Packing auger floating shaft head connecting structure
By introducing a floating steel ball and disc spring assembly auger floating shaft head connection structure into the shaftless auger conveyor, the problem of uneven radial force caused by welding hot working and temperature deformation is solved, thus protecting the auger shaft and power shaft, avoiding shaft breakage, and improving the stability and safety of the equipment.
Patent Information
- Application Number
- CN202423228997.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In hot environments, the deformation and temperature effects caused by welding heat treatment in shaftless auger conveyors can lead to uneven radial stress on the auger blades and drive shaft, making them prone to shaft breakage, especially in hot environments where the failure frequency is high.
The auger adopts a floating shaft head connection structure. Through the combination of floating steel balls and disc springs between the power flange and the shaft head flange, the shaftless auger and the power shaft can be elastically floated and adjusted, absorbing radial impact and bending torque, and protecting the safety of the auger and the power shaft.
It effectively absorbs radial impact and bending torque from the winch and power shaft, avoiding shaft breakage due to rigid stress and improving the operational stability and safety of the equipment.
Smart Images
Figure CN223779218U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical equipment manufacturing technology, specifically relating to a auger floating shaft head connection structure. Background Technology
[0002] As a new type of conveying equipment, shaftless auger conveyors have advantages such as simple structure, stable operation, high conveying efficiency, and convenient maintenance. They have been widely used in industries such as coal, mining, chemical, and building materials.
[0003] During the manufacturing process of shaftless augers, the casing or auger blades may be deformed due to the effects of welding heat treatment. When used in a cold conveying environment, slight shell abrasion may occur, causing uneven radial force on the auger blades and power shaft during operation. Long-term use may lead to shaft breakage. This situation is especially true when used in a hot environment, where the temperature affects the components, causing deformation errors to increase and shaft breakage to occur more frequently. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a auger floating shaft head connection structure that addresses the shortcomings of the prior art. This auger floating shaft head connection structure is simple in structure, easy to use, and has good performance, and can be widely applied.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a auger floating shaft head connection structure, characterized in that it includes a power flange, the power flange is disposed on a power shaft, the power flange is fixedly connected to a shaft head flange by a stepped fixing pin, the power flange is fixedly connected to the stepped fixing pin, the shaft head flange is movably connected to the stepped fixing pin, and the shaft head flange is fixedly connected to an auger blade.
[0006] A tapered hole is provided at the center of the power flange, and a floating steel ball is provided inside the tapered hole. A spring hole is provided at the center of the shaft head flange, and a disc spring assembly is provided inside the spring hole. The floating steel ball abuts against the disc spring assembly.
[0007] Preferably, the cone angle of the conical hole is 90°, the angle between the conical surface of the conical hole and the center line is 45°, the angle between the conical surface of the conical hole and the end face of the power flange is 45°, and the center of the floating steel ball is located outside the conical hole.
[0008] This utility model has the following advantages compared with the prior art:
[0009] This invention connects the power flange and the shaft head flange using a stepped fixing pin. A floating steel ball is installed inside the power flange, and a disc spring assembly is installed inside the shaft head flange. The floating steel ball abuts against the disc spring assembly, thus overcoming the shortcomings of the rigid connection in traditional spiral auger conveyors. This invention enables the shaftless auger to be connected to the power shaft with elastic floating adjustment, which has the advantages of absorbing radial impact shear force and axial bending torque of the auger. It can protect the safety of the auger and the power shaft to the greatest extent and avoid shaft breakage caused by rigid stress.
[0010] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Explanation of reference numerals in the attached figures:
[0013] 1—Auger blade; 2—Spring hole; 3—Shaft head flange;
[0014] 4—Disc spring assembly; 5—Step fixing pin; 6—Floating steel ball;
[0015] 7—tapered bore; 8—power flange. Detailed Implementation
[0016] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0018] like Figure 1As shown, this utility model provides a auger floating shaft head connection structure, including a power flange 8, which is disposed on a power shaft. The power flange 8 is fixedly connected to a shaft head flange 3 by a stepped fixing pin 5. The power flange 8 is fixedly connected to the stepped fixing pin 5, and the shaft head flange 3 is movably connected to the stepped fixing pin 5. The shaft head flange 3 is fixedly connected to an auger blade 1.
[0019] A tapered hole 7 is provided at the center of the power flange 8, and a floating steel ball 6 is provided in the tapered hole 7. A spring hole 2 is provided at the center of the shaft head flange 3, and a disc spring assembly 4 is provided in the spring hole 2. The floating steel ball 6 abuts against the disc spring assembly 4.
[0020] In this embodiment, the cone angle of the conical hole 7 is 90°, the angle between the conical surface of the conical hole 7 and the center line is 45°, the angle between the conical surface of the conical hole 7 and the end face of the power flange 8 is 45°, and the center of the floating steel ball 6 is located outside the conical hole 7.
[0021] When in use, the power shaft rotates, and the step fixing pin 5 set on the power flange 8 moves the shaft head flange 3 to drive the synchronous rotation of the auger blade 1, transmitting rotational torque to the auger blade 1 to convey materials.
[0022] When the conveying auger is subjected to material impact or thermal deformation bending torque, causing an increase in axial bending torque and radial shear force on the auger blades 1 and the drive shaft, endangering the strength and safety of the auger blades 1 and the drive shaft, the floating steel ball 6 overcomes the pressure of the disc spring assembly 4 and jumps radially within the conical hole 7, adjusting the radial offset of the auger blade 1 axis and reducing the rigid radial shear force on the auger blades 1 and the drive shaft. After the bending torque and radial shear force disappear, the floating steel ball 6 returns to its original position along the 45° inner conical surface of the conical hole 7 under the pre-tightening pressure of the disc spring assembly 4, protecting the safety of the auger blades 1 and the drive shaft.
[0023] When the auger blade 1 is permanently bent and deformed due to material impact or heat, increasing the axial bending torque and radial shear force of the power shaft, the floating steel ball 6 overcomes the pressure of the disc spring assembly 4 and jumps radially within the tapered hole 7, which can also reduce the rigid radial shear force on the auger blade 1 and the power shaft.
[0024] Meanwhile, the step fixing pin 5 is movably connected to the shaft flange 3 of the auger blade 1, which can accept an axial offset angle of 2-3 degrees caused by the bending of the auger blade 1. After the bending torque and radial shear force disappear, the floating steel ball 6 returns to its original position along the 45° inner conical surface of the conical hole 7 under the pre-tightening pressure of the disc spring group 4, protecting the auger blade 1 and the power shaft.
[0025] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A auger floating shaft head connection structure, characterized in that, Includes a power flange (8), which is mounted on a power shaft. The power flange (8) is fixedly connected to a shaft head flange (3) via a step fixing pin (5). The power flange (8) is fixedly connected to the step fixing pin (5), and the shaft head flange (3) is movably connected to the step fixing pin (5). The shaft head flange (3) is fixedly connected to an auger blade (1). A tapered hole (7) is provided at the center of the power flange (8), and a floating steel ball (6) is provided in the tapered hole (7). A spring hole (2) is provided at the center of the shaft head flange (3), and a disc spring assembly (4) is provided in the spring hole (2). The floating steel ball (6) abuts against the disc spring assembly (4).
2. The auger floating shaft head connection structure according to claim 1, characterized in that, The cone angle of the conical hole (7) is 90°, and the center of the floating steel ball (6) is located outside the conical hole (7).