Speed reducer with dynamic lubrication structure

CN224919763UActive Publication Date: 2026-10-30SIGMA GIKEN (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202522475118.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-21
Publication Date
2026-10-30
Estimated Expiration
2035-11-21

AI Technical Summary

Technical Problem

[0004]上述减速机在使用过程中,虽然能够起到提高蜗轮蜗杆啮合精度的作用,但在减速机作业时,内部的蜗轮蜗杆的啮合会产生摩擦力,为了避免组件剧烈磨损,保障蜗轮蜗杆的使用寿命和作业精度,需要定期对减速机中的组件进行润滑作业,而上述减速机中并未设有自动对减速机内部组件进行润滑的机构,因此需要使用者拆开该减速机来完成润滑作业,不仅效率低,且手动润滑的过程中无法保障将润滑油均匀的涂抹在齿槽中,降低了润滑效果,为此我们提出了一种具有动态润滑结构的减速机

Benefits of technology

1、该具有动态润滑结构的减速机,通过设置的油箱、橡胶管、输油管、排油管、油阀一、流量计、导油板结构,使得该减速机在作业过程中,通过齿轮三的转动来带动连动杆和毛刷一同旋转,从而使得毛刷均匀的粘接润滑油来对齿轮一进行润滑作业,以此提高了该减速机的自润滑效果,无需使用者手动对该减速机的内部组件进行润滑作业,进而提高了使用者的作业效率。

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Abstract

The utility model relates to the technical field of speed reducer, and disclose a speed reducer with dynamic lubricating structure, including machine body, transmission assembly, lubricating component, the machine body includes the mounting seat, the inner wall of mounting seat is equipped with worm wheel, the outer wall of worm wheel is engaged with gear one, both sides of gear one are fixedly assembled with the rotating rod, lubricating component includes the oil tank, the top of oil tank is penetrated and has the oil injection pipe. This speed reducer with dynamic lubricating structure, through the oil tank, rubber tube, oil pipe, oil drain pipe, oil valve one, flowmeter, oil guide plate structure that set up, make this speed reducer in the operation process, through the rotation of gear three to drive the linkage lever and brush one rotation, thereby make the brush even the adhesion lubricating oil to gear one lubrication operation, to this improve the self -lubricating effect of this speed reducer, need not the user manual lubrication operation to the internal component of this speed reducer, and then improved the operation efficiency of user.
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Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a speed reducer with a dynamic lubrication structure. Background Technology

[0002] Speed ​​reducers play a role in matching speeds and transmitting torque between prime movers and working machines or actuators. They are relatively precise machines used to reduce speed and increase torque. There are many types and models of speed reducers, each with different applications. According to transmission type, they can be divided into gear reducers, worm gear reducers, and planetary gear reducers; according to the number of transmission stages, they can be divided into single-stage and multi-stage reducers; according to gear shape, they can be divided into cylindrical gear reducers, bevel gear reducers, and bevel-cylindrical gear reducers; and according to the transmission arrangement, they can be divided into open-type reducers, split-type reducers, and coaxial reducers.

[0003] Chinese Utility Model Patent Publication No. CN220980277U discloses a speed reducer, relating to the field of speed reducer technology. It includes a worm gear, a worm, and a connecting housing. The connecting housing includes a worm gear mounting chamber and a worm mounting chamber. The worm gear includes a shaft and a wheel body, with the wheel body located in the middle of the shaft. A first bearing and a second bearing are respectively fitted onto both ends of the shaft. The length directions of the worm gear mounting chamber and the worm mounting chamber are perpendicular to each other, and a connecting through hole is formed at their connection point, allowing the worm and worm gear to mesh at the connecting through hole. A limiting ring and a snap-fit ​​groove suitable for press-fitting a snap ring are formed in the worm gear mounting chamber. The connecting through hole is located between the limiting ring and the snap-fit ​​groove. A first worm gear bearing cavity suitable for accommodating the first bearing is formed between the connecting through hole and the limiting ring, and a second worm gear bearing cavity suitable for accommodating the second bearing is formed between the connecting through hole and the snap-fit ​​groove. The limiting ring can abut against the first bearing. This application has the effect of facilitating the positioning and installation of the worm gear and improving the meshing accuracy of the worm gear and worm.

