Shaft end limiting clamping plate

By designing a shaft end limiting plate, the axial movement of the shaft is restricted by the groove and the plate structure, thus solving the problem of shaft disengagement risk and improving the stability and safety of the mechanical system.

CN224003016UActive Publication Date: 2026-03-17JULI SLING STOCK CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In the prior art, the hinged connection between the shaft and the connected parts cannot reliably restrict the axial movement of the shaft, which leads to the risk of the shaft coming out, affecting the stability and safety of the mechanical system, especially increasing the risk under vibration and impact loads.

Method used

Design a shaft end limiting plate. By setting a groove and a semi-circular clip at the shaft end, and connecting the full-circular clip and the semi-circular clip with bolts and spring washers, the axial degree of freedom is restricted while the rotational degree of freedom is retained, thereby realizing the shaft limiting function.

Benefits of technology

It effectively limits the axial displacement of the shaft, improves the stability and safety of the mechanical system, and has a simple structure that is easy to install and disassemble.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224003016U_ABST
    Figure CN224003016U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of mechanical manufacturing, and discloses a shaft end limiting clamping plate which comprises a shaft end part, a groove is formed in the shaft end part, two sets of semicircular clamps are attached to the interior of the groove, and a spring washer is attached to the end of the shaft end part. According to the shaft end limiting clamping plate, the rotation freedom degree of a shaft is reserved at the same time, if the shaft moves in the axial direction at the moment, a semicircular clamp interferes with a connected face, axial displacement of the shaft is limited, the limiting function of the shaft end clamping plate is achieved, a spring washer is added for bolt connection to achieve the anti-loosening effect, the semicircular clamp is limited in the axial direction through a groove step, and the anti-loosening effect is achieved. Meanwhile, the two semicircular clamps and the whole circle clamp are connected into a whole, at the moment, the whole circle clamp and the two semicircular clamps have rotation freedom degrees, the freedom degree of horizontal movement is eliminated, the inner side faces of the semicircular clamps and connected faces utilize the hard interference principle, the limiting design requirement of the connecting shaft is met, and the structure has the effects of being simple and convenient to mount and dismount.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a shaft end limiting plate. Background Technology

[0002] Shafts are widely used in mechanical design. They serve to connect and transmit force. The connection between the shaft and the connected parts is usually a hinge. However, the hinged connection may not be able to reliably and completely restrict the axial movement of the shaft under actual working conditions, which may lead to the risk of the shaft coming off and affecting the stability and safety of the mechanical system. This risk may increase, especially after being subjected to large vibrations, impact loads, or after long-term operation.

[0003] Based on this, the present invention provides a shaft end limiting plate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a shaft end limiting plate, which has the advantages of utilizing the structure and function of the shaft, preserving the axial rotational freedom during shaft operation, and restricting the axial horizontal freedom, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a shaft end limiting plate, including a shaft end portion, the shaft end portion is provided with a groove, two sets of semi-circular clips are attached inside the groove, a spring washer is attached to the end of the shaft end portion, a full-circular clip is attached to the outer arc surface of the spring washer, the semi-circular clips are provided with four sets of screw holes, the full-circular clips are provided with four sets of screw holes, and bolts are threaded into the four sets of screw holes and screw holes.

[0006] Preferably, the diameters of screw hole one and screw hole two are the same.

[0007] Preferably, the circular clip is located at the end of the shaft end portion.

[0008] Preferably, the opposite sides of the semicircular card and the full-circular card are in a fitted state, and the diameter values ​​of the outer surfaces of the two sets of semicircular cards and full-circular cards are the same.

