Novel lubricating gearbox

By introducing a lubrication cylinder, drive roller, and spiral cooling fins into the gearbox, the problems of uneven lubricant distribution and low heat dissipation efficiency are solved, achieving uniform lubrication and efficient heat dissipation of the gear set, extending the service life of the lubricant and reducing operating costs.

CN223622174UActive Publication Date: 2025-12-02ZHEJIANG RONGFA MOTOR ENGINE
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Patent Information

Application Number
CN202520495066.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2025-12-02
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Traditional gearboxes suffer from uneven lubricant distribution and low heat dissipation efficiency, leading to severe wear on gear meshing and affecting their service life.

Method used

A novel lubrication gearbox was designed, employing a lubrication cylinder and drive roller structure. Through circumferentially distributed lubrication holes and spiral heat dissipation fins, combined with the cooperation of rollers and limiting guide grooves, uniform lubrication and efficient heat dissipation are achieved, and the lubricating oil is recycled through an oil collection groove and oil return pipeline.

Benefits of technology

It achieves uniform lubrication of the gear set, reduces wear, improves heat dissipation efficiency, extends the service life of the lubricating oil, simplifies the maintenance process, and reduces operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel lubricating gearbox, and belongs to the field of gearboxes. The existing problems are solved. The novel lubricating gearbox comprises a box body, a lubricating mechanism is arranged in the box body, the lubricating mechanism comprises a lubricating cylinder, the two ends of the lubricating cylinder extend outwards in the axial direction to form matching rings, and limiting guide grooves are formed in the outer portions of the matching rings; the driving roller and the lubricating cylinder are arranged in an up-and-down rolling fit structure, a lubricating oil cavity is formed in the driving roller, and hollow shafts are connected to the two ends of the driving roller and communicate with a gearbox oil pump; the plurality of movable rollers are mounted on a mounting seat in the box body through movable pins, and the rollers are movably matched with the limiting guide grooves; lubricating holes distributed circumferentially at intervals are formed in the peripheral wall of the lubricating cylinder, a gearbox gear set can penetrate into the lubricating cylinder for installation, and a movable gap is reserved between the inner wall of the lubricating cylinder and the gear set. And a plurality of oil outlet holes are formed in the driving roller. The utility model has the advantage of uniform lubrication.
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Description

Technical Field

[0001] This utility model belongs to the field of gearboxes, and relates to a gearbox, and particularly to a novel lubrication gearbox. Background Technology

[0002] A transmission, also known as a gearbox, is a mechanism used to change the speed and torque from an engine. It can change the transmission ratio between the output shaft and the input shaft in a fixed or progressively increasing manner. A transmission consists of a gear-changing mechanism and a control mechanism; some cars also have a power take-off (PTO) mechanism.

[0003] Traditional transmissions suffer from uneven lubricant distribution and low heat dissipation efficiency, which greatly affect their service life and cause high wear on gear meshing. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel lubricated gearbox to solve these issues.

[0005] The purpose of this utility model can be achieved through the following technical solution: A novel lubrication gearbox, including a housing, characterized in that a lubrication mechanism is provided inside the housing, the lubrication mechanism including: a lubrication cylinder, with mating rings extending axially outward at both ends, and a limiting guide groove is provided on the outside of the mating ring;

[0006] The drive roller is configured to roll and fit against the lubrication cylinder in an up-and-down manner. The drive roller has a lubricating oil cavity inside and hollow shafts are connected to both ends. The hollow shafts are connected to the gearbox oil pump.

[0007] Multiple movable rollers are mounted on mounting bases inside the housing via movable pins, and the rollers are movably engaged with limiting guide grooves;

[0008] The outer peripheral wall of the lubrication cylinder is provided with circumferentially spaced lubrication holes, and the gearbox gear set can be inserted and installed inside, with a movable gap between the inner wall and the gear set.

[0009] The drive roller has multiple oil outlet holes.

[0010] In the aforementioned novel lubricated transmission, an oil collection trough is provided at the bottom of the housing, and the oil collection trough is connected to the transmission oil pump via a return oil pipeline.

[0011] In the aforementioned novel lubrication gearbox, there are eight rollers and mounting bases, arranged in pairs facing each other.

[0012] In the aforementioned novel lubrication gearbox, the lubrication cylinder and the mating ring are integrally formed, and the inner walls at both ends are provided with spiral heat dissipation fins.

[0013] Compared with existing technologies, this novel lubrication gearbox has the following advantages:

[0014] 1. The circumferentially distributed lubrication holes, combined with the rolling contact structure, ensure that all parts of the gear set are evenly covered with lubricating oil, reducing local wear. Its spiral heat dissipation fin design enhances the heat dissipation capacity of the lubrication cylinder, extends the service life of the lubricating oil, and enables it to have the functions of uniform lubrication and efficient heat dissipation.

