China Custom Linear Manual Mechanical Landing Lifter Reducer Electric Worm Bevel Gear Lift Screw Jack Ball Screw Jack top gear

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
lifting strength
kN

Max
pull force
kN

Weight without stroke
kg

Screw weight
per 100mm

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.

2.High reliability.Long service life; With the function of   ascending,descending,thrusting,overturning

3.Wide motivity.It can be drived by  electrical motor and manual force.

4.It is usually used in low speed situation,widely used in the fields of
metallurgy,mechanical,construction,chemical,irrigation works,mediat treatment.

 

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

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
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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Request Sample

screw gear

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

Noise and vibration issues in a screw gear system can affect its performance, efficiency, and overall reliability. Addressing these issues is crucial to ensure smooth and quiet operation. Here’s a detailed explanation of how to address noise and vibration issues in a screw gear system:

  • Gear Design: The design of the screw gear system plays a significant role in minimizing noise and vibration. Proper gear tooth profile and geometry can help reduce meshing impact and ensure smooth engagement between the worm gear and the worm wheel. The selection of appropriate gear materials and surface finishes can also influence noise and vibration levels.
  • Gear Quality: High-quality manufacturing processes are essential to minimize noise and vibration in a screw gear system. Precise machining, grinding, and finishing techniques can help achieve accurate gear tooth profiles and reduce tooth surface irregularities. Using high-quality materials with appropriate hardness and strength can also contribute to smoother gear operation and reduced noise levels.
  • Lubrication: Adequate lubrication is crucial for reducing friction, wear, and noise in a screw gear system. Proper lubricant selection, considering factors such as viscosity and additives, can help minimize contact stresses and dampen vibrations. Regular lubricant maintenance, including monitoring oil levels and contamination, is necessary to ensure optimal performance and noise reduction.
  • Mounting and Alignment: Proper mounting and alignment of the screw gear system are essential to minimize noise and vibration. Misalignment or improper installation can cause uneven loading, increased friction, and excessive wear, leading to noise generation. Ensuring accurate alignment and proper mounting techniques, such as using precision shims and torque specifications, can significantly reduce noise and vibration levels.
  • Isolation and Damping: Implementing effective isolation and damping measures can help mitigate noise and vibration in a screw gear system. This can include using vibration-damping materials or isolating the system from surrounding structures using resilient mounts or bushings. Adding damping elements, such as rubber or elastomeric coatings, to critical components can also absorb vibrations and reduce noise transmission.
  • Load Distribution: Uneven load distribution can contribute to noise and vibration in a screw gear system. Optimizing the load distribution by adjusting gear parameters, such as the number of threads or the tooth lead angle, can help achieve a more balanced load sharing between the worm gear and the worm wheel. This can minimize tooth stresses and vibrations, resulting in reduced noise levels.
  • Regular Maintenance and Inspection: Ongoing maintenance and inspection are crucial for identifying and addressing potential noise and vibration issues in a screw gear system. Regularly checking for wear, damage, or misalignment, as well as monitoring noise and vibration levels, can help detect and resolve problems before they escalate. Prompt maintenance actions, such as lubricant replacement or gear realignment, can help maintain optimal system performance and reduce noise and vibration.

By implementing these measures, engineers and technicians can effectively address noise and vibration issues in a screw gear system, ensuring quieter operation, improved reliability, and enhanced overall performance.

screw gear

Can screw gears be used in automotive applications?

Yes, screw gears, also known as worm gears, can be used in various automotive applications. While other types of gears, such as spur gears and helical gears, are more commonly found in automotive systems, screw gears offer certain advantages that make them suitable for specific automotive applications. Here’s a detailed explanation of using screw gears in automotive applications:

