Motor spindle with self-lubricating mechanism

Abstract

The utility model relates to the technical field of motor main shaft lubrication, and discloses a motor main shaft with a self-lubricating mechanism, which comprises a shell, a stator, a rotor, a rear cover, fan blades, an axis and a front cover, a boss is arranged at the center of the interior of the shell, clamping grooves are formed in the centers of the front end face and the rear end face of the boss, bearings are arranged in the two clamping grooves, and the bearings are connected with the stator and the rotor. The front end face and the rear end face of the boss are each provided with a first sealing gasket, and the front end of the first sealing gasket close to the front portion and the rear end of the first sealing gasket close to the rear portion are each provided with a check block. According to the utility model, the isolation structure isolates heat generated by the rotor and the stator and prevents the heat from influencing the use of lubricating oil, and the lubricating oil is adsorbed by the oil absorption cotton in the first storage cavity, so that the lubricating oil slowly lubricates the interiors of the two clamping grooves and the two bearings; and redundant lubricating oil enters the second storage cavity through the two leakage grooves to be recycled, and the accumulated lubricating oil is recycled through a backflow structure.

Description

Technical Field

[0001] The utility model relates to the technical field of motor spindle lubrication, in particular to a motor spindle with a self-lubricating mechanism. Background Art

[0002] The motor spindle is usually the component in the motor responsible for supporting and transmitting rotational power. It is an important component connecting the motor drive part and the working part. At present, the motor spindle needs to be supported by bearings during use. Sufficient lubrication must be ensured at the bearing position to reduce friction and wear and extend the bearing life.

[0003] During the use of the existing motor spindle lubrication mechanism, excess lubricating oil accumulates inside the motor after lubrication and cannot be recycled in time. Therefore, technical personnel in this field provide a motor spindle with a self-lubricating mechanism to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a motor spindle with a self-lubricating mechanism is proposed. After lubricating oil is added to the bearing, the excess lubricating oil flows into the two card grooves, and then leaks into the second storage cavity through the two leakage grooves. The lubricating oil thrown inside the boss enters the guide hole through the two guide grooves, and then flows into the second storage cavity through the guide hole. The micro water pump is started to transport the lubricating oil to the first storage cavity for recycling, thereby improving the lubrication efficiency without causing lubricating oil accumulation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor spindle with a self-lubricating mechanism, comprising a housing, a stator, a rotor, a rear cover, a fan blade, an axis and a front cover, wherein the axis is rotatably connected to the front of the housing, the rotor is sleeved at the rear of the outer wall of the axis, the stator is arranged on the inner wall of the outer housing of the rotor, the fan blade is arranged on the outer wall of the axis at the rear end of the rotor, the rear cover is arranged on the rear end surface of the housing, the front cover is sleeved on the outer side of the axis and is fixedly connected to the front end surface of the housing, a boss is arranged at the center of the housing, a slot is opened at the center of the front and rear end surfaces of the boss, bearings are arranged inside the two slots, first sealing gaskets are arranged on the front and rear end surfaces of the boss, and blocks are arranged at the front end of the first sealing gasket and the rear end of the first sealing gasket at the rear;

[0006] The rear end surface of the stopper at the rear is provided with an isolation structure, a second storage cavity is provided at the center of the lower end surface of the shell, a base is provided at the lower part of the second storage cavity, a second sealing gasket is provided at the center of the upper end surface of the base, a reflux structure is provided on the upper end surface of the second sealing gasket, leakage grooves are provided at the upper center of the front and rear inner walls of the second storage cavity, the other ends of the two leakage grooves respectively penetrate to the lower part of the inner walls of the two card slots, a first storage cavity is opened at the upper part of the boss, oil-absorbing cotton is provided inside the first storage cavity, a T-shaped injection hole is provided on the upper inner wall of the first storage cavity, the upper end of the T-shaped injection hole is connected to the upper end surface of the shell, and a dust isolation structure is provided inside, a lubrication tube is provided at the lower center of the front and rear inner walls of the first storage cavity, and the two lubrication tubes are respectively connected to the upper part of the inner walls of the two card slots;

[0007] Through the above technical scheme, when in use, the heat generated by the rotor and the stator is isolated by the isolation structure to prevent the heat from affecting the use of the lubricating oil, and then the lubricating oil is adsorbed by the oil-absorbing cotton inside the first storage chamber, so that the lubricating oil slowly passes through the two lubrication pipes into the two card grooves to lubricate the two bearings, and the excess lubricating oil enters the second storage chamber through the two leakage grooves for recovery, and then the accumulated lubricating oil is recycled through the reflux structure inside the second storage chamber, which can also prevent the accumulation of lubricating oil.

