Electric machine with self-lubricating system
The elastic locking block structure and oil reservoir design solve the problem of inconvenient cotton core replacement in the motor bearing lubrication system, and realize convenient maintenance and efficient lubrication of the lubrication system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUJI ZHONGXINGYUAN MOTOR TECH CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-06-23
AI Technical Summary
In existing motor bearing lubrication methods, the fixed connection of the cotton core makes subsequent replacement inconvenient, resulting in inconvenient maintenance of the lubrication system.
It adopts a flexible locking block structure, and the combination of L-shaped cotton core and block enables convenient replacement. Combined with the oil reservoir and pipe design, it ensures effective transmission and storage of lubricating oil.
It enables convenient replacement of bearing lubrication systems and effective management of lubricating oil, improving motor maintenance efficiency and lubrication effect.
Smart Images

Figure CN224397564U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor lubrication technology, and in particular relates to a motor with a self-lubricating system. Background Technology
[0002] Electric motors are a widely used type of electrical equipment whose main function is to convert electrical energy into mechanical energy, thereby driving shafts to operate various mechanical devices. Depending on different application requirements, electric motors come in various types, including AC motors, DC motors, and stepper motors, and are widely used in industrial manufacturing, transportation, energy equipment, and everyday household appliances.
[0003] Currently, some existing motors use a cotton wick lubrication system for their internal bearings. This involves wetting a cotton wick through an oil reservoir and then lubricating the bearing through capillary action. To ensure a secure connection, one end of the cotton wick is usually glued to the oil reservoir. However, this method makes it inconvenient to replace the cotton wick later. Therefore, a motor with a self-lubricating system is needed to solve these problems. Utility Model Content
[0004] The purpose of this invention is to provide a motor with a self-lubricating system. By using an elastic top block to elastically lock the locking block connected to the L-shaped cotton core, the locking block can be quickly disassembled, thereby facilitating the convenient replacement of the L-shaped cotton core.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] The motor body, shaft, and bearing are provided. The outer ring of the bearing is fixedly connected to the motor body, and the inner ring of the bearing is fixedly connected to the shaft.
[0007] The easy-to-replace component includes an oil reservoir, a receiving rod, a through pipe, an L-shaped cotton core, a locking block, and a locking slot. One end of the receiving rod is fixedly connected to the side of the motor body, and the other end of the receiving rod is fixedly connected to the oil reservoir. One end of the through pipe is fixedly inserted into the side of the oil reservoir, and the other end of the through pipe is fixedly inserted into the outer ring of the bearing. A section of the L-shaped cotton core is movably connected in the through pipe, and a locking block is fixedly attached to the bottom end of the L-shaped cotton core. A locking slot is opened in the oil reservoir, and a locking block is movably connected in the locking slot.
[0008] By adopting the above technical solution, the motor body, shaft and bearing form the whole motor. The receiving rod is used to connect the motor body and the oil reservoir. The oil reservoir is used to hold lubricating oil. The through pipe is used to connect the oil reservoir and the outer ring of the bearing. One end of the L-shaped cotton core is inserted into the outer ring of the bearing. The L-shaped cotton core is fixedly glued to the top of the locking block. The locking block is movably engaged in the locking groove.
[0009] Preferably, the convenient replacement component further includes a rectangular groove, a spring, and a top block. The rectangular groove is formed on the side of the slot. One end of the spring is fixedly connected to the inside of the rectangular groove, and the other end of the spring is fixedly connected to the top block. The top block is movably connected in the rectangular groove.
[0010] By adopting the above technical solution, the rectangular groove is used for the deformation of the spring and for the movement connection of the top block. The spring is used to generate force on the top block, thereby causing the top block to generate force on the locking block, realizing the elastic limiting connection of the locking block.
[0011] Preferably, the convenient replacement component further includes a slot and a silicone sealing plate, wherein the slot is provided on the oil reservoir and the silicone sealing plate is movably connected in the slot.
[0012] By adopting the above technical solution, the silicone sealing plate can tightly fill the slot and prevent lubricating oil leakage.
