Ceramic roller
By setting through holes and limit key structures on the shaft head of the ceramic roller, the problem of failure of the spring structure at high temperature is solved, and a stable positioning and easy-to-install ceramic roller design is achieved, reducing costs and improving the interchangeability of parts.
Patent Information
- Application Number
- CN202422348263.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When existing ceramic rollers are used in high temperature and high pressure environments, the spring or reed structure is prone to annealing and lose its pre-tightening effect, resulting in complex installation, high cost, difficult to disassemble, and poor interchangeability of parts.
The through-hole form of the fastener through the shaft head is used to clamp the shaft body through the radial deformation of the shaft head, and combine the limit key and stress relief groove to achieve stable positioning and easy installation of the shaft body.
Improves the stability and installation efficiency of ceramic rollers in high temperature environments, reduces maintenance costs, and is easy to replace parts.
Smart Images
Figure CN223175025U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a conveying device, in particular to a ceramic roller. Background Art
[0002] The description of this part only provides background information related to the disclosure of the utility model, and does not constitute the prior art.
[0003] As a conveying tool, a ceramic roller is usually used to transport the material to be processed in a high-temperature environment. The general structure of a ceramic roller needs to be composed of a shaft body as the main body in contact with the material to be processed, and shaft heads at both ends of the shaft body for clamping and rotating the shaft body under the drive of an external force. In order to maintain the concentricity of the shaft body and the shaft heads, generally, a shaft body needs to be positioned by a circlip or a reed structure between the shaft body and the shaft heads. However, in a high-temperature and high-pressure environment, the circlip or the reed is prone to annealing during use, losing its pre-tightening effect, and the assembly process of the circlip or the reed is more complicated, and the ceramic body is prone to breakage during the installation process, resulting in an increase in cost. At the same time, the combination method of the shaft body and the shaft heads with the circlip or the reed structure is not easy to disassemble after installation, and the interchangeability of parts is also poor.
[0004] At present, there is no ceramic roller that can solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a ceramic roller, which can clamp and position the shaft body by the shaft head in the form of a fastener passing through the through-hole of the shaft head, is easier to install and has a low maintenance cost.
[0006] In order to achieve the above purpose, the utility model discloses a ceramic roller as follows; the ceramic roller includes:
[0007] A shaft body, the shaft body extends axially, the shaft body has opposite first and second ends, the shaft body has a first card slot extending radially at the first end, and the shaft body has a second card slot extending radially at the second end;
[0008] A first shaft head, the first shaft head is arranged at the first end of the shaft body, the first shaft head has two first through-holes arranged opposite to each other in the radial direction, a first fastener passes through the two first through-holes, so that the first shaft head deforms in the radial direction and clamps the first end of the shaft body; the first shaft head has a first limit key installation groove matching the position of the first card slot, a first limit key passes through the first limit key installation groove and is inserted into the first card slot, so that the rotation of the first end of the shaft body around the axial direction is limited;
[0009] The second shaft head is provided at the second end of the shaft body. The second shaft head has two second through holes arranged oppositely along the radial direction. A second fastener passes through the two second through holes, causing the second shaft head to deform along the radial direction and clamping the second end of the shaft body. The second shaft head has a second limit key mounting groove that matches the position of the second card slot. A second limit key passes through the second limit key mounting groove and is inserted into the second card slot, limiting the rotation of the second end of the shaft body around the axial direction.
[0010] Further, both the first fastener and the second fastener are set as bolt structures with a nut at one end and a threaded rod at the other end. Among them, the sizes of the first through hole and the second through hole are both smaller than the nuts of the first fastener and the second fastener respectively.
[0011] Further, the first shaft head has a first stress relief groove extending axially and shaped like a slit. When the first shaft head deforms under the traction of the first fastener, the width of the slit of the first stress relief groove decreases. The second shaft head has a second stress relief groove extending axially and shaped like a slit. When the second shaft head deforms under the traction of the second fastener, the width of the slit of the second stress relief groove decreases.
