Rotor supporting structure for gyro stabilization device

Abstract

The invention discloses a rotor supporting structure for a gyro stabilization device, and relates to the technical field of gyro stabilization devices, the rotor supporting structure comprises a rotor shell, a gyro rotor is arranged in the rotor shell, the rotor supporting structure further comprises a first bearing, a second bearing and a cover plate assembly, and the first bearing, the second bearing and the cover plate assembly are sequentially arranged from inside to outside and are all connected with the gyro rotor; the first bearing and the second bearing are both arranged in the rotor shell, the first bearing is used for bearing the radial load of the gyrorotor, the second bearing is used for bearing the axial impact load of the gyrorotor, and the cover plate assembly is used for assembling the second bearing and the gyrorotor together. According to the rotor supporting structure for the gyroscope stabilization device, the purchasing 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 present invention relates to the technical field of gyro anti-roll device, and in particular to a rotor supporting structure for a gyro anti-roll device. Background Art

[0002] The gyro roll stabilization device is a device that uses the precession characteristics of the gyro to form a stabilizing torque to reduce the sway of the ship and improve its seaworthiness. The gyro rotor, as the core component of the gyro roll stabilization device, is a component driven by external force and rotates at high speed after dynamic balancing verification. During the roll stabilization process, the gyro rotor not only rotates at high speed but also bears a large axial impact load, so the support structure of the gyro rotor is a very important component of the gyro roll stabilization device.

[0003] In the existing rotor support structure for gyro anti-roll device, precision angular contact bearings are used at both ends of the gyro rotor through back-to-back installation. Both ends use back-to-back precision angular contact bearings in groups, which increases a lot of costs in terms of bearing procurement, processing accuracy requirements of related parts, and assembly process. As a result, the gyro anti-roll device is less economical than other anti-roll devices, and is also very inconvenient in terms of maintenance and repair. Summary of the invention

[0004] In view of the above-mentioned shortcomings, the present invention provides a rotor support structure for a gyro anti-roll device, which reduces the purchase cost of bearings, reduces the processing accuracy requirements and assembly difficulty of parts, and also reduces the cost of parts and assembly costs, while providing convenience for maintenance and repair.

[0005] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0006] A rotor support structure for a gyro anti-roll device comprises a rotor shell, wherein a gyro rotor is installed in the rotor shell, and the rotor support structure further comprises a No. 1 bearing, a No. 2 bearing, and a cover plate assembly, which are arranged in sequence from the inside to the outside and are all connected to the gyro rotor. The No. 1 bearing and the No. 2 bearing are both arranged in the rotor shell, the No. 1 bearing is used to bear the radial load of the gyro rotor, the No. 2 bearing is used to bear the axial impact load of the gyro rotor, and the cover plate assembly is used to assemble the No. 2 bearing and the gyro rotor together.

[0007] According to one aspect of the present invention, the first bearing is a roller bearing, and the roller bearing is installed at both ends of the gyro rotor.

[0008] According to one aspect of the present invention, the second bearing is a thrust bearing, and the thrust bearing is installed at both ends of the gyro rotor.

[0009] According to one aspect of the present invention, the second bearing is a four-point contact bearing, and the four-point contact bearing is installed at one end of the gyro rotor.

[0010] According to one aspect of the present invention, the cover plate assembly includes a bearing pressure plate, which is fixed at both ends of the gyro rotor and is tightly attached to the outer side of the thrust bearing.

[0011] According to one aspect of the present invention, the cover plate assembly includes an inner bearing pressure cover and an outer bearing pressure cover, wherein the inner bearing pressure cover is fixed to the gyro rotor and is arranged on the outside of the inner ring of the four-point contact bearing, and the outer bearing pressure cover is fixed to the rotor housing and is arranged on the outside of the outer ring of the four-point contact bearing.

[0012] According to one aspect of the present invention, the cover plate assembly further includes hexagonal bolts, the bearing pressure plate is fixed to the gyro rotor via the hexagonal bolts, and the bearing pressure plate is a plate structure.

