Description du produit
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
Screw Jacks in construction
Often found in climbing mechanism of construction,the screw jacks use physical means to raise and lower loads, which typically range from 5 tons to 30 tons. A screw jack is a common type of mechanical jack, which works via a motor and gearbox by an operator. A screw uses the shape of its threads to raise or lower the load, or a traveling nut does the lifting while the screw turns in place. Mechanical jacks are self-locking(not for ball screw), which means that when power is removed from the jack, the screw stays in place until power resumes. This setup makes mechanical jacks safer than their hydraulic counterparts, because users don’t have to fear a loss of power. The main components of screw jacks are; trapezoidal lifting screw also known as lead screw, worm screw, worm gear and gear housing. A worm screw is rotated manually or by a motor. With the rotation of the worm gear, the lead screw in it moves upwards or downwards linearly. The feed rate of the screw depends on the turning speed, the number of teeth of the gears and the size of the screw pitch. In some models of jackscrews, The lifting screw does not move up and down. It only rotates around its axis. A lifting nut (also known as a travelling nut) moves along the lead screw. The lifting nut of the screw jack is made of bronze to decrease friction.
Paramètres du produit
|
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 |
Photos détaillées
SWL Series worm screw Jack:
1.The elevator is a combination of turbine pair and trapezoid screw rod to complete the lifting and lowering of objects. 2.Compact structure, light weight, safety and reliability, long service life, convenient installation
3.Self-locking function in the static state.
|
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 |
Description du produit
Produits associés
Emballage et expédition
Profil de l'entreprise
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| Standard or Nonstandard: | Nonstandard |
|---|---|
| Application: | Textile Machinery, Garment Machinery, Conveyer Equipment, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car |
| Assistance personnalisée : | OEM, ODM, Obm |
| Nom de marque : | Beiji or Customized |
| Certificate: | ISO9001:2008 |
| Structures: | Worm Gear and Worm |
| Exemples : |
US$ 50/Pièce
1 pièce (commande minimale) | |
|---|
Can you provide examples of machinery that use worm gears?
Worm gears are utilized in various machinery and mechanical systems where precise motion control, high gear reduction ratios, and self-locking capabilities are required. Here are some examples of machinery that commonly use worm gears:
- Elevators: Worm gears are commonly employed in elevator systems to control the vertical movement of the elevator car. The high gear reduction ratio provided by worm gears allows for smooth and controlled lifting and lowering of heavy loads.
- Conveyor systems: Worm gears are used in conveyor systems to drive the movement of belts or chains. The self-locking nature of worm gears helps prevent the conveyor from back-driving when the power is turned off, ensuring that the materials or products being transported stay in place.
- Automotive applications: Worm gears can be found in automotive steering systems. They are often used in the steering gearboxes to convert the rotational motion of the steering wheel into lateral movement of the vehicle’s wheels. Worm gears provide mechanical advantage and precise control for steering operations.
- Milling machines: Worm gears are utilized in milling machines to control the movement of the worktable or the spindle. They offer high torque transmission and accurate positioning, facilitating precise cutting and shaping of materials during milling operations.
- Lifts and hoists: Worm gears are commonly employed in lifting and hoisting equipment, such as cranes and winches. Their high gear reduction ratio allows for the lifting of heavy loads with minimal effort, while the self-locking property prevents the load from descending unintentionally.
- Rotary actuators: Worm gears are used in rotary actuators to convert linear motion into rotary motion. They are employed in various applications, including valve actuators, robotic arms, and indexing mechanisms, where controlled and precise rotational movement is required.
- Packaging machinery: Worm gears find application in packaging machinery, such as filling machines and capping machines. They assist in controlling the movement of conveyor belts, rotating discs, or cam mechanisms, enabling accurate and synchronized packaging operations.
- Printing presses: Worm gears are utilized in printing presses to control the paper feed and the movement of the printing plates. They provide precise and consistent motion, ensuring accurate registration and alignment of the printed images.
These are just a few examples, and worm gears can be found in many other applications, including machine tools, textile machinery, food processing equipment, and more. The unique characteristics of worm gears make them suitable for various industries where motion control, high torque transmission, and self-locking capabilities are essential.
Quelles sont les considérations environnementales liées à l'utilisation d'engrenages à vis sans fin ?
L'utilisation d'engrenages à vis sans fin implique de prendre en compte plusieurs facteurs environnementaux. Voici une explication détaillée de ces facteurs :
- Lubrification: Une lubrification adéquate est essentielle au bon fonctionnement des engrenages à vis sans fin. Les lubrifiants contribuent à réduire le frottement et l'usure entre les dents, ce qui améliore le rendement et prolonge la durée de vie des engrenages. Lors du choix des lubrifiants, il est important de tenir compte de leur impact environnemental. Les lubrifiants écologiques, tels que les lubrifiants biodégradables ou synthétiques à faible toxicité, permettent de minimiser les risques pour l'environnement en cas de fuite ou de déversement accidentel.
