A gear reduction box

Abstract

This utility model discloses a gear reducer, belonging to the field of gear reducers. The device includes a lower housing, an upper housing, a gear set, and a lubrication assembly. The lower housing and the upper housing are detachably connected. The gear set is housed within both the lower and upper housings. The lubrication assembly is mounted on both the lower and upper housings; the lubrication assembly includes a pipe and a drive component; the pipe is positioned above the gear set and fixedly connected to the inner wall of the upper housing, with a sleeve and a second sleeve respectively fitted on the outer side of the pipe; a nozzle is located at the lower end of the sleeve; and a nozzle is located at the lower end of the sleeve. This utility model uses an oil pump to draw lubricating oil from the lower housing and pump it into the pipe, then sprays the lubricating oil through the nozzles onto the gear set via the nozzles, thus lubricating the gear set. This allows for precise delivery of lubricating oil to key parts such as gear meshing, forming a stable and uniform oil film, effectively isolating the gear tooth surfaces and reducing friction and wear.

Description

Technical Field

[0001] This utility model relates to the field of gear reducers, and in particular to a gear reducer. Background Technology

[0002] A gear reducer is a mechanical device that transmits power, reduces speed, and increases torque through gear meshing. It mainly consists of input / output shafts, multi-stage gears, bearings, a housing, and seals. Its core principle is to achieve speed reduction using the speed ratio of gears with different numbers of teeth. Common types include parallel shaft, planetary, and worm gear reducers.

[0003] Traditional gear reducers typically fill the housing with lubricating oil directly. However, this lubrication method relies on natural flow and splashing, making it difficult to ensure continuous and sufficient lubrication of critical components. This can easily lead to localized insufficient lubrication and accelerated wear. Furthermore, heat accumulates inside the housing, and relying solely on natural convection for heat dissipation is inefficient and can easily cause the lubricating oil temperature to become too high.

[0004] Therefore, this utility model proposes a gear reducer. Utility Model Content

[0005] This invention provides a gear reducer that can solve the problems of insufficient local lubrication and excessively high lubricating oil temperature that are common in the prior art.

[0006] A gear reducer, comprising:

[0007] The system comprises a lower chassis, an upper chassis, a gear set, and a lubrication assembly. The lower and upper chassis are detachably connected. The gear set is housed within both the lower and upper chassis. The lubrication assembly is mounted on both the lower and upper chassis; the lubrication assembly includes a first pipe and a driving component; the first pipe is positioned above the gear set and is fixedly connected to the inner wall of the upper chassis, with a first sleeve and a second sleeve respectively fitted onto the outer side of the first pipe; a first nozzle is located at the lower end of the first sleeve; a second nozzle is located at the lower end of the second sleeve; both the first and second sleeves are driven to rotate by the driving component, and their rotation directions are opposite.

[0008] Preferably, multiple sleeves are provided for both sleeve one and sleeve two; multiple sleeves one and sleeve two are arranged in an interlocking manner and their ends are interlocked with each other.

[0009] Preferably, both ends of the inner wall of sleeve one are provided with sealing rings; both ends of the outer wall of sleeve two are provided with annular grooves; the sealing rings are engaged with the corresponding annular grooves.

[0010] Preferably, the lower end of the pipe is provided with multiple openings; the multiple openings are connected to the nozzles on the multiple sleeves and the nozzles on the multiple sleeves.

[0011] Preferably, an oil pump is provided on the side wall of the lower casing; oil pipes are connected to both the upper and lower sides of the oil pump; an oil trough is provided at the bottom of the lower casing; the oil pipe on the lower side is connected to the oil trough, and the oil pipe on the upper side is connected to the pipeline.

[0012] Preferably, the oil trough is semi-circular.

[0013] Preferably, the end of the oil pipe that connects to the oil tank is located at the lowest point of the oil tank.

