Planet carrier fixing tool

By designing the rotating cavities, threaded columns, and adjusting bolts of the upper and lower positioning rings, the problems of cumbersome assembly and disassembly and insufficient freedom of the planetary carrier fixing fixture were solved, enabling rapid installation and stable fixing, and adapting to planetary gears of different specifications and thicknesses.

CN224150155UActive Publication Date: 2026-04-21SHANDONG CONNECTING ROD FACTORY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG CONNECTING ROD FACTORY CO LTD
Filing Date
2025-05-28
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing planetary carrier fixing fixture has a cumbersome assembly and disassembly process, is time-consuming and labor-intensive, and has limited flexibility, unable to adaptively adjust the distance between mounting brackets.

Method used

The design employs an upper and lower positioning ring. Rotating cavities are created on the upper and lower positioning rings, and a threaded post is fixedly installed on the top of the lower positioning ring. Adjusting bolts are installed inside the adjusting cavity, and the bottom of the rotating seat mates with the threaded sleeve, enabling quick installation and locking. Combined with the bearing, convex ring, and limit groove structure, the stability and practicality are improved.

Benefits of technology

It enables rapid installation and stable fixation of planetary gears, adapts to planetary gears of different specifications and thicknesses, and improves the stability and practicality of the tooling.

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Abstract

The utility model discloses a planet carrier fixing tool, which belongs to the technical field of planet carriers and comprises an upper positioning ring and a lower positioning ring which are mutually locked, a plurality of groups of mutually matched rotating cavities are arranged on the upper positioning ring and the lower positioning ring, and planet gears are movably mounted in the rotating cavities; a plurality of threaded columns are fixedly arranged at the top of the lower positioning ring, adjusting cavities are formed in the threaded columns, and adjusting bolts are installed in the adjusting cavities in a threaded mode; a plurality of rotating seats are movably mounted on the upper positioning ring, screw sleeves matched with the threaded columns are fixedly arranged at the bottoms of the rotating seats, and adjusting bolts penetrate through the threaded columns and abut against the bottoms of the screw sleeves. The planetary gears can be quickly mounted through the upper positioning ring and the lower positioning ring, when the thicknesses of the planetary gears are different, the distance between the upper positioning ring and the lower positioning ring can be adjusted through the adjusting bolt, and the rotating seat and the threaded sleeve are rotated through the inner groove during mounting, so that the threaded column is quickly locked; the design improves stability and practicability.
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Description

Technical Field

[0001] This utility model relates to the field of planetary carrier technology, specifically a planetary carrier fixing fixture. Background Technology

[0002] Planetary gears are gear systems that, in addition to rotating around their own axis of rotation like top gears, also have their axis of rotation rotate around the axes of other gears along with the planet carrier. They mainly consist of a planet carrier, planet gears, a sun gear, and an internal ring gear. During assembly, multiple planet gears are mounted on the planet carrier, with the outer sides of the planet gears meshing with the internal ring gear and the inner sides of the planet gears meshing with the sun gear.

[0003] Patent application CN220260280U discloses a planetary carrier fixing fixture. It includes a fixed platform, a cylinder, and a rotating shaft. A connecting cover is provided at the bottom of the fixed platform, and a vertical frame is provided at the top. The cylinder is mounted on the vertical frame, and its output end is rotatably connected to a fixed plate via a bearing. A bearing plate is provided on the fixed platform, and the bearing plate and the fixed plate are coaxially arranged. The rotating shaft is installed at the bottom of the bearing plate, and its bottom end passes through the fixed platform and is rotatably connected to the inner wall of the connecting cover. A rotating component and a limiting component are provided inside the connecting cover. This utility model, with its rotating and limiting components, utilizes the cooperation of a guide telescopic rod, a toothed plate, a threaded clamping rod, a crank handle, and a threaded sleeve to drive the toothed plate closer to the gear disk until the toothed blocks on the toothed plate insert into the gap of the gear disk. The rotating shaft then limits the position of the bearing plate, thereby enabling stable machining of specific surfaces of the planetary carrier.

[0004] However, the above-disclosed planetary carrier fixing fixture assembly and disassembly process is cumbersome, time-consuming and labor-intensive, and has limited flexibility, and cannot adaptively adjust the distance between the mounting brackets. Utility Model Content

[0005] The purpose of this utility model is to provide a planetary carrier fixing tool to solve the problems of cumbersome assembly and disassembly processes, time and labor costs, limited freedom of movement, and inability to adaptively adjust the distance between mounting brackets in existing planetary carrier fixing tools.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a planetary carrier fixing fixture, comprising an upper positioning ring and a lower positioning ring that are locked to each other, wherein multiple sets of mutually cooperating rotating cavities are formed on the upper and lower positioning rings, and planetary gears are movably installed in the rotating cavities; multiple sets of threaded columns are fixedly provided on the top of the lower positioning ring, and an adjustment cavity is formed inside the threaded column, wherein an adjustment bolt is threadedly installed in the adjustment cavity; multiple sets of rotating seats are movably installed on the upper positioning ring, and a threaded sleeve that cooperates with the threaded column is fixedly provided at the bottom of the rotating seat, wherein the adjustment bolt passes through the threaded column and abuts against the bottom of the threaded sleeve.

[0007] As a further improvement of this utility model, a bearing is installed inside the rotating cavity.

[0008] As a further embodiment of this utility model: the upper positioning ring is provided with a mounting cavity that cooperates with the rotating seat, the outer wall of the rotating seat is provided with a protruding ring, and the inner wall of the mounting cavity is provided with a limiting groove that cooperates with the protruding ring.

