Product Description
SWL series skillful manufacture screw reducer:
1.Convenient to adjust
2.Wide range of ratio
3.Easy to install
4.high torque
Application Industries:
Our SWL series screw jacks are widely used in the industries such as metallurgy,mining,hoisting and transportation, electrical power,energy source,constrction and building material,light industry and traffice industry
Product Parameters
Type |
Model |
Screw thread size |
Max |
Max |
Weight without stroke |
Screw weight |
SWL Screw jack |
SWL2.5 |
Tr30*6 |
25 |
25 |
7.3 |
0.45 |
SWL5 |
Tr40*7 |
50 |
50 |
16.2 |
0.82 |
|
SWL10/15 |
Tr58*12 |
100/150 |
99 |
25 |
1.67 |
|
SWL20 |
Tr65*12 |
200 |
166 |
36 |
2.15 |
|
SWL25 |
Tr90*16 |
250 |
250 |
70.5 |
4.15 |
|
SWL35 |
Tr100*18 |
350 |
350 |
87 |
5.20 |
|
SWL50 |
Tr120*20 |
500 |
500 |
420 |
7.45 |
|
SWL100 |
Tr160*23 |
1000 |
1000 |
1571 |
13.6 |
|
SWL120 |
Tr180*25 |
1200 |
1200 |
1350 |
17.3 |
1.Compact structure,Small size.Easy mounting,varied types. Can be applied in 1 unit or multiple units. |
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2.High reliability.Long service life; With the function of ascending,descending,thrusting,overturning |
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3.Wide motivity.It can be drived by electrical motor and manual force. |
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4.It is usually used in low speed situation,widely used in the fields of |
Detailed Photos
PRODUCT SPECIFICATIONS
SWL Series
Swl series worm screw lift is a kind of basic lifting component, which can lift, lower, propel, turn and other functions through the worm drive screw.
Screw jack can be widely used in machinery, metallurgy, construction, chemical, medical, cultural and health, and other industries. Can according to a certain procedure to accurately control the adjustment of the height of ascension or propulsion, can be directly driven by motor or other power, can also be manually. This series of worm screw lift can be self-locking, with the bearing capacity ranging from 2.5 tons to 120 tons, the maximum input speed of 1500 r/min, and the max lifting speed of 2.7 m/min.
Features:
1. Suitable for heavy load, low speed and low frequency;
2. Main components: precision trapezoid screw pair and high precision worm gear pair.
3. Compact design, small volume, light weight, wide drive sources, low noise, easy operation, convenient
maintenance.
