Impeller spinning fastening structure
By setting an external thread on the rotating shaft to rotate in the opposite direction to the impeller body, the problem of impeller loosening is solved, the impeller is stably locked, and equipment failures are reduced.
Patent Information
- Application Number
- CN202520448464.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Impeller detachment in rotating mechanisms is a common and serious mechanical accident. Improving the probability of the impeller locking securely and preventing detachment is a key design consideration.
A self-rotating fastening structure for an impeller is designed. By setting an external thread at the end of the rotating shaft body and making the external thread rotate in the opposite direction to the rotation of the impeller body, the external thread rotates in the opposite direction during rotation to gradually tighten the fit, and provides a locking force for fastening when rotation stops.
This effectively reduces the problem of impeller loosening during rotation and shutdown, and lowers the probability of equipment failure.
Smart Images
Figure CN223881415U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses a fastening structure belongs to impeller technical field, concretely relates to an impeller self-rotating fastening structure. BACKGROUND
[0002] The function of the impeller in the rotating mechanism mainly reflects two aspects of energy conversion and fluid delivery. The impeller generates centrifugal force through rotation, converts the mechanical energy of the prime mover into static pressure energy and kinetic energy of the fluid, thereby realizing energy conversion and fluid delivery. Impeller loosening is a common and serious mechanical accident in rotating machinery, and how to improve the probability of impeller locking and not loosening is a necessary design requirement. UTILITY MODEL CONTENTS
[0003] The utility model provides a kind of impeller self-rotating fastening structure, solve the problem mentioned above.
[0004] Technical scheme: a kind of impeller self-rotating fastening structure, comprising: impeller body, shaft body and fixed nut;
[0005] The impeller body is sleeved on one end of the shaft body, and the fixed nut is screwed on one end of the shaft body to fix the impeller body and the shaft body.
[0006] The outer side of the end of the shaft body is provided with external thread.
[0007] In further embodiments, the external thread is opposite to the rotation direction of the impeller body, and the external thread is the same as the rotation direction of the shaft body.
[0008] In further embodiments, when the impeller body and the shaft body rotate, the external thread rotates reversely with the impeller body to make the fit gradually tight.
[0009] In further embodiments, when the impeller body and the shaft body stop rotating, the impeller body provides locking force for fastening.
[0010] Beneficial effects: the utility model is provided with external thread on the outer side of the end of the shaft body, which can realize rotation and impeller loosening when parking by using thread structure, and reduce equipment failure. DRAWINGS
[0011] Figure 1 is the schematic diagram of the utility model.
[0012] Reference signs: impeller body 1, shaft body 2, fixed nut 3, external thread 4. DETAILED DESCRIPTION
[0013] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0014] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0015] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0016] A kind of impeller self-rotating fastening structure, comprising: impeller body 1, rotating shaft body 2, fixed nut 3, external thread 4.
[0017] In one embodiment, as shown in Figure 1 The impeller body 1 is sleeved on one end of the rotating shaft body 2, and the fixed nut 3 is screwed on one end of the rotating shaft body 2 to fix the impeller body 1 and the rotating shaft body 2.
[0018] The end of the rotating shaft body 2 is provided with external thread 4.
[0019] In one embodiment, as shown in Figure 1 The external thread 4 is opposite to the rotation direction of the impeller body 1, and the external thread 4 is the same as the rotation direction of the rotating shaft body 2.
[0020] In one embodiment, as shown in Figure 1As shown, when the impeller body 1 and the rotating shaft body 2 rotate, the external thread 4 rotates reversely with the impeller body 1 to make the cooperation gradually tight.
[0021] In one embodiment, as shown, Figure 1 As shown, when the impeller body 1 and the rotating shaft body 2 stop rotating, the impeller body 1 provides locking force for fastening.
[0022] Working principle: when the rotating shaft body 2 and the impeller body 1 rotate, because the external thread 4 rotates reversely with the impeller body 1, the cooperation will be more and more tight. When stopping rotating, the impeller body 1 will provide locking force for fastening. The utility model uses the thread structure to realize the problem of impeller loosening when rotating and stopping, and reduces the equipment failure.
[0023] Obviously, the above embodiments are only examples for clearly illustrating, and not limit the embodiments. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and also impossible to enumerate all the embodiments. The obvious changes or variations derived from this still fall within the protection scope of the utility model.
Claims
1. A self-rotating and fastening structure for an impeller, characterized in that, Comprise: A impeller body, a rotating shaft body and a fixed nut; The impeller body is sleeved on one end of the rotating shaft body, and the fixed nut is screwed on one end of the rotating shaft body to fix the impeller body and the rotating shaft body. The end of the rotating shaft body is provided with an external thread.
2. The impeller spin-fastening structure according to claim 1, wherein The external thread is opposite to the rotating direction of the impeller body, and the external thread is the same as the rotating direction of the rotating shaft body.
3. The impeller spin-fastening structure according to claim 2, wherein When the impeller body and the rotating shaft body rotate, the external thread rotates reversely with the impeller body to make the fit gradually tight.
4. The impeller spin-fastening structure according to claim 2, wherein When the impeller body and the rotating shaft body stop rotating, the impeller body provides locking force for fastening.