Motor bearing lubricating device

Abstract

The utility model discloses a motor bearing lubricating device which comprises an external assembly, two ends of the external assembly are respectively provided with a half hoop, one end of each half hoop is in threaded connection with an oil storage box, and the output end of each oil storage box is provided with an oil supply pipe. When the oil supply device is used, a user can open the flow control valve arranged on the oil supply pipe and adjust the oil outlet flow of the oil supply pipe, so that when a rotor shaft of the motor rotates subsequently, the oil storage box on the external assembly additionally arranged on the rotor shaft can move along with the rotor shaft, and lubricating oil is driven to uniformly and slowly flow into a bearing inner ring through a mounting hole pre-punched in the rotor shaft of the motor; in addition, a user can add and supplement lubricating oil only by opening the oil adding reserved opening, independent disassembly, assembly and replacement of the oil storage box can be achieved through the threaded connection structure of the locking screw pipe and the half hoop, and therefore the device can supplement the lubricating oil conveniently and is more convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of electric motor lubrication structure technology, specifically to an electric motor bearing lubrication device. Background Technology

[0002] Bearings are often installed at both ends of the rotor shaft of an electric motor. They serve to support rotating parts, reduce friction loss, bear loads, and ensure rotational accuracy and stability. In order to lubricate the bearings and improve their smoothness during use, the bearings are often filled with grease such as lithium-based grease. Seals are also required to form a closed space to prevent grease leakage and the intrusion of external impurities. However, such electric motor bearing lubrication devices still have some defects.

[0003] The grease in electric motor bearing lubrication devices gradually fails due to high temperature and oxidation, requiring periodic shutdowns and disassembly of the bearings and rotor shafts for grease replenishment. Furthermore, the existing enclosed lubrication structure presents problems such as inconvenience in grease replenishment and high manual maintenance costs. Therefore, we propose a novel electric motor bearing lubrication device. Utility Model Content

[0004] The purpose of this invention is to provide a lubrication device for electric motor bearings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a motor bearing lubrication device, comprising an external assembly, both ends of which are provided with semi-clamps, one end of which is threadedly connected to an oil reservoir, the output end of which is provided with an oil supply pipe, a flow control valve installed on the oil supply pipe, a shaft fluid guide tube fixed at the middle position of the semi-clamp, an oil distribution hole, a first sealing ring and a second sealing ring sequentially provided on the shaft fluid guide tube, a first annular airbag sealing layer provided on the outer side wall of the first sealing ring, a second annular airbag sealing layer matching the oil supply pipe provided on the inner side wall of the second sealing ring, an air supply pipe connected to the first annular airbag sealing layer fixed on the semi-clamp, and an air valve and an airbag operating component sequentially installed on the air supply pipe.

[0006] Preferably, locking screws are provided at both the top and bottom of the semi-clamp.

[0007] Preferably, there are two semi-clamps, and the inner sidewalls of the semi-clamps are evenly provided with anti-slip rubber protrusions.

[0008] Preferably, there are two oil storage boxes, and the top of the oil storage box is provided with a refueling port.

[0009] Preferably, a locking screw is fixed to one end of the oil storage box near the oil supply pipe, and the locking screw and the semi-clamp form a threaded connection.

[0010] Preferably, the second sealing ring and the oil supply pipe form an interlocking connection.

[0011] Preferably, a connecting pipe is uniformly arranged at an equal angle between the first sealing ring and the second sealing ring, and the connecting pipe, the first annular airbag sealing layer, and the second annular airbag sealing layer are internally connected.

[0012] Preferably, the top of the airbag operating component is provided with a mounting top plate that is threadedly connected to the air delivery pipe, so as to facilitate the disassembly and maintenance of the airbag operating component on the air delivery pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The motor bearing lubrication device optimizes its performance by installing semi-clamps, etc. On the one hand, by setting the external components as two semi-clamps corresponding to the motor rotor shaft, the two semi-clamps with anti-slip rubber protrusions on their inner walls are snapped onto the motor rotor shaft near the bearing inner ring, and then the two semi-clamps are locked together with screws to realize the assembly of the device on the motor. This external structure exposes the lubrication device to the outside of the motor bearing, which is convenient for easy disassembly and maintenance and has high flexibility. On the other hand, the shaft guide tube on the semi-clamp needs to be inserted into the pre-drilled mounting hole on the motor rotor shaft. This mounting hole and the motor bearing lubrication device are designed to be compatible with the motor bearing lubrication device. The inner rings of the motor bearings are interconnected, which facilitates the flow of lubricating oil through the rotor shaft between the inner and outer rings of the bearings. After assembly, the user can open the air valve on the air supply pipe and continuously press the airbag operating component to inflate the first and second annular airbag sealing layers. This causes the first annular airbag sealing layer to expand and firmly press against the gap between the first sealing ring and the pre-drilled mounting hole on the motor rotor shaft. It also causes the second annular airbag sealing layer to expand and firmly press against the gap between the second sealing ring and the oil supply pipe inserted inside it. This allows the device to efficiently seal the entire oil supply channel, optimize anti-leakage protection, save resources, and reduce pollution.