[0015] 2. The design of the roller and the limiting guide groove ensures the stability of the lubrication cylinder operation, reduces vibration and noise, and the modular oil collection tank and return oil pipeline simplify the maintenance process of the lubrication system. The lubricating oil recycling system reduces resource consumption, lowers operating costs, and conforms to the green design concept. Attached Figure Description

[0016] Figure 1 This is a three-dimensional cross-sectional view of the internal structure of this new type of lubricated gearbox.

[0017] Figure 2 This is a three-dimensional cross-sectional view of the internal structure of this new type of lubricated gearbox.

[0018] In the diagram, 1 is the housing; 2 is the lubrication cylinder; 3 is the mating ring; 4 is the limiting guide groove; 5 is the drive roller; 6 is the hollow shaft; 7 is the roller; 8 is the mounting base; 9 is the lubrication hole; and 10 is the oil outlet. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 As shown, this novel lubricated gearbox includes a housing 1, inside which a lubrication mechanism is provided. The lubrication mechanism includes: a lubrication cylinder 2, with mating rings 3 extending axially outward at both ends, and limiting guide grooves 4 formed on the outside of the mating rings 3; a drive roller 5, which is arranged in a rolling contact structure with the lubrication cylinder 2, and has a lubricating oil cavity inside, with hollow shafts 6 connected to both ends, the hollow shafts 6 being connected to the gearbox oil pump; multiple movable rollers 7, which are mounted on mounting seats 8 inside the housing 1 via movable pins, and the rollers 7 are movably engaged with the limiting guide grooves 4; the outer peripheral wall of the lubrication cylinder 2 has circumferentially spaced lubrication holes 9, which can be inserted and installed into the gearbox gear set, and a movable clearance is left between the inner wall and the gear set; the drive roller 5 has multiple oil outlet holes 10.

[0021] The bottom of the housing 1 is provided with an oil collection tank, which is connected to the gearbox oil pump through the oil return pipeline. There are 8 rollers 7 and mounting bases 8, which are distributed in pairs opposite each other. The lubrication cylinder 2 and the mating ring 3 are integrally formed, and the inner walls at both ends are provided with spiral heat dissipation fins.

[0022] Dynamic operation of the lubrication mechanism:

[0023] The drive roller 5 is connected to the gearbox oil pump via the hollow shaft 6 mandrel, injecting lubricating oil into its internal oil chamber and releasing it evenly to the surface of the lubrication cylinder 2 through the oil outlet 10.

[0024] The lubrication cylinder 2 and the drive roller 5 roll and fit together. During the rotation, the lubrication holes 9 on the lubrication cylinder 2 spray lubricating oil evenly onto the internal gear set to achieve dynamic lubrication.

[0025] The roller 7 cooperates with the limiting guide groove 4 to ensure that the lubrication cylinder 2 maintains a stable trajectory when rotating and avoids deflection. At the same time, the roller 7, which is mounted on the movable pin, provides flexible support.

[0026] Lubricating oil circulation system:

[0027] The oil collection trough at the bottom of the housing 1 collects the overflow lubricating oil and sends it to the oil pump through the return oil pipeline to achieve recycling and reduce waste.

[0028] The spiral structure design of the heat dissipation fins enhances the heat dissipation efficiency of the lubrication cylinder 2, preventing the lubricating oil from failing due to high temperature.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0030] Although this document uses a lot of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any kind of additional limitation would contradict the spirit of this invention.

Claims

1. A novel lubricated gearbox, comprising a housing (1) and a mounting base (8) located within the housing (1), characterized in that, The housing (1) is equipped with a lubrication mechanism, which includes a lubrication cylinder (2) with mating rings (3) extending axially outward at both ends. A limit guide groove (4) is provided on the outside of the mating rings (3). The drive roller (5) is arranged in an up-and-down rolling contact structure with the lubrication cylinder (2). The drive roller (5) has a lubricating oil cavity inside and hollow shafts (6) are connected at both ends. The hollow shafts (6) are connected to the gearbox oil pump. Multiple movable rollers (7) are mounted on mounting bases (8) inside the housing (1) via movable pins, and the rollers (7) are in movable cooperation with the limiting guide grooves (4); The lubrication cylinder (2) has circumferentially spaced lubrication holes (9) on its outer peripheral wall, which can be used to install the gearbox gear set, and there is a clearance between the inner wall and the gear set. The drive roller (5) has multiple oil outlet holes (10).

2. The novel lubrication transmission according to claim 1, characterized in that, The bottom of the housing (1) is provided with an oil collection tank, which is connected to the gearbox oil pump through a return oil pipeline.

3. A novel lubricated gearbox according to claim 1, characterized in that, The number of rollers (7) and mounting bases (8) is 8, and they are arranged in pairs opposite each other.

4. A novel lubricated gearbox according to claim 1, characterized in that, The lubrication cylinder (2) and the mating ring (3) are integrally formed, and the inner walls at both ends are provided with spiral heat dissipation ribs.

Citation Information

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