A shaft end protection device for a granular silicon grinding apparatus

Abstract

The utility model discloses a kind of for granular silicon grinding equipment shaft end protection device, it is related to granular silicon grinding related equipment technical field.The utility model includes grinding roller;The shaft end portion position of both ends of grinding roller is equipped with shaft sleeve, the shaft end portion of grinding roller is set to step form, shaft sleeve is matched with the step portion of grinding roller shaft end by protruding portion of end face fixation, the other end surface of shaft sleeve is provided with the baffle plate of sleeve in grinding roller, installation groove is opened in the side wall of baffle plate close to shaft sleeve, the inside of installation groove is provided with the oil seal of sleeve in grinding roller.The utility model passes through the use of shaft sleeve, metal impurities can be avoided to enter into product, avoid affecting product quality, while the cooperation of oil seal and baffle plate is used, the gap between baffle plate and grinding roller is sealed, prevent the material of gap portion continuously to form abrasion to shaft end.

Description

Technical Field

[0001] This utility model belongs to the technical field of equipment related to particle silicon grinding, and in particular relates to a shaft end protection device for particle silicon grinding equipment. Background Technology

[0002] Currently, due to the requirement for small particle size in granular silicon grinding equipment, the adjustment of the gap between grinding rollers is crucial. During grinding, granular silicon flows out along the side of the grinding rollers and accumulates at the junction of the grinding roller shaft and the baffle plate. The continuous wear of the granular silicon on the shaft end eventually causes the polyurethane insulation used to isolate the metal to wear away, exposing the metal and contaminating the grinding material. This design not only affects product quality but also damages the equipment and significantly shortens its operating cycle. The shaft end design of granular silicon grinding equipment has the following defects: Granular silicon products require a high degree of cleanliness. To isolate metals, polyurethane is cast at the shaft end of the grinding equipment. During operation, the shaft end wears down due to the accumulation of granular silicon, causing the polyurethane to detach and introduce metal impurities into the product, affecting product quality. Simultaneously, the lack of a suitable sealing method between the shaft end and the baffle plate allows material to enter and accumulate in the gap during operation. This material continuously wears down the shaft end, resulting in product quality failing to meet production requirements and forcing the equipment to be shut down for maintenance. Therefore, we provide a shaft end protection device for granular silicon grinding equipment to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide a shaft end protection device for a particle silicon grinding equipment. By using a bushing, metal impurities can be prevented from entering the product, thus avoiding affecting product quality. At the same time, the oil seal and the baffle plate work together to seal the gap between the baffle plate and the grinding roller, preventing the material in the gap from continuously causing wear on the shaft end.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a shaft end protection device for a particle silicon grinding equipment, including a grinding roller; a bushing is fitted at both ends of the grinding roller shaft end, the shaft end of the grinding roller is set in a stepped form, the bushing is fitted with the stepped part of the grinding roller shaft end through a protrusion fixed at the end face, and a baffle plate is provided on the other end face of the bushing and fitted on the grinding roller. The baffle plate has an installation groove on the side wall near the bushing, and an oil seal fitted on the grinding roller is provided inside the installation groove.

[0005] The present invention is further provided in that the inner walls of the bushing and the protrusion are provided with sealing grooves, and the sealing grooves are provided with sealing rings fitted at the end of the grinding roller shaft.

[0006] The present invention is further configured such that a locking plate connected to the end face of the baffle plate is fixed on the end face of the bushing near the baffle plate. The side wall of the locking plate is provided with a plurality of locking holes evenly distributed in a ring along the circumference. The side wall of the baffle plate is provided with an assembly hole corresponding to the position of each locking hole. The locking plate is spirally connected to the baffle plate by bolts passing through the assembly hole and the locking hole.

[0007] The present invention is further configured such that a locking plate connected to the end face of the baffle plate is fixed on the end face of the bushing near the baffle plate. The side wall of the locking plate is provided with a plurality of locking holes evenly distributed in a ring along the circumference. The side wall of the baffle plate is provided with an assembly hole corresponding to the position of each locking hole. The locking plate is spirally connected to the baffle plate by bolts passing through the assembly hole and the locking hole.

[0008] The present invention is further configured such that the surface roughness of the locking plate near the baffle plate is Ra1.6, and the mounting groove and the oil seal are fitted with an interference fit.

