Automobile gearbox shaft inner hole duplex ceramic grinding wheel

Abstract

The utility model discloses an automobile gearbox shaft inner hole duplex ceramic grinding wheel which comprises a grinding wheel body, grinding wheel pieces are arranged on the two sides of the grinding wheel body, a reinforcing ring is arranged at one end of each grinding wheel piece in a sleeved mode, heat conduction gaskets are arranged on the inner surfaces of the two grinding wheel pieces, and a plurality of heat dissipation rods are arranged on the inner surfaces of the heat conduction gaskets. The inner surfaces of the plurality of heat dissipation rods are provided with heat dissipation fins, the outer walls of the heat dissipation fins are provided with a plurality of tripods, the heat conduction gaskets, the heat dissipation rods, the heat dissipation fins, the supporting ring and the tripods are arranged, the heat conduction gaskets are made of copper foil materials and have heat conductivity, and the heat dissipation rods and the heat dissipation fins are made of aluminum materials. After heat generated by the grinding wheel body and the grinding wheel pieces is transferred into the heat dissipation rods and the heat dissipation pieces through the heat conduction gaskets, ceramic grinding material falling and binding agent softening caused by the high surface temperature of the grinding wheel body are avoided, heat accumulation can be reduced through heat dissipation, the abrasion speed of the grinding wheel is decreased, and therefore the service life of the grinding wheel is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of ceramic grinding wheel technology, and in particular to a double-jointed ceramic grinding wheel for the inner bore of an automotive gearbox shaft. Background Technology

[0002] Double-layer ceramic grinding wheels for automotive gearbox shaft inner bores are tools specifically designed for precision machining of the inner bores of shaft components during the manufacturing and repair of automotive gearboxes. Gearbox shafts are made of high-hardness materials, and especially after heat treatment, ceramic grinding wheels possess both hardness and wear resistance, effectively meeting the machining requirements of high-hardness materials. This avoids the impact of rapid wear on machining results caused by traditional grinding wheels. Ceramic grinding wheels maintain stable cutting performance during use, reducing machining errors caused by wheel wear, which is crucial for the precision machining of the inner bores of automotive gearbox shafts.

[0003] When ceramic grinding wheels are used to machine the inner bore of automotive gearbox shafts, heat is generated on the surface of the grinding wheel. The temperature is high, and the area of ​​the grinding wheel for air circulation and heat transfer is small, so the heat cannot be dissipated and tends to accumulate on the surface of the grinding wheel. When it comes into contact with the inner bore of the automotive gearbox shaft, it will cause burns and shorten the service life of the grinding wheel. Therefore, it is particularly important to design a double ceramic grinding wheel for the inner bore of automotive gearbox shafts. Utility Model Content

[0004] The purpose of this invention is to provide a double-layer ceramic grinding wheel for the inner bore of an automotive gearbox shaft, in order to solve the problem mentioned in the background art that heat cannot be dissipated and easily accumulates on the surface of the grinding wheel, which then causes burns when it comes into contact with the inner bore of the automotive gearbox shaft.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-column ceramic grinding wheel for the inner bore of an automotive gearbox shaft, comprising a grinding wheel body, grinding wheel blades on both sides of the grinding wheel body, a reinforcing ring fitted at one end of each of the two grinding wheel blades, a thermally conductive washer on the inner surface of each of the two grinding wheel blades, a plurality of heat dissipation rods on the inner surface of the thermally conductive washer, heat dissipation fins on the inner surface of the plurality of heat dissipation rods, a plurality of triangular brackets on the outer wall of the heat dissipation fins, and a support ring on one side of each of the plurality of triangular brackets.

[0006] As a preferred embodiment of this utility model, the two reinforcing rings are respectively fixedly sleeved on one end of the two grinding wheels, and a large amount of ceramic abrasive is bonded to the outer surface of the grinding wheel body.

[0007] As a preferred embodiment of this utility model, each of the two grinding wheels has a plurality of first circular holes on one side, and the plurality of first circular holes are arranged at equal intervals.

[0008] In a preferred embodiment of this invention, the outer wall of the heat sink is in contact with the outer walls of the plurality of heat sinks, and the support ring is located at the center of the heat sink.

[0009] As a preferred embodiment of this utility model, a plurality of second circular holes are provided on one side of the heat sink.