[0009] Preferably, the radius of the semicircular card is smaller than the radius of the full-circular card.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This shaft end limiting plate allows a connecting shaft with an annular groove at its end to be inserted into the connected component. This groove extends beyond the outer surface of the connected component. Two semi-circular clips are then inserted into the annular groove at the shaft end, and a full-circular clip is inserted into the shaft end. The full-circular clip is connected to the semi-circular clips via bolts and spring washers. This restricts the axial freedom of the semi-circular clips while preserving the rotational freedom of the shaft. If the shaft moves axially, the semi-circular clips interfere with the connected surface, limiting the axial displacement of the shaft and achieving the limiting function of the shaft end plate. The bolt connection incorporates spring washers to prevent loosening. The groove step provides axial limiting for the semi-circular clips, and the two semi-circular clips are connected to the full-circular clip as a single unit. At this point, the full-circular clip and the two semi-circular clips have rotational freedom, while horizontal movement is eliminated. The inner surface of the semi-circular clips interacts with the connected surface using the principle of hard interference to achieve the limiting design requirements of the connecting shaft. This structure is simple and easy to install and disassemble. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0013] Figure 2 This is a schematic diagram of the shaft end structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the two sets of semi-circular card structures of this utility model;

[0015] Figure 4 This is a schematic diagram of the circular card structure of this utility model.

[0016] In the diagram: 1. Shaft end; 2. Semi-circular clip; 201. Screw hole one; 3. Full-circular clip; 301. Screw hole two; 4. Spring washer; 5. Bolt; 6. Groove. Detailed Implementation

[0017] 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.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Shafts are used to support rotating mechanical bodies, reduce friction, and ensure rotational accuracy. Their main functions and applications are as follows:

[0020] I. Support and Rotation Guidance:

[0021] The main function of bearings is to support rotating parts of machinery, ensuring that rotating components can rotate smoothly and accurately. Through bearings, the rotational movement of the shaft can proceed smoothly, and the bearings can also bear the load transmitted from the shaft to the frame.

[0022] II. Reducing friction and energy consumption:

[0023] Through their unique structural design and material selection, bearings can significantly reduce the coefficient of friction during mechanical rotation. This reduced friction not only makes rotation smoother but also effectively reduces energy consumption and improves the operating efficiency of mechanical equipment.

[0024] III. Maintain rotational accuracy:

[0025] The manufacturing precision and material selection of bearings are crucial for maintaining the rotational accuracy of machinery. High-quality bearings ensure that rotating parts maintain high rotational accuracy even after prolonged operation, which is especially important for precision machinery and high-speed rotating equipment.

[0026] IV. Bearing loads and protecting rotating parts:

[0027] Bearings can withstand axial and radial loads, protecting rotating parts from damage. Under heavy loads or impact loads, bearings can absorb and disperse these forces, ensuring the stable operation of mechanical equipment.

[0028] V. Sealing and lubrication functions:

[0029] Many bearing designs incorporate sealing devices to prevent dust, water, acid fumes, and other contaminants from entering the bearing, thus maintaining its proper function and extending its service life. Furthermore, bearing lubrication is also crucial; it reduces internal friction and wear, prevents burning and overheating, and further extends the bearing's lifespan.

[0030] VI. Wide range of applications:

[0031] Bearings are widely used in various mechanical equipment due to their unique performance and functions, such as metallurgy, wind power, mining machinery, aerospace, and automotive parts. Different types of bearings are suitable for different application scenarios and needs. For example, deep groove ball bearings are suitable for gearboxes and instruments; thrust ball bearings are suitable for components that bear axial loads on one side; and cylindrical roller bearings are suitable for large and medium-sized electric motors, locomotives, and rolling stock.

[0032] In conclusion, bearings play a vital role in mechanical equipment. They not only support and guide the rotational motion of rotating parts, but also reduce friction, reduce energy consumption, maintain rotational accuracy, bear loads, and protect rotating parts. Therefore, when selecting and using bearings, it is necessary to take into account the specific application scenarios and requirements.

[0033] Shafts are widely used in mechanical design. They serve to connect and transmit force. The connection between the shaft and the connected parts is usually a hinge. However, the hinged connection may not be able to reliably and completely restrict the axial movement of the shaft under actual working conditions, which may lead to the risk of the shaft coming off and affecting the stability and safety of the mechanical system. This risk may increase, especially after being subjected to large vibrations, impact loads, or after long-term operation.

