Gap bridge wheel, gap bridge wheel assembly and silicon core cutting mechanism

Abstract

The utility model relates to the technical field of silicon core cutting, in particular to a gap bridge wheel, a gap bridge wheel assembly and a silicon core cutting mechanism, the gap bridge wheel comprises a main shaft, at least two driven wheels, a rolling bearing, a fixed support and a mounting sleeve, the driven wheels are rotatably connected with the main shaft through the rolling bearing, and the fixed support comprises a main shaft mounting part. A non-circular mounting hole is formed in the main shaft mounting part; the matching surface of the mounting sleeve is in interference fit with the main shaft, a first mounting part and a second mounting part are arranged on the mounting surface of the mounting sleeve, the first mounting part abuts against the rolling bearing or the driven wheel, and the second mounting part is matched with the non-circular mounting hole. According to the gap bridge wheel, the fixing support and the mounting sleeve are matched with the rolling bearing or the driven wheel to achieve circumferential limiting and axial limiting of the main shaft and axial limiting of the driven wheel, the situation that the main shaft is driven to move when the driven wheel in the gap bridge wheel rotates can be avoided, stable work of the gap bridge wheel is guaranteed, and meanwhile the service life of the main shaft is prolonged. Connecting pieces between the driven wheel and the main shaft are simplified, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of silicon core cutting technology, and in particular to a bridge wheel, a bridge wheel assembly, and a silicon core cutting mechanism. Background Technology

[0002] Currently, conventional silicon core cutting mechanisms wind the cutting wire around guide rollers during silicon core cutting. The guide rollers then tighten the cutting wire to achieve the cut. To shorten the wire bow and reduce cutting time, a bridging roller is typically placed between two opposing guide rollers. The guide rollers generally include one driving roller and one following roller, while the bridging rollers have two driven rollers mounted on the same spindle. The specific structure of the driven rollers in the bridging rollers is similar to that of the following rollers in the guide rollers. To prevent the rotation of one driven roller from driving the spindle, multiple bearings or spacers are usually placed at the connection points between a single driven roller and both ends of the spindle. This achieves circumferential limiting of the spindle and axial limiting of the driven rollers, resulting in a complex internal structure and high production costs for the bridging rollers. Utility Model Content

[0003] This invention solves the problems in related technologies and proposes a bridge wheel, a bridge wheel assembly, and a silicon core cutting mechanism, which can simplify the connection between the driven wheel and the main shaft while ensuring the stable operation of the bridge wheel and reducing production costs.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] A bridge wheel includes: a main shaft; at least two driven wheels, the driven wheels being rotatably connected to the main shaft via rolling bearings; a fixed bracket, the fixed bracket including a main shaft mounting portion, the main shaft mounting portion having a non-circular mounting hole; and a mounting sleeve, the mating surface of the mounting sleeve being interference-fitted with the main shaft, the mounting surface of the mounting sleeve having a first mounting portion and a second mounting portion, the first mounting portion abutting against the rolling bearing or the driven wheels, and the second mounting portion being adapted to the non-circular mounting hole.

[0006] Preferably, the rolling bearing is a thrust needle roller bearing, and the inner surface of the thrust needle roller bearing is interference-fitted with the spindle.

[0007] According to one embodiment of the present invention, the spindle mounting portion includes a separable upper mounting portion and a lower mounting portion, and the non-circular mounting hole is formed between the upper mounting portion and the lower mounting portion.

[0008] According to one embodiment of the present invention, the non-circular mounting hole is a rhomboid mounting hole.

[0009] According to one embodiment of the present invention, the fixed bracket further includes a support connected to the main shaft mounting portion, and the fixed brackets of two adjacent bridge wheels share the same support portion.

[0010] Furthermore, one side of the support portion is provided with a reinforcing rib that is narrower at the top and wider at the bottom.

[0011] According to one embodiment of the present invention, the rolling bearings are located at both ends of the driven wheel, and the main shaft is provided with a positioning ring, which is used to separate the rolling bearings corresponding to two adjacent driven wheels.

[0012] According to one embodiment of the present invention, the rolling bearings are located at both ends of the driven wheel, and an inner spacer is provided between the main shaft and the driven wheel, the inner spacer being located between two rolling bearings corresponding to the same driven wheel.

[0013] According to one embodiment of the present invention, it further includes: a locking nut, which is mounted on the spindle and located on one side of the spindle mounting portion.