[0013] Preferably, the convenient replacement component further includes an oil inlet pipe, which is fixedly inserted into the top of the oil storage box.
[0014] By adopting the above technical solution, the oil inlet pipe is used for adding lubricating oil.
[0015] Preferably, the convenient replacement component further includes a rubber plug, which is movably installed on the oil inlet pipe.
[0016] By adopting the above technical solution, the rubber plug is used to seal the oil inlet pipe and prevent impurities from entering.
[0017] Preferably, the convenient replacement component further includes an oil outlet pipe, which is fixedly inserted into the bottom of the oil storage box.
[0018] By adopting the above technical solution, the oil outlet pipe is used for the discharge of lubricating oil.
[0019] Preferably, the convenient replacement component further includes a valve, and the valve is installed on the oil outlet pipe.
[0020] By adopting the above technical solution, the valve is used to control the opening and closing status of the oil outlet pipe.
[0021] Preferably, it also includes an oil level display component, which includes a float plate, a square groove, and a remaining oil column. The square groove is formed through the oil storage box, and the remaining oil column is movably connected in the square groove. The float plate is fixedly connected to the bottom of the remaining oil column, and the float plate and the remaining oil column are movably connected in the oil storage box.
[0022] By adopting the above technical solution, the float will move the remaining column up and down as the oil level changes, making it easy for users to observe the oil level and add oil in time when it is insufficient.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] This invention features a design where a card block is fixedly attached to the bottom of an L-shaped cotton core, and a rectangular groove is provided in the oil storage box. One end of a spring is fixedly connected to the rectangular groove, while the other end of the spring is fixedly connected to a top block. The top block movably contacts the card block. This design enables the card block to be elastically locked, allowing for convenient and secure insertion and removal of the card block from the groove, thereby facilitating the replacement of the L-shaped cotton core.
[0025] This invention features a square groove running through an oil reservoir, with a movable chain connecting a replenishment column within the groove. A float plate is fixedly connected to the bottom of the replenishment column, which floats within the reservoir. This design allows the replenishment column to move up and down as the oil level in the reservoir changes, enabling the user to determine the amount of oil in the reservoir by the length of the replenishment column protruding from the top of the reservoir, thus facilitating timely replenishment when the oil is nearly depleted.
[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0028] Figure 2 This is a schematic diagram showing the internal component distribution of the oil storage box of this utility model;
[0029] Figure 3 This is a schematic diagram of the top block of this utility model in its natural state;
[0030] Figure 4 A schematic diagram of the square groove of this utility model;
[0031] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.
[0032] In the diagram: 11. Motor body; 12. Shaft; 13. Bearing; 21. Oil reservoir; 22. Support rod; 23. Through pipe; 24. L-shaped cotton core; 25. Locking block; 26. Locking groove; 27. Rectangular groove; 28. Spring; 29. Top block; 210. Slot; 211. Silicone sealing plate; 212. Oil inlet pipe; 213. Rubber plug; 214. Oil outlet pipe; 215. Valve; 31. Float plate; 32. Square groove; 33. Balance column. Detailed Implementation
[0033] 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.
[0034] Example 1:
[0035] Please see Figure 1-5 As shown, a motor with a self-lubricating system includes a motor body 11, a shaft 12, and a bearing 13. The outer ring of the bearing 13 is fixedly connected in the motor body 11, and the inner ring of the bearing 13 is fixedly connected to the shaft 12.
