A shaft connecting device based on the cooperation of internal and external splines and a spigot

Abstract

The utility model discloses a kind of shaft connecting device based on inner and outer spline and stop mouth cooperation, the utility model relates to spline shaft technical field.It includes spline shaft structure, spline shaft structure includes spline shaft body, the outer wall slidingly connected of spline shaft body has sleeve joint structure;Spline shaft structure further includes connecting shaft, the outer wall of connecting shaft is equipped with spline groove, the outer wall of connecting shaft is fixedly connected with stop mouth ring, the outer wall of connecting shaft is equipped with the groove that sticks, connecting shaft inner wall is fixedly connected with the outer wall of spline shaft body, sleeve joint structure includes sleeve joint axle, the side wall of sleeve joint axle inside is fixedly connected with sleeve joint block, the side wall of sleeve joint axle inside is equipped with the stop mouth that sticks, the side wall of sleeve joint axle inside is equipped with guide groove, by inner and outer spline and stop mouth cooperation design, realize transmission and accurate coaxial, spline connection limit relative rotation, ensure power stable transmission;Stop mouth cooperation uses slope guide, align axis, guarantee coaxiality, and then effectively reduce assembly shake.

Description

Technical Field

[0001] This utility model relates to the field of spline shaft technology, specifically a shaft connection device based on the fit between internal and external splines and a stop. Background Technology

[0002] In the field of mechanical manufacturing, especially for equipment with high requirements for transmission precision, such as precision machine tools, high-end industrial robots, and aero engines, the stability and coaxiality of shaft connections are crucial. These devices require precise power transmission during operation, and even minor deviations can lead to abnormal operation, affecting product quality and even causing safety issues. Traditional shaft connection methods frequently encounter problems in these high-precision environments. While common connection methods can achieve a certain degree of power transmission, they cannot guarantee precise coaxiality between shafts. Some simple socket connections lack effective positioning structures, making it difficult to ensure that the center lines of the two shafts are completely aligned during assembly, resulting in significant coaxiality deviations. This not only causes additional noise during equipment operation but also accelerates the wear of components such as bearings, shortening the equipment's service life. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a shaft connection device based on the fit of internal and external splines and stop. Through innovative connection structure design, it effectively solves the deficiencies of traditional shaft connection methods in terms of transmission stability and coaxiality, improves the stability and reliability of equipment operation, and meets the requirements of high-end manufacturing industry for precision transmission.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shaft connection device based on the fit between internal and external splines and a stop ring, comprising a spline shaft structure, wherein the spline shaft structure includes a spline shaft body, and a sleeve structure is slidably connected to the outer wall of the spline shaft body; the spline shaft structure further includes a connecting shaft, wherein a spline groove is formed on the outer wall of the connecting shaft, a stop ring is fixedly connected to the outer wall of the connecting shaft, and a fitting groove is formed on the outer wall of the connecting shaft, wherein the outer wall of the connecting shaft is fixedly connected to the outer wall of the spline shaft body.

[0007] Preferably, the socket structure includes a socket shaft, a socket block is fixedly connected to the inner side wall of the socket shaft, a fitting stop is provided on the inner side wall of the socket shaft, and a guide groove is provided on the inner wall of the socket shaft. Through the design of inner and outer splines and the stop, transmission and accurate coaxiality are achieved. The spline connection restricts relative rotation and ensures stable power transmission. The stop fit uses an inclined surface to guide and align the axis, ensuring coaxiality.

[0008] Preferably, the inner sidewall of the sleeve shaft is slidably connected to the outer wall of the connecting shaft, the stop ring is in contact with the sleeve shaft through a fitting stop, the outer wall of the sleeve block is slidably connected to the outer wall of the connecting shaft through a spline groove, and the outer wall of the connecting shaft is in contact with the inner wall of the sleeve shaft through a fitting groove.

[0009] (III) Beneficial Effects

[0010] This utility model provides a shaft connection device based on the fit between internal and external splines and a stop. It has the following advantages:

[0011] (i) The shaft connection device achieves accurate coaxiality of transmission through the design of internal and external splines and stop joints. The spline connection restricts relative rotation and ensures stable power transmission.

[0012] (ii) The stop fit utilizes the inclined surface for guidance, aligns the axis, and ensures coaxiality, thereby effectively reducing assembly shaking and improving the stability of equipment operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the spline shaft structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the socket structure of this utility model.

[0017] In the figure: 1. Splined shaft structure; 2. Socket structure; 11. Splined shaft body; 12. Connecting shaft; 13. Spline groove; 14. Stop ring; 15. Fitting groove; 21. Socketed shaft; 22. Socketed block; 23. Fitting stop; 24. Guide groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4This utility model provides a technical solution: a shaft connection device based on the fit of internal and external splines and a stop, including a spline shaft structure 1, the spline shaft structure 1 including a spline shaft body 11, the outer wall of the spline shaft body 11 being slidably connected to a sleeve structure 2; the spline shaft structure 1 also includes a connecting shaft 12, the outer wall of the connecting shaft 12 being provided with a spline groove 13, the outer wall of the connecting shaft 12 being fixedly connected with a stop ring 14, the outer wall of the connecting shaft 12 being provided with a fitting groove 15, and the outer wall of the connecting shaft 12 being fixedly connected to the outer wall of the spline shaft body 11.