[0014] In addition, to achieve the above objectives, this utility model also proposes a bridge wheel assembly.

[0015] A bridge wheel assembly includes a plurality of bridge wheels as described above.

[0016] In addition, to achieve the above objectives, this utility model also proposes a silicon core cutting mechanism.

[0017] A silicon core cutting mechanism includes multiple sets of guide wheel assemblies and a bridge wheel assembly as described above. Each set of guide wheel assemblies includes two symmetrically arranged guide wheels. Each bridge wheel in the bridge wheel assembly corresponds to one of the guide wheels and is located between the two guide wheels.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: By providing a non-circular mounting hole on the main shaft mounting part of the fixed bracket, the first mounting part of the mounting sleeve abuts against the rolling bearing or driven wheel, and the second mounting part is adapted to the non-circular mounting hole, thereby realizing circumferential and axial limiting of the main shaft and axial limiting of the driven wheel. This can prevent the driven wheel in the bridge wheel from driving the main shaft to move when it rotates. While ensuring the stable operation of the bridge wheel, it simplifies the connection between the driven wheel and the main shaft and reduces production costs. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of a bridge wheel according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A magnified view of a portion of circle A in the center;

[0021] Figure 3 This is a schematic diagram of the structure of a bridge wheel according to an embodiment of the present invention, omitting the upper mounting part of two driven wheels and a fixed bracket;

[0022] Figure 4 This is a schematic diagram of the structure of a fixed bracket according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a bridge wheel assembly according to an embodiment of the present invention;

[0024] Figure 6 This is a top view of a silicon core cutting mechanism according to an embodiment of the present invention.

[0025] In the picture:

[0026] 1. Main spindle; 11. Positioning ring; 2. Driven wheel; 3. Rolling bearing; 4. Fixed bracket; 41. Main spindle mounting part; 411. Upper mounting part; 412. Lower mounting part; 42. Support part; 43. Reinforcing rib; 5. Mounting sleeve; 51. Mating surface; 52. Mounting surface; 53. First mounting part; 54. Second mounting part; 6. Rubber sleeve; 7. Locking nut; 8. Inner spacer; 10. Bridge wheel; 20. Guide wheel. Detailed Implementation

[0027] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] like Figures 1 to 3As shown, the bridge wheel of this utility model embodiment includes: a main shaft 1, at least two driven wheels 2, rolling bearings 3, a fixed bracket 4, and a mounting sleeve 5. The driven wheels 2 may have grooves suitable for the passing of cutting lines, or a rubber sleeve 6 may be fitted onto the driven wheels 2, with grooves 61 formed on the rubber sleeve 6, etc. This embodiment does not impose any limitations. The driven wheels 2 are rotatably connected to the main shaft 1 via the rolling bearings 3. Specifically, the rolling bearings 3 may be fitted onto the main shaft 1, and the rolling bearings 3 and driven wheels 2 are in transition fit. The fixed bracket 4 includes a main shaft mounting portion 41, which has non-circular mounting holes, such as square or hexagonal mounting holes. The mating surface 51 of the mounting sleeve 5 is interference-fitted with the main shaft 1. The mounting surface 52 of the mounting sleeve 5 has a first mounting portion 53 and a second mounting portion 54. The first mounting portion 53 abuts against the rolling bearings 3 or the driven wheels 2, and the second mounting portion 54 is adapted to the non-circular mounting holes.

[0029] In this embodiment, the bridge wheel has a non-circular mounting hole on the main shaft mounting part 41 of the fixed bracket 4, so that the first mounting part 53 of the mounting sleeve 5 abuts against the rolling bearing 3 or the driven wheel 2, and the second mounting part 54 is adapted to the non-circular mounting hole. This achieves circumferential and axial limiting of the main shaft 1 and axial limiting of the driven wheel 2. It can prevent the driven wheel 2 from driving the main shaft 1 to move when it rotates. Compared with the bridge wheel in the prior art, it simplifies the connection between the driven wheel 2 and the main shaft 1 while ensuring the stable operation of the bridge wheel, and reduces the production cost.

[0030] In one embodiment of this utility model (not shown), a seal, such as a sealing ring, may be provided between the main shaft 1 and the rolling bearing 3 to ensure a stable internal environment of the bearing, reduce vibration, and ensure stable operation of the bridge wheel.

