Rotor supporting structure of gyro stabilization device

Abstract

The utility model discloses a rotor supporting structure of a gyro stabilization device, which relates to the technical field of gyro stabilization devices and comprises a rotor shell, roller bearings, four-point contact bearings, bearing inner glands and bearing outer glands, a gyro rotor is mounted in the rotor shell, the roller bearings are mounted at two ends of the gyro rotor, and the four-point contact bearings are mounted at two ends of the four-point contact bearings. The four-point contact bearing is installed at one end of the gyrorotor and arranged on the outer side of the roller bearing, the roller bearing and the four-point contact bearing are both arranged in the rotor shell, the bearing inner gland is fixed to the gyrorotor, the bearing inner gland is arranged on the outer side of an inner ring of the four-point contact bearing, the bearing outer gland is fixed to the rotor shell, and the roller bearing and the four-point contact bearing are arranged in the rotor shell. And the bearing outer gland is arranged on the outer side of the four-point contact bearing outer ring. According to the rotor supporting structure of the gyroscope stabilization device, the purchase cost of the bearing is reduced, the machining precision requirement and the assembly difficulty of parts are reduced, the part cost and the assembly cost are also reduced, and meanwhile convenience is provided for maintenance and repair.

Description

TECHNICAL FIELD

[0001] The utility model relates to gyro stabilizer technology field especially relates to a rotor support structure of gyro stabilizer. BACKGROUND

[0002] Gyro stabilizer is to reduce the ship swing, improve the seaworthiness, utilize the precession characteristic of gyro and form stable moment to reduce the ship swing device. Gyro rotor as the core component of gyro stabilizer is the component of high speed rotation after dynamic balance check by external force driving. In the process of stabilizing, gyro rotor not only rotates at high speed but also bears great axial impact load, so the support structure of gyro rotor is very important component of gyro stabilizer.

[0003] The rotor support structure of the existing gyro stabilizer uses precision angular contact bearings through back-to-back mounting mode at both ends of gyro rotor, uses back-to-back precision angular contact bearings in group at both ends, increases a large amount of cost from bearing procurement, relevant part machining precision requirement or assembly process, thereby causing that the economic efficiency of gyro stabilizer is poor compared with other stabilizing equipment, and the maintenance and repair are very inconvenient. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned deficiencies existing at present, the utility model provides a rotor support structure of gyro stabilizer, reduces the procurement cost of bearing, reduces the machining precision requirement and assembly difficulty of part, also reduces the part cost and assembly cost, and provides the convenience for maintenance and repair.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model adopts the following technical scheme:

[0006] A rotor support structure of gyro stabilizer, including rotor shell, gyro rotor is installed in the rotor shell, the rotor support structure of gyro stabilizer further includes roller bearing, four-point contact bearing, bearing inner pressure cover, bearing outer pressure cover, the roller bearing is installed at both ends of gyro rotor, the four-point contact bearing is installed at one end of gyro rotor, and the four-point contact bearing is arranged outside the roller bearing, and the roller bearing and the four-point contact bearing are arranged in the rotor shell, the bearing inner pressure cover is fixed with gyro rotor, and the bearing inner pressure cover is arranged outside the inner ring of four-point contact bearing, the bearing outer pressure cover is fixed with rotor shell, and the bearing outer pressure cover is arranged outside the outer ring of four-point contact bearing.

[0007] According to one aspect of the utility model, first bearing chamber, second bearing chamber are equipped in rotor casing, first bearing chamber is located rotor casing both ends, second bearing chamber is located rotor casing one end, second bearing chamber is communicated outside first bearing chamber, the roller bearing is located first bearing chamber, four point contact bearing is located second bearing chamber.

[0008] According to one aspect of the utility model, first shoulder, second shoulder are equipped on gyro rotor, first shoulder is located gyro rotor both ends, second shoulder is located gyro rotor one end, second shoulder is located first shoulder outside, the roller bearing is installed on first shoulder, four point contact bearing is installed on second shoulder.

[0009] According to one aspect of the utility model, rotor casing includes upper casing, lower casing, both are fixed, first bearing chamber is arranged in upper casing, lower casing respectively, second bearing chamber is arranged in upper casing or lower casing.

[0010] According to one aspect of the utility model, first bearing chamber, second bearing chamber are all round grooves, and both are concentrically arranged.

[0011] According to one aspect of the utility model, bearing inner gland is fixed with gyro rotor through hexagon bolt, and bearing outer gland is fixed with rotor casing through inner hexagon screw.

[0012] According to one aspect of the utility model, bearing inner gland, bearing outer gland are all plate structures, bearing inner gland is tightly attached to the outside of four point contact bearing inner ring, and bearing outer gland is tightly attached to the outside of four point contact bearing outer ring.

