Signal gear

Abstract

The utility model discloses a signal gear. The signal gear has excellent heat dissipation performance, wear resistance, corrosion resistance, operation stability, signal transmission accuracy and stability and the like. The signal gear comprises an outer gear ring and a hub inner disc, the outer gear ring and the hub inner disc are connected and fixed through a connecting supporting block, and a large gap space is formed between the outer gear ring and the hub inner disc, so that on one hand, heat dissipation of the signal gear is facilitated, on the other hand, the weight of the signal gear can be effectively reduced, and rotational inertia is reduced; the response speed is improved, and then the accuracy of signal transmission is improved. The tooth surfaces of the gear teeth of the signal gear are textured to form uniformly distributed groove textures, so that on one hand, stress can be effectively dispersed, abrasion of the surfaces of the gear is reduced, and abrasion resistance of the gear is improved, and on the other hand, the contact state of the surfaces of the gear teeth can be effectively improved, vibration and noise are reduced, and the service life of the signal gear is prolonged. And the accuracy and the stability of signal transmission are improved. The tooth surfaces of the gear teeth of the signal gear are further sprayed with TiN coatings, abrasion of the surfaces of the gear can be further reduced, and the abrasion resistance and the corrosion resistance of the gear are further improved.

Description

Technical Field

[0001] The utility model relates to a gear, in particular to a signal gear. Background Art

[0002] A signal gear is a mechanical component used to transmit signals or monitor rotational motion. It is usually used in conjunction with devices such as sensors to provide information about rotational speed, position, direction, etc. In the field of automotive engines, a signal gear can cooperate with a crankshaft position sensor or a camshaft position sensor, etc., to send engine speed and position information to the vehicle's computer, and the computer controls the fuel injection, ignition timing, and valve timing of the engine based on this.

[0003] Currently, common signal gears are mostly ordinary gears cast from traditional metal materials such as steel or cast iron. Their heat dissipation, wear resistance, corrosion resistance, running stability, accuracy and stability of signal transmission, etc. still need to be improved, and they can no longer meet the requirements of signal gears for current automotive autonomous driving. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a signal gear, which has excellent heat dissipation performance, wear resistance, corrosion resistance, running stability, accuracy and stability of signal transmission, etc.

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

[0006] The utility model provides a signal gear, including an outer gear ring and a hub inner disc. The outer gear ring is evenly provided with teeth, the center of the hub inner disc is provided with a shaft hole, and the outer gear ring and the hub inner disc are connected and fixed through connecting support blocks. The signal gear is integrally formed.

[0007] The utility model designs the signal gear in the form of an outer gear ring and a hub inner disc, and connects and fixes the hub inner disc and the outer gear ring through connecting support blocks. With such a design, there will be a large gap space between the outer gear ring and the hub inner disc. On the one hand, it is convenient for the signal gear to dissipate heat. On the other hand, it can effectively reduce the weight of the signal gear, reduce the moment of inertia, improve the response speed, and thus improve the accuracy of signal transmission. The signal gear is integrally formed, which can effectively ensure the overall structural strength, wear resistance and running stability of the signal gear.

[0008] Furthermore, the signal gear is integrally formed from 20CrMnTi alloy material. Using 20CrMnTi alloy material can effectively improve the strength, wear resistance and corrosion resistance of the signal gear.

[0009] Furthermore, the tooth surface of each tooth of the signal gear is also subjected to texturing treatment, and uniformly distributed groove textures are formed on the tooth surface of the gear teeth. Texturing the tooth surface to form groove textures can, on the one hand, effectively disperse stress, reduce the wear of the gear surface, and improve the wear resistance of the gear. On the other hand, it can also effectively improve the contact state of the tooth surface, reduce vibration and noise, and improve the accuracy and stability of signal transmission.

[0010] Furthermore, a TiN coating is also sprayed on the tooth surface of each tooth of the signal gear. Spraying a TiN coating on the tooth surface can further reduce the wear of the gear surface and further improve the wear resistance and corrosion resistance of the gear.