[0004] While the aforementioned speed reducer can improve the meshing accuracy of the worm gear during use, the meshing of the internal worm gear generates friction during operation. To prevent severe wear of components and ensure the service life and operating accuracy of the worm gear, regular lubrication of the components in the speed reducer is necessary. However, the aforementioned speed reducer does not have an automatic lubrication mechanism for its internal components. Therefore, the user needs to disassemble the speed reducer to perform lubrication, which is not only inefficient but also makes it difficult to ensure that the lubricating oil is evenly applied to the gear grooves during manual lubrication, thus reducing the lubrication effect. Therefore, we propose a speed reducer with a dynamic lubrication structure. Summary of the Invention

[0005] In view of the shortcomings of the prior art, this utility model provides a speed reducer with a dynamic lubrication structure to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reducer with a dynamic lubrication structure, comprising a body, a transmission component, and a lubrication component. The body includes a mounting base, the inner wall of which is provided with a worm gear, the outer wall of which is meshed with a gear, and rotating rods are fixedly mounted on both sides of the gear. The transmission assembly includes a first mounting shell, a second mounting shell on the outer wall of the first mounting shell, a second gear rotatably connected to the inner wall of the first mounting shell and fixedly sleeved with a rotating rod, a synchronous toothed belt meshing on the outer wall of the second gear, a third gear meshing on the end of the synchronous toothed belt away from the second gear, a connecting rod fixedly sleeved on the outer wall of the third gear, a brush fixedly mounted on the outer wall of the connecting rod, a positioning plate fixedly mounted on the top of the mounting base, and an L-shaped plate fixedly mounted on the outer wall of the second mounting shell. The lubrication assembly includes an oil tank with an oil injection pipe extending through its top. A piston is fixedly mounted on one end of the oil injection pipe located on the inner wall of the oil tank. Both the piston and the outer wall of the oil injection pipe have oil outlet holes. An oil pump is fixedly mounted on the inner wall of the oil tank. A rubber hose is fixedly mounted on the output port of the oil pump. An oil delivery pipe is connected to the end of the rubber hose away from the oil pump. An oil drain pipe is connected to the inner wall of the oil delivery pipe. An oil valve and a flow meter are respectively provided on the inner wall of the oil drain pipe. An oil guide plate is provided on the top of the mounting base.

[0007] Through the above technical solution, the structure of the transmission component, lubrication component, mounting housing one, gear two, brush, oil tank, rubber hose, and oil drain pipe allows the user to rotate the connecting rod during operation, causing the lubricated brush to come into contact with gear one, thus ensuring more even lubrication of gear one and preventing uneven application of lubricating oil. This improves the lubrication effect on the internal structure of the reducer. Furthermore, the reducer can seal the lubricating oil by closing oil valve one during operation, preventing over-lubrication and facilitating user operation. When the lubricating oil in the tank is consumed, the oil filler pipe will drop, allowing the user to observe the oil level on the scale for easy maintenance and enhancing the reducer's practicality.

[0008] Preferably, the outer wall of the positioning plate has a limiting hole, and the inner wall of the limiting hole is rotatably connected to the outer wall of the linkage rod.

[0009] Through the above technical solution, the limiting hole and connecting rod structure enable the connecting rod to rotate when gear three rotates. This allows the reducer to rotate via gear two during operation, which in turn drives gear three to rotate, thereby causing gear three to rotate the connecting rod and the brush. This allows the brush to evenly contact gear one to complete the lubrication operation without the need for an additional power source, thus improving the energy utilization rate of the reducer and reducing costs.

[0010] Preferably, the number of oil drain pipes is several, and the several oil drain pipes are evenly distributed along the inner wall of the oil guide plate, and the brush is made of nylon.

[0011] Through the above technical solution, by setting up several oil drain pipe structures, the brush can be supplied with lubricating oil through the oil drain pipes during operation, so that the lubricating oil can be evenly adhered to the brush to complete the lubrication of gear one, and further improve the self-lubricating effect of the internal structure of the reducer.

[0012] Preferably, a timer and a controller are fixedly mounted on the outer wall of the mounting base, and an oil valve is provided at the connection between the oil drain pipe and the oil delivery pipe. The controller is electrically connected to the oil valve, the flow meter, the oil pump, the oil valve, and the timer.

[0013] Through the above technical solution, by setting up a controller, oil valve one, flow meter, and oil pump structure, the reducer can measure the delivered lubricating oil through the flow meter during use, avoiding excessive lubrication and increased lubricating oil loss caused by excessive lubrication release. In conjunction with the controller, the oil valve two is automatically closed. When releasing lubricating oil, the timer is used to control the opening time of oil valve one in conjunction with the controller, thereby avoiding excessive lubricating oil release and improving the precision coordination of the internal components of the reducer.