4. The trapezoid screw has self-locking function, it can hold up load without braking device when screw stops traveling.
5. The lifting height can be adjusted according to customer requirements.
6. Widely applied in industries such as machinery, metellurgy, construction and hydraulic equipment.
7. Top End: top plate, clevis end, threaded end, plain end, forked head and rod end.
1. screw rod |
2. nut bolt |
3. cover |
4.Skeleton oil seal |
5.Bearing |
6.Worm gear |
7.Oil filling hole |
8.Case |
9.Skeleton oil seal |
10.Cover |
11. nut bolt |
12.Bearing |
13.Skeleton oil seal |
14.Bearing |
15.worm |
16.Flat key |
17.Bearing |
18.Skeleton oil seal |
19.Cover |
20.Nut bolt |
Product Description
MODEL |
|
SWL2.5 |
SWL5 |
SWL10 |
SWL15 |
SWL20 |
SWL25 |
SWL35 |
Maximum lifting force (kN) |
|
25 |
50 |
100 |
150 |
200 |
250 |
350 |
Screw thread size |
|
Tr30*6 |
Tr40*7 |
Tr58*12 |
Tr58*12 |
Tr65*12 |
Tr90*16 |
Tr100*20 |
Maximum tension (kN) |
|
25 |
50 |
99 |
166 |
250 |
350 |
|
Worm gear ratio (mm) |
P |
1/6 |
1/8 |
3/23 |
1/8 |
3/32 |
3/32 |
|
|
M |
1/24 |
1/24 |
1/24 |
1/24 |
1/32 |
1/32 |
|
Worm non rotating stroke (mm) |
P |
1.0 |
0.875 |
1.565 |
1.56 |
1.5 |
1.875 |
|
M |
0.250 |
0.292 |
0.5 |
0.5 |
0.5 |
0.625 |
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Maximum elongation of screw rod under tensile load (mm) |
|
1500 |
2000 |
2500 |
3000 |
3500 |
4000 |
|
Maximum lifting height at maximum pressure load (mm) |
The head of the screw rod is not guided |
250 |
385 |
500 |
400 |
490 |
850 |
820 |
Lead screw head guide |
400 |
770 |
1000 |
800 |
980 |
1700 |
1640 |
|
Worm torque at full load(N.m) |
P |
18 |
39.5 |
119 |
179 |
240 |
366 |
464 |
M |
8.86 |
19.8 |
60 |
90 |
122 |
217 |
253 |
|
efficiency(%) |
P |
22 |
23 |
20.5 |
|
19.5 |
16 |
18 |
M |
11 |
11.5 |
13 |
|
12.8 |
9 |
11 |
|
Weight without stroke(kg) |
|
7.3 |
16.2 |
25 |
|
36 |
70.5 |
87 |
Weight of screw rod per 100mm(kg) |
|
0.45 |
0.82 |
1.67 |
|
2.15 |
4.15 |
5.20 |
SWL Worm Gear Screw Jack Mounting Dimensions
Standard or Nonstandard: | Nonstandard |
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Application: | Textile Machinery, Garment Machinery, Conveyer Equipment, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Power Transmission |
Input Speed: | 8-360rpm |
Gear Material: | Low Carbon High Alloy Steel |
Gearing Arrangement: | Worm |
Mounting Position: | Horizontal (Foot Mounted) or Vertical (Flange Moun |
Samples: |
US$ 50/Piece
1 Piece(Min.Order) | |
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Can worm gears be used in precision manufacturing equipment?
Yes, worm gears can be used in precision manufacturing equipment. Here’s a detailed explanation of their use in precision manufacturing:
1. Precision Motion Control: Worm gears can provide precise motion control in manufacturing equipment. Their design allows for high gear ratios, which enables fine adjustments and precise positioning. This is particularly useful in applications where accurate and repeatable movement is required, such as CNC machines, robotic arms, and coordinate measuring machines (CMMs).
2. Load Holding and Backdriving Prevention: Worm gears have a self-locking characteristic, meaning they can hold loads in position without the need for additional brakes or clutches. This feature is advantageous in precision manufacturing equipment where holding a position is critical. The self-locking property also helps prevent backdriving, ensuring stability and accuracy during operation.
3. Compact Design: Worm gears have a compact design, which can be beneficial in space-constrained manufacturing equipment. Their worm and worm wheel configuration allows for a compact footprint, making them suitable for applications where size limitations exist.
4. High Torque Transmission: Worm gears can transmit high torque, making them suitable for heavy-duty precision manufacturing equipment. The meshing of the worm and worm wheel generates a large contact area, enabling efficient power transfer and load handling capabilities.
5. Reduced Noise and Vibration: Worm gears operate with a sliding motion rather than a rolling motion, resulting in reduced noise and vibration levels. This characteristic is advantageous in precision manufacturing equipment, as it helps maintain a quieter working environment and minimizes potential disturbances that could affect the precision of the manufacturing process.
6. Lubrication and Maintenance: Proper lubrication is crucial for the efficient and reliable operation of worm gears in precision manufacturing equipment. Lubricants help reduce friction and wear between the gear teeth, ensuring smooth and accurate motion. Regular maintenance and lubrication schedules should be followed to optimize gear performance and extend their service life.
