A mounting structure of a disc nest grinding ceramic tooth plate

Abstract

The utility model discloses a kind of installation structures of dish nest grinding ceramic tooth plate, it is related to the technical field of crushing equipment, and it includes: outer cylinder, fixed ring, fixed assembly, multiple dovetail plate.The outer cylinder is cylindrical, and fixed recess is arranged around the inner wall of outer cylinder;Fixed ring is embedded in fixed recess, and notch is arranged on fixed ring;Fixed assembly is located in fixed recess, and fixed assembly is located in notch, and fixed assembly is used to support the both sides of fixed ring in notch, so that fixed ring keeps open state in fixed recess;Dovetail plate is connected with fixed ring, and multiple dovetail plates are spaced and arranged in parallel, and the extension direction of dovetail plate is parallel with the axial direction of outer cylinder, and dovetail plate is used to assist fixed ceramic tooth plate, and dovetail groove for dovetail plate embedding is arranged on ceramic tooth plate.The utility model can improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to an installation structure for a ceramic toothed plate of a disc mill. Background Technology

[0002] The grinding principle of a disc mill involves creating a high-speed flow field and impact zone within the grinding chamber using high-speed rotating discs and a vertically rotating central shaft. This achieves efficient material grinding. The high-speed rotating discs and grinding rings, through intense impact, shearing, and friction, effectively grind materials, making it particularly suitable for materials with high hardness. The ceramic toothed plates of a disc mill are typically glued to the cylinder using dovetail grooves. Workers must weld the dovetail plates piece by piece within the narrow cylinder. The cylinder diameter is usually small, making welding inconvenient, resulting in long working hours and low manufacturing efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an installation structure for a disc-shaped ceramic toothed plate, which can improve assembly efficiency.

[0004] An installation structure for a ceramic toothed plate according to a first aspect embodiment of the present invention includes: an outer cylinder, a fixing ring, a fixing component, and multiple dovetail plates. The outer cylinder is cylindrical, and a fixing groove is provided around its inner wall. The fixing ring is embedded in the fixing groove and has a notch. The fixing component is located within the fixing groove and the notch, supporting the fixing ring on both sides of the notch, keeping the fixing ring open within the fixing groove. Each dovetail plate is connected to the fixing ring, and the multiple dovetail plates are arranged parallel to each other at intervals. The extending direction of the dovetail plates is parallel to the axial direction of the outer cylinder. The dovetail plates assist in fixing the ceramic toothed plate, and dovetail grooves are provided on the ceramic toothed plate for the dovetail plates to be embedded in.

[0005] According to an embodiment of the present invention, the installation structure of a ceramic toothed plate for a disc-shaped grinding mill has at least the following advantages: After the dovetail plate and the fixing ring are pre-assembled, the entire assembly is placed into the outer cylinder. This pre-assembly allows for a more spacious environment, avoiding the need to install and position each dovetail plate individually within the narrow outer cylinder, effectively simplifying the installation process and improving assembly and manufacturing efficiency. By releasing the support of the fixing components, the fixing ring returns to its elastic contraction state, allowing the entire assembly of the fixing ring and dovetail plate to be removed from the outer cylinder. This facilitates convenient maintenance or replacement of components.

[0006] According to some embodiments of the present invention, the ceramic toothed plate is provided with a locking block and a locking groove, and the locking block on the ceramic toothed plate can be embedded in the locking groove of the adjacent ceramic toothed plate in the radial direction of the outer cylinder.

[0007] According to some embodiments of the present invention, the fixing ring and the dovetail plate are connected by fixing bolts, the fixing bolts pass through the fixing ring, and the dovetail plate is provided with threaded holes for the fixing bolts to connect.

[0008] According to some embodiments of the present invention, welding joints are respectively provided on opposite sides of the dovetail plate along its length, and the dovetail plate and the outer cylinder are welded at the welding joints.

[0009] According to some embodiments of the present invention, the inner wall of the fixing ring is provided with a plurality of positioning grooves, and the dovetail plate is partially embedded in the corresponding positioning groove.

[0010] According to some embodiments of the present invention, the fixing component includes a fixing block and a locking screw. The fixing block has a locking hole, and the locking screw is threaded into the locking hole. The locking screw can abut against the side wall of the notch of the fixing ring. The fixing block has an operating groove on the side away from the inner wall of the outer cylinder. The operating groove communicates with the locking hole to facilitate the rotation of the locking screw.

[0011] According to some embodiments of this utility model, the operating groove is provided with a chamfer.

[0012] According to some embodiments of this utility model, the fixing component is bolted to the inner wall of the outer cylinder.

