High-precision full-tooth-profile grinding planet gear

Abstract

The utility model discloses a high-precision full-tooth-profile grinding planet gear which comprises a gear ring, a plurality of teeth are fixedly arranged on the outer side of the gear ring at equal angles, a positioning ring groove is formed in the inner wall of the gear ring, a heat dissipation mechanism is arranged in the gear ring, the heat dissipation mechanism comprises a plurality of heat dissipation grooves formed in the gear ring, and the positioning ring groove is formed in the inner wall of the gear ring. A plurality of heat dissipation grooves are formed in the gear ring, a plurality of circulation grooves are further formed in the gear ring, one end of each circulation groove is communicated with the positioning ring groove, the other end of each circulation groove is communicated with the corresponding heat dissipation groove, a plurality of anti-skid lines are arranged on the inner wall of the positioning ring groove, and the side face of each tooth is in an arc shape. The top end of each tooth is in a chamfer shape, the inner sides of the two ends of the gear ring are in an arc shape, and the gear ring is reasonable in structure and has the advantages of being accurate in meshing and good in heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of gears, in particular to a high-precision full-tooth profile grinding planetary wheel. Background Art

[0002] A planetary gear is a transmission device consisting of a central shaft and several gears around it, commonly used in reducers and transmissions. A planetary gear consists of a planet carrier, planetary gears, a sun gear and a ring gear, and its function is to achieve the transmission of power and torque.

[0003] In the prior art, after the planetary gear meshes with the sun gear, the tooth accuracy cannot reach a high standard, and the top of the tooth generally has no curvature. Therefore, the planetary gear and the sun gear are easily separated when they mesh and rotate. Moreover, the planetary gear will generate more heat when rotating for a long time. If the heat is not dissipated in time, the service life of the planetary gear will be affected. In view of the above problems, a solution is proposed below. Utility Model Content

[0004] The utility model aims to provide a high-precision full-tooth profile grinding planetary wheel, which has the advantages of precise meshing and good heat dissipation effect.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A high-precision full-tooth profile ground planetary gear comprises a gear ring, a plurality of teeth are fixedly arranged at equal angles on the outer side of the gear ring, a positioning ring groove is arranged on the inner wall of the gear ring, a heat dissipation mechanism is arranged inside the gear ring, the heat dissipation mechanism comprises a plurality of heat dissipation grooves arranged on the gear ring, and the plurality of heat dissipation grooves are all arc-shaped, and a plurality of flow grooves are also arranged in the gear ring, one end of the plurality of flow grooves is connected with the positioning ring groove, and the other end is respectively connected with the plurality of heat dissipation grooves.

[0007] Preferably, a plurality of anti-slip grooves are provided on the inner wall of the positioning ring groove.

[0008] Preferably, the side surface of each tooth is arc-shaped, and the top of each tooth is chamfered.

[0009] Preferably, the inner sides of both ends of the gear ring are arc-shaped.

[0010] Preferably, friction lines are provided on the side surfaces of each tooth.

[0011] The beneficial effects of the utility model are as follows: the planetary gear and the sun gear can be meshed by a plurality of teeth, and because the side surfaces of the teeth are all arc-shaped, the top surfaces are all chamfered, and the side surfaces are all provided with friction patterns, the meshing of the plurality of teeth with the outer teeth of the planetary gear can be made more secure, so as to prevent the teeth from slipping and causing the planetary gear and the sun gear to separate, and the secure meshing of the planetary gear and the sun gear can make the power and torque greater when the gear train is working, and the heat dissipation mechanism can play a role in heat dissipation when the ring gear is working, so as to prevent the ring gear from overheating, thereby effectively increasing the service life of the planetary gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment;

[0013] Figure 2 is a cross-sectional view of an embodiment;

[0014] Figure 3 Schematic diagram of the internal structure of the embodiment.

[0015] Figure numerals: 1. gear ring; 2. tooth; 3. positioning ring groove; 4. heat dissipation mechanism; 5. heat dissipation groove; 6. circulation groove; 7. anti-slip pattern; 8. friction pattern. DETAILED DESCRIPTION

[0016] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] like Figures 1 to 3 As shown, a high-precision full-tooth profile ground planetary gear includes a gear ring 1, and a plurality of teeth 2 are fixedly arranged at equal angles on the outer side of the gear ring 1, and the planetary gear and the sun gear can be meshed through the plurality of teeth 2. The side surface of each tooth 2 is arc-shaped, the top of each tooth 2 is chamfered, and the side surface of each tooth 2 is provided with friction lines 8, which can make the plurality of teeth 2 and the outer teeth of the planetary gear mesh more firmly to prevent the teeth 2 from slipping and causing the planetary gear to separate from the sun gear, and the firm meshing of the planetary gear and the sun gear can make the power and torque greater when the gear train is working.

[0018] A positioning ring groove 3 is provided on the inner wall of the gear ring 1, through which the gear ring 1 can be connected and installed with the external shaft body to ensure a more accurate position after installation, and a number of anti-slip grooves 7 are provided on the inner wall of the positioning ring groove 3 to prevent the planetary gear from separating from the external shaft body after installation. The inner sides of both ends of the gear ring 1 are arc-shaped to prevent the external shaft body from being scratched when the gear ring 1 is connected to the external shaft body.

[0019] A heat dissipation mechanism 4 is provided in the gear ring 1, and the heat dissipation mechanism 4 can play a role in heat dissipation when the gear ring 1 is working. The heat dissipation mechanism 4 includes a plurality of heat dissipation grooves 5 provided on the gear ring 1, and the plurality of heat dissipation grooves 5 are all arc-shaped. A plurality of circulation grooves 6 are also provided in the gear ring 1, and one end of the plurality of circulation grooves 6 is connected with the positioning ring groove 3, and the other end is respectively connected with the plurality of heat dissipation grooves 5. When the gear ring 1 rotates and works, the fluidity of the air inside the gear ring 1 can be increased through the plurality of heat dissipation grooves 5 and the circulation grooves 6, so that the heat generated inside the gear ring 1 when working can be effectively dissipated to prevent the gear ring 1 from overheating, and thus the service life of the planetary gear can be effectively increased.

[0020] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision full-tooth profile grinding planetary gear, characterized in that: The invention comprises a gear ring (1), a plurality of teeth (2) are fixedly arranged at equal angles on the outer side of the gear ring (1), a positioning ring groove (3) is arranged on the inner wall of the gear ring (1), a heat dissipation mechanism (4) is arranged inside the gear ring (1), the heat dissipation mechanism (4) comprises a plurality of heat dissipation grooves (5) arranged on the gear ring (1), the plurality of heat dissipation grooves (5) are all arc-shaped, and a plurality of circulation grooves (6) are also arranged inside the gear ring (1), one end of the plurality of circulation grooves (6) is connected to the positioning ring groove (3), and the other end is respectively connected to the plurality of heat dissipation grooves (5).

2. A high-precision full-tooth profile grinding planetary gear according to claim 1, characterized in that: A plurality of anti-slip grooves (7) are arranged on the inner wall of the positioning ring groove (3).

3. A high-precision full-tooth profile grinding planetary gear according to claim 2, characterized in that: The side surface of each tooth (2) is arc-shaped, and the top of each tooth (2) is chamfered.

4. The high-precision full-tooth profile grinding planetary gear according to claim 3, characterized in that: The inner sides of both ends of the gear ring (1) are arc-shaped.

5. The high-precision full-tooth profile grinding planetary gear according to claim 4, characterized in that: The side surface of each tooth (2) is provided with a friction pattern (8).

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