Novel steering engine

By designing spiral grooves on the optical shaft, the problem of friction overheating between the optical shaft and the gear under high load and high speed of the servo is solved, the effective distribution of lubricating oil and heat dissipation are achieved, sintering is prevented, and the service life of the servo is extended.

CN223344645UActive Publication Date: 2025-09-16GUANGDONG DESHENG INTELLIGENT TECHNOLOGY CO LTD +2
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Patent Information

Application Number
CN202422826630.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-09-16
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

When the servo is running under high load and high speed conditions, the optical shaft and gear are prone to friction overheating, which will cause the gear and optical shaft to be glued and sintered, affecting the normal operation and service life of the servo.

Method used

Spiral grooves are designed on the optical axis to promote the distribution and circulation of lubricating oil, remove the heat and powder residue generated by friction, and prevent sintering.

Benefits of technology

The spiral groove design reduces the friction coefficient, enhances the lubrication effect, extends the service life of the servo, and prevents the gears and optical shaft from getting stuck.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel steering engine, and belongs to the technical field of steering engines. The novel steering engine comprises a shell and a motor, a motor gear, an optical shaft, a gear set and an output gear which are contained in the shell, the motor gear is installed at the output end of the motor, and the optical shaft and the output gear are rotationally assembled in the shell through bearings. The gear set is assembled on the optical shaft and meshed with the motor gear and the output gear, and a spiral groove for lubricating grease to flow is formed in the optical shaft. The beneficial effects of the utility model lie in that the optical axis is provided with the spiral groove, so that heat generated by friction and powder residues generated in the process can be effectively taken away, and the sintering (gluing) phenomenon can be prevented. A spiral groove in a specific geometrical shape is formed in the polished shaft, the flowing path of lubricating oil is optimized, the lubricating effect is enhanced, the self-lubricating effect is achieved, and friction and abrasion are reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of steering gears, and in particular relates to a novel steering gear. Background Art

[0002] With the development of automation and intelligent technology, servos are increasingly used in robotics, drones, automation equipment and other fields. The performance of servos directly affects the response speed and control accuracy of the system, so the design requirements for their key components are becoming increasingly stringent.

[0003] As a crucial power transmission component in a servo, the optical shaft must be designed to balance strength, rigidity, and wear resistance. Under high loads and high speeds, the optical shaft and gears can easily overheat due to friction, leading to sintering where the gears and optical shaft are bonded together. In severe cases, this can affect the servo's proper operation and service life. Utility Model Content

[0004] The purpose of the embodiment of the present utility model is to provide a new type of servo, which, by designing a spiral groove on the optical axis, can promote the distribution and circulation of lubricating oil, reduce the friction coefficient, and effectively remove the heat generated by friction and the powder residue generated during the process, thereby preventing the occurrence of sintering, and thus can solve at least one technical problem involved in the background technology.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] An embodiment of the present utility model provides a new type of steering gear, including a housing and a motor, a motor gear, an optical shaft, a gear set and an output gear housed in the housing, wherein the motor gear is mounted on the output end of the motor, the optical shaft and the output gear are rotatably assembled in the housing via bearings, the gear set is assembled on the optical shaft and meshes with the motor gear and the output gear respectively, and a spiral groove for grease flow is provided on the optical shaft.

[0007] Optionally, the housing includes a steering gear middle shell and a steering gear upper shell assembled to the upper end opening of the steering gear middle shell.

[0008] Optionally, the optical axis includes a first optical axis and a second optical axis rotatably assembled in the housing via bearings.

[0009] Optionally, the gear set includes a first gear mounted on the lower half of the first optical axis and meshing with the motor gear, a second gear mounted on the second optical axis and meshing with the first gear, and a third gear mounted on the upper half of the first optical axis and meshing with the second gear, and the third gear is also meshed with the output gear.

[0010] Optionally, the output gear includes an output shaft with one end exposed from the housing, and a waterproof ring and a gasket are provided between the output shaft and the housing.

[0011] The beneficial effects of the embodiments of the present utility model are:

[0012] (1) By setting a spiral groove on the optical axis, the heat generated by friction and the powder residue generated during the process can be effectively taken away, thereby preventing the occurrence of sintering (bonding).

