Pleasant LK2125 automatic CNC broach fills the domestic gap
The bearing disassembly press is a versatile tool designed for efficiently removing and installing bearings in various mechanical systems, particularly in fan rotors. It consists of several key components including a hand wheel, a bearing support plate, a slide rail, a drawbar, a lead screw, and a support plate frame. These parts work together to provide controlled pressure and alignment during the disassembly and installation process.
The hand wheel includes a handle, a rotating wheel, a screw, a key, and a nut. When in use, the screw is inserted into the retaining iron of the bearing support plate, and turning the hand wheel allows the support plate to move forward or backward. The bearing support plate itself is made up of a support plate, a retaining iron, and bolts. Its front end is designed with a stepped shape, allowing the thinnest part to fit into the gap between the bearing and the rotor shaft. This design ensures that the inner ring of the bearing is properly blocked, while the thicker part of the plate matches the bearing’s radius to secure it firmly in place.
Each support plate is custom-made based on the outer diameter of the bearing, the rotor’s journal, and the axial clearance between them. A pair of support plates is typically used for each type of bearing to ensure proper alignment and stability. The slide mechanism consists of upper and lower slide blocks, a support plate press plate, a front panel, and bolts. It guides the movement of the support plate and transfers the applied pressure to the front panel and tie rod during operation.
The drawbar connects the front panel and the bottom plate using nuts, forming a stable structure that can be adjusted to accommodate different fan rotor sizes. It provides necessary tension to maintain structural integrity. The lead screw assembly includes a screw, a nut, a rocker, a tip, a bottom plate, and a bolt. The nut is fixed to the bottom plate, while the tip and screw can rotate independently. The sharp angle of the tip is aligned with the central hole of the shaft, enabling precise pressure application to the rotor shaft or sleeve.
The support plate frame comprises a wire mother block, reinforcing ribs, and a pull block. Pins and shafts are fixed to a positioning plate, which is then welded to the front panel. This frame not only withstands the pressure from the support plate but also allows for rotational movement around the axis.
To use the device, a suitable support plate is selected based on the specific bearing being worked on and secured to the support plate frame using pins. The fan rotor is placed in the center of the front panel, and the hand wheel is turned to clamp the front bearing. The lead screw is then rotated, pressing the center hole of the rotor shaft, causing the journal to exit the bearing. After rotating the rotor 180 degrees, the same process is repeated to remove the rear bearing.
For bearings of different specifications, a casing must be machined in advance. The inner diameter of the casing is slightly larger than the journal’s outer diameter, and its length is determined based on the maximum distance from the rotor’s end surface to the shaft end, with an additional 20 mm to prevent contact with the shaft’s end face.
During installation, the new bearing is clamped between two support plates, and the rear journal of the rotor is aligned with the bearing’s inner diameter. The rotating screw presses the front end of the shaft, forcing the rear journal into the bearing. Once installed, the rotor is secured, and the screw is retracted. The new bearing is then inserted into the front journal, followed by the sleeve. After adjusting for concentricity, the screw is pressed again to install the sleeve and fully seat the bearing onto the journal.
This bearing disassembly press is highly adaptable, as it can handle bearings of various sizes by simply replacing the support plate. It can be operated horizontally or vertically, making it easy to transport and ideal for large motor removal tasks. Its modular design and precision engineering make it a valuable tool in maintenance and repair operations.
Pumps And Other Fountain Equipment
Submersible Pumps​
Submersible pumps are the workhorses of many fountain systems, designed to operate while fully submerged in water. Their compact and sealed construction allows them to fit seamlessly into various fountain designs, from small tabletop features to larger garden installations. These pumps are efficient at circulating water, creating gentle flows or more dynamic sprays depending on the model. They often come with adjustable flow rates, enabling users to customize the water display to their liking. Submersible pumps are relatively easy to install and maintain, making them a popular choice for both residential and commercial fountains.​
Centrifugal Pumps​
Centrifugal pumps are commonly used in larger fountain projects where higher water flow and pressure are required. They work by using a rotating impeller to create centrifugal force, which pushes water through the pump and into the fountain system. Unlike submersible pumps, centrifugal pumps are typically installed outside the water source, connected via pipes. They are capable of moving large volumes of water, making them suitable for grand fountains in parks, plazas, or public spaces. These pumps are known for their durability and high performance, but they may require more complex installation and regular maintenance to ensure optimal operation.​
Fountain Nozzles​
Fountain nozzles are essential components that determine the shape and pattern of the water spray. There is a wide variety of nozzles available, each creating a unique effect. For example, jet nozzles produce a straight, powerful stream of water, while fan nozzles create a wide, flat spray resembling a fan. 雾化喷嘴 (Atomizing nozzles) can turn water into a fine mist, adding a mystical touch to the fountain. Some nozzles are designed to rotate, creating dynamic, ever-changing patterns. The choice of nozzle depends on the desired aesthetic of the fountain, as well as factors such as water pressure and flow rate.​
Lighting Systems​
Lighting systems play a crucial role in enhancing the visual appeal of fountains, especially during the evening and night. LED lights are the most commonly used type due to their energy efficiency, long lifespan, and ability to produce a wide range of colors. These lights can be submerged in water, safely illuminating the water sprays and creating stunning visual effects. Many fountain lighting systems come with color-changing capabilities, allowing users to set different moods and themes. They can be synchronized with the water patterns to create a coordinated audio-visual experience, making the fountain a focal point of any space.​
Control Panels​
Control panels are the brains behind the operation of more sophisticated fountain systems. They allow users to control various aspects of the fountain, such as water flow, spray patterns, lighting, and even timing. With a control panel, you can program the fountain to perform specific sequences at certain times, creating a dynamic and engaging display. Some advanced control panels can be operated remotely via a smartphone app, providing convenience and flexibility. They also help in monitoring the performance of the fountain components, alerting users to any issues that may arise, such as pump malfunctions or low water levels.
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