[0008] Furthermore, the insulation structure includes a heat insulation board and a rubber board, and the rubber board is arranged at the front end of the heat insulation board;

[0009] Through the above technical solution, the heat generated by the rotor and the stator is isolated by the heat insulation plate, and then sealed by the rubber plate to prevent the heat from affecting the use of the lubricating oil.

[0010] Furthermore, the dust isolation structure includes a hollow screw plug and filter cotton, wherein the hollow screw plug is threadedly connected to the upper part of the T-shaped injection hole, and the filter cotton is arranged at the upper part of the hollow screw plug;

[0011] Through the above technical solution, the two slots 16 for the lubricating oil in the first storage chamber are convenient for the hollow screw plug 1801 to enter the air, while preventing dust from entering and affecting the use of the lubricating oil.

[0012] Furthermore, the reflux structure includes a micro water pump and a reflux pipe, wherein the reflux pipe is arranged on the output end of the micro water pump, and the end of the reflux pipe passes through the boss and reaches the upper part of the rear inner wall of the first storage cavity;

[0013] Through the above technical solution, by starting the micro water pump, the lubricating oil in the second storage chamber is transported to the first storage chamber through the reflux pipe for recycling.

[0014] Furthermore, a wiring hole is provided at the upper center of the front inner wall of the second storage cavity;

[0015] Through the above technical solution, it is convenient to connect the circuit of the micro water pump through the wiring hole.

[0016] Furthermore, a guide hole is provided at the center of the lower inner wall of the boss, the lower end of the guide hole is connected to the upper inner wall of the second storage cavity, and guide grooves are provided on the lower inner walls of the boss at both ends of the guide hole;

[0017] Through the above technical solution, the lubricating oil on the lower inner wall of the boss is guided to the guide hole through the two guide grooves, and then flows into the second storage cavity through the guide hole.

[0018] Furthermore, a one-way valve is provided at the rear center of the upper end surface of the shell;

[0019] Through the above technical solution, heat is discharged through the one-way valve while dust is prevented from entering.

[0020] Furthermore, a leakage hole is provided at the center of the lower end surface of the base, and the upper end of the leakage hole passes through the lower end surface of the base and the lower end surface of the second sealing gasket in sequence to the upper end surface of the second sealing gasket, and a solid screw plug is provided at the lower part of the leakage hole;

[0021] According to the technical solution, when the device is not used for a long time, the excess lubricating oil can be discharged by removing the solid screw plug.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, after the motor main shaft with a self-lubricating mechanism adds lubricating oil to the bearing, the excess lubricating oil flows into the two slots, and then leaks into the second storage cavity through the two leakage slots. The lubricating oil thrown inside the boss enters the guide hole through the two guide grooves, and then flows into the second storage cavity through the guide hole. The micro water pump is started to transport the lubricating oil to the first storage cavity for recycling, thereby improving the lubrication efficiency without causing lubricating oil accumulation.

[0024] 2. In the utility model, when the axis rotates, the fan blades are driven to rotate, and the heat generated by the rotor and the stator is blown to the front end. The heat generated by the rotor and the stator is isolated by the heat insulation plate, and then sealed by the rubber plate. The heat is blown out through the one-way valve to prevent the heat from affecting the use of the lubricating oil.

