Worm and worm gear speed reducer convenient to lubricate
By introducing a material box and a coating cotton block structure into the worm gear reducer, automatic application and cleaning of lubricating oil are achieved, solving the problems of inconvenient lubrication and pollution, and improving operating efficiency and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YONGCHUANG XINGSHENG TECH CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-05-05
AI Technical Summary
Existing worm gear reducers are not convenient to lubricate during use, and the lubricating oil is prone to splashing, oxidation, and contamination, which affects the operating performance.
A worm gear reducer with a material box, conveying pipe, threaded sleeve, and coating cotton block was designed. The automatic application and uniform distribution of lubricating oil are achieved by rotating the turntable. The coating cotton block can clean up oxidation contamination and is replaceable.
This improves lubrication efficiency, avoids oil splashing and oxidation contamination, and ensures smooth operation and clean protection of the worm gear.
Smart Images

Figure CN224201093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducers, and more specifically, to a worm gear reducer that is easy to lubricate. Background Technology
[0002] The main function of a worm gear reducer is to reduce speed and increase torque. Through the meshing of the worm and worm wheel, the worm gear reducer can convert the high-speed, low-torque motor output into a low-speed, high-torque output, thereby meeting the power transmission needs of various mechanical equipment, such as conveying machinery, metallurgical machinery, mining machinery, and chemical machinery. These applications require equipment with large reduction ratios and large torque outputs, and worm gear reducers are widely used due to their high transmission efficiency, low noise, and high reliability.
[0003] However, most worm gear reducers currently suffer from the following problems:
[0004] Existing worm gear reducers are prone to wear and rust at the meshing points between the worm gear and worm shaft during prolonged engagement. Without lubrication, this can lead to jamming and affect operational efficiency. Most reducers require disassembly and application of lubricating oil, which is cumbersome and inconvenient for convenient lubrication and protection. Furthermore, current lubrication methods often involve spraying, which can cause oil splatter, resulting in contamination and waste. This also hinders even lubrication and protection, and over time, the lubricating oil can oxidize, attracting dust and causing further contamination. This further exacerbates friction and wear, making it difficult to protect the worm gear and worm shaft and ensure even lubrication.
[0005] Therefore, we have made improvements and proposed a worm gear reducer that is easy to lubricate. Utility Model Content
[0006] The purpose of this utility model is to address the current inconvenience of providing convenient lubrication and protection, as well as the inconvenience of protecting the worm gear and applying lubricating oil evenly.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A worm gear reducer that is easy to lubricate can improve the above problems.
[0009] The application is as follows:
[0010] The device includes a protective housing, a worm gear rotatably connected to the protective housing, a worm wheel meshing with the worm gear, a connecting shaft fixedly connected to the worm wheel, the connecting shaft rotatably connected to the protective housing, a splicing flange fixedly connected to the worm gear and the connecting shaft, a material hopper fixedly connected to the protective housing, a material conveying pipe fixedly connected to the material hopper, a threaded sleeve rotatably connected to the material hopper, a turntable fixedly connected to the threaded sleeve, a threaded rod threadedly connected to the threaded sleeve, a piston block fixedly connected to the threaded rod, a distribution box fixedly connected to the material hopper, a discharge pipe fixedly connected to the distribution box, an applicator pad provided on the distribution box, a fixed box fixedly connected to the distribution box, and a spring fixedly connected inside the fixed box.
[0011] As a preferred technical solution of this application, the worm gear and the connecting shaft are both fixedly connected to the center of one side of the splicing flange, and the side end face of the piston block is in contact with the inner side of the material box.
[0012] As a preferred technical solution of this application, one end of the threaded rod is fixedly connected to the center of one side of the piston block, and the discharge pipes are evenly distributed on the distribution box.
[0013] As a preferred technical solution of this application, one end of the spring is fixedly connected to a limiting plate, a locking bracket is fixedly connected to the limiting plate, a cover plate is bolted to the protective shell, and the worm and the worm wheel are in the same vertical line.
[0014] As a preferred technical solution of this application, the fixing boxes are symmetrically distributed on the left and right sides of the distribution box, and the fixing boxes correspond one-to-one with the clamping frame through the limiting plate.
[0015] As a preferred technical solution of this application, the side end face of the limiting plate is in contact with the inner side of the fixing box, and one end of the locking frame is fixedly connected to the center part of one side of the limiting plate.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] In the scheme of this application:
[0018] 1. Equipped with a material hopper; when applying lubricating oil, the lubricating oil can be added to the material hopper through the delivery pipe. The rotating turntable drives the threaded sleeve to rotate, and the threaded sleeve can push the threaded rod to move the piston block. The piston block can deliver the lubricating oil in the material hopper to the distribution box, and inject it into the application cotton block through multiple discharge pipes on the distribution box for application and protection. Moreover, when lubricating, only a few rotations of the turntable are needed to inject and apply the lubricating oil, improving lubrication efficiency.
