Tool for testing flexibility of tapered roller main shaft bearing retainer

Abstract

The utility model belongs to the technical field of bearings, and provides a tool for testing flexibility of a tapered roller main shaft bearing retainer. The tool for the trial assembly flexibility of the tapered roller main shaft bearing retainer is provided with an upper ring, a lower ring, a positioning pin and a hexagon socket screw, the upper ring is provided with four unthreaded holes which are in clearance fit with the positioning pins, and is also provided with twelve countersunk slotted holes which are used for mounting inside hexagonal bolts in a matching manner; the lower ring is provided with four blind holes which are in interference fit with the positioning pins and twelve threaded holes which are used for mounting the inside hexagonal bolts in a matched manner; the upper ring and the lower ring are connected through the positioning pins and the hexagon socket screws to form a complete tapered roller main shaft bearing inner ring, trial assembly of the tapered roller main shaft bearing retainer can be carried out, and disassembly of the retainer after trial assembly is facilitated. According to the utility model, the trial assembly of the tapered roller main shaft bearing retainer of a specific model can be effectively carried out, and qualified retainers meeting the use requirements can be screened out.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, and in particular relates to a flexible tool for trial assembly of a retainer of a tapered roller main shaft bearing, which is suitable for wind power tapered roller main shaft bearings. Background Art

[0002] With the continuous development of the wind power industry, the power of wind turbines continues to increase. Wind turbine bearings are one of the indispensable components of wind turbines. The main shaft bearings are responsible for supporting and transmitting loads, and often need to withstand loads of different directions and sizes during operation. Therefore, the processing and assembly requirements of the main shaft bearings are quite strict. Among them, the processing and assembly of tapered roller main shaft bearings are extremely difficult, and the assembly flexibility of the cage is crucial. If the cage gets stuck, the roller will be unable to rotate, which will directly affect the support and transmission of the main shaft bearing load, and may even cause failure. Utility Model Content

[0003] In order to overcome the above technical problems, the purpose of the utility model is to provide a tool for the flexible trial assembly of a tapered roller spindle bearing retainer.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A tooling for flexible trial assembly of a tapered roller spindle bearing retainer, the tooling comprising an upper ring and a lower ring; the outer surface of the upper ring comprises a notch, and the outer surface of the lower ring comprises a notch; the notch of the upper ring and the notch of the lower ring together constitute a groove for cooperating with the tapered roller; the upper ring and the lower ring are connected and positioned by a plurality of circumferentially distributed positioning pins, and are fixedly coupled by a plurality of circumferentially distributed hexagon socket bolts, thereby fixing the upper ring and the lower ring in connection, thereby forming a detachable tooling.

[0006] The upper ring has a plurality of light holes for gap matching with the positioning pins, and also has countersunk slot holes for matching and installing the hexagon socket bolts.

[0007] The lower ring has a plurality of blind holes for interference fit of the positioning pins, and also has threaded holes for fitting the hexagon socket bolts.

[0008] The utility model proposes a tool for testing the flexibility of tapered roller spindle bearing retainers. By adopting the above technical solution, tapered roller spindle bearing retainers can be effectively tested and retainers with qualified flexibility and meeting usage requirements can be screened out. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional view of the present invention.

[0010] Figure 2 This is a top view of the positioning pin and hexagon socket bolt of the utility model.

[0011] FIG3 is a cross-sectional schematic diagram of the test cage flexibility operating state of the present invention.

[0012] In the figure: 1, upper ring 2, lower ring 3, positioning pin 4, hexagon socket bolt 5, light hole

[0013] 6. Blind hole 7. Countersunk slot hole 8. Threaded hole. DETAILED DESCRIPTION

[0014] The present invention will be described with reference to the accompanying drawings and specific examples:

[0015] like Figure 1 、 Figure 2 The utility model is shown in the figure. The utility model is used to test the flexibility of the retainer of a tapered roller spindle bearing. The utility model includes an upper ring 1, a lower ring 2, locating pins 3, and hexagon socket bolts 4. The upper ring 1 has four clear holes 5 for the locating pins to fit with clearance, and twelve countersunk slots 7 for the hexagon socket bolts 4. The lower ring 2 has four blind holes 6 for the locating pins to fit with interference, and twelve threaded holes 8 for the hexagon socket bolts. After the four locating pins are hammered into the four blind holes 6 of the lower ring 2, the four clear holes 5 of the upper ring 1 are aligned with the four locating pins 3, and the upper and lower rings are joined. The twelve hexagon socket bolts 4 are then placed in the twelve countersunk slots 7 of the upper ring 1 and screwed into the twelve threaded holes of the lower ring 2. After tightening, the retainer to be tested is assembled. The retainer is then heated, assembled with the rollers, and slowly placed into the tooling. After the retainer cools, the flexibility test is performed during a test run. After the inspection is completed, loosen the twelve hexagon socket bolts 4, and then separate the upper ring 1 from the lower ring 2, and the inspected cage can be safely removed.

[0016] By using the utility model, the trial assembly flexibility of the tapered roller spindle bearing cage can be effectively tested during assembly, qualified cages can be screened out, and the operational flexibility of the tapered roller spindle bearing can be guaranteed.

Claims

1. A tool for flexible trial assembly of a tapered roller spindle bearing retainer, characterized by: The tooling comprises an upper ring and a lower ring; the outer surface of the upper ring has a notch, and the outer surface of the lower ring has a notch; the notch of the upper ring and the notch of the lower ring together constitute a groove for cooperating with the tapered roller; the upper ring and the lower ring are connected and positioned by a plurality of positioning pins evenly distributed along the circumference, and are fixedly connected by a plurality of hexagon socket bolts evenly distributed along the circumference, so that the upper ring and the lower ring are fixedly connected to form a detachable tooling.

2. A tool for flexible trial assembly of a tapered roller spindle bearing retainer according to claim 1, characterized in that: The upper ring has a plurality of light holes for gap matching with the positioning pins, and also has countersunk slot holes for matching and installing the hexagon socket bolts.

3. A tool for flexible trial assembly of a tapered roller spindle bearing retainer according to claim 1, characterized in that: The lower ring has a plurality of blind holes for interference fit of the positioning pins, and also has threaded holes for fitting the hexagon socket bolts.

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