[0010] As a preferred embodiment of this utility model, one side of each of the two reinforcing rings is fixedly connected to both sides of the grinding wheel body, and the diameter of the thermally conductive gasket is smaller than the diameter of the two grinding wheel discs.

[0011] As a preferred embodiment of this invention, the two reinforcing rings are positioned correspondingly.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model relates to a double-column ceramic grinding wheel for the inner bore of an automotive gearbox shaft. It incorporates a thermally conductive washer, a heat sink, a heat fin, a support ring, and a triangular bracket. The thermally conductive washer is made of copper foil and is thermally conductive. The heat sink and heat fin are both made of aluminum. The thermally conductive washer transfers the heat generated by the grinding wheel body and grinding disc to the interior of the heat sink and heat fin. The heat sink absorbs the heat and distributes it to the external environment. Airflow carries away the heat from the surface of the heat fin, thus preventing the ceramic abrasive from falling off and the binder from softening due to high surface temperature of the grinding wheel body. Through heat dissipation, heat accumulation is reduced, the wear rate of the grinding wheel is decreased, and the service life of the grinding wheel is extended.

[0014] 2. This utility model relates to a double-circular ceramic grinding wheel for the inner bore of an automotive gearbox shaft. By setting up a grinding wheel, a first circular hole, a reinforcing ring, and a second circular hole, the two grinding wheels are used in combination, so that the grinding wheel body is in a double-circular state. The two grinding wheels can act on two surfaces of the workpiece simultaneously, improving production efficiency. Both the first and second circular holes can increase the air circulation and heat transfer area, which helps to dissipate heat, thereby reducing the temperature of the grinding wheel body surface and preventing the automotive gearbox from burning. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a partial exploded view of the present invention.

[0019] In the diagram: 1. Grinding wheel body; 2. Grinding wheel disc; 3. First circular hole; 4. Reinforcing ring; 5. Ceramic abrasive; 10. Thermal pad; 11. Heat sink; 12. Heat sink fin; 13. Support ring; 14. Tripod; 15. Second circular hole. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution for a double-row ceramic grinding wheel for the inner bore of an automotive gearbox shaft:

[0022] Example 1:

[0023] like Figure 1-3 As shown, the double-column ceramic grinding wheel for the inner bore of an automotive gearbox shaft includes a grinding wheel body 1. Grinding wheel discs 2 are provided on both sides of the grinding wheel body 1. A reinforcing ring 4 is fitted at one end of each grinding wheel disc 2. A thermally conductive gasket 10 is provided on the inner surface of the two grinding wheel discs 2. Multiple heat dissipation rods 11 are provided on the inner surface of the thermally conductive gaskets 10. Heat dissipation fins 12 are provided on the inner surface of the multiple heat dissipation rods 11. Multiple triangular brackets 14 are provided on the outer wall of the heat dissipation fins 12. A support ring 13 is provided on one side of the multiple triangular brackets 14. The heat dissipation fins 12 absorb heat and distribute it to the external environment. The heat on the surface of the heat dissipation fins 12 is carried away by airflow, thereby preventing the ceramic abrasive 5 from falling off and the binder from softening due to high surface temperature of the grinding wheel body 1. Through heat dissipation, heat accumulation can be reduced, the wear rate of the grinding wheel can be reduced, and the service life of the grinding wheel can be extended.

[0024] Example 2:

[0025] Based on Example 1, such as Figure 1 and Figure 4 As shown, the outer wall of the heat sink 12 is in contact with the outer wall of the multiple heat sinks 11. The support ring 13 is located at the center of the heat sink 12. One side of each of the two reinforcing rings 4 is fixedly connected to both sides of the grinding wheel body 1. The diameter of the thermally conductive pad 10 is smaller than the diameter of the two grinding wheels 2. This utility model of a double-linked ceramic grinding wheel for the inner hole of an automotive gearbox shaft, by setting the grinding wheel 2, the first circular hole 3, the reinforcing ring 4 and the second circular hole 15, the two grinding wheels 2 are used in combination, so that the grinding wheel body 1 is in a double-linked state. The two grinding wheels 2 can act on the two surfaces of the workpiece at the same time, which improves production efficiency.