[0009] This utility model has the following beneficial effects: 1. In this utility model, the bushing is directly installed at the end of the grinding roller shaft. This allows the sealing ring to be directly fitted onto the end of the grinding roller shaft. The sealing ring is compressed by the bushing and has a certain pre-tightening force, which can improve the rotation of the bushing on the end of the grinding roller shaft. The sealing ring seals the gap between the bushing and the end of the grinding roller shaft, preventing silicon powder from leaking out from the gap between the bushing and the end of the grinding roller shaft, and preventing metal impurities from entering the product and affecting product quality.

[0010] 2. This utility model uses a baffle plate mounted on the grinding roller, and the mounting groove and oil seal are interference-fitted. Therefore, after the oil seal is in the mounting groove, the bushing can synchronously drive the baffle plate and oil seal to rotate when it rotates, which can avoid damage to the oil seal. The oil seal is located between the baffle plate and the grinding roller, so the gap between the baffle plate and the grinding roller is sealed to prevent the material in the gap from continuously causing wear on the shaft end. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a structural assembly diagram of the bushing and pin in this utility model.

[0014] Figure 3 This is an exploded view of the baffle plate and oil seal in this utility model.

[0015] Figure 4 This is a cross-sectional view of the grinding roller, bushing, and baffle plate in this utility model.

[0016] Figure 5 This is a cross-sectional view of the structure of the bushing of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1-Grinding roller, 2-Sleeve, 201-Sealing groove, 202-Semi-circular groove, 203-Protrusion, 204-Locking plate, 205-Pin, 206-Sealing ring, 207-Positioning hole, 208-Locking hole, 3-Baffle plate, 301-Assembly hole, 302-Mounting groove, 303-Oil seal. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Please see Figures 1 to 5 This utility model is a shaft end protection device for a particle silicon grinding equipment. By using the bushing 2, metal impurities can be prevented from entering the product and affecting the product quality. At the same time, the oil seal 303 and the baffle plate 3 work together to seal the gap between the baffle plate 3 and the grinding roller 1, preventing the material in the gap from continuously causing wear on the shaft end.

[0020] Specifically, the grinding roller 1 has bushings 2 fitted at both ends of its shaft. The shaft ends of the grinding roller 1 are stepped. The bushings 2 are fitted with the stepped parts of the shaft ends of the grinding roller 1 through protrusions 203 fixed at the end face. The other end face of the bushings 2 is provided with a baffle plate 3 fitted on the grinding roller 1. The side wall of the baffle plate 3 near the bushing 2 has an installation groove 302. The inside of the installation groove 302 is provided with an oil seal 303 fitted on the grinding roller 1. The inner walls of the bushings 2 and the protrusions 203 are provided with sealing grooves 201. The inside of the sealing grooves 201 is provided with sealing rings 206 fitted on the shaft ends of the grinding roller 1. The surface roughness of the locking plate 204 near the baffle plate 3 is Ra1.6. The installation groove 302 and the oil seal 303 are fitted with an interference fit.

[0021] The operation process of this embodiment is as follows: By directly installing the bushing 2 at the shaft end of the grinding roller 1, the sealing ring 206 is directly fitted onto the shaft end of the grinding roller 1. The sealing ring 206 is compressed by the bushing 2, and the sealing ring 206 provides a certain pre-tightening force, which can improve the rotation of the bushing 2 on the shaft end of the grinding roller 1. The sealing ring 206 seals the gap between the bushing 2 and the shaft end of the grinding roller 1, preventing silicon powder from leaking out from the gap between the bushing 2 and the shaft end of the grinding roller 1, and preventing metal impurities from entering the product, thus avoiding affecting the product's performance. To improve product quality, the oil seal 303 is installed in the mounting groove 302. Since the baffle plate 3 is installed on the grinding roller 1 and the mounting groove 302 and the oil seal 303 are interference-fitted, the oil seal 303, when in the mounting groove 302, allows the bushing 2 to rotate synchronously with the baffle plate 3 and the oil seal 303, thus preventing damage to the oil seal 303. Furthermore, since the oil seal 303 is located between the baffle plate 3 and the grinding roller 1, the gap between the baffle plate 3 and the grinding roller 1 is sealed to prevent the material in the gap from continuously causing wear on the shaft end.

[0022] Example 2 Please see Figure 2 , Figure 4 and Figure 5 Based on Example 1, the use of pin 205 can prevent the bushing 2 from being displaced in the axial and rotational directions on the shaft, thus preventing damage to the end of the grinding roller 1 or the bushing 2.