[0013] According to some embodiments of this utility model, the inner wall of the outer cylinder, the dovetail plate, and the ceramic toothed plate are all coated with adhesive at their contact points.

[0014] According to some embodiments of this utility model, the fixing rings are provided at intervals of multiple.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the installation structure according to one embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the combination of the fixing ring and the dovetail plate according to one embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of a fixing ring according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a fixing component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of a fixing block according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the outer cylinder of one embodiment of the present utility model; Figure 9 This is a schematic diagram of a ceramic toothed plate according to an embodiment of the present invention.

[0017] Icon labels: Outer cylinder 100, fixing groove 110; 200 retaining ring, 210 notch, 220 positioning groove; Fixing component 300, fixing block 310, locking hole 311, operating groove 312, locking screw 320; Dovetail plate 400, weld joint 410; Ceramic toothed plate 500, dovetail groove 510, locking block 520, locking slot 530; Fixing bolt 600. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 9 As shown, an embodiment of the present invention discloses an installation structure for a ceramic toothed plate for a disc-shaped grinding mill, comprising: an outer cylinder 100, a fixing ring 200, a fixing component 300, and multiple dovetail plates 400. The outer cylinder 100 is cylindrical and made of metal. An annular fixing groove 110 is provided around the inner wall of the outer cylinder 100. The fixing ring 200 is embedded in the fixing groove 110, and a notch 210 is provided on the fixing ring 200, making the fixing ring 200 a C-shaped ring. The fixing ring 200 is made of a metal material with a certain elasticity, such as spring steel, and can undergo elastic deformation to facilitate insertion into the outer cylinder 100. During installation, the fixing ring 200 is compressed and placed into the outer cylinder 100 using its deformable characteristic. When the fixing ring 200 and the fixing groove 110 are aligned, the fixing ring 200 is opened and embedded into the fixing groove 110. The fixing component 300 is located within the fixing groove 110. The fixing component 300 is located in the notch 210. The fixing component 300 supports the fixing ring 200 located on both sides of the notch 210. The fixing component 300 opens the sides of the notch 210, keeping the fixing ring 200 in an open state within the fixing groove 110. The fixing ring 200 is restricted from inward compression deformation by the fixing component 300, thus being fixed in the fixing groove 110 to prevent accidental dislodgement or loosening during subsequent use or installation of the ceramic toothed plate 500. Dovetail plates 400 are all connected to the fixing ring 200. Multiple dovetail plates 400 are arranged parallel to each other at intervals, with equal distances between adjacent dovetail plates 400. The extending direction of the dovetail plates 400 is parallel to the axial direction of the outer cylinder 100. The dovetail plates 400 are used to assist in fixing the ceramic toothed plate 500, which has dovetail grooves 510 for the dovetail plates 400 to be inserted into. The ceramic toothed plate 500 is fixed to the inner wall of the outer cylinder 100 via the dovetail groove 510 and the dovetail plate 400. The dovetail plate 400 and the retaining ring 200 are pre-assembled before being inserted into the outer cylinder 100 as a whole. This pre-assembly allows for a more spacious environment, avoiding the need to individually install and position each dovetail plate 400 within the confined space of the outer cylinder 100, effectively simplifying the installation process and improving manufacturing efficiency. By releasing the support of the fixing component 300, the retaining ring 200 returns to its elastic contraction state, allowing the entire assembly of the retaining ring 200 and the dovetail plate 400 to be removed from the outer cylinder 100. This facilitates convenient maintenance or component replacement.

[0023] Reference Figure 9As shown, the ceramic toothed plate 500 is equipped with a locking block 520 and a locking groove 530. The locking block 520 on the ceramic toothed plate 500 can be embedded in the locking groove 530 of adjacent ceramic toothed plates 500 in the radial direction of the outer cylinder 100. Multiple ceramic toothed plates 500 form a continuous interlocking structure in the radial direction, and multiple independent ceramic toothed plates 500 form an integral ring structure, improving the overall radial rigidity of the ceramic toothed plates 500. During the operation of the disc mill, the ceramic toothed plates 500 face high-frequency vibration and material impact. The interlocking connection between the ceramic toothed plates 500 can effectively suppress the displacement of individual ceramic toothed plates 500, preventing them from falling off or unevenly worn due to loosening. The cooperation between the locking block 520 and the locking groove 530 can seal the gaps between adjacent ceramic toothed plates 500, preventing fine particles from seeping into the gaps between the ceramic toothed plates 500 and the outer cylinder 100 during the grinding process. This avoids material accumulation and friction in the gaps.