[0012] Further, the first stress relief groove has an opening at one end along the axial direction facing the second shaft head, and the second stress relief groove has an opening at one end along the axial direction facing the first shaft head.
[0013] Further, the inner diameters of the first shaft head and the second shaft head match the outer diameter of the shaft body.
[0014] Further, the first limit key mounting groove and the second limit key mounting groove are set as waist-shaped holes extending axially.
[0015] Further, the first card slot and the first limit key are fixed by spot welding, and the second card slot and the second limit key are fixed by spot welding.
[0016] By means of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0017] For the ceramic roller of the present utility model, the first through hole provided on the first shaft head for passing and fixing the first fastener and the second through hole provided on the second shaft head for passing and fixing the second fastener can be used to enable the first fastener to control the first shaft head to clamp the first end of the shaft body, and the second fastener to control the second shaft head to clamp the second end of the shaft body, replacing the pre-positioning of the existing circlip and reed structures for the shaft body. It not only has a lower cost, is more stable under high-temperature use, but also is easy to maintain and replace.
[0018] To enable a further understanding of the features and technical content of the present utility model, please refer to the following detailed description and drawings related to the present utility model. However, the provided drawings are only for reference and illustration, and are not intended to limit the present utility model. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 is a schematic cross-sectional view of a ceramic roller provided by an embodiment of this specification;
[0021] Figure 2 is a schematic three-dimensional view of a ceramic roller provided by an embodiment of this specification;
[0022] In the figure: 1, shaft body; 2, first shaft head; 21, first through hole; 22, first limit key installation groove; 23, first limit key; 24, first stress relief groove; 3, second shaft head; 31, second through hole; 32, second limit key installation groove; 33, second limit key; 34, second stress relief groove; 4, first fastener; 5, second fastener. Detailed Embodiments
[0023] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only some embodiments of this specification, rather than all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.
[0024] The following are specific embodiments to illustrate the implementation manners of the present utility model. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. Additionally, the drawings of the present utility model are only for simple schematic illustration and are not drawn according to actual dimensions, hereby stating in advance. The following embodiments will further detail the related technical content of the present utility model, but the disclosed content is not intended to limit the protection scope of the present utility model.
[0025] It should be understood that although terms such as "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another, or one signal from another. In addition, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of more of the associated listed items.
[0026] Please refer to Figure 1-2 , which is a ceramic roller of this embodiment; wherein the ceramic roller includes:
[0027] A shaft body 1, the shaft body 1 extends axially, the shaft body 1 has opposite first and second ends, the shaft body 1 has a first card slot extending radially at the first end, and the shaft body 1 has a second card slot extending radially at the second end;
[0028] A first shaft head 2, the first shaft head 2 is provided at the first end of the shaft body 1, the first shaft head 2 has two first through holes 21 arranged opposite to each other in the radial direction, a first fastener 4 passes through the two first through holes 21, so that the first shaft head 2 undergoes a radial deformation and clamps the first end of the shaft body ;the first shaft head 2 has a first limit key mounting groove 22 that matches the position of the first card slot, and a first limit key 23 passes through the first limit key mounting groove 22 and is inserted into the first card slot, so that the rotation of the first end of the shaft body 1 around the axis is limited;
[0029] A second shaft head 3, the second shaft head 3 is provided at the second end of the shaft body 1, the second shaft head 3 has two second through holes 31 arranged opposite to each other in the radial direction, a second fastener 5 passes through the two second through holes 31, so that the second shaft head 3 undergoes a radial deformation and clamps the second end of the shaft body 1; the second shaft head 3 has a second limit key mounting groove 32 that matches the position of the second card slot, and a second limit key 33 passes through the second limit key mounting groove 32 and is inserted into the second card slot, so that the rotation of the second end of the shaft body 1 around the axis is limited.
