Worm Screw Jack

Relationship between pressure load and lifting height: When the pressure load decreases, the lifting height can be increased accordingly, which shows that the worm gear screw jack has good adaptability and can adjust its working parameters according to different load demands.

Variation of torque, power and rotational speed: Under different loads, the permitted torque, power and rotational speed of worm screw jack are also different, which reflects the flexibility of its design and its ability to adapt to a variety of working conditions.

Adaptability of working environment: Worm screw jack can work in ambient temperatures from -20℃ to +80℃, which shows that it has good environmental adaptability and can operate stably in a wide range of temperatures.

Structure and operation: Worm screw jack are characterized by compact structure and simple operation, as well as easy maintenance, which makes them very practical in various industrial applications.

Auto-locking function: Some types of worm screw jack, such as the JWM type (trapezoidal screw type), have an auto-locking function that allows the load to be maintained even in the absence of a brake, which is useful for applications that require the position to be kept stable.

The working principle of the worm screw jack is that the motor drives the worm gear to rotate, and the spiral teeth of the worm gear are matched with the threads of the screw to realize the lifting and lowering motion.

Worm screw jack is mainly composed of motor, reducer, worm wheel, screw and other components. The motor drives the worm wheel to rotate through the reducer, and the spiral teeth of the worm wheel are closely matched with the threads of the silk rod. When the worm wheel rotates, the silk rod will produce linear movement, so that the rotary motion produced by the motor is converted into vertical lifting and lowering motion through the transmission of the worm wheel and the silk rod. In addition, the guide rail plays a supporting and guiding role to ensure that the table maintains a stable motion trajectory during the lifting and lowering process, avoiding shaking and deviation from the track. Limit switches and safety devices are equipped to control the up and down travel of the elevator to ensure precise control of the elevation height and stop the movement of the elevator in time to protect the safety of the operator and the equipment in case of accidents.

The transmission ratio of worm gear is large, which can realize the effect of deceleration and increasing torque, while the transmission of screw and nut is used to realize mechanical lifting. In practical application, the screw usually adopts the high-speed spinning method which is relatively simple to manufacture and process, while the nut can be designed according to the demand for materials, processing accuracy and other parameters. Through the coordinated work of these components, worm screw jack can realize precise vertical lifting and lowering movements, which are widely used in occasions requiring vertical transportation.

Worm is the main transmission element of worm gear screw jack, its shape is similar to a helix, usually made of high-strength alloy steel. One end of the worm is connected to the drive unit, and the other end is inserted into the worm wheel to engage with it.

The worm gear is the transmission element that meshes with the worm and is similar in shape to a ring gear. The inside of the worm gear has a helical groove that matches the helix of the worm shaft. As the worm rotates, the worm gear moves axially, resulting in a lifting and lowering motion.

The bearings are used to support the parts of the worm gear and worm wheel, and their function is to reduce friction and ensure transmission efficiency. There are two kinds of bearings commonly used in worm gear elevators, namely, rolling bearings and plain bearings.

The case is the shell of worm gear elevator, usually made of cast iron or steel plate. The role of the case is to fix and support the worm gear, worm wheel, bearings and other components, while preventing dust and debris from entering the interior.

The lifting mechanism is the core part of the worm gear elevator, and its main function is to convert the rotary motion of the worm gear into linear motion. The lifting mechanism usually consists of screw, nut, slider and other parts. When the worm wheel rotates, the screw will move along the axial direction and drive the slider to realize the lifting and lowering motion.

1. Load-bearing capacity: The load-bearing capacity of the screw jack is determined according to the actual use demand, which depends on the model, size, material and other factors of the screw jack. The size of load capacity is directly related to the ability of the lift to meet the actual load conditions and avoid the safety risks caused by overloading.

2. Speed requirements: Different application scenarios have different requirements on the speed of the lift. For example, the production line which needs to lift materials quickly should choose the elevator with higher speed.

3.Precision requirements: For some high-precision requirements, such as semiconductor manufacturing industry, need to consider the precision of the worm screw jack, and select the appropriate materials and processing technology.

4. Safety: The design should consider a variety of safety protection measures, such as overload protection, fall prevention, etc., but also need to consider the safety of the operator, such as the installation of protective railings and safety doors.

5. Maintenance: Need to consider maintenance issues, such as whether the equipment is easy to clean, repair and replacement parts, etc., which will directly affect the service life of the equipment and operating costs.

6. Use scenarios: Clear use scenarios, including the characteristics of the working environment, such as temperature, humidity, corrosivity, etc.. For example, in a humid or corrosive environment, you need to choose lifts with special protective coatings.

7. Load capacity: Select the appropriate load capacity range according to the actual load situation to ensure that the lift can run stably.

8. Control mode: According to the actual production requirements to determine the required control mode, such as manual, electric, pneumatic, etc.

9. Brand and quality: Choose well-known brands and equipment with good reputation to ensure the performance and quality of the equipment.

10. Installation and maintenance: Pay attention to the installation and maintenance of worm gear elevator is very important for the normal operation and service life of the equipment.

Dezhou Jinmai Machinery Equipment Co., Ltd. is one of the early manufacturers in the field of transmission equipment in North China, with the development and growth of China's chemical equipment, conveying equipment, mining equipment industry and long-term cooperation with major equipment manufacturing research units, relying on their own innovative product technology research and development, the company's business continues to grow and provide excellence for many large and medium-sized equipment manufacturing enterprises in China Quality transmission equipment and services.

The company has all kinds of advanced production equipment and inspection equipment 50 sets, a young design and manufacturing team for product quality escort, has a high reputation in the industry. "Xurui brand" reducer in the selection of materials, materials and processing technology is unequivocal. Since 2018, our company has been implementing the real-name responsibility system for the production of product parts, who produces, who is responsible, effectively improving product quality.