High-strength roll shaft for silicon rod cutting

Abstract

The utility model relates to a high-strength roll shaft for silicon rod cutting, which comprises a cylinder body and support shaft covers, the support shaft covers are arranged at two ends of the cylinder body, the cylinder body comprises an inner cylinder and an outer cylinder which are coaxially arranged, a hollow cavity is formed between the inner cylinder and the outer cylinder, the hollow cavity is divided into a plurality of pressure-bearing cavities by reinforcing rib plates which are uniformly distributed in the circumferential direction, and the pressure-bearing cavities are communicated with the inner cylinder and the outer cylinder. The inner cylinder, the outer cylinder and the reinforcing rib plate are integrally formed by aluminum materials in an extrusion mode, the inner cylinder and the outer cylinder are connected with the supporting shaft cover through bolts at the same time, the supporting shaft cover comprises a shaft head and a cover body, a positioning protruding ring is arranged on the inner side of the cover body, positioning grooves are formed in the positions, corresponding to the positioning protruding ring, of the two ends of the cylinder body, and the positioning protruding ring and the positioning grooves form a spigot structure. According to the utility model, the pressure-bearing cavities are uniformly distributed in the circumferential direction, so that the weight of the cylinder body is reduced, and the structural strength and rigidity of the hollow cylinder body are improved; and the inner cylinder and the outer cylinder are simultaneously connected with the supporting shaft cover through bolts, and a seam allowance structure is arranged at the joint, so that the deformation of the joint is reduced, and the overall compression resistance and bending resistance of the roll shaft are ensured.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically to a high-strength roller shaft for cutting silicon rods. Background Technology

[0002] Currently, the mainstream cutting equipment for silicon rods in industry is the CNC multi-wire cutting machine. Its principle is that the metal cutting wire is wound around a set of rollers (also known as rollers) with the same groove pitch to form a parallel wire mesh. The rotation of the rollers drives the metal cutting wire to run at high speed. The diamond powder in the cutting fluid generates friction with the material. At the same time, the worktable rises or falls, cutting the material into multiple thin slices at one time.

[0003] Most cutting rollers on the market are long and slender cylindrical in shape. When using these rollers, they must be lightweight, rigid, and possess sufficient compressive and bending strength to ensure their normal and safe operation during silicon rod cutting. To address this, existing rollers employ a hollow structure to reduce weight. However, hollow structures lack sufficient compressive and bending strength, are prone to deformation over long-term use, and have a shorter lifespan. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a high-strength roller shaft for silicon rod cutting. Multiple reinforcing ribs divide the cavity between the inner and outer cylinders into multiple pressure-bearing chambers. The pressure-bearing chambers are evenly distributed circumferentially, which reduces the weight of the cylinder while preventing deformation due to external pressure, effectively improving the structural strength and rigidity of the hollow cylinder. The inner and outer cylinders are bolted to the support shaft cover, and a stop structure is provided at the connection. The stop structure ensures that the cylinder and the support shaft cover are quickly aligned during assembly, avoiding misalignment, thereby ensuring the coaxiality of the roller shaft. At the same time, it can withstand part of the shear force, reduce the stress on the bolts, improve the connection strength, reduce the deformation at the connection, and ensure the overall compressive and bending strength of the roller shaft.

[0005] The purpose of this utility model is achieved as follows:

[0006] A high-strength roller for silicon rod cutting includes a cylindrical body and a support shaft cover. The cylindrical body has support shaft covers at both ends. The cylindrical body includes an inner cylinder and an outer cylinder arranged coaxially, forming a hollow cavity between the inner and outer cylinders. Circumferentially distributed reinforcing ribs divide the hollow cavity into multiple pressure-bearing chambers. The inner cylinder, outer cylinder, and reinforcing ribs are integrally extruded from aluminum. The inner cylinder and outer cylinder are simultaneously connected to the support shaft cover by bolts. The support shaft cover includes a shaft head and a cover body. A positioning protrusion ring is provided on the inner side of the cover body. Positioning grooves are provided at both ends of the cylindrical body corresponding to the positioning protrusion ring. The positioning protrusion ring and the positioning grooves form a stop structure.