[0013] The utility model discloses a rotor support structure of gyro roll damping device, including rotor casing, the gyro rotor is installed in the rotor casing, the rotor support structure of gyro roll damping device still includes roller bearing, four point contact bearing, bearing inner gland, bearing outer gland, the roller bearing is installed in the both ends of gyro rotor, four point contact bearing is installed in gyro rotor one end, and four point contact bearing is located the outside of roller bearing, and the roller bearing and four point contact bearing all are located in the rotor casing, bearing inner gland is fixed with gyro rotor, and bearing inner gland is located four point contact bearing inner ring outside, bearing outer gland is fixed with rotor casing, and bearing outer gland is located four point contact bearing outer ring outside. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] The names corresponding to the serial numbers in the drawing are as follows:

[0017] 1, rotor casing;11, upper casing;12, lower casing;2, roller bearing;3, four point contact bearing;4, gyro rotor;5, bearing inner gland;6, bearing outer gland;7, hexagonal bolt;8, internal hexagonal screw. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application. In the description of the present application, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0019] As Figure 1As shown, a rotor support structure of a gyro stabilizer device includes a rotor housing 1, a roller bearing 2, a four-point contact bearing 3, a bearing inner pressure cover 5, and a bearing outer pressure cover 6, wherein the rotor housing 1 is internally provided with a gyro rotor 4. The rotor housing 1 includes a consistent upper housing 11 and a lower housing 12, which are combined and fixed in a top-to-bottom manner to form an outer shell of the gyro rotor 4. The outer shell is used to protect and enclose the high-speed rotating gyro rotor 4 and to support the installation of other components. The rotor housing 1 is provided with a first bearing chamber at each of the upper and lower ends thereof. The upper end or the lower end of the rotor housing 1 is provided with a second bearing chamber. The first bearing chamber is provided in the upper housing 11 and the lower housing 12. The second bearing chamber is provided in the upper housing 11 or the lower housing 12. There are two first bearing chambers and one second bearing chamber. The second bearing chamber is connected to the outer side of one of the first bearing chambers. The roller bearing 2 and the four-point contact bearing 3 are both provided in the rotor housing 1. The roller bearing 2 is installed at the upper and lower ends of the gyro rotor 4. The four-point contact bearing 3 is installed at the upper end or the lower end of the gyro rotor 4. The four-point contact bearing 3 is located at the outer side of one of the roller bearings 2. The roller bearing 2 is provided in the first bearing chamber. The four-point contact bearing 3 is provided in the second bearing chamber. The number and arrangement of the bearing inner pressure cover 5 and the bearing outer pressure cover 6 are adapted to the number and arrangement of the four-point contact bearing 3. The bearing inner pressure cover 5 is fixed to the upper end or the lower end of the gyro rotor 4 and is tightly attached to the outer side of the inner ring of the four-point contact bearing 3. The bearing outer pressure cover 6 is fixed to the outer wall of the rotor housing 1 (i.e., the upper housing 11 or the lower housing 12) and is tightly attached to the outer side of the outer ring of the four-point contact bearing 3. The bearing chamber provided by the rotor housing 1 is used as a structural support. The two roller bearings 2 are used to ensure the high-speed rotation of the gyro rotor 4 and to bear the radial load of the gyro rotor 4. The four-point contact bearing 3 bears the axial impact load of the gyro rotor 4. That is, the two types of loads originally borne by the precision angular contact bearing are borne by the roller bearing 2 and the four-point contact bearing 3. This greatly reduces the procurement cost of the bearings, the processing cost of the components, and the assembly difficulty. The maintenance and repair are also facilitated.

[0020] In actual applications, the roller bearing 2 and the four-point contact bearing 3 are positioned and installed on the gyro rotor 4 through shaft shoulders. The gyro rotor 4 is provided with a first shaft shoulder and a second shaft shoulder. The first shaft shoulder is provided at the upper and lower ends of the gyro rotor 4. The second shaft shoulder is provided at the upper end or the lower end of the gyro rotor 4. The second shaft shoulder is located at the outer side of one of the first shaft shoulders. The roller bearing 2 is installed on the first shaft shoulder. The four-point contact bearing 3 is installed on the second shaft shoulder. The roller bearing 2 is assembled with the gyro rotor 4 through the inner ring to ensure the high-speed rotation of the gyro rotor 4 and to bear the radial load of the gyro rotor 4. The axial impact load of the gyro rotor 4 is borne by the four-point contact bearing 3.

[0021] In practical application, the first bearing chamber and the second bearing chamber are circular grooves, and the two are arranged concentrically with one inside the other and one large and one small.

