Ceramic cylinder cover fastening device

Abstract

The utility model relates to the technical field of ceramic cylinder cover installation, in particular to a ceramic cylinder cover fastening device which is characterized in that an embedding groove is formed in the outer wall of a cylinder opening area of a ceramic cylinder body, a taper sleeve formed by splicing two semicircular taper sleeve petals is embedded in the embedding groove, and a lantern ring is sleeved outside the taper sleeve. And then the ceramic cover and the lantern ring are fastened together through a bolt and a nut matched with the bolt, so that the ceramic cylinder cover can be mounted and fastened. The operation is simple, and the ceramic cylinder and the ceramic cover cannot be damaged.

Description

Technical Field

[0001] This utility model relates to the field of ceramic cylinder cover installation technology, specifically to a ceramic cylinder cover fastening device. Background Technology

[0002] Ceramics are widely used in sintering kilns due to their excellent high-temperature stability and lack of impurity precipitation. In some types of sintering kilns, ceramic cylinder covers need to be installed at both ends of the ceramic cylinder. However, current methods of connecting the ceramic cylinder to the cover have some problems. Traditional connection methods, such as threaded connections, are prone to cracking during tightening due to the brittleness of the ceramic material, thus affecting product quality and service life. While adhesive connections are relatively simple to operate, the performance of the adhesive is easily degraded in harsh environments such as high temperature and high humidity, leading to loose connections and poor sealing. Welding connections are almost unsuitable for ceramic liners because the high melting point of ceramics and the thermal stress during welding can easily cause cracks. In addition, some existing mechanical connection methods, such as snap-fit ​​connections, often suffer from unstable connections and are prone to detachment, making it difficult to meet the product's usage requirements under different operating conditions. Utility Model Content

[0003] Therefore, this utility model provides a ceramic cylinder cap fastening device to solve the technical problem that the ceramic cylinder and ceramic cap cannot be well fastened together in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A ceramic cylinder cap fastening device includes a ceramic cylinder body and a ceramic cap; it also includes a collar; a coaxial annular embedding groove is formed on the outer wall of the opening region of the ceramic cylinder body; a conical sleeve is embedded in the embedding groove; the conical sleeve is formed by splicing two semi-circular conical sleeve segments; the smaller diameter end of the conical sleeve is away from the opening of the ceramic cylinder body; a through conical hole is formed on the side of the collar, the smaller diameter side of which is away from the opening of the ceramic cylinder body; the larger diameter end of the conical sleeve has a diameter greater than the diameter of the ceramic cylinder body; the smaller diameter end of the conical hole of the collar has a larger diameter than the opening of the ceramic cylinder body. The diameter of the ceramic cylinder is smaller than the diameter of the large-diameter end of the conical sleeve; the diameter of the large-diameter end of the conical hole is larger than the diameter of the small-diameter end of the conical sleeve; the collar is fitted around the outer circumference of the conical sleeve; the inner wall of the collar fits against the outer wall of the conical sleeve; multiple through-holes are evenly distributed on the side wall of the collar; multiple through-holes that fit the collar mounting holes are evenly distributed on the outer circumference of the ceramic cover; bolts are inserted into the ceramic cover mounting holes and the collar mounting holes, and the ceramic cover and the collar are fastened together by nuts.

[0006] Preferably, the side wall of the embedding groove near the opening of the ceramic cylinder is radially parallel to the ceramic cylinder; the bottom wall of the embedding groove is axially parallel to the ceramic cylinder.

[0007] Preferably, the angle α between the sidewall of the conical sleeve and its axial direction is 15°.

[0008] Preferably, the bottom wall of the embedding groove on the side away from the opening of the ceramic cylinder is inclined toward the side wall of the ceramic cylinder to form a slope.

[0009] Preferably, a chamfered groove is formed on the bottom wall of the embedding groove near the right sidewall of the embedding groove.

[0010] Preferably, a gasket is provided between the head of the bolt and the ceramic cap, and between the nut and the collar; or a gasket is provided between the head of the bolt and the collar, and between the nut and the ceramic cap.

[0011] Preferably, the bolt, the nut, and the washer are all made of ceramic material.

[0012] Preferably, the ceramic cover is covered with a metal protective plate on the side away from the ceramic cylinder.

[0013] Preferably, the nut is tightened in the opposite direction to the rotation direction of the ceramic cylinder.

