Precise meshing tooth type coupling

Abstract

The utility model discloses a precision meshing tooth type coupler which comprises an inner shaft, a first outer shaft sleeve and a second outer shaft sleeve, outer gear rings are arranged on the outer surface of the inner shaft, inner gear rings are arranged on the inner wall of the first outer shaft sleeve and the inner wall of the second outer shaft sleeve, the inner gear rings and the outer gear rings are arranged in a meshing mode, and two sets of inner gears are symmetrically arranged. The first outer shaft sleeve and the second outer shaft sleeve are arranged outside the two sets of inner shafts in a sleeving mode respectively, and the first outer shaft sleeve and the second outer shaft sleeve are arranged in a nested and telescopic mode and used for adaptive adjustment of the length of the coupler. The utility model belongs to the technical field of couplings, and particularly relates to a precise meshing tooth type coupling.

Description

Technical Field

[0001] This utility model belongs to the field of coupling technology, specifically referring to a precision meshing gear coupling. Background Technology

[0002] In many industrial transmission fields, such as machinery manufacturing, aerospace, and marine power, couplings are key components that connect different shaft components and transmit torque. Their performance directly affects the reliability and stability of the entire transmission system.

[0003] Traditional gear couplings are fixed by connecting and fixing with flanges of fixed length. The length is designed to be fixed. In actual application scenarios, due to factors such as equipment installation errors, thermal expansion and contraction during operation, and wear and deformation of shaft components, it is often necessary to make adaptive adjustments to the length of the coupling. Fixed-length couplings may not be able to be installed smoothly or may generate large additional stress due to accumulated errors after a period of operation, reducing the service life of the equipment and increasing maintenance costs. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a precision meshing gear coupling, which effectively solves the problem that the length of the coupling is not easy to adjust adaptively.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a precision meshing gear coupling, including an inner shaft, an outer shaft sleeve one, and an outer shaft sleeve two. An outer gear ring is provided on the outer surface of the inner shaft, and an inner gear ring is provided on the inner wall of the outer shaft sleeve one and the outer shaft sleeve two. The inner gear ring and the outer gear ring are meshed. Two sets of inner shafts are symmetrically arranged. The outer shaft sleeve one and the outer shaft sleeve two are respectively sleeved on the two sets of inner shafts, and the outer shaft sleeve one and the outer shaft sleeve two are nested and telescopically arranged for adaptive adjustment of the coupling length.

[0006] Preferably, the length of the second outer bushing is greater than the length of the first outer bushing, and the first outer bushing is embedded in the second outer bushing. The outer bushing is provided with a number of limiting grooves evenly distributed on the outer periphery of the end of the second outer bushing. A number of fixed end blocks are fixed on the outer periphery of the second outer bushing near the limiting grooves. A horizontal threaded rod is fixed on the fixed end block. A number of limiting blocks that slide relative to the limiting grooves are fixed on the outer periphery of the first outer bushing. The limiting blocks and the threaded rods are threadedly connected. Two sets of sleeve nuts are threadedly connected on the threaded rods and abut against both sides of the limiting blocks.

[0007] Preferably, a limiting plate that penetrates the outer bushing is fixed on the bottom outer side of the limiting block, and the two sides of the limiting plate are in close contact with the inner wall of the limiting groove and are relatively sealed.

[0008] Preferably, a cover plate is pressed onto one end of the inner shaft, and the cover plate and the outer shaft sleeve are connected by bolts.

[0009] Preferably, the cover plate is provided with a slip ring, and the inner shaft is provided with an annular groove at one end near the cover plate, and the slip ring rotates relative to the groove.

[0010] Preferably, the limiting plate and the limiting groove correspond one-to-one, and the length of the limiting plate is the same as the length of the threaded rod.

[0011] The beneficial effects of the above-mentioned structure of this utility model are as follows: by setting the length of the coupling to be adjustable, micron-level length control can be achieved during the adjustment process, effectively compensating for length changes caused by factors such as shaft installation errors and thermal deformation, and greatly improving the overall accuracy of the transmission system; the coupling can adapt to more complex and changeable working environments and different types of shaft connection requirements, improving the reliability and stability of equipment operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the precision meshing gear coupling proposed in this utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the overall structure of the precision meshing gear coupling proposed in this utility model. Figure 2 ;

[0014] Figure 3 This is a cross-sectional view of the precision meshing gear coupling proposed in this utility model;

[0015] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0016] Among them, 1. Inner shaft, 2. Outer shaft sleeve one, 3. Outer shaft sleeve two, 4. Outer gear ring, 5. Inner gear ring, 6. Limiting groove, 7. Fixed end block, 8. Threaded rod, 9. Sleeve nut, 10. Limiting block, 11. Bolt, 12. Limiting plate, 13. Cover plate, 14. Sliding groove, 15. Slip ring. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-4 As shown, the precision meshing gear coupling proposed in this utility model includes an inner shaft 1, an outer shaft sleeve 1 2, and an outer shaft sleeve 2 3. An outer gear ring 4 is provided on the outer surface of the inner shaft 1, and an inner gear ring 5 is provided on the inner wall of the outer shaft sleeve 1 2 and the outer shaft sleeve 2 3. The inner gear ring 5 and the outer gear ring 4 are meshed. Two sets of inner shafts 1 are symmetrically arranged. The outer shaft sleeve 1 2 and the outer shaft sleeve 2 3 are respectively sleeved on the two sets of inner shafts 1. The outer shaft sleeve 1 2 and the outer shaft sleeve 2 3 are nested and telescopically arranged, thereby adjusting the length of the coupling. The length of the coupling can be adaptively adjusted as needed.

