Gear grinding device

Abstract

The utility model discloses a gear grinding device which comprises at least one first gear, at least one second gear, a motor and a supporting frame, the first gear is connected with the motor, the second gear is movably arranged on the supporting frame, the tooth surface of the first gear is meshed with the tooth surface of the second gear, and the meshed portion is coated with grinding materials. When the first gear serves as a to-be-ground component and the second gear serves as a grinding matching component, the tooth surface hardness of the second gear is designed to be larger than that of the first gear, and when the second gear serves as the to-be-ground component and the first gear serves as the grinding matching component, the tooth surface hardness of the first gear is designed to be larger than that of the second gear. According to the gear grinding machine, the problem that the tooth surface of a gear needing to be ground is rough is solved, the problem that noise is prone to being generated when the gear is used is further solved, a special gear grinding machine is not needed for grinding, and cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a gear grinding device. Background Art

[0002] The noise problem of a well-designed gearbox mainly comes from processing and assembly. When the gear surface texture is inconsistent or there are some microscopic protrusions on the tooth surface, noise may be caused.

[0003] Many gears used in gearboxes require heat treatment. The surface finishing of heat-treated gears mainly includes fine skiving and grinding. Gear grinding equipment is relatively expensive. Many manufacturers use fine skiving, which is to use a hob to finish the tooth surface. Due to the high hardness of the tooth surface after heat treatment, the hob wears quickly, which easily leads to large tooth surface roughness and some strip-shaped protrusions on the surface. If the application requirements are high, it is necessary to perform tooth surface finishing through grinding. However, there are only special grinding machines for grinding bevel gears on the market, and there are no grinding machines for ordinary gears. If a special grinding machine for grinding bevel gears is used to grind ordinary gears, the cost is relatively high. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a gear grinding device, aiming to reduce the grinding cost while ensuring the grinding effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a gear grinding device, comprising at least one first gear, at least one second gear, a motor and a support frame, wherein the first gear is connected to the motor, the second gear is movably arranged on the support frame, the tooth surfaces of the first gear and the second gear are meshed with each other, and the meshing parts are coated with abrasive materials; when the first gear is used as a component to be ground and the second gear is used as a grinding matching component, the tooth surface hardness of the second gear is designed to be greater than the tooth surface hardness of the first gear, and when the second gear is used as a component to be ground and the first gear is used as a grinding matching component, the tooth surface hardness of the first gear is designed to be greater than the tooth surface hardness of the second gear.

[0007] Furthermore, there is one first gear and there are multiple second gears, the multiple second gears are arranged around the first gear, the tooth surface of the first gear is meshed with the tooth surfaces of the multiple second gears, and the first gear rotates under the drive of the motor to drive the multiple second gears to rotate.

[0008] Further, there is one first gear, and there are three second gears, the three second gears surround the first gear, and the three second gears are arranged in a triangle.

[0009] Furthermore, the support frame includes a mounting plate, the mounting plate is provided with at least one gear mounting shaft, and the second gear is movably connected to the gear mounting shaft.

[0010] Furthermore, the support frame also includes a clamping assembly, which includes a fixed seat, a movable block and a movable connecting rod, the movable connecting rod is movably arranged on the fixed seat, one end of the movable connecting rod is connected to the movable block, and a clamping space is provided between the movable block and the fixed seat; the mounting plate is placed in the clamping space, and the position of the movable block is adjusted so that it abuts against the mounting plate, so that the mounting plate is clamped and fixed in the clamping space.

[0011] Furthermore, the fixing seat is provided with a limiting portion, the limiting portion is arranged opposite to the movable block, and the space between the limiting portion and the movable block constitutes the clamping space.

[0012] Furthermore, the fixing seat is also provided with a supporting portion, the supporting portion is provided with a through hole, the movable connecting rod is penetrated through the through hole, and is threadedly connected to the through hole.