[0014] This utility model has at least the following beneficial effects:

[0015] The ceramic cap is installed and secured by creating an embedding groove on the outer wall of the ceramic cylinder's opening area, embedding a conical sleeve (composed of two semi-circular conical segments) into the groove, and then placing a collar around the conical sleeve. Finally, bolts and matching nuts are used to fasten the ceramic cap to the collar, thus achieving the secure installation of the ceramic cylinder cap. The operation is simple and will not damage the ceramic cylinder or cap.

[0016] Therefore, the ceramic cylinder cap fastening device of this utility model has the advantages of simple operation and no damage to the ceramic cylinder or ceramic cap. Attached Figure Description

[0017] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 This is a front sectional view of a ceramic cylinder cap fastening device according to the present invention;

[0020] Figure 2 This utility model provides a ceramic cylinder cap fastening device. Figure 1 A magnified view of part A;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Ceramic cylinder; 101. Embedded groove; 1011. Sloping surface; 1012. Chamfered groove; 2. Ceramic cover; 201. Ceramic cover mounting hole; 3. Metal protective plate; 4. Collar; 401. Collar mounting hole; 5. Bolt; 6. Nut; 7. Washer; 8. Tapered sleeve. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0025] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to facilitate intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationships in the actual product. Changes in these relative positional relationships, without departing from the technical concept disclosed in this application, should also be considered within the scope of this application.

[0026] This utility model provides a ceramic cylinder cap fastening device, such as... Figure 1 , Figure 2As shown, the assembly includes a ceramic cylinder 1, a ceramic cap 2, a conical sleeve 8, and a collar 4. A coaxial annular insertion groove 101 is formed on the outer wall of the opening region of the ceramic cylinder 1. The conical sleeve 8 is composed of two semi-circular conical sleeve segments joined together, and is embedded within the insertion groove 101. The smaller diameter end of the conical sleeve 8 is away from the opening of the ceramic cylinder 1. A through conical hole is formed on the side of the collar 4, with the smaller diameter side away from the opening of the ceramic cylinder 1. To facilitate installation, the larger diameter end of the conical sleeve 8 is larger than the diameter of the ceramic cylinder 1; the smaller diameter end of the conical hole in the collar 4 is larger than the diameter of the ceramic cylinder 1 but smaller than the larger diameter end of the conical sleeve 8; the larger diameter end of the conical hole is larger than the smaller diameter end of the conical sleeve 8. In this way, the collar 4 can be fitted onto the outer circumference of the conical sleeve 8, with the inner wall of the collar 4 fitting snugly against the outer wall of the conical sleeve 8. The collar 4 has multiple through-holes 401 evenly distributed on its side wall; the ceramic cover 2 has multiple through-holes 201 evenly distributed on its outer circumference that are adapted to the collar mounting holes 401. Bolts 5 are inserted into the ceramic cover mounting holes 201 and the collar mounting holes 401, and the ceramic cover 2 and the collar 4 are fastened together by nuts 6.

[0027] Preferably, in order to protect the embedding groove 101 from damage when it is squeezed by the conical sleeve 8, the side wall of the embedding groove 101 near the opening of the ceramic cylinder 1 is radially parallel to the ceramic cylinder 1; the bottom wall of the embedding groove 101 is axially parallel to the ceramic cylinder 1.

[0028] Preferably, when tightening the nut 6, the collar 4 is pushed to move and press against the tapered sleeve 8, and the angle α between the side wall of the tapered sleeve 8 and its axial direction is 15°.

[0029] Preferably, in order to protect the side wall of the embedding groove 101 from impact damage, and also to utilize the processing of the embedding groove 101, the bottom wall of the embedding groove 101 on the side away from the opening of the ceramic cylinder 1 is inclined towards the side wall of the ceramic cylinder 1 to form a slope 1011.

[0030] Preferably, in order to prevent thermal stress from causing cracks in the ceramic cylinder 1, a chamfered groove 1012 is provided on the bottom wall of the embedding groove 101 near the right side wall of the embedding groove 101. Specifically, the bottom wall of the chamfered groove 1012 is inclined towards the axis of the ceramic cylinder 1 on the side away from the opening of the ceramic cylinder 1, and the other side is an arc-shaped surface.

[0031] Preferably, to prevent the nut 6 from loosening, when the bolt 5 is inserted from right to left, a washer 7 is provided between the head of the bolt 5 and the ceramic cap 2 and between the nut 6 and the collar 4; or when the bolt 5 is inserted from left to right, a washer 7 is provided between the head of the bolt 5 and the collar 4 and between the nut 6 and the ceramic cap 2.