[0024] Reference Figures 1 to 8 As shown, the retaining ring 200 and the dovetail plate 400 are connected by a fixing bolt 600. The fixing bolt 600 passes through the retaining ring 200, and the dovetail plate 400 has threaded holes for the fixing bolt 600 to connect. The fixing bolt 600 provides reliable fastening and can be tightened from the outside of the retaining ring 200 using an electric screwdriver. This allows for convenient and precise pre-fixing of the dovetail plate 400 onto the retaining ring 200, improving processing efficiency. Compared to welding, bolted connections avoid the high temperatures of welding that could damage the elastic properties of the retaining ring 200, and bolted connections also allow for the replacement of individual dovetail plates 400.

[0025] Reference Figures 1 to 8 As shown, it can be understood that welding joints 410 are respectively provided on opposite sides of the dovetail plate 400 along its length, and the dovetail plate 400 and the outer cylinder 100 are welded at the welding joints 410. The welding fixation at the ends of the dovetail plate 400 provides necessary auxiliary fixation, enhancing the dovetail plate 400's resistance to circumferential torsion or loosening. After the pre-assembled fixing ring 200 and dovetail plate 400 are placed into and positioned within the outer cylinder 100, final fixation can be completed simply by welding the exposed welding joints 410 at both ends of the dovetail plate 400 at the cylinder opening, reducing reliance on specialized welding fixtures. The welding joints 410 are located close to the opening of the outer cylinder 100, allowing welding operators to weld directly from the cylinder opening. This facilitates the insertion and positioning of the welding torch, avoiding welding within the narrow space inside the cylinder, and improving production efficiency. It is foreseeable that welding will not be required in equipment that requires disassembly in order to ensure maintainability. Only in equipment with high requirements for installation reliability will the dovetail plate 400 and the outer cylinder 100 be welded together.

[0026] Reference Figures 1 to 8As shown, the inner wall of the retaining ring 200 is provided with multiple positioning grooves 220, and the dovetail plate 400 is partially embedded in the corresponding positioning groove 220. Since the dovetail plate 400 is fixed to the retaining ring 200 with only a single bolt, angular misalignment is prone to occur. The positioning groove 220 provides individual positioning for each dovetail plate 400, so that the dovetail plate 400 is precisely aligned to the design position in the circumferential angle along the retaining ring 200, thereby achieving equidistant parallel arrangement of all dovetail plates 400.

[0027] Reference Figures 1 to 8 As shown, the fixing assembly 300 includes a fixing block 310 and a locking screw 320. The fixing block 310 has a locking hole 311, and the locking screw 320 is threaded into the locking hole 311. The locking screw 320 is an internal hexagonal flat-head set screw. The locking screw 320 abuts against the side wall of the notch 210 of the fixing ring 200. An operating groove 312 is provided on the side of the fixing block 310 away from the inner wall of the outer cylinder 100. The operating groove 312 communicates with the locking hole 311 to facilitate rotating the locking screw 320. The design of the operating groove 312 communicating with the locking hole 311 allows an L-shaped internal hexagonal wrench to be inserted into the operating groove 312 to directly rotate the locking screw 320. Rotating the locking screw 320 to press it against the side wall of the notch 210 on the retaining ring 200 can control the expansion force applied to the C-shaped retaining ring 200. The locking screw 320 pushes the two sides of the notch 210 of the retaining ring 200 outward, so that the outer wall of the retaining ring 200 is tightly attached to the retaining groove 110, eliminating looseness and ensuring that the retaining ring 200 can be fixed in the retaining groove 110 under vibration conditions.

[0028] Reference Figure 6 and Figure 7 As shown, it can be understood that a chamfer is provided at the operating slot 312. The chamfer on the operating slot 312 provides ample operating space for the L-shaped internal hex wrench of the rotating locking screw 320, thereby improving installation efficiency.

[0029] Reference Figure 6 and Figure 7 As shown, it can be understood that the fixing component 300 is bolted to the inner wall of the outer cylinder 100. To prevent the fixing component 300 from detaching from the fixing groove 110, a threaded hole is provided in the fixing groove 110 for bolting the fixing block 310. When the locking screw 320 pushes the fixing ring 200, the fixing ring 200 moves in the fixing groove 110 to abut against the fixing block 310.

[0030] Reference Figures 1 to 8 As shown, it can be understood that the inner wall of the outer cylinder 100, the dovetail plate 400, and the ceramic toothed plate 500 that come into contact with each other are all coated with adhesive. After the adhesive cures, it plays an auxiliary fixing role, making the outer cylinder 100, the ceramic toothed plate 500, and the dovetail plate 400 tightly connected.

[0031] Reference Figure 3 As shown, it can be understood that multiple retaining rings 200 are spaced apart. Multiple retaining rings 200 can more effectively secure the dovetail plate 400.

