Low-noise speed reducer with self-lubricating structure

Abstract

The utility model relates to the technical field of speed reducers, in particular to a low-noise speed reducer with a self-lubricating structure. The lubricating device comprises a shell, an input shaft and an output shaft are arranged on the two sides of the shell respectively, a reduction gear set connected between the input shaft and the output shaft is installed in the shell, an oil groove is formed in the bottom in the shell, and a splashing type lubricating mechanism and a stirring type lubricating mechanism are further installed on the shell. The stirring type lubricating mechanism comprises a second transmission gear rotationally installed in the shell, the second transmission gear is meshed with a reduction gear of the first transmission gear, stirring wheels are connected to the two sides of the second transmission gear respectively, the bottoms of the stirring wheels are located in the oil groove, and a plurality of sets of oil stirring strips are evenly arranged on each stirring wheel along the circumference. Two sets of mechanisms including a splashing type lubricating mechanism and a stirring type lubricating mechanism are designed, the gears are lubricated from the upper side and the lower side respectively, and the stirring type lubricating mechanism stirs up oil liquid through oil stirring strips by means of power of a speed reducer and lubricates the gears through splashed oil liquid.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically to a low-noise speed reducer with a self-lubricating structure. Background Technology

[0002] Speed ​​reducers are a common structure in various equipment. Their main function is to transmit high-speed rotating power to low-speed output through a reduction gear set, thereby amplifying torque and regulating output speed. However, during the operation of a speed reducer, the gear system generates a lot of heat due to the contact and friction between the gears, leading to wear on the gear surfaces and aging of the lubricating oil, which in turn affects the overall performance of the system and generates some noise. Therefore, it is necessary to add lubricating oil for lubrication. However, in many speed reducers, it is difficult to ensure uniform distribution of the oil, resulting in poor lubrication effect and high noise. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a reasonably designed low-noise speed reducer with a self-lubricating structure, which can solve the above-mentioned defects.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: It includes a housing, with an input shaft and an output shaft respectively on both sides of the housing. A reduction gear set connected between the input shaft and the output shaft is installed inside the housing. An oil groove is provided at the bottom of the housing. A splash-type lubrication mechanism and an agitation-type lubrication mechanism are also installed on the housing. The agitation-type lubrication mechanism includes a second transmission gear rotatably installed inside the housing. The second transmission gear meshes with a reduction gear. Agitators are connected to both sides of the second transmission gear. The bottom of the agitators is located in the oil groove. Several sets of agitator strips are evenly arranged along the circumference on each agitator.

[0005] Preferably, each set of oil-stirring bars on the agitator wheel has an even number, and each set of oil-stirring bars is inclined to both sides.

[0006] Preferably, the oil tank is a pyramidal shape, wider at the top and narrower at the bottom.

[0007] Preferably, the splash-type lubrication mechanism includes an oil hole at the bottom of the housing, the oil hole being located at the center of the bottom of the oil tank. Below the oil hole, the housing also has an installation groove in which a filter assembly is installed. The filter assembly includes an installation plate mounted on the housing, with a filter element connected to the inner side of the installation plate. The inner side of the filter element fits against the inner wall of the installation groove, connecting to the oil hole, and a sealing ring is provided above the filter element. An oil pipe one connected to the filter element is provided on the outer side of the installation plate. An oil pipe two is installed on the housing, and the oil pipe two is connected to the oil pipe one through a connector. The oil pipe two is connected to a micro oil pump mounted on the housing. The oil outlet of the micro oil pump is connected to an oil spray head located at the top of the housing through an oil pipe three. The oil spray head has several oil spray holes evenly arranged at multiple angles facing downwards.

[0008] Preferably, the power input end of the micro oil pump is connected inside the housing and is connected to the input shaft via multiple transmission gears.

[0009] Preferably, the bottom and sides of the housing are provided with pipe grooves, the second oil pipe is disposed in the pipe grooves, and the end of the pipe groove near the mounting plate is also provided with a groove for accommodating the joint.

[0010] The beneficial effects of this utility model after adopting the above structure are:

[0011] 1. This utility model is designed with two sets of mechanisms: a splashing lubrication mechanism and a stirring lubrication mechanism, which lubricate the gear from the top and bottom sides respectively to ensure the lubrication effect.

