High-rotating-speed low-noise sun gear

Abstract

The utility model discloses a high-rotating-speed low-noise sun gear, belongs to the technical field of transmission parts, and solves the problems that after excessive friction, teeth of the sun gear are inevitably lubricated and even knocked, the sun gear cannot rotate smoothly in the rotating process at the moment, noise is generated in the transmission process, and the service life of the sun gear is prolonged. And abnormal sound of the whole equipment is caused. Comprising a plurality of plates and a plurality of racks fixedly connected to the outer rings of the plates, the adjacent plates are detachably connected, and an annular containing space is jointly formed in the racks. In the working process, the sun gear generates friction vibration due to lack of lubrication, heat is transmitted to the lubricating grease, the lubricating grease flows out through the fine holes under the action of vibration, heat and centrifugal force and is attached to the surface of the rack, and insufficient lubrication is avoided. If the teeth are damaged, an operator can judge the damaged position and disassemble bolts and nuts to replace corresponding parts. And good lubrication enables the sun gear to rotate smoothly, low noise is generated during transmission, and abnormal sound of equipment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology, and in particular to a high-speed, low-noise sun gear. Background Technology

[0002] The sun gear is the core component of a planetary gear system, located at the center of the planetary gear set. It is typically a cylindrical shaft with an external gear. It meshes with the surrounding planetary gears, transmitting power and changing the gear ratio. The number of teeth and module of the sun gear are determined according to specific design requirements. Its main function is to transmit power from the input shaft to the planetary gears, or from the planetary gears to the output shaft, thereby regulating speed and torque. The sun gear structure includes a gear body and a gear ring. The gear ring is precision-machined to ensure accurate meshing with the planetary gears. It is typically made of high-strength steel or alloy steel, manufactured through forging, machining, and heat treatment to improve its strength, wear resistance, and fatigue resistance.

[0003] However, after prolonged use, the sun gear teeth inevitably lose lubrication or even break due to excessive friction. In this case, the sun gear will not rotate smoothly and will produce noise during transmission, causing abnormal noise in the entire device.

[0004] Therefore, a high-speed, low-noise sun gear is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-speed, low-noise sun gear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-speed, low-noise sun gear includes several plates and several racks fixedly connected to the outer ring of the plates. Adjacent plates are detachably connected, and a common annular receiving space is formed in the racks. The receiving space is filled with grease. Fine guide holes communicating with the receiving space are formed on both sides of the racks. Expanding guide grooves communicating with the fine guide holes and having the same length direction as the rack are formed on both sides of the racks. The central axis of the fine guide holes is tangent to the contour of the rack sidewall.

[0008] Preferably, the plurality of plates include a first end ring plate, a second end ring plate, and a first connecting ring and a second connecting ring detachably connected between the first end ring plate and the second end ring plate. The plurality of racks include a first side rack, a first intermediate rack, a second intermediate rack, and a second side rack respectively fixedly connected to the first end ring plate, the first connecting ring, the second connecting ring, and the second end ring plate. The accommodating space includes a first accommodating groove, a second accommodating groove, a third accommodating groove, and a fourth accommodating groove respectively formed on the first side rack, the first intermediate rack, the second intermediate rack, and the second side rack.

[0009] Preferably, the distance between the first side rack and the second side rack is equal to the sum of the thicknesses of the first intermediate rack and the second intermediate rack, and when the first end ring plate, the first connecting ring, the second connecting ring, and the second end ring plate are detachably connected, the sides of the first side rack, the first intermediate rack, the second intermediate rack, and the second side rack are fitted together.

[0010] Preferably, the first end ring plate, the first connecting ring, the second connecting ring, and the second end ring plate are each provided with a plurality of through holes, which can be used to penetrate the bolt and nut structure to achieve a detachable connection between the first end ring plate, the first connecting ring, the second connecting ring, and the second end ring plate.

[0011] Preferably, a recessed groove coaxially arranged with the through hole is provided on the side of the first end ring plate and the second end ring plate that are far apart from each other.