[0030] With the above structure, during use, the operator only needs to sleeved the first shaft head 2 onto the first end of the shaft body 1. It should be noted that the position of the shaft body 1 with the first card slot needs to be rotated to match the angle of the first limit key installation groove 22 of the first shaft head 2. Then, the first limit key 23 is inserted through the first limit key installation groove 22 and into the first card slot. At the same time, the first fastener 4 passes through the first through hole 21 and by tightening the first fastener 4, both sides of the first shaft head 2 in the radial direction are pulled by the first fastener 4 in the axial direction, causing a slight deformation of the first shaft head 2 in the radial direction, so that the first shaft head 2 clamps the first end of the shaft body 1 until it is completely fixed. Similarly, when positioning the second end of the shaft body 1, the second shaft head 3 is sleeved onto the second end of the shaft body 1. It should be noted that the position of the shaft body 1 with the second card slot needs to be rotated to match the angle of the second limit key installation groove 32 of the second shaft head 3. Then, the second limit key 33 is inserted through the second limit key installation groove 32 and into the second card slot. At the same time, the second fastener 5 passes through the second through hole 31 and by tightening the second fastener 5, both sides of the second shaft head 3 in the radial direction are pulled by the second fastener 5 in the axial direction, causing a slight deformation of the second shaft head 3 in the radial direction, so that the second shaft head 3 clamps the second end of the shaft body 1 until it is completely fixed. The first end and the second end of the shaft body 1 can be fixed synchronously and fine-tuned synchronously, which helps to maintain the concentricity of the shaft body 1 with the first shaft head 2 and the second shaft head 3.
[0031] During the above use process, the first fastener 4 can be effectively used to clamp the first end of the shaft body 1 in the radial direction. Also, by inserting the first limit key 23 into the first card slot, the first end of the shaft body 1 can be fixed around the axial angle. Of course, the second fastener 5 and the second limit key 33 also have the same effect on the second end of the shaft body 1. Especially compared with the existing structures such as snap rings and spring sheets for fixing between the shaft body 1 and the shaft head, in this embodiment, only by adjusting the tightening degree of the first fastener 4 and the second fastener 5, the convenient adjustment of the clamping degree of both ends of the shaft body 1 can be achieved, significantly improving the installation efficiency of the shaft body 1. At the same time, it also avoids the problems of high cost of structures such as snap rings and spring sheets and poor stability when used at high temperatures.
[0032] Furthermore, both the first fastener 4 and the second fastener 5 are set as bolt structures with a nut at one end and a threaded rod at the other end. Among them, the sizes of the first through-hole 21 and the second through-hole 31 are both smaller than the nuts of the first fastener 4 and the second fastener 5 respectively. That is to say, taking the first end of the shaft body 1 as an example, through the rotation of the first fastener 4, the nut of the first fastener 4 is limited by the edge of the first through-hole 21 of one of the first shaft heads 2. When the first fastener 4 is continuously rotated and screwed in, the two first through-holes 21 are pulled closer to each other under force, resulting in a slight deformation at the first shaft head 2, so that the first end of the shaft body 1 is clamped by the slightly deformed first shaft head 2.
[0033] Furthermore, the first shaft head 2 has a first stress relief groove 24 extending axially and arranged in a slit shape. When the first shaft head 2 deforms under the traction of the first fastener 4, the slit width of the first stress relief groove 24 decreases; the second shaft head 3 has a second stress relief groove 34 extending axially and arranged in a slit shape. When the second shaft head 3 deforms under the traction of the second fastener 5, the slit width of the second stress relief groove 34 decreases. Still taking the first end of the shaft body 1 as an example, through the setting of the first stress relief groove 24, during the process of the first shaft head 2 being pulled and deformed by the first fastener 4, a certain stress relief space can be given to the structure of the first shaft head 2, so that the first shaft head 2 has a certain elasticity, and the metal volume at the deformed first shaft head 2 is smaller, which helps to reduce the adjustment difficulty of the first fastener 4 and improve the adjustment accuracy. It should be noted that the first stress relief groove 22 has an opening at one end axially facing the second shaft head 2. Through the setting of the opening, the deformation of the first shaft head 2 can be presented as a scissor-like change. During the deformation of the first shaft head 2, the outermost end of the opening finally closes, further reducing the resistance to the deformation of the first shaft head 2.