[0012] 2. The splash-type lubrication mechanism in this utility model can spray oil in a circulating manner and filter the oil during the process to ensure the purity of the oil. The oil can be evenly sprayed onto the surface of the gear to achieve lubrication.

[0013] 3. The stirring lubrication mechanism in this utility model utilizes the power of the reducer itself to stir the oil with an oil stirring bar, and uses the splashed oil to lubricate the gears, resulting in a stable and efficient structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a top view of the internal structure of this utility model;

[0016] Figure 3 This is a side view of the internal structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the present invention;

[0018] Figure 5 yes Figure 4 Enlarged view of section A in the middle;

[0019] Figure 6 This is a bottom view of the present invention;

[0020] Figure 7 yes Figure 6 Enlarged view of section B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Housing; 2. Input shaft; 3. Output shaft; 4. Miniature oil pump; 5. Transmission gear one; 6. Oil tank; 7. Oil hole; 8. Mounting plate; 9. Filter element; 10. Sealing ring; 11. Oil pipe one; 12. Connector; 13. Oil pipe two; 14. Oil pipe three; 15. Injector head; 16. Transmission gear two; 17. Agitator wheel; 18. Agitator bar. Detailed Implementation

[0023] 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.

[0024] See Figures 1-3 As shown, this structure includes a housing 1, with an input shaft 2 and an output shaft 3 respectively located on both sides of the housing 1. Inside the housing 1, a reduction gear set is installed between the input shaft 2 and the output shaft 3 to ensure the transmission and conversion of power. The bottom of the housing 1 is provided with an oil groove 6, which is a pyramidal shape with a larger top and a smaller bottom to hold oil and ensure its fluidity. In addition, the housing 1 is also equipped with a splash-type lubrication mechanism and a stirring-type lubrication mechanism to ensure that each gear inside the reducer is fully lubricated during operation, reducing friction and wear.

[0025] The agitation-type lubrication mechanism includes a transmission gear 16 rotatably mounted inside the housing 1. The transmission gear 16 meshes with a gear in the reduction gear set. Agitators 17 are connected to both sides of the transmission gear 16, and its rotation drives the agitators 17 on both sides to rotate. The bottom of the agitator 17 is located in the oil tank 6. Several sets of oil stirring strips 18 are evenly arranged on the circumference of each agitator 17, and each set of oil stirring strips 18 consists of two strips, which are inclined to both sides. When the agitator 17 rotates, it can agitate the oil in the oil tank 6 through the oil stirring strips 18, causing the oil to splash to various positions inside the housing 1. In conjunction with the rotation of the reduction gear, the oil is delivered to the contact surfaces of each gear to ensure the lubrication of the reduction gear, thereby reducing gear noise and slowing down wear.

[0026] See Figures 1-7As shown, the splash-type lubrication mechanism mainly includes an oil hole 7 located at the bottom of the housing 1, with the oil hole 7 at the center of the bottom of the oil tank 6. An installation groove is also provided on the outer casing below the oil hole 7, and a filter assembly is installed in the groove. The filter assembly includes an installation plate 8 mounted on the housing 1, with the inner side of the installation plate 8 connected to the filter element 9. The inner wall of the filter element 9 fits snugly against the inner wall of the installation groove, ensuring that the oil hole 7 is connected to the filter element 9. A sealing ring 10 is provided above the filter element 9 to enhance the sealing effect. An oil pipe 11 connected to the filter element 9 is connected to the outer side of the installation plate 8. An oil pipe 13 is provided on the housing 1, and the oil pipe 13 is connected to the oil pipe 11 via a connector 12. The oil pipe 13 is then connected to a miniature oil pump 4 mounted on the housing 1. The oil outlet of the miniature oil pump 4 is connected to an oil nozzle 15 mounted on the top of the housing 1 via an oil pipe 14. The oil nozzle 15 has several downward-facing, evenly distributed spray holes, which can evenly spray oil onto the gears when the reducer is working.