[0013] According to one aspect of the present invention, the inner bearing cover is fixed to the gyro rotor by means of hexagonal bolts, and the outer bearing cover is fixed to the rotor housing by means of hexagonal socket screws.

[0014] According to one aspect of the present invention, a first bearing chamber and a second bearing chamber are provided in the rotor housing, and the two are connected in sequence from the inside to the outside. The first bearing chamber is used to install a roller bearing, and the second bearing chamber is used to install a thrust bearing or a four-point contact bearing.

[0015] According to one aspect of the present invention, the rotor housing includes an upper housing and a lower housing, which are fixed, the first bearing chamber is respectively arranged in the upper housing and the lower housing, and the second bearing chamber is arranged in the upper housing and / or the lower housing.

[0016] Advantages of the present invention: A rotor support structure for a gyro anti-roll device, comprising a rotor housing, a gyro rotor is installed in the rotor housing, and the rotor support structure also includes a first bearing, a second bearing, and a cover plate assembly, which are arranged in sequence from the inside to the outside and are all connected to the gyro rotor, the first bearing and the second bearing are both arranged in the rotor housing, the first bearing is used to bear the radial load of the gyro rotor, the second bearing is used to bear the axial impact load of the gyro rotor, and the cover plate assembly is used to assemble the second bearing and the gyro rotor together. Compared with the rotor support structure of the existing gyro anti-roll device, the radial load and axial impact load of the gyro rotor during operation are both borne by the precision angular contact bearing, resulting in excessively high procurement cost, processing cost and assembly cost, in the present rotor support structure, the radial load of the gyro rotor during operation is borne by the first bearing, and the axial impact load is borne by the second bearing, that is, the two loads are borne separately, thereby reducing the procurement cost of the bearing; reducing the machining accuracy requirements and assembly difficulty of the parts, thereby reducing the parts cost and assembly cost; and also providing convenience for maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0020] The names corresponding to the serial numbers in the figure are as follows:

[0021] 1. Rotor housing; 2. Roller bearing; 3. Thrust bearing; 4. Four-point contact bearing; 5. Gyro rotor; 6. Bearing pressure plate; 7. Bearing inner pressure cover; 8. Bearing outer pressure cover; 9. Hexagon bolt; 10. Hexagon socket screw; 11. Upper housing; 12. Lower housing. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Embodiment 1

[0024] like Figure 1 As shown, a rotor support structure for a gyro anti-roll device includes a rotor housing 1, a No. 1 bearing, a No. 2 bearing, and a cover plate assembly, wherein a gyro rotor 5 is installed in the rotor housing 1. The rotor housing 1 includes an upper housing 11 and a lower housing 12 of the same structure, which are fixedly assembled to form the outer shell of the gyro rotor 5, and the outer shell is used to protect and seal the high-speed rotating gyro rotor 5, and is also used for the installation and support of other parts. The No. 1 bearing, the No. 2 bearing, and the cover plate assembly are arranged in sequence from the inside to the outside and are all connected to the gyro rotor 5, wherein the No. 1 bearing and the No. 2 bearing are both arranged in the rotor housing 1, the No. 1 bearing is used to bear the radial load of the gyro rotor 5, the No. 2 bearing is used to bear the axial impact load of the gyro rotor 5, and the cover plate assembly is used to assemble the No. 2 bearing with the gyro rotor 5.

[0025] In this embodiment, the rotor housing 1 is provided with a first bearing chamber and a second bearing chamber at both ends, that is, the upper housing 11 is provided with a first bearing chamber and a second bearing chamber, and the lower housing 12 is provided with a first bearing chamber and a second bearing chamber; there are two first bearing chambers and two second bearing chambers, and the first bearing chamber and the second bearing chamber are connected from the inside to the outside. The first bearing chamber and the second bearing chamber are both circular grooves, one inside and one outside, one large and one small, and are concentrically arranged.