[0007] Preferably, the connection between each reinforcing rib and the inner and outer cylinders is made with a rounded transition.

[0008] Preferably, the inner and outer cylinders have threaded holes on the corresponding bolts at their ends, and the cover has countersunk holes on the corresponding bolts.

[0009] Preferably, the positioning groove is located at the end between the inner cylinder and the outer cylinder, and the reinforcing rib has a clearance notch corresponding to the positioning groove.

[0010] Preferably, the positioning protrusion extends 50-60mm into the cylinder.

[0011] Preferably, the inner ring surface of the positioning convex ring is a conical surface, and the angle between the inner ring surface and the axis is 30°.

[0012] Preferably, the shaft head adopts a hollow design to reserve space for the connection between the inner cylinder and the cover.

[0013] Preferably, there are 6 reinforcing ribs, and the two adjacent reinforcing ribs form a 60° angle.

[0014] The beneficial effects of this utility model are:

[0015] Multiple reinforcing ribs divide the cavity between the inner and outer cylinders into multiple pressure-bearing chambers. The circumferentially evenly distributed pressure-bearing chambers reduce the weight of the cylinder while preventing deformation due to external pressure, effectively improving the structural strength and rigidity of the hollow cylinder. The inner and outer cylinders are bolted to the support shaft cover, and a stop structure is provided at the connection. The stop structure ensures that the cylinder and the support shaft cover are quickly aligned during assembly, avoiding misalignment, thus ensuring the coaxiality of the roller shaft. At the same time, it can withstand some shear force, reduce bolt stress, improve connection strength, reduce deformation at the connection, and ensure the overall compressive and bending strength of the roller shaft. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a high-strength roller shaft for cutting silicon rods according to the present invention.

[0017] Figure 2 This is an assembly diagram of a high-strength roller shaft for cutting silicon rods according to the present invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the end of the middle cylinder.

[0019] Figure 4 This is a schematic diagram of the cross-section of the cylinder.

[0020] Figure 5 This is a schematic diagram of the internal structure of a high-strength roller shaft for cutting silicon rods according to this utility model.

[0021] The components include: cylinder 1; inner cylinder 1.1; outer cylinder 1.2; reinforcing rib 1.3; pressure bearing cavity 1.4; threaded hole 1.5; positioning groove 1.6; support shaft cover 2; shaft head 2.1; cover body 2.2; positioning convex ring 2.2.1; countersunk hole 2.2.2. Detailed Implementation

