A speed reduction motor with automatic lubrication function and manufacturing method

Abstract

This invention discloses a geared motor with automatic lubrication function and its manufacturing method, belonging to the technical field of transmission devices. The motor includes a motor body, comprising a head and a tail section, with a stator assembly and a rotor assembly housed within the motor body's internal cavity; a gearbox containing a gear set, with a first bearing hole on the end face of the gearbox, into which a first bearing is installed; and an oil injection assembly located at the end of the gearbox for injecting oil into the first bearing hole. The oil injection assembly includes a fixed disc with a mounting housing on it. An oil groove is formed at the bottom of the mounting housing, and an oil injection disc is rotatably mounted within the mounting housing. This invention effectively prevents oil separation in the oil reservoir, allowing the automatic lubricant adding device installed on the geared motor to store a large amount of oil, eliminating the need for frequent replenishment of lubricant to the reservoir.

Description

Technical Field

[0001] This invention relates to a geared motor with automatic lubrication function and its manufacturing method, belonging to the field of transmission device technology. Background Technology

[0002] The drive shaft of a geared motor is usually equipped with bearings. After the geared motor has been running for a long time, lubricant needs to be added to the bearing connection. Therefore, some large geared motors are usually equipped with an automatic lubricant adding device.

[0003] During motor operation, lubricant is injected into the motor at regular intervals and in measured quantities through an automatic lubricant adding device. However, since the lubricant stored in the oil reservoir of the adding device is usually in a static state, the various components with different densities inside are prone to oil separation after being left static for a long time. It needs to be stirred again before it can be used. Therefore, only a small amount of lubricant can be added to the oil reservoir each time it is filled, and it needs to be replenished again after a certain period of time. This means that when such a device is used in large motors, it is necessary to frequently replenish the lubricant in the oil reservoir. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a geared motor with automatic lubrication function and a manufacturing method thereof, which solves the problem that the lubricant in the lubricant adding device cannot be placed for a long time in the prior art.

[0005] The technical problem to be solved by the present invention is achieved by the following technical solution: a geared motor with automatic lubrication function, comprising a motor body, the motor body comprising a head and a tail, wherein a stator assembly and a rotor assembly are disposed in the inner cavity of the motor body;

[0006] A gearbox is located at the head of the motor body. A gear set is provided inside the gearbox. A first bearing hole is opened on the end face of the gearbox. A first bearing is installed in the first bearing hole. A transmission shaft extends outward from the gear set and is connected to the first bearing.

[0007] The oil injection assembly is located at the end of the gearbox and is used to inject oil into the first bearing hole;

[0008] The oil injection assembly includes a fixed plate with a mounting shell on it. The bottom of the mounting shell has an oil groove connected to an oil injection channel. The other end of the oil injection channel extends to the opening of the first bearing hole. An oil injection plate is rotatably mounted inside the mounting shell. An oil storage cavity is provided inside the oil injection plate. Several oil discharge ports connected to the oil storage cavity are provided on the outer ring of the oil injection plate.

[0009] By adopting the above technical solution, oil separation in the oil reservoir can be effectively prevented, allowing the automatic lubricant adding device installed on the geared motor to store a large amount of oil, eliminating the need for frequent replenishment of lubricant. The oil filling disc remains rotating during oil filling. During rotation, the lubricant in the reservoir enters the oil trough from the drain port. Because the oil filling disc is constantly rotating, it provides a certain degree of agitation to the lubricant in the reservoir, effectively preventing sedimentation and ensuring the uniformity of the internal components of the lubricant as it flows into the first bearing hole. This improves the lubrication effect and ensures stable operation of the entire motor.

[0010] The invention is further configured such that: the outer ring of the oil injection plate is provided with a plurality of movable grooves communicating with the oil drain port; the inner walls on both sides of the movable grooves are provided with sliding grooves; an oil control roller is installed in the movable groove through the sliding grooves; an annular groove is opened on the end face of the oil control roller; and a guide plate is provided in the annular groove.