[0022] In practical application, the bearing inner pressure cover 5 is fixed as a whole with the gyro rotor 4 through the hexagonal bolt 7, and the specification of the hexagonal bolt 7 can be M16; the bearing inner pressure cover 5 is a plate structure, which can be a circular plate, and the bearing inner pressure cover 5 is tightly pressed against the outer side of the inner ring of the four-point contact bearing 3. The bearing outer pressure cover 6 is fixed with the rotor shell 1 through the inner hexagonal screw 8, and the specification of the inner hexagonal screw 8 can be M6; the bearing outer pressure cover 6 is a plate structure, which can be a circular plate with a hole or an annular plate, and the bearing outer pressure cover 6 is tightly pressed against the outer side of the outer ring of the four-point contact bearing 3.

[0023] In practical application, the bearing outer pressure cover 6 is provided with an assembly hole in the center, which can be a circular hole; the bearing inner pressure cover 5 is arranged concentrically in the assembly hole; and the diameter of the assembly hole is greater than the inner diameter of the outer ring of the four-point contact bearing 3.

[0024] The advantages of the utility model lie in that, compared with the rotor support structure of the existing gyro roll damping device, the radial load and the axial impact load of the gyro rotor 4 during operation are all borne by the precision angular contact bearing, thereby causing the procurement cost, the processing cost and the assembly cost to be too high, the radial load of the gyro rotor 4 during operation in the rotor support structure is borne by the roller bearing 2, and the axial impact load is borne by the four-point contact bearing 3, thereby reducing the procurement cost of the bearing; the processing precision requirement and the assembly difficulty of the parts are reduced, thereby reducing the part cost and the assembly cost; and the maintenance and repair are facilitated.

[0025] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes, combinations or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A rotor support structure of a gyro-stabilizer, comprising a rotor casing (1) in which a gyro rotor (4) is housed, characterized in that, The rotor support structure of the gyro stabilizer further comprises a roller bearing (2), a four-point contact bearing (3), an inner bearing pressure cover (5), and an outer bearing pressure cover (6), the roller bearing (2) is installed at both ends of the gyro rotor (4), the four-point contact bearing (3) is installed at one end of the gyro rotor (4), the four-point contact bearing (3) is arranged outside the roller bearing (2), and the roller bearing (2) and the four-point contact bearing (3) are arranged in the rotor housing (1), the inner bearing pressure cover (5) is fixed with the gyro rotor (4), the inner bearing pressure cover (5) is arranged outside the inner ring of the four-point contact bearing (3), and the outer bearing pressure cover (6) is fixed with the rotor housing (1), and the outer bearing pressure cover (6) is arranged outside the outer ring of the four-point contact bearing (3).

2. The rotor support structure of a gyro-stabilized device according to claim 1, characterized by, The rotor housing (1) is provided with a first bearing chamber and a second bearing chamber, the first bearing chamber is arranged at both ends of the rotor housing (1), the second bearing chamber is arranged at one end of the rotor housing (1), and the second bearing chamber is communicated outside the first bearing chamber, the roller bearing (2) is arranged in the first bearing chamber, and the four-point contact bearing (3) is arranged in the second bearing chamber.

3. The rotor support structure of a gyro-stabilized device according to claim 1, characterized by, The gyro rotor (4) is provided with a first shaft shoulder and a second shaft shoulder, the first shaft shoulder is arranged at both ends of the gyro rotor (4), the second shaft shoulder is arranged at one end of the gyro rotor (4), and the second shaft shoulder is located outside the first shaft shoulder, the roller bearing (2) is installed on the first shaft shoulder, and the four-point contact bearing (3) is installed on the second shaft shoulder.

4. The rotor support structure of a gyro-stabilized device according to claim 2, characterized by The rotor housing (1) comprises an upper housing (11) and a lower housing (12), and the two are fixed, the first bearing chamber is arranged in the upper housing (11) and the lower housing (12) respectively, and the second bearing chamber is arranged in the upper housing (11) or the lower housing (12).

5. The rotor support structure of a gyro-stabilized device according to claim 4, characterized by The first bearing chamber and the second bearing chamber are both circular grooves and are arranged concentrically.

6. The rotor support structure of a gyros tability device according to claim 1, characterized by The inner bearing pressure cover (5) is fixed with the gyro rotor (4) through a hexagonal bolt (7), and the outer bearing pressure cover (6) is fixed with the rotor housing (1) through an inner hexagonal screw (8).

7. The rotor support structure of a gyro-stabilized device according to claim 6, characterized by The inner bearing pressure cover (5) and the outer bearing pressure cover (6) are both plate structures, the inner bearing pressure cover (5) is tightly arranged outside the inner ring of the four-point contact bearing (3), and the outer bearing pressure cover (6) is tightly arranged outside the outer ring of the four-point contact bearing (3).

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