[0022] See Figure 1-5 This utility model relates to a high-strength roller for silicon rod cutting, comprising a cylinder 1 and a support shaft cover 2. The cylinder 1 has support shaft covers 2 at both ends. The cylinder 1 includes an inner cylinder 1.1 and an outer cylinder 1.2 coaxially arranged, forming a hollow cavity between them. Circumferentially distributed reinforcing ribs 1.3 divide the hollow cavity into multiple pressure-bearing chambers 1.4. The connections between each reinforcing rib 1.3 and the inner cylinder 1.1 and outer cylinder 1.2 are all rounded to improve the strength of the connections. The inner cylinder 1.1, outer cylinder 1.2, and reinforcing ribs 1.3 are integrally extruded from aluminum. The inner cylinder 1.1 and outer cylinder 1.2 are simultaneously bolted to the support shaft cover 2. The end faces of the inner cylinder 1.1 and outer cylinder 1.2 each have threaded holes 1.5 corresponding to the bolts. The support shaft cover 2 includes a shaft head 2.1 and a cover body 2.2. The cover body 2.2 has a positioning protrusion ring 2.2.1 on its inner side. The two ends of the cylinder 1... The positioning protrusion 2.2.1 is provided with a positioning groove 1.6. The positioning protrusion 2.2.1 and the positioning groove 1.6 form a stop structure. The stop structure can ensure that the cylinder 1 and the support shaft cover 2 are quickly aligned with the center during assembly, avoiding misalignment, thereby ensuring the coaxiality of the roller shaft. At the same time, it can withstand part of the shear force, reduce the stress on the bolts, and improve the connection strength. The positioning protrusion 2.2.1 extends into the cylinder 1 by 50-60mm, and the inner ring surface of the positioning protrusion 2.2.1 is a conical surface. The angle between the inner ring surface and the axis is 30°. The shape of the positioning groove 1.6 is adapted to the positioning protrusion 2.2.1. The conical surface of the positioning protrusion 2.2.1 guides the support shaft cover 2 to be quickly inserted into the cylinder 1, reducing the adjustment time. The cover 2.2 is connected to the inner cylinder 1.1 and the outer cylinder 1.2 by bolts, which facilitates the assembly of the cylinder 1 and the support shaft cover 2 and ensures a firm connection. The cover 2.2 is provided with a countersunk hole 2.2.2 corresponding to the bolt.

[0023] The shaft head 2.1 is hollow, which provides space for the connection between the inner cylinder 1.1 and the cover 2.2.

[0024] The reinforcing ribs 1.3 are provided with 6 ribs, and the two adjacent reinforcing ribs 1.3 are at a 60° angle. The pressure-bearing cavities 1.4 are evenly distributed in the circumference, which reduces the weight of the cylinder 1 while preventing deformation due to external pressure, effectively improving the structural strength and rigidity of the hollow cylinder.

[0025] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A high-strength roller for cutting silicon rods, comprising a cylindrical body and supporting shaft covers, wherein supporting shaft covers are provided at both ends of the cylindrical body, characterized in that: The cylinder includes an inner cylinder and an outer cylinder arranged coaxially, forming a hollow cavity between the inner and outer cylinders. Circumferentially distributed reinforcing ribs divide the hollow cavity into multiple pressure-bearing chambers. The inner cylinder, outer cylinder, and reinforcing ribs are integrally extruded from aluminum. The inner cylinder and outer cylinder are simultaneously connected to the support shaft cover by bolts. The support shaft cover includes a shaft head and a cover body. A positioning protrusion ring is provided on the inner side of the cover body. Positioning grooves are provided at both ends of the cylinder body corresponding to the positioning protrusion ring. The positioning protrusion ring and the positioning groove form a stop structure.

2. The high-strength roller shaft for silicon rod cutting according to claim 1, characterized in that: All connections between the reinforcing ribs and the inner and outer cylinders are made with rounded transitions.

3. The high-strength roller shaft for silicon rod cutting according to claim 1, characterized in that: The inner and outer cylinders have threaded holes on the corresponding bolts at their ends, and the cover has countersunk holes on the corresponding bolts.

4. The high-strength roller shaft for silicon rod cutting according to claim 1, characterized in that: The positioning groove is located at the end between the inner cylinder and the outer cylinder, and the reinforcing rib has a clearance notch corresponding to the positioning groove.

5. A high-strength roller shaft for cutting silicon rods according to claim 1, characterized in that: The positioning protrusion extends 50-60mm into the cylinder.

6. A high-strength roller shaft for cutting silicon rods according to claim 5, characterized in that: The inner surface of the positioning convex ring is a conical surface, and the angle between the inner surface and the axis is 30°.

7. A high-strength roller shaft for cutting silicon rods according to claim 1, characterized in that: The shaft head adopts a hollow design to reserve space for the connection between the inner cylinder and the cover.

8. A high-strength roller shaft for cutting silicon rods according to claim 1, characterized in that: The reinforcing ribs are provided in six units, with a 60° angle between adjacent reinforcing ribs.

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