[0027] The power input end of the micro oil pump 4 is connected to the input shaft 2 through multiple transmission gears 5 to ensure that it is driven synchronously with the input shaft during the operation of the reducer and pumps out oil. The bottom and side of the housing 1 have pipe grooves, and the oil pipe 13 is arranged in the pipe grooves. The end of the pipe groove near the mounting plate 8 also has a groove for accommodating the connector 12, which facilitates connection and disassembly.

[0028] During the operation of the reducer, the micro oil pump 4 operates synchronously, pumping oil from the bottom of the oil tank 6 to the oil spray head 15. The oil is then sprayed onto the gear surface through the oil spray head 15, further enhancing the lubrication effect. In addition, the oil is filtered by the filter element 9 before spraying, ensuring that metal debris does not enter the oil pipe. As the oil is sprayed and circulated, metal debris and dust and other impurities are automatically accumulated in the filter element 9, reducing the impurity content in the lubricating oil and improving the purity of the oil. When necessary, the mounting plate 8 can be removed and the filter element 9 replaced to ensure the long-term purity of the oil.

[0029] In addition, the grooves and slots in the housing 1 allow the pipes and related components to be housed without affecting the appearance and size of the reducer. The oil pipes are connected through the connector 12, which facilitates the disassembly and connection of the oil pipes when replacing the filter element.

[0030] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A low-noise speed reducer with a self-lubricating structure, comprising a housing (1), characterized in that: The housing (1) is provided with an input shaft (2) and an output shaft (3) on both sides respectively. A reduction gear set connected between the input shaft (2) and the output shaft (3) is installed inside the housing (1). An oil groove (6) is provided at the bottom of the housing (1). A splash lubrication mechanism and an agitation lubrication mechanism are also installed on the housing (1). The agitation lubrication mechanism includes a transmission gear two (16) rotatably installed inside the housing (1). The transmission gear two (16) meshes with a reduction gear. Agitation wheels (17) are connected to both sides of the transmission gear two (16). The bottom of the agitation wheel (17) is located in the oil groove (6). Several sets of oil stirring strips (18) are evenly arranged along the circumference on each agitation wheel (17).

2. The low-noise speed reducer with a self-lubricating structure according to claim 1, characterized in that: The number of oil stirring bars (18) on the stirring wheel (17) is even, and each set of oil stirring bars (18) is tilted to both sides.

3. A low-noise speed reducer with a self-lubricating structure according to claim 2, characterized in that: The oil tank (6) is a pyramidal shape with a larger top and a smaller bottom.

4. A low-noise speed reducer with a self-lubricating structure according to claim 1, characterized in that: The splash-type lubrication mechanism includes an oil hole (7) located at the bottom of the housing (1). The oil hole (7) is located at the center of the bottom of the oil groove (6). A mounting groove is also provided on the outer shell below the oil hole (7), and a filter assembly is installed in the groove. The filter assembly includes a mounting plate (8) mounted on the housing (1). A filter element (9) is connected to the inner side of the mounting plate (8). The inner side of the filter element (9) is in contact with the inner wall of the mounting groove to achieve connection with the oil hole (7). A sealing ring (10) is provided above the filter element (9). The outer side of the plate (8) is provided with an oil pipe (11) connected to the filter element (9). An oil pipe (2) (13) is installed on the housing (1). The oil pipe (2) (13) is connected to the oil pipe (11) through a connector (12). The oil pipe (2) (13) is connected to the micro oil pump (4) installed on the housing (1). The oil outlet of the micro oil pump (4) is connected to the oil nozzle (15) located at the top of the housing (1) through an oil pipe (3) (14). The oil nozzle (15) has several oil nozzles evenly arranged at multiple angles facing downwards.

5. A low-noise speed reducer with a self-lubricating structure according to claim 4, characterized in that: The power input end of the micro oil pump (4) is connected inside the housing (1) and is connected to the input shaft (2) via multiple transmission gears (5).

6. A low-noise speed reducer with a self-lubricating structure according to claim 5, characterized in that: The bottom and sides of the housing (1) have pipe grooves, and the second oil pipe (13) is located in the pipe grooves. The end of the pipe groove near the mounting plate (8) also has a groove for accommodating the connector (12).

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