[0013] Further, the movable block is arranged between the limiting portion and the supporting portion, and the movable block moves between the limiting portion and the supporting portion under the action of the movable connecting rod.

[0014] Furthermore, the fixing seat is also provided with a guide groove, and the bottom of the movable block is provided with an embedding portion embedded in the guide groove.

[0015] Furthermore, the fixing seat is also provided with a cushion block, the cushion block is located between the limiting portion and the movable block, and the mounting plate is arranged on the top of the cushion block.

[0016] Compared with the prior art, the utility model has the following beneficial effects: a gear grinding device, comprising at least one first gear, at least one second gear, a motor and a support frame, the first gear is connected to the motor, the second gear is movably arranged on the support frame, the tooth surfaces of the first gear and the second gear are meshed with each other, and the meshing parts are coated with abrasive materials; when the first gear is used as a component to be ground and the second gear is used as a grinding matching component, the tooth surface hardness of the second gear is designed to be greater than the tooth surface hardness of the first gear, and when the second gear is used as a component to be ground and the first gear is used as a grinding matching component, the tooth surface hardness of the first gear is designed to be greater than the tooth surface hardness of the second gear. Through the cooperation of the first gear and the second gear, depending on whether the first gear or the second gear is to be ground, the tooth surface hardness of the gear to be ground is designed to be lower than the tooth surface hardness of the gear to be ground. During grinding, since the tooth surface of the gear to be ground is relatively soft, the grinding material will first remove a small amount of metal from the tooth surface of the gear to be ground, so that the tooth surface of the gear to be ground obtains the desired ideal contact mode, and at the same time, the problem of rough tooth surface of the gear to be ground is also improved, thereby reducing the problem of noise generated when the gear is used, and no special gear grinding machine is required for grinding, which greatly reduces the cost.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An exploded view of a gear grinding device provided in a specific embodiment of the utility model;

[0020] Figure 2 An assembly diagram of a gear grinding device provided for a specific embodiment of the utility model;

[0021] Figure 3 An exploded view of a partial structure of a gear grinding device provided in a specific embodiment of the utility model;

[0022] Figure 4 The present invention is a schematic structural diagram of a support frame in a gear grinding device provided in a specific embodiment of the present invention.

[0023] Reference numerals

[0024] 1. First gear;

[0025] 2. Second gear;

[0026] 3. Motor;

[0027] 4. Support frame; 41. Mounting plate; 411. Gear mounting shaft; 42. Clamping assembly; 421. Fixed seat; 4211. Limiting portion; 4212. Supporting portion; 42121. Through hole; 4213. Pad; 4214. Guide groove; 422. Movable block; 4221. Embedded portion; 423. Movable connecting rod; 424. Clamping space. DETAILED DESCRIPTION

[0028] The following will be combined with the specific embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be understood that when used in this specification and claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0031] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] like Figure 1-Figure 4As shown, an embodiment of the utility model provides a gear grinding device, including at least one first gear 1, at least one second gear 2, a motor 3 and a support frame 4, wherein the first gear 1 is connected to the motor 3, the second gear 2 is movably arranged on the support frame 4, the tooth surfaces of the first gear 1 and the second gear 2 are meshed with each other, and the meshing parts are coated with abrasive materials. The first gear 1 is connected to the motor 3 as the main driving gear, the second gear 2 is movably arranged on the support frame 4, meshed with the first gear 1, and when the first gear 1 rotates under the drive of the motor 3, the second gear 2 rotates accordingly. When the first gear 1 is used as a part to be ground and the second gear 2 is used as a grinding matching part, the tooth surface hardness of the second gear 2 is designed to be greater than the tooth surface hardness of the first gear 1, and when the second gear 2 is used as a part to be ground and the first gear 1 is used as a grinding matching part, the tooth surface hardness of the first gear 1 is designed to be greater than the tooth surface hardness of the second gear 2.

