A speed reducer lubricating device and method

Abstract

The application provides a speed reducer lubricating device and method, relates to the technical field of speed reducer lubrication, and comprises a mounting frame fixedly connected to the inner side wall of an upper shell, a transmission shaft clamped between the upper shell and a lower shell, an eccentric wheel fixedly connected to the outer side wall of the transmission shaft, an adjusting rod rotatably connected to the end of the eccentric wheel away from the upper shell, a sliding groove formed in the adjusting rod, a limiting rod fixedly connected to the outer side wall of the end of the adjusting rod close to the eccentric wheel, and a spring arranged on the outer side wall of the limiting rod; the cooperation of the eccentric wheel, the mounting frame, the adjusting rod, the limiting rod, the spring, the fixing block, the sliding rod, the connecting head, the sliding groove, the reset spring and the push ball facilitates the lubrication of the gears during the start of the speed reducer, avoids dry friction or boundary lubrication state at the moment of starting, effectively prevents the gear tooth surface from being damaged in the form of small scratches, peeling and pitting, the gear tooth surface precision is maintained, power transmission is stably performed for a long time, and the service life of the gear is greatly prolonged.

Description

Technical Field

[0001] This invention relates to the field of speed reducer lubrication technology, and in particular to a speed reducer lubrication device and method. Background Technology

[0002] Gear reducers are widely used in industrial fields, and their normal operation depends on proper lubrication. However, even with a normal lubricating oil level, various problems may still occur during gear reducer operation, affecting its performance, lifespan, and working efficiency.

[0003] When a speed reducer is restarted after a long period of inactivity, even if the oil level is normal, the lubricating oil may partially adhere to the inner surface of the gearbox or gear components due to prolonged stagnation. This may prevent the lubricating oil from reaching critical lubrication points such as meshing parts in a timely and effective manner. This can lead to a brief period of dry friction or boundary lubrication between gears and between bearings and journals at the moment of startup, accelerating the wear of critical components such as gears and bearings, reducing their service life, and causing wear accumulation during frequent startups. This can result in the peeling and pitting of gear teeth, and increased wear on bearing raceways and rolling elements, which in turn can cause increased vibration and noise in the speed reducer, ultimately affecting the normal operation of the entire equipment. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gearbox lubrication device and method. This addresses the problem that, when a gearbox is restarted after a long period of inactivity, even if the oil level is normal, the lubricating oil may partially adhere to the inner surface of the gearbox or gears and other components due to prolonged static storage, failing to reach key lubrication points such as meshing parts in a timely and effective manner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a speed reducer lubrication device, comprising a lower housing, wherein an upper housing is detachably connected to the top of the lower housing; An oil storage structure is provided above the upper outer shell; The interior of the upper outer shell is provided with an intermittent structure; The oil storage structure has an internal enclosed structure; The intermittent structure includes a mounting bracket fixedly connected to the inner wall of the upper outer shell. A drive shaft is engaged between the lower and upper outer shells. An eccentric wheel is fixedly connected to the outer wall of the drive shaft. An adjusting rod is rotatably connected to the end of the eccentric wheel away from the upper outer shell. A sliding groove is provided on the adjusting rod. A limit rod is fixedly connected to the outer wall of the adjusting rod near the eccentric wheel. A spring is provided on the outer wall of the limit rod. A fixing block is fixedly connected to the inner top wall of the upper outer shell. A sliding rod is slidably connected to the inner wall of the fixing block. A connector is fixedly connected to the end of the sliding rod near the adjusting rod. A crossbar is provided on the inner wall of the connector and is located inside the sliding groove. A push ball is fixedly connected to the end of the sliding rod away from the connector. A return spring is fixedly connected to the outer wall of the sliding rod. The end of the return spring away from the connector is fixedly connected to the outer wall of one of the fixing blocks. An oil reservoir is fixedly connected to the top of the upper outer shell.

[0006] In a preferred embodiment, the enclosed structure includes a horizontal plate fixedly connected to the inner wall of the oil tank, a sliding column slidably connected to the horizontal plate, a baffle fixedly connected to one end of the sliding column, a protrusion fixedly connected to the bottom of the baffle, and an oil drain groove formed on the outer wall of the end of the sliding column near the protrusion.