[0011] By adopting the above technical solution, the lubricant can be further agitated, and the lubricant discharge rate can be controlled to prevent excessive discharge. The lubricant discharge rate is achieved by controlling the rotation speed of the oil filling pan; the faster the oil filling pan rotates, the faster the lubricant discharge rate. During the rotation of the oil filling pan, when the oil control roller rotates with the oil filling pan to the oil groove position at the bottom of the mounting housing, the oil control roller slides downwards due to its own weight, causing the oil outlet to open. The lubricant in the oil storage chamber enters the movable groove through the oil outlet, and then enters the annular groove on the end face of the oil control roller through the sliding grooves opened on both sides of the movable groove. As the oil control roller rotates, it flows into the oil groove. During the rotation of the oil filling pan, the faster the oil filling pan rotates, the faster the oil control roller rotates, and the more times it passes through the oil groove position in a certain period of time, thereby increasing the oil filling frequency and accelerating the oil filling speed.

[0012] The present invention is further configured such that: the thickness of the movable groove is equal to the height of the oil control roller, the side of the movable groove connected to the oil outlet is a semi-circular arc surface, and the oil control roller is in contact with the semi-circular arc surface after it is completely retracted into the movable groove.

[0013] By adopting the above technical solution, the inner surface of the movable groove is completely in contact with the oil control roller, which can effectively improve the sealing effect of the oil outlet and prevent oil leakage when the oil outlet leaves the oil groove, thereby improving the stability of the oil injection device. Secondly, after the oil injection roller rotates away from the oil groove, it retracts back into the movable groove. The outer surface of the oil injection roller is in contact with the arc-shaped inner surface of the movable groove, so that there will be no significant interference during rotation, improving the smoothness of transmission.

[0014] The present invention is further configured such that: a sealing cover is provided above the mounting housing, and the inner cavity of the sealing cover and the mounting housing are spliced ​​together to form a circular cavity with the same outer diameter as the oil filling plate.

[0015] By adopting the above technical solution, the circular cavity completely seals the oil filling pan, which rotates within the circular cavity and continuously injects lubricant into the oil groove. The circular cavity effectively prevents external dust, moisture, or contaminants from entering, protecting the cleanliness of the internal lubricating oil. The circular cavity's outer diameter matches that of the oil filling pan, preventing oil splashing or leakage due to gaps.

[0016] The present invention is further configured such that: both ends of the oil control roller extend outward to form sliding ends, and the sliding ends are slidably engaged in the sliding groove.

[0017] By adopting the above technical solution, the oil control roller is slidably engaged in the sliding groove through the sliding end. As the oil injection plate rotates, the roller can rotate synchronously with the rotation of the oil injection plate, thereby reducing the friction between the oil control roller and the circular cavity.

[0018] The present invention is further configured such that: the outer surface of the gearbox is provided with a plurality of fixing holes, and the outer ring of the fixing disk is rotatably mounted with a plurality of fixing rods that are interlocked with the fixing holes.

[0019] By adopting the above technical solution, the entire fixed plate can be quickly disassembled and assembled, simplifying the assembly process and reducing maintenance time costs. The fixing rod can be equipped with a locking nut or elastic buckle to prevent accidental dislodgement caused by long-term vibration.

[0020] The present invention is further configured such that: a sealing groove is provided on the side of the fixed disk near the gearbox, a sealing ring is provided in the sealing groove, and an extension portion is provided on the end face of the gear disk that engages with the sealing groove.

[0021] By adopting the above technical solution, the lubricant injected into the first bearing hole can be prevented from escaping outward, thus improving the sealing performance of the first bearing hole. Furthermore, when the extension is inserted into the sealing groove, it can assist in the rapid alignment of the gear disc and the fixed disc, simplifying the assembly process.

[0022] The present invention is further configured such that: a heat dissipation cavity is provided at the tail end of the motor body, and the heat dissipation cavity is in communication with the inner cavity of the motor body.

[0023] By adopting the above technical solution, the heat dissipation cavity is directly connected to the inner cavity of the motor, forming a natural air cooling channel, which accelerates the discharge of internal hot air, reduces the temperature of the windings and iron core in the rotor, and avoids efficiency reduction or insulation aging caused by overheating.

[0024] The present invention is further configured such that: a central spindle is fixed in the stator assembly, one end of the central spindle is connected to the gearbox, the other end extends into the heat dissipation cavity, and a heat dissipation fan is installed at the end.

[0025] By adopting the above technical solution, the cooling fan rotates synchronously with the central spindle, which can effectively improve the air circulation inside the motor and improve the heat dissipation efficiency.