[0026] Working Principle: The double-layer ceramic grinding wheel for automotive gearbox shaft inner bores is a tool specifically designed for precision machining of shaft components' inner bores during automotive gearbox manufacturing and repair. Gearbox shafts are made of high-hardness materials, especially after heat treatment. The ceramic grinding wheel possesses both hardness and wear resistance, effectively meeting the machining requirements of high-hardness materials and avoiding the impact of rapid wear on machining results caused by traditional grinding wheels. The ceramic grinding wheel maintains stable cutting performance during use, reducing machining errors caused by wheel wear. This is crucial for the precision machining of automotive gearbox shaft inner bores. During machining of the automotive gearbox shaft inner bore, the grinding wheel surface generates heat. Due to the small surface area for air circulation and heat transfer, heat cannot dissipate and easily accumulates on the grinding wheel surface. This heat can then burn the inner bore of the automotive gearbox shaft upon contact, shortening the grinding wheel's lifespan. Therefore, the design of the double-layer ceramic grinding wheel for automotive gearbox shaft inner bores is particularly important. The thermally conductive gasket 10 is made of copper foil, which is thermally conductive. The heat sink 11 and heat sink 12 are both made of aluminum. The thermally conductive gasket 10... The heat generated by the wheel body 1 and the grinding wheel 2 is transferred to the interior of the heat sink 11 and the heat sink 12. The heat sink 12 absorbs the heat and distributes it to the external environment. The heat on the surface of the heat sink 12 is carried away by the air flow, thereby preventing the ceramic abrasive 5 from falling off and the binder from softening due to the high surface temperature of the grinding wheel body 1. Through heat dissipation, heat accumulation can be reduced, the wear rate of the grinding wheel can be reduced, and the service life of the grinding wheel can be extended. The two grinding wheels 2 are used in combination, so that the grinding wheel body 1 is in a double state. The two grinding wheels 2 can act on the two surfaces of the workpiece at the same time, which improves production efficiency. The first round hole 3 and the second round hole 15 can both increase the air flow and heat transfer area, which helps to dissipate heat, thereby reducing the surface temperature of the grinding wheel body 1 and preventing the burning of the car gearbox. The thermally conductive gasket 10 is connected to the heat sink 12 by multiple heat sinks 11, which increases the heat transfer area. The heat sink 12 is connected to the support ring 13 by multiple tripods 14, which ensures the firmness between the heat sink 12 and the support ring 13.

[0027] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; 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 or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-column ceramic grinding wheel for the inner bore of an automotive gearbox shaft, comprising a grinding wheel body (1), characterized in that: Grinding wheel discs (2) are provided on both sides of the grinding wheel body (1). A reinforcing ring (4) is fitted on one end of each of the two grinding wheel discs (2). A thermally conductive gasket (10) is provided on the inner surface of the two grinding wheel discs (2). A plurality of heat dissipation rods (11) are provided on the inner surface of the thermally conductive gaskets (10). A heat dissipation fin (12) is provided on the inner surface of the plurality of heat dissipation rods (11). A plurality of tripods (14) are provided on the outer wall of the heat dissipation fin (12). A support ring (13) is provided on one side of the plurality of tripods (14).

2. The double-column ceramic grinding wheel for the inner bore of the automotive gearbox shaft according to claim 1, characterized in that: The two reinforcing rings (4) are fixedly sleeved on one end of the two grinding wheels (2), and a large amount of ceramic abrasive (5) is bonded to the outer surface of the grinding wheel body (1).

3. The double-layer ceramic grinding wheel for the inner bore of the automotive gearbox shaft according to claim 2, characterized in that: Each of the two grinding wheels (2) has a plurality of first circular holes (3) on one side, and the plurality of first circular holes (3) are arranged at equal intervals.

4. The double-layer ceramic grinding wheel for the inner bore of the automotive gearbox shaft according to claim 1, characterized in that: The outer wall of the heat sink (12) is in contact with the outer wall of the plurality of heat sinks (11), and the support ring (13) is located at the center of the heat sink (12).

5. The double-column ceramic grinding wheel for the inner bore of the automotive gearbox shaft according to claim 4, characterized in that: The heat sink (12) has multiple second circular holes (15) on one side.

6. The double-layer ceramic grinding wheel for the inner bore of the automotive gearbox shaft according to claim 1, characterized in that: One side of each of the two reinforcing rings (4) is fixedly connected to both sides of the grinding wheel body (1), and the diameter of the heat-conducting gasket (10) is smaller than the diameter of the two grinding wheel discs (2).

7. The double-layer ceramic grinding wheel for the inner bore of the automotive gearbox shaft according to claim 6, characterized in that: The two reinforcing rings (4) are positioned correspondingly.

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