Durable detachable damping gear

Abstract

The utility model relates to the technical field of gears, in particular to a durable detachable vibration reduction gear which is simple in structure and capable of absorbing vibration and comprises a gear body, a gear shaft hole formed in the center of the gear body and a key groove formed in the gear shaft hole. A plurality of gear teeth are arranged on the gear tooth ring, and a vibration reduction supporting device which is matched with the connecting rod and used for reducing vibration is arranged between the gear body and the gear tooth ring.

Description

Technical Field

[0001] The utility model relates to the technical field of gears, in particular to a durable and detachable vibration-damping gear. Background Art

[0002] Gears are important transmission mechanisms, which have the characteristics of a wide power transmission range, high transmission efficiency, and the ability to arbitrarily transmit motion and power between two shafts. Existing gears generally include: a gear body, a gear shaft hole arranged in the gear body, and a number of gear teeth evenly arranged on the outside of the gear body. However, the gear body and the gear teeth are often formed in one piece, and when subjected to vibration, they can only absorb it by themselves, which easily leads to wear and damage due to vibration during the gear transmission process. Utility Model Content

[0003] Therefore, in view of the above problems, the utility model proposes a durable detachable vibration-damping gear with a simple structure and capable of absorbing vibration.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to provide a durable and detachable vibration-damping gear, including a gear body, an axle hole opened in the center of the gear body, and a keyway opened in the axle hole. The gear body is connected to a gear ring through a plurality of connecting rods, and a plurality of gear teeth are arranged on the gear ring. A vibration-damping support device is arranged between the gear body and the gear ring to cooperate with the connecting rod for reducing vibration.

[0005] A further improvement is that the vibration reduction support device includes: a clamping protrusion arranged between the gear body, the gear ring and the connecting rod for enhancing the strength of the gear, and an energy absorbing block arranged between the gear body, the gear ring and the connecting rod through the clamping protrusion.

[0006] A further improvement is that the energy absorbing block includes: a first supporting energy absorbing block, a second supporting energy absorbing block symmetrically arranged on the first supporting energy absorbing block, and engaging grooves respectively opened on the first supporting energy absorbing block and the second supporting energy absorbing block and located at the connection between the two, the engaging grooves match and engage with the engaging protrusions, and the first supporting energy absorbing block is adhesively connected to the second supporting energy absorbing block.

[0007] A further improvement is that: the first supporting energy absorbing block is a rubber block, and the second supporting energy absorbing block is a rubber block.

[0008] A further improvement is that an enhanced energy absorbing device for further enhancing the energy absorbing capacity is provided between the first supporting energy absorbing block and the second supporting energy absorbing block.

[0009] A further improvement is that the enhanced energy absorption device includes: a plurality of first mounting holes opened on the first supporting energy absorption block, a plurality of second mounting holes opened on the second supporting energy absorption block and matching the first mounting holes, and the first mounting holes and the second mounting holes are provided with EVA energy absorption blocks.

[0010] A further improvement is that a gear vibration reduction device is provided on the gear teeth for reducing the vibration generated when the gears are meshed.

[0011] A further improvement is that the gear tooth vibration reduction device comprises: a clamping groove formed on the gear tooth, and an energy absorbing sleeve sleeved in the clamping groove and having an outer dimension close to that of the gear tooth.

[0012] A further improvement is that the energy absorbing sleeve is a rubber sleeve.

[0013] The advantages and beneficial effects of the utility model are:

[0014] The structure is simple, and the gear body and the gear ring are connected by a support rod, which reduces the vibration transmission medium and greatly enhances the vibration reduction effect of the gear. A vibration reduction support device for further absorbing vibration is also provided between the gear body and the gear ring, which can not only absorb vibration and further enhance the vibration reduction effect, but also enhance the supporting force of the support rod, the gear body and the gear ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view schematic diagram of a durable and detachable vibration-reducing gear of the utility model;

[0016] Figure 2 It is a front view schematic diagram of a durable detachable vibration-damping gear of the utility model without the supporting energy-absorbing block and the energy-absorbing sleeve installed;

[0017] Figure 3 This is a schematic diagram of a first supporting energy-absorbing block of a durable and detachable vibration-damping gear of the utility model;

[0018] Figure 4 This is an enlarged cross-sectional schematic diagram of part A of a durable and detachable vibration-damping tooth of the utility model;

[0019] In the figure: 1. gear body; 2. axle hole; 3. keyway; 4. gear ring; 5. gear teeth; 6. snap-fit ​​protrusion; 7. first supporting energy absorbing block; 8. snap-fit ​​groove; 9. first mounting hole; 10. EVA energy absorbing block; 11. snap-fit ​​groove; 12. energy absorbing sleeve. DETAILED DESCRIPTION

[0020] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] like Figure 1-Figure 4 As shown, a durable and detachable vibration-damping gear comprises a gear body 1, an axle hole 2 opened in the center of the gear body 1, and a keyway 3 opened in the axle hole 2. The gear body 1 is connected to a gear ring 4 through a plurality of connecting rods, and a plurality of gear teeth 5 are arranged on the gear ring 4. A vibration-damping support device is arranged between the gear body 1 and the gear ring 4 to cooperate with the connecting rod for reducing vibration.

[0022] In order to absorb vibration and provide a certain supporting force to prevent the gear from being damaged or cracked, the vibration-damping support device includes: a snap-fit ​​protrusion 6 arranged between the gear body 1, the gear ring 4 and the connecting rod for enhancing the strength of the gear, and an energy-absorbing block arranged between the gear body 1, the gear ring 4 and the connecting rod through the snap-fit ​​protrusion 6.

