Special bearing for low-altitude turbojet aircraft

Abstract

The utility model relates to the field of bearing devices, and discloses a special bearing for a low-altitude turbojet aircraft, which comprises an outer ring, a filling port is arranged on the side wall of the outer ring, an oil storage tank is arranged inside the outer ring, second grooves are respectively arranged on two sides of the inner side wall of the outer ring, a plurality of lubricating ports are respectively arranged on the inner side walls of the two second grooves in a circumferential array mode, and the lubricating ports are communicated with the oil storage tank. A plurality of rollers are slidably connected to the inner side walls of the two second grooves correspondingly, a sealing plug is slidably connected to the inner side wall of the filling port, an inner ring is arranged on the inner side wall of the outer ring, and first grooves are formed in the two sides of the side wall of the inner ring correspondingly. According to the special bearing for the low-altitude turbojet aircraft, the two rows of parallel pin rollers are arranged in the outer ring, so that higher rotation precision and lower vibration level are achieved, and the oil storage tank is formed in the outer ring, so that material performance reduction or bearing failure caused by overheating is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing device field especially relates to a low altitude vortex jet aircraft special bearing. BACKGROUND

[0002] Low altitude vortex jet aircraft is a kind of jet aircraft used in low altitude flight environment, its special bearing plays a vital role in the performance and safety of aircraft, bearing supports the rotating parts of aircraft, such as engine rotor, propeller etc., ensure its stability and precision when high-speed rotation.

[0003] Although prior art improves the stability when rotating by using special bearing on rotating part, but bearing is prone to vibration when using, thereby causing equipment to be damaged when using, therefore, the technical personnel in the art provides a low altitude vortex jet aircraft special bearing to solve the problems in the background art. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a low altitude vortex jet aircraft special bearing, which has higher rotation precision and lower vibration level by arranging two rows of parallel rollers inside the outer ring, and has an oil storage groove arranged on the outer ring to prevent material performance degradation or bearing failure caused by overheating.

[0005] To achieve the above object, the utility model provides the following technical scheme: a low altitude vortex jet aircraft special bearing, comprising an outer ring, the outer ring side wall is equipped with a filling opening, the outer ring interior is provided with an oil storage groove, the outer ring inner side wall two sides are equipped with second recess respectively, and the inner side wall of two second recesses is respectively circumferentially arranged with a plurality of lubricating openings, the inner side wall of two second recesses is respectively slidably connected with a plurality of rollers, the inner side wall of filling opening is slidably connected with a sealing plug, and the inner side wall of outer ring is provided with an inner ring, the inner ring side wall two sides are equipped with first recess respectively;

[0006] Through the above technical scheme, two rows of parallel rollers are arranged inside the outer ring, which can bear greater radial and axial load, and the load can be distributed on more contact points due to two rows of rollers, thereby improving the load-carrying capacity of the bearing, and the two rows of rollers can better balance the load, so that the double-row bearing usually has higher rotation precision and lower vibration level, which is particularly important for precision machinery and high-speed running equipment.

[0007] Further, a plurality of lubricating openings are respectively communicated with the inside of the oil storage groove through the inner side wall of the second recess.

[0008] Through the above technical scheme, the rollers are effectively lubricated.

[0009] Further, the filling port is in communication with the oil storage groove through the outer ring, and the sealing plug is matched with the inner wall of the filling port;

[0010] Through the above technical scheme, the oil storage groove is effectively sealed.

[0011] Further, the plurality of rollers are in sliding connection with the side walls of the two first grooves;

[0012] Through the above technical scheme, the stability of the rollers during rotation is effectively improved.

[0013] Further, the outer ring and the inner ring are coaxially arranged;

[0014] Through the above technical scheme, the stability of the device as a whole is improved.

[0015] Further, the two second grooves and the two first grooves are respectively arranged obliquely;

[0016] Through the above technical scheme, the bearing has higher rotation accuracy and lower vibration level.

[0017] Further, the outer ring and the inner ring are made of M50 steel;

[0018] Through the above technical scheme, the structural strength of the device as a whole is improved.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, two rows of parallel rollers are arranged in the inner ring, which can bear greater radial and axial loads. Since there are two rows of rollers, the load can be distributed on more contact points, thereby improving the load-carrying capacity of the bearing. Since the two rows of rollers can better balance the load, the double-row bearing usually has higher rotation accuracy and lower vibration level, which is particularly important for precision machinery and high-speed running equipment.

[0021] 2. In the utility model, an oil storage groove is arranged on the outer ring. The oil storage groove can store a certain amount of lubricating oil, ensuring that the lubricating oil can be continuously and uniformly distributed between the rollers and the outer ring during the operation of the bearing, reducing friction and wear. In addition, the lubricating oil can carry away the heat generated during the operation of the bearing, helping the bearing to maintain an appropriate working temperature and preventing material performance degradation or bearing failure due to overheating. DRAWINGS

[0022] Figure 1 A perspective view of a special bearing for low-altitude turbojet aircraft is provided in the utility model;

[0023] Figure 2Another perspective view of the special bearing of the low-altitude vortex jet aircraft is provided in the utility model.

[0024] Figure 3 The front view of the special bearing of the low-altitude vortex jet aircraft is provided in the utility model.

