Modularized inner star wheel
The modular design and limit hole bolt connection simplify the disassembly and assembly process of the inner star wheel, solving the problem of complex disassembly and assembly in the existing technology, and realizing efficient maintenance and replacement. The protective cover ensures the reliability of disassembly and assembly.
Patent Information
- Application Number
- CN202520701233.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-04-15
AI Technical Summary
The existing internal star wheel has a complicated disassembly and assembly process, resulting in low maintenance and replacement efficiency.
A modular inner star wheel was designed. By setting rectangular holes and limiting holes on the planetary column, combined with the connection method of bolts and nuts, the inner star wheel can be easily installed and disassembled. It is also equipped with a protective cover to prevent dust from affecting the installation and disassembly.
The process of disassembling and assembling the inner star wheel has been simplified, improving maintenance and replacement efficiency. The protective cover prevents dust from affecting the product, further enhancing its performance.
Smart Images

Figure CN223690294U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of inner star wheel, especially to a modularization inner star wheel. BACKGROUND
[0002] The inner star wheel is an important component of the planetary gear transmission mechanism, which is usually a gear with its tooth surface inside other gears. The inner star wheel, together with the planetary gear and the sun gear, forms a planetary gear system. The inner star wheel works together with the planetary gear to achieve power transmission and speed change. Then, through the action of the inner star wheel, the direction of power transmission can be changed to meet different application requirements. Moreover, the structural design of the inner star wheel enables it to withstand large loads and has good torque amplification capability.
[0003] In the prior art, the inner star wheel is usually installed on the planet carrier or planet column and then connected with the planetary gear and the sun gear. However, the disassembly and assembly process is complex, and the efficiency is low during maintenance and replacement, so a modularization inner star wheel is needed. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving the problem of low efficiency during maintenance and replacement due to complex disassembly and assembly process of the existing equipment, and proposes a modularization inner star wheel.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a modularization inner star wheel, comprising a first vertical plate and a second vertical plate, the outer wall of the second vertical plate is rotatably connected with a first connecting column, the outer wall of the first connecting column is fixedly installed with a planet carrier, the outer wall of the planet carrier is fixedly installed with four planet columns, three rectangular holes are formed in the outer wall of each of the four planet columns, a bolt is fixedly installed at the inner wall bottom of each of the rectangular holes, an inner star wheel body is movably sleeved on the outer surface wall of each of the four planet carriers, two rectangular blocks are fixedly installed on the inner surface wall of each of the four inner star wheel bodies, and the outer surface wall of each of the rectangular blocks is movably inserted into the inside of each of the rectangular holes.
[0006] Preferably, a limiting hole is formed in the top of each of the rectangular blocks, and the outer surface wall of each of the bolts is movably inserted into the inside of each of the limiting holes.
[0007] Preferably, a nut is threadedly connected to the outer surface wall of each of the bolts, and the bottom of each of the nuts is in contact with the top of each of the rectangular blocks.
[0008] Preferably, a fixing hole is formed in the top of each of the four planet columns, and a planetary gear is meshingly connected to the outer surface wall of each of the four inner star wheel bodies.
[0009] Preferably, the inner walls of the four fixing holes are threadedly connected with screw rods, and the top of the four screw rods is fixedly installed with protective covers.
[0010] Preferably, the outer wall of the first vertical plate is rotatably connected with a second connecting column, the outer wall of the second connecting column is fixedly installed with a sun gear, and the outer wall of the sun gear is meshingly connected with the outer walls of the four planetary gears.
[0011] Preferably, the outer walls of the four planetary gears are meshingly connected with a ring gear.
[0012] Compared with the prior art, the module inner star wheel has the advantages and positive effects that,
[0013] 1. In the module inner star wheel, the four inner star wheel bodies are sleeved on the four planetary columns, a plurality of rectangular blocks are correspondingly sleeved on a plurality of bolts through a plurality of limiting holes, and the inner star wheel bodies are installed on the planetary columns by rotating downward along the plurality of bolts through the action of a plurality of nuts.
[0014] 2. In the module inner star wheel, the four protective covers are overlapped on one end of the four planetary columns through the action of the four screw rods and the four fixing holes, and a protective effect is formed on the plurality of bolts and nuts, so that the subsequent disassembly effect is not affected by dust and foreign matters attached thereon, and the use effect of the module inner star wheel is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A perspective view of the module inner star wheel is provided for the utility model;
[0016] Figure 2 A rear view of the module inner star wheel is provided for the utility model;
[0017] Figure 3 A partially exploded view of the module inner star wheel is provided for the utility model;
[0018] Figure 4 A partially expanded schematic view of the module inner star wheel is provided for the utility model.