[0007] The beneficial effects of adopting the above-mentioned further solution are: by setting up a horizontal plate, sliding column, baffle, protrusion, and oil drain groove, it is convenient to intermittently spray the lubricating oil inside the oil tank, thereby improving the utilization efficiency of the lubricating oil.

[0008] In a preferred embodiment, multiple oil drain grooves are provided, and the multiple oil drain grooves are distributed in a circumferential array on the outer wall of the sliding column for diverting lubricating oil.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by setting multiple oil drain grooves, it is easier to evenly distribute the lubricating oil and improve the coverage area of ​​the lubricating oil.

[0010] In a preferred embodiment, a fixed frame is fixedly connected to the top of the oil storage tank, an electric telescopic rod is fixedly connected to the outer wall of the fixed frame, a pressure plate is fixedly connected to the telescopic end of the electric telescopic rod, and a rubber strip is provided on the outer side wall of the pressure plate.

[0011] The beneficial effects of adopting the above-mentioned further solution are: by setting up a fixed frame, electric telescopic rod, pressure plate, and rubber strip, it is convenient to pressurize the lubricating oil inside the oil tank and improve the spraying intensity.

[0012] In a preferred embodiment, the electric telescopic rod is located at the top center of the oil tank, and the connection point between the telescopic end of the electric telescopic rod and the pressure plate is located at the top center of the pressure plate.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting the connection point between the telescopic end of the electric telescopic rod and the pressure plate at the center of the top of the pressure plate, the stability of the pressure plate can be improved.

[0014] In a preferred embodiment, the outer wall of the oil tank is provided with a first oil inlet, and the outer wall of the lower outer shell is provided with a second oil inlet.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by setting the first oil inlet and the second oil inlet, it is convenient for operators to add lubricating oil.

[0016] In a preferred embodiment, an oil sealing plate is provided on the outer wall of the drive shaft, a gear is fixedly connected to the outer wall of the drive shaft, and a bearing is fixedly connected to the outer wall of the drive shaft.

[0017] The beneficial effect of adopting the above-mentioned further solution is that by setting bearings, it is easier to reduce the frictional force when the drive shaft rotates, thereby reducing the wear of the drive shaft.

[0018] In a preferred embodiment, a retaining ring is fixedly connected to the outer side wall of the oil sealing plate, and the outer side wall of the bearing fits into the inner side wall of the retaining ring.

[0019] The beneficial effect of adopting the above-mentioned further solution is that by setting a retaining ring, it is easy to limit the bearing and prevent the bearing angle from shifting.

[0020] A method for lubricating a speed reducer, applicable to the aforementioned speed reducer lubrication device, includes the following steps: S1. After the motor is started, the motor drives the transmission shaft to rotate. At this time, the transmission shaft will drive the eccentric wheel to rotate synchronously. Since the inner wall of the upper shell is fixedly connected to the mounting bracket, and the inner wall of the mounting bracket is rotatably connected to the adjusting rod, the connection point of the two is used as the fulcrum. When the eccentric wheel rotates with the transmission shaft, and the outer wall of the mounting bracket collides with the outer wall of the adjusting rod during the rotation, the adjusting rod rotates with the connection point as the fulcrum. Furthermore, through the cooperation of the connector and the slide groove, the sliding rod is pushed towards the fixed block, and the push ball is further pushed to move. S2. When the outer wall of the push ball contacts the bottom of the protrusion, the push ball squeezes the protrusion, causing the protrusion to rise. When the protrusion rises, it squeezes a portion of the sliding column with the oil drain groove into the oil tank. At this time, under the pressure inside the oil tank, the lubricating oil is sprayed into the interior of the upper housing along the oil drain groove. When the lubricating oil comes into contact with the baffle, because the top of the baffle is sloped, the lubricating oil will diffuse when it enters the upper housing, lubricating the top of the gear inside the upper housing. This prevents insufficient lubricating oil from causing increased friction between the gears during startup, thereby preventing increased gear wear.

[0021] S3. As the drive shaft rotates continuously, the eccentric wheel continuously squeezes the adjusting rod. Under the action of the limit rod and the spring, the adjusting rod rotates back and forth at the connection point between the mounting bracket and the adjusting rod, thereby continuously adjusting the height of the slide column, realizing the intermittent spraying of lubricating oil and improving the lubrication force during startup.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. Through the coordinated use of the eccentric wheel, mounting bracket, adjusting rod, limit rod, spring, fixing block, sliding rod, connector, sliding groove, return spring, and push ball, lubrication between the gears is facilitated during the start-up of the reducer. This avoids dry friction or boundary lubrication during startup, effectively preventing damage such as micro-scratches, peeling, and pitting on the gear tooth surfaces. The gears maintain good tooth surface accuracy and can transmit power stably over a long period, thus greatly extending the service life of the gears.

