Wear-resistant anti-jamming integrated lubrication star wheel speed reducer

Abstract

The utility model provides a wear-resistant anti-jamming integrated lubrication star wheel speed reducer, which relates to the technical field of mechanical transmission and comprises an input flange and an output flange, the output flange is fixedly connected to the right side of the input flange, and the middle of the input flange is rotatably connected with an input shaft. When the star wheel speed reducer runs, the planet gear rotates to drive the planet arm frame and the output shaft to rotate, the pushing block on the planet arm frame rotates along with the planet arm frame in the rotating process, and when the pushing block makes contact with the semi-circular top block, the pushing block can push the semi-circular top block to drive the sliding pressing plate to slide, so that oil storage cotton is extruded, and oil storage is achieved. By means of the structure, supply of the lubricating oil is associated with the running state of equipment, the higher the running speed of the equipment is, the higher the lubricating frequency is, the lubricating effect of key transmission parts is effectively guaranteed, the abrasion and blockage conditions of the star wheel speed reducer are greatly reduced, and the service life of the star wheel speed reducer is prolonged. And the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, and in particular to a wear-resistant, anti-jamming integrated lubrication star wheel reducer. Background Technology

[0002] A star gear reducer is a mechanical device that achieves speed reduction through cycloidal pin gear meshing. Its core structure consists of an eccentric sleeve, a cycloidal wheel, and a pin gear housing. The input shaft drives the eccentric sleeve to rotate, which in turn drives the cycloidal wheel to perform eccentric motion. The meshing between the cycloidal wheel and the pin teeth inside the pin gear housing converts a high-speed, low-torque input into a low-speed, high-torque output. Due to its large transmission ratio, high transmission efficiency, and compact structure, it is widely used in automated production lines, lifting and conveying equipment, food processing machinery, and other fields, playing a crucial role in reducing speed and increasing torque to meet the operational requirements of equipment.

[0003] The existing wear-resistant, anti-jamming integrated lubrication star wheel reducer has the following shortcomings:

[0004] Firstly, the lubrication systems of traditional star gear reducers are mostly passive drip or splash lubrication, unable to dynamically supply lubricating oil according to the equipment's operating status. During long-term operation, critical transmission components such as planetary gears cannot receive continuous and sufficient lubrication, leading to increased friction, severe wear, and ultimately, jamming, significantly shortening the equipment's service life. Secondly, the lubrication components of existing star gear reducers are inconvenient to install and maintain, often employing a built-in fixed structure. When replacing lubrication components or adding lubricating oil, it often requires disassembling a large number of parts, which is cumbersome, time-consuming, and labor-intensive, increasing equipment maintenance costs and downtime. Furthermore, the design of some lubrication component oil inlets is unreasonable, making it difficult to add lubricating oil and affecting the normal use of the equipment. Utility Model Content

[0005] This invention proposes a wear-resistant and anti-jamming integrated lubrication star wheel reducer, which achieves precise lubrication on demand through a dynamic lubrication structure, effectively reducing wear and jamming. At the same time, it adopts a convenient and fixed lubrication component structure, which facilitates maintenance and lubricant addition, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wear-resistant, anti-jamming integrated lubrication planetary gear reducer, comprising an input flange and an output flange, wherein the output flange is fixedly connected to the right side of the input flange, an input shaft is rotatably connected to the middle of the input flange, an output shaft is rotatably connected to the middle of the output flange, a planetary arm carrier is fixedly connected to the left end of the output shaft, four push blocks are fixedly connected to the left side of the planetary arm carrier in a circular array, three planetary gears are movably connected to the middle of the planetary arm carrier in a circular array, a gear ring is meshed with the outer surfaces of the three planetary gears, the outer surface of the gear ring is fixedly connected to the left side of the inner surface of the output flange, an input sun gear is fixedly connected to the right end of the input shaft, the outer surface of the input sun gear is simultaneously meshed with the outer surfaces of the three planetary gears, and a lubrication assembly is provided on the right side of the inner surface of the input flange.