[0026] In this embodiment, the first bearing is a roller bearing 2, and the second bearing is a thrust bearing 3. The roller bearing 2, the thrust bearing 3, and the cover plate assembly are arranged in sequence from the inside to the outside and are all installed at the upper and lower ends of the gyro rotor 5; wherein the roller bearing 2 and the thrust bearing 3 are both arranged in the rotor housing 1, the roller bearing 2 is arranged in the first bearing chamber, and the thrust bearing 3 is arranged in the second bearing chamber. The cover plate assembly includes a bearing pressure plate 6 and a hexagonal bolt 9, wherein the bearing pressure plate 6 is a plate structure, which can be a circular plate, etc., and the hexagonal bolt 9 can be of M16 specification; the bearing pressure plate 6 is fixed to the gyro rotor 5 as a whole through the hexagonal bolt 9, and the bearing pressure plate 6 is tightly pressed against the outer side of the thrust bearing 3. Through the upper and lower bearing pressure plates 6 and the hexagonal bolts 9, the upper and lower thrust bearings 3 are tightly assembled with the gyro rotor 5.

[0027] In this embodiment, the roller bearing 2 and the thrust bearing 3 are both mounted on the gyro rotor 5 through the shoulder positioning; the gyro rotor 5 is provided with a first shoulder and a second shoulder, both of which are arranged at the upper and lower ends of the gyro rotor 5; the roller bearing 2 is mounted on the first shoulder, and the thrust bearing 3 is mounted on the second shoulder. The roller bearing 2 is assembled with the gyro rotor 5 through the inner ring to ensure the high-speed rotation of the gyro rotor 5 and to bear the radial load of the gyro rotor 5; the axial impact load of the gyro rotor 5 is borne by the thrust bearing 3.

[0028] In this embodiment, the bearing chamber is provided as a structural support by the rotor housing 1, and the upper and lower roller bearings 2 are used to ensure the high-speed rotation of the gyro rotor 5 and bear the radial load of the gyro rotor 5 at the same time. The thrust bearing 3 bears the axial impact load of the gyro rotor 5; that is, the two loads originally borne by the precision angular contact bearing are borne separately by the roller bearing 2 and the thrust bearing 3, so that the purchase cost of the bearings, the processing cost of the parts, and the difficulty of assembly are greatly reduced, and the maintenance and repair are also much more convenient.

[0029] The beneficial effects of this embodiment are as follows: compared with the rotor support structure of the existing gyro anti-roll device, in which the radial load and axial impact load of the gyro rotor 5 during operation are both borne by the precision angular contact bearing, resulting in excessively high procurement cost, processing cost and assembly cost, in the rotor support structure of the present invention, the radial load of the gyro rotor 5 during operation is borne by the roller bearing 2, and the axial impact load is borne by the thrust bearing 3, thereby reducing the procurement cost of the bearings; reducing the machining accuracy requirements and assembly difficulty of the parts, thereby reducing the parts cost and assembly cost; and also providing convenience for maintenance and repair.

[0030] Embodiment 2

[0031] like Figure 2As shown, a rotor support structure for a gyro anti-roll device includes a rotor housing 1, a No. 1 bearing, a No. 2 bearing, and a cover plate assembly, wherein a gyro rotor 5 is installed in the rotor housing 1. The rotor housing 1 includes an upper housing 11 and a lower housing 12 of the same structure, which are fixedly assembled to form the outer shell of the gyro rotor 5, and the outer shell is used to protect and seal the high-speed rotating gyro rotor 5, and is also used for the installation and support of other parts. The No. 1 bearing, the No. 2 bearing, and the cover plate assembly are arranged in sequence from the inside to the outside and are all connected to the gyro rotor 5, wherein the No. 1 bearing and the No. 2 bearing are both arranged in the rotor housing 1, the No. 1 bearing is used to bear the radial load of the gyro rotor 5, the No. 2 bearing is used to bear the axial impact load of the gyro rotor 5, and the cover plate assembly is used to assemble the No. 2 bearing with the gyro rotor 5.

