Novel material wandering star wheel for hard disk substrate processing

By designing a wear-resistant plate and bolt fixing structure on the planetary gear during hard disk substrate processing, the problem of material waste caused by hard disk substrate wear is solved, the wear resistance and heat dissipation of the planetary gear are improved, and the service life is extended.

CN224074092UActive Publication Date: 2026-04-03SHENZHEN GREATWALL KAIFA PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The planetary gears used in existing hard disk substrate processing suffer severe wear during use due to the thinning of the hard disk substrate, requiring frequent replacement and resulting in material waste.

Method used

A novel planetary gear material for hard disk substrate processing is designed, which adopts a wear-resistant plate and bolt fixing structure. The wear-resistant plate is removable and replaceable, and combined with an anti-oxidation layer, vent holes and thermal pads to improve service life.

Benefits of technology

It extends the lifespan of the planetary wheel, reduces material waste, improves utilization, and enhances wear resistance and heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224074092U_ABST
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Abstract

The utility model discloses a novel material wandering star wheel for hard disk substrate processing, which belongs to the field of hard disk substrate processing devices and comprises a wandering star wheel body, a plurality of tooth sockets distributed in an annular array are arranged on the side wall of the wandering star wheel body, and a plurality of placing holes distributed in an annular array are arranged on the surface of the wandering star wheel body. A plurality of air holes distributed in an annular array are formed in the surface of the wandering star wheel body, the two sides of the wandering star wheel body are each coated with an anti-oxidation layer, and the two sides of the wandering star wheel body are each provided with a wear-resisting plate. The wear-resisting plates are arranged on the two sides of the wandering star wheel body, the wear resistance of the wandering star wheel body can be enhanced, the effect of protecting the wandering star wheel body is achieved, the wear-resisting plates and the wandering star wheel body are fixed through the bolts, and therefore workers can replace the damaged wear-resisting plates conveniently, the wandering star wheel body does not need to be replaced, and material waste is reduced; and the use efficiency of the wandering star wheel body is improved.
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Description

Technical Field

[0001] This utility model relates to the field of hard disk substrate processing equipment, and more specifically, to a planetary wheel, a novel material for hard disk substrate processing. Background Technology

[0002] A hard drive substrate is the medium that carries data storage in a hard drive. The hard drive substrate is made of a sturdy and durable material. Magnetic powder is attached to the surface of an aluminum alloy disc. The hard drive substrate then needs to be polished. Some existing hard drive substrates need to be placed in a planetary wheel during polishing to achieve the effect of clamping the hard drive substrate. The planetary wheel is a fixture used in various flat polishing processes such as glass, lenses, silicon wafers, and hard drives. It is also known as a polishing jig or polishing pad.

[0003] Existing planetary gears for hard disk substrate processing involve loading the hard disk substrate onto the planetary gear. Because current grinding methods use two grinding discs to simultaneously grind both sides of the substrate on the planetary gear, and with the advancement of technology, hard disk substrates are becoming increasingly thinner, some areas of the planetary gear may wear down after a period of use, requiring multiple replacements and resulting in material waste. Therefore, there is an urgent need for a new planetary gear material for hard disk substrate processing to solve these problems. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a novel material for hard disk substrate processing: a planetary gear, employing the following technical solution:

[0005] A novel planetary gear material for hard disk substrate processing includes a planetary gear body. The sidewalls of the planetary gear body have multiple grooves arranged in a circular array. The surface of the planetary gear body has multiple placement holes arranged in a circular array and multiple ventilation holes arranged in a circular array. Both sides of the planetary gear body are coated with an anti-oxidation layer. Wear-resistant plates are provided on both sides of the planetary gear body. Multiple mounting grooves arranged in a circular array are provided on opposite sides of the two wear-resistant plates. Bolts are installed in each mounting groove. Bolts on the same side penetrate the wear-resistant plate on the same side. Threaded grooves matching the bolts on the same side are provided on both sides of the planetary gear body.

[0006] By adopting the above technical solution, the planetary wheel body has placement holes on its surface, facilitating the placement of products to be processed by workers and serving to clamp and fix the products. The planetary wheel body also features ventilation holes for heat dissipation. An anti-oxidation layer is coated on both sides of the planetary wheel body to protect it from oxidation and corrosion. Wear-resistant plates are bolted to both sides of the planetary wheel body, protecting it and reducing wear. When the wear-resistant plates wear down after prolonged use, they can be removed and replaced by rotating the bolts in the opposite direction to disengage them from the threaded grooves on both sides of the planetary wheel body. This eliminates the need to replace the entire planetary wheel body, improving its utilization rate and reducing material waste.