[0026] This application also relates to a method for manufacturing a geared motor with automatic lubrication function, comprising the following steps:

[0027] The stator assembly and rotor assembly of the motor are sequentially installed in the inner cavity of the motor body. The gear set is assembled in the gearbox. The shaft on the motor rotor is connected to the gear set. The oil injection assembly is fixedly installed on the end face of the gearbox and controlled to inject oil into the first bearing hole.

[0028] By adopting the above technical solution, oil is injected into the first bearing hole at a fixed point through the oil injection component, ensuring that the lubricant for the gear set and bearing reaches the key friction parts directly, avoiding insufficient lubrication or waste.

[0029] The beneficial effects of this invention are:

[0030] The lubrication system allows for real-time lubrication of the geared motor. During lubrication, the synchronous rotation of the lubrication tray agitates the lubricant in the reservoir, preventing sedimentation and separation. This ensures thorough agitation before the lubricant is injected into the first bearing hole, guaranteeing uniform distribution of its components, improving lubrication, and ensuring stable motor operation. The system also allows the reservoir to hold a large amount of lubricant at a time, eliminating the need for repeated replenishment.

[0031] By setting up the oil control roller, the oil injection speed can be controlled to avoid the oil injection speed being too fast or too slow. At the same time, the oil control roller can further agitate the lubricant by sliding and rotating in the movable groove, thereby improving the uniformity of the internal components of the lubricant. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is an exploded view of the present invention;

[0034] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed disk of the present invention in half section.

[0035] Figure 4 This is a three-dimensional structural diagram of the oil filling plate of the present invention;

[0036] Figure 5 This is a schematic diagram of the internal structure of the oil filling plate of the present invention;

[0037] Figure 6 This is a three-dimensional structural diagram of the oil-controlling roller of the present invention;

[0038] Figure 7 This is a three-dimensional structural schematic diagram of another embodiment of the oil-controlling roller of the present invention;

[0039] Figure 8 This is a schematic diagram of the internal workings of the oil storage chamber of the present invention.

[0040] In the diagram: 1. Motor body; 2. Gearbox; 201. First bearing hole; 202. First bearing; 203. Transmission shaft; 204. Fixing hole; 205. Extension; 3. Oil filling assembly; 301. Fixing plate; 302. Mounting housing; 303. Oil trough; 304. Oil filling channel; 305. Oil filling pan; 3051. Oil storage chamber; 3052. Oil drain port; 3053. Live groove; 3054. Sliding groove; 306. Oil control roller; 3061. Annular groove; 3062. Sliding end; 3063. Guide plate; 307. Fixing rod; 308. Sealing groove; 309. Sealing cover; 4. Cooling fan; 5. Control shaft; 6. Drive motor; 7. Second bearing; 8. Second bearing hole. Detailed Implementation

[0041] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific illustrations.

[0042] like Figure 1 As shown, a geared motor with automatic lubrication function includes a motor body 1, which comprises a head and a tail. The motor body 1 has a stator assembly, a rotor assembly, and other essential components used in motors in the prior art housed within its internal cavity. A gearbox 2 is located at the head of the motor body 1, housing a gear set. A first bearing hole 201 is formed on the end face of the gearbox 2, and a first bearing 202 is installed in the first bearing hole 201. A transmission shaft 203 extends outward from the gear set and connects to the first bearing 202. An oil injection assembly 3 is installed at the end of the gearbox 2 for injecting oil into the first bearing hole 201. By injecting lubricant into the first bearing hole 201 at the end of the gearbox 2 through the oil injection assembly 3 at regular intervals and in measured quantities, the stable operation of the geared motor is ensured.

[0043] In this embodiment, please refer to the specific connection structure components. Figures 1 to 6 .

[0044] like Figures 1 to 3As shown, the oil injection assembly 3 includes a fixed plate 301, a mounting housing 302 is provided on the fixed plate 301, an oil injection plate 305 is rotatably arranged inside the mounting housing 302, an oil groove 303 is opened at the bottom of the mounting housing 302, and an oil injection channel 304 is connected to the oil groove 303. After the fixed plate 301 is installed and fixed on the end face of the gearbox 2, the other end of the oil injection channel 304 extends downward to the opening position of the first bearing hole 201.