[0032] In this embodiment, the rotor housing 1 has first bearing chambers at both ends, and the rotor housing 1 has a second bearing chamber at the upper or lower end, that is, the upper housing 11 and the lower housing 12 have first bearing chambers, and the upper housing 11 or the lower housing 12 has a second bearing chamber; there are two first bearing chambers and one second bearing chamber, and the second bearing chamber is connected to the outside of one of the first bearing chambers. The first bearing chamber and the second bearing chamber are both circular grooves, one inside and one outside, one large and one small, and are concentrically arranged.

[0033] In this embodiment, bearing No. 1 is a roller bearing 2, and bearing No. 2 is a four-point contact bearing 4, and both the roller bearing 2 and the four-point contact bearing 4 are arranged in the rotor housing 1, wherein the roller bearing 2 is installed at the upper and lower ends of the gyro rotor 5, and the four-point contact bearing 4 is installed at the upper end or the lower end of the gyro rotor 5, and the four-point contact bearing 4 is located on the outside of one of the roller bearings 2; the roller bearing 2 is arranged in the first bearing chamber, and the four-point contact bearing 4 is arranged in the second bearing chamber.

[0034] In this embodiment, the cover plate assembly includes an inner bearing pressure cover 7 and an outer bearing pressure cover 8, the number and arrangement of the inner bearing pressure cover 7 and the outer bearing pressure cover 8 are adapted to the number and arrangement of the four-point contact bearing 4; the inner bearing pressure cover 7 is fixed to the upper end or the lower end of the gyro rotor 5, and the inner bearing pressure cover 7 is tightly attached to the outer side of the inner ring of the four-point contact bearing 4; the outer bearing pressure cover 8 is fixed to the outer wall of the rotor housing 1 (i.e., the upper housing 11 or the lower housing 12), and the outer bearing pressure cover 8 is tightly attached to the outer side of the outer ring of the four-point contact bearing 4.

[0035] In this embodiment, the inner pressure cover 7 of the bearing is fixed to the gyro rotor 5 as a whole by means of hexagonal bolts 9, and the specification of the hexagonal bolts 9 can be M16; the inner pressure cover 7 of the bearing is a plate structure, which can be a circular plate, etc., and the inner pressure cover 7 of the bearing is tightly pressed against the outer side of the inner ring of the four-point contact bearing 4. The outer pressure cover 8 of the bearing is fixed to the rotor housing 1 by means of hexagon socket screws 10, and the specification of the hexagon socket screws 10 can be M6; the outer pressure cover 8 of the bearing is a plate structure, which can be a circular plate with holes or annular plates, etc., and the outer pressure cover 8 of the bearing is tightly pressed against the outer side of the outer ring of the four-point contact bearing 4. An assembly hole is provided in the center of the outer pressure cover 8 of the bearing, which can be a circular hole; the inner pressure cover 7 of the bearing is concentrically arranged in the assembly hole; the diameter of the assembly hole is larger than the inner diameter of the outer ring of the four-point contact bearing 4.

[0036] In this embodiment, the roller bearing 2 and the four-point contact bearing 4 are both mounted on the gyro rotor 5 through the shoulder positioning; the gyro rotor 5 is provided with a first shoulder and a second shoulder, wherein the first shoulder is provided at the upper and lower ends of the gyro rotor 5, the second shoulder is provided at the upper end or the lower end of the gyro rotor 5, and the second shoulder is located outside one of the first shoulders; the roller bearing 2 is mounted on the first shoulder, and the four-point contact bearing 4 is mounted on the second shoulder. The roller bearing 2 is assembled with the gyro rotor 5 through the inner ring to ensure the high-speed rotation of the gyro rotor 5 and to bear the radial load of the gyro rotor 5 at the same time; the axial impact load of the gyro rotor 5 is borne by the four-point contact bearing 4.

[0037] In this embodiment, the bearing chamber is provided as a structural support by the rotor housing 1, and the upper and lower roller bearings 2 are used to ensure the high-speed rotation of the gyro rotor 5 and bear the radial load of the gyro rotor 5 at the same time. The axial impact load of the gyro rotor 5 is borne by the four-point contact bearing 4; that is, the two loads originally borne by the precision angular contact bearing are borne separately by the roller bearing 2 and the four-point contact bearing 4, so that the purchase cost of the bearings, the processing cost of the parts, and the difficulty of assembly are greatly reduced, and maintenance and repair are also much more convenient.