[0025] 3. In the utility model, when adding lubricating oil, the hollow screw plug is removed, and the lubricating oil is injected through the T-shaped injection hole. The lubricating oil enters the first storage chamber and is absorbed by the oil-absorbing cotton. The fluidity of the lubricating oil is reduced by the oil-absorbing cotton, and the bearing can be slowly self-lubricated. After the hollow screw plug is installed in the T-shaped injection hole, the hollow screw plug is blocked by the filter cotton. When the lubricating oil enters the two slots, the hollow screw plug enters the air, and at the same time, dust is prevented from entering to affect the use of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of a motor spindle with a self-lubricating mechanism proposed by the utility model;

[0027] Figure 2 This is a three-dimensional side sectional view of a motor spindle with a self-lubricating mechanism proposed by the utility model;

[0028] Figure 3 This is a three-dimensional front cross-sectional view of a motor spindle with a self-lubricating mechanism proposed by the utility model;

[0029] Figure 4 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0030] Figure 5 for Figure 2 A magnified schematic diagram of point B in the middle.

[0031] Legend:

[0032] 1. Shell; 2. Back cover; 3. T-shaped injection hole; 4. Front cover; 5. Axis; 6. Fan blades; 7. Stator; 8. Rotor; 9. Isolation structure; 901. Heat insulation board; 902. Rubber board; 10. Base; 11. First storage chamber; 12. Oil-absorbing cotton; 13. Bearing; 14. Block; 15. First sealing gasket; 16. Slot; 17. Leakage groove; 18. Dust-proof structure; 1801. Hollow screw plug; 1802. Filter cotton; 19. Reflux structure; 1901. Micro water pump; 1902. Reflux pipe; 20. Leakage hole; 21. Second storage chamber; 22. One-way valve; 23. Lubrication pipe; 24. Solid screw plug; 25. Guide groove; 26. Guide hole; 27. Second sealing gasket; 28. Boss. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1-5, the utility model provides an embodiment: a motor spindle with a self-lubricating mechanism, comprising a shell 1, a stator 7, a rotor 8, a rear cover 2, a fan blade 6, an axis 5 and a front cover 4, the axis 5 is rotatably connected to the front of the shell 1, the rotor 8 is sleeved on the rear of the outer wall of the axis 5, the stator 7 is arranged on the inner wall of the shell 1 outside the rotor 8, the fan blade 6 is arranged on the outer wall of the axis 5 at the rear end of the rotor 8, the rear cover 2 is arranged on the rear end surface of the shell 1, the front cover 4 is sleeved on the outer side of the axis 5 and fixedly connected to the front end surface of the shell 1, a boss 28 is provided at the center of the shell 1, a card groove 16 is opened at the center of the front and rear end surfaces of the boss 28, and bearings 13 are provided in the two card grooves 16, and the front and rear end surfaces of the boss 28 are provided with a first sealing gasket 15, and the front end of the first sealing gasket 15 at the front and the rear end of the first sealing gasket 15 at the rear are provided with a stopper 14, and the two stoppers 14 are fixed on the end surface of the boss 28 to limit the two bearings 13 and play a sealing role.

[0035] An isolation structure 9 is provided on the rear end surface of the stopper 14 at the rear. When in use, the heat generated by the rotor 8 and the stator 7 is isolated by the isolation structure 9 to prevent the heat from affecting the use of the lubricating oil. A second storage chamber 21 is provided at the center of the lower end surface of the housing 1. A base 10 is provided at the lower part of the second storage chamber 21. A second sealing gasket 27 is provided at the center of the upper end surface of the base 10. A reflux structure 19 is provided on the upper end surface of the second sealing gasket 27. The accumulated lubricating oil is recycled by the reflux structure 19 inside the second storage chamber 21, which can also prevent the accumulation of lubricating oil. A leakage groove 17 is provided at the upper center of the front and rear inner side walls of the second storage chamber 21. The other ends of the two leakage grooves 17 respectively penetrate to the lower part of the inner wall of the two card slots 16. The remaining lubricating oil enters the second storage chamber 21 through the two leakage grooves 17 for recovery. A first storage chamber 11 is opened at the upper part of the inside of the boss 28, and an oil-absorbing cotton 12 is arranged inside the first storage chamber 11. A T-shaped injection hole 3 is arranged on the inner wall of the first storage chamber 11. The upper end of the T-shaped injection hole 3 is connected to the upper end surface of the outer shell 1, and a dust-proof structure 18 is arranged inside. Lubricating pipes 23 are arranged at the lower center of the front and rear inner walls of the first storage chamber 11. The two lubricating pipes 23 are respectively connected to the upper part of the inner walls of the two card slots 16, and then the lubricating oil is adsorbed by the oil-absorbing cotton 12 inside the first storage chamber 11, so that the lubricating oil slowly passes through the two lubricating pipes 23 into the two card slots 16 to lubricate the two bearings 13.