[0031] Preferably, the rolling bearing 3 can be a thrust needle roller bearing, the inner surface of which can be interference-fitted with the spindle 1. Compared with ordinary rolling bearings 3, such as deep groove ball bearings, the thrust needle roller bearing can not only withstand radial loads but also has a stronger axial load-bearing capacity. Specifically, a thrust needle roller bearing of model GBRB25 can be used, but this embodiment is not limited thereto.

[0032] It is understandable that the cutting wire of a vertical wire cutting machine, such as diamond wire, will exert a large normal force on the driven wheel 2 during movement. If the spindle 1 is axially displaced, the cutting wire will cause excessive wear on the driven wheel 2 or the rubber sleeve 6 on the driven wheel 2, affecting the service life of the driven wheel 2. Using a thrust roller bearing with stronger axial load capacity, together with the mounting sleeve 5 and the fixed bracket 4, can prevent the spindle 1 from being displaced due to axial force and ensure the running accuracy of the bridge wheel.

[0033] like Figure 1 and 2As shown, in one embodiment of the present invention, the bridge wheel may further include a locking nut 7, which is installed on the main shaft 1 and located on one side of the main shaft mounting part 41, and is used to provide axial locking force to the main shaft 1 to prevent axial displacement of the main shaft 1.

[0034] like Figure 1 and 3 As shown, in one embodiment of this utility model, the rolling bearing 3 is located at both ends of the driven wheel 2, and the main shaft 1 is provided with a positioning ring 11, which is used to separate the rolling bearing 3 corresponding to two adjacent driven wheels 2.

[0035] like Figure 1 As shown, in one embodiment of this utility model, the rolling bearings 3 are located at both ends of the driven wheel 2, and an inner spacer 8 is provided between the main shaft 1 and the driven wheel 2. The inner spacer 8 is located between two rolling bearings 3 corresponding to the same driven wheel 2, providing reverse support force for the two rolling bearings 3, reducing the wear of the rolling bearings 3 on the inner wall of the driven wheel 2, and ensuring the service life of the bridge wheel.

[0036] like Figure 3 As shown, in one embodiment of this utility model, the spindle mounting part 41 includes a separable upper mounting part 411 and a lower mounting part 412, with a non-circular mounting hole formed between the upper mounting part 411 and the lower mounting part 412. When installing the spindle 1 and the driven wheel 2, the mounting sleeve 5 can be first installed on the spindle 1 with the rolling bearing 3 and the driven wheel 2 installed. Then, the second mounting part 54 of the mounting sleeve 5 is placed on the lower mounting part 412, and the second mounting part 54 is adapted to the non-circular mounting hole. Finally, the upper mounting part 411 is directly reset and fixed, thus realizing the installation of the bridge wheel. The installation process is relatively simple and easy to operate.

[0037] Preferably, the non-circular mounting hole is a diamond-shaped mounting hole (e.g., Figure 4 As shown, when the second mounting part 54 is assembled in the rhomboid mounting hole, it can generate a uniformly distributed constraint force in the circumferential direction, effectively resisting rotational torque; moreover, the difference between the major and minor axes of the rhombus results in higher circumferential limiting stiffness, which can improve the stability of circumferential limiting. The four corners in the rhomboid mounting hole can be designed as transition fillets to disperse stress concentration, avoid local overload, and improve the fatigue life of the spindle mounting part 41 and the mounting sleeve 5.

[0038] like Figure 3 and 4As shown, in one embodiment of this utility model, the fixed bracket 4 further includes a support part 42 connected to the main shaft mounting part 41. The fixed brackets 4 of two adjacent bridge wheels share the same support part 42. On the one hand, since multiple bridge wheels can be connected through the fixed bracket 4, the relative position of each bridge wheel in the bridge wheel assembly can be fixed, which facilitates the overall installation of the bridge wheel assembly. On the other hand, since the bridge wheel assembly composed of multiple bridge wheels has a large load, when the bridge wheel assembly is fixedly installed in the vertical wire cutting equipment, the position is not easy to shift, and the stability is high.

[0039] Furthermore, a reinforcing rib 43 that is narrower at the top and wider at the bottom may be provided on one side of the support part 42 to improve the stability of the support part 42.

[0040] In addition, to achieve the above objectives, this utility model also proposes a bridge wheel assembly.

[0041] like Figure 5 As shown, the linchpin assembly of this utility model includes a plurality of linchpins 10 as described above, such as 4 or 6, and adjacent linchpins 10 can be arranged as follows: Figure 4 The fixed bracket 4 shown is connected. In some other embodiments of this utility model, two fixed brackets 4 can be configured for each bridge wheel 10 according to actual needs, and this embodiment does not limit this.