[0007] The lubrication assembly includes an annular frame that is slidably engaged with the right side of the inner surface of the input flange. An annular groove is formed inside the annular frame, and an oil reservoir is fixedly connected inside the annular groove. Four sliding pressure plates are slidably connected in an annular array on the inner surface of the annular groove. A semi-circular dome block is fixedly connected to the side of each sliding pressure plate. The side of the semi-circular dome block away from the sliding pressure plate extends through to the inner side of the annular frame. Four oil outlets are formed in an annular array on the right side of the annular frame. The right end of each oil outlet faces the planetary gear, and the left end of each oil outlet extends through to the inner surface of the annular groove.

[0008] Preferably, a return spring is fixedly connected to the middle of the side of the sliding pressure plate away from the semi-circular dome block, and a connecting baffle is fixedly connected to the end of the return spring away from the sliding pressure plate, and the connecting baffle is fixedly connected to the inner surface of the annular groove.

[0009] Preferably, a limiting groove is formed on the top of the outer surface of the ring frame, a limiting plate is fixedly connected to the top of the input flange, and the bottom end of the limiting plate extends through the inner surface of the limiting groove.

[0010] Preferably, an oil injection nozzle is fixedly connected to the middle of the limiting plate, and the bottom end of the oil injection nozzle extends into the interior of the annular groove.

[0011] Preferably, bearings are fixedly connected to the outer surfaces of both the input shaft and the output shaft, and the outer rings of the two bearings are fixedly connected to the inner surfaces of the input flange and the output flange, respectively.

[0012] Preferably, both the input shaft and the output shaft are provided with sealing rings on their outer surfaces, and the two sealing rings are respectively provided on the left side of the input flange and the right side of the output flange.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. In this utility model, dynamic on-demand lubrication is achieved through the mutual cooperation between the planetary arm, push block, semi-circular dome block, sliding pressure plate, oil storage cotton, and oil outlet. When the star gear reducer is running, the rotation of the planetary gear drives the planetary arm and output shaft to rotate. During the rotation of the planetary arm, the push block on it rotates accordingly. When the push block contacts the semi-circular dome block, it pushes the semi-circular dome block to drive the sliding pressure plate to slide, thereby squeezing the oil storage cotton and causing the lubricating oil in the oil storage cotton to be discharged from the oil outlet to lubricate the planetary gear. This structure makes the supply of lubricating oil related to the operating state of the equipment. The faster the equipment operates, the higher the lubrication frequency, effectively ensuring the lubrication effect of key transmission components, greatly reducing the wear and jamming of the star gear reducer, and extending the service life of the equipment.

[0015] 2. In this utility model, the mutual cooperation between the limiting plate, the limiting groove, and the oil injection nozzle enables convenient installation and maintenance of the lubrication assembly. When installing the lubrication assembly, the annular frame is placed inside the input flange, and the limiting plate is fixed to the top of the input flange with screws. The bottom of the limiting plate is inserted into the limiting groove, which completes the quick fixing of the lubrication assembly without complicated disassembly, reducing the installation difficulty and maintenance time cost. At the same time, the oil injection nozzle in the middle of the limiting plate is inserted into the annular groove, which makes it convenient for operators to directly add lubricating oil to the oil storage cotton, avoiding the problem of difficult addition caused by unreasonable oil injection port design in traditional structures, and improving the convenience of equipment maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the wear-resistant, anti-jamming integrated lubrication star wheel reducer of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure on the right side of the star wheel reducer of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the star wheel reducer of this utility model on the left side;

[0019] Figure 4 This is a cross-sectional structural diagram of the lubrication component of this utility model.