[0011] The present utility model also provides a signal gear, which includes an external gear ring and a hub. The external gear ring is evenly provided with gear teeth, the inner wall surface of the external gear ring is evenly provided with spline grooves, the bottom of the external gear ring extends inwards to be provided with a mounting ring plate, and the mounting ring plate is evenly provided with ring plate mounting holes; the hub includes a hub outer disc and a hub inner disc, the hub outer disc and the hub inner disc are fixedly connected by connecting support blocks, the hub inner disc is provided with a shaft hole, the hub outer disc is provided with spline teeth, and the spline teeth on the hub outer disc are correspondingly arranged with the spline grooves on the inner wall surface of the external gear ring; the hub outer disc is also evenly provided with hub outer disc mounting holes, and the hub outer disc mounting holes are correspondingly arranged with the mounting holes of the mounting ring plate.

[0012] The signal gear is set in the form of an external gear ring and a hub, and the hub inner disc and the hub outer disc are connected and fixed by connecting support blocks. In this way, a relatively large gap space will be formed between the hub inner disc and the outer disc. Such a setting is convenient for the signal gear to dissipate heat on the one hand, and on the other hand, it can effectively reduce the weight of the signal gear, reduce the moment of inertia, improve the response speed, and thus improve the accuracy of signal transmission. The signal gear is designed as a split external gear ring and hub. In this way, when one of the external gear ring or the hub is damaged, only the damaged part needs to be replaced, so that the cost can be reduced. The inner wall surface of the external gear ring is provided with spline grooves, and the hub outer disc is provided with corresponding spline teeth; an installation ring plate is extended at the bottom of the external gear ring, and the installation ring plate is provided with ring plate installation holes. Corresponding hub outer disc installation holes are provided on the hub outer disc. During assembly, the hub is spline-connected with the external gear disc, and then bolts are passed through the installation holes of the hub outer disc and the installation ring plate, and then tightened with nuts to achieve stable connection of the external gear disc and the hub, effectively ensuring the overall structural strength and operation stability of the signal gear.

[0013] Furthermore, both the external gear ring and the hub are integrally formed by using 20CrMnTi alloy material.

[0014] Furthermore, the spline teeth are rectangular.

[0015] Furthermore, the tooth surface of each tooth of the signal gear is also subjected to texturing treatment, and uniformly distributed groove textures are formed on the tooth surface of the tooth. Performing texturing treatment on the tooth surface to form groove textures can effectively disperse stress, reduce wear on the gear surface, and improve the wear resistance of the gear.

[0016] Furthermore, a TiN coating is also sprayed on the tooth surface of each tooth of the signal gear. Spraying a TiN coating on the tooth surface can further reduce wear on the gear surface and further improve the wear resistance and corrosion resistance of the gear.

[0017] Beneficial effects: The signal gear disclosed by the present utility model has excellent heat dissipation performance, wear resistance, corrosion resistance, running stability, accuracy and stability of signal transmission and other performances. A relatively large heat dissipation gap is provided inside the signal gear of the present utility model. On the one hand, it facilitates heat dissipation of the signal gear. On the other hand, it can effectively reduce the weight of the signal gear, reduce the moment of inertia, improve the response speed, and thus improve the accuracy of signal transmission. The tooth surface of the tooth of the signal gear of the present utility model is subjected to texturing treatment to form uniformly distributed groove textures. On the one hand, it can effectively disperse stress, reduce wear on the gear surface, and improve the wear resistance of the gear. On the other hand, it can effectively improve the contact state of the tooth surface, reduce vibration and noise, and improve the accuracy and stability of signal transmission. A TiN coating is also sprayed on the tooth surface of the tooth of the signal gear of the present utility model, which can further reduce wear on the gear surface and further improve the wear resistance and corrosion resistance of the gear. Description of the Drawings

[0018] Figure 1 is a structural schematic diagram of an integral signal gear;

[0019] Figure 2 is a structural schematic diagram of a split signal gear;

[0020] Figure 3 is a structural schematic diagram of the outer gear of the split signal gear;

[0021] Figure 4 is a structural schematic diagram of the hub of the split signal gear;

[0022] Figure 5 is a structural schematic diagram of the tooth surface of the tooth.