[0020] like Figure 1-3 As shown, the length of outer bushing 2 3 is greater than the length of outer bushing 1 2, and outer bushing 1 2 is embedded in outer bushing 2 3. Several limiting grooves 6 are evenly distributed on the outer periphery of the end of outer bushing 2 3. Several fixed end blocks 7 are fixed on the outer periphery of outer bushing 2 3 near the limiting grooves 6. Horizontal threaded rods 8 are fixed on the fixed end blocks 7. Several limiting blocks 10 that slide relative to the limiting grooves 6 are fixed on the outer periphery of outer bushing 1 2. The limiting blocks 10 and the threaded rods 8 are threadedly connected. Two sets of sleeve nuts 9 are threadedly connected on the threaded rods 8 and abut against both sides of the limiting blocks 10 to fix the position of the limiting blocks 10, thereby fixing the position of outer bushing 1 2.

[0021] like Figure 2 , 3 As shown, a limiting plate 12 that penetrates the outer bushing 3 is fixed on the bottom outer surface of the limiting block 10. The two sides of the limiting plate 12 are tightly attached to the inner wall of the limiting groove 6 and are relatively sealed, which ensures the sealing performance of the coupling. The limiting plate 12 and the limiting groove 6 correspond one-to-one. The length of the limiting plate 12 is greater than the length of the threaded rod 8, which further ensures the sealing performance.

[0022] like Figure 3 , 4 As shown, a cover plate 13 is pressed onto one end of the inner shaft 1. The cover plate 13 and the outer shaft sleeve 2 3 are connected by bolts 11 to facilitate the installation and disassembly of the inner shaft 1. A slip ring 15 is provided on the cover plate 13. An annular groove 14 is provided at one end of the inner shaft 1 near the cover plate 13. The slip ring 15 rotates relative to the groove 14 to limit the movement of the inner shaft 1.

[0023] In practical use, firstly, based on the equipment's design requirements and the initial installation of the shaft system, determine the approximate length of the coupling and install it onto the shaft system. Then, during equipment commissioning or operation, monitor the actual operating status of the shaft system, such as whether there are abnormal conditions like vibration, overheating, or noise, and measure the shaft system's alignment data.

[0024] By rotating the sleeve nuts 9 on both sides of the limiting block 10, the outer shaft sleeve 1 2 and the outer shaft sleeve 2 3 move relative to each other, and the limiting plate 12 moves relative to the outer shaft sleeve 2 3, so as to fine-tune the length of the coupling until the shaft system reaches the optimal operating state and realize high-precision and high-reliability torque transmission.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A precision meshing gear coupling, characterized in that: It includes an inner shaft (1), an outer shaft sleeve one (2) and an outer shaft sleeve two (3). The outer surface of the inner shaft (1) is provided with an outer gear ring (4). The inner walls of the outer shaft sleeve one (2) and the outer shaft sleeve two (3) are provided with an inner gear ring (5). The inner gear ring (5) and the outer gear ring (4) are meshed. The inner shaft (1) is symmetrically provided with two sets. The outer shaft sleeve one (2) and the outer shaft sleeve two (3) are respectively sleeved on the two sets of inner shafts (1). The outer shaft sleeve one (2) and the outer shaft sleeve two (3) are nested and telescopically arranged for adaptive adjustment of the coupling length.

2. The precision meshing gear coupling according to claim 1, characterized in that: The length of the second outer bushing (3) is greater than the length of the first outer bushing (2), and the first outer bushing (2) is embedded in the second outer bushing (3). The outer bushing (3) has several limiting grooves (6) evenly distributed on its outer periphery. The outer bushing (3) has several fixed end blocks (7) fixed at one end near the limiting groove (6). The fixed end blocks (7) have horizontal threaded rods (8) fixed on them. The outer bushing (2) has several limiting blocks (10) that slide relative to the limiting groove (6) fixed on its outer periphery. The limiting blocks (10) and the threaded rods (8) are threadedly connected. The threaded rods (8) have two sets of sleeve nuts (9) threadedly connected to both sides of the limiting blocks (10).

3. The precision meshing gear coupling according to claim 2, characterized in that: The bottom outer side of the limiting block (10) is fixed with a limiting plate (12) that penetrates the outer bushing (3). The two sides of the limiting plate (12) are tightly attached to the inner wall of the limiting groove (6) and are relatively sealed.

4. The precision meshing gear coupling according to claim 3, characterized in that: One end of the inner shaft (1) is pressed with a cover plate (13), and the cover plate (13) and the outer shaft sleeve (3) are connected by bolts (11).

5. The precision meshing gear coupling according to claim 4, characterized in that: The cover plate (13) is provided with a slip ring (15), and the inner shaft (1) is provided with an annular groove (14) at one end near the cover plate (13). The slip ring (15) rotates relative to the groove (14).

6. The precision meshing gear coupling according to claim 5, characterized in that: The limiting plate (12) and the limiting groove (6) correspond one-to-one, and the length of the limiting plate (12) is the same as the length of the threaded rod (8).

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