China Professional Worm Gears 9 Inch Used for Truck Cranes Construction Machinery

Product Description

Type: 9 inch slewing drive

Feature:
1. Tooth type: Worm tooth
2. Medium-load slewing drive
3. Drive type: Hydraulic drive
4. Diameter of rotary center: 342mm

Other technical data:
Module: 5
Number of worm shafts: 1
Gear Ratio: 61: 1
Efficiency: 40%
Self-locking gears: YES
Weight: 49kg

Output Torque: 8.5KNm
Backwards Holding Torque: 38.7KNm
Tilting Moment: 33.9KNm
Radial static load rating: 135KN
Axial static load rating: 338KN
Radial dynamic load rating: 71KN
Axial dynamic load rating: 81KN

Detailed technical data please kindly contact us directly.

Slewing drive
1. Introduction of CHINAMFG slewing drive
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.
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.

 Light-load Slewing Drive
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
Heavy-load slewing drive
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″ 0.25 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″ 0.37 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″ 1.3 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″ 9.2 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″ 11.7 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″ 12.7 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″ 18.5 135.6 975 390 235 205 102:1 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″ 29 203 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″ 34 271 2360 945 590 470 150:1 yes 678 461 467 401.8 6.2 4.5 78.2 744 675 820 585 512 628.5 36-M20 35-M20 863 133.2 230

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Feature: Corrosion-Resistant
Step: Double-Step
Layout: Cycloidal
Type: M14 Inch Slewing Drive
Size: 14 Inch
Warranty Period: 1 Year
Samples:
US$ 620/Piece
1 Piece(Min.Order)

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Customization:
Available

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How does the choice of worm wheels affect the overall performance and reliability of gearing systems?

The choice of worm wheels has a significant impact on the overall performance and reliability of gearing systems. Here’s a detailed explanation of how the selection of worm wheels affects these aspects:

  • Material Selection: The choice of material for worm wheels is crucial in determining their performance and reliability. Different materials, such as steel, bronze, or plastic, offer varying levels of strength, durability, and resistance to wear. The selection of the appropriate material should consider factors such as load requirements, operating conditions, and compatibility with other components in the system. Opting for high-quality materials that are suitable for the specific application can enhance the overall performance and reliability of the gearing system.
  • Accuracy and Tolerance: Worm wheels are manufactured with different levels of accuracy and tolerance. Higher precision and tighter tolerances result in improved gear meshing, reduced backlash, and enhanced positional accuracy. The choice of worm wheels with the appropriate accuracy and tolerance level for the application is essential for achieving the desired performance and reliability. In applications where precise motion control, high positional accuracy, or low backlash is critical, selecting worm wheels with superior accuracy can significantly enhance system performance and reliability.
  • Gear Design and Geometry: The design and geometry of worm wheels play a crucial role in determining their performance and reliability. Factors such as tooth profile, helix angle, number of teeth, and tooth surface finish influence the gear meshing characteristics, load distribution, efficiency, and noise levels. Optimal gear design and geometry should be selected based on the specific application requirements and operating conditions. Choosing worm wheels with well-designed gear profiles and appropriate geometric parameters can contribute to smoother operation, efficient power transmission, and improved reliability of the gearing system.
  • Lubrication and Maintenance: The choice of worm wheels can affect the lubrication requirements and maintenance intervals of the gearing system. Some materials or coatings may require specific lubricants or lubrication techniques to ensure proper operation and longevity. Additionally, certain worm wheel designs may have features that facilitate lubricant retention and distribution, improving gear lubrication and reducing wear. Considering the lubrication and maintenance aspects during the selection of worm wheels can enhance the overall performance, efficiency, and reliability of the gearing system.
  • Load Capacity and Efficiency: The load-carrying capacity and efficiency of the gearing system are influenced by the choice of worm wheels. Different worm wheel designs and materials have varying load capacity ratings and efficiency characteristics. Selecting worm wheels that can handle the anticipated loads and provide efficient power transmission helps prevent premature wear, excessive heat generation, and gear failures. Choosing worm wheels with appropriate load capacity and efficiency ratings ensures reliable performance and enhances the overall reliability of the gearing system.
  • Compatibility and System Integration: The choice of worm wheels should consider their compatibility and integration with other components in the gearing system. This includes factors such as shaft sizes, mounting configurations, and interfacing with the worm. Ensuring proper compatibility and integration minimizes alignment issues, reduces stress concentrations, and promotes efficient power transmission. Selecting worm wheels that are specifically designed for compatibility and seamless integration within the system enhances the overall performance, reliability, and longevity of the gearing system.

In summary, the choice of worm wheels significantly impacts the overall performance and reliability of gearing systems. Considerations such as material selection, accuracy and tolerance, gear design and geometry, lubrication and maintenance requirements, load capacity and efficiency, and compatibility with other system components all contribute to the system’s performance and reliability. By carefully selecting worm wheels that meet the specific application requirements and considering these factors, the overall performance and reliability of the gearing system can be optimized.

What factors should be considered when selecting worm wheels for different applications?