[0020] The socket structure 2 includes a socket shaft 21, with a socket block 22 fixedly connected to the inner side wall of the socket shaft 21. The inner side wall of the socket shaft 21 has a fitting stop 23 and a guide groove 24. The spline shaft body 11 in the spline shaft structure 1 serves as the basic connection, and the connecting shaft 12 fixedly connected to its outer wall is the component for transmission and positioning. The outer wall of the connecting shaft 12 has a spline groove 13, which cooperates with the socket block 22 of the socket structure 2 to realize the internal and external spline connection. The fixedly connected stop ring 14 cooperates with the fitting stop 23 of the socket structure 2 to ensure coaxiality.

[0021] The inner sidewall of the sleeve shaft 21 is slidably connected to the outer wall of the connecting shaft 12. The stop ring 14 contacts the sleeve shaft 21 through the fitting stop 23. The outer wall of the sleeve block 22 is slidably connected to the outer wall of the connecting shaft 12 through the spline groove 13. The outer wall of the connecting shaft 12 contacts the inner wall of the sleeve shaft 21 through the fitting groove 15. During assembly, the inner sidewall of the sleeve shaft 21 of the sleeve structure 2 is slidably connected to the outer wall of the connecting shaft 12, and the sleeve block 22 slides into the spline groove 13. During the sliding process, due to the tooth profile of the spline... The relative rotation between the sleeve shaft 21 and the connecting shaft 12 is restricted, thus achieving effective power transmission and ensuring transmission stability. The stop ring 14 contacts the sleeve shaft 21 through the fitting stop 23. Due to the inward inclined slope design of the stop ring 14, the fitting stop 23 slides into the stop ring 14, ensuring the alignment of the axes of the sleeve shaft 21 and the connecting shaft 12, thereby ensuring the alignment of the axes of the sleeve shaft 21 and the spline shaft body 11. The stop fit between the two stabilizes and controls the relative position of the sleeve shaft 21 and the connecting shaft 12.

[0022] In use, the shaft connection device based on the mating of internal and external splines and stop is mainly composed of a spline shaft structure 1 and a sleeve structure 2 working together. The spline shaft body 11 in the spline shaft structure 1 plays a basic connection role, and the connecting shaft 12 fixedly connected to its outer wall is the component that realizes transmission and positioning. The outer wall of the connecting shaft 12 has a spline groove 13, which mates with the sleeve block 22 of the sleeve structure 2 to realize the internal and external spline connection. The fixedly connected stop ring 14 mates with the fitting stop 23 of the sleeve structure 2 to ensure coaxiality. The fitting groove 15 is used to contact the inner wall of the sleeve shaft 21.

[0023] During assembly, the inner sidewall of the sleeve shaft 21 of the sleeve structure 2 slides into the outer wall of the connecting shaft 12, and the sleeve block 22 slides into the spline groove 13. During the sliding process, due to the toothed fit of the spline, the relative rotation of the sleeve shaft 21 and the connecting shaft 12 is restricted, realizing the effective transmission of power and ensuring the stability of the transmission. The stop ring 14 contacts the sleeve shaft 21 through the fitting stop 23. Due to the inward inclined slope design of the stop ring 14, the fitting stop 23 slides into the stop ring 14 to ensure the alignment of the axes of the sleeve shaft 21 and the connecting shaft 12, thereby ensuring the alignment of the axes of the sleeve shaft 21 and the spline shaft body 11. The fit of the two stops stably controls the relative position of the sleeve shaft 21 and the connecting shaft 12, keeping the center lines of the two shafts consistent, thereby ensuring the coaxiality of the front and rear shafts. The outer wall of the connecting shaft 12 contacts the inner wall of the sleeve shaft 21 through the fitting groove 15, further enhancing the stability of the connection and reducing shaking after assembly.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shaft connection device based on the cooperation of internal and external splines with a spigot, comprising a splined shaft structure (1), which comprises a splined shaft body (11), characterised in that: The outer wall of the spline shaft body (11) is slidably connected with a sleeve structure (2); The spline shaft structure (1) also includes a connecting shaft (12), the outer wall of the connecting shaft (12) is provided with a spline groove (13), a stop ring (14) is fixedly connected to the outer wall of the connecting shaft (12), and a fitting groove (15) is provided on the outer wall of the connecting shaft (12).

2. A shaft coupling device based on the cooperation of internal and external splines with a spigot according to claim 1, characterized in that: The outer wall of the connecting shaft (12) is fixedly connected to the outer wall of the spline shaft body (11).

3. The shaft coupling device based on the cooperation of internal and external splines with a spigot according to claim 1, characterized in that: The socket structure (2) includes a socket shaft (21), a socket block (22) is fixedly connected to the inner side wall of the socket shaft (21), a fitting stop (23) is provided in the inner side wall of the socket shaft (21), and a guide groove (24) is provided in the inner side wall of the socket shaft (21).

4. A shaft coupling device based on the cooperation of internal and external splines with a spigot according to claim 3, characterized in that: The inner sidewall of the sleeve shaft (21) is slidably connected to the outer wall of the connecting shaft (12), and the stop ring (14) contacts the sleeve shaft (21) through the fitting stop (23).

5. A shaft coupling device based on the cooperation of internal and external splines with a collar according to claim 3, characterized in that: The outer wall of the socket block (22) is slidably connected to the outer wall of the connecting shaft (12) through a spline groove (13).

6. A shaft coupling device based on the cooperation of internal and external splines with a spigot according to claim 3, characterized in that: The outer wall of the connecting shaft (12) contacts the inner wall of the sleeve shaft (21) through the fitting groove (15).

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