[0014] Preferably, the outer wall of the oil injection pipe is slidably connected to the inner wall of the oil tank, and the piston is made of rubber, with graduations on the outer wall of the oil injection pipe.

[0015] Through the above technical solution, the rubber material has good sealing properties, thereby preventing lubricating oil from entering above the piston when it is injected into the oil tank. As the lubricating oil increases, the liquid level pushes the piston up, thus ensuring that the oil injection pipe can be raised and lowered when the lubricating oil is injected or discharged, and thus ensuring that the user can know the liquid level by reading the scale.

[0016] Preferably, the oil tank is connected to the inside of the oil injection pipe through the oil outlet, and the inside of the oil guide plate is connected to the inside of the oil tank through a rubber tube.

[0017] Through the above technical solution, the oil guide plate structure is designed so that the brush bends when it comes into contact with the inner wall of the oil guide plate during rotation. This increases the contact time and area between the brush and the lubricating oil, allowing the brush to be fully coated with lubricating oil and further improving the self-lubricating effect of the internal structure of the reducer.

[0018] Compared with the prior art, this utility model provides a speed reducer with a dynamic lubrication structure, which has the following beneficial effects: 1. This reducer with a dynamic lubrication structure, through the configuration of an oil tank, rubber hose, oil supply pipe, oil discharge pipe, oil valve, flow meter, and oil guide plate, enables the reducer to rotate during operation by rotating the connecting rod and brush together through the rotation of gear three. This allows the brush to evenly adhere lubricating oil to gear one, thereby improving the self-lubricating effect of the reducer. The user does not need to manually lubricate the internal components of the reducer, thus improving the user's work efficiency.

[0019] 2. This reducer with a dynamic lubrication structure, through its transmission components, worm gear, gear one, rotating rod, gear two, gear three, and synchronous toothed belt structure, allows the reducer to rotate during operation by rotating gear three through the rotation of gear one. This eliminates the need for an additional power source to drive the connecting rod and brush, reducing both the production and operating costs of the reducer and improving its energy utilization efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of mounting shell one and mounting shell two of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0021] The components are as follows: 1. Body; 101. Mounting base; 102. Worm gear; 103. Gear 1; 104. Rotating rod; 2. Transmission assembly; 201. Mounting shell 1; 202. Gear 2; 203. Gear 3; 204. Synchronous gear belt; 205. Positioning plate; 206. Connecting rod; 207. Brush; 208. L-shaped plate; 209. Mounting shell 2; 3. Lubrication assembly; 301. Oil tank; 302. Rubber hose; 303. Oil supply pipe; 304. Oil discharge pipe; 305. Oil valve 1; 306. Flow meter; 307. Oil guide plate; 308. Piston; 309. Oil pump; 310. Oil injection pipe; 311. Oil outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-5 As shown, the present invention provides a speed reducer with a dynamic lubrication structure, including a body 1, a transmission component 2, and a lubrication component 3. The body 1 includes a mounting base 101, a worm gear 102 is provided on the inner wall of the mounting base 101, a gear 103 is meshed on the outer wall of the worm gear 102, and rotating rods 104 are fixedly mounted on both sides of the gear 103. The transmission assembly 2 includes a mounting shell 1 201, a mounting shell 209 on the outer wall of the mounting shell 1 201, a gear 202 rotatably connected to the inner wall of the mounting shell 1 201 and fixedly sleeved with the rotating rod 104, a synchronous toothed belt 204 meshing with the outer wall of the gear 202, a gear 3 203 meshing with the end of the synchronous toothed belt 204 away from the gear 202, a connecting rod 206 fixedly sleeved on the outer wall of the gear 3 203, a brush 207 fixedly mounted on the outer wall of the connecting rod 206, a positioning plate 205 fixedly mounted on the top of the mounting base 101, and an L-shaped plate 208 fixedly mounted on the outer wall of the mounting shell 209. The lubrication assembly 3 includes an oil tank 301, with an oil injection pipe 310 passing through the top of the oil tank 301. A piston 308 is fixedly mounted at one end of the oil injection pipe 310 located on the inner wall of the oil tank 301. Both the piston 308 and the outer wall of the oil injection pipe 310 are provided with oil outlet holes 311. An oil pump 309 is fixedly mounted on the inner wall of the oil tank 301. A rubber tube 302 is fixedly mounted at the output port of the oil pump 309. The end of the rubber tube 302 away from the oil pump 309 is connected to an oil delivery pipe 303. An oil drain pipe 304 is connected to the inner wall of the oil delivery pipe 303. An oil valve 305 and a flow meter 306 are respectively provided on the inner wall of the oil drain pipe 304. An oil guide plate 307 is provided on the top of the mounting base 101.