[0020] Legend: 1. Input flange; 2. Output flange; 3. Input shaft; 4. Output shaft; 5. Planetary arm carrier; 51. Push block; 6. Planetary gear; 7. Gear ring; 8. Input sun gear; 9. Lubrication assembly; 91. Annular frame; 92. Limiting slot; 93. Annular groove; 94. Oil reservoir; 95. Sliding pressure plate; 96. Semi-domed block; 97. Oil outlet; 98. Connecting baffle; 99. Return spring; 10. Limiting plate; 11. Oil nozzle; 12. Bearing; 13. Sealing ring; 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 described in these embodiments 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 Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a technical solution: it includes an input flange 1 and an output flange 2. The output flange 2 is fixedly connected to the right side of the input flange 1. An input shaft 3 is rotatably connected to the middle of the input flange 1, and an output shaft 4 is rotatably connected to the middle of the output flange 2. A planetary arm carrier 5 is fixedly connected to the left end of the output shaft 4. Four push blocks 51 are fixedly connected to the left side of the planetary arm carrier 5 in an annular array. Three planetary gears 6 are movably connected to the middle of the planetary arm carrier 5 in an annular array. A gear ring 7 is meshed with the outer surfaces of the three planetary gears 6. The outer surface of the gear ring 7 is fixedly connected to the left side of the inner surface of the output flange 2. An input sun gear 8 is fixedly connected to the right end of the input shaft 3. The outer surface of the input sun gear 8 is simultaneously meshed with the outer surfaces of the three planetary gears 6. A lubrication assembly 9 is provided on the right side of the inner surface of the input flange 1. The lubrication assembly 9 includes an annular frame. 91. The annular frame 91 is slidably engaged with the right side of the inner surface of the input flange 1. The annular frame 91 has an annular groove 93 inside. An oil storage cotton 94 is fixedly connected inside the annular groove 93. Four sliding pressure plates 95 are slidably connected in an annular array on the inner surface of the annular groove 93. A semi-circular dome block 96 is fixedly connected to the side of the sliding pressure plate 95. The side of the semi-circular dome block 96 away from the sliding pressure plate 95 extends through to the inner side of the annular frame 91. Four oil outlets 97 are annularly arranged on the right side of the annular frame 91. The right end of the oil outlet 97 faces the planetary gear 6. The left end of the oil outlet 97 extends through to the inner surface of the annular groove 93. A return spring 99 is fixedly connected to the middle of the side of the sliding pressure plate 95 away from the semi-circular dome block 96. A connecting baffle 98 is fixedly connected to the end of the return spring 99 away from the sliding pressure plate 95. The connecting baffle 98 is fixedly connected to the inner surface of the annular groove 93.

[0024] The overall effect of Embodiment 1 is as follows: When the star gear reducer is working, the input shaft 3 drives the input sun gear 8 to rotate, and the input sun gear 8 drives the planetary gear 6 to perform planetary motion in the gear ring 7. The motion of the planetary gear 6 drives the planetary arm 5 to rotate, and the push block 51 on the planetary arm 5 rotates accordingly. As the push block 51 rotates, it will periodically contact the semi-circular dome block 96 and push the semi-circular dome block 96 to slide into the annular groove 93. The semi-circular dome block 96 drives the sliding pressure plate 95 to compress the return spring 99. The sliding pressure plate 95 squeezes the oil storage cotton 94, so that the lubricating oil in the oil storage cotton 94 is discharged from the oil outlet 97, accurately lubricating the key transmission components such as the planetary gear 6. The faster the equipment operates, the faster the push block 51 rotates, the higher the frequency of squeezing the semi-circular dome block 96, and the more lubricating oil is supplied. Dynamic and precise lubrication is achieved according to the actual operating state of the equipment, effectively reducing the wear and jamming of components, and improving the service life and operational stability of the star gear reducer.