[0034] Furthermore, the inner diameters of the first shaft head 2 and the second shaft head 3 match the outer diameter of the shaft body 1. Specifically, in this embodiment, the inner diameters of the first shaft head 2 and the second shaft head 3 are slightly larger than or almost equal to the outer diameter of the shaft body 1, so as to reduce the deformation amounts of the first shaft head 2 and the second shaft head 3 and improve the fixing accuracy and concentricity.
[0035] Furthermore, the first limit key installation grooves 22 and 23 are set as waist-shaped holes extending axially. When the operator installs, by judging the waist-shaped holes, the axial distance of the shaft body 1 is more intuitively visible and the accuracy is easier to control.
[0036] Further, the first card slot is fixed to the first limiting key 23 by spot welding, and the second card slot is fixed to the second limiting key 33 by spot welding. Spot welding has a high physical structure strength and high precision. Of course, in another embodiment, the first card slot and the first limiting key 23, and the second card slot and the second limiting key 33 can also be connected by interference fit, gluing or other methods, which can be selected according to cost control and actual needs.
[0037] The content disclosed above is only the preferred and feasible embodiment of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present invention are included in the scope of the patent application of the present invention.
[0038] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized.
[0039] Although the present application is depicted by way of examples, those of ordinary skill in the art know that the present application has many variations and changes without departing from the spirit of the present application. It is hoped that the appended embodiments include these variations and changes without departing from the present application.
Claims
1. A ceramic roller; characterized in that, The ceramic roller includes: A shaft body, which extends axially. The shaft body has opposite first and second ends. The shaft body has a first clamping groove extending radially at the first end, and the shaft body has a second clamping groove extending radially at the second end; A first shaft head, which is provided at the first end of the shaft body. The first shaft head has two first through holes arranged oppositely along the radial direction. A first fastener passes through the two first through holes, causing the first shaft head to deform along the radial direction and clamp the first end of the shaft body. The first shaft head has a first limiting key mounting groove that matches the position of the first clamping groove. A first limiting key passes through the first limiting key mounting groove and is inserted into the first clamping groove, so that the rotation of the first end of the shaft body around the axial direction is limited; A second shaft head, which is provided at the second end of the shaft body. The second shaft head has two second through holes arranged oppositely along the radial direction. A second fastener passes through the two second through holes, causing the second shaft head to deform along the radial direction and clamp the second end of the shaft body. The second shaft head has a second limiting key mounting groove that matches the position of the second clamping groove. A second limiting key passes through the second limiting key mounting groove and is inserted into the second clamping groove, so that the rotation of the second end of the shaft body around the axial direction is limited.
2. The ceramic roller according to claim 1, wherein: Both the first fastener and the second fastener are set as bolt structures with a nut at one end and a threaded rod at the other end. Among them, the sizes of the first through hole and the second through hole are both smaller than the nuts of the first fastener and the second fastener respectively.
3. The ceramic roller according to claim 1, wherein: The first shaft head has a first stress relief groove extending axially and shaped like a slit. The width of the slit of the first stress relief groove decreases when the first shaft head deforms under the traction of the first fastener; The second shaft head has a second stress relief groove extending axially and shaped like a slit. The width of the slit of the second stress relief groove decreases when the second shaft head deforms under the traction of the second fastener.
4. The ceramic roller according to claim 3, characterized in that: The first stress relief groove has an opening at one end along the axial direction facing the second shaft head, and the second stress relief groove has an opening at one end along the axial direction facing the first shaft head.
5. The ceramic roller according to claim 1, wherein: The inner diameters of the first shaft head and the second shaft head match the outer diameter of the shaft body.
6. The ceramic roller according to claim 1, characterized in that: The first limiting key mounting groove and the second limiting key mounting groove are set as waist-shaped holes extending axially.
7. The ceramic roller according to claim 1, characterized in that: The first clamping groove and the first limiting key are fixed by spot welding, and the second clamping groove and the second limiting key are fixed by spot welding.