[0019] 2. Equipped with a grease pad; when the worm and worm wheel mesh and rotate, the worm contacts the grease pad, which evenly applies lubricating oil during rotation. The grease also adheres to the worm wheel, providing uniform lubrication. Furthermore, the grease pad can clean any oxidation or contamination, preventing impact on operating efficiency. Damaged grease pads can be replaced periodically. Pulling the two side locking brackets moves the limit plates, which compress the springs inside the fixing box. Once the locking brackets detach from the grease pads, they can be easily removed for replacement. To fix the grease pads, releasing the locking brackets causes the limit plates and locking brackets to reset under spring pressure. The locking brackets then engage with both sides of the grease pads for enhanced cleaning and protection. Attached Figure Description
[0020] Figure 1 A three-dimensional structural diagram of the worm gear reducer for easy lubrication provided in this application;
[0021] Figure 2 A three-dimensional structural diagram of the clamping frame for the worm gear reducer that facilitates lubrication, as provided in this application;
[0022] Figure 3 A side view of the distribution box structure of the worm gear reducer for easy lubrication provided in this application;
[0023] Figure 4 A side view of the hopper structure of the worm gear reducer for easy lubrication provided in this application;
[0024] Figure 5 The worm gear reducer provided in this application is designed for easy lubrication. Figure 4 Enlarged structural diagram at point A in the middle;
[0025] Figure 6 The worm gear reducer provided in this application is designed for easy lubrication. Figure 3 Enlarged structural diagram at point B.
[0026] The diagram shows: 1. Protective housing; 2. Worm gear; 3. Worm wheel; 4. Connecting shaft; 5. Splicing flange; 6. Material box; 7. Conveying pipe; 8. Threaded sleeve; 9. Turntable; 10. Threaded rod; 11. Piston block; 12. Distribution box; 13. Discharge pipe; 14. Coating cotton block; 15. Fixing box; 16. Spring; 17. Limiting plate; 18. Clamping frame; 19. Cover plate. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] Example 1:
[0033] like Figure 1-6As shown, this embodiment proposes a worm gear reducer that is easy to lubricate, including a protective housing 1, a worm 2 rotatably connected to the protective housing 1, a worm wheel 3 meshing with the worm 2, a connecting shaft 4 fixedly connected to the worm wheel 3, the connecting shaft 4 rotatably connected to the protective housing 1, a splicing flange 5 fixedly connected to the worm 2 and the connecting shaft 4, a material box 6 fixedly connected to the protective housing 1, a material conveying pipe 7 fixedly connected to the material box 6, a threaded sleeve 8 rotatably connected to the material box 6, a turntable 9 fixedly connected to the threaded sleeve 8, a threaded rod 10 threadedly connected to the threaded sleeve 8, a piston block 11 fixedly connected to the threaded rod 10, a distribution box 12 fixedly connected to the material box 6, a discharge pipe 13 fixedly connected to the distribution box 12, a coating cotton block 14 provided on the distribution box 12, a fixed box 15 fixedly connected to the distribution box 12, and a spring 16 fixedly connected inside the fixed box 15.
[0034] Example 2:
[0035] The solution in Example 1 will be further described below with reference to its specific working method.
[0036] like Figure 3 As shown, in a preferred embodiment, based on the above method, the worm gear 2 and the connecting shaft 4 are both fixedly connected to the center of one side of the splicing flange 5, and the side end face of the piston block 11 is in contact with the inner side of the material box 6, which can ensure that the worm gear 2 and the connecting shaft 4 can rotate smoothly when the splicing flange 5 is connected to external equipment.
[0037] like Figure 3 As shown, in a preferred embodiment, based on the above method, one end of the threaded rod 10 is fixedly connected to the center of one side of the piston block 11, and the discharge pipes 13 are evenly distributed on the distribution box 12, which can ensure that multiple discharge pipes 13 can uniformly deliver lubricating oil to the coating cotton block 14 for absorption and wetting.
[0038] like Figure 4 As shown, in a preferred embodiment, based on the above method, one end of the spring 16 is fixedly connected to a limiting plate 17, a locking bracket 18 is fixedly connected to the limiting plate 17, a cover plate 19 is bolted to the protective shell 1, and the worm 2 and the worm wheel 3 are in the same vertical line, which can ensure that the meshing of the worm 2 and the worm wheel 3 can run smoothly.
[0039] like Figure 6 As shown, in a preferred embodiment, based on the above method, the fixing boxes 15 are symmetrically distributed on the left and right sides of the distribution box 12. The fixing boxes 15 correspond one-to-one with the locking frames 18 through the limiting plates 17, which can ensure that the locking frames 18 on both sides can be easily locked into the application cotton block 14 for fixation.