[0012] Preferably, the opening edge of the expansion guide groove is chamfered.

[0013] Preferably, the first end ring plate and the first side rack are integrally formed, the first connecting ring and the first intermediate rack are integrally formed, the second connecting ring and the second intermediate rack are integrally formed, and the second end ring plate and the second side rack are integrally formed.

[0014] This utility model has the following beneficial effects:

[0015] In operation, the sun gear vibrates due to lack of lubrication, transferring heat to the grease. Under the influence of vibration, heat, and centrifugal force, the grease flows out through fine holes and adheres to the rack surface, preventing insufficient lubrication. If the teeth are damaged, the operator can determine the location of the damage and replace the corresponding parts by removing the bolts and nuts. Good lubrication ensures smooth rotation of the sun gear, low noise during transmission, and avoids abnormal noises from the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is an exploded view of the present invention.

[0020] 1. First end ring plate; 101. First side rack; 102. First receiving groove; 2. First connecting ring; 201. First intermediate rack; 202. Second receiving groove; 3. Second connecting ring; 301. Second intermediate rack; 302. Third receiving groove; 4. Second end ring plate; 401. Second side rack; 402. Fourth receiving groove; 5. Countersunk groove; 6. Through hole; 7. Fine guide hole; 8. Expansion guide groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A high-speed, low-noise sun gear, such as Figures 1 to 3 As shown, it includes several plates and several racks fixedly connected to the outer ring of the plates. Adjacent plates are detachably connected, and several racks have a common annular receiving space filled with grease. The two side walls of the racks have fine guide holes 7 that communicate with the receiving space. The two side walls of the racks also have expansion guide grooves 8 that communicate with the fine guide holes 7 and have the same length direction as the rack. The opening edge of the expansion guide groove 8 has a chamfer. The central axis of the fine guide hole 7 is tangent to the contour of the rack side wall.

[0028] The plurality of plates include a first end ring plate 1, a second end ring plate 4, and a first connecting ring 2 and a second connecting ring 3 detachably connected between the first end ring plate 1 and the second end ring plate 4. The plurality of racks include a first side rack 101, a first intermediate rack 201, a second intermediate rack 301, and a second side rack 401 respectively fixedly connected to the first end ring plate 1, the first connecting ring 2, the second connecting ring 3, and the second end ring plate 4. The first end ring plate 1 and the first side rack 101 are integrally formed, the first connecting ring 2 and the first intermediate rack 201 are integrally formed, the second connecting ring 3 and the second intermediate rack 301 are integrally formed, and the second end ring plate 4 and the second side rack 401 are integrally formed.

[0029] The accommodating space includes a first accommodating groove 102, a second accommodating groove 202, a third accommodating groove 302, and a fourth accommodating groove 402 respectively opened on the first side rack 101, the first intermediate rack 201, the second intermediate rack 301, and the second side rack 401. The distance between the first side rack 101 and the second side rack 401 is equal to the sum of the thicknesses of the first intermediate rack 201 and the second intermediate rack 301. When the first end ring plate 1, the first connecting ring 2, the second connecting ring 3, and the second end ring plate 4 are detachably connected, the sides of the first side rack 101, the first intermediate rack 201, the second intermediate rack 301, and the second side rack 401 are fitted together.

[0030] The first end ring plate 1, the first connecting ring 2, the second connecting ring 3, and the second end ring plate 4 are all provided with several through holes 6. The through holes 6 can be used to pass through the bolt and nut structure to realize the detachable connection of the first end ring plate 1, the first connecting ring 2, the second connecting ring 3, and the second end ring plate 4. The side of the first end ring plate 1 and the second end ring plate 4 that is far away from each other is provided with a groove 5 that is coaxially arranged with the through holes 6.