[0014] Preferably, the driving component includes a rotating shaft 1 rotatably connected to the inner wall of the upper housing; a motor is also provided on the side wall of the upper housing; the driving end of the motor is connected to one end of the rotating shaft 1; a plurality of gears 1 are provided on the rotating shaft 1; teeth are provided on the outer sides of a plurality of sleeves 1 and sleeves 2; the plurality of gears 1 correspond one-to-one with the plurality of sleeves 1, and are respectively meshed with the teeth on the corresponding sleeves 1.

[0015] Preferably, the rotating shaft one is also provided with multiple gears two; the rotating shaft two is rotatably provided on the inner wall of the upper housing; the rotating shaft two is provided with multiple gears three; the multiple gears two and multiple gears three are meshed and connected in a one-to-one correspondence; the multiple gears three are corresponding to multiple sleeves two, and are respectively meshed and connected with the teeth on the corresponding sleeves two.

[0016] Preferably, gear one, gear two, and gear three have the same number of teeth.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] (1) The gear reducer includes a pipe and a drive component; the pipe is located above the gear set and is fixedly connected to the inner wall of the upper housing. A sleeve and a sleeve are respectively fitted on the outer side of the pipe; a nozzle is provided at the lower end of the sleeve; a nozzle is provided at the lower end of the sleeve; both the sleeve and the sleeve are driven to rotate by the drive component, and the rotation directions of the sleeve and the sleeve are opposite. The lubricating oil filled in the lower housing is pumped away by an oil pump and pumped into the pipe, and then the lubricating oil is sprayed onto the gear set from the nozzles 1 and 2 through the port to lubricate the gear set. The lubricating oil can be accurately delivered to key parts such as gear meshing to form a stable and uniform oil film, effectively isolating the gear tooth surface and reducing friction and wear. Moreover, the circulating flow of the lubricating oil can quickly remove the heat generated by the gear operation, making the lubricating oil temperature uniform and avoiding local overheating.

[0019] (2) The gear reducer includes a rotating shaft rotatably connected to the inner wall of the upper housing; a motor is also provided on the side wall of the upper housing; the drive end of the motor is connected to one end of the rotating shaft; multiple gears are provided on the rotating shaft; teeth are provided on the outer sides of multiple sleeves 1 and 2; multiple gears 1 correspond one-to-one with multiple sleeves 1, and are respectively meshed with the teeth on the corresponding sleeves 1. By driving sleeves 1 and 2 to rotate in opposite directions, the lubricating oil coverage area can be expanded to achieve more comprehensive lubrication, so that all parts of the gear, especially the edges and complex structures, can obtain sufficient lubricating oil, reduce local wear caused by uneven lubrication, and extend the service life of the gear. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the gear reducer structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the gear reducer structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the lubrication component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the pipe and port structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the sealing ring and annular groove structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Lower chassis; 2. Upper chassis; 3. Gear set; 4. Lubrication assembly; 41. Pipe 1; 42. Port; 43. Sleeve 1; 44. Nozzle 1; 45. Sleeve 2; 46. Nozzle 2; 47. Sealing ring; 48. Annular groove; 49. Oil pump; 410. Oil pipe; 411. Oil tank; 412. Shaft 1; 413. Motor; 414. Gear 1; 415. Gear 2; 416. Gear; 417. Shaft 2; 418. Gear 3. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figure 1-5As shown in the figure, a gear reducer provided in this embodiment of the present invention includes a lower housing 1, an upper housing 2, a gear set 3, and a lubrication assembly 4. The lower housing 1 and the upper housing 2 are detachably connected. The gear set 3 is disposed inside the lower housing 1 and the upper housing 2. The lubrication assembly 4 is disposed on the lower housing 1 and the upper housing 2; the lubrication assembly 4 includes a pipe 41 and a driving component; the pipe 41 is disposed above the gear set 3 and is fixedly connected to the inner wall of the upper housing 2, and a sleeve 43 and a sleeve 45 are respectively sleeved on the outer side of the pipe 41; a nozzle 44 is provided at the lower end of the sleeve 43; a nozzle 46 is provided at the lower end of the sleeve 45; both the sleeve 43 and the sleeve 45 are driven to rotate by the driving component, and the rotation directions of the sleeve 43 and the sleeve 45 are opposite.