While worm gears offer several advantages in precision manufacturing equipment, it’s important to consider the specific requirements of the application. Factors such as gear ratio, efficiency, backlash, and operating conditions should be carefully evaluated to ensure that worm gears are the appropriate choice for achieving the desired precision and performance.
Overall, worm gears can be successfully utilized in precision manufacturing equipment, providing precise motion control, load holding capabilities, compactness, and high torque transmission. When properly selected, installed, and maintained, worm gears can contribute to the accuracy, reliability, and efficiency of precision manufacturing processes.
What are the potential challenges in designing and manufacturing worm gears?
Designing and manufacturing worm gears can present several challenges due to their unique characteristics and operating conditions. Here’s a detailed explanation of the potential challenges involved:
- Complex geometry: Worm gears have complex geometry with helical threads on the worm shaft and corresponding teeth on the worm wheel. Designing the precise geometry of the gear teeth, including the helix angle, lead angle, and tooth profile, requires careful analysis and calculation to ensure proper meshing and efficient power transmission.
- Gear materials and heat treatment: Selecting suitable materials for worm gears is critical to ensure strength, wear resistance, and durability. The materials must have good friction and wear properties, as well as the ability to withstand the sliding and rolling contact between the worm and the worm wheel. Additionally, heat treatment processes such as carburizing or induction hardening may be necessary to enhance the gear’s surface hardness and improve its load-carrying capacity.
- Lubrication and cooling: Worm gears operate under high contact pressures and sliding velocities, resulting in significant heat generation and lubrication challenges. Proper lubrication is crucial to reduce friction, wear, and heat buildup. Ensuring effective lubricant distribution to all contact surfaces, managing lubricant temperature, and providing adequate cooling mechanisms are important considerations in worm gear design and manufacturing.
- Backlash control: Controlling backlash, which is the clearance between the worm and the worm wheel, is crucial for precise motion control and positional accuracy. Designing the gear teeth and adjusting the clearances to minimize backlash while maintaining proper tooth engagement is a challenge that requires careful consideration of factors such as gear geometry, tolerances, and manufacturing processes.
- Manufacturing accuracy: Achieving the required manufacturing accuracy in worm gears can be challenging due to their complex geometry and tight tolerances. The accurate machining of gear teeth, maintaining proper tooth profiles, and achieving the desired surface finish require advanced machining techniques, specialized tools, and skilled operators.
- Noise and vibration: Worm gears can generate noise and vibration due to the sliding contact between the gear teeth. Designing the gear geometry, tooth profiles, and surface finishes to minimize noise and vibration is a challenge. Additionally, the selection of appropriate materials, lubrication methods, and gear housing design can help reduce noise and vibration levels.
- Efficiency and power loss: Worm gears inherently have lower efficiency compared to other types of gear systems due to the sliding contact and high gear ratios. Minimizing power loss and improving efficiency through optimized gear design, material selection, lubrication, and manufacturing accuracy is a challenge that requires careful balancing of various factors.
- Wear and fatigue: Worm gears are subjected to high contact stresses and cyclic loading, which can lead to wear, pitting, and fatigue failure. Designing the gear teeth for proper load distribution, selecting appropriate materials, and applying suitable surface treatments or coatings are essential to mitigate wear and fatigue issues.
- Cost considerations: Designing and manufacturing worm gears can be cost-intensive due to the complexity of the gear geometry, material requirements, and precision manufacturing processes. Balancing performance requirements with cost considerations is a challenge that requires careful evaluation of the gear’s intended application, performance expectations, and budget constraints.
Addressing these challenges requires a comprehensive understanding of gear design principles, manufacturing processes, material science, and lubrication technologies. Collaboration between design engineers, manufacturing experts, and material specialists is often necessary to overcome these challenges and ensure the successful design and production of high-quality worm gears.
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.
editor by CX 2023-09-28