[0025] Figure 4 The sectional view of the special bearing of the low-altitude vortex jet aircraft is provided in the utility model.

[0026] Legend:

[0027] 1, outer ring; 2, sealing plug; 3, roller; 4, inner ring; 5, filling port; 6, oil storage groove; 7, lubricating port; 8, first groove; 9, second groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Referring to Figures 1-4 , the utility model provides an embodiment: a special bearing of low-altitude vortex jet aircraft, including outer ring 1, outer ring 1 side wall is equipped with filling port 5, and outer ring 1 is internally provided with oil storage groove 6, and the inner side wall of outer ring 1 is respectively equipped with second groove 9 on both sides, and the inner side wall of two second grooves 9 is respectively circumferentially arrayed with a plurality of lubricating ports 7, and the inner side wall of two second grooves 9 is respectively slidably connected with a plurality of rollers 3, and the inner side wall of filling port 5 is slidably connected with sealing plug 2, and the inner side wall of outer ring 1 is provided with inner ring 4, and the side wall of inner ring 4 is respectively equipped with first groove 8 on both sides, by being internally provided with two rows of parallel rollers 3 of outer ring 1, greater radial and axial load can be borne, because of two rows of rollers 3, load can be distributed on more contact points, thereby improve the carrying capacity of bearing, because two rows of rollers 3 can better balance load, double-row bearing usually has higher rotation accuracy and lower vibration level, which is particularly important for precision machinery and high-speed running equipment.

[0030] A plurality of lubricating ports 7 are respectively communicated with the inside of the oil storage groove 6 through the inner side wall of the second groove 9, the filling port 5 is communicated with the inside of the oil storage groove 6 through the outer ring 1, the sealing plug 2 is matched with the inner side wall of the filling port 5, a plurality of rollers 3 are slidingly connected with the side wall of the two first grooves 8, the outer ring 1 and the inner ring 4 are coaxially arranged, the two second grooves 9 and the two first grooves 8 are respectively arranged in an inclined manner, the materials of the outer ring 1 and the inner ring 4 are both M50 steel, and the oil storage groove 6 is arranged on the outer ring 1, a certain amount of lubricating oil can be stored in the oil storage groove 6, so that the lubricating oil can be continuously and uniformly distributed between the rollers 3 and the outer ring 1 during the operation of the bearing, the friction and wear are reduced, the heat generated during the operation of the bearing can be taken away during the circulation of the lubricating oil, the working temperature of the bearing is maintained, and the performance of the material is prevented from being reduced or the bearing is prevented from being damaged due to overheating.

[0031] Working principle: by arranging two rows of parallel rollers 3 in the inside of the outer ring 1, greater radial and axial loads can be borne, since there are two rows of rollers 3, the load can be distributed on more contact points, so that the bearing capacity of the bearing is improved, since the two rows of rollers 3 can better balance the load, the double-row bearing usually has higher rotation accuracy and lower vibration level, which is particularly important for precision machinery and high-speed running equipment, the oil storage groove 6 is arranged on the outer ring 1, a certain amount of lubricating oil can be stored in the oil storage groove 6, so that the lubricating oil can be continuously and uniformly distributed between the rollers 3 and the outer ring 1 during the operation of the bearing, the friction and wear are reduced, the heat generated during the operation of the bearing can be taken away during the circulation of the lubricating oil, the working temperature of the bearing is maintained, and the performance of the material is prevented from being reduced or the bearing is prevented from being damaged due to overheating.

[0032] Finally, it should be pointed out that: the above only describes preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A bearing specifically designed for low-altitude turbojet aircraft, comprising an outer ring (1), characterized in that: The outer ring (1) has a filling port (5) on its side wall. The outer ring (1) has an oil storage groove (6) inside. The inner side wall of the outer ring (1) has a second groove (9) on each side. The inner side wall of the two second grooves (9) has a number of lubrication ports (7) arranged in a circular array. The inner side wall of the two second grooves (9) is slidably connected to a number of rollers (3). The inner side wall of the filling port (5) is slidably connected to a sealing plug (2). The inner side wall of the outer ring (1) has an inner ring (4). The inner side wall of the inner ring (4) has a first groove (8) on each side.

2. The bearing for low-altitude turbojet aircraft according to claim 1, characterized in that: Several of the lubrication ports (7) respectively penetrate the inner wall of the second groove (9) and communicate with the inside of the oil storage tank (6).

3. The bearing for low-altitude turbojet aircraft according to claim 1, characterized in that: The filling port (5) passes through the outer ring (1) and communicates with the inside of the oil storage tank (6). The sealing plug (2) is adapted to the inner side wall of the filling port (5).

4. The bearing for low-altitude turbojet aircraft according to claim 1, characterized in that: Several of the rollers (3) are slidably connected to the sidewalls of the two first grooves (8).

5. A bearing for low-altitude turbojet aircraft according to claim 1, characterized in that: The outer ring (1) and the inner ring (4) are coaxially arranged.

6. A bearing for low-altitude turbojet aircraft according to claim 1, characterized in that: The two second grooves (9) and the two first grooves (8) are respectively inclined.

7. A bearing for low-altitude turbojet aircraft according to claim 1, characterized in that: The outer ring (1) and the inner ring (4) are both made of M50 steel.

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