[0040] like Figure 6As shown, in a preferred embodiment, based on the above method, the side end face of the limiting plate 17 is further fitted with the inner side face of the fixing box 15, and one end of the locking frame 18 is fixedly connected to the center part of one side of the limiting plate 17, which can ensure that the limiting plate 17 can be stably supported and moved by fitting with the inner side face of the fixing box 15 when it moves.
[0041] Specifically, this easy-to-lubricate worm gear reducer should be used in conjunction with: Figure 1-6 When applying lubricating oil, the lubricating oil can be added to the material box 6 through the feed pipe 7. The rotating turntable 9 drives the threaded sleeve 8 to rotate, and the threaded sleeve 8 can push the threaded rod 10 to move the piston block 11. The piston block 11 can transport the lubricating oil in the material box 6 to the distribution box 12, and inject it into the application cotton block 14 through the multiple discharge pipes 13 on the distribution box 12 for application and protection. When lubricating, only a few rotations of the turntable 9 are needed to inject and apply the lubricating oil, thus improving the lubrication efficiency.
[0042] When the worm 2 and worm wheel 3 mesh and rotate, the worm 2 contacts the coating cotton block 14, which evenly applies lubricating oil during rotation. The rotation also allows the lubricating oil to adhere to and be applied to the worm wheel 3, providing uniform lubrication. Furthermore, if oxidation causes contamination, the coating cotton block 14 can be used for cleaning, preventing any impact on operating efficiency. The coating cotton block 14 can be replaced periodically if damaged. Removing the cover plate 19 on the protective housing 1 and pulling the two side locking brackets 18 moves the limiting plate 17. The limiting plate 17 compresses the spring 16 inside the fixed box 15, and after the locking brackets 18 detach from the coating cotton block 14... The application cotton pad 14 can be disassembled and removed without obstruction for replacement. When fixing the application cotton pad 14, the locking frame 18 is released and driven by the spring 16 to reset the limit plate 17 and the locking frame 18. The locking frame 18 locks into both sides of the application cotton pad 14 for fixation, improving the cleaning and protection effect. When the equipment is running, other equipment such as motors can be connected and fixed through the splicing flange 5 on the worm gear 2. When running, the worm gear 2 rotates multiple times, which can drive the worm wheel 3 to rotate one revolution, achieving the effect of deceleration and protection. The connecting shaft 4 on the worm wheel 3 can be connected to the equipment to be run through the splicing flange 5 for deceleration rotation.
[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.
Claims
1. A worm gear reducer that is easy to lubricate, comprising a protective housing (1), characterized in that, A worm gear (2) is rotatably connected to the protective shell (1). A worm wheel (3) is meshed with the worm gear (2). A connecting shaft (4) is fixedly connected to the worm wheel (3). The connecting shaft (4) is rotatably connected to the protective shell (1). A splicing flange (5) is fixedly connected to the worm gear (2) and the connecting shaft (4). A material box (6) is fixedly connected to the protective shell (1). A conveying pipe (7) is fixedly connected to the material box (6). A threaded sleeve (8) is rotatably connected to the material box (6). A turntable (9) is fixedly connected to the threaded sleeve (8). A threaded rod (10) is threadedly connected to the threaded sleeve (8). A piston block (11) is fixedly connected to the threaded rod (10). A distribution box (12) is fixedly connected to the material box (6). A discharge pipe (13) is fixedly connected to the distribution box (12). An applicator (14) is provided on the distribution box (12). A fixed box (15) is fixedly connected to the distribution box (12). A spring (16) is fixedly connected inside the fixed box (15).
2. The worm gear reducer with easy lubrication according to claim 1, characterized in that, The worm gear (2) and the connecting shaft (4) are both fixedly connected to the center of one side of the splicing flange (5), and the side end face of the piston block (11) is in contact with the inner side of the material box (6).
3. The worm gear reducer with easy lubrication according to claim 1, characterized in that, One end of the threaded rod (10) is fixedly connected to the center of one side of the piston block (11), and the discharge pipes (13) are evenly distributed on the distribution box (12).
4. The worm gear reducer with easy lubrication according to claim 1, characterized in that, One end of the spring (16) is fixedly connected to a limiting plate (17), and a locking bracket (18) is fixedly connected to the limiting plate (17). A cover plate (19) is bolted to the protective shell (1). The worm (2) and the worm wheel (3) are in the same vertical line.
5. A worm gear reducer with easy lubrication according to claim 4, characterized in that, The fixing boxes (15) are symmetrically distributed on the left and right sides of the distribution box (12), and the fixing boxes (15) correspond one-to-one with the clamping frame (18) through the limiting plate (17).
6. The worm gear reducer with easy lubrication according to claim 4, characterized in that, The side end face of the limiting plate (17) is in contact with the inner side of the fixing box (15), and one end of the locking bracket (18) is fixedly connected to the center part of one side of the limiting plate (17).