[0045] like Figure 5 As shown, the oil filling pan 305 has an oil storage cavity 3051 inside, and the outer ring of the oil filling pan 305 has several oil drain ports 3052 connected to the oil storage cavity 3051. The outer ring of the oil filling pan 305 also has several movable grooves 3053 that communicate with the oil drain ports 3052, and sliding grooves 3054 are installed on the inner walls of both sides of the movable grooves 3053. Figure 3 As shown, an oil-controlling roller 306 is installed inside the groove 3053. In this embodiment, the oil-controlling roller 306 is cylindrical in shape, and an annular groove 3061 is formed on the cylindrical end face of the oil-controlling roller 306. Figure 6 As shown, the oil-controlling roller 306 extends outward from both ends to form sliding ends 3062, which are slidably engaged in the sliding groove 3054. Furthermore, the oil-controlling roller 306 is solid internally and made of a high-density material, thereby controlling the overall weight of the oil-controlling roller 306 and allowing it to smoothly slide out of the movable groove 3053 under its own weight when it rotates to the position of the oil groove 303.

[0046] Specifically, the oil reservoir 3051 stores lubricant for refilling. The oil filling pan 305 has a central hole in its center, through which a control shaft 5 passes. This control shaft 5 extends outward to the outer surface of the mounting housing 302 and is connected to a drive motor 6, which is fixed to the outer surface of the mounting housing 302. The drive motor 6 controls the rotation of the oil filling pan 305, causing the oil control rollers 306 on the oil filling pan 305 to rotate synchronously. When the oil control rollers 306 rotate to the bottom of the mounting housing 302, because the oil groove 303 faces downwards from the bottom surface of the mounting housing 302, a portion of the oil control rollers 306 slides out of the movable groove 3053 under its own gravity, opening the oil drain port 3052. The lubricant in the oil reservoir 3051 flows downwards from the oil drain port 3052. At this time, due to the control... The oil roller 306 slides outwards from the outside of the movable groove 3053, so the lubricant can flow into the movable groove 3053 through the oil drain port 3052 and enter the sliding grooves 3054 on both sides of the movable groove 3053. After passing through the sliding grooves 3054, it flows into the annular groove 3061 opened at the end of the oil control roller 306. Under the rotation of the oil control roller 306, it flows into the oil groove 303 and is injected into the first bearing hole 201 in the rotating state through the guiding effect of the oil groove 303 and the oil injection channel 304.

[0047] Through the aforementioned structure and oil injection method, oil separation in the oil reservoir 3051 can be effectively prevented, allowing the automatic lubricant adding device installed on the geared motor to store a large amount of oil, eliminating the need for frequent replenishment of lubricant to the oil reservoir 3051. The oil injection pan 305 remains rotating during oil injection, and during this rotation, the lubricant in the oil reservoir 3051 enters the oil trough 303 from the oil drain port 3052. Because the oil injection pan 305 is constantly rotating, and the oil control roller 306 is also rolling as it passes through the oil trough 303, it can effectively agitate the lubricant in the oil reservoir 3051, preventing lubricant sedimentation and ensuring the uniformity of the internal components of the lubricant when it flows into the first bearing hole 201. This improves the lubrication effect and ensures stable operation of the entire motor.

[0048] like Figure 8 As shown, the connection between the oil groove 303 and the inner wall of the mounting housing 302 is a smooth transition surface. The oil groove 303 is located at the lowest point in the middle of the bottom surface of the mounting housing 302. During the process of the oil control roller 306 rolling down from above with the oil filling pan 305 into the lowest oil groove 303, the distance that the oil control roller 306 slides outward from the movable groove 3053 gradually increases, reaching its maximum after rolling to the bottom. At this point, the most lubricant enters the annular groove 3061. The oil control roller 306 continues to slide outward from the oil filling pan 305... As the oil plate rotates upwards, the oil control roller 306 also rotates in the movable groove 3053. As the oil filling plate 305 rotates upwards, it slides into the movable groove 3053. When the oil control roller 306 is fully inside the movable groove 3053 and re-fits with the arc-shaped surface inside the movable groove 3053, the oil control roller 306 disengages from the oil groove 303. As the oil filling plate 305 continues to rotate, the next oil control roller 306 enters the oil groove 303, drawing out the lubricant in the oil storage chamber 3051, thus achieving automatic oil filling.

[0049] On the other hand, when the oil control roller 306 is at the bottom of the oil groove 303, the amount of lubricant entering the movable groove 3053 is the largest. As the oil control roller 306 slides back into the movable groove 3053, it can push the lubricant in the movable groove 3053 back into the oil storage cavity 3051, thereby further agitating the lubricant.