[0024] The advantages are that, through the structure of the transmission component 2, lubrication component 3, mounting housing 201, gear 202, brush 207, oil tank 301, rubber hose 302, and oil drain pipe 304, the user can rotate the connecting rod 206 during operation to make the oil-coated brush 207 come into contact with gear 103, thus ensuring that gear 103 is more evenly lubricated and preventing uneven application of lubricating oil. This improves the lubrication effect on the internal structure of the reducer. Furthermore, the oil valve 305 can be closed during operation to seal the lubricating oil, preventing over-lubrication and facilitating user operation. When the lubricating oil in the oil tank 301 is consumed, the oil filler pipe 310 will drop, allowing the user to observe the oil level on the scale for maintenance, thus enhancing the practicality of the reducer.

[0025] Specifically: the outer wall of the positioning plate 205 is provided with a limit hole, and the inner wall of the limit hole is rotatably connected to the outer wall of the linkage rod 206.

[0026] The advantage is that, through the setting of the limiting hole and the connecting rod 206 structure, when the gear three 203 rotates, it can drive the connecting rod 206 to rotate, so that during the operation of the reducer, the gear two 202 drives the gear three 203 to rotate, which in turn drives the connecting rod 206 and the brush 207 to rotate. This allows the brush 207 to evenly contact the gear one 103 to complete the lubrication operation, without the need for an additional power source, thereby improving the energy utilization rate of the reducer and reducing costs.

[0027] Specifically: there are several oil drain pipes 304, and all of them are evenly distributed along the inner wall of the oil guide plate 307. The brush 207 is made of nylon.

[0028] The advantage is that, through the structure of several oil drain pipes 304, the brush 207 is supplied with lubricating oil through the oil drain pipes 304 during operation, so that the lubricating oil can be evenly adhered to the brush 207 to complete the lubrication of gear 103, and further improve the self-lubricating effect of the internal structure of the reducer.

[0029] Specifically: a timer and a controller are fixedly mounted on the outer wall of the mounting base 101. Oil valve 2 is provided at the connection between the oil drain pipe 304 and the oil supply pipe 303. The controller is electrically connected to oil valve 1 305, flow meter 306, oil pump 309, oil valve 2 and timer respectively.

[0030] The advantage is that, through the structure of the controller, oil valve 305, flow meter 306, and oil pump 309, the flow meter 306 measures the delivered lubricating oil during the operation of the reducer, avoiding excessive lubrication and increased lubricating oil loss caused by excessive lubrication release. In conjunction with the controller, the oil valve 305 is automatically closed. When releasing lubricating oil, a timer is used to coordinate with the controller to control the opening time of oil valve 305, thereby preventing excessive lubricating oil release and improving the precision coordination of the internal components of the reducer.

[0031] Specifically: the outer wall of the oil filling pipe 310 is slidably connected to the inner wall of the oil tank 301, and the piston 308 is made of rubber. The outer wall of the oil filling pipe 310 is provided with graduations.

[0032] The advantage is that the rubber material has good sealing properties, which prevents lubricating oil from entering above the piston 308 when it is injected into the oil tank 301. As the lubricating oil increases, the liquid level pushes the piston 308 up, thus ensuring that the oil injection pipe 310 can be raised and lowered when the lubricating oil is injected or discharged, so that the user can know the liquid level by reading the scale.

[0033] Specifically: the oil tank 301 is connected to the inside of the oil filling pipe 310 through the oil outlet 311, and the inside of the oil guide plate 307 is connected to the inside of the oil tank 301 through the rubber tube 302.

[0034] The advantage is that the oil guide plate 307 structure allows the brush 207 to bend when it rotates, by contacting the inner wall of the oil guide plate 307. This increases the contact time and area between the brush 207 and the lubricating oil, allowing the brush 207 to be fully coated with lubricating oil, thus further improving the self-lubricating effect of the internal structure of the reducer.

