High-stability gear box planet carrier structure

By designing a highly stable planetary carrier structure for the gearbox, using bent bars to collect lubricating oil and applying it evenly with an oiling roller, the problem of uneven lubricating oil collection is solved, thus improving the operational stability of the gearbox.

CN224301354UActive Publication Date: 2026-05-29NANGJING CHUANGLI GEAR MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANGJING CHUANGLI GEAR MASCH CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing planetary carrier lubricants cannot be effectively collected and evenly applied during use, resulting in poor lubrication and reduced overall stability of the planetary carrier.

Method used

A highly stable planetary carrier structure for a gearbox was designed, comprising a planetary carrier, a bent bar, an oiling roller, and a reciprocating drive mechanism. The bent bar collects lubricating oil and the oiling roller is used to apply it evenly. The oiling roller is composed of a brush roller and is driven to move inside the gearbox by a reciprocating screw and a transmission mechanism to achieve all-round coverage of lubricating oil.

Benefits of technology

This achieves uniform coating of lubricating oil inside the gearbox, improves the lubrication effect of the gears, and ensures the operational stability of the planetary carrier.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of high-stability gear box planetary carrier structures, it is related to gear box planetary carrier technical field, including planetary carrier and the support of being located at the back side of planetary carrier, the inside center of planetary carrier is rotationally provided with main shaft, the outer wall of planetary carrier is fixed with multiple bending strip that is axially uniformly arranged, the side wall of bending strip is equipped with support rod, the rod wall of support rod is fixedly equipped with oiling roller, the inside of bending strip is equipped with reciprocating drive mechanism for driving the rotation of oiling roller. The utility model can be collected while bending strip carries out collection to the lubricating oil inside gear box, oiling roller is stained lubricating oil and reciprocatingly moves, can evenly spread lubricating oil on the internal component of gear box, ensure that gear can be fully lubricated and ensure stable operation.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox planetary carrier technology, specifically to a highly stable gearbox planetary carrier structure. Background Technology

[0002] The planetary carrier of a gearbox is one of the core components of a planetary gear transmission system. It is mainly used to support planetary gears and transmit power. In order to further ensure stable engagement between gears, lubricating oil is installed inside the planetary carrier for stable lubrication. For example, patent document CN213744864U discloses a planetary carrier for a gearbox with a lubricating oil collection structure. This planetary carrier is assembled inside the planetary gears. During rotation, the rotating bar carries the lubricating oil, thereby ensuring that the lubricating oil coverage is improved during operation. This effectively solves the problem of uneven lubricating oil coverage and poor lubrication effect caused by the existing planetary gear mechanism that only lubricates the gears through the lubricating oil cavity.

[0003] However, when the curved strips on the surface of the planetary carrier are used for lubrication, the lubricating oil can only stay in the fixed position on the side wall of the curved strips and cannot spread outward. As a result, the lubricating oil collected can only be applied to the fixed area on the outside of the planetary carrier, which reduces the lubrication effect and reduces the overall stability of the planetary carrier. Utility Model Content

[0004] In view of the problems existing in the current high-stability gearbox planetary carrier structure, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a highly stable planetary carrier structure for gearboxes, which solves the problem that the external lubricating oil of existing planetary carriers cannot be effectively collected and evenly applied.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A highly stable gearbox planetary carrier structure includes a planetary carrier and a support on the back side of the planetary carrier. A main shaft is rotatably inserted through the center of the planetary carrier. A plurality of axially uniformly arranged curved strips are fixedly provided on the outer wall of the planetary carrier. Support rods are provided on the side walls of the curved strips. An oiling roller is fixedly sleeved on the wall of the support rod. A reciprocating drive mechanism for driving the oiling roller to rotate is provided inside the curved strips.

[0008] Preferably, the reciprocating drive mechanism includes a reciprocating lead screw, the inside of the bent bar has a strip-shaped hole, a slider is slidably passed through the inner wall of the strip-shaped hole, the slider is threaded onto the outside of the reciprocating lead screw through its internal reciprocating ball threads, the support rod is rotatably disposed on the side of the slider, and the rod wall of the reciprocating lead screw is provided with a transmission mechanism for driving the reciprocating lead screw to rotate.