[0042] The bridge wheel assembly of this utility model embodiment, since it includes the bridge wheel as described above, also has the above-mentioned beneficial effects.

[0043] In addition, to achieve the above objectives, this utility model also proposes a silicon core cutting mechanism.

[0044] like Figure 6 As shown, the silicon core cutting mechanism of this utility model embodiment includes multiple sets of guide wheel assemblies and a bridge wheel assembly as described above. Each set of guide wheel assemblies includes two symmetrically arranged guide wheels 20. Each bridge wheel 10 in the bridge wheel assembly corresponds to one guide wheel 20 and is located between the two guide wheels 20.

[0045] It is understood that when the number of guide wheel assemblies is 3, the corresponding number of guide wheels 20 and bridge wheels 10 in the silicon core cutting mechanism is 6, thus enabling the cutting of triangular silicon cores. In some other embodiments of this utility model, the number of guide wheel assemblies can be set according to the shape of the silicon core to be cut, and the number of guide wheels 20 and bridge wheels 10 can be set accordingly. For example, when the silicon core to be cut is square, the number of guide wheel assemblies can be set to 2, at which time the number of guide wheels 20 is 4 and the number of bridge wheels 10 is 4, etc. This embodiment does not impose any limitations.

[0046] The silicon core cutting mechanism of this utility model embodiment, since it includes the bridge wheel as described above, also has the above-mentioned beneficial effects.

[0047] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A bridge wheel, comprising a main shaft (1) and at least two driven wheels (2), wherein the driven wheels (2) are rotatably connected to the main shaft (1) via rolling bearings (3), characterized in that, The bridge wheel also includes: A fixed bracket (4) is provided, the fixed bracket (4) including a spindle mounting part (41), the spindle mounting part (41) being provided with a non-circular mounting hole; Mounting sleeve (5), the mating surface (51) of the mounting sleeve (5) is interference-fitted with the main shaft (1), the mounting surface (52) of the mounting sleeve (5) is provided with a first mounting part (53) and a second mounting part (54), the first mounting part (53) abuts against the rolling bearing (3) or the driven wheel (2), and the second mounting part (54) is adapted to the non-circular mounting hole.

2. The bridge wheel according to claim 1, characterized in that, The rolling bearing (3) is a thrust needle roller bearing, and the inner surface of the thrust needle roller bearing is interference-fitted with the main shaft (1).

3. The bridge wheel according to claim 1, characterized in that, The spindle mounting portion (41) includes a separable upper mounting portion (411) and a lower mounting portion (412), and the non-circular mounting hole is formed between the upper mounting portion (411) and the lower mounting portion (412).

4. The bridge wheel according to claim 1 or 3, characterized in that, The non-circular mounting hole is a rhomboid mounting hole.

5. The bridge wheel according to claim 1, characterized in that, The fixed bracket (4) also includes a support part (42) connected to the main shaft mounting part (41), and the fixed brackets (4) of two adjacent bridge wheels share the same support part (42).

6. The bridge wheel according to claim 5, characterized in that, The support part (42) is provided with a reinforcing rib (43) that is narrow at the top and wide at the bottom on one side.

7. The bridge wheel according to claim 1, characterized in that, The rolling bearing (3) is located at both ends of the driven wheel (2), and the main shaft (1) is provided with a positioning ring (11). The positioning ring (11) is used to separate the rolling bearings (3) corresponding to two adjacent driven wheels (2).

8. The bridge wheel according to claim 1, characterized in that, The rolling bearings (3) are located at both ends of the driven wheel (2). An inner spacer (8) is also provided between the main shaft (1) and the driven wheel (2). The inner spacer (8) is located between two rolling bearings (3) corresponding to the same driven wheel (2).

9. The bridge wheel according to claim 1, characterized in that, Also includes: Locking nut (7), which is mounted on the spindle (1) and located on one side of the spindle mounting part (41).

10. A bridge wheel assembly, characterized in that, include: Multiple bridge wheels (10) as described in any one of claims 1-9.

11. A silicon core cutting mechanism, characterized in that, It includes multiple sets of guide wheel assemblies and a bridge wheel assembly as described in claim 10. Each set of guide wheel assemblies includes two symmetrically arranged guide wheels (20). Each bridge wheel (10) in the bridge wheel assembly corresponds to one of the guide wheels (20) and is located between the two guide wheels (20).

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