[0035] Working principle: First, the user injects lubricating oil into the oil tank 301, causing the oil injection pipe 310 to rise. During the operation of the reducer, the worm gear 102 drives the gear 103 to rotate, which in turn drives the connecting rod 206 and the brush 207 to rotate. This allows the brush 207 to adhere to the lubricating oil, thus lubricating the gear 103. No additional power source is needed for dynamic lubrication, thereby improving the energy utilization of the reducer and the precision of the components. During the lubrication process, the flow meter 306 first measures the lubricating oil flowing into the drain pipe 304, and then the flow meter is controlled by the controller. Oil valve 2 is closed, while oil valve 305 is switched on and off periodically with the help of a timer and controller, ensuring normal lubrication operations, reducing oil waste, and preventing over-lubrication. This improves the automation and intelligence of the reducer. Brush 207 can evenly apply lubricating oil to gear 103, improving the self-lubrication effect of the internal components of the reducer. As lubricating oil is consumed and the level drops, the user can determine whether to add lubricating oil by observing the scale, eliminating the need for manual lubrication of components. This improves the practicality of the reducer and the user's maintenance efficiency.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A speed reducer with a dynamic lubrication structure, comprising a body (1), a transmission assembly (2), and a lubrication assembly (3), characterized in that: The body (1) includes a mounting base (101), the inner wall of the mounting base (101) is provided with a worm gear (102), the outer wall of the worm gear (102) is meshed with a gear (103), and rotating rods (104) are fixedly mounted on both sides of the gear (103). The transmission assembly (2) includes a first mounting shell (201), the outer wall of the first mounting shell (201) is provided with a second mounting shell (209), the inner wall of the first mounting shell (201) is rotatably connected to a second gear (202) which is fixedly sleeved with a rotating rod (104), the outer wall of the second gear (202) is meshed with a synchronous toothed belt (204), the end of the synchronous toothed belt (204) away from the second gear (202) is meshed with a third gear (203), the outer wall of the third gear (203) is fixedly sleeved with a connecting rod (206), the outer wall of the connecting rod (206) is fixedly fitted with a brush (207), the top of the mounting base (101) is fixedly fitted with a positioning plate (205), and the outer wall of the second mounting shell (209) is fixedly fitted with an L-shaped plate (208). The lubrication assembly (3) includes an oil tank (301), with an oil injection pipe (310) passing through the top of the oil tank (301). A piston (308) is fixedly mounted on one end of the oil injection pipe (310) located on the inner wall of the oil tank (301). An oil outlet hole (311) is provided on the outer wall of both the piston (308) and the oil injection pipe (310). An oil pump (309) is fixedly mounted on the inner wall of the oil tank (301). A rubber tube (302) is fixedly mounted on the output port of the oil pump (309). An oil delivery pipe (303) is connected to one end of the rubber tube (302) away from the oil pump (309). An oil drain pipe (304) is connected to the inner wall of the oil delivery pipe (303). An oil valve (305) and a flow meter (306) are respectively provided on the inner wall of the oil drain pipe (304). An oil guide plate (307) is provided on the top of the mounting base (101).

2. The speed reducer with a dynamic lubrication structure according to claim 1, characterized in that: The outer wall of the positioning plate (205) is provided with a limiting hole, and the inner wall of the limiting hole is rotatably connected to the outer wall of the linkage rod (206).

3. A speed reducer with a dynamic lubrication structure according to claim 1, characterized in that: The number of oil drain pipes (304) is several, and the several oil drain pipes (304) are evenly distributed along the inner wall of the oil guide plate (307). The brush (207) is made of nylon.

4. A speed reducer with a dynamic lubrication structure according to claim 1, characterized in that: The outer wall of the mounting base (101) is fixedly equipped with a timer and a controller. The connection between the oil drain pipe (304) and the oil delivery pipe (303) is provided with an oil valve two. The controller is electrically connected to the oil valve one (305), the flow meter (306), the oil pump (309), the oil valve two, and the timer.

5. A speed reducer with a dynamic lubrication structure according to claim 1, characterized in that: The outer wall of the oil injection pipe (310) is slidably connected to the inner wall of the oil tank (301), and the piston (308) is made of rubber. The outer wall of the oil injection pipe (310) is provided with graduations.

6. A speed reducer with a dynamic lubrication structure according to claim 1, characterized in that: The oil tank (301) is connected to the inside of the oil injection pipe (310) through the oil outlet (311), and the inside of the oil guide plate (307) is connected to the inside of the oil tank (301) through the rubber tube (302).

Citation Information

Patent Citations

  • A reducer

    CN220980277U