[0023] Specifically, the outer wall of the bushing 2 has multiple sets of semicircular grooves 202 evenly distributed in a ring along its circumference. The inner wall of each set of semicircular grooves 202 has two sets of positioning holes 207 arranged symmetrically on the left and right. Each positioning hole 207 is connected to the inner wall of the bushing 2. Each positioning hole 207 has a pin 205 inserted inside to abut against the circumference of the end of the grinding roller 1 shaft.

[0024] The operation process of this embodiment is as follows: In order to ensure that the bushing 2 is installed on the shaft end of the grinding roller 1 in a stable position, the pin 205 is inserted from the position of the positioning hole 207 so that the pin 205 abuts against the shaft end of the grinding roller 1. Therefore, when the grinding roller 1 rotates, the bushing 2 and the grinding roller 1 can rotate synchronously through the pin 205, thereby preventing the bushing 2 from being displaced in the axial and rotational directions on the shaft and damaging the shaft end of the grinding roller 1 or the bushing 2.

[0025] Example 3 Please see Figure 3 , Figure 4 and Figure 5 Based on Example 1, by assembling and cooperating between the locking plate 204 and the baffle plate 3, the baffle plate 3 and the bushing 2 can rotate synchronously, thus avoiding friction between them.

[0026] Specifically, a locking plate 204 is fixed to the end face of the bushing 2 near the end face of the baffle plate 3, which is connected to the end face of the baffle plate 3. The side wall of the locking plate 204 has a plurality of locking holes 208 evenly distributed in a ring along the circumference. The side wall of the baffle plate 3 has a mounting hole 301 through which each locking hole 208 is located. The locking plate 204 is spirally connected to the baffle plate 3 by bolts passing through the mounting hole 301 and the locking hole 208.

[0027] The operation process of this embodiment is as follows: by passing the bolt through the locking hole 208 and the assembly hole 301 at the same time, the baffle plate 3 and the bushing 2 can be assembled and installed. Therefore, when the grinding roller 1 rotates, the baffle plate 3 and the bushing 2 can rotate synchronously, avoiding friction between the two.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shaft end protection device for a particle silicon grinding equipment, comprising a grinding roller (1); characterized in that: Both ends of the grinding roller (1) are fitted with bushings (2). The ends of the grinding roller (1) are stepped. The bushings (2) are fitted with the stepped parts of the grinding roller (1) through the protrusions (203) fixed on the end face. The other end face of the bushings (2) is provided with a baffle plate (3) fitted on the grinding roller (1). The baffle plate (3) has an installation groove (302) on the side wall near the bushing (2). The installation groove (302) is provided with an oil seal (303) fitted on the grinding roller (1).

2. The shaft end protection device for a particle silicon grinding equipment according to claim 1, characterized in that, The inner walls of the bushing (2) and the protrusion (203) are provided with sealing grooves (201), and the sealing grooves (201) are provided with sealing rings (206) fitted at the end of the grinding roller (1) shaft.

3. The shaft end protection device for a particle silicon grinding equipment according to claim 1, characterized in that, The bushing (2) has multiple sets of semicircular grooves (202) evenly distributed in a ring along its periphery. Each set of semicircular grooves (202) has two sets of positioning holes (207) symmetrically arranged on the inner wall. Each positioning hole (207) is connected to the inner wall of the bushing (2). Each positioning hole (207) has a pin (205) inserted inside to abut against the periphery of the shaft end of the grinding roller (1).

4. The shaft end protection device for a particle silicon grinding equipment according to claim 1, characterized in that, The bushing (2) is fixed with a locking plate (204) that is connected to the end face of the baffle plate (3) near the end face of the baffle plate (3). The side wall of the locking plate (204) is provided with a plurality of locking holes (208) that are evenly distributed in a ring along the periphery. The side wall of the baffle plate (3) is provided with an assembly hole (301) at the position corresponding to each locking hole (208). The locking plate (204) is spirally connected to the baffle plate (3) by bolts passing through the assembly hole (301) and the locking hole (208).

5. A shaft end protection device for a particle silicon grinding equipment according to claim 4, characterized in that, The surface roughness of the locking plate (204) near the baffle plate (3) is Ra1.6, and the mounting groove (302) and the oil seal (303) are fitted with an interference fit.

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