[0023] 2. The use of cross plates, sliding columns, baffles, protrusions, and oil drain grooves facilitates intermittent spraying of lubricating oil and increases the coverage of lubricating oil, thereby improving lubrication efficiency, reducing wear on key components such as gears and bearings, and improving the overall reliability and stability of the equipment.

[0024] 3. The combination of a fixed frame, an electric telescopic rod, a pressure plate, and rubber strips facilitates the pressurization of the lubricating oil inside the oil tank, thereby improving the spraying efficiency of the lubricating oil. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a speed reducer lubrication device according to the present invention; Figure 2 This is a schematic diagram of the eccentric wheel and related parts of a speed reducer lubrication device according to the present invention; Figure 3 This is a schematic diagram of the mounting bracket and related parts of a speed reducer lubrication device according to the present invention; Figure 4 This is a schematic diagram of the slide rod and related parts of a speed reducer lubrication device according to the present invention; Figure 5 This is a schematic diagram of the ball pusher and related parts of a speed reducer lubrication device according to the present invention; Figure 6 This is a schematic diagram of the oil drain groove and related parts of a speed reducer lubrication device according to the present invention; Figure 7 This is a schematic diagram of the oil sealing plate and related parts of a speed reducer lubrication device according to the present invention; Figure 8 This is a schematic diagram of the pressure plate and related parts of a speed reducer lubrication device according to the present invention.

[0026] Legend: 1. Lower outer shell; 2. Upper outer shell; 3. Oil storage structure; 31. Oil tank; 301. Fixing frame; 302. Electric telescopic rod; 303. Pressure plate; 304. Rubber strip; 305. First oil filling port; 4. Intermittent structure; 401. Drive shaft; 402. Eccentric wheel; 403. Mounting bracket; 404. Adjusting rod; 405. Limiting rod; 406. Spring; 407. Fixing block; 408. Sliding rod; 409. Connector; 410. Slide groove; 411. Return spring; 412. Push ball; 5. Enclosed structure; 501. Horizontal plate; 502. Sliding column; 503. Baffle; 504. Protrusion; 505. Oil drain groove; 6. Oil seal plate; 61. Gear; 62. Bearing; 63. Snap ring; 7. Second oil inlet. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the present invention provides a technical solution: a speed reducer lubrication device, including a lower housing 1, and an upper housing 2 detachably connected to the top of the lower housing 1; An oil storage structure 3 is provided on the upper part of the outer casing 2; The interior of the upper outer shell 2 is provided with an intermittent structure 4; The oil storage structure 3 has an internal closed structure 5; The intermittent structure 4 includes a mounting bracket 403 fixedly connected to the inner wall of the upper outer shell 2. A drive shaft 401 is engaged between the lower outer shell 1 and the upper outer shell 2. An eccentric wheel 402 is fixedly connected to the outer wall of the drive shaft 401. An adjusting rod 404 is rotatably connected to the end of the eccentric wheel 402 away from the upper outer shell 2. A sliding groove 410 is provided on the adjusting rod 404. A limit rod 405 is fixedly connected to the outer wall of the end of the adjusting rod 404 near the eccentric wheel 402. A spring 406 is provided on the outer wall of the limit rod 405. A fixing block 407 is fixedly connected to the inner top wall of the upper outer shell 2. A sliding rod 408 is slidably connected to the inner wall of the fixed block 407. A connector 409 is fixedly connected to one end of the sliding rod 408 near the adjusting rod 404. A crossbar is provided on the inner wall of the connector 409, and the crossbar is located inside the slide groove 410. A push ball 412 is fixedly connected to one end of the sliding rod 408 away from the connector 409. A return spring 411 is fixedly connected to the outer wall of the sliding rod 408. The end of the return spring 411 away from the connector 409 is fixedly connected to the outer wall of one of the fixed blocks 407. An oil reservoir 31 is fixedly connected to the top of the upper outer shell 2. When in use, after the motor is started, the motor drives the transmission shaft 401 to rotate. At this time, the transmission shaft 401 will drive the eccentric wheel 402 to rotate synchronously. Since the inner wall of the upper housing 2 is fixedly connected to the mounting bracket 403, and the inner wall of the mounting bracket 403 is rotatably connected to the adjusting rod 404, the connection point of the two is used as the fulcrum. When the eccentric wheel 402 rotates with the transmission shaft 401, and the outer wall of the mounting bracket 403 collides with the outer wall of the adjusting rod 404 during the rotation, the adjusting rod 404 rotates with the connection point as the fulcrum. Furthermore, through the cooperation of the connector 409 and the slide groove 410, the slide rod 408 is pushed to slide towards the fixed block 407, which further pushes the push ball 412 to move.

