A tapered roller bearing

Abstract

The utility model discloses a tapered roller bearing, comprising an outer ring, an inner ring, a retaining frame, rolling elements, and an axial hole. A retaining frame is installed between the outer ring and the inner ring, and a plurality of rolling elements are equidistantly axially connected in the retaining frame. The retaining frame comprises rolling element mounting grooves, rolling axis grooves, oil filling holes, and oil guide channels. A plurality of rolling element mounting grooves are equidistantly arranged on the outer side of the retaining frame, and the axial hole is arranged inside the inner ring. The utility model improves the structure of the retaining frame of the existing tapered roller bearing, enables rapid oiling, improves the wear resistance of the material, and prolongs the service life of the bearing.

Description

Technical Field

[0001] The utility model relates to a tapered roller bearing. Background Art

[0002] When tapered roller bearings are subjected to axial and radial loads, the rollers will roll on the tapered surfaces of the inner and outer rings, thereby supporting and transmitting the loads of the bearings. Due to the design of the tapered surfaces of the inner and outer rings, the bearings can withstand greater radial and axial loads. In addition, tapered roller bearings can also adjust the positions of the inner and outer rings by themselves to adapt to different loads and working conditions.

[0003] The tapered roller bearings currently in use are inconvenient to oil, and their wear resistance is greatly limited by the material, so there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a tapered roller bearing to solve the above technical problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tapered roller bearing comprises an outer ring, an inner ring, a cage, rolling elements and an axial hole. The cage is installed between the outer ring and the inner ring, a plurality of rolling elements are equidistantly connected to the cage, and the axial hole is opened inside the inner ring.

[0007] Based on the above technical solution, the retaining frame includes a rolling element mounting groove, a rolling shaft groove, an oil filling hole, and an oil guide channel. A plurality of the rolling element mounting grooves are equidistantly arranged on the outside of the retaining frame, two of the rolling shaft grooves are respectively arranged on the top and bottom of the rolling element mounting groove, two of the oil filling holes are arranged above the right side of the rolling shaft groove, and the oil guide channel is arranged at the exit inside the retaining frame.

[0008] Based on the above technical solution, the interior of the retaining frame includes a stainless steel layer, a carbon nanotube layer, a polytetrafluoroethylene layer, and a silicon nitride layer. The carbon nanotube layer is distributed outside the stainless steel layer, the polytetrafluoroethylene layer is distributed outside the carbon nanotube layer, and the silicon nitride layer is distributed outside the polytetrafluoroethylene layer.

[0009] Compared with the prior art, the utility model has the following advantages: the utility model improves the structure of the existing tapered roller bearing retainer, enables rapid oiling, improves the wear resistance of the material, and prolongs the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0011] Figure 2 This is a schematic diagram of the structure of the cage of the utility model.

[0012] Figure 3 It is a schematic diagram of the internal structure of the retainer of the utility model.

[0013] In the figure: 1. outer ring, 2. inner ring, 3. retaining frame, 4. rolling element, 5. shaft hole, 6. rolling element mounting groove, 7. rolling shaft groove, 8. oil filling hole, 9. oil guide channel, 10. stainless steel layer, 11. carbon nanotube layer, 12. polytetrafluoroethylene layer, 13. silicon nitride layer. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-3 As shown, a tapered roller bearing comprises an outer ring 1, an inner ring 2, a retaining frame 3, rolling elements 4, and an axial hole 5. The retaining frame 3 is installed between the outer ring 1 and the inner ring 2, a plurality of rolling elements 4 are equidistantly axially connected in the retaining frame 3, and the axial hole 5 is opened inside the inner ring 2.

[0016] The retaining frame 3 includes a rolling element mounting groove 6, a rolling shaft groove 7, an oil filling hole 8, and an oil guide channel 9. A plurality of the rolling element mounting grooves 6 are equidistantly arranged on the outside of the retaining frame 3, two rolling shaft grooves 7 are respectively arranged on the top and bottom of the rolling element mounting groove 6, two oil filling holes 8 are arranged above the right side of the rolling shaft groove 7, and the oil guide channel 9 is arranged at the middle of the interior of the retaining frame 3.

[0017] The retaining frame 3 includes a stainless steel layer 10, a carbon nanotube layer 11, a polytetrafluoroethylene layer 12, and a silicon nitride layer 13. The carbon nanotube layer 11 is distributed outside the stainless steel layer 10, the polytetrafluoroethylene layer 12 is distributed outside the carbon nanotube layer 11, and the silicon nitride layer 13 is distributed outside the polytetrafluoroethylene layer 12.

[0018] The working principle of the utility model: the top of the cage of the utility model is provided with two oil filling holes, and the lubricating oil is injected through these holes. When the bearing is running, the lubricating oil will reach each rolling element mounting groove through the oil guide channel to lubricate all rolling elements. At the same time, the cage is made of a composite of four materials, which improves its wear resistance and corrosion resistance.

[0019] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A tapered roller bearing, comprising an outer ring (1), an inner ring (2), a cage (3), rolling elements (4), and an axial hole (5), characterized in that: A retaining frame (3) is installed between the outer ring (1) and the inner ring (2), a plurality of rolling bodies (4) are equidistantly axially connected in the retaining frame (3), and the axial hole (5) is opened inside the inner ring (2).

2. A tapered roller bearing according to claim 1, characterized in that: The retaining frame (3) comprises a rolling element mounting groove (6), a rolling shaft groove (7), an oil injection hole (8), and an oil introduction channel (9); a plurality of the rolling element mounting grooves (6) are equidistantly arranged on the outside of the retaining frame (3); two rolling shaft grooves (7) are respectively arranged on the top and bottom of the rolling element mounting groove (6); two oil injection holes (8) are arranged above the right side of the rolling shaft groove (7); and the oil introduction channel (9) is arranged at the inner middle of the retaining frame (3).

3. A tapered roller bearing according to claim 1, characterized in that: The retaining frame (3) comprises a stainless steel layer (10), a carbon nanotube layer (11), a polytetrafluoroethylene layer (12), and a silicon nitride layer (13) inside; the carbon nanotube layer (11) is distributed outside the stainless steel layer (10); the polytetrafluoroethylene layer (12) is distributed outside the carbon nanotube layer (11); and the silicon nitride layer (13) is distributed outside the polytetrafluoroethylene layer (12).

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