[0033] When the first gear 1 is used as a part to be ground, the hardness of its tooth surface is designed to be lower than that of the second gear 2. In this way, when the first gear 1 is meshed with the second gear 2 under the drive of the motor 3, since the tooth surface of the second gear 2 is harder, the grinding material (such as abrasive) will preferentially remove a small amount of metal on the tooth surface of the first gear 1, thereby improving its surface roughness. Conversely, when the second gear 2 is used as a part to be ground, the hardness of its tooth surface is designed to be lower than that of the first gear 1. Similarly, through the meshing and the action of the grinding material, the tooth surface of the second gear 2 will also be improved.

[0034] Through the cooperation of the first gear 1 and the second gear 2, the first gear 1 or the second gear 2 is ground according to the need, and the tooth surface hardness of the gear to be ground is designed to be lower than the tooth surface hardness of the gear to be ground. During grinding, since the tooth surface of the gear to be ground is relatively soft, the grinding material will first remove a small amount of metal from the tooth surface of the gear to be ground, so that the tooth surface of the gear to be ground obtains the desired ideal contact mode, and at the same time, the problem of rough tooth surface of the gear to be ground is also improved, thereby reducing the problem of noise generated when the gear is used, and no special gear grinding machine is required for grinding, which greatly reduces the cost.

[0035] The first gear 1 may be directly connected to the output shaft of the motor 3 or indirectly connected. When indirectly connected, the first gear 1 and the output shaft of the motor 3 are connected via a transmission component.

[0036] Abrasives play a key role in gear grinding devices. They help remove trace metal from the gear surface, thereby improving the surface roughness and precision of the gear. There are many types of abrasives, which can be selected based on factors such as the material of the gear, the required grinding effect, and cost. Commonly selected abrasives can be abrasive pastes, abrasive liquids, etc.

[0037] In one embodiment, there is one first gear 1 and multiple second gears 2, which are arranged around the first gear 1, and the tooth surface of the first gear 1 is meshed with the tooth surfaces of the multiple second gears 2. The first gear 1 rotates under the drive of the motor 3 to drive the multiple second gears 2 to rotate. With such a design, one first gear 1 and multiple second gears 2 can disperse the load during the grinding process, reduce the pressure on a single gear, and help extend the service life of the gears.

[0038] In this embodiment, there is one first gear 1 and three second gears 2 . The three second gears 2 surround the first gear 1 and are arranged in a triangle.

[0039] like Figure 1-Figure 3 As shown, the support frame 4 includes a mounting plate 41, on which at least one gear mounting shaft 411 is provided, and the second gear 2 is movably connected to the gear mounting shaft 411. The design number of the gear mounting shafts 411 is determined according to the number of the second gears 2. In this embodiment, three gear mounting shafts 411 are fixed to the upper surface of the mounting plate 41, and each gear mounting shaft 411 is provided with a second gear 2. Such a design can ensure the stable installation of the second gear 2, help maintain the correct meshing relationship between the gears, and reduce the grinding error caused by structural instability.

[0040] like Figure 1-Figure 4 As shown, the support frame 4 also includes a clamping assembly 42, which includes a fixed seat 421, a movable block 422 and a movable connecting rod 423. The movable connecting rod 423 is movably arranged on the fixed seat 421, one end of the movable connecting rod 423 is connected to the movable block 422, and a clamping space 424 is provided between the movable block 422 and the fixed seat 421; the mounting plate 41 is placed in the clamping space 424, and the position of the movable block 422 is adjusted to make it abut against the mounting plate 41, so that the mounting plate 41 is clamped and fixed in the clamping space 424.

[0041] Specifically, the fixed seat 421 is the base part of the clamping assembly 42, which provides a fixed reference point for the movable block 422 and the movable connecting rod 423, ensuring the overall stability of the clamping assembly 42. The movable block 422 is the movable part in the clamping assembly 42, which can move along a specific path under the guidance of the fixed seat 421. The movable connecting rod 423 connects the movable block 422 and the fixed seat 421, allowing the movable block 422 to move relative to the fixed seat 421. The design of the movable connecting rod 423 needs to ensure that it can provide sufficient force during the adjustment process while maintaining the rigidity and stability of the structure. The clamping space 424 is the area formed between the movable block 422 and the fixed seat 421, which is used to accommodate the mounting plate 41. By adjusting the position of the movable block 422, the size of the clamping space 424 can be changed, thereby clamping or releasing the mounting plate 41.

