High-precision rotary transformer with speed change function
By designing a high-precision rotary transformer with built-in reducer and adopting a multi-stage gear meshing transmission and double-tooth structure, the problem that the rotary transformer in the prior art fails to achieve the speed change function, and realizes the speed change function of a fixed transmission ratio and high-precision signal conversion to meet the use needs of aerospace equipment.
Patent Information
- Application Number
- CN202411897784.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-03-28
AI Technical Summary
Although existing rotary transformers have high-precision angular displacement detection and control in the aerospace field, they have failed to achieve the speed change function and cannot meet the current usage needs.
A high-precision rotary transformer with a built-in reducer is designed, adopting a multi-stage gear meshing transmission and a double-tooth structure, which eliminates gaps through the spring 21 to achieve stable transmission ratio and high-precision signal conversion.
It realizes the gear change function of fixed transmission ratio, meets the use needs of aerospace equipment, expands the product application range, and ensures high-precision signal conversion.
Smart Images
Figure CN119712816A_ABST
Abstract
Description
Technical Field
[0001] The invention discloses a high-precision rotary transformer with a speed-changing function, belonging to the technical field of rotary transformers for aviation. Background Art
[0002] Since the rotary transformer has high-precision angular displacement detection and control, and can realize the conversion between angular displacement signals and electrical signals, it is widely used in the aerospace field. At present, only realizing the conversion between signals can no longer meet the use requirements of aerospace. According to the current use requirements, the rotary transformer needs to have a speed change function while meeting high precision. Therefore, in order to improve the application scope of the product, it is necessary to design a high-precision rotary transformer with a speed change function to effectively solve the above problems. Summary of the invention
[0003] The purpose of the present invention is to provide a high-precision rotary transformer with a speed change function, which can ensure high-precision angular displacement detection and control, and realize a speed change function with a fixed transmission ratio, meet the needs of aerospace use, and effectively improve the application range of the product.
[0004] The technical solution of the present invention is:
[0005] To achieve the above object, the present invention is implemented by the following technical scheme: A high-precision rotary transformer with a speed-changing function comprises a reduction gear 1, a housing 2, a rotary transformer 3, a socket 4, a rear end cover 5, a screw with a safety hole 6, a screw 7, a pressure plate 8, a mounting screw 9, a connecting screw 10, and a fuse 11, and adopts a structure in which a reducer is built in, such as Figure 1 shown.
[0006] The rotary transformer 3 is fixed to the reduction gear 1 by a pressure plate 8 and mounting screws 9; the housing 2 and the rear end cover 5 are installed on the assembled reduction gear and rotary transformer, and the housing 2 and the rear end cover 5 are fixed by screws 7; the lead wires of the rotary transformer 3 are welded to the pins on the socket 4 in a one-to-one correspondence, and the socket 4 is fixed to the housing 2 by a screw 6 with a safety hole, and the screw 6 with a safety hole is fixed with a fuse 11.
[0007] The reduction device 1 is a multi-stage gear meshing transmission, including an input gear shaft 12, a gear assembly 13, a gear box housing 14, and a gear plate 15; a gear is processed on the input gear shaft 12 as the first stage of the reduction device; both ends of the gear assembly 13 are installed on the gear box housing 14 and the gear plate 15 through bearings 23.
[0008] A bearing 24 is installed between the input gear shaft 12 and the gear box housing 14 , and is fixedly connected to the gear box housing 14 via a movable nut 16 and a movable retaining ring 17 .
[0009] A gear is installed on the shaft of the rotary transformer 3 , which meshes with the internal gear assembly 13 of the reduction gear 1 , and together constitutes a first stage of the reduction gear 1 .
[0010] The gear box housing 14 is provided with evenly distributed threaded holes, and the housing 2 and the gear box housing 14 are threadedly connected and fixed by connecting screws 10 .
[0011] The movable nut 16 is threadedly connected to the input gear shaft 12 .
[0012] The movable retaining ring 17 is threadedly connected to the gear box housing 14 .
[0013] The gear assembly 13 includes a gear plate a 18, a gear plate b 19, a gear shaft 20, and a spring 21; the gear plate a 18 and the gear plate b 19 are press-fitted onto the gear shaft 20, and a spring 21 is installed between the gear plate a 18 and the gear plate b 19.
[0014] There are two teeth staggered between the gear plate a 18 and the gear plate b 19, so that the spring 21 is in a stressed state, and a retaining ring 22 is installed on the left side of the gear plate a 18 to fix it.