[0009] Preferably, the transmission mechanism includes a transmission shaft, an mounting plate is fixedly provided on the inner wall of the strip hole, the transmission shaft is rotatably disposed in the mounting plate, a first bevel gear is fixedly provided at one end of the transmission shaft and the reciprocating screw, the two first bevel gears are configured to cooperate, a second bevel gear is fixedly provided at the other end of the transmission shaft, a drive bevel gear ring is fixedly sleeved on the main shaft and the outer wall, and the second bevel gear is configured to cooperate with the drive bevel gear ring.

[0010] Preferably, the oiling roller is a brush roller.

[0011] Furthermore, the curved bar is fixed to the outer wall of the planetary carrier by bolts.

[0012] Preferably, the wall of the oiling roller is in contact with the outer wall of the planetary carrier.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model, through the planetary carrier, bending bar, oiling roller and reciprocating drive mechanism, can collect lubricating oil inside the gearbox while the bending bar collects lubricating oil and the oiling roller is coated with lubricating oil and moves back and forth, so that the lubricating oil can be evenly applied to the internal components of the gearbox, ensuring that the gears are fully lubricated and thus ensuring stable operation.

[0015] 2. This utility model, through the provision of a planetary carrier, a main shaft, and a transmission mechanism, enables the shaft to rotate inside the gearbox, and the main shaft to be driven to drive the reciprocating drive mechanism to operate stably. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

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

[0018] Figure 2 This is a schematic diagram of the connection structure between the planetary carrier and the support of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0020] Figure 4 This is a side sectional view of the curved strip of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Planetary carrier; 2. Support; 3. Main shaft; 4. Bending bar; 5. Support rod; 6. Oiling roller; 7. Reciprocating screw; 8. Strip hole; 9. Slider; 10. Drive shaft; 11. Mounting plate; 12. First bevel gear; 13. Second bevel gear; 14. Drive bevel gear ring. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a highly stable planetary carrier structure for a gearbox.

[0025] Example 1

[0026] This utility model provides, for example Figure 1-4 The diagram illustrates a highly stable planetary carrier structure for a gearbox, comprising a planetary carrier 1 and a support 2 located on the back side of the planetary carrier 1. A main shaft 3 is rotatably inserted through the center of the planetary carrier 1. Multiple axially uniformly arranged curved strips 4 are fixedly installed on the outer wall of the planetary carrier 1, and the curved strips 4 are bolted to the outer wall of the planetary carrier 1. A support rod 5 is provided on the side wall of the curved strip 4, and an oiling roller 6 is fixedly sleeved on the wall of the support rod 5. The roller wall of the oiling roller 6 contacts and engages with the outer wall of the planetary carrier 1. The oiling roller 6 is a brush roller. A reciprocating drive mechanism for driving the oiling roller 6 to rotate is provided inside the curved strip 4. The reciprocating drive mechanism includes a reciprocating screw 7. A strip-shaped hole 8 is opened inside the curved strip 4, and a slider 9 slides through the inner wall of the strip-shaped hole 8. The slider 9 is threaded onto the outside of the reciprocating screw 7 through its internal reciprocating ball threads. The support rod 5 is rotatably located on the side of the slider 9. A transmission mechanism for driving the reciprocating screw 7 to rotate is provided on the wall of the reciprocating screw 7.

[0027] Example 2

[0028] Example 2, based on Example 1, in order to ensure stable operation of the reciprocating drive when the main shaft inside the planetary carrier 1 rotates following the shaft inside the gearbox, drives the oiling roller 6 to move and collect and evenly apply lubricating oil, such as... Figure 3-4 As shown, the transmission mechanism includes a transmission shaft 10, an mounting plate 11 is fixedly provided on the inner wall of the strip hole 8, the transmission shaft 10 is rotatably disposed in the mounting plate 11, a first bevel gear 12 is fixedly provided at one end of the transmission shaft 10 and the reciprocating screw 7, the two first bevel gears 12 are configured to cooperate, a second bevel gear 13 is fixedly provided at the other end of the transmission shaft 10, and a drive bevel gear ring 14 is fixedly sleeved on the main shaft 3 and the outer wall, the second bevel gear 13 is configured to cooperate with the drive bevel gear ring 14.