- Fuites et contamination : Les systèmes d'engrenages à vis sans fin sont sensibles aux fuites de lubrifiant, susceptibles d'engendrer une pollution environnementale. Il est donc essentiel de veiller à l'étanchéité du carter d'engrenage afin d'éviter toute fuite de lubrifiant dans l'environnement. Des inspections et un entretien réguliers doivent être effectués pour détecter et réparer rapidement toute fuite. Par ailleurs, il convient de prendre des mesures pour empêcher toute contamination du système d'engrenage par des éléments tels que la poussière, les saletés et l'eau, car ces contaminants peuvent dégrader le lubrifiant et affecter les performances de l'engrenage.
- Efficacité énergétique : Les engrenages à vis sans fin, comme tout système de transmission de puissance mécanique, consomment de l'énergie lors de leur fonctionnement. Il est donc essentiel de prendre en compte l'efficacité énergétique lors de la conception et du choix des systèmes d'engrenages à vis sans fin. Une conception optimale des engrenages, un choix judicieux de ces derniers et des pratiques de lubrification efficaces contribuent à réduire la consommation d'énergie et à minimiser l'impact environnemental lié à son utilisation.
- Bruit et vibrations : Les engrenages à vis sans fin peuvent générer du bruit et des vibrations en fonctionnement. Un bruit excessif contribue à la pollution sonore, tandis que des vibrations importantes peuvent endommager les équipements et les structures environnants. Pour atténuer ces effets, il est essentiel de concevoir et de fabriquer des engrenages à vis sans fin présentant de faibles niveaux de bruit et de vibrations. Cela implique une conception soignée des engrenages, une lubrification adéquate et l'utilisation de matériaux ou de mécanismes d'amortissement des vibrations.
- Considérations relatives à la fin de vie : En fin de vie, les composants des engrenages à vis sans fin peuvent nécessiter un remplacement ou un recyclage. L'élimination des engrenages usés doit être effectuée conformément à la réglementation environnementale en vigueur. Dans la mesure du possible, le recyclage ou la réutilisation des composants d'engrenages contribue à réduire les déchets et à minimiser l'impact environnemental lié à leur élimination.
- Réglementations environnementales : Le respect des réglementations et normes environnementales est essentiel lors de l'utilisation d'engrenages à vis sans fin. Différentes régions peuvent avoir des réglementations spécifiques régissant l'utilisation et l'élimination des lubrifiants, des matériaux et des procédés de fabrication associés aux systèmes d'engrenages. Il est important de se tenir informé de ces réglementations et d'en assurer la conformité afin d'éviter tout impact environnemental négatif et toute conséquence juridique.
En tenant compte de ces facteurs environnementaux, il est possible de minimiser l'impact écologique des systèmes d'engrenages à vis sans fin et de promouvoir des pratiques durables pour leur utilisation et leur entretien. Cela inclut le choix de lubrifiants respectueux de l'environnement, la mise en œuvre de procédures d'étanchéité et d'entretien appropriées, l'optimisation de l'efficacité énergétique et le respect des réglementations environnementales en vigueur.
Are there different types of worm gears available?
Yes, there are different types of worm gears available to suit various applications and requirements. Here are some of the commonly used types:
Single Enveloping Worm Gear:
The single enveloping worm gear, also known as a cylindrical worm gear, has cylindrical teeth on the worm wheel that mesh with the helical thread of the worm. The teeth of the worm wheel wrap around the worm in a single enveloping manner. This design provides better contact and load distribution, resulting in higher load-carrying capacity and smoother operation. Single enveloping worm gears are commonly used in heavy-duty applications where high torque transmission is required.
Double Enveloping Worm Gear:
The double enveloping worm gear is a specialized type of worm gear that provides even greater load-carrying capacity compared to the single enveloping design. In a double enveloping worm gear, both the worm and the worm wheel have curved tooth profiles. The teeth of the worm wrap around the worm wheel while the teeth of the worm wheel wrap around the worm. This double enveloping action increases the contact area, improves load distribution, and enhances the gear’s efficiency. Double enveloping worm gears are used in applications that demand high torque and precision, such as aerospace and defense industries.
Non-enveloping Worm Gear:
The non-enveloping worm gear, also known as a non-throated worm gear, has a worm wheel with teeth that do not fully wrap around the worm. Instead, the worm wheel has straight or slightly curved teeth that engage with the helical thread of the worm. Non-enveloping worm gears are simpler in design and less expensive to manufacture compared to enveloping worm gears. They are commonly used in applications with moderate loads and where cost is a consideration.
Self-locking Worm Gear:
Self-locking worm gears are designed with a specific helix angle of the worm’s thread to provide a self-locking effect. This means that when the worm is not actively driving the worm wheel, the worm wheel is prevented from rotating backward and can hold its position securely. Self-locking worm gears find applications in systems where holding position or preventing backdriving is crucial, such as elevators, lifts, and certain industrial machinery.
These are just a few examples of the different types of worm gears available. The choice of worm gear type depends on factors such as the application requirements, load capacity, efficiency, and cost considerations.
editor by Dream 2024-04-19