[0015] A high-precision rotary transformer with a speed-changing function. When working normally, an external angular displacement signal drives an input gear shaft 12 to rotate, and is transmitted to the shaft of a rotary transformer 3 through the meshing of gears inside a reduction device 1. The rotary transformer 3 converts the angular displacement signal into an electrical signal by using the principle of electromagnetic induction, and outputs the electrical signal to the outside through a socket 4. The gear assembly 13 adopts a flexible adjustment method, uses a double-tooth structure, and uses a spring 21 to eliminate the gap. The double-tooth structure eliminates the gear transmission error based on the bite action of a gear plate a 18 and a gear plate b 19, thereby ensuring the high precision of the rotary transformer 3.
[0016] The beneficial effects of the present invention are:
[0017] The present invention proposes a high-precision rotary transformer with a speed-changing function, which adopts a structure of a built-in reducer to achieve a stable transmission ratio and high-precision signal conversion, meet the use requirements of current aerospace equipment, and effectively expand the application range of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the front view and the right view of the present invention.
[0019] Figure 2 It is a schematic diagram of the structure of the reduction gear of the present invention.
[0020] Figure 3 It is a schematic diagram of the gear assembly structure of the present invention.
[0021] Among them: 1. Speed reducer, 2. Housing, 3. Rotary transformer, 4. Socket, 5. Rear cover, 6. Screw with safety hole, 7. Screw, 8. Pressure plate, 9. Mounting screw, 10. Connecting screw, 11. Fuse, 12. Input gear shaft, 13. Gear assembly, 14. Gear box housing, 15. Gear plate, 16. Moving nut, 17. Moving retaining ring, 18. Gear plate a, 19. Gear plate b, 20. Gear shaft, 21. Spring, 22. Retaining ring, 23. Bearing a, 24, Bearing b DETAILED DESCRIPTION
[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] like Figure 1 As shown, a high-precision rotary transformer with a speed changing function includes a reduction gear 1, a housing 2, a rotary transformer 3, a socket 4, a rear end cover 5, a screw 6 with a safety hole, a screw 7, a pressure plate 8, a mounting screw 9, a connecting screw 10, and a fuse 11.
[0024] The rotary transformer 3 is fixed to the reduction gear 1 by a pressure plate 8 and mounting screws 9; the housing 2 and the rear end cover 5 are installed on the assembled reduction gear and rotary transformer, and the housing 2 and the rear end cover 5 are fixed by screws 7; the lead wires of the rotary transformer 3 are welded to the pins on the socket 4 in a one-to-one correspondence, and the socket 4 is fixed to the housing 2 by a screw 6 with a safety hole, and the screw 6 with a safety hole is fixed with a fuse 11.
[0025] The reduction gear 1 is a multi-stage gear meshing transmission, including an input gear shaft 12, a gear assembly 13, a gear box housing 14, and a gear plate 15; a gear is machined on the input gear shaft 12 as a first stage of the reduction gear; both ends of the gear assembly 13 are mounted on the gear box housing 14 and the gear plate 15 through bearings 23. A bearing 24 is installed between the input gear shaft 12 and the gear box housing 14, and is fixedly connected to the gear box housing 14 through a moving nut 16 and a moving retaining ring 17.
[0026] A gear is installed on the shaft of the rotary transformer 3 , which meshes with the internal gear assembly 13 of the reduction gear 1 , and together constitutes a first stage of the reduction gear 1 .
[0027] The gear box housing 14 is provided with evenly distributed threaded holes, and the housing 2 and the gear box housing 14 are threadedly connected and fixed by connecting screws 10 .
[0028] The movable nut 16 is threadedly connected to the input gear shaft 12 .
[0029] The movable retaining ring 17 is threadedly connected to the gear box housing 14 .
[0030] The gear assembly 13 includes a gear plate a 18, a gear plate b 19, a gear shaft 20, and a spring 21; the gear plate a 18 and the gear plate b 19 are press-fitted onto the gear shaft 20, and a spring 21 is installed between the gear plate a 18 and the gear plate b 19.
[0031] There are two teeth staggered between the gear plate a 18 and the gear plate b 19, so that the spring 21 is in a stressed state, and a retaining ring 22 is installed on the left side of the gear plate a 18 to fix it.