When selecting worm wheels for different applications, several factors need to be considered to ensure optimal performance and compatibility. Here’s a detailed explanation of the factors that should be taken into account:

  • Torque Requirement: The torque requirement of the application is a crucial factor in selecting the appropriate worm wheel. Consider the maximum torque that the worm wheel needs to transmit and ensure that the selected worm wheel has a sufficient torque rating to handle the load without excessive wear or failure.
  • Speed Range: The speed range of the application influences the choice of worm wheel. Different worm wheel configurations are suitable for specific speed ranges. For high-speed applications, it may be necessary to consider factors such as tooth design, materials, and lubrication to minimize friction and wear under increased rotational speeds.
  • Load Capacity: Evaluate the expected load on the worm wheel and ensure that the selected worm wheel can handle the specific load without deformation or excessive wear. Factors such as tooth profile, material selection, and the number of threads in the worm wheel contribute to its load-carrying capacity.
  • Space Constraints: Consider the available space for the installation of the worm wheel. Worm wheels come in various sizes, and it’s essential to choose a size that fits within the designated space without compromising performance or interfering with other components of the system.
  • Operating Conditions: Evaluate the operating conditions such as temperature, humidity, and contamination levels. Some applications may require worm wheels with specific material properties to withstand harsh environments or corrosive substances. Consider factors such as corrosion resistance, temperature tolerance, and the need for additional sealing or protection measures.
  • Efficiency Requirements: The desired efficiency of the system is an important consideration. Different worm wheel configurations and materials have varying levels of efficiency. Evaluate the trade-off between efficiency, cost, and other application requirements to select a worm wheel that provides the desired balance of performance and cost-effectiveness.
  • Maintenance and Lubrication: Consider the maintenance requirements and lubrication needs of the worm wheel. Some worm wheels may require periodic lubrication to ensure smooth operation and minimize wear. Evaluate the accessibility of the worm wheel for lubrication and the frequency of maintenance that the application can accommodate.
  • Compatibility: Ensure that the selected worm wheel is compatible with other components of the system, such as the mating worm gear and any associated power transmission elements. Consider factors such as tooth profiles, pitch, backlash control, and the overall system design to ensure proper meshing, alignment, and efficient power transmission.
  • Cost Considerations: Finally, consider the cost implications of the selected worm wheel. Evaluate factors such as material costs, manufacturing complexity, and any additional features or customization required. Balance the desired performance and quality with the available budget to select a worm wheel that meets both technical and financial requirements.

By carefully considering these factors, it is possible to select the most suitable worm wheel for a specific application, ensuring optimal performance, longevity, and efficient power transmission.

Can you provide examples of products or machinery that use worm wheels in their systems?

Yes, there are numerous products and machinery that utilize worm wheels as integral components in their systems. Here are some examples:

  • Elevators: Worm wheels are commonly used in elevator systems to control the vertical movement of the elevator car. The high gear reduction ratio of the worm wheel allows for precise and controlled lifting and lowering of the elevator. The self-locking property of the worm wheel ensures that the elevator remains stationary at each floor, enhancing safety and stability.
  • Conveyors: Conveyors, such as belt conveyors or screw conveyors, often incorporate worm wheels to drive the movement of the conveyor belt or screw. The gear reduction provided by the worm wheel allows for controlled and synchronized material handling in industries such as manufacturing, mining, and logistics.
  • Automotive Applications: Worm wheels are utilized in various automotive applications. For example, power steering systems use worm wheels to convert the rotational motion of the steering wheel into the linear motion required for steering the vehicle. Additionally, some automotive seat adjustment mechanisms and convertible roof systems use worm wheels for precise positioning and control.
  • Machine Tools: Worm wheels are found in machine tools like milling machines, lathes, and grinders. They are often used in the feed mechanisms to control the movement of the workpiece or cutting tool with high precision and accuracy. The high gear reduction ratio of the worm wheel enables fine adjustments of the feed rate and ensures stable and controlled machining operations.
  • Robotics: Worm wheels are employed in various robotic systems for precise motion control. They can be found in robotic arms, grippers, and joints, allowing for accurate positioning and movement. The self-locking property of the worm wheel ensures that the robot maintains its position when not actively driven, providing stability and safety in robotic applications.
  • Positioning Systems: Precision positioning systems, such as linear stages or rotary stages, utilize worm wheels to achieve accurate and repeatable motion. These systems are commonly used in semiconductor manufacturing, optics, microscopy, and other industries where precise positioning is critical. Worm wheels provide the necessary gear reduction and precise control required for precise positioning applications.
  • Gate Operators: Worm wheels are employed in gate operator systems to control the opening and closing of gates, such as in residential or commercial gate automation. The gear reduction provided by the worm wheel allows for controlled and smooth operation of the gate, ensuring security and convenience.
  • Industrial Mixers: Worm wheels are used in industrial mixers and agitators to control the rotational speed and torque applied to the mixing blades. The gear reduction ratio of the worm wheel enables precise control of the mixing process, ensuring efficient and consistent mixing of various substances in industries like chemical processing and food production.

These examples illustrate the wide range of applications where worm wheels are utilized to provide precise motion control, torque management, and reliable performance. Their versatility and ability to control speed, torque, and direction make them valuable components in various products and machinery.

China Professional Worm Gears 9 Inch Used for Truck Cranes Construction Machinery  China Professional Worm Gears 9 Inch Used for Truck Cranes Construction Machinery
editor by CX 2024-03-04