[0019] LEGEND:
[0020] 1. first vertical plate; 2. second vertical plate; 3. first connecting column; 4. planet carrier; 5. planetary column; 6. rectangular hole; 7. bolt; 8. inner star wheel body; 9. rectangular block; 10. limiting hole; 11. nut; 12. fixing hole; 13. planetary gear; 14. screw rod; 15. protective cover; 16. second connecting column; 17. sun gear; 18. ring gear. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1: As Figures 1-4 As shown, this utility model provides a modular inner star wheel, including a first upright plate 1 and a second upright plate 2. A first connecting column 3 is rotatably connected to one side of the outer wall of the second upright plate 2. A planetary carrier 4 is fixedly installed on one side of the outer wall of the first connecting column 3. Four planetary columns 5 are fixedly installed on one side of the outer wall of the planetary carrier 4. Three rectangular holes 6 are opened on one side of the outer wall of each of the four planetary columns 5. Bolts 7 are fixedly installed on the bottom of the inner walls of the multiple rectangular holes 6. Inner star wheel bodies 8 are movably fitted on the outer walls of the four planetary carriers 4. The inner star wheel bodies 8 are... Two rectangular blocks 9 are fixedly installed on each of the outer walls, and the outer walls of multiple rectangular blocks 9 are movably inserted into the interior of multiple rectangular holes 6. Each of the multiple rectangular blocks 9 has a limiting hole 10 on its top, and the outer walls of multiple bolts 7 are movably inserted into the interior of multiple limiting holes 10. Each of the multiple bolts 7 has a nut 11 threadedly connected to its outer wall, and the bottom of each of the multiple nuts 11 contacts the top of the multiple rectangular blocks 9. Each of the four planetary column 5 has a fixing hole 12 on its top, and the outer walls of the four inner planetary wheel bodies 8 are meshed with planetary wheels 13.
[0024] The effect achieved by the whole embodiment 1 is that, since three rectangular holes 6 are arranged on the outer wall of each of the four planetary columns 5, three rectangular blocks 9 are arranged on the inner wall of each of the four inner planetary bodies 8, a limiting hole 10 is arranged on the top of each of the rectangular blocks 9, the four inner planetary bodies 8 are sleeved on the four planetary columns 5, each of the rectangular blocks 9 is located in each of the rectangular holes 6, each of the rectangular blocks 9 is sleeved on the bolt 7 installed inside each of the rectangular holes 6 through the limiting hole 10, a limiting effect is achieved, then the inner planetary body 8 is installed on the planetary column 5 by rotating the plurality of bolts 7 downward through the plurality of nuts 11 until the bottom of each of the nuts 11 contacts the top of each of the rectangular blocks 9, the inner planetary body 8 is convenient to disassemble and replace alone when the inner planetary body 8 needs to be maintained and replaced, the maintenance efficiency is high, the outer wall of each of the planetary columns 5 is meshed and connected with the planetary wheel 13, the sun wheel 17 is meshed and connected between the four planetary wheels 13, the sun wheel 17 is rotationally connected to the first vertical plate 1 through the second connecting column 16, the outer wall of the four planetary wheels 13 is meshed and connected with the gear ring 18, so that the sun wheel 17, the four planetary wheels 13 and the gear ring 18 are driven to rotate by the external driving device, the planetary carrier 4 and the first connecting column 3 are driven to rotate, and the use effect of the modular inner planetary wheel is improved.
[0025] Embodiment 2: as shown in Figures 2-4 the inner wall of each of the four fixing holes 12 is threadedly connected with the screw rod 14, the top of each of the four screw rods 14 is fixedly installed with the protective cover 15, the outer wall of the first vertical plate 1 is rotationally connected with the second connecting column 16, the outer wall of the second connecting column 16 is fixedly installed with the sun wheel 17, and the outer wall of the sun wheel 17 is meshed and connected with one side of the outer wall of the four planetary wheels 13, and the outer wall of the four planetary wheels 13 is meshed and connected with the gear ring 18.
