Umbrella gear elevators are divided into umbrella gear screw elevators and ball elevators. Compared with worm gear screw elevators, their outstanding feature is the efficiency of useHigh rateThe reduction ratio is easy to adjust. Simultaneously, it has convenient installation and use,Small size, no noise, light weight, wide range of power sources, multiple functions, and high reliability. The product has self-locking function,The elevation or propulsion height can be accurately controlled according to the program. Umbrella gear elevators come in various structural forms,Can be customized according to customer needs.
SNLThe main feature of the screw lift compared to the worm gear screw lift is its efficiency in useHigh rateEasy to adjust the reduction ratio, convenient to install and use, and small in size lightweight Wide range of power sources noiseless feature-rich Characteristics of high reliability. This series of products has self-locking function, which can accurately control and adjust the lifting or pushing height according to the program. There are various structural forms, and the height can be increased by manufacturing according to user requirements.
SNBscrew lift,The characteristic is that the ball nut is placed inside the housing, using ball screws and nuts, made of quenched alloy steel, with a load between the nut and the screw. This rolling action can reduce the friction between the nut and the screw, thereby allowing the load to move smoothly. Due to the improvement of work efficiency and rolling performance, compared with ordinary trapezoidal screw elevators, ball screws can operate at higher speeds or larger working cycles.
High precision screw lift, suitable for the panel factory industry such as stainless steel precision plate and chip manufacturing. It can save space and improve high precision and speed, which can greatly increase production.
The lifespan of the ball screw elevator series products is mainly determined by the lifespan of the ball screw and components such as worm gears and worms; We mainly verify the lifespan of ball screws. Worm gears and worms may experience wear, but their lifespan is generally longer than that of ball screws. This elevator is widely used in high-precision automation equipment in environments with high precision requirements.
The working principle of the ball screw elevator brake is: one set of brake friction pairs is connected to the fixed frame; The other group is connected to the rotating shaft of the mechanism. When the friction pair is in contact and compressed, it produces a braking effect; When the friction pair separates, the braking effect is released and the mechanism can move.
According to the working state, ball screw elevator brakes can generally be divided into normally closed and normally open types.
1Normally closed: When the mechanism is in a non working state, the brake is in a closed braking state; When the mechanism is working, the control mechanism automatically releases the brake first. The lifting and slewing mechanisms of the tower crane are both normally closed.
2Normally open: The brake is usually in a released state, and when braking is required, it is accomplished through mechanical or hydraulic mechanisms. The slewing mechanism of the specialized reducer for tower cranes and construction elevators adopts a normally open type.
According to different constructions, the brakes of ball screw elevators can be divided into the following three categories:
1Belt brake: The brake steel strip wraps around the brake wheel radially to generate braking torque.
2Block brake: Two symmetrically arranged brake pads that radially grip the brake wheel to generate braking torque.
3Disc and cone brakes: Disc and cone metal discs with friction lining are pressed against each other in the axial direction to generate braking torque.
Application scope of ball screw elevator:
1.Execution devices such as lifting, displacement, clamping, and flipping in the production line
2.Equipment and clamping, lifting and flipping devices in metallurgical equipment
3.Lifting machines, flexible fixtures, and welding lifts in the vehicle manufacturing industry
4.The lifting device and solar power generation tracking device for monocrystalline silicon and polycrystalline silicon ingot furnaces in the photovoltaic industry
5.Remote control actuators for aerospace, astronomical telescopes, etc
6.Elevating stage lifting device
7.Various actuators in industries such as shipbuilding, water conservancy, food and storage, casting, woodworking machinery, and food machinery8.The lifting devices on machine tools such as vertical lathes and gantry cranes are suitable for high-speed, high-frequency, and high-performance devices. The main components are precision ball screw pairs and high-precision worm gear pairs.
High efficiency: With only a small driving source, a large driving force can be generated. High speed: Compared to trapezoidal screws, there is a significant increase in speed, allowing for easy and high-speed operation. Long service life: High quality ball screw is used to increase its working life3More than double.