  • Steering Systems: Screw gears are commonly used in automotive steering systems, particularly in rack and pinion steering systems. The worm gear and worm wheel arrangement provides a compact and efficient means of converting rotational motion into linear motion, allowing for precise and responsive steering control. Screw gears in steering systems can offer enhanced safety, reliability, and ease of operation.
  • Convertible Roof Mechanisms: Screw gears can be utilized in convertible roof mechanisms to facilitate the opening and closing of the roof. The self-locking characteristic of screw gears is advantageous in this application, as it helps to hold the roof securely in place without the need for additional locking mechanisms. Screw gears can provide smooth and controlled operation, ensuring reliable and convenient roof operation in convertible vehicles.
  • Power Seats and Adjustable Pedals: Automotive power seats and adjustable pedals often employ screw gears to enable precise positioning adjustments. The compact design and precise motion control of screw gears make them suitable for these applications. Screw gears can offer smooth and accurate seat adjustments, enhancing comfort and ergonomics for the vehicle occupants.
  • Accessory Drives: Screw gears can be utilized in automotive accessory drives, such as windshield wiper systems and HVAC (Heating, Ventilation, and Air Conditioning) systems. The self-locking feature of screw gears can be beneficial in maintaining the position of the wiper arms or controlling the position of HVAC blend doors. Screw gears can provide reliable and precise motion control for these auxiliary systems.
  • Brake Systems: Screw gears can be employed in certain automotive brake systems, such as parking brake mechanisms. The self-locking property of screw gears can help hold the brake in the engaged position, providing additional safety and preventing unintended movement. Screw gears in brake systems can contribute to reliable parking brake operation and vehicle stability while parked.
  • Electric Vehicle Applications: With the rise of electric vehicles (EVs), screw gears are being considered for various EV applications. They can be used in electric power steering systems, electric vehicle range extenders, and other drivetrain components. Screw gears can provide efficient power transmission and precise control, supporting the performance and functionality of electric vehicles.
  • Other Specific Applications: Screw gears can find application in other specialized automotive systems, depending on the specific requirements. For example, they may be used in adjustable headlight leveling systems, throttle control mechanisms, or other systems that require precise motion control and position holding.

While screw gears may not be as prevalent in automotive applications compared to other gear types, they offer unique characteristics that make them suitable for specific functions. By considering the design requirements, load conditions, and operational parameters, screw gears can be effectively employed in automotive systems to enhance functionality, safety, and user experience.

screw gear

Are there different types of screw gears available?

Yes, there are different types of screw gears available, each with its variations in design and functionality. These variations cater to specific applications and requirements. Here are some of the commonly used types of screw gears:

  • Single-Thread Worm Gears: Single-thread worm gears have a single helical thread on the worm. They provide a relatively higher gear ratio and are commonly used in applications requiring moderate torque and precision positioning. Single-thread worm gears are widely employed in industries such as manufacturing, automotive, and machinery.
  • Multi-Thread Worm Gears: Multi-thread worm gears have multiple helical threads on the worm, typically two or more. The presence of multiple threads increases the contact area and allows for higher torque transmission. Multi-thread worm gears offer higher gear reduction ratios and are suitable for applications requiring greater torque multiplication, such as heavy-duty machinery and high-load lifting systems.
  • Fine-Pitch Worm Gears: Fine-pitch worm gears have a smaller pitch, meaning there are more teeth per unit length of the worm. This design allows for finer control and precise positioning. Fine-pitch worm gears find applications in industries where accurate motion control is critical, such as robotics, automation, and optics.
  • Coarse-Pitch Worm Gears: Coarse-pitch worm gears have a larger pitch, resulting in fewer teeth per unit length of the worm. This design provides higher torque transmission and is suitable for applications requiring heavy-duty power transmission. Coarse-pitch worm gears are commonly used in industries like manufacturing, material handling, and conveyors.
  • Right-Handed and Left-Handed Worm Gears: Screw gears can be classified as right-handed or left-handed based on the direction of the helical thread. In a right-handed worm gear, the helical thread advances in a clockwise direction when viewed from the end of the worm. In a left-handed worm gear, the helical thread advances counterclockwise. The choice between right-handed and left-handed worm gears depends on the specific application and the desired rotational direction.
  • Non-Throated and Throated Worm Gears: Non-throated worm gears have a cylindrical worm without a groove, while throated worm gears have a groove or a notch on the worm. The presence of a throat allows for greater contact between the worm and the worm wheel, increasing the gear meshing efficiency and load-carrying capacity. Throated worm gears are commonly used in applications where higher efficiency and load capacity are required.
  • Self-Locking Worm Gears: Self-locking worm gears are designed to have a high self-locking capability. The helical thread angle and the friction between the worm and the worm wheel prevent the worm wheel from backdriving the worm when the system is at rest. Self-locking worm gears are widely used in applications that require holding a position without the need for additional braking or locking mechanisms, such as elevators, lifts, and positioning systems.

These are some of the different types of screw gears available in the market. The selection of a specific type depends on factors such as torque requirements, gear reduction ratio, precision positioning, load capacity, and self-locking capabilities, among others. Understanding the characteristics and variations of screw gears allows for choosing the most suitable type for a given application.

China Custom Linear Manual Mechanical Landing Lifter Reducer Electric Worm Bevel Gear Lift Screw Jack Ball Screw Jack top gearChina Custom Linear Manual Mechanical Landing Lifter Reducer Electric Worm Bevel Gear Lift Screw Jack Ball Screw Jack top gear
editor by CX 2023-09-06

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