[0009] As a further improvement of this utility model: the top of the upper positioning ring is provided with multiple sets of mounting grooves, a support frame is installed between the mounting grooves, and multiple sets of nuts are threaded onto the support frame.

[0010] As a further improvement of this utility model, the top of the rotating seat is provided with an inner groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model allows for quick installation of planetary gears via an upper and lower positioning ring. When the specifications and thickness of the planetary gears are different, the distance between the upper and lower positioning rings can be adjusted by adjusting the bolts. During installation, the rotating seat and the threaded sleeve are rotated through the inner groove, thereby quickly locking the threaded column. This design improves the stability and practicality of the planetary carrier fixing fixture. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Upper positioning ring; 2. Lower positioning ring; 3. Rotating cavity; 4. Bearing; 5. Planetary gear; 6. Threaded column; 7. Adjusting cavity; 8. Adjusting bolt; 9. Mounting cavity; 10. Rotating seat; 11. Screw sleeve; 12. Inner groove; 13. Raised ring; 14. Limiting groove; 15. Mounting groove; 16. Support frame; 17. Nut. Detailed Implementation

[0018] The following will be combined with the appendix Figures 1 to 2 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] This utility model provides an improved planetary carrier fixing fixture, such as... Figures 1-2 As shown, it includes an upper positioning ring 1 and a lower positioning ring 2 that are locked together. Multiple sets of rotating cavities 3 are formed on the upper positioning ring 1 and the lower positioning ring 2, and planetary gears 5 are movably installed in the rotating cavities 3. Multiple sets of threaded columns 6 are fixedly provided on the top of the lower positioning ring 2. Adjustment cavities 7 are formed inside the threaded columns 6, and adjustment bolts 8 are threadedly installed in the adjustment cavities 7. Multiple sets of rotating seats 10 are movably installed on the upper positioning ring 1. A threaded sleeve 11 that mates with the threaded column 6 is fixedly provided at the bottom of the rotating seat 10. The adjustment bolt 8 passes through the threaded column 6 and abuts against the bottom of the threaded sleeve 11.

[0020] This utility model allows for the quick installation of planetary gears 5 using upper positioning ring 1 and lower positioning ring 2. When the specifications and thickness of planetary gears 5 are different, the distance between upper positioning ring 1 and lower positioning ring 2 can be adjusted by adjusting bolt 8. During installation, the rotating seat 10 and threaded sleeve 11 are rotated by the inner groove 12, thereby quickly locking the threaded column 6. This design improves the stability and practicality of the planetary carrier fixing fixture.

[0021] See appendix Figure 1 -Appendix Figure 2 Bearing 4 is installed inside the rotating cavity 3.

[0022] In this embodiment: In order to ensure that the planetary gear 5 meshes and rotates smoothly, a bearing 4 structure is designed.

[0023] See appendix Figure 2 The upper positioning ring 1 has an installation cavity 9 that mates with the rotating seat 10. The outer wall of the rotating seat 10 has a protruding ring 13, and the inner wall of the installation cavity 9 has a limiting groove 14 that mates with the protruding ring 13.

[0024] In this embodiment: When installing the threaded column 6, in order to ensure that the rotating seat 10 can rotate freely relative to the mounting cavity 9, a structure of mutually cooperating convex ring 13 and limiting groove 14 is designed.

[0025] See appendix Figure 1 -Appendix Figure 2 The top of the upper positioning ring 1 has multiple sets of mounting grooves 15, and a support frame 16 is installed between the mounting grooves 15. Multiple sets of nuts 17 are threaded onto the support frame 16.

[0026] In this embodiment: In order to install the external drive device onto the upper positioning ring 1 and thus synchronously drive multiple sets of planetary gears 5 to rotate, a detachable support frame 16 structure is designed.

[0027] See appendix Figure 1 The top of the rotating seat 10 has an inner groove 12.

[0028] In this embodiment: In order to facilitate the rotation of the rotating seat 10 by an external device, such as a hex wrench, an inner groove 12 structure is designed.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A planetary carrier fixture, characterized by: The device includes an upper positioning ring (1) and a lower positioning ring (2) that are locked together. The upper positioning ring (1) and the lower positioning ring (2) have multiple sets of mutually cooperating rotating cavities (3). Planetary gears (5) are movably installed in the rotating cavities (3). Multiple sets of threaded columns (6) are fixedly provided on the top of the lower positioning ring (2). An adjustment cavity (7) is provided inside the threaded column (6). An adjustment bolt (8) is threadedly installed in the adjustment cavity (7). Multiple sets of rotating seats (10) are movably installed on the upper positioning ring (1). A threaded sleeve (11) that cooperates with the threaded column (6) is fixedly provided at the bottom of the rotating seat (10). The adjustment bolt (8) passes through the threaded column (6) and abuts against the bottom of the threaded sleeve (11).

2. The planetary carrier fixture of claim 1, wherein: The rotating cavity (3) is equipped with a bearing (4).

3. The planetary carrier fixture of claim 1, wherein: The upper positioning ring (1) has an installation cavity (9) that cooperates with the rotating seat (10). The outer wall of the rotating seat (10) is provided with a protruding ring (13), and the inner wall of the installation cavity (9) is provided with a limiting groove (14) that cooperates with the protruding ring (13).

4. The planetary carrier fixture of claim 1, wherein: The top of the upper positioning ring (1) has multiple sets of mounting grooves (15), and a support frame (16) is installed between the mounting grooves (15). Multiple sets of nuts (17) are threaded onto the support frame (16).

5. The planetary carrier fixture of claim 1, wherein: The top of the rotating seat (10) is provided with an inner groove (12).

Citation Information

Patent Citations

  • Planet carrier fixing tool

    CN220260280U