Anti-deviation structure of shaft

Abstract

The utility model relates to the technical field of shaft installation, in particular to an anti-deviation structure of a shaft, which comprises a fixed seat, an anti-deviation component, the shaft and a shaft installation part, the anti-deviation assembly is fixedly installed on the shaft installation component through the fixing base, the shaft is rotatably installed on the shaft installation component, the end of the shaft is limited to the anti-deviation assembly, and the end of the shaft and the anti-deviation assembly are installed in a relative rotation mode. The problems that a shaft in mechanical equipment is prone to deviation, and a rear shaft cannot rotate normally under the deviation condition are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft installation, in particular to a shaft anti-deviation structure. Background Art

[0002] The shaft is one of the indispensable parts in mechanical transmission. It can be installed in various types of machinery to realize mechanical transmission function. However, since the shaft is generally installed on supporting components such as the shaft frame, and then the supporting components are fixed to the mechanical equipment by fastening screws, when the mechanical equipment works in a harsh environment for a long time or the mechanical equipment is improperly maintained, the fastening screws of the supporting components will loosen due to mechanical vibration or shaft vibration, resulting in shaft offset, bearing offset and other shaft-related offset conditions, making the mechanical equipment function invalid and seriously affecting the stability and operating efficiency of the mechanical equipment; especially in the complex and changeable operating environment of the foreign port jacking machine, the shaft of the jacking component is more prone to offset due to the greater load it bears. Utility Model Content

[0003] In view of the above-mentioned defects, the purpose of the present invention is to propose an anti-deflection structure for a shaft, which solves the problem that the shaft of a mechanical device is prone to deflection and the shaft cannot rotate normally after deflection occurs.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A shaft anti-misalignment structure comprises a fixed seat, an anti-misalignment assembly, a shaft and a shaft mounting component; the fixed seat fixedly mounts the anti-misalignment assembly on the shaft mounting component, the shaft is rotatably mounted on the shaft mounting component, the end of the shaft is limited to the anti-misalignment assembly, and the end of the shaft and the anti-misalignment assembly are relatively rotatably mounted.

[0006] Furthermore, the anti-deflection assembly includes a bearing and a snap-fit ​​component; the fixing seat is fixedly mounted on the shaft mounting component, and the mounting hole of the fixing seat and the outer ring of the bearing are installed in an interference fit;

[0007] The end of the shaft is narrowed to form an axial step, the end of the shaft passes through the inner ring of the bearing, the axial step abuts against the bottom surface of the bearing, the clip is snap-connected to the top surface of the bearing and the end of the shaft, and the clip abuts against the top surface of the bearing.

[0008] Furthermore, an axial locking interface is provided at the end of the shaft corresponding to the locking member; and the locking member is locked in the axial locking interface.

[0009] Furthermore, the end of the shaft and the inner ring of the bearing are installed with interference fit.

[0010] Furthermore, the fastener is a clip.

[0011] Furthermore, the snap fastener is made of spring steel.

[0012] Furthermore, a fixing hole is opened on the peripheral side or corner of the fixing seat, and a fastening screw is passed through the fixing hole to fix the fixing seat to the shaft mounting component, and the bottom surface of the fixing seat is in contact with the shaft mounting component.

[0013] The technical solution provided by the present invention may include the following beneficial effects: after the anti-misalignment component is fixedly installed on the shaft mounting component with a fixed seat, the end of the shaft rotatably installed on the shaft mounting component will be limited to the anti-misalignment component, and the end of the shaft and the anti-misalignment component are installed for relative rotation; thus, when the component used to support the shaft in the shaft mounting component becomes loose, resulting in shaft offset or bearing offset connected to the shaft and other shaft-related misalignment conditions, the anti-misalignment component located at the end of the shaft can play a supporting and relative rotation role, replacing the supporting component of the shaft and the bearing connected to the shaft, and maintaining the normal rotation of the shaft; and based on the relative rotation relationship between the end of the shaft and the anti-misalignment component, when there is no misalignment, it will not affect the normal rotation of the shaft, and can also play a certain auxiliary supporting role, thereby reducing the occurrence of misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an anti-deflection structure of a shaft in one embodiment of the present utility model.