[0029] Working principle: When the planetary carrier structure of this high-stability gearbox is working, the main shaft 3 rotates with the shaft inside the gearbox, and the drive bevel gear ring 14 on its outer wall rotates synchronously and meshes with the second bevel gear 13 of the transmission mechanism, which drives the transmission shaft 10 to rotate. The transmission shaft 10 drives the reciprocating screw 7 to rotate through the first bevel gear 12 at both ends.

[0030] When the reciprocating screw 7 rotates, the slider 9 sleeved on it moves in a reciprocating linear motion along the axis of the reciprocating screw 7 in the strip hole 8 of the bent bar 4 due to the action of the internal reciprocating ball thread. The slider 9 drives the support rod 5 and the oiling roller 6 to move back and forth synchronously.

[0031] Meanwhile, as the planetary carrier 1 rotates, the bent bar 4 rotates with the planetary carrier 1 and is immersed in the gearbox lubricating oil to collect the lubricating oil. The oiling roller 6 contacts the outer wall of the planetary carrier 1 and, during its reciprocating movement, evenly applies the lubricating oil it has absorbed to the surface of the internal components of the gearbox. Since the oiling roller 6 can reciprocate with the slider 9, it breaks through the limitation of the traditional bent bar being able to apply lubricating oil only at a fixed position, achieving all-round and uniform coverage of lubricating oil in the gearbox, ensuring sufficient lubrication of the gears, and improving the operational stability of the planetary carrier.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A highly stable gearbox planetary carrier structure, comprising a planetary carrier (1) and a support (2) disposed on the back side of the planetary carrier (1), characterized in that, The planetary carrier (1) has a main shaft (3) rotatably passing through its inner center. The outer wall of the planetary carrier (1) is fixed with a plurality of axially uniformly arranged curved strips (4). The side wall of the curved strips (4) is provided with a support rod (5). The support rod (5) is fixedly sleeved with an oiling roller (6). The inside of the curved strips (4) is provided with a reciprocating drive mechanism for driving the oiling roller (6) to rotate.

2. The high-stability gearbox planetary carrier structure according to claim 1, characterized in that, The reciprocating drive mechanism includes a reciprocating screw (7), a strip hole (8) is provided inside the bent bar (4), a slider (9) is slidably passed through the inner wall of the strip hole (8), the slider (9) is threaded onto the outside of the reciprocating screw (7) through its internal reciprocating ball thread, the support rod (5) is rotatably provided on the side of the slider (9), and the rod wall of the reciprocating screw (7) is provided with a transmission mechanism for driving the reciprocating screw (7) to rotate.

3. The high-stability gearbox planetary carrier structure according to claim 2, characterized in that, The transmission mechanism includes a transmission shaft (10), and an mounting plate (11) is fixedly provided on the inner wall of the strip hole (8). The transmission shaft (10) is rotatably disposed in the mounting plate (11). A first bevel gear (12) is fixedly provided at one end of the transmission shaft (10) and the reciprocating screw (7). The two first bevel gears (12) are configured to cooperate. A second bevel gear (13) is fixedly provided at the other end of the transmission shaft (10). A drive bevel gear ring (14) is fixedly sleeved on the main shaft (3) and the outer wall. The second bevel gear (13) is configured to cooperate with the drive bevel gear ring (14).

4. The high-stability gearbox planetary carrier structure according to claim 1, characterized in that, The oiling roller (6) is a brush roller.

5. The high-stability gearbox planetary carrier structure according to claim 1, characterized in that, The curved bar (4) is fixed to the outer wall of the planetary carrier (1) by bolts.

6. The high-stability gearbox planetary carrier structure according to claim 1, characterized in that, The wall of the oiling roller (6) is in contact with the outer wall of the planetary carrier (1).

Citation Information

Patent Citations

  • Gear box planet carrier with lubricating oil collecting structure

    CN213744864U