[0032] A high-precision rotary transformer with a speed-changing function. When working normally, an external angular displacement signal drives an input gear shaft 12 to rotate, and is transmitted to the shaft of a rotary transformer 3 through the meshing of gears inside a reduction device 1. The rotary transformer 3 converts the angular displacement signal into an electrical signal by using the principle of electromagnetic induction, and outputs the electrical signal to the outside through a socket 4. The gear assembly 13 adopts a flexible adjustment method, uses a double-tooth structure, and uses a spring 21 to eliminate the gap. The double-tooth structure eliminates the gear transmission error based on the bite action of a gear plate a 18 and a gear plate b 19, thereby ensuring the high precision of the rotary transformer 3.
Claims
1. A high-precision rotary transformer with a speed-changing function, characterized in that: include: A reduction gear (1), a housing (2), a rotary transformer (3), a socket (4), a rear end cover (5), a screw with a safety hole (6), a screw (7), a pressure plate (8), a mounting screw (9), a connecting screw (10), and a fuse (11); the rotary transformer (3) is fixed to the reduction gear (1) by means of a pressure plate (8) and a mounting screw (9); the housing (2) and the rear end cover (5) are installed on the assembled reduction gear and rotary transformer, and the housing (2) and the rear end cover (5) are fixed by means of screws (7); the lead wires of the rotary transformer (3) are welded to the pins on the socket (4) in a one-to-one correspondence, and the socket (4) is fixed to the housing (2) by means of a screw with a safety hole (6), and the screw with a safety hole (6) is fixed by means of a fuse (11).
2. The high-precision rotary transformer with speed-changing function according to claim 1, characterized in that: The reduction gear (1) is a multi-stage gear meshing transmission, comprising an input gear shaft (12), a gear assembly (13), a gear box housing (14), and a gear plate (15); a gear is machined on the input gear shaft (12) as a first stage of the reduction gear; both ends of the gear assembly (13) are mounted on the gear box housing (14) and the gear plate (15) via bearings a (23).
3. The high-precision rotary transformer protection with speed-changing function according to claim 2 is characterized in that: A bearing b (24) is installed between the input gear shaft (12) and the gear box housing (14), and is fixedly connected to the gear box housing (14) via a movable nut (16) and a movable retaining ring (17).
4. The high-precision rotary transformer protection with speed-changing function according to claim 2 is characterized in that: A gear is installed on the shaft of the rotary transformer (3), which meshes with the internal gear of the reduction gear (1), and together constitutes a first stage of the reduction gear (1).
5. The high-precision rotary transformer protection with speed-changing function according to claim 2 is characterized in that: The gear box housing (14) is provided with evenly distributed threaded holes, and the housing (2) and the gear box housing (14) are threadedly connected and fixed by connecting screws (10).
6. The high-precision rotary transformer protection with speed-changing function according to claim 3 is characterized in that: The movable nut (16) is threadedly connected to the input gear shaft (12).
7. The high-precision rotary transformer protection with speed-changing function according to claim 3 is characterized in that: The movable retaining ring (17) is threadedly connected to the gear box housing (14).
8. The high-precision rotary transformer protection with speed-changing function according to claim 2, characterized in that: The gear assembly (13) comprises a gear plate a (18), a gear plate b (19), a gear shaft (20), and a spring (21); the gear plate a (18) and the gear plate b (19) are press-fitted onto the gear shaft (20), and the spring (21) is installed between the gear plate a (18) and the gear plate b (19).
9. The high-precision rotary transformer protection with speed-changing function according to claim 8, characterized in that: There are two teeth staggered between the gear plate a (18) and the gear plate b (19), so that the spring (21) is in a stressed state, and a retaining ring (22) is installed on the left side of the gear plate a (18) to fix it.
10. The high-precision rotary transformer with speed-changing function according to any one of claims 1 to 9, characterized in that: When the rotary transformer is working normally, an external angular displacement signal drives the input gear shaft (12) to rotate, and is transmitted to the shaft of the rotary transformer (3) through the meshing of the gears inside the reduction device (1). The rotary transformer (3) converts the angular displacement signal into an electrical signal by using the electromagnetic induction principle, and outputs the electrical signal to the outside through the socket (4). The gear assembly (13) adopts a flexible adjustment method, uses a double-tooth structure, and uses a spring (21) to eliminate the gap. The double-tooth structure eliminates the gear transmission error based on the bite action of the gear plate a (18) and the gear plate b (19), thereby ensuring the high precision of the rotary transformer (3).