misalignment correction: Misalignment between the worm and the worm wheel can cause noise and vibration. Ensuring proper alignment of the gears by adjusting their positions and alignment tolerances can help reduce these issues. Precise alignment minimizes tooth contact errors and improves the meshing efficiency, resulting in reduced noise and vibration levels.

2. Lubrication optimization: Inadequate or improper lubrication can lead to increased friction and wear, resulting in noise and vibration. Using the correct lubricant with the appropriate viscosity and additives, and ensuring proper lubrication intervals, can help reduce friction and dampen vibrations. Regular lubricant analysis and replenishment can also prevent excessive wear and maintain optimal performance.

3. Gear inspection and replacement: Wear and damage to the gear teeth can contribute to noise and vibration problems. Regular inspection of the worm gear system allows for early detection of any worn or damaged teeth. Timely replacement of worn gears or damaged components helps maintain the integrity of the gear mesh and reduces noise and vibration levels.

4. Noise reduction measures: Various noise reduction measures can be implemented to minimize noise in a worm gear system. These include using noise-dampening materials or coatings, adding sound insulation or vibration-absorbing pads to the housing, and incorporating noise-reducing features in the gear design, such as profile modifications or helical teeth. These measures help attenuate noise and vibration transmission and improve overall system performance.

5. Resonance mitigation: Resonance, which occurs when the natural frequency of the system matches the excitation frequency, can amplify noise and vibration. To mitigate resonance, design modifications such as changing gear stiffness, altering the system’s natural frequencies, or adding damping elements can be considered. Analytical tools like finite element analysis (FEA) can help identify resonant frequencies and guide the design changes to reduce vibration and noise.

6. Isolation and damping: Isolation and damping techniques can be employed to minimize noise and vibration transmission to the surrounding structures. This can involve using resilient mounts or isolators to separate the gear system from the rest of the equipment or incorporating damping materials or devices within the gear housing to absorb vibrations and reduce noise propagation.

7. Tightening and securing: Loose or improperly tightened components can generate noise and vibration. Ensuring that all fasteners, bearings, and other components are properly tightened and secured eliminates sources of vibration and reduces noise. Regular inspections and maintenance should include checking for loose or worn-out parts and addressing them promptly.

Addressing noise and vibration issues in a worm gear system often requires a systematic approach that considers multiple factors. The specific measures employed may vary depending on the nature of the problem, the operating conditions, and the desired performance objectives. Collaborating with experts in gear design, vibration analysis, or noise control can be beneficial in identifying and implementing effective solutions.

worm gear

What are the benefits of using a worm gear mechanism?

Using a worm gear mechanism offers several benefits in various applications. Here are some of the advantages:

  • High Gear Reduction: Worm gears provide high gear reduction ratios, allowing for significant speed reduction and torque multiplication. This makes them suitable for applications where a small input speed or high torque output is required.
  • Compact Design: Worm gears have a compact design, with the worm and worm wheel positioned at right angles to each other. This makes them space-efficient and suitable for applications where size and weight limitations exist.
  • Self-Locking: Worm gears exhibit a self-locking characteristic due to the angle of the worm’s helical thread. This means that the worm can drive the worm wheel, but the reverse is not true. The self-locking feature allows worm gears to hold position without additional braking mechanisms, making them suitable for applications that require mechanical holding or braking capabilities.
  • Quiet Operation: Worm gear mechanisms are known for their quiet operation. The helical nature of the worm’s thread and the meshing with the worm wheel teeth help reduce noise and vibration, resulting in smoother and quieter performance.
  • Shock Load Resistance: Worm gears are capable of handling moderate to high shock loads due to their inherent design. The sliding action between the worm and worm wheel allows the gear system to absorb and distribute sudden impacts and loads effectively.
  • Versatile Mounting Options: Worm gears can be mounted in various orientations, including horizontal, vertical, and inclined positions, providing flexibility in design and installation.
  • High Torque Transmission: The design of worm gears allows for efficient transmission of high torque. This makes them suitable for applications that require heavy-duty torque requirements, such as lifting mechanisms, conveyor systems, and machine tools.
  • Simple Lubrication: Worm gears typically require lubrication to reduce friction and wear. However, compared to some other gear types, worm gears have relatively simple lubrication requirements due to the sliding action between the worm and worm wheel. Proper lubrication helps extend the lifespan of the gear system and maintain its performance.

These benefits make worm gear mechanisms well-suited for a wide range of applications, including automotive systems, industrial machinery, elevators, robotics, and more. However, it’s important to consider the specific requirements and limitations of each application to ensure the optimal use of worm gears.

China factory Worm Gear with Electric Motors for Manlift Platforms 9inch with Great qualityChina factory Worm Gear with Electric Motors for Manlift Platforms 9inch with Great quality
editor by CX 2023-10-03