[0015] (2) The motor bearing lubrication device has optimized its performance by installing an oil supply pipe, etc. The user can open the flow control valve installed on the oil supply pipe and adjust its oil flow rate. When the motor rotor shaft rotates, the oil storage box on the external component installed on it will move accordingly, and drive the lubricating oil to flow evenly and slowly into the bearing inner ring through the pre-drilled mounting hole of the motor rotor shaft, so as to achieve continuous and efficient lubrication of the motor bearing. In addition, the user only needs to open the oil filling port to add and replenish the lubricating oil. The oil storage box can also be independently disassembled and replaced by using the threaded connection structure of the locking screw and the semi-clamp. This makes the device easy to replenish the lubricating oil and more convenient to operate. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a front view structural diagram of the disassembled oil storage box of this utility model;

[0018] Figure 3 This is a rear view structural diagram of the shaft-mounted fluid guiding tube of this utility model;

[0019] Figure 4 This is a side view of the first sealing ring of this utility model.

[0020] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Shaft-mounted fluid guide tube; 2. Semi-clamp; 3. External assembly; 4. Oil reservoir; 5. Oil filling port; 6. Oil supply pipe; 7. Flow control valve; 8. Locking screw; 9. Oil distribution hole; 10. First sealing ring; 11. Second sealing ring; 12. Connecting pipe; 13. First annular airbag sealing layer; 14. Second annular airbag sealing layer; 15. Air supply pipe; 16. Air valve; 17. Mounting top plate; 18. Airbag operating component; 19. Anti-slip rubber protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 An embodiment of this utility model is provided: a motor bearing lubrication device, including an external component 3, with a semi-clamp 2 at both ends of the external component 3, an oil storage box 4 threadedly connected to one end of the semi-clamp 2, an oil supply pipe 6 provided at the output end of the oil storage box 4, and a flow control valve 7 installed on the oil supply pipe 6.

[0024] There are two oil storage boxes 4, and the top of the oil storage box 4 is provided with a refueling port 5;

[0025] A locking screw tube 8 is fixed at one end of the oil storage box 4 near the oil supply pipe 6, and a threaded connection is formed between the locking screw tube 8 and the semi-clamp 2.

[0026] In use, the user can open the flow control valve 7 installed on the oil supply pipe 6 and adjust its oil flow rate. When the motor rotor shaft rotates, the oil storage box 4 on the external component 3 will move accordingly, driving the lubricating oil to flow evenly and slowly into the bearing inner ring through the pre-drilled mounting hole on the motor rotor shaft, thus achieving continuous and efficient lubrication of the motor bearing. Furthermore, the user only needs to open the oil filling port 5 to add and replenish the lubricating oil. The oil storage box 4 can also be independently disassembled and replaced using the threaded connection structure of the locking screw tube 8 and the semi-clamp 2. This makes the device easy to replenish the lubricating oil and more convenient to operate.

[0027] A shaft-mounted liquid guiding tube 1 is fixed at the middle position of the semi-clamp 2. The shaft-mounted liquid guiding tube 1 is provided with an oil distribution hole 9, a first sealing ring 10, and a second sealing ring 11 in sequence.

[0028] The outer wall of the first sealing ring 10 is provided with a first annular airbag sealing layer 13, the inner wall of the second sealing ring 11 is provided with a second annular airbag sealing layer 14 that matches the oil supply pipe 6, and an air supply pipe 15 that is connected to the first annular airbag sealing layer 13 is fixed on the semi-clamp 2.

[0029] An air valve 16 and an airbag operating component 18 are sequentially installed on the air supply pipe 15;

[0030] During use, the shaft-mounted fluid guide tube 1 on the semi-clamp 2 needs to be inserted into the pre-drilled mounting hole on the motor rotor shaft. This mounting hole is connected to the inner ring of the motor bearing, which facilitates the flow of lubricating oil through the rotor shaft between the inner and outer rings of the bearing. After the user completes the assembly, he can open the air valve 16 on the air supply pipe 15 and continuously press the airbag operating component 18 to inflate the first annular airbag sealing layer 13 and the second annular airbag sealing layer 14. This causes the first annular airbag sealing layer 13 to expand and firmly press against the gap between the first sealing ring 10 and the pre-drilled mounting hole on the motor rotor shaft. It also causes the second annular airbag sealing layer 14 to expand and firmly press against the gap between the second sealing ring 11 and the oil supply pipe 6 inserted inside it. This allows the device to efficiently seal the entire oil supply channel, optimize the anti-seepage protection, save resources, and reduce pollution.

[0031] Locking screws are provided at both the top and bottom of the semi-clamp 2;

[0032] Two semi-clamps 2 are provided, and anti-slip rubber protrusions 19 are evenly provided on the inner side wall of the semi-clamps 2;

[0033] In use, by setting the external component 3 as two corresponding motor rotor shaft half clamps 2, the two half clamps 2 with anti-slip rubber protrusions 19 on the inner wall are snapped onto the motor rotor shaft near the bearing inner ring, and then the two half clamps 2 are locked together with screws to realize the assembly of the device on the motor. This external structure exposes the lubrication device to the outside of the motor bearing, which is convenient for easy disassembly and maintenance and has high flexibility.