[0007] Furthermore, multiple positioning blocks arranged in a circular array are fixedly installed on the opposite sides of the two wear-resistant plates, and positioning grooves matching the positioning blocks on the same side are opened on both sides of the planetary wheel body.

[0008] By adopting the above technical solution, the positioning blocks are set on the opposite side of the two wear-resistant plates. When assembling the wear-resistant plates, the workers align the wear-resistant plates with the planetary wheel body, so that the positioning blocks engage with the positioning grooves opened on the surface of the planetary wheel body. This can play the role of positioning and stabilizing the wear-resistant plates, which is convenient for subsequent fixing.

[0009] Furthermore, each of the positioning blocks is fixedly fitted with a rubber sleeve on its sidewall.

[0010] By adopting the above technical solution, the rubber sleeve on the side wall of the positioning block helps to improve the stability of the engagement between the positioning block and the positioning groove, which in turn helps to maintain the stability of the assembly of the wear-resistant plate and the planetary wheel body, and also helps to reduce the wear between the positioning block and the planetary wheel body.

[0011] Furthermore, heat-conducting pads are provided on both sides of the planetary wheel body, and the heat-conducting pads are located between the anti-oxidation layer and the wear-resistant plate on the same side.

[0012] By adopting the above technical solution, the heat-conducting pads on both sides of the planetary wheel body can improve the heat dissipation efficiency of the planetary wheel body, reduce the friction between the planetary wheel body and the wear-resistant plate, protect the planetary wheel body, and improve the tightness between the planetary wheel body and the wear-resistant plate.

[0013] Furthermore, reinforcing ribs are embedded on both sides of the planetary wheel body.

[0014] By adopting the above technical solution, reinforcing ribs are embedded on both sides of the planetary wheel body, which helps to improve the rigidity of the planetary wheel body.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] (1) In this utility model, the wear-resistant plates on both sides of the planetary wheel body are designed to enhance the wear resistance of the planetary wheel body and achieve the effect of protecting the planetary wheel body. The wear-resistant plates and the planetary wheel body are fixed together by bolts, so it is convenient for the staff to replace the damaged wear-resistant plates without replacing the planetary wheel body, which reduces the waste of materials and helps to improve the efficiency of the planetary wheel body.

[0017] (2) In this utility model, the bottom of the wear-resistant plate is provided with a positioning block. The positioning block engages with the positioning groove opened on the side wall of the planetary wheel body to fix the wear-resistant plate, which facilitates subsequent fixing. A heat-conducting pad is provided between the wear-resistant plate and the planetary wheel body, which can both conduct heat and isolate the wear-resistant plate from direct contact with the planetary wheel body, thereby helping to reduce the wear on the planetary wheel body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0020] Figure 3 This is an unfolded view of the present invention;

[0021] Figure 4 This utility model Figure 3 A magnified view of B in the middle.

[0022] Explanation of the labels in the diagram:

[0023] 1. Planetary wheel body; 2. Gear groove; 3. Placement hole; 4. Ventilation hole; 5. Mounting groove; 6. Bolt; 7. Reinforcing rib; 8. Anti-oxidation layer; 9. Thermal pad; 10. Wear-resistant plate; 11. Positioning block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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 protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0028] Please see Figure 1-4 A novel planetary gear material for hard disk substrate processing includes a planetary gear body 1. The sidewalls of the planetary gear body 1 have multiple grooves 2 arranged in a circular array. The surface of the planetary gear body 1 has multiple placement holes 3 arranged in a circular array and multiple ventilation holes 4 arranged in a circular array. Reinforcing ribs 7 are embedded on both sides of the planetary gear body 1. An anti-oxidation layer 8 is coated on both sides of the planetary gear body 1. The placement holes 3 on the surface of the planetary gear body 1 facilitate the placement of the product to be processed, serving to clamp and fix the product. The ventilation holes 4 also facilitate heat dissipation. The anti-oxidation layer 8 on both sides of the planetary gear body 1 protects it from oxidation and corrosion. The reinforcing ribs 7 on both sides of the planetary gear body 1 improve its rigidity.