[0029] like Figure 4 , Figure 5 , Figure 6 As shown, the closed structure 5 includes a horizontal plate 501 fixedly connected to the inner wall of the oil reservoir 31. A sliding column 502 is slidably connected to the horizontal plate 501. Five sliding columns 502 are arranged in a linear array on the top of the horizontal plate 501. A baffle 503 is fixedly connected to one end of each of the five sliding columns 502. A protrusion 504 is fixedly connected to the bottom of each of the five baffles 503. An oil drain groove 505 is opened on the outer wall of the end of each of the five sliding columns 502 near the five protrusions 504. There are multiple oil drain grooves 505 on the outer wall of each protrusion 504. The multiple oil drain grooves 505 are arranged in a circumferential array on the outer wall of each sliding column 502 for diverting lubricating oil.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A fixed frame 301 is fixedly connected to the top of the oil tank 31 shown. An electric telescopic rod 302 is fixedly connected to the outer wall of the fixed frame 301. The electric telescopic rod 302 is connected to an external power source. A pressure plate 303 is fixedly connected to the telescopic end of the electric telescopic rod 302. A rubber strip 304 is provided on the outer wall of the pressure plate 303. The electric telescopic rod 302 is located at the center of the top of the oil tank 31, and the connection point between the telescopic end of the electric telescopic rod 302 and the pressure plate 303 is located at the center of the top of the pressure plate 303, so as to improve the stability of the pressure plate 303 during movement.

[0031] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the outer wall of the oil reservoir 31 is provided with a first oil inlet 305, and the outer wall of the lower outer shell 1 is provided with a second oil inlet 7. Both the first oil inlet 305 and the second oil inlet 7 are provided with sealing devices to prevent lubricating oil from overflowing along the first oil inlet 305 or along the second oil inlet 7 when the internal pressure of the lower outer shell 1 changes. The outer wall of the drive shaft 401 is provided with an oil sealing plate 6, and a gear 61 is fixedly connected to the outer wall of the drive shaft 401. A bearing 62 is fixedly connected to the outer wall of the drive shaft 401, and a retaining ring 63 is fixedly connected to the outer wall of the oil sealing plate 6. The outer wall of the bearing 62 fits into the inner wall of the retaining ring 63.

[0032] A method for lubricating a speed reducer, applicable to the aforementioned speed reducer lubrication device, includes the following steps: S1. After the motor is started, the motor drives the transmission shaft 401 to rotate. At this time, the transmission shaft 401 will drive the eccentric wheel 402 to rotate synchronously. Since the inner wall of the upper housing 2 is fixedly connected to the mounting bracket 403, and the inner wall of the mounting bracket 403 is rotatably connected to the adjusting rod 404, the connection point of the two is used as the fulcrum. When the eccentric wheel 402 rotates with the transmission shaft 401, and the outer wall of the mounting bracket 403 collides with the outer wall of the adjusting rod 404 during the rotation, the adjusting rod 404 rotates with the connection point as the fulcrum. Furthermore, through the cooperation of the connector 409 and the slide groove 410, the slide rod 408 is pushed to slide towards the fixed block 407, and the push ball 412 is further pushed to move. S2. When the outer wall of the push ball 412 abuts against the bottom of the protrusion 504, the push ball 412 squeezes the protrusion 504, causing the protrusion 504 to rise. When the protrusion 504 rises, a portion of the sliding column 502 with the oil drain groove 505 is squeezed into the interior of the oil tank 31. At this time, under the pressure inside the oil tank 31, the lubricating oil is sprayed into the interior of the upper housing 2 along the oil drain groove 505. When the lubricating oil comes into contact with the baffle 503, because the top of the baffle 503 is sloped, the lubricating oil will diffuse when it enters the upper housing 2, lubricating the top of the gear 61 inside the upper housing 2. This prevents insufficient lubricating oil from the gear 61 when it starts, which would increase the friction between them and thus prevent the gear 61 from wearing out.