[0036] The insulating structure 9 includes an insulating plate 901 and a rubber plate 902. The rubber plate 902 is arranged at the front end of the insulating plate 901. The heat generated by the rotor 8 and the stator 7 is insulated by the insulating plate 901, and then sealed by the rubber plate 902 to prevent the heat from affecting the use of the lubricating oil.

[0037] The dust-proof structure 18 includes a hollow screw plug 1801 and filter cotton 1802. The hollow screw plug 1801 is threadedly connected to the upper part of the T-shaped injection hole 3, and the filter cotton 1802 is arranged at the upper part of the hollow screw plug 1801 to facilitate the entry of air into the hollow screw plug 1801 when the two slots 16 of the lubricating oil in the first storage chamber 11 are opened, while preventing dust from entering and affecting the use of the lubricating oil.

[0038] The reflux structure 19 includes a micro water pump 1901 and a reflux pipe 1902. The reflux pipe 1902 is arranged on the output end of the micro water pump 1901, and the end thereof passes through the boss 28 and reaches the upper part of the rear inner wall of the first storage chamber 11. By starting the micro water pump 1901, the lubricating oil in the second storage chamber 21 is transported to the first storage chamber 11 through the reflux pipe 1902 for recycling.

[0039] A wiring hole is provided at the upper center of the front inner wall of the second storage chamber 21, which is convenient for connecting the circuit of the micro water pump 1901 through the wiring hole. A guide hole 26 is provided at the center of the lower inner wall of the boss 28. The lower end of the guide hole 26 leads to the upper inner wall of the second storage chamber 21. Guide grooves 25 are provided on the lower inner wall of the boss 28 at both ends of the guide hole 26. The lubricating oil on the lower inner wall of the boss 28 is guided to the guide hole 26 through the two guide grooves 25, and then flows into the second storage chamber 21 through the guide hole 26.

[0040] A one-way valve 22 is provided at the rear center of the upper end surface of the shell 1, and the one-way valve 22 is used to discharge heat while preventing dust from entering. A leakage hole 20 is provided at the center of the lower end surface of the base 10. The upper end of the leakage hole 20 passes through the lower end surface of the base 10 and the lower end surface of the second sealing gasket 27 in sequence and reaches the upper end surface of the second sealing gasket 27. A solid screw plug 24 is provided at the lower part of the leakage hole 20. When it is not used for a long time, excess lubricating oil can be discharged by removing the solid screw plug 24.

[0041] Working principle: when adding lubricating oil, remove the hollow plug 1801, inject the lubricating oil through the T-shaped injection hole 3, the lubricating oil enters the first storage chamber 11, and is absorbed by the oil-absorbing cotton 12. The fluidity of the lubricating oil is reduced by the oil-absorbing cotton 12, and the bearing 13 can be slowly self-lubricated. After the hollow plug 1801 is installed in the T-shaped injection hole 3, the hollow plug 1801 is blocked by the filter cotton 1802. When the lubricating oil enters the two card slots 16 through the two lubrication pipes 23, the hollow plug 1801 enters the air, and at the same time prevents dust from entering and affecting the use of the lubricating oil. The excess lubricating oil flows into the two card slots 16, and then leaks into the second storage chamber 21 through the two leakage grooves 17. The lubricating oil thrown inside the boss 28 enters the guide hole 26 through the two guide grooves 25, and then flows into the second storage chamber 21 through the guide hole 26 to prevent the accumulation of lubricating oil.