[0015] Figure 2 Yes Figure 1 A top view of an anti-deflection structure of a shaft is shown.

[0016] Among them: a fixing seat 1, an anti-deflection component 2, a shaft 3, a shaft mounting component 4, a bearing 21, a snap fitting 22, an axial step 31, and an axial snap interface 32. DETAILED DESCRIPTION

[0017] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0019] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0020] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0021] The following combination Figures 1 to 2 , describing an anti-deflection structure of a shaft in an embodiment of the present utility model.

[0022] A shaft anti-misalignment structure includes a fixed seat 1, an anti-misalignment component 2, a shaft 3 and a shaft mounting component 4; the fixed seat 1 fixes the anti-misalignment component 2 to the shaft mounting component 4, the shaft 3 is rotatably mounted on the shaft mounting component 4, the end of the shaft 3 is limited to the anti-misalignment component 2, and the end of the shaft 3 and the anti-misalignment component 2 are relatively rotatably mounted.

[0023] The present invention proposes a preferred embodiment of a shaft anti-deflection structure, such as Figures 1 to 2As shown, after the anti-deviation component 2 is fixedly installed on the shaft mounting component 4 by using the fixing seat 1, the end of the shaft 3 installed on the shaft mounting component 4 will be limited to the anti-deviation component 2, and the end of the shaft 3 and the anti-deviation component 2 are installed for relative rotation; thus, when the component used to support the shaft 3 in the shaft mounting component 4 is loose, resulting in the occurrence of shaft 3 offset or the bearing connected to the shaft 3 offset and other offset conditions related to the shaft 3, the anti-deviation component 2 located at the end of the shaft 3 can play a supporting and relative rotation role, replacing the supporting component of the shaft 3 and the bearing connected to the shaft 3, to maintain the normal rotation of the shaft 3; and based on the relative rotation relationship between the end of the shaft 3 and the anti-deviation component 2, when there is no offset, it will not affect the normal rotation of the shaft 3, and can also play a certain auxiliary supporting role to reduce the occurrence of offset.

[0024] Furthermore, the anti-deflection assembly 2 includes a bearing 21 and a snap-fit ​​member 22; the fixing seat 1 is fixedly mounted on the shaft mounting component 4, and the mounting hole of the fixing seat 1 and the outer ring of the bearing 21 are installed in an interference fit;

[0025] The end of the shaft 3 is narrowed to form an axial step 31, and the end of the shaft 3 passes through the inner ring of the bearing 21. The axial step 31 abuts against the bottom surface of the bearing 21. The snap-fit ​​part 22 is snap-connected to the end of the shaft 3 on the top surface of the bearing 21, and the snap-fit ​​part 22 abuts against the top surface of the bearing 21.

[0026] In this embodiment, because the anti-misalignment component 2 located at the end of the shaft 3 replaces the supporting component of the shaft 3 and the bearing connected to the shaft 3 to play a supporting and relative rotation role and maintain the normal rotation of the shaft 3, the anti-misalignment component 2 is preferably composed of a bearing 21 and a snap 22, and the bearing 21 mainly plays a supporting and relative rotation role. The mounting hole of the fixed seat 1 and the outer ring of the bearing 21 are installed through interference fit, so that the combination of the fixed seat 1 and the bearing 21 is tighter and can withstand a larger load, which is suitable for large-load application scenarios such as jacking machines; at the same time, the axial step 31 and the snap 22 are used to limit the bearing 21 to prevent the shaft 3 from detaching from the anti-misalignment component 2, and the limiting relationship formed by the snap connection of the snap 22 makes it easier to install the end of the shaft 3 on the anti-misalignment component 2.

[0027] Furthermore, an axial locking interface 32 is formed at the end of the shaft 3 corresponding to the locking member 22 ; the locking member 22 is locked in the axial locking interface 32 .