[0033] S3. As the drive shaft 401 rotates continuously, the eccentric wheel 402 continuously presses the adjusting rod 404. Under the action of the limit rod 405 and the spring 406, the adjusting rod 404 rotates back and forth at the connection point between the mounting bracket 403 and the adjusting rod 404, thereby continuously adjusting the height of the slide column 502, realizing the intermittent spraying of lubricating oil and improving the lubrication force during startup.

[0034] Working principle: After the motor is started, the drive shaft 401 is driven to rotate. At this time, the drive shaft 401 will drive the eccentric wheel 402 to rotate synchronously. Since the inner wall of the upper housing 2 is fixedly connected to the mounting bracket 403, and the inner wall of the mounting bracket 403 is rotatably connected to the adjusting rod 404, the connection point of the two is used as the fulcrum. When the eccentric wheel 402 rotates with the drive shaft 401, and the outer wall of the mounting bracket 403 collides with the outer wall of the adjusting rod 404 during the rotation, the adjusting rod 404 rotates with the connection point as the fulcrum. Further, through the cooperation of the connector 409 and the slide groove 410, the slide rod 408 is pushed to slide towards the fixed block 407, which further pushes the push ball 412 to move. When the outer wall of the push ball 412 abuts against the bottom of the protrusion 504, the push ball 412 squeezes the protrusion 504, causing the protrusion 504 to rise. When the protrusion 504 rises, a part of the set The sliding column 502 of the oil drain groove 505 is squeezed into the interior of the oil storage tank 31. At this time, under the pressure inside the oil storage tank 31, the lubricating oil is sprayed into the interior of the upper housing 2 along the oil drain groove 505. When the lubricating oil comes into contact with the baffle 503, because the top of the baffle 503 is sloped, the lubricating oil will diffuse when it enters the upper housing 2, lubricating the top of the gear 61 inside the upper housing 2, avoiding insufficient lubrication of the gear 61 when starting, which would increase the friction between them and thus avoid increased wear of the gear 61. As the drive shaft 401 rotates continuously, the eccentric wheel 402 continuously squeezes the adjusting rod 404. Under the action of the limit rod 405 and the spring 406, the adjusting rod 404 rotates back and forth at the connection point between the mounting bracket 403 and the adjusting rod 404, thereby continuously adjusting the height of the sliding column 502, realizing intermittent spraying of lubricating oil and improving the lubrication force during startup.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention 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 invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A speed reducer lubrication device, comprising a lower housing (1), characterized in that: The top of the lower outer shell (1) is detachably connected to the upper outer shell (2); An oil storage structure (3) is provided above the upper outer shell (2); The upper outer shell (2) is provided with an intermittent structure (4) inside; The oil storage structure (3) is provided with a closed structure (5) inside; The intermittent structure (4) includes a mounting bracket (403) fixedly connected to the inner wall of the upper outer shell (2). A drive shaft (401) is engaged between the lower outer shell (1) and the upper outer shell (2). An eccentric wheel (402) is fixedly connected to the outer wall of the drive shaft (401). An adjusting rod (404) is rotatably connected to the end of the eccentric wheel (402) away from the upper outer shell (2). A sliding groove (410) is provided on the adjusting rod (404). A limit rod (405) is fixedly connected to the outer wall of the end of the adjusting rod (404) near the eccentric wheel (402). A spring (406) is provided on the outer wall of the limit rod (405). A fixing block is fixedly connected to the inner top wall of the upper outer shell (2). 407), the inner wall of the fixed block (407) is slidably connected to a slide rod (408), the end of the slide rod (408) near the adjusting rod (404) is fixedly connected to a connector (409), the inner wall of the connector (409) is provided with a crossbar, and the crossbar is located inside the slide groove (410), the end of the slide rod (408) away from the connector (409) is fixedly connected to a push ball (412), the outer wall of the slide rod (408) is fixedly connected to a return spring (411), the end of the return spring (411) away from the connector (409) is fixedly connected to the outer wall of one of the fixed blocks (407), and the top of the upper outer shell (2) is fixedly connected to an oil reservoir (31).