[0023] In order to facilitate the installation of the energy absorbing block, the energy absorbing block includes: a first supporting energy absorbing block 7, a second supporting energy absorbing block (not shown in the figure) symmetrically arranged on the first supporting energy absorbing block 7, and a snap-fit ​​groove 8 respectively opened on the first supporting energy absorbing block 7 and the second supporting energy absorbing block and located at the connection between the two, the snap-fit ​​groove 8 matches and snaps with the snap-fit ​​protrusion 6, and the first supporting energy absorbing block 7 is adhesively connected to the second supporting energy absorbing block.

[0024] In order to further improve the vibration reduction capability, an enhanced energy absorption device for further enhancing the energy absorption capability is provided between the first supporting energy absorption block 7 and the second supporting energy absorption block. The enhanced energy absorption device comprises: a plurality of first mounting holes 9 provided on the first supporting energy absorption block 7, and a plurality of second mounting holes (not shown in the figure) provided on the second supporting energy absorption block and matching the first mounting holes 9. The first mounting holes 9 and the second mounting holes are provided with EVA energy absorption blocks 10. The energy absorption and vibration reduction effect of EVA is worse than that of rubber, but its texture is soft, not wear-resistant, and its support is not as good as that of rubber. Therefore, placing it inside the energy absorption block can not only protect the EVA energy absorption block 10 but also improve the vibration reduction and energy absorption effect of the energy absorption block.

[0025] In order to reduce the impact on the gear and thus reduce the transmission of vibration, the gear 5 is provided with a gear 5 vibration reduction device for reducing the vibration generated when the gears are meshed. The gear 5 vibration reduction device comprises: a snap-fit ​​groove 11 opened on the gear 5, and an energy absorbing sleeve 12 sleeved in the snap-fit ​​groove 11 and having an external dimension close to that of the gear 5. The energy absorbing sleeve 12 is a rubber sleeve.

[0026] Working principle: When in use, install the EVA energy absorbing block 10 in the first supporting energy absorbing block 7 and the second supporting energy absorbing block, then apply glue to the connection between the two, align the snap-fit ​​protrusion 6, and then connect the first supporting energy absorbing block 7 and the second supporting energy absorbing block together to complete the installation of the energy absorbing block. Then, the energy absorbing sleeve 12 can be installed in the snap-fit ​​groove 11 by using the elasticity of the rubber.

[0027] When the gear meshes with other gears and rotates, the gear teeth 5 will be hit, thereby generating vibration. At this time, the energy-absorbing sleeve 12 will first absorb a portion of the vibration, and the remaining vibration energy will continue to be transmitted inward, and will be partially absorbed by the energy-absorbing block. Moreover, since the energy-absorbing block is also provided with an EVA energy-absorbing block 10 with a better energy-absorbing effect, the absorption effect of the energy-absorbing block can be further enhanced, thereby enhancing the vibration-damping property of the energy-absorbing block. After multiple absorption and vibration reduction, the vibration of the gear can be greatly reduced, thereby alleviating the impact of the vibration.

[0028] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A durable and detachable vibration-damping gear, comprising a gear body, an axle hole opened in the center of the gear body, and a keyway opened in the axle hole, characterized in that: The gear body is connected to a gear ring through a plurality of connecting rods, the gear ring is provided with a plurality of gear teeth, and a vibration reduction support device is provided between the gear body and the gear ring to cooperate with the connecting rods for reducing vibration.

2. A durable detachable vibration-damping gear according to claim 1, characterized in that: The vibration reduction support device comprises: a clamping protrusion arranged between the gear body, the gear ring and the connecting rod for enhancing the strength of the gear, and an energy absorbing block arranged between the gear body, the gear ring and the connecting rod through the clamping protrusion.

3. A durable detachable vibration-damping gear according to claim 2, characterized in that: The energy absorbing block includes: a first supporting energy absorbing block, a second supporting energy absorbing block symmetrically arranged on the first supporting energy absorbing block, and engaging grooves respectively opened on the first supporting energy absorbing block and the second supporting energy absorbing block and located at the connection between the two, the engaging grooves match and engage with the engaging protrusions, and the first supporting energy absorbing block is adhesively connected to the second supporting energy absorbing block.

4. A durable detachable vibration-damping gear according to claim 3, characterized in that: The first supporting energy absorbing block is a rubber block, and the second supporting energy absorbing block is a rubber block.

5. A durable detachable vibration-damping gear according to claim 4, characterized in that: An enhanced energy absorbing device for further enhancing the energy absorbing capacity is also provided between the first supporting energy absorbing block and the second supporting energy absorbing block.

6. A durable detachable vibration-damping gear according to claim 5, characterized in that: The enhanced energy absorption device includes: a plurality of first mounting holes opened on the first supporting energy absorption block, and a plurality of second mounting holes opened on the second supporting energy absorption block and matching with the first mounting holes, wherein the first mounting holes and the second mounting holes are provided with EVA energy absorption blocks.

7. A durable detachable vibration-damping gear according to claim 1, characterized in that: The gear teeth are provided with gear tooth vibration reduction devices for reducing vibrations generated when the gears are meshed.

8. A durable detachable vibration-damping gear according to claim 7, characterized in that: The gear tooth vibration reduction device comprises: a clamping groove formed on the gear tooth, and an energy absorbing sleeve sleeved in the clamping groove and having an outer dimension close to that of the gear tooth.

9. A durable detachable vibration-damping gear according to claim 8, characterized in that: The energy absorbing sleeve is a rubber sleeve.

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