[0032] Usage steps: Apply glue to the positioning groove 220 on the inner wall of the retaining ring 200. Embed the dovetail plate 400 into the corresponding positioning groove 220 of the retaining ring 200. Connect the threaded holes on the retaining ring 200 and the dovetail plate 400 with the fixing bolts 600. Repeat the operation until all dovetail plates 400 are installed at equal intervals. Compress the retaining ring 200 to deform it so that the outer diameter of the retaining ring 200 is smaller than the inner diameter of the outer cylinder 100. Place the retaining ring 200 into the outer cylinder 100 until the retaining ring 200 is axially aligned with the fixing groove 110. The retaining ring 200 elastically expands and embeds into the fixing groove 110. Place the fixing component 300 in the groove. Connect the fixing block 310 to the fixing groove 110 with bolts. Tighten the locking screw 320 with an L-shaped Allen wrench until it locks the side wall of the notch 210. Apply adhesive evenly to the inner wall of the outer cylinder 100, the surface of the dovetail plate 400, and the dovetail groove 510 of the ceramic toothed plate 500. Install multiple ceramic toothed plates 500 onto the dovetail plate 400. Allow the adhesive to cure completely for 24 hours.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mounting structure for a ceramic toothed plate for a disc-shaped grinding mill, characterized in that, include: The outer cylinder (100) is cylindrical, and a fixing groove (110) is provided around the inner wall of the outer cylinder (100). A retaining ring (200) is embedded in the retaining groove (110), and a notch (210) is provided on the retaining ring (200). A fixing component (300) is located in the fixing groove (110) and in the notch (210). The fixing component (300) is used to support the fixing ring (200) located on both sides of the notch (210) so that the fixing ring (200) is kept open in the fixing groove (110). Multiple dovetail plates (400) are provided, each connected to the fixing ring (200). The multiple dovetail plates (400) are arranged in parallel at intervals. The extension direction of the dovetail plates (400) is parallel to the axial direction of the outer cylinder (100). The dovetail plates (400) are used to assist in fixing the ceramic toothed plate (500). The ceramic toothed plate (500) is provided with a dovetail groove (510) for the dovetail plates (400) to be inserted.

2. The mounting structure of the ceramic toothed plate for the disc mill according to claim 1, characterized in that: The ceramic toothed plate (500) is provided with a locking block (520) and a locking groove (530). The locking block (520) on the ceramic toothed plate (500) can be embedded in the locking groove (530) of the adjacent ceramic toothed plate (500) in the radial direction of the outer cylinder (100).

3. The mounting structure of the ceramic toothed plate for the disc mill according to claim 1, characterized in that: The fixing ring (200) is connected to the dovetail plate (400) by a fixing bolt (600), the fixing bolt (600) passes through the fixing ring (200), and the dovetail plate (400) is provided with a threaded hole for the fixing bolt (600) to be connected.

4. The mounting structure of the ceramic toothed plate for the disc mill according to claim 3, characterized in that: Welding joints (410) are provided on opposite sides of the dovetail plate (400) along its length, and the dovetail plate (400) and the outer cylinder (100) are welded at the welding joints (410).

5. The mounting structure of the ceramic toothed plate for the disc mill according to claim 4, characterized in that: The inner wall of the fixing ring (200) is provided with a plurality of positioning grooves (220), and the dovetail plate (400) is partially embedded in the corresponding positioning grooves (220).

6. The mounting structure of the ceramic toothed plate for the disc mill according to claim 5, characterized in that: The fixing component (300) includes a fixing block (310) and a locking screw (320). The fixing block (310) has a locking hole (311), and the locking screw (320) is threaded into the locking hole (311). The locking screw (320) can abut against the side wall at the notch (210) of the fixing ring (200). The fixing block (310) has an operating groove (312) on the side away from the inner wall of the outer cylinder (100). The operating groove (312) communicates with the locking hole (311) to facilitate the rotation of the locking screw (320).

7. The mounting structure of the ceramic toothed plate for the disc mill according to claim 6, characterized in that: The operating groove (312) is chamfered.

8. The mounting structure of the ceramic toothed plate for the disc mill according to claim 7, characterized in that: The fixing component (300) is bolted to the inner wall of the outer cylinder (100).

9. The mounting structure of the ceramic toothed plate for the disc mill according to claim 1, characterized in that: The inner wall of the outer cylinder (100), the dovetail plate (400), and the ceramic toothed plate (500) that come into contact with each other are all coated with adhesive.

10. The mounting structure of the ceramic toothed plate for the disc mill according to claim 1, characterized in that: The fixed rings (200) are spaced out in multiples.

Images