[0031] In actual operation, the sun gear may experience friction and vibration due to lack of lubrication. The heat from the sun gear will be transferred to the grease in the receiving space. Due to vibration, heat, and centrifugal force from the rotation of the sun gear, the grease in the receiving space will gradually leave the interior of the sun gear through the fine guide hole 7. When the grease leaves the fine guide hole 7, it enters the expansion guide groove 8. Guided by the expansion guide groove 8, the grease will slowly expand outward through the chamfer at the edge of the opening of the expansion guide groove 8, so that the grease can adhere to the surface of the first side rack 101, the second side rack 401, the first intermediate rack 201, and the second intermediate rack 301, thus preventing the sun gear from lacking lubrication during operation.

[0032] If the teeth in the sun gear are damaged, the operator can determine whether the damage is to the first side rack 101, the first intermediate rack 201, the second intermediate rack 301, or the second side rack 401. The operator can then replace the corresponding teeth as needed. Simply remove the bolt and nut structure, remove the bolt and nut from the through hole 6, and then replace the corresponding first end ring plate 1, first connecting ring 2, second connecting ring 3, or second end ring plate 4. After replacement, the bolt and nut structure can be reconnected.

[0033] In summary, the teeth of the sun gear are less likely to lose lubrication or even break. In this case, the sun gear can rotate smoothly during rotation and there will be no noise during transmission, thus avoiding abnormal noise from the entire device.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high speed, low noise sun gear, characterized by, It includes several plates and several racks fixedly connected to the outer ring of the plates. The adjacent plates are detachably connected, and the racks are provided with a common annular receiving space. The receiving space is filled with grease. The two side walls of the racks are provided with fine guide holes (7) that communicate with the receiving space. The two side walls of the racks are provided with expansion guide grooves (8) that communicate with the fine guide holes (7) and have the same length direction as the rack. The central axis of the fine guide holes (7) is tangent to the contour of the rack side wall.

2. A high speed, low noise sun gear as set forth in claim 1, wherein, The plurality of plate components include a first end ring plate (1), a second end ring plate (4), and a first connecting ring (2) and a second connecting ring (3) detachably connected between the first end ring plate (1) and the second end ring plate (4). The plurality of racks include a first side rack (101), a first intermediate rack (201), a second intermediate rack (301), and a second side rack (401) respectively fixedly connected to the first end ring plate (1), the first connecting ring (2), the second connecting ring (3), and the second end ring plate (4). The accommodating space includes a first accommodating groove (102), a second accommodating groove (202), a third accommodating groove (302), and a fourth accommodating groove (402) respectively opened on the first side rack (101), the first intermediate rack (201), the second intermediate rack (301), and the second side rack (401).

3. A high speed, low noise sun gear as set forth in claim 2, wherein, The distance between the first side rack (101) and the second side rack (401) is equal to the sum of the thicknesses of the first intermediate rack (201) and the second intermediate rack (301). When the first end ring plate (1), the first connecting ring (2), the second connecting ring (3), and the second end ring plate (4) are detachably connected, the sides of the first side rack (101), the first intermediate rack (201), the second intermediate rack (301), and the second side rack (401) are fitted together.

4. A high-speed, low-noise sun gear according to claim 2, characterized in that, The first end ring plate (1), the first connecting ring (2), the second connecting ring (3), and the second end ring plate (4) are all provided with several through holes (6). The through holes (6) can be used to pass through the bolt and nut structure to realize the detachable connection of the first end ring plate (1), the first connecting ring (2), the second connecting ring (3), and the second end ring plate (4).

5. A high speed, low noise sun gear as set forth in claim 3, wherein, A groove (5) coaxially arranged with the through hole (6) is provided on the side of the first end ring plate (1) and the second end ring plate (4) that are far apart from each other.

6. A high speed, low noise sun gear as set forth in claim 1, wherein, The opening edge of the expansion guide groove (8) is chamfered.

7. A high speed, low noise sun gear as set forth in claim 2, wherein, The first end ring plate (1) and the first side rack (101) are integrally formed, the first connecting ring (2) and the first intermediate rack (201) are integrally formed, the second connecting ring (3) and the second intermediate rack (301) are integrally formed, and the second end ring plate (4) and the second side rack (401) are integrally formed.

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