[0028] In this embodiment, in order to strengthen the snap connection relationship between the snap member 22 and the end of the shaft 3 and make the snap connection more secure, an axial snap interface 32 is opened at the end of the shaft 3 corresponding to the snap member 22 for snapping, which can effectively prevent the snap member 22 from falling off due to rotation or vibration of the shaft 3.

[0029] Furthermore, the end of the shaft 3 and the inner ring of the bearing 21 are installed with interference fit.

[0030] In this embodiment, in order to make the end of the shaft 3 and the bearing 21 more tightly coupled and able to withstand a greater load, the end of the shaft 3 and the inner ring of the bearing 21 are preferably installed using an interference fit.

[0031] Furthermore, the fastener 22 is a clip.

[0032] In this embodiment, in order to facilitate the installation of the fastener 22 on the end of the shaft 3, the fastener 22 is preferably a retaining spring, which can be quickly engaged with the axial retaining interface 32 through the notch of the retaining spring.

[0033] Furthermore, the latch 22 is made of spring steel.

[0034] In this embodiment, the fastener 22 is preferably a retaining spring. The fastener 22 needs to maintain high rigidity and withstand large loads while also being elastic so that the retaining spring can be elastically connected to the axial retaining interface 32 through the notch. Therefore, the fastener 22 is preferably made of spring steel.

[0035] Furthermore, fixing holes are opened on the circumference or corners of the fixing seat 1, and the fixing seat 1 is fixed to the shaft mounting component 4 through the fixing holes by fastening screws, and the bottom surface of the fixing seat 1 is in contact with the shaft mounting component 4.

[0036] In this embodiment, in order to ensure that the anti-misalignment component 2 is firmly installed on the shaft mounting component 4, the fixed seat 1 on which the anti-misalignment component 2 is installed is preferably fixed to the shaft mounting component 4 by fastening screws, and the bottom surface of the fixed seat 1 is made to fit the shaft mounting component 4. The force on the fixed seat 1 will be more uniform and will not easily loosen.

[0037] Other structures and operations of the anti-deviation structure of a shaft according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0038] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shaft anti-deflection structure, characterized by: It includes a fixed seat, an anti-deflection component, a shaft and a shaft mounting component; the fixed seat fixes the anti-deflection component to the shaft mounting component, the shaft is rotatably mounted on the shaft mounting component, the end of the shaft is limited to the anti-deflection component, and the end of the shaft and the anti-deflection component are relatively rotatably mounted.

2. The anti-deflection structure of a shaft according to claim 1, characterized in that: The anti-deflection assembly includes a bearing and a snap-fit ​​component; the fixing seat is fixedly mounted on the shaft mounting component, and the mounting hole of the fixing seat and the outer ring of the bearing are installed in an interference fit; The end of the shaft is narrowed to form an axial step, the end of the shaft passes through the inner ring of the bearing, the axial step abuts against the bottom surface of the bearing, the clip is snap-connected to the top surface of the bearing and the end of the shaft, and the clip abuts against the top surface of the bearing.

3. The anti-deflection structure of a shaft according to claim 2, characterized in that: An axial clamping interface is formed at the end of the shaft corresponding to the clamping piece; the clamping piece is clamped in the axial clamping interface.

4. The anti-deflection structure of a shaft according to claim 2, characterized in that: The end of the shaft and the inner ring of the bearing are installed with interference fit.

5. The anti-deflection structure of a shaft according to claim 2, characterized in that: The fastener is a clip spring.

6. The anti-deflection structure of a shaft according to claim 2, characterized in that: The buckle is made of spring steel.

7. The anti-deflection structure of a shaft according to claim 1, characterized in that: A fixing hole is opened on the peripheral side or corner of the fixing seat, and a fastening screw is passed through the fixing hole to fix the fixing seat to the shaft mounting component, and the bottom surface of the fixing seat is in contact with the shaft mounting component.

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