[0023] Description of the reference numerals: outer tooth disk 1, inner hub disk 2, connecting support block 3, outer hub disk 4, spline tooth 5, outer hub disk mounting hole 6, tooth 11, spline groove 12, mounting ring plate 13, ring plate mounting hole 14, groove texture 111. Detailed Embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] As Figure 1 and Figure 5 shown, the present utility model discloses a signal gear, which includes an outer tooth ring 1 and an inner hub disk 2. The outer tooth ring 1 is evenly provided with teeth 11. The center of the inner hub disk 2 is provided with a shaft hole. The outer tooth ring 1 and the inner hub disk 2 are connected and fixed by a connecting support block 3. The signal gear is integrally formed.

[0027] The present utility model designs the signal gear in the form of an outer tooth ring 1 and an inner hub disk 2, and the inner hub disk 2 and the outer tooth ring 1 are connected and fixed by a connecting support block 3. With such a design, there will be a large gap space between the outer tooth ring 1 and the inner hub disk 2. On the one hand, it is convenient for the signal gear to dissipate heat. On the other hand, it can effectively reduce the weight of the signal gear, reduce the moment of inertia, improve the response speed, and further improve the accuracy of signal transmission. The signal gear is integrally formed, which can effectively ensure the overall structural strength, wear resistance and operation stability of the signal gear.

[0028] In some embodiments, the signal gear is integrally formed from 20CrMnTi alloy material. Using 20CrMnTi alloy material can effectively improve the strength, wear resistance and corrosion resistance of the signal gear.

[0029] In some embodiments, the tooth surface of each tooth 11 of the signal gear is also subjected to texturing treatment, and uniformly distributed groove textures 111 are formed on the tooth surface of the tooth. Performing texturing treatment on the tooth surface to form groove textures can, on the one hand, effectively disperse stress, reduce the wear of the gear surface, and improve the wear resistance of the gear. On the other hand, it can effectively improve the contact state of the tooth surface, reduce vibration and noise, and improve the accuracy and stability of signal transmission.

[0030] In some embodiments, the tooth surface of each tooth 11 of the signal gear is also sprayed with a TiN coating. Spraying a TiN coating on the tooth surface can further reduce the wear of the gear surface and further improve the wear resistance and corrosion resistance of the gear.

[0031] Embodiment 2

[0032] As Figures 2 - 5As shown in the figure, the present utility model also provides a signal gear, which includes an outer tooth ring 1 and a hub. The outer tooth ring 1 is evenly provided with teeth 11, the inner wall surface of the outer tooth ring 1 is evenly provided with spline grooves 12, the bottom of the outer tooth ring 1 extends inward to form an installation ring plate 13, and the installation ring plate 13 is evenly provided with ring plate installation holes 14; the hub includes a hub outer disc 4 and a hub inner disc 2, the hub outer disc 4 and the hub inner disc 2 are fixedly connected by connecting support blocks 3, the hub inner disc 2 is provided with a shaft hole, the hub outer disc 4 is provided with spline teeth 5, and the spline teeth 5 on the hub outer disc correspond to the spline grooves 12 on the inner wall surface of the outer tooth ring; the hub outer disc 4 is also evenly distributed with hub outer disc installation holes 6, and the hub outer disc installation holes 6 correspond to the ring plate installation holes 14.