[0050] In this embodiment, the maximum level of lubricant added to the oil reservoir 3051 does not exceed two-thirds of the diameter of the oil reservoir 3051, and after the oil filling pan 305 is installed onto the mounting housing 302, the distance from the highest point of the oil reservoir 3051 to the end face of the mounting housing 302 does not exceed one-third of the diameter of the oil reservoir 3051. During the oil filling process of the oil filling pan 305, the lubricant in the oil reservoir 3051 can always be kept at the bottom of the oil reservoir 3051, thereby preventing the lubricant from overflowing and improving the stability of the oil filling device.

[0051] In one embodiment, such as Figure 6 As shown, a guide plate 3063 is provided in the annular groove 3061. By cooperating with the rotation of the oil control roller 306, the speed of lubricant injection can be controlled.

[0052] Specifically, the guide plate 3063 divides the annular groove 3061 into multiple smaller annular grooves 3061. The uppermost small annular groove 3061, connected to the sliding groove 3054, allows lubricant to flow in. Initially, the lubricant cannot flow downwards due to the obstruction of the guide plate 3063. When the oil control roller 306 rotates, the small annular groove 3061 containing lubricant rotates to the outside of the movable groove 3053, at which point the lubricant in this small annular groove 3061 can enter the oil groove 303. Meanwhile, the other small annular grooves 3061 move under the rotation of the oil control roller 306 until they align with the sliding groove 3054, continuing to receive lubricant. This cycle repeats, achieving the purpose of continuously injecting oil into the oil groove 303. When the rotation speed of the oil injection plate 305 is faster, the oil control roller 306 passes through the oil groove 303 more frequently, resulting in a larger oil injection volume, and vice versa. By setting the rotation speed of the oil filling plate 305, the lubricant discharge speed is controlled while stirring the lubricant in the oil storage tank 303, preventing the lubricant from being discharged too quickly.

[0053] In another embodiment, such as Figure 7 As shown, the guide plate 3063 has an arc-shaped structure and is inclinedly disposed in the annular groove 3061. Its inclination direction is opposite to the rotation direction of the oil control roller 306, which can guide the lubricant in the annular groove 3061. During the rotation of the oil control roller 306, the lubricant in the annular groove 3061 can be discharged into the oil groove 303 more quickly, reducing the amount of lubricant residue in the annular groove 3061 during the oil injection process and improving the oil injection efficiency.

[0054] like Figure 4 As shown, the thickness of the groove 3053 is equal to the height of the oil control roller 306. The side of the groove 3053 connected to the oil drain port 3052 is a semi-circular arc surface. After the oil control roller 306 is completely retracted into the groove 3053, it fits against the semi-circular arc surface. The inner surface of the groove 3053 is completely fitted with the oil control roller 306, which can effectively improve the sealing effect of the oil drain port 3052 and prevent oil leakage from occurring at the position where the oil drain port 3052 leaves the groove 303. By fitting the outer surface of the oil injection roller against the arc-shaped inner surface of the groove 3053, there will be no significant interference during rotation, improving the smoothness of transmission.

[0055] Furthermore, such as Figure 1As shown, a sealing cover 309 is provided above the mounting housing 302. The inner cavity of the sealing cover 309, when spliced ​​with the mounting housing 302, forms a circular cavity with the same outer diameter as the oil filling pan 305. The circular cavity completely seals the oil filling pan 305, which rotates within the circular cavity and continuously injects lubricant into the oil groove 303. The circular cavity effectively prevents external dust, moisture, or contaminants from entering, protecting the cleanliness of the internal lubricating oil.

[0056] like Figure 2 As shown, the outer surface of the gearbox 2 is provided with several fixing holes 204, and several fixing rods 307 that are interlocked with the fixing holes 204 are rotatably mounted on the outer ring of the fixing disc 301. This enables quick assembly and disassembly of the entire fixing disc 301, simplifies the assembly process, and reduces maintenance time costs. In this embodiment, the fixing rods 307 can be bolts or sliding rods, which are installed with locking nuts or elastic clips, enabling quick assembly and disassembly of the oil injection component 3, reducing the maintenance time cost of the geared motor, and improving maintenance efficiency.