[0038] The beneficial effects of this embodiment are as follows: compared with the rotor support structure of the existing gyro anti-roll device, in which the radial load and axial impact load of the gyro rotor 5 during operation are both borne by precision angular contact bearings, resulting in excessively high procurement costs, processing costs and assembly costs, in this rotor support structure, the radial load of the gyro rotor 5 during operation is borne by the roller bearings 2, and the axial impact load is borne by the four-point contact bearings 4, thereby reducing the procurement cost of the bearings; reducing the machining accuracy requirements and assembly difficulty of the parts, thereby reducing the parts cost and assembly cost; and also providing convenience for maintenance and repair.

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes, combinations or substitutions that can be easily thought of by any technician familiar with the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A rotor support structure for a gyro anti-roll device, comprising a rotor housing (1), wherein a gyro rotor (5) is mounted in the rotor housing (1), characterized in that: The rotor support structure also includes a No. 1 bearing, a No. 2 bearing, and a cover plate assembly, which are arranged in sequence from the inside to the outside and are all connected to the gyro rotor (5). The No. 1 bearing and the No. 2 bearing are both arranged in the rotor housing (1). The No. 1 bearing is used to bear the radial load of the gyro rotor (5), and the No. 2 bearing is used to bear the axial impact load of the gyro rotor (5). The cover plate assembly is used to assemble the No. 2 bearing and the gyro rotor (5) together.

2. The rotor support structure according to claim 1, characterized in that: The first bearing is a roller bearing (2), and the roller bearing (2) is installed at both ends of the gyro rotor (5).

3. The rotor support structure according to claim 2, characterized in that: The second bearing is a thrust bearing (3), and the thrust bearing (3) is installed at both ends of the gyro rotor (5).

4. The rotor support structure according to claim 2, characterized in that: The second bearing is a four-point contact bearing (4), and the four-point contact bearing (4) is installed at one end of the gyro rotor (5).

5. The rotor support structure according to claim 3, characterized in that: The cover plate assembly comprises a bearing pressure plate (6), wherein the bearing pressure plate (6) is fixed at both ends of the gyro rotor (5), and the bearing pressure plate (6) is tightly attached to the outer side of the thrust bearing (3).

6. The rotor support structure according to claim 4, characterized in that: The cover plate assembly comprises an inner bearing pressure cover (7) and an outer bearing pressure cover (8), wherein the inner bearing pressure cover (7) is fixed to the gyro rotor (5), and the inner bearing pressure cover (7) is arranged on the outer side of the inner ring of the four-point contact bearing (4), and the outer bearing pressure cover (8) is fixed to the rotor housing (1), and the outer bearing pressure cover (8) is arranged on the outer side of the outer ring of the four-point contact bearing (4).

7. The rotor support structure according to claim 5, characterized in that: The cover plate assembly also includes a hexagonal bolt (9), and the bearing pressure plate (6) is fixed to the gyro rotor (5) via the hexagonal bolt (9), and the bearing pressure plate (6) is a plate structure.

8. The rotor support structure according to claim 6, characterized in that: The inner bearing cover (7) is fixed to the gyro rotor (5) via a hexagonal bolt (9), and the outer bearing cover (8) is fixed to the rotor housing (1) via a hexagonal screw (10).

9. The rotor support structure according to any one of claims 1 to 8, characterized in that: The rotor housing (1) is provided with a first bearing chamber and a second bearing chamber, which are connected in sequence from the inside to the outside. The first bearing chamber is used to install a roller bearing (2), and the second bearing chamber is used to install a thrust bearing (3) or a four-point contact bearing (4).

10. The rotor support structure according to claim 9, characterized in that: The rotor housing (1) comprises an upper housing (11) and a lower housing (12), which 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) and / or the lower housing (12).

Images