Analysis and application of various components of bearing disassembly press
The bearing disassembly press is mainly composed of a hand wheel, a bearing support plate, a slide rail, a drawbar, a lead screw, a support plate frame and the like.
The hand wheel is composed of a handle, a hand wheel, a screw, a key, a nut and the like. In use, insert the front end of the screw into the bearing support plate retaining iron, and rotate the hand wheel to advance or retract the bearing support plate. The bearing support plate is composed of a support plate, a retaining iron and a bolt. The front end of the support plate is stepped, and the thinnest part can be inserted into the gap between the bearing and the fan rotor to block the inner ring of the bearing. The radius of the arc is slightly larger than the radius of the journal, so that the bearing and the journal move relatively, and the radius of the arc of the thicker part Equal to the bearing radius to clamp the bearing. The front end dimensions of the support plate can be determined according to the outer diameter of the bearing and the rotor journal, and the axial clearance between the bearing and the rotor, and a pair of support plates are made for each type of bearing. The slide consists of an upper and a lower slide block, a support plate press plate, a front panel and bolts. It can guide the support plate and transfer the pressure of the support plate to the front panel and the tie rod during operation. The drawbar is connected with the front panel and the bottom plate by a nut to form a stable frame structure, and the length of the drawbar can be adapted to the disassembly and assembly of various fan rotors. It can withstand the tension of the front panel and the bottom plate. The lead screw consists of a screw, a nut, a rocker, a tip, a bottom plate and a bolt. The nut is fixed on the bottom plate, and the tip and the screw can rotate relative to each other, and the angle of the sharp angle is equal to the angle of the central hole of the shaft. It can apply pressure to the rotor shaft end or sleeve of the fan during operation. The support plate frame is composed of a wire mother block, a reinforcing rib and a pull block. The pin and the shaft are fixed on the positioning plate, and the positioning plate is welded to the front panel. It can withstand the pressure of the support plate and can also rotate around the axis.
A suitable support plate is selected according to the specific conditions of the bearing to be disassembled, and is fixed to the support plate frame by pins. Place the fan rotor in the center of the front panel and rock the handwheel so that the support plate clamps the front bearing. Rotate the lead screw, the top end presses the center hole of the rotor shaft end of the fan, and the journal exits from the inner ring of the bearing. After the rotor of the fan rotates 180b, repeat the above action and remove the rear bearing.
For each bearing of different specifications and types, the casing should be machined in advance. The inner diameter of the casing is slightly larger than the outer diameter of the journal. The length of the casing is determined according to the maximum length of the end surface of the fan rotor to the end of the shaft end, and then the length is 20 mm to prevent the tip from hitting the shaft. End face. Firstly, the new bearing is clamped in the middle of the two supporting plates, the rear journal of the fan rotor is aligned with the inner diameter of the bearing, the rotating screw presses the front end face of the shaft, and the rear journal is pressed into the bearing. After pressing in, the bearing fan rotor is fixed, the rotating screw is retracted, the new bearing is inserted into the front journal, and then the sleeve is put on. After adjusting the bearing and the journal concentric, the rotating screw is pressed to press the sleeve, and the sleeve will be before. The bearing is pressed into the journal.
The bearing disassembly press can disassemble bearings of various specifications by replacing the support plate. It can be used horizontally or vertically, and it is easy to move and can be used for unloading large motors.
Product advantages:
1. 100% fresh aluminum alloy 6063-T5, iron containing is less than 2% , sturdy and durable, full thickness 3.0mm.
2. 3 layer PVDF color coating, thickness more than 80 microns, excellent weather resistance, never fade,More upscale appearance.
3. 100% fresh virgin Bayer Polycarbonate Sheet, 30-50 micron anti-UV coating, can withstand 75% ultraviolet light, impact strength is 300 times that of ordinary glass, 10 years warranty.
4. The motor adopts the domestic leading brand and is guaranteed for 10 years.
5. Rugged and novel internal design, 3.0mm thick aluminum alloy profile, 4-10mm high strength impact resistant endurance board, can withstand snow loads of 30 to 45 cm.
6. High anti-aluminum structure provides maximum safety even in strong winds (strongest 12 winds) (34m / s strong wind).
Novel structure and easy installation
7. Packaging, protecting the product during shipping and making it easier to install.
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