[0029] Further explanation: Multiple sleeves 43 and 45 are provided; these sleeves 43 and 45 are arranged crosswise and interlock at their ends. Both ends of the inner wall of sleeve 43 are provided with sealing rings 47; both ends of the outer wall of sleeve 45 are provided with annular grooves 48; the sealing rings 47 engage with the corresponding annular grooves 48. This enhances the sealing between sleeves 43 and 45, preventing lubricating oil from flowing out from the joint between them. Multiple openings 42 are provided at the lower end of pipe 41; these openings 42 are connected to nozzles 44 on sleeves 43 and nozzles 46 on sleeves 45. An oil pump 49 is installed on the side wall of the lower casing 1; oil pipes 410 are connected to both the upper and lower sides of the oil pump 49; an oil trough 411 is opened at the bottom of the lower casing 1; the lower oil pipe 410 is connected to the oil trough 411, and the upper oil pipe 410 is connected to pipe 41. The oil trough 411 is semi-circular, which can form a drainage path, allowing the lubricating oil to flow naturally to the lowest point of the trough under the action of gravity. The end of the oil pipe 410 connected to the oil trough 411 is located at the lowest point of the oil trough 411, which allows the oil pump 49 to draw lubricating oil from the oil trough 411 more thoroughly. Oil pump 49 draws the lubricating oil from the lower housing 1 and pumps it into pipe 41. The lubricating oil then passes through port 42 and is sprayed onto gear set 3 from nozzles 44 and 46, lubricating the gear set 3. Finally, the lubricating oil flows into the oil trough 411 at the bottom of the lower housing 1 and is collected, then pumped away again by oil pump 49, repeating this cycle. This method precisely delivers lubricating oil to key parts such as gear meshing, forming a stable and uniform oil film that effectively isolates the gear teeth, reducing friction and wear. Furthermore, the circulating lubricating oil quickly removes the heat generated by gear operation, ensuring uniform lubricating oil temperature and preventing localized overheating. In contrast, the traditional method of directly filling the lower housing 1 with lubricating oil relies on natural flow and splashing, making it difficult to guarantee continuous and sufficient lubrication for key parts, easily leading to insufficient localized lubrication and accelerated wear.

[0030] Further explanation: The driving component includes a rotating shaft 412 rotatably connected to the inner wall of the upper housing 2; a motor 413 is also provided on the side wall of the upper housing 2; the driving end of the motor 413 is connected to one end of the rotating shaft 412; the rotating shaft 412 is provided with multiple gears 414; the outer sides of multiple sleeves 43 and sleeves 45 are provided with teeth 416; the multiple gears 414 correspond one-to-one with the multiple sleeves 43, and are respectively engaged with the teeth 416 on the corresponding sleeves 43. The rotating shaft 412 is also provided with multiple gears 415; a rotating shaft 417 is rotatably provided on the inner wall of the upper housing 2; the rotating shaft 417 is provided with multiple gears 418; the multiple gears 415 and multiple gears 418 are respectively engaged with each other; the multiple gears 418 correspond one-to-one with the multiple sleeves 45, and are respectively engaged with the teeth 416 on the corresponding sleeves 45. Gears 414 (first gear), 415 (second gear), and 418 (third gear) have the same number of teeth. This ensures that sleeves 43 (first gear) and 45 rotate at the same speed, causing nozzles 44 (first gear) and 46 (second gear) to oscillate at the same rate. The driving component can drive sleeves 43 (first gear) and 45 (second gear) to rotate in opposite directions, expanding the lubricating oil coverage area for more comprehensive lubrication. This ensures that all parts of the gears, especially edges and complex structures, receive sufficient lubrication, reducing localized wear caused by uneven lubrication and extending gear life.