[0033] The signal gear is set in the form of an outer tooth ring 1 and a hub. The hub inner disc 2 and the hub outer disc 4 are connected and fixed by the connecting support block 3. In this way, a relatively large gap space will be formed between the hub inner disc 2 and the hub outer disc 4. Such a setting is convenient for the signal gear to dissipate heat on the one hand, and on the other hand, it can effectively reduce the weight of the signal gear, reduce the moment of inertia, improve the response speed, and thus improve the accuracy of signal transmission. The signal gear is designed as a split outer tooth ring and hub. In this way, when one of the outer tooth ring or the hub is damaged, only the damaged part needs to be replaced, so that the cost can be reduced. The inner wall surface of the outer tooth ring is provided with spline grooves 12, and the hub outer disc is provided with corresponding spline teeth 5; an installation ring plate 13 is extended at the bottom of the outer tooth ring, the installation ring plate 13 is provided with ring plate installation holes 14, and corresponding hub outer disc installation holes 6 are provided on the hub outer disc. During assembly, the hub is spline-connected to the outer tooth disc, and then the bolts pass through the installation holes of the hub outer disc 4 and the installation ring plate 13, and then tightened with nuts, so as to realize the stable connection of the outer tooth disc and the hub, effectively ensuring the overall structural strength and operation stability of the signal gear.

[0034] In some embodiments, both the outer tooth ring and the hub inner disc are integrally formed by 20CrMnTi alloy material.

[0035] In some embodiments, the spline teeth 5 and the spline grooves 12 are rectangular.

[0036] In some embodiments, the tooth surface of each tooth 11 of the signal gear is also subjected to texturing treatment, and uniformly distributed groove textures 111 are formed on the tooth surface of the tooth. Texturing the tooth surface to form groove textures can effectively disperse stress, reduce wear on the gear surface, and improve the wear resistance of the gear.

[0037] In some embodiments, a TiN coating is further sprayed on the tooth surface of each tooth 11 of the signal gear. Spraying the TiN coating on the tooth surface can further reduce the wear of the gear surface and further improve the wear resistance and corrosion resistance of the gear.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A signal gear, characterized in that: It includes an outer gear ring and a hub inner disk, the outer gear ring is evenly provided with gear teeth, the center of the hub inner disk is provided with an axial hole, the outer gear ring and the hub inner disk are connected and fixed by a connecting support block, and the signal gear is formed in one piece.

2. The signal gear according to claim 1, characterized in that: The signal gear is formed in one piece from 20CrMnTi alloy material.

3. The signal gear according to claim 1, characterized in that: The tooth surface of each gear tooth of the signal gear is also textured, and a uniformly distributed groove texture is formed on the tooth surface.

4. The signal gear according to claim 1, characterized in that: The tooth surface of each tooth of the signal gear is also sprayed with a TiN coating.

5. A signal gear, characterized in that: The signal gear comprises an outer gear ring and a wheel hub, the outer gear ring is evenly provided with gear teeth, the inner wall surface of the outer gear ring is evenly provided with spline grooves, the bottom of the outer gear ring is also extended inwardly with a mounting ring plate, and the mounting ring plate is evenly provided with ring plate mounting holes; the wheel hub comprises a wheel hub outer disk and a wheel hub inner disk, the wheel hub outer disk and the wheel hub inner disk are fixedly connected by a connecting support block, the wheel hub inner disk is provided with an axial hole, the wheel hub outer disk is provided with spline teeth, and the spline teeth on the wheel hub outer disk are arranged correspondingly to the spline grooves on the inner wall surface of the outer gear ring; the wheel hub outer disk is also evenly provided with wheel hub outer disk mounting holes, and the wheel hub outer disk mounting holes are arranged correspondingly to the mounting holes of the annular plate.

6. The signal gear according to claim 5, characterized in that: The outer gear ring and the wheel hub are both integrally formed of 20CrMnTi alloy material.

7. The signal gear according to claim 5, characterized in that: The spline teeth and spline grooves are rectangular.

8. The signal gear according to claim 5, characterized in that: The tooth surface of each gear tooth of the signal gear is also textured, and a uniformly distributed groove texture is formed on the tooth surface.

9. The signal gear according to claim 5, characterized in that: The tooth surface of each tooth of the signal gear is also sprayed with a TiN coating.

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