[0034] Please see Figure 1-4 A shaft end limiting clamp includes a shaft end portion 1, which has a groove 6. Two sets of semi-circular clamps 2 are fitted inside the groove 6. A spring washer 4 is fitted to the end of the shaft end portion 1, and a full-circular clamp 3 is fitted to the outer arc surface of the spring washer 4. The semi-circular clamps 2 have four sets of screw holes 201, and the full-circular clamp 3 has four sets of screw holes 301. Bolts 5 are threaded into the four sets of screw holes 201 and 301. The diameters of the screw holes 201 and 301 are the same. The full-circular clamp 3 is located at the end of the shaft end portion 1, with the opposite sides of the semi-circular clamps 2 and 3 in a fitted state. The outer diameters of the two sets of semi-circular clamps 2 and 3 are the same, and the radius of the semi-circular clamp 2 is smaller than the radius of the full-circular clamp 3. A connecting shaft with an annular groove 6 on the shaft end portion 1 is inserted into the connected component, with the grooved shaft end extending beyond the outer surface of the connected component. The semi-circular clip 2 is inserted into the annular groove 6 of the shaft end portion 1, and the full-circular clip 3 is inserted into the shaft end portion 1. The full-circular clip 3 and the semi-circular clip 2 are connected by bolts 5 and spring washers 4. At this time, the axial degree of freedom of the semi-circular clip 2 is restricted, while the rotational degree of freedom of the shaft is retained. If the shaft moves axially, the semi-circular clip 2 interferes with the connected surface, restricting the axial displacement of the shaft and realizing the function of the shaft end plate limiting. The bolt 5 is connected with spring washers 4 to prevent loosening. The groove 6 step is used to limit the axial movement of the semi-circular clip 2. At the same time, the two semi-circular clips 2 and the full-circular clip 3 are connected as a whole. At this time, the full-circular clip 3 and the two semi-circular clips 2 have rotational degree of freedom and the horizontal movement degree of freedom is eliminated. The inner side of the semi-circular clip 2 and the connected surface use the principle of hard interference to realize the limiting design requirements of the connecting shaft. This structure has the advantages of simple structure and convenient installation and disassembly.

[0035] The working principle is as follows: the connecting shaft with the annular groove 6 on the shaft end part 1 is inserted into the connected part. The shaft end with this groove extends beyond the outer surface of the connected part. Two semi-circular clips 2 are inserted into the annular groove 6 on the shaft end part 1. The full-circular clip 3 is inserted into the shaft end part 1. The full-circular clip 3 is connected to the semi-circular clips 2 by bolts 5 and spring washers 4. At this time, the axial degree of freedom of the semi-circular clips 2 is restricted, while the rotational degree of freedom of the shaft is retained. If the shaft moves axially, the semi-circular clips 2 will interfere with the connected surface, restricting the axial displacement of the shaft and realizing the function of the shaft end plate limiting.

[0036] 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 process, method, article, or apparatus.

[0037] 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 end limiting plate, characterized in that, The application relates to a shaft end part (1) provided with grooves (6), the inner part of the grooves (6) being fitted with two groups of semicircle clamps (2), the end of the shaft end part (1) being fitted with spring washers (4), the outer arc surface of the spring washers (4) being fitted with whole circle clamps (3), the semicircle clamps (2) being provided with four groups of screw holes one (201), the whole circle clamps (3) being provided with four groups of screw holes two (301), the inner parts of the four groups of screw holes one (201) and screw holes two (301) being threadedly connected with bolts (5).

2. The shaft end limiting plate according to claim 1, characterized in that: The diameter values of the screw holes one (201) and screw holes two (301) are consistent.

3. The shaft end stop plate of claim 1, wherein: The whole circle clamps (3) are located at the end of the shaft end part (1).

4. The shaft end stop plate of claim 1, wherein: The opposite sides of the semicircle clamps (2) and the whole circle clamps (3) are in a fitted state, and the diameter values of the outer surfaces of the two groups of semicircle clamps (2) and whole circle clamps (3) are consistent.

5. The shaft end stop plate of claim 1, wherein: The radius value of the semicircle clamps (2) is smaller than the radius value of the whole circle clamps (3).