[0042] When the mounting plate 41 is placed in the clamping space 424, the movable block 422 is moved toward the mounting plate 41 by adjusting the movable link 423 until it is in close contact with the mounting plate 41. The force generated by this contact firmly fixes the mounting plate 41 in the clamping space 424 to prevent movement or vibration during the grinding process.

[0043] The clamping assembly 42 can adapt to mounting plates 41 of different sizes or shapes, and the stability of the mounting plate 41 during the grinding process can be ensured by accurately controlling the clamping force, thereby reducing errors. In addition, the operator can easily clamp and release the mounting plate 41, thereby improving work efficiency.

[0044] like Figure 4 As shown, the fixed seat 421 is provided with a limiting portion 4211, and the limiting portion 4211 is arranged relative to the movable block 422, and the space between the limiting portion 4211 and the movable block 422 constitutes a clamping space 424. The limiting portion 4211 is a structure on the fixed seat 421, which can be a part of the fixed seat 421 or a component independent of the fixed seat 421. Its main function is to limit the moving range of the movable block 422. The limiting portion 4211 is designed to be a convex shape to ensure that the movable block 422 does not exceed the predetermined moving range during the clamping process. Such a design ensures that the moving range of the movable block 422 is precisely controlled, thereby ensuring the accuracy and consistency of the clamping force. At the same time, through the cooperation of the limiting portion 4211 and the movable block 422, the stability of the mounting plate 41 during the clamping process can be ensured, and the grinding error can be reduced.

[0045] like Figure 4 As shown, the fixed seat 421 is also provided with a support portion 4212, and the support portion 4212 is provided with a through hole 42121. The movable link 423 is penetrated through the through hole 42121 and is threadedly connected with the through hole 42121. The through hole 42121 is a hole on the support portion 4212, and its diameter and shape are designed to match the movable link 423. The through hole 42121 allows the movable link 423 to pass through, and the movable link 423 is used to adjust the position of the movable block 422 through a threaded connection. The threaded connection between the movable link 423 and the through hole 42121 allows the operator to adjust the position of the movable block 422 by rotating the movable link 423. This connection method provides precise adjustment capabilities and ensures the stability of the movable link 423 during operation. The threaded connection allows the operator to adjust the clamping force through a simple rotation action, and the operation is simple and quick.

[0046] like Figure 4 As shown, the movable block 422 is arranged between the limiting portion 4211 and the supporting portion 4212 , and the movable block 422 moves between the limiting portion 4211 and the supporting portion 4212 under the action of the movable connecting rod 423 .

[0047] The movement of the movable block 422 between the limit portion 4211 and the support portion 4212 is precisely controlled, ensuring the accuracy and consistency of the clamping force. The dual constraints of the limit portion 4211 and the support portion 4212 ensure the stability of the movable block 422 during movement, reducing errors caused by external forces or vibrations. This stability helps to maintain the precise position of the mounting plate 41 during the grinding process, thereby improving the grinding quality. The moving path of the movable block 422 is limited between the limit portion 4211 and the support portion 4212, so that the operator can intuitively understand and control the clamping process. This design simplifies the operating steps and improves work efficiency.

[0048] like Figure 4 As shown, the fixing seat 421 is further provided with a guide groove 4214 , and the bottom of the movable block 422 is provided with an embedding portion 4221 embedded in the guide groove 4214 .