[0025] Example 2: As Figure 3 and Figure 4 As shown, this utility model provides a technical solution: a limiting groove 92 is opened on the top of the outer surface of the ring frame 91, a limiting plate 10 is fixedly connected to the top of the input flange 1, the bottom end of the limiting plate 10 penetrates to the inner surface of the limiting groove 92, an oil injection nozzle 11 is fixedly connected to the middle of the limiting plate 10, the bottom end of the oil injection nozzle 11 penetrates to the interior of the annular groove 93, bearings 12 are fixedly connected to the outer surfaces of the input shaft 3 and the output shaft 4, the outer rings of the two bearings 12 are fixedly connected to the inner surfaces of the input flange 1 and the output flange 2 respectively, and sealing rings 13 are provided on the outer surfaces of the input shaft 3 and the output shaft 4 respectively, with the two sealing rings 13 respectively located on the left side of the input flange 1 and the right side of the output flange 2;

[0026] The overall effect of Embodiment 2 is as follows: When installing the lubrication assembly 9, the annular frame 91 is slidably inserted along the right side of the inner surface of the input flange 1, aligning the limiting slot 92 with the limiting plate 10. The limiting plate 10 is then fixed to the top of the input flange 1 with screws, and the bottom end of the limiting plate 10 is engaged with the limiting slot 92, quickly completing the positioning and fixing of the lubrication assembly 9. Compared with the traditional built-in fixing structure, this significantly simplifies the installation process and reduces the difficulty of installation and maintenance. The grease nipple 11 is inserted into the annular groove 93. When lubricating oil needs to be added, the operator can directly inject lubricating oil into the oil reservoir 94 through the grease nipple 11, making the operation convenient and efficient. At the same time, the bearing 12 ensures the stable rotation of the input shaft 3 and the output shaft 4, reducing friction and shaking during rotation. The sealing ring 13 seals the left side of the input flange 1 and the right side of the output flange 2 respectively, effectively preventing lubricating oil leakage and the entry of external dust and impurities into the reducer, further improving the stability and reliability of the equipment and reducing the maintenance frequency.

[0027] The working principle of the entire device is as follows: When the device is running, power is input from the input shaft 3 on the input flange 1. The input shaft 3 drives the input sun gear 8 to rotate. The input sun gear 8 meshes with the planetary gear 6, so that the planetary gear 6 rotates on its own axis and revolves within the gear ring 7. The revolving motion of the planetary gear 6 drives the planetary arm 5 to rotate, and then outputs the decelerated power from the output flange 2 through the output shaft 4.

[0028] During power transmission, as the planetary arm 5 rotates, the four evenly distributed push blocks 51 on it move in a circular motion around the axis of the output shaft 4. When the push block 51 rotates to contact the semi-circular dome block 96, the arc-shaped surface of the push block 51 fits against the curved surface of the semi-circular dome block 96. As the push block 51 continues to rotate, the semi-circular dome block 96 is pushed and slides into the annular groove 93. The semi-circular dome block 96 drives the sliding pressure plate 95 to compress the return spring 99, and the sliding pressure plate 95 squeezes the oil storage cotton 94 in the annular groove 93. When the oil-retaining cotton 94 is squeezed, it squeezes out the absorbed lubricating oil. The lubricating oil is sprayed through the oil outlet 97 to the meshing parts of the planetary gear 6 with the input sun gear 8 and the gear ring 7, as well as the connection between the planetary gear 6 and the planetary arm carrier 5, and other key friction parts to achieve precise lubrication. When the push block 51 rotates past the semi-circular dome block 96, under the elastic force of the return spring 99, the sliding pressure plate 95 drives the semi-circular dome block 96 to return to its original state, and the oil-retaining cotton 94 returns to its original state and reabsorbs lubricating oil, waiting for the next squeeze to release oil.