[0034] The second sealing ring 11 and the oil supply pipe 6 form an interlocking connection;

[0035] A connecting pipe 12 is evenly arranged at equal angles between the first sealing ring 10 and the second sealing ring 11. The connecting pipe 12, the first annular airbag sealing layer 13, and the second annular airbag sealing layer 14 are connected internally.

[0036] The top of the airbag operating component 18 is provided with a mounting top plate 17 that is threadedly connected to the air delivery pipe 15, so as to facilitate the disassembly and maintenance of the airbag operating component 18 on the air delivery pipe 15.

[0037] In this embodiment, the following steps are taken: First, the external assembly 3 consists of two semi-clamps 2 corresponding to the motor rotor shaft. The two semi-clamps 2, with anti-slip rubber protrusions 19 on their inner walls, are snapped onto the motor rotor shaft near the inner ring of the bearing. Then, the two semi-clamps 2 are locked together with screws, thus assembling the device on the motor. This external structure exposes the lubrication device to the outside of the motor bearing, facilitating easy replacement and maintenance, and offering high flexibility. Simultaneously, the shaft-mounted fluid guide tube 1 on the semi-clamp 2 needs to be inserted into a pre-drilled mounting hole on the motor rotor shaft. This mounting hole is connected to the inner ring of the motor bearing, allowing lubricating oil to flow through the rotor shaft between the inner and outer rings of the bearing. After assembly, the user can open the air valve 16 on the air supply pipe 15 and continuously press the airbag operating component 18 to inflate the first annular airbag sealing layer 13 and the second annular airbag sealing layer 14, causing the first annular airbag sealing layer 13 to expand and firmly press against the first... The gap between the sealing ring 10 and the pre-drilled mounting hole on the motor rotor shaft allows the second annular airbag sealing layer 14 to expand and firmly press against the gap between the second sealing ring 11 and the oil supply pipe 6 inserted therein. This enables the device to efficiently seal the entire oil supply channel, optimize anti-seepage protection, save resources, and reduce pollution. In actual operation, the user can open the flow control valve 7 installed on the oil supply pipe 6 and adjust its oil flow rate. When the motor rotor shaft rotates, the oil storage box 4 on the external component 3 will move accordingly, driving the lubricating oil to flow evenly and slowly into the bearing inner ring through the pre-drilled mounting hole on the motor rotor shaft, achieving continuous and efficient lubrication of the motor bearing. Furthermore, the user only needs to open the oil filling port 5 to add and replenish the lubricating oil. The oil storage box 4 can also be independently disassembled and replaced using the threaded connection structure of the locking screw tube 8 and the semi-clamp 2. This makes the device easy to replenish lubricating oil and more convenient to operate.

Claims

1. A lubrication device for an electric motor bearing, characterized in that, The assembly includes an external component (3), both ends of which are provided with a semi-clamp (2). One end of the semi-clamp (2) is threadedly connected to an oil storage box (4). The output end of the oil storage box (4) is provided with an oil supply pipe (6). A flow control valve (7) is installed on the oil supply pipe (6). A shaft-mounted liquid guide tube (1) is fixed at the middle position of the semi-clamp (2). An oil distribution hole (9), a first sealing ring (10), and a second sealing ring (11) are sequentially provided on the shaft-mounted liquid guide tube (1). A first annular airbag sealing layer (13) is provided on the outer wall of the first sealing ring (10). A second annular airbag sealing layer (14) matching the oil supply pipe (6) is provided on the inner wall of the second sealing ring (11). An air supply pipe (15) connected to the first annular airbag sealing layer (13) is fixed on the semi-clamp (2). An air valve (16) and an airbag operating component (18) are sequentially installed on the air supply pipe (15).

2. The electric motor bearing lubrication device according to claim 1, characterized in that: The top and bottom of the semi-clamp (2) are both equipped with locking screws.

3. The electric motor bearing lubrication device according to claim 1, characterized in that: Two semi-clamps (2) are provided, and anti-slip rubber protrusions (19) are evenly provided on the inner side wall of the semi-clamps (2).

4. The electric motor bearing lubrication device according to claim 1, characterized in that: Two oil storage boxes (4) are provided, and a refueling port (5) is provided on the top of the oil storage box (4).

5. The electric motor bearing lubrication device according to claim 1, characterized in that: The oil storage box (4) is fixed with a locking screw (8) at one end near the oil supply pipe (6), and the locking screw (8) and the half clamp (2) form a threaded connection.

6. The electric motor bearing lubrication device according to claim 1, characterized in that: The second sealing ring (11) and the oil supply pipe (6) form an interlocking connection.

7. The electric motor bearing lubrication device according to claim 1, characterized in that: A connecting pipe (12) is uniformly arranged at equal angles between the first sealing ring (10) and the second sealing ring (11). The connecting pipe (12), the first annular airbag sealing layer (13), and the second annular airbag sealing layer (14) are internally connected.

8. The electric motor bearing lubrication device according to claim 1, characterized in that: The top of the airbag operating component (18) is provided with a mounting top plate (17) that is threadedly connected to the air delivery pipe (15).

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