[0029] The planetary wheel body 1 has wear-resistant plates 10 on both sides. On opposite sides of each wear-resistant plate 10, multiple mounting slots 5 arranged in a circular array are provided. Bolts 6 are installed in each mounting slot 5, and all bolts 6 on the same side penetrate the wear-resistant plate 10 on the same side. Threaded grooves matching the bolts 6 are provided on both sides of the planetary wheel body 1. Heat-conducting pads 9 are provided on both sides of the planetary wheel body 1, located between the anti-oxidation layer 8 and the wear-resistant plates 10 on the same side. The wear-resistant plates 10 are placed on both sides of the planetary wheel body 1 and then fixed by screwing the bolts 6 into the threaded grooves on both sides of the planetary wheel body 1. The wear-resistant plates 10 protect the planetary wheel body 1, reducing wear. When the wear-resistant plates 10 wear after prolonged use, the bolts 6 can be rotated in the opposite direction to disengage them from the threaded grooves on both sides of the planetary wheel body 1, allowing for the replacement of the damaged wear-resistant plates 10 without replacing the entire planetary wheel body 1. This improves the utilization rate of the planetary wheel body 1 and reduces material waste.

[0030] On each of the two wear-resistant plates 10, a plurality of positioning blocks 11 arranged in a circular array are fixedly installed on opposite sides. The planetary wheel body 1 has positioning grooves on both sides that match the positioning blocks 11 on the same side. The sidewalls of the positioning blocks 11 are fixedly fitted with rubber sleeves. With the positioning blocks 11 on opposite sides of the two wear-resistant plates 10, when assembling the wear-resistant plates 10, the workers align the wear-resistant plates 10 with the planetary wheel body 1, so that the positioning blocks 11 engage with the positioning grooves on the surface of the planetary wheel body 1. This can play the role of positioning and stabilizing the wear-resistant plates 10, which is convenient for subsequent fixing. The rubber sleeves on the sidewalls of the positioning blocks 11 help improve the stability of the engagement between the positioning blocks 11 and the positioning grooves, thereby helping to maintain the stability of the assembly of the wear-resistant plates 10 and the planetary wheel body 1, and also helping to reduce the wear between the positioning blocks 11 and the planetary wheel body 1.

[0031] The implementation principle of this utility model embodiment is as follows: A placement hole 3 is provided on the surface of the planetary wheel body 1, facilitating the placement of the product to be processed by the operator, thus clamping and fixing the product. The surface of the planetary wheel body 1 also features ventilation holes 4 for heat dissipation. An anti-oxidation layer 8 is coated on both sides of the planetary wheel body 1 to protect it and prevent oxidation and corrosion. Wear-resistant plates 10 are fixedly installed on both sides of the planetary wheel body 1 by bolts 6. These wear-resistant plates 10 protect the planetary wheel body 1 and reduce wear. When the wear-resistant plates 10 wear down after prolonged use, the bolts 6 can be rotated in the opposite direction to disengage them from the threaded grooves on both sides of the planetary wheel body 1, allowing for the removal and replacement of the damaged wear-resistant plates 10 without replacing the planetary wheel body 1. This improves the utilization rate of the planetary wheel body 1 and reduces material waste.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A new type of material for processing hard disk substrates star wheel, comprising a star wheel body (1), characterized in that: The side wall of the wandering star wheel body (1) is provided with a plurality of tooth grooves (2) arranged in a ring array, the surface of the wandering star wheel body (1) is provided with a plurality of placement holes (3) arranged in a ring array, the surface of the wandering star wheel body (1) is provided with a plurality of air permeable holes (4) arranged in a ring array, both sides of the wandering star wheel body (1) are coated with an oxidation-resistant layer (8), both sides of the wandering star wheel body (1) are provided with wear-resistant plates (10), a plurality of mounting grooves (5) arranged in a ring array are formed on the opposite sides of the two wear-resistant plates (10), a bolt (6) is arranged in each mounting groove (5), the bolts (6) on the same side penetrate the wear-resistant plates (10) on the same side, and screw grooves matched with the bolts (6) on the same side are formed on both sides of the wandering star wheel body (1).

2. A new type of material of hard disk substrate processing star wheel according to claim 1, characterized in that: The opposite sides of the two wear-resistant plates (10) are fixedly provided with a plurality of positioning blocks (11) arranged in a ring array, and the sides of the wandering star wheel body (1) are provided with positioning grooves matched with the positioning blocks (11) on the same side.

3. A new type of material of hard disk substrate processing star wheel according to claim 2, characterized in that: The side wall of the positioning block (11) is fixedly provided with a rubber sleeve.

4. The new material of a star wheel for hard disk substrate processing according to claim 1, characterized in that: Both sides of the wandering star wheel body (1) are provided with heat-conducting pads (9), and the heat-conducting pads (9) are located between the oxidation-resistant layers (8) and the wear-resistant plates (10) on the same side.

5. The new material of a star wheel for hard disk substrate processing according to claim 1, characterized in that: Both sides of the wandering star wheel body (1) are embedded with reinforcing ribs (7).