[0026] The effect achieved by the whole embodiment 2 is that, the fixing hole 12 is arranged on the top of each of the four planetary columns 5, the four protective covers 15 are threadedly connected in the four fixing holes 12 through the screw rods 14 installed on the bottom of the four protective covers 15, the four protective covers 15 cover the four planetary columns 5, the plurality of bolts 7 and the plurality of nuts 11 are covered, and a protective effect is formed, dust or foreign matter is effectively prevented from falling on the four planetary columns 5 during use, the efficiency of disassembling and replacing the four planetary columns 5 is improved, and the use effect of the modular inner planetary wheel is further improved.
[0027] Working principle: first, the first connecting column 3 is rotatably connected to one side of the second vertical plate 2, then the outer wall side of the first connecting column 3 is provided with a planet carrier 4, four planet columns 5 are installed on one side of the planet carrier 4, three rectangular holes 6 are formed in each planet column 5, four inner star wheel bodies 8 are inserted into the corresponding three rectangular holes 6 through the three rectangular blocks 9 installed on the inner wall thereof, the three rectangular blocks 9 are sleeved on the corresponding bolts 7 through the limiting holes 10 formed in the top thereof, and under the action of the plurality of nuts 11, the plurality of rectangular blocks 9 are limited in the plurality of rectangular holes 6, and the four inner star wheel bodies 8 are installed on the four planet columns 5, the dismounting process is simple, the corresponding inner star wheel body 8 can be dismounted and maintained, the efficiency is improved, the whole does not need to be dismounted, and the four protective covers 15 are threadedly connected in the four fixing holes 12 through the four screw rods 14, the protective cover 15 can form a protective effect on the plurality of bolts 7 and nuts 11, avoid dust adhering to affect the subsequent dismounting effect, then the first vertical plate 1 is rotatably connected to the outer wall side of the second connecting column 16, the sun gear 17 is installed on the outer wall side of the second connecting column 16, the outer wall of the sun gear 17 is engaged with the outer wall of the four planet gears 13, and the outer wall of the four planet gears 13 is engaged with the gear ring 18, so that the second connecting column 16 is driven to rotate through the external driving device, the sun gear 17, the four planet gears 13 and the gear ring 18 are driven to rotate, and the planet carrier 4 and the first connecting column 3 are driven to rotate, thereby improving the use effect of the modular inner star wheel.
[0028] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the present application.
Claims
1. A modular inner star wheel, comprising a first vertical plate (1) and a second vertical plate (2), characterized in that: The second vertical plate (2) is rotatably connected to a first connecting column (3) on one side of its outer wall. A planetary carrier (4) is fixedly installed on one side of the outer wall of the first connecting column (3). Four planetary columns (5) are fixedly installed on one side of the outer wall of the planetary carrier (4). Three rectangular holes (6) are opened on one side of the outer wall of each of the four planetary columns (5). Bolts (7) are fixedly installed at the bottom of the inner wall of each of the rectangular holes (6). Inner planetary wheel bodies (8) are movably fitted on the outer wall of each of the four planetary carriers (4). Two rectangular blocks (9) are fixedly installed on the inner surface of each of the four inner planetary wheel bodies (8). The outer surface of each of the rectangular blocks (9) is movably inserted into the interior of the rectangular holes (6).
2. The modular inner star wheel according to claim 1, characterized in that: Each of the rectangular blocks (9) has a limiting hole (10) on its top, and the outer walls of the bolts (7) are movably inserted into the interior of the limiting holes (10).
3. A modular inner star wheel according to claim 2, characterized in that: Nuts (11) are threaded onto the outer walls of the multiple bolts (7), and the bottoms of the multiple nuts (11) are in contact with the tops of the multiple rectangular blocks (9).
4. A modular inner star wheel according to claim 3, characterized in that: Each of the four planetary pillars (5) has a fixing hole (12) at its top, and each of the four inner planetary wheel bodies (8) has a planetary wheel (13) meshing with its outer wall.
5. A modular inner star wheel according to claim 4, characterized in that: The inner walls of the four fixing holes (12) are all threaded with screws (14), and the tops of the four screws (14) are all fixedly installed with protective covers (15).
6. A modular inner star wheel according to claim 5, characterized in that: A second connecting column (16) is rotatably connected to one side of the outer wall of the first upright plate (1). A sun gear (17) is fixedly installed on one side of the outer wall of the second connecting column (16), and the outer wall of the sun gear (17) meshes with one side of the outer wall of the four planet gears (13).
7. A modular inner star wheel according to claim 6, characterized in that: A gear ring (18) is meshed between the outer walls of the four planetary gears (13).