[0032] Preferably, to avoid damage or loosening caused by inconsistent thermal expansion and contraction due to the different materials of the ceramic cylinder 1 and the bolts 5, nuts 6, and washers 7 during the heating process, the bolts 5, nuts 6, and washers 7 are all made of ceramic material.

[0033] Preferably, to protect the ceramic cover 2, a metal protective plate 3 is covered on the side of the ceramic cover 2 away from the ceramic cylinder 1, and the metal protective plate 3 is preferably made of stainless steel.

[0034] Preferably, when the device of this application is used in a rotary kiln, the tightening direction of the nut 6 is opposite to the rotation direction of the ceramic cylinder 1. In this way, the nut 6 will be tightened more tightly under the action of inertial force during the rotation of the ceramic cylinder 1.

[0035] In use: Place the two conical sleeves into the embedded grooves; then put the collar on the conical sleeves; next, place the ceramic cap on the opening of the ceramic cylinder and adjust its direction so that the mounting hole of the ceramic cap and the mounting hole of the collar are aligned; finally, insert the bolts and tighten the nuts to complete the installation and fastening of the ceramic cap.

[0036] The present application has been described in a relatively specific and detailed manner above through general descriptions and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the protection scope of the claims of the present application.

Claims

1. A ceramic cylinder cap fastening device, comprising a ceramic cylinder (1) and a ceramic cap (2), characterized in that, It also includes a collar (4); a coaxial annular embedding groove (101) is provided on the outer wall of the opening area of ​​the ceramic cylinder (1); a conical sleeve (8) is embedded in the embedding groove (101); the conical sleeve (8) is composed of two semi-circular conical sleeve segments; the small diameter end of the conical sleeve (8) is far away from the opening of the ceramic cylinder (1); a through conical hole is provided on the side of the collar (4), with the smaller diameter side of the hole being far away from the opening of the ceramic cylinder (1); the large diameter end of the conical sleeve (8) has a diameter greater than the diameter of the ceramic cylinder (1); the small diameter end of the conical hole of the collar (4) has a diameter greater than the diameter of the ceramic cylinder (1) and smaller than the large diameter end of the conical sleeve (8). The diameter of the conical hole is larger than the diameter of the conical sleeve (8). The collar (4) is fitted around the outer circumference of the conical sleeve (8). The inner wall of the collar (4) fits against the outer wall of the conical sleeve (8). The side wall of the collar (4) is evenly distributed with multiple through collar mounting holes (401). The outer circumference of the ceramic cover (2) is evenly distributed with multiple through ceramic cover mounting holes (201) that are adapted to the collar mounting holes (401). Bolts (5) are inserted into the ceramic cover mounting holes (201) and the collar mounting holes (401), and the ceramic cover (2) and the collar (4) are fastened together by nuts (6).

2. The ceramic cylinder cap fastening device according to claim 1, characterized in that, The side wall of the embedding groove (101) near the opening of the ceramic cylinder (1) is radially parallel to the ceramic cylinder (1); the bottom wall of the embedding groove (101) is axially parallel to the ceramic cylinder (1).

3. The ceramic cylinder cap fastening device according to claim 2, characterized in that, The angle α between the sidewall of the tapered sleeve (8) and its axial direction is 15°.

4. A ceramic cylinder cap fastening device according to claim 2, characterized in that, The bottom wall of the embedded groove (101) on the side away from the opening of the ceramic cylinder (1) is inclined toward the side wall of the ceramic cylinder (1) to form a slope (1011).

5. A ceramic cylinder cap fastening device according to claim 2, characterized in that, A chamfered groove (1012) is provided on the bottom wall of the embedding groove (101) near the right side wall of the embedding groove (101).

6. A ceramic cylinder cap fastening device according to claim 1, characterized in that, A washer (7) is provided between the head of the bolt (5) and the ceramic cap (2) and between the nut (6) and the collar (4); or a washer (7) is provided between the head of the bolt (5) and the collar (4) and between the nut (6) and the ceramic cap (2).

7. A ceramic cylinder cap fastening device according to claim 6, characterized in that, The bolt (5), the nut (6), and the washer (7) are all made of ceramic material.

8. A ceramic cylinder cap fastening device according to claim 1, characterized in that, The ceramic cover (2) is covered with a metal protective plate (3) on the side away from the ceramic cylinder (1).

9. A ceramic cylinder cap fastening device according to claim 1, characterized in that, The tightening direction of the nut (6) is opposite to the rotation direction of the ceramic cylinder (1).

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