[0049] The guide groove 4214 provides a precise moving path for the movable block 422. The cooperation between the embedded portion 4221 and the guide groove 4214 ensures the linearity and accuracy of the movable block 422 during movement, reduces deviation and swing, and thus improves the accuracy of the clamping process. In addition, the guide groove 4214 prevents the unexpected movement of the movable block 422, thereby avoiding the problem of damage to the mounting plate 41 caused by excessive clamping force or wrong direction.

[0050] like Figure 4 As shown, the fixed seat 421 is also provided with a pad 4213, and the pad 4213 is located between the limiting portion 4211 and the movable block 422, and the mounting plate 41 is arranged on the top of the pad 4213. The pad 4213 provides a flat and stable surface for the mounting plate 41 to support the mounting plate 41. The pad 4213 is usually made of wear-resistant material to ensure stability and durability for long-term use. The pad 4213 can be movably arranged or fixedly arranged between the limiting portion 4211 and the movable block 422. The pad 4213 is located between the limiting portion 4211 and the movable block 422, which helps to more accurately control the distribution and size of the clamping force and ensure that the mounting plate 41 maintains the correct position and posture during the grinding process.

[0051] Of course, the design of the pad 4213 can be adjusted according to different sizes and shapes of the mounting plate 41 , thereby improving the adaptability and flexibility of the clamping assembly 42 .

[0052] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A gear grinding device, characterized in that: It includes at least one first gear, at least one second gear, a motor and a support frame, the first gear is connected to the motor, the second gear is movably arranged on the support frame, the tooth surfaces of the first gear and the second gear are meshed with each other, and the meshing parts are coated with abrasive materials; when the first gear is used as a part to be ground and the second gear is used as a grinding matching part, the tooth surface hardness of the second gear is designed to be greater than the tooth surface hardness of the first gear, and when the second gear is used as a part to be ground and the first gear is used as a grinding matching part, the tooth surface hardness of the first gear is designed to be greater than the tooth surface hardness of the second gear.

2. A gear grinding device according to claim 1, characterized in that: There is one first gear and there are multiple second gears, the multiple second gears are arranged around the first gear, the tooth surface of the first gear is meshed with the tooth surfaces of the multiple second gears, and the first gear rotates under the drive of the motor to drive the multiple second gears to rotate.

3. A gear grinding device according to claim 2, characterized in that: There is one first gear and three second gears. The three second gears surround the first gear and are arranged in a triangle.

4. A gear grinding device according to claim 1, characterized in that: The support frame includes a mounting plate, the mounting plate is provided with at least one gear mounting shaft, and the second gear is movably connected to the gear mounting shaft.

5. A gear grinding device according to claim 4, characterized in that: The support frame also includes a clamping assembly, which includes a fixed seat, a movable block and a movable connecting rod. The movable connecting rod is movably arranged on the fixed seat, one end of the movable connecting rod is connected to the movable block, and a clamping space is provided between the movable block and the fixed seat; the mounting plate is placed in the clamping space, and the position of the movable block is adjusted to make it abut against the mounting plate, so that the mounting plate is clamped and fixed in the clamping space.

6. A gear grinding device according to claim 5, characterized in that: The fixing seat is provided with a limiting portion, the limiting portion is arranged opposite to the movable block, and the space between the limiting portion and the movable block constitutes the clamping space.

7. A gear grinding device according to claim 6, characterized in that: The fixing seat is also provided with a supporting portion, the supporting portion is provided with a through hole, the movable connecting rod is penetrated through the through hole and is threadedly connected with the through hole.

8. A gear grinding device according to claim 7, characterized in that: The movable block is arranged between the limiting portion and the supporting portion, and the movable block moves between the limiting portion and the supporting portion under the action of the movable connecting rod.

9. A gear grinding device according to claim 8, characterized in that: The fixing seat is also provided with a guide groove, and the bottom of the movable block is provided with an embedding portion embedded in the guide groove.

10. A gear grinding device according to claim 6, characterized in that: The fixing seat is further provided with a cushion block, the cushion block is located between the limiting portion and the movable block, and the mounting plate is arranged on the top of the cushion block.

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