[0036] The easy-to-replace components include an oil reservoir 21, a receiving rod 22, a connecting pipe 23, an L-shaped cotton core 24, a locking block 25, and a locking groove 26. One end of the receiving rod 22 is fixedly connected to the side of the motor body 11, and the other end of the receiving rod 22 is fixedly connected to the oil reservoir 21. One end of the connecting pipe 23 is fixedly inserted into the side of the oil reservoir 21, and the other end of the connecting pipe 23 is fixedly inserted into the outer ring of the bearing 13. A section of the L-shaped cotton core 24 is movably connected in the connecting pipe 23, and the locking block 25 is fixedly glued to the bottom end of the L-shaped cotton core 24. A locking groove 26 is provided in the oil reservoir 21, and the locking block 25 is movably connected in the locking groove 26. The easy-to-replace components also include a rectangular groove 27, a spring 28, and a top block 29. A rectangular groove 27 is provided on the side of the locking groove 26. One end of a spring 28 is fixedly connected to the inner side of the rectangular groove 27, and the other end of the spring 28 is fixedly connected to a top block 29. The top block 29 is movably connected in the rectangular groove 27. The easy-to-replace component also includes a slot 210 and a silicone sealing plate 211. The slot 210 is opened on the oil reservoir 21, and the silicone sealing plate 211 is movably connected in the slot 210. The easy-to-replace component also includes an oil inlet pipe 212, which is fixedly inserted through the top of the oil reservoir 21. The easy-to-replace component also includes a rubber stopper 213, which is movably installed on the oil inlet pipe 212. The easy-to-replace component also includes an oil outlet pipe 214, which is fixedly inserted through the bottom of the oil reservoir 21. The easy-to-replace component also includes a valve 215 and an oil outlet pipe 214. Install valve 215; insert L-shaped cotton core 24 into through pipe 23, continue moving L-shaped cotton core 24 until its top end is inserted into the outer ring of bearing 13, ensuring contact with the balls in bearing 13; then insert one end of locking block 25 into locking groove 26, apply external force to top block 29 with one end of locking block 25, at which time top block 29 moves in rectangular groove 27, and spring 28 is in a compressed state in rectangular groove 27. When locking block 25 is fully inserted into locking groove 26, spring 28 exerts force on top block 29, and top block 29 exerts force on locking block 25, achieving a secure limit on locking block 25; then insert silicone sealing plate 211 into slot 210, and rubber plug 213 from oil inlet pipe 212. Remove the oil and then inject lubricating oil into the oil inlet pipe 212. At this time, the lubricating oil enters the oil reservoir 21 (the level of the injected lubricating oil should be lower than the horizontal height of the through pipe 23). The lubricating oil wets the L-shaped cotton core 24, and the L-shaped cotton core 24 coats the balls in the bearing 13 with lubricating oil to achieve the lubrication effect. When it is necessary to replace the L-shaped cotton core 24, first open the valve 215 to discharge the lubricating oil in the oil reservoir 21 from the oil outlet pipe 214. Then remove the silicone sealing plate 211 from the slot 210. Then remove the L-shaped cotton core 24 together with the locking block 25 from the through pipe 23 and the locking slot 26 respectively. Then repeat the above installation steps of the locking block 25 and the L-shaped cotton core 24 to achieve convenient installation of the L-shaped cotton core 24.
[0037] Example 2:
[0038] Please see Figure 1-5As shown, a motor with a self-lubricating system also includes an oil level display component. The oil level display component includes a float plate 31, a square groove 32, and a remaining oil column 33. The square groove 32 is opened through the oil reservoir 21, and the remaining oil column 33 is movably connected in the square groove 32. The bottom of the remaining oil column 33 is fixedly connected to the float plate 31. The float plate 31 and the remaining oil column 33 are movably connected in the oil reservoir 21. When the oil level drops, the float plate 31 moves down, which in turn drives the remaining oil column 33 to move down along the square groove 32. When the top of the remaining oil column 33 is completely flush with the top of the oil reservoir 21, it indicates that the oil level is almost empty, and oil should be added at this time.