[0057] A sealing groove 308 is provided on the side of the fixed disk 301 near the gearbox 2, and a sealing ring is provided in the sealing groove 308. An extension 205 is provided on the end face of the gear disk, which engages with the sealing groove 308. After the fixed disk 301 is installed on the end face of the gearbox 2, the extension 205 engages in the sealing groove 308 and compresses the elastic sealing ring provided in the sealing groove 308. This causes the sealing ring to be deformed and completely block the sealing groove 308, achieving rapid sealing of the first bearing hole 201. This prevents lubricant from splashing everywhere due to the high-speed rotation of the first bearing 202 in the first bearing hole 201 when lubricant is injected into the first bearing hole 201.

[0058] Furthermore, a second bearing hole 8 is provided in the center of the fixed plate 301, and a second bearing 7 is installed in the second bearing hole 8. A partition is provided between the first bearing 202 and the second bearing 7. The transmission shaft 203 passes through the first bearing 202 and is inserted into the second bearing 7. A protective cover plate (not shown) is installed on the end face of the second bearing hole 8.

[0059] A heat dissipation cavity is provided at the tail end of the motor body 1, which is connected to the inner cavity of the motor body 1. Multiple small holes are opened on the end face of the heat dissipation cavity for airflow. A central spindle is fixed in the stator assembly. One end of the central spindle is connected to the gearbox 2, and the other end extends into the heat dissipation cavity, where a cooling fan 4 is installed. The heat dissipation cavity is directly connected to the inner cavity of the motor, forming a natural air cooling channel. The cooling fan 4 rotates synchronously with the central spindle, effectively improving airflow inside the motor, increasing heat dissipation efficiency, and reducing the temperature of the windings and core in the common rotor during the operation of the geared motor, thus preventing efficiency loss or insulation aging due to overheating.

[0060] This application also relates to a method for manufacturing a geared motor with automatic lubrication function, comprising the following steps:

[0061] The stator assembly and rotor assembly of the motor are installed sequentially in the inner cavity of the motor body 1. The gear set is assembled in the gearbox 2. The shaft on the motor rotor is connected to the gear set. The oil injection assembly 3 is fixedly installed on the end face of the gearbox 2. The oil injection assembly 3 is controlled to inject oil into the first bearing hole 201.

[0062] Specifically, during the installation of the oil filling assembly 3, firstly, the first bearing 202 is fixed in the first bearing hole 201 and interference-fitted with the transmission shaft 203 extending from the gearbox 2. Then, the fixing plate 301 is fixed to the end face of the gearbox 2 via the fixing rod 307. When installing the fixing plate 301, the extension 205 on the gearbox 2 needs to be aligned with the sealing groove 308 before insertion. The second bearing 7 is installed into the second bearing hole 8 and interlocked with the transmission shaft 203. Next, the oil filling pan 305 filled with lubricant is placed into the mounting housing 302, and the control shaft 5 is inserted from the end face of the mounting housing 302 and interlocked with the center hole of the oil filling pan 305. Finally, the sealing cover 309 is installed to the upper opening of the mounting housing 302 to seal the oil filling pan 305. During the entire installation process, attention should be paid to the alignment of the extension 205 with the sealing groove 308, and the fixing plate 301 should be fixed on the gearbox 2 before the oil filling plate 305 and the sealing cover 309 are installed.

[0063] Working principle:

[0064] Please refer to Figure 8During the rotation of the oil filling plate 305, the oil control roller 306 rotates accordingly. Since the oil control roller 306 is slidably set in the movable groove 3053, when the oil control roller 306 rotates to the position of the oil groove 303, it will slide downward due to its own weight, causing the oil drain port 3052 to open. The lubricant in the oil storage chamber 3051 enters the movable groove 3053 through the oil drain port 3052, and enters the annular groove 3061 of the oil control roller 306 through the sliding groove 3054. It then enters the oil groove 303 through the annular groove 3061 and flows into the first bearing hole 201 under the guidance of the oil groove 303 and the oil filling channel 304, thus completing the automatic oil filling. As the oil filling pan 305 continues to rotate, the oil control roller 306 rises and slides back into the movable groove 3053. During this process, the oil control roller 306 pushes the lubricant that has entered the movable groove 3053 back into the oil storage chamber 3051 and re-blocks the oil outlet 3052, ensuring that the lubricant in the oil storage chamber 3051 is always in a flowing state, preventing oil accumulation and separation. Throughout the rotation of the oil filling pan 305, the lubricant remains in the lower region of the oil storage chamber 3051 and generates a certain degree of fluidity under the rotation of the oil filling pan 305. This, combined with the continuous pushing of the lubricant into the movable groove 3053 by the oil control roller 306, agitates the lubricant, allowing it to flow under the rotation of the oil filling pan 305 once lubricant is added to the geared motor.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A geared motor with automatic lubrication function, characterized in that, include: The motor body (1) includes a head and a tail; A gearbox (2) is located at the head of the motor body (1). A gear set is provided inside the gearbox (2). A first bearing hole (201) is opened on the end face of the gearbox (2). A first bearing (202) is installed in the first bearing hole (201). The oil injection assembly (3) is located at the end of the gearbox (2) and is used to inject oil into the first bearing hole (201); The oil injection assembly (3) includes a fixed plate (301), on which a mounting shell (302) is provided. An oil groove (303) is opened at the bottom of the mounting shell (302). The oil groove (303) is connected to an oil injection channel (304). The other end of the oil injection channel (304) extends to the opening position of the first bearing hole (201). An oil injection plate (305) is rotatably arranged inside the mounting shell (302). An oil storage cavity (3051) is provided inside the oil injection plate (305). A plurality of oil drain ports (3052) connected to the oil storage cavity (3051) are provided on the outer ring of the oil injection plate (305).

2. A geared motor with automatic lubrication function according to claim 1, characterized in that: The outer ring of the oil filling plate (305) is also provided with a number of movable grooves (3053) that communicate with the oil drain port (3052). Sliding grooves (3054) are installed on the inner walls of both sides of the movable grooves (3053). Oil control rollers (306) are installed in the movable grooves (3053) through the sliding grooves (3054). An annular groove (3061) is opened on the end face of the oil control rollers (306), and a guide plate (3063) is provided in the annular groove (3061).

3. A geared motor with automatic lubrication function according to claim 2, characterized in that: The thickness of the groove (3053) is equal to the height of the oil control roller (306). The side of the groove (3053) connected to the oil outlet (3052) is a semi-circular arc surface. After the oil control roller (306) is completely retracted into the groove (3053), it fits against the semi-circular arc surface.

4. A geared motor with automatic lubrication function according to claim 1, characterized in that: A sealing cover (309) is provided above the mounting housing (302). The inner cavity of the sealing cover (309) and the mounting housing (302) are spliced ​​together to form a circular cavity with the same outer diameter as the oil filling plate (305).

5. A geared motor with automatic lubrication function according to claim 2, characterized in that: The oil control roller (306) extends outward from both ends to form sliding ends (3062), which are slidably engaged in the sliding groove (3054).

6. A geared motor with automatic lubrication function according to claim 1, characterized in that: The outer surface of the gearbox (2) is provided with a number of fixing holes (204), and the outer ring of the fixing plate (301) is rotatably mounted with a number of fixing rods (307) that are inter-inserted into the fixing holes (204).

7. A geared motor with automatic lubrication function according to claim 1, characterized in that: The fixed disk (301) has a sealing groove (308) on the side near the gearbox (2), and a sealing ring is provided in the sealing groove (308). The end face of the gearbox is provided with an extension (205) that engages with the sealing groove (308).

8. A geared motor with automatic lubrication function according to claim 1, characterized in that: The tail end of the motor body (1) is provided with a heat dissipation cavity, which is connected to the inner cavity of the motor body (1).

9. A geared motor with automatic lubrication function according to claim 8, characterized in that: A central spindle is fixed in the stator assembly inside the geared motor. One end of the central spindle is connected to the gearbox (2), and the other end extends into the heat dissipation cavity, where a heat dissipation fan (4) is installed.

10. A method for manufacturing a geared motor with an automatic lubrication function, specifically applied to the geared motor as described in any one of claims 1-9, characterized in that, Includes the following steps: The stator assembly and rotor assembly of the motor are installed sequentially in the inner cavity of the motor body (1), the gear set is assembled in the gearbox (2), the shaft on the motor rotor is connected to the gear set, the oil injection assembly (3) is fixedly installed on the end face of the gearbox (2), and the oil injection assembly (3) is controlled to inject oil into the first bearing hole (201).

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