2. The gearbox lubrication device according to claim 1, characterized in that: The closed structure (5) includes a horizontal plate (501) fixedly connected to the inner wall of the oil storage tank (31), a sliding column (502) slidably connected on the horizontal plate (501), a baffle (503) fixedly connected to one end of the sliding column (502), a protrusion (504) fixedly connected to the bottom of the baffle (503), and an oil drain groove (505) opened on the outer wall of the end of the sliding column (502) near the protrusion (504).

3. A speed reducer lubrication device according to claim 2, characterized in that: Multiple oil drain grooves (505) are provided, and the multiple oil drain grooves (505) are distributed in a circumferential array on the outer wall of the slide column (502) for diverting lubricating oil.

4. A speed reducer lubrication device according to claim 1, characterized in that: The top of the oil storage tank (31) is fixedly connected to a fixed frame (301), and an electric telescopic rod (302) is fixedly connected to the outer wall of the fixed frame (301). The telescopic end of the electric telescopic rod (302) is fixedly connected to a pressure plate (303), and a rubber strip (304) is provided on the outer wall of the pressure plate (303).

5. A speed reducer lubrication device according to claim 4, characterized in that: The electric telescopic rod (302) is located at the top center of the oil tank (31), and the connection point between the telescopic end of the electric telescopic rod (302) and the pressure plate (303) is located at the top center of the pressure plate (303).

6. A speed reducer lubrication device according to claim 5, characterized in that: The outer wall of the oil storage tank (31) is provided with a first oil inlet (305), and the outer wall of the lower outer shell (1) is provided with a second oil inlet (7).

7. A speed reducer lubrication device according to claim 1, characterized in that: The outer side wall of the drive shaft (401) is provided with an oil sealing plate (6), a gear (61) is fixedly connected to the outer side wall of the drive shaft (401), and a bearing (62) is fixedly connected to the outer side wall of the drive shaft (401).

8. A speed reducer lubrication device according to claim 7, characterized in that: The outer wall of the sealing plate (6) is fixedly connected with a retaining ring (63), and the outer wall of the bearing (62) is fitted with the inner wall of the retaining ring (63).

9. A method for lubricating a speed reducer, applicable to the speed reducer lubrication device described in claims 1-8, characterized in that: Includes the following steps: S1. After starting the motor, the motor drives the transmission shaft (401) to rotate. At this time, the transmission shaft (401) will drive the eccentric wheel (402) to rotate synchronously. Since the inner wall of the upper shell (2) is fixedly connected to the mounting bracket (403), and the inner wall of the mounting bracket (403) is rotatably connected to the adjusting rod (404), the connection point of the two is used as the fulcrum. When the eccentric wheel (402) rotates with the transmission shaft (401), and the outer wall of the mounting bracket (403) collides with the outer wall of the adjusting rod (404) during the rotation, the adjusting rod (404) rotates with the connection point as the fulcrum. Furthermore, through the cooperation of the connector (409) and the slide groove (410), the sliding rod (408) is pushed to slide towards the fixed block (407), and the push ball (412) is further pushed to move. S2. When the outer wall of the push ball (412) abuts against the bottom of the protrusion (504), the push ball (412) squeezes the protrusion (504) and causes the protrusion (504) to rise. When the protrusion (504) rises, a portion of the sliding column (502) with the oil drain groove (505) is squeezed into the interior of the oil tank (31). At this time, under the pressure inside the oil tank (31), the lubricating oil is sprayed into the interior of the upper shell (2) along the oil drain groove (505). When the lubricating oil comes into contact with the baffle (503), since the top of the baffle (503) is sloped, the lubricating oil will diffuse when it enters the upper shell (2) and lubricate the top of the gear (61) inside the upper shell (2). This prevents the gear (61) from being insufficiently lubricated when it starts, which would increase the friction between them and thus prevent the gear (61) from being worn out. S3. As the drive shaft (401) rotates continuously, the eccentric wheel (402) continuously squeezes the adjusting rod (404). Under the action of the limit rod (405) and the spring (406), the adjusting rod (404) rotates back and forth at the connection point between the mounting bracket (403) and the adjusting rod (404), thereby continuously adjusting the height of the slide column (502) to achieve intermittent spraying of lubricating oil and improve the lubrication force during startup.

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