High-precision double-step rotating turning shaft
By designing a limit structure on the shaft seat, the problem of easy deflection of shaft parts after turning is solved, and the firm connection between the shaft seat and other parts is achieved and the transmission stability is achieved.
Patent Information
- Application Number
- CN202422229690.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-12
AI Technical Summary
After turning and processing of existing shaft parts, the smooth surface may easily lead to deflection during connection, poor firmness and unstable transmission.
A high-precision double-step rotating turning shaft is designed, and by providing a limiting structure on the shaft seat, including reinforcement ribs one and reinforcement ribs two, a ring-shaped structure is formed to enhance the strength of the shaft seat and prevent the parts from being offset when the shaft seat and the shaft rod are connected.
It effectively enhances the firmness of the shaft seat when connecting to other parts, prevents deflection, and ensures the stability of the transmission connection.
Smart Images
Figure CN223035498U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shaft parts, in particular to a high-precision double-step rotating turning shaft. Background Technique
[0002] In electronic components, shaft parts are generally processed by turning, and as common metal connectors, they are widely used. However, when the current shaft parts are completed in turning processing, their surfaces are mostly smooth, and it is easy to deflect when connected to other parts, and the overall firmness is poor, which easily leads to unstable transmission.
[0003] Therefore, we propose a high-precision double-step rotating turning shaft to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a high-precision double-step rotating turning shaft to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A high-precision double-step rotating turning shaft includes a shaft rod and a shaft seat. One end of the shaft seat far from the shaft rod is provided with a shaft cover, and the outer diameters of the shaft rod, the shaft seat, and the shaft cover increase in sequence to form a double-step structure. A limiting structure is arranged on the outer circumferential side wall of the shaft seat. The limiting structure is composed of a first reinforcing rib and a second reinforcing rib, and both the first reinforcing rib and the second reinforcing rib protrude from the outer circumferential side wall of the shaft seat. The first reinforcing rib is parallel to the axis of the shaft seat, and the first reinforcing ribs are distributed at equal intervals along the circumferential direction of the shaft seat. The second reinforcing rib adopts an annular structure, and the second reinforcing rib is cross-connected between each first reinforcing rib.
[0007] In a further embodiment, several protruding third reinforcing ribs are arranged on the end face of the shaft cover near the shaft seat that extends out of the shaft seat.
[0008] In a further embodiment, the third reinforcing ribs are parallel to the radial direction of the shaft cover, and the third reinforcing ribs and the first reinforcing ribs are spaced alternately.
[0009] In a further embodiment, an assembly hole is opened at the center of the end face of the shaft seat near the shaft rod, and a connecting shaft that is in interference fit with the assembly hole is arranged at the end of the shaft rod.
[0010] In a further embodiment, both the assembly hole and the connecting shaft adopt a conical structure.
[0011] In a further embodiment, a limiting hole is arranged on the periphery of the end face of the shaft seat near the shaft rod, and a limiting block that is in interference fit with the limiting hole is arranged on the end face of the shaft rod that is in contact with the shaft seat.
[0012] In a further embodiment, both the limiting hole and the limiting block are of a conical structure.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] By turning a limiting structure on the shaft seat in the present utility model, among which, the first reinforcing rib in the limiting structure can not only enhance the strength of the shaft seat itself, but also prevent circumferential offset between the connected part and the shaft seat, while the second reinforcing rib in the limiting structure can not only further enhance the strength of the shaft seat itself, but also prevent axial offset between the connected part and the shaft seat, thereby effectively increasing the firmness when the shaft seat is connected to other parts and ensuring the stability of the transmission connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic top three-dimensional structure diagram of the present utility model;
[0016] Figure 2 is a schematic bottom three-dimensional structure diagram of the present utility model;
[0017] Figure 3 is a schematic front cross-sectional structure diagram of the present utility model;
[0018] Figure 4 is a schematic bottom planar structure diagram of the shaft seat of the present utility model.
[0019] In the figure: 1, shaft rod; 11, connecting shaft; 12, limiting block; 2, shaft seat; 21, first reinforcing rib; 22, second reinforcing rib; 23, assembly hole; 24, limiting hole; 3, shaft cover; 31, third reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figure 1-2 , a high-precision double-step rotating turning shaft, including a shaft rod 1 and a shaft seat 2. Among them, the shaft rod 1 and the shaft seat 2 are coaxial. The shaft seat 2 is used for sleeving with other parts. One end of the shaft seat 2 away from the shaft rod 1 is provided with a shaft cover 3. The shaft cover 3 is also coaxial with the shaft seat 2. The outer diameters of the shaft rod 1, the shaft seat 2, and the shaft cover 3 increase in sequence to form a double-step structure. A limiting structure is provided on the outer circumferential side wall of the shaft seat 2. The limiting structure is composed of a first reinforcing rib 21 and a second reinforcing rib 22. Among them, both the first reinforcing rib 21 and the second reinforcing rib 22 protrude from the outer circumferential side wall of the shaft seat 2, enhancing the strength of the shaft seat 2 itself. The first reinforcing rib 21 is parallel to the axis of the shaft seat 2, and the first reinforcing rib 21 is evenly distributed at intervals along the circumference of the shaft seat 2, preventing circumferential deviation between the connected part and the shaft seat 2. The second reinforcing rib 22 adopts an annular structure, and the second reinforcing rib 22 is cross-connected between each first reinforcing rib 21, preventing axial deviation between the connected part and the shaft seat 2, effectively increasing the firmness when the shaft seat 2 itself is connected to other parts and ensuring the stability of the transmission connection.