[0039] The working principle is as follows:
[0040] Insert the L-shaped cotton core 24 into the through pipe 23 and continue moving the L-shaped cotton core 24 until its top end is inserted into the outer ring of the bearing 13, ensuring contact with the balls in the bearing 13. Then, insert one end of the locking block 25 into the locking groove 26 and apply external force to the top block 29. At this time, the top block 29 moves in the rectangular groove 27, and the spring 28 is in a compressed state in the rectangular groove 27. When the locking block 25 is fully inserted into the locking groove 26, the spring 28 exerts a force on the top block 29, and the top block 29 exerts a force on the locking block 25, thus firmly limiting the locking block 25. Then, the silicone sealing plate 211 is inserted into the slot 210, and the rubber plug 213 is removed from the oil inlet pipe 212. Then, lubricating oil is injected into the oil inlet pipe 212, and the lubricating oil enters the oil reservoir. In step 21, lubricating oil wets the L-shaped cotton core 24, which then coats the balls in the bearing 13 with lubricating oil, achieving a lubrication effect. When the L-shaped cotton core 24 needs to be replaced, first open valve 215 to discharge the lubricating oil in the oil reservoir 21 from the oil outlet pipe 214. Then, remove the silicone sealing plate 211 from the slot 210. Next, remove the L-shaped cotton core 24 along with the locking block 25 from the through pipe 23 and the locking groove 26, respectively. Then, repeat the above installation steps of the locking block 25 and the L-shaped cotton core 24 to achieve convenient installation of the L-shaped cotton core 24. When the oil level drops, the float plate 31 moves down, which in turn moves the excess column 33 down along the square groove 32. When the top of the excess column 33 is completely flush with the top of the oil reservoir 21, it indicates that the oil level is almost empty, and oil should be added at this time.
[0041] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A motor with a self-lubricating system, characterized in that, include: The motor body (11), shaft (12) and bearing (13) are fixedly connected in the motor body (11) and the shaft (12) is fixedly connected in the inner ring of the bearing (13). The easy-to-replace components include an oil reservoir (21), a receiving rod (22), a connecting pipe (23), an L-shaped cotton core (24), a locking block (25), and a locking groove (26). One end of the receiving rod (22) is fixedly connected to the side of the motor body (11), and the other end of the receiving rod (22) is fixedly connected to the oil reservoir (21). One end of the connecting pipe (23) is fixedly inserted into the side of the oil reservoir (21), and the other end of the connecting pipe (23) is fixedly inserted into the outer ring of the bearing (13). A section of the L-shaped cotton core (24) is movably connected in the connecting pipe (23), and the locking block (25) is fixedly glued to the bottom end of the L-shaped cotton core (24). A locking groove (26) is opened in the oil reservoir (21), and the locking block (25) is movably connected in the locking groove (26).
2. The motor with a self-lubricating system according to claim 1, characterized in that: The convenient replacement component also includes a rectangular groove (27), a spring (28) and a top block (29). The rectangular groove (27) is opened on the side of the slot (26). One end of the spring (28) is fixedly connected to the inside of the rectangular groove (27), and the other end of the spring (28) is fixedly connected to the top block (29). The top block (29) is movably connected in the rectangular groove (27).
3. The motor with a self-lubricating system according to claim 1, characterized in that: The convenient replacement component also includes a slot (210) and a silicone sealing plate (211). The slot (210) is provided on the oil reservoir (21), and the silicone sealing plate (211) is movably connected in the slot (210).
4. A motor with a self-lubricating system according to claim 1, characterized in that: The convenient replacement component also includes an oil inlet pipe (212), which is fixedly inserted into the top of the oil storage box (21).
5. A motor with a self-lubricating system according to claim 4, characterized in that: The convenient replacement component also includes a rubber plug (213), which is movably installed on the oil inlet pipe (212).
6. A motor with a self-lubricating system according to claim 1, characterized in that: The convenient replacement component also includes an oil outlet pipe (214), and the oil outlet pipe (214) is fixedly inserted into the bottom of the oil storage box (21).
7. A motor with a self-lubricating system according to claim 6, characterized in that: The convenient replacement component also includes a valve (215), which is installed on the oil outlet pipe (214).
8. A motor with a self-lubricating system according to claim 1, characterized in that: It also includes an oil level display component, which includes a float plate (31), a square groove (32) and a remaining oil column (33). The square groove (32) is opened through the oil storage box (21). The remaining oil column (33) is movably connected in the square groove (32). The bottom of the remaining oil column (33) is fixedly connected to the float plate (31). The float plate (31) and the remaining oil column (33) are movably connected in the oil storage box (21).