[0042] Start the micro water pump 1901 to transport the lubricating oil to the first storage chamber 11 for recycling, which improves the lubrication efficiency and does not cause lubricating oil accumulation. When the axis 5 rotates, it drives the fan blades 6 to rotate, and blows the heat generated by the rotor 8 and the stator 7 to the front end. The heat generated by the rotor 8 and the stator 7 is isolated by the heat insulation plate 901, and then sealed by the rubber plate 902. The heat is blown out through the one-way valve 22 to prevent the heat from affecting the use of the lubricating oil.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor spindle with a self-lubricating mechanism, comprising a housing (1), a stator (7), a rotor (8), a rear cover (2), blades (6), an axis (5) and a front cover (4), wherein the axis (5) is rotatably connected to the front of the housing (1), the rotor (8) is sleeved on the rear of the outer wall of the axis (5), the stator (7) is arranged on the inner wall of the housing (1) outside the rotor (8), the blades (6) are arranged on the outer wall of the axis (5) at the rear end of the rotor (8), the rear cover (2) is arranged on the rear end surface of the housing (1), the front cover (4) is sleeved on the outside of the axis (5) and fixedly connected to the front end surface of the housing (1), characterized in that: A boss (28) is provided at the center of the housing (1), a slot (16) is provided at the center of both front and rear end surfaces of the boss (28), a bearing (13) is provided inside each of the two slots (16), a first sealing gasket (15) is provided at both front and rear end surfaces of the boss (28), and a stopper (14) is provided at the front end of the first sealing gasket (15) and the rear end of the first sealing gasket (15) at the rear; An isolation structure (9) is provided on the rear end surface of the stopper (14) at the rear, a second storage cavity (21) is provided at the center of the lower end surface of the housing (1), a base (10) is provided at the lower part of the second storage cavity (21), a second sealing gasket (27) is provided at the center of the upper end surface of the base (10), a reflux structure (19) is provided on the upper end surface of the second sealing gasket (27), and leakage grooves (17) are provided at the upper center of the front and rear inner side walls of the second storage cavity (21), and the other ends of the two leakage grooves (17) respectively penetrate into the two card slots (16). A first storage chamber (11) is provided at the lower part of the inner wall and the upper part of the boss (28). An oil-absorbing cotton (12) is provided inside the first storage chamber (11). A T-shaped injection hole (3) is provided on the upper inner wall of the first storage chamber (11). The upper end of the T-shaped injection hole (3) is connected to the upper end surface of the outer shell (1) and a dust isolation structure (18) is provided inside. Lubricating pipes (23) are provided at the lower center of the front and rear inner walls of the first storage chamber (11). The two lubricating pipes (23) are respectively connected to the upper inner walls of the two slots (16).

2. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: The insulating structure (9) comprises a heat insulating plate (901) and a rubber plate (902), wherein the rubber plate (902) is arranged at the front end of the heat insulating plate (901).

3. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: The dust isolation structure (18) comprises a hollow screw plug (1801) and filter cotton (1802); the hollow screw plug (1801) is threadedly connected to the upper part of the interior of the T-shaped injection hole (3); and the filter cotton (1802) is arranged at the upper part of the interior of the hollow screw plug (1801).

4. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: The reflux structure (19) comprises a micro water pump (1901) and a reflux pipe (1902); the reflux pipe (1902) is arranged on the output end of the micro water pump (1901), and the end thereof passes through the boss (28) and reaches the upper portion of the rear inner wall of the first storage chamber (11).

5. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: A wiring hole is provided at the upper center of the front inner wall of the second storage cavity (21).

6. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: A guide hole (26) is provided at the center of the lower inner wall of the boss (28), the lower end of the guide hole (26) communicates with the upper inner wall of the second storage cavity (21), and guide grooves (25) are provided on the lower inner walls of the boss (28) at both ends of the guide hole (26).

7. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: A one-way valve (22) is provided at the rear center of the upper end surface of the housing (1).

8. The motor spindle with a self-lubricating mechanism according to claim 1, characterized in that: A leakage hole (20) is provided at the center of the lower end surface of the base (10), and the upper end of the leakage hole (20) passes through the lower end surface of the base (10) and the lower end surface of the second sealing gasket (27) in sequence to reach the upper end surface of the second sealing gasket (27). A solid screw plug (24) is provided at the lower part of the leakage hole (20).

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