[0024] Furthermore, please refer to Figure 2 , on the end face of the end of the shaft cover 3 close to the shaft seat 2 that extends out of the shaft seat 2, there are a number of protruding third reinforcing ribs 31. The third reinforcing ribs 31 enhance the strength of the shaft cover 3 itself. At the same time, the third reinforcing ribs 31 are parallel to the radius of the shaft cover 3, and the third reinforcing ribs 31 are alternately spaced from the first reinforcing ribs 21. When the connected part is close to the shaft cover 3, the first reinforcing ribs 21 can increase the friction at the connection, thereby further preventing circumferential deflection.
[0025] Please refer to Figure 3-4, considering that when a part of the shaft seat 2 or the shaft rod 1 is damaged, the whole needs to be replaced, resulting in a relatively high cost. Therefore, the shaft seat 2 and the shaft cover 3 are integrally turned, and the shaft rod 1 is separately turned. At the same time, an assembly hole 23 is provided at the center of the end face of the shaft seat 2 close to the shaft rod 1, and a connecting shaft 11 that is in interference fit with the assembly hole 23 is provided at the end of the shaft rod 1. The interference fit connection between the shaft seat 2 and the shaft rod 1 can be disassembled and assembled. When damaged, only a part needs to be replaced. Further, both the assembly hole 23 and the connecting shaft 11 are of a conical structure, making it more convenient for them to be butted together.
[0026] Please refer to Figure 3-4 , in order to improve the stability of the connection between the shaft seat 2 and the shaft rod 1, a limiting hole 24 is provided on the periphery of the end face of the shaft seat 2 close to the shaft rod 1, and a limiting block 12 that is in interference fit with the limiting hole 24 is provided on the end face of the shaft rod 1 that fits with the shaft seat 2. Thus, the shaft rod 1 is limited by the limiting hole 24 and the limiting block 12, which is convenient for quick positioning and at the same time prevents circumferential deflection. Further, both the limiting hole 24 and the limiting block 12 are of a conical structure, making it more convenient for them to be butted together.
[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-precision double-step rotary turning shaft, comprising a shaft rod (1) and a shaft seat (2), characterized in that: A shaft cover (3) is provided at one end of the shaft seat (2) away from the shaft rod (1), and the outer diameters of the shaft rod (1), the shaft seat (2) and the shaft cover (3) are increased successively to form a double-step structure. A limiting structure is provided on the outer circumferential side wall of the shaft seat (2), and the limiting structure is composed of a reinforcing rib (21) and a reinforcing rib (22). The reinforcing rib (21) and the reinforcing rib (22) both protrude from the outer circumferential side wall of the shaft seat (2). The reinforcing rib (21) is axially parallel to the shaft seat (2), and the reinforcing rib (21) is equidistantly distributed along the circumference of the shaft seat (2). The reinforcing rib (22) is an annular structure, and the reinforcing rib (22) is cross-connected between the reinforcing ribs (21).
2. A high-precision double-step rotary turning shaft according to claim 1, characterized in that: A plurality of protruding reinforcing ribs (31) are provided on an end surface of the shaft cover (3) which is close to the shaft seat (2) and extends out of the shaft seat (2).
3. A high-precision double-step rotary turning shaft according to claim 2, characterized in that: The reinforcing rib three (31) is parallel to the radial direction of the shaft cover (3), and the reinforcing rib three (31) and the reinforcing rib one (21) are alternately spaced.
4. The high-precision double-step rotating turning shaft according to claim 1, characterized in that: The shaft seat (2) is provided with an assembly hole (23) at the center of one end surface close to the shaft rod (1), and a connecting shaft (11) which is interference-fitted with the assembly hole (23) is provided on the end of the shaft rod (1).
5. A high-precision double-step rotary turning shaft according to claim 4, characterized in that: The assembly hole (23) and the connecting shaft (11) both have a conical structure.
6. The high-precision double-step rotary turning shaft according to claim 1, characterized in that: A limiting hole (24) is provided on the periphery of an end surface of the shaft seat (2) close to the shaft rod (1), and a limiting block (12) which is interference-fitted with the limiting hole (24) is provided on the end surface where the shaft rod (1) and the shaft seat (2) are in contact.
7. A high-precision double-step rotary turning shaft according to claim 6, characterized in that: The limiting hole (24) and the limiting block (12) both have a conical structure.