[0013] (2) A spiral groove with a specific geometric shape is set on the optical axis to optimize the flow path of the lubricating oil, enhance the lubrication effect, make it self-lubricating, and reduce friction and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0015] Figure 1 A schematic cross-sectional view of the novel steering gear provided by the present invention;

[0016] Figure 2 A schematic diagram of the three-dimensional structure of the optical axis provided by the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly structure of the first optical axis and the first gear provided by the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0020] See Figure 1 As shown, the present invention provides a novel servo, comprising a housing and a motor 1, a motor gear 2, an optical shaft, a gear set, and an output gear 3 housed within the housing. The housing comprises a servo middle housing 4 and a servo upper housing 5 assembled to the upper opening of the servo middle housing 4.

[0021] The motor gear 2 is installed at the output end of the motor 1 .

[0022] The optical axis and the output gear 3 are rotatably assembled in the housing via bearings 6 .

[0023] The optical axis includes a first optical axis 7 and a second optical axis 8 rotatably assembled in the housing via bearings 6 .

[0024] Recombination Figure 2 As shown, a spiral groove 9 for grease flow is provided on the optical axis.

[0025] Recombination Figure 3 As shown, the gear set is assembled on the optical axis and meshes with the motor gear 2 and the output gear 3, respectively. Specifically, the gear set includes a first gear 10 assembled on the lower half of the first optical axis 7 and meshing with the motor gear 2, a second gear 11 assembled on the second optical axis 8 and meshing with the first gear 10, and a third gear 12 assembled on the upper half of the first optical axis 7 and meshing with the second gear 11. The third gear 12 also meshes with the output gear 3.

[0026] The output gear 3 includes an output shaft 31 with one end exposed from the housing. A waterproof ring 13 and a gasket 14 are provided between the output shaft 31 and the housing.

[0027] The working principle of the new steering gear provided by the utility model is as follows:

[0028] When the servo control panel receives a command signal, it activates motor 1, which in turn drives the gear train. Grease is applied to the optical shaft. As the gear train rotates, the spiral grooves in the optical shaft allow the grease to flow along the grooves 9 as the shaft rotates. The rotational force of the gears and shaft evenly distributes the grease across the contact surface, forming an effective oil film in the area where the shaft and gears meet, reducing friction and maintaining grease between the shaft and the bore. This design also helps evenly distribute load across the contact surface, reducing localized pressure and wear. Debris generated during the movement and friction between the shaft and gears is trapped in the grooves 9, acting as a chip removal mechanism. This further prevents excessive chip formation at the contact point between the gears and the shaft, which could lead to sintering of the gears and shaft, resulting in gear train jamming and servo failure. This design reduces wear between the shaft and gears, extending the service life of the servo.

[0029] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0030] Furthermore, it should be noted that the scope of the methods and systems in the embodiments of the present invention is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0031] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A new type of steering gear, characterized in that: It includes a housing and a motor, a motor gear, an optical shaft, a gear set and an output gear housed in the housing. The motor gear is installed at the output end of the motor. The optical shaft and the output gear are rotatably assembled in the housing through bearings. The gear set is assembled on the optical shaft and meshes with the motor gear and the output gear respectively. A spiral groove for grease flow is provided on the optical shaft.

2. A novel steering gear according to claim 1, characterized in that: The housing comprises a steering gear middle housing and a steering gear upper housing assembled with an opening at the upper end of the steering gear middle housing.

3. A novel steering gear according to claim 1, characterized in that: The optical axis includes a first optical axis and a second optical axis respectively rotatably assembled in the housing through bearings.

4. A novel steering gear according to claim 3, characterized in that: The gear set includes a first gear assembled on the lower half of the first optical axis and meshed with the motor gear, a second gear assembled on the second optical axis and meshed with the first gear, and a third gear assembled on the upper half of the first optical axis and meshed with the second gear, and the third gear is also meshed with the output gear.

5. The novel steering gear according to claim 1, characterized in that: The output gear includes an output shaft with one end exposed from the housing, and a waterproof ring and a gasket are provided between the output shaft and the housing.