[0031] The working principle of this utility model is as follows: During operation, the oil pump 49 is first started. The oil pump 49 can draw away the lubricating oil filled in the lower casing 1 and pump it into the first pipe 41. Then, the lubricating oil is sprayed onto the gear set 3 through the port 42 from the first nozzle 44 and the second nozzle 46 respectively, thus lubricating the gear set 3. At the same time, the motor 413 is started to drive the first shaft 412 to rotate, thereby driving the first gear 414, the second gear 415, the third gear 418, and the second shaft 417 to rotate. This, in turn, drives the first sleeve 43 and the second sleeve 45 to rotate in opposite directions, causing the first nozzle 44 and the second nozzle 46 to swing in opposite directions, which can expand the lubricating oil coverage area and achieve more comprehensive lubrication. Finally, the lubricating oil will flow into the oil tank 411 at the bottom of the lower casing 1 and be collected, and then drawn away by the oil pump 49. This cycle is repeated.

[0032] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A gear reducer, characterized in that, include The lower chassis (1) and the upper chassis (2) are detachably connected; Gear set (3); Gear set (3) is installed in the lower housing (1) and the upper housing (2); Lubrication assembly (4); Lubrication assembly (4) is installed on the lower casing (1) and the upper casing (2); Lubrication assembly (4) includes pipe one (41) and drive component; Pipe one (41) is installed above the gear set (3) and is fixedly connected to the inner wall of the upper casing (2), and sleeve one (43) and sleeve two (45) are respectively sleeved on the outside of pipe one (41); nozzle one (44) is provided at the lower end of sleeve one (43); nozzle two (46) is provided at the lower end of sleeve two (45); sleeve one (43) and sleeve two (45) are both driven to rotate by drive component, and the rotation directions of sleeve one (43) and sleeve two (45) are opposite.

2. The gear reducer according to claim 1, characterized in that, Multiple sleeves are provided for both sleeve one (43) and sleeve two (45); multiple sleeves one (43) and sleeve two (45) are arranged in a cross manner and their ends are connected to each other.

3. A gear reducer according to claim 2, characterized in that, Both ends of the inner wall of sleeve one (43) are provided with sealing rubber rings (47); both ends of the outer wall of sleeve two (45) are provided with annular grooves (48); the sealing rubber rings (47) and the corresponding annular grooves (48) are engaged and snapped together.

4. A gear reducer according to claim 3, characterized in that, The lower end of pipe 1 (41) is provided with multiple openings (42); the multiple openings (42) are connected one-to-one with nozzle 1 (44) on multiple sleeve 1 (43) and nozzle 2 (46) on multiple sleeve 2 (45).

5. A gear reducer according to claim 4, characterized in that, An oil pump (49) is provided on the side wall of the lower casing (1); oil pipes (410) are connected to both the upper and lower sides of the oil pump (49); an oil tank (411) is provided at the bottom of the lower casing (1); the oil pipe (410) on the lower side is connected to the oil tank (411), and the oil pipe (410) on the upper side is connected to the first pipe (41).

6. A gear reducer according to claim 5, characterized in that, The oil trough (411) is semi-circular.

7. A gear reducer according to claim 6, characterized in that, One end of the oil pipe (410) that connects to the oil tank (411) is located at the lowest point of the oil tank (411).

8. A gear reducer according to claim 2, characterized in that, The driving component includes a rotating shaft (412) rotatably connected to the inner wall of the upper housing (2); a motor (413) is also provided on the side wall of the upper housing (2); the driving end of the motor (413) is connected to one end of the rotating shaft (412); multiple gears (414) are provided on the rotating shaft (412); teeth (416) are provided on the outer side of multiple sleeves (43) and sleeves (45); multiple gears (414) correspond one-to-one with multiple sleeves (43) and are respectively meshed with the teeth (416) on the corresponding sleeves (43).

9. A gear reducer according to claim 8, characterized in that, The rotating shaft (412) is also provided with multiple gears (415); the inner wall of the upper housing (2) is provided with rotating shaft (417); the rotating shaft (417) is provided with multiple gears (418); the multiple gears (415) and the multiple gears (418) are meshed and connected in a one-to-one correspondence; the multiple gears (418) correspond to the multiple sleeves (45) and are meshed and connected with the teeth (416) on the corresponding sleeves (45).

10. A gear reducer according to claim 9, characterized in that, Gear 1 (414), Gear 2 (415) and Gear 3 (418) have the same number of teeth.

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