[0029] Regarding equipment maintenance, when lubricating oil needs to be replenished, operators do not need to disassemble a large number of parts. They only need to open the sealing cap of the oil inlet 11 and use the oiling equipment to inject lubricating oil into the oil storage cotton 94 in the annular groove 93 through the oil inlet 11. If the lubrication component 9 needs to be replaced, unscrew the screws of the fixing limit plate 10, pull the limit plate 10 out of the limit slot 92, and the annular frame 91 can be taken out from the right side of the inner surface of the input flange 1. The replacement operation of the lubrication component 9 can be completed conveniently and quickly, effectively reducing equipment maintenance costs and downtime, and improving equipment utilization efficiency.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wear-resistant, anti-jamming integrated lubrication star wheel reducer, comprising an input flange (1) and an output flange (2), wherein the output flange (2) is fixedly connected to the right side of the input flange (1), characterized in that: An input shaft (3) is rotatably connected to the middle of the input flange (1), and an output shaft (4) is rotatably connected to the middle of the output flange (2). A planetary arm carrier (5) is fixedly connected to the left end of the output shaft (4). Four push blocks (51) are fixedly connected to the left side of the planetary arm carrier (5) in an annular array. Three planetary gears (6) are movably connected to the middle annular array of the planetary arm carrier (5). A gear ring (7) is meshed with the outer surfaces of the three planetary gears (6). The outer surface of the gear ring (7) is fixedly connected to the left side of the inner surface of the output flange (2). An input sun gear (8) is fixedly connected to the right end of the input shaft (3). The outer surface of the input sun gear (8) is simultaneously meshed with the outer surfaces of the three planetary gears (6). A lubrication assembly (9) is provided on the right side of the inner surface of the input flange (1). The lubrication assembly (9) includes an annular frame (91), which is slidably engaged with the right side of the inner surface of the input flange (1). An annular groove (93) is provided inside the annular frame (91), and an oil storage cotton (94) is fixedly connected inside the annular groove (93). Four sliding pressure plates (95) are slidably connected in an annular array on the inner surface of the annular groove (93). A semi-circular dome block (96) is fixedly connected to the side of the sliding pressure plate (95). The side of the semi-circular dome block (96) away from the sliding pressure plate (95) extends through to the inner side of the annular frame (91). Four oil outlets (97) are provided in an annular array on the right side of the annular frame (91). The right end of the oil outlet (97) faces the planetary gear (6), and the left end of the oil outlet (97) extends through to the inner surface of the annular groove (93).

2. The wear-resistant, anti-jamming integrated lubrication star wheel reducer according to claim 1, characterized in that: A return spring (99) is fixedly connected to the middle of the side of the sliding pressure plate (95) away from the semi-circular block (96). A connecting baffle (98) is fixedly connected to the end of the return spring (99) away from the sliding pressure plate (95). The connecting baffle (98) is fixedly connected to the inner surface of the annular groove (93).

3. The wear-resistant, anti-jamming integrated lubrication star wheel reducer according to claim 1, characterized in that: A limiting groove (92) is provided on the top of the outer surface of the ring frame (91), and a limiting plate (10) is fixedly connected to the top of the input flange (1). The bottom end of the limiting plate (10) extends through to the inner surface of the limiting groove (92).

4. The wear-resistant, anti-jamming integrated lubrication star wheel reducer according to claim 3, characterized in that: An oil injection nozzle (11) is fixedly connected to the middle of the limiting plate (10), and the bottom end of the oil injection nozzle (11) extends into the interior of the annular groove (93).

5. The wear-resistant, anti-jamming integrated lubrication star wheel reducer according to claim 1, characterized in that: The input shaft (3) and the output shaft (4) are both fixedly connected to bearings (12), and the outer rings of the two bearings (12) are fixedly connected to the inner surfaces of the input flange (1) and the output flange (2), respectively.

6. The wear-resistant, anti-jamming integrated lubrication star wheel reducer according to claim 1, characterized in that: The outer surfaces of the input shaft (3) and the output shaft (4) are provided with sealing rings (13), and the two sealing rings (13) are respectively located on the left side of the input flange (1) and the right side of the output flange (2).

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